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[PATCH OLK-5.10 v1 0/3] Bugfix backport for rcu
by Wei Li 06 Jun '24

06 Jun '24

Backport 3 bugfix patches for rcu from mainline. Frederic Weisbecker (3): rcu: Defer RCU kthreads wakeup when CPU is dying entry/rcu: Check TIF_RESCHED _after_ delayed RCU wake-up srcu: Fix callbacks acceleration mishandling kernel/entry/common.c | 3 ++- kernel/rcu/srcutree.c | 31 +++++++++++++++++++++++++++++-- kernel/rcu/tree.c | 34 +++++++++++++++++++++++++++++++++- kernel/rcu/tree_exp.h | 3 +-- 4 files changed, 65 insertions(+), 6 deletions(-) -- 2.25.1

2 4

[PATCH openEuler-22.03-LTS-SP1] ubifs: Check @c->dirty_[n|p]n_cnt and @c->nroot state under @c->lp_mutex
by Zhihao Cheng 06 Jun '24

06 Jun '24

mainline inclusion from mainline-v6.8-rc1 commit c07a4dab243a99589bdfd5ec364b5cb1db6b70f3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9VPBQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The checking of @c->nroot->flags and @c->dirty_[n|p]n_cnt in function nothing_to_commit() is not atomic, which could be raced with modifying of lpt, for example: P1 P2 P3 run_gc ubifs_garbage_collect do_commit ubifs_return_leb ubifs_lpt_lookup_dirty dirty_cow_nnode do_commit nothing_to_commit if (test_bit(DIRTY_CNODE, &c->nroot->flags) // false test_and_set_bit(DIRTY_CNODE, &nnode->flags) c->dirty_nn_cnt += 1 ubifs_assert(c, c->dirty_nn_cnt == 0) // false ! Fetch a reproducer in Link: UBIFS error (ubi0:0 pid 2747): ubifs_assert_failed UBIFS assert failed: c->dirty_pn_cnt == 0, in fs/ubifs/commit.c Call Trace: ubifs_ro_mode+0x58/0x70 [ubifs] ubifs_assert_failed+0x6a/0x90 [ubifs] do_commit+0x5b7/0x930 [ubifs] ubifs_run_commit+0xc6/0x1a0 [ubifs] ubifs_sync_fs+0xd8/0x110 [ubifs] sync_filesystem+0xb4/0x120 do_syscall_64+0x6f/0x140 Fix it by checking @c->dirty_[n|p]n_cnt and @c->nroot state with @c->lp_mutex locked. Fixes: 944fdef52ca9 ("UBIFS: do not start the commit if there is nothing to commit") Link: https://bugzilla.kernel.org/show_bug.cgi?id=218162 Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/ubifs/commit.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c index c4fc1047fc07..5b3a840098b0 100644 --- a/fs/ubifs/commit.c +++ b/fs/ubifs/commit.c @@ -69,6 +69,14 @@ static int nothing_to_commit(struct ubifs_info *c) if (c->zroot.znode && ubifs_zn_dirty(c->zroot.znode)) return 0; + /* + * Increasing @c->dirty_pn_cnt/@c->dirty_nn_cnt and marking + * nnodes/pnodes as dirty in run_gc() could race with following + * checking, which leads inconsistent states between @c->nroot + * and @c->dirty_pn_cnt/@c->dirty_nn_cnt, holding @c->lp_mutex + * to avoid that. + */ + mutex_lock(&c->lp_mutex); /* * Even though the TNC is clean, the LPT tree may have dirty nodes. For * example, this may happen if the budgeting subsystem invoked GC to @@ -76,12 +84,15 @@ static int nothing_to_commit(struct ubifs_info *c) * free space. In this case GC would just change the lprops of this * LEB (by turning all space into free space) and unmap it. */ - if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) + if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) { + mutex_unlock(&c->lp_mutex); return 0; + } ubifs_assert(c, atomic_long_read(&c->dirty_zn_cnt) == 0); ubifs_assert(c, c->dirty_pn_cnt == 0); ubifs_assert(c, c->dirty_nn_cnt == 0); + mutex_unlock(&c->lp_mutex); return 1; } -- 2.31.1

2 1

[PATCH OLK-6.6] ubifs: Check @c->dirty_[n|p]n_cnt and @c->nroot state under @c->lp_mutex
by Zhihao Cheng 06 Jun '24

06 Jun '24

mainline inclusion from mainline-v6.8-rc1 commit c07a4dab243a99589bdfd5ec364b5cb1db6b70f3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9VPBQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The checking of @c->nroot->flags and @c->dirty_[n|p]n_cnt in function nothing_to_commit() is not atomic, which could be raced with modifying of lpt, for example: P1 P2 P3 run_gc ubifs_garbage_collect do_commit ubifs_return_leb ubifs_lpt_lookup_dirty dirty_cow_nnode do_commit nothing_to_commit if (test_bit(DIRTY_CNODE, &c->nroot->flags) // false test_and_set_bit(DIRTY_CNODE, &nnode->flags) c->dirty_nn_cnt += 1 ubifs_assert(c, c->dirty_nn_cnt == 0) // false ! Fetch a reproducer in Link: UBIFS error (ubi0:0 pid 2747): ubifs_assert_failed UBIFS assert failed: c->dirty_pn_cnt == 0, in fs/ubifs/commit.c Call Trace: ubifs_ro_mode+0x58/0x70 [ubifs] ubifs_assert_failed+0x6a/0x90 [ubifs] do_commit+0x5b7/0x930 [ubifs] ubifs_run_commit+0xc6/0x1a0 [ubifs] ubifs_sync_fs+0xd8/0x110 [ubifs] sync_filesystem+0xb4/0x120 do_syscall_64+0x6f/0x140 Fix it by checking @c->dirty_[n|p]n_cnt and @c->nroot state with @c->lp_mutex locked. Fixes: 944fdef52ca9 ("UBIFS: do not start the commit if there is nothing to commit") Link: https://bugzilla.kernel.org/show_bug.cgi?id=218162 Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/ubifs/commit.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c index c4fc1047fc07..5b3a840098b0 100644 --- a/fs/ubifs/commit.c +++ b/fs/ubifs/commit.c @@ -69,6 +69,14 @@ static int nothing_to_commit(struct ubifs_info *c) if (c->zroot.znode && ubifs_zn_dirty(c->zroot.znode)) return 0; + /* + * Increasing @c->dirty_pn_cnt/@c->dirty_nn_cnt and marking + * nnodes/pnodes as dirty in run_gc() could race with following + * checking, which leads inconsistent states between @c->nroot + * and @c->dirty_pn_cnt/@c->dirty_nn_cnt, holding @c->lp_mutex + * to avoid that. + */ + mutex_lock(&c->lp_mutex); /* * Even though the TNC is clean, the LPT tree may have dirty nodes. For * example, this may happen if the budgeting subsystem invoked GC to @@ -76,12 +84,15 @@ static int nothing_to_commit(struct ubifs_info *c) * free space. In this case GC would just change the lprops of this * LEB (by turning all space into free space) and unmap it. */ - if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) + if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) { + mutex_unlock(&c->lp_mutex); return 0; + } ubifs_assert(c, atomic_long_read(&c->dirty_zn_cnt) == 0); ubifs_assert(c, c->dirty_pn_cnt == 0); ubifs_assert(c, c->dirty_nn_cnt == 0); + mutex_unlock(&c->lp_mutex); return 1; } -- 2.31.1

2 1

[PATCH OLK-5.10] ubifs: Check @c->dirty_[n|p]n_cnt and @c->nroot state under @c->lp_mutex
by Zhihao Cheng 06 Jun '24

06 Jun '24

mainline inclusion from mainline-v6.8-rc1 commit c07a4dab243a99589bdfd5ec364b5cb1db6b70f3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9VPBQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The checking of @c->nroot->flags and @c->dirty_[n|p]n_cnt in function nothing_to_commit() is not atomic, which could be raced with modifying of lpt, for example: P1 P2 P3 run_gc ubifs_garbage_collect do_commit ubifs_return_leb ubifs_lpt_lookup_dirty dirty_cow_nnode do_commit nothing_to_commit if (test_bit(DIRTY_CNODE, &c->nroot->flags) // false test_and_set_bit(DIRTY_CNODE, &nnode->flags) c->dirty_nn_cnt += 1 ubifs_assert(c, c->dirty_nn_cnt == 0) // false ! Fetch a reproducer in Link: UBIFS error (ubi0:0 pid 2747): ubifs_assert_failed UBIFS assert failed: c->dirty_pn_cnt == 0, in fs/ubifs/commit.c Call Trace: ubifs_ro_mode+0x58/0x70 [ubifs] ubifs_assert_failed+0x6a/0x90 [ubifs] do_commit+0x5b7/0x930 [ubifs] ubifs_run_commit+0xc6/0x1a0 [ubifs] ubifs_sync_fs+0xd8/0x110 [ubifs] sync_filesystem+0xb4/0x120 do_syscall_64+0x6f/0x140 Fix it by checking @c->dirty_[n|p]n_cnt and @c->nroot state with @c->lp_mutex locked. Fixes: 944fdef52ca9 ("UBIFS: do not start the commit if there is nothing to commit") Link: https://bugzilla.kernel.org/show_bug.cgi?id=218162 Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/ubifs/commit.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c index c4fc1047fc07..5b3a840098b0 100644 --- a/fs/ubifs/commit.c +++ b/fs/ubifs/commit.c @@ -69,6 +69,14 @@ static int nothing_to_commit(struct ubifs_info *c) if (c->zroot.znode && ubifs_zn_dirty(c->zroot.znode)) return 0; + /* + * Increasing @c->dirty_pn_cnt/@c->dirty_nn_cnt and marking + * nnodes/pnodes as dirty in run_gc() could race with following + * checking, which leads inconsistent states between @c->nroot + * and @c->dirty_pn_cnt/@c->dirty_nn_cnt, holding @c->lp_mutex + * to avoid that. + */ + mutex_lock(&c->lp_mutex); /* * Even though the TNC is clean, the LPT tree may have dirty nodes. For * example, this may happen if the budgeting subsystem invoked GC to @@ -76,12 +84,15 @@ static int nothing_to_commit(struct ubifs_info *c) * free space. In this case GC would just change the lprops of this * LEB (by turning all space into free space) and unmap it. */ - if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) + if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) { + mutex_unlock(&c->lp_mutex); return 0; + } ubifs_assert(c, atomic_long_read(&c->dirty_zn_cnt) == 0); ubifs_assert(c, c->dirty_pn_cnt == 0); ubifs_assert(c, c->dirty_nn_cnt == 0); + mutex_unlock(&c->lp_mutex); return 1; } -- 2.31.1

2 1

[PATCH openEuler-1.0-LTS] sched: remove WARN_ON on checking rq->tmp_alone_branch
by Hui Tang 06 Jun '24

06 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VPMT --------------------------- Remove warn printk for checking 'rq->tmp_alone_branch != &rq->leaf_cfs_rq_list' to avoid rq deadlock. Deadlock analaze: cpu 0 distribute_cfs_runtime --- rq_lock_irqsave(rq, &rf); ->__warn_printk ->try_to_wake_up --- rq_lock(rq, &rf), deadlock Call Trace: queued_spin_lock_slowpath at ffff000080173358 try_to_wake_up at ffff000080141068 wake_up_process at ffff00008014113c insert_work at ffff000080123750 __queue_work at ffff0000801257ac queue_work_on at ffff000080125c54 drm_fb_helper_dirty at ffff0000806dcd44 drm_fb_helper_sys_imageblit at ffff0000806dcf04 virtio_gpu_3d_imageblit at ffff000000c915d0 [virtio_gpu] soft_cursor at ffff0000805e3e04 bit_cursor at ffff0000805e3654 fbcon_cursor at ffff0000805df404 hide_cursor at ffff000080677d68 vt_console_print at ffff0000806799dc console_unlock at ffff000080183d78 vprintk_emit at ffff000080185948 vprintk_default at ffff000080185b80 vprintk_func at ffff000080186c44 printk at ffff000080186394 __warn_printk at ffff000080102d60 unthrottle_cfs_rq at ffff000080155e50 distribute_cfs_runtime at ffff00008015617c sched_cfs_period_timer at ffff00008015654c __hrtimer_run_queues at ffff0000801b2c58 hrtimer_interrupt at ffff0000801b3c74 arch_timer_handler_virt at ffff00008089dc3c handle_percpu_devid_irq at ffff00008018fb3c generic_handle_irq at ffff000080187140 __handle_domain_irq at ffff000080187adc gic_handle_irq at ffff000080081814 Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/fair.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3bd5aa6dedb3..7361caac39c5 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -395,7 +395,6 @@ static inline void list_del_leaf_cfs_rq(struct cfs_rq *cfs_rq) static inline void assert_list_leaf_cfs_rq(struct rq *rq) { - SCHED_WARN_ON(rq->tmp_alone_branch != &rq->leaf_cfs_rq_list); } /* Iterate thr' all leaf cfs_rq's on a runqueue */ -- 2.34.1

2 1

[PATCH OLK-5.10] dmaengine: fsl-qdma: Fix a memory leak related to the queue command DMA
by Ze Zuo 06 Jun '24

06 Jun '24

From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> stable inclusion from stable-v5.10.210 commit ae6769ba51417c1c86fb645812d5bff455eee802 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q99M CVE: CVE-2024-35833 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 3aa58cb51318e329d203857f7a191678e60bb714 ] This dma_alloc_coherent() is undone neither in the remove function, nor in the error handling path of fsl_qdma_probe(). Switch to the managed version to fix both issues. Fixes: b092529e0aa0 ("dmaengine: fsl-qdma: Add qDMA controller driver for Layerscape SoCs") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Link: https://lore.kernel.org/r/7f66aa14f59d32b13672dde28602b47deb294e1f.17046215… Signed-off-by: Vinod Koul <vkoul(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ze Zuo <zuoze1(a)huawei.com> --- drivers/dma/fsl-qdma.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/dma/fsl-qdma.c b/drivers/dma/fsl-qdma.c index a59d0e743af2..bc0830de08b4 100644 --- a/drivers/dma/fsl-qdma.c +++ b/drivers/dma/fsl-qdma.c @@ -514,11 +514,11 @@ static struct fsl_qdma_queue queue_temp = queue_head + i + (j * queue_num); queue_temp->cq = - dma_alloc_coherent(&pdev->dev, - sizeof(struct fsl_qdma_format) * - queue_size[i], - &queue_temp->bus_addr, - GFP_KERNEL); + dmam_alloc_coherent(&pdev->dev, + sizeof(struct fsl_qdma_format) * + queue_size[i], + &queue_temp->bus_addr, + GFP_KERNEL); if (!queue_temp->cq) return NULL; queue_temp->block_base = fsl_qdma->block_base + -- 2.25.1

2 1

[PATCH OLK-5.10 0/1] memcg: fix input of try_to_free_mem_cgroup_pages
by Chen Ridong 06 Jun '24

06 Jun '24

*** BLURB HERE *** Chen Ridong (1): memcg: fix input of try_to_free_mem_cgroup_pages mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-5.10] afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server
by Zizhi Wo 06 Jun '24

06 Jun '24

From: David Howells <dhowells(a)redhat.com> stable inclusion from stable-v5.14.9 commit e66fc460d6dcf85cf12288e133a081205aebcd97 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4M4 CVE: CVE-2021-47366 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [ Upstream commit b537a3c21775075395af475dcc6ef212fcf29db8 ] AFS-3 has two data fetch RPC variants, FS.FetchData and FS.FetchData64, and Linux's afs client switches between them when talking to a non-YFS server if the read size, the file position or the sum of the two have the upper 32 bits set of the 64-bit value. This is a problem, however, since the file position and length fields of FS.FetchData are *signed* 32-bit values. Fix this by capturing the capability bits obtained from the fileserver when it's sent an FS.GetCapabilities RPC, rather than just discarding them, and then picking out the VICED_CAPABILITY_64BITFILES flag. This can then be used to decide whether to use FS.FetchData or FS.FetchData64 - and also FS.StoreData or FS.StoreData64 - rather than using upper_32_bits() to switch on the parameter values. This capabilities flag could also be used to limit the maximum size of the file, but all servers must be checked for that. Note that the issue does not exist with FS.StoreData - that uses *unsigned* 32-bit values. It's also not a problem with Auristor servers as its YFS.FetchData64 op uses unsigned 64-bit values. This can be tested by cloning a git repo through an OpenAFS client to an OpenAFS server and then doing "git status" on it from a Linux afs client[1]. Provided the clone has a pack file that's in the 2G-4G range, the git status will show errors like: error: packfile .git/objects/pack/pack-5e813c51d12b6847bbc0fcd97c2bca66da50079c.pack does not match index error: packfile .git/objects/pack/pack-5e813c51d12b6847bbc0fcd97c2bca66da50079c.pack does not match index This can be observed in the server's FileLog with something like the following appearing: Sun Aug 29 19:31:39 2021 SRXAFS_FetchData, Fid = 2303380852.491776.3263114, Host 192.168.11.201:7001, Id 1001 Sun Aug 29 19:31:39 2021 CheckRights: len=0, for host=192.168.11.201:7001 Sun Aug 29 19:31:39 2021 FetchData_RXStyle: Pos 18446744071815340032, Len 3154 Sun Aug 29 19:31:39 2021 FetchData_RXStyle: file size 2400758866 ... Sun Aug 29 19:31:40 2021 SRXAFS_FetchData returns 5 Note the file position of 18446744071815340032. This is the requested file position sign-extended. Fixes: b9b1f8d5930a ("AFS: write support fixes") Reported-by: Markus Suvanto <markus.suvanto(a)gmail.com> Signed-off-by: David Howells <dhowells(a)redhat.com> Reviewed-by: Marc Dionne <marc.dionne(a)auristor.com> Tested-by: Markus Suvanto <markus.suvanto(a)gmail.com> cc: linux-afs(a)lists.infradead.org cc: openafs-devel(a)openafs.org Link: https://bugzilla.kernel.org/show_bug.cgi?id=214217#c9 [1] Link: https://lore.kernel.org/r/951332.1631308745@warthog.procyon.org.uk/ Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: fs/afs/fs_probe.c fs/afs/fsclient.c [Simple context conflict adaptation.] Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/afs/fs_probe.c | 8 +++++++- fs/afs/fsclient.c | 30 ++++++++++++++++++++---------- fs/afs/internal.h | 1 + fs/afs/protocol_afs.h | 15 +++++++++++++++ fs/afs/protocol_yfs.h | 6 ++++++ 5 files changed, 49 insertions(+), 11 deletions(-) create mode 100644 fs/afs/protocol_afs.h diff --git a/fs/afs/fs_probe.c b/fs/afs/fs_probe.c index def80365fe79..daaf3810cc92 100644 --- a/fs/afs/fs_probe.c +++ b/fs/afs/fs_probe.c @@ -9,6 +9,7 @@ #include <linux/slab.h> #include "afs_fs.h" #include "internal.h" +#include "protocol_afs.h" #include "protocol_yfs.h" static unsigned int afs_fs_probe_fast_poll_interval = 30 * HZ; @@ -102,7 +103,7 @@ void afs_fileserver_probe_result(struct afs_call *call) struct afs_addr_list *alist = call->alist; struct afs_server *server = call->server; unsigned int index = call->addr_ix; - unsigned int rtt_us = 0; + unsigned int rtt_us = 0, cap0; int ret = call->error; _enter("%pU,%u", &server->uuid, index); @@ -159,6 +160,11 @@ void afs_fileserver_probe_result(struct afs_call *call) clear_bit(AFS_SERVER_FL_IS_YFS, &server->flags); alist->addrs[index].srx_service = call->service_id; } + cap0 = ntohl(call->tmp); + if (cap0 & AFS3_VICED_CAPABILITY_64BITFILES) + set_bit(AFS_SERVER_FL_HAS_FS64, &server->flags); + else + clear_bit(AFS_SERVER_FL_HAS_FS64, &server->flags); } rxrpc_kernel_get_srtt(call->net->socket, call->rxcall, &rtt_us); diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c index 0048a32cb040..bf1fd9d187dc 100644 --- a/fs/afs/fsclient.c +++ b/fs/afs/fsclient.c @@ -483,9 +483,7 @@ void afs_fs_fetch_data(struct afs_operation *op) struct afs_read *req = op->fetch.req; __be32 *bp; - if (upper_32_bits(req->pos) || - upper_32_bits(req->len) || - upper_32_bits(req->pos + req->len)) + if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) return afs_fs_fetch_data64(op); _enter(""); @@ -1149,8 +1147,7 @@ void afs_fs_store_data(struct afs_operation *op) (unsigned long long) size, (unsigned long long) pos, (unsigned long long) i_size); - if (upper_32_bits(pos) || upper_32_bits(i_size) || upper_32_bits(size) || - upper_32_bits(pos + size)) + if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) return afs_fs_store_data64(op, pos, size, i_size); call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData, @@ -1264,7 +1261,7 @@ static void afs_fs_setattr_size(struct afs_operation *op) key_serial(op->key), vp->fid.vid, vp->fid.vnode); ASSERT(attr->ia_valid & ATTR_SIZE); - if (upper_32_bits(attr->ia_size)) + if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) return afs_fs_setattr_size64(op); call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData_as_Status, @@ -1691,20 +1688,33 @@ static int afs_deliver_fs_get_capabilities(struct afs_call *call) return ret; count = ntohl(call->tmp); - call->count = count; call->count2 = count; - afs_extract_discard(call, count * sizeof(__be32)); + if (count == 0) { + call->unmarshall = 4; + call->tmp = 0; + break; + } + + /* Extract the first word of the capabilities to call->tmp */ + afs_extract_to_tmp(call); call->unmarshall++; fallthrough; - /* Extract capabilities words */ case 2: ret = afs_extract_data(call, false); if (ret < 0) return ret; - /* TODO: Examine capabilities */ + afs_extract_discard(call, (count - 1) * sizeof(__be32)); + call->unmarshall++; + fallthrough; + + /* Extract remaining capabilities words */ + case 3: + ret = afs_extract_data(call, false); + if (ret < 0) + return ret; call->unmarshall++; break; diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 31c7a562147c..94d544fc3353 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -510,6 +510,7 @@ struct afs_server { #define AFS_SERVER_FL_IS_YFS 16 /* Server is YFS not AFS */ #define AFS_SERVER_FL_NO_IBULK 17 /* Fileserver doesn't support FS.InlineBulkStatus */ #define AFS_SERVER_FL_NO_RM2 18 /* Fileserver doesn't support YFS.RemoveFile2 */ +#define AFS_SERVER_FL_HAS_FS64 19 /* Fileserver supports FS.{Fetch,Store}Data64 */ atomic_t ref; /* Object refcount */ atomic_t active; /* Active user count */ u32 addr_version; /* Address list version */ diff --git a/fs/afs/protocol_afs.h b/fs/afs/protocol_afs.h new file mode 100644 index 000000000000..0c39358c8b70 --- /dev/null +++ b/fs/afs/protocol_afs.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* AFS protocol bits + * + * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells(a)redhat.com) + */ + + +#define AFSCAPABILITIESMAX 196 /* Maximum number of words in a capability set */ + +/* AFS3 Fileserver capabilities word 0 */ +#define AFS3_VICED_CAPABILITY_ERRORTRANS 0x0001 /* Uses UAE errors */ +#define AFS3_VICED_CAPABILITY_64BITFILES 0x0002 /* FetchData64 & StoreData64 supported */ +#define AFS3_VICED_CAPABILITY_WRITELOCKACL 0x0004 /* Can lock a file even without lock perm */ +#define AFS3_VICED_CAPABILITY_SANEACLS 0x0008 /* ACLs reviewed for sanity - don't use */ diff --git a/fs/afs/protocol_yfs.h b/fs/afs/protocol_yfs.h index b5bd03b1d3c7..e4cd89c44c46 100644 --- a/fs/afs/protocol_yfs.h +++ b/fs/afs/protocol_yfs.h @@ -168,3 +168,9 @@ enum yfs_lock_type { yfs_LockMandatoryWrite = 0x101, yfs_LockMandatoryExtend = 0x102, }; + +/* RXYFS Viced Capability Flags */ +#define YFS_VICED_CAPABILITY_ERRORTRANS 0x0001 /* Deprecated v0.195 */ +#define YFS_VICED_CAPABILITY_64BITFILES 0x0002 /* Deprecated v0.195 */ +#define YFS_VICED_CAPABILITY_WRITELOCKACL 0x0004 /* Can lock a file even without lock perm */ +#define YFS_VICED_CAPABILITY_SANEACLS 0x0008 /* Deprecated v0.195 */ -- 2.39.2

2 1

[PATCH OLK-5.10 0/3] ext4 bugfix from mainline
by Yang Erkun 06 Jun '24

06 Jun '24

Christoph Hellwig (1): iomap: update ki_pos a little later in iomap_dio_complete Jan Kara (2): ext4: properly sync file size update after O_SYNC direct IO ext4: fix warning in ext4_dio_write_end_io() fs/ext4/file.c | 154 +++++++++++++++++++------------------------ fs/iomap/direct-io.c | 19 +++--- 2 files changed, 78 insertions(+), 95 deletions(-) -- 2.39.2

2 4

[PATCH openEuler-22.03-LTS-SP1 0/3] ext4 bugfix from mainline
by Yang Erkun 06 Jun '24

06 Jun '24

Christoph Hellwig (1): iomap: update ki_pos a little later in iomap_dio_complete Jan Kara (2): ext4: properly sync file size update after O_SYNC direct IO ext4: fix warning in ext4_dio_write_end_io() fs/ext4/file.c | 154 +++++++++++++++++++------------------------ fs/iomap/direct-io.c | 19 +++--- 2 files changed, 78 insertions(+), 95 deletions(-) -- 2.39.2

2 4

[PATCH openEuler-22.03-LTS-SP1 1/3] iomap: update ki_pos a little later in iomap_dio_complete
by Yang Erkun 06 Jun '24

06 Jun '24

From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v6.4-rc6 commit 936e114a245b6e38e0dbf706a67e7611fc993da1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VOEK Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Move the ki_pos update down a bit to prepare for a better common helper that invalidates pages based of an iocb. Link: https://lkml.kernel.org/r/20230601145904.1385409-3-hch@lst.de Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Damien Le Moal <dlemoal(a)kernel.org> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Reviewed-by: Darrick J. Wong <djwong(a)kernel.org> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: Andreas Gruenbacher <agruenba(a)redhat.com> Cc: Anna Schumaker <anna(a)kernel.org> Cc: Chao Yu <chao(a)kernel.org> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Ilya Dryomov <idryomov(a)gmail.com> Cc: Jaegeuk Kim <jaegeuk(a)kernel.org> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: Johannes Thumshirn <johannes.thumshirn(a)wdc.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Miklos Szeredi <miklos(a)szeredi.hu> Cc: Miklos Szeredi <mszeredi(a)redhat.com> Cc: Theodore Ts'o <tytso(a)mit.edu> Cc: Trond Myklebust <trond.myklebust(a)hammerspace.com> Cc: Xiubo Li <xiubli(a)redhat.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Conflicts: fs/iomap/direct-io.c [4fdccaa0d184 ("iomap: Add done_before argument to iomap_dio_rw") not merged] Signed-off-by: Yang Erkun <yangerkun(a)huawei.com> --- fs/iomap/direct-io.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 892a4f8109e5..ad12ffcc5085 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -94,7 +94,6 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) if (offset + ret > dio->i_size && !(dio->flags & IOMAP_DIO_WRITE)) ret = dio->i_size - offset; - iocb->ki_pos += ret; } /* @@ -121,13 +120,17 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) } inode_dio_end(file_inode(iocb->ki_filp)); - /* - * If this is a DSYNC write, make sure we push it to stable storage now - * that we've written data. - */ - if (ret > 0 && (dio->flags & IOMAP_DIO_NEED_SYNC)) { - WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); - ret = generic_write_sync(iocb, ret); + if (ret > 0) { + iocb->ki_pos += ret; + + /* + * If this is a DSYNC write, make sure we push it to stable + * storage now that we've written data. + */ + if (dio->flags & IOMAP_DIO_NEED_SYNC) { + WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); + ret = generic_write_sync(iocb, ret); + } } kfree(dio); -- 2.39.2

2 4

[PATCH OLK-5.10] octeontx2-af: avoid off-by-one read from userspace
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Bui Quang Minh <minhquangbui99(a)gmail.com> stable inclusion from stable-v5.10.217 commit bcdac70adceb44373da204c3c297f2a98e13216e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM64 CVE: CVE-2024-36957 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f299ee709fb45036454ca11e90cb2810fe771878 ] We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead. Fixes: 3a2eb515d136 ("octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()") Signed-off-by: Bui Quang Minh <minhquangbui99(a)gmail.com> Link: https://lore.kernel.org/r/20240424-fix-oob-read-v2-6-f1f1b53a10f4@gmail.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index 24ebcf3d0c9c..0b1fe56eb477 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -420,12 +420,10 @@ static ssize_t rvu_dbg_qsize_write(struct file *filp, u16 pcifunc; int ret, lf; - cmd_buf = memdup_user(buffer, count + 1); + cmd_buf = memdup_user_nul(buffer, count); if (IS_ERR(cmd_buf)) return -ENOMEM; - cmd_buf[count] = '\0'; - cmd_buf_tmp = strchr(cmd_buf, '\n'); if (cmd_buf_tmp) { *cmd_buf_tmp = '\0'; -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] octeontx2-af: avoid off-by-one read from userspace
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Bui Quang Minh <minhquangbui99(a)gmail.com> stable inclusion from stable-v5.10.217 commit bcdac70adceb44373da204c3c297f2a98e13216e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM64 CVE: CVE-2024-36957 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f299ee709fb45036454ca11e90cb2810fe771878 ] We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead. Fixes: 3a2eb515d136 ("octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()") Signed-off-by: Bui Quang Minh <minhquangbui99(a)gmail.com> Link: https://lore.kernel.org/r/20240424-fix-oob-read-v2-6-f1f1b53a10f4@gmail.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index 5205796859f6..d212bab3ddba 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -420,12 +420,10 @@ static ssize_t rvu_dbg_qsize_write(struct file *filp, u16 pcifunc; int ret, lf; - cmd_buf = memdup_user(buffer, count + 1); + cmd_buf = memdup_user_nul(buffer, count); if (IS_ERR(cmd_buf)) return -ENOMEM; - cmd_buf[count] = '\0'; - cmd_buf_tmp = strchr(cmd_buf, '\n'); if (cmd_buf_tmp) { *cmd_buf_tmp = '\0'; -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++ 1 file changed, 3 insertions(+) -- 2.34.1

2 2

[PATCH OLK-5.10 1/3] iomap: update ki_pos a little later in iomap_dio_complete
by Yang Erkun 06 Jun '24

06 Jun '24

From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v6.4-rc6 commit 936e114a245b6e38e0dbf706a67e7611fc993da1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VOEK Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Move the ki_pos update down a bit to prepare for a better common helper that invalidates pages based of an iocb. Link: https://lkml.kernel.org/r/20230601145904.1385409-3-hch@lst.de Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Damien Le Moal <dlemoal(a)kernel.org> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Reviewed-by: Darrick J. Wong <djwong(a)kernel.org> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: Andreas Gruenbacher <agruenba(a)redhat.com> Cc: Anna Schumaker <anna(a)kernel.org> Cc: Chao Yu <chao(a)kernel.org> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Ilya Dryomov <idryomov(a)gmail.com> Cc: Jaegeuk Kim <jaegeuk(a)kernel.org> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: Johannes Thumshirn <johannes.thumshirn(a)wdc.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Miklos Szeredi <miklos(a)szeredi.hu> Cc: Miklos Szeredi <mszeredi(a)redhat.com> Cc: Theodore Ts'o <tytso(a)mit.edu> Cc: Trond Myklebust <trond.myklebust(a)hammerspace.com> Cc: Xiubo Li <xiubli(a)redhat.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Conflicts: fs/iomap/direct-io.c [4fdccaa0d184 ("iomap: Add done_before argument to iomap_dio_rw") not merged] Signed-off-by: Yang Erkun <yangerkun(a)huawei.com> --- fs/iomap/direct-io.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 892a4f8109e5..ad12ffcc5085 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -94,7 +94,6 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) if (offset + ret > dio->i_size && !(dio->flags & IOMAP_DIO_WRITE)) ret = dio->i_size - offset; - iocb->ki_pos += ret; } /* @@ -121,13 +120,17 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) } inode_dio_end(file_inode(iocb->ki_filp)); - /* - * If this is a DSYNC write, make sure we push it to stable storage now - * that we've written data. - */ - if (ret > 0 && (dio->flags & IOMAP_DIO_NEED_SYNC)) { - WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); - ret = generic_write_sync(iocb, ret); + if (ret > 0) { + iocb->ki_pos += ret; + + /* + * If this is a DSYNC write, make sure we push it to stable + * storage now that we've written data. + */ + if (dio->flags & IOMAP_DIO_NEED_SYNC) { + WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); + ret = generic_write_sync(iocb, ret); + } } kfree(dio); -- 2.39.2

2 3

[PATCH openEuler-1.0-LTS 0/7] arm64 mpam fix patch
by Yu Liao 06 Jun '24

06 Jun '24

Some bugfix patches to address mpam issues. Yu Liao (7): mpam/resctrl: Fix a deadlock due to inaccurate reference mpam/resctrl: Clean up unused function parameter in mkdir path mpam/resctrl: Clean up resctrl_group_rmdir_[ctrl/mon]() mpam/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup arm64/mpam: change allocation mode from GFP_KERNEL to GFP_NOWAIT arm64/mpam: Fix wrong seconds to jiffies conversion arm64/mpam: Fix softlockup when reading mondata arch/arm64/kernel/mpam/mpam_ctrlmon.c | 3 ++ arch/arm64/kernel/mpam/mpam_resctrl.c | 6 +-- fs/resctrlfs.c | 57 ++++++++++----------------- 3 files changed, 27 insertions(+), 39 deletions(-) -- 2.33.0

2 8

[PATCH openEuler-22.03-LTS-SP1 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.34.1

2 2

[PATCH OLK-5.10 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS] ubifs: Set page uptodate in the correct place
by Wang Zhaolong 06 Jun '24

06 Jun '24

From: "Matthew Wilcox (Oracle)" <willy(a)infradead.org> stable inclusion from stable-v5.10.215 commit 8f599ab6fabbca4c741107eade70722a98adfd9f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q97O CVE: CVE-2024-35821 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 723012cab779eee8228376754e22c6594229bf8f ] Page cache reads are lockless, so setting the freshly allocated page uptodate before we've overwritten it with the data it's supposed to have in it will allow a simultaneous reader to see old data. Move the call to SetPageUptodate into ubifs_write_end(), which is after we copied the new data into the page. Fixes: 1e51764a3c2a ("UBIFS: add new flash file system") Cc: stable(a)vger.kernel.org Signed-off-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Reviewed-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: fs/ubifs/file.c [Conflicting patch 3b67db8a6ca8 ("ubifs: Fix to add refcount once page is set private") is not adapted and merged into the current branch.] Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> --- fs/ubifs/file.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 1b78f2e09218..25f5548cbc45 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -274,9 +274,6 @@ static int write_begin_slow(struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } if (PagePrivate(page)) @@ -475,9 +472,6 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } err = allocate_budget(c, page, ui, appending); @@ -487,10 +481,8 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, * If we skipped reading the page because we were going to * write all of it, then it is not up to date. */ - if (skipped_read) { + if (skipped_read) ClearPageChecked(page); - ClearPageUptodate(page); - } /* * Budgeting failed which means it would have to force * write-back but didn't, because we set the @fast flag in the @@ -581,6 +573,9 @@ static int ubifs_write_end(struct file *file, struct address_space *mapping, goto out; } + if (len == PAGE_SIZE) + SetPageUptodate(page); + if (!PagePrivate(page)) { SetPagePrivate(page); atomic_long_inc(&c->dirty_pg_cnt); -- 2.34.3

2 1

[PATCH OLK-5.10] net: hns3: fix kernel crash when devlink reload during initialization
by Ye Bin 06 Jun '24

06 Jun '24

From: Yonglong Liu <liuyonglong(a)huawei.com> mainline inclusion from mainline-v6.9 commit 35d92abfbad88cf947c010baf34b075e40566095 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U3H2 CVE: CVE-2024-36900 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The devlink reload process will access the hardware resources, but the register operation is done before the hardware is initialized. So, processing the devlink reload during initialization may lead to kernel crash. This patch fixes this by registering the devlink after hardware initialization. Fixes: cd6242991d2e ("net: hns3: add support for registering devlink for VF") Fixes: 93305b77ffcb ("net: hns3: fix kernel crash when devlink reload during pf initialization") Signed-off-by: Yonglong Liu <liuyonglong(a)huawei.com> Signed-off-by: Jijie Shao <shaojijie(a)huawei.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Conflicts: drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c [fix context diff] Signed-off-by: Ye Bin <yebin10(a)huawei.com> --- .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 12 +++++------- .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 10 ++++------ 2 files changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 664c96618a09..e4edc1476e3f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -12526,14 +12526,10 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) if (ret) goto out; - ret = hclge_devlink_init(hdev); - if (ret) - goto err_pci_uninit; - /* Firmware command queue initialize */ ret = hclge_comm_cmd_queue_init(hdev->pdev, &hdev->hw.hw); if (ret) - goto err_devlink_uninit; + goto err_pci_uninit; /* Firmware command initialize */ hclge_comm_cmd_init_ops(&hdev->hw.hw, &hclge_cmq_ops); @@ -12724,6 +12720,10 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) dev_warn(&pdev->dev, "failed to wake on lan init, ret = %d\n", ret); + ret = hclge_devlink_init(hdev); + if (ret) + goto err_ptp_uninit; + hclge_state_init(hdev); hdev->last_reset_time = jiffies; @@ -12747,8 +12747,6 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) pci_free_irq_vectors(pdev); err_cmd_uninit: hclge_comm_cmd_uninit(hdev->ae_dev, &hdev->hw.hw); -err_devlink_uninit: - hclge_devlink_uninit(hdev); err_pci_uninit: pcim_iounmap(pdev, hdev->hw.hw.io_base); pci_clear_master(pdev); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index a92daa417af7..e8b61b5f0f88 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -3091,10 +3091,6 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) if (ret) return ret; - ret = hclgevf_devlink_init(hdev); - if (ret) - goto err_devlink_init; - ret = hclge_comm_cmd_queue_init(hdev->pdev, &hdev->hw.hw); if (ret) goto err_cmd_queue_init; @@ -3191,6 +3187,10 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) hclgevf_init_rxd_adv_layout(hdev); + ret = hclgevf_devlink_init(hdev); + if (ret) + goto err_config; + set_bit(HCLGEVF_STATE_SERVICE_INITED, &hdev->state); hdev->last_reset_time = jiffies; @@ -3210,8 +3210,6 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) err_cmd_init: hclge_comm_cmd_uninit(hdev->ae_dev, &hdev->hw.hw); err_cmd_queue_init: - hclgevf_devlink_uninit(hdev); -err_devlink_init: hclgevf_pci_uninit(hdev); clear_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state); return ret; -- 2.31.1

2 1

[PATCH openEuler-22.03-LTS-SP1] mptcp: ensure snd_nxt is properly initialized on connect
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Paolo Abeni <pabeni(a)redhat.com> stable inclusion from stable-v5.10.218 commit 99951b62bf20cec9247f633a3bea898338b9e5b4 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UBJQ CVE: CVE-2024-36889 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit fb7a0d334894206ae35f023a82cad5a290fd7386 upstream. Christoph reported a splat hinting at a corrupted snd_una: WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Modules linked in: CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014 Workqueue: events mptcp_worker RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8 8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe <0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9 RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4 RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000 R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0 Call Trace: <TASK> __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline] mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline] __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615 mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767 process_one_work+0x1e0/0x560 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x3c7/0x640 kernel/workqueue.c:3416 kthread+0x121/0x170 kernel/kthread.c:388 ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 </TASK> When fallback to TCP happens early on a client socket, snd_nxt is not yet initialized and any incoming ack will copy such value into snd_una. If the mptcp worker (dumbly) tries mptcp-level re-injection after such ack, that would unconditionally trigger a send buffer cleanup using 'bad' snd_una values. We could easily disable re-injection for fallback sockets, but such dumb behavior already helped catching a few subtle issues and a very low to zero impact in practice. Instead address the issue always initializing snd_nxt (and write_seq, for consistency) at connect time. Fixes: 8fd738049ac3 ("mptcp: fallback in case of simultaneous connect") Cc: stable(a)vger.kernel.org Reported-by: Christoph Paasch <cpaasch(a)apple.com> Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/485 Tested-by: Christoph Paasch <cpaasch(a)apple.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Reviewed-by: Mat Martineau <martineau(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://lore.kernel.org/r/20240429-upstream-net-20240429-mptcp-snd_nxt-init… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> [ snd_nxt field is not available in v5.10.y: before, only write_seq was used, see commit eaa2ffabfc35 ("mptcp: introduce MPTCP snd_nxt") for more details about that. ] Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- net/mptcp/protocol.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index f0a5d8371228..22ed394295a7 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2648,6 +2648,8 @@ static int mptcp_stream_connect(struct socket *sock, struct sockaddr *uaddr, if (subflow->request_mptcp && mptcp_token_new_connect(ssock->sk)) mptcp_subflow_early_fallback(msk, subflow); + WRITE_ONCE(msk->write_seq, subflow->idsn); + do_connect: err = ssock->ops->connect(ssock, uaddr, addr_len, flags); sock->state = ssock->state; -- 2.17.1

2 1

[PATCH OLK-5.10] mptcp: ensure snd_nxt is properly initialized on connect
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Paolo Abeni <pabeni(a)redhat.com> stable inclusion from stable-v5.10.218 commit 99951b62bf20cec9247f633a3bea898338b9e5b4 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UBJQ CVE: CVE-2024-36889 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit fb7a0d334894206ae35f023a82cad5a290fd7386 upstream. Christoph reported a splat hinting at a corrupted snd_una: WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Modules linked in: CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014 Workqueue: events mptcp_worker RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8 8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe <0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9 RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4 RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000 R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0 Call Trace: <TASK> __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline] mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline] __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615 mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767 process_one_work+0x1e0/0x560 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x3c7/0x640 kernel/workqueue.c:3416 kthread+0x121/0x170 kernel/kthread.c:388 ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 </TASK> When fallback to TCP happens early on a client socket, snd_nxt is not yet initialized and any incoming ack will copy such value into snd_una. If the mptcp worker (dumbly) tries mptcp-level re-injection after such ack, that would unconditionally trigger a send buffer cleanup using 'bad' snd_una values. We could easily disable re-injection for fallback sockets, but such dumb behavior already helped catching a few subtle issues and a very low to zero impact in practice. Instead address the issue always initializing snd_nxt (and write_seq, for consistency) at connect time. Fixes: 8fd738049ac3 ("mptcp: fallback in case of simultaneous connect") Cc: stable(a)vger.kernel.org Reported-by: Christoph Paasch <cpaasch(a)apple.com> Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/485 Tested-by: Christoph Paasch <cpaasch(a)apple.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Reviewed-by: Mat Martineau <martineau(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://lore.kernel.org/r/20240429-upstream-net-20240429-mptcp-snd_nxt-init… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> [ snd_nxt field is not available in v5.10.y: before, only write_seq was used, see commit eaa2ffabfc35 ("mptcp: introduce MPTCP snd_nxt") for more details about that. ] Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- net/mptcp/protocol.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 6ee641a3838d..613442057a04 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2648,6 +2648,8 @@ static int mptcp_stream_connect(struct socket *sock, struct sockaddr *uaddr, if (subflow->request_mptcp && mptcp_token_new_connect(ssock->sk)) mptcp_subflow_early_fallback(msk, subflow); + WRITE_ONCE(msk->write_seq, subflow->idsn); + do_connect: err = ssock->ops->connect(ssock, uaddr, addr_len, flags); sock->state = ssock->state; -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] batman-adv: Avoid infinite loop trying to resize local TT
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Sven Eckelmann <sven(a)narfation.org> stable inclusion from stable-v5.10.216 commit 70a8be9dc2fb65d67f8c1e0c88c587e08e2e575d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRL7 CVE: CVE-2024-35982 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit b1f532a3b1e6d2e5559c7ace49322922637a28aa upstream. If the MTU of one of an attached interface becomes too small to transmit the local translation table then it must be resized to fit inside all fragments (when enabled) or a single packet. But if the MTU becomes too low to transmit even the header + the VLAN specific part then the resizing of the local TT will never succeed. This can for example happen when the usable space is 110 bytes and 11 VLANs are on top of batman-adv. In this case, at least 116 byte would be needed. There will just be an endless spam of batman_adv: batadv0: Forced to purge local tt entries to fit new maximum fragment MTU (110) in the log but the function will never finish. Problem here is that the timeout will be halved all the time and will then stagnate at 0 and therefore never be able to reduce the table even more. There are other scenarios possible with a similar result. The number of BATADV_TT_CLIENT_NOPURGE entries in the local TT can for example be too high to fit inside a packet. Such a scenario can therefore happen also with only a single VLAN + 7 non-purgable addresses - requiring at least 120 bytes. While this should be handled proactively when: * interface with too low MTU is added * VLAN is added * non-purgeable local mac is added * MTU of an attached interface is reduced * fragmentation setting gets disabled (which most likely requires dropping attached interfaces) not all of these scenarios can be prevented because batman-adv is only consuming events without the the possibility to prevent these actions (non-purgable MAC address added, MTU of an attached interface is reduced). It is therefore necessary to also make sure that the code is able to handle also the situations when there were already incompatible system configuration are present. Cc: stable(a)vger.kernel.org Fixes: a19d3d85e1b8 ("batman-adv: limit local translation table max size") Reported-by: syzbot+a6a4b5bb3da165594cff(a)syzkaller.appspotmail.com Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- net/batman-adv/translation-table.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 5f990a206107..27ac87afdba1 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -4189,7 +4189,7 @@ void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface) spin_lock_bh(&bat_priv->tt.commit_lock); - while (true) { + while (timeout) { table_size = batadv_tt_local_table_transmit_size(bat_priv); if (packet_size_max >= table_size) break; -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS] tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets
by Zhengchao Shao 06 Jun '24

06 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v4.19.314 commit 34e41a031fd7523bf1cd00a2adca2370aebea270 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4IQ CVE: CVE-2024-36905 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 94062790aedb505bdda209b10bea47b294d6394f ] TCP_SYN_RECV state is really special, it is only used by cross-syn connections, mostly used by fuzzers. In the following crash [1], syzbot managed to trigger a divide by zero in tcp_rcv_space_adjust() A socket makes the following state transitions, without ever calling tcp_init_transfer(), meaning tcp_init_buffer_space() is also not called. TCP_CLOSE connect() TCP_SYN_SENT TCP_SYN_RECV shutdown() -> tcp_shutdown(sk, SEND_SHUTDOWN) TCP_FIN_WAIT1 To fix this issue, change tcp_shutdown() to not perform a TCP_SYN_RECV -> TCP_FIN_WAIT1 transition, which makes no sense anyway. When tcp_rcv_state_process() later changes socket state from TCP_SYN_RECV to TCP_ESTABLISH, then look at sk->sk_shutdown to finally enter TCP_FIN_WAIT1 state, and send a FIN packet from a sane socket state. This means tcp_send_fin() can now be called from BH context, and must use GFP_ATOMIC allocations. [1] divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 5084 Comm: syz-executor358 Not tainted 6.9.0-rc6-syzkaller-00022-g98369dccd2f8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:tcp_rcv_space_adjust+0x2df/0x890 net/ipv4/tcp_input.c:767 Code: e3 04 4c 01 eb 48 8b 44 24 38 0f b6 04 10 84 c0 49 89 d5 0f 85 a5 03 00 00 41 8b 8e c8 09 00 00 89 e8 29 c8 48 0f af c3 31 d2 <48> f7 f1 48 8d 1c 43 49 8d 96 76 08 00 00 48 89 d0 48 c1 e8 03 48 RSP: 0018:ffffc900031ef3f0 EFLAGS: 00010246 RAX: 0c677a10441f8f42 RBX: 000000004fb95e7e RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000027d4b11f R08: ffffffff89e535a4 R09: 1ffffffff25e6ab7 R10: dffffc0000000000 R11: ffffffff8135e920 R12: ffff88802a9f8d30 R13: dffffc0000000000 R14: ffff88802a9f8d00 R15: 1ffff1100553f2da FS: 00005555775c0380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1155bf2304 CR3: 000000002b9f2000 CR4: 0000000000350ef0 Call Trace: <TASK> tcp_recvmsg_locked+0x106d/0x25a0 net/ipv4/tcp.c:2513 tcp_recvmsg+0x25d/0x920 net/ipv4/tcp.c:2578 inet6_recvmsg+0x16a/0x730 net/ipv6/af_inet6.c:680 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x109/0x280 net/socket.c:1068 ____sys_recvmsg+0x1db/0x470 net/socket.c:2803 ___sys_recvmsg net/socket.c:2845 [inline] do_recvmmsg+0x474/0xae0 net/socket.c:2939 __sys_recvmmsg net/socket.c:3018 [inline] __do_sys_recvmmsg net/socket.c:3041 [inline] __se_sys_recvmmsg net/socket.c:3034 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faeb6363db9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcc1997168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeb6363db9 RDX: 0000000000000001 RSI: 0000000020000bc0 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000001c R10: 0000000000000122 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Neal Cardwell <ncardwell(a)google.com> Link: https://lore.kernel.org/r/20240501125448.896529-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: net/ipv4/tcp_output.c [The conflict occurs because the commit d1edc0855597("tcp: remove redundant check on tskb") is not merged] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/tcp.c | 4 ++-- net/ipv4/tcp_input.c | 2 ++ net/ipv4/tcp_output.c | 4 +++- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 4416d1c24dbb..35ac9153fdaf 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2326,7 +2326,7 @@ void tcp_shutdown(struct sock *sk, int how) /* If we've already sent a FIN, or it's a closed state, skip this. */ if ((1 << sk->sk_state) & (TCPF_ESTABLISHED | TCPF_SYN_SENT | - TCPF_SYN_RECV | TCPF_CLOSE_WAIT)) { + TCPF_CLOSE_WAIT)) { /* Clear out any half completed packets. FIN if needed. */ if (tcp_close_state(sk)) tcp_send_fin(sk); @@ -2411,7 +2411,7 @@ void __tcp_close(struct sock *sk, long timeout) * machine. State transitions: * * TCP_ESTABLISHED -> TCP_FIN_WAIT1 - * TCP_SYN_RECV -> TCP_FIN_WAIT1 (forget it, it's impossible) + * TCP_SYN_RECV -> TCP_FIN_WAIT1 (it is difficult) * TCP_CLOSE_WAIT -> TCP_LAST_ACK * * are legal only when FIN has been sent (i.e. in window), diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index b3278fa1fcb8..4e32f6f1808c 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -6234,6 +6234,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb) tcp_initialize_rcv_mss(sk); tcp_fast_path_on(tp); + if (sk->sk_shutdown & SEND_SHUTDOWN) + tcp_shutdown(sk, SEND_SHUTDOWN); break; case TCP_FIN_WAIT1: { diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index d9c47869e43a..cb316218cb49 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -3200,7 +3200,9 @@ void tcp_send_fin(struct sock *sk) return; } } else { - skb = alloc_skb_fclone(MAX_TCP_HEADER, sk->sk_allocation); + skb = alloc_skb_fclone(MAX_TCP_HEADER, + sk_gfp_mask(sk, GFP_ATOMIC | + __GFP_NOWARN)); if (unlikely(!skb)) { if (tskb) goto coalesce; -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets
by Zhengchao Shao 06 Jun '24

06 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v5.10.217 commit 413c33b9f3bc36fdf719690a78824db9f88a9485 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4IQ CVE: CVE-2024-36905 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 94062790aedb505bdda209b10bea47b294d6394f ] TCP_SYN_RECV state is really special, it is only used by cross-syn connections, mostly used by fuzzers. In the following crash [1], syzbot managed to trigger a divide by zero in tcp_rcv_space_adjust() A socket makes the following state transitions, without ever calling tcp_init_transfer(), meaning tcp_init_buffer_space() is also not called. TCP_CLOSE connect() TCP_SYN_SENT TCP_SYN_RECV shutdown() -> tcp_shutdown(sk, SEND_SHUTDOWN) TCP_FIN_WAIT1 To fix this issue, change tcp_shutdown() to not perform a TCP_SYN_RECV -> TCP_FIN_WAIT1 transition, which makes no sense anyway. When tcp_rcv_state_process() later changes socket state from TCP_SYN_RECV to TCP_ESTABLISH, then look at sk->sk_shutdown to finally enter TCP_FIN_WAIT1 state, and send a FIN packet from a sane socket state. This means tcp_send_fin() can now be called from BH context, and must use GFP_ATOMIC allocations. [1] divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 5084 Comm: syz-executor358 Not tainted 6.9.0-rc6-syzkaller-00022-g98369dccd2f8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:tcp_rcv_space_adjust+0x2df/0x890 net/ipv4/tcp_input.c:767 Code: e3 04 4c 01 eb 48 8b 44 24 38 0f b6 04 10 84 c0 49 89 d5 0f 85 a5 03 00 00 41 8b 8e c8 09 00 00 89 e8 29 c8 48 0f af c3 31 d2 <48> f7 f1 48 8d 1c 43 49 8d 96 76 08 00 00 48 89 d0 48 c1 e8 03 48 RSP: 0018:ffffc900031ef3f0 EFLAGS: 00010246 RAX: 0c677a10441f8f42 RBX: 000000004fb95e7e RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000027d4b11f R08: ffffffff89e535a4 R09: 1ffffffff25e6ab7 R10: dffffc0000000000 R11: ffffffff8135e920 R12: ffff88802a9f8d30 R13: dffffc0000000000 R14: ffff88802a9f8d00 R15: 1ffff1100553f2da FS: 00005555775c0380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1155bf2304 CR3: 000000002b9f2000 CR4: 0000000000350ef0 Call Trace: <TASK> tcp_recvmsg_locked+0x106d/0x25a0 net/ipv4/tcp.c:2513 tcp_recvmsg+0x25d/0x920 net/ipv4/tcp.c:2578 inet6_recvmsg+0x16a/0x730 net/ipv6/af_inet6.c:680 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x109/0x280 net/socket.c:1068 ____sys_recvmsg+0x1db/0x470 net/socket.c:2803 ___sys_recvmsg net/socket.c:2845 [inline] do_recvmmsg+0x474/0xae0 net/socket.c:2939 __sys_recvmmsg net/socket.c:3018 [inline] __do_sys_recvmmsg net/socket.c:3041 [inline] __se_sys_recvmmsg net/socket.c:3034 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faeb6363db9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcc1997168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeb6363db9 RDX: 0000000000000001 RSI: 0000000020000bc0 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000001c R10: 0000000000000122 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Neal Cardwell <ncardwell(a)google.com> Link: https://lore.kernel.org/r/20240501125448.896529-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/tcp.c | 4 ++-- net/ipv4/tcp_input.c | 2 ++ net/ipv4/tcp_output.c | 4 +++- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index fbab99e243ea..25c8166bb196 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2493,7 +2493,7 @@ void tcp_shutdown(struct sock *sk, int how) /* If we've already sent a FIN, or it's a closed state, skip this. */ if ((1 << sk->sk_state) & (TCPF_ESTABLISHED | TCPF_SYN_SENT | - TCPF_SYN_RECV | TCPF_CLOSE_WAIT)) { + TCPF_CLOSE_WAIT)) { /* Clear out any half completed packets. FIN if needed. */ if (tcp_close_state(sk)) tcp_send_fin(sk); @@ -2605,7 +2605,7 @@ void tcp_close(struct sock *sk, long timeout) * machine. State transitions: * * TCP_ESTABLISHED -> TCP_FIN_WAIT1 - * TCP_SYN_RECV -> TCP_FIN_WAIT1 (forget it, it's impossible) + * TCP_SYN_RECV -> TCP_FIN_WAIT1 (it is difficult) * TCP_CLOSE_WAIT -> TCP_LAST_ACK * * are legal only when FIN has been sent (i.e. in window), diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index f95a18b73677..9542f42b5d0c 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -6514,6 +6514,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb) tcp_initialize_rcv_mss(sk); tcp_fast_path_on(tp); + if (sk->sk_shutdown & SEND_SHUTDOWN) + tcp_shutdown(sk, SEND_SHUTDOWN); break; case TCP_FIN_WAIT1: { diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 0996c71811d5..f32351a8f031 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -3474,7 +3474,9 @@ void tcp_send_fin(struct sock *sk) return; } } else { - skb = alloc_skb_fclone(MAX_TCP_HEADER, sk->sk_allocation); + skb = alloc_skb_fclone(MAX_TCP_HEADER, + sk_gfp_mask(sk, GFP_ATOMIC | + __GFP_NOWARN)); if (unlikely(!skb)) return; -- 2.34.1

2 1

[PATCH OLK-5.10] tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets
by Zhengchao Shao 06 Jun '24

06 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v5.10.217 commit 413c33b9f3bc36fdf719690a78824db9f88a9485 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4IQ CVE: CVE-2024-36905 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 94062790aedb505bdda209b10bea47b294d6394f ] TCP_SYN_RECV state is really special, it is only used by cross-syn connections, mostly used by fuzzers. In the following crash [1], syzbot managed to trigger a divide by zero in tcp_rcv_space_adjust() A socket makes the following state transitions, without ever calling tcp_init_transfer(), meaning tcp_init_buffer_space() is also not called. TCP_CLOSE connect() TCP_SYN_SENT TCP_SYN_RECV shutdown() -> tcp_shutdown(sk, SEND_SHUTDOWN) TCP_FIN_WAIT1 To fix this issue, change tcp_shutdown() to not perform a TCP_SYN_RECV -> TCP_FIN_WAIT1 transition, which makes no sense anyway. When tcp_rcv_state_process() later changes socket state from TCP_SYN_RECV to TCP_ESTABLISH, then look at sk->sk_shutdown to finally enter TCP_FIN_WAIT1 state, and send a FIN packet from a sane socket state. This means tcp_send_fin() can now be called from BH context, and must use GFP_ATOMIC allocations. [1] divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 5084 Comm: syz-executor358 Not tainted 6.9.0-rc6-syzkaller-00022-g98369dccd2f8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:tcp_rcv_space_adjust+0x2df/0x890 net/ipv4/tcp_input.c:767 Code: e3 04 4c 01 eb 48 8b 44 24 38 0f b6 04 10 84 c0 49 89 d5 0f 85 a5 03 00 00 41 8b 8e c8 09 00 00 89 e8 29 c8 48 0f af c3 31 d2 <48> f7 f1 48 8d 1c 43 49 8d 96 76 08 00 00 48 89 d0 48 c1 e8 03 48 RSP: 0018:ffffc900031ef3f0 EFLAGS: 00010246 RAX: 0c677a10441f8f42 RBX: 000000004fb95e7e RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000027d4b11f R08: ffffffff89e535a4 R09: 1ffffffff25e6ab7 R10: dffffc0000000000 R11: ffffffff8135e920 R12: ffff88802a9f8d30 R13: dffffc0000000000 R14: ffff88802a9f8d00 R15: 1ffff1100553f2da FS: 00005555775c0380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1155bf2304 CR3: 000000002b9f2000 CR4: 0000000000350ef0 Call Trace: <TASK> tcp_recvmsg_locked+0x106d/0x25a0 net/ipv4/tcp.c:2513 tcp_recvmsg+0x25d/0x920 net/ipv4/tcp.c:2578 inet6_recvmsg+0x16a/0x730 net/ipv6/af_inet6.c:680 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x109/0x280 net/socket.c:1068 ____sys_recvmsg+0x1db/0x470 net/socket.c:2803 ___sys_recvmsg net/socket.c:2845 [inline] do_recvmmsg+0x474/0xae0 net/socket.c:2939 __sys_recvmmsg net/socket.c:3018 [inline] __do_sys_recvmmsg net/socket.c:3041 [inline] __se_sys_recvmmsg net/socket.c:3034 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faeb6363db9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcc1997168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeb6363db9 RDX: 0000000000000001 RSI: 0000000020000bc0 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000001c R10: 0000000000000122 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Neal Cardwell <ncardwell(a)google.com> Link: https://lore.kernel.org/r/20240501125448.896529-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/tcp.c | 4 ++-- net/ipv4/tcp_input.c | 2 ++ net/ipv4/tcp_output.c | 4 +++- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 0f13dc167730..a16beb3433b8 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2527,7 +2527,7 @@ void tcp_shutdown(struct sock *sk, int how) /* If we've already sent a FIN, or it's a closed state, skip this. */ if ((1 << sk->sk_state) & (TCPF_ESTABLISHED | TCPF_SYN_SENT | - TCPF_SYN_RECV | TCPF_CLOSE_WAIT)) { + TCPF_CLOSE_WAIT)) { /* Clear out any half completed packets. FIN if needed. */ if (tcp_close_state(sk)) tcp_send_fin(sk); @@ -2638,7 +2638,7 @@ void __tcp_close(struct sock *sk, long timeout) * machine. State transitions: * * TCP_ESTABLISHED -> TCP_FIN_WAIT1 - * TCP_SYN_RECV -> TCP_FIN_WAIT1 (forget it, it's impossible) + * TCP_SYN_RECV -> TCP_FIN_WAIT1 (it is difficult) * TCP_CLOSE_WAIT -> TCP_LAST_ACK * * are legal only when FIN has been sent (i.e. in window), diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 2645dd64c382..0c783f8c0b36 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -6541,6 +6541,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb) tcp_initialize_rcv_mss(sk); tcp_fast_path_on(tp); + if (sk->sk_shutdown & SEND_SHUTDOWN) + tcp_shutdown(sk, SEND_SHUTDOWN); break; case TCP_FIN_WAIT1: { diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 762f2009d61d..a1302d5cb98f 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -3495,7 +3495,9 @@ void tcp_send_fin(struct sock *sk) return; } } else { - skb = alloc_skb_fclone(MAX_TCP_HEADER, sk->sk_allocation); + skb = alloc_skb_fclone(MAX_TCP_HEADER, + sk_gfp_mask(sk, GFP_ATOMIC | + __GFP_NOWARN)); if (unlikely(!skb)) return; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
by Zhengchao Shao 06 Jun '24

06 Jun '24

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v4.19.314 commit 84546cc1aeeb4df3e444b18a4293c9823f974be9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4LA CVE: CVE-2024-36904 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f2db7230f73a80dbb179deab78f88a7947f0ab7e ] Anderson Nascimento reported a use-after-free splat in tcp_twsk_unique() with nice analysis. Since commit ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance"), inet_twsk_hashdance() sets TIME-WAIT socket's sk_refcnt after putting it into ehash and releasing the bucket lock. Thus, there is a small race window where other threads could try to reuse the port during connect() and call sock_hold() in tcp_twsk_unique() for the TIME-WAIT socket with zero refcnt. If that happens, the refcnt taken by tcp_twsk_unique() is overwritten and sock_put() will cause underflow, triggering a real use-after-free somewhere else. To avoid the use-after-free, we need to use refcount_inc_not_zero() in tcp_twsk_unique() and give up on reusing the port if it returns false. [0]: refcount_t: addition on 0; use-after-free. WARNING: CPU: 0 PID: 1039313 at lib/refcount.c:25 refcount_warn_saturate+0xe5/0x110 CPU: 0 PID: 1039313 Comm: trigger Not tainted 6.8.6-200.fc39.x86_64 #1 Hardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.21805430.B64.2305221830 05/22/2023 RIP: 0010:refcount_warn_saturate+0xe5/0x110 Code: 42 8e ff 0f 0b c3 cc cc cc cc 80 3d aa 13 ea 01 00 0f 85 5e ff ff ff 48 c7 c7 f8 8e b7 82 c6 05 96 13 ea 01 01 e8 7b 42 8e ff <0f> 0b c3 cc cc cc cc 48 c7 c7 50 8f b7 82 c6 05 7a 13 ea 01 01 e8 RSP: 0018:ffffc90006b43b60 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888009bb3ef0 RCX: 0000000000000027 RDX: ffff88807be218c8 RSI: 0000000000000001 RDI: ffff88807be218c0 RBP: 0000000000069d70 R08: 0000000000000000 R09: ffffc90006b439f0 R10: ffffc90006b439e8 R11: 0000000000000003 R12: ffff8880029ede84 R13: 0000000000004e20 R14: ffffffff84356dc0 R15: ffff888009bb3ef0 FS: 00007f62c10926c0(0000) GS:ffff88807be00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020ccb000 CR3: 000000004628c005 CR4: 0000000000f70ef0 PKRU: 55555554 Call Trace: <TASK> ? refcount_warn_saturate+0xe5/0x110 ? __warn+0x81/0x130 ? refcount_warn_saturate+0xe5/0x110 ? report_bug+0x171/0x1a0 ? refcount_warn_saturate+0xe5/0x110 ? handle_bug+0x3c/0x80 ? exc_invalid_op+0x17/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? refcount_warn_saturate+0xe5/0x110 tcp_twsk_unique+0x186/0x190 __inet_check_established+0x176/0x2d0 __inet_hash_connect+0x74/0x7d0 ? __pfx___inet_check_established+0x10/0x10 tcp_v4_connect+0x278/0x530 __inet_stream_connect+0x10f/0x3d0 inet_stream_connect+0x3a/0x60 __sys_connect+0xa8/0xd0 __x64_sys_connect+0x18/0x20 do_syscall_64+0x83/0x170 entry_SYSCALL_64_after_hwframe+0x78/0x80 RIP: 0033:0x7f62c11a885d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a3 45 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007f62c1091e58 EFLAGS: 00000296 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000020ccb004 RCX: 00007f62c11a885d RDX: 0000000000000010 RSI: 0000000020ccb000 RDI: 0000000000000003 RBP: 00007f62c1091e90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 00007f62c10926c0 R13: ffffffffffffff88 R14: 0000000000000000 R15: 00007ffe237885b0 </TASK> Fixes: ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance") Reported-by: Anderson Nascimento <anderson(a)allelesecurity.com> Closes: https://lore.kernel.org/netdev/37a477a6-d39e-486b-9577-3463f655a6b7@alleles… Suggested-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Link: https://lore.kernel.org/r/20240501213145.62261-1-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/tcp_ipv4.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index dc59bd34eb42..de947bbaeda2 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -157,6 +157,12 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) if (tcptw->tw_ts_recent_stamp && (!twp || (reuse && time_after32(ktime_get_seconds(), tcptw->tw_ts_recent_stamp)))) { + /* inet_twsk_hashdance() sets sk_refcnt after putting twsk + * and releasing the bucket lock. + */ + if (unlikely(!refcount_inc_not_zero(&sktw->sk_refcnt))) + return 0; + /* In case of repair and re-using TIME-WAIT sockets we still * want to be sure that it is safe as above but honor the * sequence numbers and time stamps set as part of the repair @@ -177,7 +183,7 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) tp->rx_opt.ts_recent = tcptw->tw_ts_recent; tp->rx_opt.ts_recent_stamp = tcptw->tw_ts_recent_stamp; } - sock_hold(sktw); + return 1; } -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: openvswitch: fix possible memory leak in ovs_meter_cmd_set()
by Li Zetao 06 Jun '24

06 Jun '24

From: Hangyu Hua <hbh25y(a)gmail.com> stable inclusion from stable-v5.10.169 commit c0f65ee0a3329eb4b94beaef0268633696e2d0c6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7V9QX Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… ---------------------------------------------------- commit 2fa28f5c6fcbfc794340684f36d2581b4f2d20b5 upstream. old_meter needs to be free after it is detached regardless of whether the new meter is successfully attached. Fixes: c7c4c44c9a95 ("net: openvswitch: expand the meters supported number") Signed-off-by: Hangyu Hua <hbh25y(a)gmail.com> Acked-by: Eelco Chaudron <echaudro(a)redhat.com> Reviewed-by: Simon Horman <simon.horman(a)corigine.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: zhaoxiaoqiang11 <zhaoxiaoqiang11(a)jd.com> Signed-off-by: Li Zetao <lizetao1(a)huawei.com> --- net/openvswitch/meter.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c index e594b4d6b58a9..0cf3dda5319fe 100644 --- a/net/openvswitch/meter.c +++ b/net/openvswitch/meter.c @@ -450,7 +450,7 @@ static int ovs_meter_cmd_set(struct sk_buff *skb, struct genl_info *info) err = attach_meter(meter_tbl, meter); if (err) - goto exit_unlock; + goto exit_free_old_meter; ovs_unlock(); @@ -473,6 +473,8 @@ static int ovs_meter_cmd_set(struct sk_buff *skb, struct genl_info *info) genlmsg_end(reply, ovs_reply_header); return genlmsg_reply(reply, info); +exit_free_old_meter: + ovs_meter_free(old_meter); exit_unlock: ovs_unlock(); nlmsg_free(reply); -- 2.34.1

2 1

[PATCH OLK-5.10] tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
by Zhengchao Shao 06 Jun '24

06 Jun '24

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v5.10.217 commit 1d9cf07810c30ef7948879567d10fd1f01121d34 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4LA CVE: CVE-2024-36904 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f2db7230f73a80dbb179deab78f88a7947f0ab7e ] Anderson Nascimento reported a use-after-free splat in tcp_twsk_unique() with nice analysis. Since commit ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance"), inet_twsk_hashdance() sets TIME-WAIT socket's sk_refcnt after putting it into ehash and releasing the bucket lock. Thus, there is a small race window where other threads could try to reuse the port during connect() and call sock_hold() in tcp_twsk_unique() for the TIME-WAIT socket with zero refcnt. If that happens, the refcnt taken by tcp_twsk_unique() is overwritten and sock_put() will cause underflow, triggering a real use-after-free somewhere else. To avoid the use-after-free, we need to use refcount_inc_not_zero() in tcp_twsk_unique() and give up on reusing the port if it returns false. [0]: refcount_t: addition on 0; use-after-free. WARNING: CPU: 0 PID: 1039313 at lib/refcount.c:25 refcount_warn_saturate+0xe5/0x110 CPU: 0 PID: 1039313 Comm: trigger Not tainted 6.8.6-200.fc39.x86_64 #1 Hardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.21805430.B64.2305221830 05/22/2023 RIP: 0010:refcount_warn_saturate+0xe5/0x110 Code: 42 8e ff 0f 0b c3 cc cc cc cc 80 3d aa 13 ea 01 00 0f 85 5e ff ff ff 48 c7 c7 f8 8e b7 82 c6 05 96 13 ea 01 01 e8 7b 42 8e ff <0f> 0b c3 cc cc cc cc 48 c7 c7 50 8f b7 82 c6 05 7a 13 ea 01 01 e8 RSP: 0018:ffffc90006b43b60 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888009bb3ef0 RCX: 0000000000000027 RDX: ffff88807be218c8 RSI: 0000000000000001 RDI: ffff88807be218c0 RBP: 0000000000069d70 R08: 0000000000000000 R09: ffffc90006b439f0 R10: ffffc90006b439e8 R11: 0000000000000003 R12: ffff8880029ede84 R13: 0000000000004e20 R14: ffffffff84356dc0 R15: ffff888009bb3ef0 FS: 00007f62c10926c0(0000) GS:ffff88807be00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020ccb000 CR3: 000000004628c005 CR4: 0000000000f70ef0 PKRU: 55555554 Call Trace: <TASK> ? refcount_warn_saturate+0xe5/0x110 ? __warn+0x81/0x130 ? refcount_warn_saturate+0xe5/0x110 ? report_bug+0x171/0x1a0 ? refcount_warn_saturate+0xe5/0x110 ? handle_bug+0x3c/0x80 ? exc_invalid_op+0x17/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? refcount_warn_saturate+0xe5/0x110 tcp_twsk_unique+0x186/0x190 __inet_check_established+0x176/0x2d0 __inet_hash_connect+0x74/0x7d0 ? __pfx___inet_check_established+0x10/0x10 tcp_v4_connect+0x278/0x530 __inet_stream_connect+0x10f/0x3d0 inet_stream_connect+0x3a/0x60 __sys_connect+0xa8/0xd0 __x64_sys_connect+0x18/0x20 do_syscall_64+0x83/0x170 entry_SYSCALL_64_after_hwframe+0x78/0x80 RIP: 0033:0x7f62c11a885d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a3 45 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007f62c1091e58 EFLAGS: 00000296 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000020ccb004 RCX: 00007f62c11a885d RDX: 0000000000000010 RSI: 0000000020ccb000 RDI: 0000000000000003 RBP: 00007f62c1091e90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 00007f62c10926c0 R13: ffffffffffffff88 R14: 0000000000000000 R15: 00007ffe237885b0 </TASK> Fixes: ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance") Reported-by: Anderson Nascimento <anderson(a)allelesecurity.com> Closes: https://lore.kernel.org/netdev/37a477a6-d39e-486b-9577-3463f655a6b7@alleles… Suggested-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Link: https://lore.kernel.org/r/20240501213145.62261-1-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/tcp_ipv4.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 060cc8f39c0c..04d5c2201679 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -151,6 +151,12 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) if (tcptw->tw_ts_recent_stamp && (!twp || (reuse && time_after32(ktime_get_seconds(), tcptw->tw_ts_recent_stamp)))) { + /* inet_twsk_hashdance() sets sk_refcnt after putting twsk + * and releasing the bucket lock. + */ + if (unlikely(!refcount_inc_not_zero(&sktw->sk_refcnt))) + return 0; + /* In case of repair and re-using TIME-WAIT sockets we still * want to be sure that it is safe as above but honor the * sequence numbers and time stamps set as part of the repair @@ -171,7 +177,7 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) tp->rx_opt.ts_recent = tcptw->tw_ts_recent; tp->rx_opt.ts_recent_stamp = tcptw->tw_ts_recent_stamp; } - sock_hold(sktw); + return 1; } -- 2.34.1

2 1

[PATCH OLK-5.10 V6 0/5] Fix CVE-2023-52732
by Zizhi Wo 06 Jun '24

06 Jun '24

V6: Fix missing adaptations in ceph_do_readpage() and ceph_readpages(). V5: Fix wrong adaptations in ceph_readpage_to_fscache() and ceph_readpage_ceph_readpage_from_fscache(). V4: Fix wrong adaptation in ceph_mdsc_sync(). V3: Fix wrong adaptation in remove_session_caps_cb(). V2: Modify conflicting files in the commit message. V1: Fix main error. Jeff Layton (4): ceph: drop private list from remove_session_caps_cb ceph: fix auth cap handling logic in remove_session_caps_cb ceph: refactor remove_session_caps_cb ceph: shut down access to inode when async create fails Xiubo Li (1): ceph: blocklist the kclient when receiving corrupted snap trace fs/ceph/addr.c | 30 ++++++-- fs/ceph/caps.c | 138 +++++++++++++++++++++++++++++++-- fs/ceph/export.c | 12 ++- fs/ceph/file.c | 13 +++- fs/ceph/inode.c | 33 +++++++- fs/ceph/locks.c | 7 ++ fs/ceph/mds_client.c | 144 ++++++++--------------------------- fs/ceph/snap.c | 36 ++++++++- fs/ceph/super.h | 12 +++ include/linux/ceph/libceph.h | 1 + 10 files changed, 296 insertions(+), 130 deletions(-) -- 2.39.2

2 6

[PATCH openEuler-22.03-LTS-SP1] tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
by Zhengchao Shao 06 Jun '24

06 Jun '24

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v5.10.217 commit 1d9cf07810c30ef7948879567d10fd1f01121d34 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4LA CVE: CVE-2024-36904 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f2db7230f73a80dbb179deab78f88a7947f0ab7e ] Anderson Nascimento reported a use-after-free splat in tcp_twsk_unique() with nice analysis. Since commit ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance"), inet_twsk_hashdance() sets TIME-WAIT socket's sk_refcnt after putting it into ehash and releasing the bucket lock. Thus, there is a small race window where other threads could try to reuse the port during connect() and call sock_hold() in tcp_twsk_unique() for the TIME-WAIT socket with zero refcnt. If that happens, the refcnt taken by tcp_twsk_unique() is overwritten and sock_put() will cause underflow, triggering a real use-after-free somewhere else. To avoid the use-after-free, we need to use refcount_inc_not_zero() in tcp_twsk_unique() and give up on reusing the port if it returns false. [0]: refcount_t: addition on 0; use-after-free. WARNING: CPU: 0 PID: 1039313 at lib/refcount.c:25 refcount_warn_saturate+0xe5/0x110 CPU: 0 PID: 1039313 Comm: trigger Not tainted 6.8.6-200.fc39.x86_64 #1 Hardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.21805430.B64.2305221830 05/22/2023 RIP: 0010:refcount_warn_saturate+0xe5/0x110 Code: 42 8e ff 0f 0b c3 cc cc cc cc 80 3d aa 13 ea 01 00 0f 85 5e ff ff ff 48 c7 c7 f8 8e b7 82 c6 05 96 13 ea 01 01 e8 7b 42 8e ff <0f> 0b c3 cc cc cc cc 48 c7 c7 50 8f b7 82 c6 05 7a 13 ea 01 01 e8 RSP: 0018:ffffc90006b43b60 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888009bb3ef0 RCX: 0000000000000027 RDX: ffff88807be218c8 RSI: 0000000000000001 RDI: ffff88807be218c0 RBP: 0000000000069d70 R08: 0000000000000000 R09: ffffc90006b439f0 R10: ffffc90006b439e8 R11: 0000000000000003 R12: ffff8880029ede84 R13: 0000000000004e20 R14: ffffffff84356dc0 R15: ffff888009bb3ef0 FS: 00007f62c10926c0(0000) GS:ffff88807be00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020ccb000 CR3: 000000004628c005 CR4: 0000000000f70ef0 PKRU: 55555554 Call Trace: <TASK> ? refcount_warn_saturate+0xe5/0x110 ? __warn+0x81/0x130 ? refcount_warn_saturate+0xe5/0x110 ? report_bug+0x171/0x1a0 ? refcount_warn_saturate+0xe5/0x110 ? handle_bug+0x3c/0x80 ? exc_invalid_op+0x17/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? refcount_warn_saturate+0xe5/0x110 tcp_twsk_unique+0x186/0x190 __inet_check_established+0x176/0x2d0 __inet_hash_connect+0x74/0x7d0 ? __pfx___inet_check_established+0x10/0x10 tcp_v4_connect+0x278/0x530 __inet_stream_connect+0x10f/0x3d0 inet_stream_connect+0x3a/0x60 __sys_connect+0xa8/0xd0 __x64_sys_connect+0x18/0x20 do_syscall_64+0x83/0x170 entry_SYSCALL_64_after_hwframe+0x78/0x80 RIP: 0033:0x7f62c11a885d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a3 45 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007f62c1091e58 EFLAGS: 00000296 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000020ccb004 RCX: 00007f62c11a885d RDX: 0000000000000010 RSI: 0000000020ccb000 RDI: 0000000000000003 RBP: 00007f62c1091e90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 00007f62c10926c0 R13: ffffffffffffff88 R14: 0000000000000000 R15: 00007ffe237885b0 </TASK> Fixes: ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance") Reported-by: Anderson Nascimento <anderson(a)allelesecurity.com> Closes: https://lore.kernel.org/netdev/37a477a6-d39e-486b-9577-3463f655a6b7@alleles… Suggested-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Link: https://lore.kernel.org/r/20240501213145.62261-1-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/tcp_ipv4.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index f3747aa5f3ef..11c3db9ae5ca 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -151,6 +151,12 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) if (tcptw->tw_ts_recent_stamp && (!twp || (reuse && time_after32(ktime_get_seconds(), tcptw->tw_ts_recent_stamp)))) { + /* inet_twsk_hashdance() sets sk_refcnt after putting twsk + * and releasing the bucket lock. + */ + if (unlikely(!refcount_inc_not_zero(&sktw->sk_refcnt))) + return 0; + /* In case of repair and re-using TIME-WAIT sockets we still * want to be sure that it is safe as above but honor the * sequence numbers and time stamps set as part of the repair @@ -171,7 +177,7 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) tp->rx_opt.ts_recent = tcptw->tw_ts_recent; tp->rx_opt.ts_recent_stamp = tcptw->tw_ts_recent_stamp; } - sock_hold(sktw); + return 1; } -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1 v2] SUNRPC: Fix RPC client cleaned up the freed pipefs dentries
by Liu Jian 06 Jun '24

06 Jun '24

From: felix <fuzhen5(a)huawei.com> stable inclusion from stable-v5.10.202 commit dedf2a0eb9448ae73b270743e6ea9b108189df46 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RFGY CVE: CVE-2023-52803 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit bfca5fb4e97c46503ddfc582335917b0cc228264 ] RPC client pipefs dentries cleanup is in separated rpc_remove_pipedir() workqueue,which takes care about pipefs superblock locking. In some special scenarios, when kernel frees the pipefs sb of the current client and immediately alloctes a new pipefs sb, rpc_remove_pipedir function would misjudge the existence of pipefs sb which is not the one it used to hold. As a result, the rpc_remove_pipedir would clean the released freed pipefs dentries. To fix this issue, rpc_remove_pipedir should check whether the current pipefs sb is consistent with the original pipefs sb. This error can be catched by KASAN: ========================================================= [ 250.497700] BUG: KASAN: slab-use-after-free in dget_parent+0x195/0x200 [ 250.498315] Read of size 4 at addr ffff88800a2ab804 by task kworker/0:18/106503 [ 250.500549] Workqueue: events rpc_free_client_work [ 250.501001] Call Trace: [ 250.502880] kasan_report+0xb6/0xf0 [ 250.503209] ? dget_parent+0x195/0x200 [ 250.503561] dget_parent+0x195/0x200 [ 250.503897] ? __pfx_rpc_clntdir_depopulate+0x10/0x10 [ 250.504384] rpc_rmdir_depopulate+0x1b/0x90 [ 250.504781] rpc_remove_client_dir+0xf5/0x150 [ 250.505195] rpc_free_client_work+0xe4/0x230 [ 250.505598] process_one_work+0x8ee/0x13b0 ... [ 22.039056] Allocated by task 244: [ 22.039390] kasan_save_stack+0x22/0x50 [ 22.039758] kasan_set_track+0x25/0x30 [ 22.040109] __kasan_slab_alloc+0x59/0x70 [ 22.040487] kmem_cache_alloc_lru+0xf0/0x240 [ 22.040889] __d_alloc+0x31/0x8e0 [ 22.041207] d_alloc+0x44/0x1f0 [ 22.041514] __rpc_lookup_create_exclusive+0x11c/0x140 [ 22.041987] rpc_mkdir_populate.constprop.0+0x5f/0x110 [ 22.042459] rpc_create_client_dir+0x34/0x150 [ 22.042874] rpc_setup_pipedir_sb+0x102/0x1c0 [ 22.043284] rpc_client_register+0x136/0x4e0 [ 22.043689] rpc_new_client+0x911/0x1020 [ 22.044057] rpc_create_xprt+0xcb/0x370 [ 22.044417] rpc_create+0x36b/0x6c0 ... [ 22.049524] Freed by task 0: [ 22.049803] kasan_save_stack+0x22/0x50 [ 22.050165] kasan_set_track+0x25/0x30 [ 22.050520] kasan_save_free_info+0x2b/0x50 [ 22.050921] __kasan_slab_free+0x10e/0x1a0 [ 22.051306] kmem_cache_free+0xa5/0x390 [ 22.051667] rcu_core+0x62c/0x1930 [ 22.051995] __do_softirq+0x165/0x52a [ 22.052347] [ 22.052503] Last potentially related work creation: [ 22.052952] kasan_save_stack+0x22/0x50 [ 22.053313] __kasan_record_aux_stack+0x8e/0xa0 [ 22.053739] __call_rcu_common.constprop.0+0x6b/0x8b0 [ 22.054209] dentry_free+0xb2/0x140 [ 22.054540] __dentry_kill+0x3be/0x540 [ 22.054900] shrink_dentry_list+0x199/0x510 [ 22.055293] shrink_dcache_parent+0x190/0x240 [ 22.055703] do_one_tree+0x11/0x40 [ 22.056028] shrink_dcache_for_umount+0x61/0x140 [ 22.056461] generic_shutdown_super+0x70/0x590 [ 22.056879] kill_anon_super+0x3a/0x60 [ 22.057234] rpc_kill_sb+0x121/0x200 Fixes: 0157d021d23a ("SUNRPC: handle RPC client pipefs dentries by network namespace aware routines") Signed-off-by: felix <fuzhen5(a)huawei.com> Signed-off-by: Trond Myklebust <trond.myklebust(a)hammerspace.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: sanglipeng <sanglipeng1(a)jd.com> Conflicts: include/linux/sunrpc/clnt.h Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- include/linux/sunrpc/clnt.h | 1 + net/sunrpc/clnt.c | 5 ++++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index b7b1abe3e048..39b8a0b85902 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -80,6 +80,7 @@ struct rpc_clnt { struct work_struct cl_work; }; const struct cred *cl_cred; + struct super_block *pipefs_sb; KABI_RESERVE(1) KABI_RESERVE(2) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 6fe8cb84638f..c89e225fb73c 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -110,7 +110,8 @@ static void rpc_clnt_remove_pipedir(struct rpc_clnt *clnt) pipefs_sb = rpc_get_sb_net(net); if (pipefs_sb) { - __rpc_clnt_remove_pipedir(clnt); + if (pipefs_sb == clnt->pipefs_sb) + __rpc_clnt_remove_pipedir(clnt); rpc_put_sb_net(net); } } @@ -150,6 +151,8 @@ rpc_setup_pipedir(struct super_block *pipefs_sb, struct rpc_clnt *clnt) { struct dentry *dentry; + clnt->pipefs_sb = pipefs_sb; + if (clnt->cl_program->pipe_dir_name != NULL) { dentry = rpc_setup_pipedir_sb(pipefs_sb, clnt); if (IS_ERR(dentry)) -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/1] CVE-2024-35887
by Yongqiang Liu 06 Jun '24

06 Jun '24

Duoming Zhou (1): ax25: fix use-after-free bugs caused by ax25_ds_del_timer net/ax25/ax25_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS] net: USB: Fix wrong-direction WARNING in plusb.c
by Zhang Zekun 06 Jun '24

06 Jun '24

From: Alan Stern <stern(a)rowland.harvard.edu> stable inclusion from stable-v4.19.273 commit 6f69307f625904feed189008381fd83bd1a35b63 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4KG CVE: CVE-2023-52742 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------------------------- commit 811d581194f7412eda97acc03d17fc77824b561f upstream. The syzbot fuzzer detected a bug in the plusb network driver: A zero-length control-OUT transfer was treated as a read instead of a write. In modern kernels this error provokes a WARNING: usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0 WARNING: CPU: 0 PID: 4645 at drivers/usb/core/urb.c:411 usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 Modules linked in: CPU: 1 PID: 4645 Comm: dhcpcd Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 ... Call Trace: <TASK> usb_start_wait_urb+0x101/0x4b0 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153 __usbnet_read_cmd+0xb9/0x390 drivers/net/usb/usbnet.c:2010 usbnet_read_cmd+0x96/0xf0 drivers/net/usb/usbnet.c:2068 pl_vendor_req drivers/net/usb/plusb.c:60 [inline] pl_set_QuickLink_features drivers/net/usb/plusb.c:75 [inline] pl_reset+0x2f/0xf0 drivers/net/usb/plusb.c:85 usbnet_open+0xcc/0x5d0 drivers/net/usb/usbnet.c:889 __dev_open+0x297/0x4d0 net/core/dev.c:1417 __dev_change_flags+0x587/0x750 net/core/dev.c:8530 dev_change_flags+0x97/0x170 net/core/dev.c:8602 devinet_ioctl+0x15a2/0x1d70 net/ipv4/devinet.c:1147 inet_ioctl+0x33f/0x380 net/ipv4/af_inet.c:979 sock_do_ioctl+0xcc/0x230 net/socket.c:1169 sock_ioctl+0x1f8/0x680 net/socket.c:1286 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The fix is to call usbnet_write_cmd() instead of usbnet_read_cmd() and remove the USB_DIR_IN flag. Reported-and-tested-by: syzbot+2a0e7abd24f1eb90ce25(a)syzkaller.appspotmail.com Signed-off-by: Alan Stern <stern(a)rowland.harvard.edu> Fixes: 090ffa9d0e90 ("[PATCH] USB: usbnet (9/9) module for pl2301/2302 cables") CC: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/00000000000052099f05f3b3e298@google.com/ Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/net/usb/plusb.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c index 6fe59373cba9..8bab7306e5a6 100644 --- a/drivers/net/usb/plusb.c +++ b/drivers/net/usb/plusb.c @@ -69,9 +69,7 @@ static inline int pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) { - return usbnet_read_cmd(dev, req, - USB_DIR_IN | USB_TYPE_VENDOR | - USB_RECIP_DEVICE, + return usbnet_write_cmd(dev, req, USB_TYPE_VENDOR | USB_RECIP_DEVICE, val, index, NULL, 0); } -- 2.17.1

2 1

[PATCH OLK-5.10 0/1] CVE-2024-35887
by Yongqiang Liu 06 Jun '24

06 Jun '24

Duoming Zhou (1): ax25: fix use-after-free bugs caused by ax25_ds_del_timer net/ax25/ax25_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1] SUNRPC: Fix RPC client cleaned up the freed pipefs dentries
by Liu Jian 06 Jun '24

06 Jun '24

From: felix <fuzhen5(a)huawei.com> stable inclusion from stable-v5.10.202 commit dedf2a0eb9448ae73b270743e6ea9b108189df46 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QG5Z CVE: CVE-2024-35910 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit bfca5fb4e97c46503ddfc582335917b0cc228264 ] RPC client pipefs dentries cleanup is in separated rpc_remove_pipedir() workqueue,which takes care about pipefs superblock locking. In some special scenarios, when kernel frees the pipefs sb of the current client and immediately alloctes a new pipefs sb, rpc_remove_pipedir function would misjudge the existence of pipefs sb which is not the one it used to hold. As a result, the rpc_remove_pipedir would clean the released freed pipefs dentries. To fix this issue, rpc_remove_pipedir should check whether the current pipefs sb is consistent with the original pipefs sb. This error can be catched by KASAN: ========================================================= [ 250.497700] BUG: KASAN: slab-use-after-free in dget_parent+0x195/0x200 [ 250.498315] Read of size 4 at addr ffff88800a2ab804 by task kworker/0:18/106503 [ 250.500549] Workqueue: events rpc_free_client_work [ 250.501001] Call Trace: [ 250.502880] kasan_report+0xb6/0xf0 [ 250.503209] ? dget_parent+0x195/0x200 [ 250.503561] dget_parent+0x195/0x200 [ 250.503897] ? __pfx_rpc_clntdir_depopulate+0x10/0x10 [ 250.504384] rpc_rmdir_depopulate+0x1b/0x90 [ 250.504781] rpc_remove_client_dir+0xf5/0x150 [ 250.505195] rpc_free_client_work+0xe4/0x230 [ 250.505598] process_one_work+0x8ee/0x13b0 ... [ 22.039056] Allocated by task 244: [ 22.039390] kasan_save_stack+0x22/0x50 [ 22.039758] kasan_set_track+0x25/0x30 [ 22.040109] __kasan_slab_alloc+0x59/0x70 [ 22.040487] kmem_cache_alloc_lru+0xf0/0x240 [ 22.040889] __d_alloc+0x31/0x8e0 [ 22.041207] d_alloc+0x44/0x1f0 [ 22.041514] __rpc_lookup_create_exclusive+0x11c/0x140 [ 22.041987] rpc_mkdir_populate.constprop.0+0x5f/0x110 [ 22.042459] rpc_create_client_dir+0x34/0x150 [ 22.042874] rpc_setup_pipedir_sb+0x102/0x1c0 [ 22.043284] rpc_client_register+0x136/0x4e0 [ 22.043689] rpc_new_client+0x911/0x1020 [ 22.044057] rpc_create_xprt+0xcb/0x370 [ 22.044417] rpc_create+0x36b/0x6c0 ... [ 22.049524] Freed by task 0: [ 22.049803] kasan_save_stack+0x22/0x50 [ 22.050165] kasan_set_track+0x25/0x30 [ 22.050520] kasan_save_free_info+0x2b/0x50 [ 22.050921] __kasan_slab_free+0x10e/0x1a0 [ 22.051306] kmem_cache_free+0xa5/0x390 [ 22.051667] rcu_core+0x62c/0x1930 [ 22.051995] __do_softirq+0x165/0x52a [ 22.052347] [ 22.052503] Last potentially related work creation: [ 22.052952] kasan_save_stack+0x22/0x50 [ 22.053313] __kasan_record_aux_stack+0x8e/0xa0 [ 22.053739] __call_rcu_common.constprop.0+0x6b/0x8b0 [ 22.054209] dentry_free+0xb2/0x140 [ 22.054540] __dentry_kill+0x3be/0x540 [ 22.054900] shrink_dentry_list+0x199/0x510 [ 22.055293] shrink_dcache_parent+0x190/0x240 [ 22.055703] do_one_tree+0x11/0x40 [ 22.056028] shrink_dcache_for_umount+0x61/0x140 [ 22.056461] generic_shutdown_super+0x70/0x590 [ 22.056879] kill_anon_super+0x3a/0x60 [ 22.057234] rpc_kill_sb+0x121/0x200 Fixes: 0157d021d23a ("SUNRPC: handle RPC client pipefs dentries by network namespace aware routines") Signed-off-by: felix <fuzhen5(a)huawei.com> Signed-off-by: Trond Myklebust <trond.myklebust(a)hammerspace.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: sanglipeng <sanglipeng1(a)jd.com> Conflicts: include/linux/sunrpc/clnt.h Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- include/linux/sunrpc/clnt.h | 1 + net/sunrpc/clnt.c | 5 ++++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index b7b1abe3e048..39b8a0b85902 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -80,6 +80,7 @@ struct rpc_clnt { struct work_struct cl_work; }; const struct cred *cl_cred; + struct super_block *pipefs_sb; KABI_RESERVE(1) KABI_RESERVE(2) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 6fe8cb84638f..c89e225fb73c 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -110,7 +110,8 @@ static void rpc_clnt_remove_pipedir(struct rpc_clnt *clnt) pipefs_sb = rpc_get_sb_net(net); if (pipefs_sb) { - __rpc_clnt_remove_pipedir(clnt); + if (pipefs_sb == clnt->pipefs_sb) + __rpc_clnt_remove_pipedir(clnt); rpc_put_sb_net(net); } } @@ -150,6 +151,8 @@ rpc_setup_pipedir(struct super_block *pipefs_sb, struct rpc_clnt *clnt) { struct dentry *dentry; + clnt->pipefs_sb = pipefs_sb; + if (clnt->cl_program->pipe_dir_name != NULL) { dentry = rpc_setup_pipedir_sb(pipefs_sb, clnt); if (IS_ERR(dentry)) -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: openvswitch: fix possible memory leak in ovs_meter_cmd_set()
by Li Zetao 06 Jun '24

06 Jun '24

From: Hangyu Hua <hbh25y(a)gmail.com> stable inclusion from stable-v5.10.169 commit c0f65ee0a3329eb4b94beaef0268633696e2d0c6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6PMQI Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 2fa28f5c6fcbfc794340684f36d2581b4f2d20b5 upstream. old_meter needs to be free after it is detached regardless of whether the new meter is successfully attached. Fixes: c7c4c44c9a95 ("net: openvswitch: expand the meters supported number") Signed-off-by: Hangyu Hua <hbh25y(a)gmail.com> Acked-by: Eelco Chaudron <echaudro(a)redhat.com> Reviewed-by: Simon Horman <simon.horman(a)corigine.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- net/openvswitch/meter.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c index e594b4d6b58a9..0cf3dda5319fe 100644 --- a/net/openvswitch/meter.c +++ b/net/openvswitch/meter.c @@ -450,7 +450,7 @@ static int ovs_meter_cmd_set(struct sk_buff *skb, struct genl_info *info) err = attach_meter(meter_tbl, meter); if (err) - goto exit_unlock; + goto exit_free_old_meter; ovs_unlock(); @@ -473,6 +473,8 @@ static int ovs_meter_cmd_set(struct sk_buff *skb, struct genl_info *info) genlmsg_end(reply, ovs_reply_header); return genlmsg_reply(reply, info); +exit_free_old_meter: + ovs_meter_free(old_meter); exit_unlock: ovs_unlock(); nlmsg_free(reply); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS 0/2] CVE-2024-35910
by Liu Jian 06 Jun '24

06 Jun '24

CVE-2024-35910 Eric Dumazet (1): tcp: properly terminate timers for kernel sockets Geliang Tang (1): mptcp: add sk_stop_timer_sync helper include/net/inet_connection_sock.h | 1 + include/net/sock.h | 9 +++++++++ net/core/sock.c | 7 +++++++ net/ipv4/inet_connection_sock.c | 14 ++++++++++++++ net/ipv4/tcp.c | 2 ++ 5 files changed, 33 insertions(+) -- 2.34.1

2 3

[PATCH openEuler-1.0-LTS] net/sched: act_skbmod: prevent kernel-infoleak
by Chen Jun 06 Jun '24

06 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v4.19.312 commit f190a4aa03cbd518bd9c62a66e1233984f5fd2ec category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QG2F CVE: CVE-2024-35893 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit d313eb8b77557a6d5855f42d2234bd592c7b50dd upstream. syzbot found that tcf_skbmod_dump() was copying four bytes from kernel stack to user space [1]. The issue here is that 'struct tc_skbmod' has a four bytes hole. We need to clear the structure before filling fields. [1] BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline] BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:29 [inline] BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:245 [inline] BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:271 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185 instrument_copy_to_user include/linux/instrumented.h:114 [inline] copy_to_user_iter lib/iov_iter.c:24 [inline] iterate_ubuf include/linux/iov_iter.h:29 [inline] iterate_and_advance2 include/linux/iov_iter.h:245 [inline] iterate_and_advance include/linux/iov_iter.h:271 [inline] _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185 copy_to_iter include/linux/uio.h:196 [inline] simple_copy_to_iter net/core/datagram.c:532 [inline] __skb_datagram_iter+0x185/0x1000 net/core/datagram.c:420 skb_copy_datagram_iter+0x5c/0x200 net/core/datagram.c:546 skb_copy_datagram_msg include/linux/skbuff.h:4050 [inline] netlink_recvmsg+0x432/0x1610 net/netlink/af_netlink.c:1962 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x2c4/0x340 net/socket.c:1068 __sys_recvfrom+0x35a/0x5f0 net/socket.c:2242 __do_sys_recvfrom net/socket.c:2260 [inline] __se_sys_recvfrom net/socket.c:2256 [inline] __x64_sys_recvfrom+0x126/0x1d0 net/socket.c:2256 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Uninit was stored to memory at: pskb_expand_head+0x30f/0x19d0 net/core/skbuff.c:2253 netlink_trim+0x2c2/0x330 net/netlink/af_netlink.c:1317 netlink_unicast+0x9f/0x1260 net/netlink/af_netlink.c:1351 nlmsg_unicast include/net/netlink.h:1144 [inline] nlmsg_notify+0x21d/0x2f0 net/netlink/af_netlink.c:2610 rtnetlink_send+0x73/0x90 net/core/rtnetlink.c:741 rtnetlink_maybe_send include/linux/rtnetlink.h:17 [inline] tcf_add_notify net/sched/act_api.c:2048 [inline] tcf_action_add net/sched/act_api.c:2071 [inline] tc_ctl_action+0x146e/0x19d0 net/sched/act_api.c:2119 rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2559 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6613 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0xf4c/0x1260 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 ____sys_sendmsg+0x877/0xb60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2674 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Uninit was stored to memory at: __nla_put lib/nlattr.c:1041 [inline] nla_put+0x1c6/0x230 lib/nlattr.c:1099 tcf_skbmod_dump+0x23f/0xc20 net/sched/act_skbmod.c:256 tcf_action_dump_old net/sched/act_api.c:1191 [inline] tcf_action_dump_1+0x85e/0x970 net/sched/act_api.c:1227 tcf_action_dump+0x1fd/0x460 net/sched/act_api.c:1251 tca_get_fill+0x519/0x7a0 net/sched/act_api.c:1628 tcf_add_notify_msg net/sched/act_api.c:2023 [inline] tcf_add_notify net/sched/act_api.c:2042 [inline] tcf_action_add net/sched/act_api.c:2071 [inline] tc_ctl_action+0x1365/0x19d0 net/sched/act_api.c:2119 rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2559 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6613 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0xf4c/0x1260 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 ____sys_sendmsg+0x877/0xb60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2674 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Local variable opt created at: tcf_skbmod_dump+0x9d/0xc20 net/sched/act_skbmod.c:244 tcf_action_dump_old net/sched/act_api.c:1191 [inline] tcf_action_dump_1+0x85e/0x970 net/sched/act_api.c:1227 Bytes 188-191 of 248 are uninitialized Memory access of size 248 starts at ffff888117697680 Data copied to user address 00007ffe56d855f0 Fixes: 86da71b57383 ("net_sched: Introduce skbmod action") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Jamal Hadi Salim <jhs(a)mojatatu.com> Link: https://lore.kernel.org/r/20240403130908.93421-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- net/sched/act_skbmod.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/net/sched/act_skbmod.c b/net/sched/act_skbmod.c index 03a272af664a..51d4696aeea3 100644 --- a/net/sched/act_skbmod.c +++ b/net/sched/act_skbmod.c @@ -210,13 +210,13 @@ static int tcf_skbmod_dump(struct sk_buff *skb, struct tc_action *a, struct tcf_skbmod *d = to_skbmod(a); unsigned char *b = skb_tail_pointer(skb); struct tcf_skbmod_params *p; - struct tc_skbmod opt = { - .index = d->tcf_index, - .refcnt = refcount_read(&d->tcf_refcnt) - ref, - .bindcnt = atomic_read(&d->tcf_bindcnt) - bind, - }; + struct tc_skbmod opt; struct tcf_t t; + memset(&opt, 0, sizeof(opt)); + opt.index = d->tcf_index; + opt.refcnt = refcount_read(&d->tcf_refcnt) - ref, + opt.bindcnt = atomic_read(&d->tcf_bindcnt) - bind; spin_lock_bh(&d->tcf_lock); opt.action = d->tcf_action; p = rcu_dereference_protected(d->skbmod_p, -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] Fix page corruption caused by racy check in __free_pages
by Ze Zuo 06 Jun '24

06 Jun '24

From: David Chen <david.chen(a)nutanix.com> stable inclusion from stable-v5.10.168 commit 0a626e27f984dfbe96bd8e4fd08f20a2ede3ea23 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4KT CVE: CVE-2023-52739 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 462a8e08e0e6287e5ce13187257edbf24213ed03 upstream. When we upgraded our kernel, we started seeing some page corruption like the following consistently: BUG: Bad page state in process ganesha.nfsd pfn:1304ca page:0000000022261c55 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0 pfn:0x1304ca flags: 0x17ffffc0000000() raw: 0017ffffc0000000 ffff8a513ffd4c98 ffffeee24b35ec08 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffff7f 0000000000000000 page dumped because: nonzero mapcount CPU: 0 PID: 15567 Comm: ganesha.nfsd Kdump: loaded Tainted: P B O 5.10.158-1.nutanix.20221209.el7.x86_64 #1 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/05/2016 Call Trace: dump_stack+0x74/0x96 bad_page.cold+0x63/0x94 check_new_page_bad+0x6d/0x80 rmqueue+0x46e/0x970 get_page_from_freelist+0xcb/0x3f0 ? _cond_resched+0x19/0x40 __alloc_pages_nodemask+0x164/0x300 alloc_pages_current+0x87/0xf0 skb_page_frag_refill+0x84/0x110 ... Sometimes, it would also show up as corruption in the free list pointer and cause crashes. After bisecting the issue, we found the issue started from commit e320d3012d25 ("mm/page_alloc.c: fix freeing non-compound pages"): if (put_page_testzero(page)) free_the_page(page, order); else if (!PageHead(page)) while (order-- > 0) free_the_page(page + (1 << order), order); So the problem is the check PageHead is racy because at this point we already dropped our reference to the page. So even if we came in with compound page, the page can already be freed and PageHead can return false and we will end up freeing all the tail pages causing double free. Fixes: e320d3012d25 ("mm/page_alloc.c: fix freeing non-compound pages") Link: https://lore.kernel.org/lkml/BYAPR02MB448855960A9656EEA81141FC94D99@BYAPR02… Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: stable(a)vger.kernel.org Signed-off-by: Chunwei Chen <david.chen(a)nutanix.com> Reviewed-by: Vlastimil Babka <vbabka(a)suse.cz> Reviewed-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Ze Zuo <zuoze1(a)huawei.com> --- mm/page_alloc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 42117da942447..ee95540488620 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5459,9 +5459,12 @@ static inline void free_the_page(struct page *page, unsigned int order) void __free_pages(struct page *page, unsigned int order) { + /* get PageHead before we drop reference */ + int head = PageHead(page); + if (put_page_testzero(page)) free_the_page(page, order); - else if (!PageHead(page)) + else if (!head) while (order-- > 0) free_the_page(page + (1 << order), order); } -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] ubifs: Set page uptodate in the correct place
by Wang Zhaolong 06 Jun '24

06 Jun '24

From: "Matthew Wilcox (Oracle)" <willy(a)infradead.org> stable inclusion from stable-v5.10.215 commit 8f599ab6fabbca4c741107eade70722a98adfd9f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q97O CVE: CVE-2024-35821 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 723012cab779eee8228376754e22c6594229bf8f ] Page cache reads are lockless, so setting the freshly allocated page uptodate before we've overwritten it with the data it's supposed to have in it will allow a simultaneous reader to see old data. Move the call to SetPageUptodate into ubifs_write_end(), which is after we copied the new data into the page. Fixes: 1e51764a3c2a ("UBIFS: add new flash file system") Cc: stable(a)vger.kernel.org Signed-off-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Reviewed-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> --- fs/ubifs/file.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index b35983dff75b..f333ceac67dc 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -262,9 +262,6 @@ static int write_begin_slow(struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } if (PagePrivate(page)) @@ -463,9 +460,6 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } err = allocate_budget(c, page, ui, appending); @@ -475,10 +469,8 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, * If we skipped reading the page because we were going to * write all of it, then it is not up to date. */ - if (skipped_read) { + if (skipped_read) ClearPageChecked(page); - ClearPageUptodate(page); - } /* * Budgeting failed which means it would have to force * write-back but didn't, because we set the @fast flag in the @@ -569,6 +561,9 @@ static int ubifs_write_end(struct file *file, struct address_space *mapping, goto out; } + if (len == PAGE_SIZE) + SetPageUptodate(page); + if (!PagePrivate(page)) { attach_page_private(page, (void *)1); atomic_long_inc(&c->dirty_pg_cnt); -- 2.34.3

2 1

[PATCH OLK-5.10] ubifs: Set page uptodate in the correct place
by Wang Zhaolong 06 Jun '24

06 Jun '24

From: "Matthew Wilcox (Oracle)" <willy(a)infradead.org> stable inclusion from stable-v5.10.215 commit 8f599ab6fabbca4c741107eade70722a98adfd9f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q97O CVE: CVE-2024-35821 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 723012cab779eee8228376754e22c6594229bf8f ] Page cache reads are lockless, so setting the freshly allocated page uptodate before we've overwritten it with the data it's supposed to have in it will allow a simultaneous reader to see old data. Move the call to SetPageUptodate into ubifs_write_end(), which is after we copied the new data into the page. Fixes: 1e51764a3c2a ("UBIFS: add new flash file system") Cc: stable(a)vger.kernel.org Signed-off-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Reviewed-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> --- fs/ubifs/file.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index b35983dff75b..f333ceac67dc 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -262,9 +262,6 @@ static int write_begin_slow(struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } if (PagePrivate(page)) @@ -463,9 +460,6 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } err = allocate_budget(c, page, ui, appending); @@ -475,10 +469,8 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, * If we skipped reading the page because we were going to * write all of it, then it is not up to date. */ - if (skipped_read) { + if (skipped_read) ClearPageChecked(page); - ClearPageUptodate(page); - } /* * Budgeting failed which means it would have to force * write-back but didn't, because we set the @fast flag in the @@ -569,6 +561,9 @@ static int ubifs_write_end(struct file *file, struct address_space *mapping, goto out; } + if (len == PAGE_SIZE) + SetPageUptodate(page); + if (!PagePrivate(page)) { attach_page_private(page, (void *)1); atomic_long_inc(&c->dirty_pg_cnt); -- 2.34.3

2 1

[PATCH openEuler-1.0-LTS] ubifs: Set page uptodate in the correct place
by Wang Zhaolong 06 Jun '24

06 Jun '24

From: "Matthew Wilcox (Oracle)" <willy(a)infradead.org> stable inclusion from stable-v5.10.215 commit 8f599ab6fabbca4c741107eade70722a98adfd9f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q97O CVE: CVE-2024-35821 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 723012cab779eee8228376754e22c6594229bf8f ] Page cache reads are lockless, so setting the freshly allocated page uptodate before we've overwritten it with the data it's supposed to have in it will allow a simultaneous reader to see old data. Move the call to SetPageUptodate into ubifs_write_end(), which is after we copied the new data into the page. Fixes: 1e51764a3c2a ("UBIFS: add new flash file system") Cc: stable(a)vger.kernel.org Signed-off-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Reviewed-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: fs/ubifs/file.c [Conflicting patch fb8bc4c74ae("ubifs: ubifs_writepage: Mark page dirty after writing inode failed") is not adapted and merged into the current branch.] Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> --- fs/ubifs/file.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 1b78f2e09218..25f5548cbc45 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -274,9 +274,6 @@ static int write_begin_slow(struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } if (PagePrivate(page)) @@ -475,9 +472,6 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } err = allocate_budget(c, page, ui, appending); @@ -487,10 +481,8 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, * If we skipped reading the page because we were going to * write all of it, then it is not up to date. */ - if (skipped_read) { + if (skipped_read) ClearPageChecked(page); - ClearPageUptodate(page); - } /* * Budgeting failed which means it would have to force * write-back but didn't, because we set the @fast flag in the @@ -581,6 +573,9 @@ static int ubifs_write_end(struct file *file, struct address_space *mapping, goto out; } + if (len == PAGE_SIZE) + SetPageUptodate(page); + if (!PagePrivate(page)) { SetPagePrivate(page); atomic_long_inc(&c->dirty_pg_cnt); -- 2.34.3

2 1

[openeuler:openEuler-1.0-LTS] BUILD REGRESSION 23ae7e1b6ed0830489f3bb5a87f71935e11d7bba
by kernel test robot 06 Jun '24

06 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: 23ae7e1b6ed0830489f3bb5a87f71935e11d7bba !8516 CVE-2021-47409 Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-allmodconfig | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code |-- arm64-defconfig | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code |-- x86_64-buildonly-randconfig-001-20240606 | `-- fs-f2fs-recovery.o:warning:objtool:missing-symbol-for-section-.init.text |-- x86_64-buildonly-randconfig-003-20240606 | `-- fs-f2fs-.tmp_recovery.o:warning:objtool:missing-symbol-for-section-.init.text |-- x86_64-buildonly-randconfig-004-20240606 | |-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code | `-- fs-f2fs-recovery.o:warning:objtool:missing-symbol-for-section-.init.text |-- x86_64-randconfig-001-20240606 | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code `-- x86_64-randconfig-161-20240606 `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code clang_recent_errors `-- x86_64-allyesconfig |-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:mixing-declarations-and-code-is-a-C99-extension `-- fs-f2fs-.tmp_recovery.o:warning:objtool:missing-symbol-for-section-.init.text elapsed time: 793m configs tested: 30 configs skipped: 131 tested configs: arm64 allmodconfig gcc arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240606 gcc arm64 randconfig-002-20240606 gcc arm64 randconfig-003-20240606 gcc arm64 randconfig-004-20240606 gcc x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240606 gcc x86_64 buildonly-randconfig-002-20240606 clang x86_64 buildonly-randconfig-003-20240606 gcc x86_64 buildonly-randconfig-004-20240606 gcc x86_64 buildonly-randconfig-005-20240606 gcc x86_64 buildonly-randconfig-006-20240606 clang x86_64 defconfig gcc x86_64 randconfig-001-20240606 gcc x86_64 randconfig-002-20240606 gcc x86_64 randconfig-003-20240606 gcc x86_64 randconfig-004-20240606 clang x86_64 randconfig-005-20240606 gcc x86_64 randconfig-006-20240606 gcc x86_64 randconfig-011-20240606 clang x86_64 randconfig-012-20240606 gcc x86_64 randconfig-013-20240606 clang x86_64 randconfig-014-20240606 clang x86_64 randconfig-015-20240606 clang x86_64 randconfig-016-20240606 clang x86_64 randconfig-072-20240606 gcc x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10] BUILD SUCCESS 87d5a74b8c26d40481b807c5f4f8a5225664da9b
by kernel test robot 06 Jun '24

06 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 87d5a74b8c26d40481b807c5f4f8a5225664da9b !8646 Fix vf init and common user permissions issue Warning ids grouped by kconfigs: clang_recent_errors |-- arm64-allyesconfig | |-- Documentation-devicetree-bindings-iio-addac-adi-ad74413r.yaml:channel:Missing-additionalProperties-unevaluatedProperties-constraint | `-- Documentation-devicetree-bindings-sound-amlogic-gx-sound-card.yaml:codec(-):Missing-additionalProperties-unevaluatedProperties-constraint `-- x86_64-allnoconfig |-- drivers-net-ethernet-yunsilicon-xsc-net-main.c:common-qp.h-is-included-more-than-once. |-- drivers-ub-urma-ubcore-ubcore_cdev_file.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_device.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_genl.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_genl_admin.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_uvs_cmd.c:ubcore_device.h-is-included-more-than-once. `-- drivers-ub-urma-uburma-uburma_mmap.c:linux-version.h-not-needed. elapsed time: 790m configs tested: 35 configs skipped: 133 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig clang arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240606 clang arm64 randconfig-002-20240606 gcc arm64 randconfig-003-20240606 clang arm64 randconfig-004-20240606 clang x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240606 gcc x86_64 buildonly-randconfig-002-20240606 clang x86_64 buildonly-randconfig-003-20240606 gcc x86_64 buildonly-randconfig-004-20240606 gcc x86_64 buildonly-randconfig-005-20240606 gcc x86_64 buildonly-randconfig-006-20240606 clang x86_64 defconfig gcc x86_64 randconfig-001-20240606 gcc x86_64 randconfig-002-20240606 gcc x86_64 randconfig-003-20240606 gcc x86_64 randconfig-004-20240606 clang x86_64 randconfig-005-20240606 gcc x86_64 randconfig-006-20240606 gcc x86_64 randconfig-011-20240606 clang x86_64 randconfig-012-20240606 gcc x86_64 randconfig-013-20240606 clang x86_64 randconfig-014-20240606 clang x86_64 randconfig-015-20240606 clang x86_64 randconfig-016-20240606 clang x86_64 randconfig-071-20240606 clang x86_64 randconfig-072-20240606 gcc x86_64 randconfig-073-20240606 clang x86_64 randconfig-074-20240606 clang x86_64 randconfig-075-20240606 gcc x86_64 randconfig-076-20240606 clang x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6] BUILD REGRESSION b681a3319371ee8ba71579a3b546dda7d7b4a902
by kernel test robot 06 Jun '24

06 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: b681a3319371ee8ba71579a3b546dda7d7b4a902 !8621 LoongArch: fix HT RX INT TRANS register not initialized Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-defconfig | |-- arch-arm64-kernel-cpufeature.c:warning:enable_pseudo_nmi-defined-but-not-used | `-- arch-arm64-kvm-vgic-vgic-mmio.c:warning:variable-is_pending-set-but-not-used |-- arm64-randconfig-001-20240605 | `-- arch-arm64-kvm-vgic-vgic-mmio.c:warning:variable-is_pending-set-but-not-used |-- loongarch-allnoconfig | `-- drivers-irqchip-irq-loongson-eiointc.c:error:NODES_PER_FLATMODE_NODE-undeclared-(first-use-in-this-function) `-- loongarch-randconfig-002-20240605 `-- drivers-irqchip-irq-loongson-eiointc.c:error:NODES_PER_FLATMODE_NODE-undeclared-(first-use-in-this-function) clang_recent_errors `-- arm64-allmodconfig `-- arch-arm64-kvm-vgic-vgic-mmio.c:warning:variable-is_pending-set-but-not-used elapsed time: 854m configs tested: 40 configs skipped: 126 tested configs: arm64 allmodconfig clang arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240605 gcc arm64 randconfig-002-20240605 clang arm64 randconfig-003-20240605 clang arm64 randconfig-004-20240605 clang loongarch allmodconfig gcc loongarch allnoconfig gcc loongarch defconfig gcc loongarch randconfig-001-20240605 gcc loongarch randconfig-002-20240605 gcc x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240605 gcc x86_64 buildonly-randconfig-002-20240605 gcc x86_64 buildonly-randconfig-003-20240605 gcc x86_64 buildonly-randconfig-004-20240605 clang x86_64 buildonly-randconfig-005-20240605 clang x86_64 buildonly-randconfig-006-20240605 clang x86_64 defconfig gcc x86_64 randconfig-001-20240605 clang x86_64 randconfig-002-20240605 clang x86_64 randconfig-003-20240605 gcc x86_64 randconfig-004-20240605 clang x86_64 randconfig-005-20240605 clang x86_64 randconfig-006-20240605 gcc x86_64 randconfig-011-20240605 clang x86_64 randconfig-012-20240605 gcc x86_64 randconfig-013-20240605 clang x86_64 randconfig-014-20240605 gcc x86_64 randconfig-015-20240605 clang x86_64 randconfig-016-20240605 gcc x86_64 randconfig-071-20240605 gcc x86_64 randconfig-072-20240605 clang x86_64 randconfig-073-20240605 gcc x86_64 randconfig-074-20240605 gcc x86_64 randconfig-075-20240605 gcc x86_64 randconfig-076-20240605 gcc x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH openEuler-1.0-LTS] media: imon: fix access to invalid resource for the second interface
by dinglongwei 05 Jun '24

05 Jun '24

From: Takashi Iwai <tiwai(a)suse.de> stable inclusion from stable-v5.10.202 commit 0f5068519f89d928d6c51100e4b274479123829f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4N0 CVE: CVE-2023-52754 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit a1766a4fd83befa0b34d932d532e7ebb7fab1fa7 ] imon driver probes two USB interfaces, and at the probe of the second interface, the driver assumes blindly that the first interface got bound with the same imon driver. It's usually true, but it's still possible that the first interface is bound with another driver via a malformed descriptor. Then it may lead to a memory corruption, as spotted by syzkaller; imon driver accesses the data from drvdata as struct imon_context object although it's a completely different one that was assigned by another driver. This patch adds a sanity check -- whether the first interface is really bound with the imon driver or not -- for avoiding the problem above at the probe time. Reported-by: syzbot+59875ffef5cb9c9b29e9(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/000000000000a838aa0603cc74d6@google.com/ Tested-by: Ricardo B. Marliere <ricardo(a)marliere.net> Link: https://lore.kernel.org/r/20230922005152.163640-1-ricardo@marliere.net Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Sean Young <sean(a)mess.org> Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/media/rc/imon.c [Fix context] Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/media/rc/imon.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c index 6b10363fb6f0..4dfaa791888c 100644 --- a/drivers/media/rc/imon.c +++ b/drivers/media/rc/imon.c @@ -2394,6 +2394,12 @@ static int imon_probe(struct usb_interface *interface, goto fail; } + if (first_if->dev.driver != interface->dev.driver) { + dev_err(&interface->dev, "inconsistent driver matching\n"); + ret = -EINVAL; + goto fail; + } + first_if_ctx = usb_get_intfdata(first_if); if (ifnum == 0) { -- 2.17.1

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[PATCH openEuler-1.0-LTS] regmap: Fix possible double-free in regcache_rbtree_exit()
by dinglongwei 05 Jun '24

05 Jun '24

From: Yang Yingliang <yangyingliang(a)huawei.com> stable inclusion from stable-v4.19.215 commit 3dae1a4eced3ee733d7222e69b8a55caf2d61091 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RD9Z CVE: CVE-2021-47483 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 55e6d8037805b3400096d621091dfbf713f97e83 upstream. In regcache_rbtree_insert_to_block(), when 'present' realloc failed, the 'blk' which is supposed to assign to 'rbnode->block' will be freed, so 'rbnode->block' points a freed memory, in the error handling path of regcache_rbtree_init(), 'rbnode->block' will be freed again in regcache_rbtree_exit(), KASAN will report double-free as follows: BUG: KASAN: double-free or invalid-free in kfree+0xce/0x390 Call Trace: slab_free_freelist_hook+0x10d/0x240 kfree+0xce/0x390 regcache_rbtree_exit+0x15d/0x1a0 regcache_rbtree_init+0x224/0x2c0 regcache_init+0x88d/0x1310 __regmap_init+0x3151/0x4a80 __devm_regmap_init+0x7d/0x100 madera_spi_probe+0x10f/0x333 [madera_spi] spi_probe+0x183/0x210 really_probe+0x285/0xc30 To fix this, moving up the assignment of rbnode->block to immediately after the reallocation has succeeded so that the data structure stays valid even if the second reallocation fails. Reported-by: Hulk Robot <hulkci(a)huawei.com> Fixes: 3f4ff561bc88b ("regmap: rbtree: Make cache_present bitmap per node") Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Link: https://lore.kernel.org/r/20211012023735.1632786-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: drivers/base/regmap/regcache-rbtree.c [Fix context] Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/base/regmap/regcache-rbtree.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 09580b1448bc..b6f8f4059e25 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -295,14 +295,14 @@ static int regcache_rbtree_insert_to_block(struct regmap *map, if (!blk) return -ENOMEM; + rbnode->block = blk; + if (BITS_TO_LONGS(blklen) > BITS_TO_LONGS(rbnode->blklen)) { present = krealloc(rbnode->cache_present, BITS_TO_LONGS(blklen) * sizeof(*present), map->alloc_flags); - if (!present) { - kfree(blk); + if (!present) return -ENOMEM; - } memset(present + BITS_TO_LONGS(rbnode->blklen), 0, (BITS_TO_LONGS(blklen) - BITS_TO_LONGS(rbnode->blklen)) @@ -319,7 +319,6 @@ static int regcache_rbtree_insert_to_block(struct regmap *map, } /* update the rbnode block, its size and the base register */ - rbnode->block = blk; rbnode->blklen = blklen; rbnode->base_reg = base_reg; rbnode->cache_present = present; -- 2.17.1

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[PATCH openEuler-1.0-LTS] isdn: mISDN: Fix sleeping function called from invalid context
by dinglongwei 05 Jun '24

05 Jun '24

From: Zheyu Ma <zheyuma97(a)gmail.com> stable inclusion from stable-v4.19.214 commit a5b34409d3fc52114c828be4adbc30744fa3258b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RC2J CVE: CVE-2021-47468 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 6510e80a0b81b5d814e3aea6297ba42f5e76f73c ] The driver can call card->isac.release() function from an atomic context. Fix this by calling this function after releasing the lock. The following log reveals it: [ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018 [ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe [ 44.169574 ] INFO: lockdep is turned off. [ 44.169899 ] irq event stamp: 0 [ 44.170160 ] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 44.170627 ] hardirqs last disabled at (0): [<ffffffff814209ed>] copy_process+0x132d/0x3e00 [ 44.171240 ] softirqs last enabled at (0): [<ffffffff81420a1a>] copy_process+0x135a/0x3e00 [ 44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 44.172318 ] Preemption disabled at: [ 44.172320 ] [<ffffffffa009b0a9>] nj_release+0x69/0x500 [netjet] [ 44.174441 ] Call Trace: [ 44.174630 ] dump_stack_lvl+0xa8/0xd1 [ 44.174912 ] dump_stack+0x15/0x17 [ 44.175166 ] ___might_sleep+0x3a2/0x510 [ 44.175459 ] ? nj_release+0x69/0x500 [netjet] [ 44.175791 ] __might_sleep+0x82/0xe0 [ 44.176063 ] ? start_flush_work+0x20/0x7b0 [ 44.176375 ] start_flush_work+0x33/0x7b0 [ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170 [ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0 [ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0 [ 44.177711 ] __flush_work+0x11a/0x1a0 [ 44.177991 ] ? flush_work+0x20/0x20 [ 44.178257 ] ? lock_release+0x13c/0x8f0 [ 44.178550 ] ? __kasan_check_write+0x14/0x20 [ 44.178872 ] ? do_raw_spin_lock+0x148/0x360 [ 44.179187 ] ? read_lock_is_recursive+0x20/0x20 [ 44.179530 ] ? __kasan_check_read+0x11/0x20 [ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900 [ 44.180168 ] ? ____kasan_slab_free+0x116/0x140 [ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60 [ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0 [ 44.181189 ] ? kfree+0x13e/0x290 [ 44.181438 ] flush_work+0x17/0x20 [ 44.181695 ] mISDN_freedchannel+0xe8/0x100 [ 44.182006 ] isac_release+0x210/0x260 [mISDNipac] [ 44.182366 ] nj_release+0xf6/0x500 [netjet] [ 44.182685 ] nj_remove+0x48/0x70 [netjet] [ 44.182989 ] pci_device_remove+0xa9/0x250 Signed-off-by: Zheyu Ma <zheyuma97(a)gmail.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/isdn/hardware/mISDN/netjet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c index 448370da2c3f..4a342daac98d 100644 --- a/drivers/isdn/hardware/mISDN/netjet.c +++ b/drivers/isdn/hardware/mISDN/netjet.c @@ -963,8 +963,8 @@ nj_release(struct tiger_hw *card) nj_disable_hwirq(card); mode_tiger(&card->bc[0], ISDN_P_NONE); mode_tiger(&card->bc[1], ISDN_P_NONE); - card->isac.release(&card->isac); spin_unlock_irqrestore(&card->lock, flags); + card->isac.release(&card->isac); release_region(card->base, card->base_s); card->base_s = 0; } -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS] usb: dwc2: fix possible NULL pointer dereference caused by driver concurrency
by dinglongwei 05 Jun '24

05 Jun '24

From: Jia-Ju Bai <baijiaju(a)buaa.edu.cn> stable inclusion from stable-v4.19.299 commit fed492aa6493a91a77ebd51da6fb939c98d94a0d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RFRD CVE: CVE-2023-52855 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit ef307bc6ef04e8c1ea843231db58e3afaafa9fa6 ] In _dwc2_hcd_urb_enqueue(), "urb->hcpriv = NULL" is executed without holding the lock "hsotg->lock". In _dwc2_hcd_urb_dequeue(): spin_lock_irqsave(&hsotg->lock, flags); ... if (!urb->hcpriv) { dev_dbg(hsotg->dev, "## urb->hcpriv is NULL ##\n"); goto out; } rc = dwc2_hcd_urb_dequeue(hsotg, urb->hcpriv); // Use urb->hcpriv ... out: spin_unlock_irqrestore(&hsotg->lock, flags); When _dwc2_hcd_urb_enqueue() and _dwc2_hcd_urb_dequeue() are concurrently executed, the NULL check of "urb->hcpriv" can be executed before "urb->hcpriv = NULL". After urb->hcpriv is NULL, it can be used in the function call to dwc2_hcd_urb_dequeue(), which can cause a NULL pointer dereference. This possible bug is found by an experimental static analysis tool developed by myself. This tool analyzes the locking APIs to extract function pairs that can be concurrently executed, and then analyzes the instructions in the paired functions to identify possible concurrency bugs including data races and atomicity violations. The above possible bug is reported, when my tool analyzes the source code of Linux 6.5. To fix this possible bug, "urb->hcpriv = NULL" should be executed with holding the lock "hsotg->lock". After using this patch, my tool never reports the possible bug, with the kernelconfiguration allyesconfig for x86_64. Because I have no associated hardware, I cannot test the patch in runtime testing, and just verify it according to the code logic. Fixes: 33ad261aa62b ("usb: dwc2: host: spinlock urb_enqueue") Signed-off-by: Jia-Ju Bai <baijiaju(a)buaa.edu.cn> Link: https://lore.kernel.org/r/20230926024404.832096-1-baijiaju@buaa.edu.cn Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/usb/dwc2/hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 2fe0b953921f..8b8c113b7267 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -4844,8 +4844,8 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, if (qh_allocated && qh->channel && qh->channel->qh == qh) qh->channel->qh = NULL; fail2: - spin_unlock_irqrestore(&hsotg->lock, flags); urb->hcpriv = NULL; + spin_unlock_irqrestore(&hsotg->lock, flags); kfree(qtd); qtd = NULL; fail1: -- 2.17.1

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