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[PATCH openEuler-22.03-LTS-SP1] Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST
by Yongqiang Liu 12 Jul '24

12 Jul '24

From: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> stable inclusion from stable-v5.10.212 commit df193568d61234c81de7ed4d540c01975de60277 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8M1 CVE: CVE-2024-27416 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 7e74aa53a68bf60f6019bd5d9a9a1406ec4d4865 ] If we received HCI_EV_IO_CAPA_REQUEST while HCI_OP_READ_REMOTE_EXT_FEATURES is yet to be responded assume the remote does support SSP since otherwise this event shouldn't be generated. Link: https://lore.kernel.org/linux-bluetooth/CABBYNZ+9UdG1cMZVmdtN3U2aS16AKMCyTA… Fixes: c7f59461f5a7 ("Bluetooth: Fix a refcnt underflow problem for hci_conn") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Rui Xiang <rui.xiang(a)huawei.com> --- net/bluetooth/hci_event.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index e01159d8fabf..ff348a8a2424 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -4620,9 +4620,12 @@ static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb) hci_dev_lock(hdev); conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); - if (!conn || !hci_conn_ssp_enabled(conn)) + if (!conn || !hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) goto unlock; + /* Assume remote supports SSP since it has triggered this event */ + set_bit(HCI_CONN_SSP_ENABLED, &conn->flags); + hci_conn_hold(conn); if (!hci_dev_test_flag(hdev, HCI_MGMT)) -- 2.34.1

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[PATCH OLK-5.10] fs: improve dump_mapping() robustness
by Jinjiang Tu 12 Jul '24

12 Jul '24

From: Baolin Wang <baolin.wang(a)linux.alibaba.com> mainline inclusion from mainline-v6.9-rc1 commit 8b3d838139bcd1e552f1899191f734264ce2a1a5 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IACHGW CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------- We met a kernel crash issue when running stress-ng testing, and the system crashes when printing the dentry name in dump_mapping(). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 pc : dentry_name+0xd8/0x224 lr : pointer+0x22c/0x370 sp : ffff800025f134c0 ...... Call trace: dentry_name+0xd8/0x224 pointer+0x22c/0x370 vsnprintf+0x1ec/0x730 vscnprintf+0x2c/0x60 vprintk_store+0x70/0x234 vprintk_emit+0xe0/0x24c vprintk_default+0x3c/0x44 vprintk_func+0x84/0x2d0 printk+0x64/0x88 __dump_page+0x52c/0x530 dump_page+0x14/0x20 set_migratetype_isolate+0x110/0x224 start_isolate_page_range+0xc4/0x20c offline_pages+0x124/0x474 memory_block_offline+0x44/0xf4 memory_subsys_offline+0x3c/0x70 device_offline+0xf0/0x120 ...... The root cause is that, one thread is doing page migration, and we will use the target page's ->mapping field to save 'anon_vma' pointer between page unmap and page move, and now the target page is locked and refcount is 1. Currently, there is another stress-ng thread performing memory hotplug, attempting to offline the target page that is being migrated. It discovers that the refcount of this target page is 1, preventing the offline operation, thus proceeding to dump the page. However, page_mapping() of the target page may return an incorrect file mapping to crash the system in dump_mapping(), since the target page->mapping only saves 'anon_vma' pointer without setting PAGE_MAPPING_ANON flag. The page migration issue has been fixed by commit d1adb25df711 ("mm: migrate: fix getting incorrect page mapping during page migration"). In addition, Matthew suggested we should also improve dump_mapping()'s robustness to resilient against the kernel crash [1]. With checking the 'dentry.parent' and 'dentry.d_name.name' used by dentry_name(), I can see dump_mapping() will output the invalid dentry instead of crashing the system when this issue is reproduced again. [12211.189128] page:fffff7de047741c0 refcount:1 mapcount:0 mapping:ffff989117f55ea0 index:0x1 pfn:0x211dd07 [12211.189144] aops:0x0 ino:1 invalid dentry:74786574206e6870 [12211.189148] flags: 0x57ffffc0000001(locked|node=1|zone=2|lastcpupid=0x1fffff) [12211.189150] page_type: 0xffffffff() [12211.189153] raw: 0057ffffc0000001 0000000000000000 dead000000000122 ffff989117f55ea0 [12211.189154] raw: 0000000000000001 0000000000000001 00000001ffffffff 0000000000000000 [12211.189155] page dumped because: unmovable page [1] https://lore.kernel.org/all/ZXxn%2F0oixJxxAnpF@casper.infradead.org/ Suggested-by: Matthew Wilcox <willy(a)infradead.org> Signed-off-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Link: https://lore.kernel.org/r/937ab1f87328516821d39be672b6bc18861d9d3e.17053914… Signed-off-by: Christian Brauner <brauner(a)kernel.org> Conflicts: fs/inode.c mm/debug.c [Prior cleanup commit 3e9d80a891df is not merged.] Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> --- mm/debug.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/debug.c b/mm/debug.c index 8a40b3fefbeb..6ead410ec389 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -150,7 +150,8 @@ void __dump_page(struct page *page, const char *reason) } dentry_ptr = container_of(dentry_first, struct dentry, d_u.d_alias); - if (get_kernel_nofault(dentry, dentry_ptr)) { + if (get_kernel_nofault(dentry, dentry_ptr) || + !dentry.d_parent || !dentry.d_name.name) { pr_warn("aops:%ps ino:%lx with invalid dentry %px\n", a_ops, ino, dentry_ptr); } else { -- 2.25.1

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[PATCH OLK-6.6 0/1] CVE-2024-39478
by Chen Ridong 12 Jul '24

12 Jul '24

*** BLURB HERE *** Jia Jie Ho (1): crypto: starfive - Do not free stack buffer drivers/crypto/starfive/jh7110-rsa.c | 1 - 1 file changed, 1 deletion(-) -- 2.34.1

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[PATCH OLK-6.6] gfs2: Fix potential glock use-after-free on unmount
by Zeng Heng 12 Jul '24

12 Jul '24

From: Andreas Gruenbacher <agruenba(a)redhat.com> stable inclusion from stable-v6.6.33 commit 0636b34b44589b142700ac137b5f69802cfe2e37 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA74DQ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d98779e687726d8f8860f1c54b5687eec5f63a73 ] When a DLM lockspace is released and there ares still locks in that lockspace, DLM will unlock those locks automatically. Commit fb6791d100d1b started exploiting this behavior to speed up filesystem unmount: gfs2 would simply free glocks it didn't want to unlock and then release the lockspace. This didn't take the bast callbacks for asynchronous lock contention notifications into account, which remain active until until a lock is unlocked or its lockspace is released. To prevent those callbacks from accessing deallocated objects, put the glocks that should not be unlocked on the sd_dead_glocks list, release the lockspace, and only then free those glocks. As an additional measure, ignore unexpected ast and bast callbacks if the receiving glock is dead. Fixes: fb6791d100d1b ("GFS2: skip dlm_unlock calls in unmount") Signed-off-by: Andreas Gruenbacher <agruenba(a)redhat.com> Cc: David Teigland <teigland(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: fs/gfs2/glock.c fs/gfs2/glock.h [Resolve conflicts due to several refactor patches not merged.] Signed-off-by: Zeng Heng <zengheng4(a)huawei.com> --- fs/gfs2/glock.c | 39 ++++++++++++++++++++++++++++++++++----- fs/gfs2/glock.h | 3 ++- fs/gfs2/incore.h | 1 + fs/gfs2/lock_dlm.c | 32 ++++++++++++++++++++++---------- fs/gfs2/ops_fstype.c | 1 + fs/gfs2/super.c | 3 --- 6 files changed, 60 insertions(+), 19 deletions(-) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 4a280be229a6..7739e6198d75 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -166,19 +166,46 @@ static bool glock_blocked_by_withdraw(struct gfs2_glock *gl) return true; } -void gfs2_glock_free(struct gfs2_glock *gl) +static void __gfs2_glock_free(struct gfs2_glock *gl) { - struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; - gfs2_glock_assert_withdraw(gl, atomic_read(&gl->gl_revokes) == 0); rhashtable_remove_fast(&gl_hash_table, &gl->gl_node, ht_parms); smp_mb(); wake_up_glock(gl); call_rcu(&gl->gl_rcu, gfs2_glock_dealloc); +} + +void gfs2_glock_free(struct gfs2_glock *gl) { + struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; + + __gfs2_glock_free(gl); if (atomic_dec_and_test(&sdp->sd_glock_disposal)) wake_up(&sdp->sd_kill_wait); } +void gfs2_glock_free_later(struct gfs2_glock *gl) { + struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; + + spin_lock(&lru_lock); + list_add(&gl->gl_lru, &sdp->sd_dead_glocks); + spin_unlock(&lru_lock); + if (atomic_dec_and_test(&sdp->sd_glock_disposal)) + wake_up(&sdp->sd_kill_wait); +} + +static void gfs2_free_dead_glocks(struct gfs2_sbd *sdp) +{ + struct list_head *list = &sdp->sd_dead_glocks; + + while(!list_empty(list)) { + struct gfs2_glock *gl; + + gl = list_first_entry(list, struct gfs2_glock, gl_lru); + list_del_init(&gl->gl_lru); + __gfs2_glock_free(gl); + } +} + /** * gfs2_glock_hold() - increment reference count on glock * @gl: The glock to hold @@ -467,7 +494,7 @@ int gfs2_instantiate(struct gfs2_holder *gh) /** * do_promote - promote as many requests as possible on the current queue * @gl: The glock - * + * * Returns true on success (i.e., progress was made or there are no waiters). */ @@ -1468,7 +1495,7 @@ static inline bool pid_is_meaningful(const struct gfs2_holder *gh) * Eventually we should move the recursive locking trap to a * debugging option or something like that. This is the fast * path and needs to have the minimum number of distractions. - * + * */ static inline void add_to_queue(struct gfs2_holder *gh) @@ -2193,6 +2220,8 @@ void gfs2_gl_hash_clear(struct gfs2_sbd *sdp) wait_event_timeout(sdp->sd_kill_wait, atomic_read(&sdp->sd_glock_disposal) == 0, HZ * 600); + gfs2_lm_unmount(sdp); + gfs2_free_dead_glocks(sdp); glock_hash_walk(dump_glock_func, sdp); } diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h index c8685ca7d2a2..a5d793026de8 100644 --- a/fs/gfs2/glock.h +++ b/fs/gfs2/glock.h @@ -84,7 +84,7 @@ enum { #define GL_SKIP 0x0100 #define GL_NOPID 0x0200 #define GL_NOCACHE 0x0400 - + /* * lm_async_cb return flags * @@ -266,6 +266,7 @@ extern void gfs2_gl_dq_holders(struct gfs2_sbd *sdp); extern void gfs2_glock_thaw(struct gfs2_sbd *sdp); extern void gfs2_glock_add_to_lru(struct gfs2_glock *gl); extern void gfs2_glock_free(struct gfs2_glock *gl); +extern void gfs2_glock_free_later(struct gfs2_glock *gl); extern int __init gfs2_glock_init(void); extern void gfs2_glock_exit(void); diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index a8c95c5293c6..d364daa87c81 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -838,6 +838,7 @@ struct gfs2_sbd { /* For quiescing the filesystem */ struct gfs2_holder sd_freeze_gh; struct mutex sd_freeze_mutex; + struct list_head sd_dead_glocks; char sd_fsname[GFS2_FSNAME_LEN + 3 * sizeof(int) + 2]; char sd_table_name[GFS2_FSNAME_LEN]; diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index 59ab18c79889..0bde45fb4963 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -121,6 +121,11 @@ static void gdlm_ast(void *arg) struct gfs2_glock *gl = arg; unsigned ret = gl->gl_state; + /* If the glock is dead, we only react to a dlm_unlock() reply. */ + if (__lockref_is_dead(&gl->gl_lockref) && + gl->gl_lksb.sb_status != -DLM_EUNLOCK) + return; + gfs2_update_reply_times(gl); BUG_ON(gl->gl_lksb.sb_flags & DLM_SBF_DEMOTED); @@ -171,6 +176,9 @@ static void gdlm_bast(void *arg, int mode) { struct gfs2_glock *gl = arg; + if (__lockref_is_dead(&gl->gl_lockref)) + return; + switch (mode) { case DLM_LOCK_EX: gfs2_glock_cb(gl, LM_ST_UNLOCKED); @@ -291,8 +299,12 @@ static void gdlm_put_lock(struct gfs2_glock *gl) struct lm_lockstruct *ls = &sdp->sd_lockstruct; int error; - if (gl->gl_lksb.sb_lkid == 0) - goto out_free; + BUG_ON(!__lockref_is_dead(&gl->gl_lockref)); + + if (gl->gl_lksb.sb_lkid == 0) { + gfs2_glock_free(gl); + return; + } clear_bit(GLF_BLOCKING, &gl->gl_flags); gfs2_glstats_inc(gl, GFS2_LKS_DCOUNT); @@ -300,13 +312,17 @@ static void gdlm_put_lock(struct gfs2_glock *gl) gfs2_update_request_times(gl); /* don't want to call dlm if we've unmounted the lock protocol */ - if (test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) - goto out_free; + if (test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) { + gfs2_glock_free(gl); + return; + } /* don't want to skip dlm_unlock writing the lvb when lock has one */ if (test_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags) && - !gl->gl_lksb.sb_lvbptr) - goto out_free; + !gl->gl_lksb.sb_lvbptr) { + gfs2_glock_free_later(gl); + return; + } again: error = dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_VALBLK, @@ -321,10 +337,6 @@ static void gdlm_put_lock(struct gfs2_glock *gl) gl->gl_name.ln_type, (unsigned long long)gl->gl_name.ln_number, error); } - return; - -out_free: - gfs2_glock_free(gl); } static void gdlm_cancel(struct gfs2_glock *gl) diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index dd64140ae6d7..c5743f84a10d 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -136,6 +136,7 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) atomic_set(&sdp->sd_log_in_flight, 0); init_waitqueue_head(&sdp->sd_log_flush_wait); mutex_init(&sdp->sd_freeze_mutex); + INIT_LIST_HEAD(&sdp->sd_dead_glocks); return sdp; diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 5f4ebe279aaa..b590d435a6cb 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -646,10 +646,7 @@ static void gfs2_put_super(struct super_block *sb) gfs2_gl_hash_clear(sdp); truncate_inode_pages_final(&sdp->sd_aspace); gfs2_delete_debugfs_file(sdp); - /* Unmount the locking protocol */ - gfs2_lm_unmount(sdp); - /* At this point, we're through participating in the lockspace */ gfs2_sys_fs_del(sdp); free_sbd(sdp); } -- 2.25.1

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[PATCH OLK-6.6 V3 0/2] Fix xfs file creation issue
by Zizhi Wo 12 Jul '24

12 Jul '24

V3: Add a fix tag that was missing from the second patch. V2: Add a fix tag that was missing from the first patch. V1: Fix main problem. Zizhi Wo (2): Revert "xfs: Fix file creation failure" xfs: Avoid races with cnt_btree lastrec updates fs/xfs/libxfs/xfs_alloc.c | 125 +++++++++++++++++++++++++++++--- fs/xfs/libxfs/xfs_alloc_btree.c | 72 ------------------ fs/xfs/libxfs/xfs_btree.c | 51 ------------- fs/xfs/libxfs/xfs_btree.h | 19 +---- 4 files changed, 115 insertions(+), 152 deletions(-) -- 2.39.2

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[openeuler:OLK-5.10] BUILD SUCCESS 9bb2f255d4cf060692e6f5240ace43b12ac72246
by kernel test robot 12 Jul '24

12 Jul '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 9bb2f255d4cf060692e6f5240ace43b12ac72246 !9745 CVE-2024-39469 elapsed time: 732m configs tested: 34 configs skipped: 128 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig clang-19 arm64 allnoconfig gcc-14.1.0 arm64 randconfig-001-20240712 gcc-14.1.0 arm64 randconfig-002-20240712 gcc-14.1.0 arm64 randconfig-003-20240712 clang-19 arm64 randconfig-004-20240712 clang-17 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 buildonly-randconfig-001-20240712 clang-18 x86_64 buildonly-randconfig-002-20240712 clang-18 x86_64 buildonly-randconfig-003-20240712 clang-18 x86_64 buildonly-randconfig-004-20240712 clang-18 x86_64 buildonly-randconfig-005-20240712 clang-18 x86_64 buildonly-randconfig-006-20240712 clang-18 x86_64 defconfig gcc-13 x86_64 randconfig-001-20240712 gcc-12 x86_64 randconfig-002-20240712 gcc-13 x86_64 randconfig-003-20240712 gcc-12 x86_64 randconfig-004-20240712 clang-18 x86_64 randconfig-005-20240712 gcc-13 x86_64 randconfig-006-20240712 clang-18 x86_64 randconfig-011-20240712 clang-18 x86_64 randconfig-012-20240712 clang-18 x86_64 randconfig-013-20240712 clang-18 x86_64 randconfig-014-20240712 gcc-13 x86_64 randconfig-015-20240712 clang-18 x86_64 randconfig-016-20240712 clang-18 x86_64 randconfig-071-20240712 gcc-13 x86_64 randconfig-072-20240712 gcc-11 x86_64 randconfig-073-20240712 clang-18 x86_64 randconfig-074-20240712 gcc-9 x86_64 randconfig-075-20240712 clang-18 x86_64 randconfig-076-20240712 clang-18 x86_64 rhel-8.3-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 V2 0/2] Fix xfs file creation issue
by Zizhi Wo 12 Jul '24

12 Jul '24

V2: Add a fix tag that was missing from the first patch. V1: Fix main problem. Zizhi Wo (2): Revert "xfs: Fix file creation failure" xfs: Avoid races with cnt_btree lastrec updates fs/xfs/libxfs/xfs_alloc.c | 125 +++++++++++++++++++++++++++++--- fs/xfs/libxfs/xfs_alloc_btree.c | 72 ------------------ fs/xfs/libxfs/xfs_btree.c | 51 ------------- fs/xfs/libxfs/xfs_btree.h | 19 +---- 4 files changed, 115 insertions(+), 152 deletions(-) -- 2.39.2

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[openeuler:openEuler-1.0-LTS] BUILD SUCCESS 8585cfc057fe5efb77b4d3582604b16fdf4ccc09
by kernel test robot 12 Jul '24

12 Jul '24

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: 8585cfc057fe5efb77b4d3582604b16fdf4ccc09 !9858 khugepaged: fix null-pointer dereference due to race elapsed time: 736m configs tested: 30 configs skipped: 128 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig gcc-14.1.0 arm64 allnoconfig gcc-14.1.0 arm64 randconfig-001-20240712 gcc-14.1.0 arm64 randconfig-002-20240712 gcc-14.1.0 arm64 randconfig-003-20240712 gcc-14.1.0 arm64 randconfig-004-20240712 gcc-14.1.0 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 buildonly-randconfig-001-20240712 clang-18 x86_64 buildonly-randconfig-002-20240712 clang-18 x86_64 buildonly-randconfig-003-20240712 clang-18 x86_64 buildonly-randconfig-004-20240712 clang-18 x86_64 buildonly-randconfig-005-20240712 clang-18 x86_64 buildonly-randconfig-006-20240712 clang-18 x86_64 defconfig gcc-13 x86_64 randconfig-001-20240712 gcc-12 x86_64 randconfig-002-20240712 gcc-13 x86_64 randconfig-003-20240712 gcc-12 x86_64 randconfig-004-20240712 clang-18 x86_64 randconfig-005-20240712 gcc-13 x86_64 randconfig-006-20240712 clang-18 x86_64 randconfig-011-20240712 clang-18 x86_64 randconfig-012-20240712 clang-18 x86_64 randconfig-013-20240712 clang-18 x86_64 randconfig-014-20240712 gcc-13 x86_64 randconfig-015-20240712 clang-18 x86_64 randconfig-016-20240712 clang-18 x86_64 randconfig-071-20240712 gcc-13 x86_64 randconfig-072-20240712 gcc-11 x86_64 rhel-8.3-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3761/10661] arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:426:53: warning: 'kvmalloc_array' sizes specified with 'sizeof' in the earlier argument and not in the later argument
by kernel test robot 12 Jul '24

12 Jul '24

Hi Tianrui, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 15f539c4a521c5ae892554d0046e24f050ec0e00 commit: 07db411edd838080fb7c42b9f56bc08dd60d9af6 [3761/10661] LoongArch: KVM: Enable kvm config and add the makefile config: loongarch-randconfig-001-20240711 (https://download.01.org/0day-ci/archive/20240712/202407120630.mHZS1KSZ-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240712/202407120630.mHZS1KSZ-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202407120630.mHZS1KSZ-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/loongarch/kvm/../../../virt/kvm/kvm_main.c: In function '__kvm_mmu_topup_memory_cache': >> arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:426:53: warning: 'kvmalloc_array' sizes specified with 'sizeof' in the earlier argument and not in the later argument [-Wcalloc-transposed-args] 426 | mc->objects = kvmalloc_array(sizeof(void *), capacity, gfp); | ^~~~ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:426:53: note: earlier argument should specify number of elements, later size of each element vim +426 arch/loongarch/kvm/../../../virt/kvm/kvm_main.c 6926f95accee3f Sean Christopherson 2020-07-02 413 837f66c7120754 David Matlack 2022-06-22 414 int __kvm_mmu_topup_memory_cache(struct kvm_mmu_memory_cache *mc, int capacity, int min) 6926f95accee3f Sean Christopherson 2020-07-02 415 { 63f4b210414b65 Paolo Bonzini 2022-07-29 416 gfp_t gfp = mc->gfp_custom ? mc->gfp_custom : GFP_KERNEL_ACCOUNT; 6926f95accee3f Sean Christopherson 2020-07-02 417 void *obj; 6926f95accee3f Sean Christopherson 2020-07-02 418 6926f95accee3f Sean Christopherson 2020-07-02 419 if (mc->nobjs >= min) 6926f95accee3f Sean Christopherson 2020-07-02 420 return 0; 837f66c7120754 David Matlack 2022-06-22 421 837f66c7120754 David Matlack 2022-06-22 422 if (unlikely(!mc->objects)) { 837f66c7120754 David Matlack 2022-06-22 423 if (WARN_ON_ONCE(!capacity)) 837f66c7120754 David Matlack 2022-06-22 424 return -EIO; 837f66c7120754 David Matlack 2022-06-22 425 837f66c7120754 David Matlack 2022-06-22 @426 mc->objects = kvmalloc_array(sizeof(void *), capacity, gfp); 837f66c7120754 David Matlack 2022-06-22 427 if (!mc->objects) 837f66c7120754 David Matlack 2022-06-22 428 return -ENOMEM; 837f66c7120754 David Matlack 2022-06-22 429 837f66c7120754 David Matlack 2022-06-22 430 mc->capacity = capacity; 837f66c7120754 David Matlack 2022-06-22 431 } 837f66c7120754 David Matlack 2022-06-22 432 837f66c7120754 David Matlack 2022-06-22 433 /* It is illegal to request a different capacity across topups. */ 837f66c7120754 David Matlack 2022-06-22 434 if (WARN_ON_ONCE(mc->capacity != capacity)) 837f66c7120754 David Matlack 2022-06-22 435 return -EIO; 837f66c7120754 David Matlack 2022-06-22 436 837f66c7120754 David Matlack 2022-06-22 437 while (mc->nobjs < mc->capacity) { 837f66c7120754 David Matlack 2022-06-22 438 obj = mmu_memory_cache_alloc_obj(mc, gfp); 6926f95accee3f Sean Christopherson 2020-07-02 439 if (!obj) 6926f95accee3f Sean Christopherson 2020-07-02 440 return mc->nobjs >= min ? 0 : -ENOMEM; 6926f95accee3f Sean Christopherson 2020-07-02 441 mc->objects[mc->nobjs++] = obj; 6926f95accee3f Sean Christopherson 2020-07-02 442 } 6926f95accee3f Sean Christopherson 2020-07-02 443 return 0; 6926f95accee3f Sean Christopherson 2020-07-02 444 } 6926f95accee3f Sean Christopherson 2020-07-02 445 :::::: The code at line 426 was first introduced by commit :::::: 837f66c71207542283831d0762c5dca3db5b397a KVM: Allow for different capacities in kvm_mmu_memory_cache structs :::::: TO: David Matlack <dmatlack(a)google.com> :::::: CC: Paolo Bonzini <pbonzini(a)redhat.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6] BUILD REGRESSION 15f539c4a521c5ae892554d0046e24f050ec0e00
by kernel test robot 12 Jul '24

12 Jul '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: 15f539c4a521c5ae892554d0046e24f050ec0e00 !5260 [OLK-6.6] Support live migration for CSV/CSV2 guest, and support rebooting CSV/CSV2 guest Error/Warning reports: https://lore.kernel.org/oe-kbuild-all/202407120045.vP3mrDfe-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202407120236.foVeyRg9-lkp@intel.com Error/Warning: (recently discovered and may have been fixed) drivers/char/virtio_console.c:1460:63: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 9 [-Wformat-truncation=] loongarch64-linux-ld: ls2k500sfb.c:(.text+0x1030): undefined reference to `fg_console' ls2k500sfb.c:(.text+0x102c): undefined reference to `fg_console' Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | `-- clang:warning:no-such-include-directory:drivers-infiniband-hw-hiroce3-include-mag |-- arm64-randconfig-003-20240711 | `-- drivers-char-virtio_console.c:warning:u-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and `-- loongarch-randconfig-r133-20240711 |-- loongarch64-linux-ld:ls2k500sfb.c:(.text):undefined-reference-to-fg_console `-- ls2k500sfb.c:(.text):undefined-reference-to-fg_console elapsed time: 737m configs tested: 38 configs skipped: 107 tested configs: arm64 allmodconfig clang-19 arm64 allnoconfig gcc-14.1.0 arm64 randconfig-001-20240711 clang-19 arm64 randconfig-002-20240711 gcc-14.1.0 arm64 randconfig-003-20240711 gcc-14.1.0 arm64 randconfig-004-20240711 gcc-14.1.0 loongarch allmodconfig gcc-14.1.0 loongarch allnoconfig gcc-14.1.0 loongarch randconfig-001-20240711 gcc-14.1.0 loongarch randconfig-002-20240711 gcc-14.1.0 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 buildonly-randconfig-001-20240711 clang-18 x86_64 buildonly-randconfig-002-20240711 clang-18 x86_64 buildonly-randconfig-003-20240711 clang-18 x86_64 buildonly-randconfig-004-20240711 clang-18 x86_64 buildonly-randconfig-005-20240711 gcc-13 x86_64 buildonly-randconfig-006-20240711 gcc-13 x86_64 defconfig gcc-13 x86_64 randconfig-001-20240711 gcc-13 x86_64 randconfig-002-20240711 gcc-13 x86_64 randconfig-003-20240711 gcc-11 x86_64 randconfig-004-20240711 gcc-9 x86_64 randconfig-005-20240711 clang-18 x86_64 randconfig-006-20240711 gcc-13 x86_64 randconfig-011-20240711 gcc-13 x86_64 randconfig-012-20240711 clang-18 x86_64 randconfig-013-20240711 gcc-13 x86_64 randconfig-014-20240711 clang-18 x86_64 randconfig-015-20240711 clang-18 x86_64 randconfig-016-20240711 gcc-10 x86_64 randconfig-071-20240711 gcc-13 x86_64 randconfig-072-20240711 gcc-13 x86_64 randconfig-073-20240711 clang-18 x86_64 randconfig-074-20240711 gcc-13 x86_64 randconfig-075-20240711 clang-18 x86_64 randconfig-076-20240711 gcc-8 x86_64 rhel-8.3-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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