- Kernel - mailweb.openeuler.org

[PATCH openEuler-1.0-LTS] hfsplus: don't query the device logical block size multiple times
by Chen Zhongjin 07 Mar '25

07 Mar '25

From: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> stable inclusion from stable-v4.19.325 commit baccb5e12577b7a9eff54ffba301fdaa0f3ee5a8 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBEADN CVE: CVE-2024-56548 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… 66090815a24ce14cf51ef5453fc0218fe8a39bc2 -------------------------------- [ Upstream commit 1c82587cb57687de3f18ab4b98a8850c789bedcf ] Devices block sizes may change. One of these cases is a loop device by using ioctl LOOP_SET_BLOCK_SIZE. While this may cause other issues like IO being rejected, in the case of hfsplus, it will allocate a block by using that size and potentially write out-of-bounds when hfsplus_read_wrapper calls hfsplus_submit_bio and the latter function reads a different io_size. Using a new min_io_size initally set to sb_min_blocksize works for the purposes of the original fix, since it will be set to the max between HFSPLUS_SECTOR_SIZE and the first seen logical block size. We still use the max between HFSPLUS_SECTOR_SIZE and min_io_size in case the latter is not initialized. Tested by mounting an hfsplus filesystem with loop block sizes 512, 1024 and 4096. The produced KASAN report before the fix looks like this: [ 419.944641] ================================================================== [ 419.945655] BUG: KASAN: slab-use-after-free in hfsplus_read_wrapper+0x659/0xa0a [ 419.946703] Read of size 2 at addr ffff88800721fc00 by task repro/10678 [ 419.947612] [ 419.947846] CPU: 0 UID: 0 PID: 10678 Comm: repro Not tainted 6.12.0-rc5-00008-gdf56e0f2f3ca #84 [ 419.949007] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 419.950035] Call Trace: [ 419.950384] <TASK> [ 419.950676] dump_stack_lvl+0x57/0x78 [ 419.951212] ? hfsplus_read_wrapper+0x659/0xa0a [ 419.951830] print_report+0x14c/0x49e [ 419.952361] ? __virt_addr_valid+0x267/0x278 [ 419.952979] ? kmem_cache_debug_flags+0xc/0x1d [ 419.953561] ? hfsplus_read_wrapper+0x659/0xa0a [ 419.954231] kasan_report+0x89/0xb0 [ 419.954748] ? hfsplus_read_wrapper+0x659/0xa0a [ 419.955367] hfsplus_read_wrapper+0x659/0xa0a [ 419.955948] ? __pfx_hfsplus_read_wrapper+0x10/0x10 [ 419.956618] ? do_raw_spin_unlock+0x59/0x1a9 [ 419.957214] ? _raw_spin_unlock+0x1a/0x2e [ 419.957772] hfsplus_fill_super+0x348/0x1590 [ 419.958355] ? hlock_class+0x4c/0x109 [ 419.958867] ? __pfx_hfsplus_fill_super+0x10/0x10 [ 419.959499] ? __pfx_string+0x10/0x10 [ 419.960006] ? lock_acquire+0x3e2/0x454 [ 419.960532] ? bdev_name.constprop.0+0xce/0x243 [ 419.961129] ? __pfx_bdev_name.constprop.0+0x10/0x10 [ 419.961799] ? pointer+0x3f0/0x62f [ 419.962277] ? __pfx_pointer+0x10/0x10 [ 419.962761] ? vsnprintf+0x6c4/0xfba [ 419.963178] ? __pfx_vsnprintf+0x10/0x10 [ 419.963621] ? setup_bdev_super+0x376/0x3b3 [ 419.964029] ? snprintf+0x9d/0xd2 [ 419.964344] ? __pfx_snprintf+0x10/0x10 [ 419.964675] ? lock_acquired+0x45c/0x5e9 [ 419.965016] ? set_blocksize+0x139/0x1c1 [ 419.965381] ? sb_set_blocksize+0x6d/0xae [ 419.965742] ? __pfx_hfsplus_fill_super+0x10/0x10 [ 419.966179] mount_bdev+0x12f/0x1bf [ 419.966512] ? __pfx_mount_bdev+0x10/0x10 [ 419.966886] ? vfs_parse_fs_string+0xce/0x111 [ 419.967293] ? __pfx_vfs_parse_fs_string+0x10/0x10 [ 419.967702] ? __pfx_hfsplus_mount+0x10/0x10 [ 419.968073] legacy_get_tree+0x104/0x178 [ 419.968414] vfs_get_tree+0x86/0x296 [ 419.968751] path_mount+0xba3/0xd0b [ 419.969157] ? __pfx_path_mount+0x10/0x10 [ 419.969594] ? kmem_cache_free+0x1e2/0x260 [ 419.970311] do_mount+0x99/0xe0 [ 419.970630] ? __pfx_do_mount+0x10/0x10 [ 419.971008] __do_sys_mount+0x199/0x1c9 [ 419.971397] do_syscall_64+0xd0/0x135 [ 419.971761] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 419.972233] RIP: 0033:0x7c3cb812972e [ 419.972564] Code: 48 8b 0d f5 46 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c2 46 0d 00 f7 d8 64 89 01 48 [ 419.974371] RSP: 002b:00007ffe30632548 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 419.975048] RAX: ffffffffffffffda RBX: 00007ffe306328d8 RCX: 00007c3cb812972e [ 419.975701] RDX: 0000000020000000 RSI: 0000000020000c80 RDI: 00007ffe306325d0 [ 419.976363] RBP: 00007ffe30632720 R08: 00007ffe30632610 R09: 0000000000000000 [ 419.977034] R10: 0000000000200008 R11: 0000000000000286 R12: 0000000000000000 [ 419.977713] R13: 00007ffe306328e8 R14: 00005a0eb298bc68 R15: 00007c3cb8356000 [ 419.978375] </TASK> [ 419.978589] Fixes: 6596528e391a ("hfsplus: ensure bio requests are not smaller than the hardware sectors") Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> Link: https://lore.kernel.org/r/20241107114109.839253-1-cascardo@igalia.com Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- fs/hfsplus/hfsplus_fs.h | 3 ++- fs/hfsplus/wrapper.c | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index dd7ad9f13e3a..8454300825b9 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -156,6 +156,7 @@ struct hfsplus_sb_info { /* Runtime variables */ u32 blockoffset; + u32 min_io_size; sector_t part_start; sector_t sect_count; int fs_shift; @@ -304,7 +305,7 @@ struct hfsplus_readdir_data { */ static inline unsigned short hfsplus_min_io_size(struct super_block *sb) { - return max_t(unsigned short, bdev_logical_block_size(sb->s_bdev), + return max_t(unsigned short, HFSPLUS_SB(sb)->min_io_size, HFSPLUS_SECTOR_SIZE); } diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c index 08c1580bdf7a..eb76ba8e8fec 100644 --- a/fs/hfsplus/wrapper.c +++ b/fs/hfsplus/wrapper.c @@ -170,6 +170,8 @@ int hfsplus_read_wrapper(struct super_block *sb) if (!blocksize) goto out; + sbi->min_io_size = blocksize; + if (hfsplus_get_last_session(sb, &part_start, &part_size)) goto out; -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj
by Chen Zhongjin 07 Mar '25

07 Mar '25

From: Xin Xiong <xiongx18(a)fudan.edu.cn> stable inclusion from stable-v4.19.238 commit 72d77ddb2224ebc00648f4f78f8a9a259dccbdf7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP45K CVE: CVE-2022-49137 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [ Upstream commit dfced44f122c500004a48ecc8db516bb6a295a1b ] This issue takes place in an error path in amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into default case, the function simply returns -EINVAL, forgetting to decrement the reference count of a dma_fence obj, which is bumped earlier by amdgpu_cs_get_fence(). This may result in reference count leaks. Fix it by decreasing the refcount of specific object before returning the error code. Reviewed-by: Christian König <christian.koenig(a)amd.com> Signed-off-by: Xin Xiong <xiongx18(a)fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf(a)gmail.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index aa2731848c3a..d1554485f8e5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1469,6 +1469,7 @@ int amdgpu_cs_fence_to_handle_ioctl(struct drm_device *dev, void *data, return 0; default: + dma_fence_put(fence); return -EINVAL; } } -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] RDMA/hfi1: Prevent use of lock before it is initialized
by Chen Zhongjin 07 Mar '25

07 Mar '25

From: Douglas Miller <doug.miller(a)cornelisnetworks.com> stable inclusion from stable-v4.19.247 commit 66090815a24ce14cf51ef5453fc0218fe8a39bc2 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP6TA CVE: CVE-2022-49433 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [ Upstream commit 05c03dfd09c069c4ffd783b47b2da5dcc9421f2c ] If there is a failure during probe of hfi1 before the sdma_map_lock is initialized, the call to hfi1_free_devdata() will attempt to use a lock that has not been initialized. If the locking correctness validator is on then an INFO message and stack trace resembling the following may be seen: INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. Call Trace: register_lock_class+0x11b/0x880 __lock_acquire+0xf3/0x7930 lock_acquire+0xff/0x2d0 _raw_spin_lock_irq+0x46/0x60 sdma_clean+0x42a/0x660 [hfi1] hfi1_free_devdata+0x3a7/0x420 [hfi1] init_one+0x867/0x11a0 [hfi1] pci_device_probe+0x40e/0x8d0 The use of sdma_map_lock in sdma_clean() is for freeing the sdma_map memory, and sdma_map is not allocated/initialized until after sdma_map_lock has been initialized. This code only needs to be run if sdma_map is not NULL, and so checking for that condition will avoid trying to use the lock before it is initialized. Fixes: 473291b3ea0e ("IB/hfi1: Fix for early release of sdma context") Fixes: 7724105686e7 ("IB/hfi1: add driver files") Link: https://lore.kernel.org/r/20220520183701.48973.72434.stgit@awfm-01.cornelis… Reported-by: Zheyu Ma <zheyuma97(a)gmail.com> Signed-off-by: Douglas Miller <doug.miller(a)cornelisnetworks.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro(a)cornelisnetworks.com> Signed-off-by: Jason Gunthorpe <jgg(a)nvidia.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- drivers/infiniband/hw/hfi1/sdma.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c index 291c12f588b5..3866e42d998a 100644 --- a/drivers/infiniband/hw/hfi1/sdma.c +++ b/drivers/infiniband/hw/hfi1/sdma.c @@ -1313,11 +1313,13 @@ void sdma_clean(struct hfi1_devdata *dd, size_t num_engines) kvfree(sde->tx_ring); sde->tx_ring = NULL; } - spin_lock_irq(&dd->sde_map_lock); - sdma_map_free(rcu_access_pointer(dd->sdma_map)); - RCU_INIT_POINTER(dd->sdma_map, NULL); - spin_unlock_irq(&dd->sde_map_lock); - synchronize_rcu(); + if (rcu_access_pointer(dd->sdma_map)) { + spin_lock_irq(&dd->sde_map_lock); + sdma_map_free(rcu_access_pointer(dd->sdma_map)); + RCU_INIT_POINTER(dd->sdma_map, NULL); + spin_unlock_irq(&dd->sde_map_lock); + synchronize_rcu(); + } kfree(dd->per_sdma); dd->per_sdma = NULL; -- 2.25.1

2 1

[PATCH OLK-5.10] Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc
by Yang Yingliang 07 Mar '25

07 Mar '25

From: Fedor Pchelkin <pchelkin(a)ispras.ru> mainline inclusion from mainline-v6.14-rc1 commit 5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBPC5E CVE: CVE-2024-58009 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool. Fixes: 7c4f78cdb8e7 ("Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()") Cc: stable(a)vger.kernel.org Signed-off-by: Fedor Pchelkin <pchelkin(a)ispras.ru> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- net/bluetooth/l2cap_sock.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index c736aba98161..6537d0867fb3 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1864,7 +1864,8 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, chan = l2cap_chan_create(); if (!chan) { sk_free(sk); - sock->sk = NULL; + if (sock) + sock->sk = NULL; return NULL; } -- 2.25.1

2 1

[PATCH OLK-6.6 0/1] fix CVE-2024-57999
by Lin Yujun 07 Mar '25

07 Mar '25

Gaurav Batra (1): powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW arch/powerpc/kernel/iommu.c | 2 +- arch/powerpc/platforms/pseries/iommu.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6] clk: qcom: dispcc-sm6350: Add missing parent_map for a clock
by Yifan Qiao 07 Mar '25

07 Mar '25

From: Luca Weiss <luca.weiss(a)fairphone.com> mainline inclusion from mainline-v6.14-rc1 commit d4cdb196f182d2fbe336c968228be00d8c3fed05 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBRED1 CVE: CVE-2024-58080 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- If a clk_rcg2 has a parent, it should also have parent_map defined, otherwise we'll get a NULL pointer dereference when calling clk_set_rate like the following: [ 3.388105] Call trace: [ 3.390664] qcom_find_src_index+0x3c/0x70 (P) [ 3.395301] qcom_find_src_index+0x1c/0x70 (L) [ 3.399934] _freq_tbl_determine_rate+0x48/0x100 [ 3.404753] clk_rcg2_determine_rate+0x1c/0x28 [ 3.409387] clk_core_determine_round_nolock+0x58/0xe4 [ 3.421414] clk_core_round_rate_nolock+0x48/0xfc [ 3.432974] clk_core_round_rate_nolock+0xd0/0xfc [ 3.444483] clk_core_set_rate_nolock+0x8c/0x300 [ 3.455886] clk_set_rate+0x38/0x14c Add the parent_map property for the clock where it's missing and also un-inline the parent_data as well to keep the matching parent_map and parent_data together. Fixes: 837519775f1d ("clk: qcom: Add display clock controller driver for SM6350") Cc: stable(a)vger.kernel.org Signed-off-by: Luca Weiss <luca.weiss(a)fairphone.com> Reviewed-by: Konrad Dybcio <konrad.dybcio(a)oss.qualcomm.com> Link: https://lore.kernel.org/r/20241220-sm6350-parent_map-v1-2-64f3d04cb2eb@fair… Signed-off-by: Bjorn Andersson <andersson(a)kernel.org> Signed-off-by: Yifan Qiao <qiaoyifan4(a)huawei.com> --- drivers/clk/qcom/dispcc-sm6350.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/clk/qcom/dispcc-sm6350.c b/drivers/clk/qcom/dispcc-sm6350.c index 441f042f5ea4..ddacb4f76eca 100644 --- a/drivers/clk/qcom/dispcc-sm6350.c +++ b/drivers/clk/qcom/dispcc-sm6350.c @@ -187,13 +187,12 @@ static struct clk_rcg2 disp_cc_mdss_dp_aux_clk_src = { .cmd_rcgr = 0x1144, .mnd_width = 0, .hid_width = 5, + .parent_map = disp_cc_parent_map_6, .freq_tbl = ftbl_disp_cc_mdss_dp_aux_clk_src, .clkr.hw.init = &(struct clk_init_data){ .name = "disp_cc_mdss_dp_aux_clk_src", - .parent_data = &(const struct clk_parent_data){ - .fw_name = "bi_tcxo", - }, - .num_parents = 1, + .parent_data = disp_cc_parent_data_6, + .num_parents = ARRAY_SIZE(disp_cc_parent_data_6), .ops = &clk_rcg2_ops, }, }; -- 2.39.2

2 1

[PATCH openEuler-1.0-LTS 0/2] Ignore SB_RDONLY when mounting and remounting nfs
by Li Lingfeng 07 Mar '25

07 Mar '25

When NFS_MOUNT_UNSHARED is not set, NFS forces the sharing of a superblock among each filesystem that mounts sub-directories elonging to a single exported root path. To prevent interference between different filesystems, ignore SB_RDONLY when mounting and remounting nfs. Li Lingfeng (2): nfs: clear SB_RDONLY before getting superblock nfs: ignore SB_RDONLY when remounting nfs fs/nfs/super.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) -- 2.31.1

2 3

[openeuler:openEuler-1.0-LTS 1447/1447] kernel/sched/fair.c:6701:33: error: 'struct task_group' has no member named 'se'
by kernel test robot 07 Mar '25

07 Mar '25

Hi Hui, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 55990887ff37ac2fa796d5182eb2f462955a4d6e commit: 70a232a564cfa99401d197708cf380398ad5e2d7 [1447/1447] sched: Adjust wakeup cpu range according CPU util dynamicly config: arm64-randconfig-r064-20250307 (https://download.01.org/0day-ci/archive/20250307/202503071126.Eez53po7-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250307/202503071126.Eez53po7-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/202503071126.Eez53po7-lkp@intel.com/ All errors (new ones prefixed by >>): kernel/sched/fair.c:3675:6: warning: no previous prototype for 'sync_entity_load_avg' [-Wmissing-prototypes] 3675 | void sync_entity_load_avg(struct sched_entity *se) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/fair.c:3688:6: warning: no previous prototype for 'remove_entity_load_avg' [-Wmissing-prototypes] 3688 | void remove_entity_load_avg(struct sched_entity *se) | ^~~~~~~~~~~~~~~~~~~~~~ In file included from arch/arm64/include/asm/current.h:5, from include/linux/sched.h:12, from kernel/sched/sched.h:5, from kernel/sched/fair.c:23: kernel/sched/fair.c: In function 'set_task_select_cpus': >> kernel/sched/fair.c:6701:33: error: 'struct task_group' has no member named 'se' 6701 | if (unlikely(!tg->se[cpu])) | ^~ include/linux/compiler.h:77:45: note: in definition of macro 'unlikely' 77 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ kernel/sched/fair.c:6707:61: error: 'struct task_group' has no member named 'se' 6707 | spare = (long)(capacity_of(cpu) - tg->se[cpu]->avg.util_avg); | ^~ kernel/sched/fair.c:6720:35: error: 'struct task_group' has no member named 'se' 6720 | util_avg_sum += tg->se[cpu]->avg.util_avg; | ^~ kernel/sched/fair.c: In function 'select_task_rq_fair': kernel/sched/fair.c:6747:23: warning: variable 'time' set but not used [-Wunused-but-set-variable] 6747 | unsigned long time; | ^~~~ kernel/sched/fair.c: In function 'pick_next_task_fair': kernel/sched/fair.c:7291:23: warning: variable 'time' set but not used [-Wunused-but-set-variable] 7291 | unsigned long time; | ^~~~ In file included from include/linux/migrate.h:6, from kernel/sched/sched.h:52: include/linux/mempolicy.h: At top level: include/linux/mempolicy.h:329:13: warning: '__do_mbind' defined but not used [-Wunused-function] 329 | static long __do_mbind(unsigned long start, unsigned long len, | ^~~~~~~~~~ vim +6701 kernel/sched/fair.c 6670 6671 /* 6672 * set_task_select_cpus: select the cpu range for task 6673 * @p: the task whose available cpu range will to set 6674 * @idlest_cpu: the cpu which is the idlest in prefer cpus 6675 * 6676 * If sum of 'util_avg' among 'preferred_cpus' lower than the percentage 6677 * 'sysctl_sched_util_low_pct' of 'preferred_cpus' capacity, select 6678 * 'preferred_cpus' range for task, otherwise select 'preferred_cpus' for task. 6679 * 6680 * The available cpu range set to p->select_cpus. Idlest cpu in preferred cpus 6681 * set to @idlest_cpu, which is set to wakeup cpu when fast path wakeup cpu 6682 * without p->select_cpus. 6683 */ 6684 static void set_task_select_cpus(struct task_struct *p, int *idlest_cpu, 6685 int sd_flag) 6686 { 6687 unsigned long util_avg_sum = 0; 6688 unsigned long tg_capacity = 0; 6689 long min_util = INT_MIN; 6690 struct task_group *tg; 6691 long spare; 6692 int cpu; 6693 6694 p->select_cpus = &p->cpus_allowed; 6695 if (!prefer_cpus_valid(p)) 6696 return; 6697 6698 rcu_read_lock(); 6699 tg = task_group(p); 6700 for_each_cpu(cpu, p->prefer_cpus) { > 6701 if (unlikely(!tg->se[cpu])) 6702 continue; 6703 6704 if (idlest_cpu && available_idle_cpu(cpu)) { 6705 *idlest_cpu = cpu; 6706 } else if (idlest_cpu) { 6707 spare = (long)(capacity_of(cpu) - tg->se[cpu]->avg.util_avg); 6708 if (spare > min_util) { 6709 min_util = spare; 6710 *idlest_cpu = cpu; 6711 } 6712 } 6713 6714 if (available_idle_cpu(cpu)) { 6715 rcu_read_unlock(); 6716 p->select_cpus = p->prefer_cpus; 6717 return; 6718 } 6719 6720 util_avg_sum += tg->se[cpu]->avg.util_avg; 6721 tg_capacity += capacity_of(cpu); 6722 } 6723 rcu_read_unlock(); 6724 6725 if (tg_capacity > cpumask_weight(p->prefer_cpus) && 6726 util_avg_sum * 100 <= tg_capacity * sysctl_sched_util_low_pct) { 6727 p->select_cpus = p->prefer_cpus; 6728 } 6729 } 6730 #endif 6731 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup
by Huang Xiaojia 07 Mar '25

07 Mar '25

From: Miaoqian Lin <linmq006(a)gmail.com> stable inclusion from stable-v4.19.247 commit 5b8aa2ba38c010f47c965dd9bb5a8561813ed649 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP5WK CVE: CVE-2022-49439 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit fcee96924ba1596ca80a6770b2567ca546f9a482 ] of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: abc3aeae3aaa ("fsl-rio: Add two ports and rapidio message units support") Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/20220512123724.62931-1-linmq006@gmail.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Huang Xiaojia <huangxiaojia2(a)huawei.com> --- arch/powerpc/sysdev/fsl_rio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c index 5011ffea4e4b..c48ebe677962 100644 --- a/arch/powerpc/sysdev/fsl_rio.c +++ b/arch/powerpc/sysdev/fsl_rio.c @@ -509,8 +509,10 @@ int fsl_rio_setup(struct platform_device *dev) if (rc) { dev_err(&dev->dev, "Can't get %pOF property 'reg'\n", rmu_node); + of_node_put(rmu_node); goto err_rmu; } + of_node_put(rmu_node); rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs)); if (!rmu_regs_win) { dev_err(&dev->dev, "Unable to map rmu register window\n"); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] ARM: hisi: Add missing of_node_put after of_find_compatible_node
by Huang Xiaojia 07 Mar '25

07 Mar '25

From: Peng Wu <wupeng58(a)huawei.com> stable inclusion from stable-v4.19.247 commit dd4be8ecfb41a29e7c4e551b4e866157ce4a3429 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP6KO CVE: CVE-2022-49447 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 9bc72e47d4630d58a840a66a869c56b29554cfe4 ] of_find_compatible_node will increment the refcount of the returned device_node. Calling of_node_put() to avoid the refcount leak Signed-off-by: Peng Wu <wupeng58(a)huawei.com> Signed-off-by: Wei Xu <xuwei5(a)hisilicon.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Huang Xiaojia <huangxiaojia2(a)huawei.com> --- arch/arm/mach-hisi/platsmp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c index da5689ababf7..d7fbfb6d293d 100644 --- a/arch/arm/mach-hisi/platsmp.c +++ b/arch/arm/mach-hisi/platsmp.c @@ -70,14 +70,17 @@ static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) } ctrl_base = of_iomap(np, 0); if (!ctrl_base) { + of_node_put(np); pr_err("failed to map address\n"); return; } if (of_property_read_u32(np, "smp-offset", &offset) < 0) { + of_node_put(np); pr_err("failed to find smp-offset property\n"); return; } ctrl_base += offset; + of_node_put(np); } } @@ -163,6 +166,7 @@ static int hip01_boot_secondary(unsigned int cpu, struct task_struct *idle) if (WARN_ON(!node)) return -1; ctrl_base = of_iomap(node, 0); + of_node_put(node); /* set the secondary core boot from DDR */ remap_reg_value = readl_relaxed(ctrl_base + REG_SC_CTRL); -- 2.34.1

2 1