Security Vulnerabilities
- CVEs Published In February 2025
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix crash when mount with quota enabled
There is a reported crash when mounting ocfs2 with quota enabled.
RIP: 0010:ocfs2_qinfo_lock_res_init+0x44/0x50 [ocfs2]
Call Trace:
ocfs2_local_read_info+0xb9/0x6f0 [ocfs2]
dquot_load_quota_sb+0x216/0x470
dquot_load_quota_inode+0x85/0x100
ocfs2_enable_quotas+0xa0/0x1c0 [ocfs2]
ocfs2_fill_super.cold+0xc8/0x1bf [ocfs2]
mount_bdev+0x185/0x1b0
legacy_get_tree+0x27/0x40
vfs_get_tree+0x25/0xb0
path_mount+0x465/0xac0
__x64_sys_mount+0x103/0x140
It is caused by when initializing dqi_gqlock, the corresponding dqi_type
and dqi_sb are not properly initialized.
This issue is introduced by commit 6c85c2c72819, which wants to avoid
accessing uninitialized variables in error cases. So make global quota
info properly initialized.
In the Linux kernel, the following vulnerability has been resolved:
can: m_can: m_can_tx_handler(): fix use after free of skb
can_put_echo_skb() will clone skb then free the skb. Move the
can_put_echo_skb() for the m_can version 3.0.x directly before the
start of the xmit in hardware, similar to the 3.1.x branch.
In the Linux kernel, the following vulnerability has been resolved:
jffs2: fix memory leak in jffs2_scan_medium
If an error is returned in jffs2_scan_eraseblock() and some memory
has been added to the jffs2_summary *s, we can observe the following
kmemleak report:
--------------------------------------------
unreferenced object 0xffff88812b889c40 (size 64):
comm "mount", pid 692, jiffies 4294838325 (age 34.288s)
hex dump (first 32 bytes):
40 48 b5 14 81 88 ff ff 01 e0 31 00 00 00 50 00 @H........1...P.
00 00 01 00 00 00 01 00 00 00 02 00 00 00 09 08 ................
backtrace:
[<ffffffffae93a3a3>] __kmalloc+0x613/0x910
[<ffffffffaf423b9c>] jffs2_sum_add_dirent_mem+0x5c/0xa0
[<ffffffffb0f3afa8>] jffs2_scan_medium.cold+0x36e5/0x4794
[<ffffffffb0f3dbe1>] jffs2_do_mount_fs.cold+0xa7/0x2267
[<ffffffffaf40acf3>] jffs2_do_fill_super+0x383/0xc30
[<ffffffffaf40c00a>] jffs2_fill_super+0x2ea/0x4c0
[<ffffffffb0315d64>] mtd_get_sb+0x254/0x400
[<ffffffffb0315f5f>] mtd_get_sb_by_nr+0x4f/0xd0
[<ffffffffb0316478>] get_tree_mtd+0x498/0x840
[<ffffffffaf40bd15>] jffs2_get_tree+0x25/0x30
[<ffffffffae9f358d>] vfs_get_tree+0x8d/0x2e0
[<ffffffffaea7a98f>] path_mount+0x50f/0x1e50
[<ffffffffaea7c3d7>] do_mount+0x107/0x130
[<ffffffffaea7c5c5>] __se_sys_mount+0x1c5/0x2f0
[<ffffffffaea7c917>] __x64_sys_mount+0xc7/0x160
[<ffffffffb10142f5>] do_syscall_64+0x45/0x70
unreferenced object 0xffff888114b54840 (size 32):
comm "mount", pid 692, jiffies 4294838325 (age 34.288s)
hex dump (first 32 bytes):
c0 75 b5 14 81 88 ff ff 02 e0 02 00 00 00 02 00 .u..............
00 00 84 00 00 00 44 00 00 00 6b 6b 6b 6b 6b a5 ......D...kkkkk.
backtrace:
[<ffffffffae93be24>] kmem_cache_alloc_trace+0x584/0x880
[<ffffffffaf423b04>] jffs2_sum_add_inode_mem+0x54/0x90
[<ffffffffb0f3bd44>] jffs2_scan_medium.cold+0x4481/0x4794
[...]
unreferenced object 0xffff888114b57280 (size 32):
comm "mount", pid 692, jiffies 4294838393 (age 34.357s)
hex dump (first 32 bytes):
10 d5 6c 11 81 88 ff ff 08 e0 05 00 00 00 01 00 ..l.............
00 00 38 02 00 00 28 00 00 00 6b 6b 6b 6b 6b a5 ..8...(...kkkkk.
backtrace:
[<ffffffffae93be24>] kmem_cache_alloc_trace+0x584/0x880
[<ffffffffaf423c34>] jffs2_sum_add_xattr_mem+0x54/0x90
[<ffffffffb0f3a24f>] jffs2_scan_medium.cold+0x298c/0x4794
[...]
unreferenced object 0xffff8881116cd510 (size 16):
comm "mount", pid 692, jiffies 4294838395 (age 34.355s)
hex dump (first 16 bytes):
00 00 00 00 00 00 00 00 09 e0 60 02 00 00 6b a5 ..........`...k.
backtrace:
[<ffffffffae93be24>] kmem_cache_alloc_trace+0x584/0x880
[<ffffffffaf423cc4>] jffs2_sum_add_xref_mem+0x54/0x90
[<ffffffffb0f3b2e3>] jffs2_scan_medium.cold+0x3a20/0x4794
[...]
--------------------------------------------
Therefore, we should call jffs2_sum_reset_collected(s) on exit to
release the memory added in s. In addition, a new tag "out_buf" is
added to prevent the NULL pointer reference caused by s being NULL.
(thanks to Zhang Yi for this analysis)
In the Linux kernel, the following vulnerability has been resolved:
jffs2: fix memory leak in jffs2_do_mount_fs
If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error,
we can observe the following kmemleak report:
--------------------------------------------
unreferenced object 0xffff88811b25a640 (size 64):
comm "mount", pid 691, jiffies 4294957728 (age 71.952s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880
[<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130
[<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0
[<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30
[<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0
[...]
unreferenced object 0xffff88812c760000 (size 65536):
comm "mount", pid 691, jiffies 4294957728 (age 71.952s)
hex dump (first 32 bytes):
bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................
bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................
backtrace:
[<ffffffffa493a449>] __kmalloc+0x6b9/0x910
[<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130
[<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0
[<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30
[<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0
[...]
--------------------------------------------
This is because the resources allocated in jffs2_sum_init() are not
released. Call jffs2_sum_exit() to release these resources to solve
the problem.
In the Linux kernel, the following vulnerability has been resolved:
remoteproc: Fix count check in rproc_coredump_write()
Check count for 0, to avoid a potential underflow. Make the check the
same as the one in rproc_recovery_write().
In the Linux kernel, the following vulnerability has been resolved:
NFSD: prevent integer overflow on 32 bit systems
On a 32 bit system, the "len * sizeof(*p)" operation can have an
integer overflow.
In the Linux kernel, the following vulnerability has been resolved:
NFSD: prevent underflow in nfssvc_decode_writeargs()
Smatch complains:
fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs()
warn: no lower bound on 'args->len'
Change the type to unsigned to prevent this issue.
In the Linux kernel, the following vulnerability has been resolved:
cifs: fix handlecache and multiuser
In multiuser each individual user has their own tcon structure for the
share and thus their own handle for a cached directory.
When we umount such a share we much make sure to release the pinned down dentry
for each such tcon and not just the master tcon.
Otherwise we will get nasty warnings on umount that dentries are still in use:
[ 3459.590047] BUG: Dentry 00000000115c6f41{i=12000000019d95,n=/} still in use\
(2) [unmount of cifs cifs]
...
[ 3459.590492] Call Trace:
[ 3459.590500] d_walk+0x61/0x2a0
[ 3459.590518] ? shrink_lock_dentry.part.0+0xe0/0xe0
[ 3459.590526] shrink_dcache_for_umount+0x49/0x110
[ 3459.590535] generic_shutdown_super+0x1a/0x110
[ 3459.590542] kill_anon_super+0x14/0x30
[ 3459.590549] cifs_kill_sb+0xf5/0x104 [cifs]
[ 3459.590773] deactivate_locked_super+0x36/0xa0
[ 3459.590782] cleanup_mnt+0x131/0x190
[ 3459.590789] task_work_run+0x5c/0x90
[ 3459.590798] exit_to_user_mode_loop+0x151/0x160
[ 3459.590809] exit_to_user_mode_prepare+0x83/0xd0
[ 3459.590818] syscall_exit_to_user_mode+0x12/0x30
[ 3459.590828] do_syscall_64+0x48/0x90
[ 3459.590833] entry_SYSCALL_64_after_hwframe+0x44/0xae
In the Linux kernel, the following vulnerability has been resolved:
drm/i915/gem: add missing boundary check in vm_access
A missing bounds check in vm_access() can lead to an out-of-bounds read
or write in the adjacent memory area, since the len attribute is not
validated before the memcpy later in the function, potentially hitting:
[ 183.637831] BUG: unable to handle page fault for address: ffffc90000c86000
[ 183.637934] #PF: supervisor read access in kernel mode
[ 183.637997] #PF: error_code(0x0000) - not-present page
[ 183.638059] PGD 100000067 P4D 100000067 PUD 100258067 PMD 106341067 PTE 0
[ 183.638144] Oops: 0000 [#2] PREEMPT SMP NOPTI
[ 183.638201] CPU: 3 PID: 1790 Comm: poc Tainted: G D 5.17.0-rc6-ci-drm-11296+ #1
[ 183.638298] Hardware name: Intel Corporation CoffeeLake Client Platform/CoffeeLake H DDR4 RVP, BIOS CNLSFWR1.R00.X208.B00.1905301319 05/30/2019
[ 183.638430] RIP: 0010:memcpy_erms+0x6/0x10
[ 183.640213] RSP: 0018:ffffc90001763d48 EFLAGS: 00010246
[ 183.641117] RAX: ffff888109c14000 RBX: ffff888111bece40 RCX: 0000000000000ffc
[ 183.642029] RDX: 0000000000001000 RSI: ffffc90000c86000 RDI: ffff888109c14004
[ 183.642946] RBP: 0000000000000ffc R08: 800000000000016b R09: 0000000000000000
[ 183.643848] R10: ffffc90000c85000 R11: 0000000000000048 R12: 0000000000001000
[ 183.644742] R13: ffff888111bed190 R14: ffff888109c14000 R15: 0000000000001000
[ 183.645653] FS: 00007fe5ef807540(0000) GS:ffff88845b380000(0000) knlGS:0000000000000000
[ 183.646570] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 183.647481] CR2: ffffc90000c86000 CR3: 000000010ff02006 CR4: 00000000003706e0
[ 183.648384] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 183.649271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 183.650142] Call Trace:
[ 183.650988] <TASK>
[ 183.651793] vm_access+0x1f0/0x2a0 [i915]
[ 183.652726] __access_remote_vm+0x224/0x380
[ 183.653561] mem_rw.isra.0+0xf9/0x190
[ 183.654402] vfs_read+0x9d/0x1b0
[ 183.655238] ksys_read+0x63/0xe0
[ 183.656065] do_syscall_64+0x38/0xc0
[ 183.656882] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 183.657663] RIP: 0033:0x7fe5ef725142
[ 183.659351] RSP: 002b:00007ffe1e81c7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 183.660227] RAX: ffffffffffffffda RBX: 0000557055dfb780 RCX: 00007fe5ef725142
[ 183.661104] RDX: 0000000000001000 RSI: 00007ffe1e81d880 RDI: 0000000000000005
[ 183.661972] RBP: 00007ffe1e81e890 R08: 0000000000000030 R09: 0000000000000046
[ 183.662832] R10: 0000557055dfc2e0 R11: 0000000000000246 R12: 0000557055dfb1c0
[ 183.663691] R13: 00007ffe1e81e980 R14: 0000000000000000 R15: 0000000000000000
Changes since v1:
- Updated if condition with range_overflows_t [Chris Wilson]
[mauld: tidy up the commit message and add Cc: stable]
(cherry picked from commit 661412e301e2ca86799aa4f400d1cf0bd38c57c6)
In the Linux kernel, the following vulnerability has been resolved:
crypto: octeontx2 - remove CONFIG_DM_CRYPT check
No issues were found while using the driver with dm-crypt enabled. So
CONFIG_DM_CRYPT check in the driver can be removed.
This also fixes the NULL pointer dereference in driver release if
CONFIG_DM_CRYPT is enabled.
...
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
...
Call trace:
crypto_unregister_alg+0x68/0xfc
crypto_unregister_skciphers+0x44/0x60
otx2_cpt_crypto_exit+0x100/0x1a0
otx2_cptvf_remove+0xf8/0x200
pci_device_remove+0x3c/0xd4
__device_release_driver+0x188/0x234
device_release_driver+0x2c/0x4c
...