CVE-2022-49277 Affecting kernel-64kb package, versions <5.14.21-150400.24.158.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES154-KERNEL64KB-9530802
- published27 Mar 2025
- disclosed26 Mar 2025
Introduced: 26 Mar 2025
NewCVE-2022-49277 (opens in a new tab)How to fix?
Upgrade SLES:15.4 kernel-64kb to version 5.14.21-150400.24.158.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-64kb package and not the kernel-64kb package as distributed by SLES.
See How to fix? for SLES:15.4 relevant fixed versions and status.
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.
References
- https://www.suse.com/security/cve/CVE-2022-49277.html
- https://bugzilla.suse.com/1238144
- https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9
- https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834
- https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88
- https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699
- https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca
- https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699
- https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af
- https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c
- https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112