CVE-2022-49277

MEDIUM EPSS 16.5%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
16.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥2.6.15  –  <4.9.311
linuxlinux_kernel*≥4.10  –  <4.14.276
linuxlinux_kernel*≥4.15  –  <4.19.238
linuxlinux_kernel*≥4.20  –  <5.4.189
linuxlinux_kernel*≥5.5  –  <5.10.110
linuxlinux_kernel*≥5.11  –  <5.15.33
linuxlinux_kernel*≥5.16  –  <5.16.19
linuxlinux_kernel*≥5.17  –  <5.17.2

References 9

  • git.kernel.org https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112
    Patch