CVE-2022-49710

MEDIUM EPSS 18.2%
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: dm mirror log: round up region bitmap size to BITS_PER_LONG The code in dm-log rounds up bitset_size to 32 bits. It then uses find_next_zero_bit_le on the allocated region. find_next_zero_bit_le accesses the bitmap using unsigned long pointers. So, on 64-bit architectures, it may access 4 bytes beyond the allocated size. Fix this bug by rounding up bitset_size to BITS_PER_LONG. This bug was found by running the lvm2 testsuite with kasan.

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
18.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥2.6.18  –  <5.4.200
linuxlinux_kernel*≥5.5  –  <5.10.124
linuxlinux_kernel*≥5.11  –  <5.15.49
linuxlinux_kernel*≥5.16  –  <5.18.6
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36df
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36df
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13
    Patch