CVE-2022-50496

HIGH EPSS 4.9%
Published Oct 4, 20258mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 4, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: dm cache: Fix UAF in destroy() Dm_cache also has the same UAF problem when dm_resume() and dm_destroy() are concurrent. Therefore, cancelling timer again in destroy().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
4.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.9  –  <4.9.337
linuxlinux_kernel*≥4.10  –  <4.14.303
linuxlinux_kernel*≥4.15  –  <4.19.270
linuxlinux_kernel*≥4.20  –  <5.4.229
linuxlinux_kernel*≥5.5  –  <5.10.163
linuxlinux_kernel*≥5.11  –  <5.15.87
linuxlinux_kernel*≥5.16  –  <6.0.18
linuxlinux_kernel*≥6.1  –  <6.1.4

References 9

  • git.kernel.org https://git.kernel.org/stable/c/034cbc8d3b47a56acd89453c29632a9c117de09d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b17026685a270b2beaf1cdd9857fcedd3505c7e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f097dfac7579fd84ff98eb1d3acd41d53a485f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d20032dd90664de09f2902a7ea49ae2f7771746
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a3e412c2ab131c54945327a7676b006f000a209
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a459d8edbdbe7b24db42a5a9f21e6aa9e00c2aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ac4f36910764cb510bafc4c3768544f86ca48ca
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/993406104d2b28fe470126a062ad37a1e21e792e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2a0b298ebf83ab6236f66788a3541e91ce75a70
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/034cbc8d3b47a56acd89453c29632a9c117de09d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b17026685a270b2beaf1cdd9857fcedd3505c7e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f097dfac7579fd84ff98eb1d3acd41d53a485f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d20032dd90664de09f2902a7ea49ae2f7771746
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a3e412c2ab131c54945327a7676b006f000a209
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a459d8edbdbe7b24db42a5a9f21e6aa9e00c2aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ac4f36910764cb510bafc4c3768544f86ca48ca
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/993406104d2b28fe470126a062ad37a1e21e792e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2a0b298ebf83ab6236f66788a3541e91ce75a70
    Patch