CVE-2022-49634
MEDIUM EPSS 7.1%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_minmax(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_dou8vec_minmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
7.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-362
Affected Products 8
References 4
- git.kernel.org https://git.kernel.org/stable/c/5f776daef0b5354615ec4b4234cd9539ca05f273
- git.kernel.org https://git.kernel.org/stable/c/7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18
- git.kernel.org https://git.kernel.org/stable/c/e58b02e445463065b4078bf621561da75197853f
- git.kernel.org https://git.kernel.org/stable/c/f177b382c33900d0e5a9766493c11a1074076f78
Remediation
- git.kernel.org https://git.kernel.org/stable/c/5f776daef0b5354615ec4b4234cd9539ca05f273
- git.kernel.org https://git.kernel.org/stable/c/7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18
- git.kernel.org https://git.kernel.org/stable/c/e58b02e445463065b4078bf621561da75197853f
- git.kernel.org https://git.kernel.org/stable/c/f177b382c33900d0e5a9766493c11a1074076f78