Integer underflow in Linux kernel - CVE-2022-49646
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104793
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49646
CWE-ID: CWE-191
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the __ieee80211_select_queue() function in net/mac80211/wme.c. A local user can execute arbitrary code.
How to mitigate CVE-2022-49646
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/41ecab279a70dced9005f4d55fa0fcde8938603f
- https://git.kernel.org/stable/c/444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0
- https://git.kernel.org/stable/c/50e2ab39291947b6c6c7025cf01707c270fcde59
- https://git.kernel.org/stable/c/5a9df31017999197b6e60535940f2f2fe1bd3b0d
- https://git.kernel.org/stable/c/e013ea2a51a94b903b396a8dff531a07d470335d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.132