#VU104490 Use-after-free in Linux kernel - CVE-2022-49179
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104490
Vulnerability risk: Low
CVSSv4.0: 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-2022-49179
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the bfq_bfqq_move() function in block/bfq-cgroup.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/7507ead1e9d42957c2340f2c4a0e9d00034e3366
- https://git.kernel.org/stable/c/8410f70977734f21b8ed45c37e925d311dfda2e7
- https://git.kernel.org/stable/c/87fdfe8589d43e471dffb4c60f75eeb6f37afc4c
- https://git.kernel.org/stable/c/8f34dea99cd7761156a146a5258a67d045d862f7
- https://git.kernel.org/stable/c/c01fced8d38fbccc82787065229578006f28e020
- https://git.kernel.org/stable/c/c4f5a678add58a8a0e7ee5e038496b376ea6d205
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.189