#VU104493 Use-after-free in Linux kernel - CVE-2022-49174
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104493
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-2022-49174
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 ext4_mb_mark_bb() function in fs/ext4/mballoc.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/6a6beb074186a0452368a023a261c7d0eaebe838
- https://git.kernel.org/stable/c/803fb0e8240cc16585a5c9df76add1dfaa781773
- https://git.kernel.org/stable/c/b07eedd0222e9548ffc568ec429bb1f61d21a39c
- https://git.kernel.org/stable/c/bfdc502a4a4c058bf4cbb1df0c297761d528f54d
- https://git.kernel.org/stable/c/cd6d719534af993210306f8a13f9cb3e615f7c8d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.110