SB20250226310 - Use-after-free in Linux kernel ext4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226310
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-49174)
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.
References
- 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