SB20251230151 - Use-after-free in Linux kernel btrfs
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230151
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-2023-54281)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the btrfs_search_path_in_tree_user() function in fs/btrfs/ioctl.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/380bbd46d61c894a8dcaace09e54bc7426d81014
- https://git.kernel.org/stable/c/50e385d98b2a52480836ea41c142b81eeeb277af
- https://git.kernel.org/stable/c/6fdce81e425be112f1ca129776f4041afeaad413
- https://git.kernel.org/stable/c/7390bb377b5fb3be23cb021e0f184d1f576be7d6
- https://git.kernel.org/stable/c/ee34a82e890a7babb5585daf1a6dd7d4d1cf142a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.197
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.133
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6