SB20250502152 - Use-after-free in Linux kernel ext4
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502152
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-2025-23150)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the do_split() function in fs/ext4/namei.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/16d9067f00e3a7d1df7c3aa9c20d214923d27e10
- https://git.kernel.org/stable/c/17df39f455f1289319d4d09e4826aa46852ffd17
- https://git.kernel.org/stable/c/2883e9e74f73f9265e5f8d1aaaa89034b308e433
- https://git.kernel.org/stable/c/2eeb1085bf7bd5c7ba796ca4119925fa5d336a3f
- https://git.kernel.org/stable/c/35d0aa6db9d93307085871ceab8a729594a98162
- https://git.kernel.org/stable/c/515c34cff899eb5dae6aa7eee01c1295b07d81af
- https://git.kernel.org/stable/c/94824ac9a8aaf2fb3c54b4bdde842db80ffa555d
- https://git.kernel.org/stable/c/ab0cc5c25552ae0d20eae94b40a93be11b080fc5
- https://git.kernel.org/stable/c/b96bd2c3db26ad0daec5b78c85c098b53900e2e1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.293