SB2025052101 - Use-after-free in Linux kernel mm book3s64
Published: May 21, 2025 Updated: May 21, 2025
Security Bulletin ID
SB2025052101
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-2025-37922)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the radix__vmemmap_populate() function in arch/powerpc/mm/book3s64/radix_pgtable.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/400be767deaf31a073c6d14c5d151ae5ac2a60e2
- https://git.kernel.org/stable/c/7f5476d80f2cb364701cd1fa138a14b241ca99e9
- https://git.kernel.org/stable/c/9a8d4d7072d4df108479b1adc4b0840e96f6f61d
- https://git.kernel.org/stable/c/9cf7e13fecbab0894f6986fc6986ab2eba8de52e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.28
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.90