SB2025102332 - Use-after-free in Linux kernel arm64 kernel
Published: October 23, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025102332
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-2022-50579)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ftrace_make_nop() function in arch/arm64/kernel/ftrace.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0f77b6b2ba70d7c9d69ef39694e283ded9f8b5f2
- https://git.kernel.org/stable/c/657de36c72f57fa172a66b06f826b3f5bc56f42e
- https://git.kernel.org/stable/c/6c93b683cedaef745884cb9d554d02ed6266b897
- https://git.kernel.org/stable/c/8cfb08575c6d4585f1ce0deeb189e5c824776b04
- https://git.kernel.org/stable/c/985432303cf7d4804fb2c2fdfbf0466a796d68c3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3