SB20250502131 - Use-after-free in Linux kernel trace
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502131
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-2022-49892)
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_shutdown() function in kernel/trace/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/0e792b89e6800cd9cb4757a76a96f7ef3e8b6294
- https://git.kernel.org/stable/c/88561a66777e7a2fe06638c6dcb22a9fae0b6733
- https://git.kernel.org/stable/c/cc1b9961a0ceb70f6ca4e2f4b8bb71c87c7a495c
- https://git.kernel.org/stable/c/ea5f2fd4640ecbb9df969bf8bb27733ae2183169
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.154