SB20250502124 - Use-after-free in Linux kernel
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502124
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-2022-49779)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the __unregister_kprobe_top() function in kernel/kprobes.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/55788ebbe8b365b4375bd56b4ba7db79d393a370
- https://git.kernel.org/stable/c/5dd7caf0bdc5d0bae7cf9776b4d739fb09bd5ebb
- https://git.kernel.org/stable/c/7b0007b28dd970176f2e297c06ae63eea2447127
- https://git.kernel.org/stable/c/7d606ae1abcc3eab5408e42444d789dc7def51b8
- https://git.kernel.org/stable/c/c49cc2c059b503e962c2f13a806c105f9b757df4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.80