SB20250226289 - Use-after-free in Linux kernel core
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226289
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-2022-49093)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the skb_try_coalesce() function in net/core/skbuff.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1effe8ca4e34c34cdd9318436a4232dcb582ebf4
- https://git.kernel.org/stable/c/72bb856d16e883437023ff2ff77d0c498018728a
- https://git.kernel.org/stable/c/ba965e8605aee5387cecaa28fcf7ee9f61779a49
- https://git.kernel.org/stable/c/c4fa19615806a9a7e518c295b39175aa47a685ac
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20