SB2025091961 - Use-after-free in Linux kernel xdp
Published: September 19, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091961
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-2023-53426)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the xsk_diag_fill() function in net/xdp/xsk_diag.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3e019d8a05a38abb5c85d4f1e85fda964610aa14
- https://git.kernel.org/stable/c/595931912357fa3507e522a7f8a0a76e423c23e4
- https://git.kernel.org/stable/c/5979985f2d6b565b6cf0f79a62670a2855c0e96c
- https://git.kernel.org/stable/c/6436973164ea5506a495f39e56be5aea375e7832
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.54