#VU115884 Use-after-free in Linux kernel - CVE-2023-53426
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115884
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53426
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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 repository.
External links
- 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