#VU116751 Use-after-free in Linux kernel - CVE-2023-53645

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU116751

#VU116751 Use-after-free in Linux kernel - CVE-2023-53645

Published: October 8, 2025 / Updated: October 26, 2025


Vulnerability identifier: #VU116751
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-2023-53645
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
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 less() and rbtree_refcounted_node_ref_escapes() functions in tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's repository.

External links