SB2025121663 - Use-after-free in Linux kernel ceph
Published: December 16, 2025
Security Bulletin ID
SB2025121663
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-2025-68285)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the monmap_show() and osdmap_show() functions in net/ceph/debugfs.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/05ec43e9a9de67132dc8cd3b22afef001574947f
- https://git.kernel.org/stable/c/076381c261374c587700b3accf410bdd2dba334e
- https://git.kernel.org/stable/c/183ad6e3b651e8fb0b66d6a2678f4b80bfbba092
- https://git.kernel.org/stable/c/3fc43120b22a3d4f1fbeff56a35ce2105b6a5683
- https://git.kernel.org/stable/c/7c8ccdc1714d9fabecd26e1be7db1771061acc6e
- https://git.kernel.org/stable/c/bb4910c5fd436701faf367e1b5476a5a6d2aff1c
- https://git.kernel.org/stable/c/e08021b3b56b2407f37b5fe47b654be80cc665fb