SB2025122333 - Improper locking in Linux kernel atm driver
Published: December 23, 2025
Security Bulletin ID
SB2025122333
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2025-68339)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the fore200e_open() function in drivers/atm/fore200e.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1b60f42a639999c37da7f1fbfa1ad29cf4cbdd2d
- https://git.kernel.org/stable/c/6610361458e7eb6502dd3182f586f91fcc218039
- https://git.kernel.org/stable/c/667ac868823224374f819500adc5baa2889c7bc5
- https://git.kernel.org/stable/c/82fca3d8a4a34667f01ec2351a607135249c9cff
- https://git.kernel.org/stable/c/9917ba597cf95f307778e495f71ff25a5064d167
- https://git.kernel.org/stable/c/bd1415efbab507b9b995918105eef953013449dd
- https://git.kernel.org/stable/c/ed34c70d88e2b8b9bc6c3ede88751186d6c6d5d1