SB20250422187 - Input validation error in Linux kernel smb server
Published: April 22, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250422187
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) Input validation error (CVE-ID: CVE-2025-22042)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the parse_lease_state() function in fs/smb/server/oplock.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/60b7207893a8a06c78441934931a08fdad63f18e
- https://git.kernel.org/stable/c/629dd37acc336ad778979361c351e782053ea284
- https://git.kernel.org/stable/c/800c482c9ef5910f05e3a713943c67cc6c1d4939
- https://git.kernel.org/stable/c/9a1b6ea955e6c7b29939a6d98701202f9d9644ec
- https://git.kernel.org/stable/c/a41cd52f00907a040ca22c73d4805bb79b0d0972
- https://git.kernel.org/stable/c/bab703ed8472aa9d109c5f8c1863921533363dae
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.134
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.23
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.87