SB20251208122 - Resource management error in Linux kernel 9p
Published: December 8, 2025
Security Bulletin ID
SB20251208122
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) Resource management error (CVE-ID: CVE-2025-40305)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the p9_poll_mux() and p9_fd_request() functions in net/9p/trans_fd.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.