SB20250502217 - Improper locking in Linux kernel 9p
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502217
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-2022-49765)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the p9_conn_cancel(), p9_read_work(), p9_write_work(), p9_conn_create(), p9_fd_request(), p9_fd_cancel() and p9_fd_cancelled() 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.