SB20250502218 - Improper locking in Linux kernel 9p
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502218
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-2022-49768)
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() function in net/9p/trans_fd.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/52f1c45dde9136f964d63a77d19826c8a74e2c7f
- https://git.kernel.org/stable/c/612c977f5d481f551d03d83d0aef588845c1300c
- https://git.kernel.org/stable/c/82825dbf393f7c7979d462f9609a15bde8092b3f
- https://git.kernel.org/stable/c/96760723aae1b45f733f702abb4333137143909f
- https://git.kernel.org/stable/c/a4f1a01b2e81378fce9ca528d4d8a049e4b58fcd
- https://git.kernel.org/stable/c/e3031280fe4eaf61a09e60823331f81f321be8e1
- https://git.kernel.org/stable/c/f14858bc77c567e089965962877ee726ffad0556
- https://git.kernel.org/stable/c/fec1406f5e7ab20b71f6d231792b0040e3300aaf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.267