SB20250502219 - Improper locking in Linux kernel 9p
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502219
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-2022-49767)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the p9_fd_open() 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/0b5e6bd72b8171364616841603a70e4ba9837063
- https://git.kernel.org/stable/c/0e07032b4b4724b8ad1003698cb81083c1818999
- https://git.kernel.org/stable/c/5af16182c5639349415118e9e9aecd8355f7a08b
- https://git.kernel.org/stable/c/7abf40f06a76c0dff42eada10597917e9776fbd4
- https://git.kernel.org/stable/c/9f8554615df668e4bf83294633ee9d232b28ce45
- https://git.kernel.org/stable/c/a8e2fc8f7b41fa9d9ca5f624f4e4d34fce5b40a9
- https://git.kernel.org/stable/c/b1ad04da7fe4515e2ce2d5f2dcab3b5b6d45614b
- https://git.kernel.org/stable/c/ef575281b21e9a34dfae544a187c6aac2ae424a9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.300
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.267
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.334
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.156
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.80
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.225
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1