SB20250916206 - Improper locking in Linux kernel nubus driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916206
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-2023-53217)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nubus_proc_rsrc_show(), nubus_proc_add_rsrc_mem() and nubus_proc_add_rsrc() functions in drivers/nubus/proc.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/0e96647cff9224db564a1cee6efccb13dbe11ee2
- https://git.kernel.org/stable/c/67e3b5230cefed1eca470c460a2035f02986cebb
- https://git.kernel.org/stable/c/9877533e1401dbbb2c7da8badda05d196aa07623
- https://git.kernel.org/stable/c/a03f2f4bd49030f57849227be9ba38a3eb1edb61
- https://git.kernel.org/stable/c/c06edf13f4cf7f9e8ff4bc6f7e951e4f074dc105
- https://git.kernel.org/stable/c/f70407e8e0272e00d133c5e039168ff1bae6bcac
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188