SB20250916297 - Race condition in Linux kernel rose
Published: September 16, 2025
Security Bulletin ID
SB20250916297
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition (CVE-ID: CVE-2025-39826)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the rose_timer_expiry() function in net/rose/rose_timer.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0085b250fcc79f900c82a69980ec2f3e1871823b
- https://git.kernel.org/stable/c/203e4f42596ede31498744018716a3db6dbb7f51
- https://git.kernel.org/stable/c/d860d1faa6b2ce3becfdb8b0c2b048ad31800061
- https://git.kernel.org/stable/c/f8c29fc437d03a98fb075c31c5be761cc8326284
- https://git.kernel.org/stable/c/fb07156cc0742ba4e93dfcc84280c011d05b301f