SB20250916275 - Buffer overflow in Linux kernel block
Published: September 16, 2025
Security Bulletin ID
SB20250916275
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 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2025-39795)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the blk_stack_limits() function in block/blk-settings.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/14beeef4aafecc8a41de534e31fb5be94739392f
- https://git.kernel.org/stable/c/31f2f080898e50cbf2bae62d35f9f2a997547b38
- https://git.kernel.org/stable/c/3b9d69f0e68aa6b0acd9791c45d445154a8c66e9
- https://git.kernel.org/stable/c/418751910044649baa2b424ea31cce3fc4dcc253
- https://git.kernel.org/stable/c/448dfecc7ff807822ecd47a5c052acedca7d09e8
- https://git.kernel.org/stable/c/46aa80ef49594ed7de685ecbc673b291e9a2c159
- https://git.kernel.org/stable/c/5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2
- https://git.kernel.org/stable/c/8b3ce085b52e674290cbfdd07034e7653ffbe4dc