SB2025081856 - Buffer overflow in Linux kernel dma driver
Published: August 18, 2025
Security Bulletin ID
SB2025081856
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-2025-38538)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the nbpf_probe() function in drivers/dma/nbpfaxi.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/122160289adf8ebf15060f1cbf6265b55a914948
- https://git.kernel.org/stable/c/188c6ba1dd925849c5d94885c8bbdeb0b3dcf510
- https://git.kernel.org/stable/c/4bb016438335ec02b01f96bf1367378c2bfe03e5
- https://git.kernel.org/stable/c/d6bbd67ab5de37a74ac85c83c5a26664b62034dd
- https://git.kernel.org/stable/c/f366b36c5e3ce29c9a3c8eed3d1631908e4fc8bb