SB20251028140 - Input validation error in Linux kernel block driver
Published: October 28, 2025
Security Bulletin ID
SB20251028140
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) Input validation error (CVE-ID: CVE-2025-40080)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the nbd_get_socket() function in drivers/block/nbd.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/37ad11f20e164c23ce827dd455b42c0fdd29685c
- https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7
- https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71
- https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0
- https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960