SB20251210108 - Improper locking in Linux kernel nvme host driver
Published: December 10, 2025
Security Bulletin ID
SB20251210108
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-2025-40342)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nvme_fc_create_association() function in drivers/nvme/host/fc.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/25f4bf1f7979a7871974fd36c79d69ff1cf4b446
- https://git.kernel.org/stable/c/4253e0a4546138a2bf9cb6acf66b32fee677fc7c
- https://git.kernel.org/stable/c/891cdbb162ccdb079cd5228ae43bdeebce8597ad
- https://git.kernel.org/stable/c/9950af4303942081dc8c7a5fdc3688c17c7eb6c0
- https://git.kernel.org/stable/c/a2f7fa75c4a2a07328fa22ccbef461db76790b55
- https://git.kernel.org/stable/c/de3d91af47bc015031e7721b100a29989f6498a5
- https://git.kernel.org/stable/c/e8cde03de8674b05f2c5e0870729049eba517800