SB20251210107 - Improper locking in Linux kernel nvme target driver
Published: December 10, 2025
Security Bulletin ID
SB20251210107
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-2025-40343)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nvmet_fc_delete_assoc_work() and nvmet_fc_delete_target_assoc() functions in drivers/nvme/target/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/04d17540ef51e2c291eb863ca87fd332259b2d40
- https://git.kernel.org/stable/c/2f4852db87e25d4e226b25cb6f652fef9504360e
- https://git.kernel.org/stable/c/601ed47b2363c24d948d7bac0c23abc8bd459570
- https://git.kernel.org/stable/c/85e2ce1920cb511d57aae59f0df6ff85b28bf04d
- https://git.kernel.org/stable/c/c09ac9a63fc3aaf4670ad7b5e4f5afd764424154
- https://git.kernel.org/stable/c/f2537be4f8421f6495edfa0bc284d722f253841d