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CVE-2025-40342

HIGHCVSS 8.8/10EPSS 0.21%

Last modified

CVE-2025-40342 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: nvme-fc: use lock accessing port_state and rport state nvme_fc_unregister_remote removes the remote port on a lport object at any point in time when there is no active association. This races with with the reconnect logic, because nvme_fc_create_association is not taking a lock to check the port_state and atomically increase the active count on the rport.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: nvme-fc: use lock accessing port_state and rport state nvme_fc_unregister_remote removes the remote port on a lport object at any point in time when there is no active association. This races with with the reconnect logic, because nvme_fc_create_association is not taking a lock to check the port_state and atomically increase the active count on the rport.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.21%

11.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= e399441de9115cd472b8ace6c517708273ca7997, < de3d91af47bc015031e7721b100a29989f6498a5; >= e399441de9115cd472b8ace6c517708273ca7997, < e8cde03de8674b05f2c5e0870729049eba517800; >= e399441de9115cd472b8ace6c517708273ca7997, < 4253e0a4546138a2bf9cb6acf66b32fee677fc7c; >= e399441de9115cd472b8ace6c517708273ca7997, < 25f4bf1f7979a7871974fd36c79d69ff1cf4b446; >= e399441de9115cd472b8ace6c517708273ca7997, < 9950af4303942081dc8c7a5fdc3688c17c7eb6c0; >= e399441de9115cd472b8ace6c517708273ca7997, < a2f7fa75c4a2a07328fa22ccbef461db76790b55; >= e399441de9115cd472b8ace6c517708273ca7997, < 891cdbb162ccdb079cd5228ae43bdeebce8597ad
LinuxLinux4.10

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-40342?
In the Linux kernel, the following vulnerability has been resolved: nvme-fc: use lock accessing port_state and rport state nvme_fc_unregister_remote removes the remote port on a lport object at any point in time when there is no active association. This races with with the reconnect logic, because nvme_fc_create_association is not taking a lock to check the port_state and atomically increase the active count on the rport.
How severe is CVE-2025-40342?
CVE-2025-40342 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2025-40342?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST