CVE-2025-39853
HIGH severity · CVSS 7.1 · Out-of-bounds read
7.1CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcdPatch
- https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5dPatch
- https://git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddfPatch
- https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560bPatch
- https://git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8Patch
- https://git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9Patch
- https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7Patch
- https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515Patch