CVE-2025-39853
i40e: Fix potential invalid access when MAC list is empty
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Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b
- https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d
- https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd
- https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7
- https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515
References (12)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- HIGH
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