CVE-2026-23084
be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list
- State
- Published
- Severity
- Not scored
- Published
- Feb 4, 2026
- Updated
- Oct 19, 2026
- Reserved
- Jan 13, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list
When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is set to false, the driver may request the PMAC_ID from the firmware of the network card, and this function will store that PMAC_ID at the provided address pmac_id. This is the contract of this function.
However, there is a location within the driver where both pmac_id_valid == false and pmac_id == NULL are being passed. This could result in dereferencing a NULL pointer.
To resolve this issue, it is necessary to pass the address of a stub variable to the function.
Scores
The record has no CVSS score.
Weaknesses
- CWE-476 NULL Pointer Dereference
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344
- https://git.kernel.org/stable/c/92c6dc181a18e6e0ddb872ed35cb48a9274829e4
- https://git.kernel.org/stable/c/6c3e00888dbec887125a08b51a705b9b163fcdd1
- https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80
- https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698
- https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a
- https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
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