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Change History

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.

https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a

https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698

https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31

https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80