igb: Fix NULL pointer dereference in ethtool loopback test

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: igb: Fix NULL pointer dereference in ethtool loopback test The igb driver currently causes a NULL pointer dereference when executing the ethtool loopback test. This occurs because there is no associated q_vector for the test ring when it is set up, as interrupts are typically not added to the test rings. Since commit 5ef44b3cb43b removed the napi_id assignment in __xdp_rxq_info_reg(), there is no longer a need to pass a napi_id to it. Therefore, simply use 0 as the last parameter.

References

• https://git.kernel.org/stable/c/473be7d39efd3be383e9c0c8e44b53508b4ffeb5
• https://git.kernel.org/stable/c/75871a525a596ff4d16c4aebc0018f8d0923c9b1