NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-rt-kvm Open this link in a new tab

The Centos security team deemed this advisory irrelevant for Centos:7.

Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

ixgbe: Fix NULL pointer dereference in ethtool loopback test

The ixgbe driver currently generates a NULL pointer dereference when performing the ethtool loopback test. This is due to the fact that there isn't a q_vector associated with the test ring when it is setup as interrupts are not normally added to the test rings.

To address this I have added code that will check for a q_vector before returning a napi_id value. If a q_vector is not present it will return a value of 0.

• https://access.redhat.com/security/cve/CVE-2021-46916
• https://git.kernel.org/stable/c/31166efb1cee348eb6314e9c0095d84cbeb66b9d
• https://git.kernel.org/stable/c/758d19098df4b0bbca9f40d6ae6c82c9c18b9bba