CVE-2021-47201 Information

Description

In the Linux kernel the following vulnerability has been resolved:

iavf: free q_vectors before queues in iavf_disable_vf

iavf_free_queues() clears adapter->num_active_queues which iavf_free_q_vectors() relies on so swap the order of these two function calls in iavf_disable_vf(). This resolves a panic encountered when the interface is disabled and then later brought up again after PF communication is restored.

Reference

https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489e https://git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98c https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3f https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1