CVE-2021-47201

MEDIUM5.5

iavf: free q_vectors before queues in iavf_disable_vf

Published Apr 10, 2024

Modified 10 months ago

Details

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.

References

WEB

https://git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98c

WEB

https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1

WEB

https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489e

WEB

https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3f

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2021-47201

CVSS Analysis