CVE-2021-47201: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 4.13, before 5.4.162 (fixed in 5.4.162); from 5.5, before 5.10.82 (fixed in 5.10.82); from 5.11, before 5.15.5 (fixed in 5.15.5); version 5.16 only

Published 2024-04-10. Last modified 2026-08-04.