Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.13, < 5.4.162 |
References
- https://git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98cPatch
- https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1Patch
- https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489ePatch
- https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3fPatch
- https://git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98cPatch
- https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1Patch
- https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489ePatch
- https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3fPatch
FAQ
What is CVE-2021-47201?
CVE-2021-47201 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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_vect...
How severe is CVE-2021-47201?
CVE-2021-47201 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47201?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.