CVE-2021-47201 (GCVE-0-2021-47201)

Vulnerability from cvelistv5 – Published: 2024-04-10 18:56 – Updated: 2026-08-05 08:46
VLAI
Title
iavf: free q_vectors before queues in iavf_disable_vf
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-10 19:51 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 65c7006f234c9ede887d468f595f259a5c5cc552 , < 926e8c83d4c1c2dac0026637eb0d492df876489e (git)
Affected: 65c7006f234c9ede887d468f595f259a5c5cc552 , < 78638b47132244e3934dc5dc79f6372d5ce8e98c (git)
Affected: 65c7006f234c9ede887d468f595f259a5c5cc552 , < 9ef6589cac9a8c47f5544ccdf4c498093733bb3f (git)
Affected: 65c7006f234c9ede887d468f595f259a5c5cc552 , < 89f22f129696ab53cfbc608e0a2184d0fea46ac1 (git)
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Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 5.4.162 , ≤ 5.4.* (semver)
Unaffected: 5.10.82 , ≤ 5.10.* (semver)
Unaffected: 5.15.5 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
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}



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