Vulnerability Details : CVE-2021-47201
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.
Products affected by CVE-2021-47201
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-47201
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 16 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47201
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2025-03-27 |
References for CVE-2021-47201
-
https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1
iavf: free q_vectors before queues in iavf_disable_vf - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489e
iavf: free q_vectors before queues in iavf_disable_vf - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3f
iavf: free q_vectors before queues in iavf_disable_vf - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98c
iavf: free q_vectors before queues in iavf_disable_vf - kernel/git/stable/linux.git - Linux kernel stable treePatch
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