CVE-2021-47184

low-risk
Published 2024-04-10

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL ptr dereference on VSI filter sync Remove the reason of null pointer dereference in sync VSI filters. Added new I40E_VSI_RELEASING flag to signalize deleting and releasing of VSI resources to sync this thread with sync filters subtask. Without this patch it is possible to start update the VSI filter list after VSI is removed, that's causing a kernel oops.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Linux

References (12)

Patch https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6
Patch https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089
Patch https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d
Patch https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c
Patch https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890
Patch https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178
Patch https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6
Patch https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089
Patch https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d
Patch https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c
Patch https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890
Patch https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low