Vulnerability Details : CVE-2021-47184
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-47184
- 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:*:*:*:*:*:*:*:*
- 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-2021-47184
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 1 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47184
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 | 2025-01-14 |
CWE ids for CVE-2021-47184
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-47184
-
https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6
i40e: Fix NULL ptr dereference on VSI filter sync - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089
i40e: Fix NULL ptr dereference on VSI filter sync - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890
i40e: Fix NULL ptr dereference on VSI filter sync - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c
i40e: Fix NULL ptr dereference on VSI filter sync - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178
i40e: Fix NULL ptr dereference on VSI filter sync - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d
i40e: Fix NULL ptr dereference on VSI filter sync - kernel/git/stable/linux.git - Linux kernel stable treePatch
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