Vulnerability Details : CVE-2021-47164
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix null deref accessing lag dev
It could be the lag dev is null so stop processing the event.
In bond_enslave() the active/backup slave being set before setting the
upper dev so first event is without an upper dev.
After setting the upper dev with bond_master_upper_dev_link() there is
a second event and in that event we have an upper dev.
Products affected by CVE-2021-47164
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-47164
0.03%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 5 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47164
| 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 | 2024-05-23 |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
N/A
|
N/A
|
RedHat-CVE-2021-47164 | 2024-03-25 |
CWE ids for CVE-2021-47164
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-47164
-
https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587
net/mlx5e: Fix null deref accessing lag dev - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d
net/mlx5e: Fix null deref accessing lag dev - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55
net/mlx5e: Fix null deref accessing lag dev - kernel/git/stable/linux.git - Linux kernel stable treePatch
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