CVEvulnerability
CVE-2021-47164
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2024-03-25
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
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.
Affected configurations
• linux linux kernel (>= 5.8 < 5.10.42)
• linux linux kernel (>= 5.11 < 5.12.9)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587 Patch
- https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55 Patch
- https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d Patch
- https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587 Patch
- https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55 Patch
- https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d Patch