Vulnerabilities > CVE-2021-47164 - NULL Pointer Dereference vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587
- https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587
- https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55
- https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55
- https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d
- https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d