QID 198541

A race condition existed in the atheros ath9k wifi driver in the linux kernel.
The kvm hypervisor implementation in the linux kernel did not properly compute the access permissions for shadow pages in some situations.
The ext4 file system in the linux kernel contained a race condition when writing xattrs to an inode.
The 6pack network protocol driver in the linux kernel did not properly perform validation checks.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

an attacker could possibly use this to expose sensitive information (wifi network traffic) (cve-2020-3702).
A local attacker could use this to cause a denial of service. (
Cve-2021-38198).
A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (
Cve-2021-40490).
A privileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (
Cve-2021-42008).