Five privilege escalation flaws fixed in Linux Kernel

From securityaffairs.co

Experts found five vulnerabilities in the Linux kernel, tracked as CVE-2021-26708, that could lead to local privilege escalation.
Positive Technologies researcher Alexander Popov found five high severity vulnerabilities in the Linux kernel that could lead to local privilege escalation.
The Linux kernel vulnerabilities are race conditions that reside in AF_VSOCK implementation, they were implicitly introduced in November 2019 in the commits c0cfa2d8a788fcf4 and 6a2c0962105ae8ce that added VSOCK multi-transport support.

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