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CVEs-PoC/2021/CVE-2021-4154.md
2025-09-29 21:09:30 +02:00

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CVE-2021-4154

Description

A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.

POC

Reference

Github