cvedb.io
CVE-2021-4154
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2022-02-04T23:15:12.307 · Last modified 2026-06-17T04:19:07.547

Summary

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.

Affected products

linux — linux_kernel

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.