Detections
Analytics
CVE-2021-20321
medium
Description
A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.
References
https://www.debian.org/security/2022/dsa-5096
https://lore.kernel.org/all/20211011134508.748956131%40linuxfoundation.org/
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html