Red Hat: CVE-2021-20321: In Overlayfs missing a check for a negative dentry before calling vfs_rename() (Multiple Advisories)
5
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
12/21/2021
12/23/2021
12/22/2021
03/13/2024
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.
Solution(s)
- redhat-upgrade-kernel
- redhat-upgrade-kernel-rt
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