CVE-2021-4083
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.
Affected products
n/a · kernelReferences
https://bugzilla.redhat.com/show_bug.cgi?id=2029923https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=054aa8d439b9https://lists.debian.org/debian-lts-announce/2022/03/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlhttps://security.netapp.com/advisory/ntap-20220217-0005/https://www.debian.org/security/2022/dsa-5096https://www.oracle.com/security-alerts/cpujul2022.html