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CVE-2021-4083

Published: Jan 18, 2022

Modified: Aug 3, 2024

PUBLISHED

Description

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.

Vendor	Product	Versions
n/a	kernel	affected `kernel 5.16-rc4`

Weaknesses (CWE)

References

https://bugzilla.redhat.com/show_bug.cgi?id=2029923

x_refsource_MISC

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=054aa8d439b9

x_refsource_MISC

[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update

mailing-list

x_refsource_MLIST

[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update

mailing-list

x_refsource_MLIST

vendor-advisory

x_refsource_DEBIAN

https://www.oracle.com/security-alerts/cpujul2022.html

x_refsource_MISC

https://security.netapp.com/advisory/ntap-20220217-0005/

x_refsource_CONFIRM

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