CVE-2022-41222

Public Exploit

Description

mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.02%
Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 release notes vendor advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2347 exploit third party advisory mailing list issue tracking patch
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=97113eb39fa7972722ff490b947d8af023e1f6a2 vendor advisory patch
http://packetstormsecurity.com/files/168466/Linux-Stable-5.4-5.10-Use-After-Free-Race-Condition.html vdb entry third party advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html third party advisory mailing list
https://security.netapp.com/advisory/ntap-20230214-0008/ third party advisory
http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-41222?
CVE-2022-41222 has been scored as a high severity vulnerability.
How to fix CVE-2022-41222?
To fix CVE-2022-41222, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-41222 being actively exploited in the wild?
It is possible that CVE-2022-41222 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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