CVE-2022-41222

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.

Affected Platforms

Weakness Type

CWE-416, CWE-416

References

• http://packetstormsecurity.com/files/168466/Linux-Stable-5.4-5.10-Use-After-Free…
• http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LN…
• https://bugs.chromium.org/p/project-zero/issues/detail?id=2347
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=97113…
• https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html