What’s Vulnerable › Vulnerabilities
CVE-2022-41222
- Severity: high (CVSS 7.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2022-09-21 · updated 2026-10-14
- Weakness: CWE-416
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 products
- Canonical Ubuntu Linux: 18.04, 20.04, 22.04
- Debian Linux: 10.0
- Linux kernel: from 5.0 before 5.4.211; from 5.5 before 5.10.137; from 5.11 before 5.12.18; from 5.13 before 5.13.3 — fixed in 5.10.137, 5.12.18, 5.13.3, 5.4.211
- NetApp Hci Baseboard Management Controller: h300s, h410c, h410s, h500s, h700s
How to fix
Upgrade to a fixed version: Linux kernel 5.10.137, 5.12.18, 5.13.3, 5.4.211. Check the vendor advisory for mitigations.
References
- http://packetstormsecurity.com/files/168466/Linux-Stable-5.4-5.10-Use-After-Free-Race-Condition.html
- http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html
- 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=97113eb39fa7972722ff490b947d8af023e1f6a2
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://security.netapp.com/advisory/ntap-20230214-0008/
- http://packetstormsecurity.com/files/168466/Linux-Stable-5.4-5.10-Use-After-Free-Race-Condition.html
- http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html
- 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=97113eb39fa7972722ff490b947d8af023e1f6a2
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