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CVE-2022-41222

Good to know:

Date: September 20, 2022

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.

Language: C

Severity Score

7.0

Related Resources (12)

Url: https://bugs.chromium.org/p/project-zero/issues/detail?id=2347

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=97113eb39fa7972722ff490b947d8af023e1f6a2

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-41222

Url: https://security.netapp.com/advisory/ntap-20230214-0008/

Url: http://packetstormsecurity.com/files/168466/Linux-Stable-5.4-5.10-Use-After-Free-Race-Condition.html

Url: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3

Url: https://access.redhat.com/security/cve/CVE-2022-41222

Url: https://security-tracker.debian.org/tracker/CVE-2022-41222

Url: http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html

Url: https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2022-41222

Url: https://www.mend.io/vulnerability-database/CVE-2022-41222

Severity Score

7.0

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

Upgrade Version

Upgrade to version v5.4.211,v5.10.137,v5.12.18,v5.13.3

CVSS v3.1

Base Score:	7.0
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	HIGH
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

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