CVE-2022-49426

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

iommu/arm-smmu-v3-sva: Fix mm use-after-free

We currently call arm64_mm_context_put() without holding a reference to the mm, which can result in use-after-free. Call mmgrab()/mmdrop() to ensure the mm only gets freed after we unpinned the ASID.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 32784a9562fb0518b12e9797ee2aec52214adf6f, < fc90f13ea0dcd960e5002d204fa55cec4e0db2fa; >= 32784a9562fb0518b12e9797ee2aec52214adf6f, < e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0; >= 32784a9562fb0518b12e9797ee2aec52214adf6f, < 9aa215450888cf29af0c479e14a712dc6b0c506c; >= 32784a9562fb0518b12e9797ee2aec52214adf6f, < cbd23144f7662b00bcde32a938c4a4057e476d68
LinuxLinux5.11

References

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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