VYPR
Unrated severityNVD Advisory· Published Feb 26, 2025· Updated May 4, 2025

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

CVE-2022-49426

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.

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Affected products

85

Patches

Vulnerability mechanics

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