CVE-2026-45931

kernel: accel/amdxdna: Hold mm structure across iommu_sva_unbind_device()

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Severity

Moderate

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · May 27, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's accel/amdxdna module. This vulnerability occurs when the iommu_sva_unbind_device() function attempts to access a memory management (mm) structure after it has been deallocated, leading to a use-after-free condition. This can result in a system crash, causing a Denial of Service (DoS).

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-825 · Expired Pointer Dereference