CVE-2026-23429
kernel: iommu/sva: Fix crash in iommu_sva_unbind_device()
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Severity
ModerateRed Hat Product Security
CVSS
Review impact separately from score.
Published · April 3, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel. Specifically, within the input/output memory management unit (IOMMU) subsystem, a memory management error can occur. When the iommu_sva_unbind_device() function is called, it may attempt to access a memory area that has already been freed. This can lead to a system crash, resulting in a denial of service for affected systems.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-364 · Signal Handler Race Condition