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CVE-2026-23429

iommu/sva: Fix crash in iommu_sva_unbind_device() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: iommu/sva: Fix crash in iommu_sva_unbind_device() domain->mm->iommu_mm can be freed by iommu_domain_free(): iommu_domain_free() mmdrop() __mmdrop() mm_pasid_drop() After iommu_domain_free() returns, accessing domain->mm->iommu_mm may dereference a freed mm structure, leading to a crash. Fix this by moving the code that accesses domain->mm->iommu_mm to before the call to iommu_domain_free().

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 9f0a7ab700f8620e433b05c57fbd26c92ea186d9 before 58abeb7b9562f25bdfa2f5ae5ce803eb02e74433; affected e37d5a2d60a338c5917c45296bac65da1382eda5 before f5daaa2c959d9f894fb5b1ab76da8612dd220a0d; affected e37d5a2d60a338c5917c45296bac65da1382eda5 before 06e14c36e20b48171df13d51b89fe67c594ed07a; affected 6.18.7 before 6.18.20
Linux / Linuxaffected 6.19; unaffected 0 before 6.19; unaffected 6.18.20 through 6.18.*; unaffected 6.19.10 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References