Riskcovery

CVE-2026-23429

iommu/sva: Fix crash in iommu_sva_unbind_device()

State
Published
Severity
7.8 High
Published
Apr 3, 2026
Updated
Aug 5, 2026
Reserved
Jan 13, 2026

Read the record on cve.org

Description

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().

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 9f0a7ab700f8620e433b05c57fbd26c92ea186d9 to before 58abeb7b9562f25bdfa2f5ae5ce803eb02e74433Affected
  • e37d5a2d60a338c5917c45296bac65da1382eda5 to before f5daaa2c959d9f894fb5b1ab76da8612dd220a0dAffected
  • e37d5a2d60a338c5917c45296bac65da1382eda5 to before 06e14c36e20b48171df13d51b89fe67c594ed07aAffected
  • 6.18.7 to before 6.18.20Affected
LinuxLinux
  • 6.19Affected
  • before 6.19Not affected
  • 6.18.20 through 6.18.*Not affected
  • 6.19.10 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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