CVE-2026-23429 (GCVE-0-2026-23429)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-08-05 12:21
VLAI
Title
iommu/sva: Fix crash in iommu_sva_unbind_device()
Summary
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().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9f0a7ab700f8620e433b05c57fbd26c92ea186d9 , < 58abeb7b9562f25bdfa2f5ae5ce803eb02e74433 (git)
Affected: e37d5a2d60a338c5917c45296bac65da1382eda5 , < f5daaa2c959d9f894fb5b1ab76da8612dd220a0d (git)
Affected: e37d5a2d60a338c5917c45296bac65da1382eda5 , < 06e14c36e20b48171df13d51b89fe67c594ed07a (git)
Affected: 6.18.7 , < 6.18.20 (semver)
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Linux Linux Affected: 6.19
Unaffected: 0 , < 6.19 (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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        "lastModified": "2026-07-24T21:10:00.143",
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      "cve": "CVE-2026-23429",
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      "product_status:known_not_affected": "200",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: iommu/sva: Fix crash in iommu_sva_unbind_device()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23429.json",
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}



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