iommu/sva: Fix crash in iommu_sva_unbind_device()_CVE-2026-23429

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/sva: Fix crash in iommu_sva_unbind_device()\n\ndomain->mm->iommu_mm can be freed by iommu_domain_free():\n  iommu_domain_free()\n    mmdrop()\n      __mmdrop()\n        mm_pasid_drop()\nAfter iommu_domain_free() returns, accessing domain->mm->iommu_mm may\ndereference a freed mm structure, leading to a crash.\n\nFix this by moving the code that accesses domain->mm->iommu_mm to before\nthe call to iommu_domain_free().",
    "published": "2026-04-03T15:15:15.856Z",
    "modified": "2026-04-27T14:02:20.562Z",
    "type": "cve",
    "title": "iommu/sva: Fix crash in iommu_sva_unbind_device()",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/58abeb7b9562f25bdfa2f5ae5ce803eb02e74433\nhttps://git.kernel.org/stable/c/f5daaa2c959d9f894fb5b1ab76da8612dd220a0d\nhttps://git.kernel.org/stable/c/06e14c36e20b48171df13d51b89fe67c594ed07a",
    "id": "CVE-2026-23429",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 9f0a7ab700f8620e433b05c57fbd26c92ea186d9\nLinux Linux e37d5a2d60a338c5917c45296bac65da1382eda5\nLinux Linux e37d5a2d60a338c5917c45296bac65da1382eda5\nLinux Linux 6.19",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "9f0a7ab700f8620e433b05c57fbd26c92ea186d9",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}