CVE-2026-23429

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().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/06e14c36e20b48171df13d51b89fe67c594ed07a	Patch
https://git.kernel.org/stable/c/58abeb7b9562f25bdfa2f5ae5ce803eb02e74433	Patch
https://git.kernel.org/stable/c/f5daaa2c959d9f894fb5b1ab76da8612dd220a0d	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.19:-::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc6::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc7::::::

History

No history.

Information

Published : 2026-04-03 16:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-23429

Mitre link : CVE-2026-23429

CVE.ORG link : CVE-2026-23429

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "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()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\niommu/sva: Corrige un fallo en iommu_sva_unbind_device()\n\ndomain -> mm -> iommu_mm puede ser liberado por iommu_domain_free():\n iommu_domain_free()\n mmdrop()\n __mmdrop()\n mm_pasid_drop()\nDespu\u00e9s de que iommu_domain_free() retorna, acceder a domain -> mm -> iommu_mm puede desreferenciar una estructura mm liberada, lo que lleva a un fallo.\n\nSoluciona esto moviendo el c\u00f3digo que accede a domain -> mm -> iommu_mm a antes de la llamada a iommu_domain_free()."}], "lastModified": "2026-07-24T21:10:00.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9D50780B-8F7F-4376-BF4F-15D126B49AAD", "versionEndExcluding": "6.18.20", "versionStartIncluding": "6.18.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D70DEFFE-AC47-4F3A-A2B2-2D67AB4CF3C8", "versionEndExcluding": "6.19.10", "versionStartIncluding": "6.19.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "35C8A871-4971-433E-A046-FC9F7B7D190A"}, {"criteria": 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