{"api_version":"1","generated_at":"2026-05-28T04:24:02+00:00","cve":"CVE-2026-45931","urls":{"html":"https://cve.report/CVE-2026-45931","api":"https://cve.report/api/cve/CVE-2026-45931.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45931","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45931"},"summary":{"title":"accel/amdxdna: Hold mm structure across iommu_sva_unbind_device()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Hold mm structure across iommu_sva_unbind_device()\n\nSome tests trigger a crash in iommu_sva_unbind_device() due to\naccessing iommu_mm after the associated mm structure has been\nfreed.\n\nFix this by taking an explicit reference to the mm structure\nafter successfully binding the device, and releasing it only\nafter the device is unbound. This ensures the mm remains valid\nfor the entire SVA bind/unbind lifetime.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:09","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f31ccf6278132a35a652fe5eeac3941e1e912398","name":"https://git.kernel.org/stable/c/f31ccf6278132a35a652fe5eeac3941e1e912398","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f6b4c1d98a7b8040d4d02e89425b3942016a2c2c","name":"https://git.kernel.org/stable/c/f6b4c1d98a7b8040d4d02e89425b3942016a2c2c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a9162439ad792afcddc04718408ec1380b7a5f63","name":"https://git.kernel.org/stable/c/a9162439ad792afcddc04718408ec1380b7a5f63","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45931","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45931","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be462c97b7dfd24999babe39cce3de224ebe1f80 f6b4c1d98a7b8040d4d02e89425b3942016a2c2c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be462c97b7dfd24999babe39cce3de224ebe1f80 f31ccf6278132a35a652fe5eeac3941e1e912398 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be462c97b7dfd24999babe39cce3de224ebe1f80 a9162439ad792afcddc04718408ec1380b7a5f63 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/accel/amdxdna/amdxdna_pci_drv.c","drivers/accel/amdxdna/amdxdna_pci_drv.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f6b4c1d98a7b8040d4d02e89425b3942016a2c2c","status":"affected","version":"be462c97b7dfd24999babe39cce3de224ebe1f80","versionType":"git"},{"lessThan":"f31ccf6278132a35a652fe5eeac3941e1e912398","status":"affected","version":"be462c97b7dfd24999babe39cce3de224ebe1f80","versionType":"git"},{"lessThan":"a9162439ad792afcddc04718408ec1380b7a5f63","status":"affected","version":"be462c97b7dfd24999babe39cce3de224ebe1f80","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/accel/amdxdna/amdxdna_pci_drv.c","drivers/accel/amdxdna/amdxdna_pci_drv.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Hold mm structure across iommu_sva_unbind_device()\n\nSome tests trigger a crash in iommu_sva_unbind_device() due to\naccessing iommu_mm after the associated mm structure has been\nfreed.\n\nFix this by taking an explicit reference to the mm structure\nafter successfully binding the device, and releasing it only\nafter the device is unbound. This ensures the mm remains valid\nfor the entire SVA bind/unbind lifetime."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:17:49.527Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f6b4c1d98a7b8040d4d02e89425b3942016a2c2c"},{"url":"https://git.kernel.org/stable/c/f31ccf6278132a35a652fe5eeac3941e1e912398"},{"url":"https://git.kernel.org/stable/c/a9162439ad792afcddc04718408ec1380b7a5f63"}],"title":"accel/amdxdna: Hold mm structure across iommu_sva_unbind_device()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45931","datePublished":"2026-05-27T12:17:49.527Z","dateReserved":"2026-05-13T15:03:33.086Z","dateUpdated":"2026-05-27T12:17:49.527Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:09","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45931","Ordinal":"1","Title":"accel/amdxdna: Hold mm structure across iommu_sva_unbind_device(","CVE":"CVE-2026-45931","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45931","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Hold mm structure across iommu_sva_unbind_device()\n\nSome tests trigger a crash in iommu_sva_unbind_device() due to\naccessing iommu_mm after the associated mm structure has been\nfreed.\n\nFix this by taking an explicit reference to the mm structure\nafter successfully binding the device, and releasing it only\nafter the device is unbound. This ensures the mm remains valid\nfor the entire SVA bind/unbind lifetime.","Type":"Description","Title":"accel/amdxdna: Hold mm structure across iommu_sva_unbind_device("}]}}}