{"api_version":"1","generated_at":"2026-06-28T18:49:00+00:00","cve":"CVE-2026-53322","urls":{"html":"https://cve.report/CVE-2026-53322","api":"https://cve.report/api/cve/CVE-2026-53322.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53322","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53322"},"summary":{"title":"vfio/pci: Clean up DMABUFs before disabling function","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Clean up DMABUFs before disabling function\n\nOn device shutdown, make vfio_pci_core_close_device() call\nvfio_pci_dma_buf_cleanup() before the function is disabled via\nvfio_pci_core_disable().  This ensures that all access via DMABUFs is\nrevoked before the function's BARs become inaccessible.\n\nThis fixes an issue where, if the function is disabled first, a tiny\nwindow exists in which the function's MSE is cleared and yet BARs\ncould still be accessed via the DMABUF.  The resources would also be\nfreed and up for grabs by a different driver.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-26 20:17:25","updated_at":"2026-06-28 08:16:43"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","data":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/d97708701434ce72968e771976aaf9d3438fcafd","name":"https://git.kernel.org/stable/c/d97708701434ce72968e771976aaf9d3438fcafd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4f1000a30f67cf7d328059242776a858611d5ef9","name":"https://git.kernel.org/stable/c/4f1000a30f67cf7d328059242776a858611d5ef9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53322","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53322","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5d74781ebc86c5fa9e9d6934024c505412de9b52 4f1000a30f67cf7d328059242776a858611d5ef9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5d74781ebc86c5fa9e9d6934024c505412de9b52 d97708701434ce72968e771976aaf9d3438fcafd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53322","cve":"CVE-2026-53322","epss":"0.001450000","percentile":"0.041470000","score_date":"2026-06-27","updated_at":"2026-06-28 00:08:49"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/vfio/pci/vfio_pci_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4f1000a30f67cf7d328059242776a858611d5ef9","status":"affected","version":"5d74781ebc86c5fa9e9d6934024c505412de9b52","versionType":"git"},{"lessThan":"d97708701434ce72968e771976aaf9d3438fcafd","status":"affected","version":"5d74781ebc86c5fa9e9d6934024c505412de9b52","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/vfio/pci/vfio_pci_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Clean up DMABUFs before disabling function\n\nOn device shutdown, make vfio_pci_core_close_device() call\nvfio_pci_dma_buf_cleanup() before the function is disabled via\nvfio_pci_core_disable().  This ensures that all access via DMABUFs is\nrevoked before the function's BARs become inaccessible.\n\nThis fixes an issue where, if the function is disabled first, a tiny\nwindow exists in which the function's MSE is cleared and yet BARs\ncould still be accessed via the DMABUF.  The resources would also be\nfreed and up for grabs by a different driver."}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-28T06:41:31.870Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/4f1000a30f67cf7d328059242776a858611d5ef9"},{"url":"https://git.kernel.org/stable/c/d97708701434ce72968e771976aaf9d3438fcafd"}],"title":"vfio/pci: Clean up DMABUFs before disabling function","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53322","datePublished":"2026-06-26T19:41:13.245Z","dateReserved":"2026-06-09T07:44:35.398Z","dateUpdated":"2026-06-28T06:41:31.870Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-26 20:17:25","lastModifiedDate":"2026-06-28 08:16:43","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2,"impactScore":6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53322","Ordinal":"1","Title":"vfio/pci: Clean up DMABUFs before disabling function","CVE":"CVE-2026-53322","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53322","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Clean up DMABUFs before disabling function\n\nOn device shutdown, make vfio_pci_core_close_device() call\nvfio_pci_dma_buf_cleanup() before the function is disabled via\nvfio_pci_core_disable().  This ensures that all access via DMABUFs is\nrevoked before the function's BARs become inaccessible.\n\nThis fixes an issue where, if the function is disabled first, a tiny\nwindow exists in which the function's MSE is cleared and yet BARs\ncould still be accessed via the DMABUF.  The resources would also be\nfreed and up for grabs by a different driver.","Type":"Description","Title":"vfio/pci: Clean up DMABUFs before disabling function"}]}}}