{"id":"CVE-2026-53280","state":"PUBLISHED","title":"iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done()\n\nLocal sashiko review pointed it out that group->domain could be NULL when\na default domain fails to allocate during the first probe, which can crash\nat domain->ops->attach_dev dereference in __iommu_attach_device() invoked\nby pci_dev_reset_iommu_done().\n\npci_dev_reset_iommu_prepare() is fine as an old_domain pointer can be NULL.\n\nSkip the re-attach in pci_dev_reset_iommu_done() to fix the bug.","publishedAt":"2026-06-26T19:40:42.226Z","updatedAt":"2026-06-26T19:40:42.226Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c279e83953d937470f8a6e69b69f62608714f13f","status":"affected","lessThan":"17194cd0dd236e732d116d50840d795ca50ef196","versionType":"git"},{"version":"c279e83953d937470f8a6e69b69f62608714f13f","status":"affected","lessThan":"d769711fcddd005f1e654b3bde547140917fe696","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/iommu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/iommu.c"]}],"references":["https://git.kernel.org/stable/c/17194cd0dd236e732d116d50840d795ca50ef196","https://git.kernel.org/stable/c/d769711fcddd005f1e654b3bde547140917fe696"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53280.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53280","state":"PUBLISHED","datePublished":"2026-06-26T19:40:42.226Z","dateUpdated":"2026-06-26T19:40:42.226Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.395Z"},"containers":{"cna":{"title":"iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done()\n\nLocal sashiko review pointed it out that group->domain could be NULL when\na default domain fails to allocate during the first probe, which can crash\nat domain->ops->attach_dev dereference in __iommu_attach_device() invoked\nby pci_dev_reset_iommu_done().\n\npci_dev_reset_iommu_prepare() is fine as an old_domain pointer can be NULL.\n\nSkip the re-attach in pci_dev_reset_iommu_done() to fix the bug."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c279e83953d937470f8a6e69b69f62608714f13f","status":"affected","lessThan":"17194cd0dd236e732d116d50840d795ca50ef196","versionType":"git"},{"version":"c279e83953d937470f8a6e69b69f62608714f13f","status":"affected","lessThan":"d769711fcddd005f1e654b3bde547140917fe696","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/iommu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/iommu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/17194cd0dd236e732d116d50840d795ca50ef196"},{"url":"https://git.kernel.org/stable/c/d769711fcddd005f1e654b3bde547140917fe696"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-26T19:40:42.226Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}