{"id":"CVE-2026-53280","summary":"iommu: Fix NULL group-\u003edomain dereference in pci_dev_reset_iommu_done()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Fix NULL group-\u003edomain dereference in pci_dev_reset_iommu_done()\n\nLocal sashiko review pointed it out that group-\u003edomain could be NULL when\na default domain fails to allocate during the first probe, which can crash\nat domain-\u003eops-\u003eattach_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.","modified":"2026-07-09T03:51:15.596214148Z","published":"2026-06-26T19:40:42.226Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53280.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/17194cd0dd236e732d116d50840d795ca50ef196"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d769711fcddd005f1e654b3bde547140917fe696"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53280.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53280"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c279e83953d937470f8a6e69b69f62608714f13f"},{"fixed":"17194cd0dd236e732d116d50840d795ca50ef196"},{"fixed":"d769711fcddd005f1e654b3bde547140917fe696"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53280.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.0.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53280.json"}}],"schema_version":"1.7.5"}