{"id":"CVE-2026-93821","summary":"PCI: altera: Protect root bus removal with rescan lock","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: altera: Protect root bus removal with rescan lock\n\nHold the pci_rescan_remove_lock lock while stopping and removing a root bus\nto avoid racing with concurrent rescan or hotplug operations triggered via\nsysfs.  Such races may lead to use-after-free issues or system crashes.\n\n[bhelgaas: commit log]","modified":"2026-09-26T03:48:27.007990561Z","published":"2026-09-24T16:02:59.826Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93821.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93821.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93821"},{"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":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22"},{"fixed":"c0cd65906e5f7e293ef2568c9524cc0a918333c3"},{"fixed":"7cbb8f2750d91e64caff89e164ac8280bb80bedc"},{"fixed":"a8759c8ac48c0419f5899e95a6ffc611b07c965b"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93821.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93821.json"}}],"schema_version":"1.9.0"}