{"id":"CVE-2026-93821","title":"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 resc…","summary":"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 resc…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < cf9d84d1b6a7c3f3780c043df220a7e9e38137eb","Linux >= ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < fc462f1bdeaea9789928cbfdf5e069ee559c7642","Linux >= ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < 442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3","Linux >= ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < 4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7","Linux >= ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < c0cd65906e5f7e293ef2568c9524cc0a918333c3","Linux >= ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < 7cbb8f2750d91e64caff89e164ac8280bb80bedc","Linux >= ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < a8759c8ac48c0419f5899e95a6ffc611b07c965b","Linux 5.3"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:51.897","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93821","references":[{"url":"https://git.kernel.org/stable/c/442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cf9d84d1b6a7c3f3780c043df220a7e9e38137eb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fc462f1bdeaea9789928cbfdf5e069ee559c7642","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00173,"epssPercentile":0.06636,"ingestedAt":"2026-09-24T16:47:15.892Z","slug":"CVE-2026-93821","body":"## Overview\n\nIn 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]\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}