{"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 >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c0cd65906e5f7e293ef2568c9524cc0a918333c3","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7cbb8f2750d91e64caff89e164ac8280bb80bedc","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a8759c8ac48c0419f5899e95a6ffc611b07c965b","Linux < 6.12.111","Linux < 6.18.53","Linux (all versions)"],"published":"2026-09-24","updated":"2026-09-25","sourceUpdated":"2026-09-25T13:17:22.957","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93821","references":[{"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"}],"tags":["nvd","cve.org"],"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":[]}