{"id":"CVE-2026-90421","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when dynids.lock is held,\nas remove_id_store() can free the node.…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when dynids.lock is held,\nas remove_id_store() can free the node.…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 0994375e9614f78657031e04e30019b9cdb62795 < 42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49","Linux >= 0994375e9614f78657031e04e30019b9cdb62795 < 3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc","Linux 2.6.30"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:46.623","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90421","references":[{"url":"https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.794Z","epss":0.00189,"epssPercentile":0.08812,"slug":"CVE-2026-90421","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when dynids.lock is held,\nas remove_id_store() can free the node. Thus, make a copy in\npci_match_device(). Also, clarify that the id parameter is only valid\nduring probe.\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":[]}