{"id":"CVE-2026-90421","state":"PUBLISHED","title":"PCI: Fix UAF when probe runs concurrent to dyn ID removal","description":"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. Thus, make a copy in\npci_match_device(). Also, clarify that the id parameter is only valid\nduring probe.","publishedAt":"2026-09-17T16:09:45.185Z","updatedAt":"2026-10-30T12:35:34.567Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"74133e74619d108eeaaa787d78906314d7a7b077","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"d867db0a2602919510f346bc555f7b3093f6b6cc","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"2cbcb0819c6367e1d5b0792a960594cc19576e23","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"c36816feff47f676dcc51919777d483f4146c1ee","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c","include/linux/pci.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c","include/linux/pci.h"]}],"references":["https://git.kernel.org/stable/c/74133e74619d108eeaaa787d78906314d7a7b077","https://git.kernel.org/stable/c/d867db0a2602919510f346bc555f7b3093f6b6cc","https://git.kernel.org/stable/c/2cbcb0819c6367e1d5b0792a960594cc19576e23","https://git.kernel.org/stable/c/c36816feff47f676dcc51919777d483f4146c1ee","https://git.kernel.org/stable/c/42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49","https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc"],"weaknesses":[],"ingestedAt":"2026-10-30T12:54:04.478Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90421.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90421","state":"PUBLISHED","datePublished":"2026-09-17T16:09:45.185Z","dateUpdated":"2026-10-30T12:35:34.567Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.814Z"},"containers":{"cna":{"title":"PCI: Fix UAF when probe runs concurrent to dyn ID removal","descriptions":[{"lang":"en","value":"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. Thus, make a copy in\npci_match_device(). Also, clarify that the id parameter is only valid\nduring probe."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"74133e74619d108eeaaa787d78906314d7a7b077","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"d867db0a2602919510f346bc555f7b3093f6b6cc","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"2cbcb0819c6367e1d5b0792a960594cc19576e23","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"c36816feff47f676dcc51919777d483f4146c1ee","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49","versionType":"git"},{"version":"0994375e9614f78657031e04e30019b9cdb62795","status":"affected","lessThan":"3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c","include/linux/pci.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c","include/linux/pci.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/74133e74619d108eeaaa787d78906314d7a7b077"},{"url":"https://git.kernel.org/stable/c/d867db0a2602919510f346bc555f7b3093f6b6cc"},{"url":"https://git.kernel.org/stable/c/2cbcb0819c6367e1d5b0792a960594cc19576e23"},{"url":"https://git.kernel.org/stable/c/c36816feff47f676dcc51919777d483f4146c1ee"},{"url":"https://git.kernel.org/stable/c/42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49"},{"url":"https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:35:34.567Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}