{"id":"CVE-2026-93818","state":"PUBLISHED","title":"PCI: plda: Protect root bus removal with rescan lock","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: plda: 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]","publishedAt":"2026-09-24T16:02:54.890Z","updatedAt":"2026-09-25T12:43:26.921Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"76c9113968079140cb2f885631db422170f32105","status":"affected","lessThan":"105f212a21cc6bef6855841216dd476022626170","versionType":"git"},{"version":"76c9113968079140cb2f885631db422170f32105","status":"affected","lessThan":"cb78a1d7a2787758a2d8e1182c346d4349f43260","versionType":"git"},{"version":"76c9113968079140cb2f885631db422170f32105","status":"affected","lessThan":"4e4f9745f016c1631d00a4035b06f6e75d449e01","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/plda/pcie-plda-host.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/plda/pcie-plda-host.c"]}],"references":["https://git.kernel.org/stable/c/105f212a21cc6bef6855841216dd476022626170","https://git.kernel.org/stable/c/cb78a1d7a2787758a2d8e1182c346d4349f43260","https://git.kernel.org/stable/c/4e4f9745f016c1631d00a4035b06f6e75d449e01"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93818.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93818","state":"PUBLISHED","datePublished":"2026-09-24T16:02:54.890Z","dateUpdated":"2026-09-25T12:43:26.921Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-18T17:59:28.791Z"},"containers":{"cna":{"title":"PCI: plda: Protect root bus removal with rescan lock","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: plda: 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]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"76c9113968079140cb2f885631db422170f32105","status":"affected","lessThan":"105f212a21cc6bef6855841216dd476022626170","versionType":"git"},{"version":"76c9113968079140cb2f885631db422170f32105","status":"affected","lessThan":"cb78a1d7a2787758a2d8e1182c346d4349f43260","versionType":"git"},{"version":"76c9113968079140cb2f885631db422170f32105","status":"affected","lessThan":"4e4f9745f016c1631d00a4035b06f6e75d449e01","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/plda/pcie-plda-host.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/plda/pcie-plda-host.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/105f212a21cc6bef6855841216dd476022626170"},{"url":"https://git.kernel.org/stable/c/cb78a1d7a2787758a2d8e1182c346d4349f43260"},{"url":"https://git.kernel.org/stable/c/4e4f9745f016c1631d00a4035b06f6e75d449e01"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-09-25T12:43:26.921Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}