{"id":"CVE-2026-93820","state":"PUBLISHED","title":"PCI: rockchip: Protect root bus removal with rescan lock","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: rockchip: 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":"2026-09-24T16:02:58.625Z","updatedAt":"2026-10-03T10:57:51.365Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"025308e7c9cd10112b73558c9f63f8f7285fa726","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"ac47d42901859edb504a2890a3a5709c86dbc0c3","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"eaeb9bed3641741aceb0add84a97023bed61e748","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"ebca7e5947720e9d4bd918af3e17720270c50744","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"9b19201f57d87c4d0777621275dbc59bff41b7f2","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"0bd9611587bb494c33566d825fe34b2705e4b167","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-rockchip-host.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","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/pcie-rockchip-host.c"]}],"references":["https://git.kernel.org/stable/c/025308e7c9cd10112b73558c9f63f8f7285fa726","https://git.kernel.org/stable/c/ac47d42901859edb504a2890a3a5709c86dbc0c3","https://git.kernel.org/stable/c/eaeb9bed3641741aceb0add84a97023bed61e748","https://git.kernel.org/stable/c/5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652","https://git.kernel.org/stable/c/ebca7e5947720e9d4bd918af3e17720270c50744","https://git.kernel.org/stable/c/9b19201f57d87c4d0777621275dbc59bff41b7f2","https://git.kernel.org/stable/c/0bd9611587bb494c33566d825fe34b2705e4b167"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93820.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93820","state":"PUBLISHED","datePublished":"2026-09-24T16:02:58.625Z","dateUpdated":"2026-10-03T10:57:51.365Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-18T17:59:28.791Z"},"containers":{"cna":{"title":"PCI: rockchip: Protect root bus removal with rescan lock","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: rockchip: 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":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"025308e7c9cd10112b73558c9f63f8f7285fa726","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"ac47d42901859edb504a2890a3a5709c86dbc0c3","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"eaeb9bed3641741aceb0add84a97023bed61e748","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"ebca7e5947720e9d4bd918af3e17720270c50744","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"9b19201f57d87c4d0777621275dbc59bff41b7f2","versionType":"git"},{"version":"073d3dbe9a7c38888d8dafe09df421b174a6cffa","status":"affected","lessThan":"0bd9611587bb494c33566d825fe34b2705e4b167","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-rockchip-host.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","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/pcie-rockchip-host.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/025308e7c9cd10112b73558c9f63f8f7285fa726"},{"url":"https://git.kernel.org/stable/c/ac47d42901859edb504a2890a3a5709c86dbc0c3"},{"url":"https://git.kernel.org/stable/c/eaeb9bed3641741aceb0add84a97023bed61e748"},{"url":"https://git.kernel.org/stable/c/5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652"},{"url":"https://git.kernel.org/stable/c/ebca7e5947720e9d4bd918af3e17720270c50744"},{"url":"https://git.kernel.org/stable/c/9b19201f57d87c4d0777621275dbc59bff41b7f2"},{"url":"https://git.kernel.org/stable/c/0bd9611587bb494c33566d825fe34b2705e4b167"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-03T10:57:51.365Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}