{"id":"CVE-2026-80621","state":"PUBLISHED","title":"PCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability\n\ndwc_pcie_rasdes_debugfs_init() returns success when the controller has no\nRAS DES capability, leaving pci->debugfs->rasdes_info unset. The common\ndebugfs teardown path still calls dwc_pcie_rasdes_debugfs_deinit(), which\ndereferences rasdes_info unconditionally.\n\nReturn early when no RAS DES state was allocated. In that case no RAS DES\nmutex was initialized, so there is nothing to destroy.\n\n[mani: reworded subject]","publishedAt":"2026-08-28T06:48:41.081Z","updatedAt":"2026-08-28T06:48:41.081Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4fbfa17f9a075593281034f566ca79cbf4930c82","status":"affected","lessThan":"514b84b1bf30f75f32c2fa66734dc1a177abb73e","versionType":"git"},{"version":"4fbfa17f9a075593281034f566ca79cbf4930c82","status":"affected","lessThan":"855870e8c59b97fd424e8fa3543c9e289bb48fac","versionType":"git"},{"version":"4fbfa17f9a075593281034f566ca79cbf4930c82","status":"affected","lessThan":"26b67fa10ef84ea667942491b50e6261a45f098d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/dwc/pcie-designware-debugfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","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/dwc/pcie-designware-debugfs.c"]}],"references":["https://git.kernel.org/stable/c/514b84b1bf30f75f32c2fa66734dc1a177abb73e","https://git.kernel.org/stable/c/855870e8c59b97fd424e8fa3543c9e289bb48fac","https://git.kernel.org/stable/c/26b67fa10ef84ea667942491b50e6261a45f098d"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80621.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80621","state":"PUBLISHED","datePublished":"2026-08-28T06:48:41.081Z","dateUpdated":"2026-08-28T06:48:41.081Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.774Z"},"containers":{"cna":{"title":"PCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability\n\ndwc_pcie_rasdes_debugfs_init() returns success when the controller has no\nRAS DES capability, leaving pci->debugfs->rasdes_info unset. The common\ndebugfs teardown path still calls dwc_pcie_rasdes_debugfs_deinit(), which\ndereferences rasdes_info unconditionally.\n\nReturn early when no RAS DES state was allocated. In that case no RAS DES\nmutex was initialized, so there is nothing to destroy.\n\n[mani: reworded subject]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4fbfa17f9a075593281034f566ca79cbf4930c82","status":"affected","lessThan":"514b84b1bf30f75f32c2fa66734dc1a177abb73e","versionType":"git"},{"version":"4fbfa17f9a075593281034f566ca79cbf4930c82","status":"affected","lessThan":"855870e8c59b97fd424e8fa3543c9e289bb48fac","versionType":"git"},{"version":"4fbfa17f9a075593281034f566ca79cbf4930c82","status":"affected","lessThan":"26b67fa10ef84ea667942491b50e6261a45f098d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/dwc/pcie-designware-debugfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","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/dwc/pcie-designware-debugfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/514b84b1bf30f75f32c2fa66734dc1a177abb73e"},{"url":"https://git.kernel.org/stable/c/855870e8c59b97fd424e8fa3543c9e289bb48fac"},{"url":"https://git.kernel.org/stable/c/26b67fa10ef84ea667942491b50e6261a45f098d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-28T06:48:41.081Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}