{"id":"CVE-2026-80621","summary":"PCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability","details":"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-\u003edebugfs-\u003erasdes_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]","modified":"2026-08-30T03:48:22.990163909Z","published":"2026-08-28T06:48:41.081Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80621.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/26b67fa10ef84ea667942491b50e6261a45f098d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/514b84b1bf30f75f32c2fa66734dc1a177abb73e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/855870e8c59b97fd424e8fa3543c9e289bb48fac"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80621.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80621"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4fbfa17f9a075593281034f566ca79cbf4930c82"},{"fixed":"514b84b1bf30f75f32c2fa66734dc1a177abb73e"},{"fixed":"855870e8c59b97fd424e8fa3543c9e289bb48fac"},{"fixed":"26b67fa10ef84ea667942491b50e6261a45f098d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80621.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.15.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80621.json"}}],"schema_version":"1.9.0"}