CVE-2026-80621: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: PCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability dwc_pcie_rasdes_debugfs_init() returns success when the controller has no RAS DES capability, leaving pci->debugfs->rasdes_info unset. The common debugfs teardown path still calls dwc_pcie_rasdes_debugfs_deinit(), which dereferences rasdes_info unconditionally. Return early when no RAS DES state was allocated. In that case no RAS DES mutex was initialized, so there is nothing to destroy. [mani: reworded subject]

Засегнати продукти

• Linux Linux: 4fbfa17f9a075593281034f566ca79cbf4930c82 преди 514b84b1bf30f75f32c2fa66734dc1a177abb73e; 4fbfa17f9a075593281034f566ca79cbf4930c82 преди 855870e8c59b97fd424e8fa3543c9e289bb48fac; 4fbfa17f9a075593281034f566ca79cbf4930c82 преди 26b67fa10ef84ea667942491b50e6261a45f098d
• Linux Linux: 6.15; преди 6.15; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-80621
• https://nvd.nist.gov/vuln/detail/CVE-2026-80621
• https://git.kernel.org/stable/c/514b84b1bf30f75f32c2fa66734dc1a177abb73e
• https://git.kernel.org/stable/c/855870e8c59b97fd424e8fa3543c9e289bb48fac
• https://git.kernel.org/stable/c/26b67fa10ef84ea667942491b50e6261a45f098d