CVE-2026-80621
Description
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]
How to fix
- Linux Linux514b84b1bf30f75f32c2fa66734dc1a177abb73e, 855870e8c59b97fd424e8fa3543c9e289bb48fac, 26b67fa10ef84ea667942491b50e6261a45f098d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 4fbfa17f9a075593281034f566ca79cbf4930c82 ≤ v < 514b84b1bf30f75f32c2fa66734dc1a177abb73e, 4fbfa17f9a075593281034f566ca79cbf4930c82 ≤ v < 855870e8c59b97fd424e8fa3543c9e289bb48fac, 4fbfa17f9a075593281034f566ca79cbf4930c82 ≤ v < 26b67fa10ef84ea667942491b50e6261a45f098d, 6.15 | 514b84b1bf30f75f32c2fa66734dc1a177abb73e, 855870e8c59b97fd424e8fa3543c9e289bb48fac, 26b67fa10ef84ea667942491b50e6261a45f098d |
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