CVE-2026-80621
Description
AI Translation Available
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]
https://git.kernel.org/stable/c/26b67fa10ef84ea667942491b50e6261a45f098d
https://git.kernel.org/stable/c/514b84b1bf30f75f32c2fa66734dc1a177abb73e
https://git.kernel.org/stable/c/855870e8c59b97fd424e8fa3543c9e289bb48fac