Riskcovery

CVE-2026-80621

PCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability

State
Published
Severity
Not scored
Published
Aug 28, 2026
Updated
Aug 28, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

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]

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 4fbfa17f9a075593281034f566ca79cbf4930c82 to before 514b84b1bf30f75f32c2fa66734dc1a177abb73eAffected
  • 4fbfa17f9a075593281034f566ca79cbf4930c82 to before 855870e8c59b97fd424e8fa3543c9e289bb48facAffected
  • 4fbfa17f9a075593281034f566ca79cbf4930c82 to before 26b67fa10ef84ea667942491b50e6261a45f098dAffected
LinuxLinux
  • 6.15Affected
  • before 6.15Not affected
  • 6.18.40 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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