CVE-2026-80621
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]
Affected versions
Linux kernel versions
6.15
and later are affected. Fixed in
6.18.40,
7.1.5,
7.2
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-80621?
CVE-2026-80621 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.15 onward and has been patched in 6.18.40, 7.1.5 and 7.2. CVE-2026-80621 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-80621?
Yes. CVE-2026-80621 has been patched. Fixed versions include 6.18.40, 7.1.5 and 7.2. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-80621 actively exploited?
No. CVE-2026-80621 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.