Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: PCI: Fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when dynids.lock is held, as remove_id_store() can free the node. Thus, make a copy in pci_match_device(). Also, clarify that the id parameter is only valid during probe.
References
- https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc
- https://git.kernel.org/stable/c/42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49
FAQ
What is CVE-2026-90421?
CVE-2026-90421 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: PCI: Fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when dynids.lock is held, as...
How severe is CVE-2026-90421?
CVSS scoring is not yet available for CVE-2026-90421. Check NVD for updates.
Is there a patch for CVE-2026-90421?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.