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CVE-2026-90421

UnknownEPSS 0.20%

Last modified

CVE-2026-90421 is a vulnerability of currently unknown severity. 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(). EPSS estimates a 0.20% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.20%

9.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 0994375e9614f78657031e04e30019b9cdb62795, < 74133e74619d108eeaaa787d78906314d7a7b077; >= 0994375e9614f78657031e04e30019b9cdb62795, < d867db0a2602919510f346bc555f7b3093f6b6cc; >= 0994375e9614f78657031e04e30019b9cdb62795, < 2cbcb0819c6367e1d5b0792a960594cc19576e23; >= 0994375e9614f78657031e04e30019b9cdb62795, < c36816feff47f676dcc51919777d483f4146c1ee; >= 0994375e9614f78657031e04e30019b9cdb62795, < 42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49; >= 0994375e9614f78657031e04e30019b9cdb62795, < 3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc
LinuxLinux2.6.30

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90421?
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.
How severe is CVE-2026-90421?
Severity scoring for CVE-2026-90421 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-90421?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST