Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-rt-modules (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-KERNELRTMODULES-21295975
- published21 Oct 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
CVE-2026-90421 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules package and not the kernel-rt-modules package as distributed by RHEL.
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://bugzilla.redhat.com/show_bug.cgi?id=2536507
- https://access.redhat.com/security/cve/CVE-2026-90421
- https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc
- https://git.kernel.org/stable/c/42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49
- https://git.kernel.org/stable/c/c36816feff47f676dcc51919777d483f4146c1ee
- https://git.kernel.org/stable/c/2cbcb0819c6367e1d5b0792a960594cc19576e23
- https://git.kernel.org/stable/c/d867db0a2602919510f346bc555f7b3093f6b6cc
- https://git.kernel.org/stable/c/74133e74619d108eeaaa787d78906314d7a7b077