Insufficient Granularity of Access Control The advisory has been revoked - it doesn't affect any version of package kernel-zfcpdump-core (opens in a new tab)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-KERNELZFCPDUMPCORE-18029346
- published21 Jul 2026
- disclosed19 Jul 2026
Introduced: 19 Jul 2026
CVE-2026-64042 (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-zfcpdump-core package and not the kernel-zfcpdump-core package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
vfio/pci: Check BAR resources before exporting a DMABUF
A DMABUF exports access to BAR resources and, although they are requested at startup time, we need to ensure they really were reserved before exporting. Otherwise, it's possible to access unreserved resources through the export.
Add a check to the DMABUF-creation path.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2502547
- https://access.redhat.com/security/cve/CVE-2026-64042
- https://access.redhat.com/errata/RHSA-2026:65334
- https://git.kernel.org/stable/c/702809dabdecca807bdd50cfdcc1c980feb2ba62
- https://git.kernel.org/stable/c/8443cd4497a4498c4b01058d76a92116244cb605