Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper. Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.12, < 5.15.209 |
References
- https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3Patch
- https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85dPatch
- https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915aPatch
- https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3Patch
- https://git.kernel.org/stable/c/c3029721b84f59e790285ad27544ed5d3cb0f2a6Patch
- https://git.kernel.org/stable/c/c72f6a7ea638f95c486a5cfd86e567b646027687Patch
- https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266dPatch
FAQ
What is CVE-2026-46009?
CVE-2026-46009 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is su...
How severe is CVE-2026-46009?
CVE-2026-46009 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46009?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.