CVE-2026-46009

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.

References

• https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3
• https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d
• https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a
• https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3
• https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d