CVE-2026-46009

MEDIUM

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown

Title source: cna
STIX 2.1

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 (7)

Core 7

Scores

CVSS v3 5.5
EPSS 0.0012
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (24)
linux/Kernel 5.12.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.27linux
linux/Kernel 6.19.0 - 7.0.4linux
linux/Kernel 6.2.0 - 6.6.140linux
linux/Kernel 6.7.0 - 6.12.86linux
Linux/Linux < 5.12
Linux/Linux 5.12
Linux/Linux 5.15.209 - 5.15.*
Linux/Linux 6.1.175 - 6.1.*
... and 14 more
Published May 27, 2026
Tracked Since May 27, 2026