CVE-2025-68176: PCI: cadence: Check for the existence of cdns_pcie::ops before using it

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-16 · updated 2026-10-14

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: cadence: Check for the existence of cdns_pcie::ops before using it cdns_pcie::ops might not be populated by all the Cadence glue drivers. This is going to be true for the upcoming Sophgo platform which doesn't set the ops. Hence, add a check to prevent NULL pointer dereference. [mani: reworded subject and description]

Affected products

Linux kernel: 5.9 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/0d0bb756f002810d249caee51f3f1c309f3cdab5
https://git.kernel.org/stable/c/1810b2fd7375de88a74976dcd402b29088e479ed
https://git.kernel.org/stable/c/363448d069e29685ca37a118065121e486387af3
https://git.kernel.org/stable/c/49a6c160ad4812476f8ae1a8f4ed6d15adfa6c09
https://git.kernel.org/stable/c/953eb3796ef06b8ea3bf6bdde14156255bc75866
https://git.kernel.org/stable/c/d5dbe92ac8a4ca6226093241f95f9cb1b0d2e0e1
https://git.kernel.org/stable/c/eb3d29ca0820fa3d7cccad47d2da56c9ab5469ed

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