CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable()

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: 2025-10-28 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() pru_rproc_set_ctable() accessed rproc->priv before the IS_ERR_OR_NULL check, which could lead to a null pointer dereference. Move the pru assignment, ensuring we never dereference a NULL rproc pointer.

Affected products

Linux kernel: 6.3 — 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/66821fdb723d55b25482a76b92d17d416efeae6b
https://git.kernel.org/stable/c/c9b6d789591f2bd57b0cbd59592493e11e029ed4
https://git.kernel.org/stable/c/d41e075b077142bb9ae5df40b9ddf9fd7821a811
https://git.kernel.org/stable/c/f0164d89950120281f2446be9687cffa1e43dbcc

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