CVE-2025-71307: drm/panthor: Fix NULL pointer dereference on panthor_fw_unplug

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-27 · updated 2026-10-14
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix NULL pointer dereference on panthor_fw_unplug This patch removes the MCU halt and wait for halt procedures during panthor_fw_unplug() as the MCU can be in a variety of states or the FW may not even be loaded/initialized at all, the latter of which can lead to a NULL pointer dereference. It should be safe on unplug to just disable the MCU without waiting for it to halt as it may not be able to.

Affected products

Linux kernel: from 6.19 before 6.19.4 — fixed in 6.19.4

How to fix

Upgrade to a fixed version: Linux kernel 6.19.4. Check the vendor advisory for mitigations.

References

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