Bug 2425024 (CVE-2025-68748)

Summary: CVE-2025-68748 kernel: drm/panthor: Fix UAF race between device unplug and FW event processing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-12-24 13:02:45 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/panthor: Fix UAF race between device unplug and FW event processing

The function panthor_fw_unplug() will free the FW memory sections.
The problem is that there could still be pending FW events which are yet
not handled at this point. process_fw_events_work() can in this case try
to access said freed memory.

Simply call disable_work_sync() to both drain and prevent future
invocation of process_fw_events_work().
Comment 1 Alexander B 2025-12-25 08:04:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122417-CVE-2025-68748-45cb@gregkh/T