Bug 2407339 (CVE-2025-40095)

Summary: CVE-2025-40095 kernel: usb: gadget: f_rndis: Refactor bind path to use __free()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-30 10:02:23 UTC 
In the Linux kernel, the following vulnerability has been resolved:

usb: gadget: f_rndis: Refactor bind path to use __free()

After an bind/unbind cycle, the rndis->notify_req is left stale. If a
subsequent bind fails, the unified error label attempts to free this
stale request, leading to a NULL pointer dereference when accessing
ep->ops->free_request.

Refactor the error handling in the bind path to use the __free()
automatic cleanup mechanism.
Comment 1 Jon Moroney 2025-10-30 16:33:07 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025103016-CVE-2025-40095-fde5@gregkh/T