Bug 2414512 (CVE-2025-40116)

Summary: CVE-2025-40116 kernel: usb: host: max3421-hcd: Fix error pointer dereference in probe cleanup
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 2025-11-12 11:04:42 UTC 
In the Linux kernel, the following vulnerability has been resolved:

usb: host: max3421-hcd: Fix error pointer dereference in probe cleanup

The kthread_run() function returns error pointers so the
max3421_hcd->spi_thread pointer can be either error pointers or NULL.
Check for both before dereferencing it.
Comment 1 Alexander B 2025-11-13 13:27:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025111251-CVE-2025-40116-3942@gregkh/T