CVE-2025-40005

In the Linux kernel, the following vulnerability has been resolved: spi: cadence-quadspi: Implement refcount to handle unbind during busy driver support indirect read and indirect write operation with assumption no force device removal(unbind) operation. However force device removal(removal) is still available to root superuser. Unbinding driver during operation causes kernel crash. This changes ensure driver able to handle such operation for indirect read and indirect write by implementing refcount to track attached devices to the controller and gracefully wait and until attached devices remove operation completed before proceed with removal operation.

• https://git.kernel.org/stable/c/56787f4a75907ae99b5f5842b756fa68e2482f6d
• https://git.kernel.org/stable/c/65ed52200080eafce3eead05cf22ce01238defca
• https://git.kernel.org/stable/c/7446284023e8ef694fb392348185349c773eefb3Patch
• https://git.kernel.org/stable/c/8ce3ebbe5c718940b4e94f5c25f5720223f893f8
• https://git.kernel.org/stable/c/8df235f768cea7a5829cb02525622646eb0df5f5Patch
• https://git.kernel.org/stable/c/b7ec8a2b094a33d0464958c2cbf75b8f229098b0Patch

Published

Oct 20, 2025

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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