Medium 5.5Published Oct 20, 2025

CVE-2025-40005spi: cadence-quadspi: Implement refcount to handle unbind during busy

Updated under an hour ago (Oct 28, 2026, 6:40 AM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Jun 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from a314f6367787ee1d767df9a2120f17e4511144d0 before 8ce3ebbe5c718940b4e94f5c25f5720223f893f8; from a314f6367787ee1d767df9a2120f17e4511144d0 before 56787f4a75907ae99b5f5842b756fa68e2482f6d; from a314f6367787ee1d767df9a2120f17e4511144d0 before 8df235f768cea7a5829cb02525622646eb0df5f5; from a314f6367787ee1d767df9a2120f17e4511144d0 before 65ed52200080eafce3eead05cf22ce01238defca; from a314f6367787ee1d767df9a2120f17e4511144d0 before b7ec8a2b094a33d0464958c2cbf75b8f229098b0; from a314f6367787ee1d767df9a2120f17e4511144d0 before 7446284023e8ef694fb392348185349c773eefb3	CNA record
linux linux_kernel linux:linux_kernel	from 5.9 before 6.6.125; from 6.7 before 6.16.10; 6.17; 6.17; 6.17; 6.17	NVD

References

References

https://git.kernel.org/stable/c/8ce3ebbe5c718940b4e94f5c25f5720223f893f8
https://git.kernel.org/stable/c/56787f4a75907ae99b5f5842b756fa68e2482f6d
https://git.kernel.org/stable/c/8df235f768cea7a5829cb02525622646eb0df5f5	patch
https://git.kernel.org/stable/c/65ed52200080eafce3eead05cf22ce01238defca
https://git.kernel.org/stable/c/b7ec8a2b094a33d0464958c2cbf75b8f229098b0	patch
https://git.kernel.org/stable/c/7446284023e8ef694fb392348185349c773eefb3	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.