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

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未实现引用计数机制，可能导致设备移除期间内核崩溃。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.20% · P9

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux a314f6367787ee1d767df9a2120f17e4511144d0< 8ce3ebbe5c718940b4e94f5c25f5720223f893f8 affected
a314f6367787ee1d767df9a2120f17e4511144d0< 56787f4a75907ae99b5f5842b756fa68e2482f6d affected
a314f6367787ee1d767df9a2120f17e4511144d0< 8df235f768cea7a5829cb02525622646eb0df5f5 affected
a314f6367787ee1d767df9a2120f17e4511144d0< 65ed52200080eafce3eead05cf22ce01238defca affected
a314f6367787ee1d767df9a2120f17e4511144d0< b7ec8a2b094a33d0464958c2cbf75b8f229098b0 affected
a314f6367787ee1d767df9a2120f17e4511144d0< 7446284023e8ef694fb392348185349c773eefb3 affected
5.9 affected
< 5.9 unaffected
… +6 more rows
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I. Basic Information for CVE-2025-40005

Vulnerability Information
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Vulnerability Title
spi: cadence-quadspi: Implement refcount to handle unbind during busy
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未实现引用计数机制，可能导致设备移除期间内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux a314f6367787ee1d767df9a2120f17e4511144d0 ~ 8ce3ebbe5c718940b4e94f5c25f5720223f893f8 -
Linux Linux 5.9 -

II. Public POCs for CVE-2025-40005

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III. Intelligence Information for CVE-2025-40005

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Patches & Fixes for CVE-2025-40005 (3)

Same Patch Batch · Linux · 2025-10-20 · 13 CVEs total

CVE-2025-40012 7.8 HIGH net/smc: fix warning in smc_rx_splice() when calling get_page()
CVE-2025-40006 7.8 HIGH mm/hugetlb: fix folio is still mapped when deleted
CVE-2025-40017 media: iris: Fix memory leak by freeing untracked persist buffer
CVE-2025-40015 media: stm32-csi: Fix dereference before NULL check
CVE-2025-40016 media: uvcvideo: Mark invalid entities with id UVC_INVALID_ENTITY_ID
CVE-2025-40013 ASoC: qcom: audioreach: fix potential null pointer dereference
CVE-2025-40011 drm/gma500: Fix null dereference in hdmi teardown
CVE-2025-40010 afs: Fix potential null pointer dereference in afs_put_server
CVE-2025-40009 fs/proc/task_mmu: check p->vec_buf for NULL
CVE-2025-40008 kmsan: fix out-of-bounds access to shadow memory
CVE-2025-40007 netfs: fix reference leak
CVE-2025-40004 net/9p: Fix buffer overflow in USB transport layer

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40005

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