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CVE-2026-46203— spi: cadence-quadspi: fix unclocked access on unbind

AI Predicted 3.3 Difficulty: Easy EPSS 0.02% · P5

Possible ATT&CK Techniques 1AI

T1564.004 · NTFS File Attributes

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux0578a6dbfe7514db7134501cf93acc21cf13e479< d67a5311818b3e6481a1e4293c9337ebfee73111affected
0578a6dbfe7514db7134501cf93acc21cf13e479< 233db2cb14db8b1935dda52a6affd97276462b82affected
6.7affected
< 6.7unaffected
7.0.9≤ 7.0.*unaffected
7.1-rc2≤ *unaffected
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I. Basic Information for CVE-2026-46203

Vulnerability Information
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Vulnerability Title
spi: cadence-quadspi: fix unclocked access on unbind
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: spi: cadence-quadspi: fix unclocked access on unbind Make sure that the controller is runtime resumed before disabling it during driver unbind to avoid an unclocked register access. This issue was flagged by Sashiko when reviewing a controller deregistration fix.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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spi cadence-quadspi驱动在解除绑定时未确保控制器处于运行时唤醒状态，可能导致未时钟访问寄存器。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0578a6dbfe7514db7134501cf93acc21cf13e479 ~ d67a5311818b3e6481a1e4293c9337ebfee73111 -
LinuxLinux 6.7 -

II. Public POCs for CVE-2026-46203

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III. Intelligence Information for CVE-2026-46203

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Patches & Fixes for CVE-2026-46203 (2)

Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total

CVE-2026-461359.8 CRITICALnvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-461379.8 CRITICALmptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-461959.8 CRITICALsmb: client: validate dacloffset before building DACL pointers
CVE-2026-461159.8 CRITICALblock: add pgmap check to biovec_phys_mergeable
CVE-2026-461859.1 CRITICALsmb/client: fix out-of-bounds read in symlink_data()
CVE-2026-461199.1 CRITICALlibceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-461559.1 CRITICALsmb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-461748.8 HIGHx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-461988.8 HIGHbatman-adv: fix integer overflow on buff_pos
CVE-2026-461258.8 HIGHwifi: mac80211: remove station if connection prep fails
CVE-2026-462388.8 HIGHbatman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-461528.8 HIGHwifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-462128.8 HIGHbatman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-461668.8 HIGHwifi: mac80211: use safe list iteration in radar detect work
CVE-2026-461138.8 HIGHKVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-462328.1 HIGHHID: playstation: Clamp num_touch_reports
CVE-2026-461388.1 HIGHBluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-461817.8 HIGHRDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()
CVE-2026-462277.8 HIGHsctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL
CVE-2026-462057.8 HIGHstaging: media: atomisp: Disallow all private IOCTLs

Showing top 20 of 138 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46203

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