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I. Basic Information for CVE-2026-31755
Vulnerability Information

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Vulnerability Title
usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: gadget: fix NULL pointer dereference in ep_queue When the gadget endpoint is disabled or not yet configured, the ep->desc pointer can be NULL. This leads to a NULL pointer dereference when __cdns3_gadget_ep_queue() is called, causing a kernel crash. Add a check to return -ESHUTDOWN if ep->desc is NULL, which is the standard return code for unconfigured endpoints. This prevents potential crashes when ep_queue is called on endpoints that are not ready.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux 7733f6c32e36ff9d7adadf40001039bf219b1cbe ~ 3d1433fe34b224b90259e207e5389e95b504ef04 -
LinuxLinux 5.4 -
II. Public POCs for CVE-2026-31755
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III. Intelligence Information for CVE-2026-31755
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IV. Related Vulnerabilities
V. Comments for CVE-2026-31755

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