NetSight
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medium5.5

CVE-2026-31755

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 di…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.4 before 5.15.203
from 5.16 before 6.1.168
from 6.2 before 6.6.134
from 6.7 before 6.12.81
from 6.13 before 6.18.22
from 6.19 before 6.19.12

Weakness classification

CWE-476

References