CVE-2026-31755
usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 1, 2026 |
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Affected Versions
Linux / Linux
7733f6c32e36ff9d7adadf40001039bf219b1cbe < 3d1433fe34b224b90259e207e5389e95b504ef04 7733f6c32e36ff9d7adadf40001039bf219b1cbe < fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9 7733f6c32e36ff9d7adadf40001039bf219b1cbe < d61446dfc9d387775bb1b95b081953201b9222af 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 390536cc6af4ca5566bc3bf1f8b704700380cd2c 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 14bf08ab2cdfcdfd3f13e799d06692a1b3e0745f 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 7f6f127b9bc34bed35f56faf7ecb1561d6b39000
Linux / Linux
5.4
References
git.kernel.org: https://git.kernel.org/stable/c/3d1433fe34b224b90259e207e5389e95b504ef04 git.kernel.org: https://git.kernel.org/stable/c/fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6 git.kernel.org: https://git.kernel.org/stable/c/9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9 git.kernel.org: https://git.kernel.org/stable/c/d61446dfc9d387775bb1b95b081953201b9222af git.kernel.org: https://git.kernel.org/stable/c/390536cc6af4ca5566bc3bf1f8b704700380cd2c git.kernel.org: https://git.kernel.org/stable/c/14bf08ab2cdfcdfd3f13e799d06692a1b3e0745f git.kernel.org: https://git.kernel.org/stable/c/7f6f127b9bc34bed35f56faf7ecb1561d6b39000