Medium severity5.5NVD Advisory· Published May 1, 2026· Updated May 8, 2026
CVE-2026-31755
CVE-2026-31755
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.
AI Insight
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Affected products
7cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.4,<5.15.203
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/14bf08ab2cdfcdfd3f13e799d06692a1b3e0745fnvdPatch
- git.kernel.org/stable/c/390536cc6af4ca5566bc3bf1f8b704700380cd2cnvdPatch
- git.kernel.org/stable/c/3d1433fe34b224b90259e207e5389e95b504ef04nvdPatch
- git.kernel.org/stable/c/7f6f127b9bc34bed35f56faf7ecb1561d6b39000nvdPatch
- git.kernel.org/stable/c/9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9nvdPatch
- git.kernel.org/stable/c/d61446dfc9d387775bb1b95b081953201b9222afnvdPatch
- git.kernel.org/stable/c/fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6nvdPatch
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