CVE-2026-31755

MEDIUM EPSS 2.4%
Published May 1, 20262mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥5.4  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.134
linuxlinux_kernel*≥6.7  –  <6.12.81
linuxlinux_kernel*≥6.13  –  <6.18.22
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/14bf08ab2cdfcdfd3f13e799d06692a1b3e0745f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/390536cc6af4ca5566bc3bf1f8b704700380cd2c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d1433fe34b224b90259e207e5389e95b504ef04
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f6f127b9bc34bed35f56faf7ecb1561d6b39000
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d61446dfc9d387775bb1b95b081953201b9222af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/14bf08ab2cdfcdfd3f13e799d06692a1b3e0745f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/390536cc6af4ca5566bc3bf1f8b704700380cd2c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d1433fe34b224b90259e207e5389e95b504ef04
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f6f127b9bc34bed35f56faf7ecb1561d6b39000
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d61446dfc9d387775bb1b95b081953201b9222af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6
    Patch