{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2"
            },
            {
              "fixed": "0fc54a00954f9f4c3e3d4ffa64a530685d99a39b"
            },
            {
              "fixed": "6e6736c049683380f5e20becde498986e9293ca4"
            },
            {
              "fixed": "3a9691fff79bcce95338435599df6d3ae433cfdc"
            },
            {
              "fixed": "7a4f4ca7ff32ae24807c83e2a06d62b13378d53c"
            },
            {
              "fixed": "6ea3a073ca97716d4a73df49a3bec1c3ccf8e2a0"
            },
            {
              "fixed": "d3a7fa61997db3bf6dadef4c1bd87a4fa782a817"
            },
            {
              "fixed": "5117f236e9e30744338b425395d55913c4500897"
            },
            {
              "fixed": "6e74ac5c596fd246e37eadfc354567179ccbe9aa"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.9.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90019.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: fix null pointer dereference in usb_put_function_instance()\n\nusb_put_function_instance() attempts to dereference fd inside fi struct\nto get mod in uvc_alloc_inst() error path. However, fd is not allocated\nuntil later in try_get_usb_function_instance() after allocating fi in\nuvc_alloc_inst() and thus guranteed to be null in error path. Fix this\nby adding a null check for fi-\u003efd that returns if fd is null.",
  "id": "CVE-2026-90019",
  "modified": "2026-09-18T03:30:49.317040823Z",
  "published": "2026-09-16T10:33:24.173Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0fc54a00954f9f4c3e3d4ffa64a530685d99a39b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a9691fff79bcce95338435599df6d3ae433cfdc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5117f236e9e30744338b425395d55913c4500897"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e6736c049683380f5e20becde498986e9293ca4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e74ac5c596fd246e37eadfc354567179ccbe9aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ea3a073ca97716d4a73df49a3bec1c3ccf8e2a0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a4f4ca7ff32ae24807c83e2a06d62b13378d53c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3a7fa61997db3bf6dadef4c1bd87a4fa782a817"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90019.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90019"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "usb: gadget: fix null pointer dereference in usb_put_function_instance()"
}