{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0f9df939385527049c8062a099fbfa1479fe7ce0"
            },
            {
              "fixed": "ddb1b0d5d858584ed0d3a5aaa042ee693998c7e2"
            },
            {
              "fixed": "85dd5e8bd6776d02854f2847d83429f1f712e99c"
            },
            {
              "fixed": "502a7f5b79b7ba751988789e982924f8f496129f"
            },
            {
              "fixed": "bec7708eb3b5295d12e931db24381b7c94c72953"
            },
            {
              "fixed": "8e88ed8a374de67270d38689f2a81018909cafbb"
            },
            {
              "fixed": "9897b7da8c0ad8356c1b8649379fcb5a689462cb"
            },
            {
              "fixed": "38f822ddce9355893d734279a26ddec45182197e"
            },
            {
              "fixed": "bdab5605259ba5d6ff927c1a85cc83eb3ecfdacc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1efa8a5aac93d9e67075995d7d4902b57ce184f7"
            },
            {
              "last_affected": "e7a4b0efe62e56a0acc81d16091c6efc2a282be8"
            },
            {
              "last_affected": "065f5561a20659cf17aae5f72b32b5c2695c8e00"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3.2.36"
            },
            {
              "fixed": "3.3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3.4.25"
            },
            {
              "fixed": "3.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3.7.2"
            },
            {
              "fixed": "3.8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.8.0"
            },
            {
              "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": "6.12.109"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89733.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()\n\nIn uvc_function_bind() error path, we use usb_ep_free_request which\nuses uvc-\u003econtrol_req but does not set it to NULL afterwards. Thus,\nuvc-\u003econtrol_req is a dangling pointer causing a UAF. Also we do not set\nthe uvc-\u003econtrol_buf pointer to NULL after freeing it, which is another\ndangling pointer. Fix it by setting uvc-\u003econtrol_req to NULL after we run\nusb_ep_free_request() and uvc-\u003econtrol_buf to NULL after kfree. Do the\nsame for uvc_function_unbind().",
  "id": "CVE-2026-89733",
  "modified": "2026-09-15T03:31:02.050303822Z",
  "published": "2026-09-11T19:46:42.613Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38f822ddce9355893d734279a26ddec45182197e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/502a7f5b79b7ba751988789e982924f8f496129f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85dd5e8bd6776d02854f2847d83429f1f712e99c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e88ed8a374de67270d38689f2a81018909cafbb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9897b7da8c0ad8356c1b8649379fcb5a689462cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bdab5605259ba5d6ff927c1a85cc83eb3ecfdacc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bec7708eb3b5295d12e931db24381b7c94c72953"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddb1b0d5d858584ed0d3a5aaa042ee693998c7e2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89733.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89733"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()"
}