{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1b65088958cadab04d5d34a8615e2466b1b48ecb"
            },
            {
              "fixed": "013448eb7b0d0b91d6168685dab10e9b41baa825"
            },
            {
              "fixed": "4305e4b52acc0ca67dcfdf8f73dd943dab508ae8"
            },
            {
              "fixed": "04df0232a6976845cd9c9e83b6c26215759be667"
            },
            {
              "fixed": "ecd2f83a4ddc078901e7104144cb6c5e5db3b7cf"
            },
            {
              "fixed": "cd17d6ff7b7d2b1dd9bcc80ae7b4a83773f918c6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.12.106"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.47"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.11"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "7.2.0"
            },
            {
              "fixed": "7.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80815.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: scarlett2: Use a private URB for the notification endpoint\n\nscarlett2_init_notify() used mixer-\u003eurb, which\nsnd_usb_mixer_status_create() allocates for the UAC2 status interrupt\nendpoint and mixer.c manages. On a device with that endpoint, the\n\"already in use\" check fires on the status URB and returns 0 for\nsuccess without doing anything. No notification URB is submitted, and\ncmd_done is left zeroed because it is initialised past that check and\nnowhere else. scarlett2_usb_init() then issues SCARLETT2_USB_INIT_1\nand wait_for_completion_timeout() would crash adding to the zeroed\nwait.head.\n\nUse a separate URB in scarlett2_data, as done for FCP, and initialise\ncmd_done in scarlett2_init_private(). mixer.c was also freeing the URB\nin snd_usb_mixer_free() and resubmitting it in\nsnd_usb_mixer_activate(), so scarlett2 must now do both: add\nscarlett2_cleanup_urb(), called from private_free and private_suspend,\nand a private_resume callback to re-establish the URB after resume.\nscarlett2_init_notify() is reached from there, and the URB kill path\nin scarlett2_notify() completes cmd_done, leaving a stale count that\nwould satisfy the next command's wait before the device ACKs. Use\nreinit_completion() to clear it.\n\nAlso free the URB if the transfer buffer allocation fails, and both if\nusb_submit_urb() fails. Move scarlett2_init_notify() up next to\nscarlett2_cleanup_urb() so scarlett2_init_private() can reference it\nwithout a forward declaration.",
  "id": "CVE-2026-80815",
  "modified": "2026-09-06T03:31:00.809766318Z",
  "published": "2026-09-04T15:13:35.740Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/013448eb7b0d0b91d6168685dab10e9b41baa825"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04df0232a6976845cd9c9e83b6c26215759be667"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4305e4b52acc0ca67dcfdf8f73dd943dab508ae8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd17d6ff7b7d2b1dd9bcc80ae7b4a83773f918c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecd2f83a4ddc078901e7104144cb6c5e5db3b7cf"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80815.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80815"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ALSA: scarlett2: Use a private URB for the notification endpoint"
}