{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.5-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  ALSA: usb-audio: qcom: reject stream disable with no active interface  handle_uaudio_stream_req() resolves an interface index with info_idx_from_ifnum(), which returns -EINVAL when no interface matches. The enable branch and the response: cleanup label both guard against a negative index, but the disable branch does not: it forms info = \u0026uadev[pcm_card_num].info[info_idx] and dereferences it.  uadev[].info is a pointer allocated only when a stream is first enabled, so a negative info_idx on the disable path is unsafe in two ways:   - If the card was never enabled, .info is NULL and \u0026info[-EINVAL] is a    wild pointer; reading info-\u003edata_ep_pipe faults (kernel oops).   - If the card was enabled at least once (.info allocated) and the    disable names an interface that does not match, \u0026info[-EINVAL] points    before the allocation; info-\u003edata_ep_pipe / info-\u003esync_ep_pipe are an    out-of-bounds slab read and, when non-zero, an out-of-bounds 4-byte    write (both pipe fields are cleared to 0). That is memory corruption,    not just a NULL dereference.  The request is reachable from unprivileged local userspace over AF_QIPCRTR. Reject a disable request with no resolved interface, matching the guard the enable path already has.",
  "id": "DEBIAN-CVE-2026-72446",
  "modified": "2026-09-14T16:47:27.507346462Z",
  "published": "2026-08-15T06:22:18.500Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-72446"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-72446"
  ]
}