{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  ALSA: ump: do not touch legacy_rmidi before it exists  snd_ump_parse_endpoint() sets ump-\u003eparsed on every exit, including error, before the caller attaches the legacy rawmidi device. ump_handle_ep_name_msg() then treats parsed as \"legacy_rmidi is live\" and calls ump_legacy_set_rawmidi_name(), which snprintf()s into ump-\u003elegacy_rmidi-\u003ename. If a UMP packet arrives in that window (IRQ path from snd_ump_receive), legacy_rmidi is still NULL (KASAN null-ptr-deref in snprintf).  Guard the legacy helpers. parsed only means endpoint info was parsed, not that legacy_rmidi exists.",
  "id": "DEBIAN-CVE-2026-98086",
  "modified": "2026-09-26T04:47:29.934354196Z",
  "published": "2026-09-25T11:17:38.200Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-98086"
    }
  ],
  "upstream": [
    "CVE-2026-98086"
  ]
}