{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "392c985c6b03dfdf4904c0d464f18735ca3c4df8"
            },
            {
              "fixed": "1e16e82581521a2fe20eda29bdc9e75286f7c950"
            },
            {
              "fixed": "c73cb5b7c159246dd572277c668851a56e516019"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90116.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: mtpav: shut down output timer before card teardown\n\nsnd_mtpav_output_timer() rearms chip-\u003etimer while holding\nchip-\u003espinlock and accesses the card-private mtpav state.\n\nsnd_mtpav_free() currently takes the same lock and calls\ntimer_delete() when the timer is active. This only removes a\npending timer; it does not wait for a callback that is already\nrunning and does not prevent the callback from rearming the timer.\n\nA callback running on another CPU can therefore continue after\nsnd_mtpav_free() releases the lock and access the card-private\nstate while the card is being torn down. It can also rearm the\ntimer after timer_delete() has returned.\n\nCall timer_shutdown_sync() without holding chip-\u003espinlock. This\nwaits for any running callback to finish and prevents further\nrearming before the card-private mtpav state is released.",
  "id": "CVE-2026-90116",
  "modified": "2026-09-19T03:30:25.741275529Z",
  "published": "2026-09-17T16:06:22.065Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e16e82581521a2fe20eda29bdc9e75286f7c950"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/392c985c6b03dfdf4904c0d464f18735ca3c4df8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c73cb5b7c159246dd572277c668851a56e516019"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90116.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90116"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ALSA: mtpav: shut down output timer before card teardown"
}