{
  "cveId": "CVE-2026-99182",
  "url": "https://patchblox.com/security/cve/CVE-2026-99182",
  "summary": "CVE-2026-99182 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-99182, released November 3, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "ASoC: SOF: ipc4-topology: Fix shift-out-of-bounds for aggregated ALH capture",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ASoC: SOF: ipc4-topology: Fix shift-out-of-bounds for aggregated ALH capture  When ch_count is smaller than blob-\u003Ealh_cfg.device_count (e.g. a mono capture stream, such as a SmartMic, aggregated across multiple SDW links), step = ch_count / blob-\u003Ealh_cfg.device_count truncates to 0. The subsequent GENMASK(step - 1, 0) then underflows step - 1 (u32) to UINT_MAX, causing GENMASK()\u0027s internal shift to use an out-of-bounds exponent:    UBSAN: shift-out-of-bounds in sound/soc/sof/ipc4-topology.c:2363:13   shift exponent 18446744069414584384 is too large for 64-bit type \u0027long unsigned int\u0027  Treat ch_count \u003C device_count the same way as the existing \u0022channels equal to output reference channels\u0022 case: apply the same ch_mask to every aggregated device instead of trying to split channels that can\u0027t be evenly divided.",
  "published": "2026-10-28T11:17:39Z",
  "severity": "Moderate",
  "cvss": 7.1,
  "epss": 0.00174,
  "epssPercentile": 0.06927,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-99182",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-99182",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-99182",
      "released": "2026-11-03T18:58:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.13-1",
      "fix": "DEBIAN-CVE-2026-99182",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-99182",
      "released": "2026-11-03T18:58:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}