{
  "cveId": "CVE-2026-53172",
  "url": "https://patchblox.com/security/cve/CVE-2026-53172",
  "summary": "CVE-2026-53172 is fixed in linux on 1 platform by DEBIAN-CVE-2026-53172 (version 7.0.13-1), released June 28, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  accel/ethosu: fix IFM region index out-of-bounds...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  accel/ethosu: fix IFM region index out-of-bounds in command stream parser  NPU_SET_IFM_REGION extracts the region index with param \u0026 0x7f, giving a maximum value of 127. However region_size[] and output_region[] in struct ethosu_validated_cmdstream_info are both sized to NPU_BASEP_REGION_MAX (8), giving valid indices [0..7].  Every other region assignment in the same switch uses param \u0026 0x7:   NPU_SET_OFM_REGION:  st.ofm.region  = param \u0026 0x7;   NPU_SET_IFM2_REGION: st.ifm2.region = param \u0026 0x7;   NPU_SET_WEIGHT_REGION: st.weight[0].region = param \u0026 0x7;   NPU_SET_SCALE_REGION:  st.scale[0].region  = param \u0026 0x7;  The 0x7f mask on IFM is inconsistent and appears to be a typo.  feat_matrix_length() and calc_sizes() use the region index directly as an array subscript into the kzalloc\u0027d info struct:   info-\u003Eregion_size[fm-\u003Eregion] = max(...);  A userspace caller supplying NPU_SET_IFM_REGION with param \u003E 7 causes a write up to 127*8 = 1016 bytes past the start of region_size[], corrupting adjacent kernel heap data.  Fix by applying the same \u0026 0x7 mask used by all other region assignments.",
  "published": "2026-06-25T09:16:34Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00165,
  "epssPercentile": 0.05752,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.13-1",
      "fix": "DEBIAN-CVE-2026-53172",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53172",
      "released": "2026-06-28T17:47:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}