{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ethosu/ethosu_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "db6cb3e35cebf487f9a78ebd4cfa4b83708ff40d",
              "status": "affected",
              "version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b",
              "versionType": "git"
            },
            {
              "lessThan": "c0837b9cf6eabbad8b8cbddaff1a46a6d0a2e29d",
              "status": "affected",
              "version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ethosu/ethosu_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: fix OOB write in ethosu_gem_cmdstream_copy_and_validate()\n\nThe command stream parsing loop increments the index variable a second\ntime when a 64-bit command word is encountered (bit 14 set), but does\nnot re-check the loop bound before writing the second word:\n\n    for (i = 0; i \u003c size / 4; i++) {\n        bocmds[i] = cmds[0];\n        if (cmd \u0026 0x4000) {\n            i++;\n            bocmds[i] = cmds[1];   /* unchecked */\n        }\n    }\n\nThe buffer bocmds is backed by a DMA allocation of exactly size bytes\nfrom drm_gem_dma_create(ddev, size), giving valid indices [0, size/4-1].\n\nWhen i == size/4 - 1 on entry to an iteration and bit 14 of cmds[0] is\nset, bocmds[size/4-1] is written in bounds, i is then incremented to\nsize/4, and bocmds[size/4] writes four bytes past the end of the\nallocation.\n\nUserspace controls both the buffer contents and the size argument via\nthe ioctl, making this a userspace-triggerable heap out-of-bounds write.\n\nFix by checking the incremented index against the buffer bound before\nthe second write and returning -EINVAL if the buffer is too small to\ncontain the extended command."
    }
  ],
  "id": "CVE-2026-53173",
  "lastModified": "2026-06-30T14:44:27.313",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-25T09:16:34.643",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c0837b9cf6eabbad8b8cbddaff1a46a6d0a2e29d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/db6cb3e35cebf487f9a78ebd4cfa4b83708ff40d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-53173"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T09:16:34Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: fix OOB write in ethosu_gem_cmdstream_copy_and_validate()\n\nThe command stream parsing loop increments the index variable a second\ntime when a 64-bit command word is encountered (bit 14 set), but does\nnot re-check the loop bound before writing the second word:\n\n    for (i = 0; i \u003c size / 4; i++) {\n        bocmds[i] = cmds[0];\n        if (cmd \u0026 0x4000) {\n            i++;\n            bocmds[i] = cmds[1];   /* unchecked */\n        }\n    }\n\nThe buffer bocmds is backed by a DMA allocation of exactly size bytes\nfrom drm_gem_dma_create(ddev, size), giving valid indices [0, size/4-1].\n\nWhen i == size/4 - 1 on entry to an iteration and bit 14 of cmds[0] is\nset, bocmds[size/4-1] is written in bounds, i is then incremented to\nsize/4, and bocmds[size/4] writes four bytes past the end of the\nallocation.\n\nUserspace controls both the buffer contents and the size argument via\nthe ioctl, making this a userspace-triggerable heap out-of-bounds write.\n\nFix by checking the incremented index against the buffer bound before\nthe second write and returning -EINVAL if the buffer is too small to\ncontain the extended command.",
  "id": "GHSA-8652-hhjr-7fh7",
  "modified": "2026-06-28T09:31:43Z",
  "published": "2026-06-25T09:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53173"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0837b9cf6eabbad8b8cbddaff1a46a6d0a2e29d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db6cb3e35cebf487f9a78ebd4cfa4b83708ff40d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}