Vulnerability-Lookup

FKIE_CVE-2026-53170

Vulnerability from fkie_nvd - Published: 2026-06-25 09:16 - Updated: 2026-07-06 18:24

Severity

8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: reject DMA commands with uninitialized length cmd_state_init() initializes the command state with memset(0xff), leaving dma->len at U64_MAX to signal missing setup. The only setter is NPU_SET_DMA0_LEN; if userspace omits this command and issues NPU_OP_DMA_START, dma->len remains U64_MAX. In dma_length(), a positive stride added to U64_MAX wraps to a small value. With size0 == 1, check_mul_overflow() does not trigger and dma_length() returns 0 instead of U64_MAX. The caller's U64_MAX check then passes, region_size[] stays 0, and the bounds check in ethosu_job.c is bypassed, allowing hardware to execute DMA with stale physical addresses. Fix by checking for U64_MAX at the start of dma_length() before any arithmetic, consistent with the sentinel value used throughout the driver to detect uninitialized fields.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d9d021218162b6c4fe0bdf42b2b340f1aae23a12	Patch
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fb25c76a820ca8a547aa478bfb503da0a11494ab	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1

JSON

To clipboard

{
  "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": "fb25c76a820ca8a547aa478bfb503da0a11494ab",
              "status": "affected",
              "version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b",
              "versionType": "git"
            },
            {
              "lessThan": "d9d021218162b6c4fe0bdf42b2b340f1aae23a12",
              "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"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6A64BF9F-3BCA-42FD-98CB-8F03474D2B1E",
              "versionEndExcluding": "7.0.13",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6",
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              "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97",
              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9",
              "vulnerable": true
            },
            {
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            {
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    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: reject DMA commands with uninitialized length\n\ncmd_state_init() initializes the command state with memset(0xff),\nleaving dma-\u003elen at U64_MAX to signal missing setup. The only setter\nis NPU_SET_DMA0_LEN; if userspace omits this command and issues\nNPU_OP_DMA_START, dma-\u003elen remains U64_MAX.\n\nIn dma_length(), a positive stride added to U64_MAX wraps to a small\nvalue. With size0 == 1, check_mul_overflow() does not trigger and\ndma_length() returns 0 instead of U64_MAX. The caller\u0027s U64_MAX check\nthen passes, region_size[] stays 0, and the bounds check in\nethosu_job.c is bypassed, allowing hardware to execute DMA with stale\nphysical addresses.\n\nFix by checking for U64_MAX at the start of dma_length() before any\narithmetic, consistent with the sentinel value used throughout the\ndriver to detect uninitialized fields."
    }
  ],
  "id": "CVE-2026-53170",
  "lastModified": "2026-07-06T18:24:43.010",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-25T09:16:34.370",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d9d021218162b6c4fe0bdf42b2b340f1aae23a12"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fb25c76a820ca8a547aa478bfb503da0a11494ab"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-53170 (GCVE-0-2026-53170)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-28 06:39

Title

accel/ethosu: reject DMA commands with uninitialized length

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/fb25c76a820ca8a54…
https://git.kernel.org/stable/c/d9d021218162b6c4f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b , < fb25c76a820ca8a547aa478bfb503da0a11494ab (git) Affected: 5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b , < d9d021218162b6c4fe0bdf42b2b340f1aae23a12 (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "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": "fb25c76a820ca8a547aa478bfb503da0a11494ab",
              "status": "affected",
              "version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b",
              "versionType": "git"
            },
            {
              "lessThan": "d9d021218162b6c4fe0bdf42b2b340f1aae23a12",
              "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: reject DMA commands with uninitialized length\n\ncmd_state_init() initializes the command state with memset(0xff),\nleaving dma-\u003elen at U64_MAX to signal missing setup. The only setter\nis NPU_SET_DMA0_LEN; if userspace omits this command and issues\nNPU_OP_DMA_START, dma-\u003elen remains U64_MAX.\n\nIn dma_length(), a positive stride added to U64_MAX wraps to a small\nvalue. With size0 == 1, check_mul_overflow() does not trigger and\ndma_length() returns 0 instead of U64_MAX. The caller\u0027s U64_MAX check\nthen passes, region_size[] stays 0, and the bounds check in\nethosu_job.c is bypassed, allowing hardware to execute DMA with stale\nphysical addresses.\n\nFix by checking for U64_MAX at the start of dma_length() before any\narithmetic, consistent with the sentinel value used throughout the\ndriver to detect uninitialized fields."
        }
      ],
      "metrics": [
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d9d021218162b6c4fe0bdf42b2b340f1aae23a12"
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      "title": "accel/ethosu: reject DMA commands with uninitialized length",
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  "cveMetadata": {
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    "cveId": "CVE-2026-53170",
    "datePublished": "2026-06-25T08:38:48.728Z",
    "dateReserved": "2026-06-09T07:44:35.389Z",
    "dateUpdated": "2026-06-28T06:39:41.997Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-53170

CVE-2026-53170 (GCVE-0-2026-53170)

Tags

Sightings

Nomenclature