Vulnerability-Lookup

FKIE_CVE-2026-31690

Vulnerability from fkie_nvd - Published: 2026-04-27 18:16 - Updated: 2026-06-17 10:34

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware: thead: Fix buffer overflow and use standard endian macros Addresses two issues in the TH1520 AON firmware protocol driver: 1. Fix a potential buffer overflow where the code used unsafe pointer arithmetic to access the 'mode' field through the 'resource' pointer with an offset. This was flagged by Smatch static checker as: "buffer overflow 'data' 2 <= 3" 2. Replace custom RPC_SET_BE* and RPC_GET_BE* macros with standard kernel endianness conversion macros (cpu_to_be16, etc.) for better portability and maintainability. The functionality was re-tested with the GPU power-up sequence, confirming the GPU powers up correctly and the driver probes successfully. [ 12.702370] powervr ffef400000.gpu: [drm] loaded firmware powervr/rogue_36.52.104.182_v1.fw [ 12.711043] powervr ffef400000.gpu: [drm] FW version v1.0 (build 6645434 OS) [ 12.719787] [drm] Initialized powervr 1.0.0 for ffef400000.gpu on minor 0

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/88c4bd90725557796c15878b7cb70066e9e6b5ab	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bd15a5deb5a7251dc1a0cf9186f0253f7eacdb97	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/thead,th1520-aon.c",
            "include/linux/firmware/thead/thead,th1520-aon.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb",
              "status": "affected",
              "version": "e4b3cbd840e565484d0ad8d260d27c057466ed17",
              "versionType": "git"
            },
            {
              "lessThan": "bd15a5deb5a7251dc1a0cf9186f0253f7eacdb97",
              "status": "affected",
              "version": "e4b3cbd840e565484d0ad8d260d27c057466ed17",
              "versionType": "git"
            },
            {
              "lessThan": "88c4bd90725557796c15878b7cb70066e9e6b5ab",
              "status": "affected",
              "version": "e4b3cbd840e565484d0ad8d260d27c057466ed17",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/thead,th1520-aon.c",
            "include/linux/firmware/thead/thead,th1520-aon.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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              "versionEndExcluding": "6.18.23",
              "versionStartIncluding": "6.15",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "1490EF9B-9080-481C-8D22-1306AAE664E4",
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            },
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              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
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              "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64",
              "vulnerable": true
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            {
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              "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34",
              "vulnerable": true
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: thead: Fix buffer overflow and use standard endian macros\n\nAddresses two issues in the TH1520 AON firmware protocol driver:\n\n1. Fix a potential buffer overflow where the code used unsafe pointer\n   arithmetic to access the \u0027mode\u0027 field through the \u0027resource\u0027 pointer\n   with an offset. This was flagged by Smatch static checker as:\n   \"buffer overflow \u0027data\u0027 2 \u003c= 3\"\n\n2. Replace custom RPC_SET_BE* and RPC_GET_BE* macros with standard\n   kernel endianness conversion macros (cpu_to_be16, etc.) for better\n   portability and maintainability.\n\nThe functionality was re-tested with the GPU power-up sequence,\nconfirming the GPU powers up correctly and the driver probes\nsuccessfully.\n\n[   12.702370] powervr ffef400000.gpu: [drm] loaded firmware\npowervr/rogue_36.52.104.182_v1.fw\n[   12.711043] powervr ffef400000.gpu: [drm] FW version v1.0 (build\n6645434 OS)\n[   12.719787] [drm] Initialized powervr 1.0.0 for ffef400000.gpu on\nminor 0"
    }
  ],
  "id": "CVE-2026-31690",
  "lastModified": "2026-06-17T10:34:14.837",
  "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-04-27T18:16:54.507",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/88c4bd90725557796c15878b7cb70066e9e6b5ab"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      ],
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-31690 (GCVE-0-2026-31690)

Vulnerability from cvelistv5 – Published: 2026-04-27 17:34 – Updated: 2026-05-11 22:13

Title

firmware: thead: Fix buffer overflow and use standard endian macros

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/fbdb43f6bb2a15ed3…
https://git.kernel.org/stable/c/bd15a5deb5a7251dc…
https://git.kernel.org/stable/c/88c4bd90725557796…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e4b3cbd840e565484d0ad8d260d27c057466ed17 , < fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb (git) Affected: e4b3cbd840e565484d0ad8d260d27c057466ed17 , < bd15a5deb5a7251dc1a0cf9186f0253f7eacdb97 (git) Affected: e4b3cbd840e565484d0ad8d260d27c057466ed17 , < 88c4bd90725557796c15878b7cb70066e9e6b5ab (git)
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 6.18.23 , ≤ 6.18.* (semver) Unaffected: 6.19.13 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/thead,th1520-aon.c",
            "include/linux/firmware/thead/thead,th1520-aon.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb",
              "status": "affected",
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              "versionType": "git"
            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/thead,th1520-aon.c",
            "include/linux/firmware/thead/thead,th1520-aon.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.15"
            },
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            },
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              "status": "unaffected",
              "version": "6.18.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
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          ]
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      ],
      "cpeApplicability": [
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        }
      ],
      "providerMetadata": {
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        "shortName": "Linux"
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      "title": "firmware: thead: Fix buffer overflow and use standard endian macros",
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    "dateUpdated": "2026-05-11T22:13:45.476Z",
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.