Vulnerability-Lookup

GHSA-W9J6-GPC8-W3W8

Vulnerability from github – Published: 2024-09-27 15:30 – Updated: 2024-10-07 15:31

Details

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box

[Why] Coverity reports OVERRUN warning. soc.num_states could be 40. But array range of bw_params->clk_table.entries is 8.

[How] Assert if soc.num_states greater than 8.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46811"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-27T13:15:14Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box\n\n[Why]\nCoverity reports OVERRUN warning. soc.num_states could\nbe 40. But array range of bw_params-\u003eclk_table.entries is 8.\n\n[How]\nAssert if soc.num_states greater than 8.",
  "id": "GHSA-w9j6-gpc8-w3w8",
  "modified": "2024-10-07T15:31:38Z",
  "published": "2024-09-27T15:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46811"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/188fd1616ec43033cedbe343b6579e9921e2d898"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4003bac784380fed1f94f197350567eaa73a409d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aba188d6f4ebaf52acf13f204db2bd2c22072504"
    }
  ],
  "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"
    }
  ]
}

CVE-2024-46811 (GCVE-0-2024-46811)

Vulnerability from cvelistv5 – Published: 2024-09-27 12:35 – Updated: 2026-08-05 11:38

Title

drm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box [Why] Coverity reports OVERRUN warning. soc.num_states could be 40. But array range of bw_params->clk_table.entries is 8. [How] Assert if soc.num_states greater than 8.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-29 14:19 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/4003bac784380fed1…
https://git.kernel.org/stable/c/aba188d6f4ebaf52a…
https://git.kernel.org/stable/c/188fd1616ec43033c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 4003bac784380fed1f94f197350567eaa73a409d (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < aba188d6f4ebaf52acf13f204db2bd2c22072504 (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 188fd1616ec43033cedbe343b6579e9921e2d898 (git)
Linux	Linux	Affected: 4.15 Unaffected: 0 , < 4.15 (semver) Unaffected: 6.6.50 , ≤ 6.6.* (semver) Unaffected: 6.10.9 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-46811",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T14:19:04.715171Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-29T14:19:16.904Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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            "drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c",
            "drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c",
            "drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c"
          ],
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              "status": "affected",
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              "versionType": "git"
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            "drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c",
            "drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c",
            "drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.50",
                  "versionStartIncluding": "4.15",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.9",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11",
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                  "vulnerable": true
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              "negate": false,
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box\n\n[Why]\nCoverity reports OVERRUN warning. soc.num_states could\nbe 40. But array range of bw_params-\u003eclk_table.entries is 8.\n\n[How]\nAssert if soc.num_states greater than 8."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is reached only through amdgpu DC initialization paths on the local machine \u2014 `dc_construct()`, `dcn32_init_hw()`, and `get_memclk_states_from_smu()` during hardware init and suspend/resume. There is no network, adjacent-network, or physical-device vector.\nAC:L - On affected hardware the overrun happens deterministically whenever the firmware-reported DPM level count plus the hardcoded DCFCLK STA targets exceeds 8 \u2014 no race to win, no memory layout to groom, and no unlikely precondition. The vulnerable path in dcn302/dcn303 is entirely ungated.\nPR:L - The trigger points (DC hardware init and resume of the DRM device) are reachable in an ordinary unprivileged desktop session via logind-mediated suspend/resume of the GPU, without root in the init namespace. No pre-authentication or remote path exists, so PR:N is not supportable.\nUI:N - The bounding-box update runs automatically during driver hardware init and resume; no victim action such as opening a file or plugging in a display is required.\nS:U - The out-of-bounds read and the resulting corrupted DML bounding box are both entirely within the kernel\u0027s own security authority \u2014 there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - With `num_states` able to reach `DC__VOLTAGE_STATES` (40) against an 8-element `entries[]`, the read runs up to ~1.3 KB past the end of the `struct clk_bw_params` allocation into adjacent slab memory \u2014 far beyond a \"few bytes\" bounded read. Those bytes are copied into `dml.soc.clock_limits[]`, which feeds userspace-observable clock and mode-validation state.\nI:L - There is no out-of-bounds write \u2014 `clock_limits[]` is 40 entries and the index is bounded by that \u2014 but attacker-uncontrolled garbage from adjacent memory is written into the DML soc bounding box and then used to program dispclk/dppclk/dcfclk/socclk, corrupting kernel state that drives real display hardware.\nA:H - Reading past the end of the heap-allocated `clk_bw_params` can fault or oops and reliably trips KASAN, and feeding nonsensical clock/voltage limits into DML can hang or blank the display pipeline. Any such kernel crash or hang is High."
            }
          ]
        }
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      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:38:42.789Z",
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        },
        {
          "url": "https://git.kernel.org/stable/c/188fd1616ec43033cedbe343b6579e9921e2d898"
        }
      ],
      "title": "drm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box",
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    "cveId": "CVE-2024-46811",
    "datePublished": "2024-09-27T12:35:54.445Z",
    "dateReserved": "2024-09-11T15:12:18.283Z",
    "dateUpdated": "2026-08-05T11:38:42.789Z",
    "state": "PUBLISHED"
  },
  "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.

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.
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GHSA-W9J6-GPC8-W3W8

CVE-2024-46811 (GCVE-0-2024-46811)

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