FKIE_CVE-2024-27040

Vulnerability from fkie_nvd - Published: 2024-05-01 13:15 - Updated: 2025-04-08 18:39
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()' In the first if statement, we're checking if 'replay' is NULL. But in the second if statement, we're not checking if 'replay' is NULL again before calling replay->funcs->replay_set_power_opt(). if (replay == NULL && force_static) return false; ... if (link->replay_settings.replay_feature_enabled && replay->funcs->replay_set_power_opt) { replay->funcs->replay_set_power_opt(replay, *power_opts, panel_inst); link->replay_settings.replay_power_opt_active = *power_opts; } If 'replay' is NULL, this will cause a null pointer dereference. Fixes the below found by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active() error: we previously assumed 'replay' could be null (see line 887)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5B28A88F-F85F-4008-8F7C-44FC9152916E",
              "versionEndExcluding": "6.6.23",
              "versionStartIncluding": "6.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9B95D3A6-E162-47D5-ABFC-F3FA74FA7CFD",
              "versionEndExcluding": "6.7.11",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "6.8.2",
              "versionStartIncluding": "6.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add \u0027replay\u0027 NULL check in \u0027edp_set_replay_allow_active()\u0027\n\nIn the first if statement, we\u0027re checking if \u0027replay\u0027 is NULL. But in\nthe second if statement, we\u0027re not checking if \u0027replay\u0027 is NULL again\nbefore calling replay-\u003efuncs-\u003ereplay_set_power_opt().\n\nif (replay == NULL \u0026\u0026 force_static)\n    return false;\n\n...\n\nif (link-\u003ereplay_settings.replay_feature_enabled \u0026\u0026\n    replay-\u003efuncs-\u003ereplay_set_power_opt) {\n\treplay-\u003efuncs-\u003ereplay_set_power_opt(replay, *power_opts, panel_inst);\n\tlink-\u003ereplay_settings.replay_power_opt_active = *power_opts;\n}\n\nIf \u0027replay\u0027 is NULL, this will cause a null pointer dereference.\n\nFixes the below found by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active() error: we previously assumed \u0027replay\u0027 could be null (see line 887)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/amd/display: agregue la verificaci\u00f3n NULL \u0027replay\u0027 en \u0027edp_set_replay_allow_active()\u0027 En la primera declaraci\u00f3n if, estamos verificando si \u0027replay\u0027 es NULL. Pero en la segunda declaraci\u00f3n if, no estamos verificando si \u0027replay\u0027 es NULL nuevamente antes de llamar a replay-\u0026gt;funcs-\u0026gt;replay_set_power_opt(). si (repetici\u00f3n == NULL \u0026amp;\u0026amp; force_static) devuelve falso; ... if (enlace-\u0026gt;replay_settings.replay_feature_enabled \u0026amp;\u0026amp; replay-\u0026gt;funcs-\u0026gt;replay_set_power_opt) { replay-\u0026gt;funcs-\u0026gt;replay_set_power_opt(replay, *power_opts, panel_inst); enlace-\u0026gt;replay_settings.replay_power_opt_active = *power_opts; } Si \u0027repetici\u00f3n\u0027 es NULL, esto provocar\u00e1 una desreferencia del puntero nulo. Corrige el siguiente error encontrado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active(): previamente asumimos que \u0027repetir\u0027 podr\u00eda ser nulo (ver l\u00ednea 887)"
    }
  ],
  "id": "CVE-2024-27040",
  "lastModified": "2025-04-08T18:39:21.683",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-05-01T13:15:49.600",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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