fkie_cve-2024-49905
Vulnerability from fkie_nvd
Published
2024-10-21 18:15
Modified
2024-10-24 03:43
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/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 null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2) This commit adds a null check for the 'afb' variable in the amdgpu_dm_plane_handle_cursor_update function. Previously, 'afb' was assumed to be null, but was used later in the code without a null check. This could potentially lead to a null pointer dereference. Changes since v1: - Moved the null check for 'afb' to the line where 'afb' is used. (Alex) Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed 'afb' could be null (see line 1252)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75839e2365b666ff4e1b9047e442cab138eac4f6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9132882eaae4d21d2fc5843b3308379a481ebdf0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bd0e24e5e608ccb9fdda300bb974496d6d8cf57dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd9e9e0852d501f169aa3bb34e4b413d2eb48c37Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e4e26cbe34d7c1c1db5fb7b3101573c29866439fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "180292D6-C3A4-4883-98A3-77F4D56F8081",
              "versionEndExcluding": "6.1.113",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add null check for \u0027afb\u0027 in amdgpu_dm_plane_handle_cursor_update (v2)\n\nThis commit adds a null check for the \u0027afb\u0027 variable in the\namdgpu_dm_plane_handle_cursor_update function. Previously, \u0027afb\u0027 was\nassumed to be null, but was used later in the code without a null check.\nThis could potentially lead to a null pointer dereference.\n\nChanges since v1:\n- Moved the null check for \u0027afb\u0027 to the line where \u0027afb\u0027 is used. (Alex)\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed \u0027afb\u0027 could be null (see line 1252)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Agregar comprobaci\u00f3n NULL para \u0027afb\u0027 en amdgpu_dm_plane_handle_cursor_update (v2) Esta confirmaci\u00f3n agrega una comprobaci\u00f3n NULL para la variable \u0027afb\u0027 en la funci\u00f3n amdgpu_dm_plane_handle_cursor_update. Anteriormente, se supon\u00eda que \u0027afb\u0027 era nulo, pero se us\u00f3 m\u00e1s adelante en el c\u00f3digo sin una comprobaci\u00f3n NULL. Esto podr\u00eda conducir potencialmente a una desreferencia de puntero nulo. Cambios desde v1: - Se movi\u00f3 la comprobaci\u00f3n NULL para \u0027afb\u0027 a la l\u00ednea donde se usa \u0027afb\u0027. (Alex) Corrige lo siguiente: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 Error amdgpu_dm_plane_handle_cursor_update(): anteriormente asumimos que \u0027afb\u0027 pod\u00eda ser nulo (ver l\u00ednea 1252)"
    }
  ],
  "id": "CVE-2024-49905",
  "lastModified": "2024-10-24T03:43:35.477",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-10-21T18:15:13.033",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/75839e2365b666ff4e1b9047e442cab138eac4f6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "tags": [
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    }
  ],
  "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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