CVE-2024-42309 drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes

[
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    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/gma500/psb_intel_lvds.c"
    ],
    "versions": [
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  {
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    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/gma500/psb_intel_lvds.c"
    ],
    "versions": [
      {
        "version": "3.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.3",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.320",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
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      },
      {
        "version": "5.4.282",
        "lessThanOrEqual": "5.4.*",
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      },
      {
        "version": "5.10.224",
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      {
        "version": "5.15.165",
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      {
        "version": "6.1.103",
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      },
      {
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      {
        "version": "6.10.3",
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      {
        "version": "6.11",
        "lessThanOrEqual": "*",
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        "versionType": "original_commit_for_fix"
      }
    ]
  }
]