{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-46698",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-46698"
  ],
  "published": "2024-09-13T05:30:51Z",
  "summary": "video/aperture: optionally match the device in sysfb_disable()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo/aperture: optionally match the device in sysfb_disable()\n\nIn aperture_remove_conflicting_pci_devices(), we currently only\ncall sysfb_disable() on vga class devices.  This leads to the\nfollowing problem when the pimary device is not VGA compatible:\n\n1. A PCI device with a non-VGA class is the boot display\n2. That device is probed first and it is not a VGA device so\n   sysfb_disable() is not called, but the device resources\n   are freed by aperture_detach_platform_device()\n3. Non-primary GPU has a VGA class and it ends up calling sysfb_disable()\n4. NULL pointer dereference via sysfb_disable() since the resources\n   have already been freed by aperture_detach_platform_device() when\n   it was called by the other device.\n\nFix this by passing a device pointer to sysfb_disable() and checking\nthe device to determine if we should execute it or not.\n\nv2: Fix build when CONFIG_SCREEN_INFO is not set\nv3: Move device check into the mutex\n    Drop primary variable in aperture_remove_conflicting_pci_devices()\n    Drop __init on pci sysfb_pci_dev_is_enabled()",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-46698"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/17e78f43de0c6da34204cc858b4cc05671ea9acf"
    },
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    }
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  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-24T06:48:58Z"
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}