{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-46743",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-46743"
  ],
  "published": "2024-09-18T07:17:19Z",
  "summary": "of/irq: Prevent device address out-of-bounds read in interrupt map walk",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nof/irq: Prevent device address out-of-bounds read in interrupt map walk\n\nWhen of_irq_parse_raw() is invoked with a device address smaller than\nthe interrupt parent node (from #address-cells property), KASAN detects\nthe following out-of-bounds read when populating the initial match table\n(dyndbg=\"func of_irq_parse_* +p\"):\n\n  OF: of_irq_parse_one: dev=/soc@0/picasso/watchdog, index=0\n  OF:  parent=/soc@0/pci@878000000000/gpio0@17,0, intsize=2\n  OF:  intspec=4\n  OF: of_irq_parse_raw: ipar=/soc@0/pci@878000000000/gpio0@17,0, size=2\n  OF:  -> addrsize=3\n  ==================================================================\n  BUG: KASAN: slab-out-of-bounds in of_irq_parse_raw+0x2b8/0x8d0\n  Read of size 4 at addr ffffff81beca5608 by task bash/764\n\n  CPU: 1 PID: 764 Comm: bash Tainted: G           O       6.1.67-484c613561-nokia_sm_arm64 #1\n  Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.01-12.24.03-dirty 01/01/2023\n  Call trace:\n   dump_backtrace+0xdc/0x130\n   show_stack+0x1c/0x30\n   dump_stack_lvl+0x6c/0x84\n   print_report+0x150/0x448\n   kasan_report+0x98/0x140\n   __asan_load4+0x78/0xa0\n   of_irq_parse_raw+0x2b8/0x8d0\n   of_irq_parse_one+0x24c/0x270\n   parse_interrupts+0xc0/0x120\n   of_fwnode_add_links+0x100/0x2d0\n   fw_devlink_parse_fwtree+0x64/0xc0\n   device_add+0xb38/0xc30\n   of_device_add+0x64/0x90\n   of_platform_device_create_pdata+0xd0/0x170\n   of_platform_bus_create+0x244/0x600\n   of_platform_notify+0x1b0/0x254\n   blocking_notifier_call_chain+0x9c/0xd0\n   __of_changeset_entry_notify+0x1b8/0x230\n   __of_changeset_apply_notify+0x54/0xe4\n   of_overlay_fdt_apply+0xc04/0xd94\n   ...\n\n  The buggy address belongs to the object at ffffff81beca5600\n   which belongs to the cache kmalloc-128 of size 128\n  The buggy address is located 8 bytes inside of\n   128-byte region [ffffff81beca5600, ffffff81beca5680)\n\n  The buggy address belongs to the physical page:\n  page:00000000230d3d03 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1beca4\n  head:00000000230d3d03 order:1 compound_mapcount:0 compound_pincount:0\n  flags: 0x8000000000010200(slab|head|zone=2)\n  raw: 8000000000010200 0000000000000000 dead000000000122 ffffff810000c300\n  raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000\n  page dumped because: kasan: bad access detected\n\n  Memory state around the buggy address:\n   ffffff81beca5500: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n   ffffff81beca5580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n  >ffffff81beca5600: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n                        ^\n   ffffff81beca5680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n   ffffff81beca5700: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc\n  ==================================================================\n  OF:  -> got it !\n\nPrevent the out-of-bounds read by copying the device address into a\nbuffer of sufficient size.",
  "affected": [
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        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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        "1:6.6.20-1+rpt1",
        "1:6.6.28-1+rpt1",
        "1:6.6.31-1+rpt1",
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-46743"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d2a79494d8a5262949736fb2c3ac44d20a51b0d8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/defcaa426ba0bc89ffdafb799d2e50b52f74ffc4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9d1e9f0876b03d74d44513a0ed3ed15ef8f2fed5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/baaf26723beab3a04da578d3008be3544f83758f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8ff351ea12e918db1373b915c4c268815929cbe5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7ead730af11ee7da107f16fc77995613c58d292d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bf68acd840b6a5bfd3777e0d5aaa204db6b461a9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b739dffa5d570b411d4bdf4bb9b8dfd6b7d72305"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z"
  }
}