{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-39509",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-39509"
  ],
  "published": "2024-07-12T12:21:19Z",
  "summary": "HID: core: remove unnecessary WARN_ON() in implement()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: remove unnecessary WARN_ON() in implement()\n\nSyzkaller hit a warning [1] in a call to implement() when trying\nto write a value into a field of smaller size in an output report.\n\nSince implement() already has a warn message printed out with the\nhelp of hid_warn() and value in question gets trimmed with:\n\t...\n\tvalue &= m;\n\t...\nWARN_ON may be considered superfluous. Remove it to suppress future\nsyzkaller triggers.\n\n[1]\nWARNING: CPU: 0 PID: 5084 at drivers/hid/hid-core.c:1451 implement drivers/hid/hid-core.c:1451 [inline]\nWARNING: CPU: 0 PID: 5084 at drivers/hid/hid-core.c:1451 hid_output_report+0x548/0x760 drivers/hid/hid-core.c:1863\nModules linked in:\nCPU: 0 PID: 5084 Comm: syz-executor424 Not tainted 6.9.0-rc7-syzkaller-00183-gcf87f46fd34d #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024\nRIP: 0010:implement drivers/hid/hid-core.c:1451 [inline]\nRIP: 0010:hid_output_report+0x548/0x760 drivers/hid/hid-core.c:1863\n...\nCall Trace:\n <TASK>\n __usbhid_submit_report drivers/hid/usbhid/hid-core.c:591 [inline]\n usbhid_submit_report+0x43d/0x9e0 drivers/hid/usbhid/hid-core.c:636\n hiddev_ioctl+0x138b/0x1f00 drivers/hid/usbhid/hiddev.c:726\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:904 [inline]\n __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n...",
  "affected": [
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      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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        "1:6.1.47-1+rpt4",
        "1:6.1.54-1+rpt2",
        "1:6.1.58-1+rpt2",
        "1:6.1.63-1+rpt1",
        "1:6.1.73-1+rpt1",
        "1:6.6.20-1+rpt1",
        "1:6.6.28-1+rpt1",
        "1:6.6.31-1+rpt1"
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            "assessment": "upstream version (no usable Linux commit)",
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          },
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            "assessment": "commit ancestry (strak rule)",
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    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-39509"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/955b3764671f3f157215194972d9c01a3a4bd316"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f9db5fbeffb951cac3f0fb1c2eeffb79785399ca"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/33f6832798dd3297317901cc1db556ac3ae80c24"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8bac61934cd563b073cd30b8cf6d5c758ab5ab26"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bfd546fc7fd76076f81bf41b85b51ceda30949fd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/30f76bc468b9b2cbbd5d3eb482661e3e4798893f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/655c6de2f215b61d0708db6b06305eee9bbfeba2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4aa2dcfbad538adf7becd0034a3754e1bd01b2b5"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}