{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-56574",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-56574"
  ],
  "published": "2024-12-27T14:24:16Z",
  "summary": "media: ts2020: fix null-ptr-deref in ts2020_probe()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ts2020: fix null-ptr-deref in ts2020_probe()\n\nKASAN reported a null-ptr-deref issue when executing the following\ncommand:\n\n  # echo ts2020 0x20 > /sys/bus/i2c/devices/i2c-0/new_device\n    KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]\n    CPU: 53 UID: 0 PID: 970 Comm: systemd-udevd Not tainted 6.12.0-rc2+ #24\n    Hardware name: QEMU Standard PC (Q35 + ICH9, 2009)\n    RIP: 0010:ts2020_probe+0xad/0xe10 [ts2020]\n    RSP: 0018:ffffc9000abbf598 EFLAGS: 00010202\n    RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffffc0714809\n    RDX: 0000000000000002 RSI: ffff88811550be00 RDI: 0000000000000010\n    RBP: ffff888109868800 R08: 0000000000000001 R09: fffff52001577eb6\n    R10: 0000000000000000 R11: ffffc9000abbff50 R12: ffffffffc0714790\n    R13: 1ffff92001577eb8 R14: ffffffffc07190d0 R15: 0000000000000001\n    FS:  00007f95f13b98c0(0000) GS:ffff888149280000(0000) knlGS:0000000000000000\n    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n    CR2: 0000555d2634b000 CR3: 0000000152236000 CR4: 00000000000006f0\n    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n    DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n    Call Trace:\n     <TASK>\n     ts2020_probe+0xad/0xe10 [ts2020]\n     i2c_device_probe+0x421/0xb40\n     really_probe+0x266/0x850\n    ...\n\nThe cause of the problem is that when using sysfs to dynamically register\nan i2c device, there is no platform data, but the probe process of ts2020\nneeds to use platform data, resulting in a null pointer being accessed.\n\nSolve this problem by adding checks to platform data.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-56574"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ced1c04e82e3ecc246b921b9733f0df0866aa50d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5a53f97cd5977911850b695add057f9965c1a2d6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b6208d1567f929105011bcdfd738f59a6bdc1088"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dc03866b5f4aa2668946f8384a1e5286ae53bbaa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a2ed3b780f34e4a6403064208bc2c99d1ed85026"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/901070571bc191d1d8d7a1379bc5ba9446200999"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4a058b34b52ed3feb1f3ff6fd26aefeeeed20cba"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}