{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-53519",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-53519"
  ],
  "published": "2025-10-01T11:50:00Z",
  "summary": "media: v4l2-mem2mem: add lock to protect parameter num_rdy",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-mem2mem: add lock to protect parameter num_rdy\n\nGetting below error when using KCSAN to check the driver. Adding lock to\nprotect parameter num_rdy when getting the value with function:\nv4l2_m2m_num_src_bufs_ready/v4l2_m2m_num_dst_bufs_ready.\n\nkworker/u16:3: [name:report&]BUG: KCSAN: data-race in v4l2_m2m_buf_queue\nkworker/u16:3: [name:report&]\n\nkworker/u16:3: [name:report&]read-write to 0xffffff8105f35b94 of 1 bytes by task 20865 on cpu 7:\nkworker/u16:3:\u00a0 v4l2_m2m_buf_queue+0xd8/0x10c",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.21-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v6",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v8",
            "binary_version": "1:6.1.21-1+rpt1"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.21-1+rpt1": {
            "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed",
            "upstream_version": "6.1.21",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.47"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53519"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7fc7f87725805197388ba749a1801df33000fa50"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ef009fe2010ea2a3a7045ecb72729cf366e0967b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e52de26cb37459b16213438a2c82feb155dd3bbd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1676748aa29099fc0abd71e0fb092e76e835f25c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c71aa5f1cf961264690f2560503ea396b6e3c680"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e01ea1c4191ee08440b5f86db98dff695e9cedf9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/56b5c3e67b0f9af3f45cf393be048ee8d8a92694"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}