{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-53827",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-53827"
  ],
  "published": "2025-12-09T01:31:24Z",
  "summary": "Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}\n\nSimilar to commit d0be8347c623 (\"Bluetooth: L2CAP: Fix use-after-free\ncaused by l2cap_chan_put\"), just use l2cap_chan_hold_unless_zero to\nprevent referencing a channel that is about to be destroyed.",
  "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": "6.1.25"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53827"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f2d38e77aa5f3effc143e7dd24da8acf02925958"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1351551aa9058e07a20a27a158270cf84fcde621"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c02421992505c95c7f3c9ad59ee35e22eac60988"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d9ba36c22a7bb09d6bac4cc2f243eff05da53f43"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ac6725a634f7e8c0330610a8527f20c730b61115"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/348d446762e7c70778df8bafbdf3fa0df2123f58"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a2a9339e1c9deb7e1e079e12e27a0265aea8421a"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:24:39Z"
  }
}