{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52806",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52806"
  ],
  "published": "2024-05-21T15:34:20Z",
  "summary": "ALSA: hda: Fix possible null-ptr-deref when assigning a stream",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda: Fix possible null-ptr-deref when assigning a stream\n\nWhile AudioDSP drivers assign streams exclusively of HOST or LINK type,\nnothing blocks a user to attempt to assign a COUPLED stream. As\nsupplied substream instance may be a stub, what is the case when\ncode-loading, such scenario ends with null-ptr-deref.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.64",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52806"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7de25112de8222fd20564769e6c99dc9f9738a0b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/758c7733cb821041f5fd403b7b97c0b95d319323"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2527775616f3638f4fd54649eba8c7b84d5e4250"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/25354bae4fc310c3928e8a42fda2d486f67745d7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/631a96e9eb4228ff75fce7e72d133ca81194797e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/43b91df291c8802268ab3cfd8fccfdf135800ed4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fe7c1a0c2b25c82807cb46fc3aadbf2664a682b0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4a320da7f7cbdab2098b103c47f45d5061f42edd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f93dc90c2e8ed664985e366aa6459ac83cdab236"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}