{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-54072",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-54072"
  ],
  "published": "2025-12-24T12:27:01Z",
  "summary": "ALSA: pcm: Fix potential data race at PCM memory allocation helpers",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: Fix potential data race at PCM memory allocation helpers\n\nThe PCM memory allocation helpers have a sanity check against too many\nbuffer allocations.  However, the check is performed without a proper\nlock and the allocation isn't serialized; this allows user to allocate\nmore memories than predefined max size.\n\nPractically seen, this isn't really a big problem, as it's more or\nless some \"soft limit\" as a sanity check, and it's not possible to\nallocate unlimitedly.  But it's still better to address this for more\nconsistent behavior.\n\nThe patch covers the size check in do_alloc_pages() with the\ncard->memory_mutex, and increases the allocated size there for\npreventing the further overflow.  When the actual allocation fails,\nthe size is decreased accordingly.",
  "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": "6.1.39"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-54072"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7e1d1456c8db9949459c5a24e8845cfe92430b0f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7e11c58b2620a22c67a5ae28d64ce383890ee9f4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a0ab49e7a758b488b2090171a75d50735c0876f6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3eb4e47a94e3f76521d7d344696db61e6a9619c7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/773ccad902f67583a58b5650a2f8d8daf2e76fac"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bd55842ed998a622ba6611fe59b3358c9f76773d"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}