{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-97930",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-97930"
  ],
  "published": "2026-09-25T10:24:31Z",
  "summary": "ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usbusx2y: fix in04_last array size mismatch with in04_buf\n\nThe in04_last array in struct usx2ydev is declared as char[24], but\nin04_buf is allocated as sizeof(struct us428_ctls) which is 21 bytes.\nIn i_usx2y_in04_int(), when ctl_snapshot_last == -2 (initialization\npath):\n\n    memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last));\n\nThis copies 24 bytes from a 21-byte slab allocation, reading 3 bytes\npast the end of the source object.\n\nIntroduce a USX2Y_IN04_SIZE constant defined as sizeof(struct\nus428_ctls) and use it consistently for the in04_last array, the\nin04_buf allocation, the URB transfer length, and the comparison loop,\nreplacing the bare 24 and 21 literals throughout.",
  "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": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-97930"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/869fb83c072e884b80d93eab498e6040ffb010ba"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d170cfbe38c8817ac787f605655546a6d343017d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/229cab526580f82839ae8e4e379753c8cf16952e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/381495b5b3da12d714e53d9d12d955b13fe26eac"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b5753bdfd909f7f095fb464d67802b5e52cbadbf"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/861111a14740e12c36d363e9830f8daa734279c9"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-03T11:04:09Z"
  }
}