{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-23208",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23208",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-02-14T16:27:30.441Z",
    "updatedAt": "2026-10-21T12:38:57.202Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "ALSA: usb-audio: Prevent excessive number of frames",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Prevent excessive number of frames\n\nIn this case, the user constructed the parameters with maxpacksize 40\nfor rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer\nsize for each data URB is maxpacksize * packets, which in this example\nis 40 * 6 = 240; When the user performs a write operation to send audio\ndata into the ALSA PCM playback stream, the calculated number of frames\nis packsize[0] * packets = 264, which exceeds the allocated URB buffer\nsize, triggering the out-of-bounds (OOB) issue reported by syzbot [1].\n\nAdded a check for the number of single data URB frames when calculating\nthe number of frames to prevent [1].\n\n[1]\nBUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\nWrite of size 264 at addr ffff88804337e800 by task syz.0.17/5506\nCall Trace:\n copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\n prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611\n prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "02c56650f3c118d3752122996d96173d26bb13aa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "480a1490c595a242f27493a4544b3efb21b29f6a"
            },
            {
              "version": "5ef30e443e6d3654cccecec99cf481a69a0a6d3b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41"
            },
            {
              "version": "99703c921864a318e3e8aae74fde071b1ff35bea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "282aba56713bbc58155716b55ca7222b2d9cf3c8"
            },
            {
              "version": "2d50acd7dbd0682a56968ad9551341d7fc5b6eaf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c4dc012b027c9eb101583011089dea14d744e314"
            },
            {
              "version": "aba41867dd66939d336fdf604e4d73b805d8039f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360"
            },
            {
              "version": "d288dc74f8cf95cb7ae0aaf245b7128627a49bf3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d67dde02049e632ba58d3c44a164a74b6a737154"
            },
            {
              "version": "f0bd62b64016508938df9babe47f65c2c727d25c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "152fc4f7b4a8af1c0418d2722f3b2729799cc837"
            },
            {
              "version": "f0bd62b64016508938df9babe47f65c2c727d25c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "81e4b0009f2acc841d77a24fd796528b0bf62c4e"
            },
            {
              "version": "f0bd62b64016508938df9babe47f65c2c727d25c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "62932d9ed639a9fa71b4ac1a56766a4b43abb7e4"
            },
            {
              "version": "f0bd62b64016508938df9babe47f65c2c727d25c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ef5749ef8b307bf8717945701b1b79d036af0a15"
            },
            {
              "version": "4.4.229",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.4.230"
            },
            {
              "version": "4.9.229",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.9.230"
            },
            {
              "version": "4.14.186",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.14.188"
            },
            {
              "version": "4.19.130",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.132"
            },
            {
              "version": "5.4.49",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.51"
            },
            {
              "version": "5.7.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.7.8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.8"
            },
            {
              "version": "4.4.230",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.4.*"
            },
            {
              "version": "4.9.230",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.132",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.51",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.7.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.7.*"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.114",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}