{
  "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-2026-23089",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23089",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-02-04T16:08:12.575Z",
    "updatedAt": "2026-10-19T18:25:30.214Z",
    "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: Fix use-after-free in snd_usb_mixer_free()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free()\n\nWhen snd_usb_create_mixer() fails, snd_usb_mixer_free() frees\nmixer->id_elems but the controls already added to the card still\nreference the freed memory. Later when snd_card_register() runs,\nthe OSS mixer layer calls their callbacks and hits a use-after-free read.\n\nCall trace:\n  get_ctl_value+0x63f/0x820 sound/usb/mixer.c:411\n  get_min_max_with_quirks.isra.0+0x240/0x1f40 sound/usb/mixer.c:1241\n  mixer_ctl_feature_info+0x26b/0x490 sound/usb/mixer.c:1381\n  snd_mixer_oss_build_test+0x174/0x3a0 sound/core/oss/mixer_oss.c:887\n  ...\n  snd_card_register+0x4ed/0x6d0 sound/core/init.c:923\n  usb_audio_probe+0x5ef/0x2a90 sound/usb/card.c:1025\n\nFix by calling snd_ctl_remove() for all mixer controls before freeing\nid_elems. We save the next pointer first because snd_ctl_remove()\nfrees the current element.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6639b6c2367f884ca172b78d69f7da17bfab2e5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "51b1aa6fe7dc87356ba58df06afb9677c9b841ea"
            },
            {
              "version": "6639b6c2367f884ca172b78d69f7da17bfab2e5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "56fb6efd5d04caf6f14994d51ec85393b9a896c6"
            },
            {
              "version": "6639b6c2367f884ca172b78d69f7da17bfab2e5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7009daeefa945973a530b2f605fe445fc03747af"
            },
            {
              "version": "6639b6c2367f884ca172b78d69f7da17bfab2e5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7bff0156d13f0ad9436e5178b979b063d59f572a"
            },
            {
              "version": "6639b6c2367f884ca172b78d69f7da17bfab2e5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e6f103a22b08daf5df2f4aa158081840e5910963"
            },
            {
              "version": "6639b6c2367f884ca172b78d69f7da17bfab2e5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dc1a5dd80af1ee1f29d8375b12dd7625f6294dad"
            },
            {
              "version": "6639b6c2367f884ca172b78d69f7da17bfab2e5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "930e69757b74c3ae083b0c3c7419bfe7f0edc7b2"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.13"
            },
            {
              "version": "5.10.249",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.199",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.162",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.122",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.68",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}