{
  "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-2026-31581",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31581",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-24T14:42:11.557Z",
    "updatedAt": "2026-06-14T17:42:07.970Z",
    "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: 6fire: fix use-after-free on disconnect",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: 6fire: fix use-after-free on disconnect\n\nIn usb6fire_chip_abort(), the chip struct is allocated as the card's\nprivate data (via snd_card_new with sizeof(struct sfire_chip)).  When\nsnd_card_free_when_closed() is called and no file handles are open, the\ncard and embedded chip are freed synchronously.  The subsequent\nchip->card = NULL write then hits freed slab memory.\n\nCall trace:\n  usb6fire_chip_abort sound/usb/6fire/chip.c:59 [inline]\n  usb6fire_chip_disconnect+0x348/0x358 sound/usb/6fire/chip.c:182\n  usb_unbind_interface+0x1a8/0x88c drivers/usb/core/driver.c:458\n  ...\n  hub_event+0x1a04/0x4518 drivers/usb/core/hub.c:5953\n\nFix by moving the card lifecycle out of usb6fire_chip_abort() and into\nusb6fire_chip_disconnect().  The card pointer is saved in a local\nbefore any teardown, snd_card_disconnect() is called first to prevent\nnew opens, URBs are aborted while chip is still valid, and\nsnd_card_free_when_closed() is called last so chip is never accessed\nafter the card may be freed.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f2d06d4e129e2508e356136f99bb20a332ff1a00",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e719232f4552e29de8027a83918ea94434be87af"
            },
            {
              "version": "b889a7d68d7e76b8795b754a75c91a2d561d5e8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e247a0e01d15ed420f77ec5e2335721bf430a5b3"
            },
            {
              "version": "ea8cc56db659cf0ae57073e32a4735ead7bd7ee3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba88461f7653636c48321ca993006a74724c2f41"
            },
            {
              "version": "b754e831a94f82f2593af806741392903f359168",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e88354b381e2006de63d6b052ed7005c9a47d00e"
            },
            {
              "version": "57860a80f03f9dc69a34a5c37b0941ad032a0a8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "af75b486f7e883e3422ece23c8d727e6815144a0"
            },
            {
              "version": "a0810c3d6dd2d29a9b92604d682eacd2902ce947",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d21e8a2af4869b5890b34e081d5aeadc93e9cd5c"
            },
            {
              "version": "a0810c3d6dd2d29a9b92604d682eacd2902ce947",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3dc20d1981d6a67d8184498a5da272942dde1e65"
            },
            {
              "version": "a0810c3d6dd2d29a9b92604d682eacd2902ce947",
              "status": "affected",
              "versionType": "git",
              "lessThan": "51f6532790b74ffdd6970bc848358a2838c1c185"
            },
            {
              "version": "a0810c3d6dd2d29a9b92604d682eacd2902ce947",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b9c826916fdce6419b94eb0cd8810fdac18c2386"
            },
            {
              "version": "74357d0b5cd3ef544752bc9f21cbeee4902fae6c",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "273eec23467dfbfbd0e4c10302579ba441fb1e13",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "0df7f4b5cc10f5adf98be0845372e9eef7bb5b09",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.231",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.258"
            },
            {
              "version": "5.15.174",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.209"
            },
            {
              "version": "6.1.120",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.175"
            },
            {
              "version": "6.6.64",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.136"
            },
            {
              "version": "6.12.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.83"
            },
            {
              "version": "4.19.325",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.4.287",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "6.11.11",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.13"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.136",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.83",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.24",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}