{
  "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-2026-31467",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31467",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-22T13:53:56.910Z",
    "updatedAt": "2026-08-05T12:22:46.421Z",
    "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": "erofs: add GFP_NOIO in the bio completion if needed",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: add GFP_NOIO in the bio completion if needed\n\nThe bio completion path in the process context (e.g. dm-verity)\nwill directly call into decompression rather than trigger another\nworkqueue context for minimal scheduling latencies, which can\nthen call vm_map_ram() with GFP_KERNEL.\n\nDue to insufficient memory, vm_map_ram() may generate memory\nswapping I/O, which can cause submit_bio_wait to deadlock\nin some scenarios.\n\nTrimmed down the call stack, as follows:\n\nf2fs_submit_read_io\n  submit_bio                      //bio_list is initialized.\n    mmc_blk_mq_recovery\n      z_erofs_endio\n        vm_map_ram\n          __pte_alloc_kernel\n            __alloc_pages_direct_reclaim\n              shrink_folio_list\n                __swap_writepage\n                  submit_bio_wait  //bio_list is non-NULL, hang!!!\n\nUse memalloc_noio_{save,restore}() to wrap up this path.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "648f2de053a882c87c05f0060f47d3b11841fdbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d6565ea662e17d45a577184b0011bd69de22dc2b"
            },
            {
              "version": "648f2de053a882c87c05f0060f47d3b11841fdbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d9d8360cb66e3b599d89d2526e7da8b530ebf2ff"
            },
            {
              "version": "648f2de053a882c87c05f0060f47d3b11841fdbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5c8ecdcfbfb0b0c6a82a4ebadc1ddea61609b902"
            },
            {
              "version": "648f2de053a882c87c05f0060f47d3b11841fdbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "378949f46e897204384f3f5f91e42e93e3f87568"
            },
            {
              "version": "648f2de053a882c87c05f0060f47d3b11841fdbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "da40464064599eefe78749f75cd2bba371044c04"
            },
            {
              "version": "648f2de053a882c87c05f0060f47d3b11841fdbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e83e20b82859f0588e9a52a6fa9fea704a2061cf"
            },
            {
              "version": "648f2de053a882c87c05f0060f47d3b11841fdbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c23df30915f83e7257c8625b690a1cece94142a0"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.13"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.131",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.80",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.21",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}