{
  "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-2024-47699",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-47699",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-10-21T11:53:35.962Z",
    "updatedAt": "2026-10-15T00:51:46.202Z",
    "importedAt": "2026-10-24T01:57:16.009Z",
    "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": "nilfs2: fix potential null-ptr-deref in nilfs_btree_insert()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix potential null-ptr-deref in nilfs_btree_insert()\n\nPatch series \"nilfs2: fix potential issues with empty b-tree nodes\".\n\nThis series addresses three potential issues with empty b-tree nodes that\ncan occur with corrupted filesystem images, including one recently\ndiscovered by syzbot.\n\n\nThis patch (of 3):\n\nIf a b-tree is broken on the device, and the b-tree height is greater than\n2 (the level of the root node is greater than 1) even if the number of\nchild nodes of the b-tree root is 0, a NULL pointer dereference occurs in\nnilfs_btree_prepare_insert(), which is called from nilfs_btree_insert().\n\nThis is because, when the number of child nodes of the b-tree root is 0,\nnilfs_btree_do_lookup() does not set the block buffer head in any of\npath[x].bp_bh, leaving it as the initial value of NULL, but if the level\nof the b-tree root node is greater than 1, nilfs_btree_get_nonroot_node(),\nwhich accesses the buffer memory of path[x].bp_bh, is called.\n\nFix this issue by adding a check to nilfs_btree_root_broken(), which\nperforms sanity checks when reading the root node from the device, to\ndetect this inconsistency.\n\nThanks to Lizhi Xu for trying to solve the bug and clarifying the cause\nearly on.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2b78e9df10fb7f4e9d3d7a18417dd72fbbc1dfd0"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1d94dbdfbb64cc48d10dec65cc3c4fbf2497b343"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "24bf40740a3da6b4056721da34997ae6938f3da1"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "73d23ecf234b7a6d47fb883f2dabe10e3230b31d"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f68523e0f26faade18833fbef577a4295d8e2c94"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "21839b6fbc3c41b3e374ecbdb0cabbbb2c53cf34"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "db73500d3f0e558eb642aae1d4782e7726b4a03f"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3644554d308ddf2669e459a1551a7edf60b2d62b"
            },
            {
              "version": "17c76b0104e4a6513983777e1a17e0297a12b0c4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9403001ad65ae4f4c5de368bdda3a0636b51d51a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.30",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.30"
            },
            {
              "version": "4.19.323",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.285",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.227",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.10.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.10.*"
            },
            {
              "version": "6.11.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}