{
  "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-2024-26840",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26840",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-04-17T10:10:06.180Z",
    "updatedAt": "2026-05-11T20:05:09.433Z",
    "importedAt": "2026-10-24T01:57:07.518Z",
    "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": "cachefiles: fix memory leak in cachefiles_add_cache()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix memory leak in cachefiles_add_cache()\n\nThe following memory leak was reported after unbinding /dev/cachefiles:\n\n==================================================================\nunreferenced object 0xffff9b674176e3c0 (size 192):\n  comm \"cachefilesd2\", pid 680, jiffies 4294881224\n  hex dump (first 32 bytes):\n    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace (crc ea38a44b):\n    [<ffffffff8eb8a1a5>] kmem_cache_alloc+0x2d5/0x370\n    [<ffffffff8e917f86>] prepare_creds+0x26/0x2e0\n    [<ffffffffc002eeef>] cachefiles_determine_cache_security+0x1f/0x120\n    [<ffffffffc00243ec>] cachefiles_add_cache+0x13c/0x3a0\n    [<ffffffffc0025216>] cachefiles_daemon_write+0x146/0x1c0\n    [<ffffffff8ebc4a3b>] vfs_write+0xcb/0x520\n    [<ffffffff8ebc5069>] ksys_write+0x69/0xf0\n    [<ffffffff8f6d4662>] do_syscall_64+0x72/0x140\n    [<ffffffff8f8000aa>] entry_SYSCALL_64_after_hwframe+0x6e/0x76\n==================================================================\n\nPut the reference count of cache_cred in cachefiles_daemon_unbind() to\nfix the problem. And also put cache_cred in cachefiles_add_cache() error\nbranch to avoid memory leaks.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cb5466783793e66272624cf71925ae1d1ba32083"
            },
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "037d5a949b0455540ef9aab34c10ddf54b65d285"
            },
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "43eccc5823732ba6daab2511ed32dfc545a666d8"
            },
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "94965be37add0983672e48ecb33cdbda92b62579"
            },
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8b218e2f0a27a9f09428b1847b4580640b9d1e58"
            },
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "38e921616320d159336b0ffadb09e9fb4945c7c3"
            },
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9cac69912052a4def571fedf1cb9bb4ec590e25a"
            },
            {
              "version": "9ae326a69004dea8af2dae4fde58de27db700a8d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e21a2f17566cbd64926fb8f16323972f7a064444"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.30",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.30"
            },
            {
              "version": "4.19.309",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.80",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.19",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.7.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.7.*"
            },
            {
              "version": "6.8",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}