{
  "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-2025-68742",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-68742",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-24T12:09:39.341Z",
    "updatedAt": "2026-10-15T01:10:02.989Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "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": "bpf: Fix invalid prog->stats access when update_effective_progs fails",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix invalid prog->stats access when update_effective_progs fails\n\nSyzkaller triggers an invalid memory access issue following fault\ninjection in update_effective_progs. The issue can be described as\nfollows:\n\n__cgroup_bpf_detach\n  update_effective_progs\n    compute_effective_progs\n      bpf_prog_array_alloc <-- fault inject\n  purge_effective_progs\n    /* change to dummy_bpf_prog */\n    array->items[index] = &dummy_bpf_prog.prog\n\n---softirq start---\n__do_softirq\n  ...\n    __cgroup_bpf_run_filter_skb\n      __bpf_prog_run_save_cb\n        bpf_prog_run\n          stats = this_cpu_ptr(prog->stats)\n          /* invalid memory access */\n          flags = u64_stats_update_begin_irqsave(&stats->syncp)\n---softirq end---\n\n  static_branch_dec(&cgroup_bpf_enabled_key[atype])\n\nThe reason is that fault injection caused update_effective_progs to fail\nand then changed the original prog into dummy_bpf_prog.prog in\npurge_effective_progs. Then a softirq came, and accessing the members of\ndummy_bpf_prog.prog in the softirq triggers invalid mem access.\n\nTo fix it, skip updating stats when stats is NULL.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
              "status": "affected",
              "versionType": "git",
              "lessThan": "93d1964773ff513c9bd530f7686d3e48b786fa6b"
            },
            {
              "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bf2c990b012100610c0f1ec5c4ea434da2d080c2"
            },
            {
              "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
              "status": "affected",
              "versionType": "git",
              "lessThan": "539137e3038ce6f953efd72110110f03c14c7d97"
            },
            {
              "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
              "status": "affected",
              "versionType": "git",
              "lessThan": "56905bb70c8b88421709bb4e32fcba617aa37d41"
            },
            {
              "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2579c356ccd35d06238b176e4b460978186d804b"
            },
            {
              "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7dc211c1159d991db609bdf4b0fb9033c04adcbc"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.1",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.1"
            },
            {
              "version": "6.1.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.120",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.63",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}