{
  "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-2026-74337",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74337",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:58:28.518Z",
    "updatedAt": "2026-08-17T05:17:29.070Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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 NMI/tracepoint re-entry deadlock on lru locks",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NMI/tracepoint re-entry deadlock on lru locks\n\nNMI and tracepoint BPF programs can re-enter the per-CPU or global\nLRU lock that bpf_lru_pop_free()/push_free() already hold on the\nsame CPU, AA-deadlocking. Lockdep reports \"inconsistent\n{INITIAL USE} -> {IN-NMI}\" on &l->lock (syzbot c69a0a2c816716f1e0d5)\nand \"possible recursive locking detected\" on &loc_l->lock (syzbot\n18b26edb69b2e19f3b33).\n\nPrior trylock and rqspinlock based fixes (see links) were nacked\nbecause compromised on reliability.\n\nThis patch converts every LRU lock site to rqspinlock_t and adds a\nrecovery path for some failure windows to avoid node leaks.\n\nFailure recovery:\n\n - *_pop_free top-level: return NULL; prealloc_lru_pop() already\n   treats that as no-free-element (-ENOMEM).\n\n - Cross-CPU steal: skip the victim's locked loc_l, try next CPU.\n\n - Post-steal local lock fail: publish stolen node to lockless\n   per-CPU free_llist; next pop on this CPU picks it up.\n\n - push_free fail: mark node pending_free=1. __local_list_flush(),\n   __local_list_pop_pending() reclaim the node from pending_list.\n   __bpf_lru_list_shrink_inactive() reclaims the node from inactive\n   list. Nodes from active list are reclaimed by __bpf_lru_list_shrink()\n   or after __bpf_lru_list_rotate_active() demotes it to the inactive.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8b0510cc3a4a000d4ed1a56cd96231f3d3ba94c5"
            },
            {
              "version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "440a2fdbb40608d55a7b11f2be53592a3785131d"
            },
            {
              "version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "89edbdfc5d0308cef57b71359331de5c4ddbf763"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}