{
  "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-2026-64430",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64430",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-25T08:51:06.612Z",
    "updatedAt": "2026-08-17T04:55:30.939Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "NTB: epf: Avoid calling pci_irq_vector() from hardirq context",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nNTB: epf: Avoid calling pci_irq_vector() from hardirq context\n\nntb_epf_vec_isr() calls pci_irq_vector() in hardirq context to derive\nthe vector number. pci_irq_vector() calls msi_get_virq() that takes a\nmutex and can therefore trigger \"scheduling while atomic\" splats:\n\n  BUG: scheduling while atomic: kworker/u33:0/55/0x00010001\n  ...\n  Call trace:\n   ...\n   schedule+0x38/0x110\n   schedule_preempt_disabled+0x28/0x50\n   __mutex_lock.constprop.0+0x848/0x908\n   __mutex_lock_slowpath+0x18/0x30\n   mutex_lock+0x4c/0x60\n   msi_domain_get_virq+0xe8/0x138\n   pci_irq_vector+0x2c/0x60\n   ntb_epf_vec_isr+0x28/0x120 [ntb_hw_epf]\n   __handle_irq_event_percpu+0x70/0x3a8\n   handle_irq_event+0x48/0x100\n   handle_edge_irq+0x100/0x1c8\n   ...\n\nCache the Linux IRQ number for vector 0 when vectors are allocated and\nuse it as a base in the ISR. Running the ISR in a threaded IRQ handler\nwould also avoid the problem, but that would be unnecessary here.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "33bba331a4a5fee8b6026fe72eca13cceeec1b7b"
            },
            {
              "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aff271b12a1eb8c8b3da19223ae1a6abe1e8168b"
            },
            {
              "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1dba8444ac0100133d72374634f6d7451fff1ccc"
            },
            {
              "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "174a97f21bf9c54fa37ec0f321692e862ea130a3"
            },
            {
              "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f71e8d9875069fa73e335f63f02ec6e52e3aaa51"
            },
            {
              "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6350df503897d57c5634f71b0767d48c3b837583"
            },
            {
              "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4dcddc1c794d1c65eda68f1f8dd04a0fecc0870f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.12"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.96",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}