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CVE-2026-64430 NTB: epf: Avoid calling pci_irq_vector() from hardirq context

🗓️ 25 Jul 2026 08:51:06Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 32 Views

NTB epf avoids pci_irq_vector() in hardirq by caching base IRQ for vector 0 and using it in the ISR.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/ntb/hw/epf/ntb_hw_epf.c"
    ],
    "versions": [
      {
        "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
        "lessThan": "33bba331a4a5fee8b6026fe72eca13cceeec1b7b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
        "lessThan": "aff271b12a1eb8c8b3da19223ae1a6abe1e8168b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
        "lessThan": "1dba8444ac0100133d72374634f6d7451fff1ccc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
        "lessThan": "174a97f21bf9c54fa37ec0f321692e862ea130a3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
        "lessThan": "f71e8d9875069fa73e335f63f02ec6e52e3aaa51",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
        "lessThan": "6350df503897d57c5634f71b0767d48c3b837583",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "812ce2f8d14ea791edd88c36ebcc9017bf4c88cb",
        "lessThan": "4dcddc1c794d1c65eda68f1f8dd04a0fecc0870f",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/ntb/hw/epf/ntb_hw_epf.c"
    ],
    "versions": [
      {
        "version": "5.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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