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CVE-2026-72412 s390/mm: Fix handling of _PAGE_UNUSED pte bit

🗓️ 15 Aug 2026 05:56:34Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Linux kernel s390 set_pte fails to clear _PAGE_UNUSED bit on present ptes causing KVM guest corruption.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-72412
15 Aug 202600:00
cve
debiancve
Debian CVE
CVE-2026-72412
15 Aug 202600:00
debiancve
euvd
EUVD
EUVD-2026-59311
15 Aug 202605:56
euvd
nvd
NVD
CVE-2026-72412
15 Aug 202606:22
nvd
ptsecurity
Positive Technologies
PT-2026-72600
15 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/s390/include/asm/pgtable.h",
      "arch/s390/mm/gmap_helpers.c"
    ],
    "versions": [
      {
        "version": "c98175b7917fa81cd499b1527c4a57fd7d36711e",
        "lessThan": "fda07c8e4b54b9105f1ca73f0adea7b244d405f4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c98175b7917fa81cd499b1527c4a57fd7d36711e",
        "lessThan": "d4bb00704a66024502261fa7a523c07420249fea",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/s390/include/asm/pgtable.h",
      "arch/s390/mm/gmap_helpers.c"
    ],
    "versions": [
      {
        "version": "7.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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