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CVE-2026-23402 KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE

🗓️ 01 Apr 2026 08:36:33Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

KVM x86/MMU: warn only for direct MMUs overwriting shadow-present SPTEs; host writes can bypass shadow paging.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-23402
1 Apr 202608:36
attackerkb
Tenable Nessus
Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1746)
27 May 202600:00
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-23402
2 Apr 202600:00
nessus
Amazon
Important: kernel6.18
26 May 202600:00
amazon
AstraLinux
Astra Linux - уязвимость в linux-5.10
20 May 202605:53
astralinux
CNNVD
Linux kernel 安全漏洞
1 Apr 202600:00
cnnvd
CVE
CVE-2026-23402
1 Apr 202608:36
cve
Debian CVE
CVE-2026-23402
1 Apr 202608:36
debiancve
EUVD
EUVD-2026-17830
1 Apr 202609:31
euvd
NVD
CVE-2026-23402
1 Apr 202609:16
nvd
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/mmu/mmu.c"
    ],
    "versions": [
      {
        "version": "11d45175111d933c5175acc28e56af2213dd5cd6",
        "lessThan": "bab090e8fd5607f77379ea78b9d0c683cb1538a9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11d45175111d933c5175acc28e56af2213dd5cd6",
        "lessThan": "a1e0f7150639bc30a8e75476d1c7daab77d44992",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "11d45175111d933c5175acc28e56af2213dd5cd6",
        "lessThan": "df83746075778958954aa0460cca55f4b3fc9c02",
        "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/x86/kvm/mmu/mmu.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.21",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.11",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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