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CVE-2026-31590 KVM: SEV: Drop WARN on large size for KVM_MEMORY_ENCRYPT_REG_REGION

🗓️ 24 Apr 2026 14:42:17Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 26 Views

CVE-2026-31590: KVM SEV drops WARN in sev_pin_memory for large region sizes during memory region registration.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/svm/sev.c"
    ],
    "versions": [
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "6a8e3c82122737529b25ef2a048fbcc569d8c055",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "a703933bcfa5cc76ca10e2048464600e74136099",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "abcd43ff579abd0a654bb4636086e78819dd5f4c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "b670833749ffd8681361db2bb047c6f2e3075f3a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "ab423e5892826202a660b5ac85d1125b0e8301a5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "28cc13ca20431b127d42d84ba10898d03e2c8267",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "c29ff288a2d97a6f4640a498a367cf0eb91312eb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "1cba4dcd795daf6d257122779fb6a349edf03914",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "78824fabc72e5e37d51e6e567fde70a4fc41a6d7",
        "lessThan": "8acffeef5ef720c35e513e322ab08e32683f32f2",
        "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/svm/sev.c"
    ],
    "versions": [
      {
        "version": "5.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.136",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.83",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.24",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.14",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.1",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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14 Jun 2026 17:42Current
EPSS0.00125
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