{
  "cveId": "CVE-2026-46071",
  "url": "https://patchblox.com/security/cve/CVE-2026-46071",
  "summary": "CVE-2026-46071 is fixed in 35 products on 1 platform, first by ALAS2023-2026-1754, released May 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12  svm_copy_lbrs() always marks VMCB_LBR dirty in the destination VMCB. However, nested_svm_vmexit() uses it to copy LBRs to vmcb12, and clearing clean bits in vmcb12 is not architecturally defined.  Move vmcb_mark_dirty() to callers and drop it for vmcb12.  This also facilitates incoming refactoring that does not pass the entire VMCB to svm_copy_lbrs().",
  "published": "2026-05-25T09:00:00Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00123,
  "epssPercentile": 0.0208,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46071",
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dtb-aarch64",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.125.1",
      "fix": "SUSE-SU-2026:3156-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3156-1",
      "released": "2026-07-21T13:34:53Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1.160000.2.17",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.125.1.150600.12.58.3",
      "fix": "SUSE-SU-2026:3156-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3156-1",
      "released": "2026-07-21T13:34:53Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1.150700.17.39.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1.160000.2.17",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.125.1",
      "fix": "SUSE-SU-2026:3156-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3156-1",
      "released": "2026-07-21T13:34:53Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.2",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-kvmsmall",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-kvmsmall",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.30-61.116",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP6_Update_29",
      "release": "sles 15.6",
      "fixedVersion": "1-150600.13.7.1",
      "fix": "SUSE-SU-2026:3156-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3156-1",
      "released": "2026-07-21T13:34:53Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7-RT_Update_17",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.1.3.1",
      "fix": "SUSE-SU-2026:2799-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2799-1",
      "released": "2026-07-08T14:58:16Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7_Update_18",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.15.3.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.125.1",
      "fix": "SUSE-SU-2026:3156-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3156-1",
      "released": "2026-07-21T13:34:53Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-qa",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-qa",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-rt",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.125.1",
      "fix": "SUSE-SU-2026:3156-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3156-1",
      "released": "2026-07-21T13:34:53Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.125.1",
      "fix": "SUSE-SU-2026:3156-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3156-1",
      "released": "2026-07-21T13:34:53Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.66.1",
      "fix": "SUSE-SU-2026:2800-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2800-1",
      "released": "2026-07-08T14:59:38Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "SUSE-SU-2026:22835-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22835-1",
      "released": "2026-07-21T08:27:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-46071",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-46071",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.4-1",
      "fix": "DEBIAN-CVE-2026-46071",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-46071",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.30-61.116.amzn2023",
      "fix": "ALAS2023-2026-1754",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1754",
      "released": "2026-05-25T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}