Vulnerability-Lookup

FKIE_CVE-2026-64604

Vulnerability from fkie_nvd - Published: 2026-08-06 08:16 - Updated: 2026-08-06 22:18

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU creation, without running afoul of get_vmcs12()'s lockdep assertion. ------------[ cut here ]------------ debug_locks && !(lock_is_held(&(&vcpu->mutex)->dep_map) || !refcount_read(&vcpu->kvm->users_count)) WARNING: arch/x86/kvm/vmx/nested.h:61 at get_vmcs12 arch/x86/kvm/vmx/nested.h:60 [inline], CPU#0: syz.2.19/5879 WARNING: arch/x86/kvm/vmx/nested.h:61 at vmx_update_cr8_intercept+0x3de/0x4e0 arch/x86/kvm/vmx/vmx.c:6879, CPU#0: syz.2.19/5879 Modules linked in: CPU: 0 UID: 0 PID: 5879 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:get_vmcs12 arch/x86/kvm/vmx/nested.h:60 [inline] RIP: 0010:vmx_update_cr8_intercept+0x3de/0x4e0 arch/x86/kvm/vmx/vmx.c:6879 Call Trace: <TASK> apic_update_ppr arch/x86/kvm/lapic.c:984 [inline] kvm_lapic_reset+0x1c24/0x2980 arch/x86/kvm/lapic.c:3023 kvm_vcpu_reset+0x44c/0x1bf0 arch/x86/kvm/x86.c:12986 kvm_arch_vcpu_create+0x746/0x8b0 arch/x86/kvm/x86.c:12847 kvm_vm_ioctl_create_vcpu+0x428/0x930 virt/kvm/kvm_main.c:4201 kvm_vm_ioctl+0x893/0xd50 virt/kvm/kvm_main.c:5159 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f </TASK> No functional change intended.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/258ec63c0f281bf7b50f9de67c8e93b5b7be5ed4
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3dcfb04dd43b16fa1240fc6487fff578ad57264c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/570af5db081b87374594a00711ac5760d2ea6844
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7ef78d71ca713d8c00f7c34ddcf276c808143f77
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9a21f1defd96c6301c5fb462a78eb51b191bd2dd
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c7cd3605244c924249dea32632e1bc3e89bda543
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/db8407b9fd06d857a4a5e8bcff1d086d13007711
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ffaaff82336db84e9b58e7a3e81c2fd64e05ed7a

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kvm/vmx/vmx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c7cd3605244c924249dea32632e1bc3e89bda543",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "9a21f1defd96c6301c5fb462a78eb51b191bd2dd",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "570af5db081b87374594a00711ac5760d2ea6844",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "ffaaff82336db84e9b58e7a3e81c2fd64e05ed7a",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "258ec63c0f281bf7b50f9de67c8e93b5b7be5ed4",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "3dcfb04dd43b16fa1240fc6487fff578ad57264c",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "db8407b9fd06d857a4a5e8bcff1d086d13007711",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "7ef78d71ca713d8c00f7c34ddcf276c808143f77",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kvm/vmx/vmx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.18"
            },
            {
              "lessThan": "3.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode\n\nWhen updating CR8 intercepts, get vmcs12 if and only if the vCPU is in\nguest mode so that a future change can have update CR8 intercepts during\nvCPU creation, without running afoul of get_vmcs12()\u0027s lockdep assertion.\n\n  ------------[ cut here ]------------\n  debug_locks \u0026\u0026 !(lock_is_held(\u0026(\u0026vcpu-\u003emutex)-\u003edep_map) || !refcount_read(\u0026vcpu-\u003ekvm-\u003eusers_count))\n  WARNING: arch/x86/kvm/vmx/nested.h:61 at get_vmcs12 arch/x86/kvm/vmx/nested.h:60 [inline], CPU#0: syz.2.19/5879\n  WARNING: arch/x86/kvm/vmx/nested.h:61 at vmx_update_cr8_intercept+0x3de/0x4e0 arch/x86/kvm/vmx/vmx.c:6879, CPU#0: syz.2.19/5879\n  Modules linked in:\n  CPU: 0 UID: 0 PID: 5879 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full)\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014\n  RIP: 0010:get_vmcs12 arch/x86/kvm/vmx/nested.h:60 [inline]\n  RIP: 0010:vmx_update_cr8_intercept+0x3de/0x4e0 arch/x86/kvm/vmx/vmx.c:6879\n  Call Trace:\n   \u003cTASK\u003e\n   apic_update_ppr arch/x86/kvm/lapic.c:984 [inline]\n   kvm_lapic_reset+0x1c24/0x2980 arch/x86/kvm/lapic.c:3023\n   kvm_vcpu_reset+0x44c/0x1bf0 arch/x86/kvm/x86.c:12986\n   kvm_arch_vcpu_create+0x746/0x8b0 arch/x86/kvm/x86.c:12847\n   kvm_vm_ioctl_create_vcpu+0x428/0x930 virt/kvm/kvm_main.c:4201\n   kvm_vm_ioctl+0x893/0xd50 virt/kvm/kvm_main.c:5159\n   vfs_ioctl fs/ioctl.c:51 [inline]\n   __do_sys_ioctl fs/ioctl.c:597 [inline]\n   __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583\n   do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n   do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\n   \u003c/TASK\u003e\n\nNo functional change intended."
    }
  ],
  "id": "CVE-2026-64604",
  "lastModified": "2026-08-06T22:18:12.753",
  "metrics": {},
  "published": "2026-08-06T08:16:36.220",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/258ec63c0f281bf7b50f9de67c8e93b5b7be5ed4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3dcfb04dd43b16fa1240fc6487fff578ad57264c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/570af5db081b87374594a00711ac5760d2ea6844"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7ef78d71ca713d8c00f7c34ddcf276c808143f77"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9a21f1defd96c6301c5fb462a78eb51b191bd2dd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c7cd3605244c924249dea32632e1bc3e89bda543"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/db8407b9fd06d857a4a5e8bcff1d086d13007711"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ffaaff82336db84e9b58e7a3e81c2fd64e05ed7a"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-64604 (GCVE-0-2026-64604)

Vulnerability from cvelistv5 – Published: 2026-08-06 07:13 – Updated: 2026-08-06 17:37

Title

KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode

Summary

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c7cd3605244c92424…
https://git.kernel.org/stable/c/9a21f1defd96c6301…
https://git.kernel.org/stable/c/570af5db081b87374…
https://git.kernel.org/stable/c/ffaaff82336db84e9…
https://git.kernel.org/stable/c/258ec63c0f281bf7b…
https://git.kernel.org/stable/c/3dcfb04dd43b16fa1…
https://git.kernel.org/stable/c/db8407b9fd06d857a…
https://git.kernel.org/stable/c/7ef78d71ca713d8c0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < c7cd3605244c924249dea32632e1bc3e89bda543 (git) Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < 9a21f1defd96c6301c5fb462a78eb51b191bd2dd (git) Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < 570af5db081b87374594a00711ac5760d2ea6844 (git) Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < ffaaff82336db84e9b58e7a3e81c2fd64e05ed7a (git) Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < 258ec63c0f281bf7b50f9de67c8e93b5b7be5ed4 (git) Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < 3dcfb04dd43b16fa1240fc6487fff578ad57264c (git) Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < db8407b9fd06d857a4a5e8bcff1d086d13007711 (git) Affected: a7c0b07d570848e50fce4d31ac01313484d6b844 , < 7ef78d71ca713d8c00f7c34ddcf276c808143f77 (git)
Linux	Linux	Affected: 3.18 Unaffected: 0 , < 3.18 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kvm/vmx/vmx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c7cd3605244c924249dea32632e1bc3e89bda543",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "9a21f1defd96c6301c5fb462a78eb51b191bd2dd",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "570af5db081b87374594a00711ac5760d2ea6844",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "ffaaff82336db84e9b58e7a3e81c2fd64e05ed7a",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "258ec63c0f281bf7b50f9de67c8e93b5b7be5ed4",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "3dcfb04dd43b16fa1240fc6487fff578ad57264c",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "db8407b9fd06d857a4a5e8bcff1d086d13007711",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            },
            {
              "lessThan": "7ef78d71ca713d8c00f7c34ddcf276c808143f77",
              "status": "affected",
              "version": "a7c0b07d570848e50fce4d31ac01313484d6b844",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kvm/vmx/vmx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.18"
            },
            {
              "lessThan": "3.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.96",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.39",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.4",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2-rc1",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode\n\nWhen updating CR8 intercepts, get vmcs12 if and only if the vCPU is in\nguest mode so that a future change can have update CR8 intercepts during\nvCPU creation, without running afoul of get_vmcs12()\u0027s lockdep assertion.\n\n  ------------[ cut here ]------------\n  debug_locks \u0026\u0026 !(lock_is_held(\u0026(\u0026vcpu-\u003emutex)-\u003edep_map) || !refcount_read(\u0026vcpu-\u003ekvm-\u003eusers_count))\n  WARNING: arch/x86/kvm/vmx/nested.h:61 at get_vmcs12 arch/x86/kvm/vmx/nested.h:60 [inline], CPU#0: syz.2.19/5879\n  WARNING: arch/x86/kvm/vmx/nested.h:61 at vmx_update_cr8_intercept+0x3de/0x4e0 arch/x86/kvm/vmx/vmx.c:6879, CPU#0: syz.2.19/5879\n  Modules linked in:\n  CPU: 0 UID: 0 PID: 5879 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full)\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014\n  RIP: 0010:get_vmcs12 arch/x86/kvm/vmx/nested.h:60 [inline]\n  RIP: 0010:vmx_update_cr8_intercept+0x3de/0x4e0 arch/x86/kvm/vmx/vmx.c:6879\n  Call Trace:\n   \u003cTASK\u003e\n   apic_update_ppr arch/x86/kvm/lapic.c:984 [inline]\n   kvm_lapic_reset+0x1c24/0x2980 arch/x86/kvm/lapic.c:3023\n   kvm_vcpu_reset+0x44c/0x1bf0 arch/x86/kvm/x86.c:12986\n   kvm_arch_vcpu_create+0x746/0x8b0 arch/x86/kvm/x86.c:12847\n   kvm_vm_ioctl_create_vcpu+0x428/0x930 virt/kvm/kvm_main.c:4201\n   kvm_vm_ioctl+0x893/0xd50 virt/kvm/kvm_main.c:5159\n   vfs_ioctl fs/ioctl.c:51 [inline]\n   __do_sys_ioctl fs/ioctl.c:597 [inline]\n   __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583\n   do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n   do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\n   \u003c/TASK\u003e\n\nNo functional change intended."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-06T17:37:50.817Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c7cd3605244c924249dea32632e1bc3e89bda543"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a21f1defd96c6301c5fb462a78eb51b191bd2dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/570af5db081b87374594a00711ac5760d2ea6844"
        },
        {
          "url": "https://git.kernel.org/stable/c/ffaaff82336db84e9b58e7a3e81c2fd64e05ed7a"
        },
        {
          "url": "https://git.kernel.org/stable/c/258ec63c0f281bf7b50f9de67c8e93b5b7be5ed4"
        },
        {
          "url": "https://git.kernel.org/stable/c/3dcfb04dd43b16fa1240fc6487fff578ad57264c"
        },
        {
          "url": "https://git.kernel.org/stable/c/db8407b9fd06d857a4a5e8bcff1d086d13007711"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ef78d71ca713d8c00f7c34ddcf276c808143f77"
        }
      ],
      "title": "KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64604",
    "datePublished": "2026-08-06T07:13:55.718Z",
    "dateReserved": "2026-07-19T15:36:31.799Z",
    "dateUpdated": "2026-08-06T17:37:50.817Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

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FKIE_CVE-2026-64604

CVE-2026-64604 (GCVE-0-2026-64604)

Tags

Sightings

Nomenclature