CVE-2026-64562
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: nVMX: Hide shadow VMCS right after VMCLEAR
free_nested() frees the shadow VMCS while vmcs01 still points to it. But
because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU
might migrate before the pointer is cleared and __loaded_vmcs_clear()
may then execute VMCLEAR.
The VMCS needs to stay attached until its explicit VMCLEAR completes, but
then it can be hidden and the page safely freed.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:15 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/4f50e6aec16f69627dbad5704d1e90a255d766a7
Added
Reference
https://git.kernel.org/stable/c/b82c3144d8264265448292ca406f60bafeba3b6f
Added
Reference
https://git.kernel.org/stable/c/dc3eecfa219ebc9d01eaf7d1abd1441efe884dab
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"af56298e9d86e6098cd1d2e155cb2949b7c45412","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"589419470030a89f16cf19300658b6dc644ca946","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"8001d2ce9d9bd09118ce523aef595aa094573ae3","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"1dabef6e206568bf9d9ade74f6e56a48ea35695d","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"622ebfac01ba4f9c0060cebd41257fe46fc4a0b3","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2461 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"b82c3144d8264265448292ca406f60bafeba3b6f","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"4f50e6aec16f69627dbad5704d1e90a255d766a7","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"dc3eecfa219ebc9d01eaf7d1abd1441efe884dab","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"af56298e9d86e6098cd1d2e155cb2949b7c45412","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"589419470030a89f16cf19300658b6dc644ca946","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"8001d2ce9d9bd09118ce523aef595aa094573ae3","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"1dabef6e206568bf9d9ade74f6e56a48ea35695d","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"622ebfac01ba4f9c0060cebd41257fe46fc4a0b3","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","versionType":"semver","status":"unaffected"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"se
CVE Modified by kernel.org
8/17/2026 1:18:02 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"af56298e9d86e6098cd1d2e155cb2949b7c45412","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"589419470030a89f16cf19300658b6dc644ca946","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"8001d2ce9d9bd09118ce523aef595aa094573ae3","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"1dabef6e206568bf9d9ade74f6e56a48ea35695d","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"622ebfac01ba4f9c0060cebd41257fe46fc4a0b3","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"af56298e9d86e6098cd1d2e155cb2949b7c45412","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"589419470030a89f16cf19300658b6dc644ca946","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"8001d2ce9d9bd09118ce523aef595aa094573ae3","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"1dabef6e206568bf9d9ade74f6e56a48ea35695d","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"622ebfac01ba4f9c0060cebd41257fe46fc4a0b3","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/08/2026 11:16:31 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
New CVE Received from kernel.org
8/04/2026 3:16:31 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: nVMX: Hide shadow VMCS right after VMCLEAR
free_nested() frees the shadow VMCS while vmcs01 still points to it. But
because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU
might migrate before the pointer is cleared and __loaded_vmcs_clear()
may then execute VMCLEAR.
The VMCS needs to stay attached until its explicit VMCLEAR completes, but
then it can be hidden and the page safely freed.
Added
Reference
https://git.kernel.org/stable/c/1dabef6e206568bf9d9ade74f6e56a48ea35695d
Added
Reference
https://git.kernel.org/stable/c/589419470030a89f16cf19300658b6dc644ca946
Added
Reference
https://git.kernel.org/stable/c/622ebfac01ba4f9c0060cebd41257fe46fc4a0b3
Added
Reference
https://git.kernel.org/stable/c/8001d2ce9d9bd09118ce523aef595aa094573ae3
Added
Reference
https://git.kernel.org/stable/c/af56298e9d86e6098cd1d2e155cb2949b7c45412
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"af56298e9d86e6098cd1d2e155cb2949b7c45412","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"589419470030a89f16cf19300658b6dc644ca946","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"8001d2ce9d9bd09118ce523aef595aa094573ae3","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"1dabef6e206568bf9d9ade74f6e56a48ea35695d","versionType":"git","status":"affected"},{"version":"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5","lessThan":"622ebfac01ba4f9c0060cebd41257fe46fc4a0b3","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["arch/x86/kvm/vmx/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-64562 NVD
Published Date: 08/04/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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