KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit
In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit Always check and clear KVM_REQ_GET_NESTED_STATE_PAGES when emulating a nested VM-Exit to ensure the request is cleared, even when KVM was built with CONFIG_KVM_HYPERV=n, as KVM subtly relies on the "check" to clear the flag and thus avoid double-mapping the vmcs12 pages, e.g. if KVM manages to bail from VM-Enter without processing the request, and then emulates VMLAUNCH or VMRESUME.
CVE-2026-89931
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89931
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
"lessThan": "ae190f2439ca30067927077bf570d4c5edf07a0f",
"versionType": "git"
},
{
"status": "affected",
"version": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
"lessThan": "674a3244f07f323f21a106a7bdcaebb6db6a5058",
"versionType": "git"
},
{
"status": "affected",
"version": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
"lessThan": "bbec4adc2f340d85f4a77a9ddcddaa6b1f4639c5",
"versionType": "git"
},
{
"status": "affected",
"version": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
"lessThan": "11722439fb206c88e6f31be54173efa9880b4ccb",
"versionType": "git"
}
],
"programFiles": [
"arch/x86/kvm/vmx/nested.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.5",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/x86/kvm/vmx/nested.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89931
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36376 · Revision 1
- Added to Heist Feed
- Publisher date