High
Security advisory
An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-39189
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 17:13 UTC · Revision 1
Source evidence
An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.
osv:CVE-2022-39189
Complete source record
{
"id": "7bea2a522299dcfbec3c2720092b7a8d2984dfc4cdf75ccdc8b1601a54890e75",
"url": "https://osv.dev/vulnerability/CVE-2022-39189",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2022-39189",
"summary": "An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.",
"evidence": "osv:CVE-2022-39189",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2022-39189",
"aliases": [
"A-245869446",
"ASB-A-245869446",
"CVE-2022-39189"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "6cd88243c7e03845a450795e134b488fc2afb736"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"fixed": "6cd88243c7e03845a450795e134b488fc2afb736"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
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"database_specific": {
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}
},
{
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{
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{
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-39189.json"
}
}
],
"modified": "2026-10-28T02:30:21.376718069Z",
"provider": "osv",
"references": [
"https://bugs.chromium.org/p/project-zero/issues/detail?id=2309",
"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17",
"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39189.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-39189",
"https://security.netapp.com/advisory/ntap-20230214-0007/",
"https://www.debian.org/security/2023/dsa-5480",
"https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736",
"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"
],
"provider_metadata": {
"cna_assigner": "mitre",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "5.18.17"
}
],
"source": "DESCRIPTION"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39189.json"
}
},
"related_cves": [
{
"value": "CVE-2022-39189",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 487598,
"published_at": "2022-09-02T00:00:00+00:00"
}