CVE-2026-89727

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89727", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.759Z", "datePublished": "2026-09-11T19:46:38.291Z", "dateUpdated": "2026-10-19T08:51:40.580Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:51:40.580Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID\n\nvgic_v2_deactivate() passes the INTID a guest wrote to GICV_DIR straight\nto vgic_get_vcpu_irq(), and treats a failed lookup as a \"can't happen\"\ncondition with WARN_ON_ONCE().\n\nThe guest can make it happen at will, though: for any INTID outside of\nthe implemented SGI, PPI and SPI ranges the lookup returns NULL, since\nGICv2 has no LPIs. A guest running with EOImode==1 writing such an INTID\nto GICV_DIR triggers the WARN, and panics hosts running with\npanic_on_warn.\n\nDrop the WARN and ignore failed lookups."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kvm/vgic/vgic-v2.c"], "versions": [{"version": "255de897e7fb918a34845167c572b5bf8e1d9d79", "lessThan": "78b95c571d021391153a5ac7981e9e4d5cc856a3", "status": "affected", "versionType": "git"}, {"version": "255de897e7fb918a34845167c572b5bf8e1d9d79", "lessThan": "c6d9c8ac6521d3049ec90ac58bebd23ed03ac496", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kvm/vgic/vgic-v2.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/78b95c571d021391153a5ac7981e9e4d5cc856a3"}, {"url": "https://git.kernel.org/stable/c/c6d9c8ac6521d3049ec90ac58bebd23ed03ac496"}], "title": "KVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/arm64/kvm/vgic/vgic-v2.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "78b95c571d021391153a5ac7981e9e4d5cc856a3", "status": "affected", "version": "255de897e7fb918a34845167c572b5bf8e1d9d79", "versionType": "git"}, {"lessThan": "c6d9c8ac6521d3049ec90ac58bebd23ed03ac496", "status": "affected", "version": "255de897e7fb918a34845167c572b5bf8e1d9d79", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/arm64/kvm/vgic/vgic-v2.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"lessThan": "6.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID\n\nvgic_v2_deactivate() passes the INTID a guest wrote to GICV_DIR straight\nto vgic_get_vcpu_irq(), and treats a failed lookup as a \"can't happen\"\ncondition with WARN_ON_ONCE().\n\nThe guest can make it happen at will, though: for any INTID outside of\nthe implemented SGI, PPI and SPI ranges the lookup returns NULL, since\nGICv2 has no LPIs. A guest running with EOImode==1 writing such an INTID\nto GICV_DIR triggers the WARN, and panics hosts running with\npanic_on_warn.\n\nDrop the WARN and ignore failed lookups."}], "id": "CVE-2026-89727", "lastModified": "2026-10-19T09:18:14.503", "metrics": {}, "published": "2026-09-11T20:20:03.027", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/78b95c571d021391153a5ac7981e9e4d5cc856a3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c6d9c8ac6521d3049ec90ac58bebd23ed03ac496"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: KVM: arm64: Host Denial of Service due to out-of-range GICv2 interrupt ID from guest", "id": "2532521", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532521"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-617", "details": ["A flaw was found in the Kernel-based Virtual Machine (KVM) for ARM64 (arm64) architecture. A malicious guest operating system can provide an interrupt ID (INTID) that is outside the expected range to the GICv2 (Generic Interrupt Controller version 2) during interrupt deactivation. This can trigger a warning condition in the host kernel, potentially leading to a host system crash and resulting in a Denial of Service (DoS) for the host."], "name": "CVE-2026-89727", "public_date": "2026-09-11T19:46:38Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89727\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89727\nhttps://git.kernel.org/stable/c/78b95c571d021391153a5ac7981e9e4d5cc856a3\nhttps://git.kernel.org/stable/c/c6d9c8ac6521d3049ec90ac58bebd23ed03ac496"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[255de897e7fb918a34845167c572b5bf8e1d9d79,78b95c571d021391153a5ac7981e9e4d5cc856a3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[255de897e7fb918a34845167c572b5bf8e1d9d79,c6d9c8ac6521d3049ec90ac58bebd23ed03ac496)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-12T08:15:07.026049+00:00", "updated": "2026-09-15T19:30:12.139867+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}