{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64105", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.034Z", "datePublished": "2026-07-19T15:40:08.605Z", "dateUpdated": "2026-07-19T15:40:08.605Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:40:08.605Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic: Free private_irqs when init fails after allocation\n\nCompanion to commit 250f25367b58 (\"KVM: arm64: Tear down vGIC on\nfailed vCPU creation\"), which added the missing kvm_vgic_vcpu_destroy()\ncall to the kvm_share_hyp() failure path in kvm_arch_vcpu_create(). The\nkvm_vgic_vcpu_init() failure path immediately above it has the same\nshape and still needs the same cleanup.\n\nCall kvm_vgic_vcpu_destroy() when kvm_vgic_vcpu_init() fails so private\nIRQs allocated before a redistributor iodev registration failure are\nreleased before the failed vCPU is freed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kvm/arm.c"], "versions": [{"version": "03b3d00a70b55857439511c1b558ca00a99f4126", "lessThan": "173fb86e5519dbe7aabed1f5fa7456152a4a2e38", "status": "affected", "versionType": "git"}, {"version": "03b3d00a70b55857439511c1b558ca00a99f4126", "lessThan": "7023900b4988fb6f4a59d304d878003ff562e98d", "status": "affected", "versionType": "git"}, {"version": "03b3d00a70b55857439511c1b558ca00a99f4126", "lessThan": "e690caa54a6139d98495ac69626807623520babd", "status": "affected", "versionType": "git"}, {"version": "03b3d00a70b55857439511c1b558ca00a99f4126", "lessThan": "f19c354dbd457759dfcf1195ab4bdba2bb568323", "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/arm.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.10", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/173fb86e5519dbe7aabed1f5fa7456152a4a2e38"}, {"url": "https://git.kernel.org/stable/c/7023900b4988fb6f4a59d304d878003ff562e98d"}, {"url": "https://git.kernel.org/stable/c/e690caa54a6139d98495ac69626807623520babd"}, {"url": "https://git.kernel.org/stable/c/f19c354dbd457759dfcf1195ab4bdba2bb568323"}], "title": "KVM: arm64: vgic: Free private_irqs when init fails after allocation", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: KVM: arm64: vgic: Free private_irqs when init fails after allocation", "id": "2502556", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502556"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nKVM: arm64: vgic: Free private_irqs when init fails after allocation\nCompanion to commit 250f25367b58 (\"KVM: arm64: Tear down vGIC on\nfailed vCPU creation\"), which added the missing kvm_vgic_vcpu_destroy()\ncall to the kvm_share_hyp() failure path in kvm_arch_vcpu_create(). The\nkvm_vgic_vcpu_init() failure path immediately above it has the same\nshape and still needs the same cleanup.\nCall kvm_vgic_vcpu_destroy() when kvm_vgic_vcpu_init() fails so private\nIRQs allocated before a redistributor iodev registration failure are\nreleased before the failed vCPU is freed.", "A flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) for ARM64 architecture, specifically within the virtual Generic Interrupt Controller (vgic) component. When a virtual CPU (vCPU) fails to initialize, the private Interrupt ReQuests (IRQs) allocated for it are not properly released. This resource leak could potentially be exploited by a local attacker to cause a Denial of Service (DoS) by exhausting system resources."], "name": "CVE-2026-64105", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64105\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64105\nhttps://lore.kernel.org/linux-cve-announce/2026071921-CVE-2026-64105-8d68@gregkh/T"], "threat_severity": "Low"}

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