{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49610", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:21:30.417Z", "datePublished": "2025-02-26T02:23:33.299Z", "dateUpdated": "2025-05-04T08:41:44.644Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:41:44.644Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: VMX: Prevent RSB underflow before vmenter\n\nOn VMX, there are some balanced returns between the time the guest's\nSPEC_CTRL value is written, and the vmenter.\n\nBalanced returns (matched by a preceding call) are usually ok, but it's\nat least theoretically possible an NMI with a deep call stack could\nempty the RSB before one of the returns.\n\nFor maximum paranoia, don't allow *any* returns (balanced or otherwise)\nbetween the SPEC_CTRL write and the vmenter.\n\n [ bp: Fix 32-bit build. ]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kernel/asm-offsets.c", "arch/x86/kernel/cpu/bugs.c", "arch/x86/kvm/vmx/capabilities.h", "arch/x86/kvm/vmx/vmenter.S", "arch/x86/kvm/vmx/vmx.c", "arch/x86/kvm/vmx/vmx.h", "arch/x86/kvm/vmx/vmx_ops.h"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "afd743f6dde87296c6f3414706964c491bb85862", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "07853adc29a058c5fd143c14e5ac528448a72ed9", "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/x86/kernel/asm-offsets.c", "arch/x86/kernel/cpu/bugs.c", "arch/x86/kvm/vmx/capabilities.h", "arch/x86/kvm/vmx/vmenter.S", "arch/x86/kvm/vmx/vmx.c", "arch/x86/kvm/vmx/vmx.h", "arch/x86/kvm/vmx/vmx_ops.h"], "versions": [{"version": "5.18.14", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/afd743f6dde87296c6f3414706964c491bb85862"}, {"url": "https://git.kernel.org/stable/c/07853adc29a058c5fd143c14e5ac528448a72ed9"}], "title": "KVM: VMX: Prevent RSB underflow before vmenter", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: VMX: Prevent RSB underflow before vmenter\n\nOn VMX, there are some balanced returns between the time the guest's\nSPEC_CTRL value is written, and the vmenter.\n\nBalanced returns (matched by a preceding call) are usually ok, but it's\nat least theoretically possible an NMI with a deep call stack could\nempty the RSB before one of the returns.\n\nFor maximum paranoia, don't allow *any* returns (balanced or otherwise)\nbetween the SPEC_CTRL write and the vmenter.\n\n [ bp: Fix 32-bit build. ]"}], "id": "CVE-2022-49610", "lastModified": "2025-02-26T07:01:36.463", "metrics": {}, "published": "2025-02-26T07:01:36.463", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/07853adc29a058c5fd143c14e5ac528448a72ed9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/afd743f6dde87296c6f3414706964c491bb85862"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: KVM: VMX: Prevent RSB underflow before vmenter", "id": "2347926", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347926"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nKVM: VMX: Prevent RSB underflow before vmenter\nOn VMX, there are some balanced returns between the time the guest's\nSPEC_CTRL value is written, and the vmenter.\nBalanced returns (matched by a preceding call) are usually ok, but it's\nat least theoretically possible an NMI with a deep call stack could\nempty the RSB before one of the returns.\nFor maximum paranoia, don't allow *any* returns (balanced or otherwise)\nbetween the SPEC_CTRL write and the vmenter.\n[ bp: Fix 32-bit build. ]"], "name": "CVE-2022-49610", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49610\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49610\nhttps://lore.kernel.org/linux-cve-announce/2025022613-CVE-2022-49610-5628@gregkh/T"], "threat_severity": "Moderate"}