{"id":"CVE-2022-49883","revision":"cbe0be748321413d9185b64b66281df7","records":[{"revision":"cbe0be748321413d9185b64b66281df7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2022-49883","aliases":[],"title":"KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: smm: number of GPRs in the SMRAM image depends on the image format\n\nOn 64 bit host, if the guest doesn't have X86_FEATURE_LM, KVM will\naccess 16 gprs to 32-bit smram image, causing out-ouf-bound ram\naccess.\n\nOn 32 bit host, the rsm_load_state_64/enter_smm_save_state_64\nis compiled out, thus access overflow can't happen.","state":0,"publishedAt":"2025-05-01T14:10:29.804+00:00","modifiedAt":"2026-10-15T21:31:17.152+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/kvm/emulate.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"b443183a25ab61840a12de92f8822849e017b9c8\",\n                            \"lessThan\": \"a7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b443183a25ab61840a12de92f8822849e017b9c8\",\n                            \"lessThan\": \"696db303e54f7352623d9f640e6c51d8fa9d5588\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/kvm/emulate.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.0.8\",\n                            \"lessThanOrEqual\": \"6.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/a7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494","https://git.kernel.org/stable/c/696db303e54f7352623d9f640e6c51d8fa9d5588"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-49883","license":"CVE Program Terms of Use","key":"cve-program:CVE-2022-49883","identifiers":["CVE-2022-49883"]},"retained":false,"historicalAffected":[]}],"coverage":[]}