{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49883","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-05-01T14:05:17.241Z","datePublished":"2025-05-01T14:10:29.804Z","dateUpdated":"2026-05-11T19:08:35.308Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:08:35.308Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kvm/emulate.c"],"versions":[{"version":"b443183a25ab61840a12de92f8822849e017b9c8","lessThan":"a7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494","status":"affected","versionType":"git"},{"version":"b443183a25ab61840a12de92f8822849e017b9c8","lessThan":"696db303e54f7352623d9f640e6c51d8fa9d5588","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/kvm/emulate.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.0.8","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1","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":"6.0","versionEndExcluding":"6.0.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494"},{"url":"https://git.kernel.org/stable/c/696db303e54f7352623d9f640e6c51d8fa9d5588"}],"title":"KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format","x_generator":{"engine":"bippy-1.2.0"}}}}