{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46071","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.095Z","datePublished":"2026-05-27T12:57:57.316Z","dateUpdated":"2026-06-14T17:52:10.514Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-14T17:52:10.514Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nSVM: Avoid clearing VMCB_LBR in vmcb12\n\nsvm_copy_lbrs() always marks VMCB_LBR dirty in the destination VMCB.\nHowever, nested_svm_vmexit() uses it to copy LBRs to vmcb12, and\nclearing clean bits in vmcb12 is not architecturally defined.\n\nMove vmcb_mark_dirty() to callers and drop it for vmcb12.\n\nThis also facilitates incoming refactoring that does not pass the entire\nVMCB to svm_copy_lbrs()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c"],"versions":[{"version":"d20c796ca3709801f8a7fa36e8770a3dd8ebd34e","lessThan":"a3f0981a5a0e0bd51ad74cc7d9eed32294b24002","status":"affected","versionType":"git"},{"version":"d20c796ca3709801f8a7fa36e8770a3dd8ebd34e","lessThan":"9efe23568806d1cd06f7d146f9b3037b8d585a9f","status":"affected","versionType":"git"},{"version":"d20c796ca3709801f8a7fa36e8770a3dd8ebd34e","lessThan":"b53ab5167a81537777ac780bbd93d32613aa3bda","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/svm/nested.c","arch/x86/kvm/svm/svm.c"],"versions":[{"version":"5.19","status":"affected"},{"version":"0","lessThan":"5.19","status":"unaffected","versionType":"semver"},{"version":"6.18.27","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.4","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":"5.19","versionEndExcluding":"6.18.27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"7.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a3f0981a5a0e0bd51ad74cc7d9eed32294b24002"},{"url":"https://git.kernel.org/stable/c/9efe23568806d1cd06f7d146f9b3037b8d585a9f"},{"url":"https://git.kernel.org/stable/c/b53ab5167a81537777ac780bbd93d32613aa3bda"}],"title":"KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12","x_generator":{"engine":"bippy-1.2.0"}}}}