{"id":"CVE-2022-49610","summary":"KVM: VMX: Prevent RSB underflow before vmenter","details":"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. ]","modified":"2026-04-11T12:44:17.560993Z","published":"2025-02-26T02:23:33.299Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1194-1","SUSE-SU-2025:1241-1","SUSE-SU-2025:1263-1","SUSE-SU-2025:1293-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49610.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/07853adc29a058c5fd143c14e5ac528448a72ed9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/afd743f6dde87296c6f3414706964c491bb85862"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49610.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49610"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d28b387fb74da95d69d2615732f50cceb38e9a4d"},{"fixed":"afd743f6dde87296c6f3414706964c491bb85862"},{"fixed":"07853adc29a058c5fd143c14e5ac528448a72ed9"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"44491a23b73789c0a914af4ea55ccf8968adf90b"},{"last_affected":"fc6aae9f407810cb153a9133c28735871f9f0a16"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49610.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.16.0"},{"fixed":"5.18.14"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49610.json"}}],"schema_version":"1.7.5"}