{"id":"CVE-2022-49611","summary":"x86/speculation: Fill RSB on vmexit for IBRS","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/speculation: Fill RSB on vmexit for IBRS\n\nPrevent RSB underflow/poisoning attacks with RSB.  While at it, add a\nbunch of comments to attempt to document the current state of tribal\nknowledge about RSB attacks and what exactly is being mitigated.","modified":"2026-05-18T05:56:58.731727566Z","published":"2025-02-26T02:23:33.779Z","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-2022-49611.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8c38306e2e9257af4af2819aa287a4711ff36329"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9756bba28470722dacb79ffce554336dd1f6a6cd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f744b88dfc201bf8092833ec70b23c720188b527"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49611.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49611"},{"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":"b9cdaaf0a3becc52e8b4662fef28c452c4f009b4"},{"fixed":"3d323b99ff5c8c57005184056d65f6af5b0479d8"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"117cc7a908c83697b0b737d15ae1eb5943afe35b"},{"fixed":"f744b88dfc201bf8092833ec70b23c720188b527"},{"fixed":"17a9fc4a7b91f8599223631bb6ae6416bc0de1c0"},{"fixed":"4d7f72b6e1bc630bec7e4cd51814bc2b092bf153"},{"fixed":"8d5cff499a6d740c91ff37963907e0e983c37f0f"},{"fixed":"8c38306e2e9257af4af2819aa287a4711ff36329"},{"fixed":"9756bba28470722dacb79ffce554336dd1f6a6cd"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"68d1f7a3f1a35639a563bbad768d5df885b4ff05"},{"last_affected":"20e080e2752d108388d386ecc0b33d7797dfb18f"},{"last_affected":"eebc3f8adee0a6f43a4789ef0bf5c5b35de8cfe4"},{"last_affected":"c1ddd99a029636e234a800f28790a60d6ac0318f"}]}],"versions":["v4.14.296","v4.14.295","v4.14.294","v4.14.293","v4.14.292","v4.14.291","v4.14.290","v4.14.289","v4.14.288","v4.14.287","v4.14.286","v4.14.285","v4.14.284","v4.14.283","v4.14.282","v4.14.281","v4.14.280","v4.14.279","v4.14.278","v4.14.277","v4.14.276","v4.14.275","v4.14.274","v4.14.273","v4.14.272","v4.14.271","v4.14.270","v4.14.269","v4.14.268","v4.14.267","v4.14.266","v4.14.265","v4.14.264","v4.14.263","v4.14.262","v4.14.261","v4.14.260","v4.14.259","v4.14.258","v4.14.257","v4.14.256","v4.14.255","v4.14.254","v4.14.253","v4.14.252","v4.14.251","v4.14.250","v4.14.249","v4.14.248","v4.14.247","v4.14.246","v4.14.245","v4.14.244","v4.14.243","v4.14.242","v4.14.241","v4.14.240","v4.14.239","v4.14.238","v4.14.237","v4.14.236","v4.14.235","v4.14.234","v4.14.233","v4.14.232","v4.14.231","v4.14.230","v4.14.229","v4.14.228","v4.14.227","v4.14.226","v4.14.225","v4.14.224","v4.14.223","v4.14.222","v4.14.221","v4.14.220","v4.14.219","v4.14.218","v4.14.217","v4.14.216","v4.14.215","v4.14.214","v4.14.213","v4.14.212","v4.14.211","v4.14.210","v4.14.209","v4.14.208","v4.14.207","v4.14.206","v4.14.205","v4.14.204","v4.14.203","v4.14.202","v4.14.201","v4.14.200","v4.14.199","v4.14.198","v4.14.197","v4.14.196","v4.14.195","v4.14.194","v4.14.193","v4.14.192","v4.14.191","v4.14.190","v4.14.189","v4.14.188","v4.14.187","v4.14.186","v4.14.185","v4.14.184","v4.14.183","v4.14.182","v4.14.181","v4.14.180","v4.14.179","v4.14.178","v4.14.177","v4.14.176","v4.14.175","v4.14.174","v4.14.173","v4.14.172","v4.14.171","v4.14.170","v4.14.169","v4.14.168","v4.14.167","v4.14.166","v4.14.165","v4.14.164","v4.14.163","v4.14.162","v4.14.161","v4.14.160","v4.14.159","v4.14.158","v4.14.157","v4.14.156","v4.14.155","v4.14.154","v4.14.153","v4.14.152","v4.14.151","v4.14.150","v4.14.149","v4.14.148","v4.14.147","v4.14.146","v4.14.145","v4.14.144","v4.14.143","v4.14.142","v4.14.141","v4.14.140","v4.14.139","v4.14.138","v4.14.137","v4.14.136","v4.14.135","v4.14.134","v4.14.133","v4.14.132","v4.14.131","v4.14.130","v4.14.129","v4.14.128","v4.14.127","v4.14.126","v4.14.125","v4.14.124","v4.14.123","v4.14.122","v4.14.121","v4.14.120","v4.14.119","v4.14.118","v4.14.117","v4.14.116","v4.14.115","v4.14.114","v4.14.113","v4.14.112","v4.14.111","v4.14.110","v4.14.109","v4.14.108","v4.14.107","v4.14.106","v4.14.105","v4.14.104","v4.14.103","v4.14.102","v4.14.101","v4.14.100","v4.14.99","v4.14.98","v4.14.97","v4.14.96","v4.14.95","v4.14.94","v4.14.93","v4.14.92","v4.14.91","v4.14.90","v4.14.89","v4.14.88","v4.14.87","v4.14.86","v4.14.85","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