CVE-2022-49611
x86/speculation: Fill RSB on vmexit for IBRS
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
b9cdaaf0a3becc52e8b4662fef28c452c4f009b4 < 3d323b99ff5c8c57005184056d65f6af5b0479d8 117cc7a908c83697b0b737d15ae1eb5943afe35b < f744b88dfc201bf8092833ec70b23c720188b527 117cc7a908c83697b0b737d15ae1eb5943afe35b < 17a9fc4a7b91f8599223631bb6ae6416bc0de1c0 117cc7a908c83697b0b737d15ae1eb5943afe35b < 4d7f72b6e1bc630bec7e4cd51814bc2b092bf153 117cc7a908c83697b0b737d15ae1eb5943afe35b < 8d5cff499a6d740c91ff37963907e0e983c37f0f 117cc7a908c83697b0b737d15ae1eb5943afe35b < 8c38306e2e9257af4af2819aa287a4711ff36329 117cc7a908c83697b0b737d15ae1eb5943afe35b < 9756bba28470722dacb79ffce554336dd1f6a6cd 68d1f7a3f1a35639a563bbad768d5df885b4ff05 20e080e2752d108388d386ecc0b33d7797dfb18f eebc3f8adee0a6f43a4789ef0bf5c5b35de8cfe4 c1ddd99a029636e234a800f28790a60d6ac0318f
Linux / Linux
4.15
References
git.kernel.org: https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8 git.kernel.org: https://git.kernel.org/stable/c/f744b88dfc201bf8092833ec70b23c720188b527 git.kernel.org: https://git.kernel.org/stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0 git.kernel.org: https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153 git.kernel.org: https://git.kernel.org/stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f git.kernel.org: https://git.kernel.org/stable/c/8c38306e2e9257af4af2819aa287a4711ff36329 git.kernel.org: https://git.kernel.org/stable/c/9756bba28470722dacb79ffce554336dd1f6a6cd