Bug 2348077 (CVE-2022-49611) - CVE-2022-49611 kernel: x86/speculation: Fill RSB on vmexit for IBRS
Summary: CVE-2022-49611 kernel: x86/speculation: Fill RSB on vmexit for IBRS
Keywords:
Status: NEW
Alias: CVE-2022-49611
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:16 UTC by OSIDB Bzimport
Modified: 2025-02-27 08:09 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2025-02-26 03:16:50 UTC 
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.
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