VYPR
Unrated severityNVD Advisory· Published Feb 26, 2025· Updated Dec 23, 2025

x86/speculation: Fill RSB on vmexit for IBRS

CVE-2022-49611

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

135

Patches

Vulnerability mechanics

References

7

News mentions

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