vulnerability

Red Hat: CVE-2022-49611: kernel: x86/speculation: Fill RSB on vmexit for IBRS

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:N)
Published
Feb 26, 2025
Added
Jul 9, 2025
Modified
Jul 21, 2025

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.

Solution

no-fix-redhat-rpm-package
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.