CVE-2022-49611

Published: Feb 26, 2025Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

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.

Affected (12)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

12 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 4.14.297
Linux Linux Kernel	From 4.15 to 4.19.266
Linux Linux Kernel	From 4.20 to 5.4.217
Linux Linux Kernel	From 5.11 to 5.15.57
Linux Linux Kernel	From 5.16 to 5.18.14
Linux Linux Kernel	From 5.5 to 5.10.133
Linux Linux Kernel	Version 5.19 rc1
Linux Linux Kernel	Version 5.19 rc2
Linux Linux Kernel	Version 5.19 rc3
Linux Linux Kernel	Version 5.19 rc4
Linux Linux Kernel	Version 5.19 rc5
Linux Linux Kernel	Version 5.19 rc6