CVE-2026-72238

medium

Description

In the Linux kernel, the following vulnerability has been resolved: x86/boot: Validate console=uart8250 baud rate to fix early boot hang When the baud rate is empty, 0, invalid, or overflows to 0 when stored as an int, the system will hang during early boot because of a division by zero in early_serial_init(). Fall back to DEFAULT_BAUD when the resulting baud rate is 0 to prevent an early system hang.

References

https://git.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542

https://git.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8f

https://git.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79a

https://git.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0

https://git.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843

https://git.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4

https://git.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207

https://git.kernel.org/stable/c/24fbed0a2a45f5f379ef2b53bd2abe58be1142ad

Details

Source: Mitre, NVD

Published: 2026-08-15

Updated: 2026-08-17

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium

EPSS

EPSS: 0.0022