Unrated severityNVD Advisory· Published Aug 15, 2026
CVE-2026-72238
CVE-2026-72238
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.
Affected products
1Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/24fbed0a2a45f5f379ef2b53bd2abe58be1142adnvd
- git.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207nvd
- git.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4nvd
- git.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843nvd
- git.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0nvd
- git.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79anvd
- git.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8fnvd
- git.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542nvd
News mentions
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