CVE-2026-72238
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linuxc1a276a731d02cbb728d0530f327a68728f2d8b0, 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad, efa96a22613b86e05cd81229ce0be411c1a4a79a, 9a77a7639dfdc3eca417cd37620ce64da79c80c4, b4d05032e9af7137eab8f3af2855073f896ca843, f7c67c97b37c11f2a95c204092fb8159f2779e8f, 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207, ffa0aa5b625fe0bed7463ac613f8b06676ff4542 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < c1a276a731d02cbb728d0530f327a68728f2d8b0, ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad, ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < efa96a22613b86e05cd81229ce0be411c1a4a79a, ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < 9a77a7639dfdc3eca417cd37620ce64da79c80c4, ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < b4d05032e9af7137eab8f3af2855073f896ca843, ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < f7c67c97b37c11f2a95c204092fb8159f2779e8f, ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207, ce0aa5dd20e44372f9617dd67c984f41fcdbed88 ≤ v < ffa0aa5b625fe0bed7463ac613f8b06676ff4542, 2.6.36 | c1a276a731d02cbb728d0530f327a68728f2d8b0, 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad, efa96a22613b86e05cd81229ce0be411c1a4a79a, 9a77a7639dfdc3eca417cd37620ce64da79c80c4, b4d05032e9af7137eab8f3af2855073f896ca843, f7c67c97b37c11f2a95c204092fb8159f2779e8f, 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207, ffa0aa5b625fe0bed7463ac613f8b06676ff4542 |
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