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.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < c1a276a731d02cbb728d0530f327a68728f2d8b0; >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad; >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < efa96a22613b86e05cd81229ce0be411c1a4a79a; >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < 9a77a7639dfdc3eca417cd37620ce64da79c80c4; >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < b4d05032e9af7137eab8f3af2855073f896ca843; >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < f7c67c97b37c11f2a95c204092fb8159f2779e8f; >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207; >= ce0aa5dd20e44372f9617dd67c984f41fcdbed88, < ffa0aa5b625fe0bed7463ac613f8b06676ff4542 |
| Linux | Linux | 2.6.36 |
References
- https://git.kernel.org/stable/c/24fbed0a2a45f5f379ef2b53bd2abe58be1142ad
- https://git.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207
- https://git.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4
- https://git.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843
- https://git.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0
- https://git.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79a
- https://git.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8f
- https://git.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542
Timeline
- Published
- Aug 15, 2026
- Last modified
- Aug 17, 2026
- NVD status
- Received