CVE-2026-72238x86/boot: Validate console=uart8250 baud rate to fix early boot hang
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before c1a276a731d02cbb728d0530f327a68728f2d8b0; from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad; from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before efa96a22613b86e05cd81229ce0be411c1a4a79a; from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before 9a77a7639dfdc3eca417cd37620ce64da79c80c4; from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before b4d05032e9af7137eab8f3af2855073f896ca843; from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before f7c67c97b37c11f2a95c204092fb8159f2779e8f; from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207; from ce0aa5dd20e44372f9617dd67c984f41fcdbed88 before ffa0aa5b625fe0bed7463ac613f8b06676ff4542 | CNA record |
References
- https://git.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0
- https://git.kernel.org/stable/c/24fbed0a2a45f5f379ef2b53bd2abe58be1142ad
- https://git.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79a
- https://git.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4
- https://git.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843
- https://git.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8f
- https://git.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207
- https://git.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.