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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0022.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < c1a276a731d02cbb728d0530f327a68728f2d8b0
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < efa96a22613b86e05cd81229ce0be411c1a4a79a
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < 9a77a7639dfdc3eca417cd37620ce64da79c80c4
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < b4d05032e9af7137eab8f3af2855073f896ca843
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < f7c67c97b37c11f2a95c204092fb8159f2779e8f
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207
ce0aa5dd20e44372f9617dd67c984f41fcdbed88 affected < ffa0aa5b625fe0bed7463ac613f8b06676ff4542
Linux Linux affected
Version Status Constraints
2.6.36 affected —
0 unaffected < 2.6.36
5.10.261 unaffected ≤ 5.10.*
5.15.212 unaffected ≤ 5.15.*
6.1.178 unaffected ≤ 6.1.*
6.6.145 unaffected ≤ 6.6.*
6.12.97 unaffected ≤ 6.12.*
6.18.40 unaffected ≤ 6.18.*
7.1.5 unaffected ≤ 7.1.*
7.2-rc4 unaffected ≤ *

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/24fbed0a2a45f5f379ef2b53bd2abe58be1142ad cve-icon cve-icon
https://git.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207 cve-icon cve-icon
https://git.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4 cve-icon cve-icon
https://git.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843 cve-icon cve-icon
https://git.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0 cve-icon cve-icon
https://git.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79a cve-icon cve-icon
https://git.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8f cve-icon cve-icon
https://git.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542 cve-icon cve-icon
History

Sat, 15 Aug 2026 10:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-369

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
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.
Title x86/boot: Validate console=uart8250 baud rate to fix early boot hang
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-15T05:54:27.424Z

Reserved: 2026-08-09T03:40:39.914Z

Link: CVE-2026-72238

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:21:50.850

Modified: 2026-08-15T06:21:50.850

Link: CVE-2026-72238

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-15T10:30:05Z

Weaknesses