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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-72238

x86/boot: Validate console=uart8250 baud rate to fix early boot hang

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Status
Published
Published
Updated
Assigning organization
Linux

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < c1a276a731d02cbb728d0530f327a68728f2d8b0affected
  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < 24fbed0a2a45f5f379ef2b53bd2abe58be1142adaffected
  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < efa96a22613b86e05cd81229ce0be411c1a4a79aaffected
  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < 9a77a7639dfdc3eca417cd37620ce64da79c80c4affected
  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < b4d05032e9af7137eab8f3af2855073f896ca843affected
  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < f7c67c97b37c11f2a95c204092fb8159f2779e8faffected
  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207affected
  • ce0aa5dd20e44372f9617dd67c984f41fcdbed88 to < ffa0aa5b625fe0bed7463ac613f8b06676ff4542affected

Linux Linux

Default version status: affected

  • 2.6.36affected
  • 0 to < 2.6.36unaffected
  • 5.10.261 to ≤ 5.10.*unaffected
  • 5.15.212 to ≤ 5.15.*unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.97 to ≤ 6.12.*unaffected
  • 6.18.40 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References