Memory corruption on boot with UEFI

This document (7018028) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 12 Service Pack 1 (SLES 12 SP1)

Situation

A memory corruption issue affecting systems that use UEFI to boot
was discovered in the SUSE Linux Enterprise 12 SP1 kernel.

The function init_hibernation_keys(), which is executed exclusively
at boot time, erroneously freed a block of memory that had been
unreserved earlier and could be already re-allocated to store data
such as the initial system ram disk. In some circumstances this
could lead to a boot failure.

Resolution

Users are advised to update to the latest kernel maintenance update
released for SLE 12 SP1. Version 3.12.62-60.62.1 and newer already
include the fix for this issue

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7018028
  • Creation Date: 08-Sep-2016
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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