SUSE-RU-2020:2630-1: moderate: Recommended update for biosdevname

[sle-updates at lists.suse.com]

   SUSE Recommended Update: Recommended update for biosdevname
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Announcement ID:    SUSE-RU-2020:2630-1
Rating:             moderate
References:         #1174491 
Affected Products:
                    SUSE Linux Enterprise Module for Basesystem 15-SP2
                    SUSE Linux Enterprise Module for Basesystem 15-SP1
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   An update that has one recommended fix can now be installed.

Description:

   This update for biosdevname fixes the following issues:


   - Read DMI info rom sysfs. (bsc#1174491)

     A kernel with Secure Boot lockdown may prohibit reading the contents of
   /dev/mem, hence biosdevname fails. The recent kernel provides the DMI byte
   contents in /sys/firmware/dmi/tables/*.

   - Add buffer read helper using read explicitly.

     mmap can't work well with a sysfs file and it's required to read the
   contents explicitly via read, even if USE_MMAP is enabled.


Patch Instructions:

   To install this SUSE Recommended Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Module for Basesystem 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-2630=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-2630=1



Package List:

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (x86_64):

      biosdevname-0.7.3-5.3.1
      biosdevname-debuginfo-0.7.3-5.3.1
      biosdevname-debugsource-0.7.3-5.3.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP1 (x86_64):

      biosdevname-0.7.3-5.3.1
      biosdevname-debuginfo-0.7.3-5.3.1
      biosdevname-debugsource-0.7.3-5.3.1


References:

   https://bugzilla.suse.com/1174491