RHEA-2019:4155 - Product Enhancement Advisory

Topic

An update for microcode_ctl is now available for Red Hat Enterprise Linux 6.

Description

The microcode_ctl packages provide microcode updates for Intel x86 processors.

The update includes the following changes:

• Update Intel CPU microcode to microcode-20191115 release:
• Addition of 06-4d-08/0x1 (AVN B0/C0) microcode at revision 0x12d;
• Addition of 06-55-06/0xbf (CSL-SP B0) microcode at revision 0x400002c;
• Addition of 06-7a-08/0x1 (GLK R0) microcode at revision 0x16;
• Update of 06-4e-03/0xc0 (SKL-U/Y D0) from revision 0xd4 up to 0xd6;
• Update of 06-55-03/0x97 (SKL-SP B1) microcode from revision 0x1000150

up to 0x1000151;

• Update of 06-55-04/0xb7 (SKL-SP H0/M0/U0, SKL-D M1) microcode from revision

0x2000064 up to 0x2000065;

• Update of 06-55-07/0xbf (CSL-SP B1) microcode from revision 0x500002b

up to 0x500002c;

• Update of 06-5e-03/0x36 (SKL-H/S/Xeon E3 R0/N0) from revision 0xd4

up to 0xd6;

• Update of 06-7a-01/0x1 (GLK B0) microcode from revision 0x2e up to 0x32;
• Update of 06-8e-09/0x10 (AML-Y 2+2 H0) from revision 0xc6 up to 0xca;
• Update of 06-8e-09/0xc0 (KBL-U/Y H0) from revision 0xc6 up to 0xca;
• Update of 06-8e-0a/0xc0 (CFL-U 4+3e D0) from revision 0xc6 up to 0xca;
• Update of 06-8e-0b/0xd0 (WHL-U W0) from revision 0xc6 up to 0xca;
• Update of 06-8e-0c/0x94 (AML-Y V0, CML-U 4+2 V0, WHL-U V0) from revision

0xc6 up to 0xca;

• Update of 06-9e-09/0x2a (KBL-G/X H0, KBL-H/S/Xeon E3 B0) from revision 0xc6

up to 0xca;

• Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E U0) from revision 0xc6 up to 0xca;
• Update of 06-9e-0b/0x02 (CFL-S B0) from revision 0xc6 up to 0xca;
• Update of 06-9e-0c/0x22 (CFL-S/Xeon E P0) from revision 0xae up to 0xca;
• Update of 06-9e-0d/0x22 (CFL-H/S R0) from revision 0xc6 up to 0xca;
• Update of 06-a6-00/0x80 (CML-U 6+2 A0) from revision 0xc6 up to 0xca.
• Update README.caveats with the link to the new Knowledge Base article.
• Do not update 06-55-04 (SKL-SP/W/X) to revision 0x2000065, use 0x2000064 by default.

(BZ#1755021, BZ#1774635)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Note: a system reboot is necessary for this update to take effect.

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64

Fixes

• BZ - 1774635 - [RHEL 6] Do not update SKL-SP/W/X (CPUID 0x50654, 06-55-04) to revision 0x2000065 by default

CVEs

(none)

References

(none)