ELBA-2026-1351

ELBA-2026-1351 - microcode_ctl bug fix and enhancement update

Type:	BUG
Impact:	NA
Release Date:	2026-01-27

Description

[20250812-1.20251111.1.0.1]
- add support for UEK7/UEK8 and ueknext kernels
- don't bother calling dracut if virtualized [Orabug: 35710094]
- ensure UEK also rebuilds initramfs [Orabug: 34280058]
- enable early update for 06-4f-01
- remove no longer appropriate caveats for 06-2d-07 and 06-55-04
- enable early and late load on RHCK

[4:20250812-1.20251111-1]
- Fix typo in /usr/share/microcode_ctl/ucode_with_caveats/intel-06-8f-08/config
- Update Intel CPU microcode to microcode-20251111 release (RHEL-128260)
- New microcode files (in hex):
06-ae-01: Granite Rapids-D: revision 1000273
- Microcode files (/platform_mask shown) with revision updates (in hex):
06-8f-07/87: Sapphire Rapids: 2b000643 to 2b000650
06-8f-08/10: Sapphire Rapids with HBM: 2c000401 to 2c000410
06-8f-08/87: Sapphire Rapids: 2b000643 to 2b000650
06-97-02/07: Alder Lake: 003a to 003d
06-97-05/07: Alder Lake: 003a to 003d
06-9a-03/80: Alder Lake-L: 0437 to 043a
06-9a-04/80: Alder Lake-L: 0437 to 043a
06-9a-04/40: Arizona Beach (Atom C11xx): 000a to 000b
06-ad-01/95: Granite Rapids-X: 10003d0 to 10003f0
06-ad-01/20: Granite Rapids-X: a000100 to a000124
06-af-03/01: Crestmont (Sierra Forest): 3000362 to 3000382
06-b7-01/32: Raptor Lake: 012f to 0132
06-ba-02/e0: Raptor Lake-P: 4129 to 6133
06-ba-03/e0: Raptor Lake-P: 4129 to 6133
06-bd-01/80: Lunar Lake: 0123 to 0125
06-be-00/19: Gracemont (Alder Lake-N): 001d to 001e
06-bf-02/07: Raptor Lake-S: 003a to 003d
06-bf-05/07: Raptor Lake-S: 003a to 003d
06-c5-02/82: Arrow Lake-H: 0119 to 011a
06-c6-02/82: Arrow Lake: 0119 to 011a
06-cf-02/87: Emerald Rapids: 210002b3 to 210002c0
- Fixes errata RPL070/ADL083/LNL047/ARL054/SPR154/EMR147:
'REP SCASB, REP CMPSB may return incorrect results when racing
memory access with another core or thread' on Raptor Lake,
Alder Lake, Lunar Lake, Arrow Lake, Sapphire Rapids, Emerald Rapids.

Updated Packages

Release/Architecture	Filename	sha256	Superseded By Advisory	Channel Label
Oracle Linux 9 (aarch64)	microcode_ctl-20250812-1.20251111.1.0.1.el9_7.src.rpm	b77ca27a9fc0878b6e625a28c9172894814d3a86abd0e30f2816a6f1e6422c17	-	ol9_aarch64_baseos_latest
	microcode_ctl-20250812-1.20251111.1.0.1.el9_7.src.rpm	b77ca27a9fc0878b6e625a28c9172894814d3a86abd0e30f2816a6f1e6422c17	-	ol9_aarch64_u7_baseos_patch
Oracle Linux 9 (x86_64)	microcode_ctl-20250812-1.20251111.1.0.1.el9_7.src.rpm	b77ca27a9fc0878b6e625a28c9172894814d3a86abd0e30f2816a6f1e6422c17	-	ol9_x86_64_baseos_latest
	microcode_ctl-20250812-1.20251111.1.0.1.el9_7.src.rpm	b77ca27a9fc0878b6e625a28c9172894814d3a86abd0e30f2816a6f1e6422c17	-	ol9_x86_64_u7_baseos_patch
	microcode_ctl-20250812-1.20251111.1.0.1.el9_7.noarch.rpm	40df481baf98b4b9e84e43857739c50e95b9d144db397f78459f006577dd9820	-	ol9_x86_64_baseos_latest
	microcode_ctl-20250812-1.20251111.1.0.1.el9_7.noarch.rpm	40df481baf98b4b9e84e43857739c50e95b9d144db397f78459f006577dd9820	-	ol9_x86_64_u7_baseos_patch

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