ELBA-2026-8101

ELBA-2026-8101 - microcode_ctl bug fix and enhancement update

Type:	BUG
Impact:	NA
Release Date:	2026-04-14

Description

[4:20260227-1.0.1]
- enable use with ueknext and UEK8 kernels
- don't bother calling dracut if virtualized [Orabug: 35710077]
- ensure UEK also rebuilds initramfs [Orabug: 34280058]
- add support for UEK7 kernels
- 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

[4:20260227-1]
- Update Intel CPU microcode to microcode-20260227 release (RHEL-159424)
- Microcode files (/platform_mask shown) with revision updates (in hex):
06-ae-01/97: Granite Rapids-D: 10002f3 to 1000303
Resolves: RHEL-159424

[4:20260210-1]
- Update Intel CPU microcode to microcode-20260210 release (RHEL-151645)
- Microcode files (/platform_mask shown) with revision updates (in hex):
06-6a-06/87: Ice Lake-X: d000410 to d000421
06-6c-01/10: Ice Lake-D: 10002e0 to 10002f1
06-7e-05/80: Ice Lake-L: 00ca to 00cc
06-8c-01/80: Tiger Lake: 00bc to 00be
06-8c-02/c2: Tiger Lake: 003c to 003e
06-8d-01/c2: Tiger Lake-H: 0056 to 0058
06-8f-07/87: Sapphire Rapids: 2b000650 to 2b000661
06-8f-08/10: Sapphire Rapids with HBM: 2c000410 to 2c000421
06-8f-08/87: Sapphire Rapids: 2b000650 to 2b000661
06-97-02/07: Alder Lake: 003d to 003e
06-97-05/07: Alder Lake: 003d to 003e
06-9a-03/80: Alder Lake-L: 043a to 043b
06-9a-04/80: Alder Lake-L: 043a to 043b
06-9a-04/40: Arizona Beach (Atom C11xx): 000b to 000c
06-9a-04/80: Alder Lake-L: 043a to 043b
06-a7-01/02: Rocket Lake: 0064 to 0065
06-aa-04/e6: Meteor Lake-L: 0025 to 0028
06-ad-01/20: Granite Rapids-X: a000124 to a000133
06-ad-01/95: Granite Rapids-X: 10003f0 to 1000405
06-ae-01/97: Granite Rapids-D: 1000273 to 10002f3
06-b5-00/80: Arrow Lake-U: 000a to 000d
06-b7-01/32: Raptor Lake: 0132 to 0133
06-ba-02/e0: Raptor Lake-P: 6133 to 6134
06-ba-03/e0: Raptor Lake-P: 6133 to 6134
06-be-00/19: Gracemont (Alder Lake-N): 001e to 0021
06-bf-02/07: Raptor Lake-S: 003d to 003e
06-bf-05/07: Raptor Lake-S: 003d to 003e
06-c5-02/82: Arrow Lake-H: 011a to 011b
06-c6-02/82: Arrow Lake: 011a to 011b
06-cf-02/87: Emerald Rapids: 210002c0 to 210002d3
Resolves: RHEL-151645

Updated Packages

Release/Architecture	Filename	sha256	Superseded By Advisory	Channel Label
Oracle Linux 8 (aarch64)	microcode_ctl-20260227-1.0.1.el8_10.src.rpm	4b8e24b962987f5e5047abfdeb5236542440b21ee8deee9374fa5354f4f113a6	-	ol8_aarch64_baseos_latest
	microcode_ctl-20260227-1.0.1.el8_10.src.rpm	4b8e24b962987f5e5047abfdeb5236542440b21ee8deee9374fa5354f4f113a6	-	ol8_aarch64_u10_baseos_patch
Oracle Linux 8 (x86_64)	microcode_ctl-20260227-1.0.1.el8_10.src.rpm	4b8e24b962987f5e5047abfdeb5236542440b21ee8deee9374fa5354f4f113a6	-	ol8_x86_64_baseos_latest
	microcode_ctl-20260227-1.0.1.el8_10.src.rpm	4b8e24b962987f5e5047abfdeb5236542440b21ee8deee9374fa5354f4f113a6	-	ol8_x86_64_u10_baseos_patch
	microcode_ctl-20260227-1.0.1.el8_10.x86_64.rpm	805a5a2340ed8b46956ed48d5285873b6202f20ccf0aaff5ac7ae9de27b39184	-	ol8_x86_64_baseos_latest
	microcode_ctl-20260227-1.0.1.el8_10.x86_64.rpm	805a5a2340ed8b46956ed48d5285873b6202f20ccf0aaff5ac7ae9de27b39184	-	ol8_x86_64_u10_baseos_patch

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