[El-errata] ELBA-2025-19555 Oracle Linux 8 microcode_ctl bug fix and enhancement update

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Fri Nov 7 10:16:38 UTC 2025


Oracle Linux Bug Fix Advisory ELBA-2025-19555

http://linux.oracle.com/errata/ELBA-2025-19555.html

The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network:

x86_64:
microcode_ctl-20250812-1.0.1.el8_10.x86_64.rpm



SRPMS:
http://oss.oracle.com/ol8/SRPMS-updates/microcode_ctl-20250812-1.0.1.el8_10.src.rpm



Description of changes:

[4:20250812-1.0.1]
- 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

[4:20250812-1]
- Update Intel CPU microcode to microcode-20250812 release
  - Update of 06-6a-06/0x87 (ICX-SP D0) microcode from revision 0xd000404
    up to 0xd000410;
  - Update of 06-6c-01/0x10 (ICL-D B0) microcode from revision 0x10002d0
    up to 0x10002e0;
  - Update of 06-8f-04/0x87 (SPR-SP E0/S1) microcode (in
    intel-ucode/06-8f-07) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-05/0x87 (SPR-SP E2) microcode (in
    intel-ucode/06-8f-07) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-06/0x87 (SPR-SP E3) microcode (in
    intel-ucode/06-8f-07) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-07/0x87 (SPR-SP E4/S2) microcode from revision
    0x2b000639 up to 0x2b000643;
  - Update of 06-8f-08/0x87 (SPR-SP E5/S3) microcode (in
    intel-ucode/06-8f-07) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-04/0x10 microcode (in intel-ucode/06-8f-08) from
    revision 0x2c0003f7 up to 0x2c000401;
  - Update of 06-8f-04/0x87 (SPR-SP E0/S1) microcode (in
    intel-ucode/06-8f-08) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-05/0x10 (SPR-HBM B1) microcode (in
    intel-ucode/06-8f-08) from revision 0x2c0003f7 up to 0x2c000401;
  - Update of 06-8f-05/0x87 (SPR-SP E2) microcode (in
    intel-ucode/06-8f-08) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-06/0x10 microcode (in intel-ucode/06-8f-08) from
    revision 0x2c0003f7 up to 0x2c000401;
  - Update of 06-8f-06/0x87 (SPR-SP E3) microcode (in
    intel-ucode/06-8f-08) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-07/0x87 (SPR-SP E4/S2) microcode (in
    intel-ucode/06-8f-08) from revision 0x2b000639 up to 0x2b000643;
  - Update of 06-8f-08/0x10 (SPR-HBM B3) microcode from revision
    0x2c0003f7 up to 0x2c000401;
  - Update of 06-8f-08/0x87 (SPR-SP E5/S3) microcode from revision
    0x2b000639 up to 0x2b000643;
  - Update of 06-aa-04/0xe6 (MTL-H/U C0) microcode from revision 0x24
    up to 0x25;
  - Update of 06-ad-01/0x20 (GNR-AP/SP H0) microcode from revision
    0xa0000d1 up to 0xa000100;
  - Update of 06-ad-01/0x95 (GNR-AP/SP B0) microcode from revision
    0x10003a2 up to 0x10003d0;
  - Update of 06-af-03/0x01 (SRF-SP C0) microcode from revision 0x3000341
    up to 0x3000362;
  - Update of 06-ba-02/0xe0 (RPL-H 6+8/P 6+8 J0) microcode from revision
    0x4128 up to 0x4129;
  - Update of 06-ba-03/0xe0 (RPL-U 2+8 Q0) microcode (in
    intel-ucode/06-ba-02) from revision 0x4128 up to 0x4129;
  - Update of 06-ba-08/0xe0 microcode (in intel-ucode/06-ba-02) from
    revision 0x4128 up to 0x4129;
  - Update of 06-ba-02/0xe0 (RPL-H 6+8/P 6+8 J0) microcode (in
    intel-ucode/06-ba-03) from revision 0x4128 up to 0x4129;
  - Update of 06-ba-03/0xe0 (RPL-U 2+8 Q0) microcode from revision 0x4128
    up to 0x4129;
  - Update of 06-ba-08/0xe0 microcode (in intel-ucode/06-ba-03) from
    revision 0x4128 up to 0x4129;
  - Update of 06-bd-01/0x80 (LNL B0) microcode from revision 0x11f up
    to 0x123;
  - Update of 06-c5-02/0x82 (ARL-H A1) microcode from revision 0x118 up
    to 0x119;
  - Update of 06-c6-02/0x82 (ARL-HX 8P/S B0) microcode (in
    intel-ucode/06-c5-02) from revision 0x118 up to 0x119;
  - Update of 06-c6-04/0x82 microcode (in intel-ucode/06-c5-02) from
    revision 0x118 up to 0x119;
  - Update of 06-ca-02/0x82 microcode (in intel-ucode/06-c5-02) from
    revision 0x118 up to 0x119;
  - Update of 06-c5-02/0x82 (ARL-H A1) microcode (in intel-ucode/06-c6-02)
    from revision 0x118 up to 0x119;
  - Update of 06-c6-02/0x82 (ARL-HX 8P/S B0) microcode from revision
    0x118 up to 0x119;
  - Update of 06-c6-04/0x82 microcode (in intel-ucode/06-c6-02) from
    revision 0x118 up to 0x119;
  - Update of 06-ca-02/0x82 microcode (in intel-ucode/06-c6-02) from
    revision 0x118 up to 0x119;
  - Update of 06-cf-01/0x87 (EMR-SP A0) microcode (in
    intel-ucode/06-cf-02) from revision 0x210002a9 up to 0x210002b3;
  - Update of 06-cf-02/0x87 (EMR-SP A1) microcode from revision 0x210002a9
    up to 0x210002b3.




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