[El-errata] ELSA-2026-50005 Important: Oracle Linux 8 Unbreakable Enterprise kernel security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-50005

http://linux.oracle.com/errata/ELSA-2026-50005.html

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

x86_64:
kernel-uek-5.4.17-2136.351.3.1.el8uek.x86_64.rpm
kernel-uek-container-5.4.17-2136.351.3.1.el8uek.x86_64.rpm
kernel-uek-container-debug-5.4.17-2136.351.3.1.el8uek.x86_64.rpm
kernel-uek-debug-5.4.17-2136.351.3.1.el8uek.x86_64.rpm
kernel-uek-debug-devel-5.4.17-2136.351.3.1.el8uek.x86_64.rpm
kernel-uek-devel-5.4.17-2136.351.3.1.el8uek.x86_64.rpm
kernel-uek-doc-5.4.17-2136.351.3.1.el8uek.noarch.rpm


SRPMS:
http://oss.oracle.com/ol8/SRPMS-updates/kernel-uek-5.4.17-2136.351.3.1.el8uek.src.rpm

Related CVEs:

CVE-2025-40271




Description of changes:

[5.4.17-2136.351.3.1]
- fs/proc: fix uaf in proc_readdir_de() (Wei Yang)  [Orabug: 38787139]  {CVE-2025-40271}

[5.4.17-2136.351.3]
- Reapply "cpuidle: menu: Avoid discarding useful information" (Harshvardhan Jha)  [Orabug: 38715366]
- fbcon: fix integer overflow in font allocation (Samasth Norway Ananda)  [Orabug: 38702507]
- uek-rpm: Replace check-kabi tool with kabi (Yifei Liu)  [Orabug: 38673382]
- uek-rpm: Introduce check function for uek-rpm/tools/kabi (Yifei Liu)  [Orabug: 38673382]

[5.4.17-2136.351.2]
- uek-rpm: kabi: Remove the kabi protection for debug kernels (Yifei Liu) [Orabug: 38609548]
- rds: Add smp_rmb before reading c_destroy_in_prog (Håkon Bugge) [Orabug: 38352486]
- uio_hv_generic: Set event for all channels on the device (Long Li)
- ata: libata-scsi: Fix system suspend for a security locked drive (Niklas Cassel)
- HID: quirks: work around VID/PID conflict for 0x4c4a/0x4155 (Zhang Heng)

[5.4.17-2136.351.1]
- scsi: megaraid_sas: Fix concurrent access to ISR between IRQ polling and real interrupt (Sumit Saxena) [Orabug: 38630482]