Important: kernel security update (Oracle Linux 9)

[5.14.0-611.38.1]
- Disable UKI signing [Orabug: 36571828]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.5]
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34729535]
- Add Oracle Linux IMA certificates
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985764]

[5.14.0-611.38.1]
- mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats (CKI Backport Bot) [RHEL-143194] {CVE-2025-68800}

[5.14.0-611.37.1]
- printk: Use console_is_usable on console_unblank (CKI Backport Bot) [RHEL-148302]
- printk: Check CON_SUSPEND when unblanking a console (CKI Backport Bot) [RHEL-148302]
- printk: Avoid irq_work for printk_deferred() on suspend (CKI Backport Bot) [RHEL-148302]
- printk: Avoid scheduling irq_work on suspend (CKI Backport Bot) [RHEL-148302]
- printk: nbcon: Allow reacquire during panic (CKI Backport Bot) [RHEL-148302]
- printk: Allow printk_trigger_flush() to flush all types (CKI Backport Bot) [RHEL-148302]
- printk: nbcon: Use raw_cpu_ptr() instead of open coding (CKI Backport Bot) [RHEL-148302]
- backport 'printk: Add helper for flush type logic' and associated changes (CKI Backport Bot) [RHEL-148302]
- printk: Remove redundant deferred check in vprintk() (CKI Backport Bot) [RHEL-148302]
- printk: Introduce force_legacy_kthread() macro (CKI Backport Bot) [RHEL-148302]
- printk: Add is_printk_legacy_deferred() (CKI Backport Bot) [RHEL-148302]
- io_uring/sqpoll: don't put task_struct on tctx setup failure (Jeff Moyer) [RHEL-137988]
- io_uring: consistently use rcu semantics with sqpoll thread (Jeff Moyer) [RHEL-137988]
- io_uring: fix use-after-free of sq->thread in __io_uring_show_fdinfo() (Jeff Moyer) [RHEL-137988] {CVE-2025-38106}
- io_uring/sqpoll: fix sqpoll error handling races (Jeff Moyer) [RHEL-137988]
- io_uring/sqpoll: annotate debug task == current with data_race() (Jeff Moyer) [RHEL-137988]
- macvlan: fix possible UAF in macvlan_forward_source() (CKI Backport Bot) [RHEL-144125] {CVE-2026-23001}
- net/smc: Fix lookup of netdev by using ib_device_get_netdev() (CKI Backport Bot) [RHEL-114786]