Important: kernel security, bug fix, and enhancement update (Oracle Linux 9)

[5.14.0-687.20.1]
- 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]

[5.14.0-687.20.1]
- crypto: krb5 - filter out async aead implementations at alloc (CKI Backport Bot) [RHEL-182540]
- crypto: krb5enc - fix async decrypt skipping hash verification (CKI Backport Bot) [RHEL-182540]
- crypto: krb5enc - fix sleepable flag handling in encrypt dispatch (CKI Backport Bot) [RHEL-182540]
- crypto: testmgr - allow authenc(hmac(sha{256,384}),cts(cbc(aes))) in FIPS mode (CKI Backport Bot) [RHEL-182540]
- tcp: fix potential race in tcp_v6_syn_recv_sock() (Paolo Abeni) [RHEL-174243] {CVE-2026-43198}
- crypto: tegra - Return ENOMEM when input buffer allocation fails for ccm (Vladislav Dronov) [RHEL-182760]
- crypto: tegra - Fix dma_free_coherent size error (Vladislav Dronov) [RHEL-182760]
- crypto: tegra - Don't touch bo refcount in host1x bo pin/unpin (Vladislav Dronov) [RHEL-182760]
- crypto: tegra - Add missing CRYPTO_ALG_ASYNC (Vladislav Dronov) [RHEL-182760] {CVE-2026-31739}
- crypto: tegra - Use int type to store negative error codes (Vladislav Dronov) [RHEL-182760]
- crypto: tegra - Remove the use of dev_err_probe() (Vladislav Dronov) [RHEL-182760]
- crypto: tegra - use API helpers to setup fallback request (Vladislav Dronov) [RHEL-182760]
- scsi: qla2xxx: Add support to report MPI FW state (Ewan D. Milne) [RHEL-181886]
- net: atm: fix crash due to unvalidated vcc pointer in sigd_send() (CKI Backport Bot) [RHEL-167051] {CVE-2026-31411}