Moderate: kernel security update (Oracle Linux 9)

[5.14.0-611.20.1]
- 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]

[5.14.0-611.20.1]
- HID: multitouch: fix slab out-of-bounds access in mt_report_fixup() (CKI Backport Bot) [RHEL-124607] {CVE-2025-39806}
- sctp: avoid NULL dereference when chunk data buffer is missing (CKI Backport Bot) [RHEL-134001] {CVE-2025-40240}
- selftests/landlock: Add a new test for setuid() (Stepan Horacek) [RHEL-132712]
- selftests/landlock: Split signal_scoping_threads tests (Stepan Horacek) [RHEL-132712]
- landlock: Always allow signals between threads of the same process (Stepan Horacek) [RHEL-132712]
- landlock: Prepare to add second errata (Stepan Horacek) [RHEL-132712]
- landlock: Add the errata interface (Stepan Horacek) [RHEL-132712]
- selftests/landlock: Test signal scoping for threads (Stepan Horacek) [RHEL-132712]
- selftests/landlock: Test signal scoping (Stepan Horacek) [RHEL-132712]
- landlock: Add signal scoping (Stepan Horacek) [RHEL-132712]

[5.14.0-611.19.1]
- scsi: st: Skip buffer flush for information ioctls (John Meneghini) [RHEL-133543]
- scsi: st: Separate st-unique ioctl handling from SCSI common ioctl handling (John Meneghini) [RHEL-133543]
- audit: fix out-of-bounds read in audit_compare_dname_path() (Richard Guy Briggs) [RHEL-119176] {CVE-2025-39840}

[5.14.0-611.18.1]
- NFS: remove revoked delegation from server's delegation list (Benjamin Coddington) [RHEL-134237]
- redhat: use RELEASE_LOCALVERSION also for dist-get-tag (Jan Stancek)
- redhat: introduce RELEASE_LOCALVERSION variable (Jan Stancek)

[5.14.0-611.17.1]
- smb: client: handle lack of IPC in dfs_cache_refresh() (Paulo Alcantara) [RHEL-126165]
- smb: client: get rid of d_drop() in cifs_do_rename() (Paulo Alcantara) [RHEL-124917]
- mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory (CKI Backport Bot) [RHEL-119150] {CVE-2025-39883}