diff --git a/.gitignore b/.gitignore
index f1c3f00..fbc33f3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,12 @@
 SOURCES/kernel-abi-stablelists-4.18.0-477.tar.bz2
 SOURCES/kernel-kabi-dw-4.18.0-477.tar.bz2
-SOURCES/linux-4.18.0-477.13.1.el8_8.tar.xz
+SOURCES/linux-4.18.0-477.15.1.el8_8.tar.xz
+SOURCES/redhatsecureboot301.cer
+SOURCES/redhatsecureboot501.cer
+SOURCES/redhatsecurebootca3.cer
+SOURCES/redhatsecurebootca5.cer
+SOURCES/redhatsecurebootca7.cer
 SOURCES/rheldup3.x509
 SOURCES/rhelkpatch1.x509
+SOURCES/secureboot_ppc.cer
+SOURCES/secureboot_s390.cer
diff --git a/.kernel.metadata b/.kernel.metadata
index 801822e..54583ce 100644
--- a/.kernel.metadata
+++ b/.kernel.metadata
@@ -1,5 +1,12 @@
-e725ef0926373499de3a23fe92c993f5d9d7f021 SOURCES/kernel-abi-stablelists-4.18.0-477.tar.bz2
-e5db84dd1b699a0ec6795e645cb9ea1d62acc739 SOURCES/kernel-kabi-dw-4.18.0-477.tar.bz2
-03744e5ffb9fb64236ce0a2c6d425bb22c4f43af SOURCES/linux-4.18.0-477.13.1.el8_8.tar.xz
+3048a935b3426a1ce6948eac06c0f7824a279114 SOURCES/kernel-abi-stablelists-4.18.0-477.tar.bz2
+a12f13780562a7e5253e37258e27d65d6f844e95 SOURCES/kernel-kabi-dw-4.18.0-477.tar.bz2
+ace0b04965500ae04a76458f2a5146d3b13f113e SOURCES/linux-4.18.0-477.15.1.el8_8.tar.xz
+cebbeeee9c3eb829017c51005714ec98d83653ae SOURCES/redhatsecureboot301.cer
+ba0b760e594ff668ee72ae348adf3e49b97f75fb SOURCES/redhatsecureboot501.cer
+cf9230e69000076727e5b784ec871d22716dc5da SOURCES/redhatsecurebootca3.cer
+e6f506462069aa17d2e8610503635c20f3a995c3 SOURCES/redhatsecurebootca5.cer
+905d91a282727c7f5ad433a49ac42a0772311c6a SOURCES/redhatsecurebootca7.cer
 95b9b811c7b0a6c98b2eafc4e7d6d24f2cb63289 SOURCES/rheldup3.x509
 d90885108d225a234a5a9d054fc80893a5bd54d0 SOURCES/rhelkpatch1.x509
+e89890ca0ded2f9058651cc5fa838b78db2e6cc2 SOURCES/secureboot_ppc.cer
+13e5cd3f856b472fde80a4deb75f4c18dfb5b255 SOURCES/secureboot_s390.cer
diff --git a/SOURCES/redhatsecureboot301.cer b/SOURCES/redhatsecureboot301.cer
deleted file mode 100644
index 20e6604..0000000
Binary files a/SOURCES/redhatsecureboot301.cer and /dev/null differ
diff --git a/SOURCES/redhatsecureboot501.cer b/SOURCES/redhatsecureboot501.cer
deleted file mode 100644
index dfa7afb..0000000
Binary files a/SOURCES/redhatsecureboot501.cer and /dev/null differ
diff --git a/SOURCES/redhatsecurebootca3.cer b/SOURCES/redhatsecurebootca3.cer
deleted file mode 100644
index b235400..0000000
Binary files a/SOURCES/redhatsecurebootca3.cer and /dev/null differ
diff --git a/SOURCES/redhatsecurebootca5.cer b/SOURCES/redhatsecurebootca5.cer
deleted file mode 100644
index dfb0284..0000000
Binary files a/SOURCES/redhatsecurebootca5.cer and /dev/null differ
diff --git a/SOURCES/redhatsecurebootca7.cer b/SOURCES/redhatsecurebootca7.cer
deleted file mode 100644
index 0e6e79b..0000000
Binary files a/SOURCES/redhatsecurebootca7.cer and /dev/null differ
diff --git a/SOURCES/secureboot_ppc.cer b/SOURCES/secureboot_ppc.cer
deleted file mode 100644
index 25e3743..0000000
Binary files a/SOURCES/secureboot_ppc.cer and /dev/null differ
diff --git a/SOURCES/secureboot_s390.cer b/SOURCES/secureboot_s390.cer
deleted file mode 100644
index 137d385..0000000
Binary files a/SOURCES/secureboot_s390.cer and /dev/null differ
diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
index 3dfd11a..d40428d 100644
--- a/SPECS/kernel.spec
+++ b/SPECS/kernel.spec
@@ -38,10 +38,10 @@
 # define buildid .local
 
 %define rpmversion 4.18.0
-%define pkgrelease 477.13.1.el8_8
+%define pkgrelease 477.15.1.el8_8
 
 # allow pkg_release to have configurable %%{?dist} tag
-%define specrelease 477.13.1%{?dist}
+%define specrelease 477.15.1%{?dist}
 
 %define pkg_release %{specrelease}%{?buildid}
 
@@ -2699,6 +2699,37 @@ fi
 #
 #
 %changelog
+* Fri Jun 02 2023 Lucas Zampieri <lzampier@redhat.com> [4.18.0-477.15.1.el8_8]
+- ice: Remove LAG+SRIOV mutual exclusion (Michal Schmidt) [2203214 2120585]
+- platform/x86: ISST: PUNIT device mapping with Sub-NUMA clustering (Prarit Bhargava) [2185604 2139963]
+- module: Don't wait for GOING modules (Mark Langsdorf) [2186305 1964563]
+- target: iscsi: use GFP_NOIO with loopback connections (Maurizio Lombardi) [2182092 2156546]
+
+* Thu May 25 2023 Lucas Zampieri <lzampier@redhat.com> [4.18.0-477.14.1.el8_8]
+- xfs: don't use BMBT btree split workers for IO completion (Carlos Maiolino) [2196390 2127493]
+- CI: Use zstream builder image (Michael Hofmann)
+- net: tls: fix possible race condition between do_tls_getsockopt_conf() and do_tls_setsockopt_conf() (Sabrina Dubroca) [2187959 2179819] {CVE-2023-28466}
+- sched/deadline: Add more reschedule cases to prio_changed_dl() (Valentin Schneider) [2188623 2120570]
+- workqueue: Fold rebind_worker() within rebind_workers() (Valentin Schneider) [2189595 2088578]
+- workqueue: Unbind kworkers before sending them to exit() (Valentin Schneider) [2189595 2088578]
+- workqueue: Don't hold any lock while rcuwait'ing for !POOL_MANAGER_ACTIVE (Valentin Schneider) [2189595 2088578]
+- workqueue: Convert the idle_timer to a timer + work_struct (Valentin Schneider) [2189595 2088578]
+- workqueue: Factorize unbind/rebind_workers() logic (Valentin Schneider) [2189595 2088578]
+- workqueue: Protects wq_unbound_cpumask with wq_pool_attach_mutex (Valentin Schneider) [2189595 2088578]
+- workqueue: make sysfs of unbound kworker cpumask more clever (Valentin Schneider) [2189595 2088578]
+- block: bio-integrity: Copy flags when bio_integrity_payload is cloned (Ming Lei) [2193236 2177565]
+- mlxsw: minimal: Fix deadlock in ports creation (Petr Oros) [2207564 2177956]
+- mlxsw: core: Fix use-after-free calling devl_unlock() in mlxsw_core_bus_device_unregister() (Petr Oros) [2207564 2177956]
+- net: devlink: convert reload command to take implicit devlink->lock (Petr Oros) [2207564 2177956]
+- mlxsw: convert driver to use unlocked devlink API during init/fini (Petr Oros) [2207564 2177956]
+- mlxsw: Narrow the critical section of devl_lock during ports creation/removal (Petr Oros) [2207564 2177956]
+- cpufreq: intel_pstate: hybrid: Use known scaling factor for P-cores (Prarit Bhargava) [2179332 2179183]
+- docs: Remove unnecessary unicode character (Patrick Talbert) [2208284 2207988]
+- hugetlbfs: don't delete error page from pagecache (Aristeu Rozanski) [2196665 2188334]
+- mm: shmem: don't truncate page if memory failure happens (Aristeu Rozanski) [2196665 2188334]
+- mm: hwpoison: handle non-anonymous THP correctly (Aristeu Rozanski) [2196665 2188334]
+- mm: hwpoison: refactor refcount check handling (Aristeu Rozanski) [2196665 2188334]
+
 * Thu May 18 2023 Lucas Zampieri <lzampier@redhat.com> [4.18.0-477.13.1.el8_8]
 - netfilter: nf_tables: deactivate anonymous set from preparation phase (Florian Westphal) [2196147 2196146] {CVE-2023-32233}