diff --git a/changelog/updates/2025-10-30-linux-6.12.56-update.md b/changelog/updates/2025-10-30-linux-6.12.56-update.md
new file mode 100644
index 00000000000..84ce32d59c9
--- /dev/null
+++ b/changelog/updates/2025-10-30-linux-6.12.56-update.md
@@ -0,0 +1 @@
+- Linux ([6.12.56](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.12.56) (includes [6.12.55](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.12.55)))
diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.54.ebuild b/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.56.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.54.ebuild
rename to sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.56.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.54.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.56.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.54.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.56.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.54.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.56.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.54.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.56.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/Manifest b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/Manifest
index 05a8d04998b..11fcbd1d229 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/Manifest
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/Manifest
@@ -1,2 +1,2 @@
 DIST linux-6.12.tar.xz 147906904 BLAKE2B b2ec2fc69218cacabbbe49f78384a5d259ca581b717617c12b000b16f4a4c59ee348ea886b37147f5f70fb9a7a01c1e2c8f19021078f6b23f5bc62d1c48d5e5e SHA512 a37b1823df7b4f72542f689b65882634740ba0401a42fdcf6601d9efd2e132e5a7650e70450ba76f6cd1f13ca31180f2ccee9d54fe4df89bc0000ade4380a548
-DIST patch-6.12.54.xz 3096864 BLAKE2B f5bff8166a5a45535092614ef9ed1d9e39064fd2762f0d71e852a87437326892c9d25a095ad51eb3b7fdfe266ba5f16d271303b98c4c1c6ed1716cfa09b669bb SHA512 744143218b5258a67f4b00126c72d7630b6e563dd0cc0a9cf685bc38cb48dc217d717053117e72a52fba061b2171a99ef64d992288f75500f069c617d1663b5b
+DIST patch-6.12.56.xz 3156620 BLAKE2B dec99addb9b6a695bfb77f38dda3d1fb6cfbf2854c41431dbe774992c7de20128238073a40d83cd6532bdc138c4b195f7e896dc034d478733951b90ce2398c8f SHA512 d52ed60eb1a7f4072017f6fda5a70b8566dd9db2d79ad6bdf0c18a404de08b218f1ff30c227a20caae0ce0ef82210059e8f15f6267d93be50f3f8e1652a9fb1c
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.54.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.56.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.54.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.56.ebuild