diff --git a/changelog/updates/2026-07-30-linux-6.12.99-update.md b/changelog/updates/2026-07-30-linux-6.12.99-update.md
new file mode 100644
index 00000000000..81f0aff57ac
--- /dev/null
+++ b/changelog/updates/2026-07-30-linux-6.12.99-update.md
@@ -0,0 +1 @@
+- Linux ([6.12.99](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.12.99) (includes [6.12.98](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.12.98), [6.12.97](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.12.97)))
diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.96.ebuild b/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.99.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.96.ebuild
rename to sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.99.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.96.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.99.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.96.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.99.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.96.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.99.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.96.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-6.12.99.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 21f55d48464..10f2cfb10ec 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-6.12.96.xz 4953340 BLAKE2B 455d0eb19086f1feb82905ea233d9347595e1e92b1e943913e8f3d534bd2f7242e7ac1fb7781f239090eb606fbf5e308d8a4a0ce8686b430a58a3e33263afc4c SHA512 c112d977ca29d5967fbc6d678491f159ac15b7e3a5b03b7237fc5c4eecb1ef1a9a0e3c20bdeed55a680376990b1c52aadc9e0ad2f7a4f3406a0c1bf66b5771b4
+DIST patch-6.12.99.xz 5243940 BLAKE2B 146c6990222b69a092496ec07f9dcc9dbd7a96c68fb05b34651ec510dc02607de19e9f110cbaa9d45f06890b7bf897c202540202120ed5ce220b35ff1f2b3577 SHA512 a5dde5147b5d3195aafff23488fb138b4e076d329aea07c54e5961d04137f1e4594ed442ad189fae468f64a5d2a12ba309a8f27438b9ef9255799f35762a6f1f
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.96.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.99.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.96.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-6.12.99.ebuild