Index: modcargo-crates/v8-0.99.0/v8/gni/v8.gni
--- modcargo-crates/v8-0.99.0/v8/gni/v8.gni.orig
+++ modcargo-crates/v8-0.99.0/v8/gni/v8.gni
@@ -171,7 +171,7 @@ declare_args() {
   v8_enable_cet_shadow_stack = false
 
   # Emit CET IBT landing pad instructions in JIT generated code (experimental).
-  v8_enable_cet_ibt = false
+  v8_enable_cet_ibt = true
 }
 
 if (v8_use_external_startup_data == "") {
