diff --git a/libc/arch-arm64/bionic/vfork.S b/libc/arch-arm64/bionic/vfork.S
index 6acd64b..6c01572 100644
--- a/libc/arch-arm64/bionic/vfork.S
+++ b/libc/arch-arm64/bionic/vfork.S
@@ -51,5 +51,26 @@
     cneg    x0, x0, hi
     b.hi    __set_errno_internal
 
+#if __has_feature(hwaddress_sanitizer)
+    cbz x0, .L_exit
+
+    // Clean up stack shadow in the parent process.
+    // https://github.com/google/sanitizers/issues/925
+    stp x0, x30, [sp, #-16]!
+    .cfi_adjust_cfa_offset 16
+    .cfi_rel_offset x0, 0
+    .cfi_rel_offset x30, 8
+
+    add x0, sp, #16
+    bl __hwasan_handle_vfork
+
+    ldp x0, x30, [sp], #16
+    .cfi_adjust_cfa_offset -16
+    .cfi_restore x0
+    .cfi_restore x30
+
+#endif
+
+.L_exit:
     ret
 END(vfork)