--- VirtualBox-6.1.18/src/VBox/HostDrivers/Support/SUPDrvTracer.cpp.orig	2021-04-15 15:20:45.932726596 +0200
+++ VirtualBox-6.1.18/src/VBox/HostDrivers/Support/SUPDrvTracer.cpp	2021-04-15 15:22:18.820418821 +0200
@@ -1479,6 +1479,10 @@
 # if   defined(RT_ARCH_AMD64)
 __asm__(" \
             movq    g_pfnSupdrvProbeFireKernel(%rip), %rax                  \n\
+999:\n\
+            .pushsection .discard.retpoline_safe\n\
+            .quad 999b\n\
+            .popsection\n\
             jmp     *%rax \n\
 ");
 # elif defined(RT_ARCH_X86)