From 58a710d192167dfd9b5e8805c050588e9c0b0baa Mon Sep 17 00:00:00 2001 From: Andrea Fioraldi Date: Thu, 6 Aug 2020 20:25:57 +0200 Subject: check cmp map null in sancov trace switch --- llvm_mode/afl-llvm-rt.o.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'llvm_mode/afl-llvm-rt.o.c') diff --git a/llvm_mode/afl-llvm-rt.o.c b/llvm_mode/afl-llvm-rt.o.c index fcacc675..47a2881b 100644 --- a/llvm_mode/afl-llvm-rt.o.c +++ b/llvm_mode/afl-llvm-rt.o.c @@ -1056,6 +1056,8 @@ void __sanitizer_cov_trace_cmp8(uint64_t arg1, uint64_t arg2) void __sanitizer_cov_trace_switch(uint64_t val, uint64_t *cases) { + if (!__afl_cmp_map) return; + for (uint64_t i = 0; i < cases[0]; i++) { uintptr_t k = (uintptr_t)__builtin_return_address(0) + i; -- cgit 1.4.1