Fix heap overflow in macho parser ##bin

Sample: clusterfuzz-testcase-minimized-ia_fuzz-5651817880354816.dms
radareorg · Apr 27, 2019 · 67d531d · 67d531d
1 parent 5fa6d8c
commit 67d531d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libr/bin/format/mach0/mach0.c b/libr/bin/format/mach0/mach0.c
@@ -2070,7 +2070,7 @@ RSkipList *MACH0_(get_relocs)(struct MACH0_(obj_t) *bin) {
 		if (bin->dyld_info->bind_off+bind_size+lazy_size > bin->size) {
 			return NULL;
 		}
-		int amount = bind_size + lazy_size + weak_size;
+		ut64 amount = bind_size + lazy_size + weak_size;
 		if (amount < 0) {
 			return NULL;
 		}