util/romcc: avoid dereferencing NULL pointer
argv is only filled for macro->argc > 0.
Change-Id: I5ff21098384afc823efa14be3d5565507fb2b3b2
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Found-by: Coverity Scan #1287089
Reviewed-on: https://review.coreboot.org/18016
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/util/romcc/romcc.c b/util/romcc/romcc.c
index 2fa400a..62fe758 100644
--- a/util/romcc/romcc.c
+++ b/util/romcc/romcc.c
@@ -4580,6 +4580,9 @@
flen = fmacro.pos - fstart;
switch(tk->tok) {
case TOK_IDENT:
+ if (macro->argc < 0) {
+ break;
+ }
for(i = 0; i < macro->argc; i++) {
if (argv[i].ident == tk->ident) {
break;