libtraceevent: Prevent a memory leak in process_fields()
One of the error paths after the field was allocated goes to the wrong
label. Go to out_free_field if the allocation of arg fails.
Fixes a RESOURCE_LEAK error (CWE-772)
Link: https://lore.kernel.org/linux-trace-devel/20240607160542.46152-3-jmarchan@redhat.com
Fixes: b17b75e511722 ("tools lib traceevent: Handle alloc_arg failure")
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
diff --git a/src/event-parse.c b/src/event-parse.c
index b625621..9f0522c 100644
--- a/src/event-parse.c
+++ b/src/event-parse.c
@@ -2963,7 +2963,7 @@
free_arg(arg);
arg = alloc_arg();
if (!arg)
- goto out_free;
+ goto out_free_field;
free_token(token);
type = process_arg(event, arg, &token);
