encode_msgpack: fix NULL dereference

Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62368 Signed-off-by: David Korczynski <david@adalogics.com>
fluent · Sep 22, 2023 · 2a006b0 · 2a006b0
1 parent b0ac0de
commit 2a006b0
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/ctr_encode_msgpack.c b/src/ctr_encode_msgpack.c
@@ -418,7 +418,9 @@ static void pack_scope_spans(mpack_writer_t *writer, struct cfl_list *scope_span
 
         /* scope */
         mpack_write_cstr(writer, "scope");
-        pack_instrumentation_scope(writer, scope_span->instrumentation_scope);
+        if (scope_span->instrumentation_scope) {
+            pack_instrumentation_scope(writer, scope_span->instrumentation_scope);
+        }
 
         /* spans */
         mpack_write_cstr(writer, "spans");