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-rw-r--r--src/lib/process/process.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib/process/process.c b/src/lib/process/process.c
index 2194a603ff..12c1f9a772 100644
--- a/src/lib/process/process.c
+++ b/src/lib/process/process.c
@@ -1,6 +1,6 @@
/* Copyright (c) 2003, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
- * Copyright (c) 2007-2019, The Tor Project, Inc. */
+ * Copyright (c) 2007-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
@@ -550,6 +550,7 @@ process_vprintf(process_t *process,
char *data;
size = tor_vasprintf(&data, format, args);
+ tor_assert(data != NULL);
process_write(process, (uint8_t *)data, size);
tor_free(data);
}