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-rw-r--r--erts/emulator/beam/beam_load.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 50498cb6cf..0184c567f1 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -4915,7 +4915,9 @@ freeze_code(LoaderState* stp)
line_items[i] = codev + stp->ci - 1;
line_tab->fname_ptr = (Eterm*) &line_items[i + 1];
- sys_memcpy(line_tab->fname_ptr, stp->fname, stp->num_fnames*sizeof(Eterm));
+ if (stp->num_fnames)
+ sys_memcpy(line_tab->fname_ptr, stp->fname,
+ stp->num_fnames*sizeof(Eterm));
line_tab->loc_size = stp->loc_size;
if (stp->loc_size == 2) {