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-rw-r--r--erts/emulator/beam/erl_alloc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 36c46fd7aa..1d4b33c598 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -4072,6 +4072,9 @@ debug_free(ErtsAlcType_t type, void *extra, void *ptr)
ASSERT(ERTS_ALC_N_MIN <= n && n <= ERTS_ALC_N_MAX);
+ if (!ptr)
+ return;
+
dptr = check_memory_fence(ptr, &size, n, ERTS_ALC_O_FREE);
#ifdef ERTS_ALC_A_EXEC