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-rw-r--r--src/common/crypto.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/common/crypto.c b/src/common/crypto.c
index d77d5e20dc..afaf93aed2 100644
--- a/src/common/crypto.c
+++ b/src/common/crypto.c
@@ -1979,6 +1979,8 @@ crypto_dh_t *
crypto_dh_dup(const crypto_dh_t *dh)
{
crypto_dh_t *dh_new = tor_malloc_zero(sizeof(crypto_dh_t));
+ tor_assert(dh);
+ tor_assert(dh->dh);
dh_new->dh = dh->dh;
DH_up_ref(dh->dh);
return dh_new;