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-rw-r--r--src/common/crypto.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/common/crypto.c b/src/common/crypto.c
index dffa2c7807..c723c33dd0 100644
--- a/src/common/crypto.c
+++ b/src/common/crypto.c
@@ -321,7 +321,8 @@ crypto_new_pk_env(void)
void
crypto_free_pk_env(crypto_pk_env_t *env)
{
- tor_assert(env);
+ if (!env)
+ return;
if (--env->refs > 0)
return;