From 5ce984913f54849b841675955f971b73b8d76eb5 Mon Sep 17 00:00:00 2001 From: Daniel-Constantin Mierla Date: Wed, 17 Apr 2019 15:40:47 +0200 Subject: [PATCH] app_mono: safety check for anchor lump --- src/modules/app_mono/app_mono_api.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/modules/app_mono/app_mono_api.c b/src/modules/app_mono/app_mono_api.c index efd17e82266..2343b1d922d 100644 --- a/src/modules/app_mono/app_mono_api.c +++ b/src/modules/app_mono/app_mono_api.c @@ -778,7 +778,7 @@ static int sr_mono_hdr_append (MonoString *hv) hdr[txt.len] = '\0'; anchor = anchor_lump(env_M->msg, hf->name.s + hf->len - env_M->msg->buf, 0, 0); - if(insert_new_lump_before(anchor, hdr, txt.len, 0) == 0) + if((anchor==NULL) || (insert_new_lump_before(anchor, hdr, txt.len, 0) == 0)) { LM_ERR("can't insert lump\n"); pkg_free(hdr); @@ -873,7 +873,7 @@ static int sr_mono_hdr_insert (MonoString *hv) hdr[txt.len] = '\0'; anchor = anchor_lump(env_M->msg, hf->name.s + hf->len - env_M->msg->buf, 0, 0); - if(insert_new_lump_before(anchor, hdr, txt.len, 0) == 0) + if((anchor==NULL) || (insert_new_lump_before(anchor, hdr, txt.len, 0) == 0)) { LM_ERR("can't insert lump\n"); pkg_free(hdr);