--- a/libpurple/plugins/ssl/ssl-nss.c Mon Dec 16 20:20:20 2019 -0600 +++ b/libpurple/plugins/ssl/ssl-nss.c Sat Apr 04 01:36:20 2020 +0200 @@ -529,6 +529,9 @@ PRInt32 ret; PurpleSslNssData *nss_data = PURPLE_SSL_NSS_DATA(gsc); + if (!nss_data) + return 0; + ret = PR_Read(nss_data->in, data, len); if (ret == -1)