Module: kamailio Branch: master Commit: c32a0be89cc92a0649277774d1e7aebf349b8b49 URL: https://github.com/kamailio/kamailio/commit/c32a0be89cc92a0649277774d1e7aeb… Author: Dennis Yurasov <dennis-y(a)yandex-team.ru> Committer: Victor Seva <linuxmaniac(a)torreviejawireless.org> Date: 2021-08-26T11:25:29+02:00 ndb_redis: fix SIGSEGV in redisc_check_auth - Added the check for NULL pointer. When TCP session to redis reset, redisCommand function can return NULL pointer. --- Modified: src/modules/ndb_redis/redis_client.c --- Diff: https://github.com/kamailio/kamailio/commit/c32a0be89cc92a0649277774d1e7aeb… Patch: https://github.com/kamailio/kamailio/commit/c32a0be89cc92a0649277774d1e7aeb… --- diff --git a/src/modules/ndb_redis/redis_client.c b/src/modules/ndb_redis/redis_client.c index befb69ab79..bb6adc20b1 100644 --- a/src/modules/ndb_redis/redis_client.c +++ b/src/modules/ndb_redis/redis_client.c @@ -1269,6 +1269,10 @@ int redisc_check_auth(redisc_server_t *rsrv, char *pass) int retval = 0; reply = redisCommand(rsrv->ctxRedis, "AUTH %s", pass); + if(!reply) { + LM_ERR("Redis authentication error\n"); + return -1; + } if (reply->type == REDIS_REPLY_ERROR) { LM_ERR("Redis authentication error\n"); retval = -1;