Module: kamailio Branch: master Commit: b50159d60dec4ffc671e424cc849e4cde4e9bfb5 URL: https://github.com/kamailio/kamailio/commit/b50159d60dec4ffc671e424cc849e4c… Author: Jose Luis Verdeguer <pepeluxx(a)gmail.com> Committer: Jose Luis Verdeguer <pepeluxx(a)gmail.com> Date: 2019-03-12T11:13:41+01:00 secfilter: avoid dereferences null --- Modified: src/modules/secfilter/secfilter.c --- Diff: https://github.com/kamailio/kamailio/commit/b50159d60dec4ffc671e424cc849e4c… Patch: https://github.com/kamailio/kamailio/commit/b50159d60dec4ffc671e424cc849e4c… --- diff --git a/src/modules/secfilter/secfilter.c b/src/modules/secfilter/secfilter.c index 4816c4ad9d..d229031f30 100644 --- a/src/modules/secfilter/secfilter.c +++ b/src/modules/secfilter/secfilter.c @@ -424,6 +424,10 @@ static int check_user(struct sip_msg *msg, int type) if(res != 0) { return res; } + + if (user.s == NULL || domain.s == NULL) { + return -1; + } nlen = name.len; ulen = user.len; @@ -434,9 +438,11 @@ static int check_user(struct sip_msg *msg, int type) while(list) { if(name.len > list->s.len) name.len = list->s.len; - res = cmpi_str(&list->s, &name); - if(res == 0) { - return 4; + if (name.s != NULL) { + res = cmpi_str(&list->s, &name); + if(res == 0) { + return 4; + } } if(user.len > list->s.len) user.len = list->s.len; @@ -453,9 +459,11 @@ static int check_user(struct sip_msg *msg, int type) while(list) { if(name.len > list->s.len) name.len = list->s.len; - res = cmpi_str(&list->s, &name); - if(res == 0) { - return -4; + if (name.s != NULL) { + res = cmpi_str(&list->s, &name); + if(res == 0) { + return -4; + } } if(user.len > list->s.len) user.len = list->s.len;