Module: kamailio Branch: master Commit: 1737e9443d6617350c5e6044aef07be565a345d0 URL: https://github.com/kamailio/kamailio/commit/1737e9443d6617350c5e6044aef07be… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2021-04-08T11:20:32+02:00 core: parse headers - check if anything was parsed --- Modified: src/core/parser/msg_parser.c --- Diff: https://github.com/kamailio/kamailio/commit/1737e9443d6617350c5e6044aef07be… Patch: https://github.com/kamailio/kamailio/commit/1737e9443d6617350c5e6044aef07be… --- diff --git a/src/core/parser/msg_parser.c b/src/core/parser/msg_parser.c index 4efb875d85..795c96a350 100644 --- a/src/core/parser/msg_parser.c +++ b/src/core/parser/msg_parser.c @@ -316,13 +316,14 @@ int parse_headers(struct sip_msg* const msg, const hdr_flags_t flags, const int if (unlikely(next)) { orig_flag = msg->parsed_flag; msg->parsed_flag &= ~flags; - }else + } else { orig_flag=0; + } #ifdef EXTRA_DEBUG DBG("flags=%llx\n", (unsigned long long)flags); #endif - while( tmp<end && (flags & msg->parsed_flag) != flags){ + while(tmp<end && (flags & msg->parsed_flag) != flags) { prefetch_loc_r(tmp+64, 1); hf=pkg_malloc(sizeof(struct hdr_field)); if (unlikely(hf==0)){ @@ -619,18 +620,25 @@ int parse_headers(struct sip_msg* const msg, const hdr_flags_t flags, const int #endif tmp=rest; } + skip: msg->unparsed=tmp; + if(msg->headers==NULL) { + /* nothing parsed - invalid input sip message */ + goto error1; + } /* restore original flags */ msg->parsed_flag |= orig_flag; return 0; error: - ser_error=E_BAD_REQ; if (hf) { clean_hdr_field(hf); pkg_free(hf); } + +error1: + ser_error=E_BAD_REQ; /* restore original flags */ msg->parsed_flag |= orig_flag; return -1;