<p>I can't reproduce this:</p>
<p>0(15468) DEBUG:  [core/udp_server.c:491]: udp_rcv_loop(): received on udp socket: (90/87/87) [[REGISTER sip:1.2.3.4:5060 SIP/2.0 0A Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683]]<br>
0(15468) DEBUG:  [core/parser/msg_parser.c:610]: parse_msg(): SIP Request:<br>
0(15468) DEBUG:  [core/parser/msg_parser.c:612]: parse_msg():  method:  <br>
0(15468) DEBUG:  [core/parser/msg_parser.c:614]: parse_msg():  uri:     sip:1.2.3.4:5060<br>
0(15468) DEBUG:  [core/parser/msg_parser.c:616]: parse_msg():  version: <SIP/2.0><br>
0(15468) ERROR:  [core/parser/parse_via.c:1324]: parse_via_param(): failure parsing via param<br>
0(15468) ERROR:  [core/parser/parse_via.c:2704]: parse_via(): parsing via on: <SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683><br>
0(15468) ERROR:  [core/parser/parse_via.c:2710]: parse_via(): via parse error<br>
0(15468) ERROR:  [core/parser/msg_parser.c:125]: get_hdr_field(): bad via<br>
0(15468) DEBUG:  [core/parser/msg_parser.c:279]: get_hdr_field(): error exit<br>
0(15468) ERROR:  [core/parser/msg_parser.c:337]: parse_headers(): bad header field [Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683]<br>
0(15468) ERROR:  [core/parser/msg_parser.c:681]: parse_msg(): ERROR: parse_msg: message=<REGISTER sip:1.2.3.4:5060 SIP/2.0<br>
Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683><br>
0(15468) ERROR:  [core/receive.c:231]: receive_msg(): core parsing of SIP message failed (127.0.0.1:38418/1)</p>
<p>./kamailio -V<br>
version: kamailio 5.2.0-dev7 (x86_64/linux) 491e19</p>
<p>Can you post a backtrace with gdb, and ideally a debug log of the crash?</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/kamailio/kamailio/issues/1420#issuecomment-423608877">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AF36Zfq5m56KxNr9AxBhVVOU5c7mElRMks5udR3ngaJpZM4Rx5w0">mute the thread</a>.<img src="https://github.com/notifications/beacon/AF36Zdn_jkk-ZnHnBIcsglWdO0KwyVqtks5udR3ngaJpZM4Rx5w0.gif" height="1" width="1" alt="" /></p>
<script type="application/json" data-scope="inboxmarkup">{"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/kamailio/kamailio","title":"kamailio/kamailio","subtitle":"GitHub repository","main_image_url":"https://assets-cdn.github.com/images/email/message_cards/header.png","avatar_image_url":"https://assets-cdn.github.com/images/email/message_cards/avatar.png","action":{"name":"Open in GitHub","url":"https://github.com/kamailio/kamailio"}},"updates":{"snippets":[{"icon":"PERSON","message":"@henningw in #1420: I can't reproduce this:\r\n\r\n 0(15468) DEBUG: \u003ccore\u003e [core/udp_server.c:491]: udp_rcv_loop(): received on udp socket: (90/87/87) [[REGISTER sip:1.2.3.4:5060 SIP/2.0 0A Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683]]\r\n 0(15468) DEBUG: \u003ccore\u003e [core/parser/msg_parser.c:610]: parse_msg(): SIP Request:\r\n 0(15468) DEBUG: \u003ccore\u003e [core/parser/msg_parser.c:612]: parse_msg():  method:  \u003cREGISTER\u003e\r\n 0(15468) DEBUG: \u003ccore\u003e [core/parser/msg_parser.c:614]: parse_msg():  uri:     \u003csip:1.2.3.4:5060\u003e\r\n 0(15468) DEBUG: \u003ccore\u003e [core/parser/msg_parser.c:616]: parse_msg():  version: \u003cSIP/2.0\u003e\r\n 0(15468) ERROR: \u003ccore\u003e [core/parser/parse_via.c:1324]: parse_via_param(): failure parsing via param\r\n 0(15468) ERROR: \u003ccore\u003e [core/parser/parse_via.c:2704]: parse_via(): parsing via on: \u003cSIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683\u003e\r\n 0(15468) ERROR: \u003ccore\u003e [core/parser/parse_via.c:2710]: parse_via(): via parse error\r\n 0(15468) ERROR: \u003ccore\u003e [core/parser/msg_parser.c:125]: get_hdr_field(): bad via\r\n 0(15468) DEBUG: \u003ccore\u003e [core/parser/msg_parser.c:279]: get_hdr_field(): error exit\r\n 0(15468) ERROR: \u003ccore\u003e [core/parser/msg_parser.c:337]: parse_headers(): bad header field [Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683]\r\n 0(15468) ERROR: \u003ccore\u003e [core/parser/msg_parser.c:681]: parse_msg(): ERROR: parse_msg: message=\u003cREGISTER sip:1.2.3.4:5060 SIP/2.0\r\nVia: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683\u003e\r\n 0(15468) ERROR: \u003ccore\u003e [core/receive.c:231]: receive_msg(): core parsing of SIP message failed (127.0.0.1:38418/1)\r\n\r\n./kamailio -V\r\nversion: kamailio 5.2.0-dev7 (x86_64/linux) 491e19\r\n\r\nCan you post a backtrace with gdb, and ideally a debug log of the crash?"}],"action":{"name":"View Issue","url":"https://github.com/kamailio/kamailio/issues/1420#issuecomment-423608877"}}}</script>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/kamailio/kamailio/issues/1420#issuecomment-423608877",
"url": "https://github.com/kamailio/kamailio/issues/1420#issuecomment-423608877",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
},
{
"@type": "MessageCard",
"@context": "http://schema.org/extensions",
"hideOriginalBody": "false",
"originator": "AF6C5A86-E920-430C-9C59-A73278B5EFEB",
"title": "Re: [kamailio/kamailio] Crash on receiving incorrect REGISTER request? (#1420)",
"sections": [
{
"text": "",
"activityTitle": "**Henning Westerholt**",
"activityImage": "https://assets-cdn.github.com/images/email/message_cards/avatar.png",
"activitySubtitle": "@henningw",
"facts": [

]
}
],
"potentialAction": [
{
"name": "Add a comment",
"@type": "ActionCard",
"inputs": [
{
"isMultiLine": true,
"@type": "TextInput",
"id": "IssueComment",
"isRequired": false
}
],
"actions": [
{
"name": "Comment",
"@type": "HttpPOST",
"target": "https://api.github.com",
"body": "{\n\"commandName\": \"IssueComment\",\n\"repositoryFullName\": \"kamailio/kamailio\",\n\"issueId\": 1420,\n\"IssueComment\": \"{{IssueComment.value}}\"\n}"
}
]
},
{
"name": "Close issue",
"@type": "HttpPOST",
"target": "https://api.github.com",
"body": "{\n\"commandName\": \"IssueClose\",\n\"repositoryFullName\": \"kamailio/kamailio\",\n\"issueId\": 1420\n}"
},
{
"targets": [
{
"os": "default",
"uri": "https://github.com/kamailio/kamailio/issues/1420#issuecomment-423608877"
}
],
"@type": "OpenUri",
"name": "View on GitHub"
},
{
"name": "Unsubscribe",
"@type": "HttpPOST",
"target": "https://api.github.com",
"body": "{\n\"commandName\": \"MuteNotification\",\n\"threadId\": 298294324\n}"
}
],
"themeColor": "26292E"
}
]</script>