[sr-dev] [kamailio/kamailio] Crash when length($uac_req(callid)) > 128 (Issue #3135)

hance2010 notifications at github.com
Tue Jun 7 05:04:02 CEST 2022


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### Description

Crash when length($uac_req(callid)) > 128


### Troubleshooting

#### Reproduction

```
function send_options()
	local KAM_DOMAIN = "192.168.100.131"
	-- length(callid)  is 129
	local callid = "0123456789-0123456789-0123456789-0123456789-0123456789-0123456789-0123456789-0123456789-0123456789-0123456789-0123456789-0000000" 
	local tu = "sip:1001@" .. KAM_DOMAIN
	local sut = "sip:192.168.100.132:5080"

	KSR.pv.sets("$uac_req(method)", "OPTIONS")		
	KSR.pv.sets("$uac_req(callid)", callid)
	KSR.pv.sets("$uac_req(furi)", "sip:" .. "kamailio" .. "@" .. KAM_DOMAIN)
	KSR.pv.sets("$uac_req(ruri)", tu)
	KSR.pv.sets("$uac_req(turi)", tu)
	KSR.pv.sets("$uac_req(ouri)", sut)
	KSR.pv.seti("$uac_req(evroute)", 1)
	KSR.uac.uac_req_send()
end
```

#### Debugging Data

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#### Log Messages

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#### SIP Traffic

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### Possible Solutions

https://github.com/kamailio/kamailio/blob/5.5/src/modules/uac/uac_send.c#L425

check len

### Additional Information

  * **Kamailio Version** - output of `kamailio -v`

```
Kamailio5.5.4
```

* **Operating System**:

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```
Debian11
```


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