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User who did this - Alex Hermann (axlh)

Attached to Project - sip-router Summary - Segfault in allow_trusted2 Task Type - Bug Report Category - Modules kamailio Status - Assigned Assigned To - Daniel-Constantin Mierla Operating System - All Severity - Medium Priority - Normal Reported Version - 3.1 Due in Version - Undecided Due Date - Undecided Details - if (allow_trusted("$si", "$proto"))

Will cause a segfault.

$proto is returned from the following code fragment in pv_core.c:

int pv_get_proto(struct sip_msg *msg, pv_param_t *param, pv_value_t *res) { str s; if(msg==NULL) return -1;

switch(msg->rcv.proto) { case PROTO_UDP: s.s = "udp"; s.len = 3; break;

The "udp" string is allocated by the compiler in the TEXT segment, which by its nature is not writable. The tolower() which allow_trusted2() tries to do later is rewarded with a segfault.

Attached patch fixes the segfault.

One or more files have been attached.

More information can be found at the following URL: http://sip-router.org/tracker/index.php?do=details&task_id=102

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