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Bug 814329 Protect fim_process_event from NULL input r=jesup

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This commit is contained in:
Ethan Hugg 2012-11-28 08:38:50 -08:00
parent 6b00e891cd
commit ecd3a4e29c
1 changed files with 10 additions and 1 deletions
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11
media/webrtc/signaling/src/sipcc/core/gsm/fim.c
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@ -2,6 +2,7 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Assertions.h"
#include "cpr_types.h"
#include "cpr_stdlib.h"
#include "cpr_stdio.h"
@ -593,11 +594,19 @@ fim_process_event (void *data, boolean cac_passed)
* Skip the head.
*/
icb = call_chn->next_icb;
while (done != TRUE) {
MOZ_ASSERT(icb);
while (icb && !done) {
/*
* Set the required event data so the entity can process the event.
*/
cb_hdr = (fim_cb_hdr_t *) (icb->cb);
MOZ_ASSERT(cb_hdr);
if (!cb_hdr) {
done = TRUE;
break;
}
event.data = cb_hdr;
event.state = cb_hdr->state;
event.event = event_id;