Wireshark-bugs: [Wireshark-bugs] [Bug 6898] RTMPT OutOfMemory - Buildbot crash output: fuzz-2012
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 16 May 2013 01:50:57 +0000

Comment # 23 on bug 6898 from 
(In reply to comment #2)
> The problem is the RTMPT dissector is allocating more memory than the fuzz
> script thinks is reasonable.  The RTMPT dissector has an upper limit on
> packet sizes which apparently has been increased several times:
> 
> /* Native Bandwidth Detection (using the checkBandwidth(), onBWCheck(),
>  * onBWDone() calls) transmits a series of increasing size packets over
>  * the course of 2 seconds. On a fast link the largest packet can just
>  * exceed 256KB. */
> /* #define RTMPT_MAX_PACKET_SIZE     131072 */
> /* #define RTMPT_MAX_PACKET_SIZE     262144 */
> #define RTMPT_MAX_PACKET_SIZE         524288

Lowering the limit back to 262144 seems to avoid the fuzz failures (though I
certainly haven't tried them all!).  I checked in a change to do that in r49321
(mainly to silence the fuzz bot).  I'll backport the change to 1.10, 1.8, and
1.6.

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