[FFmpeg-trac] #2979(undetermined:new): wmalossless: deadlock with fuzzed file

[FFmpeg]

#2979: wmalossless: deadlock with fuzzed file
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 {{{
 (gdb) r -i ./deadlock.wmv -vn -f null -
 The program being debugged has been started already.
 Start it from the beginning? (y or n) y

 Starting program: /media/sdb1/ffmpeg-HEAD-93439e8/ffmpeg_g -i
 ./deadlock.wmv -vn -f null -
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
 ffmpeg version 2.0-93439e8 Copyright (c) 2000-2013 the FFmpeg developers
   built on Sep 18 2013 23:23:15 with gcc 4.7 (Debian 4.7.2-5)
   configuration: --disable-yasm --enable-gpl --disable-ffprobe --disable-
 ffserver
   libavutil      52. 44.100 / 52. 44.100
   libavcodec     55. 31.101 / 55. 31.101
   libavformat    55. 18.100 / 55. 18.100
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 86.101 /  3. 86.101
   libswscale      2.  5.100 /  2.  5.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, asf, from './deadlock.wmv':
   Metadata:
     title           : EMR Datacenter:  Transaction Recap
     artist          : James Carlburg
     copyright       : © 2004 by James Carlburg
     WMFSDKNeeded    : 0.0.0.0000
     DeviceConformanceTemplate: @
     WM/WMADRCPeakReference: 22602
     WM/WMADRCPeakTarget: 22602
     WM/WMADRCAverageReference: 426
     WM/WMADRCAverageTarget: 131498
     WMFSDKVersion   : 9.00.00.2980
     IsVBR           : 1
     VBR Peak        : 38000
     Buffer Average  : 3088
   Duration: 00:00:39.43, start: 0.000000, bitrate: 101 kb/s
     Stream #0:0(eng): Audio: wmalossless (c[1][0][0] / 0x0163), 44100 Hz,
 stereo, s16p, 57 kb/s
     Stream #0:1(eng): Video: mss2 (MSS2 / 0x3253534D), rgb24, 800x600, 41
 kb/s, 15 tbr, 1k tbn, 1k tbc
 [New Thread 0xb7dd1b70 (LWP 6134)]
 [New Thread 0xb75d1b70 (LWP 6135)]
 [New Thread 0xb6dd1b70 (LWP 6136)]
 [New Thread 0xb65d1b70 (LWP 6137)]
 [New Thread 0xb5dd1b70 (LWP 6138)]
 [New Thread 0xb55d1b70 (LWP 6139)]
 [New Thread 0xb4dd1b70 (LWP 6140)]
 [New Thread 0xb45d1b70 (LWP 6141)]
 [New Thread 0xb3dd1b70 (LWP 6142)]
 Output #0, null, to 'pipe:':
   Metadata:
     title           : EMR Datacenter:  Transaction Recap
     artist          : James Carlburg
     copyright       : © 2004 by James Carlburg
     WMFSDKNeeded    : 0.0.0.0000
     DeviceConformanceTemplate: @
     WM/WMADRCPeakReference: 22602
     WM/WMADRCPeakTarget: 22602
     WM/WMADRCAverageReference: 426
     WM/WMADRCAverageTarget: 131498
     WMFSDKVersion   : 9.00.00.2980
     IsVBR           : 1
     VBR Peak        : 38000
     Buffer Average  : 3088
     encoder         : Lavf55.18.100
     Stream #0:0(eng): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (wmalossless -> pcm_s16le)
 Press [q] to stop, [?] for help

 Program received signal SIGINT, Interrupt.
 0x0867ab34 in avcodec_decode_audio4 (avctx=avctx at entry=0x9116440,
     frame=frame at entry=0x915f360,
 got_frame_ptr=got_frame_ptr at entry=0xbffff504,
     avpkt=avpkt at entry=0xbffff750) at libavcodec/utils.c:2219
 2219            if (ret >= 0 && *got_frame_ptr) {
 (gdb) bt
 #0  0x0867ab34 in avcodec_decode_audio4 (avctx=avctx at entry=0x9116440,
     frame=frame at entry=0x915f360,
 got_frame_ptr=got_frame_ptr at entry=0xbffff504,
     avpkt=avpkt at entry=0xbffff750) at libavcodec/utils.c:2219
 #1  0x080b562a in decode_audio (ist=ist at entry=0x9117480,
     pkt=pkt at entry=0xbffff750, got_output=got_output at entry=0xbffff504)
     at ffmpeg.c:1526
 #2  0x080b8a40 in output_packet (pkt=0xbffff6e8, ist=0x9117480)
     at ffmpeg.c:1863
 #3  process_input (file_index=2) at ffmpeg.c:3089
 #4  0x080a3043 in transcode_step () at ffmpeg.c:3185
 #5  transcode () at ffmpeg.c:3237
 #6  main (argc=<optimized out>, argv=<optimized out>) at ffmpeg.c:3415
 (gdb)
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2979>
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