Opened 10 years ago
Closed 10 years ago
#3868 closed defect (fixed)
wav: deadlock (fuzzed file)
Reported by: | ami_stuff | Owned by: | |
---|---|---|---|
Priority: | important | Component: | avcodec |
Version: | git-master | Keywords: | imc deadlock |
Cc: | christophe.gisquet@gmail.com | Blocked By: | |
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | yes |
Description
(gdb) r -i dead2.wav Starting program: /media/sdb1/ffmpeg-snapshot/ffmpeg_g -i dead2.wav [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1". ffmpeg version 2.3.git Copyright (c) 2000-2014 the FFmpeg developers built on Aug 14 2014 23:56:56 with gcc 4.7 (Debian 4.7.2-5) configuration: --disable-yasm --enable-gpl --disable-ffserver --disable-ffprobe libavutil 54. 3.100 / 54. 3.100 libavcodec 56. 0.101 / 56. 0.101 libavformat 56. 1.100 / 56. 1.100 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 0.100 / 5. 0.100 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 0.100 / 1. 0.100 libpostproc 53. 0.100 / 53. 0.100 Program received signal SIGINT, Interrupt. 0x0807359e in freq2bark (freq=11919512.1328125) at libavcodec/imc.c:123 123 return 3.5 * atan((freq / 7500.0) * (freq / 7500.0)) + 13.0 * atan(freq * 0.00076); (gdb) bt #0 0x0807359e in freq2bark (freq=11919512.1328125) at libavcodec/imc.c:123 #1 0x080736c0 in iac_generate_tabs (q=0x93b0160, sampling_rate=0) at libavcodec/imc.c:150 #2 0x08073ab1 in imc_decode_init (avctx=0x93afb40) at libavcodec/imc.c:238 #3 0x08743bee in avcodec_open2 (avctx=0x93afb40, codec=codec@entry=0x8d239e0, options=0x93a8420) at libavcodec/utils.c:1539 #4 0x08290fe6 in avformat_find_stream_info (ic=0x93af340, options=0x93a8420) at libavformat/utils.c:3014 #5 0x080be3de in open_input_file (o=o@entry=0xbffff54c, filename=<optimized out>) at ffmpeg_opt.c:888 #6 0x080b7d17 in open_files (inout=inout@entry=0x8a76cfb "input", open_file=open_file@entry=0x80bdf90 <open_input_file>, l=<error reading variable: Unhandled dwarf expression opcode 0xfa>, l=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at ffmpeg_opt.c:2670 #7 0x080bff09 in ffmpeg_parse_options (argc=argc@entry=3, argv=argv@entry=0xbffff9f4) at ffmpeg_opt.c:2707 #8 0x080af43a in main (argc=3, argv=0xbffff9f4) at ffmpeg.c:3824 (gdb)
Attachments (1)
Change History (6)
by , 10 years ago
comment:1 by , 10 years ago
Component: | undetermined → avcodec |
---|---|
Keywords: | imc deadlock added |
Priority: | normal → important |
Reproduced by developer: | set |
Status: | new → open |
Version: | unspecified → git-master |
comment:2 by , 10 years ago
comment:3 by , 10 years ago
Analyzed by developer: | set |
---|---|
Cc: | added |
That or change the bark search to a Newton-Rhapson-like method.
But I agree, the reason is obviously because the file is corrupt, not that it is a valid content.
comment:5 by , 10 years ago
Resolution: | → fixed |
---|---|
Status: | open → closed |
Fixed by Christophe in 4728cdd8
Note:
See TracTickets
for help on using tickets.
This is not real deadlock, it is just very big sample rate.
The only idea is to limit sample rate to some number.