Opened 6 years ago
Closed 5 years ago
#7015 closed defect (worksforme)
UBSan: libavutil/eval.c:318:77: runtime error: division by zero
| Reported by: | tsmith | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avutil |
| Version: | git-master | Keywords: | ubsan |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
How to reproduce:
$ UBSAN_OPTIONS=print_stacktrace=1 ./ffmpeg -f flac -i test.flac -vn -threads 1 -f null -
ffmpeg version N-89982-g81d6501 Copyright (c) 2000-2018 the FFmpeg developers
built with clang version 4.0.0-1ubuntu1~16.04.2 (tags/RELEASE_400/rc1)
configuration: --cc=clang --cxx=clang++ --disable-libxcb --disable-xlib --disable-logging --disable-ffprobe --disable-ffplay --disable-sdl2 --disable-doc --disable-pthreads --disable-network --disable-d3d11va --disable-dxva2 --disable-vaapi --disable-vdpau --disable-stripping --disable-runtime-cpudetect --disable-postproc --disable-securetransport --disable-iconv --disable-swscale --disable-dxva2 --disable-vaapi --disable-vdpau --disable-videotoolbox --disable-everything --enable-encoder=pcm_s16le --disable-lzma --enable-protocol='file,pipe' --enable-muxer=null --enable-decoder=flac --enable-demuxer=flac --disable-pic --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-nvdec --disable-v4l2_m2m --disable-zlib --assert-level=2 --enable-filter=aresample
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 10.100 / 58. 10.100
libavformat 58. 9.100 / 58. 9.100
libavdevice 58. 1.100 / 58. 1.100
libavfilter 7. 11.101 / 7. 11.101
libswresample 3. 0.101 / 3. 0.101
[flac @ 0x619000000580] Warning: not compiled with thread support, using thread emulation
[flac @ 0x61b000000080] Could not find codec parameters for stream 0 (Audio: flac, mono, s16 (5 bit)): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, flac, from 'test.flac':
Duration: N/A, bitrate: N/A
Stream #0:0: Audio: flac, mono, s16 (5 bit)
[flac @ 0x619000000f80] Warning: not compiled with thread support, using thread emulation
Stream mapping:
Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Finishing stream 0:0 without any data written to it.
[abuffer @ 0x610000001440] Value inf for parameter 'time_base' out of range [0 - 2.14748e+09]
libavutil/eval.c:318:77: runtime error: division by zero
#0 0x73cd4f in eval_expr (/home/user/code/FFmpeg/ffmpeg+0x73cd4f)
#1 0x73cfda in av_expr_parse_and_eval (/home/user/code/FFmpeg/ffmpeg+0x73cfda)
#2 0x77091d in set_string_number (/home/user/code/FFmpeg/ffmpeg+0x77091d)
#3 0x76d8ad in av_opt_set (/home/user/code/FFmpeg/ffmpeg+0x76d8ad)
#4 0x59afe3 in process_options /home/user/code/FFmpeg/libavfilter/avfilter.c:905:20
#5 0x599d4f in avfilter_init_str /home/user/code/FFmpeg/libavfilter/avfilter.c:1054:19
#6 0x5a3d25 in avfilter_graph_create_filter /home/user/code/FFmpeg/libavfilter/avfiltergraph.c:152:11
#7 0x53d1ea in configure_input_audio_filter /home/user/code/FFmpeg/fftools/ffmpeg_filter.c:890:16
#8 0x53d1ea in configure_input_filter /home/user/code/FFmpeg/fftools/ffmpeg_filter.c:981
#9 0x53d1ea in configure_filtergraph /home/user/code/FFmpeg/fftools/ffmpeg_filter.c:1089
#10 0x56af1d in flush_encoders /home/user/code/FFmpeg/fftools/ffmpeg.c:1873:23
#11 0x56af1d in transcode /home/user/code/FFmpeg/fftools/ffmpeg.c:4655
#12 0x55c87d in main /home/user/code/FFmpeg/fftools/ffmpeg.c:4812:5
#13 0x7fed6e36a82f in __libc_start_main /build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291
#14 0x41a928 in _start (/home/user/code/FFmpeg/ffmpeg+0x41a928)
git commit 81d6501be77b273053a66eeced94d78e2021f1d1
Attachments (1)
Change History (3)
by , 6 years ago
comment:1 by , 6 years ago
| Keywords: | ubsan added |
|---|---|
| Version: | unspecified → git-master |
comment:2 by , 5 years ago
| Resolution: | → worksforme |
|---|---|
| Status: | new → closed |
Not reproducible with clang 6.0:
ffmpeg -i ~/Downloads/test.flac -f null -
ffmpeg version N-92703-gc6e1966c1a Copyright (c) 2000-2018 the FFmpeg developers
built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
configuration: --cc='ccache clang' --as='ccache clang' --disable-indevs --disable-outdevs --disable-autodetect --enable-gpl --enable-libpulse --enable-indev=lavfi --enable-indev=alsa --enable-indev=pulse --enable-nonfree --en
able-zlib --enable-openssl --enable-outdev=alsa --disable-static --enable-shared --enable-ladspa --enable-lv2 --enable-libbs2b --enable-libmp3lame --enable-librubberband --enable-libmysofa --enable-libx264 --enable-fontconfig -
-enable-libilbc --enable-libaom --enable-libfreetype --enable-libass --enable-libzimg --disable-stripping --samples=../fate-suite
libavutil 56. 24.101 / 56. 24.101
libavcodec 58. 42.101 / 58. 42.101
libavformat 58. 24.101 / 58. 24.101
libavdevice 58. 6.101 / 58. 6.101
libavfilter 7. 46.101 / 7. 46.101
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
[flac @ 0xf33e00] Could not find codec parameters for stream 0 (Audio: flac, mono, s16 (5 bit)): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, flac, from '/home/computer/Downloads/test.flac':
Duration: N/A, bitrate: N/A
Stream #0:0: Audio: flac, mono, s16 (5 bit)
Stream mapping:
Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[abuffer @ 0x1072340] Value inf for parameter 'time_base' out of range [0 - 2.14748e+09]
Last message repeated 3 times
[abuffer @ 0x1072340] Error setting option time_base to value 1/0.
[graph_0_in_0_0 @ 0x1072240] Error applying options to the filter.
Error reinitializing filters!
Error while filtering: Numerical result out of range
Finishing stream 0:0 without any data written to it.
[abuffer @ 0x1073f00] Value inf for parameter 'time_base' out of range [0 - 2.14748e+09]
Last message repeated 3 times
[abuffer @ 0x1073f00] Error setting option time_base to value 1/0.
[graph_0_in_0_0 @ 0x1073dc0] Error applying options to the filter.
Error configuring filter graph
Conversion failed!
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Not reproducible with gcc.
$ ffmpeg_g -i test.flac -threads 1 -f null - ffmpeg version N-89989-g10bcc41 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 6.3.0 (GCC) configuration: --enable-gpl --toolchain=gcc-usan libavutil 56. 7.100 / 56. 7.100 libavcodec 58. 10.100 / 58. 10.100 libavformat 58. 9.100 / 58. 9.100 libavdevice 58. 1.100 / 58. 1.100 libavfilter 7. 11.101 / 7. 11.101 libswscale 5. 0.101 / 5. 0.101 libswresample 3. 0.101 / 3. 0.101 libpostproc 55. 0.100 / 55. 0.100 [flac @ 0x72640c0] Could not find codec parameters for stream 0 (Audio: flac, mono, s16 (5 bit)): unspecified sample rate Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, flac, from 'test.flac': Duration: N/A, bitrate: N/A Stream #0:0: Audio: flac, mono, s16 (5 bit) Stream mapping: Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help Finishing stream 0:0 without any data written to it. [abuffer @ 0x74907c0] Value inf for parameter 'time_base' out of range [0 - 2.14748e+09] Last message repeated 3 times [abuffer @ 0x74907c0] Error setting option time_base to value 1/0. [graph_0_in_0_0 @ 0x74906c0] Error applying options to the filter. Error configuring filter graph Conversion failed!