[FFmpeg-trac] #8183(undetermined:new): heap-buffer-overflow at libavcodec/get_bits.h

FFmpeg trac at avcodec.org
Fri Sep 20 13:09:23 EEST 2019


#8183: heap-buffer-overflow at libavcodec/get_bits.h
-------------------------------------+-------------------------------------
             Reporter:  Suhwan       |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  asan         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 There is a heap-buffer-overflow bug at libavcodec/get_bits.h:403:5
 {{{
 SUMMARY: AddressSanitizer: heap-buffer-overflow
 ffmpeg/./libavcodec/get_bits.h:403:5 in get_bits
 }}}
 How to reproduce:
 {{{
 % ./ffmpeg_g -t 3 -y -r 82 -i test_v_av1_320x180.webm -loglevel 99 -map 0
 -c copy -vframes 102 -aframes 68 -r 61 -ac 1 -b:v 854k tmp.mp4

 ffmpeg version N-94982-gea673a0edb Copyright (c) 2000-2019 the FFmpeg
 developers
   built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
   configuration: --cc=clang --cxx=clang++ --ld=clang --enable-debug
 --toolchain=clang-asan

 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8183>
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