[FFmpeg-trac] #8859(avcodec:new): A heap-buffer-overflow in FFmpeg JIT code

FFmpeg trac at avcodec.org
Sat Aug 22 14:49:29 EEST 2020


#8859: A heap-buffer-overflow in FFmpeg JIT code
------------------------------------+-----------------------------------
             Reporter:  seviezhou   |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  aac         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+-----------------------------------
Changes (by cehoyos):

 * keywords:   => aac
 * component:  ffmpeg => avcodec


Comment:

 Replying to [ticket:8859 seviezhou]:
 > {{{
 > ./configure --disable-shared --enable-debug=3 --disable-ffplay
 --disable-ffprobe --disable-doc --disable-asm --cc=clang --cxx=clang++
 --ld=clang --toolchain=clang-asan
 > }}}
 This will get more readable if you use `./configure --toolchain=clang-asan
 && make ffmpeg_g`, feel free to add `--disable-asm`.

 > {{{
 > ./ffmpeg -y -f mov /dev/null -i @@
 > }}}

 This is unfortunately useless, use `ffmpeg_g` instead and post everything
 that gets printed, not only the part you consider important (we disagree).

 Please do not use zip here and please explain what "JIT" means.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8859#comment:1>
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