[FFmpeg-trac] #7982(undetermined:new): null pointer passed at frame_thread_encoder.c:213 and undefined behaviour at r210enc.c

FFmpeg trac at avcodec.org
Mon Jul 1 04:50:35 EEST 2019


#7982: null pointer passed at frame_thread_encoder.c:213 and undefined behaviour
at r210enc.c
-------------------------------------+-------------------------------------
             Reporter:  Suhwan       |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  crash,       |               Blocked By:
  r210enc                            |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 There's two null pointer passed as argument at
 libavcodec/frame_thread_encoder.c:213:20: and undefined behaviour at
 libavcodec/r210enc.c:69:28. (left shift of 522 by 22)

 How to reproduce:
 {{{
 Run following cmd:
 % ffmpeg_g  -t 3 -y -i tmp.avi -map 0 -c:s:1 h263p -c:v r10k
 -disposition:a r10k -disposition:s adpcm_adx -vframes 64 -aframes 81
 tmp_.adx

 ffmpeg version N-94142-g3b2082c663 Copyright (c) 2000-2019 the FFmpeg
 developers

 built with clang version 9.0.0 (https://github.com/llvm/llvm-project.git
 442a120567a4bc6c59bc754f9edabfb770086f36)
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7982>
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