[FFmpeg-trac] #8147(undetermined:new): null pointer passed as argument bug at libavformat/subtitles.c

[FFmpeg]

#8147: null pointer passed as argument bug at libavformat/subtitles.c
-------------------------------------+-------------------------------------
             Reporter:  Suhwan       |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  ubsan        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 There's a null pointer passed as argument bug at libavformat/subtitles.c
 {{{
 libavformat/subtitles.c:197:11: runtime error: null pointer passed as
 argument 1, which is declared to never be null
 /usr/include/stdlib.h:828:30: note: nonnull attribute specified here
 }}}
 How to reproduce:
 {{{
 % ./ffmpeg_g -y -r 62 -i bc03b6a77ef2c3decfc000fd072c0af23351f271 -target
 dv -map 0 -c copy -c: a:106 mov_text -disposition: a:20 wmv2 -aframes 89
 -r 95 -ab 989k -ac 13 -b:v 520k output/tmp.wve
 ffmpeg version N-94887-ge55018ee11 (git master)
 built on ... ubuntu 18.04 with clang-6 and UBSAN option.
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/8147>
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