[FFmpeg-trac] #8122(undetermined:closed): Multiple uninitialized use on stack in ffmpeg

FFmpeg trac at avcodec.org
Fri Sep 6 23:30:42 EEST 2019


#8122: Multiple uninitialized use on stack in ffmpeg
-------------------------------------+-------------------------------------
             Reporter:  bwang        |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by bwang):

 Replying to [comment:5 jamrial]:
 > Wouldn't that hint at a bug in clang, and not ffmpeg?
 >
 > I tried git head using gcc 9.1 on linux x86_64, and indeed can't
 reproduce this.
 I reported this bug first in ffmpeg because I think maybe there are some
 undefined behaviors or optimizations that trigger this difference between
 gcc and clang.

 Is that possible that anyone can give me more details of this bug? Then
 maybe we can decide whether it is a compiler bug or there are some
 undefined behaviors in ffmpeg.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8122#comment:6>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list