Opened 3 years ago

Closed 10 months ago

Last modified 10 months ago

#5906 closed defect (fixed)

Segmentation fault in FFv1 with YUV420P input

Reported by: thegeek Owned by:
Priority: normal Component: avcodec
Version: unspecified Keywords: ffv1
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Summary of the bug:
Segmentation fault in libavcodec FFv1.
How to reproduce:

Compile muxing.c example w/attached diff. The diff essentially enables experimental mode.
Latest 3.1 release.

uname -a:
MINGW32_NT-10.0 Oystein-PC 2.6.0(0.304/5/3) 2016-09-09 09:46 This is MSYS2 system running MINGW32, but it reproduces in x64 as well.
 
%

Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker.

Attachments (1)

ffv1_crash.diff​ (1.7 KB) - added by thegeek 3 years ago.

Download all attachments as: .zip

Change History (6)

Changed 3 years ago by thegeek

comment:1 Changed 3 years ago by thegeek

For me it segfaults fairly quickly (pts:583), but when I run under gdb it has not segfaulted yet.

comment:2 Changed 3 years ago by cehoyos

  • Keywords ffv1 added

Is this issue reproducible with current FFmpeg git head?

comment:3 Changed 3 years ago by thegeek

Yes, I just tested and can confirm latest git master (85d23e5) also segfaults.

comment:4 Changed 10 months ago by richardpl

  • Resolution set to needs_more_info
  • Status changed from new to closed

Can not reproduce.

comment:5 Changed 10 months ago by cehoyos

  • Resolution changed from needs_more_info to fixed

The invalid reads I see here with old FFmpeg are not reproducible since 8822e2b9543bb02fb2889dff627b6db023053253

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