[libav-bugs] [Bug 962] New: avconv: NULL pointer dereference in mpeg4video_probe (m4vdec.c)

bugzilla at libav.org bugzilla at libav.org
Wed Sep 14 16:40:43 CEST 2016


https://bugzilla.libav.org/show_bug.cgi?id=962

            Bug ID: 962
           Summary: avconv: NULL pointer dereference in mpeg4video_probe
                    (m4vdec.c)
           Product: Libav
           Version: git HEAD
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: ---
         Component: general
          Assignee: bugzilla at libav.org
          Reporter: ago at gentoo.org
                CC: lu_zero at gentoo.org

Created attachment 604
  --> https://bugzilla.libav.org/attachment.cgi?id=604&action=edit
reproducer

Hello,

the attached reproducer causes a NULL pointer dereference.

The command used to hit the crash is:
avconv -i $FILE -f null -


The stacktrace is about 11.3, but the bug is reproducible with 11.7 too
This is not reproducible in master because of this commit:
https://git.libav.org/?p=libav.git;a=commit;h=v12_dev0-3071-ge5b0197

Luca said that the issue is not anymore reachable though the provided testcase,
but the issue is still here.


If you need something else, feel free to ask.

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