[libav-bugs] [Bug 817] New: sws_scale overwrite 2 bytes

bugzilla at aruru.libav.org bugzilla at aruru.libav.org
Mon Feb 9 03:38:42 CET 2015


            Bug ID: 817
           Summary: sws_scale overwrite 2 bytes
           Product: Libav
           Version: git HEAD
          Hardware: All
                OS: All
            Status: NEW
          Severity: critical
          Priority: ---
         Component: libswscale
          Assignee: bugzilla at libav.org
          Reporter: xiangqianyong at hotmail.com

Created attachment 520
  --> https://bugzilla.libav.org/attachment.cgi?id=520&action=edit
the test file

I have attach the test.c file.
I have test it in Linux (x86 and x86_x64), windows (x86 and x64), OSX 64bits.

gcc -g -std=c99 -I/usr/local/libav/include -L/usr/local/libav/lib test.c -o
test -lswscale -lavutil -lm

As you can see, the padding 2 bytes, 'A', 'A' whill be changed by sws_scale.
"bad" whill be printed out.

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