Ubuntu
freetype package

  1. Bug #2059852
  2. Comment #3

Comment 3 for bug 2059852

Revision history for this message
M Schoenefeld (msch0815) wrote :

My fuzzing harness is the ftgrid tool:

ftgrid 12 ftgrid_invalid_free_shown_by_valgrind.ttf
Segmentation fault

The root cause seems related to calling FT_Glyph_To_Bitmap (as in the crash log). So my suggested approach to reproduce that with another tool than ftgrid would be to first check if my test harness at all triggers the above API call (set a breakpoint there in gdb and verify if it hits).