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[cid] Avoid segfault with malformed input (#46250). 

* src/cid/cidload.c (cid_read_subrs): Return a proper error code for
unsorted offsets.
This commit is contained in:
Werner Lemberg 2015-10-20 12:24:36 +02:00
parent 5cf83a5335
commit d47d372c96
2 changed files with 11 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,10 @@
2015-10-20 Werner Lemberg <wl@gnu.org>
[cid] Avoid segfault with malformed input (#46250).
* src/cid/cidload.c (cid_read_subrs): Return a proper error code for
unsorted offsets.
2015-10-20 StudioEtrange <nomorgan@gmail.com>
* CMakeLists.txt: Enable shared library builds on MinGW (#46233).

4
src/cid/cidload.c
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@ -484,7 +484,11 @@
/* offsets must be ordered */
for ( count = 1; count <= num_subrs; count++ )
if ( offsets[count - 1] > offsets[count] )
{
FT_TRACE1(( "cid_read_subrs: offsets are not ordered\n" ));
error = FT_THROW( Syntax_Error );
goto Fail;
}
/* now, compute the size of subrs charstrings, */
/* allocate, and read them */