ReceiveTempSMS
/
Al-Qurtas-Islamic-bank-The-Best-Bank-in-Iraq
forked from minhngoc25a/freetype2
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[truetype] Avoid segfault for invalid variation data. 

* src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Assure
`itemCount' is not zero.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=441
This commit is contained in:
Werner Lemberg 2017-01-23 07:43:56 +01:00
parent 15c6e8d6c5
commit 79d52b9a8d
2 changed files with 21 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
ChangeLog
View File

@ -1,3 +1,14 @@
2017-01-23 Werner Lemberg <wl@gnu.org>
[truetype] Avoid segfault for invalid variation data.
* src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Assure
`itemCount' is not zero.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=441
2017-01-20 Werner Lemberg <wl@gnu.org>
* src/truetype/ttinterp.c (TT_RunIns): Adjust loop detector limits.

11
src/truetype/ttgxvar.c
View File

@ -431,7 +431,8 @@
if ( format != 1 )
{
FT_TRACE2(( "bad store format %d\n", format ));
FT_TRACE2(( "ft_var_load_item_variation_store: bad store format %d\n",
format ));
error = FT_THROW( Invalid_Table );
goto Exit;
}
@ -441,6 +442,14 @@
FT_READ_USHORT( itemStore->dataCount ) )
goto Exit;
/* we need at least one entry in `itemStore->varData' */
if ( !itemStore->dataCount )
{
FT_TRACE2(( "ft_var_load_item_variation_store: missing varData\n" ));
error = FT_THROW( Invalid_Table );
goto Exit;
}
/* make temporary copy of item variation data offsets; */
/* we will parse region list first, then come back */
if ( FT_NEW_ARRAY( dataOffsetArray, itemStore->dataCount ) )