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gdi32: Add an exception handler to catch bad pointers passed by an application.

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This commit is contained in:
Huw Davies 2011-08-23 11:49:53 +01:00 committed by Alexandre Julliard
parent 597edc503f
commit 75e2e9cf3f
1 changed files with 11 additions and 1 deletions
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10
dlls/gdi32/dibdrv/dc.c
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@ -23,6 +23,7 @@
#include "gdi_private.h"
#include "dibdrv.h"
#include "wine/exception.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dib);
@ -272,7 +273,16 @@ DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bit
if ( !init_dib_info_from_bitmapinfo( &dst_dib, dst_info, dst_bits, 0 ) )
return ERROR_BAD_FORMAT;
__TRY
{
ret = dst_dib.funcs->convert_to( &dst_dib, &src_dib, &src->visrect );
}
__EXCEPT_PAGE_FAULT
{
WARN( "invalid bits pointer %p\n", src_bits );
ret = FALSE;
}
__ENDTRY
/* We shared the color tables, so there's no need to free the dib_infos here */
if(!ret) return ERROR_BAD_FORMAT;