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stop text output getting too large

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see https://github.com/libvips/libvips/issues/2300
This commit is contained in:
John Cupitt 2021-07-18 18:53:47 +01:00
parent 2041f228f5
commit 2cebec9a80
1 changed files with 9 additions and 1 deletions
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10
libvips/create/text.c
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@ -420,8 +420,16 @@ vips_text_build( VipsObject *object )
return( -1 );
}
/* Set DPI as pixels/mm.
/* Cairo can't go over 32k pixels.
*/
if( extents.width >= 32768 ||
extents.height >= 32768 ) {
vips_error( class->nickname,
"%s", _( "text image too large" ) );
g_mutex_unlock( vips_text_lock );
return( -1 );
}
image = t[0] = vips_image_new_memory();
vips_image_init_fields( image,
extents.width, extents.height, 4,