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Merge pull request #2179 from lovell/nsgifload-limit-dimensions

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nsgifload: enforce maximum GIF dimensions of 16383
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John Cupitt 2021-04-02 11:44:30 +01:00 committed by GitHub
commit c8363d4e61
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1 changed files with 5 additions and 5 deletions
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libvips/foreign/nsgifload.c
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@ -534,17 +534,17 @@ vips_foreign_load_nsgif_class_init( VipsForeignLoadNsgifClass *class )
static void * static void *
vips_foreign_load_nsgif_bitmap_create( int width, int height ) vips_foreign_load_nsgif_bitmap_create( int width, int height )
{ {
/* Check GIF dimensions fit within 16-bit unsigned. /* Enforce max GIF dimensions of 16383 (0x7FFF).
*/ */
if( width <= 0 || if( width <= 0 ||
width > 65535 || width > 16383 ||
height <= 0 || height <= 0 ||
height > 65535 ) { height > 16383 ) {
vips_error( "gifload", vips_error( "gifload",
"%s", _( "dimensions out of range ") ); "%s", _( "bad image dimensions") );
return( NULL ); return( NULL );
} }
return g_malloc0( width * height * 4 ); return g_malloc0( (gsize) width * height * 4 );
} }
static void static void