File libpng16-CVE-2015-0973.patch of Package libpng16.4425
http://sourceforge.net/p/libpng/code/ci/dc294204b641373bc6eb603075a8b98f51a75dd8/
--- pngrutil.c
+++ pngrutil.c
@@ -3003,7 +3003,7 @@
{
unsigned int pixel_depth = png_ptr->transformed_pixel_depth;
png_const_bytep sp = png_ptr->row_buf + 1;
- png_uint_32 row_width = png_ptr->width;
+ png_alloc_size_t row_width = png_ptr->width;
unsigned int pass = png_ptr->pass;
png_bytep end_ptr = 0;
png_byte end_byte = 0;
@@ -3278,7 +3278,7 @@
/* But don't allow this number to exceed the actual row width. */
if (bytes_to_copy > row_width)
- bytes_to_copy = row_width;
+ bytes_to_copy = (unsigned int)/*SAFE*/row_width;
}
else /* normal row; Adam7 only ever gives us one pixel to copy. */
@@ -3458,7 +3458,7 @@
dp += bytes_to_jump;
row_width -= bytes_to_jump;
if (bytes_to_copy > row_width)
- bytes_to_copy = row_width;
+ bytes_to_copy = (unsigned int)/*SAFE*/row_width;
}
}