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Avoid overflow in freetype/font_context.rs

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This commit is contained in:
Michael Wu 2015-11-16 13:07:56 -05:00
parent f8c2c3c3e4
commit 7cbef87b00
1 changed files with 2 additions and 1 deletions
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3
components/gfx/platform/freetype/font_context.rs
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@ -57,7 +57,8 @@ extern fn ft_realloc(mem: FT_Memory, _cur_size: c_long, new_req_size: c_long,
let new_actual_size = heap_size_of(new_ptr);
let user = (*mem).user as *mut User;
(*user).size += new_actual_size - old_actual_size;
(*user).size += new_actual_size;
(*user).size -= old_actual_size;
new_ptr
}