[U-Boot] [U-Boot, v2] libfdt: Fix segfault when calling fit_check_format() on corrupt FIT images

[Tom Rini]

On Wed, Feb 26, 2014 at 11:32:21AM -0500, Tom Rini wrote:

> From: Jon Nalley <lists at bluebot.org>
> 
> It has been observed that fit_check_format() will fail when passed a
> corrupt FIT image.  This was tracked down to _fdt_string_eq():
> return (strlen(p) == len) && (memcmp(p, s, len) == 0);
> 
> In the case of a corrupt FIT image one can't depend on 'p' being NULL
> terminated.  I changed it to use strnlen() to fix the issue.
> 
> Signed-off-by: Tom Rini <trini at ti.com>

Applied to u-boot/master, thanks!

-- 
Tom
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