Re: [PATCH] Fix crash with absurdly but not impossibly deeply nested device stacks.

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On Mon, Jan 28 2013, Ken Raeburn wrote:
> diskutil.c: Check for overflow in disk_util.path.
> diskutil.h: Expand disk_util.path to PATH_MAX.

Good stuff, thanks. Though I think that we should just return NULL on
failing to setup the path.

And:

> +	l = snprintf(du->path, sizeof(du->path), "%s/stat", path);
> +	if (l < 0 || l >= sizeof(du->path)) {

cosmetically, that should never be > sizeof(du->path), but it doesn't
hurt.

-- 
Jens Axboe

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