linux-kernel - Re: [uml-devel] fuzz tested 32 bit user mode linux image hangs in radix_tree_next

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Message-ID: <CALYGNiPvJF1u8gXNcX1AZR5-VkGqJnaose84KBbdaoBAq8aoGQ@mail.gmail.com>
Date:	Wed, 6 Nov 2013 20:06:36 +0400
From:	Konstantin Khlebnikov <koct9i@...il.com>
To:	Toralf Förster <toralf.foerster@....de>
Cc:	Richard Weinberger <richard@....at>,
	Richard Weinberger <richard.weinberger@...il.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	UML devel <user-mode-linux-devel@...ts.sourceforge.net>
Subject: Re: [uml-devel] fuzz tested 32 bit user mode linux image hangs in radix_tree_next_chunk()

In this case it must stop after scanning whole tree in line:
/* Overflow after ~0UL */
if (!index)
  return NULL;
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