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From: Andi Kleen <ak@muc.de>
To: Libor Vanek <libor@conet.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.0-mm1 - kernel panic (VFS bug?)
Date: Tue, 06 Jan 2004 06:49:16 +0100	[thread overview]
Message-ID: <m3znd139ur.fsf@averell.firstfloor.org> (raw)
In-Reply-To: <1aQy3-2y1-7@gated-at.bofh.it> (Libor Vanek's message of "Tue, 06 Jan 2004 05:00:15 +0100")

Libor Vanek <libor@conet.cz> writes:
> ...
> asmlinkage long sys_open(const char __user * filename, int flags, int mode)
> {
>         char * tmp;
>         int fd, error;
> 	char tmp_path[PATH_MAX],tmp2_path[PATH_MAX];

PATH_MAX is 4096. The i386 stack is only 6k. You already overflowed it.
You're lucky if your machine only panics, much worse things can happen
with kernel stack overflows.

-Andi

       reply	other threads:[~2004-01-06  5:49 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1aQy3-2y1-7@gated-at.bofh.it>
2004-01-06  5:49 ` Andi Kleen [this message]
2004-01-06 12:35   ` 2.6.0-mm1 - kernel panic (VFS bug?) Libor Vanek
2004-01-06 12:39     ` Andi Kleen
2004-01-06 12:43       ` Libor Vanek
2004-01-06 13:19     ` Muli Ben-Yehuda
2004-01-06  3:52 Libor Vanek
2004-01-06  4:09 ` Nick Piggin
2004-01-06  4:12 ` Valdis.Kletnieks
2004-01-06  4:24   ` Libor Vanek
2004-01-06  4:35     ` Valdis.Kletnieks
2004-01-06  4:30 ` viro

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