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From: Al Viro <viro@ftp.linux.org.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ulrich Drepper <drepper@redhat.com>,
	Markus Trippelsdorf <markus@trippelsdorf.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org
Subject: Re: 2.6.22-rc6(mm1) Unable to handle kernel NULL pointer dereference - git-bisect result
Date: Sun, 8 Jul 2007 19:34:45 +0100	[thread overview]
Message-ID: <20070708183445.GK21668@ftp.linux.org.uk> (raw)
In-Reply-To: <alpine.LFD.0.999.0707081126260.31544@woody.linux-foundation.org>

On Sun, Jul 08, 2007 at 11:30:15AM -0700, Linus Torvalds wrote:
>  - non-owners can set it only when they have write permissions, and if it 
>    was a file descriptor, the only way for us to know that they have write 
>    permissions is if it's opened writably, which is hopefully equivalent 
>    to that MAY_WRITE test (except the MAY_WRITE test was done at _open_ 
>    time).
> 
> This would seem to be the minimal change, and I think it's right.

Yeah, FMODE_WRITE is probably right.

  reply	other threads:[~2007-07-08 18:34 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-08  5:14 2.6.22-rc6-mm1-cfs-v19 Unable to handle kernel NULL pointer dereference (reproducable) Markus Trippelsdorf
2007-07-08  8:20 ` Andrew Morton
2007-07-08 10:09   ` Markus Trippelsdorf
2007-07-08 15:28     ` 2.6.22-rc6(mm1) Unable to handle kernel NULL pointer dereference - git-bisect result Markus Trippelsdorf
2007-07-08 17:02       ` Linus Torvalds
2007-07-08 17:06       ` Ulrich Drepper
2007-07-08 17:33         ` Markus Trippelsdorf
2007-07-08 17:34         ` Al Viro
2007-07-08 17:41           ` Ulrich Drepper
2007-07-08 18:12             ` Linus Torvalds
2007-07-08 18:24               ` Ulrich Drepper
2007-07-08 18:31                 ` Al Viro
2007-07-08 18:40                 ` Linus Torvalds
2007-07-08 18:30               ` Linus Torvalds
2007-07-08 18:34                 ` Al Viro [this message]
2007-07-08 18:38                 ` Linus Torvalds
2007-07-08 18:51                   ` Al Viro
2007-07-08 19:00                     ` Linus Torvalds
2007-07-08 19:26                       ` Al Viro
2007-07-08 18:19             ` Al Viro
2007-07-09 12:40 ` 2.6.22-rc6-mm1-cfs-v19 Unable to handle kernel NULL pointer dereference (reproducable) Lenar Lõhmus

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