From: Jens Axboe <jaxboe@fusionio.com>
To: Dan Carpenter <error27@gmail.com>,
Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>,
Matthew Wilcox <matthew@wil.cx>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>,
Jens Axboe <jens.axboe@oracle.com>,
Greg Kroah-Hartman <gregkh@suse.de>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch v2] fcntl: return -EFAULT if copy_to_user fails
Date: Thu, 03 Jun 2010 13:59:06 +0200 [thread overview]
Message-ID: <4C07990A.8080508@fusionio.com> (raw)
In-Reply-To: <20100603103542.GV5483@bicker>
On 2010-06-03 12:35, Dan Carpenter wrote:
> copy_to_user() returns the number of bytes remaining, but we want to
> return -EFAULT.
> ret = fcntl(fd, F_SETOWN_EX, NULL);
> With the original code ret would be 8 here.
>
> V2: Takuya Yoshikawa pointed out a similar issue in f_getown_ex()
Pretty basic bug, how long has this been there?
Acked-by: Jens Axboe <jaxboe@fusionio.com>
--
Jens Axboe
next prev parent reply other threads:[~2010-06-03 11:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-03 10:04 [patch] fcntl: return -EFAULT if copy_to_user fails Dan Carpenter
2010-06-03 10:22 ` Takuya Yoshikawa
2010-06-03 10:35 ` [patch v2] " Dan Carpenter
2010-06-03 10:42 ` Peter Zijlstra
2010-06-03 11:59 ` Jens Axboe [this message]
2010-06-03 12:16 ` Takuya Yoshikawa
2010-06-03 12:38 ` Eric Dumazet
2010-06-03 13:10 ` Nick Piggin
2010-06-03 13:24 ` Takuya Yoshikawa
2010-06-03 13:42 ` Eric Dumazet
2010-06-03 12:45 ` Dan Carpenter
2010-06-04 11:14 ` Dan Carpenter
2010-06-03 12:45 ` [patch] " Al Viro
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