From: Sergey Vlasov <vsu@altlinux.ru>
To: Panagiotis Issaris <panagiotis.issaris@mech.kuleuven.ac.be>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] raw1394 missing failure handling
Date: Wed, 2 Mar 2005 14:37:17 +0300 [thread overview]
Message-ID: <20050302143717.1ea9f57e.vsu@altlinux.ru> (raw)
In-Reply-To: <42259F3A.8000206@mech.kuleuven.ac.be>
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On Wed, 02 Mar 2005 12:10:50 +0100 Panagiotis Issaris wrote:
> In the raw1394 driver the failure handling for
> a __copy_to_user call is missing.
>
> With friendly regards,
> Takis
>
> --
> K.U.Leuven, Mechanical Eng., Mechatronics & Robotics Research Group
> http://people.mech.kuleuven.ac.be/~pissaris/
>
>
>
> [pi-20050302T114855-linux_2_6_11-raw1394_copy_to_user_failure_handling.diff text/x-patch (922 bytes)]
> diff -pruN linux-2.6.11/drivers/ieee1394/raw1394.c linux-2.6.11-pi/drivers/ieee1394/raw1394.c
> --- linux-2.6.11/drivers/ieee1394/raw1394.c 2005-03-02 11:44:26.000000000 +0100
> +++ linux-2.6.11-pi/drivers/ieee1394/raw1394.c 2005-03-02 11:47:38.000000000 +0100
> @@ -443,7 +443,8 @@ static ssize_t raw1394_read(struct file
> req->req.error = RAW1394_ERROR_MEMFAULT;
> }
> }
> - __copy_to_user(buffer, &req->req, sizeof(req->req));
> + if (__copy_to_user(buffer, &req->req, sizeof(req->req)))
> + return -EFAULT;
Bug: "req" is not freed in the failure case.
>
> free_pending_request(req);
> return sizeof(struct raw1394_request);
>
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prev parent reply other threads:[~2005-03-02 11:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-02 11:10 Panagiotis Issaris
2005-03-02 11:33 ` Anton Altaparmakov
2005-03-02 12:28 ` Panagiotis Issaris
2005-03-02 14:24 ` Dmitry Torokhov
2005-03-02 14:30 ` Panagiotis Issaris
2005-03-03 21:48 ` Jody McIntyre
2005-03-03 22:41 ` Panagiotis Issaris
2005-03-03 22:55 ` Panagiotis Issaris
2005-03-05 18:47 ` Jody McIntyre
2005-03-05 21:10 ` Gene Heskett
2005-03-02 11:37 ` Sergey Vlasov [this message]
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