netdev - Re: [PATCH] staging: r8712u: fix bug in r8712_recv

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <504E4239.1050700@lwfinger.net>
Date:	Mon, 10 Sep 2012 14:40:41 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	netdev <netdev@...r.kernel.org>, Dave Jones <davej@...hat.com>
Subject: Re: [PATCH] staging: r8712u: fix bug in r8712_recv_indicatepkt()

On 09/10/2012 02:22 PM, Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
>
> 64bit arches have a buggy r8712u driver, let's fix it.
>
> skb->tail must be set properly or network stack behavior is undefined.
>
> Addresses https://bugzilla.redhat.com/show_bug.cgi?id=847525
> Addresses https://bugzilla.kernel.org/show_bug.cgi?id=45071
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Larry Finger <Larry.Finger@...inger.net>
> Cc: Dave Jones <davej@...hat.com>
> Cc: stable@...r.kernel.org [2.6.37+]

Acked-by: Larry Finger <Larry.Finger@...inger.net>

Larry

> ---
>   drivers/staging/rtl8712/recv_linux.c |    7 +------
>   1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/drivers/staging/rtl8712/recv_linux.c b/drivers/staging/rtl8712/recv_linux.c
> index 0e26d5f..495ee12 100644
> --- a/drivers/staging/rtl8712/recv_linux.c
> +++ b/drivers/staging/rtl8712/recv_linux.c
> @@ -117,13 +117,8 @@ void r8712_recv_indicatepkt(struct _adapter *padapter,
>   	if (skb == NULL)
>   		goto _recv_indicatepkt_drop;
>   	skb->data = precv_frame->u.hdr.rx_data;
> -#ifdef NET_SKBUFF_DATA_USES_OFFSET
> -	skb->tail = (sk_buff_data_t)(precv_frame->u.hdr.rx_tail -
> -		     precv_frame->u.hdr.rx_head);
> -#else
> -	skb->tail = (sk_buff_data_t)precv_frame->u.hdr.rx_tail;
> -#endif
>   	skb->len = precv_frame->u.hdr.len;
> +	skb_set_tail_pointer(skb, skb->len);
>   	if ((pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1))
>   		skb->ip_summed = CHECKSUM_UNNECESSARY;
>   	else
>
>
>

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html