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Date: Thu, 9 Apr 2015 09:08:43 +0800 From: Zefan Li <lizefan@...wei.com> To: Tim Niemeyer <tim.niemeyer@...science.de> CC: <stable@...r.kernel.org>, Jaganath Kanakkassery <jaganath.k@...sung.com>, Chan-Yeol Park <chanyeol.park@...sung.com>, Gustavo Padovan <gustavo.padovan@...labora.co.uk>, Jianguo Wu <wujianguo@...wei.com>, "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>, Marcel Holtmann <marcel@...tmann.org>, Gustavo Padovan <gustavo@...ovan.org>, Johan Hedberg <johan.hedberg@...il.com>, "David S. Miller" <davem@...emloft.net>, <linux-bluetooth@...r.kernel.org>, <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org> Subject: Re: [3.4 PATCH] Bluetooth: Fix invalid length check in l2cap_information_rsp() On 2015/3/30 17:27, Tim Niemeyer wrote: > first backport commit 6ec88fcb4aa2c33fe2fe2a23c576a7e2581c5c3d changes > l2cap_move_channel_confirm_rsp and not the l2cap_information_rsp. So > revert this and fix at the correct position. > > commit 3f6fa3d489e127ca5a5b298eabac3ff5dbe0e112 upstream. > > The length check is invalid since the length varies with type of > info response. > > This was introduced by the commit cb3b3152b2f5939d67005cff841a1ca748b19888 > > Because of this, l2cap info rsp is not handled and command reject is sent. > >> ACL data: handle 11 flags 0x02 dlen 16 > L2CAP(s): Info rsp: type 2 result 0 > Extended feature mask 0x00b8 > Enhanced Retransmission mode > Streaming mode > FCS Option > Fixed Channels > < ACL data: handle 11 flags 0x00 dlen 10 > L2CAP(s): Command rej: reason 0 > Command not understood > > Cc: stable@...r.kernel.org > Signed-off-by: Jaganath Kanakkassery <jaganath.k@...sung.com> > Signed-off-by: Chan-Yeol Park <chanyeol.park@...sung.com> > Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.co.uk> > Cc: Jianguo Wu <wujianguo@...wei.com> > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> > Signed-off-by: Tim Niemeyer <tim.niemeyer@...science.de> > Acked-by: Johan Hedberg <johan.hedberg@...el.com> > --- > Patch for 3.4-stable. > Queued up for 3.4. Thanks! -- 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
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