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Willem de Bruijn authoredMulticast and broadcast packets can be looped from egress to ingress pre segmentation with dev_loopback_xmit. That function unconditionally sets ip_summed to CHECKSUM_UNNECESSARY. udp_rcv_segment segments gso packets in the udp rx path. Segmentation usually executes on egress, and does not expect packets of this type. __udp_gso_segment interprets !CHECKSUM_PARTIAL as CHECKSUM_NONE. But the offsets are not correct for gso_make_checksum. UDP GSO packets are of type CHECKSUM_PARTIAL, with their uh->check set to the correct pseudo header checksum. Reset ip_summed to this type. (CHECKSUM_PARTIAL is allowed on ingress, see comments in skbuff.h) Reported-by:
syzbot <syzkaller@googlegroups.com>
Fixes: cf329aa4 ("udp: cope with UDP GRO packet misdirection")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>Willem de Bruijn authoredMulticast and broadcast packets can be looped from egress to ingress pre segmentation with dev_loopback_xmit. That function unconditionally sets ip_summed to CHECKSUM_UNNECESSARY. udp_rcv_segment segments gso packets in the udp rx path. Segmentation usually executes on egress, and does not expect packets of this type. __udp_gso_segment interprets !CHECKSUM_PARTIAL as CHECKSUM_NONE. But the offsets are not correct for gso_make_checksum. UDP GSO packets are of type CHECKSUM_PARTIAL, with their uh->check set to the correct pseudo header checksum. Reset ip_summed to this type. (CHECKSUM_PARTIAL is allowed on ingress, see comments in skbuff.h) Reported-by:
syzbot <syzkaller@googlegroups.com>
Fixes: cf329aa4 ("udp: cope with UDP GRO packet misdirection")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
patch_realtek.c 167.91 KiB
/*
* Universal Interface for Intel High Definition Audio Codec
*
* HD audio interface patch for Realtek ALC codecs
*
* Copyright (c) 2004 Kailang Yang <kailang@realtek.com.tw>
* PeiSen Hou <pshou@realtek.com.tw>
* Takashi Iwai <tiwai@suse.de>
* Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
*
* This driver is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This driver is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/jack.h>
#include "hda_codec.h"
#include "hda_local.h"
#include "hda_beep.h"
#include "hda_jack.h"
/* unsol event tags */
#define ALC_FRONT_EVENT 0x01
#define ALC_DCVOL_EVENT 0x02
#define ALC_HP_EVENT 0x04
#define ALC_MIC_EVENT 0x08
/* for GPIO Poll */
#define GPIO_MASK 0x03
/* extra amp-initialization sequence types */
enum {
ALC_INIT_NONE,
ALC_INIT_DEFAULT,
ALC_INIT_GPIO1,
ALC_INIT_GPIO2,
ALC_INIT_GPIO3,
};
struct alc_customize_define {
unsigned int sku_cfg;
unsigned char port_connectivity;
unsigned char check_sum;
unsigned char customization;
unsigned char external_amp;
unsigned int enable_pcbeep:1;
unsigned int platform_type:1;
unsigned int swap:1;
unsigned int override:1;
unsigned int fixup:1; /* Means that this sku is set by driver, not read from hw */
};
struct alc_fixup;