e41f054847
Commit4b2e6877b8("tipc: Fix namespace violation in tipc_sk_fill_sock_diag") tried to fix the crash but failed, the crash is still 100% reproducible with it. In tipc_sk_fill_sock_diag(), skb is the diag dump we are filling, it is not correct to retrieve its NETLINK_CB(), instead, like other protocol diag, we should use NETLINK_CB(cb->skb).sk here. Reported-by: <syzbot+326e587eff1074657718@syzkaller.appspotmail.com> Fixes:4b2e6877b8("tipc: Fix namespace violation in tipc_sk_fill_sock_diag") Fixes:c30b70deb5(tipc: implement socket diagnostics for AF_TIPC) Cc: GhantaKrishnamurthy MohanKrishna <mohan.krishna.ghanta.krishnamurthy@ericsson.com> Cc: Jon Maloy <jon.maloy@ericsson.com> Cc: Ying Xue <ying.xue@windriver.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
72 lines
3.1 KiB
C
72 lines
3.1 KiB
C
/* net/tipc/socket.h: Include file for TIPC socket code
|
|
*
|
|
* Copyright (c) 2014-2016, Ericsson AB
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _TIPC_SOCK_H
|
|
#define _TIPC_SOCK_H
|
|
|
|
#include <net/sock.h>
|
|
#include <net/genetlink.h>
|
|
|
|
/* Compatibility values for deprecated message based flow control */
|
|
#define FLOWCTL_MSG_WIN 512
|
|
#define FLOWCTL_MSG_LIM ((FLOWCTL_MSG_WIN * 2 + 1) * SKB_TRUESIZE(MAX_MSG_SIZE))
|
|
|
|
#define FLOWCTL_BLK_SZ 1024
|
|
|
|
/* Socket receive buffer sizes */
|
|
#define RCVBUF_MIN (FLOWCTL_BLK_SZ * 512)
|
|
#define RCVBUF_DEF (FLOWCTL_BLK_SZ * 1024 * 2)
|
|
#define RCVBUF_MAX (FLOWCTL_BLK_SZ * 1024 * 16)
|
|
|
|
struct tipc_sock;
|
|
|
|
int tipc_socket_init(void);
|
|
void tipc_socket_stop(void);
|
|
void tipc_sk_rcv(struct net *net, struct sk_buff_head *inputq);
|
|
void tipc_sk_mcast_rcv(struct net *net, struct sk_buff_head *arrvq,
|
|
struct sk_buff_head *inputq);
|
|
void tipc_sk_reinit(struct net *net);
|
|
int tipc_sk_rht_init(struct net *net);
|
|
void tipc_sk_rht_destroy(struct net *net);
|
|
int tipc_nl_sk_dump(struct sk_buff *skb, struct netlink_callback *cb);
|
|
int tipc_nl_publ_dump(struct sk_buff *skb, struct netlink_callback *cb);
|
|
int tipc_sk_fill_sock_diag(struct sk_buff *skb, struct netlink_callback *cb,
|
|
struct tipc_sock *tsk, u32 sk_filter_state,
|
|
u64 (*tipc_diag_gen_cookie)(struct sock *sk));
|
|
int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb,
|
|
int (*skb_handler)(struct sk_buff *skb,
|
|
struct netlink_callback *cb,
|
|
struct tipc_sock *tsk));
|
|
#endif
|