ip_queue_xmit() assumes the skb it has to transmit is attached to an inet socket. Commit31c70d5956("l2tp: keep original skb ownership") changed l2tp to not change skb ownership and thus broke this assumption. One fix is to add a new 'struct sock *sk' parameter to ip_queue_xmit(), so that we do not assume skb->sk points to the socket used by l2tp tunnel. Fixes:31c70d5956("l2tp: keep original skb ownership") Reported-by: Zhan Jianyu <nasa4836@gmail.com> Tested-by: Zhan Jianyu <nasa4836@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
		
			
				
	
	
		
			46 lines
		
	
	
	
		
			1.4 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			46 lines
		
	
	
	
		
			1.4 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * NET		Generic infrastructure for INET6 connection oriented protocols.
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 *
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 * Authors:	Many people, see the TCPv6 sources
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 *
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 * 		From code originally in TCPv6
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 *
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 *		This program is free software; you can redistribute it and/or
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 *		modify it under the terms of the GNU General Public License
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 *		as published by the Free Software Foundation; either version
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 *		2 of the License, or (at your option) any later version.
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 */
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#ifndef _INET6_CONNECTION_SOCK_H
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#define _INET6_CONNECTION_SOCK_H
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#include <linux/types.h>
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struct in6_addr;
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struct inet_bind_bucket;
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struct request_sock;
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struct sk_buff;
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struct sock;
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struct sockaddr;
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int inet6_csk_bind_conflict(const struct sock *sk,
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			    const struct inet_bind_bucket *tb, bool relax);
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struct dst_entry *inet6_csk_route_req(struct sock *sk, struct flowi6 *fl6,
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				      const struct request_sock *req);
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struct request_sock *inet6_csk_search_req(const struct sock *sk,
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					  struct request_sock ***prevp,
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					  const __be16 rport,
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					  const struct in6_addr *raddr,
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					  const struct in6_addr *laddr,
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					  const int iif);
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void inet6_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req,
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				    const unsigned long timeout);
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void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
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int inet6_csk_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl);
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struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu);
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#endif /* _INET6_CONNECTION_SOCK_H */
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