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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Eric Dumazet <edumazet@google.com>,
	Florian Westphal <fw@strlen.de>,
	"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.14 13/52] tcp: remove buggy call to tcp_v6_restore_cb()
Date: Fri, 15 Dec 2017 10:51:50 +0100	[thread overview]
Message-ID: <20171215092309.218925325@linuxfoundation.org> (raw)
In-Reply-To: <20171215092308.500651185@linuxfoundation.org>

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>


[ Upstream commit 3016dad75b48279e579117ee3ed566ba90a3b023 ]

tcp_v6_send_reset() expects to receive an skb with skb->cb[] layout as
used in TCP stack.
MD5 lookup uses tcp_v6_iif() and tcp_v6_sdif() and thus
TCP_SKB_CB(skb)->header.h6

This patch probably fixes RST packets sent on behalf of a timewait md5
ipv6 socket.

Before Florian patch, tcp_v6_restore_cb() was needed before jumping to
no_tcp_socket label.

Fixes: 271c3b9b7bda ("tcp: honour SO_BINDTODEVICE for TW_RST case too")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/tcp_ipv6.c |    1 -
 1 file changed, 1 deletion(-)

--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1585,7 +1585,6 @@ do_time_wait:
 		tcp_v6_timewait_ack(sk, skb);
 		break;
 	case TCP_TW_RST:
-		tcp_v6_restore_cb(skb);
 		tcp_v6_send_reset(sk, skb);
 		inet_twsk_deschedule_put(inet_twsk(sk));
 		goto discard_it;

  parent reply	other threads:[~2017-12-15  9:53 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-15  9:51 [PATCH 4.14 00/52] 4.14.7-stable review Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 02/52] net: thunderx: Fix TCP/UDP checksum offload for IPv6 pkts Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 03/52] net: thunderx: Fix TCP/UDP checksum offload for IPv4 pkts Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 05/52] s390/qeth: fix early exit from error path Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 06/52] tipc: fix memory leak in tipc_accept_from_sock() Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 07/52] vhost: fix skb leak in handle_rx() Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 09/52] sit: update frag_off info Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 10/52] tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb() Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 11/52] packet: fix crash in fanout_demux_rollover() Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 12/52] net/packet: fix a race in packet_bind() and packet_notifier() Greg Kroah-Hartman
2017-12-15  9:51 ` Greg Kroah-Hartman [this message]
2017-12-15  9:51 ` [PATCH 4.14 16/52] stmmac: reset last TSO segment size after device open Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 18/52] s390/qeth: build max size GSO skbs on L2 devices Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 19/52] s390/qeth: fix thinko in IPv4 multicast address tracking Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 20/52] s390/qeth: fix GSO throughput regression Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 21/52] tcp: use IPCB instead of TCP_SKB_CB in inet_exact_dif_match() Greg Kroah-Hartman
2017-12-15  9:51 ` [PATCH 4.14 22/52] tipc: call tipc_rcv() only if bearer is up in tipc_udp_recv() Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 23/52] tcp: use current time in tcp_rcv_space_adjust() Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 24/52] net: sched: cbq: create block for q->link.block Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 25/52] tap: free skb if flags error Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 26/52] tcp: when scheduling TLP, time of RTO should account for current ACK Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 27/52] tun: free skb in early errors Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 28/52] net: ipv6: Fixup device for anycast routes during copy Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 29/52] tun: fix rcu_read_lock imbalance in tun_build_skb Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 30/52] net: accept UFO datagrams from tuntap and packet Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 31/52] net: openvswitch: datapath: fix data type in queue_gso_packets Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 32/52] cls_bpf: dont decrement nets refcount when offload fails Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 33/52] sctp: use right member as the param of list_for_each_entry Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 34/52] ipmi: Stop timers before cleaning up the module Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 35/52] usb: gadget: ffs: Forbid usb_ep_alloc_request from sleeping Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 36/52] fcntl: dont cap l_start and l_end values for F_GETLK64 in compat syscall Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 37/52] fix kcm_clone() Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 38/52] KVM: arm/arm64: vgic-its: Preserve the revious read from the pending table Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 39/52] kbuild: do not call cc-option before KBUILD_CFLAGS initialization Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 40/52] powerpc/powernv/idle: Round up latency and residency values Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 41/52] ipvlan: fix ipv6 outbound device Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 42/52] ide: ide-atapi: fix compile error with defining macro DEBUG Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 43/52] blk-mq: Avoid that request queue removal can trigger list corruption Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 44/52] nvmet-rdma: update queue list during ib_device removal Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 45/52] audit: Allow auditd to set pid to 0 to end auditing Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 46/52] audit: ensure that audit=1 actually enables audit for PID 1 Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 47/52] dm raid: fix panic when attempting to force a raid to sync Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 48/52] md: free unused memory after bitmap resize Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 49/52] RDMA/cxgb4: Annotate r2 and stag as __be32 Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 50/52] x86/intel_rdt: Fix potential deadlock during resctrl unmount Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 51/52] media: dvb-core: always call invoke_release() in fe_free() Greg Kroah-Hartman
2017-12-15  9:52 ` [PATCH 4.14 52/52] dvb_frontend: dont use-after-free the frontend struct Greg Kroah-Hartman
2017-12-15 10:09 ` [PATCH 4.14 00/52] 4.14.7-stable review Nikola Ciprich
2017-12-15 13:07   ` Greg Kroah-Hartman
2017-12-15 17:41 ` Guenter Roeck
2017-12-15 18:27   ` Greg Kroah-Hartman
2017-12-15 21:12 ` Shuah Khan
2017-12-15 21:32   ` Greg Kroah-Hartman
2017-12-16  5:28 ` Naresh Kamboju
2017-12-16  8:23   ` Greg Kroah-Hartman

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