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>,
Soheil Hassas Yeganeh <soheil@google.com>,
Yuchung Cheng <ycheng@google.com>,
"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.9 20/33] tcp: call tcp_drop() from tcp_data_queue_ofo()
Date: Fri, 27 Jul 2018 12:09:01 +0200 [thread overview]
Message-ID: <20180727100828.429780690@linuxfoundation.org> (raw)
In-Reply-To: <20180727100827.665729981@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit 8541b21e781a22dce52a74fef0b9bed00404a1cd ]
In order to be able to give better diagnostics and detect
malicious traffic, we need to have better sk->sk_drops tracking.
Fixes: 9f5afeae5152 ("tcp: use an RB tree for ooo receive queue")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/ipv4/tcp_input.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4517,7 +4517,7 @@ coalesce_done:
/* All the bits are present. Drop. */
NET_INC_STATS(sock_net(sk),
LINUX_MIB_TCPOFOMERGE);
- __kfree_skb(skb);
+ tcp_drop(sk, skb);
skb = NULL;
tcp_dsack_set(sk, seq, end_seq);
goto add_sack;
@@ -4536,7 +4536,7 @@ coalesce_done:
TCP_SKB_CB(skb1)->end_seq);
NET_INC_STATS(sock_net(sk),
LINUX_MIB_TCPOFOMERGE);
- __kfree_skb(skb1);
+ tcp_drop(sk, skb1);
goto merge_right;
}
} else if (tcp_try_coalesce(sk, skb1, skb, &fragstolen)) {
next prev parent reply other threads:[~2018-07-27 10:10 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-27 10:08 [PATCH 4.9 00/33] 4.9.116-stable review Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 01/33] MIPS: ath79: fix register address in ath79_ddr_wb_flush() Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 02/33] MIPS: Fix off-by-one in pci_resource_to_user() Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 03/33] ip: hash fragments consistently Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 04/33] ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 05/33] net/mlx4_core: Save the qpn from the input modifier in RST2INIT wrapper Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 06/33] net: skb_segment() should not return NULL Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 07/33] net/mlx5: Adjust clock overflow work period Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 08/33] net/mlx5e: Dont allow aRFS for encapsulated packets Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 09/33] net/mlx5e: Fix quota counting in aRFS expire flow Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 10/33] multicast: do not restore deleted record source filter mode to new one Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 11/33] net: phy: consider PHY_IGNORE_INTERRUPT in phy_start_aneg_priv Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 12/33] rtnetlink: add rtnl_link_state check in rtnl_configure_link Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 13/33] tcp: fix dctcp delayed ACK schedule Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 14/33] tcp: helpers to send special DCTCP ack Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 15/33] tcp: do not cancel delay-AcK on DCTCP special ACK Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 16/33] tcp: do not delay ACK in DCTCP upon CE status change Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 17/33] tcp: free batches of packets in tcp_prune_ofo_queue() Greg Kroah-Hartman
2018-07-27 10:08 ` [PATCH 4.9 18/33] tcp: avoid collapses in tcp_prune_queue() if possible Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 19/33] tcp: detect malicious patterns in tcp_collapse_ofo_queue() Greg Kroah-Hartman
2018-07-27 10:09 ` Greg Kroah-Hartman [this message]
2018-07-27 10:09 ` [PATCH 4.9 21/33] usb: cdc_acm: Add quirk for Castles VEGA3000 Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 22/33] usb: core: handle hub C_PORT_OVER_CURRENT condition Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 23/33] usb: gadget: f_fs: Only return delayed status when len is 0 Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 24/33] driver core: Partially revert "driver core: correct devices shutdown order" Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 25/33] can: xilinx_can: fix RX loop if RXNEMP is asserted without RXOK Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 26/33] can: xilinx_can: fix power management handling Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 27/33] can: xilinx_can: fix recovery from error states not being propagated Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 28/33] can: xilinx_can: fix device dropping off bus on RX overrun Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 29/33] can: xilinx_can: keep only 1-2 frames in TX FIFO to fix TX accounting Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 30/33] can: xilinx_can: fix incorrect clear of non-processed interrupts Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 31/33] can: xilinx_can: fix RX overflow interrupt not being enabled Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 32/33] turn off -Wattribute-alias Greg Kroah-Hartman
2018-07-27 10:09 ` [PATCH 4.9 33/33] exec: avoid gcc-8 warning for get_task_comm Greg Kroah-Hartman
2018-07-27 12:21 ` [PATCH 4.9 00/33] 4.9.116-stable review Nathan Chancellor
2018-07-27 17:29 ` Guenter Roeck
2018-07-27 20:01 ` Shuah Khan
2018-07-28 6:55 ` Naresh Kamboju
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