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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Guangbin Huang <huangguangbin2@huawei.com>,
	Huazhong Tan <tanhuazhong@huawei.com>,
	"David S . Miller" <davem@davemloft.net>,
	Sasha Levin <sashal@kernel.org>,
	netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 47/50] net: hns3: fix a copying IPv6 address error in hclge_fd_get_flow_tuples()
Date: Sat, 22 Feb 2020 21:22:32 -0500	[thread overview]
Message-ID: <20200223022235.1404-47-sashal@kernel.org> (raw)
In-Reply-To: <20200223022235.1404-1-sashal@kernel.org>

From: Guangbin Huang <huangguangbin2@huawei.com>

[ Upstream commit 47327c9315b2f3ae4ab659457977a26669631f20 ]

The IPv6 address defined in struct in6_addr is specified as
big endian, but there is no specified endian in struct
hclge_fd_rule_tuples, so it  will cause a problem if directly
use memcpy() to copy ipv6 address between these two structures
since this field in struct hclge_fd_rule_tuples is little endian.

This patch fixes this problem by using be32_to_cpu() to convert
endian of IPv6 address of struct in6_addr before copying.

Fixes: d93ed94fbeaf ("net: hns3: add aRFS support for PF")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c   | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 0c3c63aed2c06..c01cf8ef69df9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -6003,6 +6003,9 @@ static int hclge_get_all_rules(struct hnae3_handle *handle,
 static void hclge_fd_get_flow_tuples(const struct flow_keys *fkeys,
 				     struct hclge_fd_rule_tuples *tuples)
 {
+#define flow_ip6_src fkeys->addrs.v6addrs.src.in6_u.u6_addr32
+#define flow_ip6_dst fkeys->addrs.v6addrs.dst.in6_u.u6_addr32
+
 	tuples->ether_proto = be16_to_cpu(fkeys->basic.n_proto);
 	tuples->ip_proto = fkeys->basic.ip_proto;
 	tuples->dst_port = be16_to_cpu(fkeys->ports.dst);
@@ -6011,12 +6014,12 @@ static void hclge_fd_get_flow_tuples(const struct flow_keys *fkeys,
 		tuples->src_ip[3] = be32_to_cpu(fkeys->addrs.v4addrs.src);
 		tuples->dst_ip[3] = be32_to_cpu(fkeys->addrs.v4addrs.dst);
 	} else {
-		memcpy(tuples->src_ip,
-		       fkeys->addrs.v6addrs.src.in6_u.u6_addr32,
-		       sizeof(tuples->src_ip));
-		memcpy(tuples->dst_ip,
-		       fkeys->addrs.v6addrs.dst.in6_u.u6_addr32,
-		       sizeof(tuples->dst_ip));
+		int i;
+
+		for (i = 0; i < IPV6_SIZE; i++) {
+			tuples->src_ip[i] = be32_to_cpu(flow_ip6_src[i]);
+			tuples->dst_ip[i] = be32_to_cpu(flow_ip6_dst[i]);
+		}
 	}
 }
 
-- 
2.20.1


  parent reply	other threads:[~2020-02-23  2:30 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-23  2:21 [PATCH AUTOSEL 5.4 01/50] ipmi:ssif: Handle a possible NULL pointer reference Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 02/50] drm/msm: Set dma maximum segment size for mdss Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 03/50] sched/core: Don't skip remote tick for idle CPUs Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 04/50] timers/nohz: Update NOHZ load in remote tick Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 05/50] sched/fair: Prevent unlimited runtime on throttled group Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 06/50] dax: pass NOWAIT flag to iomap_apply Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 07/50] mac80211: consider more elements in parsing CRC Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 08/50] cfg80211: check wiphy driver existence for drvinfo report Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 09/50] s390/zcrypt: fix card and queue total counter wrap Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 10/50] qmi_wwan: re-add DW5821e pre-production variant Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 11/50] qmi_wwan: unconditionally reject 2 ep interfaces Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 12/50] NFSv4: Fix races between open and dentry revalidation Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 13/50] perf/smmuv3: Use platform_get_irq_optional() for wired interrupt Sasha Levin
2020-02-23  2:21 ` [PATCH AUTOSEL 5.4 14/50] arm/ftrace: Fix BE text poking Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 15/50] sched/psi: Fix OOB write when writing 0 bytes to PSI files Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 16/50] perf/x86/intel: Add Elkhart Lake support Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 17/50] perf/x86/cstate: Add Tremont support Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 18/50] perf/x86/msr: " Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 19/50] ceph: do not execute direct write in parallel if O_APPEND is specified Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 20/50] ARM: dts: sti: fixup sound frame-inversion for stihxxx-b2120.dtsi Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 21/50] drm/amd/display: Do not set optimized_require to false after plane disable Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 22/50] RDMA/siw: Remove unwanted WARN_ON in siw_cm_llp_data_ready() Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 23/50] drm/amd/display: Check engine is not NULL before acquiring Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 24/50] drm/amd/display: Limit minimum DPPCLK to 100MHz Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 25/50] drm/amd/display: Add initialitions for PLL2 clock source Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 26/50] amdgpu: Prevent build errors regarding soft/hard-float FP ABI tags Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 27/50] soc/tegra: fuse: Fix build with Tegra194 configuration Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 28/50] i40e: Fix the conditional for i40e_vc_validate_vqs_bitmaps Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 29/50] net: ena: fix potential crash when rxfh key is NULL Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 30/50] net: ena: fix uses of round_jiffies() Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 31/50] net: ena: add missing ethtool TX timestamping indication Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 32/50] net: ena: fix incorrect default RSS key Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 33/50] net: ena: rss: do not allocate key when not supported Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 34/50] net: ena: rss: fix failure to get indirection table Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 35/50] net: ena: rss: store hash function as values and not bits Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 36/50] net: ena: fix incorrectly saving queue numbers when setting RSS indirection table Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 37/50] net: ena: fix corruption of dev_idx_to_host_tbl Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 38/50] net: ena: ethtool: use correct value for crc32 hash Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 39/50] net: ena: ena-com.c: prevent NULL pointer dereference Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 40/50] enic: prevent waking up stopped tx queues over watchdog reset Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 41/50] ice: update Unit Load Status bitmask to check after reset Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 42/50] cifs: Fix mode output in debugging statements Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 43/50] bcache: ignore pending signals when creating gc and allocator thread Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 44/50] cfg80211: add missing policy for NL80211_ATTR_STATUS_CODE Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 45/50] mac80211: fix wrong 160/80+80 MHz setting Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 46/50] net: hns3: add management table after IMP reset Sasha Levin
2020-02-23  2:22 ` Sasha Levin [this message]
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 48/50] nvme/tcp: fix bug on double requeue when send fails Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 49/50] nvme: prevent warning triggered by nvme_stop_keep_alive Sasha Levin
2020-02-23  2:22 ` [PATCH AUTOSEL 5.4 50/50] nvme/pci: move cqe check after device shutdown Sasha Levin

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