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From: Andy Green <andy@warmcat.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v5 08/16] net/nfp: don't memcpy out of source range
Date: Sat, 12 May 2018 09:48:24 +0800	[thread overview]
Message-ID: <152608970447.121204.3662840668412795807.stgit@localhost.localdomain> (raw)
In-Reply-To: <152608956198.121204.14844325841690943774.stgit@localhost.localdomain>

/home/agreen/projects/dpdk/drivers/net/nfp/nfp_net.c:669:2:
error: ‘memcpy’ forming offset [5, 6] is out of the bounds
[0, 4] of object ‘tmp’ with type ‘uint32_t’ {aka ‘unsigned
int’} [-Werror=array-bounds]  memcpy(&hw->mac_addr[0],
&tmp, sizeof(struct ether_addr));

Signed-off-by: Andy Green <andy@warmcat.com>
Acked-by: Alejandro Lucero <alejandro.lucero@netronome.com>
Tested-by: Alejandro Lucero <alejandro.lucero@netronome.com>
Fixes: e6decee38209 ("net/nfp: use random MAC address if not configured")
Cc: stable@dpdk.org
---
 drivers/net/nfp/nfp_net.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 78113b41b..f114b1839 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -666,7 +666,7 @@ nfp_net_vf_read_mac(struct nfp_net_hw *hw)
 	uint32_t tmp;
 
 	tmp = rte_be_to_cpu_32(nn_cfg_readl(hw, NFP_NET_CFG_MACADDR));
-	memcpy(&hw->mac_addr[0], &tmp, sizeof(struct ether_addr));
+	memcpy(&hw->mac_addr[0], &tmp, 4);
 
 	tmp = rte_be_to_cpu_32(nn_cfg_readl(hw, NFP_NET_CFG_MACADDR + 4));
 	memcpy(&hw->mac_addr[4], &tmp, 2);

  parent reply	other threads:[~2018-05-12  1:48 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-12  1:47 [dpdk-dev] [PATCH v5 00/16] Fix default build on gcc8.0.1 Andy Green
2018-05-12  1:47 ` [dpdk-dev] [PATCH v5 01/16] devtools/check-git: provide more generic grep pattern Andy Green
2018-05-12  1:47 ` [dpdk-dev] [PATCH v5 02/16] net/nfp: solve buffer overflow Andy Green
2018-05-12  1:47 ` [dpdk-dev] [PATCH v5 03/16] bus/pci: replace strncpy dangerous code Andy Green
2018-05-15  6:12   ` Yao, Lei A
2018-05-15  7:31     ` [dpdk-dev] [PATCH] bus/pci: correct the earlier strlcpy conversion Andy Green
2018-05-15 10:51       ` Andrew Rybchenko
2018-05-15 13:19         ` Thomas Monjalon
2018-05-15  7:32     ` [dpdk-dev] [PATCH v5 03/16] bus/pci: replace strncpy dangerous code Andy Green
2018-05-15  8:18       ` Yao, Lei A
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 04/16] bus/dpaa: solve inconsistent struct alignment Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 05/16] net/axgbe: solve broken eeprom string comp Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 06/16] net/nfp/nfpcore: solve strncpy misuse Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 07/16] net/nfp/nfpcore: off-by-one and no NUL on strncpy use Andy Green
2018-05-12  1:48 ` Andy Green [this message]
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 09/16] net/qede: strncpy length constant and NUL Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 10/16] net/qede: solve broken strncpy Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 11/16] net/sfc: make sure that copied stats name is NUL-terminated Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 12/16] net/vdev_netvsc: readlink inputs cannot be aliased Andy Green
2018-05-13  7:20   ` Matan Azrad
2018-05-14  4:54     ` Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 13/16] net/vdev_netvsc: 3 x strncpy misuse Andy Green
2018-05-13  7:47   ` Matan Azrad
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 14/16] app/proc-info: sprintf overrun bug Andy Green
2018-05-12  1:48 ` [dpdk-dev] [PATCH v5 15/16] app/test-bbdev: strcpy ok for allocated string Andy Green
2018-05-12  1:49 ` [dpdk-dev] [PATCH v5 16/16] " Andy Green
2018-05-14  4:59 ` [dpdk-dev] [PATCH v6 00/16] Fix default build on gcc8.0.1 Andy Green
2018-05-14  4:59   ` [dpdk-dev] [PATCH v6 01/16] devtools/check-git: provide more generic grep pattern Andy Green
2018-05-14 16:28     ` Ferruh Yigit
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 02/16] net/nfp: solve buffer overflow Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 03/16] bus/pci: replace strncpy dangerous code Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 04/16] bus/dpaa: solve inconsistent struct alignment Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 05/16] net/axgbe: solve broken eeprom string comp Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 06/16] net/nfp/nfpcore: solve strncpy misuse Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 07/16] net/nfp/nfpcore: off-by-one and no NUL on strncpy use Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 08/16] net/nfp: don't memcpy out of source range Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 09/16] net/qede: strncpy length constant and NUL Andy Green
2018-05-14 20:16     ` Ferruh Yigit
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 10/16] net/qede: solve broken strncpy Andy Green
2018-05-14 20:20     ` Ferruh Yigit
2018-05-14 21:14       ` Ferruh Yigit
2018-05-14 23:04         ` Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 11/16] net/sfc: make sure that copied stats name is NUL-terminated Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 12/16] net/vdev_netvsc: readlink inputs cannot be aliased Andy Green
2018-05-14  5:00   ` [dpdk-dev] [PATCH v6 13/16] net/vdev_netvsc: convert snprintf to strlcpy Andy Green
2018-05-14  5:01   ` [dpdk-dev] [PATCH v6 14/16] app/proc-info: sprintf overrun bug Andy Green
2018-05-14 20:31     ` Ferruh Yigit
2018-05-14  5:01   ` [dpdk-dev] [PATCH v6 15/16] app/test-bbdev: strcpy ok for allocated string Andy Green
2018-05-14 20:42     ` Ferruh Yigit
2018-05-14 20:56       ` Ferruh Yigit
2018-05-14 21:01         ` Ferruh Yigit
2018-05-14  5:01   ` [dpdk-dev] [PATCH v6 16/16] " Andy Green
2018-05-14 21:03     ` Ferruh Yigit
2018-05-14 21:29   ` [dpdk-dev] [PATCH v6 00/16] Fix default build on gcc8.0.1 Ferruh Yigit

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