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From: Andy Green <andy@warmcat.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v3 01/40] drivers/bus/pci: fix strncpy dangerous code
Date: Thu, 10 May 2018 10:46:24 +0800	[thread overview]
Message-ID: <152592038422.119328.16395813685185975986.stgit@localhost.localdomain> (raw)
In-Reply-To: <152591991920.119328.14523975619615362920.stgit@localhost.localdomain>

In function ‘pci_get_kernel_driver_by_path’,
    inlined from ‘pci_scan_one.isra.1’ at /home/agreen/projects/dpdk/
	drivers/bus/pci/linux/pci.c:317:8:
/home/agreen/projects/dpdk/drivers/bus/pci/linux/pci.c:57:3: error:
‘strncpy’ specified bound depends on the length of the source argument
[-Werror=stringop-overflow=]
   strncpy(dri_name, name + 1, strlen(name + 1) + 1);

Signed-off-by: Andy Green <andy@warmcat.com>
---
 drivers/bus/pci/linux/pci.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c
index 4630a8057..a73ee49c2 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -54,7 +54,7 @@ pci_get_kernel_driver_by_path(const char *filename, char *dri_name)
 
 	name = strrchr(path, '/');
 	if (name) {
-		strncpy(dri_name, name + 1, strlen(name + 1) + 1);
+		strlcpy(dri_name, name + 1, sizeof(dri_name));
 		return 0;
 	}
 

  reply	other threads:[~2018-05-10  2:46 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-10  2:46 [dpdk-dev] [PATCH v3 00/40] Fix build on gcc8 and various bugs Andy Green
2018-05-10  2:46 ` Andy Green [this message]
2018-05-10 12:55   ` [dpdk-dev] [PATCH v3 01/40] drivers/bus/pci: fix strncpy dangerous code De Lara Guarch, Pablo
2018-05-10  2:46 ` [dpdk-dev] [PATCH v3 02/40] drivers/bus/dpaa: fix inconsistent struct alignment Andy Green
2018-05-10  2:46 ` [dpdk-dev] [PATCH v3 03/40] drivers/net/axgbe: fix broken eeprom string comp Andy Green
2018-05-10  2:46 ` [dpdk-dev] [PATCH v3 04/40] drivers/net/nfp/nfpcore: fix strncpy misuse Andy Green
2018-05-10  2:46 ` [dpdk-dev] [PATCH v3 05/40] drivers/net/nfp/nfpcore: fix off-by-one and no NUL on strncpy use Andy Green
2018-05-10  2:46 ` [dpdk-dev] [PATCH v3 06/40] drivers/net/nfp: don't memcpy out of source range Andy Green
2018-05-10  2:46 ` [dpdk-dev] [PATCH v3 07/40] drivers/net/nfp: fix buffer overflow in fw_name Andy Green
2018-05-10  2:46 ` [dpdk-dev] [PATCH v3 08/40] drivers/net/qede: fix strncpy constant and NUL Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 09/40] drivers/net/qede: fix broken strncpy Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 10/40] drivers/net/sfc: fix strncpy length Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 11/40] drivers/net/sfc: fix strncpy size and NUL Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 12/40] drivers/net/vdev: readlink inputs cannot be aliased Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 13/40] drivers/net/vdev: fix 3 x strncpy misuse Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 14/40] app/test-pmd: can't find include Andy Green
2018-05-10 13:50   ` De Lara Guarch, Pablo
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 15/40] app/proc-info: fix sprintf overrun bug Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 16/40] app/test-bbdev: test-bbdev: strcpy ok for allocated string Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 17/40] app/test-bbdev: " Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 18/40] rte_common.h: cast gcc builtin result to avoid complaints Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 19/40] rte_memcpy.h: explicit tmp cast Andy Green
2018-05-10  2:47 ` [dpdk-dev] [PATCH v3 20/40] lib/librte_eal/common/include/rte_lcore.h: explicit cast for signed change Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 21/40] /lib/librte_eal/common/include/rte_random.h: stage cast from uint64_t to long Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 22/40] rte_spinlock.h: stack declarations before code Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 23/40] rte_ring_generic.h: " Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 24/40] rte_ring.h: remove signed type flipflopping Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 25/40] rte_dev.h: stack declaration at top of own basic block Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 26/40] rte_mbuf.h: avoid truncation warnings from inadvertant int16_t to int promotion Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 27/40] rte_mbuf.h: explicit casts for flipping between int16_t and uint16_t Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 28/40] rte_mbuf.h: make sure RTE_MIN compares same types Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 29/40] rte_mbuf.h: explicit cast restricting ptrdiff to uint16_t Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 30/40] rte_mbuf.h: explicit cast for size_t to uint32_t Andy Green
2018-05-10  2:48 ` [dpdk-dev] [PATCH v3 31/40] rte_mbuf.h: explicit casts to uint16_t to avoid truncation warnings Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 32/40] rte_byteorder.h: explicit cast for return promotion Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 33/40] rte_ether.h: explicit cast avoiding truncation warning Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 34/40] rte_ether.h: stack vars declared at top of function Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 35/40] rte_ethdev.h: fix sign and scope of temp var Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 36/40] rte_ethdev.h: explicit cast for return type Andy Green
2018-05-10 19:18   ` Stephen Hemminger
2018-05-10 23:48     ` Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 37/40] rte_ethdev.h: explicit cast for truncation Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 38/40] rte_hash_crc.h: stack vars declared at top of function Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 39/40] rte_hash_crc.h: explicit casts for truncation Andy Green
2018-05-10  2:49 ` [dpdk-dev] [PATCH v3 40/40] rte_string_fns.h: explicit cast for int return to size_t Andy Green
2018-05-10 19:17   ` Stephen Hemminger
2018-05-11  0:13     ` Andy Green
2018-05-10  6:12 ` [dpdk-dev] [PATCH v3 00/40] Fix build on gcc8 and various bugs Jerin Jacob
2018-05-10  7:11   ` Andy Green
2018-05-10  9:19     ` Jerin Jacob
2018-05-10  6:17 ` Jerin Jacob
2018-05-10  6:46   ` Andy Green
2018-05-10  9:11     ` Jerin Jacob
2018-05-10 11:44       ` Andy Green
2018-05-10 11:58         ` Jerin Jacob
2018-05-10 12:13           ` Andy Green
2018-05-10 15:01             ` Stephen Hemminger
2018-05-11  0:29               ` Andy Green
2018-05-11  1:37                 ` Andy Green
2018-05-13 13:58                 ` Thomas Monjalon
2018-05-10  9:52 ` De Lara Guarch, Pablo
2018-05-10 11:57   ` Andy Green
2018-05-10 10:21 ` Luca Boccassi
2018-05-10 12:23   ` Andy Green
2018-05-10 12:35     ` Luca Boccassi
2018-05-10 13:36       ` Bruce Richardson
2018-05-10 13:49         ` Luca Boccassi
2018-05-10 13:53           ` Andy Green
2018-05-10 14:20             ` Andy Green
2018-05-10 13:59         ` Andy Green

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