> -----Original Message-----
> From: Chaitanya Babu Talluri <tallurix.chaitanya.b...@intel.com>
> Sent: Friday, March 22, 2019 1:22 PM
> To: dev@dpdk.org
> Cc: reshma.pat...@intel.com; jananeex.m.parthasara...@intel.com; Rasesh
> Mody <rm...@marvell.com>; Shahed Shaikh <shsha...@marvell.com>;
> beilei.x...@intel.com; qi.z.zh...@intel.com; Chaitanya Babu Talluri
> <tallurix.chaitanya.b...@intel.com>; sta...@dpdk.org
> Subject: [EXT] [PATCH v8] drivers/net: fix possible overflow using strlcat
>
> strcat does not check the destination length and there might be chances of
> string overflow so instead of strcat, strlcat is used.
>
> Fixes: 540a211084 ("bnx2x: driver core")
> Fixes: e163c18a15 ("net/i40e: update ptype and pctype info")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Chaitanya Babu Talluri <tallurix.chaitanya.b...@intel.com>
> ---
> v8: Added missing semi-colon.
> v7: Corrected title.
> v6: Updated title.
> v5: Removed strcat.
> v4: Corrected usage of strlcat.
> v3: Instead of strncat, used strlcat.
> v2: Instead of strncat, used snprintf.
> ---
> drivers/net/bnx2x/bnx2x.c | 5 +++--
> drivers/net/i40e/i40e_ethdev.c | 4 ++--
> 2 files changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/bnx2x/bnx2x.c b/drivers/net/bnx2x/bnx2x.c index
> 26b3828e8..ab092e23f 100644
> --- a/drivers/net/bnx2x/bnx2x.c
> +++ b/drivers/net/bnx2x/bnx2x.c
> @@ -25,6 +25,7 @@
> #include <sys/stat.h>
> #include <fcntl.h>
> #include <zlib.h>
> +#include <rte_string_fns.h>
>
> #define BNX2X_PMD_VER_PREFIX "BNX2X PMD"
> #define BNX2X_PMD_VERSION_MAJOR 1
> @@ -11741,13 +11742,13 @@ static const char *get_bnx2x_flags(uint32_t
> flags)
>
> for (i = 0; i < 5; i++)
> if (flags & (1 << i)) {
> - strcat(flag_str, flag[i]);
> + strlcat(flag_str, flag[i], sizeof(flag_str));
> flags ^= (1 << i);
> }
> if (flags) {
> static char unknown[BNX2X_INFO_STR_MAX];
> snprintf(unknown, 32, "Unknown flag mask %x", flags);
> - strcat(flag_str, unknown);
> + strlcat(flag_str, unknown, sizeof(flag_str));
> }
> return flag_str;
> }
For bnx2x PMD changes -
Acked-by: Shahed Shaikh <shsha...@marvell.com>
Thanks,
Shahed
