DPDK patches and discussions
 help / color / mirror / Atom feed
From: Bruce Richardson <bruce.richardson@intel.com>
To: Andy Green <andy@warmcat.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 05/18] drivers: net: nfp: nfpcore: fix strncpy misuse
Date: Tue, 8 May 2018 09:58:36 +0100
Message-ID: <20180508085835.GB20636@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <152575379320.56689.8382051384798098704.stgit@localhost.localdomain>

On Tue, May 08, 2018 at 12:29:53PM +0800, Andy Green wrote:
> 
> ---
>  drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c b/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c
> index 4e6c66624..9f6704a7f 100644
> --- a/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c
> +++ b/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c
> @@ -846,7 +846,8 @@ nfp6000_init(struct nfp_cpp *cpp, const char *devname)
>  
>  
>  	memset(desc->busdev, 0, BUSDEV_SZ);
> -	strncpy(desc->busdev, devname, strlen(devname));
> +	strncpy(desc->busdev, devname, sizeof(desc->busdev) - 1);
> +	desc->busdev[sizeof(desc->busdev) - 1] = '\0';
>  
>  	ret = nfp_acquire_process_lock(desc);
>  	if (ret)
As with previous patch, a better fix is to use strlcpy. This would apply to
just about all uses of strncpy in the code.

/Bruce

  reply	other threads:[~2018-05-08  8:58 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-08  4:29 [dpdk-dev] [PATCH 00/18] Fix build on gcc8 and various bugs Andy Green
2018-05-08  4:29 ` [dpdk-dev] [PATCH 01/18] lib: ret_table: workaround hash function cast error Andy Green
2018-05-08  4:29 ` [dpdk-dev] [PATCH 02/18] drivers: bus: pci: fix strncpy dangerous code Andy Green
2018-05-08  8:57   ` Bruce Richardson
2018-05-08  4:29 ` [dpdk-dev] [PATCH 03/18] drivers: bus: dpaa: fix inconsistent struct alignment Andy Green
2018-05-08  4:29 ` [dpdk-dev] [PATCH 04/18] drivers: net: axgbe: fix broken eeprom string comp Andy Green
2018-05-08  4:29 ` [dpdk-dev] [PATCH 05/18] drivers: net: nfp: nfpcore: fix strncpy misuse Andy Green
2018-05-08  8:58   ` Bruce Richardson [this message]
2018-05-08  9:00     ` Andy Green
2018-05-08  9:03       ` Bruce Richardson
2018-05-08  4:29 ` [dpdk-dev] [PATCH 06/18] drivers: net: nfp: nfpcore fix off-by-one and no NUL on strncpy use Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 07/18] drivers: net: nfp: don't memcpy out of source range Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 08/18] drivers: net: nfp: fix buffer overflow in fw_name Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 09/18] drivers: net: qede: fix strncpy constant and NUL Andy Green
2018-05-08 17:59   ` Shaikh, Shahed
2018-05-08 19:53     ` Bruce Richardson
2018-05-08 20:02       ` Shaikh, Shahed
2018-05-08 22:07         ` Andy Green
2018-05-08 23:33           ` Shaikh, Shahed
2018-05-08  4:30 ` [dpdk-dev] [PATCH 10/18] drivers: net: qede: fix broken strncpy Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 11/18] drivers:net:sfc: fix strncpy length Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 12/18] drivers: net: sfc: fix another strncpy size and NUL Andy Green
2018-05-08  7:36   ` Andrew Rybchenko
2018-05-08  8:18     ` Andy Green
2018-05-08  9:02       ` Bruce Richardson
2018-05-08  9:08       ` Andrew Rybchenko
2018-05-08  4:30 ` [dpdk-dev] [PATCH 13/18] drivers: net: vdev: readlink inputs cannot be aliased Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 14/18] drivers: net: vdev: fix 3 x strncpy misuse Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 15/18] test-pmd: can't find include Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 16/18] app: fix sprintf overrun bug Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 17/18] app: test-bbdev: strcpy ok for allocated string Andy Green
2018-05-08  4:30 ` [dpdk-dev] [PATCH 18/18] app: test-bbdev: strcpy ok for allocated string 2 Andy Green

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180508085835.GB20636@bricha3-MOBL.ger.corp.intel.com \
    --to=bruce.richardson@intel.com \
    --cc=andy@warmcat.com \
    --cc=dev@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git