DPDK patches and discussions
 help / color / mirror / Atom feed
From: Tetsuya Mukawa <mukawa@igel.co.jp>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH] null: Fix dereference before null check in eth_null_copy_tx()
Date: Mon, 16 Mar 2015 12:43:21 +0900
Message-ID: <1426477401-13429-1-git-send-email-mukawa@igel.co.jp> (raw)

This patch fixes potential null pointer access of eth_null_copy_tx().

Reported-by: Mcnamara, John <john.mcnamara@intel.com>
Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
 lib/librte_pmd_null/rte_eth_null.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_pmd_null/rte_eth_null.c b/lib/librte_pmd_null/rte_eth_null.c
index 86307eb..8a20c9d 100644
--- a/lib/librte_pmd_null/rte_eth_null.c
+++ b/lib/librte_pmd_null/rte_eth_null.c
@@ -160,11 +160,12 @@ eth_null_copy_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 	int i;
 	struct null_queue *h = q;
-	unsigned packet_size = h->internals->packet_size;
+	unsigned packet_size;
 	if ((q == NULL) || (bufs == NULL))
 		return 0;
+	packet_size = h->internals->packet_size;
 	for (i = 0; i < nb_bufs; i++) {
 		rte_memcpy(h->dummy_packet, rte_pktmbuf_mtod(bufs[i], void *),

             reply	other threads:[~2015-03-16  3:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-16  3:43 Tetsuya Mukawa [this message]
2015-03-17 22:00 ` Thomas Monjalon

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:

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

  git send-email \
    --in-reply-to=1426477401-13429-1-git-send-email-mukawa@igel.co.jp \
    --to=mukawa@igel.co.jp \
    --cc=dev@dpdk.org \


* 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 \
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:

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