From: Robert Sanford <rsanford2@gmail.com>
To: dev@dpdk.org, cristian.dumitrescu@intel.com
Subject: [dpdk-dev] [PATCH 2/4] port: fix ring writer buffer overflow
Date: Mon, 28 Mar 2016 16:51:35 -0400 [thread overview]
Message-ID: <1459198297-49854-3-git-send-email-rsanford@akamai.com> (raw)
In-Reply-To: <1459198297-49854-1-git-send-email-rsanford@akamai.com>
Ring writer tx_bulk functions may write past the end of tx_buf[].
Solution is to double the size of tx_buf[].
Signed-off-by: Robert Sanford <rsanford@akamai.com>
---
lib/librte_port/rte_port_ring.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/librte_port/rte_port_ring.c b/lib/librte_port/rte_port_ring.c
index b847fea..765ecc5 100644
--- a/lib/librte_port/rte_port_ring.c
+++ b/lib/librte_port/rte_port_ring.c
@@ -179,7 +179,7 @@ rte_port_ring_reader_stats_read(void *port,
struct rte_port_ring_writer {
struct rte_port_out_stats stats;
- struct rte_mbuf *tx_buf[RTE_PORT_IN_BURST_SIZE_MAX];
+ struct rte_mbuf *tx_buf[2 * RTE_PORT_IN_BURST_SIZE_MAX];
struct rte_ring *ring;
uint32_t tx_burst_sz;
uint32_t tx_buf_count;
@@ -447,7 +447,7 @@ rte_port_ring_writer_stats_read(void *port,
struct rte_port_ring_writer_nodrop {
struct rte_port_out_stats stats;
- struct rte_mbuf *tx_buf[RTE_PORT_IN_BURST_SIZE_MAX];
+ struct rte_mbuf *tx_buf[2 * RTE_PORT_IN_BURST_SIZE_MAX];
struct rte_ring *ring;
uint32_t tx_burst_sz;
uint32_t tx_buf_count;
--
1.7.1
next prev parent reply other threads:[~2016-03-28 20:52 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-28 20:51 [dpdk-dev] [PATCH 0/4] port: fix and test bugs in tx_bulk ops Robert Sanford
2016-03-28 20:51 ` [dpdk-dev] [PATCH 1/4] app/test: enhance test_port_ring_writer Robert Sanford
2016-04-01 19:42 ` Sanford, Robert
2016-04-06 16:46 ` Dumitrescu, Cristian
2016-03-28 20:51 ` Robert Sanford [this message]
2016-03-31 11:21 ` [dpdk-dev] [PATCH 2/4] port: fix ring writer buffer overflow Dumitrescu, Cristian
2016-03-28 20:51 ` [dpdk-dev] [PATCH 3/4] port: fix full burst checks in f_tx_bulk ops Robert Sanford
2016-03-31 15:41 ` Dumitrescu, Cristian
2016-04-01 19:31 ` Sanford, Robert
2016-03-28 20:51 ` [dpdk-dev] [PATCH 4/4] port: fix ethdev writer burst too big Robert Sanford
2016-03-31 13:22 ` Dumitrescu, Cristian
2016-03-30 11:00 ` [dpdk-dev] [PATCH 0/4] port: fix and test bugs in tx_bulk ops Thomas Monjalon
2016-03-30 11:58 ` Dumitrescu, Cristian
2016-04-01 14:58 [dpdk-dev] [PATCH 2/4] port: fix ring writer buffer overflow Sanford, Robert
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