diff mbox series

ethdev: fix missed item expansion for RSS flow

Message ID 1574759050-21879-1-git-send-email-matan@mellanox.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers
Series ethdev: fix missed item expansion for RSS flow |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/iol-compilation success Compile Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/travis-robot success Travis build: passed
ci/iol-mellanox-Performance success Performance Testing PASS

Commit Message

Matan Azrad Nov. 26, 2019, 9:04 a.m. UTC 
  When the last item in flow pattern includes "next protocol" field which
is relevant for RSS flow expansion, a new item is added to the pattern
according to the "next protocol" field. This field is called missed
field.

The missed field wrongly was not initialized what caused to some of the
flow item fields to contain garbage values.

As a result, the PMDs internal flow engine may crash.

For example, the spec value may include garbage pointer and to cause
crash.

Initialize the missed field with zeroes.

Fixes: fc2dd8dd492f ("ethdev: fix expand RSS flows")
Cc: jackmin@mellanox.com

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
---
 lib/librte_ethdev/rte_flow.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Ferruh Yigit Nov. 26, 2019, 1:22 p.m. UTC | #1 
On 11/26/2019 9:04 AM, Matan Azrad wrote:
> When the last item in flow pattern includes "next protocol" field which
> is relevant for RSS flow expansion, a new item is added to the pattern
> according to the "next protocol" field. This field is called missed
> field.
> 
> The missed field wrongly was not initialized what caused to some of the
> flow item fields to contain garbage values.
> 
> As a result, the PMDs internal flow engine may crash.
> 
> For example, the spec value may include garbage pointer and to cause
> crash.
> 
> Initialize the missed field with zeroes.
> 
> Fixes: fc2dd8dd492f ("ethdev: fix expand RSS flows")
> Cc: jackmin@mellanox.com
> 
> Signed-off-by: Matan Azrad <matan@mellanox.com>
> Acked-by: Ori Kam <orika@mellanox.com>

Applied to dpdk-next-net/master, thanks.
diff mbox series

Patch

diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c
index d7f29e5..87a3e8c 100644
--- a/lib/librte_ethdev/rte_flow.c
+++ b/lib/librte_ethdev/rte_flow.c
@@ -1071,6 +1071,7 @@  enum rte_flow_conv_item_spec_type {
 	int elt = 0;
 	const struct rte_flow_item *last_item = NULL;
 
+	memset(&missed_item, 0, sizeof(missed_item));
 	lsize = offsetof(struct rte_flow_expand_rss, entry) +
 		elt_n * sizeof(buf->entry[0]);
 	if (lsize <= size) {