From: Dan Gora <dg@adax.com>
Date: Thu, 28 Jun 2018 22:58:38 +0000 (-0700)
Subject: kni: fix crash with null name
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=e716b639856cc4baa46bc6d5bc63bcc1d6bd9cf9;p=dpdk.git

kni: fix crash with null name

Fix a segmentation fault which occurs when the kni_autotest is run
in the 'test' application.

This segmenation fault occurs when rte_kni_get() is called with a
NULL value for 'name'.

Fixes: 0c6bc8ef70ba ("kni: memzone pool for alloc and release")
Cc: stable@dpdk.org

Signed-off-by: Dan Gora <dg@adax.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---

diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c
index 8a8f6c1cc9..65f6a2b038 100644
--- a/lib/librte_kni/rte_kni.c
+++ b/lib/librte_kni/rte_kni.c
@@ -715,6 +715,9 @@ rte_kni_get(const char *name)
 	struct rte_kni_memzone_slot *it;
 	struct rte_kni *kni;
 
+	if (name == NULL || name[0] == '\0')
+		return NULL;
+
 	/* Note: could be improved perf-wise if necessary */
 	for (i = 0; i < kni_memzone_pool.max_ifaces; i++) {
 		it = &kni_memzone_pool.slots[i];