commit f6f19f8bb9afcd0e9970fe51b5affa3063af4499
author Jacob Keller <jacob.e.keller@intel.com> Mon Aug 24 17:01:58 2015 -0700
committer Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tue Oct 13 23:49:13 2015 -0700
tree 65ca3c04753980bcd1d158e34847ed77a50f9eae
parent f079fa005aae08ee0e1bc32699874ff4f02e11c1

fm10k: use snprintf() instead of sprintf() to avoid buffer overflow

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/fm10k/fm10k_debugfs.c

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_debugfs.c b/drivers/net/ethernet/intel/fm10k/fm10k_debugfs.c
index 08ecf43..5304bc1 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_debugfs.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_debugfs.c
@@ -176,7 +176,7 @@
 		return;
 
 	/* Generate a folder for each q_vector */
-	sprintf(name, "q_vector.%03d", q_vector->v_idx);
+	snprintf(name, sizeof(name), "q_vector.%03d", q_vector->v_idx);
 
 	q_vector->dbg_q_vector = debugfs_create_dir(name, interface->dbg_intfc);
 	if (!q_vector->dbg_q_vector)
@@ -186,7 +186,7 @@
 	for (i = 0; i < q_vector->tx.count; i++) {
 		struct fm10k_ring *ring = &q_vector->tx.ring[i];
 
-		sprintf(name, "tx_ring.%03d", ring->queue_index);
+		snprintf(name, sizeof(name), "tx_ring.%03d", ring->queue_index);
 
 		debugfs_create_file(name, 0600,
 				    q_vector->dbg_q_vector, ring,
@@ -197,7 +197,7 @@
 	for (i = 0; i < q_vector->rx.count; i++) {
 		struct fm10k_ring *ring = &q_vector->rx.ring[i];
 
-		sprintf(name, "rx_ring.%03d", ring->queue_index);
+		snprintf(name, sizeof(name), "rx_ring.%03d", ring->queue_index);
 
 		debugfs_create_file(name, 0600,
 				    q_vector->dbg_q_vector, ring,

drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
index 4ef2fbd..447a5f8 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
@@ -206,13 +206,13 @@
 	}
 
 	for (i = 0; i < interface->hw.mac.max_queues; i++) {
-		sprintf(p, "tx_queue_%u_packets", i);
+		snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_packets", i);
 		p += ETH_GSTRING_LEN;
-		sprintf(p, "tx_queue_%u_bytes", i);
+		snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i);
 		p += ETH_GSTRING_LEN;
-		sprintf(p, "rx_queue_%u_packets", i);
+		snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_packets", i);
 		p += ETH_GSTRING_LEN;
-		sprintf(p, "rx_queue_%u_bytes", i);
+		snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i);
 		p += ETH_GSTRING_LEN;
 	}
 }