[PATCH v5 4/5] app/pdump: fix string overflow
From: Reshma Pattan <hidden>
Date: 2016-06-24 16:36:28
Subsystem:
the rest · Maintainer:
Linus Torvalds
replaced strncpy with snprintf for safely
copying the strings.
Coverity issue 127351: string overflow
Fixes: caa7028276b8 ("app/pdump: add tool for packet capturing")
Signed-off-by: Reshma Pattan <redacted>
---
app/pdump/main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/app/pdump/main.c b/app/pdump/main.c
index f8923b9..fe4d38a 100644
--- a/app/pdump/main.c
+++ b/app/pdump/main.c@@ -217,12 +217,12 @@ parse_rxtxdev(const char *key, const char *value, void *extra_args) struct pdump_tuples *pt = extra_args; if (!strcmp(key, PDUMP_RX_DEV_ARG)) { - strncpy(pt->rx_dev, value, strlen(value)); + snprintf(pt->rx_dev, sizeof(pt->rx_dev), "%s", value); /* identify the tx stream type for pcap vdev */ if (if_nametoindex(pt->rx_dev)) pt->rx_vdev_stream_type = IFACE; } else if (!strcmp(key, PDUMP_TX_DEV_ARG)) { - strncpy(pt->tx_dev, value, strlen(value)); + snprintf(pt->tx_dev, sizeof(pt->tx_dev), "%s", value); /* identify the tx stream type for pcap vdev */ if (if_nametoindex(pt->tx_dev)) pt->tx_vdev_stream_type = IFACE;
--
2.5.0