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* [dpdk-stable] [PATCH] net/mlx5: fix unlimited scan in switch info detection
@ 2020-07-21 12:02 Michael Baum
  2020-07-22 15:30 ` [dpdk-stable] [dpdk-dev] " Raslan Darawsheh
  0 siblings, 1 reply; 2+ messages in thread
From: Michael Baum @ 2020-07-21 12:02 UTC (permalink / raw)
  To: dev; +Cc: matan, viacheslavo, stable

In mlx5_sysfs_switch_info function, the driver gets switch information
associated with network interface.

The driver writes the port name into buffer and translates it.
However, when it writes the name, it does not limit writing to the
buffer size.

Limit writing to the size of the buffer.

Fixes: 1256805dd54d ("net/mlx5: move Linux-specific functions")
Cc: stable@dpdk.org

Signed-off-by: Michael Baum <michaelba@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
 drivers/net/mlx5/linux/mlx5_ethdev_os.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/linux/mlx5_ethdev_os.c b/drivers/net/mlx5/linux/mlx5_ethdev_os.c
index 1735157..3d3dd2e 100644
--- a/drivers/net/mlx5/linux/mlx5_ethdev_os.c
+++ b/drivers/net/mlx5/linux/mlx5_ethdev_os.c
@@ -1067,7 +1067,7 @@ struct ethtool_link_settings {
 
 	file = fopen(phys_port_name, "rb");
 	if (file != NULL) {
-		ret = fscanf(file, "%s", port_name);
+		ret = fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", port_name);
 		fclose(file);
 		if (ret == 1)
 			mlx5_translate_port_name(port_name, &data);
-- 
1.8.3.1


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2020-07-22 15:31 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
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2020-07-21 12:02 [dpdk-stable] [PATCH] net/mlx5: fix unlimited scan in switch info detection Michael Baum
2020-07-22 15:30 ` [dpdk-stable] [dpdk-dev] " Raslan Darawsheh

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