From f5aa0d21dd5ada040ff42b4d40357285e4ace441 Mon Sep 17 00:00:00 2001 From: Ujjal Roy Date: Thu, 9 Jan 2014 21:16:14 +0530 Subject: [PATCH] cfg80211: add sanity check for retry limit in wext-compat Block setting the wrong values through iwconfig retry command. Add sanity checking before sending the retry limit to the driver. Signed-off-by: Ujjal Roy Signed-off-by: Johannes Berg --- net/wireless/wext-compat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index 051d961..5661a54 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -370,7 +370,7 @@ static int cfg80211_wext_siwretry(struct net_device *dev, u8 oshort = wdev->wiphy->retry_short; int err; - if (retry->disabled || + if (retry->disabled || retry->value < 1 || retry->value > 255 || (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) return -EINVAL; -- 2.7.4