From c4d2ffac330fd013944654f11cdfc06ff5ca9bf4 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 8 Jan 2014 22:22:05 +0100 Subject: [PATCH] mac80211: fix agg_status debugfs file write Initialize the buffer to all zeroes, otherwise the stack data might be interpreted as the TID, which is likely to fail completely. Signed-off-by: Johannes Berg --- net/mac80211/debugfs_sta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 80194b557a0c..2ecb4deddb5d 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -195,7 +195,7 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, size_t count, loff_t *ppos) { - char _buf[12], *buf = _buf; + char _buf[12] = {}, *buf = _buf; struct sta_info *sta = file->private_data; bool start, tx; unsigned long tid; -- 2.11.0