tree 9749e71358a173faba86a0188fc5a4a787ba1aaa
parent 923b352f19d9ea971ae2536eab55f5fc9e95fedf
author Adrien Schildknecht <adrien+dev@schischi.me> 1438072216 +0200
committer Johannes Berg <johannes.berg@intel.com> 1439466754 +0200

mac80211: fix invalid read in minstrel_sort_best_tp_rates()

At the last iteration of the loop, j may equal zero and thus
tp_list[j - 1] causes an invalid read.
Change the logic of the loop so that j - 1 is always >= 0.

Cc: stable@vger.kernel.org
Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>