diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2009-07-13 13:25:58 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-07-21 12:07:40 -0400 |
| commit | e603d9d824ff0eda98a65708a7e82112becf2dca (patch) | |
| tree | ead78be30bfde8b11f6a5b60c3d2712b0136ebd4 /drivers/net/wireless/mac80211_hwsim.c | |
| parent | 5d41635195c06fc3116ef3921fe85a9a3ea5ab20 (diff) | |
mac80211_hwsim: fix use after free
Once the "data" pointer is freed, we can't be iterating
to the next item in the list any more so we need to use
list_for_each_entry_safe with a temporary variable.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
| -rw-r--r-- | drivers/net/wireless/mac80211_hwsim.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 5bed8241f3cc..7916ca3f84c8 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -709,7 +709,7 @@ static const struct ieee80211_ops mac80211_hwsim_ops = static void mac80211_hwsim_free(void) { struct list_head tmplist, *i, *tmp; - struct mac80211_hwsim_data *data; + struct mac80211_hwsim_data *data, *tmpdata; INIT_LIST_HEAD(&tmplist); @@ -718,7 +718,7 @@ static void mac80211_hwsim_free(void) list_move(i, &tmplist); spin_unlock_bh(&hwsim_radio_lock); - list_for_each_entry(data, &tmplist, list) { + list_for_each_entry_safe(data, tmpdata, &tmplist, list) { debugfs_remove(data->debugfs_group); debugfs_remove(data->debugfs_ps); debugfs_remove(data->debugfs); |