openwrt/package/kernel/mac80211/patches/subsys/370-mac80211-fix-misplaced-while-instead-of-if.patch
Hauke Mehrtens ca5ee6eba3 mac80211: Fix potential endless loop
Backport a fix from kernel 5.8.3.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-08-30 22:21:34 +02:00

32 lines
1.2 KiB
Diff

From 5981fe5b0529ba25d95f37d7faa434183ad618c5 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 3 Aug 2020 11:02:10 +0200
Subject: [PATCH] mac80211: fix misplaced while instead of if
This never was intended to be a 'while' loop, it should've
just been an 'if' instead of 'while'. Fix this.
I noticed this while applying another patch from Ben that
intended to fix a busy loop at this spot.
Cc: stable@vger.kernel.org
Fixes: b16798f5b907 ("mac80211: mark station unauthorized before key removal")
Reported-by: Ben Greear <greearb@candelatech.com>
Link: https://lore.kernel.org/r/20200803110209.253009ae41ff.I3522aad099392b31d5cf2dcca34cbac7e5832dde@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/sta_info.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1051,7 +1051,7 @@ static void __sta_info_destroy_part2(str
might_sleep();
lockdep_assert_held(&local->sta_mtx);
- while (sta->sta_state == IEEE80211_STA_AUTHORIZED) {
+ if (sta->sta_state == IEEE80211_STA_AUTHORIZED) {
ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
WARN_ON_ONCE(ret);
}