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authorJohannes Berg <johannes.berg@intel.com>2023-08-15 18:32:03 +0200
committerJohannes Berg <johannes.berg@intel.com>2023-08-22 21:40:39 +0200
commitabc76cf552e13cfa88a204b362a86b0e08e95228 (patch)
tree1310b1bd0ae15b446ffe78d4eb64965ca99654a3 /net/wireless
parent5d4e04bf3a0f098bd9033de3a5291810fa14c7a6 (diff)
wifi: cfg80211: ocb: don't leave if not joined
If there's no OCB state, don't ask the driver/mac80211 to leave, since that's just confusing. Since set/clear the chandef state, that's a simple check. Reported-by: syzbot+09d1cd2f71e6dd3bfd2c@syzkaller.appspotmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/ocb.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/wireless/ocb.c b/net/wireless/ocb.c
index 27a1732264f9..29afaf3da54f 100644
--- a/net/wireless/ocb.c
+++ b/net/wireless/ocb.c
@@ -68,6 +68,9 @@ int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
if (!rdev->ops->leave_ocb)
return -EOPNOTSUPP;
+ if (!wdev->u.ocb.chandef.chan)
+ return -ENOTCONN;
+
err = rdev_leave_ocb(rdev, dev);
if (!err)
memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef));