From: Du Cheng <[email protected]>
[ Upstream commit 1b5ab825d9acc0f27d2f25c6252f3526832a9626 ]
A WARN_ON(wdev->conn) would trigger in cfg80211_sme_connect(), if multiple
send_msg(NL80211_CMD_CONNECT) system calls are made from the userland, which
should be anticipated and handled by the wireless driver. Remove this WARN_ON()
to prevent kernel panic if kernel is configured to "panic_on_warn".
Bug reported by syzbot.
Reported-by: [email protected]
Signed-off-by: Du Cheng <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
net/wireless/sme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 38df713f2e2e..060e365c8259 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -530,7 +530,7 @@ static int cfg80211_sme_connect(struct wireless_dev *wdev,
cfg80211_sme_free(wdev);
}
- if (WARN_ON(wdev->conn))
+ if (wdev->conn)
return -EINPROGRESS;
wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
--
2.30.2