From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 14 May 2019 08:23:42 +0000 (+0200)
Subject: 5.0-stable patches
X-Git-Tag: v5.1.2~16
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=48f3994340ab857e35eea648b326c6a7d4375df9;p=thirdparty%2Fkernel%2Fstable-queue.git

5.0-stable patches

added patches:
	cw1200-fix-missing-unlock-on-error-in-cw1200_hw_scan.patch
---

diff --git a/queue-5.0/cw1200-fix-missing-unlock-on-error-in-cw1200_hw_scan.patch b/queue-5.0/cw1200-fix-missing-unlock-on-error-in-cw1200_hw_scan.patch
new file mode 100644
index 00000000000..1bf89e9269e
--- /dev/null
+++ b/queue-5.0/cw1200-fix-missing-unlock-on-error-in-cw1200_hw_scan.patch
@@ -0,0 +1,37 @@
+From 51c8d24101c79ffce3e79137e2cee5dfeb956dd7 Mon Sep 17 00:00:00 2001
+From: Wei Yongjun <weiyongjun1@huawei.com>
+Date: Sat, 22 Dec 2018 10:34:54 +0000
+Subject: cw1200: fix missing unlock on error in cw1200_hw_scan()
+
+From: Wei Yongjun <weiyongjun1@huawei.com>
+
+commit 51c8d24101c79ffce3e79137e2cee5dfeb956dd7 upstream.
+
+Add the missing unlock before return from function cw1200_hw_scan()
+in the error handling case.
+
+Fixes: 4f68ef64cd7f ("cw1200: Fix concurrency use-after-free bugs in cw1200_hw_scan()")
+Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
+Acked-by: Jia-Ju Bai <baijiaju1990@gmail.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/net/wireless/st/cw1200/scan.c |    5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/wireless/st/cw1200/scan.c
++++ b/drivers/net/wireless/st/cw1200/scan.c
+@@ -84,8 +84,11 @@ int cw1200_hw_scan(struct ieee80211_hw *
+ 
+ 	frame.skb = ieee80211_probereq_get(hw, priv->vif->addr, NULL, 0,
+ 		req->ie_len);
+-	if (!frame.skb)
++	if (!frame.skb) {
++		mutex_unlock(&priv->conf_mutex);
++		up(&priv->scan.lock);
+ 		return -ENOMEM;
++	}
+ 
+ 	if (req->ie_len)
+ 		skb_put_data(frame.skb, req->ie, req->ie_len);
diff --git a/queue-5.0/series b/queue-5.0/series
index 03d88d78d9f..1c6e224ce6f 100644
--- a/queue-5.0/series
+++ b/queue-5.0/series
@@ -98,3 +98,4 @@ bpf-only-test-gso-type-on-gso-packets.patch
 net-sched-fix-cleanup-null-pointer-exception-in-act_.patch
 net-mvpp2-fix-validate-for-ppv2.1.patch
 drm-rockchip-fix-for-mailbox-read-validation.patch
+cw1200-fix-missing-unlock-on-error-in-cw1200_hw_scan.patch