Patch "Bluetooth: btqcomsmd: Fix skb double free corruption" has been added to the 4.15-stable tree

This is a note to let you know that I've just added the patch titled

Bluetooth: btqcomsmd: Fix skb double free corruption

to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
bluetooth-btqcomsmd-fix-skb-double-free-corruption.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Loic Poulain <[email protected]>
Date: Wed, 22 Nov 2017 15:03:17 +0100
Subject: Bluetooth: btqcomsmd: Fix skb double free corruption

From: Loic Poulain <[email protected]>

[ Upstream commit 67b8fbead4685b36d290a0ef91c6ddffc4920ec9 ]

In case of hci send frame failure, skb is still owned by the caller (hci_core) and then should not be freed.

This fixes crash on dragonboard-410c when sending SCO packet. skb is freed by both btqcomsmd and hci_core.

---
 drivers/bluetooth/btqcomsmd.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -88,7 +88,8 @@ static int btqcomsmd_send(struct hci_dev
 		break;
 	}
 
-	kfree_skb(skb);
+	if (!ret)
+		kfree_skb(skb);
 
 	return ret;
 }

Patches currently in stable-queue which might be from [email protected] are

queue-4.15/bluetooth-btqcomsmd-fix-skb-double-free-corruption.patch queue-4.15/bluetooth-hci_qca-avoid-setup-failure-on-missing-rampatch.patch