1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0096-wireguard-queueing-cleanup-ptr_ring-in-error-path-of.patch b/target/linux/generic/backport-5.4/080-wireguard-0096-wireguard-queueing-cleanup-ptr_ring-in-error-path-of.patch
new file mode 100644
index 0000000000..98ff785f39
--- /dev/null
+++ b/target/linux/generic/backport-5.4/080-wireguard-0096-wireguard-queueing-cleanup-ptr_ring-in-error-path-of.patch
@@ -0,0 +1,35 @@
+From 08d5c8fc96361389fdd982477aaf6d7c9311f5e0 Mon Sep 17 00:00:00 2001
+From: "Jason A. Donenfeld" <Jason@zx2c4.com>
+Date: Wed, 29 Apr 2020 14:59:21 -0600
+Subject: [PATCH 096/124] wireguard: queueing: cleanup ptr_ring in error path
+ of packet_queue_init
+
+commit 130c58606171326c81841a49cc913cd354113dd9 upstream.
+
+Prior, if the alloc_percpu of packet_percpu_multicore_worker_alloc
+failed, the previously allocated ptr_ring wouldn't be freed. This commit
+adds the missing call to ptr_ring_cleanup in the error case.
+
+Reported-by: Sultan Alsawaf <sultan@kerneltoast.com>
+Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
+Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
+---
+ drivers/net/wireguard/queueing.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/wireguard/queueing.c
++++ b/drivers/net/wireguard/queueing.c
+@@ -35,8 +35,10 @@ int wg_packet_queue_init(struct crypt_qu
+ 		if (multicore) {
+ 			queue->worker = wg_packet_percpu_multicore_worker_alloc(
+ 				function, queue);
+-			if (!queue->worker)
++			if (!queue->worker) {
++				ptr_ring_cleanup(&queue->ring, NULL);
+ 				return -ENOMEM;
++			}
+ 		} else {
+ 			INIT_WORK(&queue->work, function);
+ 		}