1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0079-wireguard-queueing-do-not-account-for-pfmemalloc-whe.patch b/target/linux/generic/backport-5.4/080-wireguard-0079-wireguard-queueing-do-not-account-for-pfmemalloc-whe.patch
new file mode 100644
index 0000000000..fb03b1b1a6
--- /dev/null
+++ b/target/linux/generic/backport-5.4/080-wireguard-0079-wireguard-queueing-do-not-account-for-pfmemalloc-whe.patch
@@ -0,0 +1,39 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Jason A. Donenfeld" <Jason@zx2c4.com>
+Date: Thu, 2 Jan 2020 17:47:50 +0100
+Subject: [PATCH] wireguard: queueing: do not account for pfmemalloc when
+ clearing skb header
+
+commit 04d2ea92a18417619182cbb79063f154892b0150 upstream.
+
+Before 8b7008620b84 ("net: Don't copy pfmemalloc flag in __copy_skb_
+header()"), the pfmemalloc flag used to be between headers_start and
+headers_end, which is a region we clear when preparing the packet for
+encryption/decryption. This is a parameter we certainly want to
+preserve, which is why 8b7008620b84 moved it out of there. The code here
+was written in a world before 8b7008620b84, though, where we had to
+manually account for it. This commit brings things up to speed.
+
+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.h | 3 ---
+ 1 file changed, 3 deletions(-)
+
+--- a/drivers/net/wireguard/queueing.h
++++ b/drivers/net/wireguard/queueing.h
+@@ -83,13 +83,10 @@ static inline __be16 wg_skb_examine_untr
+ 
+ static inline void wg_reset_packet(struct sk_buff *skb)
+ {
+-	const int pfmemalloc = skb->pfmemalloc;
+-
+ 	skb_scrub_packet(skb, true);
+ 	memset(&skb->headers_start, 0,
+ 	       offsetof(struct sk_buff, headers_end) -
+ 		       offsetof(struct sk_buff, headers_start));
+-	skb->pfmemalloc = pfmemalloc;
+ 	skb->queue_mapping = 0;
+ 	skb->nohdr = 0;
+ 	skb->peeked = 0;