From a71852147516bc1cb5b0b3cbd13639bfd4022dc8 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Thu, 29 Oct 2015 13:45:54 -0300
Subject: Linux-libre 4.2.5-gnu

---
 net/unix/af_unix.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'net/unix')

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 03ee4d359..94f658235 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2064,6 +2064,11 @@ static int unix_stream_read_generic(struct unix_stream_read_state *state)
 		goto out;
 	}
 
+	if (flags & MSG_PEEK)
+		skip = sk_peek_offset(sk, flags);
+	else
+		skip = 0;
+
 	do {
 		int chunk;
 		struct sk_buff *skb, *last;
@@ -2112,7 +2117,6 @@ unlock:
 			break;
 		}
 
-		skip = sk_peek_offset(sk, flags);
 		while (skip >= unix_skb_len(skb)) {
 			skip -= unix_skb_len(skb);
 			last = skb;
@@ -2181,6 +2185,17 @@ unlock:
 
 			sk_peek_offset_fwd(sk, chunk);
 
+			if (UNIXCB(skb).fp)
+				break;
+
+			skip = 0;
+			last = skb;
+			last_len = skb->len;
+			unix_state_lock(sk);
+			skb = skb_peek_next(skb, &sk->sk_receive_queue);
+			if (skb)
+				goto again;
+			unix_state_unlock(sk);
 			break;
 		}
 	} while (size);
-- 
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