From 2eccd92cea9b6f4deaad7ed7b36178628ed8c0c3 Mon Sep 17 00:00:00 2001 From: "tadeusz.struk@intel.com" Date: Tue, 15 Dec 2015 10:46:17 -0800 Subject: [PATCH] net: fix uninitialized variable issue [ Upstream commit 130ed5d105dde141e7fe60d5440aa53e0a84f13b ] msg_iocb needs to be initialized on the recv/recvfrom path. Otherwise afalg will wrongly interpret it as an async call. Cc: stable@vger.kernel.org Reported-by: Harald Freudenberger Signed-off-by: Tadeusz Struk Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/socket.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/socket.c b/net/socket.c index 9963a0b53a642..f3fbe17b5765e 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1702,6 +1702,7 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size, msg.msg_name = addr ? (struct sockaddr *)&address : NULL; /* We assume all kernel code knows the size of sockaddr_storage */ msg.msg_namelen = 0; + msg.msg_iocb = NULL; if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; err = sock_recvmsg(sock, &msg, iov_iter_count(&msg.msg_iter), flags); -- 2.47.2