[PATCH] net: fix uninitialized variable issue
From: Tadeusz Struk <hidden>
Date: 2015-12-15 18:49:39
Also in:
lkml, netdev, stable
Subsystem:
networking [general], networking [sockets], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Willem de Bruijn, Linus Torvalds
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 <redacted> Signed-off-by: Tadeusz Struk <redacted> --- net/socket.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/socket.c b/net/socket.c
index dd2c247..80ca820 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);