Commit 55dbe8e1 authored by Szymon Janc's avatar Szymon Janc Committed by Greg Kroah-Hartman

Bluetooth: Fix user channel for 32bit userspace on 64bit kernel

commit ab89f0bd upstream.

Running 32bit userspace on 64bit kernel results in MSG_CMSG_COMPAT being
defined as 0x80000000. This results in sendmsg failure if used from 32bit
userspace running on 64bit kernel. Fix this by accounting for MSG_CMSG_COMPAT
in flags check in hci_sock_sendmsg.
Signed-off-by: default avatarSzymon Janc <szymon.janc@codecoup.pl>
Signed-off-by: default avatarMarko Kiiskila <marko@runtime.io>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0c7581fd
...@@ -909,7 +909,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, ...@@ -909,7 +909,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
if (msg->msg_flags & MSG_OOB) if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP; return -EOPNOTSUPP;
if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE)) if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE|
MSG_CMSG_COMPAT))
return -EINVAL; return -EINVAL;
if (len < 4 || len > HCI_MAX_FRAME_SIZE) if (len < 4 || len > HCI_MAX_FRAME_SIZE)
......
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