tijl 679845ea20 Fix another user address dereference in linux_sendmsg syscall.
This was hidden behind the LINUX_CMSG_NXTHDR macro which dereferences its
second argument.  Stop using the macro as well as LINUX_CMSG_FIRSTHDR.  Use
the size field of the kernel copy of the control message header to obtain
the next control message.

PR:		217901
MFC after:	2 days
X-MFC-With:	r340631
2018-11-20 14:18:57 +00:00
..
2018-11-19 03:02:47 +00:00
2018-10-20 20:45:49 +00:00
2018-11-12 22:18:11 +00:00
2018-10-20 22:39:35 +00:00
2018-07-15 00:31:17 +00:00
2018-11-16 23:39:39 +00:00