imgact_aout: Widen the overflow checks in exec_aout_imgact()HEADmain

I suspect this overflow check isn't needed at all, at least today, since
vm_map_insert() will detect wraparound when it creates segments (and
even a check against UINT_MAX is too loose, since the max user address
is AOUT32_USRSTACK == 0xbfc00000).  But if we're going to keep this
check, there doesn't seem to be any downside to applying it on all
platforms, before exec_new_vmspace() tears down the current vmspace.

Reported by:	Muhammed Sariyildiz <asiyee994@gmail.com>
Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D60027

0 files changed, 0 insertions, 0 deletions