drivers/misc/vmw_vmci/vmci_queue_pair.c: fix a couple integer overflow tests
authorDan Carpenter <dan.carpenter@oracle.com>
Mon, 8 May 2017 22:55:14 +0000 (15:55 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 13 Apr 2018 17:47:53 +0000 (19:47 +0200)
commita90e9ee704b291125d0dda967e14a3340567afab
treea20d6e96c20bb7ac8314ca45e39648f3b8f31e00
parent75d34f1c60072a8d4e9cb1905c32272f23f6dcef
drivers/misc/vmw_vmci/vmci_queue_pair.c: fix a couple integer overflow tests

[ Upstream commit 146180c052a00172f4dc08eaade836fd02f61fb5 ]

The "DIV_ROUND_UP(size, PAGE_SIZE)" operation can overflow if "size" is
more than ULLONG_MAX - PAGE_SIZE.

Link: http://lkml.kernel.org/r/20170322111950.GA11279@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jorgen Hansen <jhansen@vmware.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/vmw_vmci/vmci_queue_pair.c