Re: [PATCH] xfrm: policy: check policy direction value

2017-08-03 Thread Steffen Klassert
On Wed, Aug 02, 2017 at 07:50:14PM +0200, Vladis Dronov wrote: > The 'dir' parameter in xfrm_migrate() is a user-controlled byte which is used > as an array index. This can lead to an out-of-bound access, kernel lockup and > DoS. Add a check for the 'dir' value. > > This fixes CVE-2017-11600. > >

[PATCH] xfrm: policy: check policy direction value

2017-08-02 Thread Vladis Dronov
The 'dir' parameter in xfrm_migrate() is a user-controlled byte which is used as an array index. This can lead to an out-of-bound access, kernel lockup and DoS. Add a check for the 'dir' value. This fixes CVE-2017-11600. References: https://bugzilla.redhat.com/show_bug.cgi?id=1474928 Fixes: 80c9a