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xen/privcmd: make sure vma is ours before doing anything to it
authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Sun, 8 Mar 2009 11:10:00 +0000 (04:10 -0700)
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Wed, 20 Oct 2010 23:22:32 +0000 (16:22 -0700)
Test vma->vm_ops is our operations to make sure we created it.
We don't want to stomp on other random vmas.

[ Impact: bugfix; prevent ioctl from affecting other mappings ]

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

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