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(parent: 3f2e526) | patch
KVM: make checks stricter in coalesced_mmio_in_range()
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 19 Oct 2011 06:15:10 +0000 (09:15 +0300)
committerAvi Kivity <avi@redhat.com>
Tue, 27 Dec 2011 09:17:07 +0000 (11:17 +0200)
commit1a214246cbb431f7430f7d0c0fb66218a6f442d2
tree5a45be4f7fe958dbd09774ad9425bdcf40ff8e91tree | snapshot
parent3f2e5260f5a17d37be3e3c83aca2f335b9bf3893commit | diff
KVM: make checks stricter in coalesced_mmio_in_range()

My testing version of Smatch complains that addr and len come from
the user and they can wrap.  The path is:
  -> kvm_vm_ioctl()
     -> kvm_vm_ioctl_unregister_coalesced_mmio()
        -> coalesced_mmio_in_range()

I don't know what the implications are of wrapping here, but we may
as well fix it, if only to silence the warning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
virt/kvm/coalesced_mmio.c diff | blob | history
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