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(parent: 99becf1) | patch
KVM: Fix buffer overflow in kvm_set_irq()
authorAvi Kivity <avi@redhat.com>
Sun, 22 Apr 2012 14:02:11 +0000 (17:02 +0300)
committerAvi Kivity <avi@redhat.com>
Tue, 5 Jun 2012 13:39:58 +0000 (16:39 +0300)
commitf2ebd422f71cda9c791f76f85d2ca102ae34a1ed
tree79944d1c2e3a879b320c0ac2ead230eb655573catree | snapshot (tar.gz zip)
parent99becf1328d8d71dd6f4480e3591d7dcdb389e57commit | diff
KVM: Fix buffer overflow in kvm_set_irq()

kvm_set_irq() has an internal buffer of three irq routing entries, allowing
connecting a GSI to three IRQ chips or on MSI.  However setup_routing_entry()
does not properly enforce this, allowing three irqchip routes followed by
an MSI route to overflow the buffer.

Fix by ensuring that an MSI entry is added to an empty list.

Signed-off-by: Avi Kivity <avi@redhat.com>
virt/kvm/irq_comm.c diff | blob | blame | history