[PATCH] kvm tools: balloon: fix overflow in PFN to address conversion

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Fix trivial overflow of u32 value

Signed-off-by: Konstantin Khlebnikov <koct9i@xxxxxxxxx>
---
 tools/kvm/virtio/balloon.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/kvm/virtio/balloon.c b/tools/kvm/virtio/balloon.c
index f7dfb0b..84c4bb0 100644
--- a/tools/kvm/virtio/balloon.c
+++ b/tools/kvm/virtio/balloon.c
@@ -64,7 +64,7 @@ static bool virtio_bln_do_io_request(struct kvm *kvm, struct bln_dev *bdev, stru
 	for (i = 0 ; i < len ; i++) {
 		void *guest_ptr;
 
-		guest_ptr = guest_flat_to_host(kvm, ptrs[i] << VIRTIO_BALLOON_PFN_SHIFT);
+		guest_ptr = guest_flat_to_host(kvm, (u64)ptrs[i] << VIRTIO_BALLOON_PFN_SHIFT);
 		if (queue == &bdev->vqs[VIRTIO_BLN_INFLATE]) {
 			madvise(guest_ptr, 1 << VIRTIO_BALLOON_PFN_SHIFT, MADV_DONTNEED);
 			bdev->config.actual++;

--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux