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| author | Konstantin Khlebnikov <koct9i@gmail.com> | 2014-08-20 18:37:34 +0400 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-06-01 16:39:55 +0100 |
| commit | c818344265db400757911eb44ece0aacefef6bfe (patch) | |
| tree | 8677212a1b3eaf5ed3e01f88bbb91e9af18ac14a | |
| parent | 474b696f40b5655197c51719ecd3bc6308182199 (diff) | |
| download | kvmtool-c818344265db400757911eb44ece0aacefef6bfe.tar.gz | |
kvm tools: balloon: fix overflow in PFN to address conversion
Fix trivial overflow of u32 value
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
| -rw-r--r-- | virtio/balloon.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/virtio/balloon.c b/virtio/balloon.c index f7dfb0be..84c4bb06 100644 --- a/virtio/balloon.c +++ b/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++; |