From: Konstantin Khlebnikov <koct9i@gmail.com>
To: Pekka Enberg <penberg@kernel.org>, Sasha Levin <sasha.levin@oracle.com>
Cc: kvm@vger.kernel.org
Subject: [PATCH] kvm tools: balloon: fix overflow in PFN to address conversion
Date: Wed, 20 Aug 2014 18:37:34 +0400 [thread overview]
Message-ID: <20140820143734.3909.97343.stgit@buzz> (raw)
Fix trivial overflow of u32 value
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
---
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++;
reply other threads:[~2014-08-20 14:37 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140820143734.3909.97343.stgit@buzz \
--to=koct9i@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=penberg@kernel.org \
--cc=sasha.levin@oracle.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.