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[Qemu-stable] [PATCH 79/81] virtio-pci: reset modern vq meta data
From: |
Michael Roth |
Subject: |
[Qemu-stable] [PATCH 79/81] virtio-pci: reset modern vq meta data |
Date: |
Mon, 20 Mar 2017 18:08:43 -0500 |
From: Jason Wang <address@hidden>
We don't reset proxy->vqs[].{num|desc[]|avail[]|used[]}. This means if
a driver enable the vq without setting vq address after reset. The old
addresses were leaked. Fixing this by resetting modern vq meta data
during device reset.
Cc: address@hidden
Signed-off-by: Jason Wang <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
(cherry picked from commit 60a8d8023473dd24957b3a66824f66cd35b80d64)
Signed-off-by: Michael Roth <address@hidden>
---
hw/virtio/virtio-pci.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 21c2b9d..33eb1fb 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1836,6 +1836,10 @@ static void virtio_pci_reset(DeviceState *qdev)
for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
proxy->vqs[i].enabled = 0;
+ proxy->vqs[i].num = 0;
+ proxy->vqs[i].desc[0] = proxy->vqs[i].desc[1] = 0;
+ proxy->vqs[i].avail[0] = proxy->vqs[i].avail[1] = 0;
+ proxy->vqs[i].used[0] = proxy->vqs[i].used[1] = 0;
}
}
--
2.7.4
- [Qemu-stable] [PATCH 72/81] cirrus: add blit_is_unsafe call to cirrus_bitblt_cputovideo (CVE-2017-2620), (continued)
- [Qemu-stable] [PATCH 72/81] cirrus: add blit_is_unsafe call to cirrus_bitblt_cputovideo (CVE-2017-2620), Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 61/81] block/nfs: fix NULL pointer dereference in URI parsing, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 08/81] 9pfs: local: llistxattr: don't follow symlinks, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 74/81] NetRxPkt: Fix memory corruption on VLAN header stripping, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 65/81] target-ppc, tcg: fix usermode segfault with pthread_create(), Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 05/81] 9pfs: local: keep a file descriptor on the shared folder, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 63/81] sd: sdhci: check data length during dma_memory_read, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 70/81] qga: ignore EBUSY when freezing a filesystem, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 66/81] block/vmdk: Fix the endian problem of buf_len and lba, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 06/81] 9pfs: local: open/opendir: don't follow symlinks, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 79/81] virtio-pci: reset modern vq meta data,
Michael Roth <=
- [Qemu-stable] [PATCH 76/81] NetRxPkt: Account buffer with ETH header in IOV length, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 77/81] e1000e: correctly tear down MSI-X memory regions, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 80/81] s390x/css: reassign subchannel if schid is changed after migration, Michael Roth, 2017/03/20
- [Qemu-stable] [PATCH 07/81] 9pfs: local: lgetxattr: don't follow symlinks, Michael Roth, 2017/03/20
- Re: [Qemu-stable] [Qemu-devel] [PATCH 00/81] Patch Round-up for stable 2.8.1, freeze on 2017-03-27, Eric Blake, 2017/03/20
- Re: [Qemu-stable] [Qemu-devel] [PATCH 00/81] Patch Round-up for stable 2.8.1, freeze on 2017-03-27, Richard Henderson, 2017/03/20
- Re: [Qemu-stable] [PATCH 00/81] Patch Round-up for stable 2.8.1, freeze on 2017-03-27, Greg Kurz, 2017/03/21
- [Qemu-stable] [PATCH 55/81] s390x/kvm: fix cmma reset for KVM, Michael Roth, 2017/03/21
- Re: [Qemu-stable] [Qemu-devel] [PATCH 00/81] Patch Round-up for stable 2.8.1, freeze on 2017-03-27, Christian Borntraeger, 2017/03/22