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Merge remote-tracking branch 'remotes/sstabellini/tags/cve-2015-5166-tag' into staging

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cve-2015-5166

# gpg: Signature made Mon 03 Aug 2015 15:27:44 BST using RSA key ID 70E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"

* remotes/sstabellini/tags/cve-2015-5166-tag:
  Fix release_drive on unplugged devices (pci_piix3_xen_ide_unplug)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
2015-08-03 18:52:55 +01:00
parent e95edefbd0 6cd387833d
commit 260425ab40
1 changed files with 7 additions and 0 deletions
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hw/ide/piix.c
+7
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@@ -169,6 +169,7 @@ int pci_piix3_xen_ide_unplug(DeviceState *dev)
PCIIDEState *pci_ide;
DriveInfo *di;
int i;
IDEDevice *idedev;
pci_ide = PCI_IDE(dev);
@@ -181,6 +182,12 @@ int pci_piix3_xen_ide_unplug(DeviceState *dev)
blk_detach_dev(blk, ds);
}
pci_ide->bus[di->bus].ifs[di->unit].blk = NULL;
if (!(i % 2)) {
idedev = pci_ide->bus[di->bus].master;
} else {
idedev = pci_ide->bus[di->bus].slave;
}
idedev->conf.blk = NULL;
blk_unref(blk);
}
}