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From 744a9df71d68005c83f01ddde142f1b08c8fc69c Mon Sep 17 00:00:00 2001
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From: Michael S. Tsirkin <mst@redhat.com>
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Date: Wed, 14 May 2014 08:35:57 +0200
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Subject: [PATCH 18/31] usb: sanity check setup_index+setup_len in post_load
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RH-Author: Michael S. Tsirkin <mst@redhat.com>
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Message-id: <1400056525-6869-1-git-send-email-mst@redhat.com>
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Patchwork-id: 58864
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O-Subject: [PATCH qemu-kvm RHEL7.1 1/2] usb: sanity check setup_index+setup_len in post_load
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Bugzilla: 1095747
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RH-Acked-by: Marcel Apfelbaum <marcel.a@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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From: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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(cherry picked from commit c60174e847082ab9f70720f86509a3353f816fad)
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Brew build: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=7452039
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Tested: lightly on developer's box
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Bugzilla: 1095743
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---
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hw/usb/bus.c | 4 ++++
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1 file changed, 4 insertions(+)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/usb/bus.c | 4 ++++
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1 files changed, 4 insertions(+), 0 deletions(-)
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diff --git a/hw/usb/bus.c b/hw/usb/bus.c
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index fe6bd13..e0c3a77 100644
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--- a/hw/usb/bus.c
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+++ b/hw/usb/bus.c
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@@ -49,6 +49,10 @@ static int usb_device_post_load(void *opaque, int version_id)
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} else {
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dev->attached = 1;
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}
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+ if (dev->setup_index >= sizeof(dev->data_buf) ||
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+ dev->setup_len >= sizeof(dev->data_buf)) {
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+ return -EINVAL;
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+ }
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return 0;
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}
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--
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1.7.1
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