[Qemu-devel] [Bug 1050823] [NEW] segmentation fault when using usb-net and -netdev tap

[Paolo Bonzini]

Public bug reported:

The following command causes a Segmentation fault:

qemu-kvm -usb -device usb-net,netdev=net0 -netdev tap,id=net0
Segmentation fault

The following command does not:

qemu-kvm -usb -device usb-net,netdev=net0 -netdev user,id=net0

Program received signal SIGSEGV, Segmentation fault.
usbnet_can_receive (nc=0x55555657dc20)
    at /home/pbonzini/work/upstream/qemu/hw/usb/dev-network.c:1292
1292        if (is_rndis(s) && s->rndis_state != RNDIS_DATA_INITIALIZED) {

First reported at https://bugzilla.redhat.com/show_bug.cgi?id=843310

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1050823

Title:
  segmentation fault when using usb-net and -netdev tap

Status in QEMU:
  New

Bug description:
  The following command causes a Segmentation fault:

  qemu-kvm -usb -device usb-net,netdev=net0 -netdev tap,id=net0
  Segmentation fault

  The following command does not:

  qemu-kvm -usb -device usb-net,netdev=net0 -netdev user,id=net0

  Program received signal SIGSEGV, Segmentation fault.
  usbnet_can_receive (nc=0x55555657dc20)
      at /home/pbonzini/work/upstream/qemu/hw/usb/dev-network.c:1292
  1292      if (is_rndis(s) && s->rndis_state != RNDIS_DATA_INITIALIZED) {

  First reported at https://bugzilla.redhat.com/show_bug.cgi?id=843310

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