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X-Received-From: 2a00:1450:4864:20::241 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jasowang@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Andrew Melnychenko Fixes: 6f3fbe4ed06 Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=3D1737400 Fixed setting max_queue_num if there are no peers in NICConf. qemu_new_nic(= ) creates NICState with 1 NetClientState(index 0) without peers, set max_qu= eue_num to 0 - It prevents undefined behavior and possible crashes, especia= lly during pcie hotplug. Signed-off-by: Andrew Melnychenko Reviewed-by: Dmitry Fleytman Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/net/e1000e.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c index a91dbdca3c..f2cc1552c5 100644 --- a/hw/net/e1000e.c +++ b/hw/net/e1000e.c @@ -328,7 +328,7 @@ e1000e_init_net_peer(E1000EState *s, PCIDevice *pci_dev= , uint8_t *macaddr) s->nic =3D qemu_new_nic(&net_e1000e_info, &s->conf, object_get_typename(OBJECT(s)), dev->id, s); =20 - s->core.max_queue_num =3D s->conf.peers.queues - 1; + s->core.max_queue_num =3D s->conf.peers.queues ? s->conf.peers.queues = - 1 : 0; =20 trace_e1000e_mac_set_permanent(MAC_ARG(macaddr)); memcpy(s->core.permanent_mac, macaddr, sizeof(s->core.permanent_mac)); --=20 2.24.1