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Diffstat (limited to 'net')
-rw-r--r--net/passt.c22
-rw-r--r--net/tap.c9
-rw-r--r--net/vhost-user.c9
3 files changed, 14 insertions, 26 deletions
diff --git a/net/passt.c b/net/passt.c
index 6f616ba3c2..32ecffb763 100644
--- a/net/passt.c
+++ b/net/passt.c
@@ -103,7 +103,10 @@ static void net_passt_cleanup(NetClientState *nc)
 #endif
 
     kill(s->pid, SIGTERM);
-    g_remove(s->pidfile);
+    if (g_remove(s->pidfile) != 0) {
+        warn_report("Failed to remove passt pidfile %s: %s",
+                    s->pidfile, strerror(errno));
+    }
     g_free(s->pidfile);
     g_ptr_array_free(s->args, TRUE);
 }
@@ -121,7 +124,7 @@ static gboolean net_passt_send(QIOChannel *ioc, GIOCondition condition,
 {
     if (net_stream_data_send(ioc, condition, data) == G_SOURCE_REMOVE) {
         NetPasstState *s = DO_UPCAST(NetPasstState, data, data);
-        Error *error;
+        Error *error = NULL;
 
         /* we need to restart passt */
         kill(s->pid, SIGTERM);
@@ -375,7 +378,8 @@ static int passt_vhost_user_start(NetPasstState *s, VhostUserState *be)
     net = vhost_net_init(&options);
     if (!net) {
         error_report("failed to init passt vhost_net");
-        goto err;
+        passt_vhost_user_stop(s);
+        return -1;
     }
 
     if (s->vhost_net) {
@@ -385,19 +389,11 @@ static int passt_vhost_user_start(NetPasstState *s, VhostUserState *be)
     s->vhost_net = net;
 
     return 0;
-err:
-    if (net) {
-        vhost_net_cleanup(net);
-        g_free(net);
-    }
-    passt_vhost_user_stop(s);
-    return -1;
 }
 
 static void passt_vhost_user_event(void *opaque, QEMUChrEvent event)
 {
     NetPasstState *s = opaque;
-    Error *err = NULL;
 
     switch (event) {
     case CHR_EVENT_OPENED:
@@ -428,10 +424,6 @@ static void passt_vhost_user_event(void *opaque, QEMUChrEvent event)
         /* Ignore */
         break;
     }
-
-    if (err) {
-        error_report_err(err);
-    }
 }
 
 static int net_passt_vhost_user_init(NetPasstState *s, Error **errp)
diff --git a/net/tap.c b/net/tap.c
index 23536c09b4..f7df702f97 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -190,6 +190,11 @@ static void tap_send(void *opaque)
             break;
         }
 
+        if (s->host_vnet_hdr_len && size <= s->host_vnet_hdr_len) {
+            /* Invalid packet */
+            break;
+        }
+
         if (s->host_vnet_hdr_len && !s->using_vnet_hdr) {
             buf  += s->host_vnet_hdr_len;
             size -= s->host_vnet_hdr_len;
@@ -890,8 +895,8 @@ int net_init_tap(const Netdev *netdev, const char *name,
                 goto free_fail;
             }
 
-            ret = g_unix_set_fd_nonblocking(fd, true, NULL);
-            if (!ret) {
+            if (!g_unix_set_fd_nonblocking(fd, true, NULL)) {
+                ret = -1;
                 error_setg_errno(errp, errno, "%s: Can't use file descriptor %d",
                                  name, fd);
                 goto free_fail;
diff --git a/net/vhost-user.c b/net/vhost-user.c
index 1c3b8b36f3..8b96157145 100644
--- a/net/vhost-user.c
+++ b/net/vhost-user.c
@@ -298,7 +298,6 @@ static void chr_closed_bh(void *opaque)
     const char *name = opaque;
     NetClientState *ncs[MAX_QUEUE_NUM];
     NetVhostUserState *s;
-    Error *err = NULL;
     int queues, i;
 
     queues = qemu_find_net_clients_except(name, ncs,
@@ -317,9 +316,6 @@ static void chr_closed_bh(void *opaque)
     qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, net_vhost_user_event,
                              NULL, opaque, NULL, true);
 
-    if (err) {
-        error_report_err(err);
-    }
     qapi_event_send_netdev_vhost_user_disconnected(name);
 }
 
@@ -329,7 +325,6 @@ static void net_vhost_user_event(void *opaque, QEMUChrEvent event)
     NetClientState *ncs[MAX_QUEUE_NUM];
     NetVhostUserState *s;
     Chardev *chr;
-    Error *err = NULL;
     int queues;
 
     queues = qemu_find_net_clients_except(name, ncs,
@@ -375,10 +370,6 @@ static void net_vhost_user_event(void *opaque, QEMUChrEvent event)
         /* Ignore */
         break;
     }
-
-    if (err) {
-        error_report_err(err);
-    }
 }
 
 static int net_vhost_user_init(NetClientState *peer, const char *device,