Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging

* remotes/qmp-unstable/queue/qmp:
  monitor: fix use after free
  dump.c: Fix memory leak issue in cleanup processing for dump_init()
  monitor: Remove hardcoded watchdog event names

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

dump.c

@@ -71,18 +71,14 @@ uint64_t cpu_to_dump64(DumpState *s, uint64_t val)
 
 static int dump_cleanup(DumpState *s)
 {
-    int ret = 0;
-
     guest_phys_blocks_free(&s->guest_phys_blocks);
     memory_mapping_list_free(&s->list);
-    if (s->fd != -1) {
-        close(s->fd);
-    }
+    close(s->fd);
     if (s->resume) {
         vm_start();
     }
 
-    return ret;
+    return 0;
 }
 
 static void dump_error(DumpState *s, const char *reason)
@@ -1499,6 +1495,8 @@ static int dump_init(DumpState *s, int fd, bool has_format,
     s->begin = begin;
     s->length = length;
 
+    memory_mapping_list_init(&s->list);
+
     guest_phys_blocks_init(&s->guest_phys_blocks);
     guest_phys_blocks_append(&s->guest_phys_blocks);
 
@@ -1526,7 +1524,6 @@ static int dump_init(DumpState *s, int fd, bool has_format,
     }
 
     /* get memory mapping */
-    memory_mapping_list_init(&s->list);
     if (paging) {
         qemu_get_guest_memory_mapping(&s->list, &s->guest_phys_blocks, &err);
         if (err != NULL) {
@@ -1622,12 +1619,7 @@ static int dump_init(DumpState *s, int fd, bool has_format,
     return 0;
 
 cleanup:
-    guest_phys_blocks_free(&s->guest_phys_blocks);
-
-    if (s->resume) {
-        vm_start();
-    }
-
+    dump_cleanup(s);
     return -1;
 }
 

include/monitor/monitor.h

@@ -64,7 +64,7 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
                                 Error **errp);
 int monitor_fdset_get_fd(int64_t fdset_id, int flags);
 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd);
-int monitor_fdset_dup_fd_remove(int dup_fd);
+void monitor_fdset_dup_fd_remove(int dup_fd);
 int monitor_fdset_dup_fd_find(int dup_fd);
 
 #endif /* !MONITOR_H */

monitor.c

@@ -2542,8 +2542,10 @@ static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
                     if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
                         monitor_fdset_cleanup(mon_fdset);
                     }
+                    return -1;
+                } else {
+                    return mon_fdset->id;
                 }
-                return mon_fdset->id;
             }
         }
     }
@@ -2555,9 +2557,9 @@ int monitor_fdset_dup_fd_find(int dup_fd)
     return monitor_fdset_dup_fd_find_remove(dup_fd, false);
 }
 
-int monitor_fdset_dup_fd_remove(int dup_fd)
+void monitor_fdset_dup_fd_remove(int dup_fd)
 {
-    return monitor_fdset_dup_fd_find_remove(dup_fd, true);
+    monitor_fdset_dup_fd_find_remove(dup_fd, true);
 }
 
 int monitor_handle_fd_param(Monitor *mon, const char *fdname)
@@ -4521,16 +4523,15 @@ void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
 
 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
 {
+    int i;
+
     if (nb_args != 2) {
         return;
     }
     readline_set_completion_index(rs, strlen(str));
-    add_completion_option(rs, str, "reset");
-    add_completion_option(rs, str, "shutdown");
-    add_completion_option(rs, str, "poweroff");
-    add_completion_option(rs, str, "pause");
-    add_completion_option(rs, str, "debug");
-    add_completion_option(rs, str, "none");
+    for (i = 0; WatchdogExpirationAction_lookup[i]; i++) {
+        add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]);
+    }
 }
 
 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,

stubs/fdset-remove-fd.c

@@ -1,7 +1,6 @@
 #include "qemu-common.h"
 #include "monitor/monitor.h"
 
-int monitor_fdset_dup_fd_remove(int dupfd)
+void monitor_fdset_dup_fd_remove(int dupfd)
 {
-    return -1;
 }