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[Qemu-devel] [RFC] monitor: fix segfault from uninitialized lexer->emit
From: |
Alon Levy |
Subject: |
[Qemu-devel] [RFC] monitor: fix segfault from uninitialized lexer->emit |
Date: |
Wed, 10 Aug 2011 11:20:09 +0300 |
The following triggers a call to monitor_control_read before
monitor_control_event has been called. This patch is misplaced but
fixes the problem by moving the json_message_parser_init call before
setting the chardev handlers.
(echo '{"execute": "qmp_capabilities"}'; echo '{"execute":"query-spice"}'; echo
'{ "execute": "quit" }') | qemu-system-x86_64 -spice port=9999 -qmp stdio
Signed-off-by: Alon Levy <address@hidden>
---
monitor.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/monitor.c b/monitor.c
index 1b8ba2c..6e3d970 100644
--- a/monitor.c
+++ b/monitor.c
@@ -5190,8 +5190,6 @@ static void monitor_control_event(void *opaque, int event)
switch (event) {
case CHR_EVENT_OPENED:
- mon->mc->command_mode = 0;
- json_message_parser_init(&mon->mc->parser, handle_qmp_command);
data = get_qmp_greeting();
monitor_json_emitter(mon, data);
qobject_decref(data);
@@ -5272,6 +5270,8 @@ void monitor_init(CharDriverState *chr, int flags)
if (monitor_ctrl_mode(mon)) {
mon->mc = qemu_mallocz(sizeof(MonitorControl));
+ mon->mc->command_mode = 0;
+ json_message_parser_init(&mon->mc->parser, handle_qmp_command);
/* Control mode requires special handlers */
qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
monitor_control_event, mon);
--
1.7.6
- [Qemu-devel] [RFC] monitor: fix segfault from uninitialized lexer->emit,
Alon Levy <=