File 0218-serial-fix-memory-leak-in-serial-ex.patch of Package qemu-linux-user.11145

Overview Repositories Revisions Requests Users Attributes Meta

File 0218-serial-fix-memory-leak-in-serial-ex.patch of Package qemu-linux-user.11145

From c5262f05b008e66b2137c18251ed09044ed84dbc Mon Sep 17 00:00:00 2001
From: Li Qiang <liqiang6-s@360.cn>
Date: Wed, 4 Jan 2017 00:43:16 -0800
Subject: [PATCH] serial: fix memory leak in serial exit

The serial_exit_core function doesn't free some resources.
This can lead memory leak when hotplug and unplug. This
patch avoid this.

Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Message-Id: <586cb5ab.f31d9d0a.38ac3.acf2@mx.google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 8409dc884a201bf74b30a9d232b6bbdd00cb7e2b)
[BR: BSC#1021741 CVE-2017-5579]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/char/serial.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hw/char/serial.c b/hw/char/serial.c
index 3998131af2..ebf507ba6b 100644
--- a/hw/char/serial.c
+++ b/hw/char/serial.c
@@ -869,6 +869,16 @@ void serial_realize_core(SerialState *s, Error **errp)
 void serial_exit_core(SerialState *s)
 {
     qemu_chr_add_handlers(s->chr, NULL, NULL, NULL, NULL);
+
+    timer_del(s->modem_status_poll);
+    timer_free(s->modem_status_poll);
+
+    timer_del(s->fifo_timeout_timer);
+    timer_free(s->fifo_timeout_timer);
+
+    fifo8_destroy(&s->recv_fifo);
+    fifo8_destroy(&s->xmit_fifo);
+
     qemu_unregister_reset(serial_reset, s);
 }

Places

File 0218-serial-fix-memory-leak-in-serial-ex.patch of Package qemu-linux-user.11145

Places