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[Qemu-devel] [PATCH] spice-char: fix segfault in char_spice_finalize
From: |
Li Qiang |
Subject: |
[Qemu-devel] [PATCH] spice-char: fix segfault in char_spice_finalize |
Date: |
Mon, 20 Feb 2017 19:37:19 -0800 |
In 'qemu_chr_open_spice_vmc' if the 'psubtype' is NULL, it will
call 'char_spice_finalize'. But as the SpiceChardev is not inserted
in the 'spice_chars' list, the 'QLIST_REMOVE' will cause a segfault.
Add a detect to avoid it.
Signed-off-by: Li Qiang <address@hidden>
---
spice-qemu-char.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/spice-qemu-char.c b/spice-qemu-char.c
index 6f46f46..15dbf9c 100644
--- a/spice-qemu-char.c
+++ b/spice-qemu-char.c
@@ -215,7 +215,10 @@ static void char_spice_finalize(Object *obj)
SpiceChardev *s = SPICE_CHARDEV(obj);
vmc_unregister_interface(s);
- QLIST_REMOVE(s, next);
+
+ if (spice_chars.lh_first) {
+ QLIST_REMOVE(s, next);
+ }
g_free((char *)s->sin.subtype);
#if SPICE_SERVER_VERSION >= 0x000c02
--
1.8.3.1
- [Qemu-devel] [PATCH] spice-char: fix segfault in char_spice_finalize,
Li Qiang <=