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| author | Fam Zheng <famz@redhat.com> | 2016-08-02 11:41:41 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-08-03 18:44:57 +0200 |
| commit | 0d4104e5760221547fad158bbbb655a4e4c22b50 (patch) | |
| tree | 08d271d2e0af843ebe9c5075906e20224c2407f8 | |
| parent | f04ec5afbb7d60a56863add800fd90ceee66f362 (diff) | |
| download | qemu-0d4104e5760221547fad158bbbb655a4e4c22b50.zip qemu-0d4104e5760221547fad158bbbb655a4e4c22b50.tar.gz qemu-0d4104e5760221547fad158bbbb655a4e4c22b50.tar.bz2 | |
qdev: Fix use after free in qdev_init_nofail error path
Since 69382d8b (qdev: Fix object reference leak in case device.realize()
fails), object_property_set_bool could release the object. The error
path wants the type name, so hold an reference before realizing it.
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1470109301-12966-1-git-send-email-famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | hw/core/qdev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/core/qdev.c b/hw/core/qdev.c index ee4a083..5783442 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -354,12 +354,14 @@ void qdev_init_nofail(DeviceState *dev) assert(!dev->realized); + object_ref(OBJECT(dev)); object_property_set_bool(OBJECT(dev), true, "realized", &err); if (err) { error_reportf_err(err, "Initialization of device %s failed: ", object_get_typename(OBJECT(dev))); exit(1); } + object_unref(OBJECT(dev)); } void qdev_machine_creation_done(void) |