Pan Nengyuan <pannengy...@huawei.com> 于2020年6月3日周三 下午2:17写道：
> 'obj' forgot to free at the end of hmp_qom_get(). Fix that. > > The leak stack: > Direct leak of 40 byte(s) in 1 object(s) allocated from: > #0 0x7f4e3a779ae8 in __interceptor_malloc (/lib64/libasan.so.5+0xefae8) > #1 0x7f4e398f91d5 in g_malloc (/lib64/libglib-2.0.so.0+0x531d5) > #2 0x55c9fd9a3999 in qstring_from_substr > /build/qemu/src/qobject/qstring.c:45 > #3 0x55c9fd894bd3 in qobject_output_type_str > /build/qemu/src/qapi/qobject-output-visitor.c:175 > #4 0x55c9fd894bd3 in qobject_output_type_str > /build/qemu/src/qapi/qobject-output-visitor.c:168 > #5 0x55c9fd88b34d in visit_type_str > /build/qemu/src/qapi/qapi-visit-core.c:308 > #6 0x55c9fd59aa6b in property_get_str /build/qemu/src/qom/object.c:2064 > #7 0x55c9fd5adb8a in object_property_get_qobject > /build/qemu/src/qom/qom-qobject.c:38 > #8 0x55c9fd4a029d in hmp_qom_get /build/qemu/src/qom/qom-hmp-cmds.c:66 > > Fixes: 89cf4fe34f4 > Reported-by: Euler Robot <euler.ro...@huawei.com> > Signed-off-by: Pan Nengyuan <pannengy...@huawei.com> > This can be tested by compile qemu with '-fsanitize=address' cflags and: make check Reviewed-by: Li Qiang <liq...@gmail.com> Tested-by: Li Qiang <liq...@gmail.com> Li Qiang > --- > qom/qom-hmp-cmds.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/qom/qom-hmp-cmds.c b/qom/qom-hmp-cmds.c > index f704b6949a..3d2a23292d 100644 > --- a/qom/qom-hmp-cmds.c > +++ b/qom/qom-hmp-cmds.c > @@ -71,6 +71,7 @@ void hmp_qom_get(Monitor *mon, const QDict *qdict) > qobject_unref(str); > } > > + qobject_unref(obj); > hmp_handle_error(mon, err); > } > > -- > 2.18.2 > > >
