On Mon, Jan 18, 2016 at 09:23:58 +0100, Michal Privoznik wrote: > In the commit aea47e48c473a we have fixed a single pointer within > driver structure. Since all callers pass statically allocated > driver on stack other pointers within driver may contain random > values too. Before touching it lets overwrite it with zeroes and > thus fix all dangling pointers. > > Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; > --- > tests/testutilsqemu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tests/testutilsqemu.c b/tests/testutilsqemu.c > index f2eacdd..6c52b96 100644 > --- a/tests/testutilsqemu.c > +++ b/tests/testutilsqemu.c > @@ -558,7 +558,7 @@ int qemuTestDriverInit(virQEMUDriver *driver) > if (virMutexInit(&driver->lock) < 0) > return -1; > > - driver->securityManager = NULL; > + memset(driver, 0, sizeof(*driver)); I'm afraid you just killed the just initialized mutex...