If we pass large(more than cpunum) cpu mask to any libvirt_virDomainPin* methods, it could leads to crash. So we have to check tuple size and ignore extra tuple members. Signed-off-by: Konstantin Neumoin <kneumoin(a)virtuozzo.com&gt; --- libvirt-override.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/libvirt-override.c b/libvirt-override.c index fa3e2ca..83b760b 100644 --- a/libvirt-override.c +++ b/libvirt-override.c @@ -1327,7 +1327,7 @@ libvirt_virDomainPinVcpu(PyObject *self ATTRIBUTE_UNUSED, if (VIR_ALLOC_N(cpumap, cpumaplen) < 0) return PyErr_NoMemory(); - for (i = 0; i < tuple_size; i++) { + for (i = 0; i < MIN(cpunum, tuple_size); i++) { PyObject *flag = PyTuple_GetItem(pycpumap, i); bool b; @@ -1392,7 +1392,7 @@ libvirt_virDomainPinVcpuFlags(PyObject *self ATTRIBUTE_UNUSED, if (VIR_ALLOC_N(cpumap, cpumaplen) < 0) return PyErr_NoMemory(); - for (i = 0; i < tuple_size; i++) { + for (i = 0; i < MIN(cpunum, tuple_size); i++) { PyObject *flag = PyTuple_GetItem(pycpumap, i); bool b; @@ -1532,7 +1532,7 @@ libvirt_virDomainPinEmulator(PyObject *self ATTRIBUTE_UNUSED, if (VIR_ALLOC_N(cpumap, cpumaplen) < 0) return PyErr_NoMemory(); - for (i = 0; i < tuple_size; i++) { + for (i = 0; i < MIN(cpunum, tuple_size); i++) { PyObject *flag = PyTuple_GetItem(pycpumap, i); bool b; @@ -1738,7 +1738,7 @@ libvirt_virDomainPinIOThread(PyObject *self ATTRIBUTE_UNUSED, if (VIR_ALLOC_N(cpumap, cpumaplen) < 0) return PyErr_NoMemory(); - for (i = 0; i < tuple_size; i++) { + for (i = 0; i < MIN(cpunum, tuple_size); i++) { PyObject *flag = PyTuple_GetItem(pycpumap, i); bool b; -- 2.5.5