On 09/02/2010 05:43 AM, Matthias Bolte wrote:
- /* Assuming can't have more then 9999 devices so - * restricting to %04d + /* Zero pad for nice alignment when fewer than 9999 + * devices. */ - sprintf(filtername, "filter%04d", i); - VBOX_UTF8_TO_UTF16(filtername,&filternameUtf16); + if (virAsprintf(&filtername, "filter%04d", i)< 0) { + virReportOOMError(); + } else { + VBOX_UTF8_TO_UTF16(filtername,&filternameUtf16); + VIR_FREE(filtername); + }
USBController->vtbl->CreateDeviceFilter(USBController, filternameUtf16,
In case virAsprintf fails CreateDeviceFilter will be called with filternameUtf16 = NULL, that might trigger a segfault.
Good catch. I'll respin this patch as part of my round 3 cleanups (more openvz_driver changes, and virsh.c, still to come). It may be another day or two... -- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org