On 09/13/2012 10:23 AM, Alex Jia wrote: > The 'def->target.addr' hasn't been initialized in virDomainChrDefNew() and > its value is always '0xffffffff', in addition, the following test scenario > hasn't also include 'port' element in channel XML block, so the branch > 'if (addrStr == NULL)' is hit in virDomainChrDefParseTargetXML(), the > programming jumps to 'error' label to release relevant resources, and the > statement 'if (VIR_ALLOC(def->target.addr) < 0)' hasn't been executed then > the virDomainChrDefFree() will free 'def->target.addr'(0xffffffff) via > VIR_FREE(), which results in libvirt crash, to use valgrind can also > find a 'Invalid free() / delete / delete[]' error. This patch just adjusts > codes order to initialize 'def->target.addr' firstly. > > With this patch, libvirt hasn't crash and can get a expected error message " > XML error: guestfwd channel does not define a target address". ACK. -- Eric Blake eblake@xxxxxxxxxx +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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