[libvirt] [PATCH 00/12] Various libxl driver improvements
John Ferlan
jferlan at redhat.com
Wed Sep 4 11:20:17 UTC 2013
On 09/03/2013 07:57 PM, Jim Fehlig wrote:
> Jim Fehlig wrote:
<...snip...>
>
> I addressed the review comments from the various patches and pushed the
> series. Thanks for the reviews!
>
> Regards,
> Jim
>
The changes have resulted in one Coverity found issue that seems to
have been there "for a while" (at least as far as git blame is concerned).
In libxlDomainCoreDump() Coverity has noted a FORWARD_NULL reference:
2004 if ((flags & VIR_DUMP_CRASH) && !vm->persistent) {
2005 virDomainObjListRemove(driver->domains, vm);
(20) Event assign_zero: Assigning: "vm" = "NULL".
Also see events: [var_deref_model]
2006 vm = NULL;
2007 }
2008
2009 ret = 0;
2010
2011 cleanup_unpause:
(21) Event var_deref_model: Passing null pointer "vm" to function "virDomainObjIsActive(virDomainObjPtr)", which dereferences it. [details]
Also see events: [assign_zero]
2012 if (virDomainObjIsActive(vm) && paused) {
2013 if (libxl_domain_unpause(priv->ctx, dom->id) != 0) {
2014 virReportError(VIR_ERR_INTERNAL_ERROR,
2015 _("After dumping core, failed to resume domain '%d' with"
Not quite sure which is the best course of action, but it seems
there needs to be at least a "if (vm && virDomainObjIsActive(vm)..."
Also, the ListRemove call could probably be moved up into the
previous if condition since they both require VIR_DUMP_CRASH
John
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