Le lundi 14 fÃvrier 2011 Ã 16:18 +0100, Jan Engelhardt a Ãcrit : > On Monday 2011-02-14 16:11, Eric Dumazet wrote: > > >Le lundi 14 fÃvrier 2011 Ã 16:58 +0200, Avi Kivity a Ãcrit : > >> We see severe memory corruption in kvm while used in conjunction with > >> bridge/netfilter. Enabling slab debugging points the finger at a > >> netfilter chain invoked from the bridge code. > >> > >> Can someone take a look? > >> > >> https://bugzilla.kernel.org/show_bug.cgi?id=27052 > > Maybe looks familiar to https://lkml.org/lkml/2011/2/3/147 Are you sure Jan ? IMHO it looks like in your case, a NULL ->hook() is called, from nf_iterate() BTW, list_for_each_continue_rcu() really should be converted to list_for_each_entry_continue_rcu() This is a bit ugly : list_for_each_continue_rcu(*i, head) { struct nf_hook_ops *elem = (struct nf_hook_ops *)*i; Also, I wonder if RCU rules are respected in nf_iterate(). For example this line is really suspicious : *i = (*i)->prev; -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
