The dmesg output in the bug description comes from log setup from firestarter (/etc/firestarter/firewall), I suspect that some of the rules are triggering the bug (as you also noted on irc discussion). But I tried to install firestarter and was unable to reproduce the issue, so can be something specific or configuration I don't have.
Even if you don't run firestart, just keeping it installed will make it start and add some rules, it could also conflict with other services (happened here, it removed/changed nat rules that were previously setup by libvirt for my vms)
Between the reported working (2.6.38-8.42) and non-working (2.6.38-10-generic) kernel, we have the following netfilter changes:
44ff155 netfilter: ipt_CLUSTERIP: fix buffer overflow
2444a5d netfilter: arp_tables: fix infoleak to userspace
ec6128c netfilter: xtables: fix reentrancy
43bfce2 netfilter: ip_tables: fix infoleak to userspace
Probably the ip_tables one can be causing issues here, I'll build test kernels with each one reverted and ask for testing soon.
The dmesg output in the bug description comes from log setup from firestarter (/etc/firestart er/firewall) , I suspect that some of the rules are triggering the bug (as you also noted on irc discussion). But I tried to install firestarter and was unable to reproduce the issue, so can be something specific or configuration I don't have.
Even if you don't run firestart, just keeping it installed will make it start and add some rules, it could also conflict with other services (happened here, it removed/changed nat rules that were previously setup by libvirt for my vms)
Between the reported working (2.6.38-8.42) and non-working (2.6.38-10-generic) kernel, we have the following netfilter changes:
44ff155 netfilter: ipt_CLUSTERIP: fix buffer overflow
2444a5d netfilter: arp_tables: fix infoleak to userspace
ec6128c netfilter: xtables: fix reentrancy
43bfce2 netfilter: ip_tables: fix infoleak to userspace
Probably the ip_tables one can be causing issues here, I'll build test kernels with each one reverted and ask for testing soon.