Hi, > syzbot hit the following crash on upstream commit > f3afe530d644488a074291da04a69a296ab63046 (Tue Feb 27 22:02:39 2018 +0000) > Merge branch 'fixes-v4.16-rc4' of > git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security > > So far this crash happened 4 times on upstream. > Unfortunately, I don't have any reproducer for this crash yet. > Raw console output is attached. That's ... a pretty complex scenario. Looks like we have a race between destroying a network namespace, which moves everything back into the init_ns and may have to rename objects asynchronously (cleanup_net), with destroying the radio in hwsim that's also asynchronous (destroy_radio). Benjamin, would you be able to take a look at this? I'm preparing for a trip and will leave Saturday for a week so I don't think I'll be able to really dig into this before mid-March. johannes