On Mon, Jul 22, 2024 at 02:42:10PM +0800, Z qiang wrote: [...] > > > > > > This should be caused by this modification (commit id: > > > ca567df74a28a9fb368c6b2d93e864113f73f5c2) > > > when tsk is null, miss invoke rcu_read_unlock() for NS_GET_TGID_IN_PIDNS. > > > > Very good, and it looks like that to me as well. Would you like to > > submit a fix patch and see if syzbot agrees? > > I see there is a c test > program(https://syzkaller.appspot.com/x/repro.c?x=17a3c349980000), > I will run this test on my local machine, and then make a fix. > FWIW, syzbot provides a way to do tests automatically: https://github.com/google/syzkaller/blob/master/docs/syzbot.md#testing-patches But looks like Christian already fixed this: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=280e36f0d5b997173d014c07484c03a7f7750668 Regards, Boqun > Thanks > Zqiang > > [...]
