I noticed pfifo_qdisc_ops is exported as default_qdisc_ops is it possible this is how rdev->ops is NULL Seems unlikely, but thought I'd point it out. On Fri, Jan 10, 2020 at 11:13 AM Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > > On Fri, 2020-01-10 at 11:11 -0800, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: 2f806c2a Merge branch 'net-ungraft-prio' > > git tree: net > > console output: https://syzkaller.appspot.com/x/log.txt?x=1032069ee00000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=5c90cac8f1f8c619 > > dashboard link: https://syzkaller.appspot.com/bug?extid=34b582cf32c1db008f8e > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > > > Unfortunately, I don't have any reproducer for this crash yet. > > It's quite likely also in virt_wifi, evidently that has some issues. > > Cody, did you take a look at the previous report by any chance? > > johannes >