syzbot suspects this issue was fixed by commit: commit 451dc48c806a7ce9fbec5e7a24ccf4b2c936e834 Author: Alexander Aring <aahringo@xxxxxxxxxx> Date: Fri Nov 12 03:09:16 2021 +0000 net: ieee802154: handle iftypes as u32 bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1084d10db00000 start commit: ec681c53f8d2 Merge tag 'net-5.15-rc6' of git://git.kernel... git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=bab9d35f204746a7 dashboard link: https://syzkaller.appspot.com/bug?extid=7bf7b22759195c9a21e9 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14398d94b00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=117fc40cb00000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: net: ieee802154: handle iftypes as u32 For information about bisection process see: https://goo.gl/tpsmEJ#bisection