syzbot has bisected this issue to: commit 22849b5ea5952d853547cc5e0651f34a246b2a4f Author: Leon Romanovsky <leonro@xxxxxxxxxx> Date: Thu Oct 21 14:16:14 2021 +0000 devlink: Remove not-executed trap policer notifications bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16464095b00000 start commit: 158b515f703e tun: avoid double free in tun_free_netdev git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=15464095b00000 console output: https://syzkaller.appspot.com/x/log.txt?x=11464095b00000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa556098924b78f0 dashboard link: https://syzkaller.appspot.com/bug?extid=bc9e2d2dbcb347dd215a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13ff127eb00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11bedb6db00000 Reported-by: syzbot+bc9e2d2dbcb347dd215a@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 22849b5ea595 ("devlink: Remove not-executed trap policer notifications") For information about bisection process see: https://goo.gl/tpsmEJ#bisection