BUG: unable to handle page fault for address: ffffc90017689030 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10c00067 P4D 10c00067 PUD 10db1067 PMD 128a2067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:bpf_dispatcher_nop_func include/linux/bpf.h:651 [inline] RIP: 0010:__bpf_trace_run kernel/trace/bpf_trace.c:2085 [inline] RIP: 0010:bpf_trace_run3+0x143/0x3f0 kernel/trace/bpf_trace.c:2123 Code: f7 ff 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 9f 02 00 00 48 8d 73 38 48 8d 7c 24 28 53 30 e8 05 19 f7 ff e8 a0 ea 7e 07 31 ff 89 c3 89 c6 e8 75 20 RSP: 0018:ffffc90000cd7448 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffffc90017689000 RCX: ffffffff817bbe2e RDX: 0000000000000000 RSI: ffffc90017689038 RDI: ffffc90000cd7470 RBP: 1ffff9200019ae8a R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff817bbd9c R11: 0000000000000000 R12: 0000000000000001 R13: ffff888011925340 R14: 0000000000000001 R15: ffff88801511b780 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90017689030 CR3: 0000000051cb3000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __bpf_trace_sched_switch+0xdc/0x120 include/trace/events/sched.h:222 __traceiter_sched_switch+0x69/0xb0 include/trace/events/sched.h:222 trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x11a6/0x21a0 kernel/sched/core.c:5075 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:5238 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35 __local_bh_enable_ip+0xfb/0x110 kernel/softirq.c:203 spin_unlock_bh include/linux/spinlock.h:399 [inline] addrconf_ifdown.isra.0+0x50a/0x1590 net/ipv6/addrconf.c:3758 addrconf_notify+0x55c/0x23f0 net/ipv6/addrconf.c:3629 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2040 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline] call_netdevice_notifiers net/core/dev.c:2066 [inline] rollback_registered_many+0x92e/0x14c0 net/core/dev.c:9496 unregister_netdevice_many.part.0+0x1a/0x2f0 net/core/dev.c:10736 unregister_netdevice_many net/core/dev.c:10735 [inline] default_device_exit_batch+0x30c/0x3d0 net/core/dev.c:11219 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:190 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:604 process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Modules linked in: CR2: ffffc90017689030 ---[ end trace 8aa805bec15e5808 ]--- RIP: 0010:bpf_dispatcher_nop_func include/linux/bpf.h:651 [inline] RIP: 0010:__bpf_trace_run kernel/trace/bpf_trace.c:2085 [inline] RIP: 0010:bpf_trace_run3+0x143/0x3f0 kernel/trace/bpf_trace.c:2123 Code: f7 ff 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 9f 02 00 00 48 8d 73 38 48 8d 7c 24 28 53 30 e8 05 19 f7 ff e8 a0 ea 7e 07 31 ff 89 c3 89 c6 e8 75 20 RSP: 0018:ffffc90000cd7448 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffffc90017689000 RCX: ffffffff817bbe2e RDX: 0000000000000000 RSI: ffffc90017689038 RDI: ffffc90000cd7470 RBP: 1ffff9200019ae8a R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff817bbd9c R11: 0000000000000000 R12: 0000000000000001 R13: ffff888011925340 R14: 0000000000000001 R15: ffff88801511b780 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90017689030 CR3: 0000000051cb3000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400