audit: type=1400 audit(1594281793.226:264): avc:  denied  { setattr } for  pid=6424 comm="syz-fuzzer" path="/root/syzkaller-testdir147629826/syzkaller.qRi2wT/731/proc/1/attr" dev="proc" ino=100795 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dir permissive=1
bond5 (unregistering): Released all slaves
bond4 (unregistering): Released all slaves
------------[ cut here ]------------
WARNING: CPU: 0 PID: 30592 at net/core/dev.c:8207 rollback_registered_many.cold+0x169/0x1b8 net/core/dev.c:8207
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 30592 Comm: kworker/u4:0 Not tainted 4.19.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x61 kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:rollback_registered_many.cold+0x169/0x1b8 net/core/dev.c:8207
Code: 44 24 08 eb cd 48 89 c7 48 89 44 24 08 e8 dd dd e8 fb 48 8b 44 24 08 eb cf e8 b1 bf b2 fb 48 c7 c7 c0 2d 2a 88 e8 e4 d2 9d fb <0f> 0b e9 1a c0 ff ff e8 99 bf b2 fb 48 c7 c7 c0 2d 2a 88 e8 cc d2
RSP: 0018:ffff8880498e7988 EFLAGS: 00010282
RAX: 0000000000000024 RBX: ffff8880a5601e00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8154cd91 RDI: ffffed100931cf23
RBP: ffff8880498e7b60 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000086aecf01 R14: ffffffff84559090 R15: ffff8880498e7a50
 unregister_netdevice_many.part.0+0x1a/0x300 net/core/dev.c:9310
 unregister_netdevice_many net/core/dev.c:9309 [inline]
 default_device_exit_batch+0x2fa/0x3c0 net/core/dev.c:9781
 ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156
 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553
 process_one_work+0x864/0x1570 kernel/workqueue.c:2155
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298
 kthread+0x30b/0x410 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..