WARNING: CPU: 1 PID: 20419 at fs/namespace.c:1091 cleanup_mnt+0x118/0x160 fs/namespace.c:1091
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 20419 Comm: syz-executor.4 Not tainted 5.0.0-rc7+ #79
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 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+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:cleanup_mnt+0x118/0x160 fs/namespace.c:1091
Code: 1c 01 00 00 48 c7 c7 c0 cd a5 88 e8 e2 f3 44 05 48 8d 7b 38 48 c7 c6 d0 a3 b7 81 e8 a2 6a a6 ff 5b 41 5c 5d c3 e8 f8 2a b8 ff <0f> 0b e9 0e ff ff ff e8 ec 2a b8 ff 48 89 df e8 64 c7 05 00 e9 31
RSP: 0018:ffff88800b8bf9e0 EFLAGS: 00010293
RAX: ffff88804256e280 RBX: ffff88805e174a00 RCX: ffffffff81b7b594
RDX: 0000000000000000 RSI: ffffffff81b7b688 RDI: 0000000000000005
RBP: ffff88800b8bf9f0 R08: ffff88804256e280 R09: fffffbfff11024e6
R10: fffffbfff11024e5 R11: ffffffff8881272b R12: 00000000000142e0
R13: ffff88805e174a30 R14: ffff88805e174a70 R15: ffff88805e174a78
 mntput_no_expire fs/namespace.c:1175 [inline]
 mntput_no_expire+0x7d4/0x960 fs/namespace.c:1117
 mntput fs/namespace.c:1185 [inline]
 create_mnt_ns fs/namespace.c:3005 [inline]
 kern_unmount+0xbd/0xf0 fs/namespace.c:2995
kobject: 'rfkill96' (000000002048df2d): kobject_uevent_env
 mq_put_mnt+0x37/0x41 ipc/mqueue.c:1557
 put_ipc_ns ipc/namespace.c:151 [inline]
 put_ipc_ns+0x5c/0x180 ipc/namespace.c:146
 free_nsproxy+0xd3/0x230 kernel/nsproxy.c:180
 switch_task_namespaces+0xb3/0xd0 kernel/nsproxy.c:229
 exit_task_namespaces+0x18/0x20 kernel/nsproxy.c:234
 do_exit+0x927/0x2fd0 kernel/exit.c:874
 do_group_exit+0x135/0x370 kernel/exit.c:979
 get_signal+0x399/0x1d50 kernel/signal.c:2575
kobject: 'rfkill96' (000000002048df2d): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill96'
 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816
kobject: 'rfkill96' (000000002048df2d): kobject_cleanup, parent           (null)
 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_32_irqs_on arch/x86/entry/common.c:341 [inline]
 do_fast_syscall_32+0xa9d/0xc98 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7fad869
Code: Bad RIP value.
RSP: 002b:00000000f5da912c EFLAGS: 00000292 ORIG_RAX: 00000000000000f0
RAX: fffffffffffffe00 RBX: 000000000814af68 RCX: 0000000000000080
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000814af6c
RBP: 00000000f5da9228 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..