capability: warning: `syz-executor3' uses deprecated v2 capabilities in a way that may be insecure
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3845 at kernel/locking/mutex.c:873 __mutex_trylock_slowpath kernel/locking/mutex.c:873 [inline]
WARNING: CPU: 0 PID: 3845 at kernel/locking/mutex.c:873 mutex_trylock+0x2f9/0x3e0 kernel/locking/mutex.c:908
DEBUG_LOCKS_WARN_ON(in_interrupt())[   82.108492] Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 3845 Comm: syz-executor3 Not tainted 4.9.124-g09eb2ba #83
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801db2077f8 ffffffff81eb95e9 ffffffff83c48ac0 00000000ffffffff
 0000000000000000 0000000000000000 0000000000000369 ffff8801db2078b8
 ffffffff81423eb5 0000000041b58ab3 ffffffff843bb8e8 ffffffff81423cf6
Call Trace:
 <IRQ> [   82.161428]  [<ffffffff81eb95e9>] __dump_stack lib/dump_stack.c:15 [inline]
 <IRQ> [   82.161428]  [<ffffffff81eb95e9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81423eb5>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff814241a1>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff81138252>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565
 [<ffffffff839f6af9>] __mutex_trylock_slowpath kernel/locking/mutex.c:873 [inline]
 [<ffffffff839f6af9>] mutex_trylock+0x2f9/0x3e0 kernel/locking/mutex.c:908
 [<ffffffff81284d69>] exp_funnel_lock kernel/rcu/tree_exp.h:256 [inline]
 [<ffffffff81284d69>] _synchronize_rcu_expedited+0x339/0x840 kernel/rcu/tree_exp.h:569
 [<ffffffff812862c3>] synchronize_rcu_expedited kernel/rcu/tree_exp.h:687 [inline]
 [<ffffffff812862c3>] synchronize_rcu.part.62+0xd3/0x110 kernel/rcu/tree_plugin.h:682
 [<ffffffff81286327>] synchronize_rcu+0x27/0x90 kernel/rcu/tree_plugin.h:685
 [<ffffffff836c4baa>] __l2tp_session_unhash+0x38a/0x520 net/l2tp/l2tp_core.c:1796
 [<ffffffff836c4f37>] l2tp_tunnel_closeall+0x1f7/0x350 net/l2tp/l2tp_core.c:1364
 [<ffffffff836c57f2>] l2tp_tunnel_destruct+0x2f2/0x590 net/l2tp/l2tp_core.c:1324
 [<ffffffff830281f5>] __sk_destruct+0x55/0x590 net/core/sock.c:1428
 [<ffffffff812899ee>] __rcu_reclaim kernel/rcu/rcu.h:118 [inline]
 [<ffffffff812899ee>] rcu_do_batch kernel/rcu/tree.c:2789 [inline]
 [<ffffffff812899ee>] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline]
 [<ffffffff812899ee>] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline]
 [<ffffffff812899ee>] rcu_process_callbacks+0x8ae/0x12b0 kernel/rcu/tree.c:3037
 [<ffffffff83a085c0>] __do_softirq+0x210/0x940 kernel/softirq.c:288
 [<ffffffff8114d554>] invoke_softirq kernel/softirq.c:368 [inline]
 [<ffffffff8114d554>] irq_exit+0x114/0x150 kernel/softirq.c:409
 [<ffffffff83a071a1>] exiting_irq arch/x86/include/asm/apic.h:669 [inline]
 [<ffffffff83a071a1>] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:962
 [<ffffffff83a03330>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:648
 <EOI> [   82.433085]  [<ffffffff8124553b>] ? do_raw_spin_lock+0xb/0x1b0 kernel/locking/spinlock_debug.c:111
 [<ffffffff8165552a>] spin_lock include/linux/spinlock.h:302 [inline]
 [<ffffffff8165552a>] fsnotify_destroy_marks+0x13a/0x1e0 fs/notify/mark.c:246
 [<ffffffff81651d20>] fsnotify_clear_marks_by_inode fs/notify/fsnotify.h:51 [inline]
 [<ffffffff81651d20>] __fsnotify_inode_delete+0x20/0x30 fs/notify/fsnotify.c:35
 [<ffffffff815d2b56>] fsnotify_inode_delete include/linux/fsnotify.h:105 [inline]
 [<ffffffff815d2b56>] __destroy_inode+0x36/0x220 fs/inode.c:236
 [<ffffffff815d2d8e>] destroy_inode+0x4e/0x120 fs/inode.c:262
 [<ffffffff815d318b>] evict+0x32b/0x4f0 fs/inode.c:570
 [<ffffffff815d3b21>] iput_final fs/inode.c:1516 [inline]
 [<ffffffff815d3b21>] iput+0x371/0x900 fs/inode.c:1543
 [<ffffffff815bf647>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:367
 [<ffffffff815c1bb0>] __dentry_kill+0x280/0x4c0 fs/dcache.c:569
 [<ffffffff815c5f0f>] dentry_kill fs/dcache.c:610 [inline]
 [<ffffffff815c5f0f>] dput.part.29+0x5cf/0x7b0 fs/dcache.c:827
 [<ffffffff815c610f>] dput+0x1f/0x30 fs/dcache.c:789
 [<ffffffff8157cc3f>] __fput+0x42f/0x700 fs/file_table.c:226
 [<ffffffff8157cf95>] ____fput+0x15/0x20 fs/file_table.c:244
 [<ffffffff8119a66c>] task_work_run+0x10c/0x180 kernel/task_work.c:116
 [<ffffffff8100559c>] tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 [<ffffffff8100559c>] exit_to_usermode_loop+0xfc/0x120 arch/x86/entry/common.c:161
 [<ffffffff810064d4>] prepare_exit_to_usermode arch/x86/entry/common.c:191 [inline]
 [<ffffffff810064d4>] syscall_return_slowpath arch/x86/entry/common.c:260 [inline]
 [<ffffffff810064d4>] do_syscall_64+0x364/0x490 arch/x86/entry/common.c:287
 [<ffffffff83a019d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..