------------[ cut here ]------------
WARNING: CPU: 0 PID: 27984 at kernel/events/core.c:1690 perf_group_attach kernel/events/core.c:1690 [inline]
WARNING: CPU: 0 PID: 27984 at kernel/events/core.c:1690 add_event_to_ctx+0x84a/0xa70 kernel/events/core.c:2291
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 27984 Comm: syz-executor.4 Not tainted 4.14.151+ #0
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xca/0x134 lib/dump_stack.c:53
 panic+0x1f1/0x3da kernel/panic.c:183
 __warn.cold+0x2f/0x33 kernel/panic.c:547
 report_bug+0x20a/0x248 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bf/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x18/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:perf_group_attach kernel/events/core.c:1690 [inline]
RIP: 0010:add_event_to_ctx+0x84a/0xa70 kernel/events/core.c:2291
RSP: 0018:ffff8881dba07ec8 EFLAGS: 00010006
RAX: ffff88819342c680 RBX: ffff888198f79100 RCX: 1ffff1103b745b1f
RDX: 0000000000010000 RSI: 00000000ffffffff RDI: ffff888198f79308
RBP: ffff888194b36e80 R08: 0000000000007c35 R09: ffffed103b745b02
R10: ffffed103b745b01 R11: ffff8881dba2d80b R12: ffff8881dba30fc0
R13: ffff888194b36f0c R14: ffff8881dba2d8f0 R15: ffff8881dba2d8f0
 __perf_install_in_context+0x241/0x2f0 kernel/events/core.c:2438
 remote_function kernel/events/core.c:87 [inline]
 remote_function+0x110/0x190 kernel/events/core.c:67
 flush_smp_call_function_queue+0xae/0x320 kernel/smp.c:243
 smp_call_function_single_interrupt+0xc7/0x530 arch/x86/kernel/smp.c:304
 call_function_single_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:814
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:lock_is_held_type+0xfb/0x150 kernel/locking/lockdep.c:4034
RSP: 0018:ffff88819d68fab8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04
RAX: 0000000000000007 RBX: 0000000000000246 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000246
RBP: ffff88819342c680 R08: 0000000000000422 R09: ffffed103b7444fa
R10: ffffed103b7444f9 R11: ffff8881dba227cf R12: 0000000000000000
R13: ffff8881d9ab85c0 R14: dffffc0000000000 R15: ffff8881a6d90540
 lock_is_held include/linux/lockdep.h:437 [inline]
 rcu_read_lock_sched_held+0x10a/0x130 kernel/rcu/update.c:116
 trace_block_touch_buffer include/trace/events/block.h:45 [inline]
 touch_buffer fs/buffer.c:65 [inline]
 __find_get_block+0x7cc/0x960 fs/buffer.c:1361
 sb_find_get_block include/linux/buffer_head.h:338 [inline]
 recently_deleted fs/ext4/ialloc.c:690 [inline]
 find_inode_bit.isra.0+0x1f3/0x4e0 fs/ext4/ialloc.c:730
 __ext4_new_inode+0x109d/0x4850 fs/ext4/ialloc.c:922
 ext4_symlink+0x352/0xa30 fs/ext4/namei.c:3275
 vfs_symlink2+0x32a/0x560 fs/namei.c:4292
 SYSC_symlinkat fs/namei.c:4325 [inline]
 SyS_symlinkat+0x116/0x1e0 fs/namei.c:4305
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459c77
RSP: 002b:00007ffd909ed9b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000459c77
RDX: 00007ffd909eda53 RSI: 00000000004bf959 RDI: 00007ffd909eda40
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000013
R10: 0000000000000075 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffd909ed9f0 R14: 0000000000000000 R15: 00007ffd909eda00
Kernel Offset: 0xfa00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Rebooting in 86400 seconds..