netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9734 at kernel/events/core.c:1690 perf_group_attach kernel/events/core.c:1690 [inline]
WARNING: CPU: 0 PID: 9734 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: 9734 Comm: syz-executor.1 Not tainted 4.14.142+ #0
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xca/0x134 lib/dump_stack.c:53
 panic+0x1ea/0x3d3 kernel/panic.c:182
 __warn.cold+0x2f/0x3a kernel/panic.c:546
 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:ffff8881aa2ffae0 EFLAGS: 00010016
RAX: 0000000000040000 RBX: ffff8881d55eb300 RCX: 0000000000000957
RDX: ffffffff813f533a RSI: ffffc9000b1f7000 RDI: ffff8881d55eb508
RBP: ffff88819c3ed500 R08: 0000000000006bf7 R09: ffffed103b705d02
R10: ffffed103b705d01 R11: ffff8881db82e80b R12: ffff8881db831fc0
R13: ffff88819c3ed58c R14: ffff8881db82e8f0 R15: ffff8881db82e8f0
 __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
 generic_exec_single+0x1b0/0x2e0 kernel/smp.c:153
 smp_call_function_single+0x103/0x340 kernel/smp.c:299
 cpu_function_call kernel/events/core.c:141 [inline]
 perf_install_in_context+0x2c6/0x320 kernel/events/core.c:2474
 SYSC_perf_event_open kernel/events/core.c:10366 [inline]
 SyS_perf_event_open+0x19bb/0x2560 kernel/events/core.c:9988
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4598e9
RSP: 002b:00007f1ff80e5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004598e9
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f1ff80e66d4
R13: 00000000004c671d R14: 00000000004db7d8 R15: 00000000ffffffff
Kernel Offset: 0x36000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Rebooting in 86400 seconds..