kasan: CONFIG_KASAN_INLINE enabled
------------[ cut here ]------------
WARNING: CPU: 3 PID: 6158 at kernel/futex.c:818 get_pi_state+0x15b/0x190 kernel/futex.c:818
Kernel panic - not syncing: panic_on_warn set ...

CPU: 3 PID: 6158 Comm: syz-executor6 Not tainted 4.14.0-rc1-next-20170918+ #6
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 panic+0x1e4/0x417 kernel/panic.c:181
 __warn+0x1c4/0x1d9 kernel/panic.c:542
 report_bug+0x211/0x2d0 lib/bug.c:183
 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:178
 do_trap_no_signal arch/x86/kernel/traps.c:212 [inline]
 do_trap+0x260/0x390 arch/x86/kernel/traps.c:261
 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:298
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:311
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905
RIP: 0010:get_pi_state+0x15b/0x190 kernel/futex.c:818
RSP: 0018:ffff88004e4cf088 EFLAGS: 00010297
RAX: ffff88006c880500 RBX: 0000000000000000 RCX: 1ffff10009c99e16
RDX: 0000000000000000 RSI: 1ffff1000d9101b7 RDI: ffff88003cd5a800
RBP: ffff88004e4cf118 R08: ffff88006c880ce8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff10009c99e12
R13: ffff88003cd5a800 R14: 1ffff10009c99e16 R15: ffff88003cd5a8c0
 exit_pi_state_list+0x543/0x780 kernel/futex.c:927
 mm_release+0x46d/0x590 kernel/fork.c:1126
 exit_mm kernel/exit.c:499 [inline]
 do_exit+0x481/0x1b40 kernel/exit.c:852
 do_group_exit+0x149/0x400 kernel/exit.c:968
 get_signal+0x7e8/0x17e0 kernel/signal.c:2334
 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:808
 exit_to_usermode_loop+0x224/0x300 arch/x86/entry/common.c:158
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath+0x42f/0x500 arch/x86/entry/common.c:266
 entry_SYSCALL_64_fastpath+0xbc/0xbe
RIP: 0033:0x4474f9
RSP: 002b:00007f816bc51c08 EFLAGS: 00000282 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 000000002000cffc RCX: 00000000004474f9
RDX: 0000000000000004 RSI: 000080000000000b RDI: 000000002000cffc
RBP: 00000000007080b0 R08: 0000000020048000 R09: 0000000000020000
R10: 0000000020edfff0 R11: 0000000000000282 R12: 00000000ffffffff
R13: 00000000000008b0 R14: 00000000006e3970 R15: 000080000000000b
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 6143 Comm: syz-executor6 Not tainted 4.14.0-rc1-next-20170918+ #6
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task: ffff88003ac685c0 task.stack: ffff880039668000
RIP: 0010:perf_trace_lock+0xce/0x860 include/trace/events/lock.h:38
RSP: 0018:ffff88003966ec88 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 1ffff100072cdd99 RCX: 1ffff100079ab501
RDX: 0000000000000100 RSI: 00000000000007e8 RDI: ffffffff85b235e0
RBP: ffff88003966ee10 R08: 00000000000007e8 R09: ffff88003966e940
R10: ffff88003966e8b8 R11: 1ffff1000758d34b R12: ffff88003966ede8
R13: ffff88003966efa8 R14: 0000000000000000 R15: ffffffff85b23560
FS:  00007f816bc73700(0000) GS:ffff88003ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020ce9000 CR3: 000000006bde4000 CR4: 00000000000026f0
Call Trace:
 trace_lock_release include/trace/events/lock.h:57 [inline]
 lock_release+0x7b0/0xd70 kernel/locking/lockdep.c:4020
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:166 [inline]
 _raw_spin_unlock_irq+0x1a/0x70 kernel/locking/spinlock.c:199
 put_pi_state+0x252/0x520 kernel/futex.c:842
 exit_pi_state_list+0x55c/0x780 kernel/futex.c:931
 mm_release+0x46d/0x590 kernel/fork.c:1126
 exit_mm kernel/exit.c:499 [inline]
 do_exit+0x481/0x1b40 kernel/exit.c:852
 do_group_exit+0x149/0x400 kernel/exit.c:968
 get_signal+0x7e8/0x17e0 kernel/signal.c:2334
 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:808
 exit_to_usermode_loop+0x224/0x300 arch/x86/entry/common.c:158
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath+0x42f/0x500 arch/x86/entry/common.c:266
 entry_SYSCALL_64_fastpath+0xbc/0xbe
RIP: 0033:0x4474f9
RSP: 002b:00007f816bc72cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 0000000000708028 RCX: 00000000004474f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000708028
RBP: 0000000000708000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f816bc739c0 R15: 00007f816bc73700
Code: 10 00 0f 85 2d 05 00 00 49 8d 40 18 4d 8b b7 80 00 00 00 48 89 c2 48 89 85 b0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 62 07 00 00 49 8b 78 18 48 85 ff 0f 84 af 03 
RIP: perf_trace_lock+0xce/0x860 include/trace/events/lock.h:38 RSP: ffff88003966ec88
---[ end trace 793500069667ac88 ]---
Shutting down cpus with NMI
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..