WARNING in debug_rt_mutex

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-49	WARNING in debug_rt_mutex_unlock				1	2235d	2235d	0/3	auto-closed as invalid on 2019/02/22 14:34
audit: type=1400 audit(1520509885.190:52): avc:  denied  { setopt } for  pid=8194 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
DEBUG_LOCKS_WARN_ON(rt_mutex_owner(lock) != current)
WARNING: CPU: 0 PID: 8205 at kernel/locking/rtmutex-debug.c:145 debug_rt_mutex_unlock+0x167/0x1a0 kernel/locking/rtmutex-debug.c:145
audit: type=1400 audit(1520509885.191:53): avc:  denied  { getattr } for  pid=8194 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8205 Comm: syz-executor1 Not tainted 4.16.0-rc4+ #345
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x24d lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178
 fixup_bug arch/x86/kernel/traps.c:247 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:986
RIP: 0010:debug_rt_mutex_unlock+0x167/0x1a0 kernel/locking/rtmutex-debug.c:145
RSP: 0018:ffff8801b25d6ff0 EFLAGS: 00010086
RAX: dffffc0000000008 RBX: 1ffff100364badfe RCX: ffffffff815abb5e
RDX: 0000000000000000 RSI: 1ffff100364badae RDI: 0000000000000000
RBP: ffff8801b25d7070 R08: ffffffff86f39658 R09: 1ffff100364bad84
R10: ffff8801b25d6fd8 R11: ffffffff86f39658 R12: 1ffff100364bae02
R13: 0000000000000000 R14: dffffc0000000000 R15: dffffc0000000000
 __rt_mutex_futex_unlock+0xa4/0x1b0 kernel/locking/rtmutex.c:1598
 rt_mutex_futex_unlock+0xa8/0x110 kernel/locking/rtmutex.c:1622
 exit_pi_state_list+0x62d/0x920 kernel/futex.c:935
 mm_release+0x46d/0x590 kernel/fork.c:1180
 exit_mm kernel/exit.c:499 [inline]
 do_exit+0x484/0x1ad0 kernel/exit.c:852
 do_group_exit+0x149/0x400 kernel/exit.c:968
 get_signal+0x73a/0x16d0 kernel/signal.c:2469
 do_signal+0x90/0x1e90 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0x258/0x2f0 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:265 [inline]
 do_syscall_64+0x6ec/0x940 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x453e69
RSP: 002b:00007fe61ea0cce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000072bf80 RCX: 0000000000453e69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000072bf80
RBP: 000000000072bf80 R08: 0000000000000000 R09: 000000000072bf58
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000a3e8ef R14: 00007fe61ea0d9c0 R15: 0000000000000001
Shutting down cpus with NMI
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..