Warning: Permanently added '10.128.0.198' (ECDSA) to the list of known hosts.
[   51.094327] random: sshd: uninitialized urandom read (32 bytes read)
[   51.190211] audit: type=1400 audit(1561017108.865:7): avc:  denied  { map } for  pid=1797 comm="syz-executor299" path="/root/syz-executor299467794" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[   51.260777] 
[   51.262523] ======================================================
[   51.268830] WARNING: possible circular locking dependency detected
[   51.275232] 4.14.128+ #10 Not tainted
[   51.279125] ------------------------------------------------------
[   51.285570] syz-executor299/1797 is trying to acquire lock:
[   51.291260]  (pmus_lock){+.+.}, at: [<        (ptrval)>] perf_swevent_init+0x123/0x4e0
[   51.299308] 
[   51.299308] but task is already holding lock:
[   51.305739]  (&cpuctx_mutex/1){+.+.}, at: [<        (ptrval)>] perf_event_ctx_lock_nested+0x14d/0x2c0
[   51.315314] 
[   51.315314] which lock already depends on the new lock.
[   51.315314] 
[   51.323810] 
[   51.323810] the existing dependency chain (in reverse order) is:
[   51.331863] 
[   51.331863] -> #2 (&cpuctx_mutex/1){+.+.}:
[   51.337813] 
[   51.337813] -> #1 (&cpuctx_mutex){+.+.}:
[   51.343335] 
[   51.343335] -> #0 (pmus_lock){+.+.}:
[   51.348508] 
[   51.348508] other info that might help us debug this:
[   51.348508] 
[   51.356631] Chain exists of:
[   51.356631]   pmus_lock --> &cpuctx_mutex --> &cpuctx_mutex/1
[   51.356631] 
[   51.367308]  Possible unsafe locking scenario:
[   51.367308] 
[   51.373353]        CPU0                    CPU1
[   51.378116]        ----                    ----
[   51.382764]   lock(&cpuctx_mutex/1);
[   51.386465]                                lock(&cpuctx_mutex);
[   51.392623]                                lock(&cpuctx_mutex/1);
[   51.399021]   lock(pmus_lock);
[   51.402421] 
[   51.402421]  *** DEADLOCK ***
[   51.402421] 
[   51.408649] 2 locks held by syz-executor299/1797:
[   51.413470]  #0:  (&pmus_srcu){....}, at: [<        (ptrval)>] perf_event_alloc.part.0+0xadd/0x1e70
[   51.422793]  #1:  (&cpuctx_mutex/1){+.+.}, at: [<        (ptrval)>] perf_event_ctx_lock_nested+0x14d/0x2c0
[   51.432758] 
[   51.432758] stack backtrace:
[   51.437365] CPU: 1 PID: 1797 Comm: syz-executor299 Not tainted 4.14.128+ #10
[   51.444533] Call Trace:
[   51.447123]  dump_stack+0xb9/0x10e
[   51.450657]  print_circular_bug.isra.0.cold+0x2dc/0x425
[   51.456029]  ? __lock_acquire+0x2d83/0x3fa0
[   51.460353]  ? __lock_acquire+0x56a/0x3fa0
[   51.464585]  ? trace_hardirqs_on+0x10/0x10
[   51.468818]  ? trace_hardirqs_on+0x10/0x10
[   51.473058]  ? __lock_acquire+0x56a/0x3fa0
[   51.477289]  ? kasan_kmalloc.part.0+0xa6/0xd0
[   51.481817]  ? __save_stack_trace+0x7a/0xf0
[   51.486141]  ? lock_acquire+0x10f/0x380
[   51.490107]  ? perf_swevent_init+0x123/0x4e0
[   51.494517]  ? perf_swevent_init+0x123/0x4e0
[   51.498912]  ? __mutex_lock+0xf7/0x1430
[   51.502952]  ? perf_swevent_init+0x123/0x4e0
[   51.507352]  ? __mutex_lock+0x6aa/0x1430
[   51.511398]  ? perf_swevent_init+0x123/0x4e0
[   51.515803]  ? perf_event_ctx_lock_nested+0x14d/0x2c0
[   51.521125]  ? perf_try_init_event+0xf1/0x200
[   51.525606]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[   51.531040]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[   51.536479]  ? trace_hardirqs_on+0x10/0x10
[   51.540709]  ? perf_event_ctx_lock_nested+0x117/0x2c0
[   51.545891]  ? lock_downgrade+0x5d0/0x5d0
[   51.550111]  ? lock_acquire+0x10f/0x380
[   51.554088]  ? perf_event_ctx_lock_nested+0x39/0x2c0
[   51.559173]  ? perf_swevent_init+0x123/0x4e0
[   51.563574]  ? perf_swevent_init+0x123/0x4e0
[   51.567971]  ? perf_event_ctx_lock_nested+0x14d/0x2c0
[   51.573159]  ? perf_event_ctx_lock_nested+0x247/0x2c0
[   51.578350]  ? perf_try_init_event+0xe5/0x200
[   51.582836]  ? perf_event_alloc.part.0+0xcc5/0x1e70
[   51.587838]  ? SyS_perf_event_open+0x6eb/0x2530
[   51.592489]  ? perf_bp_event+0x1a0/0x1a0
[   51.596543]  ? do_syscall_64+0x43/0x510
[   51.600500]  ? perf_bp_event+0x1a0/0x1a0
[   51.604544]  ? do_syscall_64+0x19b/0x510
[   51.608740]  ? entry_SYSCALL_64_after_h