[?25l[?1c7[1[   31.772346] audit: type=1800 audit(1581655806.848:34): pid=7083 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0
G[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   35.647892] random: sshd: uninitialized urandom read (32 bytes read)
[   35.870606] audit: type=1400 audit(1581655810.978:35): avc:  denied  { map } for  pid=7258 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
[   35.922117] random: sshd: uninitialized urandom read (32 bytes read)
[   36.653215] random: sshd: uninitialized urandom read (32 bytes read)
[   36.843382] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.24' (ECDSA) to the list of known hosts.
[   42.380558] random: sshd: uninitialized urandom read (32 bytes read)
executing program
executing program
executing program
executing program
executing program
[   42.505951] audit: type=1400 audit(1581655817.608:36): avc:  denied  { map } for  pid=7270 comm="syz-executor946" path="/root/syz-executor946336419" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[   42.538010] FAULT_INJECTION: forcing a failure.
[   42.538010] name fail_futex, interval 1, probability 0, space 0, times 1
[   42.542205] FAULT_INJECTION: forcing a failure.
executing program
[   42.542205] name fail_futex, interval 1, probability 0, space 0, times 1
[   42.555051] FAULT_INJECTION: forcing a failure.
[   42.555051] name fail_futex, interval 1, probability 0, space 0, times 1
[   42.563995] FAULT_INJECTION: forcing a failure.
[   42.563995] name fail_futex, interval 1, probability 0, space 0, times 1
[   42.584587] CPU: 1 PID: 7286 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   42.592551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   42.601909] Call Trace:
[   42.604496]  dump_stack+0x142/0x197
[   42.608217]  should_fail.cold+0x10f/0x159
[   42.612474]  get_futex_key+0xb88/0x1400
[   42.615545] FAULT_INJECTION: forcing a failure.
[   42.615545] name fail_futex, interval 1, probability 0, space 0, times 1
[   42.616442]  ? futex_lock_pi_atomic+0x220/0x220
[   42.616452]  ? up_read+0x1a/0x40
[   42.616462]  futex_wake+0xd9/0x430
[   42.616473]  ? tty_ldisc_deref+0x35/0x40
[   42.643412]  ? get_futex_key+0x1400/0x1400
[   42.647649]  ? lock_downgrade+0x740/0x740
[   42.651790]  do_futex+0x290/0x19e0
[   42.655317]  ? tty_ldisc_deref+0x35/0x40
[   42.659363]  ? tty_ioctl+0x485/0x1320
[   42.663166]  ? tty_vhangup+0x30/0x30
[   42.666888]  ? futex_exit_release+0x70/0x70
[   42.671199]  ? __might_sleep+0x93/0xb0
[   42.675080]  ? __fget+0x210/0x370
[   42.678526]  ? tty_vhangup+0x30/0x30
[   42.682240]  ? do_vfs_ioctl+0xef/0x1060
[   42.686204]  ? selinux_file_mprotect+0x5d0/0x5d0
[   42.690952]  ? lock_downgrade+0x740/0x740
[   42.695089]  ? ioctl_preallocate+0x1c0/0x1c0
[   42.699488]  SyS_futex+0x215/0x310
[   42.703029]  ? do_futex+0x19e0/0x19e0
[   42.706829]  ? do_syscall_64+0x53/0x640
[   42.710802]  ? do_futex+0x19e0/0x19e0
[   42.714593]  do_syscall_64+0x1e8/0x640
[   42.718474]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   42.723320]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   42.728508] RIP: 0033:0x4469a9
[   42.731682] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   42.739379] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   42.746642] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   42.753900] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   42.761161] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   42.768429] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   42.775809] CPU: 0 PID: 7280 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   42.783692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   42.793169] Call Trace:
[   42.795763]  dump_stack+0x142/0x197
[   42.799383]  should_fail.cold+0x10f/0x159
[   42.803529]  get_futex_key+0xb88/0x1400
[   42.807508]  ? futex_lock_pi_atomic+0x220/0x220
[   42.812173]  ? up_read+0x1a/0x40
[   42.816496]  futex_wake+0xd9/0x430
[   42.820026]  ? tty_ldisc_deref+0x35/0x40
[   42.824092]  ? get_futex_key+0x1400/0x1400
[   42.827250] FAULT_INJECTION: forcing a failure.
[   42.827250] name fail_futex, interval 1, probability 0, space 0, times 1
[   42.828327]  ? lock_downgrade+0x740/0x740
[   42.828343]  do_futex+0x290/0x19e0
[   42.828350]  ? tty_ldisc_deref+0x35/0x40
[   42.828362]  ? tty_ioctl+0x485/0x1320
[   42.855219]  ? tty_vhangup+0x30/0x30
[   42.858942]  ? futex_exit_release+0x70/0x70
[   42.863265]  ? __might_sleep+0x93/0xb0
[   42.867147]  ? __fget+0x210/0x370
[   42.870597]  ? tty_vhangup+0x30/0x30
[   42.874297]  ? do_vfs_ioctl+0xef/0x1060
[   42.878258]  ? selinux_file_mprotect+0x5d0/0x5d0
[   42.883005]  ? lock_downgrade+0x740/0x740
[   42.887169]  ? ioctl_preallocate+0x1c0/0x1c0
[   42.891575]  SyS_futex+0x215/0x310
[   42.895117]  ? do_futex+0x19e0/0x19e0
[   42.898909]  ? do_syscall_64+0x53/0x640
[   42.902882]  ? do_futex+0x19e0/0x19e0
[   42.906677]  do_syscall_64+0x1e8/0x640
[   42.910576]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   42.915422]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   42.920604] RIP: 0033:0x4469a9
[   42.923784] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   42.931480] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   42.939712] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   42.946974] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   42.954235] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   42.961538] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   42.968875] CPU: 1 PID: 7289 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   42.976758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   42.986105] Call Trace:
[   42.988693]  dump_stack+0x142/0x197
[   42.992324]  should_fail.cold+0x10f/0x159
[   42.997432]  get_futex_key+0xb88/0x1400
[   43.001448]  ? futex_lock_pi_atomic+0x220/0x220
[   43.006108]  ? lock_downgrade+0x740/0x740
[   43.010263]  futex_wake+0xd9/0x430
[   43.013797]  ? get_pid_task+0x98/0x140
[   43.017676]  ? get_futex_key+0x1400/0x1400
[   43.021912]  ? __lock_acquire+0x5f7/0x4620
[   43.026147]  ? lock_downgrade+0x740/0x740
[   43.030332]  do_futex+0x290/0x19e0
[   43.033872]  ? trace_hardirqs_on+0x10/0x10
[   43.038119]  ? __fdget_pos+0x30/0xd0
[   43.041821]  ? futex_exit_release+0x70/0x70
[   43.046141]  ? __fget+0x210/0x370
[   43.049584]  ? find_held_lock+0x35/0x130
[   43.053638]  ? __fget+0x210/0x370
[   43.057091]  ? lock_downgrade+0x740/0x740
[   43.061247]  SyS_futex+0x215/0x310
[   43.064796]  ? do_futex+0x19e0/0x19e0
[   43.068586]  ? do_syscall_64+0x53/0x640
[   43.072551]  ? do_futex+0x19e0/0x19e0
[   43.076446]  do_syscall_64+0x1e8/0x640
[   43.080325]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   43.085167]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   43.090345] RIP: 0033:0x4469a9
[   43.093522] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   43.101222] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   43.108480] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   43.115760] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   43.123037] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   43.130322] R13: 00007f9662f44d10 R14: 0000000000000006 R15: 0000000000000000
[   43.137612] CPU: 0 PID: 7281 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   43.145499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.154846] Call Trace:
[   43.157431]  dump_stack+0x142/0x197
[   43.161066]  should_fail.cold+0x10f/0x159
[   43.165221]  get_futex_key+0xb88/0x1400
[   43.169204]  ? futex_lock_pi_atomic+0x220/0x220
[   43.173865]  ? up_read+0x1a/0x40
[   43.177365]  futex_wake+0xd9/0x430
[   43.180900]  ? tty_ldisc_deref+0x35/0x40
[   43.184950]  ? get_futex_key+0x1400/0x1400
[   43.189174]  ? lock_downgrade+0x740/0x740
[   43.193367]  do_futex+0x290/0x19e0
[   43.197022]  ? tty_ldisc_deref+0x35/0x40
[   43.201083]  ? tty_ioctl+0x485/0x1320
[   43.204873]  ? tty_vhangup+0x30/0x30
[   43.208585]  ? futex_exit_release+0x70/0x70
[   43.212935]  ? __might_sleep+0x93/0xb0
[   43.216814]  ? __fget+0x210/0x370
[   43.220275]  ? tty_vhangup+0x30/0x30
[   43.223989]  ? do_vfs_ioctl+0xef/0x1060
[   43.227962]  ? selinux_file_mprotect+0x5d0/0x5d0
[   43.232883]  ? lock_downgrade+0x740/0x740
[   43.237035]  ? ioctl_preallocate+0x1c0/0x1c0
[   43.241442]  SyS_futex+0x215/0x310
[   43.244971]  ? do_futex+0x19e0/0x19e0
[   43.248766]  ? do_syscall_64+0x53/0x640
[   43.252758]  ? do_futex+0x19e0/0x19e0
[   43.256579]  do_syscall_64+0x1e8/0x640
[   43.260472]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   43.265315]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   43.270551] RIP: 0033:0x4469a9
[   43.273723] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   43.281521] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   43.288785] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   43.296045] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
executing program
executing program
[   43.303422] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   43.310744] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   43.318107] CPU: 1 PID: 7288 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   43.325991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.335344] Call Trace:
[   43.337939]  dump_stack+0x142/0x197
[   43.341573]  should_fail.cold+0x10f/0x159
[   43.345731]  get_futex_key+0xb88/0x1400
[   43.346214] FAULT_INJECTION: forcing a failure.
[   43.346214] name fail_futex, interval 1, probability 0, space 0, times 0
[   43.349745]  ? futex_lock_pi_atomic+0x220/0x220
[   43.349755]  ? up_read+0x1a/0x40
[   43.349767]  futex_wake+0xd9/0x430
[   43.349776]  ? tty_ldisc_deref+0x35/0x40
[   43.349785]  ? get_futex_key+0x1400/0x1400
[   43.349797]  ? lock_downgrade+0x740/0x740
[   43.362276] FAULT_INJECTION: forcing a failure.
[   43.362276] name fail_futex, interval 1, probability 0, space 0, times 0
[   43.365823]  do_futex+0x290/0x19e0
[   43.365832]  ? tty_ldisc_deref+0x35/0x40
[   43.365843]  ? tty_ioctl+0x485/0x1320
[   43.408042]  ? tty_vhangup+0x30/0x30
[   43.411762]  ? futex_exit_release+0x70/0x70
[   43.416087]  ? __might_sleep+0x93/0xb0
[   43.419958]  ? __fget+0x210/0x370
[   43.423409]  ? tty_vhangup+0x30/0x30
[   43.427117]  ? do_vfs_ioctl+0xef/0x1060
[   43.431088]  ? selinux_file_mprotect+0x5d0/0x5d0
[   43.435832]  ? lock_downgrade+0x740/0x740
[   43.439968]  ? ioctl_preallocate+0x1c0/0x1c0
[   43.444487]  SyS_futex+0x215/0x310
[   43.448029]  ? do_futex+0x19e0/0x19e0
[   43.451817]  ? do_syscall_64+0x53/0x640
[   43.455887]  ? do_futex+0x19e0/0x19e0
[   43.459676]  do_syscall_64+0x1e8/0x640
[   43.463566]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   43.468532]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   43.473712] RIP: 0033:0x4469a9
[   43.476889] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   43.484589] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   43.492029] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   43.499292] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   43.506554] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   43.513925] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   43.521210] CPU: 0 PID: 7292 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   43.529096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.538551] Call Trace:
[   43.541150]  dump_stack+0x142/0x197
[   43.544773]  should_fail.cold+0x10f/0x159
[   43.548924]  get_futex_key+0xb88/0x1400
[   43.552897]  ? futex_lock_pi_atomic+0x220/0x220
[   43.557553]  ? up_read+0x1a/0x40
[   43.560916]  futex_wake+0xd9/0x430
[   43.564452]  ? tty_ldisc_deref+0x35/0x40
[   43.568509]  ? get_futex_key+0x1400/0x1400
[   43.572771]  ? lock_downgrade+0x740/0x740
[   43.576929]  do_futex+0x290/0x19e0
[   43.580464]  ? tty_ldisc_deref+0x35/0x40
[   43.584512]  ? tty_ioctl+0x485/0x1320
[   43.588416]  ? tty_vhangup+0x30/0x30
[   43.592137]  ? futex_exit_release+0x70/0x70
[   43.596550]  ? __might_sleep+0x93/0xb0
[   43.600424]  ? __fget+0x210/0x370
[   43.603875]  ? tty_vhangup+0x30/0x30
executing program
[   43.607591]  ? do_vfs_ioctl+0xef/0x1060
[   43.611554]  ? selinux_file_mprotect+0x5d0/0x5d0
[   43.616308]  ? lock_downgrade+0x740/0x740
[   43.620453]  ? ioctl_preallocate+0x1c0/0x1c0
[   43.624855]  SyS_futex+0x215/0x310
[   43.628515]  ? do_futex+0x19e0/0x19e0
[   43.632312]  ? do_syscall_64+0x53/0x640
[   43.636294]  ? do_futex+0x19e0/0x19e0
[   43.640101]  do_syscall_64+0x1e8/0x640
[   43.643985]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   43.648819]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   43.654011] RIP: 0033:0x4469a9
executing program
[   43.657189] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   43.664891] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   43.672146] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   43.679412] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   43.686676] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   43.694040] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   43.701312] CPU: 1 PID: 7287 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   43.709371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.718717] Call Trace:
[   43.721357]  dump_stack+0x142/0x197
[   43.724985]  should_fail.cold+0x10f/0x159
[   43.729124]  get_futex_key+0xb88/0x1400
[   43.733100]  ? futex_lock_pi_atomic+0x220/0x220
[   43.737768]  ? up_read+0x1a/0x40
[   43.741126]  futex_wake+0xd9/0x430
[   43.744676]  ? tty_ldisc_deref+0x35/0x40
[   43.748740]  ? get_futex_key+0x1400/0x1400
[   43.752993]  ? lock_downgrade+0x740/0x740
[   43.757158]  do_futex+0x290/0x19e0
[   43.760709]  ? tty_ldisc_deref+0x35/0x40
[   43.764882]  ? tty_ioctl+0x485/0x1320
[   43.768820]  ? tty_vhangup+0x30/0x30
[   43.772550]  ? futex_exit_release+0x70/0x70
[   43.776987]  ? __might_sleep+0x93/0xb0
[   43.780878]  ? __fget+0x210/0x370
[   43.784343]  ? tty_vhangup+0x30/0x30
[   43.788236]  ? do_vfs_ioctl+0xef/0x1060
[   43.792220]  ? selinux_file_mprotect+0x5d0/0x5d0
[   43.796983]  ? lock_downgrade+0x740/0x740
[   43.798643] FAULT_INJECTION: forcing a failure.
[   43.798643] name fail_futex, interval 1, probability 0, space 0, times 0
[   43.801134]  ? ioctl_preallocate+0x1c0/0x1c0
[   43.801148]  SyS_futex+0x215/0x310
[   43.801162]  ? do_futex+0x19e0/0x19e0
[   43.801172]  ? do_syscall_64+0x53/0x640
[   43.801180]  ? do_futex+0x19e0/0x19e0
[   43.801188]  do_syscall_64+0x1e8/0x640
[   43.801196]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   43.801209]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   43.801220] RIP: 0033:0x4469a9
[   43.849302] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
executing program
executing program
[   43.857006] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   43.864273] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   43.871540] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   43.878801] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   43.886077] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   43.893369] CPU: 0 PID: 7299 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   43.901263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.910729] Call Trace:
[   43.913321]  dump_stack+0x142/0x197
[   43.916955]  should_fail.cold+0x10f/0x159
[   43.921113]  get_futex_key+0xb88/0x1400
[   43.925109]  ? futex_lock_pi_atomic+0x220/0x220
[   43.929900]  ? up_read+0x1a/0x40
[   43.933277]  futex_wake+0xd9/0x430
[   43.934541] FAULT_INJECTION: forcing a failure.
[   43.934541] name fail_futex, interval 1, probability 0, space 0, times 0
[   43.936823]  ? tty_ldisc_deref+0x35/0x40
[   43.936836]  ? get_futex_key+0x1400/0x1400
[   43.936848]  ? lock_downgrade+0x740/0x740
[   43.936867]  do_futex+0x290/0x19e0
[   43.949460] FAULT_INJECTION: forcing a failure.
[   43.949460] name fail_futex, interval 1, probability 0, space 0, times 0
[   43.952374]  ? tty_ldisc_deref+0x35/0x40
[   43.952384]  ? tty_ioctl+0x485/0x1320
[   43.952393]  ? tty_vhangup+0x30/0x30
[   43.952406]  ? futex_exit_release+0x70/0x70
[   43.952415]  ? __might_sleep+0x93/0xb0
[   43.952423]  ? __fget+0x210/0x370
[   43.952435]  ? tty_vhangup+0x30/0x30
[   43.959971] FAULT_INJECTION: forcing a failure.
[   43.959971] name failslab, interval 1, probability 0, space 0, times 1
[   43.960877]  ? do_vfs_ioctl+0xef/0x1060
[   43.960885]  ? selinux_file_mprotect+0x5d0/0x5d0
[   43.960891]  ? lock_downgrade+0x740/0x740
[   43.960897]  ? ioctl_preallocate+0x1c0/0x1c0
[   43.960905]  SyS_futex+0x215/0x310
[   43.960912]  ? do_futex+0x19e0/0x19e0
[   43.960919]  ? do_syscall_64+0x53/0x640
[   43.960924]  ? do_futex+0x19e0/0x19e0
[   43.960930]  do_syscall_64+0x1e8/0x640
[   43.960939]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   43.960948]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   43.960953] RIP: 0033:0x4469a9
[   43.960956] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   43.960962] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   43.960965] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   43.960968] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   43.960971] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   43.960974] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   43.961941] CPU: 0 PID: 7293 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   44.115654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.125000] Call Trace:
[   44.127587]  dump_stack+0x142/0x197
[   44.131204]  should_fail.cold+0x10f/0x159
[   44.135355]  get_futex_key+0xb88/0x1400
[   44.139330]  ? futex_lock_pi_atomic+0x220/0x220
[   44.143995]  ? up_read+0x1a/0x40
[   44.147360]  futex_wake+0xd9/0x430
[   44.150922]  ? tty_ldisc_deref+0x35/0x40
[   44.154986]  ? get_futex_key+0x1400/0x1400
[   44.159207]  ? lock_downgrade+0x740/0x740
[   44.163472]  do_futex+0x290/0x19e0
[   44.167130]  ? tty_ldisc_deref+0x35/0x40
[   44.171203]  ? tty_ioctl+0x485/0x1320
[   44.174998]  ? tty_vhangup+0x30/0x30
[   44.178703]  ? futex_exit_release+0x70/0x70
[   44.183012]  ? __might_sleep+0x93/0xb0
[   44.186896]  ? __fget+0x210/0x370
[   44.190350]  ? tty_vhangup+0x30/0x30
[   44.194056]  ? do_vfs_ioctl+0xef/0x1060
[   44.198026]  ? selinux_file_mprotect+0x5d0/0x5d0
[   44.202780]  ? lock_downgrade+0x740/0x740
[   44.206920]  ? ioctl_preallocate+0x1c0/0x1c0
[   44.211335]  SyS_futex+0x215/0x310
[   44.214875]  ? do_futex+0x19e0/0x19e0
[   44.218661]  ? do_syscall_64+0x53/0x640
[   44.222625]  ? do_futex+0x19e0/0x19e0
[   44.226427]  do_syscall_64+0x1e8/0x640
[   44.230321]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   44.235161]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   44.240342] RIP: 0033:0x4469a9
[   44.243514] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   44.251302] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
executing program
executing program
[   44.258558] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   44.265822] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   44.273090] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   44.280440] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   44.287709] CPU: 1 PID: 7303 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   44.295723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.296065] FAULT_INJECTION: forcing a failure.
[   44.296065] name fail_futex, interval 1, probability 0, space 0, times 0
[   44.305075] Call Trace:
[   44.305093]  dump_stack+0x142/0x197
[   44.305105]  should_fail.cold+0x10f/0x159
[   44.305113]  should_failslab+0xdb/0x130
[   44.305124]  __kmalloc+0x71/0x7a0
[   44.305137]  ? pty_write+0x14d/0x1d0
[   44.318656] FAULT_INJECTION: forcing a failure.
[   44.318656] name fail_futex, interval 1, probability 0, space 0, times 0
[   44.319081]  ? __tty_buffer_request_room+0x1a4/0x500
[   44.319088]  __tty_buffer_request_room+0x1a4/0x500
[   44.319098]  tty_insert_flip_string_fixed_flag+0x8a/0x1c0
[   44.364872]  pty_write+0x113/0x1d0
[   44.368398]  ? save_trace+0x290/0x290
[   44.372195]  tty_put_char+0x108/0x130
[   44.375991]  ? dev_match_devt+0x90/0x90
[   44.380140]  ? mutex_trylock+0x1c0/0x1c0
[   44.384192]  do_output_char+0x135/0x7a0
[   44.388159]  __process_echoes+0x316/0x8a0
[   44.392332]  n_tty_receive_buf_common+0x8ed/0x2570
[   44.397265]  ? n_tty_receive_buf2+0x40/0x40
[   44.401577]  n_tty_receive_buf+0x31/0x3b
[   44.405740]  tty_ioctl+0xded/0x1320
[   44.409357]  ? tty_vhangup+0x30/0x30
[   44.413061]  ? __might_sleep+0x93/0xb0
[   44.416943]  ? __fget+0x210/0x370
[   44.420393]  ? tty_vhangup+0x30/0x30
[   44.424106]  do_vfs_ioctl+0x7ae/0x1060
[   44.427984]  ? selinux_file_mprotect+0x5d0/0x5d0
[   44.432734]  ? lock_downgrade+0x740/0x740
[   44.436915]  ? ioctl_preallocate+0x1c0/0x1c0
[   44.441417]  ? __fget+0x237/0x370
[   44.444890]  ? security_file_ioctl+0x7d/0xb0
[   44.449391]  ? security_file_ioctl+0x89/0xb0
[   44.453801]  SyS_ioctl+0x8f/0xc0
[   44.457158]  ? do_vfs_ioctl+0x1060/0x1060
[   44.461383]  do_syscall_64+0x1e8/0x640
[   44.465260]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   44.470114]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   44.475292] RIP: 0033:0x4469a9
[   44.478474] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   44.486181] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   44.493442] RDX: 0000000020000100 RSI: 0000000000005412 RDI: 0000000000000004
[   44.500723] RBP: 00000000006dbc40 R08: 0000000000000001 R09: 0000000000000000
[   44.507980] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c
[   44.515252] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   44.522630] CPU: 0 PID: 7306 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   44.522632] 
[   44.522638] ======================================================
[   44.522641] WARNING: possible circular locking dependency detected
[   44.522643] 4.14.170-syzkaller #0 Not tainted
[   44.522645] ------------------------------------------------------
[   44.522648] syz-executor946/7303 is trying to acquire lock:
[   44.522649]  (console_owner){-...}, at: [<ffffffff814b2661>] vprintk_emit+0x2f1/0x600
[   44.522656] 
[   44.522658] but task is already holding lock:
[   44.522660]  (&(&port->lock)->rlock){-.-.}, at: [<ffffffff834db6a0>] pty_write+0xe0/0x1d0
[   44.522667] 
[   44.522669] which lock already depends on the new lock.
[   44.522670] 
[   44.522671] 
[   44.522674] the existing dependency chain (in reverse order) is:
[   44.522675] 
[   44.522676] -> #2 (&(&port->lock)->rlock){-.-.}:
[   44.522683]        lock_acquire+0x16f/0x430
[   44.522686]        _raw_spin_lock_irqsave+0x95/0xcd
[   44.522688]        tty_port_tty_get+0x22/0x90
[   44.522690]        tty_port_default_wakeup+0x16/0x40
[   44.522692]        tty_port_tty_wakeup+0x57/0x70
[   44.522694]        uart_write_wakeup+0x46/0x70
[   44.522696]        serial8250_tx_chars+0x40d/0xa10
[   44.522699]        serial8250_handle_irq.part.0+0x206/0x250
[   44.522702]        serial8250_default_handle_irq+0xa1/0x120
[   44.522704]        serial8250_interrupt+0xe9/0x1a0
[   44.522706]        __handle_irq_event_percpu+0x125/0x7f0
[   44.522708]        handle_irq_event_percpu+0x65/0x130
[   44.522710]        handle_irq_event+0xa7/0x134
[   44.522712]        handle_edge_irq+0x22b/0x840
[   44.522714]        handle_irq+0x39/0x50
[   44.522716]        do_IRQ+0x99/0x1d0
[   44.522718]        ret_from_intr+0x0/0x1e
[   44.522720]        native_safe_halt+0xe/0x10
[   44.522722]        arch_cpu_idle+0xa/0x10
[   44.522724]        default_idle_call+0x36/0x90
[   44.522726]        do_idle+0x262/0x3d0
[   44.522728]        cpu_startup_entry+0x1b/0x20
[   44.522730]        rest_init+0x1d9/0x1e2
[   44.522732]        start_kernel+0x65f/0x67d
[   44.522734]        x86_64_start_reservations+0x29/0x2b
[   44.522736]        x86_64_start_kernel+0x77/0x7b
[   44.522738]        secondary_startup_64+0xa5/0xb0
[   44.522739] 
[   44.522741] -> #1 (&port_lock_key){-.-.}:
[   44.522748]        lock_acquire+0x16f/0x430
[   44.522750]        _raw_spin_lock_irqsave+0x95/0xcd
[   44.522752]        serial8250_console_write+0x709/0x930
[   44.522754]        univ8250_console_write+0x5f/0x70
[   44.522756]        console_unlock+0x9ba/0xed0
[   44.522758]        vprintk_emit+0x1f9/0x600
[   44.522760]        vprintk_default+0x28/0x30
[   44.522762]        vprintk_func+0x5d/0x159
[   44.522764]        printk+0x9e/0xbc
[   44.522766]        register_console+0x614/0x9e0
[   44.522768]        univ8250_console_init+0x33/0x3f
[   44.522770]        console_init+0x4d/0x5d
[   44.522772]        start_kernel+0x43c/0x67d
[   44.522774]        x86_64_start_reservations+0x29/0x2b
[   44.522776]        x86_64_start_kernel+0x77/0x7b
[   44.522778]        secondary_startup_64+0xa5/0xb0
[   44.522779] 
[   44.522780] -> #0 (console_owner){-...}:
[   44.522855]        __lock_acquire+0x2cb3/0x4620
[   44.522857]        lock_acquire+0x16f/0x430
[   44.522859]        vprintk_emit+0x32e/0x600
[   44.522861]        vprintk_default+0x28/0x30
[   44.522863]        vprintk_func+0x5d/0x159
[   44.522865]        printk+0x9e/0xbc
[   44.522867]        should_fail.cold+0xe4/0x159
[   44.522869]        should_failslab+0xdb/0x130
[   44.522871]        __kmalloc+0x71/0x7a0
[   44.522873]        __tty_buffer_request_room+0x1a4/0x500
[   44.522876]        tty_insert_flip_string_fixed_flag+0x8a/0x1c0
[   44.522878]        pty_write+0x113/0x1d0
[   44.522880]        tty_put_char+0x108/0x130
[   44.522882]        do_output_char+0x135/0x7a0
[   44.522884]        __process_echoes+0x316/0x8a0
[   44.522887]        n_tty_receive_buf_common+0x8ed/0x2570
[   44.522889]        n_tty_receive_buf+0x31/0x3b
[   44.522891]        tty_ioctl+0xded/0x1320
[   44.522893]        do_vfs_ioctl+0x7ae/0x1060
[   44.522895]        SyS_ioctl+0x8f/0xc0
[   44.522897]        do_syscall_64+0x1e8/0x640
[   44.522900]        entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   44.522901] 
[   44.522903] other info that might help us debug this:
[   44.522904] 
[   44.522906] Chain exists of:
[   44.522907]   console_owner --> &port_lock_key --> &(&port->lock)->rlock
[   44.522917] 
[   44.522919]  Possible unsafe locking scenario:
[   44.522920] 
[   44.522922]        CPU0                    CPU1
[   44.522924]        ----                    ----
[   44.522926]   lock(&(&port->lock)->rlock);
[   44.522931]                                lock(&port_lock_key);
[   44.522936]                                lock(&(&port->lock)->rlock);
[   44.522940]   lock(console_owner);
[   44.522944] 
[   44.522946]  *** DEADLOCK ***
[   44.522947] 
[   44.522949] 4 locks held by syz-executor946/7303:
[   44.522950]  #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff866928d3>] ldsem_down_read+0x33/0x40
[   44.522958]  #1:  (&o_tty->termios_rwsem/1){++++}, at: [<ffffffff834ca60f>] n_tty_receive_buf_common+0x8f/0x2570
[   44.522968]  #2:  (&ldata->output_lock){+.+.}, at: [<ffffffff834cae2d>] n_tty_receive_buf_common+0x8ad/0x2570
[   44.522976]  #3:  (&(&port->lock)->rlock){-.-.}, at: [<ffffffff834db6a0>] pty_write+0xe0/0x1d0
[   44.522983] 
[   44.522985] stack backtrace:
[   44.522989] CPU: 1 PID: 7303 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   44.522992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.522994] Call Trace:
[   44.522996]  dump_stack+0x142/0x197
[   44.522999]  print_circular_bug.isra.0.cold+0x1cc/0x28f
[   44.523000]  __lock_acquire+0x2cb3/0x4620
[   44.523003]  ? trace_hardirqs_on+0x10/0x10
[   44.523004]  ? save_trace+0x290/0x290
[   44.523006]  ? vprintk_emit+0x309/0x600
[   44.523008]  lock_acquire+0x16f/0x430
[   44.523010]  ? vprintk_emit+0x2f1/0x600
[   44.523012]  vprintk_emit+0x32e/0x600
[   44.523014]  ? vprintk_emit+0x2f1/0x600
[   44.523016]  vprintk_default+0x28/0x30
[   44.523018]  vprintk_func+0x5d/0x159
[   44.523020]  printk+0x9e/0xbc
[   44.523022]  ? show_regs_print_info+0x63/0x63
[   44.523024]  ? _raw_spin_unlock_irqrestore+0xa4/0xe0
[   44.523026]  ? ___ratelimit+0x55/0x537
[   44.523028]  should_fail.cold+0xe4/0x159
[   44.523030]  should_failslab+0xdb/0x130
[   44.523032]  __kmalloc+0x71/0x7a0
[   44.523034]  ? pty_write+0x14d/0x1d0
[   44.523036]  ? __tty_buffer_request_room+0x1a4/0x500
[   44.523039]  __tty_buffer_request_room+0x1a4/0x500
[   44.523041]  tty_insert_flip_string_fixed_flag+0x8a/0x1c0
[   44.523043]  pty_write+0x113/0x1d0
[   44.523045]  ? save_trace+0x290/0x290
[   44.523047]  tty_put_char+0x108/0x130
[   44.523049]  ? dev_match_devt+0x90/0x90
[   44.523051]  ? mutex_trylock+0x1c0/0x1c0
[   44.523053]  do_output_char+0x135/0x7a0
[   44.523055]  __process_echoes+0x316/0x8a0
[   44.523058]  n_tty_receive_buf_common+0x8ed/0x2570
[   44.523060]  ? n_tty_receive_buf2+0x40/0x40
[   44.523062]  n_tty_receive_buf+0x31/0x3b
[   44.523064]  tty_ioctl+0xded/0x1320
[   44.523066]  ? tty_vhangup+0x30/0x30
[   44.523068]  ? __might_sleep+0x93/0xb0
[   44.523069]  ? __fget+0x210/0x370
[   44.523071]  ? tty_vhangup+0x30/0x30
[   44.523074]  do_vfs_ioctl+0x7ae/0x1060
[   44.523076]  ? selinux_file_mprotect+0x5d0/0x5d0
[   44.523078]  ? lock_downgrade+0x740/0x740
[   44.523080]  ? ioctl_preallocate+0x1c0/0x1c0
[   44.523082]  ? __fget+0x237/0x370
[   44.523084]  ? security_file_ioctl+0x7d/0xb0
[   44.523086]  ? security_file_ioctl+0x89/0xb0
[   44.523088]  SyS_ioctl+0x8f/0xc0
[   44.523091]  ? do_vfs_ioctl+0x1060/0x1060
[   44.523093]  do_syscall_64+0x1e8/0x640
[   44.523095]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   44.523097]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   44.523099] RIP: 0033:0x4469a9
[   44.523101] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   44.523107] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   44.523110] RDX: 0000000020000100 RSI: 0000000000005412 RDI: 0000000000000004
[   44.523113] RBP: 00000000006dbc40 R08: 0000000000000001 R09: 0000000000000000
[   44.523116] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c
[   44.523119] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   45.298627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.307969] Call Trace:
[   45.310545]  dump_stack+0x142/0x197
[   45.314156]  should_fail.cold+0x10f/0x159
[   45.318300]  get_futex_key+0xb88/0x1400
[   45.322268]  ? futex_lock_pi_atomic+0x220/0x220
[   45.326924]  ? up_read+0x1a/0x40
[   45.330279]  futex_wake+0xd9/0x430
[   45.333819]  ? get_futex_key+0x1400/0x1400
[   45.338046]  ? lock_downgrade+0x740/0x740
[   45.342177]  do_futex+0x290/0x19e0
[   45.345697]  ? tty_ldisc_deref+0x35/0x40
[   45.349748]  ? tty_ioctl+0x485/0x1320
[   45.353539]  ? get_pid_task+0xbf/0x140
[   45.357410]  ? tty_vhangup+0x30/0x30
[   45.361112]  ? trace_hardirqs_on+0x10/0x10
[   45.365330]  ? futex_exit_release+0x70/0x70
[   45.369639]  ? __might_sleep+0x93/0xb0
[   45.373515]  ? tty_vhangup+0x30/0x30
[   45.377221]  ? do_vfs_ioctl+0xef/0x1060
[   45.381189]  ? selinux_file_mprotect+0x5d0/0x5d0
[   45.386036]  ? lock_downgrade+0x740/0x740
[   45.390177]  ? ioctl_preallocate+0x1c0/0x1c0
[   45.394577]  SyS_futex+0x215/0x310
[   45.398106]  ? do_futex+0x19e0/0x19e0
[   45.401901]  ? fput+0xd4/0x150
[   45.405089]  ? SyS_ioctl+0x67/0xc0
[   45.408626]  ? do_futex+0x19e0/0x19e0
[   45.412443]  do_syscall_64+0x1e8/0x640
[   45.416330]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.421165]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   45.426344] RIP: 0033:0x4469a9
[   45.429519] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   45.437301] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   45.444556] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   45.451813] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   45.459067] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
executing program
[   45.466327] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   45.473598] CPU: 1 PID: 7296 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   45.481475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.490944] Call Trace:
[   45.493524]  dump_stack+0x142/0x197
[   45.497148]  should_fail.cold+0x10f/0x159
[   45.501279]  get_futex_key+0xb88/0x1400
[   45.505247]  ? futex_lock_pi_atomic+0x220/0x220
[   45.509902]  ? lock_downgrade+0x740/0x740
[   45.514085]  futex_wake+0xd9/0x430
[   45.517624]  ? get_pid_task+0x98/0x140
[   45.521499]  ? get_futex_key+0x1400/0x1400
[   45.525738]  ? __lock_acquire+0x5f7/0x4620
[   45.529961]  ? lock_downgrade+0x740/0x740
[   45.534225]  do_futex+0x290/0x19e0
[   45.537764]  ? trace_hardirqs_on+0x10/0x10
[   45.541995]  ? __fdget_pos+0x30/0xd0
[   45.545723]  ? futex_exit_release+0x70/0x70
[   45.550157]  ? __fget+0x210/0x370
[   45.550942] FAULT_INJECTION: forcing a failure.
[   45.550942] name fail_futex, interval 1, probability 0, space 0, times 0
[   45.553610]  ? find_held_lock+0x35/0x130
[   45.553619]  ? __fget+0x210/0x370
[   45.553633]  ? lock_downgrade+0x740/0x740
[   45.577119]  SyS_futex+0x215/0x310
[   45.580645]  ? do_futex+0x19e0/0x19e0
[   45.584427]  ? do_syscall_64+0x53/0x640
[   45.588391]  ? do_futex+0x19e0/0x19e0
[   45.592189]  do_syscall_64+0x1e8/0x640
[   45.596056]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.600884]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   45.606063] RIP: 0033:0x4469a9
[   45.609241] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   45.616940] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   45.624219] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   45.631574] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   45.638833] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   45.646172] R13: 00007f9662f44d10 R14: 0000000000000006 R15: 0000000000000000
[   45.653435] CPU: 0 PID: 7307 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   45.661310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.674737] Call Trace:
[   45.677323]  dump_stack+0x142/0x197
[   45.680944]  should_fail.cold+0x10f/0x159
[   45.685115]  get_futex_key+0xb88/0x1400
[   45.689084]  ? futex_lock_pi_atomic+0x220/0x220
[   45.693742]  ? up_read+0x1a/0x40
[   45.697107]  futex_wake+0xd9/0x430
[   45.700636]  ? get_futex_key+0x1400/0x1400
[   45.704862]  ? lock_downgrade+0x740/0x740
[   45.708996]  do_futex+0x290/0x19e0
[   45.712515]  ? tty_ldisc_deref+0x35/0x40
[   45.716571]  ? tty_ioctl+0x485/0x1320
[   45.720367]  ? get_pid_task+0xbf/0x140
[   45.724239]  ? tty_vhangup+0x30/0x30
[   45.727946]  ? trace_hardirqs_on+0x10/0x10
[   45.732184]  ? futex_exit_release+0x70/0x70
[   45.736496]  ? __might_sleep+0x93/0xb0
[   45.740378]  ? tty_vhangup+0x30/0x30
[   45.744085]  ? do_vfs_ioctl+0xef/0x1060
[   45.748170]  ? selinux_file_mprotect+0x5d0/0x5d0
[   45.752918]  ? lock_downgrade+0x740/0x740
[   45.757088]  ? ioctl_preallocate+0x1c0/0x1c0
[   45.761495]  SyS_futex+0x215/0x310
[   45.765035]  ? do_futex+0x19e0/0x19e0
executing program
[   45.768827]  ? fput+0xd4/0x150
[   45.772009]  ? SyS_ioctl+0x67/0xc0
[   45.775548]  ? do_futex+0x19e0/0x19e0
[   45.779355]  do_syscall_64+0x1e8/0x640
[   45.783238]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.788105]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   45.793290] RIP: 0033:0x4469a9
[   45.796474] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   45.799052] FAULT_INJECTION: forcing a failure.
[   45.799052] name fail_futex, interval 1, probability 0, space 0, times 0
[   45.804184] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   45.804188] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   45.804191] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   45.804194] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   45.804198] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   45.805081] CPU: 0 PID: 7310 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   45.860363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.869846] Call Trace:
[   45.872426]  dump_stack+0x142/0x197
[   45.876056]  should_fail.cold+0x10f/0x159
[   45.880194]  get_futex_key+0xb88/0x1400
[   45.884161]  ? futex_lock_pi_atomic+0x220/0x220
[   45.888810]  ? up_read+0x1a/0x40
[   45.892163]  futex_wake+0xd9/0x430
[   45.895688]  ? get_futex_key+0x1400/0x1400
[   45.899914]  ? lock_downgrade+0x740/0x740
[   45.904055]  do_futex+0x290/0x19e0
[   45.907579]  ? tty_ldisc_deref+0x35/0x40
[   45.911629]  ? tty_ioctl+0x485/0x1320
[   45.915410]  ? get_pid_task+0xbf/0x140
executing program
[   45.919298]  ? tty_vhangup+0x30/0x30
[   45.923007]  ? trace_hardirqs_on+0x10/0x10
[   45.927233]  ? futex_exit_release+0x70/0x70
[   45.931539]  ? __might_sleep+0x93/0xb0
[   45.935419]  ? tty_vhangup+0x30/0x30
[   45.939138]  ? do_vfs_ioctl+0xef/0x1060
[   45.943103]  ? selinux_file_mprotect+0x5d0/0x5d0
[   45.947844]  ? lock_downgrade+0x740/0x740
[   45.950724] FAULT_INJECTION: forcing a failure.
[   45.950724] name fail_futex, interval 1, probability 0, space 0, times 0
[   45.951988]  ? ioctl_preallocate+0x1c0/0x1c0
[   45.951998]  SyS_futex+0x215/0x310
[   45.952009]  ? do_futex+0x19e0/0x19e0
[   45.975197]  ? fput+0xd4/0x150
[   45.978373]  ? SyS_ioctl+0x67/0xc0
[   45.981902]  ? do_futex+0x19e0/0x19e0
[   45.985702]  do_syscall_64+0x1e8/0x640
[   45.989579]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.994408]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   45.999595] RIP: 0033:0x4469a9
[   46.002777] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   46.010567] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
executing program
executing program
[   46.017826] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   46.025087] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   46.032341] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   46.039596] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   46.046868] CPU: 1 PID: 7312 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   46.054753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.064100] Call Trace:
[   46.066691]  dump_stack+0x142/0x197
[   46.070327]  should_fail.cold+0x10f/0x159
[   46.070378] FAULT_INJECTION: forcing a failure.
[   46.070378] name fail_futex, interval 1, probability 0, space 0, times 0
[   46.074470]  get_futex_key+0xb88/0x1400
[   46.074479]  ? futex_lock_pi_atomic+0x220/0x220
[   46.074491]  ? up_read+0x1a/0x40
[   46.087612] FAULT_INJECTION: forcing a failure.
[   46.087612] name fail_futex, interval 1, probability 0, space 0, times 0
[   46.089814]  futex_wake+0xd9/0x430
[   46.089824]  ? get_futex_key+0x1400/0x1400
[   46.116911]  ? lock_downgrade+0x740/0x740
[   46.121058]  do_futex+0x290/0x19e0
[   46.124599]  ? tty_ldisc_deref+0x35/0x40
[   46.128644]  ? tty_ioctl+0x485/0x1320
[   46.132434]  ? get_pid_task+0xbf/0x140
[   46.136313]  ? tty_vhangup+0x30/0x30
[   46.140011]  ? trace_hardirqs_on+0x10/0x10
[   46.144244]  ? futex_exit_release+0x70/0x70
[   46.148656]  ? __might_sleep+0x93/0xb0
[   46.152529]  ? tty_vhangup+0x30/0x30
[   46.156227]  ? do_vfs_ioctl+0xef/0x1060
[   46.160196]  ? selinux_file_mprotect+0x5d0/0x5d0
[   46.164943]  ? lock_downgrade+0x740/0x740
[   46.169084]  ? ioctl_preallocate+0x1c0/0x1c0
[   46.173480]  SyS_futex+0x215/0x310
[   46.177012]  ? do_futex+0x19e0/0x19e0
[   46.180798]  ? fput+0xd4/0x150
[   46.183981]  ? SyS_ioctl+0x67/0xc0
[   46.187502]  ? do_futex+0x19e0/0x19e0
[   46.191287]  do_syscall_64+0x1e8/0x640
[   46.195169]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   46.200015]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   46.205196] RIP: 0033:0x4469a9
[   46.208369] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   46.216187] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   46.223445] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   46.230700] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   46.237958] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   46.245216] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   46.252493] CPU: 0 PID: 7318 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   46.260371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.269712] Call Trace:
[   46.272290]  dump_stack+0x142/0x197
[   46.275913]  should_fail.cold+0x10f/0x159
[   46.280066]  get_futex_key+0xb88/0x1400
[   46.284043]  ? futex_lock_pi_atomic+0x220/0x220
[   46.288709]  ? up_read+0x1a/0x40
[   46.292077]  futex_wake+0xd9/0x430
[   46.295604]  ? get_futex_key+0x1400/0x1400
[   46.299823]  ? lock_downgrade+0x740/0x740
[   46.303969]  do_futex+0x290/0x19e0
[   46.307494]  ? tty_ldisc_deref+0x35/0x40
[   46.311548]  ? tty_ioctl+0x485/0x1320
[   46.315342]  ? get_pid_task+0xbf/0x140
[   46.319221]  ? tty_vhangup+0x30/0x30
[   46.322943]  ? trace_hardirqs_on+0x10/0x10
[   46.327266]  ? futex_exit_release+0x70/0x70
[   46.331684]  ? __might_sleep+0x93/0xb0
[   46.335571]  ? tty_vhangup+0x30/0x30
[   46.339273]  ? do_vfs_ioctl+0xef/0x1060
[   46.343238]  ? selinux_file_mprotect+0x5d0/0x5d0
[   46.347979]  ? lock_downgrade+0x740/0x740
[   46.352110]  ? ioctl_preallocate+0x1c0/0x1c0
[   46.356514]  SyS_futex+0x215/0x310
[   46.360045]  ? do_futex+0x19e0/0x19e0
[   46.363838]  ? fput+0xd4/0x150
[   46.367034]  ? SyS_ioctl+0x67/0xc0
[   46.370573]  ? do_futex+0x19e0/0x19e0
[   46.374365]  do_syscall_64+0x1e8/0x640
[   46.378243]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   46.383074]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   46.388367] RIP: 0033:0x4469a9
[   46.391544] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   46.399235] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   46.406491] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   46.413749] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   46.421002] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   46.429299] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   46.436568] CPU: 1 PID: 7314 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   46.444444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.453786] Call Trace:
[   46.456378]  dump_stack+0x142/0x197
[   46.459990]  should_fail.cold+0x10f/0x159
[   46.464134]  get_futex_key+0xb88/0x1400
[   46.468103]  ? futex_lock_pi_atomic+0x220/0x220
[   46.472769]  ? up_read+0x1a/0x40
[   46.476121]  futex_wake+0xd9/0x430
[   46.479648]  ? get_futex_key+0x1400/0x1400
[   46.483897]  ? lock_downgrade+0x740/0x740
[   46.488091]  do_futex+0x290/0x19e0
[   46.491623]  ? tty_ldisc_deref+0x35/0x40
[   46.495777]  ? tty_ioctl+0x485/0x1320
[   46.499567]  ? get_pid_task+0xbf/0x140
[   46.503485]  ? tty_vhangup+0x30/0x30
[   46.507190]  ? trace_hardirqs_on+0x10/0x10
[   46.511425]  ? futex_exit_release+0x70/0x70
[   46.515727]  ? __might_sleep+0x93/0xb0
[   46.519604]  ? tty_vhangup+0x30/0x30
[   46.523303]  ? do_vfs_ioctl+0xef/0x1060
[   46.527267]  ? selinux_file_mprotect+0x5d0/0x5d0
[   46.532013]  ? lock_downgrade+0x740/0x740
[   46.536151]  ? ioctl_preallocate+0x1c0/0x1c0
[   46.540551]  SyS_futex+0x215/0x310
[   46.544075]  ? do_futex+0x19e0/0x19e0
[   46.547866]  ? fput+0xd4/0x150
[   46.551046]  ? SyS_ioctl+0x67/0xc0
[   46.554580]  ? do_futex+0x19e0/0x19e0
[   46.558366]  do_syscall_64+0x1e8/0x640
[   46.562244]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   46.567076]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   46.572247] RIP: 0033:0x4469a9
[   46.575415] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   46.583110] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   46.590366] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   46.597622] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   46.607737] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   46.614993] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   46.622261] CPU: 0 PID: 7317 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   46.630148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.639489] Call Trace:
[   46.642067]  dump_stack+0x142/0x197
[   46.645678]  should_fail.cold+0x10f/0x159
[   46.649817]  get_futex_key+0xb88/0x1400
[   46.653784]  ? futex_lock_pi_atomic+0x220/0x220
[   46.658435]  ? up_read+0x1a/0x40
[   46.661792]  futex_wake+0xd9/0x430
[   46.665321]  ? get_futex_key+0x1400/0x1400
[   46.669545]  ? lock_downgrade+0x740/0x740
[   46.673680]  do_futex+0x290/0x19e0
[   46.677212]  ? tty_ldisc_deref+0x35/0x40
[   46.681267]  ? tty_ioctl+0x485/0x1320
[   46.685060]  ? get_pid_task+0xbf/0x140
[   46.688930]  ? tty_vhangup+0x30/0x30
[   46.692624]  ? trace_hardirqs_on+0x10/0x10
[   46.696860]  ? futex_exit_release+0x70/0x70
[   46.701164]  ? __might_sleep+0x93/0xb0
[   46.705047]  ? tty_vhangup+0x30/0x30
[   46.708747]  ? do_vfs_ioctl+0xef/0x1060
[   46.712709]  ? selinux_file_mprotect+0x5d0/0x5d0
[   46.717454]  ? lock_downgrade+0x740/0x740
[   46.721768]  ? ioctl_preallocate+0x1c0/0x1c0
[   46.726167]  SyS_futex+0x215/0x310
[   46.729693]  ? do_futex+0x19e0/0x19e0
[   46.733482]  ? fput+0xd4/0x150
[   46.736659]  ? SyS_ioctl+0x67/0xc0
[   46.740186]  ? do_futex+0x19e0/0x19e0
[   46.743984]  do_syscall_64+0x1e8/0x640
[   46.747886]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   46.752721]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   46.757920] RIP: 0033:0x4469a9
[   46.761097] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   46.768791] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
executing program
executing program
executing program
[   46.776047] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   46.783301] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   46.790559] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   46.797817] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   46.805918] CPU: 1 PID: 7302 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   46.812578] FAULT_INJECTION: forcing a failure.
[   46.812578] name fail_futex, interval 1, probability 0, space 0, times 0
[   46.813804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.813807] Call Trace:
[   46.813821]  dump_stack+0x142/0x197
[   46.813841]  should_fail.cold+0x10f/0x159
[   46.844859]  get_futex_key+0xb88/0x1400
[   46.848831]  ? futex_lock_pi_atomic+0x220/0x220
[   46.853490]  ? up_read+0x1a/0x40
[   46.856862]  futex_wake+0xd9/0x430
[   46.860411]  ? tty_ldisc_deref+0x35/0x40
[   46.862836] FAULT_INJECTION: forcing a failure.
[   46.862836] name fail_futex, interval 1, probability 0, space 0, times 0
[   46.864460]  ? get_futex_key+0x1400/0x1400
[   46.864469]  ? lock_downgrade+0x740/0x740
[   46.864481]  do_futex+0x290/0x19e0
[   46.887725]  ? tty_ldisc_deref+0x35/0x40
[   46.891773]  ? tty_ioctl+0x485/0x1320
[   46.895556]  ? tty_vhangup+0x30/0x30
[   46.899265]  ? futex_exit_release+0x70/0x70
[   46.903571]  ? __might_sleep+0x93/0xb0
[   46.907445]  ? __fget+0x210/0x370
[   46.910893]  ? tty_vhangup+0x30/0x30
[   46.914595]  ? do_vfs_ioctl+0xef/0x1060
[   46.918564]  ? selinux_file_mprotect+0x5d0/0x5d0
[   46.923303]  ? lock_downgrade+0x740/0x740
[   46.927543]  ? ioctl_preallocate+0x1c0/0x1c0
[   46.931937]  SyS_futex+0x215/0x310
[   46.935479]  ? do_futex+0x19e0/0x19e0
[   46.939271]  ? do_syscall_64+0x53/0x640
[   46.943240]  ? do_futex+0x19e0/0x19e0
[   46.947033]  do_syscall_64+0x1e8/0x640
[   46.950906]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   46.955750]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   46.960932] RIP: 0033:0x4469a9
[   46.964104] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
executing program
executing program
[   46.971797] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   46.979063] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   46.986321] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   46.993586] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   47.000847] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   47.008117] CPU: 0 PID: 7326 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   47.016002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.025378] Call Trace:
[   47.027978]  dump_stack+0x142/0x197
[   47.031443] FAULT_INJECTION: forcing a failure.
[   47.031443] name fail_futex, interval 1, probability 0, space 0, times 0
[   47.031608]  should_fail.cold+0x10f/0x159
[   47.043846] FAULT_INJECTION: forcing a failure.
[   47.043846] name fail_futex, interval 1, probability 0, space 0, times 0
[   47.047115]  get_futex_key+0xb88/0x1400
[   47.047127]  ? futex_lock_pi_atomic+0x220/0x220
[   47.059399] FAULT_INJECTION: forcing a failure.
[   47.059399] name fail_futex, interval 1, probability 0, space 0, times 0
[   47.062447]  ? up_read+0x1a/0x40
[   47.062497]  futex_wake+0xd9/0x430
[   47.062511]  ? get_futex_key+0x1400/0x1400
[   47.062517]  ? lock_downgrade+0x740/0x740
[   47.062523]  do_futex+0x290/0x19e0
[   47.062527]  ? tty_ldisc_deref+0x35/0x40
[   47.062533]  ? tty_ioctl+0x485/0x1320
[   47.062540]  ? get_pid_task+0xbf/0x140
[   47.062547]  ? tty_vhangup+0x30/0x30
[   47.062552]  ? trace_hardirqs_on+0x10/0x10
[   47.062560]  ? futex_exit_release+0x70/0x70
[   47.062566]  ? __might_sleep+0x93/0xb0
[   47.062574]  ? tty_vhangup+0x30/0x30
[   47.062582]  ? do_vfs_ioctl+0xef/0x1060
[   47.062590]  ? selinux_file_mprotect+0x5d0/0x5d0
[   47.062594]  ? lock_downgrade+0x740/0x740
[   47.062604]  ? ioctl_preallocate+0x1c0/0x1c0
[   47.146096]  SyS_futex+0x215/0x310
[   47.149628]  ? do_futex+0x19e0/0x19e0
[   47.153423]  ? fput+0xd4/0x150
[   47.156603]  ? SyS_ioctl+0x67/0xc0
[   47.160140]  ? do_futex+0x19e0/0x19e0
[   47.163938]  do_syscall_64+0x1e8/0x640
[   47.167814]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   47.172644]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   47.177813] RIP: 0033:0x4469a9
[   47.181002] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   47.188702] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   47.196832] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   47.204099] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   47.211377] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   47.218632] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   47.225901] CPU: 1 PID: 7321 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   47.233901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.243242] Call Trace:
[   47.245824]  dump_stack+0x142/0x197
[   47.249447]  should_fail.cold+0x10f/0x159
[   47.253605]  get_futex_key+0xb88/0x1400
[   47.257596]  ? futex_lock_pi_atomic+0x220/0x220
[   47.262267]  ? lock_downgrade+0x740/0x740
[   47.266415]  futex_wake+0xd9/0x430
[   47.269959]  ? _kstrtoul+0x120/0x120
[   47.273669]  ? _copy_from_user+0x99/0x110
[   47.273802] FAULT_INJECTION: forcing a failure.
[   47.273802] name fail_futex, interval 1, probability 0, space 0, times 0
[   47.277812]  ? get_futex_key+0x1400/0x1400
[   47.277824]  ? lock_downgrade+0x740/0x740
[   47.277836]  do_futex+0x290/0x19e0
[   47.301068]  ? get_pid_task+0xbf/0x140
[   47.304961]  ? proc_fail_nth_write+0x7d/0x180
[   47.309616]  ? trace_hardirqs_on+0x10/0x10
[   47.313847]  ? futex_exit_release+0x70/0x70
[   47.318169]  ? lock_downgrade+0x740/0x740
[   47.322312]  ? lock_downgrade+0x740/0x740
[   47.326445]  SyS_futex+0x215/0x310
[   47.330082]  ? do_futex+0x19e0/0x19e0
[   47.333873]  ? __fdget+0x1b/0x20
[   47.337223]  ? SyS_ioctl+0x67/0xc0
[   47.340752]  ? do_futex+0x19e0/0x19e0
[   47.344539]  do_syscall_64+0x1e8/0x640
[   47.348422]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   47.353264]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   47.358442] RIP: 0033:0x4469a9
[   47.361641] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   47.369341] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
executing program
[   47.376648] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   47.383910] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   47.391168] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   47.398429] R13: 00007f9662f44d10 R14: 0000000000000006 R15: 0000000000000000
[   47.405700] CPU: 0 PID: 7332 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   47.413579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.422921] Call Trace:
[   47.425497]  dump_stack+0x142/0x197
[   47.429228]  should_fail.cold+0x10f/0x159
[   47.433368]  get_futex_key+0xb88/0x1400
[   47.437329]  ? futex_lock_pi_atomic+0x220/0x220
[   47.442009]  ? up_read+0x1a/0x40
[   47.445361]  futex_wake+0xd9/0x430
[   47.448895]  ? get_futex_key+0x1400/0x1400
[   47.453122]  ? lock_downgrade+0x740/0x740
[   47.457275]  do_futex+0x290/0x19e0
[   47.460813]  ? tty_ldisc_deref+0x35/0x40
[   47.464876]  ? tty_ioctl+0x485/0x1320
[   47.468674]  ? get_pid_task+0xbf/0x140
[   47.472602]  ? tty_vhangup+0x30/0x30
[   47.476430]  ? trace_hardirqs_on+0x10/0x10
[   47.480658]  ? futex_exit_release+0x70/0x70
[   47.484966]  ? __might_sleep+0x93/0xb0
[   47.488848]  ? tty_vhangup+0x30/0x30
[   47.492547]  ? do_vfs_ioctl+0xef/0x1060
[   47.496513]  ? selinux_file_mprotect+0x5d0/0x5d0
[   47.501261]  ? lock_downgrade+0x740/0x740
[   47.505397]  ? ioctl_preallocate+0x1c0/0x1c0
[   47.509800]  SyS_futex+0x215/0x310
[   47.513369]  ? do_futex+0x19e0/0x19e0
[   47.517155]  ? fput+0xd4/0x150
[   47.520333]  ? SyS_ioctl+0x67/0xc0
[   47.523870]  ? do_futex+0x19e0/0x19e0
[   47.527655]  do_syscall_64+0x1e8/0x640
[   47.531528]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   47.536478]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   47.541659] RIP: 0033:0x4469a9
[   47.544851] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   47.552671] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   47.559923] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   47.567183] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   47.574469] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   47.581731] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   47.589017] CPU: 1 PID: 7329 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   47.596896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.606239] Call Trace:
[   47.608842]  dump_stack+0x142/0x197
[   47.612468]  should_fail.cold+0x10f/0x159
[   47.616600]  get_futex_key+0xb88/0x1400
[   47.620571]  ? futex_lock_pi_atomic+0x220/0x220
[   47.625268]  ? up_read+0x1a/0x40
[   47.628622]  futex_wake+0xd9/0x430
[   47.632157]  ? get_futex_key+0x1400/0x1400
[   47.636384]  ? lock_downgrade+0x740/0x740
[   47.640517]  do_futex+0x290/0x19e0
[   47.644044]  ? tty_ldisc_deref+0x35/0x40
[   47.648088]  ? tty_ioctl+0x485/0x1320
[   47.651878]  ? get_pid_task+0xbf/0x140
[   47.655749]  ? tty_vhangup+0x30/0x30
[   47.659466]  ? trace_hardirqs_on+0x10/0x10
[   47.663688]  ? futex_exit_release+0x70/0x70
[   47.667996]  ? __might_sleep+0x93/0xb0
[   47.671981]  ? tty_vhangup+0x30/0x30
[   47.675681]  ? do_vfs_ioctl+0xef/0x1060
[   47.679648]  ? selinux_file_mprotect+0x5d0/0x5d0
[   47.684386]  ? lock_downgrade+0x740/0x740
[   47.688520]  ? ioctl_preallocate+0x1c0/0x1c0
[   47.692921]  SyS_futex+0x215/0x310
[   47.696462]  ? do_futex+0x19e0/0x19e0
[   47.700268]  ? fput+0xd4/0x150
[   47.703475]  ? SyS_ioctl+0x67/0xc0
[   47.707004]  ? do_futex+0x19e0/0x19e0
[   47.710790]  do_syscall_64+0x1e8/0x640
[   47.714660]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   47.719498]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   47.724674] RIP: 0033:0x4469a9
executing program
[   47.727864] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   47.735561] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   47.742828] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   47.750095] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   47.753248] FAULT_INJECTION: forcing a failure.
[   47.753248] name fail_futex, interval 1, probability 0, space 0, times 0
[   47.757359] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   47.757363] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   47.758806] CPU: 1 PID: 7330 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   47.791305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.800646] Call Trace:
[   47.803228]  dump_stack+0x142/0x197
[   47.806853]  should_fail.cold+0x10f/0x159
[   47.810990]  get_futex_key+0xb88/0x1400
[   47.814949]  ? futex_lock_pi_atomic+0x220/0x220
[   47.819720]  ? up_read+0x1a/0x40
[   47.823084]  futex_wake+0xd9/0x430
[   47.826609]  ? get_futex_key+0x1400/0x1400
[   47.830828]  ? lock_downgrade+0x740/0x740
[   47.834970]  do_futex+0x290/0x19e0
[   47.838492]  ? tty_ldisc_deref+0x35/0x40
[   47.842646]  ? tty_ioctl+0x485/0x1320
[   47.846441]  ? get_pid_task+0xbf/0x140
[   47.850323]  ? tty_vhangup+0x30/0x30
[   47.854024]  ? trace_hardirqs_on+0x10/0x10
[   47.858257]  ? futex_exit_release+0x70/0x70
[   47.862579]  ? __might_sleep+0x93/0xb0
[   47.866470]  ? tty_vhangup+0x30/0x30
[   47.870183]  ? do_vfs_ioctl+0xef/0x1060
[   47.874156]  ? selinux_file_mprotect+0x5d0/0x5d0
[   47.878902]  ? lock_downgrade+0x740/0x740
[   47.883062]  ? ioctl_preallocate+0x1c0/0x1c0
[   47.886364] FAULT_INJECTION: forcing a failure.
[   47.886364] name fail_futex, interval 1, probability 0, space 0, times 0
[   47.887475]  SyS_futex+0x215/0x310
[   47.887489]  ? do_futex+0x19e0/0x19e0
[   47.906140]  ? fput+0xd4/0x150
[   47.909324]  ? SyS_ioctl+0x67/0xc0
[   47.912867]  ? do_futex+0x19e0/0x19e0
[   47.916663]  do_syscall_64+0x1e8/0x640
[   47.920536]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   47.925380]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
executing program
executing program
[   47.930557] RIP: 0033:0x4469a9
[   47.933728] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   47.941426] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   47.948678] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   47.955937] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   47.963190] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   47.970451] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
executing program
[   47.977720] CPU: 0 PID: 7325 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   47.985604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.994955] Call Trace:
[   47.997546]  dump_stack+0x142/0x197
[   47.998134] FAULT_INJECTION: forcing a failure.
[   47.998134] name fail_futex, interval 1, probability 0, space 0, times 0
[   48.001178]  should_fail.cold+0x10f/0x159
[   48.001190]  get_futex_key+0xb88/0x1400
[   48.001204]  ? futex_lock_pi_atomic+0x220/0x220
[   48.001212]  ? up_read+0x1a/0x40
executing program
[   48.001219]  futex_wake+0xd9/0x430
[   48.001233]  ? get_futex_key+0x1400/0x1400
[   48.036490]  ? lock_downgrade+0x740/0x740
[   48.040649]  do_futex+0x290/0x19e0
[   48.044189]  ? tty_ldisc_deref+0x35/0x40
[   48.048341]  ? tty_ioctl+0x485/0x1320
[   48.052143]  ? get_pid_task+0xbf/0x140
[   48.054871] FAULT_INJECTION: forcing a failure.
[   48.054871] name fail_futex, interval 1, probability 0, space 0, times 0
[   48.056046]  ? tty_vhangup+0x30/0x30
[   48.056056]  ? trace_hardirqs_on+0x10/0x10
[   48.056070]  ? futex_exit_release+0x70/0x70
[   48.079865]  ? __might_sleep+0x93/0xb0
[   48.083749]  ? tty_vhangup+0x30/0x30
[   48.087457]  ? do_vfs_ioctl+0xef/0x1060
[   48.091428]  ? selinux_file_mprotect+0x5d0/0x5d0
[   48.093245] FAULT_INJECTION: forcing a failure.
[   48.093245] name fail_futex, interval 1, probability 0, space 0, times 0
[   48.096181]  ? lock_downgrade+0x740/0x740
[   48.096191]  ? ioctl_preallocate+0x1c0/0x1c0
[   48.096202]  SyS_futex+0x215/0x310
[   48.096217]  ? do_futex+0x19e0/0x19e0
[   48.123388]  ? fput+0xd4/0x150
[   48.126564]  ? SyS_ioctl+0x67/0xc0
[   48.130095]  ? do_futex+0x19e0/0x19e0
[   48.133887]  do_syscall_64+0x1e8/0x640
[   48.137767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   48.142604]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   48.147906] RIP: 0033:0x4469a9
[   48.151080] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   48.158874] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   48.166145] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   48.173406] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   48.180660] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   48.187926] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   48.195196] CPU: 1 PID: 7340 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   48.203075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.212424] Call Trace:
[   48.215004]  dump_stack+0x142/0x197
[   48.218617]  should_fail.cold+0x10f/0x159
[   48.223460]  get_futex_key+0xb88/0x1400
[   48.227432]  ? futex_lock_pi_atomic+0x220/0x220
[   48.232097]  ? up_read+0x1a/0x40
[   48.235451]  futex_wake+0xd9/0x430
[   48.238987]  ? get_futex_key+0x1400/0x1400
[   48.243215]  ? lock_downgrade+0x740/0x740
[   48.247348]  do_futex+0x290/0x19e0
[   48.250886]  ? tty_ldisc_deref+0x35/0x40
[   48.254945]  ? tty_ioctl+0x485/0x1320
[   48.258736]  ? get_pid_task+0xbf/0x140
[   48.262616]  ? tty_vhangup+0x30/0x30
[   48.266418]  ? trace_hardirqs_on+0x10/0x10
[   48.270653]  ? futex_exit_release+0x70/0x70
[   48.274964]  ? __might_sleep+0x93/0xb0
[   48.278853]  ? tty_vhangup+0x30/0x30
[   48.282560]  ? do_vfs_ioctl+0xef/0x1060
[   48.286523]  ? selinux_file_mprotect+0x5d0/0x5d0
[   48.291279]  ? lock_downgrade+0x740/0x740
[   48.295430]  ? ioctl_preallocate+0x1c0/0x1c0
[   48.299826]  SyS_futex+0x215/0x310
[   48.303472]  ? do_futex+0x19e0/0x19e0
[   48.307270]  ? fput+0xd4/0x150
[   48.310460]  ? SyS_ioctl+0x67/0xc0
[   48.313992]  ? do_futex+0x19e0/0x19e0
[   48.317789]  do_syscall_64+0x1e8/0x640
[   48.321669]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   48.326512]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   48.331693] RIP: 0033:0x4469a9
[   48.334873] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   48.342570] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   48.349837] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   48.357101] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   48.364364] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   48.371631] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   48.379051] CPU: 0 PID: 7336 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   48.387056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.396547] Call Trace:
[   48.399128]  dump_stack+0x142/0x197
[   48.402745]  should_fail.cold+0x10f/0x159
[   48.406894]  get_futex_key+0xb88/0x1400
[   48.410863]  ? futex_lock_pi_atomic+0x220/0x220
[   48.415533]  ? up_read+0x1a/0x40
[   48.419017]  futex_wake+0xd9/0x430
[   48.422560]  ? get_futex_key+0x1400/0x1400
[   48.426789]  ? lock_downgrade+0x740/0x740
[   48.430928]  do_futex+0x290/0x19e0
[   48.434467]  ? tty_ldisc_deref+0x35/0x40
[   48.438521]  ? tty_ioctl+0x485/0x1320
[   48.442322]  ? get_pid_task+0xbf/0x140
[   48.446206]  ? tty_vhangup+0x30/0x30
[   48.449918]  ? trace_hardirqs_on+0x10/0x10
[   48.454152]  ? futex_exit_release+0x70/0x70
[   48.458469]  ? __might_sleep+0x93/0xb0
[   48.462375]  ? tty_vhangup+0x30/0x30
[   48.466082]  ? do_vfs_ioctl+0xef/0x1060
[   48.470047]  ? selinux_file_mprotect+0x5d0/0x5d0
[   48.474793]  ? lock_downgrade+0x740/0x740
[   48.478939]  ? ioctl_preallocate+0x1c0/0x1c0
[   48.483389]  SyS_futex+0x215/0x310
[   48.486926]  ? do_futex+0x19e0/0x19e0
[   48.490851]  ? fput+0xd4/0x150
[   48.494032]  ? SyS_ioctl+0x67/0xc0
[   48.497561]  ? do_futex+0x19e0/0x19e0
[   48.501365]  do_syscall_64+0x1e8/0x640
[   48.505371]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   48.510365]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   48.515660] RIP: 0033:0x4469a9
[   48.518839] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   48.526548] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   48.533812] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   48.541076] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   48.548339] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   48.555602] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   48.563000] CPU: 1 PID: 7341 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   48.570889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.580390] Call Trace:
[   48.582971]  dump_stack+0x142/0x197
[   48.586590]  should_fail.cold+0x10f/0x159
[   48.590772]  get_futex_key+0xb88/0x1400
[   48.594754]  ? futex_lock_pi_atomic+0x220/0x220
[   48.599507]  ? up_read+0x1a/0x40
[   48.602871]  futex_wake+0xd9/0x430
[   48.606402]  ? get_futex_key+0x1400/0x1400
[   48.610630]  ? lock_downgrade+0x740/0x740
[   48.614776]  do_futex+0x290/0x19e0
[   48.618312]  ? tty_ldisc_deref+0x35/0x40
[   48.622363]  ? tty_ioctl+0x485/0x1320
[   48.626303]  ? get_pid_task+0xbf/0x140
[   48.630210]  ? tty_vhangup+0x30/0x30
[   48.633913]  ? trace_hardirqs_on+0x10/0x10
[   48.638154]  ? futex_exit_release+0x70/0x70
[   48.642580]  ? __might_sleep+0x93/0xb0
[   48.646596]  ? tty_vhangup+0x30/0x30
[   48.650308]  ? do_vfs_ioctl+0xef/0x1060
[   48.654272]  ? selinux_file_mprotect+0x5d0/0x5d0
[   48.659145]  ? lock_downgrade+0x740/0x740
[   48.663296]  ? ioctl_preallocate+0x1c0/0x1c0
[   48.667698]  SyS_futex+0x215/0x310
[   48.671230]  ? do_futex+0x19e0/0x19e0
[   48.675040]  ? fput+0xd4/0x150
[   48.678370]  ? SyS_ioctl+0x67/0xc0
executing program
[   48.681910]  ? do_futex+0x19e0/0x19e0
[   48.685704]  do_syscall_64+0x1e8/0x640
[   48.689588]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   48.694427]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   48.699612] RIP: 0033:0x4469a9
[   48.703046] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   48.710836] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   48.714196] FAULT_INJECTION: forcing a failure.
[   48.714196] name fail_futex, interval 1, probability 0, space 0, times 0
[   48.718129] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   48.718133] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   48.718136] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   48.718140] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   48.720619] CPU: 1 PID: 7343 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   48.767120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.776628] Call Trace:
[   48.779222]  dump_stack+0x142/0x197
executing program
[   48.782872]  should_fail.cold+0x10f/0x159
[   48.787131]  get_futex_key+0xb88/0x1400
[   48.791099]  ? futex_lock_pi_atomic+0x220/0x220
[   48.795841]  ? up_read+0x1a/0x40
[   48.799210]  futex_wake+0xd9/0x430
[   48.802775]  ? get_futex_key+0x1400/0x1400
[   48.807019]  ? lock_downgrade+0x740/0x740
[   48.811222]  do_futex+0x290/0x19e0
[   48.814763]  ? tty_ldisc_deref+0x35/0x40
[   48.818825]  ? tty_ioctl+0x485/0x1320
[   48.822781]  ? get_pid_task+0xbf/0x140
[   48.826675]  ? tty_vhangup+0x30/0x30
[   48.828539] FAULT_INJECTION: forcing a failure.
[   48.828539] name fail_futex, interval 1, probability 0, space 0, times 0
[   48.830580]  ? trace_hardirqs_on+0x10/0x10
[   48.830591]  ? futex_exit_release+0x70/0x70
[   48.830598]  ? __might_sleep+0x93/0xb0
[   48.830611]  ? tty_vhangup+0x30/0x30
[   48.858915]  ? do_vfs_ioctl+0xef/0x1060
[   48.863051]  ? selinux_file_mprotect+0x5d0/0x5d0
[   48.867927]  ? lock_downgrade+0x740/0x740
[   48.872078]  ? ioctl_preallocate+0x1c0/0x1c0
[   48.876605]  SyS_futex+0x215/0x310
[   48.880161]  ? do_futex+0x19e0/0x19e0
[   48.883958]  ? fput+0xd4/0x150
[   48.887145]  ? SyS_ioctl+0x67/0xc0
[   48.891074]  ? do_futex+0x19e0/0x19e0
[   48.894874]  do_syscall_64+0x1e8/0x640
[   48.898984]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   48.903837]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   48.909236] RIP: 0033:0x4469a9
[   48.912420] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   48.920409] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   48.927672] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
executing program
executing program
[   48.935114] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   48.942702] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   48.950149] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   48.957455] CPU: 0 PID: 7334 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   48.965552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.975417] Call Trace:
[   48.978016]  dump_stack+0x142/0x197
[   48.980007] FAULT_INJECTION: forcing a failure.
[   48.980007] name fail_futex, interval 1, probability 0, space 0, times 0
[   48.981662]  should_fail.cold+0x10f/0x159
[   48.981673]  get_futex_key+0xb88/0x1400
[   48.981686]  ? futex_lock_pi_atomic+0x220/0x220
[   49.006765]  ? up_read+0x1a/0x40
[   49.010263]  futex_wake+0xd9/0x430
[   49.013800]  ? get_futex_key+0x1400/0x1400
[   49.018196]  ? lock_downgrade+0x740/0x740
[   49.022890]  do_futex+0x290/0x19e0
[   49.026427]  ? tty_ldisc_deref+0x35/0x40
[   49.030741]  ? tty_ioctl+0x485/0x1320
[   49.034550]  ? get_pid_task+0xbf/0x140
[   49.035598] FAULT_INJECTION: forcing a failure.
[   49.035598] name fail_futex, interval 1, probability 0, space 0, times 0
[   49.038504]  ? tty_vhangup+0x30/0x30
[   49.038513]  ? trace_hardirqs_on+0x10/0x10
[   49.038526]  ? futex_exit_release+0x70/0x70
[   49.062805]  ? __might_sleep+0x93/0xb0
[   49.066691]  ? tty_vhangup+0x30/0x30
[   49.070886]  ? do_vfs_ioctl+0xef/0x1060
[   49.075027]  ? selinux_file_mprotect+0x5d0/0x5d0
[   49.080224]  ? lock_downgrade+0x740/0x740
executing program
[   49.084602]  ? ioctl_preallocate+0x1c0/0x1c0
[   49.089133]  SyS_futex+0x215/0x310
[   49.092778]  ? do_futex+0x19e0/0x19e0
[   49.096946]  ? fput+0xd4/0x150
[   49.100160]  ? SyS_ioctl+0x67/0xc0
[   49.103696]  ? do_futex+0x19e0/0x19e0
[   49.107514]  do_syscall_64+0x1e8/0x640
[   49.111487]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   49.120678]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   49.126137] RIP: 0033:0x4469a9
[   49.129337] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   49.137048] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   49.142792] FAULT_INJECTION: forcing a failure.
[   49.142792] name fail_futex, interval 1, probability 0, space 0, times 0
[   49.144663] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   49.144666] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   49.144670] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   49.144674] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   49.145444] CPU: 0 PID: 7347 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   49.194130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.203742] Call Trace:
[   49.206505]  dump_stack+0x142/0x197
[   49.210546]  should_fail.cold+0x10f/0x159
[   49.214698]  get_futex_key+0xb88/0x1400
[   49.218679]  ? futex_lock_pi_atomic+0x220/0x220
[   49.223348]  ? up_read+0x1a/0x40
[   49.226709]  futex_wake+0xd9/0x430
[   49.230432]  ? get_futex_key+0x1400/0x1400
[   49.234664]  ? lock_downgrade+0x740/0x740
[   49.238807]  do_futex+0x290/0x19e0
[   49.242558]  ? tty_ldisc_deref+0x35/0x40
[   49.246615]  ? tty_ioctl+0x485/0x1320
[   49.250411]  ? get_pid_task+0xbf/0x140
[   49.254390]  ? tty_vhangup+0x30/0x30
[   49.258120]  ? trace_hardirqs_on+0x10/0x10
[   49.262360]  ? futex_exit_release+0x70/0x70
[   49.266673]  ? __might_sleep+0x93/0xb0
[   49.270730]  ? tty_vhangup+0x30/0x30
[   49.274439]  ? do_vfs_ioctl+0xef/0x1060
[   49.278414]  ? selinux_file_mprotect+0x5d0/0x5d0
[   49.283167]  ? lock_downgrade+0x740/0x740
[   49.287318]  ? ioctl_preallocate+0x1c0/0x1c0
[   49.291853]  SyS_futex+0x215/0x310
[   49.295391]  ? do_futex+0x19e0/0x19e0
[   49.299329]  ? fput+0xd4/0x150
[   49.302517]  ? SyS_ioctl+0x67/0xc0
[   49.306184]  ? do_futex+0x19e0/0x19e0
[   49.310158]  do_syscall_64+0x1e8/0x640
[   49.314220]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   49.319351]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   49.324537] RIP: 0033:0x4469a9
[   49.327846] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   49.335552] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   49.342932] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   49.350196] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   49.357822] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   49.365207] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   49.372484] CPU: 1 PID: 7351 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   49.380643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.390291] Call Trace:
[   49.392890]  dump_stack+0x142/0x197
[   49.396677]  should_fail.cold+0x10f/0x159
[   49.400999]  get_futex_key+0xb88/0x1400
[   49.405223]  ? futex_lock_pi_atomic+0x220/0x220
[   49.409886]  ? up_read+0x1a/0x40
[   49.413408]  futex_wake+0xd9/0x430
[   49.416945]  ? get_futex_key+0x1400/0x1400
[   49.421313]  ? lock_downgrade+0x740/0x740
[   49.425585]  do_futex+0x290/0x19e0
[   49.429168]  ? tty_ldisc_deref+0x35/0x40
[   49.433367]  ? tty_ioctl+0x485/0x1320
[   49.437259]  ? get_pid_task+0xbf/0x140
[   49.441152]  ? tty_vhangup+0x30/0x30
[   49.444862]  ? trace_hardirqs_on+0x10/0x10
[   49.449315]  ? futex_exit_release+0x70/0x70
[   49.453641]  ? __might_sleep+0x93/0xb0
[   49.457808]  ? tty_vhangup+0x30/0x30
[   49.461641]  ? do_vfs_ioctl+0xef/0x1060
[   49.465753]  ? selinux_file_mprotect+0x5d0/0x5d0
[   49.470530]  ? lock_downgrade+0x740/0x740
[   49.474686]  ? ioctl_preallocate+0x1c0/0x1c0
[   49.479094]  SyS_futex+0x215/0x310
[   49.482898]  ? do_futex+0x19e0/0x19e0
[   49.486690]  ? fput+0xd4/0x150
[   49.490031]  ? SyS_ioctl+0x67/0xc0
[   49.493570]  ? do_futex+0x19e0/0x19e0
[   49.497371]  do_syscall_64+0x1e8/0x640
[   49.501332]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   49.506244]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   49.511567] RIP: 0033:0x4469a9
[   49.514758] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   49.522699] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   49.529969] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   49.537438] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   49.544896] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   49.552176] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   49.559461] CPU: 0 PID: 7345 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   49.567512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.577072] Call Trace:
[   49.579667]  dump_stack+0x142/0x197
[   49.583306]  should_fail.cold+0x10f/0x159
[   49.587485]  get_futex_key+0xb88/0x1400
[   49.591463]  ? futex_lock_pi_atomic+0x220/0x220
[   49.596130]  ? up_read+0x1a/0x40
[   49.599692]  futex_wake+0xd9/0x430
[   49.603261]  ? get_futex_key+0x1400/0x1400
[   49.607737]  ? lock_downgrade+0x740/0x740
[   49.611896]  do_futex+0x290/0x19e0
[   49.615632]  ? tty_ldisc_deref+0x35/0x40
[   49.619766]  ? tty_ioctl+0x485/0x1320
[   49.623572]  ? get_pid_task+0xbf/0x140
[   49.627458]  ? tty_vhangup+0x30/0x30
[   49.631274]  ? trace_hardirqs_on+0x10/0x10
[   49.635625]  ? futex_exit_release+0x70/0x70
[   49.639941]  ? __might_sleep+0x93/0xb0
[   49.643835]  ? tty_vhangup+0x30/0x30
[   49.647687]  ? do_vfs_ioctl+0xef/0x1060
[   49.651781]  ? selinux_file_mprotect+0x5d0/0x5d0
[   49.656534]  ? lock_downgrade+0x740/0x740
[   49.660781]  ? ioctl_preallocate+0x1c0/0x1c0
[   49.665399]  SyS_futex+0x215/0x310
[   49.668940]  ? do_futex+0x19e0/0x19e0
[   49.672741]  ? fput+0xd4/0x150
[   49.675929]  ? SyS_ioctl+0x67/0xc0
[   49.679469]  ? do_futex+0x19e0/0x19e0
[   49.683266]  do_syscall_64+0x1e8/0x640
[   49.687160]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   49.692012]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   49.697286] RIP: 0033:0x4469a9
[   49.700471] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   49.708349] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   49.715811] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   49.723259] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   49.730643] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   49.738101] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   49.745380] CPU: 1 PID: 7354 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   49.753679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.756197] FAULT_INJECTION: forcing a failure.
[   49.756197] name fail_futex, interval 1, probability 0, space 0, times 0
[   49.763118] Call Trace:
[   49.763136]  dump_stack+0x142/0x197
[   49.763148]  should_fail.cold+0x10f/0x159
[   49.763158]  get_futex_key+0xb88/0x1400
[   49.763171]  ? futex_lock_pi_atomic+0x220/0x220
[   49.774779] FAULT_INJECTION: forcing a failure.
[   49.774779] name fail_futex, interval 1, probability 0, space 0, times 0
[   49.777252]  ? up_read+0x1a/0x40
[   49.777263]  futex_wake+0xd9/0x430
[   49.777273]  ? get_futex_key+0x1400/0x1400
[   49.782997] FAULT_INJECTION: forcing a failure.
[   49.782997] name fail_futex, interval 1, probability 0, space 0, times 0
[   49.785049]  ? lock_downgrade+0x740/0x740
[   49.785060]  do_futex+0x290/0x19e0
[   49.785069]  ? tty_ldisc_deref+0x35/0x40
[   49.839715]  ? tty_ioctl+0x485/0x1320
[   49.843515]  ? get_pid_task+0xbf/0x140
[   49.847392]  ? tty_vhangup+0x30/0x30
[   49.851132]  ? trace_hardirqs_on+0x10/0x10
[   49.855467]  ? futex_exit_release+0x70/0x70
[   49.859906]  ? __might_sleep+0x93/0xb0
[   49.863799]  ? tty_vhangup+0x30/0x30
[   49.867518]  ? do_vfs_ioctl+0xef/0x1060
[   49.871631]  ? selinux_file_mprotect+0x5d0/0x5d0
[   49.876380]  ? lock_downgrade+0x740/0x740
[   49.880520]  ? ioctl_preallocate+0x1c0/0x1c0
[   49.884931]  SyS_futex+0x215/0x310
[   49.888468]  ? do_futex+0x19e0/0x19e0
[   49.892266]  ? fput+0xd4/0x150
[   49.895451]  ? SyS_ioctl+0x67/0xc0
[   49.899022]  ? do_futex+0x19e0/0x19e0
[   49.902824]  do_syscall_64+0x1e8/0x640
[   49.906704]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   49.913568]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   49.918880] RIP: 0033:0x4469a9
[   49.922112] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   49.929821] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
executing program
executing program
executing program
[   49.937179] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   49.944657] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   49.952096] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   49.959530] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   49.966813] CPU: 0 PID: 7358 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   49.974718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.984289] Call Trace:
[   49.986874]  dump_stack+0x142/0x197
[   49.990678]  should_fail.cold+0x10f/0x159
[   49.995132]  get_futex_key+0xb88/0x1400
[   49.999108]  ? futex_lock_pi_atomic+0x220/0x220
[   50.003783]  ? up_read+0x1a/0x40
[   50.007152]  futex_wake+0xd9/0x430
[   50.010691]  ? get_futex_key+0x1400/0x1400
[   50.014930]  ? lock_downgrade+0x740/0x740
[   50.019273]  do_futex+0x290/0x19e0
[   50.022907]  ? tty_ldisc_deref+0x35/0x40
[   50.026969]  ? tty_ioctl+0x485/0x1320
[   50.030933]  ? trace_hardirqs_on+0x10/0x10
[   50.035182]  ? tty_vhangup+0x30/0x30
executing program
[   50.038900]  ? trace_hardirqs_on+0x10/0x10
[   50.043227]  ? futex_exit_release+0x70/0x70
[   50.047544]  ? __might_sleep+0x93/0xb0
[   50.051434]  ? tty_vhangup+0x30/0x30
[   50.055297]  ? do_vfs_ioctl+0xef/0x1060
[   50.059272]  ? selinux_file_mprotect+0x5d0/0x5d0
[   50.064024]  ? lock_downgrade+0x740/0x740
[   50.068169]  ? ioctl_preallocate+0x1c0/0x1c0
[   50.072585]  SyS_futex+0x215/0x310
[   50.076244]  ? do_futex+0x19e0/0x19e0
[   50.080043]  ? fput+0xd4/0x150
[   50.083240]  ? SyS_ioctl+0x67/0xc0
[   50.086780]  ? do_futex+0x19e0/0x19e0
[   50.090584]  do_syscall_64+0x1e8/0x640
[   50.094475]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   50.099342]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   50.104777] RIP: 0033:0x4469a9
[   50.107970] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   50.115483] FAULT_INJECTION: forcing a failure.
[   50.115483] name fail_futex, interval 1, probability 0, space 0, times 0
[   50.115675] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   50.134988] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   50.142384] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   50.149676] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   50.156956] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   50.164590] CPU: 1 PID: 7362 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   50.172571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.182137] Call Trace:
[   50.184885]  dump_stack+0x142/0x197
[   50.188512]  should_fail.cold+0x10f/0x159
[   50.192666]  get_futex_key+0xb88/0x1400
[   50.196814]  ? futex_lock_pi_atomic+0x220/0x220
[   50.201485]  ? up_read+0x1a/0x40
[   50.204852]  futex_wake+0xd9/0x430
[   50.209334]  ? get_futex_key+0x1400/0x1400
[   50.213730]  ? lock_downgrade+0x740/0x740
[   50.218049]  do_futex+0x290/0x19e0
[   50.221588]  ? tty_ldisc_deref+0x35/0x40
[   50.225890]  ? tty_ioctl+0x485/0x1320
[   50.229686]  ? get_pid_task+0xbf/0x140
[   50.233657]  ? tty_vhangup+0x30/0x30
[   50.237475]  ? trace_hardirqs_on+0x10/0x10
[   50.241784]  ? futex_exit_release+0x70/0x70
[   50.246102]  ? __might_sleep+0x93/0xb0
[   50.249998]  ? tty_vhangup+0x30/0x30
[   50.253848]  ? do_vfs_ioctl+0xef/0x1060
[   50.258337]  ? selinux_file_mprotect+0x5d0/0x5d0
[   50.263085]  ? lock_downgrade+0x740/0x740
[   50.267231]  ? ioctl_preallocate+0x1c0/0x1c0
[   50.271648]  SyS_futex+0x215/0x310
[   50.275188]  ? do_futex+0x19e0/0x19e0
[   50.278993]  ? fput+0xd4/0x150
[   50.282214]  ? SyS_ioctl+0x67/0xc0
[   50.285763]  ? do_futex+0x19e0/0x19e0
[   50.289566]  do_syscall_64+0x1e8/0x640
[   50.293564]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   50.298569]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   50.303753] RIP: 0033:0x4469a9
[   50.306935] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   50.314644] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   50.321916] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   50.329316] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   50.337109] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   50.344868] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   50.352420] CPU: 0 PID: 7360 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   50.360613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.370130] Call Trace:
[   50.372734]  dump_stack+0x142/0x197
[   50.376551]  should_fail.cold+0x10f/0x159
[   50.380878]  get_futex_key+0xb88/0x1400
[   50.385162]  ? futex_lock_pi_atomic+0x220/0x220
[   50.389821]  ? up_read+0x1a/0x40
[   50.393186]  futex_wake+0xd9/0x430
[   50.396869]  ? get_futex_key+0x1400/0x1400
[   50.401210]  ? lock_downgrade+0x740/0x740
[   50.405377]  do_futex+0x290/0x19e0
[   50.408924]  ? tty_ldisc_deref+0x35/0x40
[   50.413072]  ? tty_ioctl+0x485/0x1320
[   50.416881]  ? get_pid_task+0xbf/0x140
[   50.420772]  ? tty_vhangup+0x30/0x30
[   50.424571]  ? trace_hardirqs_on+0x10/0x10
[   50.429027]  ? futex_exit_release+0x70/0x70
[   50.434997]  ? __might_sleep+0x93/0xb0
[   50.438882]  ? tty_vhangup+0x30/0x30
[   50.442711]  ? do_vfs_ioctl+0xef/0x1060
[   50.446818]  ? selinux_file_mprotect+0x5d0/0x5d0
[   50.451575]  ? lock_downgrade+0x740/0x740
[   50.455728]  ? ioctl_preallocate+0x1c0/0x1c0
[   50.460224]  SyS_futex+0x215/0x310
[   50.463768]  ? do_futex+0x19e0/0x19e0
[   50.467574]  ? fput+0xd4/0x150
[   50.470762]  ? SyS_ioctl+0x67/0xc0
[   50.474331]  ? do_futex+0x19e0/0x19e0
[   50.478292]  do_syscall_64+0x1e8/0x640
[   50.482178]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   50.487019]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   50.492298] RIP: 0033:0x4469a9
[   50.495487] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   50.503282] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   50.510545] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   50.517941] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   50.525240] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   50.532508] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   50.539955] CPU: 1 PID: 7359 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   50.543538] FAULT_INJECTION: forcing a failure.
[   50.543538] name fail_futex, interval 1, probability 0, space 0, times 0
[   50.547873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.547876] Call Trace:
[   50.547891]  dump_stack+0x142/0x197
[   50.547905]  should_fail.cold+0x10f/0x159
[   50.571099] FAULT_INJECTION: forcing a failure.
[   50.571099] name fail_futex, interval 1, probability 0, space 0, times 0
[   50.571751]  get_futex_key+0xb88/0x1400
[   50.595053]  ? futex_lock_pi_atomic+0x220/0x220
[   50.599982]  ? up_read+0x1a/0x40
[   50.603351]  futex_wake+0xd9/0x430
[   50.606896]  ? get_futex_key+0x1400/0x1400
[   50.611135]  ? lock_downgrade+0x740/0x740
[   50.615292]  do_futex+0x290/0x19e0
[   50.619005]  ? tty_ldisc_deref+0x35/0x40
[   50.623126]  ? tty_ioctl+0x485/0x1320
[   50.626918]  ? get_pid_task+0xbf/0x140
[   50.630912]  ? tty_vhangup+0x30/0x30
[   50.634884]  ? trace_hardirqs_on+0x10/0x10
[   50.639118]  ? futex_exit_release+0x70/0x70
[   50.643445]  ? __might_sleep+0x93/0xb0
[   50.647334]  ? tty_vhangup+0x30/0x30
[   50.651062]  ? do_vfs_ioctl+0xef/0x1060
[   50.655049]  ? selinux_file_mprotect+0x5d0/0x5d0
[   50.659816]  ? lock_downgrade+0x740/0x740
[   50.663965]  ? ioctl_preallocate+0x1c0/0x1c0
[   50.668509]  SyS_futex+0x215/0x310
[   50.672276]  ? do_futex+0x19e0/0x19e0
[   50.676081]  ? fput+0xd4/0x150
[   50.679270]  ? SyS_ioctl+0x67/0xc0
[   50.682817]  ? do_futex+0x19e0/0x19e0
[   50.686621]  do_syscall_64+0x1e8/0x640
[   50.690695]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   50.695548]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   50.700741] RIP: 0033:0x4469a9
[   50.703925] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   50.711727] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   50.719086] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   50.726353] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   50.733895] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
executing program
executing program
[   50.741317] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   50.748784] CPU: 0 PID: 7366 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   50.756678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.766425] Call Trace:
[   50.769155]  dump_stack+0x142/0x197
[   50.772785]  should_fail.cold+0x10f/0x159
[   50.776933]  get_futex_key+0xb88/0x1400
[   50.781242]  ? futex_lock_pi_atomic+0x220/0x220
[   50.787160]  ? up_read+0x1a/0x40
[   50.790643]  futex_wake+0xd9/0x430
[   50.794381]  ? get_futex_key+0x1400/0x1400
[   50.798883]  ? lock_downgrade+0x740/0x740
[   50.803219]  do_futex+0x290/0x19e0
[   50.806914]  ? tty_ldisc_deref+0x35/0x40
[   50.811108]  ? tty_ioctl+0x485/0x1320
[   50.815079]  ? get_pid_task+0xbf/0x140
[   50.819110]  ? tty_vhangup+0x30/0x30
[   50.822830]  ? trace_hardirqs_on+0x10/0x10
[   50.827077]  ? futex_exit_release+0x70/0x70
[   50.831398]  ? __might_sleep+0x93/0xb0
[   50.835294]  ? tty_vhangup+0x30/0x30
[   50.839053]  ? do_vfs_ioctl+0xef/0x1060
executing program
[   50.843269]  ? selinux_file_mprotect+0x5d0/0x5d0
[   50.848197]  ? lock_downgrade+0x740/0x740
[   50.852344]  ? ioctl_preallocate+0x1c0/0x1c0
[   50.856905]  SyS_futex+0x215/0x310
[   50.860450]  ? do_futex+0x19e0/0x19e0
[   50.864572]  ? fput+0xd4/0x150
[   50.867766]  ? SyS_ioctl+0x67/0xc0
[   50.871312]  ? do_futex+0x19e0/0x19e0
[   50.875190]  do_syscall_64+0x1e8/0x640
[   50.879191]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   50.884156]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   50.889351] RIP: 0033:0x4469a9
[   50.892727] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   50.895319] FAULT_INJECTION: forcing a failure.
[   50.895319] name fail_futex, interval 1, probability 0, space 0, times 0
[   50.900597] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   50.900601] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   50.900605] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   50.900608] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   50.900611] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   50.901100] CPU: 0 PID: 7364 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   50.956741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.966140] Call Trace:
[   50.968728]  dump_stack+0x142/0x197
[   50.972355]  should_fail.cold+0x10f/0x159
[   50.976496]  get_futex_key+0xb88/0x1400
[   50.980538]  ? futex_lock_pi_atomic+0x220/0x220
[   50.985199]  ? up_read+0x1a/0x40
[   50.988558]  futex_wake+0xd9/0x430
[   50.992095]  ? get_futex_key+0x1400/0x1400
[   50.996350]  ? lock_downgrade+0x740/0x740
[   51.000490]  do_futex+0x290/0x19e0
[   51.004107]  ? tty_ldisc_deref+0x35/0x40
[   51.008159]  ? tty_ioctl+0x485/0x1320
[   51.012040]  ? get_pid_task+0xbf/0x140
[   51.015930]  ? tty_vhangup+0x30/0x30
[   51.019639]  ? trace_hardirqs_on+0x10/0x10
[   51.023868]  ? futex_exit_release+0x70/0x70
[   51.028183]  ? __might_sleep+0x93/0xb0
[   51.032073]  ? tty_vhangup+0x30/0x30
[   51.035847]  ? do_vfs_ioctl+0xef/0x1060
[   51.039830]  ? selinux_file_mprotect+0x5d0/0x5d0
[   51.044587]  ? lock_downgrade+0x740/0x740
[   51.048928]  ? ioctl_preallocate+0x1c0/0x1c0
[   51.053336]  SyS_futex+0x215/0x310
[   51.057074]  ? do_futex+0x19e0/0x19e0
[   51.060876]  ? fput+0xd4/0x150
[   51.064067]  ? SyS_ioctl+0x67/0xc0
[   51.067602]  ? do_futex+0x19e0/0x19e0
[   51.071404]  do_syscall_64+0x1e8/0x640
[   51.075286]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   51.080129]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   51.085309] RIP: 0033:0x4469a9
[   51.088488] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   51.096210] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   51.103476] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   51.110740] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   51.118005] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   51.125268] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   51.132668] CPU: 1 PID: 7352 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   51.140564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.141104] FAULT_INJECTION: forcing a failure.
[   51.141104] name fail_futex, interval 1, probability 0, space 0, times 0
[   51.150023] Call Trace:
[   51.150037]  dump_stack+0x142/0x197
[   51.150048]  should_fail.cold+0x10f/0x159
[   51.150058]  get_futex_key+0xb88/0x1400
[   51.150069]  ? futex_lock_pi_atomic+0x220/0x220
[   51.161868] FAULT_INJECTION: forcing a failure.
[   51.161868] name fail_futex, interval 1, probability 0, space 0, times 0
[   51.164067]  ? up_read+0x1a/0x40
[   51.164077]  futex_wake+0xd9/0x430
[   51.164086]  ? get_futex_key+0x1400/0x1400
[   51.202929]  ? lock_downgrade+0x740/0x740
[   51.207116]  do_futex+0x290/0x19e0
[   51.210663]  ? tty_ldisc_deref+0x35/0x40
[   51.214726]  ? tty_ioctl+0x485/0x1320
[   51.218663]  ? get_pid_task+0xbf/0x140
[   51.222841]  ? tty_vhangup+0x30/0x30
[   51.226689]  ? trace_hardirqs_on+0x10/0x10
[   51.230976]  ? futex_exit_release+0x70/0x70
[   51.235473]  ? __might_sleep+0x93/0xb0
[   51.239359]  ? tty_vhangup+0x30/0x30
[   51.243070]  ? do_vfs_ioctl+0xef/0x1060
[   51.247184]  ? selinux_file_mprotect+0x5d0/0x5d0
[   51.252059]  ? lock_downgrade+0x740/0x740
[   51.256358]  ? ioctl_preallocate+0x1c0/0x1c0
[   51.261001]  SyS_futex+0x215/0x310
[   51.264544]  ? do_futex+0x19e0/0x19e0
[   51.268501]  ? fput+0xd4/0x150
[   51.271695]  ? SyS_ioctl+0x67/0xc0
[   51.275399]  ? do_futex+0x19e0/0x19e0
[   51.279415]  do_syscall_64+0x1e8/0x640
[   51.283325]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   51.288330]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
executing program
executing program
[   51.293664] RIP: 0033:0x4469a9
[   51.297054] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   51.304936] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   51.312639] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   51.320034] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   51.327548] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   51.334919] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
executing program
[   51.342384] CPU: 0 PID: 7372 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   51.350276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.360475] Call Trace:
[   51.363255]  dump_stack+0x142/0x197
[   51.367210]  should_fail.cold+0x10f/0x159
[   51.371480]  get_futex_key+0xb88/0x1400
[   51.375553]  ? futex_lock_pi_atomic+0x220/0x220
[   51.380225]  ? up_read+0x1a/0x40
[   51.383598]  futex_wake+0xd9/0x430
[   51.387312]  ? get_futex_key+0x1400/0x1400
[   51.391546]  ? lock_downgrade+0x740/0x740
[   51.395689]  do_futex+0x290/0x19e0
[   51.400361]  ? tty_ldisc_deref+0x35/0x40
[   51.404427]  ? tty_ioctl+0x485/0x1320
[   51.408828]  ? get_pid_task+0xbf/0x140
[   51.412764]  ? tty_vhangup+0x30/0x30
[   51.416490]  ? trace_hardirqs_on+0x10/0x10
[   51.419691] FAULT_INJECTION: forcing a failure.
[   51.419691] name fail_futex, interval 1, probability 0, space 0, times 0
[   51.420744]  ? futex_exit_release+0x70/0x70
[   51.420752]  ? __might_sleep+0x93/0xb0
[   51.420763]  ? tty_vhangup+0x30/0x30
executing program
[   51.420771]  ? do_vfs_ioctl+0xef/0x1060
[   51.420779]  ? selinux_file_mprotect+0x5d0/0x5d0
[   51.420786]  ? lock_downgrade+0x740/0x740
[   51.420797]  ? ioctl_preallocate+0x1c0/0x1c0
[   51.462049]  SyS_futex+0x215/0x310
[   51.465584]  ? do_futex+0x19e0/0x19e0
[   51.469533]  ? fput+0xd4/0x150
[   51.472915]  ? SyS_ioctl+0x67/0xc0
[   51.476463]  ? do_futex+0x19e0/0x19e0
[   51.480405]  do_syscall_64+0x1e8/0x640
[   51.484285]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   51.489130]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   51.494318] RIP: 0033:0x4469a9
[   51.497501] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   51.505351] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   51.512797] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   51.520101] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   51.527839] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   51.535250] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   51.543142] CPU: 0 PID: 7373 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   51.551135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.556592] FAULT_INJECTION: forcing a failure.
[   51.556592] name fail_futex, interval 1, probability 0, space 0, times 0
[   51.560488] Call Trace:
[   51.560506]  dump_stack+0x142/0x197
[   51.560517]  should_fail.cold+0x10f/0x159
[   51.560526]  get_futex_key+0xb88/0x1400
[   51.560536]  ? futex_lock_pi_atomic+0x220/0x220
[   51.560543]  ? up_read+0x1a/0x40
[   51.560557]  futex_wake+0xd9/0x430
[   51.597875]  ? get_futex_key+0x1400/0x1400
[   51.602234]  ? lock_downgrade+0x740/0x740
[   51.606374]  do_futex+0x290/0x19e0
[   51.609910]  ? tty_ldisc_deref+0x35/0x40
[   51.613967]  ? tty_ioctl+0x485/0x1320
[   51.617763]  ? get_pid_task+0xbf/0x140
[   51.621654]  ? tty_vhangup+0x30/0x30
[   51.625358]  ? trace_hardirqs_on+0x10/0x10
[   51.629584]  ? futex_exit_release+0x70/0x70
[   51.634025]  ? __might_sleep+0x93/0xb0
[   51.637907]  ? tty_vhangup+0x30/0x30
[   51.641618]  ? do_vfs_ioctl+0xef/0x1060
[   51.645584]  ? selinux_file_mprotect+0x5d0/0x5d0
[   51.650334]  ? lock_downgrade+0x740/0x740
[   51.654475]  ? ioctl_preallocate+0x1c0/0x1c0
[   51.658874]  SyS_futex+0x215/0x310
[   51.662418]  ? do_futex+0x19e0/0x19e0
[   51.666214]  ? fput+0xd4/0x150
[   51.669399]  ? SyS_ioctl+0x67/0xc0
[   51.672936]  ? do_futex+0x19e0/0x19e0
[   51.676785]  do_syscall_64+0x1e8/0x640
[   51.680667]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   51.686515]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   51.691697] RIP: 0033:0x4469a9
[   51.694879] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   51.702577] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   51.709840] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   51.717104] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   51.724525] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   51.731789] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   51.739281] CPU: 1 PID: 7376 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   51.746619] FAULT_INJECTION: forcing a failure.
[   51.746619] name fail_futex, interval 1, probability 0, space 0, times 0
[   51.747256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.747260] Call Trace:
[   51.747277]  dump_stack+0x142/0x197
[   51.760364] FAULT_INJECTION: forcing a failure.
[   51.760364] name fail_futex, interval 1, probability 0, space 0, times 0
[   51.768324]  should_fail.cold+0x10f/0x159
[   51.768337]  get_futex_key+0xb88/0x1400
[   51.794400]  ? futex_lock_pi_atomic+0x220/0x220
[   51.799064]  ? up_read+0x1a/0x40
[   51.802430]  futex_wake+0xd9/0x430
[   51.805968]  ? get_futex_key+0x1400/0x1400
[   51.810197]  ? lock_downgrade+0x740/0x740
[   51.814367]  do_futex+0x290/0x19e0
[   51.817905]  ? tty_ldisc_deref+0x35/0x40
[   51.821959]  ? tty_ioctl+0x485/0x1320
[   51.825805]  ? get_pid_task+0xbf/0x140
[   51.829682]  ? tty_vhangup+0x30/0x30
[   51.833390]  ? trace_hardirqs_on+0x10/0x10
[   51.837619]  ? futex_exit_release+0x70/0x70
[   51.841930]  ? __might_sleep+0x93/0xb0
[   51.845810]  ? tty_vhangup+0x30/0x30
[   51.849600]  ? do_vfs_ioctl+0xef/0x1060
[   51.853652]  ? selinux_file_mprotect+0x5d0/0x5d0
[   51.858407]  ? lock_downgrade+0x740/0x740
[   51.862674]  ? ioctl_preallocate+0x1c0/0x1c0
[   51.867079]  SyS_futex+0x215/0x310
[   51.870672]  ? do_futex+0x19e0/0x19e0
[   51.874465]  ? fput+0xd4/0x150
[   51.877851]  ? SyS_ioctl+0x67/0xc0
[   51.881392]  ? do_futex+0x19e0/0x19e0
[   51.885286]  do_syscall_64+0x1e8/0x640
[   51.889167]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   51.894010]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
executing program
executing program
[   51.899190] RIP: 0033:0x4469a9
[   51.902369] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   51.910071] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   51.917335] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   51.924594] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   51.931861] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   51.939237] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   51.946632] CPU: 0 PID: 7382 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   51.954902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.964329] Call Trace:
[   51.966917]  dump_stack+0x142/0x197
[   51.970544]  should_fail.cold+0x10f/0x159
[   51.974689]  get_futex_key+0xb88/0x1400
[   51.978656]  ? futex_lock_pi_atomic+0x220/0x220
[   51.983317]  ? up_read+0x1a/0x40
[   51.986677]  futex_wake+0xd9/0x430
[   51.990271]  ? get_futex_key+0x1400/0x1400
[   51.994503]  ? lock_downgrade+0x740/0x740
[   51.998646]  do_futex+0x290/0x19e0
[   52.002177]  ? tty_ldisc_deref+0x35/0x40
[   52.006227]  ? tty_ioctl+0x485/0x1320
[   52.010021]  ? get_pid_task+0xbf/0x140
[   52.013905]  ? tty_vhangup+0x30/0x30
[   52.017819]  ? trace_hardirqs_on+0x10/0x10
[   52.022163]  ? futex_exit_release+0x70/0x70
[   52.026478]  ? __might_sleep+0x93/0xb0
[   52.030357]  ? tty_vhangup+0x30/0x30
[   52.034153]  ? do_vfs_ioctl+0xef/0x1060
[   52.038124]  ? selinux_file_mprotect+0x5d0/0x5d0
[   52.042879]  ? lock_downgrade+0x740/0x740
executing program
[   52.047024]  ? ioctl_preallocate+0x1c0/0x1c0
[   52.051427]  SyS_futex+0x215/0x310
[   52.054993]  ? do_futex+0x19e0/0x19e0
[   52.058785]  ? fput+0xd4/0x150
[   52.062018]  ? SyS_ioctl+0x67/0xc0
[   52.065548]  ? do_futex+0x19e0/0x19e0
[   52.069349]  do_syscall_64+0x1e8/0x640
[   52.073233]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   52.078170]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   52.083448] RIP: 0033:0x4469a9
[   52.086761] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   52.094575] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   52.101838] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   52.109101] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   52.116407] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   52.124201] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   52.132362] CPU: 0 PID: 7380 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   52.140412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.150068] Call Trace:
[   52.152670]  dump_stack+0x142/0x197
[   52.156624]  should_fail.cold+0x10f/0x159
[   52.157446] FAULT_INJECTION: forcing a failure.
[   52.157446] name fail_futex, interval 1, probability 0, space 0, times 0
[   52.160779]  get_futex_key+0xb88/0x1400
[   52.160788]  ? futex_lock_pi_atomic+0x220/0x220
[   52.160795]  ? up_read+0x1a/0x40
[   52.160803]  futex_wake+0xd9/0x430
[   52.160811]  ? get_futex_key+0x1400/0x1400
[   52.160817]  ? lock_downgrade+0x740/0x740
[   52.160828]  do_futex+0x290/0x19e0
[   52.199754]  ? tty_ldisc_deref+0x35/0x40
[   52.203815]  ? tty_ioctl+0x485/0x1320
[   52.207608]  ? get_pid_task+0xbf/0x140
[   52.211605]  ? tty_vhangup+0x30/0x30
[   52.215375]  ? trace_hardirqs_on+0x10/0x10
[   52.219649]  ? futex_exit_release+0x70/0x70
[   52.224112]  ? __might_sleep+0x93/0xb0
[   52.228127]  ? tty_vhangup+0x30/0x30
[   52.231840]  ? do_vfs_ioctl+0xef/0x1060
[   52.235811]  ? selinux_file_mprotect+0x5d0/0x5d0
[   52.240730]  ? lock_downgrade+0x740/0x740
[   52.244881]  ? ioctl_preallocate+0x1c0/0x1c0
[   52.249424]  SyS_futex+0x215/0x310
[   52.252969]  ? do_futex+0x19e0/0x19e0
[   52.256781]  ? fput+0xd4/0x150
[   52.259985]  ? SyS_ioctl+0x67/0xc0
[   52.263528]  ? do_futex+0x19e0/0x19e0
[   52.267321]  do_syscall_64+0x1e8/0x640
[   52.271204]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   52.276046]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   52.281465] RIP: 0033:0x4469a9
[   52.284653] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   52.292513] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   52.299777] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   52.307168] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   52.314704] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   52.322117] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   52.329577] CPU: 1 PID: 7385 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   52.337687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.347129] Call Trace:
[   52.349721]  dump_stack+0x142/0x197
[   52.353434]  should_fail.cold+0x10f/0x159
[   52.357708]  get_futex_key+0xb88/0x1400
[   52.362121]  ? futex_lock_pi_atomic+0x220/0x220
[   52.366786]  ? up_read+0x1a/0x40
[   52.370236]  futex_wake+0xd9/0x430
[   52.373893]  ? get_futex_key+0x1400/0x1400
[   52.378122]  ? lock_downgrade+0x740/0x740
[   52.382469]  do_futex+0x290/0x19e0
[   52.386157]  ? tty_ldisc_deref+0x35/0x40
[   52.390390]  ? tty_ioctl+0x485/0x1320
[   52.394191]  ? get_pid_task+0xbf/0x140
[   52.398126]  ? tty_vhangup+0x30/0x30
[   52.402102]  ? trace_hardirqs_on+0x10/0x10
[   52.406334]  ? futex_exit_release+0x70/0x70
[   52.410656]  ? __might_sleep+0x93/0xb0
[   52.414543]  ? tty_vhangup+0x30/0x30
[   52.418454]  ? do_vfs_ioctl+0xef/0x1060
[   52.422427]  ? selinux_file_mprotect+0x5d0/0x5d0
[   52.427397]  ? lock_downgrade+0x740/0x740
[   52.431541]  ? ioctl_preallocate+0x1c0/0x1c0
[   52.436040]  SyS_futex+0x215/0x310
[   52.439779]  ? do_futex+0x19e0/0x19e0
[   52.443576]  ? fput+0xd4/0x150
[   52.446772]  ? SyS_ioctl+0x67/0xc0
[   52.450438]  ? do_futex+0x19e0/0x19e0
[   52.454236]  do_syscall_64+0x1e8/0x640
[   52.458114]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   52.463124]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   52.468307] RIP: 0033:0x4469a9
[   52.471493] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   52.479367] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   52.486722] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   52.494006] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   52.501401] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   52.508927] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   52.516270] CPU: 0 PID: 7378 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   52.524391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.533924] Call Trace:
[   52.536603]  dump_stack+0x142/0x197
[   52.540231]  should_fail.cold+0x10f/0x159
[   52.544466]  get_futex_key+0xb88/0x1400
[   52.548437]  ? futex_lock_pi_atomic+0x220/0x220
[   52.553105]  ? up_read+0x1a/0x40
[   52.556651]  futex_wake+0xd9/0x430
[   52.560194]  ? get_futex_key+0x1400/0x1400
[   52.564550]  ? lock_downgrade+0x740/0x740
[   52.568703]  do_futex+0x290/0x19e0
[   52.572375]  ? tty_ldisc_deref+0x35/0x40
[   52.576593]  ? tty_ioctl+0x485/0x1320
[   52.580391]  ? get_pid_task+0xbf/0x140
[   52.584529]  ? tty_vhangup+0x30/0x30
[   52.588243]  ? trace_hardirqs_on+0x10/0x10
[   52.592563]  ? futex_exit_release+0x70/0x70
[   52.597009]  ? __might_sleep+0x93/0xb0
[   52.600906]  ? tty_vhangup+0x30/0x30
[   52.604624]  ? do_vfs_ioctl+0xef/0x1060
[   52.608615]  ? selinux_file_mprotect+0x5d0/0x5d0
[   52.613373]  ? lock_downgrade+0x740/0x740
[   52.617524]  ? ioctl_preallocate+0x1c0/0x1c0
[   52.622070]  SyS_futex+0x215/0x310
[   52.625613]  ? do_futex+0x19e0/0x19e0
[   52.629408]  ? fput+0xd4/0x150
[   52.632595]  ? SyS_ioctl+0x67/0xc0
[   52.636130]  ? do_futex+0x19e0/0x19e0
[   52.640124]  do_syscall_64+0x1e8/0x640
[   52.644017]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   52.649002]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   52.654185] RIP: 0033:0x4469a9
[   52.657369] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   52.665597] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   52.673161] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   52.680424] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   52.688057] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   52.695328] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   52.702757] CPU: 1 PID: 7368 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   52.707768] FAULT_INJECTION: forcing a failure.
[   52.707768] name fail_futex, interval 1, probability 0, space 0, times 0
[   52.711048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.711051] Call Trace:
[   52.711067]  dump_stack+0x142/0x197
[   52.711078]  should_fail.cold+0x10f/0x159
[   52.711088]  get_futex_key+0xb88/0x1400
[   52.711097]  ? futex_lock_pi_atomic+0x220/0x220
[   52.711104]  ? up_read+0x1a/0x40
[   52.711115]  futex_wake+0xd9/0x430
[   52.725345] FAULT_INJECTION: forcing a failure.
[   52.725345] name fail_futex, interval 1, probability 0, space 0, times 0
[   52.732234]  ? get_futex_key+0x1400/0x1400
[   52.732243]  ? lock_downgrade+0x740/0x740
[   52.732252]  do_futex+0x290/0x19e0
[   52.732258]  ? tty_ldisc_deref+0x35/0x40
[   52.732265]  ? tty_ioctl+0x485/0x1320
[   52.732273]  ? get_pid_task+0xbf/0x140
[   52.732280]  ? tty_vhangup+0x30/0x30
[   52.732285]  ? trace_hardirqs_on+0x10/0x10
[   52.732295]  ? futex_exit_release+0x70/0x70
[   52.808053]  ? __might_sleep+0x93/0xb0
[   52.812109]  ? tty_vhangup+0x30/0x30
[   52.816213]  ? do_vfs_ioctl+0xef/0x1060
[   52.820408]  ? selinux_file_mprotect+0x5d0/0x5d0
[   52.825176]  ? lock_downgrade+0x740/0x740
[   52.829627]  ? ioctl_preallocate+0x1c0/0x1c0
[   52.834219]  SyS_futex+0x215/0x310
[   52.837757]  ? do_futex+0x19e0/0x19e0
[   52.841924]  ? fput+0xd4/0x150
[   52.845108]  ? SyS_ioctl+0x67/0xc0
[   52.850558]  ? do_futex+0x19e0/0x19e0
[   52.854355]  do_syscall_64+0x1e8/0x640
[   52.858237]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   52.863220]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   52.868405] RIP: 0033:0x4469a9
[   52.871792] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   52.879567] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   52.886994] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   52.894469] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
executing program
executing program
executing program
executing program
executing program
[   52.901898] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   52.909396] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   52.916871] CPU: 0 PID: 7390 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   52.924971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.934476] Call Trace:
[   52.937311]  dump_stack+0x142/0x197
[   52.940846] FAULT_INJECTION: forcing a failure.
[   52.940846] name fail_futex, interval 1, probability 0, space 0, times 0
[   52.941107]  should_fail.cold+0x10f/0x159
[   52.957020]  get_futex_key+0xb88/0x1400
[   52.961397]  ? futex_lock_pi_atomic+0x220/0x220
[   52.966157]  ? up_read+0x1a/0x40
[   52.968325] FAULT_INJECTION: forcing a failure.
[   52.968325] name fail_futex, interval 1, probability 0, space 0, times 0
[   52.969528]  futex_wake+0xd9/0x430
[   52.969538]  ? get_futex_key+0x1400/0x1400
[   52.969549]  ? lock_downgrade+0x740/0x740
[   52.993810]  do_futex+0x290/0x19e0
[   52.997551]  ? tty_ldisc_deref+0x35/0x40
[   53.001624]  ? tty_ioctl+0x485/0x1320
[   53.003910] FAULT_INJECTION: forcing a failure.
[   53.003910] name fail_futex, interval 1, probability 0, space 0, times 0
[   53.005516]  ? get_pid_task+0xbf/0x140
[   53.005525]  ? tty_vhangup+0x30/0x30
[   53.005538]  ? trace_hardirqs_on+0x10/0x10
[   53.029784]  ? futex_exit_release+0x70/0x70
[   53.034247]  ? __might_sleep+0x93/0xb0
[   53.038147]  ? tty_vhangup+0x30/0x30
[   53.041867]  ? do_vfs_ioctl+0xef/0x1060
[   53.045837]  ? selinux_file_mprotect+0x5d0/0x5d0
[   53.050815]  ? lock_downgrade+0x740/0x740
[   53.055531]  ? ioctl_preallocate+0x1c0/0x1c0
[   53.060275]  SyS_futex+0x215/0x310
[   53.064006]  ? do_futex+0x19e0/0x19e0
[   53.067993]  ? fput+0xd4/0x150
[   53.071185]  ? SyS_ioctl+0x67/0xc0
[   53.074853]  ? do_futex+0x19e0/0x19e0
[   53.078828]  do_syscall_64+0x1e8/0x640
[   53.082830]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   53.087968]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   53.093390] RIP: 0033:0x4469a9
[   53.096574] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   53.104625] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   53.111980] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   53.119504] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   53.126927] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   53.134501] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   53.141784] CPU: 1 PID: 7393 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   53.149950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.159563] Call Trace:
[   53.162273]  dump_stack+0x142/0x197
[   53.165921]  should_fail.cold+0x10f/0x159
[   53.170349]  get_futex_key+0xb88/0x1400
[   53.174453]  ? futex_lock_pi_atomic+0x220/0x220
[   53.179221]  ? up_read+0x1a/0x40
[   53.182720]  futex_wake+0xd9/0x430
[   53.186259]  ? get_futex_key+0x1400/0x1400
[   53.190920]  ? lock_downgrade+0x740/0x740
[   53.195318]  do_futex+0x290/0x19e0
[   53.198861]  ? tty_ldisc_deref+0x35/0x40
[   53.203010]  ? tty_ioctl+0x485/0x1320
[   53.206977]  ? get_pid_task+0xbf/0x140
[   53.211126]  ? tty_vhangup+0x30/0x30
[   53.214848]  ? trace_hardirqs_on+0x10/0x10
[   53.219290]  ? futex_exit_release+0x70/0x70
[   53.223855]  ? __might_sleep+0x93/0xb0
[   53.227747]  ? tty_vhangup+0x30/0x30
[   53.231549]  ? do_vfs_ioctl+0xef/0x1060
[   53.235583]  ? selinux_file_mprotect+0x5d0/0x5d0
[   53.240796]  ? lock_downgrade+0x740/0x740
[   53.245101]  ? ioctl_preallocate+0x1c0/0x1c0
[   53.249509]  SyS_futex+0x215/0x310
[   53.253228]  ? do_futex+0x19e0/0x19e0
[   53.257031]  ? fput+0xd4/0x150
[   53.260219]  ? SyS_ioctl+0x67/0xc0
[   53.263756]  ? do_futex+0x19e0/0x19e0
[   53.267708]  do_syscall_64+0x1e8/0x640
[   53.271698]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   53.276968]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   53.282286] RIP: 0033:0x4469a9
[   53.285643] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   53.293481] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   53.300879] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   53.308353] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   53.315779] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   53.323377] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   53.332042] CPU: 0 PID: 7388 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   53.340143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.350036] Call Trace:
[   53.352631]  dump_stack+0x142/0x197
[   53.356422]  should_fail.cold+0x10f/0x159
[   53.360933]  get_futex_key+0xb88/0x1400
[   53.365043]  ? futex_lock_pi_atomic+0x220/0x220
[   53.369801]  ? up_read+0x1a/0x40
[   53.373374]  futex_wake+0xd9/0x430
[   53.377235]  ? get_futex_key+0x1400/0x1400
[   53.381595]  ? lock_downgrade+0x740/0x740
[   53.386064]  do_futex+0x290/0x19e0
[   53.389769]  ? tty_ldisc_deref+0x35/0x40
[   53.393920]  ? tty_ioctl+0x485/0x1320
[   53.397882]  ? get_pid_task+0xbf/0x140
[   53.401871]  ? tty_vhangup+0x30/0x30
[   53.405694]  ? trace_hardirqs_on+0x10/0x10
[   53.410157]  ? futex_exit_release+0x70/0x70
[   53.414602]  ? __might_sleep+0x93/0xb0
[   53.418690]  ? tty_vhangup+0x30/0x30
[   53.422618]  ? do_vfs_ioctl+0xef/0x1060
[   53.426730]  ? selinux_file_mprotect+0x5d0/0x5d0
[   53.431729]  ? lock_downgrade+0x740/0x740
[   53.436029]  ? ioctl_preallocate+0x1c0/0x1c0
[   53.440528]  SyS_futex+0x215/0x310
[   53.444151]  ? do_futex+0x19e0/0x19e0
[   53.448168]  ? fput+0xd4/0x150
[   53.451594]  ? SyS_ioctl+0x67/0xc0
[   53.455538]  ? do_futex+0x19e0/0x19e0
[   53.459370]  do_syscall_64+0x1e8/0x640
[   53.463507]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   53.468720]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   53.474053] RIP: 0033:0x4469a9
[   53.477513] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   53.485538] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   53.492804] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   53.500380] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   53.507766] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   53.515191] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   53.522557] CPU: 1 PID: 7395 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   53.529657] FAULT_INJECTION: forcing a failure.
[   53.529657] name fail_futex, interval 1, probability 0, space 0, times 0
[   53.530740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.530743] Call Trace:
[   53.530780]  dump_stack+0x142/0x197
[   53.530795]  should_fail.cold+0x10f/0x159
[   53.544985] FAULT_INJECTION: forcing a failure.
[   53.544985] name fail_futex, interval 1, probability 0, space 0, times 0
[   53.552263]  get_futex_key+0xb88/0x1400
[   53.552272]  ? futex_lock_pi_atomic+0x220/0x220
[   53.552280]  ? up_read+0x1a/0x40
[   53.552290]  futex_wake+0xd9/0x430
[   53.580385] FAULT_INJECTION: forcing a failure.
[   53.580385] name fail_futex, interval 1, probability 0, space 0, times 0
[   53.583514]  ? get_futex_key+0x1400/0x1400
[   53.583525]  ? lock_downgrade+0x740/0x740
[   53.610550]  do_futex+0x290/0x19e0
[   53.614091]  ? tty_ldisc_deref+0x35/0x40
[   53.618147]  ? tty_ioctl+0x485/0x1320
[   53.622109]  ? get_pid_task+0xbf/0x140
[   53.625997]  ? tty_vhangup+0x30/0x30
[   53.630052]  ? trace_hardirqs_on+0x10/0x10
[   53.634403]  ? futex_exit_release+0x70/0x70
[   53.638721]  ? __might_sleep+0x93/0xb0
[   53.642885]  ? tty_vhangup+0x30/0x30
[   53.646683]  ? do_vfs_ioctl+0xef/0x1060
[   53.650658]  ? selinux_file_mprotect+0x5d0/0x5d0
[   53.655896]  ? lock_downgrade+0x740/0x740
[   53.660233]  ? ioctl_preallocate+0x1c0/0x1c0
[   53.664851]  SyS_futex+0x215/0x310
[   53.668397]  ? do_futex+0x19e0/0x19e0
[   53.672286]  ? fput+0xd4/0x150
[   53.675598]  ? SyS_ioctl+0x67/0xc0
[   53.679232]  ? do_futex+0x19e0/0x19e0
[   53.683092]  do_syscall_64+0x1e8/0x640
[   53.687258]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   53.692315]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   53.697781] RIP: 0033:0x4469a9
executing program
executing program
executing program
[   53.700964] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   53.708971] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   53.716277] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   53.723716] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   53.730987] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   53.738380] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   53.745816] CPU: 0 PID: 7401 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   53.753828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.763289] Call Trace:
[   53.766031]  dump_stack+0x142/0x197
[   53.769757]  should_fail.cold+0x10f/0x159
[   53.773929]  get_futex_key+0xb88/0x1400
[   53.777903]  ? futex_lock_pi_atomic+0x220/0x220
[   53.782969]  ? up_read+0x1a/0x40
[   53.786384]  futex_wake+0xd9/0x430
[   53.790021]  ? get_futex_key+0x1400/0x1400
[   53.794422]  ? lock_downgrade+0x740/0x740
[   53.798669]  do_futex+0x290/0x19e0
[   53.802406]  ? tty_ldisc_deref+0x35/0x40
[   53.806644]  ? tty_ioctl+0x485/0x1320
[   53.810439]  ? get_pid_task+0xbf/0x140
[   53.814322]  ? tty_vhangup+0x30/0x30
[   53.818188]  ? trace_hardirqs_on+0x10/0x10
[   53.822571]  ? futex_exit_release+0x70/0x70
[   53.826892]  ? __might_sleep+0x93/0xb0
[   53.830995]  ? tty_vhangup+0x30/0x30
[   53.834723]  ? do_vfs_ioctl+0xef/0x1060
[   53.838698]  ? selinux_file_mprotect+0x5d0/0x5d0
[   53.843733]  ? lock_downgrade+0x740/0x740
[   53.847888]  ? ioctl_preallocate+0x1c0/0x1c0
[   53.852357]  SyS_futex+0x215/0x310
executing program
[   53.855897]  ? do_futex+0x19e0/0x19e0
[   53.859702]  ? fput+0xd4/0x150
[   53.862908]  ? SyS_ioctl+0x67/0xc0
[   53.866685]  ? do_futex+0x19e0/0x19e0
[   53.870740]  do_syscall_64+0x1e8/0x640
[   53.874721]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   53.879720]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   53.885106] RIP: 0033:0x4469a9
[   53.888451] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   53.894986] FAULT_INJECTION: forcing a failure.
[   53.894986] name fail_futex, interval 1, probability 0, space 0, times 0
[   53.896158] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   53.896163] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   53.896167] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   53.896170] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   53.896178] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   53.945603] CPU: 1 PID: 7396 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   53.953893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.963487] Call Trace:
[   53.966084]  dump_stack+0x142/0x197
[   53.969937]  should_fail.cold+0x10f/0x159
[   53.974108]  get_futex_key+0xb88/0x1400
[   53.978167]  ? futex_lock_pi_atomic+0x220/0x220
[   53.983207]  ? up_read+0x1a/0x40
[   53.986698]  futex_wake+0xd9/0x430
[   53.990407]  ? get_futex_key+0x1400/0x1400
[   53.994849]  ? lock_downgrade+0x740/0x740
[   53.999091]  do_futex+0x290/0x19e0
[   54.002768]  ? tty_ldisc_deref+0x35/0x40
[   54.006918]  ? tty_ioctl+0x485/0x1320
[   54.010729]  ? get_pid_task+0xbf/0x140
[   54.014620]  ? tty_vhangup+0x30/0x30
[   54.018353]  ? trace_hardirqs_on+0x10/0x10
[   54.022595]  ? futex_exit_release+0x70/0x70
[   54.026914]  ? __might_sleep+0x93/0xb0
[   54.030801]  ? tty_vhangup+0x30/0x30
[   54.034861]  ? do_vfs_ioctl+0xef/0x1060
[   54.038917]  ? selinux_file_mprotect+0x5d0/0x5d0
[   54.043818]  ? lock_downgrade+0x740/0x740
[   54.048059]  ? ioctl_preallocate+0x1c0/0x1c0
[   54.052481]  SyS_futex+0x215/0x310
[   54.056081]  ? do_futex+0x19e0/0x19e0
[   54.060154]  ? fput+0xd4/0x150
[   54.063511]  ? SyS_ioctl+0x67/0xc0
[   54.067142]  ? do_futex+0x19e0/0x19e0
[   54.071127]  do_syscall_64+0x1e8/0x640
[   54.075160]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   54.080004]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   54.085414] RIP: 0033:0x4469a9
[   54.088740] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   54.096618] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   54.104078] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   54.111477] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   54.119096] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
[   54.126366] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   54.133644] CPU: 0 PID: 7402 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   54.141820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.151677] Call Trace:
[   54.154266]  dump_stack+0x142/0x197
[   54.157906]  should_fail.cold+0x10f/0x159
[   54.162250]  get_futex_key+0xb88/0x1400
[   54.166307]  ? futex_lock_pi_atomic+0x220/0x220
[   54.170978]  ? up_read+0x1a/0x40
[   54.174341]  futex_wake+0xd9/0x430
[   54.177892]  ? get_futex_key+0x1400/0x1400
[   54.182289]  ? lock_downgrade+0x740/0x740
[   54.186437]  do_futex+0x290/0x19e0
[   54.190188]  ? tty_ldisc_deref+0x35/0x40
[   54.194412]  ? tty_ioctl+0x485/0x1320
[   54.198219]  ? get_pid_task+0xbf/0x140
[   54.202232]  ? tty_vhangup+0x30/0x30
executing program
[   54.205949]  ? trace_hardirqs_on+0x10/0x10
[   54.210187]  ? futex_exit_release+0x70/0x70
[   54.214517]  ? __might_sleep+0x93/0xb0
[   54.218574]  ? tty_vhangup+0x30/0x30
[   54.222285]  ? do_vfs_ioctl+0xef/0x1060
[   54.226362]  ? selinux_file_mprotect+0x5d0/0x5d0
[   54.231143]  ? lock_downgrade+0x740/0x740
[   54.235375]  ? ioctl_preallocate+0x1c0/0x1c0
[   54.239788]  SyS_futex+0x215/0x310
[   54.243318]  ? do_futex+0x19e0/0x19e0
[   54.247119]  ? fput+0xd4/0x150
[   54.250305]  ? SyS_ioctl+0x67/0xc0
[   54.253847]  ? do_futex+0x19e0/0x19e0
[   54.257643]  do_syscall_64+0x1e8/0x640
[   54.261524]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   54.266489]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   54.271810] RIP: 0033:0x4469a9
[   54.275013] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   54.282738] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9
[   54.286150] FAULT_INJECTION: forcing a failure.
[   54.286150] name fail_futex, interval 1, probability 0, space 0, times 0
[   54.290010] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c
[   54.290014] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   54.290018] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c
[   54.290021] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000
[   54.290608] CPU: 0 PID: 7403 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   54.338439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.347790] Call Trace:
[   54.350376]  dump_stack+0x142/0x197
[   54.354037]  should_fail.cold+0x10f/0x159
[   54.358177]  get_futex_key+0xb88/0x1400
[   54.362151]  ? futex_lock_pi_atomic+0x220/0x220
[   54.366814]  ? up_read+0x1a/0x40
[   54.370181]  futex_wake+0xd9/0x430
[   54.373716]  ? get_futex_key+0x1400/0x1400
[   54.377948]  ? lock_downgrade+0x740/0x740
[   54.382118]  do_futex+0x290/0x19e0
[   54.385649]  ? tty_ldisc_deref+0x35/0x40
[   54.389696]  ? tty_ioctl+0x485/0x1320
[   54.393478]  ? get_pid_task+0xbf/0x140
[   54.397421]  ? tty_vhangup+0x30/0x30
[   54.401124]  ? trace_hardirqs_on+0x10/0x10
[   54.405351]  ? futex_exit_release+0x70/0x70
[   54.409656]  ? __might_sleep+0x93/0xb0
[   54.413539]  ? tty_vhangup+0x30/0x30
[   54.417249]  ? do_vfs_ioctl+0xef/0x1060
[   54.421214]  ? selinux_file_mprotect+0x5d0/0x5d0
[   54.425954]  ? lock_downgrade+0x740/0x740
[   54.430098]  ? ioctl_preallocate+0x1c0/0x1c0
[   54.434504]  SyS_futex+0x215/0x310
[   54.438031]  ? do_futex+0x19e0/0x19e0
[   54.441813]  ? fput+0xd4/0x150
[   54.444989]  ? SyS_ioctl+0x67/0xc0
[   54.448519]  ? do_futex+0x19e0/0x19e0
[   54.452307]  do_syscall_64+0x1e8/0x640
[   54.456274]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   54.461117]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   54.466297] RIP: 0033:0x4469a9
[   54.469556] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   54.477253] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9
[   54.484513] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c
[   54.491794] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   54.499054] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c
executing program
executing program
[   54.506327] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000
[   54.513600] CPU: 1 PID: 7407 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0
[   54.521573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.522431] FAULT_INJECTION: forcing a failure.
[   54.522431] name fail_futex, interval 1, probability 0, space 0, times 0
[   54.530925] Call Trace:
[   54.530943]  dump_stack+0x142/0x197
[   54.530955]  should_fail.cold+0x10f/0x159
[   54.530964]  get_futex_key+0xb88/0x1400