[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.110' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.954453] FAULT_INJECTION: forcing a failure. [ 32.954453] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 32.967651] CPU: 0 PID: 7982 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 32.975506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 32.984839] Call Trace: [ 32.987404] dump_stack+0x1b2/0x281 [ 32.991005] should_fail.cold+0x10a/0x149 [ 32.995126] __alloc_pages_nodemask+0x21e/0x2900 [ 32.999857] ? trace_hardirqs_on+0x10/0x10 [ 33.004071] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 33.009930] ? unwind_next_frame+0xe54/0x17d0 [ 33.014396] ? __save_stack_trace+0x63/0x160 [ 33.018787] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 33.023605] ? is_bpf_text_address+0x91/0x150 [ 33.028076] ? is_bpf_text_address+0xb8/0x150 [ 33.032545] ? kernel_text_address+0xbd/0xf0 [ 33.036932] ? lock_downgrade+0x740/0x740 [ 33.041056] alloc_pages_current+0x155/0x260 [ 33.045438] depot_save_stack+0x3ae/0x3f0 [ 33.049565] kasan_kmalloc+0x139/0x160 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 33.053430] ? kasan_kmalloc+0xeb/0x160 [ 33.057376] ? __kmalloc+0x15a/0x400 [ 33.061061] ? tty_buffer_alloc+0xc0/0x270 [ 33.065268] ? __tty_buffer_request_room+0x12c/0x290 [ 33.070351] ? tty_insert_flip_string_fixed_flag+0x8b/0x210 [ 33.076033] ? tty_insert_flip_string_and_push_buffer+0x3e/0x160 [ 33.082154] ? pty_write+0xc3/0xf0 [ 33.085683] ? tty_put_char+0xfe/0x120 [ 33.089556] ? __process_echoes+0x48c/0x8c0 [ 33.093857] ? process_echoes+0xe9/0x1a0 [ 33.097891] ? n_tty_set_termios+0x60f/0xcc0 [ 33.102271] ? tty_set_termios+0x5d5/0x810 [ 33.106475] ? set_termios.part.0+0x244/0x3f0 [ 33.110946] ? tty_mode_ioctl+0x866/0xa80 [ 33.115074] ? n_tty_ioctl_helper+0x44/0x350 [ 33.119456] ? n_tty_ioctl+0x47/0x2e0 [ 33.123226] ? tty_ioctl+0x5af/0x1430 [ 33.126996] ? do_vfs_ioctl+0x75a/0xff0 [ 33.130941] ? SyS_ioctl+0x7f/0xb0 [ 33.134456] ? do_syscall_64+0x1d5/0x640 [ 33.138493] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 33.143833] ? __lock_acquire+0x5fc/0x3f20 [ 33.148046] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 33.153037] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 33.158115] ? trace_hardirqs_on+0x10/0x10 [ 33.162528] ? should_fail+0x327/0x3f0 [ 33.166428] ? check_preemption_disabled+0x35/0x240 [ 33.171422] __kmalloc+0x15a/0x400 [ 33.174935] ? tty_buffer_alloc+0xc0/0x270 [ 33.179143] tty_buffer_alloc+0xc0/0x270 [ 33.183179] __tty_buffer_request_room+0x12c/0x290 [ 33.188084] tty_insert_flip_string_fixed_flag+0x8b/0x210 [ 33.193594] tty_insert_flip_string_and_push_buffer+0x3e/0x160 [ 33.199536] pty_write+0xc3/0xf0 [ 33.202875] tty_put_char+0xfe/0x120 [ 33.206562] ? dev_match_devt+0x80/0x80 [ 33.210517] ? pty_write_room+0xa9/0xd0 [ 33.214461] ? ptmx_open+0x300/0x300 [ 33.218164] __process_echoes+0x48c/0x8c0 [ 33.222297] process_echoes+0xe9/0x1a0 [ 33.226161] n_tty_set_termios+0x60f/0xcc0 [ 33.230374] ? process_echoes+0x1a0/0x1a0 [ 33.234501] tty_set_termios+0x5d5/0x810 [ 33.238552] ? tty_wait_until_sent+0x470/0x470 [ 33.243127] set_termios.part.0+0x244/0x3f0 [ 33.247423] ? set_termiox+0x280/0x280 [ 33.251295] tty_mode_ioctl+0x866/0xa80 [ 33.255250] ? get_termio+0x240/0x240 [ 33.259033] ? __ldsem_down_read_nested+0x91/0x610 [ 33.263937] ? __ldsem_down_read_nested+0xb0/0x610 [ 33.268852] ? _kstrtoull+0x1f2/0x450 [ 33.272635] ? __ldsem_down_write_nested+0x700/0x700 [ 33.277727] n_tty_ioctl_helper+0x44/0x350 [ 33.281946] n_tty_ioctl+0x47/0x2e0 [ 33.285547] tty_ioctl+0x5af/0x1430 [ 33.289168] ? n_tty_poll+0x7d0/0x7d0 [ 33.292949] ? tty_fasync+0x2c0/0x2c0 [ 33.296732] ? proc_fail_nth_write+0x7b/0x180 [ 33.301205] ? trace_hardirqs_on+0x10/0x10 [ 33.305439] ? fsnotify+0x974/0x11b0 [ 33.309128] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 33.314032] ? __handle_mm_fault+0x80f/0x4620 [ 33.318501] ? SyS_write+0x1b7/0x210 [ 33.322190] ? tty_fasync+0x2c0/0x2c0 [ 33.325962] do_vfs_ioctl+0x75a/0xff0 [ 33.329756] ? lock_acquire+0x170/0x3f0 [ 33.333717] ? ioctl_preallocate+0x1a0/0x1a0 [ 33.338109] ? __fget+0x265/0x3e0 [ 33.341543] ? do_vfs_ioctl+0xff0/0xff0 [ 33.345503] ? security_file_ioctl+0x83/0xb0 [ 33.349892] SyS_ioctl+0x7f/0xb0 [ 33.353235] ? do_vfs_ioctl+0xff0/0xff0 [ 33.357191] do_syscall_64+0x1d5/0x640 [ 33.361092] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 33.366255] RIP: 0033:0x7f4f3504c0d9 [ 33.369939] RSP: 002b:00007f4f34fd41e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.377615] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 33.384857] RDX: 0000000020000000 RSI: 0000000000005402 RDI: 0000000000000003 [ 33.392113] RBP: 00007f4f34fd41f0 R08: 0000000000000001 R09: 0000000000000032 [ 33.399488] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 33.406733] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 33.413991] [ 33.413993] ====================================================== [ 33.413995] WARNING: possible circular locking dependency detected [ 33.413996] 4.14.302-syzkaller #0 Not tainted [ 33.413998] ------------------------------------------------------ [ 33.414000] syz-executor540/7982 is trying to acquire lock: [ 33.414001] (console_owner){....}, at: [] console_unlock+0x307/0xf20 [ 33.414005] [ 33.414006] but task is already holding lock: [ 33.414007] (&(&port->lock)->rlock){-.-.}, at: [] tty_insert_flip_string_and_push_buffer+0x2b/0x160 [ 33.414011] [ 33.414013] which lock already depends on the new lock. [ 33.414014] [ 33.414014] [ 33.414016] the existing dependency chain (in reverse order) is: [ 33.414017] [ 33.414017] -> #2 (&(&port->lock)->rlock){-.-.}: [ 33.414022] _raw_spin_lock_irqsave+0x8c/0xc0 [ 33.414023] tty_port_tty_get+0x1d/0x80 [ 33.414024] tty_port_default_wakeup+0x11/0x40 [ 33.414026] serial8250_tx_chars+0x3fe/0xc70 [ 33.414027] serial8250_handle_irq.part.0+0x2c7/0x390 [ 33.414029] serial8250_default_handle_irq+0x8a/0x1f0 [ 33.414030] serial8250_interrupt+0xf3/0x210 [ 33.414032] __handle_irq_event_percpu+0xee/0x7f0 [ 33.414033] handle_irq_event+0xed/0x240 [ 33.414034] handle_edge_irq+0x224/0xc40 [ 33.414035] handle_irq+0x35/0x50 [ 33.414036] do_IRQ+0x93/0x1d0 [ 33.414037] ret_from_intr+0x0/0x1e [ 33.414039] native_safe_halt+0xe/0x10 [ 33.414040] default_idle+0x47/0x370 [ 33.414041] do_idle+0x250/0x3c0 [ 33.414042] cpu_startup_entry+0x14/0x20 [ 33.414043] start_kernel+0x743/0x763 [ 33.414045] secondary_startup_64+0xa5/0xb0 [ 33.414045] [ 33.414046] -> #1 (&port_lock_key){-.-.}: [ 33.414050] _raw_spin_lock_irqsave+0x8c/0xc0 [ 33.414052] serial8250_console_write+0x8cb/0xb40 [ 33.414053] console_unlock+0x99d/0xf20 [ 33.414054] vprintk_emit+0x224/0x620 [ 33.414055] vprintk_func+0x58/0x160 [ 33.414056] printk+0x9e/0xbc [ 33.414057] register_console+0x6f4/0xad0 [ 33.414059] univ8250_console_init+0x2f/0x3a [ 33.414060] console_init+0x46/0x53 [ 33.414061] start_kernel+0x521/0x763 [ 33.414062] secondary_startup_64+0xa5/0xb0 [ 33.414063] [ 33.414064] -> #0 (console_owner){....}: [ 33.414068] lock_acquire+0x170/0x3f0 [ 33.414069] console_unlock+0x36f/0xf20 [ 33.414070] vprintk_emit+0x224/0x620 [ 33.414072] vprintk_func+0x58/0x160 [ 33.414073] printk+0x9e/0xbc [ 33.414074] should_fail.cold+0xdf/0x149 [ 33.414076] __alloc_pages_nodemask+0x21e/0x2900 [ 33.414077] alloc_pages_current+0x155/0x260 [ 33.414078] depot_save_stack+0x3ae/0x3f0 [ 33.414079] kasan_kmalloc+0x139/0x160 [ 33.414081] __kmalloc+0x15a/0x400 [ 33.414082] tty_buffer_alloc+0xc0/0x270 [ 33.414084] __tty_buffer_request_room+0x12c/0x290 [ 33.414085] tty_insert_flip_string_fixed_flag+0x8b/0x210 [ 33.414087] tty_insert_flip_string_and_push_buffer+0x3e/0x160 [ 33.414088] pty_write+0xc3/0xf0 [ 33.414090] tty_put_char+0xfe/0x120 [ 33.414091] __process_echoes+0x48c/0x8c0 [ 33.414092] process_echoes+0xe9/0x1a0 [ 33.414093] n_tty_set_termios+0x60f/0xcc0 [ 33.414095] tty_set_termios+0x5d5/0x810 [ 33.414096] set_termios.part.0+0x244/0x3f0 [ 33.414097] tty_mode_ioctl+0x866/0xa80 [ 33.414098] n_tty_ioctl_helper+0x44/0x350 [ 33.414100] n_tty_ioctl+0x47/0x2e0 [ 33.414101] tty_ioctl+0x5af/0x1430 [ 33.414102] do_vfs_ioctl+0x75a/0xff0 [ 33.414103] SyS_ioctl+0x7f/0xb0 [ 33.414104] do_syscall_64+0x1d5/0x640 [ 33.414106] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 33.414106] [ 33.414108] other info that might help us debug this: [ 33.414109] [ 33.414109] Chain exists of: [ 33.414110] console_owner --> &port_lock_key --> &(&port->lock)->rlock [ 33.414115] [ 33.414117] Possible unsafe locking scenario: [ 33.414117] [ 33.414119] CPU0 CPU1 [ 33.414120] ---- ---- [ 33.414120] lock(&(&port->lock)->rlock); [ 33.414123] lock(&port_lock_key); [ 33.414126] lock(&(&port->lock)->rlock); [ 33.414129] lock(console_owner); [ 33.414131] [ 33.414132] *** DEADLOCK *** [ 33.414132] [ 33.414134] 6 locks held by syz-executor540/7982: [ 33.414134] #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x22/0x80 [ 33.414139] #1: (&o_tty->termios_rwsem/1){++++}, at: [] tty_set_termios+0xd3/0x810 [ 33.414144] #2: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref+0x1b/0x80 [ 33.414148] #3: (&ldata->output_lock){+.+.}, at: [] process_echoes+0x9f/0x1a0 [ 33.414153] #4: (&(&port->lock)->rlock){-.-.}, at: [] tty_insert_flip_string_and_push_buffer+0x2b/0x160 [ 33.414158] #5: (console_lock){+.+.}, at: [] vprintk_func+0x58/0x160 [ 33.414162] [ 33.414163] stack backtrace: [ 33.414165] CPU: 0 PID: 7982 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 33.414168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 33.414168] Call Trace: [ 33.414170] dump_stack+0x1b2/0x281 [ 33.414171] print_circular_bug.constprop.0.cold+0x2d7/0x41e [ 33.414172] __lock_acquire+0x2e0e/0x3f20 [ 33.414174] ? trace_hardirqs_on+0x10/0x10 [ 33.414175] ? snprintf+0xd0/0xd0 [ 33.414176] ? console_unlock+0x34a/0xf20 [ 33.414177] lock_acquire+0x170/0x3f0 [ 33.414178] ? console_unlock+0x307/0xf20 [ 33.414180] console_unlock+0x36f/0xf20 [ 33.414181] ? console_unlock+0x307/0xf20 [ 33.414182] vprintk_emit+0x224/0x620 [ 33.414183] vprintk_func+0x58/0x160 [ 33.414184] printk+0x9e/0xbc [ 33.414185] ? log_store.cold+0x16/0x16 [ 33.414186] ? ___ratelimit+0x2b5/0x510 [ 33.414188] should_fail.cold+0xdf/0x149 [ 33.414189] __alloc_pages_nodemask+0x21e/0x2900 [ 33.414190] ? trace_hardirqs_on+0x10/0x10 [ 33.414192] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 33.414193] ? unwind_next_frame+0xe54/0x17d0 [ 33.414194] ? __save_stack_trace+0x63/0x160 [ 33.414196] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 33.414197] ? is_bpf_text_address+0x91/0x150 [ 33.414198] ? is_bpf_text_address+0xb8/0x150 [ 33.414200] ? kernel_text_address+0xbd/0xf0 [ 33.414201] ? lock_downgrade+0x740/0x740 [ 33.414202] alloc_pages_current+0x155/0x260 [ 33.414203] depot_save_stack+0x3ae/0x3f0 [ 33.414205] kasan_kmalloc+0x139/0x160 [ 33.414206] ? kasan_kmalloc+0xeb/0x160 [ 33.414207] ? __kmalloc+0x15a/0x400 [ 33.414208] ? tty_buffer_alloc+0xc0/0x270 [ 33.414210] ? __tty_buffer_request_room+0x12c/0x290 [ 33.414211] ? tty_insert_flip_string_fixed_flag+0x8b/0x210 [ 33.414213] ? tty_insert_flip_string_and_push_buffer+0x3e/0x160 [ 33.414214] ? pty_write+0xc3/0xf0 [ 33.414215] ? tty_put_char+0xfe/0x120 [ 33.414216] ? __process_echoes+0x48c/0x8c0 [ 33.414217] ? process_echoes+0xe9/0x1a0 [ 33.414219] ? n_tty_set_termios+0x60f/0xcc0 [ 33.414220] ? tty_set_termios+0x5d5/0x810 [ 33.414221] ? set_termios.part.0+0x244/0x3f0 [ 33.414223] ? tty_mode_ioctl+0x866/0xa80 [ 33.414224] ? n_tty_ioctl_helper+0x44/0x350 [ 33.414225] ? n_tty_ioctl+0x47/0x2e0 [ 33.414226] ? tty_ioctl+0x5af/0x1430 [ 33.414227] ? do_vfs_ioctl+0x75a/0xff0 [ 33.414228] ? SyS_ioctl+0x7f/0xb0 [ 33.414230] ? do_syscall_64+0x1d5/0x640 [ 33.414231] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 33.414232] ? __lock_acquire+0x5fc/0x3f20 [ 33.414234] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 33.414235] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 33.414236] ? trace_hardirqs_on+0x10/0x10 [ 33.414238] ? should_fail+0x327/0x3f0 [ 33.414239] ? check_preemption_disabled+0x35/0x240 [ 33.414240] __kmalloc+0x15a/0x400 [ 33.414241] ? tty_buffer_alloc+0xc0/0x270 [ 33.414243] tty_buffer_alloc+0xc0/0x270 [ 33.414244] __tty_buffer_request_room+0x12c/0x290 [ 33.414246] tty_insert_flip_string_fixed_flag+0x8b/0x210 [ 33.414247] tty_insert_flip_string_and_push_buffer+0x3e/0x160 [ 33.414248] pty_write+0xc3/0xf0 [ 33.414249] tty_put_char+0xfe/0x120 [ 33.414251] ? dev_match_devt+0x80/0x80 [ 33.414252] ? pty_write_room+0xa9/0xd0 [ 33.414253] ? ptmx_open+0x300/0x300 [ 33.414254] __process_echoes+0x48c/0x8c0 [ 33.414255] process_echoes+0xe9/0x1a0 [ 33.414257] n_tty_set_termios+0x60f/0xcc0 [ 33.414258] ? process_echoes+0x1a0/0x1a0 [ 33.414259] tty_set_termios+0x5d5/0x810 [ 33.414260] ? tty_wait_until_sent+0x470/0x470 [ 33.414262] set_termios.part.0+0x244/0x3f0 [ 33.414263] ? set_termiox+0x280/0x280 [ 33.414264] tty_mode_ioctl+0x866/0xa80 [ 33.414265] ? get_termio+0x240/0x240 [ 33.414267] ? __ldsem_down_read_nested+0x91/0x610 [ 33.414268] ? __ldsem_down_read_nested+0xb0/0x610 [ 33.414269] ? _kstrtoull+0x1f2/0x450 [ 33.414271] ? __ldsem_down_write_nested+0x700/0x700 [ 33.414272] n_tty_ioctl_helper+0x44/0x350 [ 33.414273] n_tty_ioctl+0x47/0x2e0 [ 33.414274] tty_ioctl+0x5af/0x1430 [ 33.414275] ? n_tty_poll+0x7d0/0x7d0 [ 33.414276] ? tty_fasync+0x2c0/0x2c0 [ 33.414278] ? proc_fail_nth_write+0x7b/0x180 [ 33.414279] ? trace_hardirqs_on+0x10/0x10 [ 33.414280] ? fsnotify+0x974/0x11b0 [ 33.414282] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 33.414283] ? __handle_mm_fault+0x80f/0x4620 [ 33.414284] ? SyS_write+0x1b7/0x210 [ 33.414285] ? tty_fasync+0x2c0/0x2c0 [ 33.414286] do_vfs_ioctl+0x75a/0xff0 [ 33.414287] ? lock_acquire+0x170/0x3f0 [ 33.414289] ? ioctl_preallocate+0x1a0/0x1a0 [ 33.414290] ? __fget+0x265/0x3e0 [ 33.414291] ? do_vfs_ioctl+0xff0/0xff0 [ 33.414300] ? security_file_ioctl+0x83/0xb0 [ 33.414301] SyS_ioctl+0x7f/0xb0 [ 33.414302] ? do_vfs_ioctl+0xff0/0xff0 [ 33.414303] do_syscall_64+0x1d5/0x640 [ 33.414305] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 executing program [ 33.414306] RIP: 0033:0x7f4f3504c0d9 [ 33.414307] RSP: 002b:00007f4f34fd41e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.414311] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 33.414312] RDX: 0000000020000000 RSI: 0000000000005402 RDI: 0000000000000003 [ 33.414314] RBP: 00007f4f34fd41f0 R08: 0000000000000001 R09: 0000000000000032 [ 33.414316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 33.414318] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 34.469175] FAULT_INJECTION: forcing a failure. [ 34.469175] name fail_futex, interval 1, probability 0, space 0, times 1 [ 34.480978] CPU: 0 PID: 7985 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 34.488845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 34.498178] Call Trace: [ 34.500752] dump_stack+0x1b2/0x281 [ 34.504359] should_fail.cold+0x10a/0x149 [ 34.508479] get_futex_key+0x82a/0x11b0 [ 34.512426] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 34.517068] ? get_termio+0x240/0x240 [ 34.520841] futex_wake+0xc6/0x3c0 [ 34.524358] ? get_futex_key+0x11b0/0x11b0 [ 34.528566] ? n_tty_ioctl_helper+0x4c/0x350 [ 34.532950] do_futex+0x235/0x1570 [ 34.536462] ? tty_fasync+0x2c0/0x2c0 [ 34.540233] ? proc_fail_nth_write+0x7b/0x180 [ 34.544701] ? trace_hardirqs_on+0x10/0x10 [ 34.548909] ? futex_exit_release+0x220/0x220 [ 34.553377] ? fsnotify+0x974/0x11b0 [ 34.557067] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 34.562074] ? __handle_mm_fault+0x80f/0x4620 [ 34.566889] ? tty_fasync+0x2c0/0x2c0 [ 34.570664] ? do_vfs_ioctl+0xe2/0xff0 [ 34.574524] ? lock_acquire+0x170/0x3f0 [ 34.578471] ? ioctl_preallocate+0x1a0/0x1a0 [ 34.582923] SyS_futex+0x1da/0x290 [ 34.586447] ? do_futex+0x1570/0x1570 [ 34.590222] ? security_file_ioctl+0x83/0xb0 [ 34.594599] ? fput_many+0xe/0x140 [ 34.598108] ? SyS_ioctl+0x5c/0xb0 [ 34.601620] ? do_futex+0x1570/0x1570 [ 34.605392] do_syscall_64+0x1d5/0x640 [ 34.609254] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 34.614415] RIP: 0033:0x7f4f3504c0d9 [ 34.618100] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 34.625780] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 34.633041] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 34.640283] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 34.647527] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 34.654767] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.828253] FAULT_INJECTION: forcing a failure. [ 34.828253] name fail_futex, interval 1, probability 0, space 0, times 0 [ 34.839673] CPU: 0 PID: 7988 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 34.847534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 34.856861] Call Trace: [ 34.859425] dump_stack+0x1b2/0x281 [ 34.863336] should_fail.cold+0x10a/0x149 [ 34.867551] ? trace_hardirqs_on+0x10/0x10 [ 34.871772] get_futex_key+0x82a/0x11b0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 34.875726] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 34.880382] ? check_preemption_disabled+0x35/0x240 [ 34.885375] futex_wait_setup+0xb3/0x260 [ 34.889409] ? futex_wake+0x3c0/0x3c0 [ 34.893182] ? do_raw_spin_unlock+0x164/0x220 [ 34.897649] futex_wait+0x199/0x5a0 [ 34.901248] ? futex_wait_setup+0x260/0x260 [ 34.905581] ? lock_downgrade+0x740/0x740 [ 34.909703] ? wake_up_q+0x82/0xd0 [ 34.913228] ? drop_futex_key_refs+0x2e/0xa0 [ 34.917609] ? futex_wake+0x116/0x3c0 [ 34.921458] do_futex+0x1d8/0x1570 [ 34.924990] ? tty_fasync+0x2c0/0x2c0 [ 34.928772] ? proc_fail_nth_write+0x7b/0x180 [ 34.933244] ? trace_hardirqs_on+0x10/0x10 [ 34.937459] ? futex_exit_release+0x220/0x220 [ 34.941929] ? fsnotify+0x974/0x11b0 [ 34.945624] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 34.950530] ? __handle_mm_fault+0x80f/0x4620 [ 34.955010] ? tty_fasync+0x2c0/0x2c0 [ 34.958791] ? do_vfs_ioctl+0xe2/0xff0 [ 34.962663] ? lock_acquire+0x170/0x3f0 [ 34.966629] ? ioctl_preallocate+0x1a0/0x1a0 [ 34.971027] SyS_futex+0x1da/0x290 [ 34.974556] ? do_futex+0x1570/0x1570 executing program [ 34.978343] ? security_file_ioctl+0x83/0xb0 [ 34.982730] ? fput_many+0xe/0x140 [ 34.986255] ? SyS_ioctl+0x5c/0xb0 [ 34.989771] ? do_futex+0x1570/0x1570 [ 34.993546] do_syscall_64+0x1d5/0x640 [ 34.997413] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 35.002576] RIP: 0033:0x7f4f3504c0d9 [ 35.006265] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 35.014081] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 35.021329] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 [ 35.028573] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 35.035816] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 35.043059] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 35.108891] FAULT_INJECTION: forcing a failure. [ 35.108891] name fail_futex, interval 1, probability 0, space 0, times 0 [ 35.120280] CPU: 1 PID: 7991 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 35.128134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 35.137566] Call Trace: [ 35.140136] dump_stack+0x1b2/0x281 [ 35.143737] should_fail.cold+0x10a/0x149 [ 35.147863] get_futex_key+0x82a/0x11b0 [ 35.151815] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 35.156461] ? get_termio+0x240/0x240 [ 35.160238] futex_wake+0xc6/0x3c0 [ 35.164102] ? get_futex_key+0x11b0/0x11b0 [ 35.168312] ? n_tty_ioctl_helper+0x4c/0x350 [ 35.172698] do_futex+0x235/0x1570 [ 35.176306] ? tty_fasync+0x2c0/0x2c0 [ 35.180082] ? proc_fail_nth_write+0x7b/0x180 [ 35.184552] ? trace_hardirqs_on+0x10/0x10 [ 35.188777] ? futex_exit_release+0x220/0x220 [ 35.193247] ? fsnotify+0x974/0x11b0 [ 35.196935] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 35.201842] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 35.206321] ? tty_fasync+0x2c0/0x2c0 [ 35.210100] ? do_vfs_ioctl+0xe2/0xff0 [ 35.213969] ? lock_acquire+0x170/0x3f0 [ 35.217929] ? ioctl_preallocate+0x1a0/0x1a0 [ 35.222318] SyS_futex+0x1da/0x290 [ 35.225851] ? do_futex+0x1570/0x1570 [ 35.229637] ? security_file_ioctl+0x83/0xb0 [ 35.234019] ? fput_many+0xe/0x140 [ 35.237530] ? SyS_ioctl+0x5c/0xb0 [ 35.241042] ? do_futex+0x1570/0x1570 [ 35.244820] do_syscall_64+0x1d5/0x640 [ 35.248683] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 35.253861] RIP: 0033:0x7f4f3504c0d9 executing program [ 35.257568] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 35.265699] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 35.273064] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 35.280396] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 35.287643] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 35.294891] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 35.366832] FAULT_INJECTION: forcing a failure. [ 35.366832] name fail_futex, interval 1, probability 0, space 0, times 0 [ 35.378262] CPU: 0 PID: 7994 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 35.386135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 35.395472] Call Trace: [ 35.398038] dump_stack+0x1b2/0x281 [ 35.401686] should_fail.cold+0x10a/0x149 [ 35.405817] get_futex_key+0x82a/0x11b0 [ 35.409769] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 35.414418] ? get_termio+0x240/0x240 [ 35.418204] futex_wake+0xc6/0x3c0 [ 35.421718] ? get_futex_key+0x11b0/0x11b0 [ 35.425930] ? n_tty_ioctl_helper+0x4c/0x350 [ 35.430319] do_futex+0x235/0x1570 [ 35.433836] ? tty_fasync+0x2c0/0x2c0 [ 35.437616] ? proc_fail_nth_write+0x7b/0x180 [ 35.442090] ? trace_hardirqs_on+0x10/0x10 [ 35.446328] ? futex_exit_release+0x220/0x220 [ 35.450803] ? fsnotify+0x974/0x11b0 [ 35.454507] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 35.459409] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 35.463884] ? tty_fasync+0x2c0/0x2c0 [ 35.467660] ? do_vfs_ioctl+0xe2/0xff0 [ 35.471519] ? lock_acquire+0x170/0x3f0 [ 35.475518] ? ioctl_preallocate+0x1a0/0x1a0 [ 35.479908] SyS_futex+0x1da/0x290 [ 35.483435] ? do_futex+0x1570/0x1570 [ 35.487210] ? security_file_ioctl+0x83/0xb0 [ 35.491594] ? fput_many+0xe/0x140 [ 35.495109] ? SyS_ioctl+0x5c/0xb0 [ 35.498624] ? do_futex+0x1570/0x1570 [ 35.502399] do_syscall_64+0x1d5/0x640 [ 35.506291] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 35.511497] RIP: 0033:0x7f4f3504c0d9 executing program [ 35.515188] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 35.522894] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 35.530140] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 35.537412] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 35.544658] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 35.551903] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 35.618741] FAULT_INJECTION: forcing a failure. [ 35.618741] name fail_futex, interval 1, probability 0, space 0, times 0 [ 35.630140] CPU: 1 PID: 7999 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 35.638036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 35.647383] Call Trace: [ 35.649946] dump_stack+0x1b2/0x281 [ 35.653548] should_fail.cold+0x10a/0x149 [ 35.657673] get_futex_key+0x82a/0x11b0 [ 35.661622] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 35.666612] ? get_termio+0x240/0x240 [ 35.670391] futex_wake+0xc6/0x3c0 [ 35.673910] ? get_futex_key+0x11b0/0x11b0 [ 35.678119] ? n_tty_ioctl_helper+0x4c/0x350 [ 35.682500] do_futex+0x235/0x1570 [ 35.686015] ? tty_fasync+0x2c0/0x2c0 [ 35.689788] ? proc_fail_nth_write+0x7b/0x180 [ 35.694257] ? trace_hardirqs_on+0x10/0x10 [ 35.698480] ? futex_exit_release+0x220/0x220 [ 35.702957] ? fsnotify+0x974/0x11b0 [ 35.706642] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 35.711545] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 35.716014] ? tty_fasync+0x2c0/0x2c0 [ 35.719785] ? do_vfs_ioctl+0xe2/0xff0 [ 35.723644] ? lock_acquire+0x170/0x3f0 [ 35.727590] ? ioctl_preallocate+0x1a0/0x1a0 [ 35.731975] SyS_futex+0x1da/0x290 [ 35.735498] ? do_futex+0x1570/0x1570 [ 35.739271] ? security_file_ioctl+0x83/0xb0 [ 35.743651] ? fput_many+0xe/0x140 [ 35.747162] ? SyS_ioctl+0x5c/0xb0 [ 35.750674] ? do_futex+0x1570/0x1570 [ 35.754447] do_syscall_64+0x1d5/0x640 [ 35.758311] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 35.763473] RIP: 0033:0x7f4f3504c0d9 executing program [ 35.767158] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 35.774847] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 35.782127] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 35.789373] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 35.796620] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 35.803863] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 35.875512] FAULT_INJECTION: forcing a failure. [ 35.875512] name fail_futex, interval 1, probability 0, space 0, times 0 [ 35.886933] CPU: 0 PID: 8002 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 35.894797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 35.904130] Call Trace: [ 35.906707] dump_stack+0x1b2/0x281 [ 35.910319] should_fail.cold+0x10a/0x149 [ 35.914454] get_futex_key+0x82a/0x11b0 [ 35.918413] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 35.923065] ? get_termio+0x240/0x240 [ 35.926845] futex_wake+0xc6/0x3c0 [ 35.930365] ? get_futex_key+0x11b0/0x11b0 [ 35.934589] ? n_tty_ioctl_helper+0x4c/0x350 [ 35.938982] do_futex+0x235/0x1570 [ 35.942524] ? tty_fasync+0x2c0/0x2c0 [ 35.946305] ? proc_fail_nth_write+0x7b/0x180 [ 35.950779] ? trace_hardirqs_on+0x10/0x10 [ 35.954987] ? futex_exit_release+0x220/0x220 [ 35.959459] ? fsnotify+0x974/0x11b0 [ 35.963172] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 35.968090] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 35.972572] ? tty_fasync+0x2c0/0x2c0 [ 35.976354] ? do_vfs_ioctl+0xe2/0xff0 [ 35.980221] ? lock_acquire+0x170/0x3f0 [ 35.984174] ? ioctl_preallocate+0x1a0/0x1a0 [ 35.988557] SyS_futex+0x1da/0x290 [ 35.992075] ? do_futex+0x1570/0x1570 [ 35.995850] ? security_file_ioctl+0x83/0xb0 [ 36.000230] ? fput_many+0xe/0x140 [ 36.003743] ? SyS_ioctl+0x5c/0xb0 [ 36.007260] ? do_futex+0x1570/0x1570 [ 36.011123] do_syscall_64+0x1d5/0x640 [ 36.014987] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 36.020154] RIP: 0033:0x7f4f3504c0d9 executing program [ 36.023836] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 36.031519] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 36.038767] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 36.046012] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 36.053257] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 36.060499] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 36.126503] FAULT_INJECTION: forcing a failure. [ 36.126503] name fail_futex, interval 1, probability 0, space 0, times 0 [ 36.137910] CPU: 0 PID: 8005 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 36.145764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.155106] Call Trace: [ 36.157677] dump_stack+0x1b2/0x281 [ 36.161281] should_fail.cold+0x10a/0x149 [ 36.165406] get_futex_key+0x82a/0x11b0 [ 36.169468] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 36.174130] ? get_termio+0x240/0x240 [ 36.177909] futex_wake+0xc6/0x3c0 [ 36.181430] ? get_futex_key+0x11b0/0x11b0 [ 36.185649] ? n_tty_ioctl_helper+0x4c/0x350 [ 36.190032] do_futex+0x235/0x1570 [ 36.193554] ? tty_fasync+0x2c0/0x2c0 [ 36.197331] ? proc_fail_nth_write+0x7b/0x180 [ 36.201814] ? trace_hardirqs_on+0x10/0x10 [ 36.206044] ? futex_exit_release+0x220/0x220 [ 36.210520] ? fsnotify+0x974/0x11b0 [ 36.214209] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 36.219117] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 36.223605] ? tty_fasync+0x2c0/0x2c0 [ 36.227383] ? do_vfs_ioctl+0xe2/0xff0 [ 36.231253] ? lock_acquire+0x170/0x3f0 [ 36.235374] ? ioctl_preallocate+0x1a0/0x1a0 [ 36.239776] SyS_futex+0x1da/0x290 [ 36.243305] ? do_futex+0x1570/0x1570 [ 36.247095] ? security_file_ioctl+0x83/0xb0 [ 36.251513] ? fput_many+0xe/0x140 [ 36.255035] ? SyS_ioctl+0x5c/0xb0 [ 36.258554] ? do_futex+0x1570/0x1570 [ 36.262333] do_syscall_64+0x1d5/0x640 [ 36.266210] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 36.271376] RIP: 0033:0x7f4f3504c0d9 executing program [ 36.275060] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 36.282752] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 36.290004] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 36.297266] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 36.304512] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 36.311770] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 36.379937] FAULT_INJECTION: forcing a failure. [ 36.379937] name fail_futex, interval 1, probability 0, space 0, times 0 [ 36.391405] CPU: 0 PID: 8008 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 36.399268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.408604] Call Trace: [ 36.411175] dump_stack+0x1b2/0x281 [ 36.414786] should_fail.cold+0x10a/0x149 [ 36.418914] get_futex_key+0x82a/0x11b0 [ 36.422863] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 36.427509] ? get_termio+0x240/0x240 [ 36.431290] futex_wake+0xc6/0x3c0 [ 36.434804] ? get_futex_key+0x11b0/0x11b0 [ 36.439012] ? n_tty_ioctl_helper+0x4c/0x350 [ 36.443394] do_futex+0x235/0x1570 [ 36.446920] ? tty_fasync+0x2c0/0x2c0 [ 36.450698] ? proc_fail_nth_write+0x7b/0x180 [ 36.455166] ? trace_hardirqs_on+0x10/0x10 [ 36.459374] ? futex_exit_release+0x220/0x220 [ 36.463845] ? fsnotify+0x974/0x11b0 [ 36.467531] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 36.472433] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 36.476901] ? tty_fasync+0x2c0/0x2c0 [ 36.480879] ? do_vfs_ioctl+0xe2/0xff0 [ 36.484744] ? lock_acquire+0x170/0x3f0 [ 36.488688] ? ioctl_preallocate+0x1a0/0x1a0 [ 36.493070] SyS_futex+0x1da/0x290 [ 36.496589] ? do_futex+0x1570/0x1570 [ 36.500373] ? security_file_ioctl+0x83/0xb0 [ 36.504754] ? fput_many+0xe/0x140 [ 36.508265] ? SyS_ioctl+0x5c/0xb0 [ 36.511777] ? do_futex+0x1570/0x1570 [ 36.515550] do_syscall_64+0x1d5/0x640 [ 36.519415] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 36.524577] RIP: 0033:0x7f4f3504c0d9 executing program [ 36.528259] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 36.535940] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 36.543184] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 36.550430] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 36.557671] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 36.564913] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 36.631394] FAULT_INJECTION: forcing a failure. [ 36.631394] name fail_futex, interval 1, probability 0, space 0, times 0 [ 36.642808] CPU: 1 PID: 8011 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 36.650672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.659996] Call Trace: [ 36.662559] dump_stack+0x1b2/0x281 [ 36.666166] should_fail.cold+0x10a/0x149 [ 36.670332] get_futex_key+0x82a/0x11b0 [ 36.674290] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 36.678942] ? get_termio+0x240/0x240 [ 36.682725] futex_wake+0xc6/0x3c0 [ 36.686260] ? get_futex_key+0x11b0/0x11b0 [ 36.690905] ? n_tty_ioctl_helper+0x4c/0x350 [ 36.695459] do_futex+0x235/0x1570 [ 36.699064] ? tty_fasync+0x2c0/0x2c0 [ 36.702838] ? proc_fail_nth_write+0x7b/0x180 [ 36.707306] ? trace_hardirqs_on+0x10/0x10 [ 36.711514] ? futex_exit_release+0x220/0x220 [ 36.715980] ? fsnotify+0x974/0x11b0 [ 36.719671] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 36.724584] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 36.729061] ? tty_fasync+0x2c0/0x2c0 [ 36.732838] ? do_vfs_ioctl+0xe2/0xff0 [ 36.736698] ? lock_acquire+0x170/0x3f0 [ 36.740644] ? ioctl_preallocate+0x1a0/0x1a0 [ 36.745025] SyS_futex+0x1da/0x290 [ 36.748539] ? do_futex+0x1570/0x1570 [ 36.752315] ? security_file_ioctl+0x83/0xb0 [ 36.756698] ? fput_many+0xe/0x140 [ 36.760215] ? SyS_ioctl+0x5c/0xb0 [ 36.763728] ? do_futex+0x1570/0x1570 [ 36.767501] do_syscall_64+0x1d5/0x640 [ 36.771361] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 36.776529] RIP: 0033:0x7f4f3504c0d9 executing program [ 36.780217] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 36.787900] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 36.795151] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 36.802396] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 36.809641] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 36.816884] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 36.886994] FAULT_INJECTION: forcing a failure. [ 36.886994] name fail_futex, interval 1, probability 0, space 0, times 0 [ 36.898499] CPU: 0 PID: 8014 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 36.906442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.915768] Call Trace: [ 36.918330] dump_stack+0x1b2/0x281 [ 36.921933] should_fail.cold+0x10a/0x149 [ 36.926055] get_futex_key+0x82a/0x11b0 [ 36.930006] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 36.934648] ? get_termio+0x240/0x240 [ 36.938425] futex_wake+0xc6/0x3c0 [ 36.941969] ? get_futex_key+0x11b0/0x11b0 [ 36.946178] ? n_tty_ioctl_helper+0x4c/0x350 [ 36.950560] do_futex+0x235/0x1570 [ 36.954074] ? tty_fasync+0x2c0/0x2c0 [ 36.957849] ? proc_fail_nth_write+0x7b/0x180 [ 36.962407] ? trace_hardirqs_on+0x10/0x10 [ 36.966617] ? futex_exit_release+0x220/0x220 [ 36.971087] ? fsnotify+0x974/0x11b0 [ 36.974772] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 36.979676] ? __handle_mm_fault+0x80f/0x4620 [ 36.984144] ? tty_fasync+0x2c0/0x2c0 [ 36.987915] ? do_vfs_ioctl+0xe2/0xff0 [ 36.991775] ? lock_acquire+0x170/0x3f0 [ 36.995743] ? ioctl_preallocate+0x1a0/0x1a0 [ 37.000124] SyS_futex+0x1da/0x290 [ 37.003640] ? do_futex+0x1570/0x1570 [ 37.007413] ? security_file_ioctl+0x83/0xb0 [ 37.011794] ? fput_many+0xe/0x140 [ 37.015303] ? SyS_ioctl+0x5c/0xb0 [ 37.018818] ? do_futex+0x1570/0x1570 [ 37.022589] do_syscall_64+0x1d5/0x640 [ 37.026461] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.031622] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 37.035304] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 37.042989] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 37.050236] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 37.057482] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 37.064724] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 37.071990] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 37.139183] FAULT_INJECTION: forcing a failure. [ 37.139183] name fail_futex, interval 1, probability 0, space 0, times 0 [ 37.150594] CPU: 0 PID: 8017 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 37.158449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.167776] Call Trace: [ 37.170339] dump_stack+0x1b2/0x281 [ 37.173940] should_fail.cold+0x10a/0x149 [ 37.178062] get_futex_key+0x82a/0x11b0 [ 37.182010] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 37.186654] ? get_termio+0x240/0x240 [ 37.190427] futex_wake+0xc6/0x3c0 [ 37.193941] ? get_futex_key+0x11b0/0x11b0 [ 37.198146] ? n_tty_ioctl_helper+0x4c/0x350 [ 37.202528] do_futex+0x235/0x1570 [ 37.206130] ? tty_fasync+0x2c0/0x2c0 [ 37.209903] ? proc_fail_nth_write+0x7b/0x180 [ 37.214371] ? trace_hardirqs_on+0x10/0x10 [ 37.218578] ? futex_exit_release+0x220/0x220 [ 37.223045] ? fsnotify+0x974/0x11b0 [ 37.226729] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 37.231628] ? __handle_mm_fault+0x80f/0x4620 [ 37.236144] ? tty_fasync+0x2c0/0x2c0 [ 37.239919] ? do_vfs_ioctl+0xe2/0xff0 [ 37.243785] ? lock_acquire+0x170/0x3f0 [ 37.247732] ? ioctl_preallocate+0x1a0/0x1a0 [ 37.252112] SyS_futex+0x1da/0x290 [ 37.255626] ? do_futex+0x1570/0x1570 [ 37.259403] ? security_file_ioctl+0x83/0xb0 [ 37.263785] ? fput_many+0xe/0x140 [ 37.267299] ? SyS_ioctl+0x5c/0xb0 [ 37.270809] ? do_futex+0x1570/0x1570 [ 37.274580] do_syscall_64+0x1d5/0x640 [ 37.278462] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.283622] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 37.287303] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 37.294986] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 37.302258] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 37.309503] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 37.316760] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 37.324093] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 37.389188] FAULT_INJECTION: forcing a failure. [ 37.389188] name fail_futex, interval 1, probability 0, space 0, times 0 [ 37.400578] CPU: 1 PID: 8020 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 37.408439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.417769] Call Trace: [ 37.420334] dump_stack+0x1b2/0x281 [ 37.423943] should_fail.cold+0x10a/0x149 [ 37.428088] ? trace_hardirqs_on+0x10/0x10 [ 37.432300] get_futex_key+0x82a/0x11b0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 37.436249] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 37.440912] ? check_preemption_disabled+0x35/0x240 [ 37.445908] futex_wait_setup+0xb3/0x260 [ 37.449947] ? futex_wake+0x3c0/0x3c0 [ 37.453730] ? do_raw_spin_unlock+0x164/0x220 [ 37.458202] futex_wait+0x199/0x5a0 [ 37.461806] ? futex_wait_setup+0x260/0x260 [ 37.466104] ? lock_downgrade+0x740/0x740 [ 37.470227] ? wake_up_q+0x82/0xd0 [ 37.473765] ? drop_futex_key_refs+0x2e/0xa0 [ 37.478248] ? futex_wake+0x116/0x3c0 [ 37.482029] do_futex+0x1d8/0x1570 [ 37.485544] ? tty_fasync+0x2c0/0x2c0 [ 37.489409] ? proc_fail_nth_write+0x7b/0x180 [ 37.493888] ? trace_hardirqs_on+0x10/0x10 [ 37.498108] ? futex_exit_release+0x220/0x220 [ 37.502578] ? fsnotify+0x974/0x11b0 [ 37.506268] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 37.511179] ? __handle_mm_fault+0x80f/0x4620 [ 37.515649] ? tty_fasync+0x2c0/0x2c0 [ 37.519427] ? do_vfs_ioctl+0xe2/0xff0 [ 37.523466] ? lock_acquire+0x170/0x3f0 [ 37.527416] ? ioctl_preallocate+0x1a0/0x1a0 [ 37.531807] SyS_futex+0x1da/0x290 [ 37.535324] ? do_futex+0x1570/0x1570 executing program [ 37.539103] ? security_file_ioctl+0x83/0xb0 [ 37.543487] ? fput_many+0xe/0x140 [ 37.546997] ? SyS_ioctl+0x5c/0xb0 [ 37.550509] ? do_futex+0x1570/0x1570 [ 37.554282] do_syscall_64+0x1d5/0x640 [ 37.558145] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.563308] RIP: 0033:0x7f4f3504c0d9 [ 37.566990] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 37.574684] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 37.581929] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 [ 37.589174] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 37.596512] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 37.603765] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 37.673586] FAULT_INJECTION: forcing a failure. [ 37.673586] name fail_futex, interval 1, probability 0, space 0, times 0 [ 37.685021] CPU: 1 PID: 8023 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 37.692881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.702300] Call Trace: [ 37.704869] dump_stack+0x1b2/0x281 [ 37.708489] should_fail.cold+0x10a/0x149 [ 37.712621] ? cpuacct_charge+0x1cf/0x350 [ 37.716753] get_futex_key+0x82a/0x11b0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 37.720705] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 37.725357] ? check_preempt_wakeup+0x3b4/0xce0 [ 37.730012] futex_wait_setup+0xb3/0x260 [ 37.734063] ? futex_wake+0x3c0/0x3c0 [ 37.737845] ? do_raw_spin_unlock+0x164/0x220 [ 37.742318] futex_wait+0x199/0x5a0 [ 37.745920] ? futex_wait_setup+0x260/0x260 [ 37.750219] ? lock_downgrade+0x740/0x740 [ 37.754456] ? wake_up_q+0x82/0xd0 [ 37.757976] ? drop_futex_key_refs+0x2e/0xa0 [ 37.762357] ? futex_wake+0x116/0x3c0 [ 37.766139] do_futex+0x1d8/0x1570 [ 37.769655] ? tty_fasync+0x2c0/0x2c0 [ 37.773427] ? proc_fail_nth_write+0x7b/0x180 [ 37.777895] ? trace_hardirqs_on+0x10/0x10 [ 37.782103] ? futex_exit_release+0x220/0x220 [ 37.786601] ? fsnotify+0x974/0x11b0 [ 37.790292] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 37.795193] ? __handle_mm_fault+0x80f/0x4620 [ 37.799681] ? tty_fasync+0x2c0/0x2c0 [ 37.803458] ? do_vfs_ioctl+0xe2/0xff0 [ 37.807322] ? lock_acquire+0x170/0x3f0 [ 37.811267] ? ioctl_preallocate+0x1a0/0x1a0 [ 37.815647] SyS_futex+0x1da/0x290 [ 37.819162] ? do_futex+0x1570/0x1570 executing program [ 37.822936] ? security_file_ioctl+0x83/0xb0 [ 37.827317] ? fput_many+0xe/0x140 [ 37.830831] ? SyS_ioctl+0x5c/0xb0 [ 37.834343] ? do_futex+0x1570/0x1570 [ 37.838117] do_syscall_64+0x1d5/0x640 [ 37.841982] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.847143] RIP: 0033:0x7f4f3504c0d9 [ 37.850826] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 37.858514] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 37.865755] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 [ 37.872999] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 37.880503] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 37.887745] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 37.953901] FAULT_INJECTION: forcing a failure. [ 37.953901] name fail_futex, interval 1, probability 0, space 0, times 0 [ 37.965422] CPU: 0 PID: 8026 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 37.973289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.982794] Call Trace: [ 37.985384] dump_stack+0x1b2/0x281 [ 37.989161] should_fail.cold+0x10a/0x149 [ 37.993372] get_futex_key+0x82a/0x11b0 [ 37.997410] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 38.002055] ? get_termio+0x240/0x240 [ 38.005833] futex_wake+0xc6/0x3c0 [ 38.009344] ? get_futex_key+0x11b0/0x11b0 [ 38.013554] ? n_tty_ioctl_helper+0x4c/0x350 [ 38.018024] do_futex+0x235/0x1570 [ 38.021539] ? tty_fasync+0x2c0/0x2c0 [ 38.025313] ? proc_fail_nth_write+0x7b/0x180 [ 38.029782] ? trace_hardirqs_on+0x10/0x10 [ 38.033995] ? futex_exit_release+0x220/0x220 [ 38.038467] ? fsnotify+0x974/0x11b0 [ 38.042151] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 38.047052] ? __handle_mm_fault+0x80f/0x4620 [ 38.051526] ? tty_fasync+0x2c0/0x2c0 [ 38.055298] ? do_vfs_ioctl+0xe2/0xff0 [ 38.059160] ? lock_acquire+0x170/0x3f0 [ 38.063108] ? ioctl_preallocate+0x1a0/0x1a0 [ 38.067496] SyS_futex+0x1da/0x290 [ 38.071015] ? do_futex+0x1570/0x1570 [ 38.074790] ? security_file_ioctl+0x83/0xb0 [ 38.079180] ? fput_many+0xe/0x140 [ 38.082704] ? SyS_ioctl+0x5c/0xb0 [ 38.086226] ? do_futex+0x1570/0x1570 [ 38.090007] do_syscall_64+0x1d5/0x640 [ 38.093874] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.099038] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 38.102722] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 38.110493] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 38.117736] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 38.124996] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 38.132258] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 38.139502] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 38.209908] FAULT_INJECTION: forcing a failure. [ 38.209908] name fail_futex, interval 1, probability 0, space 0, times 0 [ 38.221308] CPU: 0 PID: 8029 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 38.229255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 38.238581] Call Trace: [ 38.241145] dump_stack+0x1b2/0x281 [ 38.244753] should_fail.cold+0x10a/0x149 [ 38.248875] ? cpuacct_charge+0x1cf/0x350 [ 38.252994] get_futex_key+0x82a/0x11b0 [ 38.256948] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 38.261595] ? check_preempt_wakeup+0x3b4/0xce0 [ 38.266237] futex_wait_setup+0xb3/0x260 [ 38.270303] ? futex_wake+0x3c0/0x3c0 [ 38.274077] ? do_raw_spin_unlock+0x164/0x220 [ 38.278543] futex_wait+0x199/0x5a0 [ 38.282141] ? futex_wait_setup+0x260/0x260 [ 38.286433] ? lock_downgrade+0x740/0x740 [ 38.290817] ? wake_up_q+0x82/0xd0 [ 38.294329] ? drop_futex_key_refs+0x2e/0xa0 [ 38.298710] ? futex_wake+0x116/0x3c0 [ 38.302487] do_futex+0x1d8/0x1570 [ 38.306007] ? tty_fasync+0x2c0/0x2c0 [ 38.309785] ? proc_fail_nth_write+0x7b/0x180 [ 38.314257] ? trace_hardirqs_on+0x10/0x10 [ 38.318467] ? futex_exit_release+0x220/0x220 [ 38.322961] ? fsnotify+0x974/0x11b0 [ 38.326647] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 38.331551] ? __handle_mm_fault+0x80f/0x4620 [ 38.336029] ? tty_fasync+0x2c0/0x2c0 [ 38.339817] ? do_vfs_ioctl+0xe2/0xff0 [ 38.343683] ? lock_acquire+0x170/0x3f0 [ 38.347633] ? ioctl_preallocate+0x1a0/0x1a0 [ 38.352016] SyS_futex+0x1da/0x290 [ 38.355537] ? do_futex+0x1570/0x1570 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 38.359314] ? security_file_ioctl+0x83/0xb0 [ 38.363696] ? fput_many+0xe/0x140 [ 38.367209] ? SyS_ioctl+0x5c/0xb0 [ 38.370836] ? do_futex+0x1570/0x1570 [ 38.374620] do_syscall_64+0x1d5/0x640 [ 38.378493] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.383663] RIP: 0033:0x7f4f3504c0d9 [ 38.387348] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 38.395030] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 38.403490] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 [ 38.410835] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 38.418102] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 38.425346] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 38.496690] FAULT_INJECTION: forcing a failure. [ 38.496690] name fail_futex, interval 1, probability 0, space 0, times 0 [ 38.508091] CPU: 0 PID: 8032 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 38.515962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 38.525304] Call Trace: [ 38.528977] dump_stack+0x1b2/0x281 [ 38.532586] should_fail.cold+0x10a/0x149 [ 38.536707] ? trace_hardirqs_on+0x10/0x10 [ 38.540913] get_futex_key+0x82a/0x11b0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 38.544862] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 38.549504] ? check_preemption_disabled+0x35/0x240 [ 38.554494] futex_wait_setup+0xb3/0x260 [ 38.558527] ? futex_wake+0x3c0/0x3c0 [ 38.562298] ? do_raw_spin_unlock+0x164/0x220 [ 38.566765] futex_wait+0x199/0x5a0 [ 38.570373] ? futex_wait_setup+0x260/0x260 [ 38.574672] ? lock_downgrade+0x740/0x740 [ 38.578797] ? wake_up_q+0x82/0xd0 [ 38.582310] ? drop_futex_key_refs+0x2e/0xa0 [ 38.586693] ? futex_wake+0x116/0x3c0 [ 38.590471] do_futex+0x1d8/0x1570 [ 38.593986] ? tty_fasync+0x2c0/0x2c0 [ 38.597757] ? proc_fail_nth_write+0x7b/0x180 [ 38.602224] ? trace_hardirqs_on+0x10/0x10 [ 38.606434] ? futex_exit_release+0x220/0x220 [ 38.610907] ? fsnotify+0x974/0x11b0 [ 38.614593] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 38.619496] ? __handle_mm_fault+0x80f/0x4620 [ 38.623967] ? tty_fasync+0x2c0/0x2c0 [ 38.627755] ? do_vfs_ioctl+0xe2/0xff0 [ 38.631615] ? lock_acquire+0x170/0x3f0 [ 38.635565] ? ioctl_preallocate+0x1a0/0x1a0 [ 38.639951] SyS_futex+0x1da/0x290 [ 38.643470] ? do_futex+0x1570/0x1570 [ 38.647242] ? security_file_ioctl+0x83/0xb0 [ 38.651624] ? fput_many+0xe/0x140 [ 38.655140] ? SyS_ioctl+0x5c/0xb0 [ 38.658653] ? do_futex+0x1570/0x1570 [ 38.662433] do_syscall_64+0x1d5/0x640 [ 38.666301] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.671460] RIP: 0033:0x7f4f3504c0d9 [ 38.675145] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 38.682828] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 38.690069] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 38.697314] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 38.704556] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 38.711805] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 38.785229] FAULT_INJECTION: forcing a failure. [ 38.785229] name fail_futex, interval 1, probability 0, space 0, times 0 [ 38.796634] CPU: 0 PID: 8035 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 38.804508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 38.813834] Call Trace: [ 38.816401] dump_stack+0x1b2/0x281 [ 38.820005] should_fail.cold+0x10a/0x149 [ 38.824126] ? trace_hardirqs_on+0x10/0x10 [ 38.828339] get_futex_key+0x82a/0x11b0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 38.832289] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 38.836934] ? check_preemption_disabled+0x35/0x240 [ 38.841925] futex_wait_setup+0xb3/0x260 [ 38.845995] ? futex_wake+0x3c0/0x3c0 [ 38.849770] ? do_raw_spin_unlock+0x164/0x220 [ 38.854257] futex_wait+0x199/0x5a0 [ 38.857860] ? futex_wait_setup+0x260/0x260 [ 38.862158] ? lock_downgrade+0x740/0x740 [ 38.866279] ? wake_up_q+0x82/0xd0 [ 38.869793] ? drop_futex_key_refs+0x2e/0xa0 [ 38.874174] ? futex_wake+0x116/0x3c0 [ 38.877951] do_futex+0x1d8/0x1570 [ 38.881478] ? tty_fasync+0x2c0/0x2c0 [ 38.885256] ? proc_fail_nth_write+0x7b/0x180 [ 38.889736] ? trace_hardirqs_on+0x10/0x10 [ 38.893954] ? futex_exit_release+0x220/0x220 [ 38.898433] ? fsnotify+0x974/0x11b0 [ 38.902134] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 38.907036] ? __handle_mm_fault+0x80f/0x4620 [ 38.911513] ? tty_fasync+0x2c0/0x2c0 [ 38.915287] ? do_vfs_ioctl+0xe2/0xff0 [ 38.919149] ? lock_acquire+0x170/0x3f0 [ 38.923097] ? ioctl_preallocate+0x1a0/0x1a0 [ 38.927484] SyS_futex+0x1da/0x290 [ 38.930999] ? do_futex+0x1570/0x1570 executing program [ 38.934773] ? security_file_ioctl+0x83/0xb0 [ 38.939156] ? fput_many+0xe/0x140 [ 38.942691] ? SyS_ioctl+0x5c/0xb0 [ 38.946202] ? do_futex+0x1570/0x1570 [ 38.949981] do_syscall_64+0x1d5/0x640 [ 38.953858] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.959021] RIP: 0033:0x7f4f3504c0d9 [ 38.962705] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 38.970384] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 38.977653] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 [ 38.984900] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 38.992145] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 38.999391] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 39.072049] FAULT_INJECTION: forcing a failure. [ 39.072049] name fail_futex, interval 1, probability 0, space 0, times 0 [ 39.083707] CPU: 0 PID: 8038 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 39.091681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 39.101014] Call Trace: [ 39.103595] dump_stack+0x1b2/0x281 [ 39.107201] should_fail.cold+0x10a/0x149 [ 39.111328] get_futex_key+0x82a/0x11b0 [ 39.115277] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 39.119925] ? get_termio+0x240/0x240 [ 39.123703] futex_wake+0xc6/0x3c0 [ 39.127226] ? get_futex_key+0x11b0/0x11b0 [ 39.131441] ? n_tty_ioctl_helper+0x4c/0x350 [ 39.135826] do_futex+0x235/0x1570 [ 39.139343] ? tty_fasync+0x2c0/0x2c0 [ 39.143117] ? proc_fail_nth_write+0x7b/0x180 [ 39.147582] ? trace_hardirqs_on+0x10/0x10 [ 39.151790] ? futex_exit_release+0x220/0x220 [ 39.156259] ? fsnotify+0x974/0x11b0 [ 39.159948] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 39.164856] ? __handle_mm_fault+0x80f/0x4620 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 39.169340] ? tty_fasync+0x2c0/0x2c0 [ 39.173116] ? do_vfs_ioctl+0xe2/0xff0 [ 39.176976] ? lock_acquire+0x170/0x3f0 [ 39.180941] ? ioctl_preallocate+0x1a0/0x1a0 [ 39.185329] SyS_futex+0x1da/0x290 [ 39.188847] ? do_futex+0x1570/0x1570 [ 39.192624] ? security_file_ioctl+0x83/0xb0 [ 39.197006] ? fput_many+0xe/0x140 [ 39.200520] ? SyS_ioctl+0x5c/0xb0 [ 39.204031] ? do_futex+0x1570/0x1570 [ 39.207803] do_syscall_64+0x1d5/0x640 [ 39.211671] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 39.216835] RIP: 0033:0x7f4f3504c0d9 executing program [ 39.220519] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 39.228201] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 39.235446] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 39.242692] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 39.249937] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 39.257202] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 39.327105] FAULT_INJECTION: forcing a failure. [ 39.327105] name fail_futex, interval 1, probability 0, space 0, times 0 [ 39.338496] CPU: 0 PID: 8041 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 39.346350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 39.355679] Call Trace: [ 39.358252] dump_stack+0x1b2/0x281 [ 39.361858] should_fail.cold+0x10a/0x149 [ 39.365985] ? cpuacct_charge+0x1cf/0x350 [ 39.370112] get_futex_key+0x82a/0x11b0 [ 39.374065] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 39.378713] ? check_preempt_wakeup+0x3b4/0xce0 [ 39.383366] futex_wait_setup+0xb3/0x260 [ 39.387407] ? futex_wake+0x3c0/0x3c0 [ 39.391184] ? do_raw_spin_unlock+0x164/0x220 [ 39.395659] futex_wait+0x199/0x5a0 [ 39.399261] ? futex_wait_setup+0x260/0x260 [ 39.403555] ? lock_downgrade+0x740/0x740 [ 39.407679] ? wake_up_q+0x82/0xd0 [ 39.411280] ? drop_futex_key_refs+0x2e/0xa0 [ 39.415660] ? futex_wake+0x116/0x3c0 [ 39.419438] do_futex+0x1d8/0x1570 [ 39.422957] ? tty_fasync+0x2c0/0x2c0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 39.426734] ? proc_fail_nth_write+0x7b/0x180 [ 39.431202] ? trace_hardirqs_on+0x10/0x10 [ 39.435410] ? futex_exit_release+0x220/0x220 [ 39.439883] ? fsnotify+0x974/0x11b0 [ 39.443571] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 39.448478] ? __handle_mm_fault+0x80f/0x4620 [ 39.452945] ? tty_fasync+0x2c0/0x2c0 [ 39.456718] ? do_vfs_ioctl+0xe2/0xff0 [ 39.460578] ? lock_acquire+0x170/0x3f0 [ 39.464523] ? ioctl_preallocate+0x1a0/0x1a0 [ 39.468906] SyS_futex+0x1da/0x290 [ 39.472421] ? do_futex+0x1570/0x1570 [ 39.476198] ? security_file_ioctl+0x83/0xb0 [ 39.480578] ? fput_many+0xe/0x140 [ 39.484091] ? SyS_ioctl+0x5c/0xb0 [ 39.487611] ? do_futex+0x1570/0x1570 [ 39.491388] do_syscall_64+0x1d5/0x640 [ 39.495252] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 39.500418] RIP: 0033:0x7f4f3504c0d9 [ 39.504103] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 39.511783] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 39.519025] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 39.526288] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 39.533534] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 39.540784] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 39.613749] FAULT_INJECTION: forcing a failure. [ 39.613749] name fail_futex, interval 1, probability 0, space 0, times 0 [ 39.625145] CPU: 1 PID: 8044 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 39.633031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 39.642359] Call Trace: [ 39.644922] dump_stack+0x1b2/0x281 [ 39.648525] should_fail.cold+0x10a/0x149 [ 39.652682] get_futex_key+0x82a/0x11b0 [ 39.656631] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 39.661276] ? get_termio+0x240/0x240 [ 39.665047] futex_wake+0xc6/0x3c0 [ 39.668564] ? get_futex_key+0x11b0/0x11b0 [ 39.672773] ? n_tty_ioctl_helper+0x4c/0x350 [ 39.677156] do_futex+0x235/0x1570 [ 39.680674] ? tty_fasync+0x2c0/0x2c0 [ 39.684451] ? proc_fail_nth_write+0x7b/0x180 [ 39.688921] ? trace_hardirqs_on+0x10/0x10 [ 39.693128] ? futex_exit_release+0x220/0x220 [ 39.697596] ? fsnotify+0x974/0x11b0 [ 39.701283] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 39.706186] ? __handle_mm_fault+0x80f/0x4620 [ 39.710657] ? tty_fasync+0x2c0/0x2c0 [ 39.714431] ? do_vfs_ioctl+0xe2/0xff0 [ 39.718291] ? lock_acquire+0x170/0x3f0 [ 39.722587] ? ioctl_preallocate+0x1a0/0x1a0 [ 39.726968] SyS_futex+0x1da/0x290 [ 39.730481] ? do_futex+0x1570/0x1570 [ 39.734256] ? security_file_ioctl+0x83/0xb0 [ 39.738636] ? fput_many+0xe/0x140 [ 39.742149] ? SyS_ioctl+0x5c/0xb0 [ 39.745661] ? do_futex+0x1570/0x1570 [ 39.749435] do_syscall_64+0x1d5/0x640 [ 39.753386] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 39.758547] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.762231] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 39.769917] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 39.777176] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 39.784417] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 39.791660] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 39.798901] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 39.869738] FAULT_INJECTION: forcing a failure. [ 39.869738] name fail_futex, interval 1, probability 0, space 0, times 0 [ 39.881347] CPU: 0 PID: 8047 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 39.889208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 39.898541] Call Trace: [ 39.901111] dump_stack+0x1b2/0x281 [ 39.904733] should_fail.cold+0x10a/0x149 [ 39.908975] get_futex_key+0x82a/0x11b0 [ 39.912927] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 39.917572] ? get_termio+0x240/0x240 [ 39.921346] futex_wake+0xc6/0x3c0 [ 39.924858] ? get_futex_key+0x11b0/0x11b0 [ 39.929068] ? n_tty_ioctl_helper+0x4c/0x350 [ 39.933451] do_futex+0x235/0x1570 [ 39.936974] ? tty_fasync+0x2c0/0x2c0 [ 39.940753] ? proc_fail_nth_write+0x7b/0x180 [ 39.945223] ? trace_hardirqs_on+0x10/0x10 [ 39.949431] ? futex_exit_release+0x220/0x220 [ 39.953898] ? fsnotify+0x974/0x11b0 [ 39.957585] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 39.962484] ? __handle_mm_fault+0x80f/0x4620 [ 39.966965] ? tty_fasync+0x2c0/0x2c0 [ 39.970740] ? do_vfs_ioctl+0xe2/0xff0 [ 39.974601] ? lock_acquire+0x170/0x3f0 [ 39.978549] ? ioctl_preallocate+0x1a0/0x1a0 [ 39.982975] SyS_futex+0x1da/0x290 [ 39.986490] ? do_futex+0x1570/0x1570 [ 39.990271] ? security_file_ioctl+0x83/0xb0 [ 39.994665] ? fput_many+0xe/0x140 [ 39.998182] ? SyS_ioctl+0x5c/0xb0 [ 40.001716] ? do_futex+0x1570/0x1570 [ 40.005494] do_syscall_64+0x1d5/0x640 [ 40.009364] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 40.014527] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 40.018210] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 40.025892] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 40.033137] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 40.040380] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 40.047627] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 40.054867] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 40.125961] FAULT_INJECTION: forcing a failure. [ 40.125961] name fail_futex, interval 1, probability 0, space 0, times 0 [ 40.137378] CPU: 0 PID: 8050 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 40.145244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 40.154576] Call Trace: [ 40.157148] dump_stack+0x1b2/0x281 [ 40.160755] should_fail.cold+0x10a/0x149 [ 40.164893] ? trace_hardirqs_on+0x10/0x10 [ 40.169104] get_futex_key+0x82a/0x11b0 [ 40.173052] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 40.177696] ? check_preemption_disabled+0x35/0x240 [ 40.182689] futex_wait_setup+0xb3/0x260 [ 40.186727] ? futex_wake+0x3c0/0x3c0 [ 40.190503] ? do_raw_spin_unlock+0x164/0x220 [ 40.195147] futex_wait+0x199/0x5a0 [ 40.198758] ? futex_wait_setup+0x260/0x260 [ 40.203056] ? lock_downgrade+0x740/0x740 [ 40.207180] ? wake_up_q+0x82/0xd0 [ 40.210711] ? drop_futex_key_refs+0x2e/0xa0 [ 40.215095] ? futex_wake+0x116/0x3c0 [ 40.218965] do_futex+0x1d8/0x1570 [ 40.222495] ? tty_fasync+0x2c0/0x2c0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 40.226284] ? proc_fail_nth_write+0x7b/0x180 [ 40.230761] ? trace_hardirqs_on+0x10/0x10 [ 40.235018] ? futex_exit_release+0x220/0x220 [ 40.239493] ? fsnotify+0x974/0x11b0 [ 40.243181] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 40.248087] ? __handle_mm_fault+0x80f/0x4620 [ 40.252665] ? tty_fasync+0x2c0/0x2c0 [ 40.256446] ? do_vfs_ioctl+0xe2/0xff0 [ 40.260313] ? lock_acquire+0x170/0x3f0 [ 40.264262] ? ioctl_preallocate+0x1a0/0x1a0 [ 40.268742] SyS_futex+0x1da/0x290 [ 40.272259] ? do_futex+0x1570/0x1570 [ 40.276041] ? security_file_ioctl+0x83/0xb0 [ 40.280425] ? fput_many+0xe/0x140 [ 40.283944] ? SyS_ioctl+0x5c/0xb0 [ 40.287460] ? do_futex+0x1570/0x1570 [ 40.291235] do_syscall_64+0x1d5/0x640 [ 40.295097] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 40.300260] RIP: 0033:0x7f4f3504c0d9 [ 40.303943] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 40.311648] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 40.318896] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 40.326141] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 40.333381] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 40.340623] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 40.415043] FAULT_INJECTION: forcing a failure. [ 40.415043] name fail_futex, interval 1, probability 0, space 0, times 0 [ 40.426449] CPU: 0 PID: 8053 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 40.434963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 40.444291] Call Trace: [ 40.446868] dump_stack+0x1b2/0x281 [ 40.450486] should_fail.cold+0x10a/0x149 [ 40.454614] ? trace_hardirqs_on+0x10/0x10 [ 40.458835] get_futex_key+0x82a/0x11b0 [ 40.462788] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 40.467432] ? check_preemption_disabled+0x35/0x240 [ 40.472426] futex_wait_setup+0xb3/0x260 [ 40.476466] ? futex_wake+0x3c0/0x3c0 [ 40.480240] ? do_raw_spin_unlock+0x164/0x220 [ 40.484716] futex_wait+0x199/0x5a0 [ 40.488337] ? futex_wait_setup+0x260/0x260 [ 40.492632] ? lock_downgrade+0x740/0x740 [ 40.496755] ? wake_up_q+0x82/0xd0 [ 40.500269] ? drop_futex_key_refs+0x2e/0xa0 [ 40.504647] ? futex_wake+0x116/0x3c0 [ 40.508424] do_futex+0x1d8/0x1570 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 40.511940] ? tty_fasync+0x2c0/0x2c0 [ 40.515716] ? proc_fail_nth_write+0x7b/0x180 [ 40.520188] ? trace_hardirqs_on+0x10/0x10 [ 40.524400] ? futex_exit_release+0x220/0x220 [ 40.528875] ? fsnotify+0x974/0x11b0 [ 40.532562] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 40.537463] ? __handle_mm_fault+0x80f/0x4620 [ 40.541953] ? tty_fasync+0x2c0/0x2c0 [ 40.545740] ? do_vfs_ioctl+0xe2/0xff0 [ 40.549605] ? lock_acquire+0x170/0x3f0 [ 40.553558] ? ioctl_preallocate+0x1a0/0x1a0 [ 40.557943] SyS_futex+0x1da/0x290 [ 40.561555] ? do_futex+0x1570/0x1570 [ 40.565343] ? security_file_ioctl+0x83/0xb0 [ 40.569726] ? fput_many+0xe/0x140 [ 40.573236] ? SyS_ioctl+0x5c/0xb0 [ 40.576748] ? do_futex+0x1570/0x1570 [ 40.580531] do_syscall_64+0x1d5/0x640 [ 40.584393] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 40.589639] RIP: 0033:0x7f4f3504c0d9 [ 40.593323] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 40.601007] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 40.608249] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 40.615493] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 40.622737] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 40.630067] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 40.702595] FAULT_INJECTION: forcing a failure. [ 40.702595] name fail_futex, interval 1, probability 0, space 0, times 0 [ 40.714034] CPU: 0 PID: 8056 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 40.721888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 40.731215] Call Trace: [ 40.733780] dump_stack+0x1b2/0x281 [ 40.737380] should_fail.cold+0x10a/0x149 [ 40.741505] ? trace_hardirqs_on+0x10/0x10 [ 40.745711] get_futex_key+0x82a/0x11b0 [ 40.749668] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 40.754313] ? check_preemption_disabled+0x35/0x240 [ 40.759300] futex_wait_setup+0xb3/0x260 [ 40.763336] ? futex_wake+0x3c0/0x3c0 [ 40.767111] ? do_raw_spin_unlock+0x164/0x220 [ 40.771670] futex_wait+0x199/0x5a0 [ 40.775292] ? futex_wait_setup+0x260/0x260 [ 40.779584] ? lock_downgrade+0x740/0x740 [ 40.783705] ? wake_up_q+0x82/0xd0 [ 40.787217] ? drop_futex_key_refs+0x2e/0xa0 [ 40.791595] ? futex_wake+0x116/0x3c0 [ 40.795375] do_futex+0x1d8/0x1570 [ 40.798892] ? tty_fasync+0x2c0/0x2c0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 40.802670] ? proc_fail_nth_write+0x7b/0x180 [ 40.807138] ? trace_hardirqs_on+0x10/0x10 [ 40.811358] ? futex_exit_release+0x220/0x220 [ 40.815827] ? fsnotify+0x974/0x11b0 [ 40.819519] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 40.824420] ? __handle_mm_fault+0x80f/0x4620 [ 40.828892] ? tty_fasync+0x2c0/0x2c0 [ 40.832664] ? do_vfs_ioctl+0xe2/0xff0 [ 40.836521] ? lock_acquire+0x170/0x3f0 [ 40.840469] ? ioctl_preallocate+0x1a0/0x1a0 [ 40.844863] SyS_futex+0x1da/0x290 [ 40.848380] ? do_futex+0x1570/0x1570 [ 40.852162] ? security_file_ioctl+0x83/0xb0 [ 40.856543] ? fput_many+0xe/0x140 [ 40.860056] ? SyS_ioctl+0x5c/0xb0 [ 40.863574] ? do_futex+0x1570/0x1570 [ 40.867347] do_syscall_64+0x1d5/0x640 [ 40.871207] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 40.876366] RIP: 0033:0x7f4f3504c0d9 [ 40.880048] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 40.887725] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 40.894974] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 40.902231] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 40.909477] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 40.916721] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 40.990435] FAULT_INJECTION: forcing a failure. [ 40.990435] name fail_futex, interval 1, probability 0, space 0, times 0 [ 41.002080] CPU: 1 PID: 8059 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 41.009940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 41.019268] Call Trace: [ 41.021842] dump_stack+0x1b2/0x281 [ 41.025450] should_fail.cold+0x10a/0x149 [ 41.029604] ? trace_hardirqs_on+0x10/0x10 [ 41.033908] get_futex_key+0x82a/0x11b0 [ 41.037858] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 41.042500] ? check_preemption_disabled+0x35/0x240 [ 41.047492] futex_wait_setup+0xb3/0x260 [ 41.051534] ? futex_wake+0x3c0/0x3c0 [ 41.055315] ? do_raw_spin_unlock+0x164/0x220 [ 41.059785] futex_wait+0x199/0x5a0 [ 41.063518] ? futex_wait_setup+0x260/0x260 [ 41.067834] ? lock_downgrade+0x740/0x740 [ 41.071973] ? wake_up_q+0x82/0xd0 [ 41.075496] ? drop_futex_key_refs+0x2e/0xa0 [ 41.079897] ? futex_wake+0x116/0x3c0 [ 41.083685] do_futex+0x1d8/0x1570 [ 41.087219] ? tty_fasync+0x2c0/0x2c0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 41.090998] ? proc_fail_nth_write+0x7b/0x180 [ 41.095472] ? trace_hardirqs_on+0x10/0x10 [ 41.099692] ? futex_exit_release+0x220/0x220 [ 41.104178] ? fsnotify+0x974/0x11b0 [ 41.107866] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 41.112778] ? __handle_mm_fault+0x80f/0x4620 [ 41.117248] ? tty_fasync+0x2c0/0x2c0 [ 41.121021] ? do_vfs_ioctl+0xe2/0xff0 [ 41.124880] ? lock_acquire+0x170/0x3f0 [ 41.128825] ? ioctl_preallocate+0x1a0/0x1a0 [ 41.133211] SyS_futex+0x1da/0x290 [ 41.136725] ? do_futex+0x1570/0x1570 [ 41.140499] ? security_file_ioctl+0x83/0xb0 [ 41.144895] ? fput_many+0xe/0x140 [ 41.148407] ? SyS_ioctl+0x5c/0xb0 [ 41.151923] ? do_futex+0x1570/0x1570 [ 41.155695] do_syscall_64+0x1d5/0x640 [ 41.159572] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 41.164752] RIP: 0033:0x7f4f3504c0d9 [ 41.168437] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 41.176130] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 41.183375] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 41.190643] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 41.197898] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 41.205142] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 41.270303] FAULT_INJECTION: forcing a failure. [ 41.270303] name fail_futex, interval 1, probability 0, space 0, times 0 [ 41.281695] CPU: 0 PID: 8062 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 41.289551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 41.298877] Call Trace: [ 41.301444] dump_stack+0x1b2/0x281 [ 41.305048] should_fail.cold+0x10a/0x149 [ 41.309171] ? trace_hardirqs_on+0x10/0x10 [ 41.313378] get_futex_key+0x82a/0x11b0 [ 41.317323] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 41.321965] ? check_preemption_disabled+0x35/0x240 [ 41.326953] futex_wait_setup+0xb3/0x260 [ 41.330990] ? futex_wake+0x3c0/0x3c0 [ 41.334763] ? do_raw_spin_unlock+0x164/0x220 [ 41.339230] futex_wait+0x199/0x5a0 [ 41.342834] ? futex_wait_setup+0x260/0x260 [ 41.347126] ? lock_downgrade+0x740/0x740 [ 41.351247] ? wake_up_q+0x82/0xd0 [ 41.354763] ? drop_futex_key_refs+0x2e/0xa0 [ 41.359142] ? futex_wake+0x116/0x3c0 [ 41.362932] do_futex+0x1d8/0x1570 [ 41.366467] ? tty_fasync+0x2c0/0x2c0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 41.370239] ? proc_fail_nth_write+0x7b/0x180 [ 41.374707] ? trace_hardirqs_on+0x10/0x10 [ 41.378932] ? futex_exit_release+0x220/0x220 [ 41.383408] ? fsnotify+0x974/0x11b0 [ 41.387093] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 41.391994] ? __handle_mm_fault+0x80f/0x4620 [ 41.396466] ? tty_fasync+0x2c0/0x2c0 [ 41.400244] ? do_vfs_ioctl+0xe2/0xff0 [ 41.404115] ? lock_acquire+0x170/0x3f0 [ 41.408060] ? ioctl_preallocate+0x1a0/0x1a0 [ 41.412441] SyS_futex+0x1da/0x290 [ 41.415956] ? do_futex+0x1570/0x1570 [ 41.419727] ? security_file_ioctl+0x83/0xb0 [ 41.424107] ? fput_many+0xe/0x140 [ 41.427620] ? SyS_ioctl+0x5c/0xb0 [ 41.431132] ? do_futex+0x1570/0x1570 [ 41.434904] do_syscall_64+0x1d5/0x640 [ 41.438767] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 41.443928] RIP: 0033:0x7f4f3504c0d9 [ 41.447612] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 41.455292] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 41.462537] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 41.469781] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 41.477022] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 41.484265] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 41.555316] FAULT_INJECTION: forcing a failure. [ 41.555316] name fail_futex, interval 1, probability 0, space 0, times 0 [ 41.566721] CPU: 0 PID: 8065 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 41.574587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 41.583916] Call Trace: [ 41.586511] dump_stack+0x1b2/0x281 [ 41.590122] should_fail.cold+0x10a/0x149 [ 41.594245] ? cpuacct_charge+0x1cf/0x350 [ 41.598369] get_futex_key+0x82a/0x11b0 [ 41.602318] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 41.606957] ? check_preempt_wakeup+0x3b4/0xce0 [ 41.611600] futex_wait_setup+0xb3/0x260 [ 41.615633] ? futex_wake+0x3c0/0x3c0 [ 41.619404] ? do_raw_spin_unlock+0x164/0x220 [ 41.623878] futex_wait+0x199/0x5a0 [ 41.627487] ? futex_wait_setup+0x260/0x260 [ 41.631799] ? lock_downgrade+0x740/0x740 [ 41.636008] ? wake_up_q+0x82/0xd0 [ 41.639525] ? drop_futex_key_refs+0x2e/0xa0 [ 41.643903] ? futex_wake+0x116/0x3c0 [ 41.647676] do_futex+0x1d8/0x1570 [ 41.651191] ? tty_fasync+0x2c0/0x2c0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 41.654976] ? proc_fail_nth_write+0x7b/0x180 [ 41.659445] ? trace_hardirqs_on+0x10/0x10 [ 41.663650] ? futex_exit_release+0x220/0x220 [ 41.668126] ? fsnotify+0x974/0x11b0 [ 41.671812] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 41.676715] ? __handle_mm_fault+0x80f/0x4620 [ 41.681188] ? tty_fasync+0x2c0/0x2c0 [ 41.684971] ? do_vfs_ioctl+0xe2/0xff0 [ 41.688856] ? lock_acquire+0x170/0x3f0 [ 41.692821] ? ioctl_preallocate+0x1a0/0x1a0 [ 41.697213] SyS_futex+0x1da/0x290 [ 41.700733] ? do_futex+0x1570/0x1570 [ 41.704514] ? security_file_ioctl+0x83/0xb0 [ 41.708907] ? fput_many+0xe/0x140 [ 41.712422] ? SyS_ioctl+0x5c/0xb0 [ 41.715937] ? do_futex+0x1570/0x1570 [ 41.719724] do_syscall_64+0x1d5/0x640 [ 41.723593] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 41.728757] RIP: 0033:0x7f4f3504c0d9 [ 41.732441] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 41.740120] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 41.747365] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 41.754608] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 41.761850] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 41.769094] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 41.841330] FAULT_INJECTION: forcing a failure. [ 41.841330] name fail_futex, interval 1, probability 0, space 0, times 0 [ 41.852736] CPU: 1 PID: 8068 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 41.860606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 41.869938] Call Trace: [ 41.872504] dump_stack+0x1b2/0x281 [ 41.876114] should_fail.cold+0x10a/0x149 [ 41.880237] get_futex_key+0x82a/0x11b0 [ 41.884186] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 41.888832] ? get_termio+0x240/0x240 [ 41.892606] futex_wake+0xc6/0x3c0 [ 41.896129] ? get_futex_key+0x11b0/0x11b0 [ 41.900346] ? n_tty_ioctl_helper+0x4c/0x350 [ 41.904753] do_futex+0x235/0x1570 [ 41.908269] ? tty_fasync+0x2c0/0x2c0 [ 41.912054] ? proc_fail_nth_write+0x7b/0x180 [ 41.916544] ? trace_hardirqs_on+0x10/0x10 [ 41.920766] ? futex_exit_release+0x220/0x220 [ 41.925240] ? fsnotify+0x974/0x11b0 [ 41.928929] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 41.933832] ? __handle_mm_fault+0x80f/0x4620 [ 41.938302] ? tty_fasync+0x2c0/0x2c0 [ 41.942087] ? do_vfs_ioctl+0xe2/0xff0 [ 41.945948] ? lock_acquire+0x170/0x3f0 [ 41.949897] ? ioctl_preallocate+0x1a0/0x1a0 [ 41.954278] SyS_futex+0x1da/0x290 [ 41.957793] ? do_futex+0x1570/0x1570 [ 41.961570] ? security_file_ioctl+0x83/0xb0 [ 41.965958] ? fput_many+0xe/0x140 [ 41.969479] ? SyS_ioctl+0x5c/0xb0 [ 41.973092] ? do_futex+0x1570/0x1570 [ 41.976962] do_syscall_64+0x1d5/0x640 [ 41.980837] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 41.986000] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 41.989681] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 41.997366] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 42.004615] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 42.011862] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 42.019120] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 42.026363] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 42.097594] FAULT_INJECTION: forcing a failure. [ 42.097594] name fail_futex, interval 1, probability 0, space 0, times 0 [ 42.108994] CPU: 0 PID: 8071 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 42.116849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.126182] Call Trace: [ 42.128757] dump_stack+0x1b2/0x281 [ 42.132363] should_fail.cold+0x10a/0x149 [ 42.136490] get_futex_key+0x82a/0x11b0 [ 42.140439] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 42.145093] ? get_termio+0x240/0x240 [ 42.148872] futex_wake+0xc6/0x3c0 [ 42.152392] ? get_futex_key+0x11b0/0x11b0 [ 42.156601] ? n_tty_ioctl_helper+0x4c/0x350 [ 42.160986] do_futex+0x235/0x1570 [ 42.164521] ? tty_fasync+0x2c0/0x2c0 [ 42.168292] ? proc_fail_nth_write+0x7b/0x180 [ 42.172760] ? trace_hardirqs_on+0x10/0x10 [ 42.176976] ? futex_exit_release+0x220/0x220 [ 42.181452] ? fsnotify+0x974/0x11b0 [ 42.185140] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 42.190043] ? __handle_mm_fault+0x80f/0x4620 [ 42.194512] ? tty_fasync+0x2c0/0x2c0 [ 42.198285] ? do_vfs_ioctl+0xe2/0xff0 [ 42.202155] ? lock_acquire+0x170/0x3f0 [ 42.206101] ? ioctl_preallocate+0x1a0/0x1a0 [ 42.210488] SyS_futex+0x1da/0x290 [ 42.214005] ? do_futex+0x1570/0x1570 [ 42.217778] ? security_file_ioctl+0x83/0xb0 [ 42.222160] ? fput_many+0xe/0x140 [ 42.225680] ? SyS_ioctl+0x5c/0xb0 [ 42.229195] ? do_futex+0x1570/0x1570 [ 42.232974] do_syscall_64+0x1d5/0x640 [ 42.236845] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 42.242011] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 42.245695] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 42.253377] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 42.260623] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 42.267870] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 42.275113] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 42.282358] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 42.354487] FAULT_INJECTION: forcing a failure. [ 42.354487] name fail_futex, interval 1, probability 0, space 0, times 0 [ 42.365882] CPU: 1 PID: 8074 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 42.373734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.383061] Call Trace: [ 42.385625] dump_stack+0x1b2/0x281 [ 42.389233] should_fail.cold+0x10a/0x149 [ 42.393353] ? cpuacct_charge+0x1cf/0x350 [ 42.397474] get_futex_key+0x82a/0x11b0 [ 42.401429] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 42.406161] ? check_preempt_wakeup+0x3b4/0xce0 [ 42.410802] futex_wait_setup+0xb3/0x260 [ 42.414841] ? futex_wake+0x3c0/0x3c0 [ 42.418616] ? do_raw_spin_unlock+0x164/0x220 [ 42.423082] futex_wait+0x199/0x5a0 [ 42.426776] ? futex_wait_setup+0x260/0x260 [ 42.431072] ? lock_downgrade+0x740/0x740 [ 42.435195] ? wake_up_q+0x82/0xd0 [ 42.438706] ? drop_futex_key_refs+0x2e/0xa0 [ 42.443088] ? futex_wake+0x116/0x3c0 [ 42.446863] do_futex+0x1d8/0x1570 [ 42.450380] ? tty_fasync+0x2c0/0x2c0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 42.454157] ? proc_fail_nth_write+0x7b/0x180 [ 42.458626] ? trace_hardirqs_on+0x10/0x10 [ 42.462841] ? futex_exit_release+0x220/0x220 [ 42.467341] ? fsnotify+0x974/0x11b0 [ 42.471035] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 42.475935] ? __handle_mm_fault+0x80f/0x4620 [ 42.480403] ? tty_fasync+0x2c0/0x2c0 [ 42.484175] ? do_vfs_ioctl+0xe2/0xff0 [ 42.488035] ? lock_acquire+0x170/0x3f0 [ 42.491979] ? ioctl_preallocate+0x1a0/0x1a0 [ 42.496363] SyS_futex+0x1da/0x290 [ 42.499878] ? do_futex+0x1570/0x1570 [ 42.503652] ? security_file_ioctl+0x83/0xb0 [ 42.508033] ? fput_many+0xe/0x140 [ 42.511544] ? SyS_ioctl+0x5c/0xb0 [ 42.515054] ? do_futex+0x1570/0x1570 [ 42.518834] do_syscall_64+0x1d5/0x640 [ 42.522698] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 42.527859] RIP: 0033:0x7f4f3504c0d9 [ 42.531541] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 42.539221] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 42.546524] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4f350cd498 executing program [ 42.553767] RBP: 00007f4f350cd490 R08: 0000000000000000 R09: 0000000000000000 [ 42.561094] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f350cd49c [ 42.568334] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 42.634180] FAULT_INJECTION: forcing a failure. [ 42.634180] name fail_futex, interval 1, probability 0, space 0, times 0 [ 42.645579] CPU: 0 PID: 8077 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 42.653438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.662765] Call Trace: [ 42.665331] dump_stack+0x1b2/0x281 [ 42.668933] should_fail.cold+0x10a/0x149 [ 42.673058] get_futex_key+0x82a/0x11b0 [ 42.677010] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 42.681651] ? get_termio+0x240/0x240 [ 42.685424] futex_wake+0xc6/0x3c0 [ 42.688939] ? get_futex_key+0x11b0/0x11b0 [ 42.693149] ? n_tty_ioctl_helper+0x4c/0x350 [ 42.697536] do_futex+0x235/0x1570 [ 42.701056] ? tty_fasync+0x2c0/0x2c0 [ 42.704829] ? proc_fail_nth_write+0x7b/0x180 [ 42.709299] ? trace_hardirqs_on+0x10/0x10 [ 42.713514] ? futex_exit_release+0x220/0x220 [ 42.717981] ? fsnotify+0x974/0x11b0 [ 42.721671] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 42.726576] ? __handle_mm_fault+0x80f/0x4620 [ 42.731043] ? tty_fasync+0x2c0/0x2c0 [ 42.735337] ? do_vfs_ioctl+0xe2/0xff0 [ 42.739201] ? lock_acquire+0x170/0x3f0 [ 42.743151] ? ioctl_preallocate+0x1a0/0x1a0 [ 42.747534] SyS_futex+0x1da/0x290 [ 42.751050] ? do_futex+0x1570/0x1570 [ 42.754826] ? security_file_ioctl+0x83/0xb0 [ 42.759214] ? fput_many+0xe/0x140 [ 42.762727] ? SyS_ioctl+0x5c/0xb0 [ 42.766239] ? do_futex+0x1570/0x1570 [ 42.770015] do_syscall_64+0x1d5/0x640 [ 42.773881] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 42.779043] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 42.782729] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 42.790411] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 42.797659] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 42.804989] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 42.812240] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 42.819489] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 42.892484] FAULT_INJECTION: forcing a failure. [ 42.892484] name fail_futex, interval 1, probability 0, space 0, times 0 [ 42.903866] CPU: 0 PID: 8080 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 42.911724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.921063] Call Trace: [ 42.923633] dump_stack+0x1b2/0x281 [ 42.927238] should_fail.cold+0x10a/0x149 [ 42.931364] get_futex_key+0x82a/0x11b0 [ 42.935341] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 42.939988] ? get_termio+0x240/0x240 [ 42.943764] futex_wake+0xc6/0x3c0 [ 42.947281] ? get_futex_key+0x11b0/0x11b0 [ 42.951497] ? n_tty_ioctl_helper+0x4c/0x350 [ 42.955885] do_futex+0x235/0x1570 [ 42.959416] ? tty_fasync+0x2c0/0x2c0 [ 42.963221] ? proc_fail_nth_write+0x7b/0x180 [ 42.967695] ? trace_hardirqs_on+0x10/0x10 [ 42.971907] ? futex_exit_release+0x220/0x220 [ 42.976384] ? fsnotify+0x974/0x11b0 [ 42.980080] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 42.984990] ? __handle_mm_fault+0x80f/0x4620 [ 42.989466] ? tty_fasync+0x2c0/0x2c0 [ 42.993243] ? do_vfs_ioctl+0xe2/0xff0 [ 42.997121] ? lock_acquire+0x170/0x3f0 [ 43.001073] ? ioctl_preallocate+0x1a0/0x1a0 [ 43.005545] SyS_futex+0x1da/0x290 [ 43.009065] ? do_futex+0x1570/0x1570 [ 43.012841] ? security_file_ioctl+0x83/0xb0 [ 43.017226] ? fput_many+0xe/0x140 [ 43.020740] ? SyS_ioctl+0x5c/0xb0 [ 43.024252] ? do_futex+0x1570/0x1570 [ 43.028027] do_syscall_64+0x1d5/0x640 [ 43.031894] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 43.037057] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 43.040743] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 43.048513] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 43.055759] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 43.063007] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 43.070257] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 43.077511] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 43.149108] FAULT_INJECTION: forcing a failure. [ 43.149108] name fail_futex, interval 1, probability 0, space 0, times 0 [ 43.160513] CPU: 0 PID: 8083 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 43.168376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 43.177814] Call Trace: [ 43.180396] dump_stack+0x1b2/0x281 [ 43.184005] should_fail.cold+0x10a/0x149 [ 43.188134] get_futex_key+0x82a/0x11b0 [ 43.192113] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 43.196761] ? get_termio+0x240/0x240 [ 43.200548] futex_wake+0xc6/0x3c0 [ 43.204066] ? get_futex_key+0x11b0/0x11b0 [ 43.208282] ? n_tty_ioctl_helper+0x4c/0x350 [ 43.212669] do_futex+0x235/0x1570 [ 43.216187] ? tty_fasync+0x2c0/0x2c0 [ 43.219967] ? proc_fail_nth_write+0x7b/0x180 [ 43.224442] ? trace_hardirqs_on+0x10/0x10 [ 43.228652] ? futex_exit_release+0x220/0x220 [ 43.233132] ? fsnotify+0x974/0x11b0 [ 43.236823] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 43.242374] ? __handle_mm_fault+0x80f/0x4620 [ 43.246931] ? tty_fasync+0x2c0/0x2c0 [ 43.250707] ? do_vfs_ioctl+0xe2/0xff0 [ 43.254570] ? lock_acquire+0x170/0x3f0 [ 43.258521] ? ioctl_preallocate+0x1a0/0x1a0 [ 43.262905] SyS_futex+0x1da/0x290 [ 43.266428] ? do_futex+0x1570/0x1570 [ 43.270206] ? security_file_ioctl+0x83/0xb0 [ 43.274587] ? fput_many+0xe/0x140 [ 43.278101] ? SyS_ioctl+0x5c/0xb0 [ 43.281617] ? do_futex+0x1570/0x1570 [ 43.285462] do_syscall_64+0x1d5/0x640 [ 43.289328] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 43.294492] RIP: 0033:0x7f4f3504c0d9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 43.298178] RSP: 002b:00007f4f34fd4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 43.305863] RAX: ffffffffffffffda RBX: 00007f4f350cd498 RCX: 00007f4f3504c0d9 [ 43.313111] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4f350cd49c [ 43.320360] RBP: 00007f4f350cd490 R08: 0000000000000032 R09: 0000000000000000 [ 43.327606] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f4f350cd49c [ 43.334851] R13: 00007ffe87f9a40f R14: 00007f4f34fd4300 R15: 0000000000022000 [ 43.406221] FAULT_INJECTION: forcing a failure. [ 43.406221] name fail_futex, interval 1, probability 0, space 0, times 0 [ 43.417625] CPU: 0 PID: 8086 Comm: syz-executor540 Not tainted 4.14.302-syzkaller #0 [ 43.425489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 43.435112] Call Trace: [ 43.437682] dump_stack+0x1b2/0x281 [ 43.441287] should_fail.cold+0x10a/0x149 [ 43.445411] get_futex_key+0x82a/0x11b0 [ 43.449361] ? futex_lock_pi_atomic+0x2e0/0x2e0