[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.919533] audit: type=1800 audit(1545697072.378:25): pid=7756 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.960778] audit: type=1800 audit(1545697072.388:26): pid=7756 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.991295] audit: type=1800 audit(1545697072.388:27): pid=7756 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 50.066449] FAULT_INJECTION: forcing a failure. [ 50.066449] name failslab, interval 1, probability 0, space 0, times 1 [ 50.077272] FAULT_INJECTION: forcing a failure. [ 50.077272] name failslab, interval 1, probability 0, space 0, times 1 [ 50.080862] CPU: 0 PID: 7910 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 50.089357] FAULT_INJECTION: forcing a failure. [ 50.089357] name failslab, interval 1, probability 0, space 0, times 1 [ 50.096112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.096118] Call Trace: [ 50.096140] dump_stack+0x1d3/0x2c6 [ 50.096161] ? dump_stack_print_info.cold.1+0x20/0x20 [ 50.096180] ? find_held_lock+0x36/0x1c0 [ 50.096202] should_fail.cold.4+0xa/0x17 [ 50.096229] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.111935] FAULT_INJECTION: forcing a failure. [ 50.111935] name failslab, interval 1, probability 0, space 0, times 1 [ 50.116765] ? graph_lock+0x270/0x270 [ 50.116785] ? print_usage_bug+0xc0/0xc0 [ 50.116803] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 50.116823] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 50.116847] ? kasan_check_write+0x14/0x20 [ 50.120489] FAULT_INJECTION: forcing a failure. [ 50.120489] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 50.123055] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 50.192106] ? graph_lock+0x270/0x270 [ 50.195911] ? wait_for_completion+0x8a0/0x8a0 [ 50.200506] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.206065] ? check_preemption_disabled+0x48/0x280 [ 50.211105] ? __lock_is_held+0xb5/0x140 [ 50.215186] __should_failslab+0x124/0x180 [ 50.219426] should_failslab+0x9/0x14 [ 50.223231] kmem_cache_alloc_trace+0x4b/0x750 [ 50.227828] __hw_addr_create_ex+0xb2/0x3f0 [ 50.232153] ? dev_mc_init+0x170/0x170 [ 50.236070] __hw_addr_add_ex+0x1ef/0x2b0 [ 50.240230] dev_addr_init+0x169/0x260 [ 50.244121] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 50.248446] ? kasan_unpoison_shadow+0x35/0x50 [ 50.253030] ? kasan_kmalloc+0xc7/0xe0 [ 50.256941] ? __kmalloc_node+0x50/0x70 [ 50.260924] alloc_netdev_mqs+0x21b/0xfe0 [ 50.265112] ? number+0x972/0xca0 [ 50.268569] ? x25_asy_connected+0x270/0x270 [ 50.272981] ? free_netdev+0x450/0x450 [ 50.276874] ? put_dec+0xf0/0xf0 [ 50.280247] ? format_decode+0x1b2/0xaf0 [ 50.284320] ? enable_ptr_key_workfn+0x30/0x30 [ 50.288902] ? graph_lock+0x270/0x270 [ 50.292739] ? trace_hardirqs_off+0xb8/0x310 [ 50.297159] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.302700] ? vsnprintf+0x20d/0x1b60 [ 50.306527] ? pointer+0x900/0x900 [ 50.310096] ? sprintf+0xb0/0xe0 [ 50.313471] ? scnprintf+0x130/0x130 [ 50.317194] ? __kasan_slab_free+0x119/0x150 [ 50.321614] x25_asy_open_tty+0x551/0x7e7 [ 50.325768] ? x25_asy_close_tty+0x220/0x220 [ 50.330184] ? down_write_nested+0x130/0x130 [ 50.334597] ? down_read+0x120/0x120 [ 50.338315] ? x25_asy_close_tty+0x220/0x220 [ 50.342731] tty_ldisc_open.isra.1+0x8b/0xe0 [ 50.347147] tty_set_ldisc+0x2dc/0x6a0 [ 50.351058] tty_ioctl+0x39d/0x17d0 [ 50.354695] ? tty_vhangup+0x30/0x30 [ 50.358418] ? get_pid_task+0xd6/0x1a0 [ 50.362313] ? lock_downgrade+0x900/0x900 [ 50.366468] ? check_preemption_disabled+0x48/0x280 [ 50.371493] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 50.376422] ? kasan_check_read+0x11/0x20 [ 50.380602] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 50.385877] ? rcu_softirq_qs+0x20/0x20 [ 50.389851] ? find_vpid+0xf0/0xf0 [ 50.393401] ? graph_lock+0x270/0x270 [ 50.397209] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.402752] ? proc_fail_nth_write+0x9e/0x210 [ 50.407250] ? proc_cwd_link+0x1d0/0x1d0 [ 50.411318] ? trace_hardirqs_off+0xb8/0x310 [ 50.415733] ? find_held_lock+0x36/0x1c0 [ 50.419809] ? vfs_write+0x2f3/0x560 [ 50.423528] ? tty_vhangup+0x30/0x30 [ 50.427265] do_vfs_ioctl+0x1de/0x1790 [ 50.431162] ? __lock_is_held+0xb5/0x140 [ 50.435234] ? ioctl_preallocate+0x300/0x300 [ 50.439650] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.445192] ? __fget_light+0x2e9/0x430 [ 50.449173] ? fget_raw+0x20/0x20 [ 50.452629] ? __sb_end_write+0xd9/0x110 [ 50.457181] ? do_syscall_64+0x9a/0x820 [ 50.461157] ? do_syscall_64+0x9a/0x820 [ 50.465140] ? lockdep_hardirqs_on+0x421/0x5c0 [ 50.469729] ? security_file_ioctl+0x94/0xc0 [ 50.474147] ksys_ioctl+0xa9/0xd0 [ 50.477613] __x64_sys_ioctl+0x73/0xb0 [ 50.481505] do_syscall_64+0x1b9/0x820 [ 50.485410] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.490794] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.495724] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.500576] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.505598] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.510619] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.515657] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.520521] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.525714] RIP: 0033:0x4410e9 [ 50.528911] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.547810] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.555519] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 50.562789] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 50.570072] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 50.577341] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 50.584614] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 50.591912] CPU: 1 PID: 7919 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 50.595734] FAULT_INJECTION: forcing a failure. [ 50.595734] name failslab, interval 1, probability 0, space 0, times 1 [ 50.598931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.598946] Call Trace: [ 50.622059] dump_stack+0x1d3/0x2c6 [ 50.625704] ? dump_stack_print_info.cold.1+0x20/0x20 [ 50.630928] should_fail.cold.4+0xa/0x17 [ 50.635000] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.640130] ? __lock_acquire+0x62f/0x4c20 [ 50.644387] ? mark_held_locks+0x130/0x130 [ 50.648641] ? mark_held_locks+0x130/0x130 [ 50.652894] ? mark_held_locks+0x130/0x130 [ 50.657141] ? print_usage_bug+0xc0/0xc0 [ 50.661218] ? print_usage_bug+0xc0/0xc0 [ 50.665285] ? ima_match_policy+0x848/0x1560 [ 50.669706] ? print_usage_bug+0xc0/0xc0 [ 50.673776] ? check_preemption_disabled+0x48/0x280 [ 50.678817] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.684363] ? should_fail+0x22d/0xd01 [ 50.688259] ? __lock_acquire+0x62f/0x4c20 [ 50.692503] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.697647] __alloc_pages_nodemask+0x366/0xea0 [ 50.702321] ? __lock_acquire+0x62f/0x4c20 [ 50.706568] ? graph_lock+0x270/0x270 [ 50.710379] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 50.715418] ? find_held_lock+0x36/0x1c0 [ 50.719507] ? ___might_sleep+0x1ed/0x300 [ 50.723681] ? trace_hardirqs_off+0xb8/0x310 [ 50.728101] cache_grow_begin+0x91/0x8c0 [ 50.732177] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.737742] ? check_preemption_disabled+0x48/0x280 [ 50.742802] kmem_cache_alloc_node_trace+0x670/0x740 [ 50.747906] ? is_bpf_text_address+0xd3/0x170 [ 50.752410] ? kernel_text_address+0x79/0xf0 [ 50.756838] __kmalloc_node+0x3c/0x70 [ 50.760660] kvmalloc_node+0x65/0xf0 [ 50.764395] alloc_netdev_mqs+0x17b/0xfe0 [ 50.768556] ? number+0x972/0xca0 [ 50.772020] ? x25_asy_connected+0x270/0x270 [ 50.776444] ? free_netdev+0x450/0x450 [ 50.780346] ? put_dec+0xf0/0xf0 [ 50.783733] ? format_decode+0x1b2/0xaf0 [ 50.787803] ? enable_ptr_key_workfn+0x30/0x30 [ 50.792395] ? graph_lock+0x270/0x270 [ 50.796208] ? trace_hardirqs_off+0xb8/0x310 [ 50.800636] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.806182] ? vsnprintf+0x20d/0x1b60 [ 50.809998] ? pointer+0x900/0x900 [ 50.813562] ? sprintf+0xb0/0xe0 [ 50.816940] ? scnprintf+0x130/0x130 [ 50.820666] ? __kasan_slab_free+0x119/0x150 [ 50.825095] x25_asy_open_tty+0x551/0x7e7 [ 50.829258] ? x25_asy_close_tty+0x220/0x220 [ 50.833676] ? down_write_nested+0x130/0x130 [ 50.838090] ? down_read+0x120/0x120 [ 50.841810] ? x25_asy_close_tty+0x220/0x220 [ 50.846229] tty_ldisc_open.isra.1+0x8b/0xe0 [ 50.850644] tty_set_ldisc+0x2dc/0x6a0 [ 50.854545] tty_ioctl+0x39d/0x17d0 [ 50.858189] ? tty_vhangup+0x30/0x30 [ 50.861913] ? get_pid_task+0xd6/0x1a0 [ 50.865814] ? lock_downgrade+0x900/0x900 [ 50.869970] ? check_preemption_disabled+0x48/0x280 [ 50.874999] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 50.879930] ? kasan_check_read+0x11/0x20 [ 50.884088] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 50.889372] ? rcu_softirq_qs+0x20/0x20 [ 50.893349] ? find_vpid+0xf0/0xf0 [ 50.896904] ? graph_lock+0x270/0x270 [ 50.900737] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.906282] ? proc_fail_nth_write+0x9e/0x210 [ 50.910786] ? proc_cwd_link+0x1d0/0x1d0 [ 50.914858] ? trace_hardirqs_off+0xb8/0x310 [ 50.919279] ? find_held_lock+0x36/0x1c0 [ 50.923359] ? vfs_write+0x2f3/0x560 [ 50.927090] ? tty_vhangup+0x30/0x30 [ 50.930811] do_vfs_ioctl+0x1de/0x1790 [ 50.934709] ? __lock_is_held+0xb5/0x140 [ 50.938797] ? ioctl_preallocate+0x300/0x300 [ 50.943228] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.948773] ? __fget_light+0x2e9/0x430 [ 50.952754] ? fget_raw+0x20/0x20 [ 50.956217] ? __sb_end_write+0xd9/0x110 [ 50.960293] ? do_syscall_64+0x9a/0x820 [ 50.964272] ? do_syscall_64+0x9a/0x820 [ 50.968259] ? lockdep_hardirqs_on+0x421/0x5c0 [ 50.972848] ? security_file_ioctl+0x94/0xc0 [ 50.977267] ksys_ioctl+0xa9/0xd0 [ 50.980734] __x64_sys_ioctl+0x73/0xb0 [ 50.984638] do_syscall_64+0x1b9/0x820 [ 50.988530] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.993912] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.998844] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.003737] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.008807] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.013833] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.018871] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.023730] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.028937] RIP: 0033:0x4410e9 [ 51.032136] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.051049] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.058763] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 51.066037] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 51.073324] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 51.080595] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 51.087870] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 51.095170] CPU: 0 PID: 7917 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 51.102213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.111564] Call Trace: [ 51.114160] dump_stack+0x1d3/0x2c6 [ 51.117801] ? dump_stack_print_info.cold.1+0x20/0x20 [ 51.123002] ? find_held_lock+0x36/0x1c0 [ 51.127089] should_fail.cold.4+0xa/0x17 [ 51.131190] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.136299] ? graph_lock+0x270/0x270 [ 51.140113] ? print_usage_bug+0xc0/0xc0 [ 51.144213] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 51.149255] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 51.155087] ? kasan_check_write+0x14/0x20 [ 51.159330] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 51.164277] ? graph_lock+0x270/0x270 [ 51.168093] ? wait_for_completion+0x8a0/0x8a0 [ 51.172691] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.178238] ? check_preemption_disabled+0x48/0x280 [ 51.183273] ? __lock_is_held+0xb5/0x140 [ 51.187352] __should_failslab+0x124/0x180 [ 51.191594] should_failslab+0x9/0x14 [ 51.195402] kmem_cache_alloc_trace+0x4b/0x750 [ 51.200002] __hw_addr_create_ex+0xb2/0x3f0 [ 51.204331] ? dev_mc_init+0x170/0x170 [ 51.208235] __hw_addr_add_ex+0x1ef/0x2b0 [ 51.212401] dev_addr_init+0x169/0x260 [ 51.216296] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 51.220624] ? kasan_unpoison_shadow+0x35/0x50 [ 51.225213] ? kasan_kmalloc+0xc7/0xe0 [ 51.229113] ? __kmalloc_node+0x50/0x70 [ 51.233104] alloc_netdev_mqs+0x21b/0xfe0 [ 51.237260] ? number+0x972/0xca0 [ 51.240723] ? x25_asy_connected+0x270/0x270 [ 51.245146] ? free_netdev+0x450/0x450 [ 51.249058] ? put_dec+0xf0/0xf0 [ 51.252436] ? format_decode+0x1b2/0xaf0 [ 51.256521] ? enable_ptr_key_workfn+0x30/0x30 [ 51.261156] ? graph_lock+0x270/0x270 [ 51.264967] ? trace_hardirqs_off+0xb8/0x310 [ 51.269388] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.274935] ? vsnprintf+0x20d/0x1b60 [ 51.278751] ? pointer+0x900/0x900 [ 51.282311] ? sprintf+0xb0/0xe0 [ 51.285683] ? scnprintf+0x130/0x130 [ 51.289409] ? __kasan_slab_free+0x119/0x150 [ 51.293829] x25_asy_open_tty+0x551/0x7e7 [ 51.297997] ? x25_asy_close_tty+0x220/0x220 [ 51.302416] ? down_write_nested+0x130/0x130 [ 51.306827] ? down_read+0x120/0x120 [ 51.310549] ? x25_asy_close_tty+0x220/0x220 [ 51.314977] tty_ldisc_open.isra.1+0x8b/0xe0 [ 51.319396] tty_set_ldisc+0x2dc/0x6a0 [ 51.323300] tty_ioctl+0x39d/0x17d0 [ 51.326936] ? tty_vhangup+0x30/0x30 [ 51.330660] ? get_pid_task+0xd6/0x1a0 [ 51.334555] ? lock_downgrade+0x900/0x900 [ 51.338707] ? check_preemption_disabled+0x48/0x280 [ 51.343732] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 51.348665] ? kasan_check_read+0x11/0x20 [ 51.352849] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 51.358127] ? rcu_softirq_qs+0x20/0x20 [ 51.362104] ? find_vpid+0xf0/0xf0 [ 51.365662] ? graph_lock+0x270/0x270 [ 51.369476] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 51.375015] ? proc_fail_nth_write+0x9e/0x210 [ 51.379531] ? proc_cwd_link+0x1d0/0x1d0 [ 51.383599] ? trace_hardirqs_off+0xb8/0x310 [ 51.388016] ? find_held_lock+0x36/0x1c0 [ 51.392110] ? vfs_write+0x2f3/0x560 [ 51.395841] ? tty_vhangup+0x30/0x30 [ 51.399564] do_vfs_ioctl+0x1de/0x1790 [ 51.403461] ? __lock_is_held+0xb5/0x140 [ 51.407549] ? ioctl_preallocate+0x300/0x300 [ 51.411967] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.417509] ? __fget_light+0x2e9/0x430 [ 51.421492] ? fget_raw+0x20/0x20 [ 51.424954] ? __sb_end_write+0xd9/0x110 [ 51.429027] ? do_syscall_64+0x9a/0x820 [ 51.433023] ? do_syscall_64+0x9a/0x820 [ 51.437021] ? lockdep_hardirqs_on+0x421/0x5c0 [ 51.441624] ? security_file_ioctl+0x94/0xc0 [ 51.446065] ksys_ioctl+0xa9/0xd0 [ 51.449533] __x64_sys_ioctl+0x73/0xb0 [ 51.453430] do_syscall_64+0x1b9/0x820 [ 51.457780] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.463156] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.468090] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.472944] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.477965] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.482989] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.488020] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.492891] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.498085] RIP: 0033:0x4410e9 [ 51.501284] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.520193] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.527908] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 51.535180] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 51.542451] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 51.549723] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 51.556993] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 51.564294] CPU: 1 PID: 7915 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 51.571322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.580706] Call Trace: [ 51.583305] dump_stack+0x1d3/0x2c6 [ 51.586954] ? dump_stack_print_info.cold.1+0x20/0x20 [ 51.592665] ? find_held_lock+0x36/0x1c0 [ 51.596742] should_fail.cold.4+0xa/0x17 [ 51.600815] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.606026] ? graph_lock+0x270/0x270 [ 51.609852] ? print_usage_bug+0xc0/0xc0 [ 51.613922] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 51.618952] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 51.624766] ? kasan_check_write+0x14/0x20 [ 51.629009] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 51.633960] ? graph_lock+0x270/0x270 [ 51.637769] ? wait_for_completion+0x8a0/0x8a0 [ 51.642365] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.647910] ? check_preemption_disabled+0x48/0x280 [ 51.652947] ? __lock_is_held+0xb5/0x140 [ 51.657094] __should_failslab+0x124/0x180 [ 51.661338] should_failslab+0x9/0x14 [ 51.665155] kmem_cache_alloc_trace+0x4b/0x750 [ 51.669759] __hw_addr_create_ex+0xb2/0x3f0 [ 51.674096] ? dev_mc_init+0x170/0x170 [ 51.678005] __hw_addr_add_ex+0x1ef/0x2b0 [ 51.682197] dev_addr_init+0x169/0x260 [ 51.686094] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 51.690423] ? kasan_unpoison_shadow+0x35/0x50 [ 51.695014] ? kasan_kmalloc+0xc7/0xe0 [ 51.698924] ? __kmalloc_node+0x50/0x70 [ 51.702916] alloc_netdev_mqs+0x21b/0xfe0 [ 51.707078] ? number+0x972/0xca0 [ 51.710542] ? x25_asy_connected+0x270/0x270 [ 51.714969] ? free_netdev+0x450/0x450 [ 51.718864] ? put_dec+0xf0/0xf0 [ 51.722238] ? format_decode+0x1b2/0xaf0 [ 51.726315] ? enable_ptr_key_workfn+0x30/0x30 [ 51.730908] ? graph_lock+0x270/0x270 [ 51.734715] ? trace_hardirqs_off+0xb8/0x310 [ 51.739143] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.744703] ? vsnprintf+0x20d/0x1b60 [ 51.748519] ? pointer+0x900/0x900 [ 51.752120] ? sprintf+0xb0/0xe0 [ 51.755498] ? scnprintf+0x130/0x130 [ 51.759225] ? __kasan_slab_free+0x119/0x150 [ 51.763645] x25_asy_open_tty+0x551/0x7e7 [ 51.767796] ? x25_asy_close_tty+0x220/0x220 [ 51.772214] ? down_write_nested+0x130/0x130 [ 51.776629] ? down_read+0x120/0x120 [ 51.780351] ? x25_asy_close_tty+0x220/0x220 [ 51.784813] tty_ldisc_open.isra.1+0x8b/0xe0 [ 51.789228] tty_set_ldisc+0x2dc/0x6a0 [ 51.793141] tty_ioctl+0x39d/0x17d0 [ 51.796780] ? tty_vhangup+0x30/0x30 [ 51.800524] ? get_pid_task+0xd6/0x1a0 [ 51.804425] ? lock_downgrade+0x900/0x900 [ 51.808585] ? check_preemption_disabled+0x48/0x280 [ 51.813615] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 51.818547] ? kasan_check_read+0x11/0x20 [ 51.822708] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 51.827995] ? rcu_softirq_qs+0x20/0x20 [ 51.831975] ? find_vpid+0xf0/0xf0 [ 51.835538] ? graph_lock+0x270/0x270 [ 51.839361] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 51.844906] ? proc_fail_nth_write+0x9e/0x210 [ 51.849412] ? proc_cwd_link+0x1d0/0x1d0 [ 51.853484] ? trace_hardirqs_off+0xb8/0x310 [ 51.857905] ? find_held_lock+0x36/0x1c0 [ 51.861982] ? vfs_write+0x2f3/0x560 [ 51.865706] ? tty_vhangup+0x30/0x30 [ 51.869427] do_vfs_ioctl+0x1de/0x1790 executing program [ 51.873326] ? __lock_is_held+0xb5/0x140 [ 51.877408] ? ioctl_preallocate+0x300/0x300 [ 51.881829] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.887391] ? __fget_light+0x2e9/0x430 [ 51.891385] ? fget_raw+0x20/0x20 [ 51.894856] ? __sb_end_write+0xd9/0x110 [ 51.896721] FAULT_INJECTION: forcing a failure. [ 51.896721] name failslab, interval 1, probability 0, space 0, times 0 [ 51.898937] ? do_syscall_64+0x9a/0x820 [ 51.898953] ? do_syscall_64+0x9a/0x820 [ 51.898971] ? lockdep_hardirqs_on+0x421/0x5c0 [ 51.898997] ? security_file_ioctl+0x94/0xc0 [ 51.927104] ksys_ioctl+0xa9/0xd0 [ 51.930602] __x64_sys_ioctl+0x73/0xb0 [ 51.934517] do_syscall_64+0x1b9/0x820 [ 51.938432] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.943832] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.948784] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.953649] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.958681] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.963735] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.968800] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.973657] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.978846] RIP: 0033:0x4410e9 [ 51.982057] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.000979] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.008690] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 52.015968] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 52.023239] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 52.030531] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 52.037805] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 52.045105] CPU: 0 PID: 7916 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 52.052125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.061520] Call Trace: [ 52.064112] dump_stack+0x1d3/0x2c6 [ 52.067763] ? dump_stack_print_info.cold.1+0x20/0x20 [ 52.072973] ? find_held_lock+0x36/0x1c0 [ 52.077063] should_fail.cold.4+0xa/0x17 [ 52.081136] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 52.086246] ? graph_lock+0x270/0x270 [ 52.090071] ? print_usage_bug+0xc0/0xc0 [ 52.094142] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.099171] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 52.104989] ? kasan_check_write+0x14/0x20 [ 52.109232] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 52.114173] ? graph_lock+0x270/0x270 [ 52.117978] ? wait_for_completion+0x8a0/0x8a0 [ 52.122573] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.128119] ? check_preemption_disabled+0x48/0x280 [ 52.133152] ? __lock_is_held+0xb5/0x140 [ 52.137233] __should_failslab+0x124/0x180 [ 52.141473] should_failslab+0x9/0x14 [ 52.145286] kmem_cache_alloc_trace+0x4b/0x750 [ 52.149889] __hw_addr_create_ex+0xb2/0x3f0 [ 52.154219] ? dev_mc_init+0x170/0x170 [ 52.158127] __hw_addr_add_ex+0x1ef/0x2b0 [ 52.162288] dev_addr_init+0x169/0x260 [ 52.166195] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 52.170529] ? kasan_unpoison_shadow+0x35/0x50 [ 52.175116] ? kasan_kmalloc+0xc7/0xe0 [ 52.179014] ? __kmalloc_node+0x50/0x70 [ 52.183017] alloc_netdev_mqs+0x21b/0xfe0 [ 52.187186] ? number+0x972/0xca0 [ 52.190648] ? x25_asy_connected+0x270/0x270 [ 52.195079] ? free_netdev+0x450/0x450 [ 52.198977] ? put_dec+0xf0/0xf0 [ 52.202349] ? format_decode+0x1b2/0xaf0 [ 52.206422] ? enable_ptr_key_workfn+0x30/0x30 [ 52.211007] ? graph_lock+0x270/0x270 [ 52.214829] ? trace_hardirqs_off+0xb8/0x310 [ 52.219252] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.224797] ? vsnprintf+0x20d/0x1b60 [ 52.228614] ? pointer+0x900/0x900 [ 52.232180] ? sprintf+0xb0/0xe0 [ 52.235552] ? scnprintf+0x130/0x130 [ 52.239275] ? __kasan_slab_free+0x119/0x150 [ 52.243696] x25_asy_open_tty+0x551/0x7e7 [ 52.247854] ? x25_asy_close_tty+0x220/0x220 [ 52.252273] ? down_write_nested+0x130/0x130 [ 52.256690] ? down_read+0x120/0x120 [ 52.260411] ? x25_asy_close_tty+0x220/0x220 [ 52.264829] tty_ldisc_open.isra.1+0x8b/0xe0 [ 52.269248] tty_set_ldisc+0x2dc/0x6a0 [ 52.273152] tty_ioctl+0x39d/0x17d0 [ 52.276789] ? tty_vhangup+0x30/0x30 [ 52.280545] ? get_pid_task+0xd6/0x1a0 [ 52.284436] ? lock_downgrade+0x900/0x900 [ 52.288621] ? check_preemption_disabled+0x48/0x280 [ 52.293648] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 52.298582] ? kasan_check_read+0x11/0x20 [ 52.302776] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 52.308072] ? rcu_softirq_qs+0x20/0x20 [ 52.312070] ? find_vpid+0xf0/0xf0 [ 52.315654] ? graph_lock+0x270/0x270 [ 52.319473] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 52.325082] ? proc_fail_nth_write+0x9e/0x210 [ 52.329589] ? proc_cwd_link+0x1d0/0x1d0 [ 52.333674] ? trace_hardirqs_off+0xb8/0x310 [ 52.338163] ? find_held_lock+0x36/0x1c0 [ 52.342239] ? vfs_write+0x2f3/0x560 [ 52.345978] ? tty_vhangup+0x30/0x30 [ 52.349700] do_vfs_ioctl+0x1de/0x1790 [ 52.353595] ? __lock_is_held+0xb5/0x140 [ 52.357668] ? ioctl_preallocate+0x300/0x300 [ 52.362095] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.367637] ? __fget_light+0x2e9/0x430 [ 52.371637] ? fget_raw+0x20/0x20 [ 52.375100] ? __sb_end_write+0xd9/0x110 [ 52.379176] ? do_syscall_64+0x9a/0x820 [ 52.383172] ? do_syscall_64+0x9a/0x820 [ 52.387157] ? lockdep_hardirqs_on+0x421/0x5c0 [ 52.391749] ? security_file_ioctl+0x94/0xc0 [ 52.396169] ksys_ioctl+0xa9/0xd0 [ 52.399639] __x64_sys_ioctl+0x73/0xb0 [ 52.403539] do_syscall_64+0x1b9/0x820 [ 52.407429] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 52.412805] ? syscall_return_slowpath+0x5e0/0x5e0 [ 52.417769] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.422654] ? trace_hardirqs_on_caller+0x310/0x310 [ 52.427695] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.432737] ? prepare_exit_to_usermode+0x291/0x3b0 [ 52.437780] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.442632] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.447843] RIP: 0033:0x4410e9 [ 52.451050] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.469963] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.477680] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 52.484961] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 52.492230] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 52.499504] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 52.506774] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 52.514122] CPU: 1 PID: 7918 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 52.521148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.530501] Call Trace: [ 52.533098] dump_stack+0x1d3/0x2c6 [ 52.536765] ? dump_stack_print_info.cold.1+0x20/0x20 [ 52.541961] ? find_held_lock+0x36/0x1c0 [ 52.546038] should_fail.cold.4+0xa/0x17 [ 52.550126] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 52.555239] ? graph_lock+0x270/0x270 [ 52.559060] ? print_usage_bug+0xc0/0xc0 [ 52.563144] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.568173] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 52.573993] ? kasan_check_write+0x14/0x20 [ 52.578239] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 52.583180] ? graph_lock+0x270/0x270 [ 52.586993] ? wait_for_completion+0x8a0/0x8a0 [ 52.591596] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.597143] ? check_preemption_disabled+0x48/0x280 [ 52.602179] ? __lock_is_held+0xb5/0x140 [ 52.606287] __should_failslab+0x124/0x180 [ 52.610529] should_failslab+0x9/0x14 [ 52.614341] kmem_cache_alloc_trace+0x4b/0x750 [ 52.618945] __hw_addr_create_ex+0xb2/0x3f0 [ 52.623278] ? dev_mc_init+0x170/0x170 [ 52.627181] __hw_addr_add_ex+0x1ef/0x2b0 [ 52.631343] dev_addr_init+0x169/0x260 [ 52.635241] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 52.639577] ? kasan_unpoison_shadow+0x35/0x50 [ 52.644168] ? kasan_kmalloc+0xc7/0xe0 [ 52.648075] ? __kmalloc_node+0x50/0x70 [ 52.652093] alloc_netdev_mqs+0x21b/0xfe0 [ 52.656249] ? number+0x972/0xca0 [ 52.659719] ? x25_asy_connected+0x270/0x270 [ 52.664137] ? free_netdev+0x450/0x450 [ 52.668035] ? put_dec+0xf0/0xf0 [ 52.671422] ? format_decode+0x1b2/0xaf0 [ 52.675498] ? enable_ptr_key_workfn+0x30/0x30 [ 52.680102] ? graph_lock+0x270/0x270 [ 52.683916] ? trace_hardirqs_off+0xb8/0x310 [ 52.688339] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.693887] ? vsnprintf+0x20d/0x1b60 [ 52.697752] ? pointer+0x900/0x900 [ 52.701338] ? sprintf+0xb0/0xe0 [ 52.704728] ? scnprintf+0x130/0x130 [ 52.708450] ? __kasan_slab_free+0x119/0x150 [ 52.712878] x25_asy_open_tty+0x551/0x7e7 [ 52.717033] ? x25_asy_close_tty+0x220/0x220 [ 52.721467] ? down_write_nested+0x130/0x130 [ 52.725911] ? down_read+0x120/0x120 [ 52.729632] ? x25_asy_close_tty+0x220/0x220 [ 52.734059] tty_ldisc_open.isra.1+0x8b/0xe0 [ 52.738482] tty_set_ldisc+0x2dc/0x6a0 [ 52.742387] tty_ioctl+0x39d/0x17d0 [ 52.746034] ? tty_vhangup+0x30/0x30 [ 52.749788] ? get_pid_task+0xd6/0x1a0 [ 52.753683] ? lock_downgrade+0x900/0x900 [ 52.757842] ? check_preemption_disabled+0x48/0x280 [ 52.762866] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 52.767816] ? kasan_check_read+0x11/0x20 [ 52.771974] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 52.777270] ? rcu_softirq_qs+0x20/0x20 [ 52.781252] ? find_vpid+0xf0/0xf0 [ 52.784805] ? graph_lock+0x270/0x270 [ 52.788618] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 52.794161] ? proc_fail_nth_write+0x9e/0x210 [ 52.798664] ? proc_cwd_link+0x1d0/0x1d0 [ 52.802768] ? trace_hardirqs_off+0xb8/0x310 [ 52.807184] ? find_held_lock+0x36/0x1c0 [ 52.811263] ? vfs_write+0x2f3/0x560 [ 52.814991] ? tty_vhangup+0x30/0x30 [ 52.818714] do_vfs_ioctl+0x1de/0x1790 [ 52.822608] ? __lock_is_held+0xb5/0x140 [ 52.826707] ? ioctl_preallocate+0x300/0x300 [ 52.831139] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.836681] ? __fget_light+0x2e9/0x430 [ 52.840661] ? fget_raw+0x20/0x20 [ 52.844142] ? __sb_end_write+0xd9/0x110 [ 52.848216] ? do_syscall_64+0x9a/0x820 [ 52.852194] ? do_syscall_64+0x9a/0x820 [ 52.856175] ? lockdep_hardirqs_on+0x421/0x5c0 [ 52.860784] ? security_file_ioctl+0x94/0xc0 [ 52.865207] ksys_ioctl+0xa9/0xd0 [ 52.868674] __x64_sys_ioctl+0x73/0xb0 [ 52.872579] do_syscall_64+0x1b9/0x820 [ 52.876473] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 52.881845] ? syscall_return_slowpath+0x5e0/0x5e0 [ 52.886783] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.891642] ? trace_hardirqs_on_caller+0x310/0x310 [ 52.896691] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.901712] ? prepare_exit_to_usermode+0x291/0x3b0 [ 52.906741] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.911600] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.916791] RIP: 0033:0x4410e9 [ 52.919990] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.938895] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.946609] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 52.953878] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 52.961153] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 52.968426] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff executing program [ 52.975713] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 52.983021] CPU: 0 PID: 7920 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 52.990099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.999132] FAULT_INJECTION: forcing a failure. [ 52.999132] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 52.999497] Call Trace: [ 53.013856] dump_stack+0x1d3/0x2c6 [ 53.017491] ? dump_stack_print_info.cold.1+0x20/0x20 [ 53.022703] ? find_held_lock+0x36/0x1c0 [ 53.026771] should_fail.cold.4+0xa/0x17 [ 53.030839] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.035975] ? graph_lock+0x270/0x270 [ 53.039781] ? print_usage_bug+0xc0/0xc0 [ 53.043849] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 53.048889] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 53.054698] ? kasan_check_write+0x14/0x20 [ 53.058937] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 53.063874] ? graph_lock+0x270/0x270 [ 53.067693] ? wait_for_completion+0x8a0/0x8a0 [ 53.072281] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.077838] ? check_preemption_disabled+0x48/0x280 [ 53.082886] ? __lock_is_held+0xb5/0x140 [ 53.086963] __should_failslab+0x124/0x180 [ 53.091219] should_failslab+0x9/0x14 [ 53.095022] kmem_cache_alloc_trace+0x4b/0x750 [ 53.099650] __hw_addr_create_ex+0xb2/0x3f0 [ 53.103979] ? dev_mc_init+0x170/0x170 [ 53.107883] __hw_addr_add_ex+0x1ef/0x2b0 [ 53.112048] dev_addr_init+0x169/0x260 [ 53.115949] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 53.120272] ? kasan_unpoison_shadow+0x35/0x50 [ 53.124855] ? kasan_kmalloc+0xc7/0xe0 [ 53.128750] ? __kmalloc_node+0x50/0x70 [ 53.132738] alloc_netdev_mqs+0x21b/0xfe0 [ 53.136889] ? number+0x972/0xca0 [ 53.140347] ? x25_asy_connected+0x270/0x270 [ 53.144757] ? free_netdev+0x450/0x450 [ 53.148649] ? put_dec+0xf0/0xf0 [ 53.152017] ? format_decode+0x1b2/0xaf0 [ 53.156109] ? enable_ptr_key_workfn+0x30/0x30 [ 53.160693] ? graph_lock+0x270/0x270 [ 53.164508] ? trace_hardirqs_off+0xb8/0x310 [ 53.168929] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.174474] ? vsnprintf+0x20d/0x1b60 [ 53.178291] ? pointer+0x900/0x900 [ 53.181847] ? sprintf+0xb0/0xe0 [ 53.185218] ? scnprintf+0x130/0x130 [ 53.188939] ? __kasan_slab_free+0x119/0x150 [ 53.193360] x25_asy_open_tty+0x551/0x7e7 [ 53.197514] ? x25_asy_close_tty+0x220/0x220 [ 53.201928] ? down_write_nested+0x130/0x130 [ 53.206337] ? down_read+0x120/0x120 [ 53.210072] ? x25_asy_close_tty+0x220/0x220 [ 53.214490] tty_ldisc_open.isra.1+0x8b/0xe0 [ 53.218900] tty_set_ldisc+0x2dc/0x6a0 [ 53.222822] tty_ioctl+0x39d/0x17d0 [ 53.226451] ? tty_vhangup+0x30/0x30 [ 53.230172] ? get_pid_task+0xd6/0x1a0 [ 53.234071] ? lock_downgrade+0x900/0x900 [ 53.238237] ? check_preemption_disabled+0x48/0x280 [ 53.243265] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 53.248194] ? kasan_check_read+0x11/0x20 [ 53.252347] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 53.257627] ? rcu_softirq_qs+0x20/0x20 [ 53.261615] ? find_vpid+0xf0/0xf0 [ 53.265167] ? graph_lock+0x270/0x270 [ 53.268979] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.274517] ? proc_fail_nth_write+0x9e/0x210 [ 53.279057] ? proc_cwd_link+0x1d0/0x1d0 [ 53.283133] ? trace_hardirqs_off+0xb8/0x310 [ 53.287551] ? find_held_lock+0x36/0x1c0 [ 53.291630] ? vfs_write+0x2f3/0x560 [ 53.295353] ? tty_vhangup+0x30/0x30 [ 53.299080] do_vfs_ioctl+0x1de/0x1790 [ 53.302982] ? __lock_is_held+0xb5/0x140 [ 53.307063] ? ioctl_preallocate+0x300/0x300 [ 53.311483] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.317065] ? __fget_light+0x2e9/0x430 [ 53.321058] ? fget_raw+0x20/0x20 [ 53.324519] ? __sb_end_write+0xd9/0x110 [ 53.328665] ? do_syscall_64+0x9a/0x820 [ 53.332657] ? do_syscall_64+0x9a/0x820 [ 53.336639] ? lockdep_hardirqs_on+0x421/0x5c0 [ 53.341227] ? security_file_ioctl+0x94/0xc0 [ 53.345641] ksys_ioctl+0xa9/0xd0 [ 53.349102] __x64_sys_ioctl+0x73/0xb0 [ 53.353010] do_syscall_64+0x1b9/0x820 [ 53.356927] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 53.362295] ? syscall_return_slowpath+0x5e0/0x5e0 [ 53.367224] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.372083] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.377106] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.382134] ? prepare_exit_to_usermode+0x291/0x3b0 [ 53.387164] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.392022] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.397228] RIP: 0033:0x4410e9 [ 53.400425] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.419322] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 53.427034] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 53.434322] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 53.441592] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 53.448873] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 53.456626] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 53.463931] CPU: 1 PID: 7922 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 53.470952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.472329] FAULT_INJECTION: forcing a failure. [ 53.472329] name failslab, interval 1, probability 0, space 0, times 0 [ 53.480303] Call Trace: [ 53.480324] dump_stack+0x1d3/0x2c6 [ 53.480346] ? dump_stack_print_info.cold.1+0x20/0x20 [ 53.480373] should_fail.cold.4+0xa/0x17 [ 53.480392] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.480410] ? __lock_acquire+0x62f/0x4c20 [ 53.480445] ? mark_held_locks+0x130/0x130 [ 53.520622] ? mark_held_locks+0x130/0x130 [ 53.524870] ? mark_held_locks+0x130/0x130 [ 53.529134] ? print_usage_bug+0xc0/0xc0 [ 53.533208] ? print_usage_bug+0xc0/0xc0 [ 53.537277] ? ima_match_policy+0x848/0x1560 [ 53.541721] ? print_usage_bug+0xc0/0xc0 [ 53.545793] ? check_preemption_disabled+0x48/0x280 [ 53.550817] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.556355] ? should_fail+0x22d/0xd01 [ 53.560254] ? __lock_acquire+0x62f/0x4c20 [ 53.564499] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.569617] __alloc_pages_nodemask+0x366/0xea0 [ 53.574297] ? __lock_acquire+0x62f/0x4c20 [ 53.578540] ? graph_lock+0x270/0x270 [ 53.582361] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 53.587396] ? find_held_lock+0x36/0x1c0 [ 53.591971] ? ___might_sleep+0x1ed/0x300 [ 53.596131] ? trace_hardirqs_off+0xb8/0x310 [ 53.600559] cache_grow_begin+0x91/0x8c0 [ 53.604630] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.610176] ? check_preemption_disabled+0x48/0x280 [ 53.615212] kmem_cache_alloc_node_trace+0x670/0x740 [ 53.620347] ? is_bpf_text_address+0xd3/0x170 [ 53.624885] ? kernel_text_address+0x79/0xf0 [ 53.629307] __kmalloc_node+0x3c/0x70 [ 53.633112] kvmalloc_node+0x65/0xf0 [ 53.633131] alloc_netdev_mqs+0x17b/0xfe0 [ 53.633146] ? number+0x972/0xca0 [ 53.633163] ? x25_asy_connected+0x270/0x270 [ 53.633178] ? free_netdev+0x450/0x450 [ 53.633197] ? put_dec+0xf0/0xf0 [ 53.644563] ? format_decode+0x1b2/0xaf0 [ 53.644586] ? enable_ptr_key_workfn+0x30/0x30 [ 53.644600] ? graph_lock+0x270/0x270 [ 53.644623] ? trace_hardirqs_off+0xb8/0x310 [ 53.652936] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.652953] ? vsnprintf+0x20d/0x1b60 [ 53.652976] ? pointer+0x900/0x900 [ 53.653030] ? sprintf+0xb0/0xe0 [ 53.668824] ? scnprintf+0x130/0x130 [ 53.668844] ? __kasan_slab_free+0x119/0x150 [ 53.668867] x25_asy_open_tty+0x551/0x7e7 [ 53.668888] ? x25_asy_close_tty+0x220/0x220 [ 53.686129] ? down_write_nested+0x130/0x130 [ 53.686145] ? down_read+0x120/0x120 [ 53.686163] ? x25_asy_close_tty+0x220/0x220 [ 53.686179] tty_ldisc_open.isra.1+0x8b/0xe0 [ 53.686196] tty_set_ldisc+0x2dc/0x6a0 [ 53.693268] tty_ioctl+0x39d/0x17d0 executing program [ 53.706192] ? tty_vhangup+0x30/0x30 [ 53.706213] ? get_pid_task+0xd6/0x1a0 [ 53.706231] ? lock_downgrade+0x900/0x900 [ 53.706250] ? check_preemption_disabled+0x48/0x280 [ 53.723172] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 53.723186] ? kasan_check_read+0x11/0x20 [ 53.723202] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 53.723217] ? rcu_softirq_qs+0x20/0x20 [ 53.723234] ? find_vpid+0xf0/0xf0 [ 53.730752] ? graph_lock+0x270/0x270 [ 53.730773] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.730788] ? proc_fail_nth_write+0x9e/0x210 [ 53.730803] ? proc_cwd_link+0x1d0/0x1d0 [ 53.730822] ? trace_hardirqs_off+0xb8/0x310 [ 53.730842] ? find_held_lock+0x36/0x1c0 [ 53.730868] ? vfs_write+0x2f3/0x560 [ 53.738469] ? tty_vhangup+0x30/0x30 [ 53.738488] do_vfs_ioctl+0x1de/0x1790 [ 53.738505] ? __lock_is_held+0xb5/0x140 [ 53.738541] ? ioctl_preallocate+0x300/0x300 [ 53.752663] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.752695] ? __fget_light+0x2e9/0x430 [ 53.752713] ? fget_raw+0x20/0x20 [ 53.752730] ? __sb_end_write+0xd9/0x110 [ 53.752783] ? do_syscall_64+0x9a/0x820 [ 53.762178] ? do_syscall_64+0x9a/0x820 [ 53.762196] ? lockdep_hardirqs_on+0x421/0x5c0 [ 53.762213] ? security_file_ioctl+0x94/0xc0 [ 53.762234] ksys_ioctl+0xa9/0xd0 [ 53.762255] __x64_sys_ioctl+0x73/0xb0 [ 53.762272] do_syscall_64+0x1b9/0x820 [ 53.762287] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 53.762305] ? syscall_return_slowpath+0x5e0/0x5e0 [ 53.788833] FAULT_INJECTION: forcing a failure. [ 53.788833] name failslab, interval 1, probability 0, space 0, times 0 [ 53.792052] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.792072] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.792090] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.792108] ? prepare_exit_to_usermode+0x291/0x3b0 [ 53.792129] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.792152] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.792164] RIP: 0033:0x4410e9 [ 53.792181] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.934394] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.942108] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 53.949378] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 53.956679] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 53.963949] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 53.971221] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 executing program [ 53.978518] CPU: 0 PID: 7925 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 53.985538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.993512] FAULT_INJECTION: forcing a failure. [ 53.993512] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 53.994902] Call Trace: [ 54.009263] dump_stack+0x1d3/0x2c6 [ 54.012902] ? dump_stack_print_info.cold.1+0x20/0x20 [ 54.018098] ? __kernel_text_address+0xd/0x40 [ 54.022627] ? unwind_get_return_address+0x61/0xa0 [ 54.027596] should_fail.cold.4+0xa/0x17 [ 54.031665] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.036778] ? save_stack+0x43/0xd0 [ 54.040407] ? kasan_kmalloc+0xc7/0xe0 [ 54.044295] ? __kmalloc+0x15b/0x770 [ 54.048011] ? x25_asy_open_tty+0x32a/0x7e7 [ 54.052349] ? tty_ldisc_open.isra.1+0x8b/0xe0 [ 54.056954] ? graph_lock+0x270/0x270 [ 54.060769] ? ksys_ioctl+0xa9/0xd0 [ 54.064397] ? __x64_sys_ioctl+0x73/0xb0 [ 54.068465] ? do_syscall_64+0x1b9/0x820 [ 54.072543] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.077922] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 54.082862] ? find_held_lock+0x36/0x1c0 [ 54.086932] ? __lock_is_held+0xb5/0x140 [ 54.091009] ? ___might_sleep+0x1ed/0x300 [ 54.095173] ? arch_local_save_flags+0x40/0x40 [ 54.099769] __should_failslab+0x124/0x180 [ 54.104029] should_failslab+0x9/0x14 [ 54.107844] __kmalloc+0x2e0/0x770 [ 54.111391] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.116935] ? x25_asy_open_tty+0x372/0x7e7 [ 54.121262] x25_asy_open_tty+0x372/0x7e7 [ 54.125413] ? x25_asy_close_tty+0x220/0x220 [ 54.129823] ? up_write+0x7b/0x220 [ 54.133367] ? down_write_nested+0x130/0x130 [ 54.137775] ? down_read+0x120/0x120 [ 54.141493] ? x25_asy_close_tty+0x220/0x220 [ 54.145912] tty_ldisc_open.isra.1+0x8b/0xe0 [ 54.150325] tty_set_ldisc+0x2dc/0x6a0 [ 54.154231] tty_ioctl+0x39d/0x17d0 [ 54.157877] ? tty_vhangup+0x30/0x30 [ 54.161603] ? get_pid_task+0xd6/0x1a0 [ 54.165497] ? lock_downgrade+0x900/0x900 [ 54.169650] ? check_preemption_disabled+0x48/0x280 [ 54.174701] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 54.179628] ? kasan_check_read+0x11/0x20 [ 54.183779] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 54.189072] ? rcu_softirq_qs+0x20/0x20 [ 54.193067] ? find_vpid+0xf0/0xf0 [ 54.196622] ? graph_lock+0x270/0x270 [ 54.200430] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 54.205969] ? proc_fail_nth_write+0x9e/0x210 [ 54.210466] ? proc_cwd_link+0x1d0/0x1d0 [ 54.214537] ? trace_hardirqs_off+0xb8/0x310 [ 54.218957] ? find_held_lock+0x36/0x1c0 [ 54.223030] ? vfs_write+0x2f3/0x560 [ 54.226766] ? tty_vhangup+0x30/0x30 [ 54.230489] do_vfs_ioctl+0x1de/0x1790 [ 54.234381] ? __lock_is_held+0xb5/0x140 [ 54.238453] ? ioctl_preallocate+0x300/0x300 [ 54.242871] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.248411] ? __fget_light+0x2e9/0x430 [ 54.252394] ? fget_raw+0x20/0x20 [ 54.255852] ? __sb_end_write+0xd9/0x110 [ 54.259935] ? do_syscall_64+0x9a/0x820 [ 54.263911] ? do_syscall_64+0x9a/0x820 [ 54.267903] ? lockdep_hardirqs_on+0x421/0x5c0 [ 54.272492] ? security_file_ioctl+0x94/0xc0 [ 54.276912] ksys_ioctl+0xa9/0xd0 [ 54.280389] __x64_sys_ioctl+0x73/0xb0 [ 54.284314] do_syscall_64+0x1b9/0x820 [ 54.288205] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 54.293572] ? syscall_return_slowpath+0x5e0/0x5e0 [ 54.298506] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.303357] ? trace_hardirqs_on_caller+0x310/0x310 [ 54.308381] ? prepare_exit_to_usermode+0x291/0x3b0 [ 54.313408] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.318259] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.323453] RIP: 0033:0x4410e9 [ 54.326650] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.345554] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.353266] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 54.360534] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 54.367816] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 54.375085] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 54.382357] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 54.389655] CPU: 1 PID: 7923 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 54.396674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.406026] Call Trace: [ 54.408632] dump_stack+0x1d3/0x2c6 [ 54.412277] ? dump_stack_print_info.cold.1+0x20/0x20 [ 54.417483] should_fail.cold.4+0xa/0x17 [ 54.421562] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.426680] ? __lock_acquire+0x62f/0x4c20 [ 54.430948] ? mark_held_locks+0x130/0x130 [ 54.435197] ? mark_held_locks+0x130/0x130 [ 54.439445] ? mark_held_locks+0x130/0x130 [ 54.443693] ? print_usage_bug+0xc0/0xc0 [ 54.447765] ? print_usage_bug+0xc0/0xc0 [ 54.451834] ? update_load_avg+0x2470/0x2470 [ 54.456265] ? print_usage_bug+0xc0/0xc0 [ 54.460330] ? __enqueue_entity+0x10d/0x1f0 [ 54.464662] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.470204] ? should_fail+0x22d/0xd01 [ 54.474104] ? __lock_acquire+0x62f/0x4c20 [ 54.478351] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.483468] __alloc_pages_nodemask+0x366/0xea0 [ 54.488145] ? __lock_acquire+0x62f/0x4c20 [ 54.492402] ? graph_lock+0x270/0x270 [ 54.496214] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 54.501247] ? find_held_lock+0x36/0x1c0 [ 54.505338] ? ___might_sleep+0x1ed/0x300 [ 54.509498] ? trace_hardirqs_off+0xb8/0x310 [ 54.513920] cache_grow_begin+0x91/0x8c0 [ 54.518003] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.523557] ? check_preemption_disabled+0x48/0x280 [ 54.528606] kmem_cache_alloc_node_trace+0x670/0x740 [ 54.533713] ? is_bpf_text_address+0xd3/0x170 [ 54.538260] ? kernel_text_address+0x79/0xf0 [ 54.542692] __kmalloc_node+0x3c/0x70 [ 54.546520] kvmalloc_node+0x65/0xf0 [ 54.550274] alloc_netdev_mqs+0x17b/0xfe0 [ 54.554430] ? number+0x972/0xca0 [ 54.557894] ? x25_asy_connected+0x270/0x270 [ 54.562313] ? free_netdev+0x450/0x450 [ 54.566210] ? put_dec+0xf0/0xf0 [ 54.569585] ? format_decode+0x1b2/0xaf0 [ 54.573656] ? enable_ptr_key_workfn+0x30/0x30 [ 54.578245] ? graph_lock+0x270/0x270 [ 54.582065] ? trace_hardirqs_off+0xb8/0x310 [ 54.586477] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.592028] ? vsnprintf+0x20d/0x1b60 [ 54.595879] ? pointer+0x900/0x900 [ 54.599439] ? sprintf+0xb0/0xe0 [ 54.602815] ? scnprintf+0x130/0x130 [ 54.606547] ? __kasan_slab_free+0x119/0x150 [ 54.610994] x25_asy_open_tty+0x551/0x7e7 [ 54.615153] ? x25_asy_close_tty+0x220/0x220 [ 54.619576] ? down_write_nested+0x130/0x130 [ 54.624009] ? down_read+0x120/0x120 [ 54.627763] ? x25_asy_close_tty+0x220/0x220 [ 54.632189] tty_ldisc_open.isra.1+0x8b/0xe0 [ 54.636605] tty_set_ldisc+0x2dc/0x6a0 [ 54.640510] tty_ioctl+0x39d/0x17d0 [ 54.644153] ? tty_vhangup+0x30/0x30 [ 54.647874] ? get_pid_task+0xd6/0x1a0 [ 54.651778] ? lock_downgrade+0x900/0x900 [ 54.655935] ? check_preemption_disabled+0x48/0x280 [ 54.660963] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 54.665896] ? kasan_check_read+0x11/0x20 [ 54.670064] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 54.675350] ? rcu_softirq_qs+0x20/0x20 [ 54.679329] ? find_vpid+0xf0/0xf0 [ 54.682887] ? graph_lock+0x270/0x270 executing program [ 54.686705] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 54.692251] ? proc_fail_nth_write+0x9e/0x210 [ 54.696752] ? proc_cwd_link+0x1d0/0x1d0 [ 54.700819] ? trace_hardirqs_off+0xb8/0x310 [ 54.705264] ? find_held_lock+0x36/0x1c0 [ 54.709356] ? vfs_write+0x2f3/0x560 [ 54.713085] ? tty_vhangup+0x30/0x30 [ 54.716808] do_vfs_ioctl+0x1de/0x1790 [ 54.720703] ? __lock_is_held+0xb5/0x140 [ 54.724784] ? ioctl_preallocate+0x300/0x300 [ 54.729205] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.734761] ? __fget_light+0x2e9/0x430 [ 54.736120] FAULT_INJECTION: forcing a failure. [ 54.736120] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 54.738744] ? fget_raw+0x20/0x20 [ 54.753967] ? __sb_end_write+0xd9/0x110 [ 54.758052] ? do_syscall_64+0x9a/0x820 [ 54.762033] ? do_syscall_64+0x9a/0x820 [ 54.766027] ? lockdep_hardirqs_on+0x421/0x5c0 [ 54.770626] ? security_file_ioctl+0x94/0xc0 [ 54.775051] ksys_ioctl+0xa9/0xd0 [ 54.778518] __x64_sys_ioctl+0x73/0xb0 [ 54.782417] do_syscall_64+0x1b9/0x820 [ 54.786305] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 54.791677] ? syscall_return_slowpath+0x5e0/0x5e0 [ 54.796611] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.801460] ? trace_hardirqs_on_caller+0x310/0x310 [ 54.806484] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 54.811505] ? prepare_exit_to_usermode+0x291/0x3b0 [ 54.816534] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.821392] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.826584] RIP: 0033:0x4410e9 [ 54.829779] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.848682] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.856390] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 54.863658] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 54.870929] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 54.878198] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff executing program [ 54.885470] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 54.892766] CPU: 0 PID: 7927 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 54.899782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.908723] FAULT_INJECTION: forcing a failure. [ 54.908723] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 54.909146] Call Trace: [ 54.923517] dump_stack+0x1d3/0x2c6 [ 54.927156] ? dump_stack_print_info.cold.1+0x20/0x20 [ 54.932365] should_fail.cold.4+0xa/0x17 [ 54.936436] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.941550] ? __lock_acquire+0x62f/0x4c20 [ 54.945805] ? mark_held_locks+0x130/0x130 [ 54.950066] ? mark_held_locks+0x130/0x130 [ 54.954316] ? mark_held_locks+0x130/0x130 [ 54.958560] ? print_usage_bug+0xc0/0xc0 [ 54.962622] ? print_usage_bug+0xc0/0xc0 [ 54.966688] ? ima_match_policy+0x848/0x1560 [ 54.971116] ? print_usage_bug+0xc0/0xc0 [ 54.975184] ? check_preemption_disabled+0x48/0x280 [ 54.980205] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.985746] ? should_fail+0x22d/0xd01 [ 54.989640] ? __lock_acquire+0x62f/0x4c20 [ 54.993879] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.998993] __alloc_pages_nodemask+0x366/0xea0 [ 55.003666] ? __lock_acquire+0x62f/0x4c20 [ 55.007909] ? graph_lock+0x270/0x270 [ 55.011716] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 55.016743] ? find_held_lock+0x36/0x1c0 [ 55.020826] ? ___might_sleep+0x1ed/0x300 [ 55.024990] ? trace_hardirqs_off+0xb8/0x310 [ 55.029439] cache_grow_begin+0x91/0x8c0 [ 55.033515] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.039085] ? check_preemption_disabled+0x48/0x280 [ 55.044125] kmem_cache_alloc_node_trace+0x670/0x740 [ 55.049229] ? is_bpf_text_address+0xd3/0x170 [ 55.053742] ? kernel_text_address+0x79/0xf0 [ 55.058160] __kmalloc_node+0x3c/0x70 [ 55.061965] kvmalloc_node+0x65/0xf0 [ 55.065680] alloc_netdev_mqs+0x17b/0xfe0 [ 55.069825] ? number+0x972/0xca0 [ 55.073282] ? x25_asy_connected+0x270/0x270 [ 55.077695] ? free_netdev+0x450/0x450 [ 55.081587] ? put_dec+0xf0/0xf0 [ 55.084952] ? format_decode+0x1b2/0xaf0 [ 55.089019] ? enable_ptr_key_workfn+0x30/0x30 [ 55.093615] ? graph_lock+0x270/0x270 [ 55.097440] ? trace_hardirqs_off+0xb8/0x310 [ 55.101863] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.107406] ? vsnprintf+0x20d/0x1b60 [ 55.111221] ? pointer+0x900/0x900 [ 55.114777] ? sprintf+0xb0/0xe0 [ 55.118151] ? scnprintf+0x130/0x130 [ 55.121873] ? __kasan_slab_free+0x119/0x150 [ 55.126296] x25_asy_open_tty+0x551/0x7e7 [ 55.130454] ? x25_asy_close_tty+0x220/0x220 [ 55.134867] ? down_write_nested+0x130/0x130 [ 55.139291] ? down_read+0x120/0x120 [ 55.143010] ? x25_asy_close_tty+0x220/0x220 [ 55.147434] tty_ldisc_open.isra.1+0x8b/0xe0 [ 55.151847] tty_set_ldisc+0x2dc/0x6a0 [ 55.155769] tty_ioctl+0x39d/0x17d0 [ 55.159401] ? tty_vhangup+0x30/0x30 [ 55.163127] ? get_pid_task+0xd6/0x1a0 [ 55.167023] ? lock_downgrade+0x900/0x900 [ 55.171188] ? check_preemption_disabled+0x48/0x280 [ 55.176211] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 55.181145] ? kasan_check_read+0x11/0x20 [ 55.185295] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 55.190579] ? rcu_softirq_qs+0x20/0x20 [ 55.194553] ? find_vpid+0xf0/0xf0 [ 55.198112] ? graph_lock+0x270/0x270 [ 55.201920] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.207464] ? proc_fail_nth_write+0x9e/0x210 [ 55.211963] ? proc_cwd_link+0x1d0/0x1d0 [ 55.216028] ? trace_hardirqs_off+0xb8/0x310 [ 55.220460] ? find_held_lock+0x36/0x1c0 [ 55.224533] ? vfs_write+0x2f3/0x560 [ 55.228253] ? tty_vhangup+0x30/0x30 [ 55.231970] do_vfs_ioctl+0x1de/0x1790 [ 55.235865] ? __lock_is_held+0xb5/0x140 [ 55.239935] ? ioctl_preallocate+0x300/0x300 [ 55.244346] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.249885] ? __fget_light+0x2e9/0x430 [ 55.253868] ? fget_raw+0x20/0x20 [ 55.257329] ? __sb_end_write+0xd9/0x110 [ 55.261401] ? do_syscall_64+0x9a/0x820 [ 55.265383] ? do_syscall_64+0x9a/0x820 [ 55.269382] ? lockdep_hardirqs_on+0x421/0x5c0 [ 55.273983] ? security_file_ioctl+0x94/0xc0 [ 55.278398] ksys_ioctl+0xa9/0xd0 [ 55.281861] __x64_sys_ioctl+0x73/0xb0 [ 55.285757] do_syscall_64+0x1b9/0x820 [ 55.289648] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 55.295015] ? syscall_return_slowpath+0x5e0/0x5e0 [ 55.299959] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.304807] ? trace_hardirqs_on_caller+0x310/0x310 [ 55.309846] ? prepare_exit_to_usermode+0x291/0x3b0 [ 55.314870] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.319725] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.324915] RIP: 0033:0x4410e9 [ 55.328112] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.347016] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.354736] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 55.362003] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 55.369272] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 55.376542] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 55.383809] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 55.391108] CPU: 1 PID: 7926 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 55.398128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.407482] Call Trace: [ 55.410088] dump_stack+0x1d3/0x2c6 [ 55.413730] ? dump_stack_print_info.cold.1+0x20/0x20 [ 55.418937] should_fail.cold.4+0xa/0x17 [ 55.423014] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.428142] ? __lock_acquire+0x62f/0x4c20 [ 55.432397] ? mark_held_locks+0x130/0x130 [ 55.436648] ? mark_held_locks+0x130/0x130 [ 55.440897] ? mark_held_locks+0x130/0x130 [ 55.445148] ? print_usage_bug+0xc0/0xc0 [ 55.449222] ? print_usage_bug+0xc0/0xc0 [ 55.453292] ? ima_match_policy+0x848/0x1560 [ 55.457833] ? print_usage_bug+0xc0/0xc0 [ 55.461902] ? check_preemption_disabled+0x48/0x280 [ 55.466927] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.472474] ? should_fail+0x22d/0xd01 [ 55.476370] ? __lock_acquire+0x62f/0x4c20 [ 55.480616] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.485733] __alloc_pages_nodemask+0x366/0xea0 [ 55.490414] ? __lock_acquire+0x62f/0x4c20 [ 55.494660] ? graph_lock+0x270/0x270 [ 55.498473] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 55.503507] ? find_held_lock+0x36/0x1c0 [ 55.507602] ? ___might_sleep+0x1ed/0x300 [ 55.511766] ? trace_hardirqs_off+0xb8/0x310 [ 55.516188] cache_grow_begin+0x91/0x8c0 [ 55.520260] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.520719] ================================================================== [ 55.525806] ? check_preemption_disabled+0x48/0x280 [ 55.525831] kmem_cache_alloc_node_trace+0x670/0x740 [ 55.533256] BUG: KASAN: double-free or invalid-free in x25_asy_free+0x37/0x140 [ 55.538259] ? is_bpf_text_address+0xd3/0x170 [ 55.543338] [ 55.550695] ? kernel_text_address+0x79/0xf0 [ 55.561192] __kmalloc_node+0x3c/0x70 [ 55.564998] kvmalloc_node+0x65/0xf0 [ 55.568720] alloc_netdev_mqs+0x17b/0xfe0 [ 55.572872] ? number+0x972/0xca0 [ 55.576330] ? x25_asy_connected+0x270/0x270 [ 55.580742] ? free_netdev+0x450/0x450 [ 55.584637] ? put_dec+0xf0/0xf0 [ 55.588495] ? format_decode+0x1b2/0xaf0 [ 55.592571] ? enable_ptr_key_workfn+0x30/0x30 [ 55.597161] ? graph_lock+0x270/0x270 [ 55.600967] ? trace_hardirqs_off+0xb8/0x310 [ 55.605387] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.610933] ? vsnprintf+0x20d/0x1b60 [ 55.614748] ? pointer+0x900/0x900 [ 55.618305] ? sprintf+0xb0/0xe0 [ 55.621678] ? scnprintf+0x130/0x130 [ 55.625398] ? __kasan_slab_free+0x119/0x150 [ 55.629819] x25_asy_open_tty+0x551/0x7e7 [ 55.633976] ? x25_asy_close_tty+0x220/0x220 [ 55.638392] ? down_write_nested+0x130/0x130 [ 55.642803] ? down_read+0x120/0x120 [ 55.646524] ? x25_asy_close_tty+0x220/0x220 [ 55.650942] tty_ldisc_open.isra.1+0x8b/0xe0 [ 55.655360] tty_set_ldisc+0x2dc/0x6a0 [ 55.659259] tty_ioctl+0x39d/0x17d0 [ 55.662893] ? tty_vhangup+0x30/0x30 [ 55.666617] ? get_pid_task+0xd6/0x1a0 [ 55.670511] ? lock_downgrade+0x900/0x900 [ 55.674665] ? check_preemption_disabled+0x48/0x280 [ 55.679689] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 55.684618] ? kasan_check_read+0x11/0x20 [ 55.688771] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 55.694064] ? rcu_softirq_qs+0x20/0x20 [ 55.698054] ? find_vpid+0xf0/0xf0 [ 55.701608] ? graph_lock+0x270/0x270 [ 55.705423] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.710966] ? proc_fail_nth_write+0x9e/0x210 [ 55.715465] ? proc_cwd_link+0x1d0/0x1d0 [ 55.719534] ? trace_hardirqs_off+0xb8/0x310 [ 55.723961] ? find_held_lock+0x36/0x1c0 [ 55.728039] ? vfs_write+0x2f3/0x560 [ 55.731772] ? tty_vhangup+0x30/0x30 [ 55.735493] do_vfs_ioctl+0x1de/0x1790 [ 55.739384] ? __lock_is_held+0xb5/0x140 [ 55.743455] ? ioctl_preallocate+0x300/0x300 [ 55.747868] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.753411] ? __fget_light+0x2e9/0x430 [ 55.757390] ? fget_raw+0x20/0x20 [ 55.760850] ? __sb_end_write+0xd9/0x110 [ 55.764923] ? do_syscall_64+0x9a/0x820 [ 55.768904] ? do_syscall_64+0x9a/0x820 [ 55.772883] ? lockdep_hardirqs_on+0x421/0x5c0 [ 55.777468] ? security_file_ioctl+0x94/0xc0 [ 55.781883] ksys_ioctl+0xa9/0xd0 [ 55.785349] __x64_sys_ioctl+0x73/0xb0 [ 55.789244] do_syscall_64+0x1b9/0x820 [ 55.793136] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 55.798505] ? syscall_return_slowpath+0x5e0/0x5e0 [ 55.803441] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.808292] ? trace_hardirqs_on_caller+0x310/0x310 [ 55.813312] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 55.818333] ? prepare_exit_to_usermode+0x291/0x3b0 [ 55.823358] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.828210] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.833402] RIP: 0033:0x4410e9 [ 55.836597] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.855499] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.863212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 55.870480] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 55.877754] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 55.885024] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 55.892304] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 55.899601] CPU: 0 PID: 7925 Comm: syz-executor081 Not tainted 4.20.0 #387 [ 55.906624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.915980] Call Trace: [ 55.918584] dump_stack+0x1d3/0x2c6 [ 55.922232] ? dump_stack_print_info.cold.1+0x20/0x20 [ 55.927431] ? printk+0xa7/0xcf [ 55.930722] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 55.935484] ? debug_check_no_obj_freed+0x305/0x58d [ 55.940522] print_address_description.cold.8+0x9/0x1ff [ 55.945895] ? x25_asy_free+0x37/0x140 [ 55.949796] kasan_report_invalid_free+0x64/0xa0 [ 55.954567] ? x25_asy_free+0x37/0x140 [ 55.958462] __kasan_slab_free+0x13a/0x150 [ 55.962710] ? x25_asy_free+0x37/0x140 [ 55.966611] kasan_slab_free+0xe/0x10 [ 55.970425] kfree+0xcf/0x230 [ 55.973543] x25_asy_free+0x37/0x140 [ 55.977270] x25_asy_open_tty+0x6ad/0x7e7 [ 55.981432] ? x25_asy_close_tty+0x220/0x220 [ 55.985851] ? up_write+0x7b/0x220 [ 55.989408] ? down_write_nested+0x130/0x130 [ 55.993829] ? down_read+0x120/0x120 [ 55.997557] ? x25_asy_close_tty+0x220/0x220 [ 56.001976] tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.006401] tty_set_ldisc+0x2dc/0x6a0 [ 56.010307] tty_ioctl+0x39d/0x17d0 [ 56.013948] ? tty_vhangup+0x30/0x30 [ 56.017677] ? get_pid_task+0xd6/0x1a0 [ 56.021578] ? lock_downgrade+0x900/0x900 [ 56.025734] ? check_preemption_disabled+0x48/0x280 [ 56.030768] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 56.035708] ? kasan_check_read+0x11/0x20 [ 56.039865] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 56.045165] ? rcu_softirq_qs+0x20/0x20 [ 56.049168] ? find_vpid+0xf0/0xf0 [ 56.052733] ? graph_lock+0x270/0x270 [ 56.056554] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 56.062105] ? proc_fail_nth_write+0x9e/0x210 [ 56.066609] ? proc_cwd_link+0x1d0/0x1d0 [ 56.070689] ? trace_hardirqs_off+0xb8/0x310 [ 56.075115] ? find_held_lock+0x36/0x1c0 [ 56.079201] ? vfs_write+0x2f3/0x560 [ 56.082927] ? tty_vhangup+0x30/0x30 [ 56.082946] do_vfs_ioctl+0x1de/0x1790 [ 56.082963] ? __lock_is_held+0xb5/0x140 [ 56.082989] ? ioctl_preallocate+0x300/0x300 [ 56.090636] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.090653] ? __fget_light+0x2e9/0x430 [ 56.090685] ? fget_raw+0x20/0x20 [ 56.090702] ? __sb_end_write+0xd9/0x110 [ 56.090725] ? do_syscall_64+0x9a/0x820 [ 56.090744] ? do_syscall_64+0x9a/0x820 [ 56.099219] ? lockdep_hardirqs_on+0x421/0x5c0 [ 56.099252] ? security_file_ioctl+0x94/0xc0 [ 56.099272] ksys_ioctl+0xa9/0xd0 [ 56.099295] __x64_sys_ioctl+0x73/0xb0 [ 56.108789] do_syscall_64+0x1b9/0x820 [ 56.108804] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 56.108823] ? syscall_return_slowpath+0x5e0/0x5e0 [ 56.108837] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.108857] ? trace_hardirqs_on_caller+0x310/0x310 [ 56.116359] ? prepare_exit_to_usermode+0x291/0x3b0 [ 56.116395] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.116417] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.116428] RIP: 0033:0x4410e9 executing program [ 56.116445] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.120577] kobject: 'queues' (000000001e78d271): kobject_uevent_env: filter function caused the event to drop! [ 56.124376] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 56.124390] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 56.124400] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 56.124409] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 56.124418] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 56.124426] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 56.124447] [ 56.129135] kobject: 'rx-0' (00000000b3577da5): kobject_add_internal: parent: 'queues', set: 'queues' [ 56.133400] Allocated by task 7925: [ 56.133414] save_stack+0x43/0xd0 [ 56.133426] kasan_kmalloc+0xc7/0xe0 [ 56.133440] __kmalloc+0x15b/0x770 [ 56.133452] x25_asy_open_tty+0x32a/0x7e7 [ 56.133465] tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.133476] tty_set_ldisc+0x2dc/0x6a0 [ 56.133494] tty_ioctl+0x39d/0x17d0 [ 56.137120] kobject: 'rx-0' (00000000b3577da5): kobject_uevent_env [ 56.140825] do_vfs_ioctl+0x1de/0x1790 [ 56.140838] ksys_ioctl+0xa9/0xd0 [ 56.140852] __x64_sys_ioctl+0x73/0xb0 [ 56.140866] do_syscall_64+0x1b9/0x820 [ 56.140879] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.140883] [ 56.140889] Freed by task 7925: [ 56.140901] save_stack+0x43/0xd0 [ 56.140917] __kasan_slab_free+0x102/0x150 [ 56.144960] kobject: 'rx-0' (00000000b3577da5): fill_kobj_path: path = '/devices/virtual/net/x25asy1/queues/rx-0' [ 56.150170] kasan_slab_free+0xe/0x10 [ 56.150180] kfree+0xcf/0x230 [ 56.150208] x25_asy_open_tty+0x6a0/0x7e7 [ 56.150220] tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.150232] tty_set_ldisc+0x2dc/0x6a0 [ 56.150245] tty_ioctl+0x39d/0x17d0 [ 56.150258] do_vfs_ioctl+0x1de/0x1790 [ 56.150275] ksys_ioctl+0xa9/0xd0 [ 56.155383] kobject: 'tx-0' (00000000ae272600): kobject_add_internal: parent: 'queues', set: 'queues' [ 56.160026] __x64_sys_ioctl+0x73/0xb0 [ 56.160048] do_syscall_64+0x1b9/0x820 [ 56.160068] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.160072] [ 56.160082] The buggy address belongs to the object at ffff8881afc12000 [ 56.160082] which belongs to the cache kmalloc-1k of size 1024 [ 56.160095] The buggy address is located 0 bytes inside of [ 56.160095] 1024-byte region [ffff8881afc12000, ffff8881afc12400) [ 56.160099] The buggy address belongs to the page: [ 56.160117] page:ffffea0006bf0480 count:1 mapcount:0 mapping:ffff8881da800ac0 index:0x0 compound_mapcount: 0 [ 56.165436] kobject: 'tx-0' (00000000ae272600): kobject_uevent_env [ 56.170139] flags: 0x2fffc0000010200(slab|head) [ 56.170158] raw: 02fffc0000010200 ffffea0007511e08 ffffea0007551288 ffff8881da800ac0 [ 56.170176] raw: 0000000000000000 ffff8881afc12000 0000000100000007 0000000000000000 [ 56.170182] page dumped because: kasan: bad access detected [ 56.170186] [ 56.170191] Memory state around the buggy address: [ 56.170203] ffff8881afc11f00: fb fb fb fb fb fb fc fc fc fc fb fb fb fb fb fb [ 56.170213] ffff8881afc11f80: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc [ 56.170225] >ffff8881afc12000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 56.175192] kobject: 'tx-0' (00000000ae272600): fill_kobj_path: path = '/devices/virtual/net/x25asy1/queues/tx-0' [ 56.180239] ^ [ 56.180251] ffff8881afc12080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 56.180262] ffff8881afc12100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 56.180268] ================================================================== [ 56.180273] Disabling lock debugging due to kernel taint [ 56.180280] Kernel panic - not syncing: panic_on_warn set ... [ 56.180295] CPU: 0 PID: 7925 Comm: syz-executor081 Tainted: G B 4.20.0 #387 [ 56.180309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.185408] x25_asy: x25_asy_alloc(): register_netdev() failure [ 56.202375] Call Trace: [ 56.202394] dump_stack+0x1d3/0x2c6 [ 56.202412] ? dump_stack_print_info.cold.1+0x20/0x20 [ 56.202436] ? x25_asy_data_transmit+0x620/0x6e0 [ 56.217096] FAULT_INJECTION: forcing a failure. [ 56.217096] name failslab, interval 1, probability 0, space 0, times 0 [ 56.220352] panic+0x2ad/0x55c [ 56.220368] ? add_taint.cold.5+0x16/0x16 [ 56.220385] ? add_taint.cold.5+0x5/0x16 [ 56.220405] ? trace_hardirqs_off+0xaf/0x310 [ 56.616217] ? x25_asy_free+0x37/0x140 [ 56.620112] kasan_end_report+0x47/0x4f [ 56.624093] kasan_report_invalid_free+0x81/0xa0 [ 56.628852] ? x25_asy_free+0x37/0x140 [ 56.632738] __kasan_slab_free+0x13a/0x150 [ 56.636977] ? x25_asy_free+0x37/0x140 [ 56.640869] kasan_slab_free+0xe/0x10 [ 56.644667] kfree+0xcf/0x230 [ 56.647773] x25_asy_free+0x37/0x140 [ 56.651489] x25_asy_open_tty+0x6ad/0x7e7 [ 56.655637] ? x25_asy_close_tty+0x220/0x220 [ 56.660066] ? up_write+0x7b/0x220 [ 56.663612] ? down_write_nested+0x130/0x130 [ 56.668020] ? down_read+0x120/0x120 [ 56.671754] ? x25_asy_close_tty+0x220/0x220 [ 56.676164] tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.680571] tty_set_ldisc+0x2dc/0x6a0 [ 56.684464] tty_ioctl+0x39d/0x17d0 [ 56.688102] ? tty_vhangup+0x30/0x30 [ 56.691819] ? get_pid_task+0xd6/0x1a0 [ 56.695726] ? lock_downgrade+0x900/0x900 [ 56.699880] ? check_preemption_disabled+0x48/0x280 [ 56.704918] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 56.709858] ? kasan_check_read+0x11/0x20 [ 56.714005] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 56.719286] ? rcu_softirq_qs+0x20/0x20 [ 56.723260] ? find_vpid+0xf0/0xf0 [ 56.726807] ? graph_lock+0x270/0x270 [ 56.730614] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 56.736154] ? proc_fail_nth_write+0x9e/0x210 [ 56.740656] ? proc_cwd_link+0x1d0/0x1d0 [ 56.744724] ? trace_hardirqs_off+0xb8/0x310 [ 56.749138] ? find_held_lock+0x36/0x1c0 [ 56.753208] ? vfs_write+0x2f3/0x560 [ 56.756926] ? tty_vhangup+0x30/0x30 [ 56.760644] do_vfs_ioctl+0x1de/0x1790 [ 56.764534] ? __lock_is_held+0xb5/0x140 [ 56.768598] ? ioctl_preallocate+0x300/0x300 [ 56.773009] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.778557] ? __fget_light+0x2e9/0x430 [ 56.782533] ? fget_raw+0x20/0x20 [ 56.785993] ? __sb_end_write+0xd9/0x110 [ 56.790074] ? do_syscall_64+0x9a/0x820 [ 56.794069] ? do_syscall_64+0x9a/0x820 [ 56.798062] ? lockdep_hardirqs_on+0x421/0x5c0 [ 56.802650] ? security_file_ioctl+0x94/0xc0 [ 56.807088] ksys_ioctl+0xa9/0xd0 [ 56.810549] __x64_sys_ioctl+0x73/0xb0 [ 56.814441] do_syscall_64+0x1b9/0x820 [ 56.818329] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 56.823695] ? syscall_return_slowpath+0x5e0/0x5e0 [ 56.828643] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.833516] ? trace_hardirqs_on_caller+0x310/0x310 [ 56.838554] ? prepare_exit_to_usermode+0x291/0x3b0 [ 56.843584] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.848435] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.853622] RIP: 0033:0x4410e9 [ 56.856830] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.875730] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 56.883434] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 56.890701] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 56.897968] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 56.905235] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 56.912505] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 56.919791] CPU: 1 PID: 7932 Comm: syz-executor081 Tainted: G B 4.20.0 #387 [ 56.928198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.937541] Call Trace: [ 56.940139] dump_stack+0x1d3/0x2c6 [ 56.943771] ? dump_stack_print_info.cold.1+0x20/0x20 [ 56.948963] ? __kernel_text_address+0xd/0x40 [ 56.953475] ? unwind_get_return_address+0x61/0xa0 [ 56.958425] should_fail.cold.4+0xa/0x17 [ 56.962501] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 56.967641] ? save_stack+0xa9/0xd0 [ 56.971268] ? save_stack+0x43/0xd0 [ 56.974892] ? kasan_kmalloc+0xc7/0xe0 [ 56.978777] ? __kmalloc+0x15b/0x770 [ 56.982488] ? x25_asy_open_tty+0x32a/0x7e7 [ 56.986812] ? tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.991393] ? tty_set_ldisc+0x2dc/0x6a0 [ 56.995456] ? do_vfs_ioctl+0x1de/0x1790 [ 56.999535] ? ksys_ioctl+0xa9/0xd0 [ 57.003168] ? __x64_sys_ioctl+0x73/0xb0 [ 57.007233] ? do_syscall_64+0x1b9/0x820 [ 57.011298] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.016664] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 57.021593] ? __vunmap+0x335/0x460 [ 57.025222] ? wait_for_completion+0x8a0/0x8a0 [ 57.029804] ? tty_ioctl+0x39d/0x17d0 [ 57.033606] ? __x64_sys_ioctl+0x73/0xb0 [ 57.037666] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.043030] ? fs_reclaim_acquire+0x20/0x20 [ 57.047372] ? lock_downgrade+0x900/0x900 [ 57.051534] ? ___might_sleep+0x1ed/0x300 [ 57.055686] ? arch_local_save_flags+0x40/0x40 [ 57.060270] ? trace_hardirqs_on+0xbd/0x310 [ 57.064615] __should_failslab+0x124/0x180 [ 57.068854] should_failslab+0x9/0x14 [ 57.072660] __kmalloc+0x2e0/0x770 [ 57.076207] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.081742] ? x25_asy_open_tty+0x372/0x7e7 [ 57.086070] x25_asy_open_tty+0x372/0x7e7 [ 57.090220] ? x25_asy_close_tty+0x220/0x220 [ 57.094629] ? up_write+0x7b/0x220 [ 57.098171] ? down_write_nested+0x130/0x130 [ 57.102584] ? down_read+0x120/0x120 [ 57.106297] ? x25_asy_close_tty+0x220/0x220 [ 57.110702] tty_ldisc_open.isra.1+0x8b/0xe0 [ 57.115112] tty_set_ldisc+0x2dc/0x6a0 [ 57.119003] tty_ioctl+0x39d/0x17d0 [ 57.122632] ? tty_vhangup+0x30/0x30 [ 57.126347] ? get_pid_task+0xd6/0x1a0 [ 57.130239] ? lock_downgrade+0x900/0x900 [ 57.134389] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 57.139324] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.144861] ? pid_task+0x115/0x200 [ 57.148492] ? find_vpid+0xf0/0xf0 [ 57.152051] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 57.157599] ? proc_fail_nth_write+0x9e/0x210 [ 57.162091] ? proc_cwd_link+0x1d0/0x1d0 [ 57.166154] ? trace_hardirqs_off+0xb8/0x310 [ 57.170567] ? kasan_check_read+0x11/0x20 [ 57.174717] ? do_raw_spin_unlock+0xa7/0x330 [ 57.179131] ? __vfs_write+0x121/0x9f0 [ 57.183018] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.188567] ? vfs_write+0x2f3/0x560 [ 57.192286] ? tty_vhangup+0x30/0x30 [ 57.196000] do_vfs_ioctl+0x1de/0x1790 [ 57.199887] ? fsnotify_first_mark+0x350/0x350 [ 57.204467] ? __fsnotify_parent+0xcc/0x430 [ 57.208792] ? ioctl_preallocate+0x300/0x300 [ 57.213200] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.218742] ? __fget_light+0x2e9/0x430 [ 57.222718] ? fget_raw+0x20/0x20 [ 57.226176] ? __sb_end_write+0xd9/0x110 [ 57.230244] ? ksys_write+0x1ae/0x260 [ 57.234055] ? security_file_ioctl+0x94/0xc0 [ 57.238470] ksys_ioctl+0xa9/0xd0 [ 57.241927] __x64_sys_ioctl+0x73/0xb0 [ 57.245814] do_syscall_64+0x1b9/0x820 [ 57.249699] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 57.255075] ? syscall_return_slowpath+0x5e0/0x5e0 [ 57.260006] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.264856] ? trace_hardirqs_on_caller+0x310/0x310 [ 57.269875] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 57.274898] ? prepare_exit_to_usermode+0x291/0x3b0 [ 57.279921] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.284765] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.289953] RIP: 0033:0x4410e9 [ 57.293145] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.312053] RSP: 002b:00007ffc32511548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 57.319760] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004410e9 [ 57.327026] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 57.334299] RBP: 00007ffc32511560 R08: 0000000000000001 R09: 0000000000000000 [ 57.341569] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 57.348834] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 57.356907] Kernel Offset: disabled [ 57.360530] Rebooting in 86400 seconds..