[ OK ] Started Getty on tty3. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.68' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.056623] FAULT_INJECTION: forcing a failure. [ 33.056623] name failslab, interval 1, probability 0, space 0, times 1 [ 33.068326] CPU: 0 PID: 8089 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 33.076220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 33.085573] Call Trace: [ 33.088158] dump_stack+0x1fc/0x2ef [ 33.091769] should_fail.cold+0xa/0xf [ 33.095553] ? setup_fault_attr+0x200/0x200 [ 33.099881] ? lock_acquire+0x170/0x3c0 [ 33.103836] __should_failslab+0x115/0x180 [ 33.108048] should_failslab+0x5/0x10 [ 33.111827] __kmalloc+0x2ab/0x3c0 [ 33.115344] ? __kfifo_alloc+0x174/0x290 [ 33.119387] __kfifo_alloc+0x174/0x290 [ 33.123261] gsm_dlci_alloc+0xd4/0x410 [ 33.127258] gsm_activate_mux+0x1f4/0x290 [ 33.131391] gsmld_open+0x4fa/0x7e0 [ 33.135005] ? gsmld_close+0x1f0/0x1f0 [ 33.138880] tty_ldisc_open+0x81/0xc0 [ 33.142669] tty_set_ldisc+0x2d2/0x650 [ 33.146538] tty_ioctl+0xb4b/0x1630 [ 33.150162] ? tty_fasync+0x300/0x300 [ 33.153953] ? get_pid_task+0xf4/0x190 [ 33.157834] ? proc_fail_nth_write+0x95/0x1d0 [ 33.162313] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.167222] ? debug_check_no_obj_freed+0x201/0x490 [ 33.172222] ? __vfs_write+0xff/0x770 [ 33.176013] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.180920] ? common_file_perm+0x4e5/0x850 [ 33.185234] ? tty_fasync+0x300/0x300 [ 33.189027] do_vfs_ioctl+0xcdb/0x12e0 [ 33.192894] ? vfs_write+0x3d7/0x540 [ 33.196587] ? ioctl_preallocate+0x200/0x200 [ 33.200981] ? lock_downgrade+0x720/0x720 [ 33.205113] ? check_preemption_disabled+0x41/0x280 [ 33.210109] ? vfs_write+0x393/0x540 [ 33.213804] ? ksys_write+0x1c8/0x2a0 [ 33.217588] ksys_ioctl+0x9b/0xc0 [ 33.221035] __x64_sys_ioctl+0x6f/0xb0 [ 33.224915] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 33.229480] do_syscall_64+0xf9/0x620 [ 33.233263] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.238436] RIP: 0033:0x7f260915ed19 executing program [ 33.242134] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 33.261109] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.268993] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 33.276254] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 33.283527] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 33.290792] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 33.298049] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 33.312520] FAULT_INJECTION: forcing a failure. [ 33.312520] name failslab, interval 1, probability 0, space 0, times 0 [ 33.323889] CPU: 0 PID: 8096 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 33.331780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 33.341118] Call Trace: [ 33.343726] dump_stack+0x1fc/0x2ef [ 33.347353] should_fail.cold+0xa/0xf [ 33.351147] ? setup_fault_attr+0x200/0x200 [ 33.355453] ? lock_acquire+0x170/0x3c0 [ 33.359501] __should_failslab+0x115/0x180 [ 33.363721] should_failslab+0x5/0x10 [ 33.367522] __kmalloc+0x2ab/0x3c0 [ 33.371039] ? __kfifo_alloc+0x174/0x290 [ 33.375145] __kfifo_alloc+0x174/0x290 [ 33.379017] gsm_dlci_alloc+0xd4/0x410 [ 33.382883] gsm_activate_mux+0x1f4/0x290 [ 33.387010] gsmld_open+0x4fa/0x7e0 [ 33.390615] ? gsmld_close+0x1f0/0x1f0 [ 33.394482] tty_ldisc_open+0x81/0xc0 [ 33.398261] tty_set_ldisc+0x2d2/0x650 [ 33.402132] tty_ioctl+0xb4b/0x1630 [ 33.405740] ? tty_fasync+0x300/0x300 [ 33.409523] ? get_pid_task+0xf4/0x190 [ 33.413390] ? proc_fail_nth_write+0x95/0x1d0 [ 33.417867] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.422779] ? debug_check_no_obj_freed+0x201/0x490 [ 33.427788] ? __vfs_write+0xff/0x770 [ 33.431567] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.436474] ? common_file_perm+0x4e5/0x850 [ 33.440794] ? tty_fasync+0x300/0x300 [ 33.444580] do_vfs_ioctl+0xcdb/0x12e0 [ 33.448461] ? vfs_write+0x3d7/0x540 [ 33.452158] ? ioctl_preallocate+0x200/0x200 [ 33.456555] ? lock_downgrade+0x720/0x720 [ 33.460700] ? check_preemption_disabled+0x41/0x280 [ 33.465698] ? vfs_write+0x393/0x540 [ 33.469394] ? ksys_write+0x1c8/0x2a0 [ 33.473174] ksys_ioctl+0x9b/0xc0 [ 33.476607] __x64_sys_ioctl+0x6f/0xb0 [ 33.480472] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 33.485038] do_syscall_64+0xf9/0x620 [ 33.488822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.493988] RIP: 0033:0x7f260915ed19 executing program [ 33.497681] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 33.516572] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.524261] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 33.531514] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 33.538776] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 33.546030] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 33.553281] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 33.566236] FAULT_INJECTION: forcing a failure. [ 33.566236] name failslab, interval 1, probability 0, space 0, times 0 [ 33.577819] CPU: 0 PID: 8097 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 33.585700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 33.595049] Call Trace: [ 33.597626] dump_stack+0x1fc/0x2ef [ 33.601322] should_fail.cold+0xa/0xf [ 33.605105] ? setup_fault_attr+0x200/0x200 [ 33.609413] ? lock_acquire+0x170/0x3c0 [ 33.613373] __should_failslab+0x115/0x180 [ 33.617590] should_failslab+0x5/0x10 [ 33.621369] __kmalloc+0x2ab/0x3c0 [ 33.624888] ? __kfifo_alloc+0x174/0x290 [ 33.628931] __kfifo_alloc+0x174/0x290 [ 33.632804] gsm_dlci_alloc+0xd4/0x410 [ 33.636675] gsm_activate_mux+0x1f4/0x290 [ 33.640803] gsmld_open+0x4fa/0x7e0 [ 33.644408] ? gsmld_close+0x1f0/0x1f0 [ 33.648275] tty_ldisc_open+0x81/0xc0 [ 33.652055] tty_set_ldisc+0x2d2/0x650 [ 33.655926] tty_ioctl+0xb4b/0x1630 [ 33.659535] ? tty_fasync+0x300/0x300 [ 33.663328] ? get_pid_task+0xf4/0x190 [ 33.667196] ? proc_fail_nth_write+0x95/0x1d0 [ 33.671668] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.676597] ? debug_check_no_obj_freed+0x201/0x490 [ 33.681614] ? __vfs_write+0xff/0x770 [ 33.685408] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.690341] ? common_file_perm+0x4e5/0x850 [ 33.694648] ? tty_fasync+0x300/0x300 [ 33.698433] do_vfs_ioctl+0xcdb/0x12e0 [ 33.702306] ? vfs_write+0x3d7/0x540 [ 33.705998] ? ioctl_preallocate+0x200/0x200 [ 33.710386] ? lock_downgrade+0x720/0x720 [ 33.714518] ? check_preemption_disabled+0x41/0x280 [ 33.719517] ? vfs_write+0x393/0x540 [ 33.723222] ? ksys_write+0x1c8/0x2a0 [ 33.727020] ksys_ioctl+0x9b/0xc0 [ 33.730494] __x64_sys_ioctl+0x6f/0xb0 [ 33.734361] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 33.738935] do_syscall_64+0xf9/0x620 [ 33.742720] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.747894] RIP: 0033:0x7f260915ed19 executing program [ 33.751586] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 33.770492] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.778213] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 33.785464] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 33.792716] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 33.799973] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 33.807224] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 33.820183] FAULT_INJECTION: forcing a failure. [ 33.820183] name failslab, interval 1, probability 0, space 0, times 0 [ 33.831592] CPU: 0 PID: 8098 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 33.839469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 33.848803] Call Trace: [ 33.851376] dump_stack+0x1fc/0x2ef [ 33.854989] should_fail.cold+0xa/0xf [ 33.858774] ? setup_fault_attr+0x200/0x200 [ 33.863078] ? lock_acquire+0x170/0x3c0 [ 33.867038] __should_failslab+0x115/0x180 [ 33.871253] should_failslab+0x5/0x10 [ 33.875033] __kmalloc+0x2ab/0x3c0 [ 33.878549] ? __kfifo_alloc+0x174/0x290 [ 33.882590] __kfifo_alloc+0x174/0x290 [ 33.886461] gsm_dlci_alloc+0xd4/0x410 [ 33.890328] gsm_activate_mux+0x1f4/0x290 [ 33.894545] gsmld_open+0x4fa/0x7e0 [ 33.898149] ? gsmld_close+0x1f0/0x1f0 [ 33.902012] tty_ldisc_open+0x81/0xc0 [ 33.905793] tty_set_ldisc+0x2d2/0x650 [ 33.909664] tty_ioctl+0xb4b/0x1630 [ 33.913271] ? tty_fasync+0x300/0x300 [ 33.917053] ? get_pid_task+0xf4/0x190 [ 33.920921] ? proc_fail_nth_write+0x95/0x1d0 [ 33.925400] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.930329] ? debug_check_no_obj_freed+0x201/0x490 [ 33.935327] ? __vfs_write+0xff/0x770 [ 33.939103] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.944012] ? common_file_perm+0x4e5/0x850 [ 33.948315] ? tty_fasync+0x300/0x300 [ 33.952114] do_vfs_ioctl+0xcdb/0x12e0 [ 33.956004] ? vfs_write+0x3d7/0x540 [ 33.959711] ? ioctl_preallocate+0x200/0x200 [ 33.964106] ? lock_downgrade+0x720/0x720 [ 33.968247] ? check_preemption_disabled+0x41/0x280 [ 33.973245] ? vfs_write+0x393/0x540 [ 33.976938] ? ksys_write+0x1c8/0x2a0 [ 33.980721] ksys_ioctl+0x9b/0xc0 [ 33.984164] __x64_sys_ioctl+0x6f/0xb0 [ 33.988090] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 33.992655] do_syscall_64+0xf9/0x620 [ 33.996440] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.001611] RIP: 0033:0x7f260915ed19 executing program [ 34.005305] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 34.024186] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.031872] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 34.039122] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 34.046384] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 34.053645] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.060904] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 34.080260] FAULT_INJECTION: forcing a failure. [ 34.080260] name failslab, interval 1, probability 0, space 0, times 0 [ 34.091652] CPU: 0 PID: 8100 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 34.099529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.108862] Call Trace: [ 34.111446] dump_stack+0x1fc/0x2ef [ 34.115057] should_fail.cold+0xa/0xf [ 34.118861] ? setup_fault_attr+0x200/0x200 [ 34.123164] ? lock_acquire+0x170/0x3c0 [ 34.127121] __should_failslab+0x115/0x180 [ 34.131338] should_failslab+0x5/0x10 [ 34.135118] __kmalloc+0x2ab/0x3c0 [ 34.138637] ? __kfifo_alloc+0x174/0x290 [ 34.142680] __kfifo_alloc+0x174/0x290 [ 34.146552] gsm_dlci_alloc+0xd4/0x410 [ 34.150423] gsm_activate_mux+0x1f4/0x290 [ 34.154551] gsmld_open+0x4fa/0x7e0 [ 34.158204] ? gsmld_close+0x1f0/0x1f0 [ 34.162068] tty_ldisc_open+0x81/0xc0 [ 34.165849] tty_set_ldisc+0x2d2/0x650 [ 34.169719] tty_ioctl+0xb4b/0x1630 [ 34.173326] ? tty_fasync+0x300/0x300 [ 34.177105] ? get_pid_task+0xf4/0x190 [ 34.180971] ? proc_fail_nth_write+0x95/0x1d0 [ 34.185445] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.190401] ? debug_check_no_obj_freed+0x201/0x490 [ 34.195401] ? __vfs_write+0xff/0x770 [ 34.199178] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.204090] ? common_file_perm+0x4e5/0x850 [ 34.208392] ? tty_fasync+0x300/0x300 [ 34.212175] do_vfs_ioctl+0xcdb/0x12e0 [ 34.216044] ? vfs_write+0x3d7/0x540 [ 34.219737] ? ioctl_preallocate+0x200/0x200 [ 34.224124] ? lock_downgrade+0x720/0x720 [ 34.228254] ? check_preemption_disabled+0x41/0x280 [ 34.233363] ? vfs_write+0x393/0x540 [ 34.237058] ? ksys_write+0x1c8/0x2a0 [ 34.240840] ksys_ioctl+0x9b/0xc0 [ 34.244272] __x64_sys_ioctl+0x6f/0xb0 [ 34.248139] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.252732] do_syscall_64+0xf9/0x620 [ 34.256515] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.261683] RIP: 0033:0x7f260915ed19 executing program [ 34.265378] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 34.284354] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.292059] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 34.299307] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 34.306562] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 34.313811] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.321060] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 34.335556] FAULT_INJECTION: forcing a failure. [ 34.335556] name failslab, interval 1, probability 0, space 0, times 0 [ 34.346907] CPU: 0 PID: 8102 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 34.354782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.364115] Call Trace: [ 34.366684] dump_stack+0x1fc/0x2ef [ 34.370294] should_fail.cold+0xa/0xf [ 34.374077] ? setup_fault_attr+0x200/0x200 [ 34.378376] ? lock_acquire+0x170/0x3c0 [ 34.382332] __should_failslab+0x115/0x180 [ 34.386561] should_failslab+0x5/0x10 [ 34.390340] __kmalloc+0x2ab/0x3c0 [ 34.393860] ? __kfifo_alloc+0x174/0x290 [ 34.397901] __kfifo_alloc+0x174/0x290 [ 34.401775] gsm_dlci_alloc+0xd4/0x410 [ 34.405649] gsm_activate_mux+0x1f4/0x290 [ 34.409782] gsmld_open+0x4fa/0x7e0 [ 34.413389] ? gsmld_close+0x1f0/0x1f0 [ 34.417254] tty_ldisc_open+0x81/0xc0 [ 34.421031] tty_set_ldisc+0x2d2/0x650 [ 34.424900] tty_ioctl+0xb4b/0x1630 [ 34.428509] ? tty_fasync+0x300/0x300 [ 34.432290] ? get_pid_task+0xf4/0x190 [ 34.436157] ? proc_fail_nth_write+0x95/0x1d0 [ 34.440631] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.445538] ? debug_check_no_obj_freed+0x201/0x490 [ 34.450709] ? __vfs_write+0xff/0x770 [ 34.454490] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.459400] ? common_file_perm+0x4e5/0x850 [ 34.463705] ? tty_fasync+0x300/0x300 [ 34.467489] do_vfs_ioctl+0xcdb/0x12e0 [ 34.471356] ? vfs_write+0x3d7/0x540 [ 34.475045] ? ioctl_preallocate+0x200/0x200 [ 34.479433] ? lock_downgrade+0x720/0x720 [ 34.483561] ? check_preemption_disabled+0x41/0x280 [ 34.488559] ? vfs_write+0x393/0x540 [ 34.492264] ? ksys_write+0x1c8/0x2a0 [ 34.496044] ksys_ioctl+0x9b/0xc0 [ 34.499479] __x64_sys_ioctl+0x6f/0xb0 [ 34.503359] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.507920] do_syscall_64+0xf9/0x620 [ 34.511702] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.516869] RIP: 0033:0x7f260915ed19 executing program [ 34.520563] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 34.539439] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.547124] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 34.554378] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 34.561628] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 34.568874] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.576122] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 34.588912] FAULT_INJECTION: forcing a failure. [ 34.588912] name failslab, interval 1, probability 0, space 0, times 0 [ 34.600259] CPU: 0 PID: 8103 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 34.608140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.617474] Call Trace: [ 34.620045] dump_stack+0x1fc/0x2ef [ 34.623658] should_fail.cold+0xa/0xf [ 34.627441] ? setup_fault_attr+0x200/0x200 [ 34.631829] ? lock_acquire+0x170/0x3c0 [ 34.635794] __should_failslab+0x115/0x180 [ 34.640008] should_failslab+0x5/0x10 [ 34.643797] __kmalloc+0x2ab/0x3c0 [ 34.647316] ? __kfifo_alloc+0x174/0x290 [ 34.651358] __kfifo_alloc+0x174/0x290 [ 34.655233] gsm_dlci_alloc+0xd4/0x410 [ 34.659102] gsm_activate_mux+0x1f4/0x290 [ 34.663227] gsmld_open+0x4fa/0x7e0 [ 34.666832] ? gsmld_close+0x1f0/0x1f0 [ 34.670697] tty_ldisc_open+0x81/0xc0 [ 34.674478] tty_set_ldisc+0x2d2/0x650 [ 34.678347] tty_ioctl+0xb4b/0x1630 [ 34.681952] ? tty_fasync+0x300/0x300 [ 34.685732] ? get_pid_task+0xf4/0x190 [ 34.689599] ? proc_fail_nth_write+0x95/0x1d0 [ 34.694075] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.698985] ? debug_check_no_obj_freed+0x201/0x490 [ 34.703981] ? __vfs_write+0xff/0x770 [ 34.707764] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.712671] ? common_file_perm+0x4e5/0x850 [ 34.716972] ? tty_fasync+0x300/0x300 [ 34.720763] do_vfs_ioctl+0xcdb/0x12e0 [ 34.724671] ? vfs_write+0x3d7/0x540 [ 34.728370] ? ioctl_preallocate+0x200/0x200 [ 34.732773] ? lock_downgrade+0x720/0x720 [ 34.736904] ? check_preemption_disabled+0x41/0x280 [ 34.742161] ? vfs_write+0x393/0x540 [ 34.745854] ? ksys_write+0x1c8/0x2a0 [ 34.749636] ksys_ioctl+0x9b/0xc0 [ 34.753070] __x64_sys_ioctl+0x6f/0xb0 [ 34.756944] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.761507] do_syscall_64+0xf9/0x620 [ 34.765289] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.770460] RIP: 0033:0x7f260915ed19 executing program [ 34.774152] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 34.793033] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.800720] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 34.808032] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 34.815370] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 34.822706] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.829954] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 34.846454] FAULT_INJECTION: forcing a failure. [ 34.846454] name failslab, interval 1, probability 0, space 0, times 0 [ 34.857777] CPU: 1 PID: 8104 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 34.865641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.874974] Call Trace: [ 34.877549] dump_stack+0x1fc/0x2ef [ 34.881157] should_fail.cold+0xa/0xf [ 34.884939] ? setup_fault_attr+0x200/0x200 [ 34.889242] ? lock_acquire+0x170/0x3c0 [ 34.893199] __should_failslab+0x115/0x180 [ 34.897415] should_failslab+0x5/0x10 [ 34.901196] __kmalloc+0x2ab/0x3c0 [ 34.904716] ? __kfifo_alloc+0x174/0x290 [ 34.908758] __kfifo_alloc+0x174/0x290 [ 34.912631] gsm_dlci_alloc+0xd4/0x410 [ 34.916500] gsm_activate_mux+0x1f4/0x290 [ 34.920626] gsmld_open+0x4fa/0x7e0 [ 34.924237] ? gsmld_close+0x1f0/0x1f0 [ 34.928107] tty_ldisc_open+0x81/0xc0 [ 34.931891] tty_set_ldisc+0x2d2/0x650 [ 34.935762] tty_ioctl+0xb4b/0x1630 [ 34.939369] ? tty_fasync+0x300/0x300 [ 34.943235] ? get_pid_task+0xf4/0x190 [ 34.947103] ? proc_fail_nth_write+0x95/0x1d0 [ 34.951578] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.956489] ? debug_check_no_obj_freed+0x201/0x490 [ 34.961502] ? __vfs_write+0xff/0x770 [ 34.965286] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.970200] ? common_file_perm+0x4e5/0x850 [ 34.974510] ? tty_fasync+0x300/0x300 [ 34.978319] do_vfs_ioctl+0xcdb/0x12e0 [ 34.982190] ? vfs_write+0x3d7/0x540 [ 34.985884] ? ioctl_preallocate+0x200/0x200 [ 34.990277] ? lock_downgrade+0x720/0x720 [ 34.994435] ? check_preemption_disabled+0x41/0x280 [ 34.999446] ? vfs_write+0x393/0x540 [ 35.003141] ? ksys_write+0x1c8/0x2a0 [ 35.006923] ksys_ioctl+0x9b/0xc0 [ 35.010357] __x64_sys_ioctl+0x6f/0xb0 [ 35.014240] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.018829] do_syscall_64+0xf9/0x620 [ 35.022617] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.027795] RIP: 0033:0x7f260915ed19 executing program [ 35.031491] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.050373] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.058059] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 35.065307] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 35.072557] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 35.079807] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 35.087057] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 35.101067] FAULT_INJECTION: forcing a failure. [ 35.101067] name failslab, interval 1, probability 0, space 0, times 0 [ 35.112345] CPU: 1 PID: 8105 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 35.120226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.129561] Call Trace: [ 35.132136] dump_stack+0x1fc/0x2ef [ 35.135748] should_fail.cold+0xa/0xf [ 35.139531] ? setup_fault_attr+0x200/0x200 [ 35.143838] ? lock_acquire+0x170/0x3c0 [ 35.147796] __should_failslab+0x115/0x180 [ 35.152012] should_failslab+0x5/0x10 [ 35.155797] __kmalloc+0x2ab/0x3c0 [ 35.159318] ? __kfifo_alloc+0x174/0x290 [ 35.163383] __kfifo_alloc+0x174/0x290 [ 35.167254] gsm_dlci_alloc+0xd4/0x410 [ 35.171123] gsm_activate_mux+0x1f4/0x290 [ 35.175249] gsmld_open+0x4fa/0x7e0 [ 35.178856] ? gsmld_close+0x1f0/0x1f0 [ 35.182721] tty_ldisc_open+0x81/0xc0 [ 35.186499] tty_set_ldisc+0x2d2/0x650 [ 35.190370] tty_ioctl+0xb4b/0x1630 [ 35.193978] ? tty_fasync+0x300/0x300 [ 35.197760] ? get_pid_task+0xf4/0x190 [ 35.201683] ? proc_fail_nth_write+0x95/0x1d0 [ 35.206268] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.211177] ? debug_check_no_obj_freed+0x201/0x490 [ 35.216173] ? __vfs_write+0xff/0x770 [ 35.219952] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.224874] ? common_file_perm+0x4e5/0x850 [ 35.229177] ? tty_fasync+0x300/0x300 [ 35.232986] do_vfs_ioctl+0xcdb/0x12e0 [ 35.237114] ? vfs_write+0x3d7/0x540 [ 35.240808] ? ioctl_preallocate+0x200/0x200 [ 35.245196] ? lock_downgrade+0x720/0x720 [ 35.249326] ? check_preemption_disabled+0x41/0x280 [ 35.254325] ? vfs_write+0x393/0x540 [ 35.258038] ? ksys_write+0x1c8/0x2a0 [ 35.261818] ksys_ioctl+0x9b/0xc0 [ 35.265253] __x64_sys_ioctl+0x6f/0xb0 [ 35.269123] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.273686] do_syscall_64+0xf9/0x620 [ 35.277470] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.282637] RIP: 0033:0x7f260915ed19 executing program [ 35.286331] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.305208] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.312912] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 35.320188] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 35.327533] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 35.334781] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 35.342029] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 35.356414] FAULT_INJECTION: forcing a failure. [ 35.356414] name failslab, interval 1, probability 0, space 0, times 0 [ 35.367778] CPU: 1 PID: 8106 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 35.375643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.384973] Call Trace: [ 35.387544] dump_stack+0x1fc/0x2ef [ 35.391156] should_fail.cold+0xa/0xf [ 35.394939] ? setup_fault_attr+0x200/0x200 [ 35.399240] ? lock_acquire+0x170/0x3c0 [ 35.403207] __should_failslab+0x115/0x180 [ 35.407428] should_failslab+0x5/0x10 [ 35.411207] __kmalloc+0x2ab/0x3c0 [ 35.414724] ? __kfifo_alloc+0x174/0x290 [ 35.418764] __kfifo_alloc+0x174/0x290 [ 35.422635] gsm_dlci_alloc+0xd4/0x410 [ 35.426502] gsm_activate_mux+0x1f4/0x290 [ 35.430629] gsmld_open+0x4fa/0x7e0 [ 35.434234] ? gsmld_close+0x1f0/0x1f0 [ 35.438098] tty_ldisc_open+0x81/0xc0 [ 35.441877] tty_set_ldisc+0x2d2/0x650 [ 35.445745] tty_ioctl+0xb4b/0x1630 [ 35.449354] ? tty_fasync+0x300/0x300 [ 35.453135] ? get_pid_task+0xf4/0x190 [ 35.457005] ? proc_fail_nth_write+0x95/0x1d0 [ 35.461477] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.466406] ? debug_check_no_obj_freed+0x201/0x490 [ 35.471403] ? __vfs_write+0xff/0x770 [ 35.475190] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.480097] ? common_file_perm+0x4e5/0x850 [ 35.484398] ? tty_fasync+0x300/0x300 [ 35.488179] do_vfs_ioctl+0xcdb/0x12e0 [ 35.492044] ? vfs_write+0x3d7/0x540 [ 35.495734] ? ioctl_preallocate+0x200/0x200 [ 35.500122] ? lock_downgrade+0x720/0x720 [ 35.504249] ? check_preemption_disabled+0x41/0x280 [ 35.509248] ? vfs_write+0x393/0x540 [ 35.512943] ? ksys_write+0x1c8/0x2a0 [ 35.516724] ksys_ioctl+0x9b/0xc0 [ 35.520173] __x64_sys_ioctl+0x6f/0xb0 [ 35.524040] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.528601] do_syscall_64+0xf9/0x620 [ 35.532389] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.537560] RIP: 0033:0x7f260915ed19 executing program [ 35.541253] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.560128] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.567812] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 35.575071] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 35.582320] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 35.589565] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 35.596813] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 35.610500] FAULT_INJECTION: forcing a failure. [ 35.610500] name failslab, interval 1, probability 0, space 0, times 0 [ 35.622084] CPU: 1 PID: 8107 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 35.629950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.639285] Call Trace: [ 35.641897] dump_stack+0x1fc/0x2ef [ 35.645510] should_fail.cold+0xa/0xf [ 35.649294] ? setup_fault_attr+0x200/0x200 [ 35.653596] ? lock_acquire+0x170/0x3c0 [ 35.657643] __should_failslab+0x115/0x180 [ 35.661858] should_failslab+0x5/0x10 [ 35.665645] __kmalloc+0x2ab/0x3c0 [ 35.669164] ? __kfifo_alloc+0x174/0x290 [ 35.673213] __kfifo_alloc+0x174/0x290 [ 35.677086] gsm_dlci_alloc+0xd4/0x410 [ 35.680954] gsm_activate_mux+0x1f4/0x290 [ 35.685104] gsmld_open+0x4fa/0x7e0 [ 35.688708] ? gsmld_close+0x1f0/0x1f0 [ 35.692575] tty_ldisc_open+0x81/0xc0 [ 35.696357] tty_set_ldisc+0x2d2/0x650 [ 35.700228] tty_ioctl+0xb4b/0x1630 [ 35.703836] ? tty_fasync+0x300/0x300 [ 35.707618] ? get_pid_task+0xf4/0x190 [ 35.711487] ? proc_fail_nth_write+0x95/0x1d0 [ 35.715962] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.720874] ? debug_check_no_obj_freed+0x201/0x490 [ 35.725874] ? __vfs_write+0xff/0x770 [ 35.729658] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.734571] ? common_file_perm+0x4e5/0x850 [ 35.738870] ? tty_fasync+0x300/0x300 [ 35.742653] do_vfs_ioctl+0xcdb/0x12e0 [ 35.746523] ? vfs_write+0x3d7/0x540 [ 35.750225] ? ioctl_preallocate+0x200/0x200 [ 35.754616] ? lock_downgrade+0x720/0x720 [ 35.758757] ? check_preemption_disabled+0x41/0x280 [ 35.763757] ? vfs_write+0x393/0x540 [ 35.767459] ? ksys_write+0x1c8/0x2a0 [ 35.771247] ksys_ioctl+0x9b/0xc0 [ 35.774681] __x64_sys_ioctl+0x6f/0xb0 [ 35.778552] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.783122] do_syscall_64+0xf9/0x620 [ 35.786905] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.792075] RIP: 0033:0x7f260915ed19 executing program [ 35.795770] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.814678] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.822369] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 35.829654] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 35.836909] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 35.844165] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 35.851422] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 35.865388] FAULT_INJECTION: forcing a failure. [ 35.865388] name failslab, interval 1, probability 0, space 0, times 0 [ 35.876729] CPU: 1 PID: 8108 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 35.884611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.893945] Call Trace: [ 35.896880] dump_stack+0x1fc/0x2ef [ 35.900513] should_fail.cold+0xa/0xf [ 35.904300] ? setup_fault_attr+0x200/0x200 [ 35.908618] ? lock_acquire+0x170/0x3c0 [ 35.912596] __should_failslab+0x115/0x180 [ 35.916827] should_failslab+0x5/0x10 [ 35.920625] __kmalloc+0x2ab/0x3c0 [ 35.924152] ? __kfifo_alloc+0x174/0x290 [ 35.928200] __kfifo_alloc+0x174/0x290 [ 35.932268] gsm_dlci_alloc+0xd4/0x410 [ 35.936154] gsm_activate_mux+0x1f4/0x290 [ 35.940312] gsmld_open+0x4fa/0x7e0 [ 35.943924] ? gsmld_close+0x1f0/0x1f0 [ 35.947916] tty_ldisc_open+0x81/0xc0 [ 35.951709] tty_set_ldisc+0x2d2/0x650 [ 35.955588] tty_ioctl+0xb4b/0x1630 [ 35.959207] ? tty_fasync+0x300/0x300 [ 35.963005] ? get_pid_task+0xf4/0x190 [ 35.966882] ? proc_fail_nth_write+0x95/0x1d0 [ 35.971372] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.976287] ? debug_check_no_obj_freed+0x201/0x490 [ 35.981286] ? __vfs_write+0xff/0x770 [ 35.985069] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.989979] ? common_file_perm+0x4e5/0x850 [ 35.994283] ? tty_fasync+0x300/0x300 [ 35.998069] do_vfs_ioctl+0xcdb/0x12e0 [ 36.001940] ? vfs_write+0x3d7/0x540 [ 36.005633] ? ioctl_preallocate+0x200/0x200 [ 36.010025] ? lock_downgrade+0x720/0x720 [ 36.014161] ? check_preemption_disabled+0x41/0x280 [ 36.019335] ? vfs_write+0x393/0x540 [ 36.023034] ? ksys_write+0x1c8/0x2a0 [ 36.026875] ksys_ioctl+0x9b/0xc0 [ 36.030327] __x64_sys_ioctl+0x6f/0xb0 [ 36.034196] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.038843] do_syscall_64+0xf9/0x620 [ 36.042642] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.047809] RIP: 0033:0x7f260915ed19 executing program [ 36.051502] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 36.070389] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.078081] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 36.085564] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 36.092837] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 36.100094] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.107355] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 36.122601] FAULT_INJECTION: forcing a failure. [ 36.122601] name failslab, interval 1, probability 0, space 0, times 0 [ 36.134014] CPU: 1 PID: 8109 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 36.141876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.151212] Call Trace: [ 36.153788] dump_stack+0x1fc/0x2ef [ 36.157398] should_fail.cold+0xa/0xf [ 36.161185] ? setup_fault_attr+0x200/0x200 [ 36.165502] ? lock_acquire+0x170/0x3c0 [ 36.169569] __should_failslab+0x115/0x180 [ 36.173787] should_failslab+0x5/0x10 [ 36.177615] __kmalloc+0x2ab/0x3c0 [ 36.181138] ? __kfifo_alloc+0x174/0x290 [ 36.185177] __kfifo_alloc+0x174/0x290 [ 36.189051] gsm_dlci_alloc+0xd4/0x410 [ 36.192927] gsm_activate_mux+0x1f4/0x290 [ 36.197164] gsmld_open+0x4fa/0x7e0 [ 36.200866] ? gsmld_close+0x1f0/0x1f0 [ 36.204742] tty_ldisc_open+0x81/0xc0 [ 36.208525] tty_set_ldisc+0x2d2/0x650 [ 36.212403] tty_ioctl+0xb4b/0x1630 [ 36.216014] ? tty_fasync+0x300/0x300 [ 36.219795] ? get_pid_task+0xf4/0x190 [ 36.223671] ? proc_fail_nth_write+0x95/0x1d0 [ 36.228146] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.233057] ? debug_check_no_obj_freed+0x201/0x490 [ 36.238055] ? __vfs_write+0xff/0x770 [ 36.241849] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.246760] ? common_file_perm+0x4e5/0x850 [ 36.251149] ? tty_fasync+0x300/0x300 [ 36.254935] do_vfs_ioctl+0xcdb/0x12e0 [ 36.258803] ? vfs_write+0x3d7/0x540 [ 36.262495] ? ioctl_preallocate+0x200/0x200 [ 36.266888] ? lock_downgrade+0x720/0x720 [ 36.271035] ? check_preemption_disabled+0x41/0x280 [ 36.276031] ? vfs_write+0x393/0x540 [ 36.279725] ? ksys_write+0x1c8/0x2a0 [ 36.283514] ksys_ioctl+0x9b/0xc0 [ 36.286948] __x64_sys_ioctl+0x6f/0xb0 [ 36.290821] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.295383] do_syscall_64+0xf9/0x620 [ 36.299166] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.304335] RIP: 0033:0x7f260915ed19 executing program [ 36.308033] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 36.326913] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.334602] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 36.341848] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 36.349095] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 36.356345] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.363597] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 36.384535] FAULT_INJECTION: forcing a failure. [ 36.384535] name failslab, interval 1, probability 0, space 0, times 0 [ 36.396758] CPU: 0 PID: 8110 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 36.404771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.414105] Call Trace: [ 36.416680] dump_stack+0x1fc/0x2ef [ 36.420290] should_fail.cold+0xa/0xf [ 36.424077] ? setup_fault_attr+0x200/0x200 [ 36.428379] ? lock_acquire+0x170/0x3c0 [ 36.432336] __should_failslab+0x115/0x180 [ 36.436556] should_failslab+0x5/0x10 [ 36.440338] __kmalloc+0x2ab/0x3c0 [ 36.443858] ? __kfifo_alloc+0x174/0x290 [ 36.447900] __kfifo_alloc+0x174/0x290 [ 36.451775] gsm_dlci_alloc+0xd4/0x410 [ 36.455648] gsm_activate_mux+0x1f4/0x290 [ 36.459777] gsmld_open+0x4fa/0x7e0 [ 36.463382] ? gsmld_close+0x1f0/0x1f0 [ 36.467257] tty_ldisc_open+0x81/0xc0 [ 36.471035] tty_set_ldisc+0x2d2/0x650 [ 36.474928] tty_ioctl+0xb4b/0x1630 [ 36.478537] ? tty_fasync+0x300/0x300 [ 36.482323] ? get_pid_task+0xf4/0x190 [ 36.486194] ? proc_fail_nth_write+0x95/0x1d0 [ 36.490670] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.495580] ? debug_check_no_obj_freed+0x201/0x490 [ 36.500838] ? __vfs_write+0xff/0x770 [ 36.504616] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.509528] ? common_file_perm+0x4e5/0x850 [ 36.513830] ? tty_fasync+0x300/0x300 [ 36.517611] do_vfs_ioctl+0xcdb/0x12e0 [ 36.521651] ? vfs_write+0x3d7/0x540 [ 36.525345] ? ioctl_preallocate+0x200/0x200 [ 36.529733] ? lock_downgrade+0x720/0x720 [ 36.533862] ? check_preemption_disabled+0x41/0x280 [ 36.538861] ? vfs_write+0x393/0x540 [ 36.542561] ? ksys_write+0x1c8/0x2a0 [ 36.546340] ksys_ioctl+0x9b/0xc0 [ 36.549773] __x64_sys_ioctl+0x6f/0xb0 [ 36.553637] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.558199] do_syscall_64+0xf9/0x620 [ 36.561982] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.567149] RIP: 0033:0x7f260915ed19 executing program [ 36.570842] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 36.589899] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.597595] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 36.604845] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 36.612095] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 36.619363] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.626675] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 36.647706] FAULT_INJECTION: forcing a failure. [ 36.647706] name failslab, interval 1, probability 0, space 0, times 0 [ 36.658976] CPU: 1 PID: 8111 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 36.666853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.676199] Call Trace: [ 36.678795] dump_stack+0x1fc/0x2ef [ 36.682406] should_fail.cold+0xa/0xf [ 36.686189] ? setup_fault_attr+0x200/0x200 [ 36.690491] ? lock_acquire+0x170/0x3c0 [ 36.694451] __should_failslab+0x115/0x180 [ 36.698667] should_failslab+0x5/0x10 [ 36.702467] __kmalloc+0x2ab/0x3c0 [ 36.705987] ? __kfifo_alloc+0x174/0x290 [ 36.710026] __kfifo_alloc+0x174/0x290 [ 36.713893] gsm_dlci_alloc+0xd4/0x410 [ 36.717757] gsm_activate_mux+0x1f4/0x290 [ 36.721883] gsmld_open+0x4fa/0x7e0 [ 36.725511] ? gsmld_close+0x1f0/0x1f0 [ 36.729383] tty_ldisc_open+0x81/0xc0 [ 36.733165] tty_set_ldisc+0x2d2/0x650 [ 36.737038] tty_ioctl+0xb4b/0x1630 [ 36.740645] ? tty_fasync+0x300/0x300 [ 36.744440] ? get_pid_task+0xf4/0x190 [ 36.748320] ? proc_fail_nth_write+0x95/0x1d0 [ 36.752799] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.757708] ? debug_check_no_obj_freed+0x201/0x490 [ 36.762713] ? __vfs_write+0xff/0x770 [ 36.766497] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.771424] ? common_file_perm+0x4e5/0x850 [ 36.775726] ? tty_fasync+0x300/0x300 [ 36.779506] do_vfs_ioctl+0xcdb/0x12e0 [ 36.783376] ? vfs_write+0x3d7/0x540 [ 36.787078] ? ioctl_preallocate+0x200/0x200 [ 36.791496] ? lock_downgrade+0x720/0x720 [ 36.795628] ? check_preemption_disabled+0x41/0x280 [ 36.800626] ? vfs_write+0x393/0x540 [ 36.804322] ? ksys_write+0x1c8/0x2a0 [ 36.808103] ksys_ioctl+0x9b/0xc0 [ 36.811544] __x64_sys_ioctl+0x6f/0xb0 [ 36.815498] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.820061] do_syscall_64+0xf9/0x620 [ 36.823841] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.829007] RIP: 0033:0x7f260915ed19 executing program [ 36.832699] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 36.851585] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.859271] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 36.866520] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 36.873785] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 36.881033] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.888293] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 36.902177] FAULT_INJECTION: forcing a failure. [ 36.902177] name failslab, interval 1, probability 0, space 0, times 0 [ 36.913507] CPU: 1 PID: 8112 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 36.921392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.930755] Call Trace: [ 36.933335] dump_stack+0x1fc/0x2ef [ 36.936948] should_fail.cold+0xa/0xf [ 36.940730] ? setup_fault_attr+0x200/0x200 [ 36.945032] ? lock_acquire+0x170/0x3c0 [ 36.948990] __should_failslab+0x115/0x180 [ 36.953230] should_failslab+0x5/0x10 [ 36.957007] __kmalloc+0x2ab/0x3c0 [ 36.960539] ? __kfifo_alloc+0x174/0x290 [ 36.964591] __kfifo_alloc+0x174/0x290 [ 36.968489] gsm_dlci_alloc+0xd4/0x410 [ 36.972370] gsm_activate_mux+0x1f4/0x290 [ 36.976502] gsmld_open+0x4fa/0x7e0 [ 36.980109] ? gsmld_close+0x1f0/0x1f0 [ 36.983975] tty_ldisc_open+0x81/0xc0 [ 36.987754] tty_set_ldisc+0x2d2/0x650 [ 36.991626] tty_ioctl+0xb4b/0x1630 [ 36.995232] ? tty_fasync+0x300/0x300 [ 36.999013] ? get_pid_task+0xf4/0x190 [ 37.002880] ? proc_fail_nth_write+0x95/0x1d0 [ 37.007352] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.012348] ? debug_check_no_obj_freed+0x201/0x490 [ 37.017347] ? __vfs_write+0xff/0x770 [ 37.021128] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.026046] ? common_file_perm+0x4e5/0x850 [ 37.030348] ? tty_fasync+0x300/0x300 [ 37.034128] do_vfs_ioctl+0xcdb/0x12e0 [ 37.037996] ? vfs_write+0x3d7/0x540 [ 37.041692] ? ioctl_preallocate+0x200/0x200 [ 37.046148] ? lock_downgrade+0x720/0x720 [ 37.050299] ? check_preemption_disabled+0x41/0x280 [ 37.055338] ? vfs_write+0x393/0x540 [ 37.059036] ? ksys_write+0x1c8/0x2a0 [ 37.062819] ksys_ioctl+0x9b/0xc0 [ 37.066281] __x64_sys_ioctl+0x6f/0xb0 [ 37.070150] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.074711] do_syscall_64+0xf9/0x620 [ 37.078492] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.083662] RIP: 0033:0x7f260915ed19 executing program [ 37.087363] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 37.106253] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.113943] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 37.121192] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 37.128465] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 37.135894] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 37.143149] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 37.156961] FAULT_INJECTION: forcing a failure. [ 37.156961] name failslab, interval 1, probability 0, space 0, times 0 [ 37.168288] CPU: 1 PID: 8113 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 37.176161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.185584] Call Trace: [ 37.188158] dump_stack+0x1fc/0x2ef [ 37.191772] should_fail.cold+0xa/0xf [ 37.195559] ? setup_fault_attr+0x200/0x200 [ 37.199862] ? lock_acquire+0x170/0x3c0 [ 37.203821] __should_failslab+0x115/0x180 [ 37.208037] should_failslab+0x5/0x10 [ 37.211923] __kmalloc+0x2ab/0x3c0 [ 37.215445] ? __kfifo_alloc+0x174/0x290 [ 37.219486] __kfifo_alloc+0x174/0x290 [ 37.223354] gsm_dlci_alloc+0xd4/0x410 [ 37.227222] gsm_activate_mux+0x1f4/0x290 [ 37.231365] gsmld_open+0x4fa/0x7e0 [ 37.234974] ? gsmld_close+0x1f0/0x1f0 [ 37.238850] tty_ldisc_open+0x81/0xc0 [ 37.242646] tty_set_ldisc+0x2d2/0x650 [ 37.246525] tty_ioctl+0xb4b/0x1630 [ 37.250307] ? tty_fasync+0x300/0x300 [ 37.254088] ? get_pid_task+0xf4/0x190 [ 37.257960] ? proc_fail_nth_write+0x95/0x1d0 [ 37.262443] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.267355] ? debug_check_no_obj_freed+0x201/0x490 [ 37.272349] ? __vfs_write+0xff/0x770 [ 37.276128] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.281212] ? common_file_perm+0x4e5/0x850 [ 37.285532] ? tty_fasync+0x300/0x300 [ 37.289337] do_vfs_ioctl+0xcdb/0x12e0 [ 37.293255] ? vfs_write+0x3d7/0x540 [ 37.296963] ? ioctl_preallocate+0x200/0x200 [ 37.301440] ? lock_downgrade+0x720/0x720 [ 37.305572] ? check_preemption_disabled+0x41/0x280 [ 37.310570] ? vfs_write+0x393/0x540 [ 37.314264] ? ksys_write+0x1c8/0x2a0 [ 37.318045] ksys_ioctl+0x9b/0xc0 [ 37.321481] __x64_sys_ioctl+0x6f/0xb0 [ 37.325350] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.329910] do_syscall_64+0xf9/0x620 [ 37.333694] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.338861] RIP: 0033:0x7f260915ed19 executing program [ 37.342559] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 37.361447] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.369132] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 37.376399] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 37.383671] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 37.390933] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 37.398183] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 37.414919] FAULT_INJECTION: forcing a failure. [ 37.414919] name failslab, interval 1, probability 0, space 0, times 0 [ 37.426330] CPU: 1 PID: 8116 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 37.434192] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.443521] Call Trace: [ 37.446093] dump_stack+0x1fc/0x2ef [ 37.449701] should_fail.cold+0xa/0xf [ 37.453484] ? setup_fault_attr+0x200/0x200 [ 37.457787] ? lock_acquire+0x170/0x3c0 [ 37.461764] __should_failslab+0x115/0x180 [ 37.465979] should_failslab+0x5/0x10 [ 37.469758] __kmalloc+0x2ab/0x3c0 [ 37.473282] ? __kfifo_alloc+0x174/0x290 [ 37.477324] __kfifo_alloc+0x174/0x290 [ 37.481196] gsm_dlci_alloc+0xd4/0x410 [ 37.485064] gsm_activate_mux+0x1f4/0x290 [ 37.489192] gsmld_open+0x4fa/0x7e0 [ 37.492798] ? gsmld_close+0x1f0/0x1f0 [ 37.496665] tty_ldisc_open+0x81/0xc0 [ 37.500459] tty_set_ldisc+0x2d2/0x650 [ 37.504328] tty_ioctl+0xb4b/0x1630 [ 37.507934] ? tty_fasync+0x300/0x300 [ 37.511717] ? get_pid_task+0xf4/0x190 [ 37.515585] ? proc_fail_nth_write+0x95/0x1d0 [ 37.520057] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.524966] ? debug_check_no_obj_freed+0x201/0x490 [ 37.529964] ? __vfs_write+0xff/0x770 [ 37.533742] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.538653] ? common_file_perm+0x4e5/0x850 [ 37.542956] ? tty_fasync+0x300/0x300 [ 37.546735] do_vfs_ioctl+0xcdb/0x12e0 [ 37.550601] ? vfs_write+0x3d7/0x540 [ 37.554294] ? ioctl_preallocate+0x200/0x200 [ 37.558683] ? lock_downgrade+0x720/0x720 [ 37.562816] ? check_preemption_disabled+0x41/0x280 [ 37.567813] ? vfs_write+0x393/0x540 [ 37.571508] ? ksys_write+0x1c8/0x2a0 [ 37.575290] ksys_ioctl+0x9b/0xc0 [ 37.578723] __x64_sys_ioctl+0x6f/0xb0 [ 37.582592] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.587154] do_syscall_64+0xf9/0x620 [ 37.590940] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.596110] RIP: 0033:0x7f260915ed19 executing program [ 37.599804] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 37.618686] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.626388] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 37.633653] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 37.640902] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 37.648152] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 37.655402] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 37.674794] FAULT_INJECTION: forcing a failure. [ 37.674794] name failslab, interval 1, probability 0, space 0, times 0 [ 37.686136] CPU: 1 PID: 8117 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 37.693999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.703417] Call Trace: [ 37.705991] dump_stack+0x1fc/0x2ef [ 37.709598] should_fail.cold+0xa/0xf [ 37.713381] ? setup_fault_attr+0x200/0x200 [ 37.717687] ? lock_acquire+0x170/0x3c0 [ 37.721645] __should_failslab+0x115/0x180 [ 37.726481] should_failslab+0x5/0x10 [ 37.731099] __kmalloc+0x2ab/0x3c0 [ 37.734617] ? __kfifo_alloc+0x174/0x290 [ 37.738658] __kfifo_alloc+0x174/0x290 [ 37.742539] gsm_dlci_alloc+0xd4/0x410 [ 37.746417] gsm_activate_mux+0x1f4/0x290 [ 37.750544] gsmld_open+0x4fa/0x7e0 [ 37.754151] ? gsmld_close+0x1f0/0x1f0 [ 37.758018] tty_ldisc_open+0x81/0xc0 [ 37.761796] tty_set_ldisc+0x2d2/0x650 [ 37.765668] tty_ioctl+0xb4b/0x1630 [ 37.769274] ? tty_fasync+0x300/0x300 [ 37.773057] ? get_pid_task+0xf4/0x190 [ 37.776925] ? proc_fail_nth_write+0x95/0x1d0 [ 37.781401] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.786312] ? debug_check_no_obj_freed+0x201/0x490 [ 37.791483] ? __vfs_write+0xff/0x770 [ 37.795262] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.800258] ? common_file_perm+0x4e5/0x850 [ 37.804557] ? tty_fasync+0x300/0x300 [ 37.808335] do_vfs_ioctl+0xcdb/0x12e0 [ 37.812205] ? vfs_write+0x3d7/0x540 [ 37.815900] ? ioctl_preallocate+0x200/0x200 [ 37.820289] ? lock_downgrade+0x720/0x720 [ 37.824418] ? check_preemption_disabled+0x41/0x280 [ 37.829414] ? vfs_write+0x393/0x540 [ 37.833107] ? ksys_write+0x1c8/0x2a0 [ 37.836888] ksys_ioctl+0x9b/0xc0 [ 37.840333] __x64_sys_ioctl+0x6f/0xb0 [ 37.844201] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.848777] do_syscall_64+0xf9/0x620 [ 37.852559] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.857726] RIP: 0033:0x7f260915ed19 executing program [ 37.861417] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 37.880572] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.888262] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 37.895598] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 37.902846] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 37.910093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 37.917354] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 37.934728] FAULT_INJECTION: forcing a failure. [ 37.934728] name failslab, interval 1, probability 0, space 0, times 0 [ 37.946082] CPU: 1 PID: 8118 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 37.953980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.963323] Call Trace: [ 37.965905] dump_stack+0x1fc/0x2ef [ 37.969521] should_fail.cold+0xa/0xf [ 37.973381] ? setup_fault_attr+0x200/0x200 [ 37.977687] ? lock_acquire+0x170/0x3c0 [ 37.981780] __should_failslab+0x115/0x180 [ 37.986014] should_failslab+0x5/0x10 [ 37.989810] __kmalloc+0x2ab/0x3c0 [ 37.993331] ? __kfifo_alloc+0x174/0x290 [ 37.997378] __kfifo_alloc+0x174/0x290 [ 38.001250] gsm_dlci_alloc+0xd4/0x410 [ 38.005127] gsm_activate_mux+0x1f4/0x290 [ 38.009253] gsmld_open+0x4fa/0x7e0 [ 38.012861] ? gsmld_close+0x1f0/0x1f0 [ 38.016729] tty_ldisc_open+0x81/0xc0 [ 38.020509] tty_set_ldisc+0x2d2/0x650 [ 38.024380] tty_ioctl+0xb4b/0x1630 [ 38.027986] ? tty_fasync+0x300/0x300 [ 38.031779] ? get_pid_task+0xf4/0x190 [ 38.035646] ? proc_fail_nth_write+0x95/0x1d0 [ 38.040123] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.045033] ? debug_check_no_obj_freed+0x201/0x490 [ 38.050035] ? __vfs_write+0xff/0x770 [ 38.053813] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.058723] ? common_file_perm+0x4e5/0x850 [ 38.063028] ? tty_fasync+0x300/0x300 [ 38.066810] do_vfs_ioctl+0xcdb/0x12e0 [ 38.070679] ? vfs_write+0x3d7/0x540 [ 38.074372] ? ioctl_preallocate+0x200/0x200 [ 38.078760] ? lock_downgrade+0x720/0x720 [ 38.082894] ? check_preemption_disabled+0x41/0x280 [ 38.087893] ? vfs_write+0x393/0x540 [ 38.091590] ? ksys_write+0x1c8/0x2a0 [ 38.095374] ksys_ioctl+0x9b/0xc0 [ 38.098807] __x64_sys_ioctl+0x6f/0xb0 [ 38.102693] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.107255] do_syscall_64+0xf9/0x620 [ 38.111038] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.116208] RIP: 0033:0x7f260915ed19 executing program [ 38.119899] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 38.138780] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.146997] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 38.154244] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 38.161491] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 38.168780] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 38.176034] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 38.194919] FAULT_INJECTION: forcing a failure. [ 38.194919] name failslab, interval 1, probability 0, space 0, times 0 [ 38.206211] CPU: 1 PID: 8119 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 38.214071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 38.223402] Call Trace: [ 38.225975] dump_stack+0x1fc/0x2ef [ 38.229596] should_fail.cold+0xa/0xf [ 38.233393] ? setup_fault_attr+0x200/0x200 [ 38.237698] ? lock_acquire+0x170/0x3c0 [ 38.241652] __should_failslab+0x115/0x180 [ 38.245871] should_failslab+0x5/0x10 [ 38.249827] __kmalloc+0x2ab/0x3c0 [ 38.253347] ? __kfifo_alloc+0x174/0x290 [ 38.257389] __kfifo_alloc+0x174/0x290 [ 38.261274] gsm_dlci_alloc+0xd4/0x410 [ 38.265144] gsm_activate_mux+0x1f4/0x290 [ 38.269272] gsmld_open+0x4fa/0x7e0 [ 38.272881] ? gsmld_close+0x1f0/0x1f0 [ 38.276757] tty_ldisc_open+0x81/0xc0 [ 38.280536] tty_set_ldisc+0x2d2/0x650 [ 38.284405] tty_ioctl+0xb4b/0x1630 [ 38.288101] ? tty_fasync+0x300/0x300 [ 38.291882] ? get_pid_task+0xf4/0x190 [ 38.295751] ? proc_fail_nth_write+0x95/0x1d0 [ 38.300300] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.305217] ? debug_check_no_obj_freed+0x201/0x490 [ 38.310228] ? __vfs_write+0xff/0x770 [ 38.314026] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.318949] ? common_file_perm+0x4e5/0x850 [ 38.323261] ? tty_fasync+0x300/0x300 [ 38.327045] do_vfs_ioctl+0xcdb/0x12e0 [ 38.330914] ? vfs_write+0x3d7/0x540 [ 38.334607] ? ioctl_preallocate+0x200/0x200 [ 38.338999] ? lock_downgrade+0x720/0x720 [ 38.343140] ? check_preemption_disabled+0x41/0x280 [ 38.348137] ? vfs_write+0x393/0x540 [ 38.351831] ? ksys_write+0x1c8/0x2a0 [ 38.355614] ksys_ioctl+0x9b/0xc0 [ 38.359048] __x64_sys_ioctl+0x6f/0xb0 [ 38.362914] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.367491] do_syscall_64+0xf9/0x620 [ 38.371279] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.376473] RIP: 0033:0x7f260915ed19 executing program [ 38.380261] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 38.399149] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.406840] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 38.414087] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 38.421333] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 38.428582] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 38.435832] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 38.454634] FAULT_INJECTION: forcing a failure. [ 38.454634] name failslab, interval 1, probability 0, space 0, times 0 [ 38.466094] CPU: 1 PID: 8120 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 38.473961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 38.483296] Call Trace: [ 38.485867] dump_stack+0x1fc/0x2ef [ 38.489567] should_fail.cold+0xa/0xf [ 38.493350] ? setup_fault_attr+0x200/0x200 [ 38.497654] ? lock_acquire+0x170/0x3c0 [ 38.501612] __should_failslab+0x115/0x180 [ 38.505848] should_failslab+0x5/0x10 [ 38.509631] __kmalloc+0x2ab/0x3c0 [ 38.513149] ? __kfifo_alloc+0x174/0x290 [ 38.517194] __kfifo_alloc+0x174/0x290 [ 38.521067] gsm_dlci_alloc+0xd4/0x410 [ 38.524935] gsm_activate_mux+0x1f4/0x290 [ 38.529063] gsmld_open+0x4fa/0x7e0 [ 38.532668] ? gsmld_close+0x1f0/0x1f0 [ 38.536532] tty_ldisc_open+0x81/0xc0 [ 38.540310] tty_set_ldisc+0x2d2/0x650 [ 38.544181] tty_ioctl+0xb4b/0x1630 [ 38.547787] ? tty_fasync+0x300/0x300 [ 38.551598] ? get_pid_task+0xf4/0x190 [ 38.555465] ? proc_fail_nth_write+0x95/0x1d0 [ 38.559939] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.564850] ? debug_check_no_obj_freed+0x201/0x490 [ 38.569849] ? __vfs_write+0xff/0x770 [ 38.573625] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.578533] ? common_file_perm+0x4e5/0x850 [ 38.582835] ? tty_fasync+0x300/0x300 [ 38.586614] do_vfs_ioctl+0xcdb/0x12e0 [ 38.590482] ? vfs_write+0x3d7/0x540 [ 38.594173] ? ioctl_preallocate+0x200/0x200 [ 38.598560] ? lock_downgrade+0x720/0x720 [ 38.602689] ? check_preemption_disabled+0x41/0x280 [ 38.607702] ? vfs_write+0x393/0x540 [ 38.611398] ? ksys_write+0x1c8/0x2a0 [ 38.615181] ksys_ioctl+0x9b/0xc0 [ 38.618614] __x64_sys_ioctl+0x6f/0xb0 [ 38.622483] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.627043] do_syscall_64+0xf9/0x620 [ 38.630825] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.635992] RIP: 0033:0x7f260915ed19 executing program [ 38.639688] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 38.658568] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.666345] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 38.673599] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 38.680848] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 38.688098] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 38.695346] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 38.714761] FAULT_INJECTION: forcing a failure. [ 38.714761] name failslab, interval 1, probability 0, space 0, times 0 [ 38.726249] CPU: 1 PID: 8121 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 38.734205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 38.743537] Call Trace: [ 38.746107] dump_stack+0x1fc/0x2ef [ 38.749715] should_fail.cold+0xa/0xf [ 38.753506] ? setup_fault_attr+0x200/0x200 [ 38.757812] ? lock_acquire+0x1ec/0x3c0 [ 38.761792] __should_failslab+0x115/0x180 [ 38.766017] should_failslab+0x5/0x10 [ 38.769802] __kmalloc+0x2ab/0x3c0 [ 38.773325] ? __kfifo_alloc+0x174/0x290 [ 38.777383] __kfifo_alloc+0x174/0x290 [ 38.781305] gsm_dlci_alloc+0xd4/0x410 [ 38.785184] gsm_activate_mux+0x1f4/0x290 [ 38.789321] gsmld_open+0x4fa/0x7e0 [ 38.792932] ? gsmld_close+0x1f0/0x1f0 [ 38.796805] tty_ldisc_open+0x81/0xc0 [ 38.800587] tty_set_ldisc+0x2d2/0x650 [ 38.804543] tty_ioctl+0xb4b/0x1630 [ 38.808164] ? tty_fasync+0x300/0x300 [ 38.811974] ? get_pid_task+0xf4/0x190 [ 38.815855] ? proc_fail_nth_write+0x95/0x1d0 [ 38.820451] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.825375] ? debug_check_no_obj_freed+0x201/0x490 [ 38.830394] ? __vfs_write+0xff/0x770 [ 38.834180] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.839113] ? common_file_perm+0x4e5/0x850 [ 38.843425] ? tty_fasync+0x300/0x300 [ 38.847214] do_vfs_ioctl+0xcdb/0x12e0 [ 38.851088] ? vfs_write+0x3d7/0x540 [ 38.854796] ? ioctl_preallocate+0x200/0x200 [ 38.859186] ? lock_downgrade+0x720/0x720 [ 38.863316] ? check_preemption_disabled+0x41/0x280 [ 38.868401] ? vfs_write+0x393/0x540 [ 38.872119] ? ksys_write+0x1c8/0x2a0 [ 38.875930] ksys_ioctl+0x9b/0xc0 [ 38.879370] __x64_sys_ioctl+0x6f/0xb0 [ 38.883253] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.887815] do_syscall_64+0xf9/0x620 [ 38.891600] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.896768] RIP: 0033:0x7f260915ed19 executing program [ 38.900460] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 38.919521] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.927311] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 38.934559] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 38.941846] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 38.949130] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 38.956384] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 38.974458] FAULT_INJECTION: forcing a failure. [ 38.974458] name failslab, interval 1, probability 0, space 0, times 0 [ 38.985948] CPU: 1 PID: 8122 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 38.993817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 39.003151] Call Trace: [ 39.005908] dump_stack+0x1fc/0x2ef [ 39.009521] should_fail.cold+0xa/0xf [ 39.013307] ? setup_fault_attr+0x200/0x200 [ 39.017610] ? lock_acquire+0x170/0x3c0 [ 39.021564] __should_failslab+0x115/0x180 [ 39.025784] should_failslab+0x5/0x10 [ 39.029565] __kmalloc+0x2ab/0x3c0 [ 39.033193] ? __kfifo_alloc+0x174/0x290 [ 39.037270] __kfifo_alloc+0x174/0x290 [ 39.041145] gsm_dlci_alloc+0xd4/0x410 [ 39.045016] gsm_activate_mux+0x1f4/0x290 [ 39.049141] gsmld_open+0x4fa/0x7e0 [ 39.052757] ? gsmld_close+0x1f0/0x1f0 [ 39.056626] tty_ldisc_open+0x81/0xc0 [ 39.060405] tty_set_ldisc+0x2d2/0x650 [ 39.064275] tty_ioctl+0xb4b/0x1630 [ 39.067883] ? tty_fasync+0x300/0x300 [ 39.071679] ? get_pid_task+0xf4/0x190 [ 39.075558] ? proc_fail_nth_write+0x95/0x1d0 [ 39.080046] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.084960] ? debug_check_no_obj_freed+0x201/0x490 [ 39.089969] ? __vfs_write+0xff/0x770 [ 39.093864] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.098785] ? common_file_perm+0x4e5/0x850 [ 39.103089] ? tty_fasync+0x300/0x300 [ 39.106876] do_vfs_ioctl+0xcdb/0x12e0 [ 39.110752] ? vfs_write+0x3d7/0x540 [ 39.114446] ? ioctl_preallocate+0x200/0x200 [ 39.118953] ? lock_downgrade+0x720/0x720 [ 39.123095] ? check_preemption_disabled+0x41/0x280 [ 39.128134] ? vfs_write+0x393/0x540 [ 39.131838] ? ksys_write+0x1c8/0x2a0 [ 39.135627] ksys_ioctl+0x9b/0xc0 [ 39.139068] __x64_sys_ioctl+0x6f/0xb0 [ 39.142965] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.147541] do_syscall_64+0xf9/0x620 [ 39.151326] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.156496] RIP: 0033:0x7f260915ed19 executing program [ 39.160245] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 39.179126] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.186817] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 39.194070] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 39.201319] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 39.208568] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 39.215818] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 39.237425] FAULT_INJECTION: forcing a failure. [ 39.237425] name failslab, interval 1, probability 0, space 0, times 0 [ 39.249202] CPU: 0 PID: 8123 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 39.257066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 39.266401] Call Trace: [ 39.269066] dump_stack+0x1fc/0x2ef [ 39.272694] should_fail.cold+0xa/0xf [ 39.276482] ? setup_fault_attr+0x200/0x200 [ 39.280785] ? lock_acquire+0x170/0x3c0 [ 39.284742] __should_failslab+0x115/0x180 [ 39.288962] should_failslab+0x5/0x10 [ 39.292741] kmem_cache_alloc_trace+0x284/0x380 [ 39.297395] tty_register_device_attr+0x21c/0x7a0 [ 39.302224] ? redirected_tty_write+0xb0/0xb0 [ 39.306699] ? __lockdep_init_map+0x100/0x5a0 [ 39.311174] ? __raw_spin_lock_init+0x28/0x100 [ 39.315735] ? tty_port_init+0x14d/0x1b0 [ 39.319776] ? gsm_dlci_alloc+0x353/0x410 [ 39.323906] gsmld_open+0x55f/0x7e0 [ 39.327513] ? gsmld_close+0x1f0/0x1f0 [ 39.331381] tty_ldisc_open+0x81/0xc0 [ 39.335165] tty_set_ldisc+0x2d2/0x650 [ 39.339035] tty_ioctl+0xb4b/0x1630 [ 39.342650] ? tty_fasync+0x300/0x300 [ 39.346542] ? get_pid_task+0xf4/0x190 [ 39.350409] ? proc_fail_nth_write+0x95/0x1d0 [ 39.354887] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.359801] ? debug_check_no_obj_freed+0x201/0x490 [ 39.364800] ? __vfs_write+0xff/0x770 [ 39.368586] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.373497] ? common_file_perm+0x4e5/0x850 [ 39.377805] ? tty_fasync+0x300/0x300 [ 39.381584] do_vfs_ioctl+0xcdb/0x12e0 [ 39.385454] ? vfs_write+0x3d7/0x540 [ 39.389148] ? ioctl_preallocate+0x200/0x200 [ 39.393537] ? lock_downgrade+0x720/0x720 [ 39.397671] ? check_preemption_disabled+0x41/0x280 [ 39.402676] ? vfs_write+0x393/0x540 [ 39.406373] ? ksys_write+0x1c8/0x2a0 [ 39.410168] ksys_ioctl+0x9b/0xc0 [ 39.413609] __x64_sys_ioctl+0x6f/0xb0 [ 39.417475] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.422039] do_syscall_64+0xf9/0x620 [ 39.425826] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.431257] RIP: 0033:0x7f260915ed19 [ 39.435036] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 39.453915] RSP: 002b:00007fff27f8da48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.461602] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f260915ed19 [ 39.468944] RDX: 0000000020000000 RSI: 0000000000005423 RDI: 0000000000000003 [ 39.476204] RBP: 00007fff27f8da60 R08: 0000000000000001 R09: 00007fff27f8d9e0 [ 39.483547] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 39.490796] R13: 431bde82d7b634db R14: 00007fff27f8da90 R15: 00007fff27f8da70 [ 39.568172] kasan: CONFIG_KASAN_INLINE enabled [ 39.577113] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.593215] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 39.599469] CPU: 1 PID: 8123 Comm: syz-executor335 Not tainted 4.19.211-syzkaller #0 [ 39.607345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 39.616705] RIP: 0010:cdev_del+0x22/0x90 [ 39.620765] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 b3 dc be ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 39.639702] RSP: 0018:ffff8880ab90fba0 EFLAGS: 00010207 [ 39.645068] RAX: dffffc0000000000 RBX: ffff888238854200 RCX: ffffffff83b8674f [ 39.652337] RDX: 000000000000000c RSI: ffffffff81a3a8bd RDI: 0000000000000064 [ 39.659601] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 39.666866] R10: 0000000000000007 R11: 0000000000000000 R12: ffff888238854208 [ 39.674136] R13: ffff8882389194c8 R14: ffff8880b2b05180 R15: ffff8880a17fb278 [ 39.681404] FS: 0000555555a4d300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 39.689622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.695488] CR2: 00007ffcbe4c3ff8 CR3: 00000000ab85e000 CR4: 00000000003406e0 [ 39.702743] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.709996] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.717249] Call Trace: [ 39.719834] tty_unregister_device+0x112/0x1b0 [ 39.724398] gsmld_close+0xaa/0x1f0 [ 39.728008] ? gsm_cleanup_mux+0x3e0/0x3e0 [ 39.732226] tty_ldisc_close+0xa2/0xd0 [ 39.736093] tty_ldisc_release+0xf5/0x440 [ 39.740254] tty_release_struct+0x20/0xe0 [ 39.744401] tty_release+0xc70/0x1210 [ 39.748209] ? do_tty_hangup+0x30/0x30 [ 39.752080] __fput+0x2ce/0x890 [ 39.755348] task_work_run+0x148/0x1c0 [ 39.759221] do_exit+0xbf3/0x2be0 [ 39.762657] ? lock_downgrade+0x720/0x720 [ 39.766878] ? mm_update_next_owner+0x650/0x650 [ 39.771529] ? up_read+0x17/0x110 [ 39.775146] ? __do_page_fault+0x180/0xd60 [ 39.779367] do_group_exit+0x125/0x310 [ 39.783239] __x64_sys_exit_group+0x3a/0x50 [ 39.787543] do_syscall_64+0xf9/0x620 [ 39.791328] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.796499] RIP: 0033:0x7f260915d999 [ 39.800195] Code: Bad RIP value. [ 39.803538] RSP: 002b:00007fff27f8d9f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 39.811250] RAX: ffffffffffffffda RBX: 00007f26091ca3d0 RCX: 00007f260915d999 [ 39.818506] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 39.825758] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 00007fff27f8d9e0 [ 39.833008] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f26091ca3d0 [ 39.840277] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 39.847537] Modules linked in: [ 39.861423] ---[ end trace e9039540c0a5475d ]--- [ 39.866251] RIP: 0010:cdev_del+0x22/0x90 [ 39.870509] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 b3 dc be ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 39.890389] RSP: 0018:ffff8880ab90fba0 EFLAGS: 00010207 [ 39.895807] RAX: dffffc0000000000 RBX: ffff888238854200 RCX: ffffffff83b8674f [ 39.905000] RDX: 000000000000000c RSI: ffffffff81a3a8bd RDI: 0000000000000064 [ 39.912427] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 39.919688] R10: 0000000000000007 R11: 0000000000000000 R12: ffff888238854208 [ 39.927001] R13: ffff8882389194c8 R14: ffff8880b2b05180 R15: ffff8880a17fb278 [ 39.934322] FS: 0000555555a4d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 39.942711] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.948602] CR2: 000055f012cbe160 CR3: 000000009b233000 CR4: 00000000003406f0 [ 39.955914] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.963224] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.970484] Kernel panic - not syncing: Fatal exception [ 39.976143] Kernel Offset: disabled [ 39.979754] Rebooting in 86400 seconds..