[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.13' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.505492] FAULT_INJECTION: forcing a failure. [ 33.505492] name failslab, interval 1, probability 0, space 0, times 1 [ 33.516803] CPU: 0 PID: 8092 Comm: syz-executor329 Not tainted 4.19.211-syzkaller #0 [ 33.524693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.534037] Call Trace: [ 33.536624] dump_stack+0x1fc/0x2ef [ 33.540244] should_fail.cold+0xa/0xf [ 33.544049] ? setup_fault_attr+0x200/0x200 [ 33.548354] ? lock_acquire+0x170/0x3c0 [ 33.552314] __should_failslab+0x115/0x180 [ 33.556534] should_failslab+0x5/0x10 [ 33.560316] __kmalloc+0x2ab/0x3c0 [ 33.563838] ? tracepoint_add_func+0x397/0xb90 [ 33.568403] tracepoint_add_func+0x397/0xb90 [ 33.572795] ? blk_add_trace_bio_backmerge+0x30/0x30 [ 33.577879] tracepoint_probe_register+0xa1/0xf0 [ 33.582626] ? tracepoint_module_notify+0x5f0/0x5f0 [ 33.587730] ? blk_add_trace_bio_backmerge+0x30/0x30 [ 33.592813] ? relay_open+0x670/0x9f0 [ 33.596597] blk_register_tracepoints+0x156/0x2e0 [ 33.601419] do_blk_trace_setup+0x915/0xb40 [ 33.605739] ? _copy_from_user+0xd2/0x130 [ 33.609867] __blk_trace_setup+0xca/0x180 [ 33.613995] ? do_blk_trace_setup+0xb40/0xb40 [ 33.618474] ? get_pid_task+0xcd/0x190 [ 33.622349] blk_trace_setup+0x43/0x60 [ 33.626220] sg_ioctl+0x270/0x2720 [ 33.629742] ? get_pid_task+0xf4/0x190 [ 33.633641] ? proc_fail_nth_write+0x95/0x1d0 [ 33.638144] ? sg_write+0xa0/0xa0 [ 33.641587] ? debug_check_no_obj_freed+0x201/0x490 [ 33.646596] ? __vfs_write+0xff/0x770 [ 33.650388] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.655304] ? common_file_perm+0x4e5/0x850 [ 33.659609] ? sg_write+0xa0/0xa0 [ 33.663047] do_vfs_ioctl+0xcdb/0x12e0 [ 33.666936] ? vfs_write+0x3d7/0x540 [ 33.670634] ? ioctl_preallocate+0x200/0x200 [ 33.675030] ? lock_downgrade+0x720/0x720 [ 33.679170] ? check_preemption_disabled+0x41/0x280 [ 33.684172] ? vfs_write+0x393/0x540 [ 33.687887] ? ksys_write+0x1c8/0x2a0 [ 33.691673] ksys_ioctl+0x9b/0xc0 [ 33.695112] __x64_sys_ioctl+0x6f/0xb0 [ 33.698980] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 33.703543] do_syscall_64+0xf9/0x620 [ 33.707328] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.712501] RIP: 0033:0x7f066e52ccd9 [ 33.716211] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 33.735101] RSP: 002b:00007ffdf1b3cc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.742790] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f066e52ccd9 [ 33.750040] RDX: 0000000020000140 RSI: 00000000c0481273 RDI: 0000000000000003 [ 33.757293] RBP: 00007ffdf1b3cc60 R08: 0000000000000002 R09: 00007f066e003833 [ 33.764564] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 33.771901] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.780010] ------------[ cut here ]------------ [ 33.785006] WARNING: CPU: 0 PID: 8092 at kernel/trace/blktrace.c:1172 blk_register_tracepoints.cold+0xe9/0x180 [ 33.795148] Kernel panic - not syncing: panic_on_warn set ... [ 33.795148] [ 33.802507] CPU: 0 PID: 8092 Comm: syz-executor329 Not tainted 4.19.211-syzkaller #0 [ 33.810364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.819709] Call Trace: [ 33.822295] dump_stack+0x1fc/0x2ef [ 33.825912] panic+0x26a/0x50e [ 33.829083] ? __warn_printk+0xf3/0xf3 [ 33.832956] ? blk_register_tracepoints.cold+0xe9/0x180 [ 33.838406] ? __probe_kernel_read+0x130/0x1b0 [ 33.842986] ? __warn.cold+0x5/0x5a [ 33.846592] ? __warn+0xe4/0x200 [ 33.849939] ? blk_register_tracepoints.cold+0xe9/0x180 [ 33.855281] __warn.cold+0x20/0x5a [ 33.858803] ? blk_register_tracepoints.cold+0xe9/0x180 [ 33.864243] report_bug+0x262/0x2b0 [ 33.867859] do_error_trap+0x1d7/0x310 [ 33.871726] ? math_error+0x310/0x310 [ 33.875508] ? __irq_work_queue_local+0x101/0x160 [ 33.880336] ? irq_work_queue+0x29/0x80 [ 33.884294] ? error_entry+0x72/0xd0 [ 33.887993] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.893000] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.897828] invalid_op+0x14/0x20 [ 33.901267] RIP: 0010:blk_register_tracepoints.cold+0xe9/0x180 [ 33.907234] Code: f9 e8 61 39 6e f9 48 c7 c7 a0 c5 6e 88 e8 c0 6a ff ff 0f 0b e9 74 a1 73 f9 e8 49 39 6e f9 48 c7 c7 a0 c5 6e 88 e8 a8 6a ff ff <0f> 0b e9 2f a1 73 f9 e8 31 39 6e f9 48 c7 c7 a0 c5 6e 88 e8 90 6a [ 33.926133] RSP: 0018:ffff8880b2467a70 EFLAGS: 00010286 [ 33.931474] RAX: 0000000000000024 RBX: 00000000fffffff4 RCX: 0000000000000000 [ 33.938739] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed101648cf40 [ 33.945986] RBP: ffff8880b3e54cc0 R08: 0000000000000024 R09: 0000000000000000 [ 33.953345] R10: 0000000000000005 R11: 0000000000000000 R12: 00000000fffffff0 [ 33.960612] R13: 0000000000000000 R14: ffff8880b3e54cf0 R15: 0000000000000000 [ 33.967875] ? vprintk_func+0x81/0x180 [ 33.971753] do_blk_trace_setup+0x915/0xb40 [ 33.976073] ? _copy_from_user+0xd2/0x130 [ 33.980208] __blk_trace_setup+0xca/0x180 [ 33.984335] ? do_blk_trace_setup+0xb40/0xb40 [ 33.988816] ? get_pid_task+0xcd/0x190 [ 33.992696] blk_trace_setup+0x43/0x60 [ 33.996564] sg_ioctl+0x270/0x2720 [ 34.000087] ? get_pid_task+0xf4/0x190 [ 34.003974] ? proc_fail_nth_write+0x95/0x1d0 [ 34.008449] ? sg_write+0xa0/0xa0 [ 34.011887] ? debug_check_no_obj_freed+0x201/0x490 [ 34.016889] ? __vfs_write+0xff/0x770 [ 34.020669] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.025603] ? common_file_perm+0x4e5/0x850 [ 34.029913] ? sg_write+0xa0/0xa0 [ 34.033354] do_vfs_ioctl+0xcdb/0x12e0 [ 34.037225] ? vfs_write+0x3d7/0x540 [ 34.040947] ? ioctl_preallocate+0x200/0x200 [ 34.045356] ? lock_downgrade+0x720/0x720 [ 34.049496] ? check_preemption_disabled+0x41/0x280 [ 34.054501] ? vfs_write+0x393/0x540 [ 34.058199] ? ksys_write+0x1c8/0x2a0 [ 34.061980] ksys_ioctl+0x9b/0xc0 [ 34.065416] __x64_sys_ioctl+0x6f/0xb0 [ 34.069286] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.073849] do_syscall_64+0xf9/0x620 [ 34.077653] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.082825] RIP: 0033:0x7f066e52ccd9 [ 34.086534] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 34.105417] RSP: 002b:00007ffdf1b3cc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.113105] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f066e52ccd9 [ 34.120355] RDX: 0000000020000140 RSI: 00000000c0481273 RDI: 0000000000000003 [ 34.127703] RBP: 00007ffdf1b3cc60 R08: 0000000000000002 R09: 00007f066e003833 [ 34.134949] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.142196] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.149779] Kernel Offset: disabled [ 34.153444] Rebooting in 86400 seconds..