[ 36.978832][ T26] audit: type=1800 audit(1546928283.286:28): pid=7688 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 37.600625][ T26] audit: type=1800 audit(1546928283.986:29): pid=7688 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 37.666535][ T7688] startpar (7688) used greatest stack depth: 19848 bytes left [....] startpar: service(s) returned failure: rsyslog ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.86' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.825606][ T7862] ------------[ cut here ]------------ [ 44.831193][ T7862] IRQs not disabled as expected [ 44.836262][ T7862] WARNING: CPU: 0 PID: 7862 at fs/eventpoll.c:1224 ep_poll_callback+0x77e/0x1450 [ 44.845598][ T7862] Kernel panic - not syncing: panic_on_warn set ... [ 44.852161][ T7862] CPU: 0 PID: 7862 Comm: syz-executor245 Not tainted 5.0.0-rc1-next-20190108 #7 [ 44.861152][ T7862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.871196][ T7862] Call Trace: [ 44.874475][ T7862] dump_stack+0x1db/0x2d0 [ 44.878784][ T7862] ? dump_stack_print_info.cold+0x20/0x20 [ 44.884487][ T7862] ? ep_poll_callback+0x6f0/0x1450 [ 44.889585][ T7862] panic+0x2cb/0x65c [ 44.893492][ T7862] ? add_taint.cold+0x16/0x16 [ 44.898161][ T7862] ? ep_poll_callback+0x77e/0x1450 [ 44.903253][ T7862] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.909469][ T7862] ? __probe_kernel_read+0x1f4/0x250 [ 44.914751][ T7862] ? __warn.cold+0x5/0x48 [ 44.919060][ T7862] ? __warn+0xe8/0x1d0 [ 44.923137][ T7862] ? ep_poll_callback+0x77e/0x1450 [ 44.928336][ T7862] __warn.cold+0x20/0x48 [ 44.932557][ T7862] ? ep_poll_callback+0x77e/0x1450 [ 44.937647][ T7862] report_bug+0x263/0x2b0 [ 44.941971][ T7862] do_error_trap+0x11b/0x200 [ 44.946554][ T7862] do_invalid_op+0x37/0x50 [ 44.950946][ T7862] ? ep_poll_callback+0x77e/0x1450 [ 44.956043][ T7862] invalid_op+0x14/0x20 [ 44.960178][ T7862] RIP: 0010:ep_poll_callback+0x77e/0x1450 [ 44.965888][ T7862] Code: ff 44 89 ee e8 63 84 98 ff 45 84 ed 0f 85 4a fa ff ff e8 15 83 98 ff 48 c7 c7 00 69 56 88 c6 05 a1 b2 6e 08 01 e8 52 c8 61 ff <0f> 0b e9 2b fa ff ff e8 f6 82 98 ff 48 8d 7b 30 48 b8 00 00 00 00 [ 44.985468][ T7862] RSP: 0018:ffff8880924ff6a0 EFLAGS: 00010282 [ 44.991519][ T7862] RAX: 0000000000000000 RBX: ffff88809241f480 RCX: 0000000000000000 [ 44.999578][ T7862] RDX: 0000000000000000 RSI: ffffffff816869f6 RDI: 0000000000000005 [ 45.007527][ T7862] RBP: ffff8880924ff880 R08: ffff888099776640 R09: ffff888099776f30 [ 45.015489][ T7862] R10: ffff888099776640 R11: 0000000000000000 R12: ffff8880924ff858 [ 45.023435][ T7862] R13: 0000000000000000 R14: ffff88809241f4d0 R15: 0000000000000000 [ 45.031413][ T7862] ? vprintk_func+0x86/0x189 [ 45.036001][ T7862] ? ep_send_events_proc+0xfa0/0xfa0 [ 45.041270][ T7862] ? lock_acquire+0x1db/0x570 [ 45.045925][ T7862] ? trace_hardirqs_off+0xb8/0x310 [ 45.051027][ T7862] ? add_lock_to_list.isra.0+0x450/0x450 [ 45.056655][ T7862] ? add_lock_to_list.isra.0+0x450/0x450 [ 45.062276][ T7862] ? do_raw_spin_trylock+0x270/0x270 [ 45.067538][ T7862] ? unwind_get_return_address+0x61/0xa0 [ 45.073150][ T7862] ? __lock_is_held+0xb6/0x140 [ 45.077908][ T7862] __wake_up_common+0x1d3/0x7d0 [ 45.082737][ T7862] ? do_wait_intr+0x3c0/0x3c0 [ 45.087391][ T7862] ? rwlock_bug.part.0+0x90/0x90 [ 45.092306][ T7862] ? print_usage_bug+0xd0/0xd0 [ 45.097085][ T7862] ? do_raw_spin_unlock+0xa0/0x330 [ 45.102196][ T7862] __wake_up_locked+0x11/0x20 [ 45.106847][ T7862] fuse_abort_conn+0xd01/0x1200 [ 45.111684][ T7862] ? end_requests+0x420/0x420 [ 45.116365][ T7862] ? trace_hardirqs_on+0xbd/0x310 [ 45.121381][ T7862] ? unregister_shrinker+0x26e/0x460 [ 45.126650][ T7862] ? __kasan_slab_free+0x119/0x150 [ 45.131741][ T7862] ? unregister_shrinker+0x26e/0x460 [ 45.137011][ T7862] ? unregister_shrinker+0x296/0x460 [ 45.142272][ T7862] ? prepare_kswapd_sleep+0x220/0x220 [ 45.147627][ T7862] fuse_sb_destroy+0xd3/0x1d0 [ 45.152279][ T7862] fuse_kill_sb_anon+0x16/0x30 [ 45.157122][ T7862] deactivate_locked_super+0x9a/0x100 [ 45.162494][ T7862] deactivate_super+0x2ab/0x320 [ 45.167360][ T7862] ? mount_ns+0x1d0/0x1d0 [ 45.171678][ T7862] ? cpumask_next+0x41/0x50 [ 45.176161][ T7862] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 45.181879][ T7862] ? mnt_get_writers.isra.0+0xf9/0x150 [ 45.187331][ T7862] cleanup_mnt+0xbf/0x160 [ 45.191637][ T7862] __cleanup_mnt+0x16/0x20 [ 45.196036][ T7862] task_work_run+0x1f4/0x2b0 [ 45.200621][ T7862] ? task_work_cancel+0x2c0/0x2c0 [ 45.205633][ T7862] ? do_syscall_64+0x8c/0x800 [ 45.210289][ T7862] exit_to_usermode_loop+0x32a/0x3b0 [ 45.215574][ T7862] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.221625][ T7862] ? syscall_trace_enter+0x12a0/0x12a0 [ 45.227062][ T7862] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 45.232514][ T7862] do_syscall_64+0x696/0x800 [ 45.237082][ T7862] ? syscall_return_slowpath+0x5f0/0x5f0 [ 45.242692][ T7862] ? prepare_exit_to_usermode+0x232/0x3b0 [ 45.248388][ T7862] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.253944][ T7862] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.259834][ T7862] RIP: 0033:0x440229 [ 45.263719][ T7862] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 45.283317][ T7862] RSP: 002b:00007fffbe5bdb08 EFLAGS: 00000217 ORIG_RAX: 00000000000000a6 [ 45.291710][ T7862] RAX: 0000000000000000 RBX: 00000000004002c8 RCX: 0000000000440229 [ 45.299673][ T7862] RDX: 0000000000440229 RSI: 0000000000000000 RDI: 0000000020000040 [ 45.307623][ T7862] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 45.315570][ T7862] R10: 00000000004002c8 R11: 0000000000000217 R12: 0000000000401ab0 [ 45.323517][ T7862] R13: 0000000000401b40 R14: 0000000000000000 R15: 0000000000000000 [ 45.332895][ T7862] Kernel Offset: disabled [ 45.337301][ T7862] Rebooting in 86400 seconds..