[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 78.463074][ T27] audit: type=1800 audit(1578787723.901:25): pid=9483 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 78.482971][ T27] audit: type=1800 audit(1578787723.901:26): pid=9483 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 78.547823][ T27] audit: type=1800 audit(1578787723.901:27): pid=9483 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 '10.128.0.191' (ECDSA) to the list of known hosts. syzkaller login: [ 96.871474][ T9645] IPVS: ftp: loaded support on port[0] = 21 [ 96.875004][ T9644] IPVS: ftp: loaded support on port[0] = 21 [ 96.882056][ T9643] IPVS: ftp: loaded support on port[0] = 21 [ 96.888447][ T9642] IPVS: ftp: loaded support on port[0] = 21 [ 96.894410][ T9647] IPVS: ftp: loaded support on port[0] = 21 [ 96.897746][ T9646] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 98.986899][ T9970] ------------[ cut here ]------------ [ 98.992387][ T9970] DEBUG_LOCKS_WARN_ON(1) [ 98.992517][ T9970] WARNING: CPU: 1 PID: 9970 at kernel/locking/lockdep.c:167 __lock_acquire+0x21dd/0x4a00 [ 99.006536][ T9970] Kernel panic - not syncing: panic_on_warn set ... [ 99.013122][ T9970] CPU: 1 PID: 9970 Comm: syz-executor719 Not tainted 5.5.0-rc5-next-20200110-syzkaller #0 [ 99.022998][ T9970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.033058][ T9970] Call Trace: [ 99.036441][ T9970] dump_stack+0x197/0x210 [ 99.040750][ T9970] ? __lock_acquire+0x20e0/0x4a00 [ 99.045753][ T9970] panic+0x2e3/0x75c [ 99.049625][ T9970] ? add_taint.cold+0x16/0x16 [ 99.054280][ T9970] ? __kasan_check_write+0x14/0x20 [ 99.059368][ T9970] ? __warn.cold+0x14/0x3e [ 99.063759][ T9970] ? __warn+0xd9/0x1cf [ 99.067804][ T9970] ? __lock_acquire+0x21dd/0x4a00 [ 99.072801][ T9970] __warn.cold+0x2f/0x3e [ 99.077061][ T9970] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 99.082753][ T9970] ? __lock_acquire+0x21dd/0x4a00 [ 99.087781][ T9970] report_bug+0x289/0x300 [ 99.092097][ T9970] do_error_trap+0x11b/0x200 [ 99.096672][ T9970] do_invalid_op+0x37/0x50 [ 99.101066][ T9970] ? __lock_acquire+0x21dd/0x4a00 [ 99.106070][ T9970] invalid_op+0x23/0x30 [ 99.110240][ T9970] RIP: 0010:__lock_acquire+0x21dd/0x4a00 [ 99.115847][ T9970] Code: 05 98 39 4a 09 85 c0 75 a0 48 c7 c6 e0 91 4b 88 48 c7 c7 20 92 4b 88 4c 89 9d 30 ff ff ff 4c 89 95 70 ff ff ff e8 b2 ff ea ff <0f> 0b 31 db 4c 8b 95 70 ff ff ff 4c 8b 9d 30 ff ff ff e9 22 f8 ff [ 99.135427][ T9970] RSP: 0018:ffffc90002d87738 EFLAGS: 00010086 [ 99.141467][ T9970] RAX: 0000000000000000 RBX: 00000000000005e3 RCX: 0000000000000000 [ 99.149455][ T9970] RDX: 0000000040000000 RSI: ffffffff815e8546 RDI: fffff520005b0ed9 [ 99.157401][ T9970] RBP: ffffc90002d87850 R08: ffff8880903f8380 R09: fffffbfff13748ed [ 99.165349][ T9970] R10: fffffbfff13748ec R11: ffffffff89ba4763 R12: 000000009ecb23e7 [ 99.173309][ T9970] R13: ffffffff8aa50270 R14: ffff8880903f8c48 R15: 0000000000000000 [ 99.181267][ T9970] ? vprintk_func+0x86/0x189 [ 99.185834][ T9970] ? __lock_acquire+0x21dd/0x4a00 [ 99.190832][ T9970] ? mark_held_locks+0xf0/0xf0 [ 99.195572][ T9970] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.201790][ T9970] ? debug_smp_processor_id+0x33/0x18a [ 99.207238][ T9970] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 99.213366][ T9970] lock_acquire+0x190/0x410 [ 99.217841][ T9970] ? finish_task_switch+0x119/0x750 [ 99.223013][ T9970] finish_task_switch+0x13f/0x750 [ 99.228013][ T9970] ? finish_task_switch+0x119/0x750 [ 99.233185][ T9970] __schedule+0x93c/0x1f90 [ 99.237574][ T9970] ? firmware_map_remove+0x1a4/0x1a4 [ 99.242834][ T9970] ? preempt_schedule_irq+0x8d/0x160 [ 99.248101][ T9970] ? lockdep_hardirqs_on+0x421/0x5e0 [ 99.253376][ T9970] ? trace_hardirqs_on+0x67/0x240 [ 99.258375][ T9970] preempt_schedule_irq+0xb5/0x160 [ 99.263460][ T9970] retint_kernel+0x1b/0x2b [ 99.267848][ T9970] RIP: 0010:lock_acquire+0x20b/0x410 [ 99.273117][ T9970] Code: 9c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 d3 01 00 00 48 83 3d a9 a4 58 08 00 0f 84 53 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b [ 99.292691][ T9970] RSP: 0018:ffffc90002d87ae0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 99.301087][ T9970] RAX: 1ffffffff13675eb RBX: ffff8880903f8380 RCX: ffffffff815ad05a [ 99.309048][ T9970] RDX: dffffc0000000000 RSI: 0000000000000004 RDI: 0000000000000286 [ 99.317044][ T9970] RBP: ffffc90002d87b28 R08: 0000000000000004 R09: fffffbfff1708c51 [ 99.325026][ T9970] R10: fffffbfff1708c50 R11: ffff8880903f8380 R12: ffff888094a93d28 [ 99.332972][ T9970] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 99.340941][ T9970] ? __lock_acquire+0x293a/0x4a00 [ 99.345945][ T9970] flush_workqueue+0x126/0x14c0 [ 99.350774][ T9970] ? flush_workqueue+0xf7/0x14c0 [ 99.355708][ T9970] ? hci_dev_get+0xda/0x110 [ 99.360192][ T9970] ? find_held_lock+0x35/0x130 [ 99.364938][ T9970] ? hci_dev_get+0xda/0x110 [ 99.369423][ T9970] ? pwq_unbound_release_workfn+0x2f0/0x2f0 [ 99.375312][ T9970] ? __kasan_check_write+0x14/0x20 [ 99.380401][ T9970] ? do_raw_read_unlock+0x3f/0x70 [ 99.385446][ T9970] hci_dev_open+0xe0/0x280 [ 99.389849][ T9970] ? hci_dev_open+0xe0/0x280 [ 99.394431][ T9970] hci_sock_bind+0x4bf/0x12d0 [ 99.399082][ T9970] ? hci_sock_compat_ioctl+0x80/0x80 [ 99.404348][ T9970] ? apparmor_socket_bind+0xb6/0x160 [ 99.409609][ T9970] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.415823][ T9970] ? security_socket_bind+0x8d/0xc0 [ 99.420997][ T9970] __sys_bind+0x239/0x290 [ 99.425301][ T9970] ? __ia32_sys_socketpair+0xf0/0xf0 [ 99.430578][ T9970] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 99.436552][ T9970] ? __x64_sys_futex+0x404/0x590 [ 99.441476][ T9970] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 99.446922][ T9970] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 99.452354][ T9970] ? do_syscall_64+0x26/0x790 [ 99.457004][ T9970] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.463044][ T9970] ? do_syscall_64+0x26/0x790 [ 99.467693][ T9970] __x64_sys_bind+0x73/0xb0 [ 99.472173][ T9970] do_syscall_64+0xfa/0x790 [ 99.476650][ T9970] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.482527][ T9970] RIP: 0033:0x4483b9 [ 99.486400][ T9970] Code: e8 9c e6 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 3b 05 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 99.506287][ T9970] RSP: 002b:00007fb43a523d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 99.514716][ T9970] RAX: ffffffffffffffda RBX: 00000000006e4a18 RCX: 00000000004483b9 [ 99.522677][ T9970] RDX: 0000000000000006 RSI: 00000000200007c0 RDI: 0000000000000004 [ 99.530751][ T9970] RBP: 00000000006e4a10 R08: 0000000000000000 R09: 0000000000000000 [ 99.538701][ T9970] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e4a1c [ 99.546651][ T9970] R13: 00007ffc78f07a4f R14: 00007fb43a5249c0 R15: 20c49ba5e353f7cf [ 100.669582][ T9970] Shutting down cpus with NMI [ 100.675532][ T9970] Kernel Offset: disabled [ 100.679865][ T9970] Rebooting in 86400 seconds..