[info] Using makefile-style concurrent boot in runlevel 2. [ 25.854524] audit: type=1800 audit(1543097185.013:21): pid=5810 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.883795] audit: type=1800 audit(1543097185.023:22): pid=5810 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.0.14' (ECDSA) to the list of known hosts. 2018/11/24 22:07:11 parsed 1 programs 2018/11/24 22:07:12 executed programs: 0 syzkaller login: [ 73.531091] IPVS: ftp: loaded support on port[0] = 21 [ 73.759209] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.765795] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.772900] device bridge_slave_0 entered promiscuous mode [ 73.790503] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.796859] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.803855] device bridge_slave_1 entered promiscuous mode [ 73.820266] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 73.838688] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 73.883424] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 73.903345] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 73.974415] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 73.982171] team0: Port device team_slave_0 added [ 73.998994] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 74.006029] team0: Port device team_slave_1 added [ 74.021928] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.039832] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.058817] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.078427] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.214700] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.221227] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.228099] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.234424] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.748124] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.802152] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 74.857533] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 74.863734] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.871321] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.916963] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.321154] ================================================================== [ 75.328723] BUG: KASAN: user-memory-access in n_tty_set_termios+0x106/0xe80 [ 75.336443] Write of size 512 at addr 0000000000001060 by task syz-executor0/6258 [ 75.344050] [ 75.345791] CPU: 0 PID: 6258 Comm: syz-executor0 Not tainted 4.20.0-rc1-next-20181109+ #110 [ 75.354317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.363667] Call Trace: [ 75.366281] dump_stack+0x244/0x39d [ 75.369912] ? dump_stack_print_info.cold.1+0x20/0x20 [ 75.375118] ? vprintk_func+0x85/0x181 [ 75.379010] kasan_report.cold.8+0x6d/0x309 [ 75.383330] ? n_tty_set_termios+0x106/0xe80 [ 75.387742] check_memory_region+0x13e/0x1b0 [ 75.392149] memset+0x23/0x40 [ 75.395276] n_tty_set_termios+0x106/0xe80 [ 75.399518] ? n_tty_receive_signal_char+0x120/0x120 [ 75.404621] tty_set_termios+0x7a0/0xac0 [ 75.408686] ? tty_wait_until_sent+0x5d0/0x5d0 [ 75.413281] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.418832] set_termios+0x41e/0x7d0 [ 75.422566] ? tty_perform_flush+0x80/0x80 [ 75.426806] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 75.431908] tty_mode_ioctl+0x857/0xb40 [ 75.435886] ? set_termios+0x7d0/0x7d0 [ 75.440258] ? perf_trace_sched_process_exec+0x860/0x860 [ 75.445745] n_tty_ioctl_helper+0x54/0x3b0 [ 75.449981] n_tty_ioctl+0x54/0x360 [ 75.453610] ? ldsem_down_read+0x32/0x40 [ 75.457671] ? ldsem_down_read+0x32/0x40 [ 75.461736] tty_ioctl+0x5c6/0x17d0 [ 75.465358] ? commit_echoes+0x1c0/0x1c0 [ 75.469451] ? tty_vhangup+0x30/0x30 [ 75.473160] ? find_held_lock+0x36/0x1c0 [ 75.477915] ? __fget+0x4aa/0x740 [ 75.481387] ? lock_downgrade+0x900/0x900 [ 75.485551] ? check_preemption_disabled+0x48/0x280 [ 75.490568] ? kasan_check_read+0x11/0x20 [ 75.494726] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 75.500003] ? rcu_read_unlock_special+0x370/0x370 [ 75.504958] ? __fget+0x4d1/0x740 [ 75.508433] ? ksys_dup3+0x680/0x680 [ 75.512149] ? __might_fault+0x12b/0x1e0 [ 75.516207] ? lock_downgrade+0x900/0x900 [ 75.520365] ? lock_release+0xa10/0xa10 [ 75.524340] ? perf_trace_sched_process_exec+0x860/0x860 [ 75.529791] ? tty_vhangup+0x30/0x30 [ 75.533504] do_vfs_ioctl+0x1de/0x1790 [ 75.537405] ? ioctl_preallocate+0x300/0x300 [ 75.541810] ? __fget_light+0x2e9/0x430 [ 75.545794] ? fget_raw+0x20/0x20 [ 75.549247] ? _copy_to_user+0xc8/0x110 [ 75.553225] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.558766] ? put_timespec64+0x10f/0x1b0 [ 75.562914] ? nsecs_to_jiffies+0x30/0x30 [ 75.567063] ? do_syscall_64+0x9a/0x820 [ 75.571047] ? do_syscall_64+0x9a/0x820 [ 75.575021] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 75.579607] ? security_file_ioctl+0x94/0xc0 [ 75.584017] ksys_ioctl+0xa9/0xd0 [ 75.587521] __x64_sys_ioctl+0x73/0xb0 [ 75.591411] do_syscall_64+0x1b9/0x820 [ 75.595303] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 75.600713] ? syscall_return_slowpath+0x5e0/0x5e0 [ 75.605661] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 75.610505] ? trace_hardirqs_on_caller+0x310/0x310 [ 75.615531] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 75.620565] ? prepare_exit_to_usermode+0x291/0x3b0 [ 75.625587] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 75.630438] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.635624] RIP: 0033:0x457569 [ 75.638817] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 75.657722] RSP: 002b:00007f9aea323c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.665439] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 75.672714] RDX: 0000000020000080 RSI: 0000000000005402 RDI: 0000000000000005 [ 75.679981] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 75.687265] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9aea3246d4 [ 75.694536] R13: 00000000004c10be R14: 00000000004d2410 R15: 00000000ffffffff [ 75.701818] ================================================================== [ 75.709172] Disabling lock debugging due to kernel taint [ 75.717957] Kernel panic - not syncing: panic_on_warn set ... [ 75.723867] CPU: 0 PID: 6258 Comm: syz-executor0 Tainted: G B 4.20.0-rc1-next-20181109+ #110 [ 75.733727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.743068] Call Trace: [ 75.745640] dump_stack+0x244/0x39d [ 75.749255] ? dump_stack_print_info.cold.1+0x20/0x20 [ 75.754431] panic+0x2ad/0x55c [ 75.757607] ? add_taint.cold.5+0x16/0x16 [ 75.761738] ? preempt_schedule+0x4d/0x60 [ 75.765874] ? ___preempt_schedule+0x16/0x18 [ 75.770268] ? trace_hardirqs_on+0xb4/0x310 [ 75.774610] kasan_end_report+0x47/0x4f [ 75.778595] kasan_report.cold.8+0x76/0x309 [ 75.782905] ? n_tty_set_termios+0x106/0xe80 [ 75.787317] check_memory_region+0x13e/0x1b0 [ 75.791707] memset+0x23/0x40 [ 75.794795] n_tty_set_termios+0x106/0xe80 [ 75.799013] ? n_tty_receive_signal_char+0x120/0x120 [ 75.804093] tty_set_termios+0x7a0/0xac0 [ 75.808151] ? tty_wait_until_sent+0x5d0/0x5d0 [ 75.812715] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.818230] set_termios+0x41e/0x7d0 [ 75.821936] ? tty_perform_flush+0x80/0x80 [ 75.826154] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 75.831234] tty_mode_ioctl+0x857/0xb40 [ 75.835194] ? set_termios+0x7d0/0x7d0 [ 75.839067] ? perf_trace_sched_process_exec+0x860/0x860 [ 75.844498] n_tty_ioctl_helper+0x54/0x3b0 [ 75.848715] n_tty_ioctl+0x54/0x360 [ 75.852324] ? ldsem_down_read+0x32/0x40 [ 75.856367] ? ldsem_down_read+0x32/0x40 [ 75.860413] tty_ioctl+0x5c6/0x17d0 [ 75.864018] ? commit_echoes+0x1c0/0x1c0 [ 75.868063] ? tty_vhangup+0x30/0x30 [ 75.871755] ? find_held_lock+0x36/0x1c0 [ 75.875798] ? __fget+0x4aa/0x740 [ 75.879230] ? lock_downgrade+0x900/0x900 [ 75.883366] ? check_preemption_disabled+0x48/0x280 [ 75.888364] ? kasan_check_read+0x11/0x20 [ 75.892492] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 75.897751] ? rcu_read_unlock_special+0x370/0x370 [ 75.902661] ? __fget+0x4d1/0x740 [ 75.906097] ? ksys_dup3+0x680/0x680 [ 75.909797] ? __might_fault+0x12b/0x1e0 [ 75.913839] ? lock_downgrade+0x900/0x900 [ 75.917966] ? lock_release+0xa10/0xa10 [ 75.921933] ? perf_trace_sched_process_exec+0x860/0x860 [ 75.927390] ? tty_vhangup+0x30/0x30 [ 75.931091] do_vfs_ioctl+0x1de/0x1790 [ 75.934961] ? ioctl_preallocate+0x300/0x300 [ 75.939351] ? __fget_light+0x2e9/0x430 [ 75.943302] ? fget_raw+0x20/0x20 [ 75.946734] ? _copy_to_user+0xc8/0x110 [ 75.950689] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.956204] ? put_timespec64+0x10f/0x1b0 [ 75.960333] ? nsecs_to_jiffies+0x30/0x30 [ 75.964460] ? do_syscall_64+0x9a/0x820 [ 75.968416] ? do_syscall_64+0x9a/0x820 [ 75.972372] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 75.976938] ? security_file_ioctl+0x94/0xc0 [ 75.981328] ksys_ioctl+0xa9/0xd0 [ 75.984761] __x64_sys_ioctl+0x73/0xb0 [ 75.988631] do_syscall_64+0x1b9/0x820 [ 75.992503] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 75.997853] ? syscall_return_slowpath+0x5e0/0x5e0 [ 76.002768] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 76.007591] ? trace_hardirqs_on_caller+0x310/0x310 [ 76.012589] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 76.017584] ? prepare_exit_to_usermode+0x291/0x3b0 [ 76.022580] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 76.027409] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.032578] RIP: 0033:0x457569 [ 76.035751] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 76.054631] RSP: 002b:00007f9aea323c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 76.062318] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 76.069570] RDX: 0000000020000080 RSI: 0000000000005402 RDI: 0000000000000005 [ 76.076817] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 76.084064] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9aea3246d4 [ 76.091315] R13: 00000000004c10be R14: 00000000004d2410 R15: 00000000ffffffff [ 76.099469] Kernel Offset: disabled [ 76.103091] Rebooting in 86400 seconds..