Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.990234] audit: type=1800 audit(1545893841.917:33): pid=7507 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 37.012596] audit: type=1800 audit(1545893841.917:34): pid=7507 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 39.778373] audit: type=1400 audit(1545893844.697:35): avc: denied { map } for pid=7682 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.65' (ECDSA) to the list of known hosts. [ 789.648108] audit: type=1400 audit(1545894594.567:36): avc: denied { map } for pid=7695 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/12/27 07:09:55 parsed 1 programs [ 790.207398] audit: type=1400 audit(1545894595.127:37): avc: denied { map } for pid=7695 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=14823 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 791.418422] ld (7705) used greatest stack depth: 15288 bytes left 2018/12/27 07:09:56 executed programs: 0 [ 791.631254] IPVS: ftp: loaded support on port[0] = 21 [ 791.834704] chnl_net:caif_netlink_parms(): no params data found [ 791.930899] bridge0: port 1(bridge_slave_0) entered blocking state [ 791.937688] bridge0: port 1(bridge_slave_0) entered disabled state [ 791.944852] device bridge_slave_0 entered promiscuous mode [ 791.961574] bridge0: port 2(bridge_slave_1) entered blocking state [ 791.968166] bridge0: port 2(bridge_slave_1) entered disabled state [ 791.975278] device bridge_slave_1 entered promiscuous mode [ 792.018212] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 792.037698] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 792.081689] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 792.089293] team0: Port device team_slave_0 added [ 792.105078] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 792.112249] team0: Port device team_slave_1 added [ 792.126674] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 792.144146] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 792.195842] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 792.213323] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 792.340318] bridge0: port 2(bridge_slave_1) entered blocking state [ 792.346800] bridge0: port 2(bridge_slave_1) entered forwarding state [ 792.353860] bridge0: port 1(bridge_slave_0) entered blocking state [ 792.360454] bridge0: port 1(bridge_slave_0) entered forwarding state [ 792.799927] bridge0: port 1(bridge_slave_0) entered disabled state [ 792.807358] bridge0: port 2(bridge_slave_1) entered disabled state [ 792.840832] 8021q: adding VLAN 0 to HW filter on device bond0 [ 792.891317] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 792.940424] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 792.946584] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 792.954368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 792.994682] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 793.000784] 8021q: adding VLAN 0 to HW filter on device team0 [ 793.046794] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 793.053870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 793.061539] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 793.069053] bridge0: port 1(bridge_slave_0) entered blocking state [ 793.075360] bridge0: port 1(bridge_slave_0) entered forwarding state [ 793.113972] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 793.121486] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 793.130499] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 793.138100] bridge0: port 2(bridge_slave_1) entered blocking state [ 793.144458] bridge0: port 2(bridge_slave_1) entered forwarding state [ 793.183745] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 793.190779] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 793.241158] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 793.248015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 793.299943] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 793.306736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 793.314756] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 793.322337] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 793.363633] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 793.370598] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 793.378128] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 793.426201] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 793.433622] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 793.441324] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 793.481825] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 793.488519] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 793.496554] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 793.781632] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 793.923826] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 793.973489] audit: type=1400 audit(1545894598.897:38): avc: denied { associate } for pid=7708 comm="syz-executor0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 794.023633] audit: type=1400 audit(1545894598.947:39): avc: denied { create } for pid=8089 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 794.060613] audit: type=1400 audit(1545894598.947:40): avc: denied { write } for pid=8089 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 794.105290] audit: type=1400 audit(1545894598.957:41): avc: denied { read } for pid=8089 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 2018/12/27 07:10:01 executed programs: 9 2018/12/27 07:10:06 executed programs: 25 2018/12/27 07:10:11 executed programs: 41 2018/12/27 07:10:17 executed programs: 57 2018/12/27 07:10:22 executed programs: 72 2018/12/27 07:10:27 executed programs: 87 2018/12/27 07:10:32 executed programs: 103 2018/12/27 07:10:37 executed programs: 118 2018/12/27 07:10:42 executed programs: 134 2018/12/27 07:10:47 executed programs: 149 2018/12/27 07:10:53 executed programs: 166 2018/12/27 07:10:58 executed programs: 182 2018/12/27 07:11:03 executed programs: 199 2018/12/27 07:11:08 executed programs: 214 2018/12/27 07:11:13 executed programs: 232 2018/12/27 07:11:19 executed programs: 248 2018/12/27 07:11:24 executed programs: 263 2018/12/27 07:11:29 executed programs: 279 2018/12/27 07:11:34 executed programs: 297 2018/12/27 07:11:39 executed programs: 313 2018/12/27 07:11:44 executed programs: 329 2018/12/27 07:11:49 executed programs: 345 2018/12/27 07:11:54 executed programs: 360 2018/12/27 07:11:59 executed programs: 375 2018/12/27 07:12:04 executed programs: 391 2018/12/27 07:12:09 executed programs: 408 2018/12/27 07:12:15 executed programs: 426 2018/12/27 07:12:20 executed programs: 443 2018/12/27 07:12:25 executed programs: 458 [ 941.152024] ================================================================== [ 941.159614] BUG: KASAN: user-memory-access in n_tty_set_termios+0x106/0xe80 [ 941.166708] Write of size 512 at addr 0000000000001060 by task syz-executor0/20298 [ 941.174402] [ 941.176029] CPU: 1 PID: 20298 Comm: syz-executor0 Not tainted 4.20.0+ #170 [ 941.183028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 941.192396] Call Trace: [ 941.195006] dump_stack+0x1d3/0x2c6 [ 941.198643] ? dump_stack_print_info.cold.1+0x20/0x20 [ 941.203865] ? vprintk_func+0x85/0x181 [ 941.207782] kasan_report.cold.9+0x6d/0x309 [ 941.212203] ? n_tty_set_termios+0x106/0xe80 [ 941.216615] check_memory_region+0x13e/0x1b0 [ 941.221021] memset+0x23/0x40 [ 941.224128] n_tty_set_termios+0x106/0xe80 [ 941.228362] ? n_tty_receive_signal_char+0x120/0x120 [ 941.233458] tty_set_termios+0x7a0/0xac0 [ 941.237517] ? tty_wait_until_sent+0x5d0/0x5d0 [ 941.242136] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 941.247673] set_termios+0x41e/0x7d0 [ 941.251387] ? tty_perform_flush+0x80/0x80 [ 941.255683] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 941.260786] tty_mode_ioctl+0x857/0xb40 [ 941.264755] ? set_termios+0x7d0/0x7d0 [ 941.268668] ? ___might_sleep+0x1ed/0x300 [ 941.272812] ? arch_local_save_flags+0x40/0x40 [ 941.277437] ? avc_has_extended_perms+0x8cb/0x15a0 [ 941.282372] n_tty_ioctl_helper+0x54/0x3b0 [ 941.286610] n_tty_ioctl+0x54/0x360 [ 941.290262] ? ldsem_down_read+0x32/0x40 [ 941.294320] ? ldsem_down_read+0x32/0x40 [ 941.298379] tty_ioctl+0x5c6/0x17d0 [ 941.301998] ? commit_echoes+0x1c0/0x1c0 [ 941.306053] ? tty_vhangup+0x30/0x30 [ 941.309764] ? avc_has_extended_perms+0xab2/0x15a0 [ 941.314703] ? avc_ss_reset+0x190/0x190 [ 941.318726] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 941.323650] ? kasan_check_read+0x11/0x20 [ 941.327795] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 941.333065] ? rcu_softirq_qs+0x20/0x20 [ 941.337057] ? ___might_sleep+0x1ed/0x300 [ 941.341204] ? arch_local_save_flags+0x40/0x40 [ 941.345809] ? __might_fault+0x12b/0x1e0 [ 941.349891] ? lock_downgrade+0x900/0x900 [ 941.354041] ? tty_vhangup+0x30/0x30 [ 941.357794] do_vfs_ioctl+0x1de/0x1790 [ 941.361687] ? ioctl_preallocate+0x300/0x300 [ 941.366118] ? selinux_file_mprotect+0x620/0x620 [ 941.370912] ? __do_once_done+0x1c2/0x310 [ 941.375064] ? __sanitizer_cov_trace_cmp1+0xb/0x20 [ 941.379989] ? put_timespec64+0x10f/0x1b0 [ 941.384134] ? nsecs_to_jiffies+0x30/0x30 [ 941.388306] ? do_syscall_64+0x9a/0x820 [ 941.392280] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 941.397810] ? security_file_ioctl+0x94/0xc0 [ 941.402221] ksys_ioctl+0xa9/0xd0 [ 941.405678] __x64_sys_ioctl+0x73/0xb0 [ 941.409567] do_syscall_64+0x1b9/0x820 [ 941.413454] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 941.418827] ? syscall_return_slowpath+0x5e0/0x5e0 [ 941.423750] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 941.428604] ? trace_hardirqs_on_caller+0x310/0x310 [ 941.433622] ? prepare_exit_to_usermode+0x291/0x3b0 [ 941.438642] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 941.443493] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 941.448672] RIP: 0033:0x4579b9 [ 941.451860] 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 [ 941.470752] RSP: 002b:00007fba847dfc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 941.478450] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004579b9 [ 941.485714] RDX: 0000000020000000 RSI: 0000000000005402 RDI: 0000000000000007 [ 941.492973] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 941.500235] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fba847e06d4 [ 941.507507] R13: 00000000004c1acd R14: 00000000004d3c78 R15: 00000000ffffffff [ 941.514783] ================================================================== [ 941.522126] Disabling lock debugging due to kernel taint [ 941.538830] Kernel panic - not syncing: panic_on_warn set ... [ 941.544727] CPU: 1 PID: 20298 Comm: syz-executor0 Tainted: G B 4.20.0+ #170 [ 941.553115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 941.562458] Call Trace: [ 941.565034] dump_stack+0x1d3/0x2c6 [ 941.568654] ? dump_stack_print_info.cold.1+0x20/0x20 [ 941.573890] panic+0x2ad/0x55c [ 941.577076] ? add_taint.cold.5+0x16/0x16 [ 941.581222] ? preempt_schedule+0x4d/0x60 [ 941.585363] ? ___preempt_schedule+0x16/0x18 [ 941.589767] ? trace_hardirqs_on+0xb4/0x310 [ 941.594171] kasan_end_report+0x47/0x4f [ 941.598137] kasan_report.cold.9+0x76/0x309 [ 941.602449] ? n_tty_set_termios+0x106/0xe80 [ 941.606848] check_memory_region+0x13e/0x1b0 [ 941.611251] memset+0x23/0x40 [ 941.614351] n_tty_set_termios+0x106/0xe80 [ 941.618585] ? n_tty_receive_signal_char+0x120/0x120 [ 941.623683] tty_set_termios+0x7a0/0xac0 [ 941.627736] ? tty_wait_until_sent+0x5d0/0x5d0 [ 941.632318] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 941.637847] set_termios+0x41e/0x7d0 [ 941.641555] ? tty_perform_flush+0x80/0x80 [ 941.645793] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 941.650889] tty_mode_ioctl+0x857/0xb40 [ 941.654857] ? set_termios+0x7d0/0x7d0 [ 941.658739] ? ___might_sleep+0x1ed/0x300 [ 941.662877] ? arch_local_save_flags+0x40/0x40 [ 941.667451] ? avc_has_extended_perms+0x8cb/0x15a0 [ 941.672378] n_tty_ioctl_helper+0x54/0x3b0 [ 941.676605] n_tty_ioctl+0x54/0x360 [ 941.680226] ? ldsem_down_read+0x32/0x40 [ 941.684276] ? ldsem_down_read+0x32/0x40 [ 941.688328] tty_ioctl+0x5c6/0x17d0 [ 941.691946] ? commit_echoes+0x1c0/0x1c0 [ 941.696001] ? tty_vhangup+0x30/0x30 [ 941.699704] ? avc_has_extended_perms+0xab2/0x15a0 [ 941.704635] ? avc_ss_reset+0x190/0x190 [ 941.708612] ? rcu_read_unlock_special+0x1d0/0x1d0 [ 941.713530] ? kasan_check_read+0x11/0x20 [ 941.717670] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 941.722935] ? rcu_softirq_qs+0x20/0x20 [ 941.726913] ? ___might_sleep+0x1ed/0x300 [ 941.731053] ? arch_local_save_flags+0x40/0x40 [ 941.735635] ? __might_fault+0x12b/0x1e0 [ 941.739687] ? lock_downgrade+0x900/0x900 [ 941.743827] ? tty_vhangup+0x30/0x30 [ 941.747535] do_vfs_ioctl+0x1de/0x1790 [ 941.751426] ? ioctl_preallocate+0x300/0x300 [ 941.755830] ? selinux_file_mprotect+0x620/0x620 [ 941.760585] ? __do_once_done+0x1c2/0x310 [ 941.764720] ? __sanitizer_cov_trace_cmp1+0xb/0x20 [ 941.769626] ? put_timespec64+0x10f/0x1b0 [ 941.773753] ? nsecs_to_jiffies+0x30/0x30 [ 941.777872] ? do_syscall_64+0x9a/0x820 [ 941.781820] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 941.787327] ? security_file_ioctl+0x94/0xc0 [ 941.791710] ksys_ioctl+0xa9/0xd0 [ 941.795137] __x64_sys_ioctl+0x73/0xb0 [ 941.798997] do_syscall_64+0x1b9/0x820 [ 941.802856] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 941.808192] ? syscall_return_slowpath+0x5e0/0x5e0 [ 941.813096] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 941.817911] ? trace_hardirqs_on_caller+0x310/0x310 [ 941.822902] ? prepare_exit_to_usermode+0x291/0x3b0 [ 941.827891] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 941.832707] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 941.837869] RIP: 0033:0x4579b9 [ 941.841033] 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 [ 941.860075] RSP: 002b:00007fba847dfc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 941.867756] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004579b9 [ 941.874999] RDX: 0000000020000000 RSI: 0000000000005402 RDI: 0000000000000007 [ 941.882244] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 941.889488] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fba847e06d4 [ 941.896730] R13: 00000000004c1acd R14: 00000000004d3c78 R15: 00000000ffffffff [ 941.905094] Kernel Offset: disabled [ 941.908708] Rebooting in 86400 seconds..