[info] Using makefile-style concurrent boot in runlevel 2. [ 27.080717] audit: type=1800 audit(1542513083.744:21): pid=5852 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 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 syzkaller login: [ 32.197010] sshd (5991) used greatest stack depth: 15744 bytes left Warning: Permanently added '10.128.0.83' (ECDSA) to the list of known hosts. 2018/11/18 03:51:36 parsed 1 programs 2018/11/18 03:51:38 executed programs: 0 [ 41.582652] IPVS: ftp: loaded support on port[0] = 21 [ 41.582824] IPVS: ftp: loaded support on port[0] = 21 [ 41.591461] IPVS: ftp: loaded support on port[0] = 21 [ 41.597187] IPVS: ftp: loaded support on port[0] = 21 [ 41.600238] IPVS: ftp: loaded support on port[0] = 21 [ 41.613528] IPVS: ftp: loaded support on port[0] = 21 [ 42.980220] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.987777] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.996382] device bridge_slave_0 entered promiscuous mode [ 43.024102] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.030939] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.047255] device bridge_slave_1 entered promiscuous mode [ 43.057163] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.063645] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.077312] device bridge_slave_0 entered promiscuous mode [ 43.086429] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.092795] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.102062] device bridge_slave_0 entered promiscuous mode [ 43.111063] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.123951] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.131495] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.139606] device bridge_slave_0 entered promiscuous mode [ 43.150699] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.159457] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.167409] device bridge_slave_1 entered promiscuous mode [ 43.174959] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.181313] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.198570] device bridge_slave_0 entered promiscuous mode [ 43.208129] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.214800] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.222410] device bridge_slave_1 entered promiscuous mode [ 43.231914] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.241135] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.248429] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.256877] device bridge_slave_0 entered promiscuous mode [ 43.267479] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.280956] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.289296] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.297347] device bridge_slave_1 entered promiscuous mode [ 43.305038] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.311425] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.327171] device bridge_slave_1 entered promiscuous mode [ 43.335246] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.361415] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.371532] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.383440] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.391089] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.401262] device bridge_slave_1 entered promiscuous mode [ 43.411382] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.450303] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.470564] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.486874] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.497993] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.521015] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.550706] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.583937] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.640526] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 43.662085] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.676381] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 43.714462] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 43.721459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 43.739003] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.752189] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.775479] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.819235] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.833940] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 43.849937] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.859284] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 43.878832] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.903051] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 43.924336] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 43.934888] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 43.942953] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.973286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 44.017229] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.033808] team0: Port device team_slave_0 added [ 44.045576] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 44.059826] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.091212] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 44.126026] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.135758] team0: Port device team_slave_1 added [ 44.145682] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.161624] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.171273] team0: Port device team_slave_0 added [ 44.218980] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.253733] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.267002] team0: Port device team_slave_1 added [ 44.277023] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.290368] team0: Port device team_slave_0 added [ 44.304931] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.336610] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.344028] team0: Port device team_slave_0 added [ 44.352941] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.363007] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.372495] team0: Port device team_slave_1 added [ 44.392715] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.405146] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.419956] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.433549] team0: Port device team_slave_0 added [ 44.451208] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.459300] team0: Port device team_slave_1 added [ 44.465500] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.479339] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.493750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.504463] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.512456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.529894] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.556443] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.567808] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.583296] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.594617] team0: Port device team_slave_1 added [ 44.605617] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.615405] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.623299] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.637441] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 44.649035] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.658293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 44.666811] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.675967] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.683952] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.694047] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.701820] team0: Port device team_slave_0 added [ 44.713481] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.727690] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 44.734873] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.745145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.762071] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 44.774903] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.784949] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.792951] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.808477] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.822221] team0: Port device team_slave_1 added [ 44.831537] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.844846] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.860754] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.869652] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.878712] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 44.888646] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.906982] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 44.917938] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.933789] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.942987] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.951978] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 44.962349] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.975058] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 44.982975] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.012369] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.020388] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.045988] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 45.054790] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.063149] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.082863] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.104706] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.113875] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.175223] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 45.184004] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.212485] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.257241] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.271588] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.282633] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.482580] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.489168] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.496242] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.502624] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.518312] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.631486] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.686898] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.693298] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.700034] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.706437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.715164] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.809607] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.816060] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.822742] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.829176] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.850881] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.926125] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.932530] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.939261] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.945674] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.955103] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.989414] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.995830] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.002485] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.008903] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.017021] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.150394] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.156837] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.163493] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.169917] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.177963] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.704822] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.712843] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.730345] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.739824] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.747850] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 48.286006] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.575859] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.654613] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.759950] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.781048] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.847523] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 48.861070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 48.871134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.910627] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.945184] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.969310] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.084958] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.105800] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.120312] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.134903] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.188106] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.277850] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.284084] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.293277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.395889] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.402086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.412225] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.429872] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.442474] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.453879] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.466978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.474055] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.487425] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.539113] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.556816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.563927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.637579] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.667876] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.707137] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.718739] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.834936] 8021q: adding VLAN 0 to HW filter on device team0 2018/11/18 03:51:47 executed programs: 6 2018/11/18 03:51:52 executed programs: 140 2018/11/18 03:51:57 executed programs: 293 2018/11/18 03:52:02 executed programs: 444 [ 68.704119] ================================================================== [ 68.711664] BUG: KASAN: user-memory-access in n_tty_set_termios+0x106/0xe80 [ 68.718776] Write of size 512 at addr 0000000000001060 by task syz-executor1/10776 [ 68.726479] [ 68.728122] CPU: 1 PID: 10776 Comm: syz-executor1 Not tainted 4.20.0-rc2+ #338 [ 68.735485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.744844] Call Trace: [ 68.747443] dump_stack+0x244/0x39d [ 68.751087] ? dump_stack_print_info.cold.1+0x20/0x20 [ 68.756294] ? vprintk_func+0x85/0x181 [ 68.760216] kasan_report.cold.8+0x6d/0x309 [ 68.764552] ? n_tty_set_termios+0x106/0xe80 [ 68.769005] check_memory_region+0x13e/0x1b0 [ 68.773426] memset+0x23/0x40 [ 68.776547] n_tty_set_termios+0x106/0xe80 [ 68.780806] ? n_tty_receive_signal_char+0x120/0x120 [ 68.785920] tty_set_termios+0x7a0/0xac0 [ 68.790001] ? tty_wait_until_sent+0x5d0/0x5d0 [ 68.794608] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 68.800184] set_termios+0x41e/0x7d0 [ 68.803912] ? tty_perform_flush+0x80/0x80 [ 68.808177] tty_mode_ioctl+0x857/0xb40 [ 68.812162] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.816942] ? set_termios+0x7d0/0x7d0 [ 68.820854] ? perf_trace_sched_process_exec+0x860/0x860 [ 68.826325] n_tty_ioctl_helper+0x54/0x3b0 [ 68.830597] n_tty_ioctl+0x54/0x360 [ 68.834239] ? ldsem_down_read+0x32/0x40 [ 68.838310] ? ldsem_down_read+0x32/0x40 [ 68.842383] tty_ioctl+0x5c6/0x17d0 [ 68.846023] ? commit_echoes+0x1c0/0x1c0 [ 68.850094] ? tty_vhangup+0x30/0x30 [ 68.853821] ? find_held_lock+0x36/0x1c0 [ 68.857901] ? __fget+0x4aa/0x740 [ 68.861367] ? lock_downgrade+0x900/0x900 [ 68.865528] ? check_preemption_disabled+0x48/0x280 [ 68.870574] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 68.875518] ? kasan_check_read+0x11/0x20 [ 68.879678] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 68.884968] ? rcu_softirq_qs+0x20/0x20 [ 68.888962] ? __fget+0x4d1/0x740 [ 68.892434] ? ksys_dup3+0x680/0x680 [ 68.896175] ? __might_fault+0x12b/0x1e0 [ 68.900252] ? lock_downgrade+0x900/0x900 [ 68.904417] ? lock_release+0xa00/0xa00 [ 68.908413] ? perf_trace_sched_process_exec+0x860/0x860 [ 68.913882] ? tty_vhangup+0x30/0x30 [ 68.917620] do_vfs_ioctl+0x1de/0x1790 [ 68.921520] ? ioctl_preallocate+0x300/0x300 [ 68.925938] ? __fget_light+0x2e9/0x430 [ 68.929924] ? fget_raw+0x20/0x20 [ 68.933389] ? _copy_to_user+0xc8/0x110 [ 68.937383] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 68.942937] ? put_timespec64+0x10f/0x1b0 [ 68.947099] ? nsecs_to_jiffies+0x30/0x30 [ 68.951266] ? do_syscall_64+0x9a/0x820 [ 68.955267] ? do_syscall_64+0x9a/0x820 [ 68.959260] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 68.963854] ? security_file_ioctl+0x94/0xc0 [ 68.968277] ksys_ioctl+0xa9/0xd0 [ 68.971751] __x64_sys_ioctl+0x73/0xb0 [ 68.975665] do_syscall_64+0x1b9/0x820 [ 68.979577] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 68.984958] ? syscall_return_slowpath+0x5e0/0x5e0 [ 68.989897] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 68.994752] ? trace_hardirqs_on_caller+0x310/0x310 [ 68.994782] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 68.994799] ? prepare_exit_to_usermode+0x291/0x3b0 [ 68.994820] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 68.994843] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.994855] RIP: 0033:0x457569 [ 69.014830] 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 [ 69.014840] RSP: 002b:00007f400df1fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 69.014855] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 69.014864] RDX: 0000000020000100 RSI: 0000000000005402 RDI: 0000000000000005 [ 69.014878] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 69.032123] kobject: 'loop0' (00000000ef9cc452): kobject_uevent_env [ 69.042155] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f400df206d4 [ 69.042171] R13: 00000000004c0ffe R14: 00000000004d1d88 R15: 00000000ffffffff [ 69.042198] ================================================================== [ 69.042203] Disabling lock debugging due to kernel taint [ 69.051412] Kernel panic - not syncing: panic_on_warn set ... [ 69.068702] kobject: 'loop0' (00000000ef9cc452): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 69.071847] CPU: 1 PID: 10776 Comm: syz-executor1 Tainted: G B 4.20.0-rc2+ #338 [ 69.071856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.071861] Call Trace: [ 69.071882] dump_stack+0x244/0x39d [ 69.071901] ? dump_stack_print_info.cold.1+0x20/0x20 [ 69.079287] kobject: 'loop2' (00000000c1f24361): kobject_uevent_env [ 69.085592] panic+0x2ad/0x55c [ 69.085608] ? add_taint.cold.5+0x16/0x16 [ 69.085625] ? preempt_schedule+0x4d/0x60 [ 69.085640] ? ___preempt_schedule+0x16/0x18 [ 69.085659] ? trace_hardirqs_on+0xb4/0x310 [ 69.093312] kobject: 'loop2' (00000000c1f24361): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 69.100280] kasan_end_report+0x47/0x4f [ 69.100294] kasan_report.cold.8+0x76/0x309 [ 69.100307] ? n_tty_set_termios+0x106/0xe80 [ 69.100324] check_memory_region+0x13e/0x1b0 [ 69.100338] memset+0x23/0x40 [ 69.100356] n_tty_set_termios+0x106/0xe80 [ 69.114054] kobject: 'loop0' (00000000ef9cc452): kobject_uevent_env [ 69.121113] ? n_tty_receive_signal_char+0x120/0x120 [ 69.121128] tty_set_termios+0x7a0/0xac0 [ 69.121145] ? tty_wait_until_sent+0x5d0/0x5d0 [ 69.121172] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 69.121189] set_termios+0x41e/0x7d0 [ 69.142013] kobject: 'loop0' (00000000ef9cc452): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 69.145487] ? tty_perform_flush+0x80/0x80 [ 69.145509] tty_mode_ioctl+0x857/0xb40 [ 69.145525] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 69.145540] ? set_termios+0x7d0/0x7d0 [ 69.145559] ? perf_trace_sched_process_exec+0x860/0x860 [ 69.151693] kobject: 'loop5' (00000000714c1606): kobject_uevent_env [ 69.157171] n_tty_ioctl_helper+0x54/0x3b0 [ 69.157187] n_tty_ioctl+0x54/0x360 [ 69.157202] ? ldsem_down_read+0x32/0x40 [ 69.157216] ? ldsem_down_read+0x32/0x40 [ 69.157231] tty_ioctl+0x5c6/0x17d0 [ 69.160817] kobject: 'loop5' (00000000714c1606): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 69.164551] ? commit_echoes+0x1c0/0x1c0 [ 69.164575] ? tty_vhangup+0x30/0x30 [ 69.164593] ? find_held_lock+0x36/0x1c0 [ 69.164611] ? __fget+0x4aa/0x740 [ 69.164625] ? lock_downgrade+0x900/0x900 [ 69.164642] ? check_preemption_disabled+0x48/0x280 [ 69.164659] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 69.207975] kobject: 'loop4' (00000000c074a778): kobject_uevent_env [ 69.211340] ? kasan_check_read+0x11/0x20 [ 69.229624] kobject: 'loop4' (00000000c074a778): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 69.231450] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 69.231463] ? rcu_softirq_qs+0x20/0x20 [ 69.231483] ? __fget+0x4d1/0x740 [ 69.241671] kobject: 'loop3' (000000005fa34e2e): kobject_uevent_env [ 69.250155] ? ksys_dup3+0x680/0x680 [ 69.250178] ? __might_fault+0x12b/0x1e0 [ 69.250194] ? lock_downgrade+0x900/0x900 [ 69.250210] ? lock_release+0xa00/0xa00 [ 69.250229] ? perf_trace_sched_process_exec+0x860/0x860 [ 69.266005] kobject: 'loop3' (000000005fa34e2e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 69.267047] ? tty_vhangup+0x30/0x30 [ 69.267063] do_vfs_ioctl+0x1de/0x1790 [ 69.267081] ? ioctl_preallocate+0x300/0x300 [ 69.420763] ? __fget_light+0x2e9/0x430 [ 69.424781] ? fget_raw+0x20/0x20 [ 69.428506] ? _copy_to_user+0xc8/0x110 [ 69.432465] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 69.438005] ? put_timespec64+0x10f/0x1b0 [ 69.442135] ? nsecs_to_jiffies+0x30/0x30 [ 69.446267] ? do_syscall_64+0x9a/0x820 [ 69.450220] ? do_syscall_64+0x9a/0x820 [ 69.454179] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 69.458747] ? security_file_ioctl+0x94/0xc0 [ 69.463139] ksys_ioctl+0xa9/0xd0 [ 69.466581] __x64_sys_ioctl+0x73/0xb0 [ 69.470453] do_syscall_64+0x1b9/0x820 [ 69.474328] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 69.479689] ? syscall_return_slowpath+0x5e0/0x5e0 [ 69.484600] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 69.489426] ? trace_hardirqs_on_caller+0x310/0x310 [ 69.494550] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 69.499581] ? prepare_exit_to_usermode+0x291/0x3b0 [ 69.504888] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 69.510082] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.515255] RIP: 0033:0x457569 [ 69.518431] 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 [ 69.537336] RSP: 002b:00007f400df1fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 69.545044] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 69.552725] RDX: 0000000020000100 RSI: 0000000000005402 RDI: 0000000000000005 [ 69.559976] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 69.567705] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f400df206d4 [ 69.574964] R13: 00000000004c0ffe R14: 00000000004d1d88 R15: 00000000ffffffff [ 69.583280] Kernel Offset: disabled [ 69.586908] Rebooting in 86400 seconds..