Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. syzkaller login: [ 38.633697] IPVS: ftp: loaded support on port[0] = 21 [ 38.703135] chnl_net:caif_netlink_parms(): no params data found [ 38.795740] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.802334] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.810747] device bridge_slave_0 entered promiscuous mode [ 38.818299] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.825148] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.832064] device bridge_slave_1 entered promiscuous mode [ 38.850626] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 38.859404] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 38.877106] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 38.884606] team0: Port device team_slave_0 added [ 38.889993] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 38.897939] team0: Port device team_slave_1 added [ 38.913119] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.919426] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 38.944753] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.956088] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.962312] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 38.987566] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.998190] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 39.005774] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.024500] device hsr_slave_0 entered promiscuous mode [ 39.030182] device hsr_slave_1 entered promiscuous mode [ 39.037165] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.044326] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 39.107223] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.113675] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.120383] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.126777] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.156781] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 39.162842] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.171301] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 39.180122] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.189146] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.196331] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.204105] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 39.214329] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 39.220492] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.229540] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.238054] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.244410] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.254564] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.262126] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.268509] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.282376] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.290569] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.305149] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.312743] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.320697] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.330498] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 39.336615] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.349220] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 39.356744] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.364312] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.374127] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.387047] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 39.396265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.429340] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 39.436300] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 39.442778] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 39.451907] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.460239] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.467232] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.475954] device veth0_vlan entered promiscuous mode [ 39.484532] device veth1_vlan entered promiscuous mode [ 39.490329] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 39.499661] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 39.510653] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 39.519871] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.527374] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.535340] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.544638] device veth0_macvtap entered promiscuous mode [ 39.550677] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 39.560086] device veth1_macvtap entered promiscuous mode [ 39.568970] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 39.578387] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 39.588440] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.595645] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.604852] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 39.614871] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.621529] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 39.745984] FAULT_INJECTION: forcing a failure. [ 39.745984] name failslab, interval 1, probability 0, space 0, times 1 [ 39.757982] CPU: 0 PID: 8096 Comm: syz-executor792 Not tainted 4.19.211-syzkaller #0 [ 39.765860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.775187] Call Trace: [ 39.777755] dump_stack+0x1fc/0x2ef [ 39.781364] should_fail.cold+0xa/0xf [ 39.785153] ? setup_fault_attr+0x200/0x200 [ 39.789453] ? lock_acquire+0x170/0x3c0 [ 39.793407] __should_failslab+0x115/0x180 [ 39.797621] should_failslab+0x5/0x10 [ 39.801400] kmem_cache_alloc+0x277/0x370 [ 39.805529] __kernfs_new_node+0xd2/0x680 [ 39.809659] ? kernfs_dop_revalidate+0x3a0/0x3a0 [ 39.814397] ? __mutex_unlock_slowpath+0xea/0x610 [ 39.819220] ? wait_for_completion_io+0x10/0x10 [ 39.823872] ? kernfs_next_descendant_post+0x19c/0x290 [ 39.829129] kernfs_new_node+0x92/0x120 [ 39.833084] __kernfs_create_file+0x51/0x340 [ 39.837472] sysfs_add_file_mode_ns+0x226/0x540 [ 39.842122] sysfs_merge_group+0x198/0x320 [ 39.846337] ? sysfs_update_group+0x30/0x30 [ 39.850638] ? kernfs_create_link+0x1b9/0x230 [ 39.855112] ? kernfs_put+0x31/0x50 [ 39.858722] dpm_sysfs_add+0x154/0x210 [ 39.862592] device_add+0xa43/0x16d0 [ 39.866284] ? device_check_offline+0x280/0x280 [ 39.870934] ? kfree_const+0x51/0x60 [ 39.874627] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 39.879620] ? kfree+0x1e2/0x210 [ 39.882966] device_create_groups_vargs+0x1f4/0x270 [ 39.887962] device_create+0xdf/0x120 [ 39.891742] ? device_create_vargs+0x50/0x50 [ 39.896132] ? pointer+0x850/0x850 [ 39.899659] bdi_register_va.part.0+0x4c/0x750 [ 39.904219] bdi_register+0x12a/0x140 [ 39.907995] ? bdi_register_va+0x80/0x80 [ 39.912036] ? vsnprintf+0x2cc/0x14f0 [ 39.915854] bdi_register_owner+0x59/0x100 [ 39.920068] __device_add_disk+0xd58/0x10c0 [ 39.924367] ? sprintf+0xc0/0x100 [ 39.927798] ? blk_alloc_devt+0x2d0/0x2d0 [ 39.931924] ? __raw_spin_lock_init+0x28/0x100 [ 39.936485] ? __lockdep_init_map+0x100/0x5a0 [ 39.940960] loop_add+0x628/0x8a0 [ 39.944392] loop_control_ioctl+0x16c/0x480 [ 39.948690] ? loop_lookup+0x1d0/0x1d0 [ 39.952571] ? __vfs_write+0xff/0x770 [ 39.956348] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.961253] ? common_file_perm+0x4e5/0x850 [ 39.965551] ? loop_lookup+0x1d0/0x1d0 [ 39.969417] do_vfs_ioctl+0xcdb/0x12e0 [ 39.973280] ? vfs_write+0x3d7/0x540 [ 39.976971] ? ioctl_preallocate+0x200/0x200 [ 39.981357] ? lock_downgrade+0x720/0x720 [ 39.985486] ? check_preemption_disabled+0x41/0x280 [ 39.990492] ? vfs_write+0x393/0x540 [ 39.994186] ? ksys_write+0x1c8/0x2a0 [ 39.997967] ksys_ioctl+0x9b/0xc0 [ 40.001399] __x64_sys_ioctl+0x6f/0xb0 [ 40.005265] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.009826] do_syscall_64+0xf9/0x620 [ 40.013610] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.018776] RIP: 0033:0x7f08c5a09819 [ 40.022465] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 40.041342] RSP: 002b:00007ffe9625d738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.049031] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f08c5a09819 [ 40.056276] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.063520] RBP: 00007ffe9625d740 R08: 0000000000000002 R09: 0000000000003337 [ 40.070765] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 40.078014] R13: 00007ffe9625d7a0 R14: 0000000000000000 R15: 0000000000000000 [ 40.092003] ------------[ cut here ]------------ [ 40.097156] WARNING: CPU: 0 PID: 8096 at block/genhd.c:719 __device_add_disk.cold+0x69/0x188 [ 40.105730] Kernel panic - not syncing: panic_on_warn set ... [ 40.105730] [ 40.113090] CPU: 0 PID: 8096 Comm: syz-executor792 Not tainted 4.19.211-syzkaller #0 [ 40.120961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.130310] Call Trace: [ 40.132898] dump_stack+0x1fc/0x2ef [ 40.136528] panic+0x26a/0x50e [ 40.139723] ? __warn_printk+0xf3/0xf3 [ 40.143604] ? __device_add_disk.cold+0x69/0x188 [ 40.148348] ? __probe_kernel_read+0x130/0x1b0 [ 40.152907] ? __warn.cold+0x5/0x5a [ 40.156510] ? __warn+0xe4/0x200 [ 40.159854] ? __device_add_disk.cold+0x69/0x188 [ 40.164586] __warn.cold+0x20/0x5a [ 40.168102] ? __device_add_disk.cold+0x69/0x188 [ 40.172835] report_bug+0x262/0x2b0 [ 40.176441] do_error_trap+0x1d7/0x310 [ 40.180305] ? math_error+0x310/0x310 [ 40.184084] ? __irq_work_queue_local+0x101/0x160 [ 40.188902] ? irq_work_queue+0x29/0x80 [ 40.192857] ? error_entry+0x72/0xd0 [ 40.196551] ? trace_hardirqs_off_caller+0x6e/0x210 [ 40.201554] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.206377] invalid_op+0x14/0x20 [ 40.209817] RIP: 0010:__device_add_disk.cold+0x69/0x188 [ 40.215158] Code: 02 84 c0 74 08 3c 03 0f 8e a8 00 00 00 44 8b a5 f0 05 00 00 e9 67 ad 6a fb e8 05 45 66 f9 48 c7 c7 60 75 b2 88 e8 64 76 f7 ff <0f> 0b e9 8f b9 6a fb e8 ed 44 66 f9 48 c7 c7 60 75 b2 88 e8 4c 76 [ 40.234049] RSP: 0018:ffff888092ec7b38 EFLAGS: 00010286 [ 40.239388] RAX: 0000000000000024 RBX: 0000000000000001 RCX: 0000000000000000 [ 40.246637] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10125d8f59 [ 40.253881] RBP: ffff8880af786580 R08: 0000000000000024 R09: 0000000000000000 [ 40.261125] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880af786610 [ 40.268368] R13: ffff8880af786c10 R14: 00000000fffffff4 R15: ffff8880af786584 [ 40.275622] ? vprintk_func+0x81/0x180 [ 40.279490] ? __device_add_disk.cold+0x69/0x188 [ 40.284223] ? sprintf+0xc0/0x100 [ 40.287654] ? blk_alloc_devt+0x2d0/0x2d0 [ 40.291781] ? __raw_spin_lock_init+0x28/0x100 [ 40.296340] ? __lockdep_init_map+0x100/0x5a0 [ 40.300819] loop_add+0x628/0x8a0 [ 40.304253] loop_control_ioctl+0x16c/0x480 [ 40.308553] ? loop_lookup+0x1d0/0x1d0 [ 40.312416] ? __vfs_write+0xff/0x770 [ 40.316197] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 40.321104] ? common_file_perm+0x4e5/0x850 [ 40.325400] ? loop_lookup+0x1d0/0x1d0 [ 40.329264] do_vfs_ioctl+0xcdb/0x12e0 [ 40.333128] ? vfs_write+0x3d7/0x540 [ 40.336820] ? ioctl_preallocate+0x200/0x200 [ 40.341207] ? lock_downgrade+0x720/0x720 [ 40.345337] ? check_preemption_disabled+0x41/0x280 [ 40.350330] ? vfs_write+0x393/0x540 [ 40.354021] ? ksys_write+0x1c8/0x2a0 [ 40.357802] ksys_ioctl+0x9b/0xc0 [ 40.361233] __x64_sys_ioctl+0x6f/0xb0 [ 40.365097] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.369655] do_syscall_64+0xf9/0x620 [ 40.373436] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.378600] RIP: 0033:0x7f08c5a09819 [ 40.382293] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 40.401179] RSP: 002b:00007ffe9625d738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.408875] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f08c5a09819 [ 40.416133] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.423382] RBP: 00007ffe9625d740 R08: 0000000000000002 R09: 0000000000003337 [ 40.430661] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 40.437917] R13: 00007ffe9625d7a0 R14: 0000000000000000 R15: 0000000000000000 [ 40.445549] Kernel Offset: disabled [ 40.449221] Rebooting in 86400 seconds..