[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts. syzkaller login: [ 28.673508] IPVS: ftp: loaded support on port[0] = 21 [ 28.739258] chnl_net:caif_netlink_parms(): no params data found [ 28.804548] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.811331] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.819770] device bridge_slave_0 entered promiscuous mode [ 28.828894] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.835784] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.842650] device bridge_slave_1 entered promiscuous mode [ 28.859506] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 28.868148] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 28.885936] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 28.893082] team0: Port device team_slave_0 added [ 28.899228] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 28.906863] team0: Port device team_slave_1 added [ 28.921343] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 28.927856] 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. [ 28.953751] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 28.965952] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 28.972206] 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. [ 28.998152] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 29.012278] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 29.019740] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 29.039475] device hsr_slave_0 entered promiscuous mode [ 29.045950] device hsr_slave_1 entered promiscuous mode [ 29.051839] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 29.059887] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 29.119666] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.126084] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.132817] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.139209] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.166545] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 29.172618] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.182031] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.190769] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.210111] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.217301] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.228023] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 29.234090] 8021q: adding VLAN 0 to HW filter on device team0 [ 29.242630] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.250316] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.256710] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.274878] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.282465] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.288899] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.296603] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 29.304140] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 29.312103] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 29.323083] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 29.333282] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 29.344862] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 29.351160] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.359422] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.367514] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 29.378987] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 29.386723] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 29.393354] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 29.404030] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 29.453128] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 29.462636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.493748] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 29.501698] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 29.508997] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 29.518023] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.525840] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.532618] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.541526] device veth0_vlan entered promiscuous mode [ 29.549893] device veth1_vlan entered promiscuous mode [ 29.555892] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 29.564840] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 29.575502] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 29.584249] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 29.591332] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 29.598801] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.607631] device veth0_macvtap entered promiscuous mode [ 29.613602] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 29.622495] device veth1_macvtap entered promiscuous mode [ 29.631529] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 29.640855] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 29.651423] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 29.658930] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.667541] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 29.677089] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 29.684544] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 29.724659] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 29.777920] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 29.799375] ------------[ cut here ]------------ [ 29.804308] WARNING: CPU: 0 PID: 8216 at include/linux/backing-dev.h:335 account_page_dirtied+0x8df/0xbb0 [ 29.814002] Kernel panic - not syncing: panic_on_warn set ... [ 29.814002] [ 29.821368] CPU: 0 PID: 8216 Comm: syz-executor253 Not tainted 4.14.295-syzkaller #0 [ 29.829240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 29.838576] Call Trace: [ 29.841143] dump_stack+0x1b2/0x281 [ 29.844749] panic+0x1f9/0x42d [ 29.847918] ? add_taint.cold+0x16/0x16 [ 29.851870] ? account_page_dirtied+0x8df/0xbb0 [ 29.856514] ? account_page_dirtied+0x8df/0xbb0 [ 29.861156] __warn.cold+0x20/0x44 [ 29.864672] ? ist_end_non_atomic+0x10/0x10 [ 29.868968] ? account_page_dirtied+0x8df/0xbb0 [ 29.873614] report_bug+0x208/0x250 [ 29.877215] do_error_trap+0x195/0x2d0 [ 29.881077] ? math_error+0x2d0/0x2d0 [ 29.884853] ? nilfs_btree_insert+0x81/0x1860 [ 29.889325] ? nilfs_btree_broken_node_block+0x41/0x300 [ 29.894687] ? trace_hardirqs_on+0x10/0x10 [ 29.898897] ? trace_hardirqs_on+0x10/0x10 [ 29.903109] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.907939] invalid_op+0x1b/0x40 [ 29.911388] RIP: 0010:account_page_dirtied+0x8df/0xbb0 [ 29.916648] RSP: 0000:ffff88809440e9f0 EFLAGS: 00010097 [ 29.921996] RAX: ffff8880aff084c0 RBX: ffff8880af364140 RCX: 1ffffffff127a5d4 [ 29.929244] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000086 [ 29.936488] RBP: ffff88808c403b58 R08: ffffffff8ba641ac R09: 0000000000001e2e [ 29.943733] R10: 0000000000000001 R11: ffff8880aff084c0 R12: ffffea00026cd700 [ 29.950980] R13: ffff88808c4039c8 R14: ffff88808c4039c8 R15: ffffea00026cd720 [ 29.958243] __set_page_dirty+0x77/0x2a0 [ 29.962281] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 29.967715] mark_buffer_dirty+0x307/0x480 [ 29.971928] nilfs_btree_do_insert+0x293/0x3b0 [ 29.976490] nilfs_btree_insert+0xc5a/0x1860 [ 29.980881] ? nilfs_btree_lookup_contig+0x9d0/0x9d0 [ 29.985963] nilfs_bmap_insert+0x21b/0x380 [ 29.990174] ? nilfs_bmap_lookup_contig+0x170/0x170 [ 29.995171] nilfs_mdt_get_block+0x4a1/0xb90 [ 29.999560] ? nilfs_mdt_read_block+0x320/0x320 [ 30.004225] ? lock_downgrade+0x740/0x740 [ 30.008350] nilfs_palloc_get_block+0xb2/0x250 [ 30.012907] nilfs_palloc_get_entry_block+0x17d/0x230 [ 30.018073] nilfs_dat_prepare_alloc+0x57/0xa0 [ 30.022634] ? nilfs_bmap_find_target_in_group+0xe/0x170 [ 30.028173] nilfs_direct_insert+0x2db/0x390 [ 30.032559] ? nilfs_direct_delete+0x250/0x250 [ 30.037120] nilfs_bmap_insert+0x21b/0x380 [ 30.041327] ? nilfs_direct_last_key+0xc0/0xc0 [ 30.045889] ? nilfs_bmap_lookup_contig+0x170/0x170 [ 30.050884] ? nilfs_get_block+0x210/0x7a0 [ 30.055097] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.060523] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.065517] ? nilfs_transaction_begin+0x274/0xa00 [ 30.070425] nilfs_get_block+0x434/0x7a0 [ 30.074462] ? __nilfs_mark_inode_dirty+0x1d0/0x1d0 [ 30.079454] ? create_empty_buffers+0x282/0x470 [ 30.084096] ? do_raw_spin_unlock+0x164/0x220 [ 30.088568] ? _raw_spin_unlock+0x29/0x40 [ 30.092696] ? create_page_buffers+0xce/0x1c0 [ 30.097171] __block_write_begin_int+0x35c/0x11d0 [ 30.101997] ? __nilfs_mark_inode_dirty+0x1d0/0x1d0 [ 30.106995] ? __breadahead_gfp+0x150/0x150 [ 30.111294] ? wait_for_stable_page+0xe3/0x260 [ 30.115850] ? __nilfs_mark_inode_dirty+0x1d0/0x1d0 [ 30.120842] block_write_begin+0x58/0x270 [ 30.124973] nilfs_write_begin+0x95/0x1c0 [ 30.129097] generic_perform_write+0x1c9/0x420 [ 30.133659] ? filemap_page_mkwrite+0x2d0/0x2d0 [ 30.138319] ? current_time+0xb0/0xb0 [ 30.142109] ? lock_acquire+0x170/0x3f0 [ 30.146062] __generic_file_write_iter+0x227/0x590 [ 30.150967] generic_file_write_iter+0x36f/0x650 [ 30.155706] __vfs_write+0x44c/0x630 [ 30.159399] ? kernel_read+0x110/0x110 [ 30.163264] ? lock_downgrade+0x740/0x740 [ 30.167410] ? retint_kernel+0x2d/0x2d [ 30.171272] __kernel_write+0xf5/0x330 [ 30.175134] dump_emit+0x153/0x280 [ 30.178653] ? zap_process+0x290/0x290 [ 30.182517] elf_core_dump+0x2672/0x4410 [ 30.186559] ? set_brk+0x150/0x150 [ 30.190075] ? __fsnotify_inode_delete+0x20/0x20 [ 30.194826] ? __fsnotify_update_child_dentry_flags.part.0+0x2e0/0x2e0 [ 30.201566] ? nilfs_setattr+0xb2/0x220 [ 30.205514] ? nilfs_write_failed+0x90/0x90 [ 30.209811] ? trace_hardirqs_on+0x10/0x10 [ 30.214026] ? do_truncate+0x129/0x1a0 [ 30.217903] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.223333] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.228334] do_coredump+0x1a43/0x29f0 [ 30.232200] ? kasan_slab_free+0x12d/0x1a0 [ 30.236411] ? kasan_slab_free+0xc7/0x1a0 [ 30.240534] ? prepare_exit_to_usermode+0xc0/0x210 [ 30.245440] ? cn_esc_printf+0x460/0x460 [ 30.249475] ? debug_check_no_obj_freed+0x2c0/0x680 [ 30.254468] ? lock_acquire+0x170/0x3f0 [ 30.258429] ? lock_downgrade+0x740/0x740 [ 30.262561] ? _raw_spin_unlock_irq+0x24/0x80 [ 30.267032] get_signal+0xc9f/0x1ca0 [ 30.270736] do_signal+0x7c/0x1550 [ 30.274258] ? is_prefetch.part.0+0x2f0/0x2f0 [ 30.278735] ? vm_insert_page+0x7c0/0x7c0 [ 30.282860] ? setup_sigcontext+0x820/0x820 [ 30.287158] ? bad_area+0x4e/0x80 [ 30.290593] ? __bad_area_nosemaphore+0x1d6/0x2c0 [ 30.295412] ? up_read+0x17/0x30 [ 30.298755] ? __do_page_fault+0x159/0xad0 [ 30.302963] ? exit_to_usermode_loop+0x41/0x200 [ 30.307618] exit_to_usermode_loop+0x160/0x200 [ 30.312183] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.317001] prepare_exit_to_usermode+0x1af/0x210 [ 30.321820] ? page_fault+0x2f/0x50 [ 30.325425] retint_user+0x8/0x18 [ 30.328852] RIP: 0033: (null) [ 30.332711] RSP: 002b:0000000020000148 EFLAGS: 00010217 [ 30.338051] RAX: 0000000000000000 RBX: 00007fff41d7c968 RCX: 00007f474080eb59 [ 30.345297] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000084821080 [ 30.352541] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000140 [ 30.359785] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff41d7c990 [ 30.367028] R13: 00007fff41d7c990 R14: 00007f474084d423 R15: 00007fff41d7c970 [ 30.374644] Kernel Offset: disabled [ 30.378324] Rebooting in 86400 seconds..