[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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... [ 55.917183][ T6731] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6731 [ 55.926797][ T6731] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 55.933155][ T6731] CPU: 0 PID: 6731 Comm: systemd-rfkill Not tainted 5.7.0-next-20200605-syzkaller #0 [ 55.942707][ T6731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.952946][ T6731] Call Trace: [ 55.956224][ T6731] dump_stack+0x18f/0x20d [ 55.960638][ T6731] check_preemption_disabled+0x20d/0x220 [ 55.966285][ T6731] ext4_mb_new_blocks+0xa4d/0x3b70 [ 55.971420][ T6731] ? ext4_ext_search_right+0x2ca/0xb20 [ 55.976875][ T6731] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 55.982598][ T6731] ext4_ext_map_blocks+0x201b/0x33e0 [ 55.987870][ T6731] ? ext4_ext_release+0x10/0x10 [ 55.992723][ T6731] ? down_write_killable+0x170/0x170 [ 55.997997][ T6731] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.003439][ T6731] ext4_map_blocks+0x4cb/0x1640 [ 56.008276][ T6731] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.013453][ T6731] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.018986][ T6731] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.024954][ T6731] ? prandom_u32_state+0xe/0x170 [ 56.029913][ T6731] ? __brelse+0x84/0xa0 [ 56.034106][ T6731] ? __ext4_new_inode+0x144/0x55e0 [ 56.039209][ T6731] ext4_getblk+0xad/0x520 [ 56.043522][ T6731] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 56.049222][ T6731] ? ext4_free_inode+0x1700/0x1700 [ 56.054326][ T6731] ext4_bread+0x7c/0x380 [ 56.058548][ T6731] ? ext4_getblk+0x520/0x520 [ 56.063142][ T6731] ? dquot_get_next_dqblk+0x180/0x180 [ 56.068496][ T6731] ext4_append+0x153/0x360 [ 56.072897][ T6731] ext4_mkdir+0x5e0/0xdf0 [ 56.077215][ T6731] ? ext4_rmdir+0xde0/0xde0 [ 56.081700][ T6731] ? security_inode_permission+0xc4/0xf0 [ 56.087325][ T6731] vfs_mkdir+0x419/0x690 [ 56.091638][ T6731] do_mkdirat+0x21e/0x280 [ 56.095947][ T6731] ? __ia32_sys_mknod+0xb0/0xb0 [ 56.100804][ T6731] ? do_syscall_64+0x1c/0xe0 [ 56.105369][ T6731] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 56.111334][ T6731] do_syscall_64+0x60/0xe0 [ 56.115725][ T6731] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.121590][ T6731] RIP: 0033:0x7f61273f6687 [ 56.126411][ T6731] Code: Bad RIP value. [ 56.130451][ T6731] RSP: 002b:00007ffd23eb4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 56.139369][ T6731] RAX: ffffffffffffffda RBX: 000055be0920b985 RCX: 00007f61273f6687 [ 56.147435][ T6731] RDX: 00007ffd23eb4050 RSI: 00000000000001ed RDI: 000055be0920b985 [ 56.155518][ T6731] RBP: 00007f61273f6680 R08: 0000000000000100 R09: 0000000000000000 [ 56.163481][ T6731] R10: 000055be0920b980 R11: 0000000000000246 R12: 00000000000001ed [ 56.171443][ T6731] R13: 00007ffd23eb4310 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 59.768275][ T197] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:5/197 [ 59.777408][ T197] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.783607][ T197] CPU: 1 PID: 197 Comm: kworker/u4:5 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.792802][ T197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.803056][ T197] Workqueue: writeback wb_workfn (flush-8:0) [ 59.809797][ T197] Call Trace: [ 59.813098][ T197] dump_stack+0x18f/0x20d [ 59.817411][ T197] check_preemption_disabled+0x20d/0x220 [ 59.823030][ T197] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.828138][ T197] ? ext4_find_extent+0x81a/0xad0 [ 59.833163][ T197] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.838598][ T197] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.844307][ T197] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.849582][ T197] ? ext4_ext_release+0x10/0x10 [ 59.854417][ T197] ? down_write_killable+0x170/0x170 [ 59.859676][ T197] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.865112][ T197] ext4_map_blocks+0x4cb/0x1640 [ 59.869962][ T197] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.875245][ T197] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.880790][ T197] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.886748][ T197] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.892261][ T197] ext4_writepages+0x1a7b/0x33c0 [ 59.897211][ T197] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.902849][ T197] ? __lock_acquire+0x2224/0x48b0 [ 59.907864][ T197] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.913827][ T197] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.919794][ T197] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.925419][ T197] ? do_writepages+0xfa/0x2a0 [ 59.930099][ T197] do_writepages+0xfa/0x2a0 [ 59.934702][ T197] ? page_writeback_cpu_online+0x10/0x10 [ 59.940328][ T197] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.945875][ T197] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.952115][ T197] ? lock_downgrade+0x840/0x840 [ 59.956979][ T197] __writeback_single_inode+0x12a/0x13d0 [ 59.962611][ T197] ? _raw_spin_unlock+0x24/0x40 [ 59.967464][ T197] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 59.973449][ T197] writeback_sb_inodes+0x515/0xdc0 [ 59.978563][ T197] ? __writeback_single_inode+0x13d0/0x13d0 [ 59.984450][ T197] __writeback_inodes_wb+0xc3/0x250 [ 59.989648][ T197] wb_writeback+0x8db/0xd50 [ 59.994137][ T197] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 60.000454][ T197] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 60.006421][ T197] ? cpumask_next+0x3c/0x40 [ 60.010908][ T197] ? get_nr_dirty_inodes+0xd6/0x130 [ 60.016212][ T197] wb_workfn+0xab3/0x1090 [ 60.020753][ T197] ? inode_wait_for_writeback+0x30/0x30 [ 60.026288][ T197] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.031810][ T197] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.037775][ T197] process_one_work+0x965/0x1690 [ 60.042698][ T197] ? lock_release+0x800/0x800 [ 60.048049][ T197] ? pwq_dec_nr_in_flight+0x310/0x310 [ 60.053413][ T197] ? rwlock_bug.part.0+0x90/0x90 [ 60.058341][ T197] worker_thread+0x96/0xe10 [ 60.062914][ T197] ? process_one_work+0x1690/0x1690 [ 60.068101][ T197] kthread+0x3b5/0x4a0 [ 60.072169][ T197] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.077888][ T197] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.083680][ T197] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.89' (ECDSA) to the list of known hosts. 2020/06/06 06:23:35 fuzzer started 2020/06/06 06:23:35 connecting to host at 10.128.0.26:45435 2020/06/06 06:23:35 checking machine... 2020/06/06 06:23:35 checking revisions... 2020/06/06 06:23:35 testing simple program... [ 61.759804][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6801 [ 61.769082][ T6801] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.774957][ T6801] CPU: 1 PID: 6801 Comm: syz-fuzzer Not tainted 5.7.0-next-20200605-syzkaller #0 [ 61.784039][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.794431][ T6801] Call Trace: [ 61.797792][ T6801] dump_stack+0x18f/0x20d [ 61.802102][ T6801] check_preemption_disabled+0x20d/0x220 [ 61.807853][ T6801] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.813261][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.818802][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.824500][ T6801] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.829764][ T6801] ? ext4_ext_release+0x10/0x10 [ 61.834659][ T6801] ? down_write_killable+0x170/0x170 [ 61.839923][ T6801] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.845487][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 61.850346][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.855562][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.861130][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.867092][ T6801] ? prandom_u32_state+0xe/0x170 [ 61.873685][ T6801] ? __brelse+0x84/0xa0 [ 61.877819][ T6801] ? __ext4_new_inode+0x144/0x55e0 [ 61.883007][ T6801] ext4_getblk+0xad/0x520 [ 61.887415][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.893114][ T6801] ? ext4_free_inode+0x1700/0x1700 [ 61.898220][ T6801] ext4_bread+0x7c/0x380 [ 61.904436][ T6801] ? ext4_getblk+0x520/0x520 [ 61.909193][ T6801] ? dquot_get_next_dqblk+0x180/0x180 [ 61.914690][ T6801] ext4_append+0x153/0x360 [ 61.919099][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 61.923461][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 61.927947][ T6801] ? security_inode_permission+0xc4/0xf0 [ 61.933583][ T6801] vfs_mkdir+0x419/0x690 [ 61.937813][ T6801] do_mkdirat+0x21e/0x280 [ 61.942200][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.947040][ T6801] ? do_syscall_64+0x1c/0xe0 [ 61.951610][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.957690][ T6801] do_syscall_64+0x60/0xe0 [ 61.962129][ T6801] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.968023][ T6801] RIP: 0033:0x4b02a0 [ 61.971907][ T6801] Code: Bad RIP value. [ 61.975963][ T6801] RSP: 002b:000000c0001034b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 61.984472][ T6801] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 61.992468][ T6801] RDX: 00000000000001c0 RSI: 000000c00009cd20 RDI: ffffffffffffff9c [ 62.000443][ T6801] RBP: 000000c000103510 R08: 0000000000000000 R09: 0000000000000000 [ 62.008571][ T6801] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 62.016517][ T6801] R13: 000000000000006a R14: 0000000000000069 R15: 0000000000000100 [ 62.036053][ T6819] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6819 [ 62.045578][ T6819] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.051670][ T6819] CPU: 1 PID: 6819 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.061326][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.071630][ T6819] Call Trace: [ 62.074919][ T6819] dump_stack+0x18f/0x20d [ 62.079327][ T6819] check_preemption_disabled+0x20d/0x220 [ 62.084950][ T6819] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.090061][ T6819] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.095505][ T6819] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.101256][ T6819] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.106532][ T6819] ? ext4_ext_release+0x10/0x10 [ 62.111388][ T6819] ? down_write_killable+0x170/0x170 [ 62.116669][ T6819] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.122115][ T6819] ext4_map_blocks+0x4cb/0x1640 [ 62.126962][ T6819] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.132164][ T6819] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.138668][ T6819] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.144646][ T6819] ? prandom_u32_state+0xe/0x170 [ 62.149563][ T6819] ? __brelse+0x84/0xa0 [ 62.153703][ T6819] ? __ext4_new_inode+0x144/0x55e0 [ 62.158802][ T6819] ext4_getblk+0xad/0x520 [ 62.163112][ T6819] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 62.168824][ T6819] ? ext4_free_inode+0x1700/0x1700 [ 62.173934][ T6819] ext4_bread+0x7c/0x380 [ 62.178201][ T6819] ? ext4_getblk+0x520/0x520 [ 62.182864][ T6819] ? dquot_get_next_dqblk+0x180/0x180 [ 62.188217][ T6819] ext4_append+0x153/0x360 [ 62.192637][ T6819] ext4_mkdir+0x5e0/0xdf0 [ 62.197990][ T6819] ? ext4_rmdir+0xde0/0xde0 [ 62.202493][ T6819] ? security_inode_permission+0xc4/0xf0 [ 62.208542][ T6819] vfs_mkdir+0x419/0x690 [ 62.213298][ T6819] do_mkdirat+0x21e/0x280 [ 62.217604][ T6819] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.222438][ T6819] ? do_syscall_64+0x1c/0xe0 [ 62.227022][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.233054][ T6819] do_syscall_64+0x60/0xe0 [ 62.237458][ T6819] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.243324][ T6819] RIP: 0033:0x45bee7 [ 62.247198][ T6819] Code: Bad RIP value. [ 62.251494][ T6819] RSP: 002b:00007ffc5d186518 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 62.259911][ T6819] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 62.267859][ T6819] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc5d1866f0 [ 62.275903][ T6819] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002b80 [ 62.283850][ T6819] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 62.291816][ T6819] R13: 00007ffc5d1866f0 R14: 8421084210842109 R15: 00007ffc5d1866fc [ 62.375249][ T6820] IPVS: ftp: loaded support on port[0] = 21 [ 62.412177][ T6820] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6820 [ 62.421737][ T6820] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.428000][ T6820] CPU: 0 PID: 6820 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.437481][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.447535][ T6820] Call Trace: [ 62.450837][ T6820] dump_stack+0x18f/0x20d [ 62.455322][ T6820] check_preemption_disabled+0x20d/0x220 [ 62.460956][ T6820] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.466050][ T6820] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.471486][ T6820] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.477283][ T6820] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.482561][ T6820] ? ext4_ext_release+0x10/0x10 [ 62.487414][ T6820] ? down_write_killable+0x170/0x170 [ 62.492682][ T6820] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.498215][ T6820] ext4_map_blocks+0x4cb/0x1640 [ 62.503060][ T6820] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.508267][ T6820] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.513824][ T6820] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.519807][ T6820] ? prandom_u32_state+0xe/0x170 [ 62.524731][ T6820] ? __brelse+0x84/0xa0 [ 62.528865][ T6820] ? __ext4_new_inode+0x144/0x55e0 [ 62.533961][ T6820] ext4_getblk+0xad/0x520 [ 62.538269][ T6820] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 62.543968][ T6820] ? ext4_free_inode+0x1700/0x1700 [ 62.549056][ T6820] ext4_bread+0x7c/0x380 [ 62.553273][ T6820] ? ext4_getblk+0x520/0x520 [ 62.557840][ T6820] ? dquot_get_next_dqblk+0x180/0x180 [ 62.563203][ T6820] ext4_append+0x153/0x360 [ 62.567687][ T6820] ext4_mkdir+0x5e0/0xdf0 [ 62.572008][ T6820] ? ext4_rmdir+0xde0/0xde0 [ 62.576491][ T6820] ? security_inode_permission+0xc4/0xf0 [ 62.582126][ T6820] vfs_mkdir+0x419/0x690 [ 62.586349][ T6820] do_mkdirat+0x21e/0x280 [ 62.590657][ T6820] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.595505][ T6820] ? do_syscall_64+0x1c/0xe0 [ 62.600074][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.606040][ T6820] do_syscall_64+0x60/0xe0 [ 62.610456][ T6820] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.616949][ T6820] RIP: 0033:0x45bee7 [ 62.620840][ T6820] Code: Bad RIP value. [ 62.624893][ T6820] RSP: 002b:00007ffc5d186408 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 62.633372][ T6820] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 62.641631][ T6820] RDX: 00007ffc5d186453 RSI: 00000000000001ff RDI: 00007ffc5d186450 [ 62.651788][ T6820] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 62.659748][ T6820] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 62.667714][ T6820] R13: 00007ffc5d186440 R14: 0000000000000000 R15: 00007ffc5d186450 [ 62.719224][ T6820] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6820 [ 62.728681][ T6820] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.734583][ T6820] CPU: 1 PID: 6820 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.744036][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.754098][ T6820] Call Trace: [ 62.757398][ T6820] dump_stack+0x18f/0x20d [ 62.761745][ T6820] check_preemption_disabled+0x20d/0x220 [ 62.767393][ T6820] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.772635][ T6820] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.779763][ T6820] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.785482][ T6820] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.790787][ T6820] ? ext4_ext_release+0x10/0x10 [ 62.795645][ T6820] ? down_write_killable+0x170/0x170 [ 62.800915][ T6820] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.806355][ T6820] ext4_map_blocks+0x4cb/0x1640 [ 62.811193][ T6820] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.816367][ T6820] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.821915][ T6820] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.827957][ T6820] ? prandom_u32_state+0xe/0x170 [ 62.833139][ T6820] ? __brelse+0x84/0xa0 [ 62.837289][ T6820] ? __ext4_new_inode+0x144/0x55e0 [ 62.842398][ T6820] ext4_getblk+0xad/0x520 [ 62.846739][ T6820] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 62.852550][ T6820] ? ext4_free_inode+0x1700/0x1700 [ 62.857733][ T6820] ext4_bread+0x7c/0x380 [ 62.861958][ T6820] ? ext4_getblk+0x520/0x520 [ 62.866523][ T6820] ? dquot_get_next_dqblk+0x180/0x180 [ 62.871904][ T6820] ext4_append+0x153/0x360 [ 62.876320][ T6820] ext4_mkdir+0x5e0/0xdf0 [ 62.880668][ T6820] ? ext4_rmdir+0xde0/0xde0 [ 62.885318][ T6820] ? security_inode_permission+0xc4/0xf0 [ 62.891183][ T6820] vfs_mkdir+0x419/0x690 [ 62.895416][ T6820] do_mkdirat+0x21e/0x280 [ 62.899843][ T6820] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.904703][ T6820] ? do_syscall_64+0x1c/0xe0 [ 62.909483][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.915572][ T6820] do_syscall_64+0x60/0xe0 [ 62.919979][ T6820] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.925896][ T6820] RIP: 0033:0x45bee7 [ 62.929782][ T6820] Code: Bad RIP value. [ 62.933831][ T6820] RSP: 002b:00007ffc5d186408 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 62.942234][ T6820] RAX: ffffffffffffffda RBX: 000000000000f4f6 RCX: 000000000045bee7 [ 62.950194][ T6820] RDX: 00007ffc5d186453 RSI: 00000000000001ff RDI: 00007ffc5d186450 [ 62.958162][ T6820] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 2020/06/06 06:23:37 building call list... [ 62.966135][ T6820] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 62.974098][ T6820] R13: 00007ffc5d186440 R14: 000000000000f4e4 R15: 00007ffc5d186450 [ 63.216847][ T197] tipc: TX() has been purged, node left! executing program [ 64.741052][ T6846] can: request_module (can-proto-0) failed. [ 65.292785][ T6846] can: request_module (can-proto-0) failed. [ 65.305228][ T6846] can: request_module (can-proto-0) failed. [ 65.452236][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 65.461664][ T1158] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.467981][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 65.477092][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.487152][ T1158] Call Trace: [ 65.490463][ T1158] dump_stack+0x18f/0x20d [ 65.494814][ T1158] check_preemption_disabled+0x20d/0x220 [ 65.500465][ T1158] ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.505610][ T1158] ? ext4_find_extent+0x81a/0xad0 [ 65.510652][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.516121][ T1158] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 65.521859][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 65.527171][ T1158] ? ext4_ext_release+0x10/0x10 [ 65.532055][ T1158] ? down_write_killable+0x170/0x170 [ 65.537362][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 65.542840][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 65.547709][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.552928][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.558572][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.564645][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 65.570109][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 65.570148][ T1158] ? lock_release+0x710/0x800 [ 65.579812][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.585626][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.591432][ T1158] ? do_writepages+0xfa/0x2a0 [ 65.596110][ T1158] do_writepages+0xfa/0x2a0 [ 65.600618][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 65.606245][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 65.611598][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 65.616784][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 65.621643][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 65.627342][ T1158] ? collapse_file+0x35a2/0x4330 [ 65.634253][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 65.640313][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 65.645490][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.651471][ T1158] collapse_file+0x35ac/0x4330 [ 65.656239][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 65.661781][ T1158] ? khugepaged+0x2506/0x3fc0 [ 65.666533][ T1158] ? xas_find+0x31a/0x880 [ 65.670838][ T1158] ? check_preemption_disabled+0x38/0x220 [ 65.678797][ T1158] khugepaged+0x3041/0x3fc0 [ 65.683296][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 65.688912][ T1158] ? lock_downgrade+0x840/0x840 [ 65.693738][ T1158] ? finish_wait+0x260/0x260 [ 65.698315][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 65.704107][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.710188][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 65.715209][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 65.721638][ T1158] kthread+0x3b5/0x4a0 [ 65.726034][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 65.731838][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 65.737552][ T1158] ret_from_fork+0x1f/0x30 [ 65.784744][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 65.793967][ T1158] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.800044][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 65.809187][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.819228][ T1158] Call Trace: [ 65.822610][ T1158] dump_stack+0x18f/0x20d [ 65.826925][ T1158] check_preemption_disabled+0x20d/0x220 [ 65.832548][ T1158] ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.837659][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.843106][ T1158] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 65.849236][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 65.854531][ T1158] ? ext4_ext_release+0x10/0x10 [ 65.859387][ T1158] ? down_write_killable+0x170/0x170 [ 65.864654][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 65.870109][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 65.874941][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.881077][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.886624][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.892608][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 65.898052][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 65.902967][ T1158] ? lock_release+0x710/0x800 [ 65.907641][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.913280][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.918922][ T1158] ? do_writepages+0xfa/0x2a0 [ 65.924482][ T1158] do_writepages+0xfa/0x2a0 [ 65.928991][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 65.934615][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 65.939742][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 65.944932][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 65.949877][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 65.955588][ T1158] ? collapse_file+0x35a2/0x4330 [ 65.960511][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 65.966562][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 65.971748][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.977723][ T1158] collapse_file+0x35ac/0x4330 [ 65.984993][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 65.990339][ T1158] ? khugepaged+0x2506/0x3fc0 [ 65.995031][ T1158] ? xas_find+0x31a/0x880 [ 65.999397][ T1158] ? check_preemption_disabled+0x38/0x220 [ 66.005184][ T1158] khugepaged+0x3041/0x3fc0 [ 66.009818][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 66.015425][ T1158] ? lock_downgrade+0x840/0x840 [ 66.020251][ T1158] ? finish_wait+0x260/0x260 [ 66.024819][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 66.030604][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.036582][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 66.041586][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 66.047204][ T1158] kthread+0x3b5/0x4a0 [ 66.051315][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.057036][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.062754][ T1158] ret_from_fork+0x1f/0x30 [ 66.107598][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 66.116694][ T1158] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 66.122578][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 66.131758][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.141799][ T1158] Call Trace: [ 66.145092][ T1158] dump_stack+0x18f/0x20d [ 66.149404][ T1158] check_preemption_disabled+0x20d/0x220 [ 66.155012][ T1158] ext4_mb_new_blocks+0xa4d/0x3b70 [ 66.160121][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 66.166080][ T1158] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 66.172226][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 66.177507][ T1158] ? ext4_ext_release+0x10/0x10 [ 66.182697][ T1158] ? down_write_killable+0x170/0x170 [ 66.187971][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 66.198028][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 66.202857][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 66.208040][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.214170][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.220129][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 66.225592][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 66.230620][ T1158] ? lock_release+0x710/0x800 [ 66.235291][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 66.240929][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 66.246541][ T1158] ? do_writepages+0xfa/0x2a0 [ 66.251195][ T1158] do_writepages+0xfa/0x2a0 [ 66.255681][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 66.261294][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 66.266300][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 66.271482][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 66.276312][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 66.282024][ T1158] ? collapse_file+0x35a2/0x4330 [ 66.286937][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 66.293026][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 66.298217][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.304184][ T1158] collapse_file+0x35ac/0x4330 [ 66.308941][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 66.314294][ T1158] ? khugepaged+0x2506/0x3fc0 [ 66.318961][ T1158] ? xas_find+0x31a/0x880 [ 66.323290][ T1158] ? check_preemption_disabled+0x38/0x220 [ 66.329003][ T1158] khugepaged+0x3041/0x3fc0 [ 66.333497][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 66.339127][ T1158] ? lock_downgrade+0x840/0x840 [ 66.343971][ T1158] ? finish_wait+0x260/0x260 [ 66.348538][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 66.354320][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.360292][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 66.365298][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 66.370908][ T1158] kthread+0x3b5/0x4a0 [ 66.374951][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.380661][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.386361][ T1158] ret_from_fork+0x1f/0x30