[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ 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. [ 51.930288][ T4761] systemd-udevd (4761) used greatest stack depth: 22128 bytes left [ 51.942119][ T4847] systemd-udevd (4847) used greatest stack depth: 21536 bytes left Starting Load/Save RF Kill Switch Status... [ 53.549204][ T6733] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6733 [ 53.558949][ T6733] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.564829][ T6733] CPU: 1 PID: 6733 Comm: systemd-rfkill Not tainted 5.7.0-next-20200605-syzkaller #0 [ 53.574259][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.584294][ T6733] Call Trace: [ 53.587589][ T6733] dump_stack+0x18f/0x20d [ 53.592878][ T6733] check_preemption_disabled+0x20d/0x220 [ 53.598497][ T6733] ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.603682][ T6733] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.609127][ T6733] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.614824][ T6733] ext4_ext_map_blocks+0x201b/0x33e0 [ 53.620101][ T6733] ? ext4_ext_release+0x10/0x10 [ 53.624954][ T6733] ? down_write_killable+0x170/0x170 [ 53.630216][ T6733] ? ext4_es_lookup_extent+0x41d/0xd10 [ 53.635778][ T6733] ext4_map_blocks+0x4cb/0x1640 [ 53.640627][ T6733] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.645823][ T6733] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.651352][ T6733] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.657308][ T6733] ? prandom_u32_state+0xe/0x170 [ 53.662233][ T6733] ? __brelse+0x84/0xa0 [ 53.666378][ T6733] ? __ext4_new_inode+0x144/0x55e0 [ 53.671474][ T6733] ext4_getblk+0xad/0x520 [ 53.675780][ T6733] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.681492][ T6733] ? ext4_free_inode+0x1700/0x1700 [ 53.686592][ T6733] ext4_bread+0x7c/0x380 [ 53.690821][ T6733] ? ext4_getblk+0x520/0x520 [ 53.695406][ T6733] ? dquot_get_next_dqblk+0x180/0x180 [ 53.700758][ T6733] ext4_append+0x153/0x360 [ 53.705168][ T6733] ext4_mkdir+0x5e0/0xdf0 [ 53.709480][ T6733] ? ext4_rmdir+0xde0/0xde0 [ 53.713968][ T6733] ? security_inode_permission+0xc4/0xf0 [ 53.719580][ T6733] vfs_mkdir+0x419/0x690 [ 53.723800][ T6733] do_mkdirat+0x21e/0x280 [ 53.728120][ T6733] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.732946][ T6733] ? do_syscall_64+0x1c/0xe0 [ 53.737511][ T6733] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.743480][ T6733] do_syscall_64+0x60/0xe0 [ 53.747898][ T6733] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.754738][ T6733] RIP: 0033:0x7efd2d0bb687 [ 53.759127][ T6733] Code: Bad RIP value. [ 53.763186][ T6733] RSP: 002b:00007ffca96bec88 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.771571][ T6733] RAX: ffffffffffffffda RBX: 00005647f52ae985 RCX: 00007efd2d0bb687 [ 53.779806][ T6733] RDX: 00007ffca96beb50 RSI: 00000000000001ed RDI: 00005647f52ae985 [ 53.787763][ T6733] RBP: 00007efd2d0bb680 R08: 0000000000000100 R09: 0000000000000000 [ 53.795710][ T6733] R10: 00005647f52ae980 R11: 0000000000000246 R12: 00000000000001ed [ 53.803668][ T6733] R13: 00007ffca96bee10 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.716925][ T295] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/295 [ 56.726183][ T295] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.732397][ T295] CPU: 0 PID: 295 Comm: kworker/u4:4 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 56.741615][ T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.751708][ T295] Workqueue: writeback wb_workfn (flush-8:0) [ 56.757680][ T295] Call Trace: [ 56.760951][ T295] dump_stack+0x18f/0x20d [ 56.765277][ T295] check_preemption_disabled+0x20d/0x220 [ 56.770911][ T295] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.776022][ T295] ? ext4_find_extent+0x81a/0xad0 [ 56.781045][ T295] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.786485][ T295] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.792203][ T295] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.797503][ T295] ? ext4_ext_release+0x10/0x10 [ 56.802343][ T295] ? down_write_killable+0x170/0x170 [ 56.807610][ T295] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.813077][ T295] ext4_map_blocks+0x4cb/0x1640 [ 56.817923][ T295] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.823118][ T295] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.828644][ T295] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.834624][ T295] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.840062][ T295] ext4_writepages+0x1a7b/0x33c0 [ 56.844987][ T295] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.850596][ T295] ? __lock_acquire+0x2224/0x48b0 [ 56.855619][ T295] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.861594][ T295] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.867562][ T295] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.873184][ T295] ? do_writepages+0xfa/0x2a0 [ 56.878462][ T295] do_writepages+0xfa/0x2a0 [ 56.883917][ T295] ? page_writeback_cpu_online+0x10/0x10 [ 56.889532][ T295] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.895122][ T295] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.901129][ T295] ? lock_downgrade+0x840/0x840 [ 56.905985][ T295] __writeback_single_inode+0x12a/0x13d0 [ 56.911620][ T295] ? _raw_spin_unlock+0x24/0x40 [ 56.916458][ T295] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.922426][ T295] writeback_sb_inodes+0x515/0xdc0 [ 56.927542][ T295] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.933451][ T295] __writeback_inodes_wb+0xc3/0x250 [ 56.938633][ T295] wb_writeback+0x8db/0xd50 [ 56.943145][ T295] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.949462][ T295] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.955361][ T295] ? cpumask_next+0x3c/0x40 [ 56.959874][ T295] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.965078][ T295] wb_workfn+0xab3/0x1090 [ 56.969518][ T295] ? inode_wait_for_writeback+0x30/0x30 [ 56.975069][ T295] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.980635][ T295] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.986623][ T295] process_one_work+0x965/0x1690 [ 56.991585][ T295] ? lock_release+0x800/0x800 [ 56.996261][ T295] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.001613][ T295] ? rwlock_bug.part.0+0x90/0x90 [ 57.006562][ T295] worker_thread+0x96/0xe10 [ 57.011105][ T295] ? process_one_work+0x1690/0x1690 [ 57.016281][ T295] kthread+0x3b5/0x4a0 [ 57.020624][ T295] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.026343][ T295] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.032049][ T295] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.184' (ECDSA) to the list of known hosts. 2020/06/07 14:10:10 fuzzer started 2020/06/07 14:10:10 connecting to host at 10.128.0.26:34549 2020/06/07 14:10:10 checking machine... 2020/06/07 14:10:10 checking revisions... 2020/06/07 14:10:10 testing simple program... [ 58.779940][ T6808] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6808 [ 58.789180][ T6808] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.795184][ T6808] CPU: 0 PID: 6808 Comm: syz-fuzzer Not tainted 5.7.0-next-20200605-syzkaller #0 [ 58.804464][ T6808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.814708][ T6808] Call Trace: [ 58.817989][ T6808] dump_stack+0x18f/0x20d [ 58.822334][ T6808] check_preemption_disabled+0x20d/0x220 [ 58.827948][ T6808] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.833050][ T6808] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.838509][ T6808] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.844224][ T6808] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.849951][ T6808] ? ext4_ext_release+0x10/0x10 [ 58.854859][ T6808] ? down_write_killable+0x170/0x170 [ 58.860190][ T6808] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.865666][ T6808] ext4_map_blocks+0x4cb/0x1640 [ 58.876270][ T6808] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.881485][ T6808] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.887046][ T6808] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.893036][ T6808] ? prandom_u32_state+0xe/0x170 [ 58.897985][ T6808] ? __brelse+0x84/0xa0 [ 58.902151][ T6808] ? __ext4_new_inode+0x144/0x55e0 [ 58.907370][ T6808] ext4_getblk+0xad/0x520 [ 58.911707][ T6808] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.917440][ T6808] ? ext4_free_inode+0x1700/0x1700 [ 58.922557][ T6808] ext4_bread+0x7c/0x380 [ 58.926784][ T6808] ? ext4_getblk+0x520/0x520 [ 58.932047][ T6808] ? dquot_get_next_dqblk+0x180/0x180 [ 58.937406][ T6808] ext4_append+0x153/0x360 [ 58.941804][ T6808] ext4_mkdir+0x5e0/0xdf0 [ 58.946145][ T6808] ? ext4_rmdir+0xde0/0xde0 [ 58.950643][ T6808] ? security_inode_permission+0xc4/0xf0 [ 58.956265][ T6808] vfs_mkdir+0x419/0x690 [ 58.960519][ T6808] do_mkdirat+0x21e/0x280 [ 58.964858][ T6808] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.969715][ T6808] ? do_syscall_64+0x1c/0xe0 [ 58.974567][ T6808] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.980540][ T6808] do_syscall_64+0x60/0xe0 [ 58.984946][ T6808] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.990837][ T6808] RIP: 0033:0x4b02a0 [ 58.994705][ T6808] Code: Bad RIP value. [ 58.998747][ T6808] RSP: 002b:000000c00011f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.007372][ T6808] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.015363][ T6808] RDX: 00000000000001c0 RSI: 000000c000026e00 RDI: ffffffffffffff9c [ 59.023312][ T6808] RBP: 000000c00011f510 R08: 0000000000000000 R09: 0000000000000000 [ 59.031555][ T6808] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.039527][ T6808] R13: 0000000000000071 R14: 0000000000000070 R15: 0000000000000100 [ 59.057410][ T6824] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6824 [ 59.067878][ T6824] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.074459][ T6824] CPU: 0 PID: 6824 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.085190][ T6824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.095241][ T6824] Call Trace: [ 59.098541][ T6824] dump_stack+0x18f/0x20d [ 59.102862][ T6824] check_preemption_disabled+0x20d/0x220 [ 59.108478][ T6824] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.113587][ T6824] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.119031][ T6824] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.124732][ T6824] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.130016][ T6824] ? ext4_ext_release+0x10/0x10 [ 59.134875][ T6824] ? down_write_killable+0x170/0x170 [ 59.140156][ T6824] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.145603][ T6824] ext4_map_blocks+0x4cb/0x1640 [ 59.150441][ T6824] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.155642][ T6824] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.161164][ T6824] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.167122][ T6824] ? prandom_u32_state+0xe/0x170 [ 59.172047][ T6824] ? __brelse+0x84/0xa0 [ 59.176340][ T6824] ? __ext4_new_inode+0x144/0x55e0 [ 59.181514][ T6824] ext4_getblk+0xad/0x520 [ 59.185823][ T6824] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.191610][ T6824] ? ext4_free_inode+0x1700/0x1700 [ 59.196712][ T6824] ext4_bread+0x7c/0x380 [ 59.200942][ T6824] ? ext4_getblk+0x520/0x520 [ 59.205525][ T6824] ? dquot_get_next_dqblk+0x180/0x180 [ 59.210886][ T6824] ext4_append+0x153/0x360 [ 59.215283][ T6824] ext4_mkdir+0x5e0/0xdf0 [ 59.219604][ T6824] ? ext4_rmdir+0xde0/0xde0 [ 59.225049][ T6824] ? security_inode_permission+0xc4/0xf0 [ 59.230677][ T6824] vfs_mkdir+0x419/0x690 [ 59.235118][ T6824] do_mkdirat+0x21e/0x280 [ 59.239461][ T6824] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.244303][ T6824] ? do_syscall_64+0x1c/0xe0 [ 59.248884][ T6824] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.254851][ T6824] do_syscall_64+0x60/0xe0 [ 59.259257][ T6824] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.265174][ T6824] RIP: 0033:0x45bee7 [ 59.269214][ T6824] Code: Bad RIP value. [ 59.273301][ T6824] RSP: 002b:00007ffd725e61e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.281688][ T6824] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.289667][ T6824] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffd725e63c0 [ 59.299702][ T6824] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000027c0 [ 59.307670][ T6824] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.316315][ T6824] R13: 00007ffd725e63c0 R14: 8421084210842109 R15: 00007ffd725e63cc [ 59.331709][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 59.341125][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.347735][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.356838][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.372908][ T1153] Call Trace: [ 59.376204][ T1153] dump_stack+0x18f/0x20d [ 59.380550][ T1153] check_preemption_disabled+0x20d/0x220 [ 59.386189][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.391327][ T1153] ? ext4_find_extent+0x81a/0xad0 [ 59.396366][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.401832][ T1153] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.407574][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.412879][ T1153] ? ext4_ext_release+0x10/0x10 [ 59.417754][ T1153] ? down_write_killable+0x170/0x170 [ 59.423046][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.428545][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 59.433425][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.438637][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.443774][ T6825] IPVS: ftp: loaded support on port[0] = 21 [ 59.444187][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.456037][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.461529][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 59.466478][ T1153] ? lock_release+0x710/0x800 [ 59.471178][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.476866][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.482500][ T1153] ? do_writepages+0xfa/0x2a0 [ 59.487207][ T1153] do_writepages+0xfa/0x2a0 [ 59.490289][ T6825] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6825 [ 59.491714][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 59.501101][ T6825] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.506673][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 59.506687][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 59.506703][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 59.506724][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.506738][ T1153] ? collapse_file+0x35a2/0x4330 [ 59.506755][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.544285][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.549467][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.555435][ T1153] collapse_file+0x35ac/0x4330 [ 59.560212][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 59.566433][ T1153] ? khugepaged+0x2506/0x3fc0 [ 59.571100][ T1153] ? xas_find+0x31a/0x880 [ 59.575415][ T1153] ? check_preemption_disabled+0x38/0x220 [ 59.581138][ T1153] khugepaged+0x3041/0x3fc0 [ 59.586431][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.592059][ T1153] ? lock_downgrade+0x840/0x840 [ 59.597072][ T1153] ? finish_wait+0x260/0x260 [ 59.601653][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.607448][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.613421][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 59.618428][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.624044][ T1153] kthread+0x3b5/0x4a0 [ 59.628098][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.633800][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.639505][ T1153] ret_from_fork+0x1f/0x30 [ 59.643921][ T6825] CPU: 0 PID: 6825 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.653413][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.663505][ T6825] Call Trace: [ 59.666808][ T6825] dump_stack+0x18f/0x20d [ 59.671171][ T6825] check_preemption_disabled+0x20d/0x220 [ 59.676808][ T6825] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.681969][ T6825] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.687611][ T6825] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.693350][ T6825] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.698644][ T6825] ? ext4_ext_release+0x10/0x10 [ 59.703496][ T6825] ? down_write_killable+0x170/0x170 [ 59.708778][ T6825] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.712089][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 59.714326][ T6825] ext4_map_blocks+0x4cb/0x1640 [ 59.714348][ T6825] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.714364][ T6825] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.714381][ T6825] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.714397][ T6825] ? prandom_u32_state+0xe/0x170 [ 59.714416][ T6825] ? __brelse+0x84/0xa0 [ 59.714433][ T6825] ? __ext4_new_inode+0x144/0x55e0 [ 59.714451][ T6825] ext4_getblk+0xad/0x520 [ 59.714474][ T6825] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.714498][ T6825] ? ext4_free_inode+0x1700/0x1700 [ 59.714514][ T6825] ext4_bread+0x7c/0x380 [ 59.714531][ T6825] ? ext4_getblk+0x520/0x520 [ 59.723641][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.728375][ T6825] ? dquot_get_next_dqblk+0x180/0x180 [ 59.728398][ T6825] ext4_append+0x153/0x360 [ 59.728418][ T6825] ext4_mkdir+0x5e0/0xdf0 [ 59.728441][ T6825] ? ext4_rmdir+0xde0/0xde0 [ 59.808274][ T6825] ? security_inode_permission+0xc4/0xf0 [ 59.813895][ T6825] vfs_mkdir+0x419/0x690 [ 59.818128][ T6825] do_mkdirat+0x21e/0x280 [ 59.822464][ T6825] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.827298][ T6825] ? do_syscall_64+0x1c/0xe0 [ 59.831895][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.837860][ T6825] do_syscall_64+0x60/0xe0 [ 59.842268][ T6825] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.848143][ T6825] RIP: 0033:0x45bee7 [ 59.852013][ T6825] Code: Bad RIP value. [ 59.856077][ T6825] RSP: 002b:00007ffd725e60d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 59.864476][ T6825] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.872901][ T6825] RDX: 00007ffd725e6123 RSI: 00000000000001ff RDI: 00007ffd725e6120 [ 59.880886][ T6825] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.888845][ T6825] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 59.896797][ T6825] R13: 00007ffd725e6110 R14: 0000000000000000 R15: 00007ffd725e6120 [ 59.904772][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.914674][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.924742][ T1153] Call Trace: [ 59.928045][ T1153] dump_stack+0x18f/0x20d [ 59.932537][ T1153] check_preemption_disabled+0x20d/0x220 [ 59.938271][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.943404][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.948967][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.955158][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.960458][ T1153] ? ext4_ext_release+0x10/0x10 [ 59.965369][ T1153] ? down_write_killable+0x170/0x170 [ 59.970663][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.976134][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 59.981004][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.986256][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.992595][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.998677][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.001650][ T6825] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6825 [ 60.004663][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 60.014057][ T6825] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.019199][ T1153] ? lock_release+0x710/0x800 [ 60.019224][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.019264][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.019283][ T1153] ? do_writepages+0xfa/0x2a0 [ 60.050542][ T1153] do_writepages+0xfa/0x2a0 [ 60.055033][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 60.060648][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 60.065668][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 60.070861][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 60.075711][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.082706][ T1153] ? collapse_file+0x35a2/0x4330 [ 60.087663][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.093732][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.098915][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.105318][ T1153] collapse_file+0x35ac/0x4330 [ 60.110089][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 60.115461][ T1153] ? khugepaged+0x2506/0x3fc0 [ 60.121091][ T1153] ? xas_find+0x31a/0x880 [ 60.125429][ T1153] ? check_preemption_disabled+0x38/0x220 [ 60.131141][ T1153] khugepaged+0x3041/0x3fc0 [ 60.136099][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.141730][ T1153] ? lock_downgrade+0x840/0x840 [ 60.146698][ T1153] ? finish_wait+0x260/0x260 [ 60.151296][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.157125][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.163104][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 60.168117][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.173745][ T1153] kthread+0x3b5/0x4a0 [ 60.178410][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.184146][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.189857][ T1153] ret_from_fork+0x1f/0x30 [ 60.194803][ T6825] CPU: 0 PID: 6825 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.204876][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.214935][ T6825] Call Trace: [ 60.218243][ T6825] dump_stack+0x18f/0x20d [ 60.222590][ T6825] check_preemption_disabled+0x20d/0x220 [ 60.228324][ T6825] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.232384][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 60.233469][ T6825] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.233487][ T6825] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.233507][ T6825] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.233529][ T6825] ? ext4_ext_release+0x10/0x10 [ 60.242671][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.248529][ T6825] ? down_write_killable+0x170/0x170 [ 60.248544][ T6825] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.248564][ T6825] ext4_map_blocks+0x4cb/0x1640 [ 60.286289][ T6825] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.291477][ T6825] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.297011][ T6825] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.302973][ T6825] ? prandom_u32_state+0xe/0x170 [ 60.307897][ T6825] ? __brelse+0x84/0xa0 [ 60.313003][ T6825] ? __ext4_new_inode+0x144/0x55e0 [ 60.318126][ T6825] ext4_getblk+0xad/0x520 [ 60.322457][ T6825] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.328166][ T6825] ? ext4_free_inode+0x1700/0x1700 [ 60.333268][ T6825] ext4_bread+0x7c/0x380 [ 60.337495][ T6825] ? ext4_getblk+0x520/0x520 [ 60.342080][ T6825] ? dquot_get_next_dqblk+0x180/0x180 [ 60.347446][ T6825] ext4_append+0x153/0x360 [ 60.351851][ T6825] ext4_mkdir+0x5e0/0xdf0 [ 60.356173][ T6825] ? ext4_rmdir+0xde0/0xde0 [ 60.360664][ T6825] ? security_inode_permission+0xc4/0xf0 [ 60.366302][ T6825] vfs_mkdir+0x419/0x690 [ 60.370532][ T6825] do_mkdirat+0x21e/0x280 [ 60.374848][ T6825] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.379694][ T6825] ? do_syscall_64+0x1c/0xe0 [ 60.384297][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.390290][ T6825] do_syscall_64+0x60/0xe0 [ 60.394712][ T6825] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.400596][ T6825] RIP: 0033:0x45bee7 [ 60.404470][ T6825] Code: Bad RIP value. [ 60.408517][ T6825] RSP: 002b:00007ffd725e60d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.417872][ T6825] RAX: ffffffffffffffda RBX: 000000000000ea35 RCX: 000000000045bee7 [ 60.425849][ T6825] RDX: 00007ffd725e6123 RSI: 00000000000001ff RDI: 00007ffd725e6120 [ 60.433810][ T6825] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.441784][ T6825] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 60.449740][ T6825] R13: 00007ffd725e6110 R14: 000000000000ea2b R15: 00007ffd725e6120 [ 60.457723][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.466831][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.476885][ T1153] Call Trace: [ 60.480181][ T1153] dump_stack+0x18f/0x20d [ 60.484526][ T1153] check_preemption_disabled+0x20d/0x220 [ 60.490255][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.495386][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.500857][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.507020][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.512325][ T1153] ? ext4_ext_release+0x10/0x10 [ 60.517201][ T1153] ? down_write_killable+0x170/0x170 [ 60.524052][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.529525][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 60.534386][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.539595][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.545144][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.551138][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.556604][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 60.561550][ T1153] ? lock_release+0x710/0x800 [ 60.566240][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.571889][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.577531][ T1153] ? do_writepages+0xfa/0x2a0 [ 60.582200][ T1153] do_writepages+0xfa/0x2a0 [ 60.586686][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 60.592298][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 60.598006][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 60.603187][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 60.608038][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.613748][ T1153] ? collapse_file+0x35a2/0x4330 [ 60.620844][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.626898][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.632086][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.638049][ T1153] collapse_file+0x35ac/0x4330 [ 60.642805][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 60.648166][ T1153] ? khugepaged+0x2506/0x3fc0 [ 60.652834][ T1153] ? xas_find+0x31a/0x880 [ 60.657146][ T1153] ? check_preemption_disabled+0x38/0x220 [ 60.665833][ T1153] khugepaged+0x3041/0x3fc0 [ 60.670354][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.675985][ T1153] ? lock_downgrade+0x840/0x840 [ 60.680832][ T1153] ? finish_wait+0x260/0x260 [ 60.685416][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.691205][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.697775][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 60.702783][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.708657][ T1153] kthread+0x3b5/0x4a0 [ 60.712731][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.718437][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.724139][ T1153] ret_from_fork+0x1f/0x30 2020/06/07 14:10:12 building call list... [ 61.004601][ T6764] tipc: TX() has been purged, node left! executing program [ 62.558964][ T6851] can: request_module (can-proto-0) failed. [ 63.060907][ T6851] can: request_module (can-proto-0) failed. [ 63.072886][ T6851] can: request_module (can-proto-0) failed.