[ 53.871260][ T6725] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 [ 53.890870][ T6725] RSP: 002b:00007ffcfaac8d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.899267][ T6725] RAX: ffffffffffffffda RBX: 0000559f459dc985 RCX: 00007f123d886687 [ 53.907222][ T6725] RDX: 00007ffcfaac8c00 RSI: 00000000000001ed RDI: 0000559f459dc985 [ 53.915175][ T6725] RBP: 00007f123d886680 R08: 0000000000000100 R09: 0000000000000000 [ 53.923130][ T6725] R10: 0000559f459dc980 R11: 0000000000000246 R12: 00000000000001ed [ 53.931170][ T6725] R13: 00007ffcfaac8ec0 R14: 0000000000000000 R15: 0000000000000000 [ 53.939163][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 53.947283][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.947302][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 53.947313][ T21] Call Trace: [ 53.947332][ T21] dump_stack+0x188/0x20d [ 53.947352][ T21] debug_smp_processor_id.cold+0x88/0x9b [ 53.947368][ T21] ext4_mb_new_blocks+0xa77/0x3b30 [ 53.947381][ T21] ? __kmalloc+0x62f/0x7a0 [ 53.947408][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.947422][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.947443][ T21] ext4_ext_map_blocks+0x2044/0x3410 [ 53.947476][ T21] ? ext4_ext_release+0x10/0x10 [ 53.947510][ T21] ? __down_timeout+0x2d0/0x2d0 [ 53.947528][ T21] ? ext4_es_lookup_extent+0x41d/0xd30 [ 53.947542][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 53.947564][ T21] ext4_map_blocks+0x4cb/0x1640 [ 53.947586][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.947598][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 53.947622][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.947638][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.947653][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 53.947672][ T21] ext4_writepages+0x1ab7/0x3400 [ 53.947712][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 53.947727][ T21] ? __lock_acquire+0x2224/0x48a0 [ 53.947759][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 53.947781][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 53.947800][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 53.947815][ T21] ? do_writepages+0xfa/0x2a0 [ 53.947829][ T21] do_writepages+0xfa/0x2a0 [ 53.947851][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 53.947864][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 53.947885][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.947902][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.947916][ T21] ? lock_downgrade+0x840/0x840 [ 53.947938][ T21] __writeback_single_inode+0x12a/0x1410 [ 53.947953][ T21] ? _raw_spin_unlock+0x24/0x40 [ 53.947968][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 53.947988][ T21] writeback_sb_inodes+0x515/0xdd0 [ 53.948017][ T21] ? __writeback_single_inode+0x1410/0x1410 [ 53.948055][ T21] __writeback_inodes_wb+0xc3/0x250 [ 53.948079][ T21] wb_writeback+0x910/0xd90 [ 53.948096][ T21] ? print_usage_bug+0x240/0x240 [ 53.948117][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 53.948133][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 53.948154][ T21] ? cpumask_next+0x3c/0x40 [ 53.948169][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 53.948191][ T21] wb_workfn+0xadf/0x10d0 [ 53.948222][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 53.948235][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 53.948256][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.948272][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.948296][ T21] process_one_work+0x965/0x16a0 [ 53.948320][ T21] ? lock_release+0x800/0x800 [ 53.948336][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 53.948356][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 53.948381][ T21] worker_thread+0x96/0xe10 [ 53.948409][ T21] ? process_one_work+0x16a0/0x16a0 [ 53.948426][ T21] kthread+0x388/0x470 [ 53.948439][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 53.948452][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 53.948469][ T21] ret_from_fork+0x24/0x30 [ 53.999929][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 53.999951][ T21] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 53.999967][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 53.999975][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.999988][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 53.999998][ T21] Call Trace: [ 54.000016][ T21] dump_stack+0x188/0x20d [ 54.000038][ T21] debug_smp_processor_id.cold+0x88/0x9b [ 54.000053][ T21] ext4_mb_new_blocks+0xa77/0x3b30 [ 54.000066][ T21] ? __kmalloc+0x62f/0x7a0 [ 54.000093][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.000108][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.000131][ T21] ext4_ext_map_blocks+0x2044/0x3410 [ 54.000156][ T21] ? ext4_ext_release+0x10/0x10 [ 54.000191][ T21] ? __down_timeout+0x2d0/0x2d0 [ 54.000218][ T21] ? ext4_es_lookup_extent+0x41d/0xd30 [ 54.000233][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.000253][ T21] ext4_map_blocks+0x4cb/0x1640 [ 54.000273][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.000283][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.000302][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.000317][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.000332][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 54.000350][ T21] ext4_writepages+0x1ab7/0x3400 [ 54.000389][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 54.000404][ T21] ? __lock_acquire+0x2224/0x48a0 [ 54.000437][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 54.000459][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 54.000478][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 54.000494][ T21] ? do_writepages+0xfa/0x2a0 [ 54.000508][ T21] do_writepages+0xfa/0x2a0 [ 54.000530][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 54.000544][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.000564][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.000580][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.000595][ T21] ? lock_downgrade+0x840/0x840 [ 54.000617][ T21] __writeback_single_inode+0x12a/0x1410 [ 54.000633][ T21] ? _raw_spin_unlock+0x24/0x40 [ 54.000648][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 54.000667][ T21] writeback_sb_inodes+0x515/0xdd0 [ 54.000697][ T21] ? __writeback_single_inode+0x1410/0x1410 [ 54.000734][ T21] __writeback_inodes_wb+0xc3/0x250 [ 54.000758][ T21] wb_writeback+0x910/0xd90 [ 54.000775][ T21] ? print_usage_bug+0x240/0x240 [ 54.000796][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 54.000813][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 54.000834][ T21] ? cpumask_next+0x3c/0x40 [ 54.000851][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 54.000869][ T21] wb_workfn+0xadf/0x10d0 [ 54.000889][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 54.000899][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.000917][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.000932][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.000952][ T21] process_one_work+0x965/0x16a0 [ 54.000974][ T21] ? lock_release+0x800/0x800 [ 54.000988][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 54.001008][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 54.001032][ T21] worker_thread+0x96/0xe10 [ 54.001057][ T21] ? process_one_work+0x16a0/0x16a0 [ 54.001071][ T21] kthread+0x388/0x470 [ 54.001084][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 54.001096][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 54.001113][ T21] ret_from_fork+0x24/0x30 [ 54.001600][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 54.001616][ T21] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 54.001631][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 54.001639][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.001653][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 54.001663][ T21] Call Trace: [ 54.001678][ T21] dump_stack+0x188/0x20d [ 54.001698][ T21] debug_smp_processor_id.cold+0x88/0x9b [ 54.001710][ T21] ext4_mb_new_blocks+0xa77/0x3b30 [ 54.001724][ T21] ? __kmalloc+0x62f/0x7a0 [ 54.001750][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.001765][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.001787][ T21] ext4_ext_map_blocks+0x2044/0x3410 [ 54.001810][ T21] ? ext4_ext_release+0x10/0x10 [ 54.001841][ T21] ? __down_timeout+0x2d0/0x2d0 [ 54.001855][ T21] ? ext4_es_lookup_extent+0x41d/0xd30 [ 54.001868][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.001888][ T21] ext4_map_blocks+0x4cb/0x1640 [ 54.001911][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.001924][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.001945][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.001961][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.001976][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 54.001995][ T21] ext4_writepages+0x1ab7/0x3400 [ 54.002034][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 54.002048][ T21] ? __lock_acquire+0x2224/0x48a0 [ 54.002079][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 54.002099][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 54.002118][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 54.002132][ T21] ? do_writepages+0xfa/0x2a0 [ 54.002146][ T21] do_writepages+0xfa/0x2a0 [ 54.002168][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 54.002181][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.002201][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.002224][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.002238][ T21] ? lock_downgrade+0x840/0x840 [ 54.002259][ T21] __writeback_single_inode+0x12a/0x1410 [ 54.002273][ T21] ? _raw_spin_unlock+0x24/0x40 [ 54.002288][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 54.002307][ T21] writeback_sb_inodes+0x515/0xdd0 [ 54.002336][ T21] ? __writeback_single_inode+0x1410/0x1410 [ 54.002372][ T21] __writeback_inodes_wb+0xc3/0x250 [ 54.002396][ T21] wb_writeback+0x910/0xd90 [ 54.002413][ T21] ? print_usage_bug+0x240/0x240 [ 54.002433][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 54.002450][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 54.002471][ T21] ? cpumask_next+0x3c/0x40 [ 54.002487][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 54.002508][ T21] wb_workfn+0xadf/0x10d0 [ 54.002531][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 54.002543][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.002564][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.002581][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.002603][ T21] process_one_work+0x965/0x16a0 [ 54.002626][ T21] ? lock_release+0x800/0x800 [ 54.002641][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 54.002661][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 54.002687][ T21] worker_thread+0x96/0xe10 [ 54.002713][ T21] ? process_one_work+0x16a0/0x16a0 [ 54.002729][ T21] kthread+0x388/0x470 [ 54.002743][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 54.002756][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 54.002772][ T21] ret_from_fork+0x24/0x30 [ 54.004363][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 54.004379][ T21] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 54.004392][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 54.004399][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.004411][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 54.004421][ T21] Call Trace: [ 54.004437][ T21] dump_stack+0x188/0x20d [ 54.004456][ T21] debug_smp_processor_id.cold+0x88/0x9b [ 54.004471][ T21] ext4_mb_new_blocks+0xa77/0x3b30 [ 54.004484][ T21] ? __kmalloc+0x62f/0x7a0 [ 54.004510][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.004525][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.004546][ T21] ext4_ext_map_blocks+0x2044/0x3410 [ 54.004570][ T21] ? ext4_ext_release+0x10/0x10 [ 54.004610][ T21] ? __down_timeout+0x2d0/0x2d0 [ 54.004622][ T21] ? ext4_es_lookup_extent+0x41d/0xd30 [ 54.004633][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.004652][ T21] ext4_map_blocks+0x4cb/0x1640 [ 54.004672][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.004690][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.004712][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.004729][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.004744][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 54.004763][ T21] ext4_writepages+0x1ab7/0x3400 [ 54.004805][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 54.004818][ T21] ? __lock_acquire+0x2224/0x48a0 [ 54.004855][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 54.004876][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 54.004895][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 54.004910][ T21] ? do_writepages+0xfa/0x2a0 [ 54.004924][ T21] do_writepages+0xfa/0x2a0 [ 54.004945][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 54.004959][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.004977][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.004991][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.005005][ T21] ? lock_downgrade+0x840/0x840 [ 54.005026][ T21] __writeback_single_inode+0x12a/0x1410 [ 54.005041][ T21] ? _raw_spin_unlock+0x24/0x40 [ 54.005055][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 54.005072][ T21] writeback_sb_inodes+0x515/0xdd0 [ 54.005099][ T21] ? __writeback_single_inode+0x1410/0x1410 [ 54.005133][ T21] __writeback_inodes_wb+0xc3/0x250 [ 54.005156][ T21] wb_writeback+0x910/0xd90 [ 54.005173][ T21] ? print_usage_bug+0x240/0x240 [ 54.005193][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 54.005216][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 54.005236][ T21] ? cpumask_next+0x3c/0x40 [ 54.005252][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 54.005274][ T21] wb_workfn+0xadf/0x10d0 [ 54.005297][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 54.005310][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 54.005331][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.005347][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.005370][ T21] process_one_work+0x965/0x16a0 [ 54.005397][ T21] ? lock_release+0x800/0x800 [ 54.005413][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 54.005433][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 54.005458][ T21] worker_thread+0x96/0xe10 [ 54.005485][ T21] ? process_one_work+0x16a0/0x16a0 [ 54.005501][ T21] kthread+0x388/0x470 [ 54.005515][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 54.005528][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 54.005544][ T21] ret_from_fork+0x24/0x30 Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. 2020/06/12 15:37:16 fuzzer started 2020/06/12 15:37:16 connecting to host at 10.128.0.26:42613 2020/06/12 15:37:16 checking machine... 2020/06/12 15:37:16 checking revisions... 2020/06/12 15:37:16 testing simple program... syzkaller login: [ 59.783915][ T6764] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6764 [ 59.792992][ T6764] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.799230][ T6764] CPU: 1 PID: 6764 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.807146][ T6764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.817181][ T6764] Call Trace: [ 59.820457][ T6764] dump_stack+0x188/0x20d [ 59.824783][ T6764] debug_smp_processor_id.cold+0x88/0x9b [ 59.830422][ T6764] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.835532][ T6764] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.840970][ T6764] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.846719][ T6764] ext4_ext_map_blocks+0x2044/0x3410 [ 59.852180][ T6764] ? ext4_ext_release+0x10/0x10 [ 59.857059][ T6764] ? __down_timeout+0x2d0/0x2d0 [ 59.862176][ T6764] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.867640][ T6764] ext4_map_blocks+0x4cb/0x1640 [ 59.872498][ T6764] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.877781][ T6764] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.883354][ T6764] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.889600][ T6764] ? prandom_u32_state+0xe/0x170 [ 59.894539][ T6764] ? __brelse+0x84/0xa0 [ 59.898751][ T6764] ? __ext4_new_inode+0x144/0x57c0 [ 59.903869][ T6764] ext4_getblk+0xad/0x520 [ 59.908199][ T6764] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.913915][ T6764] ? ext4_free_inode+0x17e0/0x17e0 [ 59.919016][ T6764] ext4_bread+0x7c/0x380 [ 59.923448][ T6764] ? ext4_getblk+0x520/0x520 [ 59.928043][ T6764] ? dqget+0xff0/0xff0 [ 59.932367][ T6764] ext4_append+0x153/0x360 [ 59.936766][ T6764] ext4_mkdir+0x5e0/0xdf0 [ 59.943093][ T6764] ? ext4_rmdir+0xde0/0xde0 [ 59.947601][ T6764] ? security_inode_permission+0xc4/0xf0 [ 59.953232][ T6764] vfs_mkdir+0x419/0x690 [ 59.957475][ T6764] do_mkdirat+0x21e/0x280 [ 59.962393][ T6764] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.967226][ T6764] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.973184][ T6764] ? do_syscall_64+0x21/0x7d0 [ 59.977836][ T6764] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.983793][ T6764] do_syscall_64+0xf6/0x7d0 [ 59.988307][ T6764] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.994880][ T6764] RIP: 0033:0x4b02a0 [ 59.998754][ T6764] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 60.018359][ T6764] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.026775][ T6764] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 60.034728][ T6764] RDX: 00000000000001c0 RSI: 000000c0000e0a20 RDI: ffffffffffffff9c [ 60.042694][ T6764] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 60.050703][ T6764] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.058747][ T6764] R13: 0000000000000052 R14: 0000000000000051 R15: 0000000000000100 [ 60.074993][ T6776] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6776 [ 60.084437][ T6776] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.090423][ T6776] CPU: 1 PID: 6776 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.098646][ T6776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.108681][ T6776] Call Trace: [ 60.111954][ T6776] dump_stack+0x188/0x20d [ 60.116279][ T6776] debug_smp_processor_id.cold+0x88/0x9b [ 60.121900][ T6776] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.126995][ T6776] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.132439][ T6776] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.138143][ T6776] ext4_ext_map_blocks+0x2044/0x3410 [ 60.143408][ T6776] ? ext4_ext_release+0x10/0x10 [ 60.148247][ T6776] ? __down_timeout+0x2d0/0x2d0 [ 60.153074][ T6776] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.158520][ T6776] ext4_map_blocks+0x4cb/0x1640 [ 60.163354][ T6776] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.168548][ T6776] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.174087][ T6776] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.180082][ T6776] ? prandom_u32_state+0xe/0x170 [ 60.185026][ T6776] ? __brelse+0x84/0xa0 [ 60.189170][ T6776] ? __ext4_new_inode+0x144/0x57c0 [ 60.194357][ T6776] ext4_getblk+0xad/0x520 [ 60.198845][ T6776] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.204552][ T6776] ? ext4_free_inode+0x17e0/0x17e0 [ 60.209668][ T6776] ext4_bread+0x7c/0x380 [ 60.213914][ T6776] ? ext4_getblk+0x520/0x520 [ 60.218740][ T6776] ? dqget+0xff0/0xff0 [ 60.222799][ T6776] ext4_append+0x153/0x360 [ 60.227289][ T6776] ext4_mkdir+0x5e0/0xdf0 [ 60.231722][ T6776] ? ext4_rmdir+0xde0/0xde0 [ 60.236312][ T6776] ? security_inode_permission+0xc4/0xf0 [ 60.241947][ T6776] vfs_mkdir+0x419/0x690 [ 60.246211][ T6776] do_mkdirat+0x21e/0x280 [ 60.250539][ T6776] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.255386][ T6776] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.261972][ T6776] ? do_syscall_64+0x21/0x7d0 [ 60.266756][ T6776] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.272828][ T6776] do_syscall_64+0xf6/0x7d0 [ 60.277324][ T6776] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.283224][ T6776] RIP: 0033:0x45bee7 [ 60.287537][ T6776] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.308210][ T6776] RSP: 002b:00007ffe715c37c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.316782][ T6776] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.325344][ T6776] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe715c39a0 [ 60.333322][ T6776] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002ec0 [ 60.341306][ T6776] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.349280][ T6776] R13: 00007ffe715c39a0 R14: 8421084210842109 R15: 00007ffe715c39ac [ 60.432997][ T6777] IPVS: ftp: loaded support on port[0] = 21 [ 60.471770][ T6777] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6777 [ 60.481258][ T6777] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.487392][ T6777] CPU: 0 PID: 6777 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.495802][ T6777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.506730][ T6777] Call Trace: [ 60.510030][ T6777] dump_stack+0x188/0x20d [ 60.518093][ T6777] debug_smp_processor_id.cold+0x88/0x9b [ 60.523900][ T6777] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.529144][ T6777] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.534581][ T6777] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.540393][ T6777] ext4_ext_map_blocks+0x2044/0x3410 [ 60.545922][ T6777] ? ext4_ext_release+0x10/0x10 [ 60.550816][ T6777] ? __down_timeout+0x2d0/0x2d0 [ 60.556683][ T6777] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.562135][ T6777] ext4_map_blocks+0x4cb/0x1640 [ 60.567053][ T6777] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.572413][ T6777] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.577937][ T6777] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.583896][ T6777] ? prandom_u32_state+0xe/0x170 [ 60.588817][ T6777] ? __brelse+0x84/0xa0 [ 60.593054][ T6777] ? __ext4_new_inode+0x144/0x57c0 [ 60.598163][ T6777] ext4_getblk+0xad/0x520 [ 60.602475][ T6777] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.608223][ T6777] ? ext4_free_inode+0x17e0/0x17e0 [ 60.613900][ T6777] ext4_bread+0x7c/0x380 [ 60.618154][ T6777] ? ext4_getblk+0x520/0x520 [ 60.622765][ T6777] ? dqget+0xff0/0xff0 [ 60.626836][ T6777] ext4_append+0x153/0x360 [ 60.631267][ T6777] ext4_mkdir+0x5e0/0xdf0 [ 60.635594][ T6777] ? ext4_rmdir+0xde0/0xde0 [ 60.640206][ T6777] ? security_inode_permission+0xc4/0xf0 [ 60.645825][ T6777] vfs_mkdir+0x419/0x690 [ 60.650049][ T6777] do_mkdirat+0x21e/0x280 [ 60.654369][ T6777] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.659891][ T6777] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.665936][ T6777] ? do_syscall_64+0x21/0x7d0 [ 60.670588][ T6777] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.676557][ T6777] do_syscall_64+0xf6/0x7d0 [ 60.681055][ T6777] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.687128][ T6777] RIP: 0033:0x45bee7 [ 60.691021][ T6777] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.710965][ T6777] RSP: 002b:00007ffe715c36b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.719443][ T6777] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.727549][ T6777] RDX: 00007ffe715c3703 RSI: 00000000000001ff RDI: 00007ffe715c3700 [ 60.735515][ T6777] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.743489][ T6777] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 60.751721][ T6777] R13: 00007ffe715c36f0 R14: 0000000000000000 R15: 00007ffe715c3700 [ 60.807398][ T6777] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6777 [ 60.816922][ T6777] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.823014][ T6777] CPU: 0 PID: 6777 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.831432][ T6777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.841482][ T6777] Call Trace: [ 60.844782][ T6777] dump_stack+0x188/0x20d [ 60.849131][ T6777] debug_smp_processor_id.cold+0x88/0x9b [ 60.854778][ T6777] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.860556][ T6777] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.866023][ T6777] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.871758][ T6777] ext4_ext_map_blocks+0x2044/0x3410 [ 60.877061][ T6777] ? ext4_ext_release+0x10/0x10 [ 60.882009][ T6777] ? __down_timeout+0x2d0/0x2d0 [ 60.886974][ T6777] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.894024][ T6777] ext4_map_blocks+0x4cb/0x1640 [ 60.899469][ T6777] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.904645][ T6777] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.910445][ T6777] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.916676][ T6777] ? prandom_u32_state+0xe/0x170 [ 60.921901][ T6777] ? __brelse+0x84/0xa0 [ 60.926048][ T6777] ? __ext4_new_inode+0x144/0x57c0 [ 60.931489][ T6777] ext4_getblk+0xad/0x520 [ 60.935803][ T6777] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.941522][ T6777] ? ext4_free_inode+0x17e0/0x17e0 [ 60.946612][ T6777] ext4_bread+0x7c/0x380 [ 60.950865][ T6777] ? ext4_getblk+0x520/0x520 [ 60.955458][ T6777] ? dqget+0xff0/0xff0 [ 60.959515][ T6777] ext4_append+0x153/0x360 [ 60.963914][ T6777] ext4_mkdir+0x5e0/0xdf0 [ 60.968228][ T6777] ? ext4_rmdir+0xde0/0xde0 [ 60.972726][ T6777] ? security_inode_permission+0xc4/0xf0 [ 60.979036][ T6777] vfs_mkdir+0x419/0x690 [ 60.983258][ T6777] do_mkdirat+0x21e/0x280 [ 60.988002][ T6777] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.992849][ T6777] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.998826][ T6777] ? do_syscall_64+0x21/0x7d0 [ 61.003495][ T6777] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.009493][ T6777] do_syscall_64+0xf6/0x7d0 [ 61.014002][ T6777] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.019876][ T6777] RIP: 0033:0x45bee7 [ 61.023750][ T6777] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.044451][ T6777] RSP: 002b:00007ffe715c36b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 2020/06/12 15:37:18 building call list... [ 61.053382][ T6777] RAX: ffffffffffffffda RBX: 000000000000ed7c RCX: 000000000045bee7 [ 61.061335][ T6777] RDX: 00007ffe715c3703 RSI: 00000000000001ff RDI: 00007ffe715c3700 [ 61.069310][ T6777] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.077650][ T6777] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 61.085619][ T6777] R13: 00007ffe715c36f0 R14: 000000000000ed67 R15: 00007ffe715c3700 [ 61.383469][ T7] tipc: TX() has been purged, node left! executing program [ 62.819404][ T6761] can: request_module (can-proto-0) failed. [ 63.379198][ T6761] can: request_module (can-proto-0) failed. [ 63.391360][ T6761] can: request_module (can-proto-0) failed.