[ OK ] Started Getty on tty3. [ 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... Starting Load/Save RF Kill Switch Status... [ 52.780351][ T6738] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6738 [ 52.789956][ T6738] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 52.795943][ T6738] CPU: 0 PID: 6738 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 52.804177][ T6738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.814576][ T6738] Call Trace: [ 52.817873][ T6738] dump_stack+0x188/0x20d [ 52.822217][ T6738] debug_smp_processor_id.cold+0x88/0x9b [ 52.827852][ T6738] ext4_mb_new_blocks+0xa77/0x3b30 [ 52.833015][ T6738] ? ext4_ext_search_right+0x2ca/0xb20 [ 52.838652][ T6738] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 52.844386][ T6738] ext4_ext_map_blocks+0x2044/0x3410 [ 52.849680][ T6738] ? ext4_ext_release+0x10/0x10 [ 52.854557][ T6738] ? __down_timeout+0x2d0/0x2d0 [ 52.859410][ T6738] ? ext4_es_lookup_extent+0x41d/0xd30 [ 52.864879][ T6738] ext4_map_blocks+0x4cb/0x1640 [ 52.869939][ T6738] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 52.869955][ T6738] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 52.869975][ T6738] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 52.886699][ T6738] ? prandom_u32_state+0xe/0x170 [ 52.891658][ T6738] ? __brelse+0x84/0xa0 [[ 52.895843][ T6738] ? __ext4_new_inode+0x144/0x57c0 [ 52.901038][ T6738] ext4_getblk+0xad/0x520  OK [0[ 52.905380][ T6738] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 52.912480][ T6738] ? ext4_free_inode+0x17e0/0x17e0 m] [ 52.917609][ T6738] ext4_bread+0x7c/0x380 [ 52.922096][ T6738] ? ext4_getblk+0x520/0x520 [ 52.926686][ T6738] ? dqget+0xff0/0xff0 [ 52.930757][ T6738] ext4_append+0x153/0x360 [ 52.935171][ T6738] ext4_mkdir+0x5e0/0xdf0 Started Update U[ 52.939503][ T6738] ? ext4_rmdir+0xde0/0xde0 [ 52.945365][ T6738] ? security_inode_permission+0xc4/0xf0 [ 52.951004][ T6738] vfs_mkdir+0x419/0x690 TMP about System[ 52.955267][ T6738] do_mkdirat+0x21e/0x280 [ 52.960971][ T6738] ? __ia32_sys_mknod+0xb0/0xb0 Runlevel Change[ 52.965845][ T6738] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.973203][ T6738] ? do_syscall_64+0x21/0x7d0 s. [ 52.978359][ T6738] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.984694][ T6738] do_syscall_64+0xf6/0x7d0 [ 52.989212][ T6738] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.995103][ T6738] RIP: 0033:0x7fbcfc911687 [ 52.999520][ T6738] 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 [ 53.019227][ T6738] RSP: 002b:00007ffdea08e9f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.027644][ T6738] RAX: ffffffffffffffda RBX: 000055d42f84d985 RCX: 00007fbcfc911687 [ 53.035707][ T6738] RDX: 00007ffdea08e8c0 RSI: 00000000000001ed RDI: 000055d42f84d985 [ 53.043678][ T6738] RBP: 00007fbcfc911680 R08: 0000000000000100 R09: 0000000000000000 [ 53.051627][ T6738] R10: 000055d42f84d980 R11: 0000000000000246 R12: 00000000000001ed [ 53.059615][ T6738] R13: 00007ffdea08eb80 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.880169][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 56.889259][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 56.895703][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 56.903504][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.915425][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 56.921422][ T7] Call Trace: [ 56.924722][ T7] dump_stack+0x188/0x20d [ 56.929049][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 56.934663][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 56.939771][ T7] ? __kmalloc+0x62f/0x7a0 [ 56.944172][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.949608][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.955318][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 56.960601][ T7] ? ext4_ext_release+0x10/0x10 [ 56.965441][ T7] ? __down_timeout+0x2d0/0x2d0 [ 56.970279][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 56.975714][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 56.981153][ T7] ext4_map_blocks+0x4cb/0x1640 [ 56.986001][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.991175][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 56.996630][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.002175][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.008145][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.013600][ T7] ext4_writepages+0x1ab7/0x3400 [ 57.018540][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.024164][ T7] ? __lock_acquire+0x2224/0x48a0 [ 57.029439][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.035400][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.041363][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.047336][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.052978][ T7] ? do_writepages+0xfa/0x2a0 [ 57.057631][ T7] do_writepages+0xfa/0x2a0 [ 57.062119][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 57.067829][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.073271][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.078801][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.084766][ T7] ? lock_downgrade+0x840/0x840 [ 57.089807][ T7] __writeback_single_inode+0x12a/0x1410 [ 57.095427][ T7] ? _raw_spin_unlock+0x24/0x40 [ 57.100271][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.106246][ T7] writeback_sb_inodes+0x515/0xdd0 [ 57.111361][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 57.117243][ T7] __writeback_inodes_wb+0xc3/0x250 [ 57.122452][ T7] wb_writeback+0x910/0xd90 [ 57.126955][ T7] ? print_usage_bug+0x240/0x240 [ 57.131875][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.138292][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.144319][ T7] ? cpumask_next+0x3c/0x40 [ 57.148841][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.154195][ T7] wb_workfn+0xadf/0x10d0 [ 57.158522][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 57.164050][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.169538][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.175074][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.181050][ T7] process_one_work+0x965/0x16a0 [ 57.185975][ T7] ? lock_release+0x800/0x800 [ 57.190631][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.195995][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 57.201193][ T7] worker_thread+0x96/0xe10 [ 57.205679][ T7] ? process_one_work+0x16a0/0x16a0 [ 57.210886][ T7] kthread+0x388/0x470 [ 57.214942][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.220651][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.226355][ T7] ret_from_fork+0x24/0x30 [ 57.232735][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 57.241798][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.247701][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 57.255861][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.266016][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 57.271984][ T7] Call Trace: [ 57.275260][ T7] dump_stack+0x188/0x20d [ 57.279596][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 57.285216][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.290312][ T7] ? __kmalloc+0x62f/0x7a0 [ 57.294728][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.300278][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.306082][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 57.311352][ T7] ? ext4_ext_release+0x10/0x10 [ 57.316192][ T7] ? __down_timeout+0x2d0/0x2d0 [ 57.321058][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.326490][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.331944][ T7] ext4_map_blocks+0x4cb/0x1640 [ 57.336775][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.342034][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.347471][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.356039][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.362000][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.367447][ T7] ext4_writepages+0x1ab7/0x3400 [ 57.372383][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.377999][ T7] ? __lock_acquire+0x2224/0x48a0 [ 57.383013][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.388969][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.394926][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.400968][ T7] ? do_writepages+0xfa/0x2a0 [ 57.405617][ T7] do_writepages+0xfa/0x2a0 [ 57.410109][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 57.415899][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.421337][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.426864][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.432834][ T7] ? lock_downgrade+0x840/0x840 [ 57.437661][ T7] __writeback_single_inode+0x12a/0x1410 [ 57.443289][ T7] ? _raw_spin_unlock+0x24/0x40 [ 57.448188][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.454442][ T7] writeback_sb_inodes+0x515/0xdd0 [ 57.459564][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 57.465690][ T7] __writeback_inodes_wb+0xc3/0x250 [ 57.470876][ T7] wb_writeback+0x910/0xd90 [ 57.475374][ T7] ? print_usage_bug+0x240/0x240 [ 57.480317][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.486637][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.492507][ T7] ? cpumask_next+0x3c/0x40 [ 57.497003][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.502192][ T7] wb_workfn+0xadf/0x10d0 [ 57.506552][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 57.522029][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.527682][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.533224][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.539250][ T7] process_one_work+0x965/0x16a0 [ 57.544190][ T7] ? lock_release+0x800/0x800 [ 57.548856][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.554225][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 57.559155][ T7] worker_thread+0x96/0xe10 [ 57.563652][ T7] ? process_one_work+0x16a0/0x16a0 [ 57.568830][ T7] kthread+0x388/0x470 [ 57.572890][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.578598][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.584353][ T7] ret_from_fork+0x24/0x30 [ 57.591825][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 57.600948][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.606854][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 57.614655][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.624894][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 57.630876][ T7] Call Trace: [ 57.634173][ T7] dump_stack+0x188/0x20d [ 57.638512][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 57.644153][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.649267][ T7] ? __kmalloc+0x62f/0x7a0 [ 57.653702][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.659260][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.664988][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 57.670288][ T7] ? ext4_ext_release+0x10/0x10 [ 57.675159][ T7] ? __down_timeout+0x2d0/0x2d0 [ 57.680625][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.686257][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.691734][ T7] ext4_map_blocks+0x4cb/0x1640 [ 57.696582][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.701757][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.707201][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.712740][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.718698][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.724144][ T7] ext4_writepages+0x1ab7/0x3400 [ 57.729086][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.734698][ T7] ? __lock_acquire+0x2224/0x48a0 [ 57.739712][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.745680][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.751652][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.757262][ T7] ? do_writepages+0xfa/0x2a0 [ 57.761949][ T7] do_writepages+0xfa/0x2a0 [ 57.766448][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 57.772078][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.777527][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.783059][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.789020][ T7] ? lock_downgrade+0x840/0x840 [ 57.793858][ T7] __writeback_single_inode+0x12a/0x1410 [ 57.799484][ T7] ? _raw_spin_unlock+0x24/0x40 [ 57.804315][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.810308][ T7] writeback_sb_inodes+0x515/0xdd0 [ 57.815410][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 57.821294][ T7] __writeback_inodes_wb+0xc3/0x250 [ 57.826484][ T7] wb_writeback+0x910/0xd90 [ 57.830979][ T7] ? print_usage_bug+0x240/0x240 [ 57.835898][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.842206][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.848085][ T7] ? cpumask_next+0x3c/0x40 [ 57.852578][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.857760][ T7] wb_workfn+0xadf/0x10d0 [ 57.862074][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 57.867605][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.873046][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.878573][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.884724][ T7] process_one_work+0x965/0x16a0 [ 57.889646][ T7] ? lock_release+0x800/0x800 [ 57.894302][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.899653][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 57.904576][ T7] worker_thread+0x96/0xe10 [ 57.909066][ T7] ? process_one_work+0x16a0/0x16a0 [ 57.914244][ T7] kthread+0x388/0x470 [ 57.918290][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.923987][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.929691][ T7] ret_from_fork+0x24/0x30 [ 57.936026][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 57.945085][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.951075][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 57.958880][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.968947][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 57.974904][ T7] Call Trace: [ 57.978176][ T7] dump_stack+0x188/0x20d [ 57.982490][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 57.988189][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.993299][ T7] ? __kmalloc+0x62f/0x7a0 [ 57.997713][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.003261][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.008975][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 58.014260][ T7] ? ext4_ext_release+0x10/0x10 [ 58.019102][ T7] ? __down_timeout+0x2d0/0x2d0 [ 58.023931][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.029370][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.034814][ T7] ext4_map_blocks+0x4cb/0x1640 [ 58.039660][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.044851][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.050295][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.055839][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.061801][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.067243][ T7] ext4_writepages+0x1ab7/0x3400 [ 58.072262][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.077872][ T7] ? __lock_acquire+0x2224/0x48a0 [ 58.082887][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.088937][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.094908][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.100519][ T7] ? do_writepages+0xfa/0x2a0 [ 58.105184][ T7] do_writepages+0xfa/0x2a0 [ 58.109678][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 58.115292][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.120735][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.126260][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.132217][ T7] ? lock_downgrade+0x840/0x840 [ 58.137050][ T7] __writeback_single_inode+0x12a/0x1410 [ 58.142662][ T7] ? _raw_spin_unlock+0x24/0x40 [ 58.147489][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 58.153452][ T7] writeback_sb_inodes+0x515/0xdd0 [ 58.158554][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 58.164448][ T7] __writeback_inodes_wb+0xc3/0x250 [ 58.169642][ T7] wb_writeback+0x910/0xd90 [ 58.174130][ T7] ? print_usage_bug+0x240/0x240 [ 58.179064][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 58.185369][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 58.191247][ T7] ? cpumask_next+0x3c/0x40 [ 58.195739][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 58.200921][ T7] wb_workfn+0xadf/0x10d0 [ 58.205265][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 58.210786][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.216240][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.221777][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.227739][ T7] process_one_work+0x965/0x16a0 [ 58.232660][ T7] ? lock_release+0x800/0x800 [ 58.238357][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.243713][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 58.249068][ T7] worker_thread+0x96/0xe10 [ 58.253704][ T7] ? process_one_work+0x16a0/0x16a0 [ 58.258900][ T7] kthread+0x388/0x470 [ 58.262967][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.268676][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.274388][ T7] ret_from_fork+0x24/0x30 [ 58.287048][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 58.297545][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.303525][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 58.311417][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.321479][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 58.327454][ T7] Call Trace: [ 58.330744][ T7] dump_stack+0x188/0x20d [ 58.335079][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 58.340715][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.345822][ T7] ? __kmalloc+0x62f/0x7a0 [ 58.350234][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.355692][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.361394][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 58.366679][ T7] ? ext4_ext_release+0x10/0x10 [ 58.371541][ T7] ? __down_timeout+0x2d0/0x2d0 [ 58.376390][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.381836][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.387291][ T7] ext4_map_blocks+0x4cb/0x1640 [ 58.392129][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.397303][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.402746][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.408271][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.414230][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.419686][ T7] ext4_writepages+0x1ab7/0x3400 [ 58.424620][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.430233][ T7] ? __lock_acquire+0x2224/0x48a0 [ 58.435274][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.441259][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.447269][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.452980][ T7] ? do_writepages+0xfa/0x2a0 [ 58.457643][ T7] do_writepages+0xfa/0x2a0 [ 58.462142][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 58.467778][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.473262][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.478800][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.484771][ T7] ? lock_downgrade+0x840/0x840 [ 58.489616][ T7] __writeback_single_inode+0x12a/0x1410 [ 58.495264][ T7] ? _raw_spin_unlock+0x24/0x40 [ 58.500114][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 58.506110][ T7] writeback_sb_inodes+0x515/0xdd0 [ 58.511218][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 58.517114][ T7] __writeback_inodes_wb+0xc3/0x250 [ 58.522302][ T7] wb_writeback+0x910/0xd90 [ 58.526802][ T7] ? print_usage_bug+0x240/0x240 [ 58.531738][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 58.538050][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 58.543945][ T7] ? cpumask_next+0x3c/0x40 [ 58.548431][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 58.553616][ T7] wb_workfn+0xadf/0x10d0 [ 58.557933][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 58.563458][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.568902][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.574440][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.580406][ T7] process_one_work+0x965/0x16a0 Warning: Permanently added '10.128.0.38' (ECDSA) to the list of known hosts. [ 58.585332][ T7] ? lock_release+0x800/0x800 [ 58.589990][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.595865][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 58.600791][ T7] worker_thread+0x96/0xe10 [ 58.605287][ T7] ? process_one_work+0x16a0/0x16a0 [ 58.610467][ T7] kthread+0x388/0x470 [ 58.614518][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.620217][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.626094][ T7] ret_from_fork+0x24/0x30 [ 58.673454][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 58.683707][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.689701][ T7] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 58.698209][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.708297][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 58.714262][ T7] Call Trace: [ 58.717533][ T7] dump_stack+0x188/0x20d [ 58.721865][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 58.727476][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.732565][ T7] ? __kmalloc+0x62f/0x7a0 [ 58.737036][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.742500][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.748267][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 58.753675][ T7] ? ext4_ext_release+0x10/0x10 [ 58.758612][ T7] ? __down_timeout+0x2d0/0x2d0 [ 58.763447][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.768896][ T7] ext4_map_blocks+0x4cb/0x1640 [ 58.773756][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.778937][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.784468][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.790011][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.795971][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.801413][ T7] ext4_writepages+0x1ab7/0x3400 [ 58.806349][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.811963][ T7] ? __lock_acquire+0x2224/0x48a0 [ 58.816991][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.822955][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.828930][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.834646][ T7] ? do_writepages+0xfa/0x2a0 [ 58.839304][ T7] do_writepages+0xfa/0x2a0 [ 58.843811][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 58.849423][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.855675][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.861218][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.867180][ T7] ? lock_downgrade+0x840/0x840 [ 58.872032][ T7] __writeback_single_inode+0x12a/0x1410 [ 58.877657][ T7] ? _raw_spin_unlock+0x24/0x40 [ 58.882490][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 58.888491][ T7] writeback_sb_inodes+0x515/0xdd0 [ 58.893607][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 58.899506][ T7] __writeback_inodes_wb+0xc3/0x250 [ 58.904713][ T7] wb_writeback+0x910/0xd90 [ 58.909207][ T7] ? print_usage_bug+0x240/0x240 [ 58.914134][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 58.920444][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 58.926320][ T7] ? cpumask_next+0x3c/0x40 [ 58.930821][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 58.936018][ T7] wb_workfn+0xadf/0x10d0 [ 58.940334][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 58.945861][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 58.951309][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.956838][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.962831][ T7] process_one_work+0x965/0x16a0 [ 58.967780][ T7] ? lock_release+0x800/0x800 [ 58.972451][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.977893][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 58.982834][ T7] worker_thread+0x96/0xe10 [ 58.987332][ T7] ? process_one_work+0x16a0/0x16a0 [ 58.992526][ T7] kthread+0x388/0x470 [ 58.996588][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.002297][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.008013][ T7] ret_from_fork+0x24/0x30 [ 59.045761][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 59.055127][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.061265][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 59.071618][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.081699][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 59.087723][ T7] Call Trace: [ 59.091028][ T7] dump_stack+0x188/0x20d [ 59.095749][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 59.101489][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.106629][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.112104][ T7] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.118270][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 59.123578][ T7] ? ext4_ext_release+0x10/0x10 [ 59.128456][ T7] ? __down_timeout+0x2d0/0x2d0 [ 59.133314][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.138900][ T7] ext4_map_blocks+0x4cb/0x1640 [ 59.143766][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.149172][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 59.154658][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.160216][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.166207][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.171674][ T7] ext4_writepages+0x1ab7/0x3400 [ 59.176664][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.182306][ T7] ? __lock_acquire+0x2224/0x48a0 [ 59.187360][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.193345][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.198978][ T7] ? do_writepages+0xfa/0x2a0 [ 59.203652][ T7] do_writepages+0xfa/0x2a0 [ 59.208166][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 59.213825][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 59.219295][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.224844][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.230841][ T7] ? lock_downgrade+0x840/0x840 [ 59.235702][ T7] __writeback_single_inode+0x12a/0x1410 [ 59.241339][ T7] ? _raw_spin_unlock+0x24/0x40 [ 59.246199][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 59.252189][ T7] writeback_sb_inodes+0x515/0xdd0 [ 59.257318][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 59.263233][ T7] __writeback_inodes_wb+0xc3/0x250 [ 59.268439][ T7] wb_writeback+0x910/0xd90 [ 59.273209][ T7] ? print_usage_bug+0x240/0x240 [ 59.278176][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 59.284505][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 59.291359][ T7] ? cpumask_next+0x3c/0x40 [ 59.295913][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 59.301119][ T7] wb_workfn+0xadf/0x10d0 [ 59.305475][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 59.311003][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 59.316450][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.321989][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.327953][ T7] process_one_work+0x965/0x16a0 [ 59.332890][ T7] ? lock_release+0x800/0x800 [ 59.338600][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 59.343968][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 59.348902][ T7] worker_thread+0x96/0xe10 [ 59.353406][ T7] ? process_one_work+0x16a0/0x16a0 [ 59.358599][ T7] kthread+0x388/0x470 [ 59.362667][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.368375][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.374072][ T7] ret_from_fork+0x24/0x30 [ 59.418874][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 59.427901][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.433882][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 59.441670][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.451716][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 59.457672][ T7] Call Trace: [ 59.460954][ T7] dump_stack+0x188/0x20d [ 59.465305][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 59.470923][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.476023][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.481483][ T7] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.487682][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 59.492967][ T7] ? ext4_ext_release+0x10/0x10 [ 59.497863][ T7] ? __down_timeout+0x2d0/0x2d0 [ 59.502696][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.508142][ T7] ext4_map_blocks+0x4cb/0x1640 [ 59.512977][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.518187][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 59.523645][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.529186][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.535933][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.541370][ T7] ext4_writepages+0x1ab7/0x3400 [ 59.546305][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.551932][ T7] ? __lock_acquire+0x2224/0x48a0 [ 59.556955][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.562917][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.570173][ T7] ? do_writepages+0xfa/0x2a0 [ 59.575174][ T7] do_writepages+0xfa/0x2a0 [ 59.579655][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 59.585321][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 59.590781][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.596320][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.602279][ T7] ? lock_downgrade+0x840/0x840 [ 59.607116][ T7] __writeback_single_inode+0x12a/0x1410 [ 59.612748][ T7] ? _raw_spin_unlock+0x24/0x40 [ 59.617587][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 59.623562][ T7] writeback_sb_inodes+0x515/0xdd0 [ 59.628660][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 59.634561][ T7] __writeback_inodes_wb+0xc3/0x250 [ 59.639894][ T7] wb_writeback+0x910/0xd90 [ 59.644466][ T7] ? print_usage_bug+0x240/0x240 [ 59.649502][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 59.655838][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 59.661721][ T7] ? cpumask_next+0x3c/0x40 [ 59.666205][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 59.671399][ T7] wb_workfn+0xadf/0x10d0 [ 59.675747][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 59.681286][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 59.686799][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.692512][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.698486][ T7] process_one_work+0x965/0x16a0 [ 59.703426][ T7] ? lock_release+0x800/0x800 [ 59.708093][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 59.713459][ T7] ? rwlock_bug.part.0+0x90/0x90 2020/06/10 17:43:53 fuzzer started [ 59.718390][ T7] worker_thread+0x96/0xe10 [ 59.732171][ T7] ? process_one_work+0x16a0/0x16a0 [ 59.737345][ T7] kthread+0x388/0x470 [ 59.741394][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.747174][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.752885][ T7] ret_from_fork+0x24/0x30 2020/06/10 17:43:53 connecting to host at 10.128.0.26:43943 2020/06/10 17:43:53 checking machine... 2020/06/10 17:43:53 checking revisions... 2020/06/10 17:43:53 testing simple program... [ 60.214333][ T6809] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6809 [ 60.223453][ T6809] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.229440][ T6809] CPU: 0 PID: 6809 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 60.237345][ T6809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.248210][ T6809] Call Trace: [ 60.251506][ T6809] dump_stack+0x188/0x20d [ 60.255829][ T6809] debug_smp_processor_id.cold+0x88/0x9b [ 60.261441][ T6809] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.266562][ T6809] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.272007][ T6809] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.277722][ T6809] ext4_ext_map_blocks+0x2044/0x3410 [ 60.283065][ T6809] ? ext4_ext_release+0x10/0x10 [ 60.287955][ T6809] ? __down_timeout+0x2d0/0x2d0 [ 60.292796][ T6809] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.298254][ T6809] ext4_map_blocks+0x4cb/0x1640 [ 60.303099][ T6809] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.308619][ T6809] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.314144][ T6809] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.320113][ T6809] ? prandom_u32_state+0xe/0x170 [ 60.325037][ T6809] ? __brelse+0x84/0xa0 [ 60.329178][ T6809] ? __ext4_new_inode+0x144/0x57c0 [ 60.334295][ T6809] ext4_getblk+0xad/0x520 [ 60.338639][ T6809] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.344353][ T6809] ? ext4_free_inode+0x17e0/0x17e0 [ 60.349462][ T6809] ext4_bread+0x7c/0x380 [ 60.353692][ T6809] ? ext4_getblk+0x520/0x520 [ 60.358282][ T6809] ? dqget+0xff0/0xff0 [ 60.362349][ T6809] ext4_append+0x153/0x360 [ 60.368170][ T6809] ext4_mkdir+0x5e0/0xdf0 [ 60.372495][ T6809] ? ext4_rmdir+0xde0/0xde0 [ 60.376978][ T6809] ? security_inode_permission+0xc4/0xf0 [ 60.382599][ T6809] vfs_mkdir+0x419/0x690 [ 60.386818][ T6809] do_mkdirat+0x21e/0x280 [ 60.391127][ T6809] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.395973][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.403607][ T6809] ? do_syscall_64+0x21/0x7d0 [ 60.408270][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.415892][ T6809] do_syscall_64+0xf6/0x7d0 [ 60.420387][ T6809] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.426263][ T6809] RIP: 0033:0x4b02a0 [ 60.430156][ T6809] 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 [ 60.449982][ T6809] RSP: 002b:000000c0000e74b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.458400][ T6809] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 60.466347][ T6809] RDX: 00000000000001c0 RSI: 000000c0000270c0 RDI: ffffffffffffff9c [ 60.474304][ T6809] RBP: 000000c0000e7510 R08: 0000000000000000 R09: 0000000000000000 [ 60.482657][ T6809] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.490610][ T6809] R13: 0000000000000087 R14: 0000000000000086 R15: 0000000000000100 [ 60.515344][ T6827] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6827 [ 60.524809][ T6827] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.530775][ T6827] CPU: 0 PID: 6827 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.539011][ T6827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.549049][ T6827] Call Trace: [ 60.552338][ T6827] dump_stack+0x188/0x20d [ 60.556748][ T6827] debug_smp_processor_id.cold+0x88/0x9b [ 60.562382][ T6827] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.567480][ T6827] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.573091][ T6827] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.578790][ T6827] ext4_ext_map_blocks+0x2044/0x3410 [ 60.584079][ T6827] ? ext4_ext_release+0x10/0x10 [ 60.588915][ T6827] ? __down_timeout+0x2d0/0x2d0 [ 60.593743][ T6827] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.599204][ T6827] ext4_map_blocks+0x4cb/0x1640 [ 60.604052][ T6827] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.609233][ T6827] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.614768][ T6827] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.620751][ T6827] ? prandom_u32_state+0xe/0x170 [ 60.625687][ T6827] ? __brelse+0x84/0xa0 [ 60.629825][ T6827] ? __ext4_new_inode+0x144/0x57c0 [ 60.634929][ T6827] ext4_getblk+0xad/0x520 [ 60.639247][ T6827] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.644954][ T6827] ? ext4_free_inode+0x17e0/0x17e0 [ 60.650044][ T6827] ext4_bread+0x7c/0x380 [ 60.654264][ T6827] ? ext4_getblk+0x520/0x520 [ 60.658848][ T6827] ? dqget+0xff0/0xff0 [ 60.662903][ T6827] ext4_append+0x153/0x360 [ 60.667299][ T6827] ext4_mkdir+0x5e0/0xdf0 [ 60.671630][ T6827] ? ext4_rmdir+0xde0/0xde0 [ 60.676145][ T6827] ? security_inode_permission+0xc4/0xf0 [ 60.681761][ T6827] vfs_mkdir+0x419/0x690 [ 60.685980][ T6827] do_mkdirat+0x21e/0x280 [ 60.690288][ T6827] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.695136][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.701099][ T6827] ? do_syscall_64+0x21/0x7d0 [ 60.706276][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.712237][ T6827] do_syscall_64+0xf6/0x7d0 [ 60.716723][ T6827] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.722606][ T6827] RIP: 0033:0x45bee7 [ 60.726481][ T6827] 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 [ 60.746136][ T6827] RSP: 002b:00007ffff244f518 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.754541][ T6827] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.762513][ T6827] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffff244f6f0 [ 60.770467][ T6827] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002d00 [ 60.778424][ T6827] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.786377][ T6827] R13: 00007ffff244f6f0 R14: 8421084210842109 R15: 00007ffff244f6fc [ 60.866572][ T6828] IPVS: ftp: loaded support on port[0] = 21 2020/06/10 17:43:54 building call list... [ 61.229263][ T7] tipc: TX() has been purged, node left! [ 62.777892][ T6811] can: request_module (can-proto-0) failed. executing program [ 63.304015][ T6811] can: request_module (can-proto-0) failed. [ 63.316164][ T6811] can: request_module (can-proto-0) failed.