[ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ 54.246713][ T6728] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6728 [ 54.256165][ T6728] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 54.262058][ T6728] CPU: 0 PID: 6728 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 54.270285][ T6728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.280355][ T6728] Call Trace: [ 54.283637][ T6728] dump_stack+0x188/0x20d [ 54.287950][ T6728] debug_smp_processor_id.cold+0x88/0x9b [ 54.293576][ T6728] ext4_mb_new_blocks+0xa77/0x3b30 [ 54.298700][ T6728] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.304141][ T6728] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.309854][ T6728] ext4_ext_map_blocks+0x2044/0x3410 [ 54.315118][ T6728] ? ext4_ext_release+0x10/0x10 [ 54.320003][ T6728] ? __down_timeout+0x2d0/0x2d0 [ 54.324869][ T6728] ? ext4_es_lookup_extent+0x41d/0xd30 [ 54.330416][ T6728] ext4_map_blocks+0x4cb/0x1640 [ 54.335268][ T6728] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.340449][ T6728] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.346008][ T6728] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.351980][ T6728] ? prandom_u32_state+0xe/0x170 [ 54.356909][ T6728] ? __brelse+0x84/0xa0 [ 54.361153][ T6728] ? __ext4_new_inode+0x144/0x57c0 [ 54.366267][ T6728] ext4_getblk+0xad/0x520 [ 54.370604][ T6728] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 54.376460][ T6728] ? ext4_free_inode+0x17e0/0x17e0 [ 54.381578][ T6728] ext4_bread+0x7c/0x380 [ 54.385806][ T6728] ? ext4_getblk+0x520/0x520 [ 54.390380][ T6728] ? dqget+0xff0/0xff0 [ 54.394504][ T6728] ext4_append+0x153/0x360 [ 54.398927][ T6728] ext4_mkdir+0x5e0/0xdf0 [ 54.403258][ T6728] ? ext4_rmdir+0xde0/0xde0 [ 54.407753][ T6728] ? security_inode_permission+0xc4/0xf0 [ 54.413636][ T6728] vfs_mkdir+0x419/0x690 [ 54.417873][ T6728] do_mkdirat+0x21e/0x280 [ 54.422210][ T6728] ? __ia32_sys_mknod+0xb0/0xb0 [ 54.427043][ T6728] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.433006][ T6728] ? do_syscall_64+0x21/0x7d0 [ 54.437695][ T6728] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.443656][ T6728] do_syscall_64+0xf6/0x7d0 [ 54.448147][ T6728] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 54.454015][ T6728] RIP: 0033:0x7f44c8d60687 [ 54.458411][ T6728] 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 [ 54.477991][ T6728] RSP: 002b:00007ffcd4329178 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.486378][ T6728] RAX: ffffffffffffffda RBX: 000055e20febe985 RCX: 00007f44c8d60687 [ 54.494345][ T6728] RDX: 00007ffcd4329040 RSI: 00000000000001ed RDI: 000055e20febe985 [ 54.502308][ T6728] RBP: 00007f44c8d60680 R08: 0000000000000100 R09: 0000000000000000 [ 54.510270][ T6728] R10: 000055e20febe980 R11: 0000000000000246 R12: 00000000000001ed [ 54.518335][ T6728] R13: 00007ffcd4329300 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.105460][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 57.114519][ T21] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.120547][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 57.128436][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.138499][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 57.144455][ T21] Call Trace: [ 57.147729][ T21] dump_stack+0x188/0x20d [ 57.152042][ T21] debug_smp_processor_id.cold+0x88/0x9b [ 57.157663][ T21] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.162750][ T21] ? __kmalloc+0x62f/0x7a0 [ 57.167149][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.172584][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.178528][ T21] ext4_ext_map_blocks+0x2044/0x3410 [ 57.183828][ T21] ? ext4_ext_release+0x10/0x10 [ 57.188673][ T21] ? __down_timeout+0x2d0/0x2d0 [ 57.193505][ T21] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.198965][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.204420][ T21] ext4_map_blocks+0x4cb/0x1640 [ 57.209470][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.214657][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.220108][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.225645][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.231610][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.237053][ T21] ext4_writepages+0x1ab7/0x3400 [ 57.242210][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.247829][ T21] ? __lock_acquire+0x2224/0x48a0 [ 57.252859][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.258823][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.265493][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.271193][ T21] ? do_writepages+0xfa/0x2a0 [ 57.275856][ T21] do_writepages+0xfa/0x2a0 [ 57.280527][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 57.286150][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.291705][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.297253][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.303217][ T21] ? lock_downgrade+0x840/0x840 [ 57.308057][ T21] __writeback_single_inode+0x12a/0x1410 [ 57.313673][ T21] ? _raw_spin_unlock+0x24/0x40 [ 57.318501][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.324458][ T21] writeback_sb_inodes+0x515/0xdd0 [ 57.329553][ T21] ? __writeback_single_inode+0x1410/0x1410 [ 57.335433][ T21] __writeback_inodes_wb+0xc3/0x250 [ 57.340623][ T21] wb_writeback+0x910/0xd90 [ 57.345120][ T21] ? print_usage_bug+0x240/0x240 [ 57.350050][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.356370][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.362253][ T21] ? cpumask_next+0x3c/0x40 [ 57.366746][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.371975][ T21] wb_workfn+0xadf/0x10d0 [ 57.376291][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 57.382002][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.387451][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.392973][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.399021][ T21] process_one_work+0x965/0x16a0 [ 57.403964][ T21] ? lock_release+0x800/0x800 [ 57.408633][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.413998][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 57.418938][ T21] worker_thread+0x96/0xe10 [ 57.423979][ T21] ? process_one_work+0x16a0/0x16a0 [ 57.429156][ T21] kthread+0x388/0x470 [ 57.433287][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.439428][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.445145][ T21] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.37' (ECDSA) to the list of known hosts. 2020/06/15 13:47:01 fuzzer started 2020/06/15 13:47:01 connecting to host at 10.128.0.26:33499 2020/06/15 13:47:01 checking machine... 2020/06/15 13:47:01 checking revisions... 2020/06/15 13:47:01 testing simple program... [ 60.101595][ T6784] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6784 [ 60.110960][ T6784] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.117405][ T6784] CPU: 1 PID: 6784 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 60.125310][ T6784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.135352][ T6784] Call Trace: [ 60.138635][ T6784] dump_stack+0x188/0x20d [ 60.143067][ T6784] debug_smp_processor_id.cold+0x88/0x9b [ 60.148882][ T6784] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.153985][ T6784] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.159426][ T6784] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.165152][ T6784] ext4_ext_map_blocks+0x2044/0x3410 [ 60.170418][ T6784] ? ext4_ext_release+0x10/0x10 [ 60.175474][ T6784] ? __down_timeout+0x2d0/0x2d0 [ 60.180336][ T6784] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.185791][ T6784] ext4_map_blocks+0x4cb/0x1640 [ 60.190657][ T6784] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.195867][ T6784] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.201392][ T6784] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.207511][ T6784] ? prandom_u32_state+0xe/0x170 [ 60.212452][ T6784] ? __brelse+0x84/0xa0 [ 60.216620][ T6784] ? __ext4_new_inode+0x144/0x57c0 [ 60.221732][ T6784] ext4_getblk+0xad/0x520 [ 60.226044][ T6784] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.231770][ T6784] ? ext4_free_inode+0x17e0/0x17e0 [ 60.236876][ T6784] ext4_bread+0x7c/0x380 [ 60.241108][ T6784] ? ext4_getblk+0x520/0x520 [ 60.245677][ T6784] ? dqget+0xff0/0xff0 [ 60.249739][ T6784] ext4_append+0x153/0x360 [ 60.254136][ T6784] ext4_mkdir+0x5e0/0xdf0 [ 60.258477][ T6784] ? ext4_rmdir+0xde0/0xde0 [ 60.262968][ T6784] ? security_inode_permission+0xc4/0xf0 [ 60.268603][ T6784] vfs_mkdir+0x419/0x690 [ 60.272860][ T6784] do_mkdirat+0x21e/0x280 [ 60.277307][ T6784] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.282397][ T6784] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.288551][ T6784] ? do_syscall_64+0x21/0x7d0 [ 60.293209][ T6784] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.299197][ T6784] do_syscall_64+0xf6/0x7d0 [ 60.303687][ T6784] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.309573][ T6784] RIP: 0033:0x4b02a0 [ 60.313447][ T6784] 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 [ 60.333647][ T6784] RSP: 002b:000000c0000e54b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.342050][ T6784] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 60.350523][ T6784] RDX: 00000000000001c0 RSI: 000000c00009ef20 RDI: ffffffffffffff9c [ 60.358478][ T6784] RBP: 000000c0000e5510 R08: 0000000000000000 R09: 0000000000000000 [ 60.366567][ T6784] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.374525][ T6784] R13: 000000000000007a R14: 0000000000000079 R15: 0000000000000100 [ 60.389565][ T6799] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6799 [ 60.399497][ T6799] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.405499][ T6799] CPU: 1 PID: 6799 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.413964][ T6799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.424034][ T6799] Call Trace: [ 60.427330][ T6799] dump_stack+0x188/0x20d [ 60.431990][ T6799] debug_smp_processor_id.cold+0x88/0x9b [ 60.437603][ T6799] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.442729][ T6799] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.448180][ T6799] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.453886][ T6799] ext4_ext_map_blocks+0x2044/0x3410 [ 60.459393][ T6799] ? ext4_ext_release+0x10/0x10 [ 60.464293][ T6799] ? __down_timeout+0x2d0/0x2d0 [ 60.469126][ T6799] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.474851][ T6799] ext4_map_blocks+0x4cb/0x1640 [ 60.479685][ T6799] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.484877][ T6799] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.490416][ T6799] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.496381][ T6799] ? prandom_u32_state+0xe/0x170 [ 60.501295][ T6799] ? __brelse+0x84/0xa0 [ 60.505442][ T6799] ? __ext4_new_inode+0x144/0x57c0 [ 60.510533][ T6799] ext4_getblk+0xad/0x520 [ 60.514842][ T6799] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.520680][ T6799] ? ext4_free_inode+0x17e0/0x17e0 [ 60.525796][ T6799] ext4_bread+0x7c/0x380 [ 60.530024][ T6799] ? ext4_getblk+0x520/0x520 [ 60.534597][ T6799] ? dqget+0xff0/0xff0 [ 60.538681][ T6799] ext4_append+0x153/0x360 [ 60.543122][ T6799] ext4_mkdir+0x5e0/0xdf0 [ 60.547657][ T6799] ? ext4_rmdir+0xde0/0xde0 [ 60.552259][ T6799] ? security_inode_permission+0xc4/0xf0 [ 60.557882][ T6799] vfs_mkdir+0x419/0x690 [ 60.562131][ T6799] do_mkdirat+0x21e/0x280 [ 60.566626][ T6799] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.571459][ T6799] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.577440][ T6799] ? do_syscall_64+0x21/0x7d0 [ 60.582256][ T6799] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.588235][ T6799] do_syscall_64+0xf6/0x7d0 [ 60.592727][ T6799] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.598597][ T6799] RIP: 0033:0x45bed7 [ 60.602605][ T6799] 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 [ 60.622458][ T6799] RSP: 002b:00007ffc813b26a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.630853][ T6799] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bed7 [ 60.638956][ T6799] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc813b2880 [ 60.647050][ T6799] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002d40 [ 60.656153][ T6799] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.664126][ T6799] R13: 00007ffc813b2880 R14: 8421084210842109 R15: 00007ffc813b288c [ 60.750889][ T6800] IPVS: ftp: loaded support on port[0] = 21 [ 60.788090][ T6800] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6800 [ 60.797551][ T6800] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.803461][ T6800] CPU: 0 PID: 6800 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.811765][ T6800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.821802][ T6800] Call Trace: [ 60.825100][ T6800] dump_stack+0x188/0x20d [ 60.829445][ T6800] debug_smp_processor_id.cold+0x88/0x9b [ 60.835078][ T6800] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.840196][ T6800] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.845648][ T6800] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.851392][ T6800] ext4_ext_map_blocks+0x2044/0x3410 [ 60.856660][ T6800] ? ext4_ext_release+0x10/0x10 [ 60.861510][ T6800] ? __down_timeout+0x2d0/0x2d0 [ 60.866347][ T6800] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.871802][ T6800] ext4_map_blocks+0x4cb/0x1640 [ 60.876651][ T6800] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.881895][ T6800] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.887465][ T6800] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.893444][ T6800] ? prandom_u32_state+0xe/0x170 [ 60.898367][ T6800] ? __brelse+0x84/0xa0 [ 60.902503][ T6800] ? __ext4_new_inode+0x144/0x57c0 [ 60.907692][ T6800] ext4_getblk+0xad/0x520 [ 60.912031][ T6800] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.917741][ T6800] ? ext4_free_inode+0x17e0/0x17e0 [ 60.922835][ T6800] ext4_bread+0x7c/0x380 [ 60.927063][ T6800] ? ext4_getblk+0x520/0x520 [ 60.931645][ T6800] ? dqget+0xff0/0xff0 [ 60.935695][ T6800] ext4_append+0x153/0x360 [ 60.940106][ T6800] ext4_mkdir+0x5e0/0xdf0 [ 60.944424][ T6800] ? ext4_rmdir+0xde0/0xde0 [ 60.948957][ T6800] ? security_inode_permission+0xc4/0xf0 [ 60.954570][ T6800] vfs_mkdir+0x419/0x690 [ 60.958793][ T6800] do_mkdirat+0x21e/0x280 [ 60.963100][ T6800] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.967929][ T6800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.973902][ T6800] ? do_syscall_64+0x21/0x7d0 [ 60.978557][ T6800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.984540][ T6800] do_syscall_64+0xf6/0x7d0 [ 60.989057][ T6800] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.994952][ T6800] RIP: 0033:0x45bed7 [ 60.998848][ T6800] 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 [ 61.018430][ T6800] RSP: 002b:00007ffc813b2598 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 61.026838][ T6800] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bed7 [ 61.034801][ T6800] RDX: 00007ffc813b25e3 RSI: 00000000000001ff RDI: 00007ffc813b25e0 [ 61.042753][ T6800] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.050710][ T6800] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185c0 [ 61.058672][ T6800] R13: 00007ffc813b25d0 R14: 0000000000000000 R15: 00007ffc813b25e0 [ 61.112469][ T6800] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6800 [ 61.122574][ T6800] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.128567][ T6800] CPU: 1 PID: 6800 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.136811][ T6800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.147005][ T6800] Call Trace: [ 61.150323][ T6800] dump_stack+0x188/0x20d [ 61.154675][ T6800] debug_smp_processor_id.cold+0x88/0x9b [ 61.160320][ T6800] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.165456][ T6800] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.170938][ T6800] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.176683][ T6800] ext4_ext_map_blocks+0x2044/0x3410 [ 61.181969][ T6800] ? ext4_ext_release+0x10/0x10 [ 61.186817][ T6800] ? __down_timeout+0x2d0/0x2d0 [ 61.191664][ T6800] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.197128][ T6800] ext4_map_blocks+0x4cb/0x1640 [ 61.202076][ T6800] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.207281][ T6800] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.212830][ T6800] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.218804][ T6800] ? prandom_u32_state+0xe/0x170 [ 61.223863][ T6800] ? __brelse+0x84/0xa0 [ 61.228018][ T6800] ? __ext4_new_inode+0x144/0x57c0 [ 61.233184][ T6800] ext4_getblk+0xad/0x520 [ 61.237514][ T6800] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.243243][ T6800] ? ext4_free_inode+0x17e0/0x17e0 [ 61.248342][ T6800] ext4_bread+0x7c/0x380 [ 61.252564][ T6800] ? ext4_getblk+0x520/0x520 [ 61.257263][ T6800] ? dqget+0xff0/0xff0 [ 61.261342][ T6800] ext4_append+0x153/0x360 [ 61.265757][ T6800] ext4_mkdir+0x5e0/0xdf0 [ 61.270346][ T6800] ? ext4_rmdir+0xde0/0xde0 [ 61.274846][ T6800] ? security_inode_permission+0xc4/0xf0 [ 61.280480][ T6800] vfs_mkdir+0x419/0x690 [ 61.284706][ T6800] do_mkdirat+0x21e/0x280 [ 61.289016][ T6800] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.293844][ T6800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.299826][ T6800] ? do_syscall_64+0x21/0x7d0 [ 61.304484][ T6800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.310445][ T6800] do_syscall_64+0xf6/0x7d0 [ 61.314970][ T6800] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.320844][ T6800] RIP: 0033:0x45bed7 [ 61.324727][ T6800] 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 [ 61.344416][ T6800] RSP: 002b:00007ffc813b2598 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 61.352927][ T6800] RAX: ffffffffffffffda RBX: 000000000000eeb7 RCX: 000000000045bed7 2020/06/15 13:47:03 building call list... [ 61.360896][ T6800] RDX: 00007ffc813b25e3 RSI: 00000000000001ff RDI: 00007ffc813b25e0 [ 61.368868][ T6800] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.376823][ T6800] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 61.384789][ T6800] R13: 00007ffc813b25d0 R14: 000000000000eea9 R15: 00007ffc813b25e0 [ 61.674446][ T21] tipc: TX() has been purged, node left! executing program [ 62.960986][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 62.970292][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.976276][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.984159][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.994235][ T1155] Call Trace: [ 62.997701][ T1155] dump_stack+0x188/0x20d [ 63.002032][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 63.007657][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.012761][ T1155] ? __kmalloc+0x62f/0x7a0 [ 63.017184][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.022635][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.028355][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 63.033654][ T1155] ? ext4_ext_release+0x10/0x10 [ 63.038522][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 63.043364][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.048823][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 63.053674][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.058865][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 63.064323][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.069863][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.075837][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.081303][ T1155] ext4_writepages+0x1ab7/0x3400 [ 63.086237][ T1155] ? mark_lock+0x30/0xdd0 [ 63.090577][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.096233][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.102401][ T1155] ? do_writepages+0xfa/0x2a0 [ 63.107084][ T1155] do_writepages+0xfa/0x2a0 [ 63.111594][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 63.117225][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 63.122246][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 63.127437][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 63.132284][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.137997][ T1155] ? collapse_file+0x3575/0x4300 [ 63.142924][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.148991][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.154184][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.160188][ T1155] collapse_file+0x357f/0x4300 [ 63.164972][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 63.171397][ T1155] ? khugepaged+0x24fa/0x3f80 [ 63.176180][ T1155] khugepaged+0x3049/0x3f80 [ 63.180727][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.186386][ T1155] ? lock_downgrade+0x840/0x840 [ 63.191232][ T1155] ? finish_wait+0x260/0x260 [ 63.195818][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.201614][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.207602][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 63.212619][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.218265][ T1155] kthread+0x388/0x470 [ 63.222333][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.228482][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.234236][ T1155] ret_from_fork+0x24/0x30 [ 63.377833][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 63.386951][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.392844][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.400722][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.410783][ T1155] Call Trace: [ 63.414182][ T1155] dump_stack+0x188/0x20d [ 63.418516][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 63.424148][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.429269][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.434813][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.440968][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 63.446256][ T1155] ? ext4_ext_release+0x10/0x10 [ 63.451207][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 63.456133][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.461571][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 63.466401][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.471574][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 63.477010][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.482543][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.488507][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.493957][ T1155] ext4_writepages+0x1ab7/0x3400 [ 63.498869][ T1155] ? mark_lock+0x30/0xdd0 [ 63.503189][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.509508][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.515379][ T1155] ? do_writepages+0xfa/0x2a0 [ 63.520030][ T1155] do_writepages+0xfa/0x2a0 [ 63.524525][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 63.530242][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 63.535253][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 63.540444][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 63.545277][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.550976][ T1155] ? collapse_file+0x3575/0x4300 [ 63.555889][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.561947][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.567140][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.573139][ T1155] collapse_file+0x357f/0x4300 [ 63.577895][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 63.583322][ T1155] ? khugepaged+0x24fa/0x3f80 [ 63.588013][ T1155] khugepaged+0x3049/0x3f80 [ 63.592521][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.598158][ T1155] ? lock_downgrade+0x840/0x840 [ 63.602986][ T1155] ? finish_wait+0x260/0x260 [ 63.607588][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.613379][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.619361][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 63.624367][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.629987][ T1155] kthread+0x388/0x470 [ 63.634045][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.639746][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.645539][ T1155] ret_from_fork+0x24/0x30 [ 63.678728][ T6781] can: request_module (can-proto-0) failed. [ 63.714463][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 63.723546][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.729543][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.737518][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.747557][ T1155] Call Trace: [ 63.750838][ T1155] dump_stack+0x188/0x20d [ 63.755151][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 63.760836][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.765949][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.771385][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.777517][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 63.782869][ T1155] ? ext4_ext_release+0x10/0x10 [ 63.787707][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 63.792543][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.797981][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 63.802823][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.808181][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 63.813706][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.819230][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.825195][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.830630][ T1155] ext4_writepages+0x1ab7/0x3400 [ 63.835548][ T1155] ? mark_lock+0x30/0xdd0 [ 63.840922][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.846652][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.852280][ T1155] ? do_writepages+0xfa/0x2a0 [ 63.857217][ T1155] do_writepages+0xfa/0x2a0 [ 63.861720][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 63.867438][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 63.872449][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 63.877804][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 63.882642][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.903318][ T1155] ? collapse_file+0x3575/0x4300 [ 63.908247][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.914331][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.919528][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.925523][ T1155] collapse_file+0x357f/0x4300 [ 63.930293][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 63.935647][ T1155] ? khugepaged+0x24fa/0x3f80 [ 63.940334][ T1155] khugepaged+0x3049/0x3f80 [ 63.944833][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.950456][ T1155] ? lock_downgrade+0x840/0x840 [ 63.955294][ T1155] ? finish_wait+0x260/0x260 [ 63.959872][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.965660][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.971626][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 63.976632][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.982246][ T1155] kthread+0x388/0x470 [ 63.986312][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.992019][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.997742][ T1155] ret_from_fork+0x24/0x30 [ 64.308928][ T6781] can: request_module (can-proto-0) failed. [ 64.320584][ T6781] can: request_module (can-proto-0) failed.