[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ 53.288876][ T6728] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6728 [ 53.298582][ T6728] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 53.304463][ T6728] CPU: 1 PID: 6728 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 53.312676][ T6728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.322726][ T6728] Call Trace: [ 53.326014][ T6728] dump_stack+0x188/0x20d [ 53.330337][ T6728] debug_smp_processor_id.cold+0x88/0x9b [ 53.335945][ T6728] ext4_mb_new_blocks+0xa77/0x3b30 [ 53.341046][ T6728] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.346489][ T6728] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.352193][ T6728] ext4_ext_map_blocks+0x2044/0x3410 [ 53.357470][ T6728] ? ext4_ext_release+0x10/0x10 [ 53.362330][ T6728] ? __down_timeout+0x2d0/0x2d0 [ 53.367292][ T6728] ? ext4_es_lookup_extent+0x41d/0xd30 [ 53.372734][ T6728] ext4_map_blocks+0x4cb/0x1640 [ 53.377578][ T6728] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.382766][ T6728] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.388288][ T6728] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.394254][ T6728] ? prandom_u32_state+0xe/0x170 [ 53.399169][ T6728] ? __brelse+0x84/0xa0 [ 53.403300][ T6728] ? __ext4_new_inode+0x144/0x57c0 [ 53.408403][ T6728] ext4_getblk+0xad/0x520 [ 53.412731][ T6728] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.418616][ T6728] ? ext4_free_inode+0x17e0/0x17e0 [ 53.423705][ T6728] ext4_bread+0x7c/0x380 [ 53.427927][ T6728] ? ext4_getblk+0x520/0x520 [ 53.432492][ T6728] ? dqget+0xff0/0xff0 [ 53.436542][ T6728] ext4_append+0x153/0x360 [ 53.440936][ T6728] ext4_mkdir+0x5e0/0xdf0 [ 53.445293][ T6728] ? ext4_rmdir+0xde0/0xde0 [ 53.449789][ T6728] ? security_inode_permission+0xc4/0xf0 [ 53.455435][ T6728] vfs_mkdir+0x419/0x690 [ 53.459660][ T6728] do_mkdirat+0x21e/0x280 [ 53.463970][ T6728] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.468797][ T6728] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.474752][ T6728] ? do_syscall_64+0x21/0x7d0 [ 53.479407][ T6728] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.485368][ T6728] do_syscall_64+0xf6/0x7d0 [ 53.490461][ T6728] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.496328][ T6728] RIP: 0033:0x7fee0f349687 [ 53.500721][ 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 [ 53.520319][ T6728] RSP: 002b:00007ffd93a52ca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.528729][ T6728] RAX: ffffffffffffffda RBX: 000055ed7d841985 RCX: 00007fee0f349687 [ 53.536675][ T6728] RDX: 00007ffd93a52b70 RSI: 00000000000001ed RDI: 000055ed7d841985 [ 53.544637][ T6728] RBP: 00007fee0f349680 R08: 0000000000000100 R09: 0000000000000000 [ 53.552586][ T6728] R10: 000055ed7d841980 R11: 0000000000000246 R12: 00000000000001ed [ 53.560543][ T6728] R13: 00007ffd93a52e30 R14: 0000000000000000 R15: 0000000000000000 Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.305924][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 56.314879][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 56.320848][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 56.328822][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.338893][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 56.344855][ T7] Call Trace: [ 56.348127][ T7] dump_stack+0x188/0x20d [ 56.352438][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 56.358045][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 56.363131][ T7] ? __kmalloc+0x62f/0x7a0 [ 56.367547][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.372990][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.378712][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 56.383978][ T7] ? ext4_ext_release+0x10/0x10 [ 56.388828][ T7] ? __down_timeout+0x2d0/0x2d0 [ 56.393662][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 56.399095][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 56.404531][ T7] ext4_map_blocks+0x4cb/0x1640 [ 56.409361][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.414534][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 56.419973][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.425495][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.431450][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.436886][ T7] ext4_writepages+0x1ab7/0x3400 [ 56.441811][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.447509][ T7] ? __lock_acquire+0x2224/0x48a0 [ 56.452520][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.458477][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.464438][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.470065][ T7] ? do_writepages+0xfa/0x2a0 [ 56.474727][ T7] do_writepages+0xfa/0x2a0 [ 56.479212][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 56.484818][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 56.490270][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.495879][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.501835][ T7] ? lock_downgrade+0x840/0x840 [ 56.506703][ T7] __writeback_single_inode+0x12a/0x1410 [ 56.512314][ T7] ? _raw_spin_unlock+0x24/0x40 [ 56.517163][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.523130][ T7] writeback_sb_inodes+0x515/0xdd0 [ 56.528225][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 56.534135][ T7] __writeback_inodes_wb+0xc3/0x250 [ 56.539331][ T7] wb_writeback+0x910/0xd90 [ 56.543990][ T7] ? print_usage_bug+0x240/0x240 [ 56.548913][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.555246][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.561134][ T7] ? cpumask_next+0x3c/0x40 [ 56.565637][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.570829][ T7] wb_workfn+0xadf/0x10d0 [ 56.575139][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 56.580670][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 56.586119][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.591640][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.597598][ T7] process_one_work+0x965/0x16a0 [ 56.602527][ T7] ? lock_release+0x800/0x800 [ 56.607193][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.612559][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 56.617487][ T7] worker_thread+0x96/0xe10 [ 56.621994][ T7] ? process_one_work+0x16a0/0x16a0 [ 56.627181][ T7] kthread+0x388/0x470 [ 56.631233][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.636927][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.642624][ T7] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.48' (ECDSA) to the list of known hosts. 2020/06/14 10:21:15 fuzzer started 2020/06/14 10:21:15 connecting to host at 10.128.0.26:34895 2020/06/14 10:21:15 checking machine... 2020/06/14 10:21:15 checking revisions... 2020/06/14 10:21:15 testing simple program... [ 58.587403][ T6815] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6815 [ 58.596601][ T6815] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.602500][ T6815] CPU: 0 PID: 6815 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.610372][ T6815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.620411][ T6815] Call Trace: [ 58.623699][ T6815] dump_stack+0x188/0x20d [ 58.628011][ T6815] debug_smp_processor_id.cold+0x88/0x9b [ 58.633621][ T6815] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.638717][ T6815] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.644161][ T6815] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.649861][ T6815] ext4_ext_map_blocks+0x2044/0x3410 [ 58.655128][ T6815] ? ext4_ext_release+0x10/0x10 [ 58.659979][ T6815] ? __down_timeout+0x2d0/0x2d0 [ 58.664807][ T6815] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.670246][ T6815] ext4_map_blocks+0x4cb/0x1640 [ 58.675088][ T6815] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.680282][ T6815] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.685823][ T6815] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.691807][ T6815] ? prandom_u32_state+0xe/0x170 [ 58.696722][ T6815] ? __brelse+0x84/0xa0 [ 58.700855][ T6815] ? __ext4_new_inode+0x144/0x57c0 [ 58.705960][ T6815] ext4_getblk+0xad/0x520 [ 58.710310][ T6815] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.716043][ T6815] ? ext4_free_inode+0x17e0/0x17e0 [ 58.721421][ T6815] ext4_bread+0x7c/0x380 [ 58.726287][ T6815] ? ext4_getblk+0x520/0x520 [ 58.730967][ T6815] ? dqget+0xff0/0xff0 [ 58.735044][ T6815] ext4_append+0x153/0x360 [ 58.739464][ T6815] ext4_mkdir+0x5e0/0xdf0 [ 58.743831][ T6815] ? ext4_rmdir+0xde0/0xde0 [ 58.748350][ T6815] ? security_inode_permission+0xc4/0xf0 [ 58.753991][ T6815] vfs_mkdir+0x419/0x690 [ 58.758244][ T6815] do_mkdirat+0x21e/0x280 [ 58.762581][ T6815] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.767432][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.773418][ T6815] ? do_syscall_64+0x21/0x7d0 [ 58.778096][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.784075][ T6815] do_syscall_64+0xf6/0x7d0 [ 58.788562][ T6815] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.794438][ T6815] RIP: 0033:0x4b02a0 [ 58.798310][ T6815] 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 [ 58.817999][ T6815] RSP: 002b:000000c0000d34b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.826524][ T6815] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 58.834479][ T6815] RDX: 00000000000001c0 RSI: 000000c0000d8900 RDI: ffffffffffffff9c [ 58.842431][ T6815] RBP: 000000c0000d3510 R08: 0000000000000000 R09: 0000000000000000 [ 58.850380][ T6815] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.858339][ T6815] R13: 0000000000000049 R14: 0000000000000048 R15: 0000000000000100 [ 58.876578][ T6820] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6820 [ 58.886064][ T6820] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.891938][ T6820] CPU: 0 PID: 6820 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.900144][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.910194][ T6820] Call Trace: [ 58.913489][ T6820] dump_stack+0x188/0x20d [ 58.917803][ T6820] debug_smp_processor_id.cold+0x88/0x9b [ 58.923418][ T6820] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.928525][ T6820] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.933960][ T6820] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.939669][ T6820] ext4_ext_map_blocks+0x2044/0x3410 [ 58.944946][ T6820] ? ext4_ext_release+0x10/0x10 [ 58.949780][ T6820] ? __down_timeout+0x2d0/0x2d0 [ 58.954604][ T6820] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.960050][ T6820] ext4_map_blocks+0x4cb/0x1640 [ 58.964879][ T6820] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.970053][ T6820] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.975573][ T6820] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.981527][ T6820] ? prandom_u32_state+0xe/0x170 [ 58.986461][ T6820] ? __brelse+0x84/0xa0 [ 58.990591][ T6820] ? __ext4_new_inode+0x144/0x57c0 [ 58.995677][ T6820] ext4_getblk+0xad/0x520 [ 58.999993][ T6820] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.005700][ T6820] ? ext4_free_inode+0x17e0/0x17e0 [ 59.010798][ T6820] ext4_bread+0x7c/0x380 [ 59.015016][ T6820] ? ext4_getblk+0x520/0x520 [ 59.019590][ T6820] ? dqget+0xff0/0xff0 [ 59.023649][ T6820] ext4_append+0x153/0x360 [ 59.028044][ T6820] ext4_mkdir+0x5e0/0xdf0 [ 59.032352][ T6820] ? ext4_rmdir+0xde0/0xde0 [ 59.036832][ T6820] ? security_inode_permission+0xc4/0xf0 [ 59.042442][ T6820] vfs_mkdir+0x419/0x690 [ 59.046749][ T6820] do_mkdirat+0x21e/0x280 [ 59.051062][ T6820] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.055889][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.061842][ T6820] ? do_syscall_64+0x21/0x7d0 [ 59.066552][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.072540][ T6820] do_syscall_64+0xf6/0x7d0 [ 59.077054][ T6820] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.082923][ T6820] RIP: 0033:0x45bee7 [ 59.086797][ T6820] 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 [ 59.106377][ T6820] RSP: 002b:00007ffdbaf73f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.114766][ T6820] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.122714][ T6820] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffdbaf740e0 [ 59.130659][ T6820] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000028c0 [ 59.138604][ T6820] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.146550][ T6820] R13: 00007ffdbaf740e0 R14: 8421084210842109 R15: 00007ffdbaf740ec [ 59.244470][ T6821] IPVS: ftp: loaded support on port[0] = 21 [ 59.283250][ T6821] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6821 [ 59.292773][ T6821] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.298745][ T6821] CPU: 1 PID: 6821 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.306991][ T6821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.317035][ T6821] Call Trace: [ 59.320307][ T6821] dump_stack+0x188/0x20d [ 59.324628][ T6821] debug_smp_processor_id.cold+0x88/0x9b [ 59.330385][ T6821] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.335729][ T6821] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.341231][ T6821] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.347042][ T6821] ext4_ext_map_blocks+0x2044/0x3410 [ 59.352360][ T6821] ? ext4_ext_release+0x10/0x10 [ 59.357200][ T6821] ? __down_timeout+0x2d0/0x2d0 [ 59.362077][ T6821] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.367534][ T6821] ext4_map_blocks+0x4cb/0x1640 [ 59.372367][ T6821] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.377562][ T6821] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.383085][ T6821] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.389073][ T6821] ? prandom_u32_state+0xe/0x170 [ 59.394007][ T6821] ? __brelse+0x84/0xa0 [ 59.398153][ T6821] ? __ext4_new_inode+0x144/0x57c0 [ 59.403342][ T6821] ext4_getblk+0xad/0x520 [ 59.407693][ T6821] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.413480][ T6821] ? ext4_free_inode+0x17e0/0x17e0 [ 59.418593][ T6821] ext4_bread+0x7c/0x380 [ 59.423213][ T6821] ? ext4_getblk+0x520/0x520 [ 59.427790][ T6821] ? dqget+0xff0/0xff0 [ 59.431939][ T6821] ext4_append+0x153/0x360 [ 59.436351][ T6821] ext4_mkdir+0x5e0/0xdf0 [ 59.440665][ T6821] ? ext4_rmdir+0xde0/0xde0 [ 59.445149][ T6821] ? security_inode_permission+0xc4/0xf0 [ 59.450763][ T6821] vfs_mkdir+0x419/0x690 [ 59.454991][ T6821] do_mkdirat+0x21e/0x280 [ 59.459403][ T6821] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.464237][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.470200][ T6821] ? do_syscall_64+0x21/0x7d0 [ 59.474962][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.481357][ T6821] do_syscall_64+0xf6/0x7d0 [ 59.485846][ T6821] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.491737][ T6821] RIP: 0033:0x45bee7 [ 59.495612][ T6821] 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 [ 59.515293][ T6821] RSP: 002b:00007ffdbaf73df8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.523689][ T6821] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.531641][ T6821] RDX: 00007ffdbaf73e43 RSI: 00000000000001ff RDI: 00007ffdbaf73e40 [ 59.539677][ T6821] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.547657][ T6821] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.556475][ T6821] R13: 00007ffdbaf73e30 R14: 0000000000000000 R15: 00007ffdbaf73e40 [ 59.611668][ T6821] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6821 [ 59.621421][ T6821] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.627428][ T6821] CPU: 1 PID: 6821 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.636010][ T6821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.646686][ T6821] Call Trace: [ 59.649989][ T6821] dump_stack+0x188/0x20d [ 59.654364][ T6821] debug_smp_processor_id.cold+0x88/0x9b [ 59.660006][ T6821] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.665232][ T6821] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.672976][ T6821] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.679058][ T6821] ext4_ext_map_blocks+0x2044/0x3410 [ 59.684455][ T6821] ? ext4_ext_release+0x10/0x10 [ 59.689340][ T6821] ? __down_timeout+0x2d0/0x2d0 [ 59.694172][ T6821] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.699634][ T6821] ext4_map_blocks+0x4cb/0x1640 [ 59.704473][ T6821] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.709675][ T6821] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.715208][ T6821] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.721518][ T6821] ? prandom_u32_state+0xe/0x170 [ 59.726786][ T6821] ? __brelse+0x84/0xa0 [ 59.730920][ T6821] ? __ext4_new_inode+0x144/0x57c0 [ 59.736011][ T6821] ext4_getblk+0xad/0x520 [ 59.740320][ T6821] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.746050][ T6821] ? ext4_free_inode+0x17e0/0x17e0 [ 59.751220][ T6821] ext4_bread+0x7c/0x380 [ 59.755493][ T6821] ? ext4_getblk+0x520/0x520 [ 59.760069][ T6821] ? dqget+0xff0/0xff0 [ 59.764234][ T6821] ext4_append+0x153/0x360 [ 59.768648][ T6821] ext4_mkdir+0x5e0/0xdf0 [ 59.772968][ T6821] ? ext4_rmdir+0xde0/0xde0 [ 59.777453][ T6821] ? security_inode_permission+0xc4/0xf0 [ 59.783071][ T6821] vfs_mkdir+0x419/0x690 [ 59.787296][ T6821] do_mkdirat+0x21e/0x280 [ 59.791620][ T6821] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.796463][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.802419][ T6821] ? do_syscall_64+0x21/0x7d0 [ 59.807160][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.813119][ T6821] do_syscall_64+0xf6/0x7d0 [ 59.817882][ T6821] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.823837][ T6821] RIP: 0033:0x45bee7 [ 59.827730][ T6821] 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 [ 59.847324][ T6821] RSP: 002b:00007ffdbaf73df8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 2020/06/14 10:21:17 building call list... [ 59.855726][ T6821] RAX: ffffffffffffffda RBX: 000000000000e8d2 RCX: 000000000045bee7 [ 59.863786][ T6821] RDX: 00007ffdbaf73e43 RSI: 00000000000001ff RDI: 00007ffdbaf73e40 [ 59.871799][ T6821] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.879831][ T6821] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.887846][ T6821] R13: 00007ffdbaf73e30 R14: 000000000000e8bf R15: 00007ffdbaf73e40 [ 60.154477][ T56] tipc: TX() has been purged, node left! executing program [ 61.580525][ T6805] can: request_module (can-proto-0) failed. [ 61.603450][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.612863][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.619288][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.627366][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.637971][ T1155] Call Trace: [ 61.641269][ T1155] dump_stack+0x188/0x20d [ 61.645617][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.651263][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.656374][ T1155] ? __kmalloc+0x62f/0x7a0 [ 61.660816][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.667319][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.673054][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.678346][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.683217][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.688062][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.693522][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.698906][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.704096][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.709730][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.715272][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.721245][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.726923][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.731857][ T1155] ? mark_lock+0x30/0xdd0 [ 61.737018][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.742675][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.748573][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.753250][ T1155] do_writepages+0xfa/0x2a0 [ 61.757933][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.763740][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.768778][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.773978][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.778847][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.784648][ T1155] ? collapse_file+0x3575/0x4300 [ 61.789578][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.795645][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.800836][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.806830][ T1155] collapse_file+0x357f/0x4300 [ 61.811603][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.816974][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.821684][ T1155] khugepaged+0x3049/0x3f80 [ 61.826223][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.831861][ T1155] ? lock_downgrade+0x840/0x840 [ 61.836704][ T1155] ? finish_wait+0x260/0x260 [ 61.841289][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.847089][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.853068][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.858089][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.863715][ T1155] kthread+0x388/0x470 [ 61.867777][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.873602][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.879319][ T1155] ret_from_fork+0x24/0x30 [ 61.935838][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.944978][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.950894][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.958808][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.968841][ T1155] Call Trace: [ 61.972115][ T1155] dump_stack+0x188/0x20d [ 61.976427][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.982133][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.987228][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.992665][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.998815][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 62.008263][ T1155] ? ext4_ext_release+0x10/0x10 [ 62.013099][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 62.017928][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.023380][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 62.028233][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.033443][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 62.038898][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.044429][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.050516][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.055973][ T1155] ext4_writepages+0x1ab7/0x3400 [ 62.060910][ T1155] ? mark_lock+0x30/0xdd0 [ 62.065249][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.070888][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.076517][ T1155] ? do_writepages+0xfa/0x2a0 [ 62.081175][ T1155] do_writepages+0xfa/0x2a0 [ 62.085664][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 62.091275][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 62.096288][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 62.101466][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 62.106297][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.112012][ T1155] ? collapse_file+0x3575/0x4300 [ 62.118056][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 62.124109][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.131383][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.137469][ T1155] collapse_file+0x357f/0x4300 [ 62.142280][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 62.147662][ T1155] ? khugepaged+0x24fa/0x3f80 [ 62.152361][ T1155] khugepaged+0x3049/0x3f80 [ 62.156858][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.162470][ T1155] ? lock_downgrade+0x840/0x840 [ 62.167307][ T1155] ? finish_wait+0x260/0x260 [ 62.172007][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.177819][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.183786][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 62.189322][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.194935][ T1155] kthread+0x388/0x470 [ 62.198984][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.204688][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.210423][ T1155] ret_from_fork+0x24/0x30 [ 62.241687][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 62.250805][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.256931][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.264817][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.275092][ T1155] Call Trace: [ 62.278363][ T1155] dump_stack+0x188/0x20d [ 62.282670][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 62.288424][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.293555][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.299059][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.305200][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 62.310468][ T1155] ? ext4_ext_release+0x10/0x10 [ 62.315322][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 62.320148][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.325588][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 62.330421][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.335610][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 62.341059][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.346592][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.352556][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.357994][ T1155] ext4_writepages+0x1ab7/0x3400 [ 62.363001][ T1155] ? mark_lock+0x30/0xdd0 [ 62.367396][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.373046][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.378672][ T1155] ? do_writepages+0xfa/0x2a0 [ 62.383324][ T1155] do_writepages+0xfa/0x2a0 [ 62.387812][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 62.393426][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 62.398430][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 62.403604][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 62.409141][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.414839][ T1155] ? collapse_file+0x3575/0x4300 [ 62.419767][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 62.425820][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.430998][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.436972][ T1155] collapse_file+0x357f/0x4300 [ 62.441721][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 62.447083][ T1155] ? khugepaged+0x24fa/0x3f80 [ 62.451763][ T1155] khugepaged+0x3049/0x3f80 [ 62.456406][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.462040][ T1155] ? lock_downgrade+0x840/0x840 [ 62.466931][ T1155] ? finish_wait+0x260/0x260 [ 62.471557][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.477351][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.483312][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 62.488314][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.493923][ T1155] kthread+0x388/0x470 [ 62.498070][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.503771][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.509480][ T1155] ret_from_fork+0x24/0x30 [ 62.787366][ T6805] can: request_module (can-proto-0) failed. [ 62.799635][ T6805] can: request_module (can-proto-0) failed.