[ OK ] Started Getty on tty4. [ 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... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ 53.644311][ T6839] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6839 [ 53.653923][ T6839] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 53.659798][ T6839] CPU: 1 PID: 6839 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 53.668012][ T6839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.678046][ T6839] Call Trace: [ 53.681319][ T6839] dump_stack+0x188/0x20d [ 53.685628][ T6839] debug_smp_processor_id.cold+0x88/0x9b [ 53.691245][ T6839] ext4_mb_new_blocks+0xa77/0x3b30 [ 53.696342][ T6839] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.701777][ T6839] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.707483][ T6839] ext4_ext_map_blocks+0x2044/0x3410 [ 53.712789][ T6839] ? ext4_ext_release+0x10/0x10 [ 53.717632][ T6839] ? __down_timeout+0x2d0/0x2d0 [ 53.722483][ T6839] ? ext4_es_lookup_extent+0x41d/0xd30 [ 53.727922][ T6839] ext4_map_blocks+0x4cb/0x1640 [ 53.732754][ T6839] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.737925][ T6839] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.743448][ T6839] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.749406][ T6839] ? prandom_u32_state+0xe/0x170 [ 53.754318][ T6839] ? __brelse+0x84/0xa0 [ 53.758458][ T6839] ? __ext4_new_inode+0x144/0x57c0 [ 53.763547][ T6839] ext4_getblk+0xad/0x520 [ 53.767853][ T6839] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.773551][ T6839] ? ext4_free_inode+0x17e0/0x17e0 [ 53.778654][ T6839] ext4_bread+0x7c/0x380 [ 53.782887][ T6839] ? ext4_getblk+0x520/0x520 [ 53.787454][ T6839] ? dqget+0xff0/0xff0 [ 53.791504][ T6839] ext4_append+0x153/0x360 [ 53.795909][ T6839] ext4_mkdir+0x5e0/0xdf0 [ 53.800222][ T6839] ? ext4_rmdir+0xde0/0xde0 [ 53.804706][ T6839] ? security_inode_permission+0xc4/0xf0 [ 53.810315][ T6839] vfs_mkdir+0x419/0x690 [ 53.814547][ T6839] do_mkdirat+0x21e/0x280 [ 53.818853][ T6839] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.823678][ T6839] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.829665][ T6839] ? do_syscall_64+0x21/0x7d0 [ 53.834365][ T6839] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.840326][ T6839] do_syscall_64+0xf6/0x7d0 [ 53.844815][ T6839] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.850700][ T6839] RIP: 0033:0x7f87ea23c687 [ 53.855093][ T6839] 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 [ 53.874671][ T6839] RSP: 002b:00007ffed2190db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.883066][ T6839] RAX: ffffffffffffffda RBX: 000055a9ab16c985 RCX: 00007f87ea23c687 [ 53.891026][ T6839] RDX: 00007ffed2190c80 RSI: 00000000000001ed RDI: 000055a9ab16c985 [ 53.898984][ T6839] RBP: 00007f87ea23c680 R08: 0000000000000100 R09: 0000000000000000 [ 53.906957][ T6839] R10: 000055a9ab16c980 R11: 0000000000000246 R12: 00000000000001ed [ 53.914954][ T6839] R13: 00007ffed2190f40 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.309681][ T149] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/149 [ 57.318814][ T149] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.324801][ T149] CPU: 1 PID: 149 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 57.332874][ T149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.342965][ T149] Workqueue: writeback wb_workfn (flush-8:0) [ 57.348936][ T149] Call Trace: [ 57.352213][ T149] dump_stack+0x188/0x20d [ 57.356523][ T149] debug_smp_processor_id.cold+0x88/0x9b [ 57.362160][ T149] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.367246][ T149] ? __kmalloc+0x62f/0x7a0 [ 57.371645][ T149] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.377096][ T149] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.382794][ T149] ext4_ext_map_blocks+0x2044/0x3410 [ 57.388057][ T149] ? ext4_ext_release+0x10/0x10 [ 57.392909][ T149] ? __down_timeout+0x2d0/0x2d0 [ 57.397746][ T149] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.403194][ T149] ? debug_smp_processor_id+0x2f/0x185 [ 57.408630][ T149] ext4_map_blocks+0x4cb/0x1640 [ 57.413463][ T149] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.418646][ T149] ? debug_smp_processor_id+0x2f/0x185 [ 57.424100][ T149] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.429635][ T149] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.435590][ T149] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.441047][ T149] ext4_writepages+0x1ab7/0x3400 [ 57.446018][ T149] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.451631][ T149] ? __lock_acquire+0x2224/0x48a0 [ 57.456655][ T149] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.462653][ T149] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.468645][ T149] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.474288][ T149] ? do_writepages+0xfa/0x2a0 [ 57.478973][ T149] do_writepages+0xfa/0x2a0 [ 57.483473][ T149] ? page_writeback_cpu_online+0x10/0x10 [ 57.489205][ T149] ? debug_smp_processor_id+0x2f/0x185 [ 57.494819][ T149] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.500358][ T149] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.506339][ T149] ? lock_downgrade+0x840/0x840 [ 57.511284][ T149] __writeback_single_inode+0x12a/0x1410 [ 57.516914][ T149] ? _raw_spin_unlock+0x24/0x40 [ 57.521744][ T149] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.527703][ T149] writeback_sb_inodes+0x515/0xdd0 [ 57.532809][ T149] ? __writeback_single_inode+0x1410/0x1410 [ 57.538689][ T149] __writeback_inodes_wb+0xc3/0x250 [ 57.543986][ T149] wb_writeback+0x910/0xd90 [ 57.548464][ T149] ? print_usage_bug+0x240/0x240 [ 57.553391][ T149] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.559713][ T149] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.565594][ T149] ? cpumask_next+0x3c/0x40 [ 57.570094][ T149] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.575269][ T149] wb_workfn+0xadf/0x10d0 [ 57.579576][ T149] ? inode_wait_for_writeback+0x30/0x30 [ 57.585104][ T149] ? debug_smp_processor_id+0x2f/0x185 [ 57.590540][ T149] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.596061][ T149] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.602044][ T149] process_one_work+0x965/0x16a0 [ 57.606974][ T149] ? lock_release+0x800/0x800 [ 57.611627][ T149] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.616974][ T149] ? rwlock_bug.part.0+0x90/0x90 [ 57.621890][ T149] worker_thread+0x96/0xe10 [ 57.626376][ T149] ? process_one_work+0x16a0/0x16a0 [ 57.631559][ T149] kthread+0x388/0x470 [ 57.635615][ T149] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.641489][ T149] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.647192][ T149] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.118' (ECDSA) to the list of known hosts. 2020/06/11 11:16:02 fuzzer started 2020/06/11 11:16:03 connecting to host at 10.128.0.26:39883 2020/06/11 11:16:03 checking machine... 2020/06/11 11:16:03 checking revisions... 2020/06/11 11:16:03 testing simple program... [ 59.120969][ T6911] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6911 [ 59.130129][ T6911] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.136047][ T6911] CPU: 1 PID: 6911 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.143908][ T6911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.153936][ T6911] Call Trace: [ 59.157209][ T6911] dump_stack+0x188/0x20d [ 59.161607][ T6911] debug_smp_processor_id.cold+0x88/0x9b [ 59.167216][ T6911] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.172321][ T6911] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.177759][ T6911] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.183456][ T6911] ext4_ext_map_blocks+0x2044/0x3410 [ 59.188801][ T6911] ? ext4_ext_release+0x10/0x10 [ 59.193640][ T6911] ? __down_timeout+0x2d0/0x2d0 [ 59.198464][ T6911] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.203915][ T6911] ext4_map_blocks+0x4cb/0x1640 [ 59.208761][ T6911] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.213971][ T6911] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.219495][ T6911] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.225449][ T6911] ? prandom_u32_state+0xe/0x170 [ 59.230363][ T6911] ? __brelse+0x84/0xa0 [ 59.234492][ T6911] ? __ext4_new_inode+0x144/0x57c0 [ 59.239594][ T6911] ext4_getblk+0xad/0x520 [ 59.243916][ T6911] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.249624][ T6911] ? ext4_free_inode+0x17e0/0x17e0 [ 59.254714][ T6911] ext4_bread+0x7c/0x380 [ 59.258931][ T6911] ? ext4_getblk+0x520/0x520 [ 59.263496][ T6911] ? dqget+0xff0/0xff0 [ 59.267561][ T6911] ext4_append+0x153/0x360 [ 59.271952][ T6911] ext4_mkdir+0x5e0/0xdf0 [ 59.276271][ T6911] ? ext4_rmdir+0xde0/0xde0 [ 59.280754][ T6911] ? security_inode_permission+0xc4/0xf0 [ 59.286386][ T6911] vfs_mkdir+0x419/0x690 [ 59.290605][ T6911] do_mkdirat+0x21e/0x280 [ 59.294911][ T6911] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.299736][ T6911] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.305693][ T6911] ? do_syscall_64+0x21/0x7d0 [ 59.310357][ T6911] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.316322][ T6911] do_syscall_64+0xf6/0x7d0 [ 59.320801][ T6911] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.326664][ T6911] RIP: 0033:0x4b02a0 [ 59.330534][ T6911] 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 [ 59.350123][ T6911] RSP: 002b:000000c0003c14b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.358505][ T6911] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.366460][ T6911] RDX: 00000000000001c0 RSI: 000000c000026d60 RDI: ffffffffffffff9c [ 59.374412][ T6911] RBP: 000000c0003c1510 R08: 0000000000000000 R09: 0000000000000000 [ 59.382369][ T6911] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.390315][ T6911] R13: 000000000000006c R14: 000000000000006b R15: 0000000000000100 [ 59.416986][ T6926] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6926 [ 59.426520][ T6926] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.432689][ T6926] CPU: 0 PID: 6926 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.440918][ T6926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.451015][ T6926] Call Trace: [ 59.454302][ T6926] dump_stack+0x188/0x20d [ 59.458609][ T6926] debug_smp_processor_id.cold+0x88/0x9b [ 59.464224][ T6926] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.469334][ T6926] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.474767][ T6926] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.480465][ T6926] ext4_ext_map_blocks+0x2044/0x3410 [ 59.485732][ T6926] ? ext4_ext_release+0x10/0x10 [ 59.490568][ T6926] ? __down_timeout+0x2d0/0x2d0 [ 59.495392][ T6926] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.500831][ T6926] ext4_map_blocks+0x4cb/0x1640 [ 59.505692][ T6926] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.510876][ T6926] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.516448][ T6926] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.522411][ T6926] ? prandom_u32_state+0xe/0x170 [ 59.527328][ T6926] ? __brelse+0x84/0xa0 [ 59.531472][ T6926] ? __ext4_new_inode+0x144/0x57c0 [ 59.536571][ T6926] ext4_getblk+0xad/0x520 [ 59.540878][ T6926] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.546574][ T6926] ? ext4_free_inode+0x17e0/0x17e0 [ 59.551679][ T6926] ext4_bread+0x7c/0x380 [ 59.555898][ T6926] ? ext4_getblk+0x520/0x520 [ 59.560465][ T6926] ? dqget+0xff0/0xff0 [ 59.564514][ T6926] ext4_append+0x153/0x360 [ 59.568908][ T6926] ext4_mkdir+0x5e0/0xdf0 [ 59.573224][ T6926] ? ext4_rmdir+0xde0/0xde0 [ 59.577704][ T6926] ? security_inode_permission+0xc4/0xf0 [ 59.583330][ T6926] vfs_mkdir+0x419/0x690 [ 59.587560][ T6926] do_mkdirat+0x21e/0x280 [ 59.591875][ T6926] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.596700][ T6926] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.602664][ T6926] ? do_syscall_64+0x21/0x7d0 [ 59.607313][ T6926] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.613274][ T6926] do_syscall_64+0xf6/0x7d0 [ 59.617756][ T6926] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.623627][ T6926] RIP: 0033:0x45bee7 [ 59.627495][ T6926] 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 [ 59.647076][ T6926] RSP: 002b:00007ffe81f144b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.655478][ T6926] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.663435][ T6926] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe81f14690 [ 59.671382][ T6926] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000032c0 [ 59.679339][ T6926] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.687282][ T6926] R13: 00007ffe81f14690 R14: 8421084210842109 R15: 00007ffe81f1469c [ 59.775647][ T6927] IPVS: ftp: loaded support on port[0] = 21 [ 59.812520][ T6927] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6927 [ 59.821949][ T6927] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.827831][ T6927] CPU: 0 PID: 6927 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.836047][ T6927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.846195][ T6927] Call Trace: [ 59.849478][ T6927] dump_stack+0x188/0x20d [ 59.853828][ T6927] debug_smp_processor_id.cold+0x88/0x9b [ 59.859451][ T6927] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.864545][ T6927] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.869997][ T6927] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.875693][ T6927] ext4_ext_map_blocks+0x2044/0x3410 [ 59.880956][ T6927] ? ext4_ext_release+0x10/0x10 [ 59.885810][ T6927] ? __down_timeout+0x2d0/0x2d0 [ 59.891472][ T6927] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.896920][ T6927] ext4_map_blocks+0x4cb/0x1640 [ 59.901758][ T6927] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.906975][ T6927] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.912497][ T6927] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.918594][ T6927] ? prandom_u32_state+0xe/0x170 [ 59.923517][ T6927] ? __brelse+0x84/0xa0 [ 59.927649][ T6927] ? __ext4_new_inode+0x144/0x57c0 [ 59.932738][ T6927] ext4_getblk+0xad/0x520 [ 59.937050][ T6927] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.942748][ T6927] ? ext4_free_inode+0x17e0/0x17e0 [ 59.947853][ T6927] ext4_bread+0x7c/0x380 [ 59.952081][ T6927] ? ext4_getblk+0x520/0x520 [ 59.956645][ T6927] ? dqget+0xff0/0xff0 [ 59.960693][ T6927] ext4_append+0x153/0x360 [ 59.965352][ T6927] ext4_mkdir+0x5e0/0xdf0 [ 59.969662][ T6927] ? ext4_rmdir+0xde0/0xde0 [ 59.974146][ T6927] ? security_inode_permission+0xc4/0xf0 [ 59.979775][ T6927] vfs_mkdir+0x419/0x690 [ 59.983995][ T6927] do_mkdirat+0x21e/0x280 [ 59.988299][ T6927] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.993124][ T6927] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.999091][ T6927] ? do_syscall_64+0x21/0x7d0 [ 60.003754][ T6927] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.009731][ T6927] do_syscall_64+0xf6/0x7d0 [ 60.014236][ T6927] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.020113][ T6927] RIP: 0033:0x45bee7 [ 60.023990][ T6927] 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 [ 60.043576][ T6927] RSP: 002b:00007ffe81f143a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.051970][ T6927] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.059917][ T6927] RDX: 00007ffe81f143f3 RSI: 00000000000001ff RDI: 00007ffe81f143f0 [ 60.067895][ T6927] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.075877][ T6927] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 60.083858][ T6927] R13: 00007ffe81f143e0 R14: 0000000000000000 R15: 00007ffe81f143f0 [ 60.149111][ T6927] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6927 [ 60.158521][ T6927] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.164550][ T6927] CPU: 0 PID: 6927 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.172779][ T6927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.182832][ T6927] Call Trace: [ 60.186130][ T6927] dump_stack+0x188/0x20d [ 60.190464][ T6927] debug_smp_processor_id.cold+0x88/0x9b [ 60.196095][ T6927] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.201216][ T6927] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.206659][ T6927] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.212433][ T6927] ext4_ext_map_blocks+0x2044/0x3410 [ 60.217704][ T6927] ? ext4_ext_release+0x10/0x10 [ 60.222556][ T6927] ? __down_timeout+0x2d0/0x2d0 [ 60.227422][ T6927] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.232858][ T6927] ext4_map_blocks+0x4cb/0x1640 [ 60.237687][ T6927] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.242859][ T6927] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.248420][ T6927] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.254376][ T6927] ? prandom_u32_state+0xe/0x170 [ 60.259302][ T6927] ? __brelse+0x84/0xa0 [ 60.263432][ T6927] ? __ext4_new_inode+0x144/0x57c0 [ 60.268526][ T6927] ext4_getblk+0xad/0x520 [ 60.272833][ T6927] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.278530][ T6927] ? ext4_free_inode+0x17e0/0x17e0 [ 60.283619][ T6927] ext4_bread+0x7c/0x380 [ 60.287835][ T6927] ? ext4_getblk+0x520/0x520 [ 60.292416][ T6927] ? dqget+0xff0/0xff0 [ 60.296464][ T6927] ext4_append+0x153/0x360 [ 60.300858][ T6927] ext4_mkdir+0x5e0/0xdf0 [ 60.305168][ T6927] ? ext4_rmdir+0xde0/0xde0 [ 60.309649][ T6927] ? security_inode_permission+0xc4/0xf0 [ 60.315270][ T6927] vfs_mkdir+0x419/0x690 [ 60.319499][ T6927] do_mkdirat+0x21e/0x280 [ 60.323804][ T6927] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.328630][ T6927] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.334583][ T6927] ? do_syscall_64+0x21/0x7d0 [ 60.339244][ T6927] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.345197][ T6927] do_syscall_64+0xf6/0x7d0 [ 60.349677][ T6927] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.355542][ T6927] RIP: 0033:0x45bee7 [ 60.359423][ T6927] 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 [ 60.379000][ T6927] RSP: 002b:00007ffe81f143a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.387392][ T6927] RAX: ffffffffffffffda RBX: 000000000000eaee RCX: 000000000045bee7 2020/06/11 11:16:04 building call list... [ 60.395348][ T6927] RDX: 00007ffe81f143f3 RSI: 00000000000001ff RDI: 00007ffe81f143f0 [ 60.403292][ T6927] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.411336][ T6927] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.419282][ T6927] R13: 00007ffe81f143e0 R14: 000000000000eadc R15: 00007ffe81f143f0 [ 60.708623][ T21] tipc: TX() has been purged, node left! [ 60.994471][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.003719][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.009707][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.017587][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.027632][ T1155] Call Trace: [ 61.030919][ T1155] dump_stack+0x188/0x20d [ 61.035245][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.040872][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.045973][ T1155] ? __kmalloc+0x62f/0x7a0 [ 61.050512][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.055969][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.061805][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.067099][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.071962][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.076812][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.082413][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.087273][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.092476][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.097961][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.103520][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.109507][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.114996][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.119937][ T1155] ? mark_lock+0x30/0xdd0 [ 61.124277][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.129932][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.135563][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.140235][ T1155] do_writepages+0xfa/0x2a0 [ 61.144739][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.150456][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.155483][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.160685][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.165532][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.171268][ T1155] ? collapse_file+0x3575/0x4300 [ 61.176199][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.182275][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.187471][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.193477][ T1155] collapse_file+0x357f/0x4300 [ 61.198254][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.203618][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.208309][ T1155] khugepaged+0x3049/0x3f80 [ 61.212829][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.218457][ T1155] ? lock_downgrade+0x840/0x840 [ 61.223303][ T1155] ? finish_wait+0x260/0x260 [ 61.227888][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.233688][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.239669][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.244691][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.250332][ T1155] kthread+0x388/0x470 [ 61.254395][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.260107][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.265827][ T1155] ret_from_fork+0x24/0x30 [ 61.404237][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.413402][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.419365][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.427270][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.437311][ T1155] Call Trace: [ 61.440606][ T1155] dump_stack+0x188/0x20d [ 61.444956][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.450595][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.455717][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.461173][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.467318][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.472615][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.477482][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.482334][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.487800][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.492669][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.497870][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.503350][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.508912][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.514882][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.520420][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.525357][ T1155] ? mark_lock+0x30/0xdd0 [ 61.529690][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.535359][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.540986][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.545650][ T1155] do_writepages+0xfa/0x2a0 [ 61.550159][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.555785][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.560805][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.566000][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.570852][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.576564][ T1155] ? collapse_file+0x3575/0x4300 [ 61.581494][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.587560][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.592756][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.598740][ T1155] collapse_file+0x357f/0x4300 [ 61.603516][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.608881][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.613568][ T1155] khugepaged+0x3049/0x3f80 [ 61.618089][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.623715][ T1155] ? lock_downgrade+0x840/0x840 [ 61.628561][ T1155] ? finish_wait+0x260/0x260 [ 61.633145][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.638947][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.644930][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.649949][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.655707][ T1155] kthread+0x388/0x470 [ 61.659786][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.665500][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.671221][ T1155] ret_from_fork+0x24/0x30 [ 61.723498][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.732675][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.738641][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.746515][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.756560][ T1155] Call Trace: [ 61.759851][ T1155] dump_stack+0x188/0x20d [ 61.764184][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.769807][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.774924][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.780385][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.786532][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.791822][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.796681][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.801525][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.806991][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.811844][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.817051][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.822507][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.828051][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.834065][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.839528][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.844465][ T1155] ? mark_lock+0x30/0xdd0 [ 61.848808][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.854474][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.860105][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.864774][ T1155] do_writepages+0xfa/0x2a0 [ 61.869281][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.874997][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.880017][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.885212][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.890065][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.895800][ T1155] ? collapse_file+0x3575/0x4300 [ 61.900749][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.906828][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.912026][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.918027][ T1155] collapse_file+0x357f/0x4300 [ 61.922817][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.928180][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.932873][ T1155] khugepaged+0x3049/0x3f80 [ 61.937405][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.943033][ T1155] ? lock_downgrade+0x840/0x840 [ 61.947879][ T1155] ? finish_wait+0x260/0x260 [ 61.952466][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.958269][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.964248][ T1155] ? __kthread_parkme+0x13f/0x1e0 executing program [ 61.969267][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.974894][ T1155] kthread+0x388/0x470 [ 61.978955][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.984664][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.990388][ T1155] ret_from_fork+0x24/0x30 [ 62.315172][ T6911] can: request_module (can-proto-0) failed. [ 63.532817][ T6911] can: request_module (can-proto-0) failed. [ 63.544218][ T6911] can: request_module (can-proto-0) failed.