[ 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... [ 53.323483][ T6913] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6913 [ 53.333465][ T6913] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 53.339850][ T6913] CPU: 1 PID: 6913 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 53.348084][ T6913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.358120][ T6913] Call Trace: [ 53.361392][ T6913] dump_stack+0x188/0x20d [ 53.365699][ T6913] debug_smp_processor_id.cold+0x88/0x9b [ 53.371311][ T6913] ext4_mb_new_blocks+0xa77/0x3b30 [ 53.376406][ T6913] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.381852][ T6913] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.387577][ T6913] ext4_ext_map_blocks+0x2044/0x3410 [ 53.392854][ T6913] ? ext4_ext_release+0x10/0x10 [ 53.397691][ T6913] ? __down_timeout+0x2d0/0x2d0 [ 53.402521][ T6913] ? ext4_es_lookup_extent+0x41d/0xd30 [ 53.407957][ T6913] ext4_map_blocks+0x4cb/0x1640 [ 53.412802][ T6913] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.417975][ T6913] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.423496][ T6913] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.429452][ T6913] ? prandom_u32_state+0xe/0x170 [ 53.434384][ T6913] ? __brelse+0x84/0xa0 [ 53.438523][ T6913] ? __ext4_new_inode+0x144/0x57c0 [ 53.443673][ T6913] ext4_getblk+0xad/0x520 [ 53.448053][ T6913] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.453754][ T6913] ? ext4_free_inode+0x17e0/0x17e0 [ 53.458847][ T6913] ext4_bread+0x7c/0x380 [ 53.463081][ T6913] ? ext4_getblk+0x520/0x520 [ 53.467660][ T6913] ? dqget+0xff0/0xff0 [ 53.471725][ T6913] ext4_append+0x153/0x360 [ 53.476244][ T6913] ext4_mkdir+0x5e0/0xdf0 [ 53.480581][ T6913] ? ext4_rmdir+0xde0/0xde0 [ 53.485119][ T6913] ? security_inode_permission+0xc4/0xf0 [ 53.490786][ T6913] vfs_mkdir+0x419/0x690 [ 53.495135][ T6913] do_mkdirat+0x21e/0x280 [ 53.499465][ T6913] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.504296][ T6913] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.510263][ T6913] ? do_syscall_64+0x21/0x7d0 [ 53.514931][ T6913] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.521001][ T6913] do_syscall_64+0xf6/0x7d0 [ 53.525515][ T6913] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.531392][ T6913] RIP: 0033:0x7feb9566d687 [ 53.536236][ T6913] 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 [ 53.555826][ T6913] RSP: 002b:00007ffe11106f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.564245][ T6913] RAX: ffffffffffffffda RBX: 0000561ee0cbb985 RCX: 00007feb9566d687 [ 53.572199][ T6913] RDX: 00007ffe11106e60 RSI: 00000000000001ed RDI: 0000561ee0cbb985 [ 53.580164][ T6913] RBP: 00007feb9566d680 R08: 0000000000000100 R09: 0000000000000000 [ 53.588112][ T6913] R10: 0000561ee0cbb980 R11: 0000000000000246 R12: 00000000000001ed [ 53.596069][ T6913] R13: 00007ffe11107120 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.386270][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 57.395273][ T7] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.401277][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 57.409074][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.419213][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 57.425164][ T7] Call Trace: [ 57.428435][ T7] dump_stack+0x188/0x20d [ 57.432743][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 57.438351][ T7] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.443437][ T7] ? __kmalloc+0x62f/0x7a0 [ 57.447840][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.453272][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.458970][ T7] ext4_ext_map_blocks+0x2044/0x3410 [ 57.464231][ T7] ? ext4_ext_release+0x10/0x10 [ 57.469076][ T7] ? __down_timeout+0x2d0/0x2d0 [ 57.473902][ T7] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.479336][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.484784][ T7] ext4_map_blocks+0x4cb/0x1640 [ 57.489631][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.495000][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.500436][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.506132][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.512105][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.517558][ T7] ext4_writepages+0x1ab7/0x3400 [ 57.522495][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.528117][ T7] ? __lock_acquire+0x2224/0x48a0 [ 57.533175][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.539163][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.545127][ T7] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.550758][ T7] ? do_writepages+0xfa/0x2a0 [ 57.555462][ T7] do_writepages+0xfa/0x2a0 [ 57.560080][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 57.565781][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.571246][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.577558][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.583564][ T7] ? lock_downgrade+0x840/0x840 [ 57.588401][ T7] __writeback_single_inode+0x12a/0x1410 [ 57.594013][ T7] ? _raw_spin_unlock+0x24/0x40 [ 57.598838][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.604795][ T7] writeback_sb_inodes+0x515/0xdd0 [ 57.609890][ T7] ? __writeback_single_inode+0x1410/0x1410 [ 57.615784][ T7] __writeback_inodes_wb+0xc3/0x250 [ 57.620963][ T7] wb_writeback+0x910/0xd90 [ 57.625443][ T7] ? print_usage_bug+0x240/0x240 [ 57.630359][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.636685][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.642554][ T7] ? cpumask_next+0x3c/0x40 [ 57.647033][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.652227][ T7] wb_workfn+0xadf/0x10d0 [ 57.656546][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 57.662074][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.667520][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.673051][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.679011][ T7] process_one_work+0x965/0x16a0 [ 57.684015][ T7] ? lock_release+0x800/0x800 [ 57.688672][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.694032][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 57.698961][ T7] worker_thread+0x96/0xe10 [ 57.703453][ T7] ? process_one_work+0x16a0/0x16a0 [ 57.708638][ T7] kthread+0x388/0x470 [ 57.712692][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.718410][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.724141][ T7] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.15.199' (ECDSA) to the list of known hosts. 2020/06/13 01:17:45 fuzzer started 2020/06/13 01:17:45 connecting to host at 10.128.0.26:35719 2020/06/13 01:17:45 checking machine... 2020/06/13 01:17:45 checking revisions... [ 58.360536][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 58.369890][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.375882][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.383884][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.393938][ T1155] Call Trace: [ 58.397235][ T1155] dump_stack+0x188/0x20d [ 58.401572][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 58.407206][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.412318][ T1155] ? __kmalloc+0x62f/0x7a0 [ 58.416748][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.422211][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.427944][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 58.433253][ T1155] ? ext4_ext_release+0x10/0x10 [ 58.438122][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 58.442972][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.448439][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 58.453297][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.458494][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 58.463957][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.469505][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.475488][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.480957][ T1155] ext4_writepages+0x1ab7/0x3400 [ 58.485901][ T1155] ? mark_lock+0x30/0xdd0 [ 58.490247][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.495914][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.501549][ T1155] ? do_writepages+0xfa/0x2a0 [ 58.506230][ T1155] do_writepages+0xfa/0x2a0 [ 58.510737][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 58.516371][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 58.521400][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 58.526606][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 58.531473][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 58.537198][ T1155] ? collapse_file+0x3575/0x4300 [ 58.542142][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 58.548225][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 58.553426][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.559432][ T1155] collapse_file+0x357f/0x4300 [ 58.564217][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 58.569636][ T1155] ? khugepaged+0x24fa/0x3f80 [ 58.574362][ T1155] khugepaged+0x3049/0x3f80 [ 58.578913][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.584554][ T1155] ? lock_downgrade+0x840/0x840 [ 58.589409][ T1155] ? finish_wait+0x260/0x260 [ 58.594000][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 58.599806][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.605968][ T1155] ? __kthread_parkme+0x13f/0x1e0 2020/06/13 01:17:45 testing simple program... [ 58.611012][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.616643][ T1155] kthread+0x388/0x470 [ 58.620011][ T6976] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6976 [ 58.620879][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.629964][ T6976] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.635608][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.647161][ T1155] ret_from_fork+0x24/0x30 [ 58.651765][ T6976] CPU: 0 PID: 6976 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.659761][ T6976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.669812][ T6976] Call Trace: [ 58.673106][ T6976] dump_stack+0x188/0x20d [ 58.677442][ T6976] debug_smp_processor_id.cold+0x88/0x9b [ 58.683074][ T6976] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.688196][ T6976] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.693661][ T6976] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.699388][ T6976] ext4_ext_map_blocks+0x2044/0x3410 [ 58.704681][ T6976] ? ext4_ext_release+0x10/0x10 [ 58.709552][ T6976] ? __down_timeout+0x2d0/0x2d0 [ 58.715003][ T6976] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.720467][ T6976] ext4_map_blocks+0x4cb/0x1640 [ 58.725490][ T6976] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.730673][ T6976] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.736206][ T6976] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.742179][ T6976] ? prandom_u32_state+0xe/0x170 [ 58.747111][ T6976] ? __brelse+0x84/0xa0 [ 58.748729][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 58.751269][ T6976] ? __ext4_new_inode+0x144/0x57c0 [ 58.751290][ T6976] ext4_getblk+0xad/0x520 [ 58.751307][ T6976] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.751328][ T6976] ? ext4_free_inode+0x17e0/0x17e0 [ 58.751346][ T6976] ext4_bread+0x7c/0x380 [ 58.751361][ T6976] ? ext4_getblk+0x520/0x520 [ 58.751375][ T6976] ? dqget+0xff0/0xff0 [ 58.751398][ T6976] ext4_append+0x153/0x360 [ 58.751418][ T6976] ext4_mkdir+0x5e0/0xdf0 [ 58.751442][ T6976] ? ext4_rmdir+0xde0/0xde0 [ 58.760485][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.765538][ T6976] ? security_inode_permission+0xc4/0xf0 [ 58.818065][ T6976] vfs_mkdir+0x419/0x690 [ 58.822305][ T6976] do_mkdirat+0x21e/0x280 [ 58.826616][ T6976] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.831446][ T6976] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.837417][ T6976] ? do_syscall_64+0x21/0x7d0 [ 58.842086][ T6976] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.848060][ T6976] do_syscall_64+0xf6/0x7d0 [ 58.852548][ T6976] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.858419][ T6976] RIP: 0033:0x4b02a0 [ 58.862297][ T6976] 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 [ 58.882588][ T6976] RSP: 002b:000000c0000e54b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.890978][ T6976] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 58.898929][ T6976] RDX: 00000000000001c0 RSI: 000000c0000263e0 RDI: ffffffffffffff9c [ 58.906878][ T6976] RBP: 000000c0000e5510 R08: 0000000000000000 R09: 0000000000000000 [ 58.914827][ T6976] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.922778][ T6976] R13: 0000000000000020 R14: 000000000000001f R15: 0000000000000100 [ 58.930750][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.938641][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.948693][ T1155] Call Trace: [ 58.951988][ T1155] dump_stack+0x188/0x20d [ 58.956325][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 58.961968][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.967102][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.972564][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 58.978717][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 58.984086][ T1155] ? ext4_ext_release+0x10/0x10 [ 58.988925][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 58.993752][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.999199][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 59.004047][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.010967][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 59.016418][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.021942][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.028015][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.033462][ T1155] ext4_writepages+0x1ab7/0x3400 [ 59.038390][ T1155] ? mark_lock+0x30/0xdd0 [ 59.042710][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.048338][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.053946][ T1155] ? do_writepages+0xfa/0x2a0 [ 59.058658][ T1155] do_writepages+0xfa/0x2a0 [ 59.063186][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 59.068799][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 59.073800][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 59.078989][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 59.083835][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.089623][ T1155] ? collapse_file+0x3575/0x4300 [ 59.094540][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.100601][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.105780][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.111745][ T1155] collapse_file+0x357f/0x4300 [ 59.116534][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 59.121880][ T1155] ? khugepaged+0x24fa/0x3f80 [ 59.126564][ T1155] khugepaged+0x3049/0x3f80 [ 59.131054][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.136663][ T1155] ? lock_downgrade+0x840/0x840 [ 59.141492][ T1155] ? finish_wait+0x260/0x260 [ 59.146059][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.151856][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.157831][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 59.162835][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.168517][ T1155] kthread+0x388/0x470 [ 59.172586][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.178339][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.184048][ T1155] ret_from_fork+0x24/0x30 [ 59.208095][ T6992] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6992 [ 59.217945][ T6992] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.224035][ T6992] CPU: 1 PID: 6992 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.232255][ T6992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.242293][ T6992] Call Trace: [ 59.245572][ T6992] dump_stack+0x188/0x20d [ 59.249904][ T6992] debug_smp_processor_id.cold+0x88/0x9b [ 59.255523][ T6992] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.260642][ T6992] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.266078][ T6992] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.271777][ T6992] ext4_ext_map_blocks+0x2044/0x3410 [ 59.277042][ T6992] ? ext4_ext_release+0x10/0x10 [ 59.281876][ T6992] ? __down_timeout+0x2d0/0x2d0 [ 59.286702][ T6992] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.292149][ T6992] ext4_map_blocks+0x4cb/0x1640 [ 59.296994][ T6992] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.302165][ T6992] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.307729][ T6992] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.313699][ T6992] ? prandom_u32_state+0xe/0x170 [ 59.318615][ T6992] ? __brelse+0x84/0xa0 [ 59.322745][ T6992] ? __ext4_new_inode+0x144/0x57c0 [ 59.327834][ T6992] ext4_getblk+0xad/0x520 [ 59.332153][ T6992] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.337939][ T6992] ? ext4_free_inode+0x17e0/0x17e0 [ 59.343031][ T6992] ext4_bread+0x7c/0x380 [ 59.347269][ T6992] ? ext4_getblk+0x520/0x520 [ 59.351835][ T6992] ? dqget+0xff0/0xff0 [ 59.355882][ T6992] ext4_append+0x153/0x360 [ 59.360278][ T6992] ext4_mkdir+0x5e0/0xdf0 [ 59.364585][ T6992] ? ext4_rmdir+0xde0/0xde0 [ 59.369083][ T6992] ? security_inode_permission+0xc4/0xf0 [ 59.374695][ T6992] vfs_mkdir+0x419/0x690 [ 59.378928][ T6992] do_mkdirat+0x21e/0x280 [ 59.383241][ T6992] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.388090][ T6992] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.394056][ T6992] ? do_syscall_64+0x21/0x7d0 [ 59.398721][ T6992] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.404687][ T6992] do_syscall_64+0xf6/0x7d0 [ 59.409167][ T6992] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.415041][ T6992] RIP: 0033:0x45bee7 [ 59.418912][ T6992] 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 [ 59.438505][ T6992] RSP: 002b:00007ffd21b15a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.446904][ T6992] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.454949][ T6992] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffd21b15c00 [ 59.462910][ T6992] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000033c0 [ 59.470915][ T6992] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.478867][ T6992] R13: 00007ffd21b15c00 R14: 8421084210842109 R15: 00007ffd21b15c0c [ 59.504776][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 59.514048][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.520229][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.528223][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.538258][ T1155] Call Trace: [ 59.541553][ T1155] dump_stack+0x188/0x20d [ 59.545865][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 59.551483][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.556590][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.562028][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.568157][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 59.573505][ T1155] ? ext4_ext_release+0x10/0x10 [ 59.578352][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 59.583183][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.588619][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 59.593448][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.598626][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 59.604075][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.609596][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.615551][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.620982][ T1155] ext4_writepages+0x1ab7/0x3400 [ 59.625896][ T1155] ? mark_lock+0x30/0xdd0 [ 59.630208][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.635952][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.641834][ T1155] ? do_writepages+0xfa/0x2a0 [ 59.646492][ T1155] do_writepages+0xfa/0x2a0 [ 59.651069][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 59.656709][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 59.661711][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 59.666898][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 59.671747][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.677441][ T1155] ? collapse_file+0x3575/0x4300 [ 59.682362][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.688422][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.693670][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.699670][ T1155] collapse_file+0x357f/0x4300 [ 59.704421][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 59.710731][ T1155] ? khugepaged+0x24fa/0x3f80 [ 59.715395][ T1155] khugepaged+0x3049/0x3f80 [ 59.719901][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.725518][ T1155] ? lock_downgrade+0x840/0x840 [ 59.730345][ T1155] ? finish_wait+0x260/0x260 [ 59.734925][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.740705][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.746666][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 59.751666][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.757272][ T1155] kthread+0x388/0x470 [ 59.761313][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.767022][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.772719][ T1155] ret_from_fork+0x24/0x30 [ 59.867579][ T6993] IPVS: ftp: loaded support on port[0] = 21 [ 59.905353][ T6993] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6993 [ 59.914814][ T6993] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.920782][ T6993] CPU: 0 PID: 6993 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.929449][ T6993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.939495][ T6993] Call Trace: [ 59.942780][ T6993] dump_stack+0x188/0x20d [ 59.947091][ T6993] debug_smp_processor_id.cold+0x88/0x9b [ 59.952705][ T6993] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.957798][ T6993] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.963230][ T6993] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.968941][ T6993] ext4_ext_map_blocks+0x2044/0x3410 [ 59.974215][ T6993] ? ext4_ext_release+0x10/0x10 [ 59.979059][ T6993] ? __down_timeout+0x2d0/0x2d0 [ 59.983894][ T6993] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.989348][ T6993] ext4_map_blocks+0x4cb/0x1640 [ 59.994177][ T6993] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.999437][ T6993] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.004957][ T6993] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.010925][ T6993] ? prandom_u32_state+0xe/0x170 [ 60.015865][ T6993] ? __brelse+0x84/0xa0 [ 60.020515][ T6993] ? __ext4_new_inode+0x144/0x57c0 [ 60.025603][ T6993] ext4_getblk+0xad/0x520 [ 60.029924][ T6993] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.035623][ T6993] ? ext4_free_inode+0x17e0/0x17e0 [ 60.040710][ T6993] ext4_bread+0x7c/0x380 [ 60.045627][ T6993] ? ext4_getblk+0x520/0x520 [ 60.050202][ T6993] ? dqget+0xff0/0xff0 [ 60.054251][ T6993] ext4_append+0x153/0x360 [ 60.058662][ T6993] ext4_mkdir+0x5e0/0xdf0 [ 60.062969][ T6993] ? ext4_rmdir+0xde0/0xde0 [ 60.067463][ T6993] ? security_inode_permission+0xc4/0xf0 [ 60.073075][ T6993] vfs_mkdir+0x419/0x690 [ 60.077295][ T6993] do_mkdirat+0x21e/0x280 [ 60.081629][ T6993] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.086490][ T6993] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.092533][ T6993] ? do_syscall_64+0x21/0x7d0 [ 60.097201][ T6993] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.103169][ T6993] do_syscall_64+0xf6/0x7d0 [ 60.107740][ T6993] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.113603][ T6993] RIP: 0033:0x45bee7 [ 60.117477][ T6993] 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 [ 60.137057][ T6993] RSP: 002b:00007ffd21b15918 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.145451][ T6993] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.153420][ T6993] RDX: 00007ffd21b15963 RSI: 00000000000001ff RDI: 00007ffd21b15960 [ 60.161405][ T6993] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.169351][ T6993] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 60.177299][ T6993] R13: 00007ffd21b15950 R14: 0000000000000000 R15: 00007ffd21b15960 [ 60.231094][ T6993] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6993 [ 60.240732][ T6993] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.246731][ T6993] CPU: 0 PID: 6993 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.254965][ T6993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.265019][ T6993] Call Trace: [ 60.268317][ T6993] dump_stack+0x188/0x20d [ 60.272660][ T6993] debug_smp_processor_id.cold+0x88/0x9b [ 60.278300][ T6993] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.283459][ T6993] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.288918][ T6993] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.294627][ T6993] ext4_ext_map_blocks+0x2044/0x3410 [ 60.299892][ T6993] ? ext4_ext_release+0x10/0x10 [ 60.304727][ T6993] ? __down_timeout+0x2d0/0x2d0 [ 60.309552][ T6993] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.315008][ T6993] ext4_map_blocks+0x4cb/0x1640 [ 60.319855][ T6993] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.325042][ T6993] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.330575][ T6993] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.336550][ T6993] ? prandom_u32_state+0xe/0x170 [ 60.341481][ T6993] ? __brelse+0x84/0xa0 [ 60.345634][ T6993] ? __ext4_new_inode+0x144/0x57c0 [ 60.350724][ T6993] ext4_getblk+0xad/0x520 [ 60.355149][ T6993] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.360852][ T6993] ? ext4_free_inode+0x17e0/0x17e0 [ 60.365958][ T6993] ext4_bread+0x7c/0x380 [ 60.370182][ T6993] ? ext4_getblk+0x520/0x520 [ 60.374757][ T6993] ? dqget+0xff0/0xff0 [ 60.378891][ T6993] ext4_append+0x153/0x360 [ 60.383286][ T6993] ext4_mkdir+0x5e0/0xdf0 [ 60.387595][ T6993] ? ext4_rmdir+0xde0/0xde0 [ 60.392074][ T6993] ? security_inode_permission+0xc4/0xf0 [ 60.397714][ T6993] vfs_mkdir+0x419/0x690 [ 60.401931][ T6993] do_mkdirat+0x21e/0x280 [ 60.406238][ T6993] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.411080][ T6993] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.417047][ T6993] ? do_syscall_64+0x21/0x7d0 [ 60.421698][ T6993] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.427659][ T6993] do_syscall_64+0xf6/0x7d0 [ 60.432150][ T6993] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.438027][ T6993] RIP: 0033:0x45bee7 [ 60.441896][ T6993] 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 [ 60.461476][ T6993] RSP: 002b:00007ffd21b15918 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.469869][ T6993] RAX: ffffffffffffffda RBX: 000000000000eb39 RCX: 000000000045bee7 2020/06/13 01:17:48 building call list... [ 60.477826][ T6993] RDX: 00007ffd21b15963 RSI: 00000000000001ff RDI: 00007ffd21b15960 [ 60.485772][ T6993] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.493719][ T6993] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 60.501675][ T6993] R13: 00007ffd21b15950 R14: 000000000000eb24 R15: 00007ffd21b15960 [ 60.786457][ T7] tipc: TX() has been purged, node left! executing program [ 62.167700][ T6977] can: request_module (can-proto-0) failed. [ 62.749248][ T6977] can: request_module (can-proto-0) failed. [ 62.760468][ T6977] can: request_module (can-proto-0) failed.