[ 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... [ 52.259715][ T6733] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6733 [ 52.269127][ T6733] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 52.275055][ T6733] CPU: 0 PID: 6733 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 52.283310][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.293350][ T6733] Call Trace: [ 52.296632][ T6733] dump_stack+0x188/0x20d [ 52.300942][ T6733] debug_smp_processor_id.cold+0x88/0x9b [ 52.306550][ T6733] ext4_mb_new_blocks+0xa77/0x3b30 [ 52.311644][ T6733] ? ext4_ext_search_right+0x2ca/0xb20 [ 52.317077][ T6733] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 52.322776][ T6733] ext4_ext_map_blocks+0x2044/0x3410 [ 52.328054][ T6733] ? ext4_ext_release+0x10/0x10 [ 52.333151][ T6733] ? __down_timeout+0x2d0/0x2d0 [ 52.337974][ T6733] ? ext4_es_lookup_extent+0x41d/0xd30 [ 52.343410][ T6733] ext4_map_blocks+0x4cb/0x1640 [ 52.348240][ T6733] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 52.353410][ T6733] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 52.358933][ T6733] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 52.364885][ T6733] ? prandom_u32_state+0xe/0x170 [ 52.369908][ T6733] ? __brelse+0x84/0xa0 [ 52.374051][ T6733] ? __ext4_new_inode+0x144/0x57c0 [ 52.379156][ T6733] ext4_getblk+0xad/0x520 [ 52.383461][ T6733] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 52.389159][ T6733] ? ext4_free_inode+0x17e0/0x17e0 [ 52.394245][ T6733] ext4_bread+0x7c/0x380 [ 52.398458][ T6733] ? ext4_getblk+0x520/0x520 [ 52.403021][ T6733] ? dqget+0xff0/0xff0 [ 52.407068][ T6733] ext4_append+0x153/0x360 [ 52.411478][ T6733] ext4_mkdir+0x5e0/0xdf0 [ 52.415786][ T6733] ? ext4_rmdir+0xde0/0xde0 [ 52.420266][ T6733] ? security_inode_permission+0xc4/0xf0 [ 52.425879][ T6733] vfs_mkdir+0x419/0x690 [ 52.430131][ T6733] do_mkdirat+0x21e/0x280 [ 52.434439][ T6733] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.439265][ T6733] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.445218][ T6733] ? do_syscall_64+0x21/0x7d0 [ 52.449870][ T6733] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.455825][ T6733] do_syscall_64+0xf6/0x7d0 [ 52.460313][ T6733] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.466177][ T6733] RIP: 0033:0x7fda83bf9687 [ 52.470578][ T6733] 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 [ 52.490165][ T6733] RSP: 002b:00007ffcd890cfd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.498556][ T6733] RAX: ffffffffffffffda RBX: 000055e1869c2985 RCX: 00007fda83bf9687 [ 52.506512][ T6733] RDX: 00007ffcd890cea0 RSI: 00000000000001ed RDI: 000055e1869c2985 [ 52.514459][ T6733] RBP: 00007fda83bf9680 R08: 0000000000000100 R09: 0000000000000000 [ 52.522409][ T6733] R10: 000055e1869c2980 R11: 0000000000000246 R12: 00000000000001ed [ 52.530357][ T6733] R13: 00007ffcd890d160 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.177439][ T4451] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:9/4451 [ 56.186695][ T4451] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 56.192695][ T4451] CPU: 0 PID: 4451 Comm: kworker/u4:9 Not tainted 5.7.0-syzkaller #0 [ 56.200744][ T4451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.210830][ T4451] Workqueue: writeback wb_workfn (flush-8:0) [ 56.216789][ T4451] Call Trace: [ 56.220064][ T4451] dump_stack+0x188/0x20d [ 56.224437][ T4451] debug_smp_processor_id.cold+0x88/0x9b [ 56.230052][ T4451] ext4_mb_new_blocks+0xa77/0x3b30 [ 56.235138][ T4451] ? __kmalloc+0x62f/0x7a0 [ 56.239577][ T4451] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.245010][ T4451] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.250707][ T4451] ext4_ext_map_blocks+0x2044/0x3410 [ 56.256128][ T4451] ? ext4_ext_release+0x10/0x10 [ 56.260971][ T4451] ? __down_timeout+0x2d0/0x2d0 [ 56.265826][ T4451] ? ext4_es_lookup_extent+0x41d/0xd30 [ 56.271268][ T4451] ? debug_smp_processor_id+0x2f/0x185 [ 56.276709][ T4451] ext4_map_blocks+0x4cb/0x1640 [ 56.281587][ T4451] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.286796][ T4451] ? debug_smp_processor_id+0x2f/0x185 [ 56.292234][ T4451] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.297756][ T4451] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.303720][ T4451] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.309158][ T4451] ext4_writepages+0x1ab7/0x3400 [ 56.314106][ T4451] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.319712][ T4451] ? __lock_acquire+0x2224/0x48a0 [ 56.324725][ T4451] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.330681][ T4451] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.336634][ T4451] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.342241][ T4451] ? do_writepages+0xfa/0x2a0 [ 56.346892][ T4451] do_writepages+0xfa/0x2a0 [ 56.351383][ T4451] ? page_writeback_cpu_online+0x10/0x10 [ 56.356992][ T4451] ? debug_smp_processor_id+0x2f/0x185 [ 56.362426][ T4451] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.367945][ T4451] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.373924][ T4451] ? lock_downgrade+0x840/0x840 [ 56.378760][ T4451] __writeback_single_inode+0x12a/0x1410 [ 56.384421][ T4451] ? _raw_spin_unlock+0x24/0x40 [ 56.389262][ T4451] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.395262][ T4451] writeback_sb_inodes+0x515/0xdd0 [ 56.400358][ T4451] ? __writeback_single_inode+0x1410/0x1410 [ 56.406246][ T4451] __writeback_inodes_wb+0xc3/0x250 [ 56.411423][ T4451] wb_writeback+0x910/0xd90 [ 56.415901][ T4451] ? print_usage_bug+0x240/0x240 [ 56.420817][ T4451] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.427122][ T4451] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.432991][ T4451] ? cpumask_next+0x3c/0x40 [ 56.437470][ T4451] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.442643][ T4451] wb_workfn+0xadf/0x10d0 [ 56.446956][ T4451] ? inode_wait_for_writeback+0x30/0x30 [ 56.452476][ T4451] ? debug_smp_processor_id+0x2f/0x185 [ 56.457914][ T4451] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.463434][ T4451] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.469396][ T4451] process_one_work+0x965/0x16a0 [ 56.474313][ T4451] ? lock_release+0x800/0x800 [ 56.478977][ T4451] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.484325][ T4451] ? rwlock_bug.part.0+0x90/0x90 [ 56.490644][ T4451] worker_thread+0x96/0xe10 [ 56.495137][ T4451] ? process_one_work+0x16a0/0x16a0 [ 56.500314][ T4451] kthread+0x388/0x470 [ 56.504356][ T4451] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.510048][ T4451] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.515742][ T4451] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. 2020/06/11 05:28:57 fuzzer started 2020/06/11 05:28:58 connecting to host at 10.128.0.26:46293 2020/06/11 05:28:58 checking machine... 2020/06/11 05:28:58 checking revisions... 2020/06/11 05:28:58 testing simple program... [ 57.847574][ T6798] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6798 [ 57.856747][ T6798] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.862631][ T6798] CPU: 1 PID: 6798 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 57.870490][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.880518][ T6798] Call Trace: [ 57.883800][ T6798] dump_stack+0x188/0x20d [ 57.888128][ T6798] debug_smp_processor_id.cold+0x88/0x9b [ 57.893738][ T6798] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.898830][ T6798] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.905823][ T6798] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.911519][ T6798] ext4_ext_map_blocks+0x2044/0x3410 [ 57.916794][ T6798] ? ext4_ext_release+0x10/0x10 [ 57.921641][ T6798] ? __down_timeout+0x2d0/0x2d0 [ 57.926465][ T6798] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.931901][ T6798] ext4_map_blocks+0x4cb/0x1640 [ 57.936734][ T6798] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.941905][ T6798] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.947425][ T6798] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.953398][ T6798] ? prandom_u32_state+0xe/0x170 [ 57.958312][ T6798] ? __brelse+0x84/0xa0 [ 57.962441][ T6798] ? __ext4_new_inode+0x144/0x57c0 [ 57.967529][ T6798] ext4_getblk+0xad/0x520 [ 57.971847][ T6798] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 57.977558][ T6798] ? ext4_free_inode+0x17e0/0x17e0 [ 57.982657][ T6798] ext4_bread+0x7c/0x380 [ 57.986874][ T6798] ? ext4_getblk+0x520/0x520 [ 57.991437][ T6798] ? dqget+0xff0/0xff0 [ 57.995497][ T6798] ext4_append+0x153/0x360 [ 57.999888][ T6798] ext4_mkdir+0x5e0/0xdf0 [ 58.004194][ T6798] ? ext4_rmdir+0xde0/0xde0 [ 58.008673][ T6798] ? security_inode_permission+0xc4/0xf0 [ 58.014297][ T6798] vfs_mkdir+0x419/0x690 [ 58.018512][ T6798] do_mkdirat+0x21e/0x280 [ 58.022840][ T6798] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.027664][ T6798] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.033617][ T6798] ? do_syscall_64+0x21/0x7d0 [ 58.038272][ T6798] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.044230][ T6798] do_syscall_64+0xf6/0x7d0 [ 58.048713][ T6798] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.054578][ T6798] RIP: 0033:0x4b02a0 [ 58.058448][ T6798] 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 [ 58.078028][ T6798] RSP: 002b:000000c0000e94b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.086410][ T6798] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 58.094355][ T6798] RDX: 00000000000001c0 RSI: 000000c00009ece0 RDI: ffffffffffffff9c [ 58.102308][ T6798] RBP: 000000c0000e9510 R08: 0000000000000000 R09: 0000000000000000 [ 58.110266][ T6798] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.118210][ T6798] R13: 0000000000000068 R14: 0000000000000067 R15: 0000000000000100 [ 58.134964][ T6814] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6814 [ 58.144447][ T6814] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.150447][ T6814] CPU: 1 PID: 6814 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.158666][ T6814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.168697][ T6814] Call Trace: [ 58.171966][ T6814] dump_stack+0x188/0x20d [ 58.176280][ T6814] debug_smp_processor_id.cold+0x88/0x9b [ 58.181913][ T6814] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.187007][ T6814] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.192548][ T6814] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.198260][ T6814] ext4_ext_map_blocks+0x2044/0x3410 [ 58.203797][ T6814] ? ext4_ext_release+0x10/0x10 [ 58.208641][ T6814] ? __down_timeout+0x2d0/0x2d0 [ 58.213475][ T6814] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.218910][ T6814] ext4_map_blocks+0x4cb/0x1640 [ 58.223759][ T6814] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.228945][ T6814] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.234467][ T6814] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.240419][ T6814] ? prandom_u32_state+0xe/0x170 [ 58.245345][ T6814] ? __brelse+0x84/0xa0 [ 58.249503][ T6814] ? __ext4_new_inode+0x144/0x57c0 [ 58.254594][ T6814] ext4_getblk+0xad/0x520 [ 58.258904][ T6814] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.264635][ T6814] ? ext4_free_inode+0x17e0/0x17e0 [ 58.269809][ T6814] ext4_bread+0x7c/0x380 [ 58.274196][ T6814] ? ext4_getblk+0x520/0x520 [ 58.278836][ T6814] ? dqget+0xff0/0xff0 [ 58.282912][ T6814] ext4_append+0x153/0x360 [ 58.287346][ T6814] ext4_mkdir+0x5e0/0xdf0 [ 58.291661][ T6814] ? ext4_rmdir+0xde0/0xde0 [ 58.296145][ T6814] ? security_inode_permission+0xc4/0xf0 [ 58.301761][ T6814] vfs_mkdir+0x419/0x690 [ 58.306127][ T6814] do_mkdirat+0x21e/0x280 [ 58.310450][ T6814] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.315280][ T6814] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.321244][ T6814] ? do_syscall_64+0x21/0x7d0 [ 58.325903][ T6814] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.331869][ T6814] do_syscall_64+0xf6/0x7d0 [ 58.336356][ T6814] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.342243][ T6814] RIP: 0033:0x45bee7 [ 58.346113][ T6814] 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 [ 58.365707][ T6814] RSP: 002b:00007ffe9211a0d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.374109][ T6814] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.382072][ T6814] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe9211a2b0 [ 58.390019][ T6814] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000030c0 [ 58.397978][ T6814] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.405924][ T6814] R13: 00007ffe9211a2b0 R14: 8421084210842109 R15: 00007ffe9211a2bc [ 58.486446][ T6815] IPVS: ftp: loaded support on port[0] = 21 [ 58.522518][ T6815] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6815 [ 58.532181][ T6815] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.538157][ T6815] CPU: 0 PID: 6815 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.546395][ T6815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.556429][ T6815] Call Trace: [ 58.559710][ T6815] dump_stack+0x188/0x20d [ 58.564019][ T6815] debug_smp_processor_id.cold+0x88/0x9b [ 58.569629][ T6815] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.574737][ T6815] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.580172][ T6815] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.585875][ T6815] ext4_ext_map_blocks+0x2044/0x3410 [ 58.591142][ T6815] ? ext4_ext_release+0x10/0x10 [ 58.595979][ T6815] ? __down_timeout+0x2d0/0x2d0 [ 58.600808][ T6815] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.606268][ T6815] ext4_map_blocks+0x4cb/0x1640 [ 58.611115][ T6815] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.616290][ T6815] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.621899][ T6815] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.627857][ T6815] ? prandom_u32_state+0xe/0x170 [ 58.632796][ T6815] ? __brelse+0x84/0xa0 [ 58.636931][ T6815] ? __ext4_new_inode+0x144/0x57c0 [ 58.642035][ T6815] ext4_getblk+0xad/0x520 [ 58.646344][ T6815] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.652059][ T6815] ? ext4_free_inode+0x17e0/0x17e0 [ 58.657164][ T6815] ext4_bread+0x7c/0x380 [ 58.661388][ T6815] ? ext4_getblk+0x520/0x520 [ 58.665968][ T6815] ? dqget+0xff0/0xff0 [ 58.670019][ T6815] ext4_append+0x153/0x360 [ 58.674413][ T6815] ext4_mkdir+0x5e0/0xdf0 [ 58.678739][ T6815] ? ext4_rmdir+0xde0/0xde0 [ 58.683238][ T6815] ? security_inode_permission+0xc4/0xf0 [ 58.688860][ T6815] vfs_mkdir+0x419/0x690 [ 58.693096][ T6815] do_mkdirat+0x21e/0x280 [ 58.697424][ T6815] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.702256][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.708214][ T6815] ? do_syscall_64+0x21/0x7d0 [ 58.712872][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.718834][ T6815] do_syscall_64+0xf6/0x7d0 [ 58.723336][ T6815] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.729214][ T6815] RIP: 0033:0x45bee7 [ 58.734573][ T6815] 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 [ 58.754154][ T6815] RSP: 002b:00007ffe92119fc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 58.762539][ T6815] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 58.770499][ T6815] RDX: 00007ffe9211a013 RSI: 00000000000001ff RDI: 00007ffe9211a010 [ 58.778463][ T6815] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 58.786414][ T6815] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 58.794359][ T6815] R13: 00007ffe9211a000 R14: 0000000000000000 R15: 00007ffe9211a010 [ 58.845101][ T6815] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6815 [ 58.854563][ T6815] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.860641][ T6815] CPU: 1 PID: 6815 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.868875][ T6815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.878929][ T6815] Call Trace: [ 58.882225][ T6815] dump_stack+0x188/0x20d [ 58.886566][ T6815] debug_smp_processor_id.cold+0x88/0x9b [ 58.892200][ T6815] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.897335][ T6815] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.902797][ T6815] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.908511][ T6815] ext4_ext_map_blocks+0x2044/0x3410 [ 58.913878][ T6815] ? ext4_ext_release+0x10/0x10 [ 58.918829][ T6815] ? __down_timeout+0x2d0/0x2d0 [ 58.923663][ T6815] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.929124][ T6815] ext4_map_blocks+0x4cb/0x1640 [ 58.933994][ T6815] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.939184][ T6815] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.944709][ T6815] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.950664][ T6815] ? prandom_u32_state+0xe/0x170 [ 58.955595][ T6815] ? __brelse+0x84/0xa0 [ 58.959729][ T6815] ? __ext4_new_inode+0x144/0x57c0 [ 58.964821][ T6815] ext4_getblk+0xad/0x520 [ 58.969128][ T6815] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.974840][ T6815] ? ext4_free_inode+0x17e0/0x17e0 [ 58.979946][ T6815] ext4_bread+0x7c/0x380 [ 58.984168][ T6815] ? ext4_getblk+0x520/0x520 [ 58.988748][ T6815] ? dqget+0xff0/0xff0 [ 58.992797][ T6815] ext4_append+0x153/0x360 [ 58.997203][ T6815] ext4_mkdir+0x5e0/0xdf0 [ 59.001515][ T6815] ? ext4_rmdir+0xde0/0xde0 [ 59.006000][ T6815] ? security_inode_permission+0xc4/0xf0 [ 59.011639][ T6815] vfs_mkdir+0x419/0x690 [ 59.015862][ T6815] do_mkdirat+0x21e/0x280 [ 59.020185][ T6815] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.025031][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.030988][ T6815] ? do_syscall_64+0x21/0x7d0 [ 59.035656][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.041614][ T6815] do_syscall_64+0xf6/0x7d0 [ 59.046114][ T6815] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.051983][ T6815] RIP: 0033:0x45bee7 [ 59.055892][ T6815] 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 [ 59.075484][ T6815] RSP: 002b:00007ffe92119fc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.083880][ T6815] RAX: ffffffffffffffda RBX: 000000000000e5dc RCX: 000000000045bee7 2020/06/11 05:28:59 building call list... [ 59.091843][ T6815] RDX: 00007ffe9211a013 RSI: 00000000000001ff RDI: 00007ffe9211a010 [ 59.099811][ T6815] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.107786][ T6815] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.115744][ T6815] R13: 00007ffe9211a000 R14: 000000000000e5cc R15: 00007ffe9211a010 [ 59.465680][ T25] tipc: TX() has been purged, node left! [ 60.272958][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.282185][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.288188][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.296068][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.306112][ T1155] Call Trace: [ 60.309408][ T1155] dump_stack+0x188/0x20d [ 60.313734][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.319446][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.324560][ T1155] ? __kmalloc+0x62f/0x7a0 [ 60.328982][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.334434][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.340152][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.345437][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.350299][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.355144][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.360649][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.365523][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.370722][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.376182][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.381721][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.387695][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.393154][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.398091][ T1155] ? mark_lock+0x30/0xdd0 [ 60.402429][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.408085][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.413711][ T1155] ? do_writepages+0xfa/0x2a0 [ 60.418386][ T1155] do_writepages+0xfa/0x2a0 [ 60.422892][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 60.428532][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 60.434332][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 60.439524][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 60.444372][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.450096][ T1155] ? collapse_file+0x3575/0x4300 [ 60.455041][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.461121][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.466323][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.472742][ T1155] collapse_file+0x357f/0x4300 [ 60.477522][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 60.482897][ T1155] ? khugepaged+0x24fa/0x3f80 [ 60.487601][ T1155] khugepaged+0x3049/0x3f80 [ 60.492138][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.497806][ T1155] ? lock_downgrade+0x840/0x840 [ 60.502664][ T1155] ? finish_wait+0x260/0x260 [ 60.507295][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.513105][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.519096][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 60.524127][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.529780][ T1155] kthread+0x388/0x470 [ 60.533859][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.539559][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.545260][ T1155] ret_from_fork+0x24/0x30 executing program [ 60.607051][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.616222][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.622117][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.630000][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.640058][ T1155] Call Trace: [ 60.643356][ T1155] dump_stack+0x188/0x20d [ 60.647694][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.653327][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.658458][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.663913][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.670067][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.675554][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.680422][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.685254][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.690713][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.695555][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.700731][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.706183][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.711708][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.717670][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.723129][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.728065][ T1155] ? mark_lock+0x30/0xdd0 [ 60.732382][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.738271][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.743904][ T1155] ? do_writepages+0xfa/0x2a0 [ 60.748645][ T1155] do_writepages+0xfa/0x2a0 [ 60.753130][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 60.758765][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 60.763782][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 60.768972][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 60.773801][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.779511][ T1155] ? collapse_file+0x3575/0x4300 [ 60.784424][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.790486][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.795679][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.801645][ T1155] collapse_file+0x357f/0x4300 [ 60.806396][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 60.811745][ T1155] ? khugepaged+0x24fa/0x3f80 [ 60.816428][ T1155] khugepaged+0x3049/0x3f80 [ 60.820939][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.826562][ T1155] ? lock_downgrade+0x840/0x840 [ 60.831401][ T1155] ? finish_wait+0x260/0x260 [ 60.835969][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.841749][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.847709][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 60.852717][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.858326][ T1155] kthread+0x388/0x470 [ 60.862371][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.868078][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.873774][ T1155] ret_from_fork+0x24/0x30 [ 60.918483][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.927621][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.933530][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.941406][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.951810][ T1155] Call Trace: [ 60.951840][ T1155] dump_stack+0x188/0x20d [ 60.959449][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.959467][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.970204][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.975672][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.981821][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.987111][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.991972][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.996818][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.002279][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.007131][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.012320][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.017775][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.023317][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.029289][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.034752][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.039692][ T1155] ? mark_lock+0x30/0xdd0 [ 61.044062][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.049735][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.055379][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.060049][ T1155] do_writepages+0xfa/0x2a0 [ 61.064552][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.070178][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.075198][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.080392][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.085269][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.090983][ T1155] ? collapse_file+0x3575/0x4300 [ 61.095919][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.102096][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.107293][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.113324][ T1155] collapse_file+0x357f/0x4300 [ 61.118101][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.123481][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.128174][ T1155] khugepaged+0x3049/0x3f80 [ 61.132703][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.138329][ T1155] ? lock_downgrade+0x840/0x840 [ 61.143175][ T1155] ? finish_wait+0x260/0x260 [ 61.147774][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.153586][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.159565][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.164583][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.170219][ T1155] kthread+0x388/0x470 [ 61.174282][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.179998][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.185714][ T1155] ret_from_fork+0x24/0x30 [ 61.394018][ T6797] can: request_module (can-proto-0) failed. [ 62.058940][ T6797] can: request_module (can-proto-0) failed. [ 62.070346][ T6797] can: request_module (can-proto-0) failed.