[ 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. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 53.097061][ T6765] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6765 [ 53.106703][ T6765] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 53.113075][ T6765] CPU: 0 PID: 6765 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 53.121355][ T6765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.131388][ T6765] Call Trace: [ 53.134669][ T6765] dump_stack+0x188/0x20d [ 53.138978][ T6765] debug_smp_processor_id.cold+0x88/0x9b [ 53.144604][ T6765] ext4_mb_new_blocks+0xa77/0x3b30 [ 53.149695][ T6765] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.155142][ T6765] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.160839][ T6765] ext4_ext_map_blocks+0x2044/0x3410 [ 53.166106][ T6765] ? ext4_ext_release+0x10/0x10 [ 53.170953][ T6765] ? __down_timeout+0x2d0/0x2d0 [ 53.175795][ T6765] ? ext4_es_lookup_extent+0x41d/0xd30 [ 53.181240][ T6765] ext4_map_blocks+0x4cb/0x1640 [ 53.186069][ T6765] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.191239][ T6765] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.196814][ T6765] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.202776][ T6765] ? prandom_u32_state+0xe/0x170 [ 53.207691][ T6765] ? __brelse+0x84/0xa0 [ 53.211829][ T6765] ? __ext4_new_inode+0x144/0x57c0 [ 53.216944][ T6765] ext4_getblk+0xad/0x520 [ 53.221338][ T6765] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.227035][ T6765] ? ext4_free_inode+0x17e0/0x17e0 [ 53.232397][ T6765] ext4_bread+0x7c/0x380 [ 53.236617][ T6765] ? ext4_getblk+0x520/0x520 [ 53.241180][ T6765] ? dqget+0xff0/0xff0 [ 53.245241][ T6765] ext4_append+0x153/0x360 [ 53.249643][ T6765] ext4_mkdir+0x5e0/0xdf0 [ 53.253965][ T6765] ? ext4_rmdir+0xde0/0xde0 [ 53.258463][ T6765] ? security_inode_permission+0xc4/0xf0 [ 53.264074][ T6765] vfs_mkdir+0x419/0x690 [ 53.268292][ T6765] do_mkdirat+0x21e/0x280 [ 53.272598][ T6765] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.277436][ T6765] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.283401][ T6765] ? do_syscall_64+0x21/0x7d0 [ 53.288053][ T6765] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.294026][ T6765] do_syscall_64+0xf6/0x7d0 [ 53.298508][ T6765] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.304507][ T6765] RIP: 0033:0x7f7673df9687 [ 53.308896][ T6765] 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 [ 53.328478][ T6765] RSP: 002b:00007ffd3d4348f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.336870][ T6765] RAX: ffffffffffffffda RBX: 000056468ec44985 RCX: 00007f7673df9687 [ 53.344832][ T6765] RDX: 00007ffd3d4347c0 RSI: 00000000000001ed RDI: 000056468ec44985 [ 53.352781][ T6765] RBP: 00007f7673df9680 R08: 0000000000000100 R09: 0000000000000000 [ 53.360725][ T6765] R10: 000056468ec44980 R11: 0000000000000246 R12: 00000000000001ed [ 53.368672][ T6765] R13: 00007ffd3d434a80 R14: 0000000000000000 R15: 0000000000000000 [ 56.230785][ T6738] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/6738 [ 56.240049][ T6738] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 56.246088][ T6738] CPU: 1 PID: 6738 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 56.254156][ T6738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.264219][ T6738] Workqueue: writeback wb_workfn (flush-8:0) [ 56.270191][ T6738] Call Trace: [ 56.273474][ T6738] dump_stack+0x188/0x20d [ 56.277796][ T6738] debug_smp_processor_id.cold+0x88/0x9b [ 56.283412][ T6738] ext4_mb_new_blocks+0xa77/0x3b30 [ 56.288502][ T6738] ? __kmalloc+0x62f/0x7a0 [ 56.292902][ T6738] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.298337][ T6738] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.304044][ T6738] ext4_ext_map_blocks+0x2044/0x3410 [ 56.309309][ T6738] ? ext4_ext_release+0x10/0x10 [ 56.314154][ T6738] ? __down_timeout+0x2d0/0x2d0 [ 56.318991][ T6738] ? ext4_es_lookup_extent+0x41d/0xd30 [ 56.324431][ T6738] ? debug_smp_processor_id+0x2f/0x185 [ 56.329878][ T6738] ext4_map_blocks+0x4cb/0x1640 [ 56.334734][ T6738] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.339919][ T6738] ? debug_smp_processor_id+0x2f/0x185 [ 56.345372][ T6738] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.350893][ T6738] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.356848][ T6738] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.362293][ T6738] ext4_writepages+0x1ab7/0x3400 [ 56.367218][ T6738] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.372823][ T6738] ? __lock_acquire+0x2224/0x48a0 [ 56.377842][ T6738] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.383814][ T6738] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.389943][ T6738] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.395552][ T6738] ? do_writepages+0xfa/0x2a0 [ 56.400205][ T6738] do_writepages+0xfa/0x2a0 [ 56.404701][ T6738] ? page_writeback_cpu_online+0x10/0x10 [ 56.410308][ T6738] ? debug_smp_processor_id+0x2f/0x185 [ 56.415761][ T6738] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.421295][ T6738] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.427249][ T6738] ? lock_downgrade+0x840/0x840 [ 56.432079][ T6738] __writeback_single_inode+0x12a/0x1410 [ 56.437697][ T6738] ? _raw_spin_unlock+0x24/0x40 [ 56.442529][ T6738] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.448668][ T6738] writeback_sb_inodes+0x515/0xdd0 [ 56.453777][ T6738] ? __writeback_single_inode+0x1410/0x1410 [ 56.459669][ T6738] __writeback_inodes_wb+0xc3/0x250 [ 56.464846][ T6738] wb_writeback+0x910/0xd90 [ 56.469330][ T6738] ? print_usage_bug+0x240/0x240 [ 56.474246][ T6738] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.480549][ T6738] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.486420][ T6738] ? cpumask_next+0x3c/0x40 [ 56.490926][ T6738] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.496105][ T6738] wb_workfn+0xadf/0x10d0 [ 56.500434][ T6738] ? inode_wait_for_writeback+0x30/0x30 [ 56.505965][ T6738] ? debug_smp_processor_id+0x2f/0x185 [ 56.511403][ T6738] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.516926][ T6738] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.522891][ T6738] process_one_work+0x965/0x16a0 [ 56.527821][ T6738] ? lock_release+0x800/0x800 [ 56.532484][ T6738] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.537833][ T6738] ? rwlock_bug.part.0+0x90/0x90 [ 56.542768][ T6738] worker_thread+0x96/0xe10 [ 56.547266][ T6738] ? process_one_work+0x16a0/0x16a0 [ 56.553501][ T6738] kthread+0x388/0x470 [ 56.557550][ T6738] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.563256][ T6738] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.568973][ T6738] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts. 2020/06/14 11:22:18 fuzzer started 2020/06/14 11:22:18 connecting to host at 10.128.0.26:40011 2020/06/14 11:22:18 checking machine... 2020/06/14 11:22:18 checking revisions... 2020/06/14 11:22:18 testing simple program... [ 58.341388][ T6777] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6777 [ 58.350509][ T6777] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.356406][ T6777] CPU: 1 PID: 6777 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.364268][ T6777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.374296][ T6777] Call Trace: [ 58.377570][ T6777] dump_stack+0x188/0x20d [ 58.381884][ T6777] debug_smp_processor_id.cold+0x88/0x9b [ 58.387502][ T6777] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.392598][ T6777] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.398033][ T6777] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.403733][ T6777] ext4_ext_map_blocks+0x2044/0x3410 [ 58.409013][ T6777] ? ext4_ext_release+0x10/0x10 [ 58.413874][ T6777] ? __down_timeout+0x2d0/0x2d0 [ 58.418728][ T6777] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.424283][ T6777] ext4_map_blocks+0x4cb/0x1640 [ 58.429145][ T6777] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.434346][ T6777] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.440851][ T6777] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.446833][ T6777] ? prandom_u32_state+0xe/0x170 [ 58.451769][ T6777] ? __brelse+0x84/0xa0 [ 58.455922][ T6777] ? __ext4_new_inode+0x144/0x57c0 [ 58.461061][ T6777] ext4_getblk+0xad/0x520 [ 58.465388][ T6777] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.471091][ T6777] ? ext4_free_inode+0x17e0/0x17e0 [ 58.476192][ T6777] ext4_bread+0x7c/0x380 [ 58.480438][ T6777] ? ext4_getblk+0x520/0x520 [ 58.485028][ T6777] ? dqget+0xff0/0xff0 [ 58.489083][ T6777] ext4_append+0x153/0x360 [ 58.493499][ T6777] ext4_mkdir+0x5e0/0xdf0 [ 58.497813][ T6777] ? ext4_rmdir+0xde0/0xde0 [ 58.502303][ T6777] ? security_inode_permission+0xc4/0xf0 [ 58.507919][ T6777] vfs_mkdir+0x419/0x690 [ 58.512176][ T6777] do_mkdirat+0x21e/0x280 [ 58.516518][ T6777] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.521369][ T6777] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.527345][ T6777] ? do_syscall_64+0x21/0x7d0 [ 58.532003][ T6777] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.537963][ T6777] do_syscall_64+0xf6/0x7d0 [ 58.542472][ T6777] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.548455][ T6777] RIP: 0033:0x4b02a0 [ 58.552421][ T6777] 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 [ 58.572006][ T6777] RSP: 002b:000000c0000df4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.580394][ T6777] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 58.588870][ T6777] RDX: 00000000000001c0 RSI: 000000c000026b80 RDI: ffffffffffffff9c [ 58.596840][ T6777] RBP: 000000c0000df510 R08: 0000000000000000 R09: 0000000000000000 [ 58.604802][ T6777] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.612777][ T6777] R13: 000000000000005d R14: 000000000000005c R15: 0000000000000100 [ 58.631633][ T6791] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6791 [ 58.641102][ T6791] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.647002][ T6791] CPU: 1 PID: 6791 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.655228][ T6791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.665347][ T6791] Call Trace: [ 58.668623][ T6791] dump_stack+0x188/0x20d [ 58.672939][ T6791] debug_smp_processor_id.cold+0x88/0x9b [ 58.678546][ T6791] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.683658][ T6791] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.689110][ T6791] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.694810][ T6791] ext4_ext_map_blocks+0x2044/0x3410 [ 58.700087][ T6791] ? ext4_ext_release+0x10/0x10 [ 58.704922][ T6791] ? __down_timeout+0x2d0/0x2d0 [ 58.709747][ T6791] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.715184][ T6791] ext4_map_blocks+0x4cb/0x1640 [ 58.720033][ T6791] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.725215][ T6791] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.730738][ T6791] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.736790][ T6791] ? prandom_u32_state+0xe/0x170 [ 58.741718][ T6791] ? __brelse+0x84/0xa0 [ 58.745851][ T6791] ? __ext4_new_inode+0x144/0x57c0 [ 58.750942][ T6791] ext4_getblk+0xad/0x520 [ 58.755258][ T6791] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.760955][ T6791] ? ext4_free_inode+0x17e0/0x17e0 [ 58.766650][ T6791] ext4_bread+0x7c/0x380 [ 58.770870][ T6791] ? ext4_getblk+0x520/0x520 [ 58.775433][ T6791] ? dqget+0xff0/0xff0 [ 58.779493][ T6791] ext4_append+0x153/0x360 [ 58.784249][ T6791] ext4_mkdir+0x5e0/0xdf0 [ 58.788555][ T6791] ? ext4_rmdir+0xde0/0xde0 [ 58.793050][ T6791] ? security_inode_permission+0xc4/0xf0 [ 58.798672][ T6791] vfs_mkdir+0x419/0x690 [ 58.802904][ T6791] do_mkdirat+0x21e/0x280 [ 58.807212][ T6791] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.812038][ T6791] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.818001][ T6791] ? do_syscall_64+0x21/0x7d0 [ 58.822662][ T6791] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.828626][ T6791] do_syscall_64+0xf6/0x7d0 [ 58.833112][ T6791] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.838987][ T6791] RIP: 0033:0x45bee7 [ 58.842912][ T6791] 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 [ 58.862502][ T6791] RSP: 002b:00007fff90b9df48 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.870904][ T6791] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.878867][ T6791] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007fff90b9e120 [ 58.886825][ T6791] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000027c0 [ 58.894858][ T6791] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.902805][ T6791] R13: 00007fff90b9e120 R14: 8421084210842109 R15: 00007fff90b9e12c [ 58.986333][ T6792] IPVS: ftp: loaded support on port[0] = 21 [ 59.023719][ T6792] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6792 [ 59.033253][ T6792] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.039231][ T6792] CPU: 0 PID: 6792 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.047448][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.057521][ T6792] Call Trace: [ 59.060795][ T6792] dump_stack+0x188/0x20d [ 59.065110][ T6792] debug_smp_processor_id.cold+0x88/0x9b [ 59.070761][ T6792] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.075854][ T6792] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.081327][ T6792] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.087024][ T6792] ext4_ext_map_blocks+0x2044/0x3410 [ 59.092291][ T6792] ? ext4_ext_release+0x10/0x10 [ 59.097127][ T6792] ? __down_timeout+0x2d0/0x2d0 [ 59.101952][ T6792] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.107388][ T6792] ext4_map_blocks+0x4cb/0x1640 [ 59.112305][ T6792] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.117476][ T6792] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.123008][ T6792] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.128975][ T6792] ? prandom_u32_state+0xe/0x170 [ 59.133888][ T6792] ? __brelse+0x84/0xa0 [ 59.138019][ T6792] ? __ext4_new_inode+0x144/0x57c0 [ 59.143117][ T6792] ext4_getblk+0xad/0x520 [ 59.147431][ T6792] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.153141][ T6792] ? ext4_free_inode+0x17e0/0x17e0 [ 59.158227][ T6792] ext4_bread+0x7c/0x380 [ 59.162464][ T6792] ? ext4_getblk+0x520/0x520 [ 59.167028][ T6792] ? dqget+0xff0/0xff0 [ 59.171076][ T6792] ext4_append+0x153/0x360 [ 59.175471][ T6792] ext4_mkdir+0x5e0/0xdf0 [ 59.179779][ T6792] ? ext4_rmdir+0xde0/0xde0 [ 59.184256][ T6792] ? security_inode_permission+0xc4/0xf0 [ 59.189869][ T6792] vfs_mkdir+0x419/0x690 [ 59.194104][ T6792] do_mkdirat+0x21e/0x280 [ 59.198412][ T6792] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.203254][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.209207][ T6792] ? do_syscall_64+0x21/0x7d0 [ 59.213874][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.219843][ T6792] do_syscall_64+0xf6/0x7d0 [ 59.224324][ T6792] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.230201][ T6792] RIP: 0033:0x45bee7 [ 59.234085][ T6792] 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 [ 59.253778][ T6792] RSP: 002b:00007fff90b9de38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.262162][ T6792] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.270117][ T6792] RDX: 00007fff90b9de83 RSI: 00000000000001ff RDI: 00007fff90b9de80 [ 59.278077][ T6792] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.286120][ T6792] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.294066][ T6792] R13: 00007fff90b9de70 R14: 0000000000000000 R15: 00007fff90b9de80 [ 59.346013][ T6792] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6792 [ 59.355542][ T6792] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.361530][ T6792] CPU: 1 PID: 6792 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.369760][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.379810][ T6792] Call Trace: [ 59.383104][ T6792] dump_stack+0x188/0x20d [ 59.387440][ T6792] debug_smp_processor_id.cold+0x88/0x9b [ 59.393072][ T6792] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.398194][ T6792] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.403654][ T6792] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.409495][ T6792] ext4_ext_map_blocks+0x2044/0x3410 [ 59.414826][ T6792] ? ext4_ext_release+0x10/0x10 [ 59.419769][ T6792] ? __down_timeout+0x2d0/0x2d0 [ 59.424597][ T6792] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.430037][ T6792] ext4_map_blocks+0x4cb/0x1640 [ 59.434872][ T6792] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.440236][ T6792] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.445761][ T6792] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.451740][ T6792] ? prandom_u32_state+0xe/0x170 [ 59.456660][ T6792] ? __brelse+0x84/0xa0 [ 59.460806][ T6792] ? __ext4_new_inode+0x144/0x57c0 [ 59.465899][ T6792] ext4_getblk+0xad/0x520 [ 59.470235][ T6792] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.475943][ T6792] ? ext4_free_inode+0x17e0/0x17e0 [ 59.481032][ T6792] ext4_bread+0x7c/0x380 [ 59.485246][ T6792] ? ext4_getblk+0x520/0x520 [ 59.489838][ T6792] ? dqget+0xff0/0xff0 [ 59.493896][ T6792] ext4_append+0x153/0x360 [ 59.498309][ T6792] ext4_mkdir+0x5e0/0xdf0 [ 59.502620][ T6792] ? ext4_rmdir+0xde0/0xde0 [ 59.507112][ T6792] ? security_inode_permission+0xc4/0xf0 [ 59.512734][ T6792] vfs_mkdir+0x419/0x690 [ 59.516964][ T6792] do_mkdirat+0x21e/0x280 [ 59.521269][ T6792] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.526094][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.532060][ T6792] ? do_syscall_64+0x21/0x7d0 [ 59.536712][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.542680][ T6792] do_syscall_64+0xf6/0x7d0 [ 59.547164][ T6792] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.553031][ T6792] RIP: 0033:0x45bee7 [ 59.556900][ T6792] 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 [ 59.576489][ T6792] RSP: 002b:00007fff90b9de38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.584872][ T6792] RAX: ffffffffffffffda RBX: 000000000000e7c6 RCX: 000000000045bee7 2020/06/14 11:22:20 building call list... [ 59.592823][ T6792] RDX: 00007fff90b9de83 RSI: 00000000000001ff RDI: 00007fff90b9de80 [ 59.600771][ T6792] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.608717][ T6792] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.616663][ T6792] R13: 00007fff90b9de70 R14: 000000000000e7b9 R15: 00007fff90b9de80 [ 59.909199][ T6738] tipc: TX() has been purged, node left! [ 60.235385][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.244646][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.250615][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.258502][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.268545][ T1154] Call Trace: [ 60.271833][ T1154] dump_stack+0x188/0x20d [ 60.276158][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 60.281783][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.286885][ T1154] ? __kmalloc+0x62f/0x7a0 [ 60.291469][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.296926][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.304412][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 60.309706][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.314581][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 60.319428][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.324891][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 60.329762][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.334962][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 60.340421][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.345961][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.351936][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.357413][ T1154] ext4_writepages+0x1ab7/0x3400 [ 60.362351][ T1154] ? mark_lock+0x30/0xdd0 [ 60.366691][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.372358][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.377984][ T1154] ? do_writepages+0xfa/0x2a0 [ 60.382662][ T1154] do_writepages+0xfa/0x2a0 [ 60.387166][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 60.392802][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 60.397821][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 60.403101][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 60.407951][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.413666][ T1154] ? collapse_file+0x3575/0x4300 [ 60.418601][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.424678][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.429871][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.435851][ T1154] collapse_file+0x357f/0x4300 [ 60.440651][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 60.446016][ T1154] ? khugepaged+0x24fa/0x3f80 [ 60.450707][ T1154] khugepaged+0x3049/0x3f80 [ 60.455231][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.460864][ T1154] ? lock_downgrade+0x840/0x840 [ 60.465708][ T1154] ? finish_wait+0x260/0x260 [ 60.470306][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.476194][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.482177][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 60.487195][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.492824][ T1154] kthread+0x388/0x470 [ 60.496892][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.502602][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.508322][ T1154] ret_from_fork+0x24/0x30 [ 60.577514][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.586678][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.592680][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.600561][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.611651][ T1154] Call Trace: [ 60.614941][ T1154] dump_stack+0x188/0x20d [ 60.619268][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 60.624894][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.630009][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.635490][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.641651][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 60.646981][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.651848][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 60.656698][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.662259][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 60.667112][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.672337][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 60.677804][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.683349][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.689332][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.694798][ T1154] ext4_writepages+0x1ab7/0x3400 [ 60.699745][ T1154] ? mark_lock+0x30/0xdd0 [ 60.704094][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.709750][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.715381][ T1154] ? do_writepages+0xfa/0x2a0 [ 60.720107][ T1154] do_writepages+0xfa/0x2a0 [ 60.724617][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 60.730307][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 60.735329][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 60.740529][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 60.745381][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.751100][ T1154] ? collapse_file+0x3575/0x4300 [ 60.756025][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.762089][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.767415][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.773518][ T1154] collapse_file+0x357f/0x4300 [ 60.778299][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 60.783658][ T1154] ? khugepaged+0x24fa/0x3f80 [ 60.788338][ T1154] khugepaged+0x3049/0x3f80 [ 60.792876][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.798499][ T1154] ? lock_downgrade+0x840/0x840 [ 60.803347][ T1154] ? finish_wait+0x260/0x260 [ 60.807939][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.813748][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.819731][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 60.824815][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.830489][ T1154] kthread+0x388/0x470 [ 60.834561][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.840275][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.846007][ T1154] ret_from_fork+0x24/0x30 [ 60.912917][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.922079][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.927973][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.935852][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.945897][ T1154] Call Trace: [ 60.949186][ T1154] dump_stack+0x188/0x20d [ 60.953541][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 60.959173][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.964290][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.969749][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.975899][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 60.981211][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.986073][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 60.990931][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.996390][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 61.001243][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.006870][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 61.012327][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.017868][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.023840][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.029317][ T1154] ext4_writepages+0x1ab7/0x3400 [ 61.034252][ T1154] ? mark_lock+0x30/0xdd0 [ 61.038676][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.044436][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.050070][ T1154] ? do_writepages+0xfa/0x2a0 [ 61.054739][ T1154] do_writepages+0xfa/0x2a0 [ 61.059244][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 61.064909][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 61.069929][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 61.075126][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 61.079978][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.085700][ T1154] ? collapse_file+0x3575/0x4300 [ 61.090636][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.096727][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.101921][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.107899][ T1154] collapse_file+0x357f/0x4300 [ 61.112686][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 61.118145][ T1154] ? khugepaged+0x24fa/0x3f80 [ 61.122835][ T1154] khugepaged+0x3049/0x3f80 [ 61.127356][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.133002][ T1154] ? lock_downgrade+0x840/0x840 [ 61.137852][ T1154] ? finish_wait+0x260/0x260 [ 61.142439][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.148238][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.154220][ T1154] ? __kthread_parkme+0x13f/0x1e0 executing program [ 61.159239][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.164864][ T1154] kthread+0x388/0x470 [ 61.168925][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.174669][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.183336][ T1154] ret_from_fork+0x24/0x30 [ 61.536029][ T6776] can: request_module (can-proto-0) failed. [ 62.713251][ T6776] can: request_module (can-proto-0) failed. [ 62.724808][ T6776] can: request_module (can-proto-0) failed.