Warning: Permanently added '10.128.0.210' (ECDSA) to the list of known hosts. 2020/06/02 11:03:58 fuzzer started 2020/06/02 11:03:58 connecting to host at 10.128.0.26:38327 2020/06/02 11:03:58 checking machine... 2020/06/02 11:03:58 checking revisions... 2020/06/02 11:03:58 testing simple program... syzkaller login: [ 64.051499][ T6927] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6927 [ 64.060718][ T6927] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.067604][ T6927] CPU: 1 PID: 6927 Comm: syz-fuzzer Not tainted 5.7.0-next-20200602-syzkaller #0 [ 64.076859][ T6927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.086922][ T6927] Call Trace: [ 64.090219][ T6927] dump_stack+0x18f/0x20d [ 64.094537][ T6927] check_preemption_disabled+0x20d/0x220 [ 64.100152][ T6927] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.105251][ T6927] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.111032][ T6927] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.117435][ T6927] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.122877][ T6927] ? ext4_ext_release+0x10/0x10 [ 64.127735][ T6927] ? down_write_killable+0x170/0x170 [ 64.133008][ T6927] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.138456][ T6927] ext4_map_blocks+0x4cb/0x1640 [ 64.143289][ T6927] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.148462][ T6927] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.153994][ T6927] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.159951][ T6927] ? prandom_u32_state+0xe/0x170 [ 64.164868][ T6927] ? __brelse+0x84/0xa0 [ 64.169003][ T6927] ? __ext4_new_inode+0x144/0x55e0 [ 64.174095][ T6927] ext4_getblk+0xad/0x520 [ 64.178420][ T6927] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 64.184138][ T6927] ? ext4_free_inode+0x1700/0x1700 [ 64.189239][ T6927] ext4_bread+0x7c/0x380 [ 64.193474][ T6927] ? ext4_getblk+0x520/0x520 [ 64.198051][ T6927] ? dquot_get_next_dqblk+0x180/0x180 [ 64.203478][ T6927] ext4_append+0x153/0x360 [ 64.207877][ T6927] ext4_mkdir+0x5e0/0xdf0 [ 64.212191][ T6927] ? ext4_rmdir+0xde0/0xde0 [ 64.216741][ T6927] ? security_inode_permission+0xc4/0xf0 [ 64.222360][ T6927] vfs_mkdir+0x419/0x690 [ 64.226591][ T6927] do_mkdirat+0x21e/0x280 [ 64.230954][ T6927] ? __ia32_sys_mknod+0xb0/0xb0 [ 64.235785][ T6927] ? do_syscall_64+0x1c/0xe0 [ 64.240469][ T6927] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.246427][ T6927] do_syscall_64+0x60/0xe0 [ 64.250869][ T6927] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.256738][ T6927] RIP: 0033:0x4b02a0 [ 64.260602][ T6927] Code: Bad RIP value. [ 64.264644][ T6927] RSP: 002b:000000c0000cf4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 64.273029][ T6927] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 64.280981][ T6927] RDX: 00000000000001c0 RSI: 000000c000116be0 RDI: ffffffffffffff9c [ 64.289026][ T6927] RBP: 000000c0000cf510 R08: 0000000000000000 R09: 0000000000000000 [ 64.296977][ T6927] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 64.304926][ T6927] R13: 0000000000000060 R14: 000000000000005f R15: 0000000000000100 [ 64.332204][ T6944] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6944 [ 64.341723][ T6944] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.347691][ T6944] CPU: 0 PID: 6944 Comm: syz-executor.0 Not tainted 5.7.0-next-20200602-syzkaller #0 [ 64.357155][ T6944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.367287][ T6944] Call Trace: [ 64.370608][ T6944] dump_stack+0x18f/0x20d [ 64.374942][ T6944] check_preemption_disabled+0x20d/0x220 [ 64.380742][ T6944] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.385845][ T6944] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.391285][ T6944] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.397002][ T6944] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.402363][ T6944] ? ext4_ext_release+0x10/0x10 [ 64.407202][ T6944] ? down_write_killable+0x170/0x170 [ 64.412463][ T6944] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.417907][ T6944] ext4_map_blocks+0x4cb/0x1640 [ 64.422743][ T6944] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.427921][ T6944] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.433531][ T6944] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.439483][ T6944] ? prandom_u32_state+0xe/0x170 [ 64.444471][ T6944] ? __brelse+0x84/0xa0 [ 64.448626][ T6944] ? __ext4_new_inode+0x144/0x55e0 [ 64.453998][ T6944] ext4_getblk+0xad/0x520 [ 64.458340][ T6944] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 64.464068][ T6944] ? ext4_free_inode+0x1700/0x1700 [ 64.469176][ T6944] ext4_bread+0x7c/0x380 [ 64.473419][ T6944] ? ext4_getblk+0x520/0x520 [ 64.478010][ T6944] ? dquot_get_next_dqblk+0x180/0x180 [ 64.483377][ T6944] ext4_append+0x153/0x360 [ 64.487797][ T6944] ext4_mkdir+0x5e0/0xdf0 [ 64.492110][ T6944] ? ext4_rmdir+0xde0/0xde0 [ 64.496610][ T6944] ? security_inode_permission+0xc4/0xf0 [ 64.502221][ T6944] vfs_mkdir+0x419/0x690 [ 64.506454][ T6944] do_mkdirat+0x21e/0x280 [ 64.510760][ T6944] ? __ia32_sys_mknod+0xb0/0xb0 [ 64.515592][ T6944] ? do_syscall_64+0x1c/0xe0 [ 64.520162][ T6944] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.526131][ T6944] do_syscall_64+0x60/0xe0 [ 64.530530][ T6944] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.536412][ T6944] RIP: 0033:0x45bee7 [ 64.541147][ T6944] Code: Bad RIP value. [ 64.545361][ T6944] RSP: 002b:00007ffef8838dd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 64.553768][ T6944] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 64.561725][ T6944] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffef8838fb0 [ 64.569686][ T6944] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003880 [ 64.577732][ T6944] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 64.585803][ T6944] R13: 00007ffef8838fb0 R14: 8421084210842109 R15: 00007ffef8838fbc [ 64.629159][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 64.638711][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.644765][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200602-syzkaller #0 [ 64.653899][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.663964][ T1155] Call Trace: [ 64.667269][ T1155] dump_stack+0x18f/0x20d [ 64.671618][ T1155] check_preemption_disabled+0x20d/0x220 [ 64.677274][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.682418][ T1155] ? ext4_find_extent+0x81a/0xad0 [ 64.687466][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.693227][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.699489][ T6945] IPVS: ftp: loaded support on port[0] = 21 [ 64.699663][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.710935][ T1155] ? ext4_ext_release+0x10/0x10 [ 64.715824][ T1155] ? down_write_killable+0x170/0x170 [ 64.721161][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.726676][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 64.731561][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.736790][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.742358][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.747260][ T6945] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6945 [ 64.748373][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.757792][ T6945] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.763205][ T1155] ext4_writepages+0x1ab5/0x3400 [ 64.774654][ T1155] ? mark_lock+0x20/0xdd0 [ 64.778995][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.784644][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.790390][ T1155] ? do_writepages+0xfa/0x2a0 [ 64.795056][ T1155] do_writepages+0xfa/0x2a0 [ 64.799637][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 64.805255][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 64.810281][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 64.815497][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 64.820337][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 64.826063][ T1155] ? collapse_file+0x35a2/0x4330 [ 64.830987][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 64.837045][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 64.842232][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.848221][ T1155] collapse_file+0x35ac/0x4330 [ 64.852984][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 64.859316][ T1155] ? khugepaged+0x2506/0x3fc0 [ 64.864634][ T1155] ? xas_find+0x31a/0x880 [ 64.868949][ T1155] ? check_preemption_disabled+0x38/0x220 [ 64.874662][ T1155] khugepaged+0x3041/0x3fc0 [ 64.879178][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.884812][ T1155] ? lock_downgrade+0x840/0x840 [ 64.889664][ T1155] ? finish_wait+0x260/0x260 [ 64.894245][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 64.900036][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.906021][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 64.911049][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.916683][ T1155] kthread+0x3b5/0x4a0 [ 64.920738][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.926476][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.932197][ T1155] ret_from_fork+0x1f/0x30 [ 64.936627][ T6945] CPU: 0 PID: 6945 Comm: syz-executor.0 Not tainted 5.7.0-next-20200602-syzkaller #0 [ 64.946093][ T6945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.956164][ T6945] Call Trace: [ 64.959469][ T6945] dump_stack+0x18f/0x20d [ 64.963838][ T6945] check_preemption_disabled+0x20d/0x220 [ 64.969511][ T6945] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.974775][ T6945] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.980362][ T6945] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.987137][ T6945] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.994538][ T6945] ? ext4_ext_release+0x10/0x10 [ 64.999427][ T6945] ? down_write_killable+0x170/0x170 [ 65.004820][ T6945] ? ext4_es_lookup_extent+0x41d/0xd10 [ 65.010411][ T6945] ext4_map_blocks+0x4cb/0x1640 [ 65.015288][ T6945] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.020937][ T6945] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.025450][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 65.026482][ T6945] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.026500][ T6945] ? prandom_u32_state+0xe/0x170 [ 65.026519][ T6945] ? __brelse+0x84/0xa0 [ 65.026538][ T6945] ? __ext4_new_inode+0x144/0x55e0 [ 65.026559][ T6945] ext4_getblk+0xad/0x520 [ 65.026582][ T6945] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 65.035842][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.041552][ T6945] ? ext4_free_inode+0x1700/0x1700 [ 65.077626][ T6945] ext4_bread+0x7c/0x380 [ 65.081861][ T6945] ? ext4_getblk+0x520/0x520 [ 65.086438][ T6945] ? dquot_get_next_dqblk+0x180/0x180 [ 65.091798][ T6945] ext4_append+0x153/0x360 [ 65.096206][ T6945] ext4_mkdir+0x5e0/0xdf0 [ 65.100540][ T6945] ? ext4_rmdir+0xde0/0xde0 [ 65.105035][ T6945] ? security_inode_permission+0xc4/0xf0 [ 65.110671][ T6945] vfs_mkdir+0x419/0x690 [ 65.114904][ T6945] do_mkdirat+0x21e/0x280 [ 65.120179][ T6945] ? __ia32_sys_mknod+0xb0/0xb0 [ 65.125141][ T6945] ? do_syscall_64+0x1c/0xe0 [ 65.129719][ T6945] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.135687][ T6945] do_syscall_64+0x60/0xe0 [ 65.140131][ T6945] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.146011][ T6945] RIP: 0033:0x45bee7 [ 65.149880][ T6945] Code: Bad RIP value. [ 65.153940][ T6945] RSP: 002b:00007ffef8838cc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 65.162342][ T6945] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 65.170305][ T6945] RDX: 00007ffef8838d13 RSI: 00000000000001ff RDI: 00007ffef8838d10 [ 65.178258][ T6945] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 65.186214][ T6945] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 65.194256][ T6945] R13: 00007ffef8838d00 R14: 0000000000000000 R15: 00007ffef8838d10 [ 65.202236][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200602-syzkaller #0 [ 65.211353][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.221424][ T1155] Call Trace: [ 65.224736][ T1155] dump_stack+0x18f/0x20d [ 65.229085][ T1155] check_preemption_disabled+0x20d/0x220 [ 65.234730][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.239882][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.245391][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 65.251564][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 65.256873][ T1155] ? ext4_ext_release+0x10/0x10 [ 65.261756][ T1155] ? down_write_killable+0x170/0x170 [ 65.267055][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 65.272540][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 65.277420][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.282642][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.288202][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.294198][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 65.299686][ T1155] ext4_writepages+0x1ab5/0x3400 [ 65.304640][ T1155] ? mark_lock+0x20/0xdd0 [ 65.308997][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.314677][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.320327][ T1155] ? do_writepages+0xfa/0x2a0 [ 65.325008][ T1155] do_writepages+0xfa/0x2a0 [ 65.329549][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 65.334452][ T6945] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6945 [ 65.335181][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 65.344583][ T6945] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.349550][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 65.361301][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 65.366150][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 65.371876][ T1155] ? collapse_file+0x35a2/0x4330 [ 65.376800][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 65.382868][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 65.388052][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.394456][ T1155] collapse_file+0x35ac/0x4330 [ 65.399222][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 65.404576][ T1155] ? khugepaged+0x2506/0x3fc0 [ 65.409251][ T1155] ? xas_find+0x31a/0x880 [ 65.413582][ T1155] ? check_preemption_disabled+0x38/0x220 [ 65.419289][ T1155] khugepaged+0x3041/0x3fc0 [ 65.423883][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 65.429509][ T1155] ? lock_downgrade+0x840/0x840 [ 65.434362][ T1155] ? finish_wait+0x260/0x260 [ 65.438941][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 65.444730][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.450696][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 65.455710][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 65.461324][ T1155] kthread+0x3b5/0x4a0 [ 65.465383][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 65.471084][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 65.476808][ T1155] ret_from_fork+0x1f/0x30 [ 65.481224][ T6945] CPU: 0 PID: 6945 Comm: syz-executor.0 Not tainted 5.7.0-next-20200602-syzkaller #0 [ 65.490972][ T6945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.501124][ T6945] Call Trace: [ 65.504423][ T6945] dump_stack+0x18f/0x20d [ 65.508532][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 65.511565][ T6945] check_preemption_disabled+0x20d/0x220 [ 65.511585][ T6945] ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.511608][ T6945] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.511623][ T6945] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 65.511641][ T6945] ext4_ext_map_blocks+0x201b/0x33e0 [ 65.511661][ T6945] ? ext4_ext_release+0x10/0x10 [ 65.511693][ T6945] ? down_write_killable+0x170/0x170 [ 65.511707][ T6945] ? ext4_es_lookup_extent+0x41d/0xd10 [ 65.511731][ T6945] ext4_map_blocks+0x4cb/0x1640 [ 65.511755][ T6945] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.511771][ T6945] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.511790][ T6945] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.521974][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.527604][ T6945] ? prandom_u32_state+0xe/0x170 [ 65.527623][ T6945] ? __brelse+0x84/0xa0 [ 65.527640][ T6945] ? __ext4_new_inode+0x144/0x55e0 [ 65.527659][ T6945] ext4_getblk+0xad/0x520 [ 65.527679][ T6945] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 65.616330][ T6945] ? ext4_free_inode+0x1700/0x1700 [ 65.621440][ T6945] ext4_bread+0x7c/0x380 [ 65.626368][ T6945] ? ext4_getblk+0x520/0x520 [ 65.630980][ T6945] ? dquot_get_next_dqblk+0x180/0x180 [ 65.636355][ T6945] ext4_append+0x153/0x360 [ 65.640763][ T6945] ext4_mkdir+0x5e0/0xdf0 [ 65.646077][ T6945] ? ext4_rmdir+0xde0/0xde0 [ 65.650621][ T6945] ? security_inode_permission+0xc4/0xf0 [ 65.656264][ T6945] vfs_mkdir+0x419/0x690 [ 65.660499][ T6945] do_mkdirat+0x21e/0x280 [ 65.664829][ T6945] ? __ia32_sys_mknod+0xb0/0xb0 [ 65.669667][ T6945] ? do_syscall_64+0x1c/0xe0 [ 65.674245][ T6945] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.680686][ T6945] do_syscall_64+0x60/0xe0 [ 65.685111][ T6945] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.691352][ T6945] RIP: 0033:0x45bee7 [ 65.695233][ T6945] Code: Bad RIP value. [ 65.699388][ T6945] RSP: 002b:00007ffef8838cc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 65.707792][ T6945] RAX: ffffffffffffffda RBX: 000000000000ff30 RCX: 000000000045bee7 [ 65.715745][ T6945] RDX: 00007ffef8838d13 RSI: 00000000000001ff RDI: 00007ffef8838d10 [ 65.723695][ T6945] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 65.731661][ T6945] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 65.739611][ T6945] R13: 00007ffef8838d00 R14: 000000000000fed1 R15: 00007ffef8838d10 [ 65.747594][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200602-syzkaller #0 [ 65.756709][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.766781][ T1155] Call Trace: [ 65.770092][ T1155] dump_stack+0x18f/0x20d [ 65.774704][ T1155] check_preemption_disabled+0x20d/0x220 [ 65.780352][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 65.785493][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.790959][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 65.797126][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 65.802430][ T1155] ? ext4_ext_release+0x10/0x10 [ 65.807316][ T1155] ? down_write_killable+0x170/0x170 [ 65.812606][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 65.818073][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 65.823012][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.828476][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.834007][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.839981][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 65.845426][ T1155] ext4_writepages+0x1ab5/0x3400 [ 65.850356][ T1155] ? mark_lock+0x20/0xdd0 [ 65.854692][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.860329][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 65.865945][ T1155] ? do_writepages+0xfa/0x2a0 [ 65.870607][ T1155] do_writepages+0xfa/0x2a0 [ 65.875100][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 65.880719][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 65.885727][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 65.890913][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 65.895751][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 65.901453][ T1155] ? collapse_file+0x35a2/0x4330 [ 65.906387][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 65.912447][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 65.917638][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.923953][ T1155] collapse_file+0x35ac/0x4330 [ 65.928717][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 65.934333][ T1155] ? khugepaged+0x2506/0x3fc0 [ 65.939016][ T1155] ? xas_find+0x31a/0x880 [ 65.943332][ T1155] ? check_preemption_disabled+0x38/0x220 [ 65.949050][ T1155] khugepaged+0x3041/0x3fc0 [ 65.953573][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 65.959192][ T1155] ? lock_downgrade+0x840/0x840 [ 65.964037][ T1155] ? finish_wait+0x260/0x260 [ 65.968615][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 65.974408][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.980383][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 65.985416][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 65.991030][ T1155] kthread+0x3b5/0x4a0 [ 65.995084][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.000796][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.006513][ T1155] ret_from_fork+0x1f/0x30 2020/06/02 11:04:00 building call list... [ 66.263547][ T4322] tipc: TX() has been purged, node left! executing program [ 67.931700][ T6929] can: request_module (can-proto-0) failed. [ 68.349359][ T6929] can: request_module (can-proto-0) failed. [ 68.364326][ T6929] can: request_module (can-proto-0) failed.