[ 54.268120][ T6746] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.273990][ T6746] RIP: 0033:0x7f5631dea687 [ 54.278389][ T6746] Code: Bad RIP value. [ 54.282451][ T6746] RSP: 002b:00007fff87e8a998 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.290843][ T6746] RAX: ffffffffffffffda RBX: 00005638864c3985 RCX: 00007f5631dea687 [ 54.298827][ T6746] RDX: 00007fff87e8a860 RSI: 00000000000001ed RDI: 00005638864c3985 [ 54.306804][ T6746] RBP: 00007f5631dea680 R08: 0000000000000100 R09: 0000000000000000 [ 54.314790][ T6746] R10: 00005638864c3980 R11: 0000000000000246 R12: 00000000000001ed [ 54.322768][ T6746] R13: 00007fff87e8ab20 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.100566][ T198] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/198 [ 57.109943][ T198] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.116001][ T198] CPU: 0 PID: 198 Comm: kworker/u4:4 Not tainted 5.7.0-next-20200602-syzkaller #0 [ 57.126194][ T198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.136389][ T198] Workqueue: writeback wb_workfn (flush-8:0) [ 57.142365][ T198] Call Trace: [ 57.145784][ T198] dump_stack+0x18f/0x20d [ 57.150108][ T198] check_preemption_disabled+0x20d/0x220 [ 57.155741][ T198] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.160851][ T198] ? ext4_find_extent+0x81a/0xad0 [ 57.165920][ T198] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.171385][ T198] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.177219][ T198] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.182502][ T198] ? ext4_ext_release+0x10/0x10 [ 57.187380][ T198] ? down_write_killable+0x170/0x170 [ 57.192649][ T198] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.198114][ T198] ext4_map_blocks+0x4cb/0x1640 [ 57.203711][ T198] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.209774][ T198] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.215303][ T198] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.221264][ T198] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.226764][ T198] ext4_writepages+0x1ab5/0x3400 [ 57.231728][ T198] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.237695][ T198] ? __lock_acquire+0x2224/0x48b0 [ 57.242732][ T198] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.248718][ T198] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.254858][ T198] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.260503][ T198] ? do_writepages+0xfa/0x2a0 [ 57.265181][ T198] do_writepages+0xfa/0x2a0 [ 57.269687][ T198] ? page_writeback_cpu_online+0x10/0x10 [ 57.275303][ T198] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.280862][ T198] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.287012][ T198] ? lock_downgrade+0x840/0x840 [ 57.291869][ T198] __writeback_single_inode+0x12a/0x13d0 [ 57.297601][ T198] ? _raw_spin_unlock+0x24/0x40 [ 57.302436][ T198] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.308398][ T198] writeback_sb_inodes+0x515/0xdc0 [ 57.313517][ T198] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.319398][ T198] __writeback_inodes_wb+0xc3/0x250 [ 57.324581][ T198] wb_writeback+0x8db/0xd50 [ 57.329068][ T198] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.335395][ T198] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.341286][ T198] ? cpumask_next+0x3c/0x40 [ 57.345797][ T198] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.351001][ T198] wb_workfn+0xab3/0x1090 [ 57.355352][ T198] ? inode_wait_for_writeback+0x30/0x30 [ 57.360901][ T198] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.366431][ T198] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.372413][ T198] process_one_work+0x965/0x1690 [ 57.377336][ T198] ? lock_release+0x800/0x800 [ 57.382004][ T198] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.387379][ T198] ? rwlock_bug.part.0+0x90/0x90 [ 57.392299][ T198] worker_thread+0x96/0xe10 [ 57.396793][ T198] ? process_one_work+0x1690/0x1690 [ 57.401973][ T198] kthread+0x3b5/0x4a0 [ 57.406020][ T198] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.411741][ T198] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.417440][ T198] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.243' (ECDSA) to the list of known hosts. 2020/06/02 23:58:46 fuzzer started 2020/06/02 23:58:47 connecting to host at 10.128.0.26:39523 2020/06/02 23:58:47 checking machine... 2020/06/02 23:58:47 checking revisions... 2020/06/02 23:58:47 testing simple program... [ 60.217248][ T6816] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6816 [ 60.226488][ T6816] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.232735][ T6816] CPU: 1 PID: 6816 Comm: syz-fuzzer Not tainted 5.7.0-next-20200602-syzkaller #0 [ 60.241842][ T6816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.251895][ T6816] Call Trace: [ 60.255169][ T6816] dump_stack+0x18f/0x20d [ 60.259485][ T6816] check_preemption_disabled+0x20d/0x220 [ 60.265197][ T6816] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.270292][ T6816] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.275738][ T6816] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.281474][ T6816] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.286771][ T6816] ? ext4_ext_release+0x10/0x10 [ 60.291631][ T6816] ? down_write_killable+0x170/0x170 [ 60.296927][ T6816] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.302383][ T6816] ext4_map_blocks+0x4cb/0x1640 [ 60.307231][ T6816] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.312422][ T6816] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.319514][ T6816] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.325472][ T6816] ? prandom_u32_state+0xe/0x170 [ 60.330417][ T6816] ? __brelse+0x84/0xa0 [ 60.334568][ T6816] ? __ext4_new_inode+0x144/0x55e0 [ 60.339668][ T6816] ext4_getblk+0xad/0x520 [ 60.343981][ T6816] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.349699][ T6816] ? ext4_free_inode+0x1700/0x1700 [ 60.354792][ T6816] ext4_bread+0x7c/0x380 [ 60.359038][ T6816] ? ext4_getblk+0x520/0x520 [ 60.363616][ T6816] ? dquot_get_next_dqblk+0x180/0x180 [ 60.368974][ T6816] ext4_append+0x153/0x360 [ 60.373480][ T6816] ext4_mkdir+0x5e0/0xdf0 [ 60.377824][ T6816] ? ext4_rmdir+0xde0/0xde0 [ 60.382341][ T6816] ? security_inode_permission+0xc4/0xf0 [ 60.387973][ T6816] vfs_mkdir+0x419/0x690 [ 60.392223][ T6816] do_mkdirat+0x21e/0x280 [ 60.396556][ T6816] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.401409][ T6816] ? do_syscall_64+0x1c/0xe0 [ 60.405993][ T6816] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.411984][ T6816] do_syscall_64+0x60/0xe0 [ 60.416412][ T6816] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.422287][ T6816] RIP: 0033:0x4b02a0 [ 60.426172][ T6816] Code: Bad RIP value. [ 60.430221][ T6816] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.438620][ T6816] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 60.446693][ T6816] RDX: 00000000000001c0 RSI: 000000c000026740 RDI: ffffffffffffff9c [ 60.454666][ T6816] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 60.462635][ T6816] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.470618][ T6816] R13: 000000000000003b R14: 000000000000003a R15: 0000000000000100 [ 60.495385][ T6834] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6834 [ 60.504968][ T6834] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.511079][ T6834] CPU: 0 PID: 6834 Comm: syz-executor.0 Not tainted 5.7.0-next-20200602-syzkaller #0 [ 60.520901][ T6834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.530969][ T6834] Call Trace: [ 60.534277][ T6834] dump_stack+0x18f/0x20d [ 60.538591][ T6834] check_preemption_disabled+0x20d/0x220 [ 60.544234][ T6834] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.549333][ T6834] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.554781][ T6834] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.560504][ T6834] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.565780][ T6834] ? ext4_ext_release+0x10/0x10 [ 60.570630][ T6834] ? down_write_killable+0x170/0x170 [ 60.575898][ T6834] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.581349][ T6834] ext4_map_blocks+0x4cb/0x1640 [ 60.586185][ T6834] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.591366][ T6834] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.596899][ T6834] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.602863][ T6834] ? prandom_u32_state+0xe/0x170 [ 60.607815][ T6834] ? __brelse+0x84/0xa0 [ 60.611980][ T6834] ? __ext4_new_inode+0x144/0x55e0 [ 60.617076][ T6834] ext4_getblk+0xad/0x520 [ 60.621397][ T6834] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.627100][ T6834] ? ext4_free_inode+0x1700/0x1700 [ 60.632193][ T6834] ext4_bread+0x7c/0x380 [ 60.636417][ T6834] ? ext4_getblk+0x520/0x520 [ 60.640987][ T6834] ? dquot_get_next_dqblk+0x180/0x180 [ 60.646341][ T6834] ext4_append+0x153/0x360 [ 60.650757][ T6834] ext4_mkdir+0x5e0/0xdf0 [ 60.655107][ T6834] ? ext4_rmdir+0xde0/0xde0 [ 60.659603][ T6834] ? security_inode_permission+0xc4/0xf0 [ 60.665252][ T6834] vfs_mkdir+0x419/0x690 [ 60.669488][ T6834] do_mkdirat+0x21e/0x280 [ 60.673807][ T6834] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.678656][ T6834] ? do_syscall_64+0x1c/0xe0 [ 60.683244][ T6834] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.689214][ T6834] do_syscall_64+0x60/0xe0 [ 60.693618][ T6834] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.699502][ T6834] RIP: 0033:0x45bee7 [ 60.703382][ T6834] Code: Bad RIP value. [ 60.707447][ T6834] RSP: 002b:00007fff25a06ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.715867][ T6834] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.723966][ T6834] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007fff25a070d0 [ 60.732010][ T6834] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003400 [ 60.739980][ T6834] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.748069][ T6834] R13: 00007fff25a070d0 R14: 8421084210842109 R15: 00007fff25a070dc [ 60.830638][ T6835] IPVS: ftp: loaded support on port[0] = 21 [ 60.867294][ T6835] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6835 [ 60.877054][ T6835] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.883038][ T6835] CPU: 1 PID: 6835 Comm: syz-executor.0 Not tainted 5.7.0-next-20200602-syzkaller #0 [ 60.892493][ T6835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.903116][ T6835] Call Trace: [ 60.906415][ T6835] dump_stack+0x18f/0x20d [ 60.910755][ T6835] check_preemption_disabled+0x20d/0x220 [ 60.916381][ T6835] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.921485][ T6835] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.926934][ T6835] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.932664][ T6835] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.937943][ T6835] ? ext4_ext_release+0x10/0x10 [ 60.942812][ T6835] ? down_write_killable+0x170/0x170 [ 60.948084][ T6835] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.953526][ T6835] ext4_map_blocks+0x4cb/0x1640 [ 60.958387][ T6835] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.963585][ T6835] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.969238][ T6835] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.975203][ T6835] ? prandom_u32_state+0xe/0x170 [ 60.980123][ T6835] ? __brelse+0x84/0xa0 [ 60.984262][ T6835] ? __ext4_new_inode+0x144/0x55e0 [ 60.989374][ T6835] ext4_getblk+0xad/0x520 [ 60.993683][ T6835] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.999509][ T6835] ? ext4_free_inode+0x1700/0x1700 [ 61.004600][ T6835] ext4_bread+0x7c/0x380 [ 61.008826][ T6835] ? ext4_getblk+0x520/0x520 [ 61.013404][ T6835] ? dquot_get_next_dqblk+0x180/0x180 [ 61.018759][ T6835] ext4_append+0x153/0x360 [ 61.023192][ T6835] ext4_mkdir+0x5e0/0xdf0 [ 61.027534][ T6835] ? ext4_rmdir+0xde0/0xde0 [ 61.032040][ T6835] ? security_inode_permission+0xc4/0xf0 [ 61.037657][ T6835] vfs_mkdir+0x419/0x690 [ 61.041884][ T6835] do_mkdirat+0x21e/0x280 [ 61.046194][ T6835] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.051043][ T6835] ? do_syscall_64+0x1c/0xe0 [ 61.055611][ T6835] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.061571][ T6835] do_syscall_64+0x60/0xe0 [ 61.065982][ T6835] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.071854][ T6835] RIP: 0033:0x45bee7 [ 61.075721][ T6835] Code: Bad RIP value. [ 61.079762][ T6835] RSP: 002b:00007fff25a06de8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.088147][ T6835] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 61.096096][ T6835] RDX: 00007fff25a06e33 RSI: 00000000000001ff RDI: 00007fff25a06e30 [ 61.104159][ T6835] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.112109][ T6835] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 61.120075][ T6835] R13: 00007fff25a06e20 R14: 0000000000000000 R15: 00007fff25a06e30 [ 61.175709][ T6835] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6835 [ 61.175827][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.185910][ T6835] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.195100][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.195116][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200602-syzkaller #0 [ 61.195124][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.195128][ T1155] Call Trace: [ 61.195147][ T1155] dump_stack+0x18f/0x20d [ 61.195169][ T1155] check_preemption_disabled+0x20d/0x220 [ 61.240430][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.245567][ T1155] ? ext4_find_extent+0x81a/0xad0 [ 61.250692][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.256374][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.262528][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.267832][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.272727][ T1155] ? down_write_killable+0x170/0x170 [ 61.278809][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.284830][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.290137][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.295351][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.300882][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.307636][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.314037][ T1155] ext4_writepages+0x1ab5/0x3400 [ 61.318985][ T1155] ? mark_lock+0x20/0xdd0 [ 61.323308][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.328945][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.334568][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.339403][ T1155] do_writepages+0xfa/0x2a0 [ 61.344002][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.350334][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 61.355521][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.360858][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.365957][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.371680][ T1155] ? collapse_file+0x35a2/0x4330 [ 61.376630][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.382794][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.387995][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.393965][ T1155] collapse_file+0x35ac/0x4330 [ 61.398732][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 61.404100][ T1155] ? khugepaged+0x2506/0x3fc0 [ 61.408773][ T1155] ? xas_find+0x31a/0x880 [ 61.413454][ T1155] ? check_preemption_disabled+0x38/0x220 [ 61.419171][ T1155] khugepaged+0x3041/0x3fc0 [ 61.423679][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.429297][ T1155] ? lock_downgrade+0x840/0x840 [ 61.434230][ T1155] ? finish_wait+0x260/0x260 [ 61.438817][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.444735][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.450814][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.456436][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.462057][ T1155] kthread+0x3b5/0x4a0 [ 61.466129][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.471831][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.477539][ T1155] ret_from_fork+0x1f/0x30 [ 61.482041][ T6835] CPU: 1 PID: 6835 Comm: syz-executor.0 Not tainted 5.7.0-next-20200602-syzkaller #0 [ 61.491596][ T6835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.501653][ T6835] Call Trace: [ 61.512168][ T6835] dump_stack+0x18f/0x20d [ 61.516609][ T6835] check_preemption_disabled+0x20d/0x220 [ 61.522290][ T6835] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.527422][ T6835] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.533069][ T6835] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.538993][ T6835] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.544495][ T6835] ? ext4_ext_release+0x10/0x10 [ 61.549399][ T6835] ? down_write_killable+0x170/0x170 [ 61.554712][ T6835] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.560193][ T6835] ext4_map_blocks+0x4cb/0x1640 [ 61.565075][ T6835] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.570432][ T6835] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.576056][ T6835] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.582066][ T6835] ? prandom_u32_state+0xe/0x170 [ 61.587005][ T6835] ? __brelse+0x84/0xa0 [ 61.591153][ T6835] ? __ext4_new_inode+0x144/0x55e0 [ 61.596335][ T6835] ext4_getblk+0xad/0x520 [ 61.600657][ T6835] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.606535][ T6835] ? ext4_free_inode+0x1700/0x1700 [ 61.611637][ T6835] ext4_bread+0x7c/0x380 [ 61.615856][ T6835] ? ext4_getblk+0x520/0x520 [ 61.620425][ T6835] ? dquot_get_next_dqblk+0x180/0x180 [ 61.625779][ T6835] ext4_append+0x153/0x360 [ 61.630611][ T6835] ext4_mkdir+0x5e0/0xdf0 [ 61.638607][ T6835] ? ext4_rmdir+0xde0/0xde0 [ 61.643179][ T6835] ? security_inode_permission+0xc4/0xf0 [ 61.650613][ T6835] vfs_mkdir+0x419/0x690 [ 61.654857][ T6835] do_mkdirat+0x21e/0x280 [ 61.659189][ T6835] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.664032][ T6835] ? do_syscall_64+0x1c/0xe0 [ 61.668868][ T6835] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.674851][ T6835] do_syscall_64+0x60/0xe0 [ 61.679295][ T6835] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.685607][ T6835] RIP: 0033:0x45bee7 [ 61.689571][ T6835] Code: Bad RIP value. [ 61.693610][ T6835] RSP: 002b:00007fff25a06de8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.702257][ T6835] RAX: ffffffffffffffda RBX: 000000000000eef2 RCX: 000000000045bee7 [ 61.710214][ T6835] RDX: 00007fff25a06e33 RSI: 00000000000001ff RDI: 00007fff25a06e30 [ 61.718174][ T6835] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.726129][ T6835] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 61.734101][ T6835] R13: 00007fff25a06e20 R14: 000000000000eee2 R15: 00007fff25a06e30 [ 61.823547][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.832938][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.838946][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200602-syzkaller #0 [ 61.848055][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.858114][ T1155] Call Trace: [ 61.861416][ T1155] dump_stack+0x18f/0x20d [ 61.865763][ T1155] check_preemption_disabled+0x20d/0x220 [ 61.871411][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.876563][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.882046][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.888218][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.893616][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.898495][ T1155] ? down_write_killable+0x170/0x170 [ 61.903793][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.909277][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.914147][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.919360][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.924919][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.930930][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.936397][ T1155] ext4_writepages+0x1ab5/0x3400 [ 61.941567][ T1155] ? mark_lock+0x20/0xdd0 [ 61.945933][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.951602][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.957242][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.961923][ T1155] do_writepages+0xfa/0x2a0 [ 61.966445][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.972078][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 61.977102][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.982423][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.987288][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.993012][ T1155] ? collapse_file+0x35a2/0x4330 [ 61.997960][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.004061][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.009275][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.015260][ T1155] collapse_file+0x35ac/0x4330 2020/06/02 23:58:49 building call list... [ 62.020057][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 62.025438][ T1155] ? khugepaged+0x2506/0x3fc0 [ 62.030125][ T1155] ? xas_find+0x31a/0x880 [ 62.034455][ T1155] ? check_preemption_disabled+0x38/0x220 [ 62.040179][ T1155] khugepaged+0x3041/0x3fc0 [ 62.044720][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.050375][ T1155] ? lock_downgrade+0x840/0x840 [ 62.055231][ T1155] ? finish_wait+0x260/0x260 [ 62.060175][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.065984][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.072056][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 62.077113][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.082791][ T1155] kthread+0x3b5/0x4a0 [ 62.086884][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.092605][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.098328][ T1155] ret_from_fork+0x1f/0x30 [ 62.150621][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 62.159893][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.167871][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200602-syzkaller #0 [ 62.177006][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.187073][ T1155] Call Trace: [ 62.190371][ T1155] dump_stack+0x18f/0x20d [ 62.194715][ T1155] check_preemption_disabled+0x20d/0x220 [ 62.200695][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.206272][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.211750][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.217900][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.223200][ T1155] ? ext4_ext_release+0x10/0x10 [ 62.228071][ T1155] ? down_write_killable+0x170/0x170 [ 62.233373][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.238835][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 62.243793][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.249011][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.254590][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.260589][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.266050][ T1155] ext4_writepages+0x1ab5/0x3400 [ 62.271001][ T1155] ? mark_lock+0x20/0xdd0 [ 62.275343][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.281093][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.286733][ T1155] ? do_writepages+0xfa/0x2a0 [ 62.291411][ T1155] do_writepages+0xfa/0x2a0 [ 62.295915][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 62.301545][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 62.306564][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 62.311761][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 62.316621][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.322337][ T1155] ? collapse_file+0x35a2/0x4330 [ 62.327268][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.333343][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.338539][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.344530][ T1155] collapse_file+0x35ac/0x4330 [ 62.349312][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 62.354685][ T1155] ? khugepaged+0x2506/0x3fc0 [ 62.359379][ T1155] ? xas_find+0x31a/0x880 [ 62.363706][ T1155] ? check_preemption_disabled+0x38/0x220 [ 62.369423][ T1155] khugepaged+0x3041/0x3fc0 [ 62.373947][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.379587][ T1155] ? lock_downgrade+0x840/0x840 [ 62.384432][ T1155] ? finish_wait+0x260/0x260 [ 62.389024][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.394842][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.400824][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 62.405934][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.411567][ T1155] kthread+0x3b5/0x4a0 [ 62.415636][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.422740][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.428460][ T1155] ret_from_fork+0x1f/0x30 [ 62.518565][ T198] tipc: TX() has been purged, node left! executing program [ 63.750895][ T6820] can: request_module (can-proto-0) failed. [ 64.544440][ T6820] can: request_module (can-proto-0) failed. [ 64.555952][ T6820] can: request_module (can-proto-0) failed.