[ 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. [ 51.130539][ T4783] systemd-udevd (4783) used greatest stack depth: 22112 bytes left [ 51.145419][ T4835] systemd-udevd (4835) used greatest stack depth: 21696 bytes left [ 52.237946][ T6747] scp (6747) used greatest stack depth: 21520 bytes left Starting Load/Save RF Kill Switch Status... [ 53.182801][ T6755] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6755 [ 53.192368][ T6755] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.198530][ T6755] CPU: 1 PID: 6755 Comm: systemd-rfkill Not tainted 5.7.0-next-20200605-syzkaller #0 [ 53.207979][ T6755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.218023][ T6755] Call Trace: [ 53.221296][ T6755] dump_stack+0x18f/0x20d [ 53.225612][ T6755] check_preemption_disabled+0x20d/0x220 [ 53.231238][ T6755] ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.236335][ T6755] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.241861][ T6755] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.247619][ T6755] ext4_ext_map_blocks+0x201b/0x33e0 [ 53.252907][ T6755] ? ext4_ext_release+0x10/0x10 [ 53.257748][ T6755] ? down_write_killable+0x170/0x170 [ 53.263008][ T6755] ? ext4_es_lookup_extent+0x41d/0xd10 [ 53.268445][ T6755] ext4_map_blocks+0x4cb/0x1640 [ 53.273281][ T6755] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.278457][ T6755] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.283981][ T6755] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.289953][ T6755] ? prandom_u32_state+0xe/0x170 [ 53.294867][ T6755] ? __brelse+0x84/0xa0 [ 53.298998][ T6755] ? __ext4_new_inode+0x144/0x55e0 [ 53.304108][ T6755] ext4_getblk+0xad/0x520 [ 53.308415][ T6755] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.314113][ T6755] ? ext4_free_inode+0x1700/0x1700 [ 53.319211][ T6755] ext4_bread+0x7c/0x380 [ 53.323440][ T6755] ? ext4_getblk+0x520/0x520 [ 53.328008][ T6755] ? dquot_get_next_dqblk+0x180/0x180 [ 53.333359][ T6755] ext4_append+0x153/0x360 [ 53.337752][ T6755] ext4_mkdir+0x5e0/0xdf0 [ 53.342071][ T6755] ? ext4_rmdir+0xde0/0xde0 [ 53.346553][ T6755] ? security_inode_permission+0xc4/0xf0 [ 53.352166][ T6755] vfs_mkdir+0x419/0x690 [ 53.356386][ T6755] do_mkdirat+0x21e/0x280 [ 53.360693][ T6755] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.365605][ T6755] ? do_syscall_64+0x1c/0xe0 [ 53.370169][ T6755] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.376139][ T6755] do_syscall_64+0x60/0xe0 [ 53.380529][ T6755] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.386392][ T6755] RIP: 0033:0x7f1369fd9687 [ 53.390788][ T6755] Code: Bad RIP value. [ 53.394825][ T6755] RSP: 002b:00007ffd1f7b2418 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.403209][ T6755] RAX: ffffffffffffffda RBX: 000055572d50d985 RCX: 00007f1369fd9687 [ 53.411155][ T6755] RDX: 00007ffd1f7b22e0 RSI: 00000000000001ed RDI: 000055572d50d985 [ 53.419099][ T6755] RBP: 00007f1369fd9680 R08: 0000000000000100 R09: 0000000000000000 [ 53.427055][ T6755] R10: 000055572d50d980 R11: 0000000000000246 R12: 00000000000001ed [ 53.435003][ T6755] R13: 00007ffd1f7b25a0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.046154][ T34] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:3/34 [ 56.055198][ T34] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.061166][ T34] CPU: 0 PID: 34 Comm: kworker/u4:3 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 56.070321][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.080482][ T34] Workqueue: writeback wb_workfn (flush-8:0) [ 56.086476][ T34] Call Trace: [ 56.089744][ T34] dump_stack+0x18f/0x20d [ 56.094066][ T34] check_preemption_disabled+0x20d/0x220 [ 56.099676][ T34] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.104765][ T34] ? ext4_find_extent+0x81a/0xad0 [ 56.109768][ T34] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.115202][ T34] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.121666][ T34] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.126957][ T34] ? ext4_ext_release+0x10/0x10 [ 56.131794][ T34] ? down_write_killable+0x170/0x170 [ 56.137072][ T34] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.142509][ T34] ext4_map_blocks+0x4cb/0x1640 [ 56.147341][ T34] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.152520][ T34] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.158055][ T34] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.164011][ T34] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.169447][ T34] ext4_writepages+0x1a7b/0x33c0 [ 56.174372][ T34] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.179998][ T34] ? __lock_acquire+0x2224/0x48b0 [ 56.185008][ T34] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.191075][ T34] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.197033][ T34] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.202640][ T34] ? do_writepages+0xfa/0x2a0 [ 56.207309][ T34] do_writepages+0xfa/0x2a0 [ 56.211809][ T34] ? page_writeback_cpu_online+0x10/0x10 [ 56.217423][ T34] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.222943][ T34] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.228940][ T34] ? lock_downgrade+0x840/0x840 [ 56.233889][ T34] __writeback_single_inode+0x12a/0x13d0 [ 56.239507][ T34] ? _raw_spin_unlock+0x24/0x40 [ 56.244338][ T34] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.250303][ T34] writeback_sb_inodes+0x515/0xdc0 [ 56.255404][ T34] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.261290][ T34] __writeback_inodes_wb+0xc3/0x250 [ 56.266474][ T34] wb_writeback+0x8db/0xd50 [ 56.270961][ T34] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.277267][ T34] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.283140][ T34] ? cpumask_next+0x3c/0x40 [ 56.287621][ T34] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.292798][ T34] wb_workfn+0xab3/0x1090 [ 56.297108][ T34] ? inode_wait_for_writeback+0x30/0x30 [ 56.302647][ T34] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.308169][ T34] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.314132][ T34] process_one_work+0x965/0x1690 [ 56.319068][ T34] ? lock_release+0x800/0x800 [ 56.323721][ T34] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.329072][ T34] ? rwlock_bug.part.0+0x90/0x90 [ 56.334008][ T34] worker_thread+0x96/0xe10 [ 56.338497][ T34] ? process_one_work+0x1690/0x1690 [ 56.343670][ T34] kthread+0x3b5/0x4a0 [ 56.347716][ T34] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.353409][ T34] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.359106][ T34] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.10.47' (ECDSA) to the list of known hosts. 2020/06/05 18:20:41 fuzzer started 2020/06/05 18:20:41 connecting to host at 10.128.0.26:42387 2020/06/05 18:20:41 checking machine... 2020/06/05 18:20:41 checking revisions... 2020/06/05 18:20:41 testing simple program... [ 58.899541][ T6827] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6827 [ 58.908760][ T6827] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.914644][ T6827] CPU: 1 PID: 6827 Comm: syz-fuzzer Not tainted 5.7.0-next-20200605-syzkaller #0 [ 58.923877][ T6827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.934120][ T6827] Call Trace: [ 58.937621][ T6827] dump_stack+0x18f/0x20d [ 58.942055][ T6827] check_preemption_disabled+0x20d/0x220 [ 58.947679][ T6827] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.952783][ T6827] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.958230][ T6827] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.963973][ T6827] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.969250][ T6827] ? ext4_ext_release+0x10/0x10 [ 58.974134][ T6827] ? down_write_killable+0x170/0x170 [ 58.979405][ T6827] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.984866][ T6827] ext4_map_blocks+0x4cb/0x1640 [ 58.989762][ T6827] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.994953][ T6827] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.000485][ T6827] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.006454][ T6827] ? prandom_u32_state+0xe/0x170 [ 59.011377][ T6827] ? __brelse+0x84/0xa0 [ 59.015518][ T6827] ? __ext4_new_inode+0x144/0x55e0 [ 59.020616][ T6827] ext4_getblk+0xad/0x520 [ 59.025067][ T6827] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.030775][ T6827] ? ext4_free_inode+0x1700/0x1700 [ 59.035873][ T6827] ext4_bread+0x7c/0x380 [ 59.040112][ T6827] ? ext4_getblk+0x520/0x520 [ 59.044787][ T6827] ? dquot_get_next_dqblk+0x180/0x180 [ 59.050250][ T6827] ext4_append+0x153/0x360 [ 59.054892][ T6827] ext4_mkdir+0x5e0/0xdf0 [ 59.059431][ T6827] ? ext4_rmdir+0xde0/0xde0 [ 59.064015][ T6827] ? security_inode_permission+0xc4/0xf0 [ 59.069778][ T6827] vfs_mkdir+0x419/0x690 [ 59.074276][ T6827] do_mkdirat+0x21e/0x280 [ 59.078803][ T6827] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.083639][ T6827] ? do_syscall_64+0x1c/0xe0 [ 59.088216][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.094183][ T6827] do_syscall_64+0x60/0xe0 [ 59.098690][ T6827] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.104568][ T6827] RIP: 0033:0x4b02a0 [ 59.108441][ T6827] Code: Bad RIP value. [ 59.112488][ T6827] RSP: 002b:000000c0000e14b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.120882][ T6827] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.128856][ T6827] RDX: 00000000000001c0 RSI: 000000c0000ceb40 RDI: ffffffffffffff9c [ 59.137139][ T6827] RBP: 000000c0000e1510 R08: 0000000000000000 R09: 0000000000000000 [ 59.145232][ T6827] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.153198][ T6827] R13: 000000000000005b R14: 000000000000005a R15: 0000000000000100 [ 59.178149][ T6840] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6840 [ 59.187716][ T6840] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.193904][ T6840] CPU: 0 PID: 6840 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.203465][ T6840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.213601][ T6840] Call Trace: [ 59.216883][ T6840] dump_stack+0x18f/0x20d [ 59.221240][ T6840] check_preemption_disabled+0x20d/0x220 [ 59.226981][ T6840] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.232238][ T6840] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.237682][ T6840] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.243386][ T6840] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.248787][ T6840] ? ext4_ext_release+0x10/0x10 [ 59.253642][ T6840] ? down_write_killable+0x170/0x170 [ 59.259289][ T6840] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.264794][ T6840] ext4_map_blocks+0x4cb/0x1640 [ 59.269641][ T6840] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.274831][ T6840] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.280586][ T6840] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.286658][ T6840] ? prandom_u32_state+0xe/0x170 [ 59.291583][ T6840] ? __brelse+0x84/0xa0 [ 59.295812][ T6840] ? __ext4_new_inode+0x144/0x55e0 [ 59.300945][ T6840] ext4_getblk+0xad/0x520 [ 59.305273][ T6840] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.311022][ T6840] ? ext4_free_inode+0x1700/0x1700 [ 59.316120][ T6840] ext4_bread+0x7c/0x380 [ 59.320345][ T6840] ? ext4_getblk+0x520/0x520 [ 59.324923][ T6840] ? dquot_get_next_dqblk+0x180/0x180 [ 59.330329][ T6840] ext4_append+0x153/0x360 [ 59.334745][ T6840] ext4_mkdir+0x5e0/0xdf0 [ 59.339082][ T6840] ? ext4_rmdir+0xde0/0xde0 [ 59.343610][ T6840] ? security_inode_permission+0xc4/0xf0 [ 59.349326][ T6840] vfs_mkdir+0x419/0x690 [ 59.353556][ T6840] do_mkdirat+0x21e/0x280 [ 59.357873][ T6840] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.362715][ T6840] ? do_syscall_64+0x1c/0xe0 [ 59.367338][ T6840] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.373594][ T6840] do_syscall_64+0x60/0xe0 [ 59.378004][ T6840] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.383915][ T6840] RIP: 0033:0x45bee7 [ 59.387805][ T6840] Code: Bad RIP value. [ 59.391859][ T6840] RSP: 002b:00007ffd947d6008 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.400253][ T6840] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.408212][ T6840] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffd947d61e0 [ 59.416169][ T6840] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002d40 [ 59.424158][ T6840] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.432114][ T6840] R13: 00007ffd947d61e0 R14: 8421084210842109 R15: 00007ffd947d61ec [ 59.513514][ T6841] IPVS: ftp: loaded support on port[0] = 21 [ 59.551313][ T6841] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6841 [ 59.561063][ T6841] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.567227][ T6841] CPU: 1 PID: 6841 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.576941][ T6841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.587022][ T6841] Call Trace: [ 59.590311][ T6841] dump_stack+0x18f/0x20d [ 59.594653][ T6841] check_preemption_disabled+0x20d/0x220 [ 59.600332][ T6841] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.605480][ T6841] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.610931][ T6841] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.616641][ T6841] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.621980][ T6841] ? ext4_ext_release+0x10/0x10 [ 59.626884][ T6841] ? down_write_killable+0x170/0x170 [ 59.632184][ T6841] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.637634][ T6841] ext4_map_blocks+0x4cb/0x1640 [ 59.642516][ T6841] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.647701][ T6841] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.653277][ T6841] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.659246][ T6841] ? prandom_u32_state+0xe/0x170 [ 59.664168][ T6841] ? __brelse+0x84/0xa0 [ 59.668312][ T6841] ? __ext4_new_inode+0x144/0x55e0 [ 59.673409][ T6841] ext4_getblk+0xad/0x520 [ 59.677760][ T6841] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.683515][ T6841] ? ext4_free_inode+0x1700/0x1700 [ 59.688627][ T6841] ext4_bread+0x7c/0x380 [ 59.692855][ T6841] ? ext4_getblk+0x520/0x520 [ 59.697434][ T6841] ? dquot_get_next_dqblk+0x180/0x180 [ 59.702797][ T6841] ext4_append+0x153/0x360 [ 59.707202][ T6841] ext4_mkdir+0x5e0/0xdf0 [ 59.711523][ T6841] ? ext4_rmdir+0xde0/0xde0 [ 59.716017][ T6841] ? security_inode_permission+0xc4/0xf0 [ 59.721640][ T6841] vfs_mkdir+0x419/0x690 [ 59.725872][ T6841] do_mkdirat+0x21e/0x280 [ 59.730232][ T6841] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.735071][ T6841] ? do_syscall_64+0x1c/0xe0 [ 59.739646][ T6841] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.745613][ T6841] do_syscall_64+0x60/0xe0 [ 59.750013][ T6841] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.755890][ T6841] RIP: 0033:0x45bee7 [ 59.759821][ T6841] Code: Bad RIP value. [ 59.763911][ T6841] RSP: 002b:00007ffd947d5ef8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.772303][ T6841] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.780267][ T6841] RDX: 00007ffd947d5f43 RSI: 00000000000001ff RDI: 00007ffd947d5f40 [ 59.788270][ T6841] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.796260][ T6841] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.804250][ T6841] R13: 00007ffd947d5f30 R14: 0000000000000000 R15: 00007ffd947d5f40 [ 59.820401][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 59.829895][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.835876][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.845158][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.855197][ T1154] Call Trace: [ 59.858480][ T1154] dump_stack+0x18f/0x20d [ 59.862803][ T1154] check_preemption_disabled+0x20d/0x220 [ 59.868552][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.873775][ T1154] ? ext4_find_extent+0x81a/0xad0 [ 59.878874][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.884323][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.890157][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.895433][ T1154] ? ext4_ext_release+0x10/0x10 [ 59.900286][ T1154] ? down_write_killable+0x170/0x170 [ 59.905693][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.911151][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 59.915992][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.921177][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.926744][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.932710][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.938154][ T1154] ext4_writepages+0x1a7b/0x33c0 [ 59.943123][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.948754][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.954374][ T1154] ? do_writepages+0xfa/0x2a0 [ 59.959038][ T1154] do_writepages+0xfa/0x2a0 [ 59.963530][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 59.969202][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 59.974244][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 59.979433][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 59.984358][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.990065][ T1154] ? collapse_file+0x35a2/0x4330 [ 59.995027][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.001084][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.006320][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.012289][ T1154] collapse_file+0x35ac/0x4330 [ 60.017050][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 60.022407][ T1154] ? khugepaged+0x2506/0x3fc0 [ 60.027077][ T1154] ? xas_find+0x31a/0x880 [ 60.031392][ T1154] ? check_preemption_disabled+0x38/0x220 [ 60.037099][ T1154] khugepaged+0x3041/0x3fc0 [ 60.041641][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.047264][ T1154] ? lock_downgrade+0x840/0x840 [ 60.052187][ T1154] ? finish_wait+0x260/0x260 [ 60.056785][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.062577][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.068598][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 60.073644][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.079277][ T1154] kthread+0x3b5/0x4a0 [ 60.083365][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.089066][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.094813][ T1154] ret_from_fork+0x1f/0x30 [ 60.143716][ T6841] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6841 [ 60.153343][ T6841] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.159334][ T6841] CPU: 1 PID: 6841 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.169033][ T6841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.179090][ T6841] Call Trace: [ 60.182396][ T6841] dump_stack+0x18f/0x20d [ 60.186753][ T6841] check_preemption_disabled+0x20d/0x220 [ 60.192401][ T6841] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.197524][ T6841] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.203107][ T6841] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.208824][ T6841] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.214097][ T6841] ? ext4_ext_release+0x10/0x10 [ 60.218968][ T6841] ? down_write_killable+0x170/0x170 [ 60.224265][ T6841] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.229938][ T6841] ext4_map_blocks+0x4cb/0x1640 [ 60.234810][ T6841] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.240029][ T6841] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.245587][ T6841] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.251571][ T6841] ? prandom_u32_state+0xe/0x170 [ 60.256677][ T6841] ? __brelse+0x84/0xa0 [ 60.260829][ T6841] ? __ext4_new_inode+0x144/0x55e0 [ 60.265933][ T6841] ext4_getblk+0xad/0x520 [ 60.270251][ T6841] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.276098][ T6841] ? ext4_free_inode+0x1700/0x1700 [ 60.281234][ T6841] ext4_bread+0x7c/0x380 [ 60.285464][ T6841] ? ext4_getblk+0x520/0x520 [ 60.290041][ T6841] ? dquot_get_next_dqblk+0x180/0x180 [ 60.295554][ T6841] ext4_append+0x153/0x360 [ 60.300081][ T6841] ext4_mkdir+0x5e0/0xdf0 [ 60.304429][ T6841] ? ext4_rmdir+0xde0/0xde0 [ 60.308933][ T6841] ? security_inode_permission+0xc4/0xf0 [ 60.314692][ T6841] vfs_mkdir+0x419/0x690 [ 60.318925][ T6841] do_mkdirat+0x21e/0x280 [ 60.323440][ T6841] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.328344][ T6841] ? do_syscall_64+0x1c/0xe0 [ 60.333055][ T6841] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.339098][ T6841] do_syscall_64+0x60/0xe0 [ 60.343501][ T6841] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.349410][ T6841] RIP: 0033:0x45bee7 [ 60.353284][ T6841] Code: Bad RIP value. [ 60.357371][ T6841] RSP: 002b:00007ffd947d5ef8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.365765][ T6841] RAX: ffffffffffffffda RBX: 000000000000eae3 RCX: 000000000045bee7 [ 60.373754][ T6841] RDX: 00007ffd947d5f43 RSI: 00000000000001ff RDI: 00007ffd947d5f40 [ 60.381724][ T6841] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 2020/06/05 18:20:43 building call list... [ 60.389713][ T6841] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.397670][ T6841] R13: 00007ffd947d5f30 R14: 000000000000ead1 R15: 00007ffd947d5f40 [ 60.469860][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.479080][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.485112][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.494220][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.504457][ T1154] Call Trace: [ 60.507762][ T1154] dump_stack+0x18f/0x20d [ 60.512114][ T1154] check_preemption_disabled+0x20d/0x220 [ 60.517759][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.522892][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.528366][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.534725][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.540023][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.544903][ T1154] ? down_write_killable+0x170/0x170 [ 60.550194][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.555662][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 60.560523][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.565734][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.571461][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.577622][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.583270][ T1154] ext4_writepages+0x1a7b/0x33c0 [ 60.588240][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.593916][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.599556][ T1154] ? do_writepages+0xfa/0x2a0 [ 60.604234][ T1154] do_writepages+0xfa/0x2a0 [ 60.608746][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 60.614377][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 60.619488][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 60.624773][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 60.629682][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.635400][ T1154] ? collapse_file+0x35a2/0x4330 [ 60.640505][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.646591][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.651798][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.657789][ T1154] collapse_file+0x35ac/0x4330 [ 60.662699][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 60.668077][ T1154] ? khugepaged+0x2506/0x3fc0 [ 60.672767][ T1154] ? xas_find+0x31a/0x880 [ 60.677098][ T1154] ? check_preemption_disabled+0x38/0x220 [ 60.682907][ T1154] khugepaged+0x3041/0x3fc0 [ 60.687550][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.693436][ T1154] ? lock_downgrade+0x840/0x840 [ 60.698290][ T1154] ? finish_wait+0x260/0x260 [ 60.702873][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.708674][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.714660][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 60.719679][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.725307][ T1154] kthread+0x3b5/0x4a0 [ 60.729377][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.735100][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.740823][ T1154] ret_from_fork+0x1f/0x30 [ 60.779812][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.789219][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.795238][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.804348][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.814428][ T1154] Call Trace: [ 60.817735][ T1154] dump_stack+0x18f/0x20d [ 60.822170][ T1154] check_preemption_disabled+0x20d/0x220 [ 60.827880][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.833006][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.838471][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.844633][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.849930][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.854804][ T1154] ? down_write_killable+0x170/0x170 [ 60.860095][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.865562][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 60.870439][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.875662][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.881308][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.887299][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.892768][ T1154] ext4_writepages+0x1a7b/0x33c0 [ 60.897740][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.903601][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.909238][ T1154] ? do_writepages+0xfa/0x2a0 [ 60.913917][ T1154] do_writepages+0xfa/0x2a0 [ 60.918431][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 60.924158][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 60.929228][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 60.934435][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 60.939294][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.945018][ T1154] ? collapse_file+0x35a2/0x4330 [ 60.949960][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.956043][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.961247][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.967243][ T1154] collapse_file+0x35ac/0x4330 [ 60.972120][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 60.977495][ T1154] ? khugepaged+0x2506/0x3fc0 [ 60.982185][ T1154] ? xas_find+0x31a/0x880 [ 60.986522][ T1154] ? check_preemption_disabled+0x38/0x220 [ 60.992407][ T1154] khugepaged+0x3041/0x3fc0 [ 60.996943][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.002585][ T1154] ? lock_downgrade+0x840/0x840 [ 61.007440][ T1154] ? finish_wait+0x260/0x260 [ 61.012072][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.017972][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.023963][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 61.028995][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.034635][ T1154] kthread+0x3b5/0x4a0 [ 61.038712][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.044607][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.050334][ T1154] ret_from_fork+0x1f/0x30 [ 61.174645][ T26] tipc: TX() has been purged, node left! executing program [ 62.562326][ T6827] can: request_module (can-proto-0) failed. [ 63.120181][ T6827] can: request_module (can-proto-0) failed. [ 63.131591][ T6827] can: request_module (can-proto-0) failed.