[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. [ 51.546307][ T4872] systemd-udevd (4872) used greatest stack depth: 21560 bytes left [ 52.369659][ T6725] scp (6725) used greatest stack depth: 21440 bytes left Starting Load/Save RF Kill Switch Status... [ 53.409221][ T6733] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6733 [ 53.418938][ T6733] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.424884][ T6733] CPU: 0 PID: 6733 Comm: systemd-rfkill Not tainted 5.7.0-next-20200605-syzkaller #0 [ 53.434517][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.444565][ T6733] Call Trace: [ 53.447860][ T6733] dump_stack+0x18f/0x20d [ 53.452175][ T6733] check_preemption_disabled+0x20d/0x220 [ 53.457784][ T6733] ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.462878][ T6733] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.468314][ T6733] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.474064][ T6733] ext4_ext_map_blocks+0x201b/0x33e0 [ 53.479330][ T6733] ? ext4_ext_release+0x10/0x10 [ 53.484169][ T6733] ? down_write_killable+0x170/0x170 [ 53.489429][ T6733] ? ext4_es_lookup_extent+0x41d/0xd10 [ 53.494866][ T6733] ext4_map_blocks+0x4cb/0x1640 [ 53.499736][ T6733] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.504956][ T6733] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.510495][ T6733] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.516468][ T6733] ? prandom_u32_state+0xe/0x170 [ 53.521390][ T6733] ? __brelse+0x84/0xa0 [ 53.525523][ T6733] ? __ext4_new_inode+0x144/0x55e0 [ 53.530619][ T6733] ext4_getblk+0xad/0x520 [ 53.534934][ T6733] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.540829][ T6733] ? ext4_free_inode+0x1700/0x1700 [ 53.545928][ T6733] ext4_bread+0x7c/0x380 [ 53.550154][ T6733] ? ext4_getblk+0x520/0x520 [ 53.554767][ T6733] ? dquot_get_next_dqblk+0x180/0x180 [ 53.560116][ T6733] ext4_append+0x153/0x360 [ 53.564514][ T6733] ext4_mkdir+0x5e0/0xdf0 [ 53.568866][ T6733] ? ext4_rmdir+0xde0/0xde0 [ 53.573397][ T6733] ? security_inode_permission+0xc4/0xf0 [ 53.579010][ T6733] vfs_mkdir+0x419/0x690 [ 53.583233][ T6733] do_mkdirat+0x21e/0x280 [ 53.587540][ T6733] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.592380][ T6733] ? do_syscall_64+0x1c/0xe0 [ 53.596957][ T6733] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.602931][ T6733] do_syscall_64+0x60/0xe0 [ 53.607322][ T6733] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.613205][ T6733] RIP: 0033:0x7f6ba6c97687 [ 53.617599][ T6733] Code: Bad RIP value. [ 53.621637][ T6733] RSP: 002b:00007fffa6c3e418 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.630034][ T6733] RAX: ffffffffffffffda RBX: 0000563cdaede985 RCX: 00007f6ba6c97687 [ 53.637977][ T6733] RDX: 00007fffa6c3e2e0 RSI: 00000000000001ed RDI: 0000563cdaede985 [ 53.645936][ T6733] RBP: 00007f6ba6c97680 R08: 0000000000000100 R09: 0000000000000000 [ 53.653882][ T6733] R10: 0000563cdaede980 R11: 0000000000000246 R12: 00000000000001ed [ 53.661826][ T6733] R13: 00007fffa6c3e5a0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.710665][ T79] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:3/79 [ 56.719707][ T79] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.725696][ T79] CPU: 0 PID: 79 Comm: kworker/u4:3 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 56.734792][ T79] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.744836][ T79] Workqueue: writeback wb_workfn (flush-8:0) [ 56.750789][ T79] Call Trace: [ 56.754057][ T79] dump_stack+0x18f/0x20d [ 56.758367][ T79] check_preemption_disabled+0x20d/0x220 [ 56.764033][ T79] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.769135][ T79] ? ext4_find_extent+0x81a/0xad0 [ 56.774139][ T79] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.779589][ T79] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.785313][ T79] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.790592][ T79] ? ext4_ext_release+0x10/0x10 [ 56.795453][ T79] ? down_write_killable+0x170/0x170 [ 56.800711][ T79] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.806147][ T79] ext4_map_blocks+0x4cb/0x1640 [ 56.810993][ T79] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.816169][ T79] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.821690][ T79] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.827643][ T79] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.833079][ T79] ext4_writepages+0x1a7b/0x33c0 [ 56.838003][ T79] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.843610][ T79] ? __lock_acquire+0x2224/0x48b0 [ 56.848614][ T79] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.854584][ T79] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.860542][ T79] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.866146][ T79] ? do_writepages+0xfa/0x2a0 [ 56.870799][ T79] do_writepages+0xfa/0x2a0 [ 56.875280][ T79] ? page_writeback_cpu_online+0x10/0x10 [ 56.880905][ T79] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.886425][ T79] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.892396][ T79] ? lock_downgrade+0x840/0x840 [ 56.897227][ T79] __writeback_single_inode+0x12a/0x13d0 [ 56.902836][ T79] ? _raw_spin_unlock+0x24/0x40 [ 56.907663][ T79] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.913620][ T79] writeback_sb_inodes+0x515/0xdc0 [ 56.918711][ T79] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.924603][ T79] __writeback_inodes_wb+0xc3/0x250 [ 56.929791][ T79] wb_writeback+0x8db/0xd50 [ 56.934274][ T79] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.940580][ T79] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.946464][ T79] ? cpumask_next+0x3c/0x40 [ 56.950951][ T79] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.956126][ T79] wb_workfn+0xab3/0x1090 [ 56.960450][ T79] ? inode_wait_for_writeback+0x30/0x30 [ 56.965974][ T79] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.971507][ T79] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.977465][ T79] process_one_work+0x965/0x1690 [ 56.982413][ T79] ? lock_release+0x800/0x800 [ 56.987080][ T79] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.992427][ T79] ? rwlock_bug.part.0+0x90/0x90 [ 56.997345][ T79] worker_thread+0x96/0xe10 [ 57.001844][ T79] ? process_one_work+0x1690/0x1690 [ 57.007016][ T79] kthread+0x3b5/0x4a0 [ 57.011058][ T79] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.016752][ T79] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.022447][ T79] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.1.2' (ECDSA) to the list of known hosts. 2020/06/07 14:10:01 fuzzer started 2020/06/07 14:10:01 connecting to host at 10.128.0.26:41919 2020/06/07 14:10:01 checking machine... 2020/06/07 14:10:01 checking revisions... 2020/06/07 14:10:01 testing simple program... [ 59.105814][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6801 [ 59.114916][ T6801] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.121030][ T6801] CPU: 0 PID: 6801 Comm: syz-fuzzer Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.130139][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.140175][ T6801] Call Trace: [ 59.143502][ T6801] dump_stack+0x18f/0x20d [ 59.147828][ T6801] check_preemption_disabled+0x20d/0x220 [ 59.153440][ T6801] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.158533][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.163968][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.169666][ T6801] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.174943][ T6801] ? ext4_ext_release+0x10/0x10 [ 59.179799][ T6801] ? down_write_killable+0x170/0x170 [ 59.185059][ T6801] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.190495][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 59.195345][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.200536][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.206060][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.212031][ T6801] ? prandom_u32_state+0xe/0x170 [ 59.216953][ T6801] ? __brelse+0x84/0xa0 [ 59.221084][ T6801] ? __ext4_new_inode+0x144/0x55e0 [ 59.226170][ T6801] ext4_getblk+0xad/0x520 [ 59.230490][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.236199][ T6801] ? ext4_free_inode+0x1700/0x1700 [ 59.241284][ T6801] ext4_bread+0x7c/0x380 [ 59.245498][ T6801] ? ext4_getblk+0x520/0x520 [ 59.250062][ T6801] ? dquot_get_next_dqblk+0x180/0x180 [ 59.255417][ T6801] ext4_append+0x153/0x360 [ 59.259811][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 59.264119][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 59.268598][ T6801] ? security_inode_permission+0xc4/0xf0 [ 59.274233][ T6801] vfs_mkdir+0x419/0x690 [ 59.278451][ T6801] do_mkdirat+0x21e/0x280 [ 59.282755][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.287580][ T6801] ? do_syscall_64+0x1c/0xe0 [ 59.292145][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.298117][ T6801] do_syscall_64+0x60/0xe0 [ 59.302780][ T6801] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.308655][ T6801] RIP: 0033:0x4b02a0 [ 59.312560][ T6801] Code: Bad RIP value. [ 59.316698][ T6801] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.325100][ T6801] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.333056][ T6801] RDX: 00000000000001c0 RSI: 000000c0000cebe0 RDI: ffffffffffffff9c [ 59.341098][ T6801] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 59.349061][ T6801] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.357011][ T6801] R13: 0000000000000060 R14: 000000000000005f R15: 0000000000000100 [ 59.372662][ T6815] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6815 [ 59.382120][ T6815] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.387994][ T6815] CPU: 0 PID: 6815 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.397414][ T6815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.407453][ T6815] Call Trace: [ 59.410722][ T6815] dump_stack+0x18f/0x20d [ 59.415044][ T6815] check_preemption_disabled+0x20d/0x220 [ 59.420653][ T6815] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.425752][ T6815] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.431184][ T6815] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.436882][ T6815] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.442159][ T6815] ? ext4_ext_release+0x10/0x10 [ 59.447012][ T6815] ? down_write_killable+0x170/0x170 [ 59.452270][ T6815] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.457703][ T6815] ext4_map_blocks+0x4cb/0x1640 [ 59.462545][ T6815] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.467737][ T6815] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.473258][ T6815] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.479211][ T6815] ? prandom_u32_state+0xe/0x170 [ 59.484131][ T6815] ? __brelse+0x84/0xa0 [ 59.488276][ T6815] ? __ext4_new_inode+0x144/0x55e0 [ 59.493378][ T6815] ext4_getblk+0xad/0x520 [ 59.497693][ T6815] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.503396][ T6815] ? ext4_free_inode+0x1700/0x1700 [ 59.508499][ T6815] ext4_bread+0x7c/0x380 [ 59.512787][ T6815] ? ext4_getblk+0x520/0x520 [ 59.517357][ T6815] ? dquot_get_next_dqblk+0x180/0x180 [ 59.522716][ T6815] ext4_append+0x153/0x360 [ 59.527113][ T6815] ext4_mkdir+0x5e0/0xdf0 [ 59.531469][ T6815] ? ext4_rmdir+0xde0/0xde0 [ 59.535951][ T6815] ? security_inode_permission+0xc4/0xf0 [ 59.541564][ T6815] vfs_mkdir+0x419/0x690 [ 59.545786][ T6815] do_mkdirat+0x21e/0x280 [ 59.550113][ T6815] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.554940][ T6815] ? do_syscall_64+0x1c/0xe0 [ 59.559513][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.565482][ T6815] do_syscall_64+0x60/0xe0 [ 59.569888][ T6815] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.575767][ T6815] RIP: 0033:0x45bee7 [ 59.579643][ T6815] Code: Bad RIP value. [ 59.583691][ T6815] RSP: 002b:00007ffee52827b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.592074][ T6815] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.600018][ T6815] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffee5282990 [ 59.607963][ T6815] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002bc0 [ 59.615906][ T6815] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.623860][ T6815] R13: 00007ffee5282990 R14: 8421084210842109 R15: 00007ffee528299c [ 59.704948][ T6816] IPVS: ftp: loaded support on port[0] = 21 [ 59.740989][ T6816] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6816 [ 59.750540][ T6816] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.756507][ T6816] CPU: 1 PID: 6816 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.765933][ T6816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.775962][ T6816] Call Trace: [ 59.779229][ T6816] dump_stack+0x18f/0x20d [ 59.783553][ T6816] check_preemption_disabled+0x20d/0x220 [ 59.789173][ T6816] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.794279][ T6816] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.799726][ T6816] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.805436][ T6816] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.810728][ T6816] ? ext4_ext_release+0x10/0x10 [ 59.815562][ T6816] ? down_write_killable+0x170/0x170 [ 59.820820][ T6816] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.826254][ T6816] ext4_map_blocks+0x4cb/0x1640 [ 59.831081][ T6816] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.836263][ T6816] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.841783][ T6816] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.847736][ T6816] ? prandom_u32_state+0xe/0x170 [ 59.852650][ T6816] ? __brelse+0x84/0xa0 [ 59.856804][ T6816] ? __ext4_new_inode+0x144/0x55e0 [ 59.861892][ T6816] ext4_getblk+0xad/0x520 [ 59.866194][ T6816] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.871892][ T6816] ? ext4_free_inode+0x1700/0x1700 [ 59.876989][ T6816] ext4_bread+0x7c/0x380 [ 59.881219][ T6816] ? ext4_getblk+0x520/0x520 [ 59.885798][ T6816] ? dquot_get_next_dqblk+0x180/0x180 [ 59.891149][ T6816] ext4_append+0x153/0x360 [ 59.895551][ T6816] ext4_mkdir+0x5e0/0xdf0 [ 59.899872][ T6816] ? ext4_rmdir+0xde0/0xde0 [ 59.904352][ T6816] ? security_inode_permission+0xc4/0xf0 [ 59.909971][ T6816] vfs_mkdir+0x419/0x690 [ 59.914199][ T6816] do_mkdirat+0x21e/0x280 [ 59.918502][ T6816] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.923342][ T6816] ? do_syscall_64+0x1c/0xe0 [ 59.927918][ T6816] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.933873][ T6816] do_syscall_64+0x60/0xe0 [ 59.938262][ T6816] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.944126][ T6816] RIP: 0033:0x45bee7 [ 59.947986][ T6816] Code: Bad RIP value. [ 59.952072][ T6816] RSP: 002b:00007ffee52826a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.960468][ T6816] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.968501][ T6816] RDX: 00007ffee52826f3 RSI: 00000000000001ff RDI: 00007ffee52826f0 [ 59.976447][ T6816] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.984391][ T6816] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.992336][ T6816] R13: 00007ffee52826e0 R14: 0000000000000000 R15: 00007ffee52826f0 [ 60.044278][ T6816] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6816 [ 60.053892][ T6816] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.059864][ T6816] CPU: 0 PID: 6816 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.069311][ T6816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.079361][ T6816] Call Trace: [ 60.082657][ T6816] dump_stack+0x18f/0x20d [ 60.087001][ T6816] check_preemption_disabled+0x20d/0x220 [ 60.092638][ T6816] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.097765][ T6816] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.103232][ T6816] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.108955][ T6816] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.114250][ T6816] ? ext4_ext_release+0x10/0x10 [ 60.119114][ T6816] ? down_write_killable+0x170/0x170 [ 60.124386][ T6816] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.129833][ T6816] ext4_map_blocks+0x4cb/0x1640 [ 60.134671][ T6816] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.139849][ T6816] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.145373][ T6816] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.151343][ T6816] ? prandom_u32_state+0xe/0x170 [ 60.156258][ T6816] ? __brelse+0x84/0xa0 [ 60.160405][ T6816] ? __ext4_new_inode+0x144/0x55e0 [ 60.165490][ T6816] ext4_getblk+0xad/0x520 [ 60.169812][ T6816] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.175508][ T6816] ? ext4_free_inode+0x1700/0x1700 [ 60.180595][ T6816] ext4_bread+0x7c/0x380 [ 60.184810][ T6816] ? ext4_getblk+0x520/0x520 [ 60.189374][ T6816] ? dquot_get_next_dqblk+0x180/0x180 [ 60.194824][ T6816] ext4_append+0x153/0x360 [ 60.199217][ T6816] ext4_mkdir+0x5e0/0xdf0 [ 60.203525][ T6816] ? ext4_rmdir+0xde0/0xde0 [ 60.208006][ T6816] ? security_inode_permission+0xc4/0xf0 [ 60.213632][ T6816] vfs_mkdir+0x419/0x690 [ 60.217853][ T6816] do_mkdirat+0x21e/0x280 [ 60.222160][ T6816] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.226989][ T6816] ? do_syscall_64+0x1c/0xe0 [ 60.231555][ T6816] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.237510][ T6816] do_syscall_64+0x60/0xe0 [ 60.241922][ T6816] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.247785][ T6816] RIP: 0033:0x45bee7 [ 60.251664][ T6816] Code: Bad RIP value. [ 60.255702][ T6816] RSP: 002b:00007ffee52826a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.264084][ T6816] RAX: ffffffffffffffda RBX: 000000000000ea80 RCX: 000000000045bee7 [ 60.272043][ T6816] RDX: 00007ffee52826f3 RSI: 00000000000001ff RDI: 00007ffee52826f0 [ 60.279994][ T6816] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 2020/06/07 14:10:03 building call list... [ 60.287941][ T6816] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.295893][ T6816] R13: 00007ffee52826e0 R14: 000000000000ea7a R15: 00007ffee52826f0 [ 60.549651][ T175] tipc: TX() has been purged, node left! executing program [ 62.156341][ T6814] can: request_module (can-proto-0) failed. [ 62.235349][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 62.244637][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.250619][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.259757][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.269802][ T1156] Call Trace: [ 62.273083][ T1156] dump_stack+0x18f/0x20d [ 62.277454][ T1156] check_preemption_disabled+0x20d/0x220 [ 62.283094][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.288278][ T1156] ? ext4_find_extent+0x81a/0xad0 [ 62.293370][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.298814][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.304605][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.310033][ T1156] ? ext4_ext_release+0x10/0x10 [ 62.314881][ T1156] ? down_write_killable+0x170/0x170 [ 62.320147][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.325589][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 62.330433][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.335646][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.341169][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.347124][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.352572][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 62.357486][ T1156] ? lock_release+0x710/0x800 [ 62.362146][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.367770][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.373377][ T1156] ? do_writepages+0xfa/0x2a0 [ 62.378030][ T1156] do_writepages+0xfa/0x2a0 [ 62.382511][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 62.388121][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 62.393138][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 62.398314][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 62.403144][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.408838][ T1156] ? collapse_file+0x35a2/0x4330 [ 62.413763][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.419819][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.425007][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.430965][ T1156] collapse_file+0x35ac/0x4330 [ 62.435715][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 62.441065][ T1156] ? khugepaged+0x2506/0x3fc0 [ 62.445723][ T1156] ? xas_find+0x31a/0x880 [ 62.450029][ T1156] ? check_preemption_disabled+0x38/0x220 [ 62.455727][ T1156] khugepaged+0x3041/0x3fc0 [ 62.460231][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.465856][ T1156] ? lock_downgrade+0x840/0x840 [ 62.470692][ T1156] ? finish_wait+0x260/0x260 [ 62.475267][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.481203][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.487164][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 62.492167][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.497777][ T1156] kthread+0x3b5/0x4a0 [ 62.501822][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.507519][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.513230][ T1156] ret_from_fork+0x1f/0x30 [ 62.559644][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 62.568687][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.574867][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.584016][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.594046][ T1156] Call Trace: [ 62.597319][ T1156] dump_stack+0x18f/0x20d [ 62.601632][ T1156] check_preemption_disabled+0x20d/0x220 [ 62.607309][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.612404][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.617838][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.623968][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.629244][ T1156] ? ext4_ext_release+0x10/0x10 [ 62.634344][ T1156] ? down_write_killable+0x170/0x170 [ 62.639611][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.645248][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 62.650087][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.655266][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.660796][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.666756][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.672195][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 62.677128][ T1156] ? lock_release+0x710/0x800 [ 62.681788][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.687424][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.693032][ T1156] ? do_writepages+0xfa/0x2a0 [ 62.697683][ T1156] do_writepages+0xfa/0x2a0 [ 62.702165][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 62.707772][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 62.712770][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 62.717947][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 62.722776][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.728472][ T1156] ? collapse_file+0x35a2/0x4330 [ 62.733384][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.739431][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.744609][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.750583][ T1156] collapse_file+0x35ac/0x4330 [ 62.755345][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 62.760706][ T1156] ? khugepaged+0x2506/0x3fc0 [ 62.765366][ T1156] ? xas_find+0x31a/0x880 [ 62.769688][ T1156] ? check_preemption_disabled+0x38/0x220 [ 62.775382][ T1156] khugepaged+0x3041/0x3fc0 [ 62.779877][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.785497][ T1156] ? lock_downgrade+0x840/0x840 [ 62.790325][ T1156] ? finish_wait+0x260/0x260 [ 62.794898][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.800692][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.806661][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 62.811675][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.817308][ T1156] kthread+0x3b5/0x4a0 [ 62.821352][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.827132][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.832839][ T1156] ret_from_fork+0x1f/0x30 [ 62.880386][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 62.889515][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.895417][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.904492][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.914527][ T1156] Call Trace: [ 62.917819][ T1156] dump_stack+0x18f/0x20d [ 62.922152][ T1156] check_preemption_disabled+0x20d/0x220 [ 62.927787][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.932903][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.938356][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.944506][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.949794][ T1156] ? ext4_ext_release+0x10/0x10 [ 62.954658][ T1156] ? down_write_killable+0x170/0x170 [ 62.959933][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.965390][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 62.970245][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.975448][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.980987][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.986959][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.992413][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 62.997349][ T1156] ? lock_release+0x710/0x800 [ 63.002092][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.007715][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.013367][ T1156] ? do_writepages+0xfa/0x2a0 [ 63.018016][ T1156] do_writepages+0xfa/0x2a0 [ 63.022499][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 63.028104][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 63.033146][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 63.038319][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 63.043148][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.048842][ T1156] ? collapse_file+0x35a2/0x4330 [ 63.053752][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.059799][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.064974][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.070931][ T1156] collapse_file+0x35ac/0x4330 [ 63.075693][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 63.081041][ T1156] ? khugepaged+0x2506/0x3fc0 [ 63.085698][ T1156] ? xas_find+0x31a/0x880 [ 63.090003][ T1156] ? check_preemption_disabled+0x38/0x220 [ 63.095699][ T1156] khugepaged+0x3041/0x3fc0 [ 63.100191][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.105799][ T1156] ? lock_downgrade+0x840/0x840 [ 63.110625][ T1156] ? finish_wait+0x260/0x260 [ 63.115190][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.120970][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.126931][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 63.131936][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.137541][ T1156] kthread+0x3b5/0x4a0 [ 63.141596][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.147290][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.152999][ T1156] ret_from_fork+0x1f/0x30 [ 63.355843][ T6814] can: request_module (can-proto-0) failed. [ 63.367423][ T6814] can: request_module (can-proto-0) failed.