[ 44.189193][ T1] R10: 000055b8812c8340 R11: 0000000000000246 R12: 000055b8812c8350 [ 44.197182][ T1] R13: 0000000000000000 R14: 0000000000000017 R15: 00007fffbf9b9f10 [ OK ] Started Daily apt download activities. [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ 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... Starting Load/Save RF Kill Switch Status... [ 54.156077][ T6763] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6763 [ 54.166320][ T6763] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 54.172964][ T6763] CPU: 0 PID: 6763 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 54.181347][ T6763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.191431][ T6763] Call Trace: [ 54.194734][ T6763] dump_stack+0x188/0x20d [ 54.199081][ T6763] debug_smp_processor_id.cold+0x88/0x9b [ 54.204965][ T6763] ext4_mb_new_blocks+0xa77/0x3b30 [ 54.210120][ T6763] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.215599][ T6763] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.221464][ T6763] ext4_ext_map_blocks+0x2044/0x3410 [ 54.227015][ T6763] ? ext4_ext_release+0x10/0x10 [ 54.231907][ T6763] ? __down_timeout+0x2d0/0x2d0 [ 54.236760][ T6763] ? ext4_es_lookup_extent+0x41d/0xd30 [ 54.242217][ T6763] ext4_map_blocks+0x4cb/0x1640 [[ 54.247098][ T6763] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.252373][ T6763] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.257941][ T6763] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.263943][ T6763] ? prandom_u32_state+0xe/0x170 [ 54.268900][ T6763] ? __brelse+0x84/0xa0 [ 54.273257][ T6763] ? __ext4_new_inode+0x144/0x57c0  OK [0[ 54.278373][ T6763] ext4_getblk+0xad/0x520 m[ 54.284271][ T6763] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 54.290085][ T6763] ? ext4_free_inode+0x17e0/0x17e0 ] [ 54.295218][ T6763] ext4_bread+0x7c/0x380 [ 54.299622][ T6763] ? ext4_getblk+0x520/0x520 [ 54.304404][ T6763] ? dqget+0xff0/0xff0 [ 54.308492][ T6763] ext4_append+0x153/0x360 Started Update U[ 54.312916][ T6763] ext4_mkdir+0x5e0/0xdf0 [ 54.318887][ T6763] ? ext4_rmdir+0xde0/0xde0 TMP about System[ 54.323467][ T6763] ? security_inode_permission+0xc4/0xf0 [ 54.330541][ T6763] vfs_mkdir+0x419/0x690 Runlevel Change[ 54.334878][ T6763] do_mkdirat+0x21e/0x280 [ 54.340595][ T6763] ? __ia32_sys_mknod+0xb0/0xb0 s. [ 54.345663][ T6763] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.352014][ T6763] ? do_syscall_64+0x21/0x7d0 [ 54.356706][ T6763] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.362705][ T6763] do_syscall_64+0xf6/0x7d0 [ 54.367235][ T6763] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 54.373127][ T6763] RIP: 0033:0x7f74abf90687 [ 54.377524][ T6763] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 [ 54.397253][ T6763] RSP: 002b:00007ffebcf2a638 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.405667][ T6763] RAX: ffffffffffffffda RBX: 000056491d614985 RCX: 00007f74abf90687 [ 54.413647][ T6763] RDX: 00007ffebcf2a500 RSI: 00000000000001ed RDI: 000056491d614985 [ 54.421631][ T6763] RBP: 00007f74abf90680 R08: 0000000000000100 R09: 0000000000000000 [ 54.429599][ T6763] R10: 000056491d614980 R11: 0000000000000246 R12: 00000000000001ed [ 54.437553][ T6763] R13: 00007ffebcf2a7c0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 58.116541][ T227] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/227 [ 58.126181][ T227] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.132066][ T227] CPU: 1 PID: 227 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 58.140359][ T227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.150414][ T227] Workqueue: writeback wb_workfn (flush-8:0) [ 58.156386][ T227] Call Trace: [ 58.159700][ T227] dump_stack+0x188/0x20d [ 58.164033][ T227] debug_smp_processor_id.cold+0x88/0x9b [ 58.169778][ T227] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.174911][ T227] ? __kmalloc+0x62f/0x7a0 [ 58.179334][ T227] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.187040][ T227] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.192781][ T227] ext4_ext_map_blocks+0x2044/0x3410 [ 58.198054][ T227] ? ext4_ext_release+0x10/0x10 [ 58.202898][ T227] ? __down_timeout+0x2d0/0x2d0 [ 58.207757][ T227] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.214183][ T227] ? debug_smp_processor_id+0x2f/0x185 [ 58.219633][ T227] ext4_map_blocks+0x4cb/0x1640 [ 58.224489][ T227] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.229895][ T227] ? debug_smp_processor_id+0x2f/0x185 [ 58.235376][ T227] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.240953][ T227] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.247077][ T227] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.252529][ T227] ext4_writepages+0x1ab7/0x3400 [ 58.257476][ T227] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.263105][ T227] ? __lock_acquire+0x2224/0x48a0 [ 58.268114][ T227] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.274079][ T227] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.280058][ T227] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.285686][ T227] ? do_writepages+0xfa/0x2a0 [ 58.290358][ T227] do_writepages+0xfa/0x2a0 [ 58.294846][ T227] ? page_writeback_cpu_online+0x10/0x10 [ 58.300485][ T227] ? debug_smp_processor_id+0x2f/0x185 [ 58.306073][ T227] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.311609][ T227] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.317602][ T227] ? lock_downgrade+0x840/0x840 [ 58.322539][ T227] __writeback_single_inode+0x12a/0x1410 [ 58.328200][ T227] ? _raw_spin_unlock+0x24/0x40 [ 58.333030][ T227] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 58.339013][ T227] writeback_sb_inodes+0x515/0xdd0 [ 58.344239][ T227] ? __writeback_single_inode+0x1410/0x1410 [ 58.350263][ T227] __writeback_inodes_wb+0xc3/0x250 [ 58.355454][ T227] wb_writeback+0x910/0xd90 [ 58.359941][ T227] ? print_usage_bug+0x240/0x240 [ 58.364858][ T227] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 58.371164][ T227] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 58.377041][ T227] ? cpumask_next+0x3c/0x40 [ 58.381523][ T227] ? get_nr_dirty_inodes+0xd6/0x130 [ 58.386703][ T227] wb_workfn+0xadf/0x10d0 [ 58.391018][ T227] ? inode_wait_for_writeback+0x30/0x30 [ 58.396546][ T227] ? debug_smp_processor_id+0x2f/0x185 [ 58.402003][ T227] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.407528][ T227] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.413684][ T227] process_one_work+0x965/0x16a0 [ 58.418676][ T227] ? lock_release+0x800/0x800 [ 58.423388][ T227] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.428784][ T227] ? rwlock_bug.part.0+0x90/0x90 [ 58.433726][ T227] worker_thread+0x96/0xe10 [ 58.438220][ T227] ? process_one_work+0x16a0/0x16a0 [ 58.443415][ T227] kthread+0x388/0x470 [ 58.447462][ T227] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.453159][ T227] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.458857][ T227] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.78' (ECDSA) to the list of known hosts. 2020/06/13 06:43:56 fuzzer started 2020/06/13 06:43:56 connecting to host at 10.128.0.26:41465 2020/06/13 06:43:56 checking machine... 2020/06/13 06:43:56 checking revisions... 2020/06/13 06:43:56 testing simple program... [ 59.201079][ T6844] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6844 [ 59.210260][ T6844] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.216442][ T6844] CPU: 1 PID: 6844 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.224339][ T6844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.234447][ T6844] Call Trace: [ 59.237751][ T6844] dump_stack+0x188/0x20d [ 59.242331][ T6844] debug_smp_processor_id.cold+0x88/0x9b [ 59.247994][ T6844] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.254177][ T6844] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.259754][ T6844] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.265460][ T6844] ext4_ext_map_blocks+0x2044/0x3410 [ 59.270739][ T6844] ? ext4_ext_release+0x10/0x10 [ 59.275585][ T6844] ? __down_timeout+0x2d0/0x2d0 [ 59.280423][ T6844] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.285893][ T6844] ext4_map_blocks+0x4cb/0x1640 [ 59.290747][ T6844] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.295950][ T6844] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.301659][ T6844] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.307646][ T6844] ? prandom_u32_state+0xe/0x170 [ 59.312590][ T6844] ? __brelse+0x84/0xa0 [ 59.316768][ T6844] ? __ext4_new_inode+0x144/0x57c0 [ 59.321877][ T6844] ext4_getblk+0xad/0x520 [ 59.326195][ T6844] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.331932][ T6844] ? ext4_free_inode+0x17e0/0x17e0 [ 59.337034][ T6844] ext4_bread+0x7c/0x380 [ 59.341263][ T6844] ? ext4_getblk+0x520/0x520 [ 59.345834][ T6844] ? dqget+0xff0/0xff0 [ 59.349893][ T6844] ext4_append+0x153/0x360 [ 59.354296][ T6844] ext4_mkdir+0x5e0/0xdf0 [ 59.358645][ T6844] ? ext4_rmdir+0xde0/0xde0 [ 59.363177][ T6844] ? security_inode_permission+0xc4/0xf0 [ 59.368851][ T6844] vfs_mkdir+0x419/0x690 [ 59.373089][ T6844] do_mkdirat+0x21e/0x280 [ 59.377445][ T6844] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.382287][ T6844] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.388256][ T6844] ? do_syscall_64+0x21/0x7d0 [ 59.392942][ T6844] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.398998][ T6844] do_syscall_64+0xf6/0x7d0 [ 59.403506][ T6844] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.409397][ T6844] RIP: 0033:0x4b02a0 [ 59.413274][ T6844] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 59.433046][ T6844] RSP: 002b:000000c0000db4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.441448][ T6844] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.449516][ T6844] RDX: 00000000000001c0 RSI: 000000c00009e320 RDI: ffffffffffffff9c [ 59.457484][ T6844] RBP: 000000c0000db510 R08: 0000000000000000 R09: 0000000000000000 [ 59.465465][ T6844] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.473534][ T6844] R13: 000000000000001a R14: 0000000000000019 R15: 0000000000000100 [ 59.499323][ T6847] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6847 [ 59.508989][ T6847] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.514898][ T6847] CPU: 1 PID: 6847 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.523150][ T6847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.533224][ T6847] Call Trace: [ 59.536525][ T6847] dump_stack+0x188/0x20d [ 59.540878][ T6847] debug_smp_processor_id.cold+0x88/0x9b [ 59.546530][ T6847] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.551679][ T6847] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.557161][ T6847] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.563008][ T6847] ext4_ext_map_blocks+0x2044/0x3410 [ 59.568324][ T6847] ? ext4_ext_release+0x10/0x10 [ 59.573245][ T6847] ? __down_timeout+0x2d0/0x2d0 [ 59.578357][ T6847] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.583837][ T6847] ext4_map_blocks+0x4cb/0x1640 [ 59.588689][ T6847] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.593888][ T6847] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.600218][ T6847] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.606185][ T6847] ? prandom_u32_state+0xe/0x170 [ 59.611110][ T6847] ? __brelse+0x84/0xa0 [ 59.615244][ T6847] ? __ext4_new_inode+0x144/0x57c0 [ 59.621410][ T6847] ext4_getblk+0xad/0x520 [ 59.625745][ T6847] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.631455][ T6847] ? ext4_free_inode+0x17e0/0x17e0 [ 59.636716][ T6847] ext4_bread+0x7c/0x380 [ 59.641138][ T6847] ? ext4_getblk+0x520/0x520 [ 59.645740][ T6847] ? dqget+0xff0/0xff0 [ 59.649821][ T6847] ext4_append+0x153/0x360 [ 59.654239][ T6847] ext4_mkdir+0x5e0/0xdf0 [ 59.658566][ T6847] ? ext4_rmdir+0xde0/0xde0 [ 59.663050][ T6847] ? security_inode_permission+0xc4/0xf0 [ 59.668666][ T6847] vfs_mkdir+0x419/0x690 [ 59.672892][ T6847] do_mkdirat+0x21e/0x280 [ 59.677205][ T6847] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.682055][ T6847] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.688015][ T6847] ? do_syscall_64+0x21/0x7d0 [ 59.692759][ T6847] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.698744][ T6847] do_syscall_64+0xf6/0x7d0 [ 59.703259][ T6847] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.709154][ T6847] RIP: 0033:0x45bee7 [ 59.713138][ T6847] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 59.732871][ T6847] RSP: 002b:00007ffdafa5e3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.741271][ T6847] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.749236][ T6847] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffdafa5e590 [ 59.757186][ T6847] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002f00 [ 59.765144][ T6847] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.773096][ T6847] R13: 00007ffdafa5e590 R14: 8421084210842109 R15: 00007ffdafa5e59c [ 59.857150][ T6848] IPVS: ftp: loaded support on port[0] = 21 [ 59.896328][ T6848] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6848 [ 59.905754][ T6848] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.911871][ T6848] CPU: 0 PID: 6848 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.920105][ T6848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.930369][ T6848] Call Trace: [ 59.933667][ T6848] dump_stack+0x188/0x20d [ 59.937989][ T6848] debug_smp_processor_id.cold+0x88/0x9b [ 59.943673][ T6848] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.948772][ T6848] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.954243][ T6848] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.959948][ T6848] ext4_ext_map_blocks+0x2044/0x3410 [ 59.965217][ T6848] ? ext4_ext_release+0x10/0x10 [ 59.970059][ T6848] ? __down_timeout+0x2d0/0x2d0 [ 59.975043][ T6848] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.980509][ T6848] ext4_map_blocks+0x4cb/0x1640 [ 59.985345][ T6848] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.990520][ T6848] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.996053][ T6848] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.002012][ T6848] ? prandom_u32_state+0xe/0x170 [ 60.006929][ T6848] ? __brelse+0x84/0xa0 [ 60.011064][ T6848] ? __ext4_new_inode+0x144/0x57c0 [ 60.016157][ T6848] ext4_getblk+0xad/0x520 [ 60.020522][ T6848] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.026338][ T6848] ? ext4_free_inode+0x17e0/0x17e0 [ 60.031592][ T6848] ext4_bread+0x7c/0x380 [ 60.035846][ T6848] ? ext4_getblk+0x520/0x520 [ 60.040427][ T6848] ? dqget+0xff0/0xff0 [ 60.044581][ T6848] ext4_append+0x153/0x360 [ 60.049001][ T6848] ext4_mkdir+0x5e0/0xdf0 [ 60.053482][ T6848] ? ext4_rmdir+0xde0/0xde0 [ 60.057994][ T6848] ? security_inode_permission+0xc4/0xf0 [ 60.063711][ T6848] vfs_mkdir+0x419/0x690 [ 60.067960][ T6848] do_mkdirat+0x21e/0x280 [ 60.072333][ T6848] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.077169][ T6848] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.083146][ T6848] ? do_syscall_64+0x21/0x7d0 [ 60.087803][ T6848] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.093792][ T6848] do_syscall_64+0xf6/0x7d0 [ 60.098303][ T6848] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.104186][ T6848] RIP: 0033:0x45bee7 [ 60.108062][ T6848] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.127644][ T6848] RSP: 002b:00007ffdafa5e2a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.136038][ T6848] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.143995][ T6848] RDX: 00007ffdafa5e2f3 RSI: 00000000000001ff RDI: 00007ffdafa5e2f0 [ 60.152020][ T6848] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.159988][ T6848] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 60.167939][ T6848] R13: 00007ffdafa5e2e0 R14: 0000000000000000 R15: 00007ffdafa5e2f0 [ 60.219875][ T6848] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6848 [ 60.229515][ T6848] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.235437][ T6848] CPU: 0 PID: 6848 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.245419][ T6848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.255484][ T6848] Call Trace: [ 60.258789][ T6848] dump_stack+0x188/0x20d [ 60.263299][ T6848] debug_smp_processor_id.cold+0x88/0x9b [ 60.269129][ T6848] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.274293][ T6848] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.279766][ T6848] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.285505][ T6848] ext4_ext_map_blocks+0x2044/0x3410 [ 60.290818][ T6848] ? ext4_ext_release+0x10/0x10 [ 60.295766][ T6848] ? __down_timeout+0x2d0/0x2d0 [ 60.300726][ T6848] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.306179][ T6848] ext4_map_blocks+0x4cb/0x1640 [ 60.311021][ T6848] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.316208][ T6848] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.321790][ T6848] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.328107][ T6848] ? prandom_u32_state+0xe/0x170 [ 60.333050][ T6848] ? __brelse+0x84/0xa0 [ 60.340677][ T6848] ? __ext4_new_inode+0x144/0x57c0 [ 60.345784][ T6848] ext4_getblk+0xad/0x520 [ 60.350094][ T6848] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.355823][ T6848] ? ext4_free_inode+0x17e0/0x17e0 [ 60.361884][ T6848] ext4_bread+0x7c/0x380 [ 60.366105][ T6848] ? ext4_getblk+0x520/0x520 [ 60.370672][ T6848] ? dqget+0xff0/0xff0 [ 60.374738][ T6848] ext4_append+0x153/0x360 [ 60.379137][ T6848] ext4_mkdir+0x5e0/0xdf0 [ 60.383466][ T6848] ? ext4_rmdir+0xde0/0xde0 [ 60.387949][ T6848] ? security_inode_permission+0xc4/0xf0 [ 60.393585][ T6848] vfs_mkdir+0x419/0x690 [ 60.397996][ T6848] do_mkdirat+0x21e/0x280 [ 60.402322][ T6848] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.407167][ T6848] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.413129][ T6848] ? do_syscall_64+0x21/0x7d0 [ 60.417785][ T6848] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.423748][ T6848] do_syscall_64+0xf6/0x7d0 [ 60.428248][ T6848] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.434118][ T6848] RIP: 0033:0x45bee7 [ 60.438007][ T6848] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.457617][ T6848] RSP: 002b:00007ffdafa5e2a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 2020/06/13 06:43:58 building call list... [ 60.466007][ T6848] RAX: ffffffffffffffda RBX: 000000000000eb38 RCX: 000000000045bee7 [ 60.473972][ T6848] RDX: 00007ffdafa5e2f3 RSI: 00000000000001ff RDI: 00007ffdafa5e2f0 [ 60.481941][ T6848] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.489888][ T6848] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.497838][ T6848] R13: 00007ffdafa5e2e0 R14: 000000000000eb25 R15: 00007ffdafa5e2f0 [ 60.756066][ T227] tipc: TX() has been purged, node left! executing program [ 62.238842][ T6830] can: request_module (can-proto-0) failed. [ 62.761268][ T6830] can: request_module (can-proto-0) failed. [ 62.774158][ T6830] can: request_module (can-proto-0) failed. [ 62.963894][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 62.974264][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.980416][ T1154] CPU: 1 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.988311][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.998385][ T1154] Call Trace: [ 63.001693][ T1154] dump_stack+0x188/0x20d [ 63.006043][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 63.011694][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.016822][ T1154] ? __kmalloc+0x62f/0x7a0 [ 63.021255][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.021289][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.032550][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 63.038033][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.042964][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 63.047852][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.053297][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.058135][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.063313][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 63.068754][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.074302][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.080262][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.085737][ T1154] ext4_writepages+0x1ab7/0x3400 [ 63.090674][ T1154] ? mark_lock+0x30/0xdd0 [ 63.094991][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.100618][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.106247][ T1154] ? do_writepages+0xfa/0x2a0 [ 63.110903][ T1154] do_writepages+0xfa/0x2a0 [ 63.115493][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.121108][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 63.126148][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.131329][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.136160][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.141859][ T1154] ? collapse_file+0x3575/0x4300 [ 63.146776][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.152851][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.158054][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.164357][ T1154] collapse_file+0x357f/0x4300 [ 63.169130][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 63.174487][ T1154] ? khugepaged+0x24fa/0x3f80 [ 63.179157][ T1154] khugepaged+0x3049/0x3f80 [ 63.183675][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.189482][ T1154] ? lock_downgrade+0x840/0x840 [ 63.194339][ T1154] ? finish_wait+0x260/0x260 [ 63.199068][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.204870][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.211020][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.216046][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.221704][ T1154] kthread+0x388/0x470 [ 63.225932][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.231653][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.237424][ T1154] ret_from_fork+0x24/0x30 [ 63.309801][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 63.319102][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.325088][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.332979][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.343020][ T1154] Call Trace: [ 63.346319][ T1154] dump_stack+0x188/0x20d [ 63.350648][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 63.356284][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.361401][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.366847][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.372981][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 63.378255][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.383095][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 63.388016][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.393469][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.398569][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.403759][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 63.409216][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.414747][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.421430][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.426999][ T1154] ext4_writepages+0x1ab7/0x3400 [ 63.431955][ T1154] ? mark_lock+0x30/0xdd0 [ 63.436296][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.441958][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.447939][ T1154] ? do_writepages+0xfa/0x2a0 [ 63.452674][ T1154] do_writepages+0xfa/0x2a0 [ 63.457238][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.462912][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 63.467921][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.473097][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.477933][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.483631][ T1154] ? collapse_file+0x3575/0x4300 [ 63.488604][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.494655][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.499833][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.505814][ T1154] collapse_file+0x357f/0x4300 [ 63.510568][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 63.515936][ T1154] ? khugepaged+0x24fa/0x3f80 [ 63.520620][ T1154] khugepaged+0x3049/0x3f80 [ 63.525130][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.530769][ T1154] ? lock_downgrade+0x840/0x840 [ 63.535600][ T1154] ? finish_wait+0x260/0x260 [ 63.540171][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.545982][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.551973][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.556995][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.562609][ T1154] kthread+0x388/0x470 [ 63.567026][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.572733][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.578563][ T1154] ret_from_fork+0x24/0x30 [ 63.607056][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 63.616179][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.622078][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.629967][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.640326][ T1154] Call Trace: [ 63.643612][ T1154] dump_stack+0x188/0x20d [ 63.647929][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 63.653541][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.658670][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.664111][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.670269][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 63.675651][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.680563][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 63.685422][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.690902][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.695747][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.701042][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 63.706491][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.712023][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.718084][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.723566][ T1154] ext4_writepages+0x1ab7/0x3400 [ 63.728514][ T1154] ? mark_lock+0x30/0xdd0 [ 63.732997][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.738990][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.744603][ T1154] ? do_writepages+0xfa/0x2a0 [ 63.749263][ T1154] do_writepages+0xfa/0x2a0 [ 63.753753][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.759388][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 63.764400][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.769599][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.774434][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.780137][ T1154] ? collapse_file+0x3575/0x4300 [ 63.785079][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.791134][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.796343][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.802486][ T1154] collapse_file+0x357f/0x4300 [ 63.807284][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 63.812809][ T1154] ? khugepaged+0x24fa/0x3f80 [ 63.817500][ T1154] khugepaged+0x3049/0x3f80 [ 63.822020][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.827981][ T1154] ? lock_downgrade+0x840/0x840 [ 63.832929][ T1154] ? finish_wait+0x260/0x260 [ 63.837546][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.843359][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.849325][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.854350][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.860235][ T1154] kthread+0x388/0x470 [ 63.864318][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.870033][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.875824][ T1154] ret_from_fork+0x24/0x30