[ OK ] Reached target Basic System. Starting OpenBSD Secure Shell server... Starting System Logging Service... Starting Permit User Sessions... [ OK ] Started Regular background program processing daemon. 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... [ 53.594892][ T6728] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6728 [ 53.604524][ T6728] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.610931][ T6728] CPU: 1 PID: 6728 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 53.619348][ T6728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.619363][ T6728] Call Trace: [ 53.619389][ T6728] dump_stack+0x18f/0x20d [ 53.619410][ T6728] debug_smp_processor_id.cold+0x88/0x9b [ 53.619426][ T6728] ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.619454][ T6728] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.619470][ T6728] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.619495][ T6728] ext4_ext_map_blocks+0x201b/0x33e0 [ 53.619520][ T6728] ? ext4_ext_release+0x10/0x10 [ 53.619553][ T6728] ? down_write_killable+0x170/0x170 [ 53.619565][ T6728] ? ext4_es_lookup_extent+0x41d/0xd10 [ 53.619584][ T6728] ext4_map_blocks+0x4cb/0x1640 [ 53.619606][ T6728] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.619620][ T6728] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.619634][ T6728] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.619647][ T6728] ? prandom_u32_state+0xe/0x170 [ 53.619664][ T6728] ? __brelse+0x84/0xa0 [ 53.619679][ T6728] ? __ext4_new_inode+0x144/0x55e0 [ 53.619696][ T6728] ext4_getblk+0xad/0x520 [ 53.619713][ T6728] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.619736][ T6728] ? ext4_free_inode+0x1700/0x1700 [ 53.619753][ T6728] ext4_bread+0x7c/0x380 [ 53.619768][ T6728] ? ext4_getblk+0x520/0x520 [ 53.619785][ T6728] ? dquot_get_next_dqblk+0x180/0x180 [ 53.619808][ T6728] ext4_append+0x153/0x360 [ 53.619831][ T6728] ext4_mkdir+0x5e0/0xdf0 [ 53.619855][ T6728] ? ext4_rmdir+0xde0/0xde0 [ 53.619872][ T6728] ? security_inode_permission+0xc4/0xf0 [ 53.619897][ T6728] vfs_mkdir+0x419/0x690 [ 53.619914][ T6728] do_mkdirat+0x21e/0x280 [ 53.619930][ T6728] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.619946][ T6728] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.619964][ T6728] ? do_syscall_64+0x21/0x7d0 [ 53.619980][ T6728] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.619998][ T6728] do_syscall_64+0xf6/0x7d0 [ 53.620015][ T6728] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.620028][ T6728] RIP: 0033:0x7f15686c9687 [ 53.620037][ T6728] Code: Bad RIP value. [ 53.620053][ T6728] RSP: 002b:00007fffd5ec6128 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.620074][ T6728] RAX: ffffffffffffffda RBX: 000055aa98144985 RCX: 00007f15686c9687 [ 53.620086][ T6728] RDX: 00007fffd5ec5ff0 RSI: 00000000000001ed RDI: 000055aa98144985 [ 53.620097][ T6728] RBP: 00007f15686c9680 R08: 0000000000000100 R09: 0000000000000000 [ 53.620108][ T6728] R10: 000055aa98144980 R11: 0000000000000246 R12: 00000000000001ed [ 53.620119][ T6728] R13: 00007fffd5ec62b0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.074528][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 57.083571][ T7] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.089960][ T7] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 57.097979][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.108117][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 57.114173][ T7] Call Trace: [ 57.117446][ T7] dump_stack+0x18f/0x20d [ 57.121764][ T7] debug_smp_processor_id.cold+0x88/0x9b [ 57.127374][ T7] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.132482][ T7] ? ext4_find_extent+0x81a/0xad0 [ 57.138185][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.143627][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.149330][ T7] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.154597][ T7] ? ext4_ext_release+0x10/0x10 [ 57.159433][ T7] ? down_write_killable+0x170/0x170 [ 57.164714][ T7] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.170150][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.175585][ T7] ext4_map_blocks+0x4cb/0x1640 [ 57.180425][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.185622][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.191058][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.196583][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.202540][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.207987][ T7] ext4_writepages+0x1a7b/0x33c0 [ 57.212931][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.218551][ T7] ? __lock_acquire+0x2224/0x48b0 [ 57.223569][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.229540][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.235502][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.241107][ T7] ? do_writepages+0xfa/0x2a0 [ 57.245773][ T7] do_writepages+0xfa/0x2a0 [ 57.250277][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 57.255891][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.261336][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.266856][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.272811][ T7] ? lock_downgrade+0x840/0x840 [ 57.277655][ T7] __writeback_single_inode+0x12a/0x13d0 [ 57.283269][ T7] ? _raw_spin_unlock+0x24/0x40 [ 57.288145][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.294119][ T7] writeback_sb_inodes+0x515/0xdc0 [ 57.299237][ T7] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.305124][ T7] __writeback_inodes_wb+0xc3/0x250 [ 57.310309][ T7] wb_writeback+0x8db/0xd50 [ 57.314820][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.321142][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.327029][ T7] ? cpumask_next+0x3c/0x40 [ 57.331509][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.336689][ T7] wb_workfn+0xab3/0x1090 [ 57.341013][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 57.346537][ T7] ? debug_smp_processor_id+0x2f/0x185 [ 57.351994][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.357532][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.363518][ T7] process_one_work+0x965/0x1690 [ 57.368441][ T7] ? lock_release+0x800/0x800 [ 57.373095][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.378460][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 57.383403][ T7] worker_thread+0x96/0xe10 [ 57.387893][ T7] ? process_one_work+0x1690/0x1690 [ 57.393081][ T7] kthread+0x3b5/0x4a0 [ 57.397139][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.402831][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.408711][ T7] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.186' (ECDSA) to the list of known hosts. 2020/06/12 22:41:42 fuzzer started [ 58.456874][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 58.466437][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.472344][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.480235][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.490292][ T1156] Call Trace: [ 58.493788][ T1156] dump_stack+0x18f/0x20d [ 58.498190][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 58.503825][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.508943][ T1156] ? ext4_find_extent+0x81a/0xad0 [ 58.513975][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.519440][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.525268][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.530865][ T1156] ? ext4_ext_release+0x10/0x10 [ 58.535723][ T1156] ? down_write_killable+0x170/0x170 [ 58.541013][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.546492][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 58.551373][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.556566][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 58.562107][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.567775][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.574007][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.579459][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 58.584411][ T1156] ? mark_lock+0x70/0xdd0 [ 58.588774][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 58.594429][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 58.600063][ T1156] ? do_writepages+0xfa/0x2a0 [ 58.604740][ T1156] do_writepages+0xfa/0x2a0 [ 58.609239][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 58.614876][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 58.619917][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 58.625113][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 58.629968][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 58.635707][ T1156] ? collapse_file+0x35a2/0x4330 [ 58.640634][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 58.646704][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 58.651888][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.657863][ T1156] collapse_file+0x35ac/0x4330 [ 58.662633][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 58.668001][ T1156] ? khugepaged+0x2506/0x3fc0 [ 58.672838][ T1156] ? xas_find+0x31a/0x880 [ 58.677170][ T1156] khugepaged+0x3041/0x3fc0 [ 58.681720][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.687360][ T1156] ? lock_downgrade+0x840/0x840 [ 58.692235][ T1156] ? finish_wait+0x260/0x260 [ 58.696825][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 58.702636][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.708610][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 58.713622][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.719253][ T1156] kthread+0x3b5/0x4a0 [ 58.723373][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.729207][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.735040][ T1156] ret_from_fork+0x24/0x30 [ 58.861405][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 58.870567][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.878130][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.886020][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.896161][ T1156] Call Trace: [ 58.899451][ T1156] dump_stack+0x18f/0x20d [ 58.903956][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 58.909568][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.914667][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.920124][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 58.926262][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.931586][ T1156] ? ext4_ext_release+0x10/0x10 [ 58.936441][ T1156] ? down_write_killable+0x170/0x170 [ 58.941705][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.947145][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 58.951996][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.957175][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 58.962709][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.968241][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.974344][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.979963][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 58.984952][ T1156] ? mark_lock+0x70/0xdd0 [ 58.989278][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 58.994908][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.000534][ T1156] ? do_writepages+0xfa/0x2a0 [ 59.005190][ T1156] do_writepages+0xfa/0x2a0 [ 59.009691][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 59.015318][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 59.020318][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 59.025511][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 59.030359][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.036368][ T1156] ? collapse_file+0x35a2/0x4330 [ 59.041296][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.047357][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.052972][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.058959][ T1156] collapse_file+0x35ac/0x4330 [ 59.063719][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 59.069098][ T1156] ? khugepaged+0x2506/0x3fc0 [ 59.073762][ T1156] ? xas_find+0x31a/0x880 [ 59.078086][ T1156] khugepaged+0x3041/0x3fc0 [ 59.082613][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.088235][ T1156] ? lock_downgrade+0x840/0x840 [ 59.093074][ T1156] ? finish_wait+0x260/0x260 [ 59.097734][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.103626][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 2020/06/12 22:41:43 connecting to host at 10.128.0.26:40999 2020/06/12 22:41:43 checking machine... 2020/06/12 22:41:43 checking revisions... [ 59.109600][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 59.114609][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.120219][ T1156] kthread+0x3b5/0x4a0 [ 59.124287][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.130094][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.135824][ T1156] ret_from_fork+0x24/0x30 [ 59.192407][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 59.201680][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.207704][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.215600][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.225656][ T1156] Call Trace: [ 59.228957][ T1156] dump_stack+0x18f/0x20d [ 59.233305][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 59.238947][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.244081][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.249556][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.255730][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.261037][ T1156] ? ext4_ext_release+0x10/0x10 [ 59.266135][ T1156] ? down_write_killable+0x170/0x170 [ 59.271461][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.276938][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 59.281937][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.287170][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 59.292687][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.298247][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.304280][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.309758][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 59.314827][ T1156] ? mark_lock+0x70/0xdd0 [ 59.319184][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.324851][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.330497][ T1156] ? do_writepages+0xfa/0x2a0 [ 59.335172][ T1156] do_writepages+0xfa/0x2a0 [ 59.339816][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 59.345452][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 59.350479][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 59.355690][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 59.360623][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.366339][ T1156] ? collapse_file+0x35a2/0x4330 [ 59.371272][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.377349][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.382562][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.388911][ T1156] collapse_file+0x35ac/0x4330 [ 59.393689][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 59.399059][ T1156] ? khugepaged+0x2506/0x3fc0 [ 59.403746][ T1156] ? xas_find+0x31a/0x880 [ 59.408090][ T1156] khugepaged+0x3041/0x3fc0 [ 59.412764][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.418533][ T1156] ? lock_downgrade+0x840/0x840 [ 59.423389][ T1156] ? finish_wait+0x260/0x260 [ 59.428002][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.433824][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 2020/06/12 22:41:43 testing simple program... [ 59.439810][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 59.444844][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.450668][ T1156] kthread+0x3b5/0x4a0 [ 59.454757][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.460571][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.467691][ T1156] ret_from_fork+0x24/0x30 [ 59.705275][ T6783] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6783 [ 59.714438][ T6783] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.720404][ T6783] CPU: 1 PID: 6783 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.728280][ T6783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.738339][ T6783] Call Trace: [ 59.741617][ T6783] dump_stack+0x18f/0x20d [ 59.745933][ T6783] debug_smp_processor_id.cold+0x88/0x9b [ 59.751559][ T6783] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.756679][ T6783] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.762117][ T6783] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.767835][ T6783] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.773113][ T6783] ? ext4_ext_release+0x10/0x10 [ 59.777957][ T6783] ? down_write_killable+0x170/0x170 [ 59.783393][ T6783] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.788849][ T6783] ext4_map_blocks+0x4cb/0x1640 [ 59.793695][ T6783] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.798872][ T6783] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.804483][ T6783] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.810540][ T6783] ? prandom_u32_state+0xe/0x170 [ 59.815468][ T6783] ? __brelse+0x84/0xa0 [ 59.819700][ T6783] ? __ext4_new_inode+0x144/0x55e0 [ 59.824809][ T6783] ext4_getblk+0xad/0x520 [ 59.829206][ T6783] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.834917][ T6783] ? ext4_free_inode+0x1700/0x1700 [ 59.840010][ T6783] ext4_bread+0x7c/0x380 [ 59.844331][ T6783] ? ext4_getblk+0x520/0x520 [ 59.848909][ T6783] ? dquot_get_next_dqblk+0x180/0x180 [ 59.854299][ T6783] ext4_append+0x153/0x360 [ 59.858727][ T6783] ext4_mkdir+0x5e0/0xdf0 [ 59.863055][ T6783] ? ext4_rmdir+0xde0/0xde0 [ 59.867563][ T6783] ? security_inode_permission+0xc4/0xf0 [ 59.873260][ T6783] vfs_mkdir+0x419/0x690 [ 59.877766][ T6783] do_mkdirat+0x21e/0x280 [ 59.882088][ T6783] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.886924][ T6783] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.892905][ T6783] ? do_syscall_64+0x21/0x7d0 [ 59.897718][ T6783] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.903693][ T6783] do_syscall_64+0xf6/0x7d0 [ 59.908188][ T6783] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.914081][ T6783] RIP: 0033:0x4b02a0 [ 59.917948][ T6783] Code: Bad RIP value. [ 59.922021][ T6783] RSP: 002b:000000c00028b4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.930670][ T6783] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.938619][ T6783] RDX: 00000000000001c0 RSI: 000000c000266220 RDI: ffffffffffffff9c [ 59.946591][ T6783] RBP: 000000c00028b510 R08: 0000000000000000 R09: 0000000000000000 [ 59.955942][ T6783] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.963893][ T6783] R13: 0000000000000012 R14: 0000000000000011 R15: 0000000000000100 [ 59.989986][ T6802] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6802 [ 59.999620][ T6802] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.005602][ T6802] CPU: 0 PID: 6802 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.013849][ T6802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.023995][ T6802] Call Trace: [ 60.027356][ T6802] dump_stack+0x18f/0x20d [ 60.031672][ T6802] debug_smp_processor_id.cold+0x88/0x9b [ 60.037462][ T6802] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.042578][ T6802] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.048018][ T6802] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.053737][ T6802] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.059051][ T6802] ? ext4_ext_release+0x10/0x10 [ 60.063927][ T6802] ? down_write_killable+0x170/0x170 [ 60.069195][ T6802] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.074658][ T6802] ext4_map_blocks+0x4cb/0x1640 [ 60.079501][ T6802] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.084682][ T6802] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.090209][ T6802] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.096190][ T6802] ? prandom_u32_state+0xe/0x170 [ 60.101113][ T6802] ? __brelse+0x84/0xa0 [ 60.105264][ T6802] ? __ext4_new_inode+0x144/0x55e0 [ 60.110379][ T6802] ext4_getblk+0xad/0x520 [ 60.114735][ T6802] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.120496][ T6802] ? ext4_free_inode+0x1700/0x1700 [ 60.125612][ T6802] ext4_bread+0x7c/0x380 [ 60.130097][ T6802] ? ext4_getblk+0x520/0x520 [ 60.134685][ T6802] ? dquot_get_next_dqblk+0x180/0x180 [ 60.140039][ T6802] ext4_append+0x153/0x360 [ 60.144452][ T6802] ext4_mkdir+0x5e0/0xdf0 [ 60.148770][ T6802] ? ext4_rmdir+0xde0/0xde0 [ 60.153272][ T6802] ? security_inode_permission+0xc4/0xf0 [ 60.158902][ T6802] vfs_mkdir+0x419/0x690 [ 60.163133][ T6802] do_mkdirat+0x21e/0x280 [ 60.167470][ T6802] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.172305][ T6802] ? do_fast_syscall_32+0xcc/0xe90 [ 60.177411][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.183487][ T6802] do_fast_syscall_32+0x270/0xe90 [ 60.188501][ T6802] entry_SYSENTER_compat+0x70/0x7f [ 60.266243][ T6803] IPVS: ftp: loaded support on port[0] = 21 [ 60.300115][ T6803] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6803 [ 60.309880][ T6803] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.316026][ T6803] CPU: 1 PID: 6803 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.324376][ T6803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.334428][ T6803] Call Trace: [ 60.337713][ T6803] dump_stack+0x18f/0x20d [ 60.342072][ T6803] debug_smp_processor_id.cold+0x88/0x9b [ 60.350989][ T6803] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.356103][ T6803] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.361645][ T6803] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.367356][ T6803] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.372631][ T6803] ? ext4_ext_release+0x10/0x10 [ 60.377471][ T6803] ? down_write_killable+0x170/0x170 [ 60.382750][ T6803] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.388328][ T6803] ext4_map_blocks+0x4cb/0x1640 [ 60.393204][ T6803] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.398534][ T6803] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.404107][ T6803] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.410249][ T6803] ? prandom_u32_state+0xe/0x170 [ 60.415176][ T6803] ? __brelse+0x84/0xa0 [ 60.419398][ T6803] ? __ext4_new_inode+0x144/0x55e0 [ 60.424506][ T6803] ext4_getblk+0xad/0x520 [ 60.428816][ T6803] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.434528][ T6803] ? ext4_free_inode+0x1700/0x1700 [ 60.439630][ T6803] ext4_bread+0x7c/0x380 [ 60.443865][ T6803] ? ext4_getblk+0x520/0x520 [ 60.448568][ T6803] ? dquot_get_next_dqblk+0x180/0x180 [ 60.453923][ T6803] ext4_append+0x153/0x360 [ 60.458336][ T6803] ext4_mkdir+0x5e0/0xdf0 [ 60.462852][ T6803] ? ext4_rmdir+0xde0/0xde0 [ 60.467348][ T6803] ? security_inode_permission+0xc4/0xf0 [ 60.472988][ T6803] vfs_mkdir+0x419/0x690 [ 60.477248][ T6803] do_mkdirat+0x21e/0x280 [ 60.481573][ T6803] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.486469][ T6803] ? do_fast_syscall_32+0xcc/0xe90 [ 60.491666][ T6803] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.497742][ T6803] do_fast_syscall_32+0x270/0xe90 [ 60.502771][ T6803] entry_SYSENTER_compat+0x70/0x7f 2020/06/12 22:41:44 building call list... [ 60.833432][ T77] tipc: TX() has been purged, node left! executing program [ 62.295519][ T6787] can: request_module (can-proto-0) failed. [ 62.861199][ T6787] can: request_module (can-proto-0) failed. [ 62.872856][ T6787] can: request_module (can-proto-0) failed.