[ 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... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ 52.493325][ T6733] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6733 [ 52.502887][ T6733] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 52.509220][ T6733] CPU: 0 PID: 6733 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 52.517470][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.527522][ T6733] Call Trace: [ 52.530812][ T6733] dump_stack+0x188/0x20d [ 52.535138][ T6733] debug_smp_processor_id.cold+0x88/0x9b [ 52.540775][ T6733] ext4_mb_new_blocks+0xa77/0x3b30 [ 52.545893][ T6733] ? ext4_ext_search_right+0x2ca/0xb20 [ 52.551343][ T6733] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 52.557043][ T6733] ext4_ext_map_blocks+0x2044/0x3410 [ 52.562322][ T6733] ? ext4_ext_release+0x10/0x10 [ 52.567163][ T6733] ? __down_timeout+0x2d0/0x2d0 [ 52.572012][ T6733] ? ext4_es_lookup_extent+0x41d/0xd30 [ 52.577487][ T6733] ext4_map_blocks+0x4cb/0x1640 [ 52.582329][ T6733] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 52.587542][ T6733] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 52.593112][ T6733] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 52.599205][ T6733] ? prandom_u32_state+0xe/0x170 [ 52.604132][ T6733] ? __brelse+0x84/0xa0 [ 52.608281][ T6733] ? __ext4_new_inode+0x144/0x57c0 [ 52.613375][ T6733] ext4_getblk+0xad/0x520 [ 52.617700][ T6733] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 52.623400][ T6733] ? ext4_free_inode+0x17e0/0x17e0 [ 52.628505][ T6733] ext4_bread+0x7c/0x380 [ 52.632724][ T6733] ? ext4_getblk+0x520/0x520 [ 52.637290][ T6733] ? dqget+0xff0/0xff0 [ 52.641340][ T6733] ext4_append+0x153/0x360 [ 52.645736][ T6733] ext4_mkdir+0x5e0/0xdf0 [ 52.650045][ T6733] ? ext4_rmdir+0xde0/0xde0 [ 52.654544][ T6733] ? security_inode_permission+0xc4/0xf0 [ 52.660263][ T6733] vfs_mkdir+0x419/0x690 [ 52.664492][ T6733] do_mkdirat+0x21e/0x280 [ 52.668810][ T6733] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.673643][ T6733] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.679621][ T6733] ? do_syscall_64+0x21/0x7d0 [ 52.684295][ T6733] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.690440][ T6733] do_syscall_64+0xf6/0x7d0 [ 52.695025][ T6733] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.701011][ T6733] RIP: 0033:0x7fee1af9e687 [ 52.705452][ T6733] 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 [ 52.725370][ T6733] RSP: 002b:00007ffefe020fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.735624][ T6733] RAX: ffffffffffffffda RBX: 0000562445b0a985 RCX: 00007fee1af9e687 [ 52.743574][ T6733] RDX: 00007ffefe020e80 RSI: 00000000000001ed RDI: 0000562445b0a985 [ 52.751539][ T6733] RBP: 00007fee1af9e680 R08: 0000000000000100 R09: 0000000000000000 [ 52.759492][ T6733] R10: 0000562445b0a980 R11: 0000000000000246 R12: 00000000000001ed [ 52.767458][ T6733] R13: 00007ffefe021140 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.063743][ T2514] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/2514 [ 57.072978][ T2514] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.079183][ T2514] CPU: 1 PID: 2514 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 57.087433][ T2514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.097538][ T2514] Workqueue: writeback wb_workfn (flush-8:0) [ 57.103508][ T2514] Call Trace: [ 57.106788][ T2514] dump_stack+0x188/0x20d [ 57.111107][ T2514] debug_smp_processor_id.cold+0x88/0x9b [ 57.116749][ T2514] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.121923][ T2514] ? __kmalloc+0x62f/0x7a0 [ 57.126327][ T2514] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.131772][ T2514] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.137475][ T2514] ext4_ext_map_blocks+0x2044/0x3410 [ 57.142742][ T2514] ? ext4_ext_release+0x10/0x10 [ 57.147581][ T2514] ? __down_timeout+0x2d0/0x2d0 [ 57.152409][ T2514] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.157847][ T2514] ? debug_smp_processor_id+0x2f/0x185 [ 57.163302][ T2514] ext4_map_blocks+0x4cb/0x1640 [ 57.168140][ T2514] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.173332][ T2514] ? debug_smp_processor_id+0x2f/0x185 [ 57.178777][ T2514] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.184414][ T2514] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.190388][ T2514] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.195850][ T2514] ext4_writepages+0x1ab7/0x3400 [ 57.200793][ T2514] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.206408][ T2514] ? __lock_acquire+0x2224/0x48a0 [ 57.211418][ T2514] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.217389][ T2514] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.223350][ T2514] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.228972][ T2514] ? do_writepages+0xfa/0x2a0 [ 57.233636][ T2514] do_writepages+0xfa/0x2a0 [ 57.238578][ T2514] ? page_writeback_cpu_online+0x10/0x10 [ 57.244266][ T2514] ? debug_smp_processor_id+0x2f/0x185 [ 57.249826][ T2514] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.255425][ T2514] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.261413][ T2514] ? lock_downgrade+0x840/0x840 [ 57.266372][ T2514] __writeback_single_inode+0x12a/0x1410 [ 57.272000][ T2514] ? _raw_spin_unlock+0x24/0x40 [ 57.276948][ T2514] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.282912][ T2514] writeback_sb_inodes+0x515/0xdd0 [ 57.288017][ T2514] ? __writeback_single_inode+0x1410/0x1410 [ 57.293903][ T2514] __writeback_inodes_wb+0xc3/0x250 [ 57.299100][ T2514] wb_writeback+0x910/0xd90 [ 57.303683][ T2514] ? print_usage_bug+0x240/0x240 [ 57.308602][ T2514] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.315170][ T2514] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.321873][ T2514] ? cpumask_next+0x3c/0x40 [ 57.326397][ T2514] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.331689][ T2514] wb_workfn+0xadf/0x10d0 [ 57.336013][ T2514] ? inode_wait_for_writeback+0x30/0x30 [ 57.341606][ T2514] ? debug_smp_processor_id+0x2f/0x185 [ 57.347185][ T2514] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.352716][ T2514] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.358696][ T2514] process_one_work+0x965/0x16a0 [ 57.363633][ T2514] ? lock_release+0x800/0x800 [ 57.368565][ T2514] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.373916][ T2514] ? rwlock_bug.part.0+0x90/0x90 [ 57.378854][ T2514] worker_thread+0x96/0xe10 [ 57.383355][ T2514] ? process_one_work+0x16a0/0x16a0 [ 57.388531][ T2514] kthread+0x388/0x470 [ 57.392578][ T2514] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.398272][ T2514] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.403983][ T2514] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.1.50' (ECDSA) to the list of known hosts. 2020/06/14 19:49:31 fuzzer started 2020/06/14 19:49:31 connecting to host at 10.128.0.26:41143 2020/06/14 19:49:31 checking machine... 2020/06/14 19:49:31 checking revisions... 2020/06/14 19:49:31 testing simple program... [ 58.198038][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6805 [ 58.207148][ T6805] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.213135][ T6805] CPU: 1 PID: 6805 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.221018][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.231153][ T6805] Call Trace: [ 58.234725][ T6805] dump_stack+0x188/0x20d [ 58.239043][ T6805] debug_smp_processor_id.cold+0x88/0x9b [ 58.244662][ T6805] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.250018][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.255455][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.261163][ T6805] ext4_ext_map_blocks+0x2044/0x3410 [ 58.266436][ T6805] ? ext4_ext_release+0x10/0x10 [ 58.271289][ T6805] ? __down_timeout+0x2d0/0x2d0 [ 58.276117][ T6805] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.281594][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 58.286797][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.292659][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.298216][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.304181][ T6805] ? prandom_u32_state+0xe/0x170 [ 58.309111][ T6805] ? __brelse+0x84/0xa0 [ 58.313434][ T6805] ? __ext4_new_inode+0x144/0x57c0 [ 58.318536][ T6805] ext4_getblk+0xad/0x520 [ 58.322847][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.328551][ T6805] ? ext4_free_inode+0x17e0/0x17e0 [ 58.333661][ T6805] ext4_bread+0x7c/0x380 [ 58.338143][ T6805] ? ext4_getblk+0x520/0x520 [ 58.342731][ T6805] ? dqget+0xff0/0xff0 [ 58.346787][ T6805] ext4_append+0x153/0x360 [ 58.351213][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 58.355530][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 58.360026][ T6805] ? security_inode_permission+0xc4/0xf0 [ 58.365645][ T6805] vfs_mkdir+0x419/0x690 [ 58.369887][ T6805] do_mkdirat+0x21e/0x280 [ 58.374301][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.379316][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.385358][ T6805] ? do_syscall_64+0x21/0x7d0 [ 58.390023][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.395986][ T6805] do_syscall_64+0xf6/0x7d0 [ 58.400477][ T6805] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.406362][ T6805] RIP: 0033:0x4b02a0 [ 58.410243][ T6805] 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 [ 58.429997][ T6805] RSP: 002b:000000c0000e34b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.438389][ T6805] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 58.446337][ T6805] RDX: 00000000000001c0 RSI: 000000c0000e8ec0 RDI: ffffffffffffff9c [ 58.454289][ T6805] RBP: 000000c0000e3510 R08: 0000000000000000 R09: 0000000000000000 [ 58.462236][ T6805] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.470196][ T6805] R13: 0000000000000077 R14: 0000000000000076 R15: 0000000000000100 [ 58.495907][ T6824] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6824 [ 58.505357][ T6824] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.511320][ T6824] CPU: 1 PID: 6824 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.520230][ T6824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.530267][ T6824] Call Trace: [ 58.533557][ T6824] dump_stack+0x188/0x20d [ 58.537881][ T6824] debug_smp_processor_id.cold+0x88/0x9b [ 58.543592][ T6824] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.548694][ T6824] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.554147][ T6824] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.559846][ T6824] ext4_ext_map_blocks+0x2044/0x3410 [ 58.565113][ T6824] ? ext4_ext_release+0x10/0x10 [ 58.569958][ T6824] ? __down_timeout+0x2d0/0x2d0 [ 58.574786][ T6824] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.580246][ T6824] ext4_map_blocks+0x4cb/0x1640 [ 58.585277][ T6824] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.590463][ T6824] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.595995][ T6824] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.601969][ T6824] ? prandom_u32_state+0xe/0x170 [ 58.606888][ T6824] ? __brelse+0x84/0xa0 [ 58.611036][ T6824] ? __ext4_new_inode+0x144/0x57c0 [ 58.616129][ T6824] ext4_getblk+0xad/0x520 [ 58.620449][ T6824] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.626151][ T6824] ? ext4_free_inode+0x17e0/0x17e0 [ 58.631254][ T6824] ext4_bread+0x7c/0x380 [ 58.635501][ T6824] ? ext4_getblk+0x520/0x520 [ 58.640094][ T6824] ? dqget+0xff0/0xff0 [ 58.644409][ T6824] ext4_append+0x153/0x360 [ 58.648815][ T6824] ext4_mkdir+0x5e0/0xdf0 [ 58.653260][ T6824] ? ext4_rmdir+0xde0/0xde0 [ 58.658406][ T6824] ? security_inode_permission+0xc4/0xf0 [ 58.664038][ T6824] vfs_mkdir+0x419/0x690 [ 58.668279][ T6824] do_mkdirat+0x21e/0x280 [ 58.672870][ T6824] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.677729][ T6824] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.683713][ T6824] ? do_syscall_64+0x21/0x7d0 [ 58.688371][ T6824] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.694440][ T6824] do_syscall_64+0xf6/0x7d0 [ 58.699331][ T6824] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.706245][ T6824] RIP: 0033:0x45bee7 [ 58.710145][ T6824] 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 [ 58.732510][ T6824] RSP: 002b:00007fff8f74c2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.741323][ T6824] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.751195][ T6824] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007fff8f74c480 [ 58.759910][ T6824] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000034c0 [ 58.768236][ T6824] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.776471][ T6824] R13: 00007fff8f74c480 R14: 8421084210842109 R15: 00007fff8f74c48c [ 58.862803][ T6825] IPVS: ftp: loaded support on port[0] = 21 [ 58.900324][ T6825] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6825 [ 58.910396][ T6825] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.916520][ T6825] CPU: 0 PID: 6825 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.924753][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.934800][ T6825] Call Trace: [ 58.938078][ T6825] dump_stack+0x188/0x20d [ 58.942386][ T6825] debug_smp_processor_id.cold+0x88/0x9b [ 58.947996][ T6825] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.953091][ T6825] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.958524][ T6825] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.964221][ T6825] ext4_ext_map_blocks+0x2044/0x3410 [ 58.969510][ T6825] ? ext4_ext_release+0x10/0x10 [ 58.974363][ T6825] ? __down_timeout+0x2d0/0x2d0 [ 58.979260][ T6825] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.984827][ T6825] ext4_map_blocks+0x4cb/0x1640 [ 58.989671][ T6825] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.994864][ T6825] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.000401][ T6825] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.006374][ T6825] ? prandom_u32_state+0xe/0x170 [ 59.011303][ T6825] ? __brelse+0x84/0xa0 [ 59.015437][ T6825] ? __ext4_new_inode+0x144/0x57c0 [ 59.020541][ T6825] ext4_getblk+0xad/0x520 [ 59.025545][ T6825] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.031241][ T6825] ? ext4_free_inode+0x17e0/0x17e0 [ 59.036613][ T6825] ext4_bread+0x7c/0x380 [ 59.040833][ T6825] ? ext4_getblk+0x520/0x520 [ 59.045419][ T6825] ? dqget+0xff0/0xff0 [ 59.049468][ T6825] ext4_append+0x153/0x360 [ 59.053866][ T6825] ext4_mkdir+0x5e0/0xdf0 [ 59.058194][ T6825] ? ext4_rmdir+0xde0/0xde0 [ 59.062694][ T6825] ? security_inode_permission+0xc4/0xf0 [ 59.068319][ T6825] vfs_mkdir+0x419/0x690 [ 59.072556][ T6825] do_mkdirat+0x21e/0x280 [ 59.077125][ T6825] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.081953][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.087924][ T6825] ? do_syscall_64+0x21/0x7d0 [ 59.092616][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.098594][ T6825] do_syscall_64+0xf6/0x7d0 [ 59.103096][ T6825] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.109242][ T6825] RIP: 0033:0x45bee7 [ 59.113118][ T6825] 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 [ 59.133222][ T6825] RSP: 002b:00007fff8f74c198 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.141698][ T6825] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.149746][ T6825] RDX: 00007fff8f74c1e3 RSI: 00000000000001ff RDI: 00007fff8f74c1e0 [ 59.157717][ T6825] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.165692][ T6825] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.173646][ T6825] R13: 00007fff8f74c1d0 R14: 0000000000000000 R15: 00007fff8f74c1e0 [ 59.227045][ T6825] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6825 [ 59.236678][ T6825] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.242588][ T6825] CPU: 0 PID: 6825 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.250824][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.260872][ T6825] Call Trace: [ 59.264164][ T6825] dump_stack+0x188/0x20d [ 59.268501][ T6825] debug_smp_processor_id.cold+0x88/0x9b [ 59.274137][ T6825] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.279271][ T6825] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.284730][ T6825] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.290457][ T6825] ext4_ext_map_blocks+0x2044/0x3410 [ 59.295749][ T6825] ? ext4_ext_release+0x10/0x10 [ 59.300677][ T6825] ? __down_timeout+0x2d0/0x2d0 [ 59.305517][ T6825] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.311134][ T6825] ext4_map_blocks+0x4cb/0x1640 [ 59.315972][ T6825] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.321156][ T6825] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.326688][ T6825] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.332739][ T6825] ? prandom_u32_state+0xe/0x170 [ 59.338021][ T6825] ? __brelse+0x84/0xa0 [ 59.342170][ T6825] ? __ext4_new_inode+0x144/0x57c0 [ 59.347264][ T6825] ext4_getblk+0xad/0x520 [ 59.351615][ T6825] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.357314][ T6825] ? ext4_free_inode+0x17e0/0x17e0 [ 59.362403][ T6825] ext4_bread+0x7c/0x380 [ 59.366626][ T6825] ? ext4_getblk+0x520/0x520 [ 59.371285][ T6825] ? dqget+0xff0/0xff0 [ 59.375333][ T6825] ext4_append+0x153/0x360 [ 59.379735][ T6825] ext4_mkdir+0x5e0/0xdf0 [ 59.384059][ T6825] ? ext4_rmdir+0xde0/0xde0 [ 59.388550][ T6825] ? security_inode_permission+0xc4/0xf0 [ 59.394182][ T6825] vfs_mkdir+0x419/0x690 [ 59.398491][ T6825] do_mkdirat+0x21e/0x280 [ 59.402809][ T6825] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.407670][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.413637][ T6825] ? do_syscall_64+0x21/0x7d0 [ 59.418305][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.424268][ T6825] do_syscall_64+0xf6/0x7d0 [ 59.428755][ T6825] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.435344][ T6825] RIP: 0033:0x45bee7 [ 59.439246][ T6825] 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 [ 59.459648][ T6825] RSP: 002b:00007fff8f74c198 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.468058][ T6825] RAX: ffffffffffffffda RBX: 000000000000e74d RCX: 000000000045bee7 2020/06/14 19:49:32 building call list... [ 59.476084][ T6825] RDX: 00007fff8f74c1e3 RSI: 00000000000001ff RDI: 00007fff8f74c1e0 [ 59.484053][ T6825] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.491999][ T6825] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.499958][ T6825] R13: 00007fff8f74c1d0 R14: 000000000000e73b R15: 00007fff8f74c1e0 [ 59.782621][ T2514] tipc: TX() has been purged, node left! [ 60.908174][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 60.917450][ T1153] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.923433][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.931349][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.941403][ T1153] Call Trace: [ 60.944696][ T1153] dump_stack+0x188/0x20d [ 60.949035][ T1153] debug_smp_processor_id.cold+0x88/0x9b [ 60.954664][ T1153] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.959763][ T1153] ? __kmalloc+0x62f/0x7a0 [ 60.964269][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.969722][ T1153] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.975443][ T1153] ext4_ext_map_blocks+0x2044/0x3410 [ 60.980728][ T1153] ? ext4_ext_release+0x10/0x10 [ 60.985591][ T1153] ? __down_timeout+0x2d0/0x2d0 [ 60.990431][ T1153] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.995893][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 61.000744][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.005932][ T1153] ? debug_smp_processor_id+0x2f/0x185 [ 61.011409][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.016958][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.022940][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.028424][ T1153] ext4_writepages+0x1ab7/0x3400 [ 61.033361][ T1153] ? mark_lock+0x30/0xdd0 [ 61.037709][ T1153] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.043364][ T1153] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.049002][ T1153] ? do_writepages+0xfa/0x2a0 [ 61.053688][ T1153] do_writepages+0xfa/0x2a0 [ 61.058191][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 61.063838][ T1153] ? do_raw_spin_lock+0x129/0x2e0 [ 61.068856][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 61.074050][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 61.079690][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.085415][ T1153] ? collapse_file+0x3575/0x4300 [ 61.090356][ T1153] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.096454][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.101645][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.107627][ T1153] collapse_file+0x357f/0x4300 [ 61.112476][ T1153] ? collapse_huge_page+0x4370/0x4370 [ 61.117839][ T1153] ? khugepaged+0x24fa/0x3f80 [ 61.122535][ T1153] khugepaged+0x3049/0x3f80 [ 61.127409][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.133040][ T1153] ? lock_downgrade+0x840/0x840 [ 61.137885][ T1153] ? finish_wait+0x260/0x260 [ 61.142484][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.148298][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.154278][ T1153] ? __kthread_parkme+0x13f/0x1e0 executing program [ 61.159299][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.164937][ T1153] kthread+0x388/0x470 [ 61.169015][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.174754][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.180470][ T1153] ret_from_fork+0x24/0x30 [ 61.257256][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 61.266403][ T1153] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.273008][ T1153] CPU: 0 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.281240][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.291292][ T1153] Call Trace: [ 61.294611][ T1153] dump_stack+0x188/0x20d [ 61.298947][ T1153] debug_smp_processor_id.cold+0x88/0x9b [ 61.304596][ T1153] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.309991][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.315450][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.321607][ T1153] ext4_ext_map_blocks+0x2044/0x3410 [ 61.326901][ T1153] ? ext4_ext_release+0x10/0x10 [ 61.331765][ T1153] ? __down_timeout+0x2d0/0x2d0 [ 61.336698][ T1153] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.342158][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 61.347013][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.352209][ T1153] ? debug_smp_processor_id+0x2f/0x185 [ 61.357702][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.363243][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.369221][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.374692][ T1153] ext4_writepages+0x1ab7/0x3400 [ 61.379659][ T1153] ? mark_lock+0x30/0xdd0 [ 61.384002][ T1153] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.389667][ T1153] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.395292][ T1153] ? do_writepages+0xfa/0x2a0 [ 61.400054][ T1153] do_writepages+0xfa/0x2a0 [ 61.404558][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 61.410187][ T1153] ? do_raw_spin_lock+0x129/0x2e0 [ 61.415214][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 61.420405][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 61.425431][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.431142][ T1153] ? collapse_file+0x3575/0x4300 [ 61.436076][ T1153] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.442146][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.447341][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.453319][ T1153] collapse_file+0x357f/0x4300 [ 61.458094][ T1153] ? collapse_huge_page+0x4370/0x4370 [ 61.463506][ T1153] ? khugepaged+0x24fa/0x3f80 [ 61.468198][ T1153] khugepaged+0x3049/0x3f80 [ 61.472738][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.480030][ T1153] ? lock_downgrade+0x840/0x840 [ 61.485141][ T1153] ? finish_wait+0x260/0x260 [ 61.489735][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.495535][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.501519][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 61.506540][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.512169][ T1153] kthread+0x388/0x470 [ 61.516232][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.522294][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.528009][ T1153] ret_from_fork+0x24/0x30 [ 61.656839][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 61.666318][ T1153] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.672560][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.680446][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.690492][ T1153] Call Trace: [ 61.693784][ T1153] dump_stack+0x188/0x20d [ 61.698154][ T1153] debug_smp_processor_id.cold+0x88/0x9b [ 61.703790][ T1153] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.708893][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.714368][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.720759][ T1153] ext4_ext_map_blocks+0x2044/0x3410 [ 61.726040][ T1153] ? ext4_ext_release+0x10/0x10 [ 61.731512][ T1153] ? __down_timeout+0x2d0/0x2d0 [ 61.736366][ T1153] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.741839][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 61.746687][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.751989][ T1153] ? debug_smp_processor_id+0x2f/0x185 [ 61.757452][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.762996][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.768993][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.774442][ T1153] ext4_writepages+0x1ab7/0x3400 [ 61.779380][ T1153] ? mark_lock+0x30/0xdd0 [ 61.783701][ T1153] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.789339][ T1153] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.794953][ T1153] ? do_writepages+0xfa/0x2a0 [ 61.799618][ T1153] do_writepages+0xfa/0x2a0 [ 61.804123][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 61.809738][ T1153] ? do_raw_spin_lock+0x129/0x2e0 [ 61.814743][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 61.820019][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 61.824865][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.830677][ T1153] ? collapse_file+0x3575/0x4300 [ 61.835601][ T1153] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.841792][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.847130][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.853119][ T1153] collapse_file+0x357f/0x4300 [ 61.857888][ T1153] ? collapse_huge_page+0x4370/0x4370 [ 61.863333][ T1153] ? khugepaged+0x24fa/0x3f80 [ 61.868001][ T1153] khugepaged+0x3049/0x3f80 [ 61.872511][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.878471][ T1153] ? lock_downgrade+0x840/0x840 [ 61.883315][ T1153] ? finish_wait+0x260/0x260 [ 61.887887][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.893686][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.900081][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 61.905097][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.910724][ T1153] kthread+0x388/0x470 [ 61.915215][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.920925][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.926647][ T1153] ret_from_fork+0x24/0x30 [ 62.023571][ T6808] can: request_module (can-proto-0) failed. [ 62.246643][ T6808] can: request_module (can-proto-0) failed. [ 62.258129][ T6808] can: request_module (can-proto-0) failed.