[ 53.585158][ T6770] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.591034][ T6770] RIP: 0033:0x7f207e73b687 [ 53.595425][ T6770] 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 [ 53.615008][ T6770] RSP: 002b:00007fffc9a48be8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.623397][ T6770] RAX: ffffffffffffffda RBX: 0000561a49b1b985 RCX: 00007f207e73b687 [ 53.631359][ T6770] RDX: 00007fffc9a48ab0 RSI: 00000000000001ed RDI: 0000561a49b1b985 [ 53.639318][ T6770] RBP: 00007f207e73b680 R08: 0000000000000100 R09: 0000000000000000 [ 53.647276][ T6770] R10: 0000561a49b1b980 R11: 0000000000000246 R12: 00000000000001ed [ 53.655221][ T6770] R13: 00007fffc9a48d70 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.057559][ T277] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/277 [ 57.066723][ T277] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.072715][ T277] CPU: 1 PID: 277 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 57.080692][ T277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.090739][ T277] Workqueue: writeback wb_workfn (flush-8:0) [ 57.096693][ T277] Call Trace: [ 57.099966][ T277] dump_stack+0x188/0x20d [ 57.104286][ T277] debug_smp_processor_id.cold+0x88/0x9b [ 57.109895][ T277] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.114979][ T277] ? __kmalloc+0x62f/0x7a0 [ 57.119380][ T277] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.124813][ T277] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.130522][ T277] ext4_ext_map_blocks+0x2044/0x3410 [ 57.135788][ T277] ? ext4_ext_release+0x10/0x10 [ 57.140638][ T277] ? __down_timeout+0x2d0/0x2d0 [ 57.145482][ T277] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.151290][ T277] ? debug_smp_processor_id+0x2f/0x185 [ 57.156747][ T277] ext4_map_blocks+0x4cb/0x1640 [ 57.161589][ T277] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.166776][ T277] ? debug_smp_processor_id+0x2f/0x185 [ 57.172239][ T277] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.177778][ T277] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.183745][ T277] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.189183][ T277] ext4_writepages+0x1ab7/0x3400 [ 57.194114][ T277] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.199721][ T277] ? __lock_acquire+0x2224/0x48a0 [ 57.204741][ T277] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.210708][ T277] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.216849][ T277] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.222456][ T277] ? do_writepages+0xfa/0x2a0 [ 57.227116][ T277] do_writepages+0xfa/0x2a0 [ 57.231607][ T277] ? page_writeback_cpu_online+0x10/0x10 [ 57.237929][ T277] ? debug_smp_processor_id+0x2f/0x185 [ 57.243462][ T277] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.248986][ T277] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.254941][ T277] ? lock_downgrade+0x840/0x840 [ 57.259773][ T277] __writeback_single_inode+0x12a/0x1410 [ 57.265382][ T277] ? _raw_spin_unlock+0x24/0x40 [ 57.270211][ T277] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.276179][ T277] writeback_sb_inodes+0x515/0xdd0 [ 57.281276][ T277] ? __writeback_single_inode+0x1410/0x1410 [ 57.287157][ T277] __writeback_inodes_wb+0xc3/0x250 [ 57.292349][ T277] wb_writeback+0x910/0xd90 [ 57.296830][ T277] ? print_usage_bug+0x240/0x240 [ 57.301746][ T277] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.308069][ T277] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.313952][ T277] ? cpumask_next+0x3c/0x40 [ 57.318614][ T277] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.323799][ T277] wb_workfn+0xadf/0x10d0 [ 57.328107][ T277] ? inode_wait_for_writeback+0x30/0x30 [ 57.333626][ T277] ? debug_smp_processor_id+0x2f/0x185 [ 57.339064][ T277] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.344600][ T277] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.350648][ T277] process_one_work+0x965/0x16a0 [ 57.355566][ T277] ? lock_release+0x800/0x800 [ 57.360220][ T277] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.365569][ T277] ? rwlock_bug.part.0+0x90/0x90 [ 57.370502][ T277] worker_thread+0x96/0xe10 [ 57.374998][ T277] ? process_one_work+0x16a0/0x16a0 [ 57.380201][ T277] kthread+0x388/0x470 [ 57.384255][ T277] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.389953][ T277] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.395676][ T277] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. 2020/06/16 07:38:31 fuzzer started 2020/06/16 07:38:32 connecting to host at 10.128.0.26:46513 2020/06/16 07:38:32 checking machine... 2020/06/16 07:38:32 checking revisions... 2020/06/16 07:38:32 testing simple program... [ 59.469143][ T6825] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6825 [ 59.478394][ T6825] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.484279][ T6825] CPU: 0 PID: 6825 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.492274][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.502360][ T6825] Call Trace: [ 59.505632][ T6825] dump_stack+0x188/0x20d [ 59.509942][ T6825] debug_smp_processor_id.cold+0x88/0x9b [ 59.515593][ T6825] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.520746][ T6825] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.526191][ T6825] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.531900][ T6825] ext4_ext_map_blocks+0x2044/0x3410 [ 59.537176][ T6825] ? ext4_ext_release+0x10/0x10 [ 59.542013][ T6825] ? __down_timeout+0x2d0/0x2d0 [ 59.546843][ T6825] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.552298][ T6825] ext4_map_blocks+0x4cb/0x1640 [ 59.557128][ T6825] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.562304][ T6825] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.567843][ T6825] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.573802][ T6825] ? prandom_u32_state+0xe/0x170 [ 59.578716][ T6825] ? __brelse+0x84/0xa0 [ 59.582935][ T6825] ? __ext4_new_inode+0x144/0x57c0 [ 59.588033][ T6825] ext4_getblk+0xad/0x520 [ 59.592349][ T6825] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.598047][ T6825] ? ext4_free_inode+0x17e0/0x17e0 [ 59.603134][ T6825] ext4_bread+0x7c/0x380 [ 59.607356][ T6825] ? ext4_getblk+0x520/0x520 [ 59.611921][ T6825] ? dqget+0xff0/0xff0 [ 59.615976][ T6825] ext4_append+0x153/0x360 [ 59.620373][ T6825] ext4_mkdir+0x5e0/0xdf0 [ 59.624701][ T6825] ? ext4_rmdir+0xde0/0xde0 [ 59.629181][ T6825] ? security_inode_permission+0xc4/0xf0 [ 59.634800][ T6825] vfs_mkdir+0x419/0x690 [ 59.639020][ T6825] do_mkdirat+0x21e/0x280 [ 59.643359][ T6825] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.648200][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.654168][ T6825] ? do_syscall_64+0x21/0x7d0 [ 59.658834][ T6825] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.664789][ T6825] do_syscall_64+0xf6/0x7d0 [ 59.669282][ T6825] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.675160][ T6825] RIP: 0033:0x4b02a0 [ 59.679045][ T6825] 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 [ 59.698631][ T6825] RSP: 002b:000000c0001214b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.707029][ T6825] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.715158][ T6825] RDX: 00000000000001c0 RSI: 000000c0002b8c20 RDI: ffffffffffffff9c [ 59.723113][ T6825] RBP: 000000c000121510 R08: 0000000000000000 R09: 0000000000000000 [ 59.731068][ T6825] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.739015][ T6825] R13: 0000000000000062 R14: 0000000000000061 R15: 0000000000000100 [ 59.757061][ T6837] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6837 [ 59.762127][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 59.766458][ T6837] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.766477][ T6837] CPU: 0 PID: 6837 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.775600][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.781418][ T6837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.781423][ T6837] Call Trace: [ 59.781443][ T6837] dump_stack+0x188/0x20d [ 59.781461][ T6837] debug_smp_processor_id.cold+0x88/0x9b [ 59.781474][ T6837] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.781500][ T6837] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.829280][ T6837] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.834984][ T6837] ext4_ext_map_blocks+0x2044/0x3410 [ 59.840377][ T6837] ? ext4_ext_release+0x10/0x10 [ 59.845219][ T6837] ? __down_timeout+0x2d0/0x2d0 [ 59.850060][ T6837] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.855516][ T6837] ext4_map_blocks+0x4cb/0x1640 [ 59.860378][ T6837] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.865567][ T6837] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.871095][ T6837] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.877066][ T6837] ? prandom_u32_state+0xe/0x170 [ 59.881985][ T6837] ? __brelse+0x84/0xa0 [ 59.886119][ T6837] ? __ext4_new_inode+0x144/0x57c0 [ 59.891214][ T6837] ext4_getblk+0xad/0x520 [ 59.895525][ T6837] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.901228][ T6837] ? ext4_free_inode+0x17e0/0x17e0 [ 59.906337][ T6837] ext4_bread+0x7c/0x380 [ 59.910563][ T6837] ? ext4_getblk+0x520/0x520 [ 59.915134][ T6837] ? dqget+0xff0/0xff0 [ 59.919207][ T6837] ext4_append+0x153/0x360 [ 59.923607][ T6837] ext4_mkdir+0x5e0/0xdf0 [ 59.927924][ T6837] ? ext4_rmdir+0xde0/0xde0 [ 59.932413][ T6837] ? security_inode_permission+0xc4/0xf0 [ 59.938030][ T6837] vfs_mkdir+0x419/0x690 [ 59.942267][ T6837] do_mkdirat+0x21e/0x280 [ 59.947014][ T6837] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.951845][ T6837] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.957808][ T6837] ? do_syscall_64+0x21/0x7d0 [ 59.962466][ T6837] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.968445][ T6837] do_syscall_64+0xf6/0x7d0 [ 59.972931][ T6837] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.978809][ T6837] RIP: 0033:0x45bed7 [ 59.982695][ T6837] 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 [ 60.002277][ T6837] RSP: 002b:00007ffe5ceb6b58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.010669][ T6837] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bed7 [ 60.018619][ T6837] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe5ceb6d30 [ 60.026567][ T6837] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003380 [ 60.034518][ T6837] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.042471][ T6837] R13: 00007ffe5ceb6d30 R14: 8421084210842109 R15: 00007ffe5ceb6d3c [ 60.050441][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.058337][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.068388][ T1155] Call Trace: [ 60.071683][ T1155] dump_stack+0x188/0x20d [ 60.076024][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.081661][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.086771][ T1155] ? __kmalloc+0x62f/0x7a0 [ 60.091203][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.096660][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.102387][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.107689][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.112822][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.117679][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.123146][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.128005][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.133206][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.138672][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.144222][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.150238][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.155700][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.160639][ T1155] ? mark_lock+0x30/0xdd0 [ 60.164989][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.170654][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.174165][ T6838] IPVS: ftp: loaded support on port[0] = 21 [ 60.176323][ T1155] ? do_writepages+0xfa/0x2a0 [ 60.187655][ T1155] do_writepages+0xfa/0x2a0 [ 60.192173][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 60.197824][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 60.202952][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 60.208170][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 60.213034][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.218779][ T1155] ? collapse_file+0x3575/0x4300 [ 60.223746][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.229835][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.234359][ T6838] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6838 [ 60.235044][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.244958][ T6838] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.251606][ T1155] collapse_file+0x357f/0x4300 [ 60.251637][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 60.251651][ T1155] ? khugepaged+0x24fa/0x3f80 [ 60.251682][ T1155] khugepaged+0x3049/0x3f80 [ 60.251718][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.282970][ T1155] ? lock_downgrade+0x840/0x840 [ 60.287895][ T1155] ? finish_wait+0x260/0x260 [ 60.292470][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.298451][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.304419][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 60.309444][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.315059][ T1155] kthread+0x388/0x470 [ 60.319127][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.324862][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.331545][ T1155] ret_from_fork+0x24/0x30 [ 60.335966][ T6838] CPU: 0 PID: 6838 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.344304][ T6838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.354366][ T6838] Call Trace: [ 60.357663][ T6838] dump_stack+0x188/0x20d [ 60.362030][ T6838] debug_smp_processor_id.cold+0x88/0x9b [ 60.368651][ T6838] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.374212][ T6838] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.380021][ T6838] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.386307][ T6838] ext4_ext_map_blocks+0x2044/0x3410 [ 60.389460][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.392040][ T6838] ? ext4_ext_release+0x10/0x10 [ 60.392073][ T6838] ? __down_timeout+0x2d0/0x2d0 [ 60.392085][ T6838] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.392105][ T6838] ext4_map_blocks+0x4cb/0x1640 [ 60.401251][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.406066][ T6838] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.432507][ T6838] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.438123][ T6838] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.444100][ T6838] ? prandom_u32_state+0xe/0x170 [ 60.449049][ T6838] ? __brelse+0x84/0xa0 [ 60.453221][ T6838] ? __ext4_new_inode+0x144/0x57c0 [ 60.458317][ T6838] ext4_getblk+0xad/0x520 [ 60.462645][ T6838] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.468371][ T6838] ? ext4_free_inode+0x17e0/0x17e0 [ 60.473582][ T6838] ext4_bread+0x7c/0x380 [ 60.477807][ T6838] ? ext4_getblk+0x520/0x520 [ 60.482381][ T6838] ? dqget+0xff0/0xff0 [ 60.486454][ T6838] ext4_append+0x153/0x360 [ 60.490881][ T6838] ext4_mkdir+0x5e0/0xdf0 [ 60.495245][ T6838] ? ext4_rmdir+0xde0/0xde0 [ 60.499822][ T6838] ? security_inode_permission+0xc4/0xf0 [ 60.505442][ T6838] vfs_mkdir+0x419/0x690 [ 60.510284][ T6838] do_mkdirat+0x21e/0x280 [ 60.514688][ T6838] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.519524][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.525666][ T6838] ? do_syscall_64+0x21/0x7d0 [ 60.530523][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.536722][ T6838] do_syscall_64+0xf6/0x7d0 [ 60.541211][ T6838] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.547184][ T6838] RIP: 0033:0x45bed7 [ 60.551062][ T6838] 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 [ 60.571279][ T6838] RSP: 002b:00007ffe5ceb6a48 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.584288][ T6838] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bed7 [ 60.592262][ T6838] RDX: 00007ffe5ceb6a93 RSI: 00000000000001ff RDI: 00007ffe5ceb6a90 [ 60.600239][ T6838] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.608191][ T6838] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185c0 [ 60.616278][ T6838] R13: 00007ffe5ceb6a80 R14: 0000000000000000 R15: 00007ffe5ceb6a90 [ 60.624427][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.632321][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.642384][ T1155] Call Trace: [ 60.645685][ T1155] dump_stack+0x188/0x20d [ 60.650023][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.655663][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.660795][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.666266][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.672430][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.677732][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.682605][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.687459][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.692937][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.697805][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.703033][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.708510][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.714073][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.720154][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.725625][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.730571][ T1155] ? mark_lock+0x30/0xdd0 [ 60.734922][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.740611][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.746251][ T1155] ? do_writepages+0xfa/0x2a0 [ 60.751027][ T1155] do_writepages+0xfa/0x2a0 [ 60.755546][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 60.761192][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 60.766224][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 60.771427][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 60.773276][ T6838] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6838 [ 60.776297][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.785748][ T6838] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.791382][ T1155] ? collapse_file+0x3575/0x4300 [ 60.791396][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.791420][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.791436][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.791455][ T1155] collapse_file+0x357f/0x4300 [ 60.791485][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 60.829668][ T1155] ? khugepaged+0x24fa/0x3f80 [ 60.834346][ T1155] khugepaged+0x3049/0x3f80 [ 60.838852][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.844468][ T1155] ? lock_downgrade+0x840/0x840 [ 60.849489][ T1155] ? finish_wait+0x260/0x260 [ 60.854073][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.859862][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.865843][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 60.870852][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.876473][ T1155] kthread+0x388/0x470 [ 60.880524][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.886222][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.891924][ T1155] ret_from_fork+0x24/0x30 [ 60.896340][ T6838] CPU: 0 PID: 6838 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.904582][ T6838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.914643][ T6838] Call Trace: [ 60.917955][ T6838] dump_stack+0x188/0x20d [ 60.922377][ T6838] debug_smp_processor_id.cold+0x88/0x9b [ 60.928004][ T6838] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.933129][ T6838] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.938599][ T6838] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.944864][ T6838] ext4_ext_map_blocks+0x2044/0x3410 [ 60.950164][ T6838] ? ext4_ext_release+0x10/0x10 [ 60.955026][ T6838] ? __down_timeout+0x2d0/0x2d0 [ 60.959882][ T6838] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.965353][ T6838] ext4_map_blocks+0x4cb/0x1640 [ 60.970653][ T6838] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.971505][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.975846][ T6838] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.975864][ T6838] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.984911][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.990394][ T6838] ? prandom_u32_state+0xe/0x170 [ 60.990410][ T6838] ? __brelse+0x84/0xa0 [ 60.990424][ T6838] ? __ext4_new_inode+0x144/0x57c0 [ 60.990443][ T6838] ext4_getblk+0xad/0x520 [ 60.990459][ T6838] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.990478][ T6838] ? ext4_free_inode+0x17e0/0x17e0 [ 61.031683][ T6838] ext4_bread+0x7c/0x380 [ 61.035907][ T6838] ? ext4_getblk+0x520/0x520 [ 61.040477][ T6838] ? dqget+0xff0/0xff0 [ 61.044794][ T6838] ext4_append+0x153/0x360 [ 61.049201][ T6838] ext4_mkdir+0x5e0/0xdf0 [ 61.053533][ T6838] ? ext4_rmdir+0xde0/0xde0 [ 61.058023][ T6838] ? security_inode_permission+0xc4/0xf0 [ 61.063652][ T6838] vfs_mkdir+0x419/0x690 [ 61.067878][ T6838] do_mkdirat+0x21e/0x280 [ 61.072189][ T6838] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.077022][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.082984][ T6838] ? do_syscall_64+0x21/0x7d0 [ 61.087641][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.093622][ T6838] do_syscall_64+0xf6/0x7d0 [ 61.098109][ T6838] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.103980][ T6838] RIP: 0033:0x45bed7 [ 61.107864][ T6838] 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 [ 61.127456][ T6838] RSP: 002b:00007ffe5ceb6a48 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.135845][ T6838] RAX: ffffffffffffffda RBX: 000000000000ecf8 RCX: 000000000045bed7 [ 61.143798][ T6838] RDX: 00007ffe5ceb6a93 RSI: 00000000000001ff RDI: 00007ffe5ceb6a90 [ 61.151764][ T6838] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.159726][ T6838] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 61.167677][ T6838] R13: 00007ffe5ceb6a80 R14: 000000000000ecf4 R15: 00007ffe5ceb6a90 [ 61.175658][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.183555][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.193712][ T1155] Call Trace: [ 61.197012][ T1155] dump_stack+0x188/0x20d [ 61.203304][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.208967][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.214101][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.219570][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.225721][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.230998][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.235955][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.240803][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.246350][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.251202][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.256381][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.261843][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.267395][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.273387][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.278856][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.283792][ T1155] ? mark_lock+0x30/0xdd0 [ 61.288114][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.293766][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.299916][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.304581][ T1155] do_writepages+0xfa/0x2a0 [ 61.309078][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.314691][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.319696][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.324885][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.329718][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.335420][ T1155] ? collapse_file+0x3575/0x4300 [ 61.340350][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.346424][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.351653][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.357631][ T1155] collapse_file+0x357f/0x4300 [ 61.362392][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.367780][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.373960][ T1155] khugepaged+0x3049/0x3f80 [ 61.378470][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.384086][ T1155] ? lock_downgrade+0x840/0x840 [ 61.388919][ T1155] ? finish_wait+0x260/0x260 [ 61.393498][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.399287][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.405489][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.410505][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.416121][ T1155] kthread+0x388/0x470 [ 61.420181][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.425893][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.431593][ T1155] ret_from_fork+0x24/0x30 2020/06/16 07:38:34 building call list... [ 61.686536][ T3631] tipc: TX() has been purged, node left! executing program [ 63.186839][ T6824] can: request_module (can-proto-0) failed. [ 63.730305][ T6824] can: request_module (can-proto-0) failed. [ 63.743121][ T6824] can: request_module (can-proto-0) failed.