[ 54.057989][ T6734] ext4_append+0x153/0x360 [ 54.062413][ T6734] ext4_mkdir+0x5e0/0xdf0 [ 54.066763][ T6734] ? ext4_rmdir+0xde0/0xde0 [ 54.071274][ T6734] ? security_inode_permission+0xc4/0xf0 [ 54.076928][ T6734] vfs_mkdir+0x419/0x690 [ 54.081261][ T6734] do_mkdirat+0x21e/0x280 [ 54.085605][ T6734] ? __ia32_sys_mknod+0xb0/0xb0 [ 54.090472][ T6734] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.096605][ T6734] ? do_syscall_64+0x21/0x7d0 [ 54.096620][ T6734] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.096643][ T6734] do_syscall_64+0xf6/0x7d0 [ 54.096663][ T6734] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 54.117917][ T6734] RIP: 0033:0x7f38a462d687 [ 54.117930][ T6734] 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 [ 54.117943][ T6734] RSP: 002b:00007ffee04354d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.150363][ T6734] RAX: ffffffffffffffda RBX: 000056078b0f6985 RCX: 00007f38a462d687 [ 54.158330][ T6734] RDX: 00007ffee04353a0 RSI: 00000000000001ed RDI: 000056078b0f6985 [ 54.166317][ T6734] RBP: 00007f38a462d680 R08: 0000000000000100 R09: 0000000000000000 [[ 54.174298][ T6734] R10: 000056078b0f6980 R11: 0000000000000246 R12: 00000000000001ed [ 54.182347][ T6734] R13: 00007ffee0435660 R14: 0000000000000000 R15: 0000000000000000  OK ] Started Getty on tty1. [ 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 Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 58.686619][ T173] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/173 [ 58.696350][ T173] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.702603][ T173] CPU: 0 PID: 173 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 58.711003][ T173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.721488][ T173] Workqueue: writeback wb_workfn (flush-8:0) [ 58.727548][ T173] Call Trace: [ 58.731209][ T173] dump_stack+0x188/0x20d [ 58.736005][ T173] debug_smp_processor_id.cold+0x88/0x9b [ 58.741646][ T173] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.746753][ T173] ? __kmalloc+0x62f/0x7a0 [ 58.751294][ T173] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.756838][ T173] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.762921][ T173] ext4_ext_map_blocks+0x2044/0x3410 [ 58.768797][ T173] ? ext4_ext_release+0x10/0x10 [ 58.773778][ T173] ? __down_timeout+0x2d0/0x2d0 [ 58.778626][ T173] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.784827][ T173] ? debug_smp_processor_id+0x2f/0x185 [ 58.790415][ T173] ext4_map_blocks+0x4cb/0x1640 [ 58.795377][ T173] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.801186][ T173] ? debug_smp_processor_id+0x2f/0x185 [ 58.807002][ T173] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.812878][ T173] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.819558][ T173] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.825262][ T173] ext4_writepages+0x1ab7/0x3400 [ 58.830210][ T173] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.836094][ T173] ? __lock_acquire+0x2224/0x48a0 [ 58.841133][ T173] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.847420][ T173] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.853797][ T173] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.859749][ T173] ? do_writepages+0xfa/0x2a0 [ 58.864553][ T173] do_writepages+0xfa/0x2a0 [ 58.869563][ T173] ? page_writeback_cpu_online+0x10/0x10 [ 58.875536][ T173] ? debug_smp_processor_id+0x2f/0x185 [ 58.881522][ T173] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.887900][ T173] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.894161][ T173] ? lock_downgrade+0x840/0x840 [ 58.899018][ T173] __writeback_single_inode+0x12a/0x1410 [ 58.904654][ T173] ? _raw_spin_unlock+0x24/0x40 [ 58.909497][ T173] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 58.915920][ T173] writeback_sb_inodes+0x515/0xdd0 [ 58.921743][ T173] ? __writeback_single_inode+0x1410/0x1410 [ 58.928061][ T173] __writeback_inodes_wb+0xc3/0x250 [ 58.933460][ T173] wb_writeback+0x910/0xd90 [ 58.937973][ T173] ? print_usage_bug+0x240/0x240 [ 58.943067][ T173] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 58.949634][ T173] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 58.955797][ T173] ? cpumask_next+0x3c/0x40 [ 58.960885][ T173] ? get_nr_dirty_inodes+0xd6/0x130 [ 58.966629][ T173] wb_workfn+0xadf/0x10d0 [ 58.971289][ T173] ? inode_wait_for_writeback+0x30/0x30 [ 58.977096][ T173] ? debug_smp_processor_id+0x2f/0x185 [ 58.983371][ T173] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.989529][ T173] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.996220][ T173] process_one_work+0x965/0x16a0 [ 59.001299][ T173] ? lock_release+0x800/0x800 [ 59.006089][ T173] ? pwq_dec_nr_in_flight+0x310/0x310 [ 59.013098][ T173] ? rwlock_bug.part.0+0x90/0x90 [ 59.018375][ T173] worker_thread+0x96/0xe10 [ 59.023123][ T173] ? process_one_work+0x16a0/0x16a0 [ 59.028592][ T173] kthread+0x388/0x470 [ 59.033412][ T173] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.039853][ T173] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.045864][ T173] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.19' (ECDSA) to the list of known hosts. 2020/06/13 00:47:53 fuzzer started 2020/06/13 00:47:53 connecting to host at 10.128.0.26:33877 2020/06/13 00:47:53 checking machine... 2020/06/13 00:47:53 checking revisions... 2020/06/13 00:47:53 testing simple program... [ 60.008403][ T6798] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6798 [ 60.018312][ T6798] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.024260][ T6798] CPU: 0 PID: 6798 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 60.032255][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.043116][ T6798] Call Trace: [ 60.046646][ T6798] dump_stack+0x188/0x20d [ 60.051242][ T6798] debug_smp_processor_id.cold+0x88/0x9b [ 60.056967][ T6798] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.062430][ T6798] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.068012][ T6798] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.074422][ T6798] ext4_ext_map_blocks+0x2044/0x3410 [ 60.080279][ T6798] ? ext4_ext_release+0x10/0x10 [ 60.085271][ T6798] ? __down_timeout+0x2d0/0x2d0 [ 60.090833][ T6798] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.096620][ T6798] ext4_map_blocks+0x4cb/0x1640 [ 60.101864][ T6798] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.108101][ T6798] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.113823][ T6798] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.120638][ T6798] ? prandom_u32_state+0xe/0x170 [ 60.125669][ T6798] ? __brelse+0x84/0xa0 [ 60.130147][ T6798] ? __ext4_new_inode+0x144/0x57c0 [ 60.135444][ T6798] ext4_getblk+0xad/0x520 [ 60.140094][ T6798] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.145817][ T6798] ? ext4_free_inode+0x17e0/0x17e0 [ 60.151348][ T6798] ext4_bread+0x7c/0x380 [ 60.155588][ T6798] ? ext4_getblk+0x520/0x520 [ 60.160490][ T6798] ? dqget+0xff0/0xff0 [ 60.164990][ T6798] ext4_append+0x153/0x360 [ 60.169768][ T6798] ext4_mkdir+0x5e0/0xdf0 [ 60.174229][ T6798] ? ext4_rmdir+0xde0/0xde0 [ 60.179057][ T6798] ? security_inode_permission+0xc4/0xf0 [ 60.184827][ T6798] vfs_mkdir+0x419/0x690 [ 60.189111][ T6798] do_mkdirat+0x21e/0x280 [ 60.193712][ T6798] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.199097][ T6798] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.205718][ T6798] ? do_syscall_64+0x21/0x7d0 [ 60.211104][ T6798] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.217513][ T6798] do_syscall_64+0xf6/0x7d0 [ 60.222241][ T6798] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.228364][ T6798] RIP: 0033:0x4b02a0 [ 60.232251][ T6798] 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 [ 60.252840][ T6798] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.261859][ T6798] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 60.269918][ T6798] RDX: 00000000000001c0 RSI: 000000c000026cc0 RDI: ffffffffffffff9c [ 60.278402][ T6798] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 60.286852][ T6798] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.294822][ T6798] R13: 0000000000000067 R14: 0000000000000066 R15: 0000000000000100 [ 60.320705][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6801 [ 60.330469][ T6801] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.336886][ T6801] CPU: 0 PID: 6801 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.345708][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.356487][ T6801] Call Trace: [ 60.359789][ T6801] dump_stack+0x188/0x20d [ 60.364122][ T6801] debug_smp_processor_id.cold+0x88/0x9b [ 60.369949][ T6801] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.375286][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.380848][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.386565][ T6801] ext4_ext_map_blocks+0x2044/0x3410 [ 60.392658][ T6801] ? ext4_ext_release+0x10/0x10 [ 60.397727][ T6801] ? __down_timeout+0x2d0/0x2d0 [ 60.402697][ T6801] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.408301][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 60.413677][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.418996][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.425076][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.431400][ T6801] ? prandom_u32_state+0xe/0x170 [ 60.436612][ T6801] ? __brelse+0x84/0xa0 [ 60.440910][ T6801] ? __ext4_new_inode+0x144/0x57c0 [ 60.446172][ T6801] ext4_getblk+0xad/0x520 [ 60.451340][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.457201][ T6801] ? ext4_free_inode+0x17e0/0x17e0 [ 60.462378][ T6801] ext4_bread+0x7c/0x380 [ 60.466616][ T6801] ? ext4_getblk+0x520/0x520 [ 60.471208][ T6801] ? dqget+0xff0/0xff0 [ 60.475524][ T6801] ext4_append+0x153/0x360 [ 60.480547][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 60.485089][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 60.489976][ T6801] ? security_inode_permission+0xc4/0xf0 [ 60.495872][ T6801] vfs_mkdir+0x419/0x690 [ 60.500247][ T6801] do_mkdirat+0x21e/0x280 [ 60.505196][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.510358][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.516473][ T6801] ? do_syscall_64+0x21/0x7d0 [ 60.521182][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.527633][ T6801] do_syscall_64+0xf6/0x7d0 [ 60.532138][ T6801] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.538384][ T6801] RIP: 0033:0x45bee7 [ 60.542561][ T6801] 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 [ 60.564514][ T6801] RSP: 002b:00007ffdfd933518 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.573142][ T6801] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.581473][ T6801] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffdfd9336f0 [ 60.590531][ T6801] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002ec0 [ 60.598508][ T6801] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.607315][ T6801] R13: 00007ffdfd9336f0 R14: 8421084210842109 R15: 00007ffdfd9336fc [ 60.692369][ T6802] IPVS: ftp: loaded support on port[0] = 21 [ 60.731438][ T6802] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6802 [ 60.741485][ T6802] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.747919][ T6802] CPU: 1 PID: 6802 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.756673][ T6802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.766977][ T6802] Call Trace: [ 60.770690][ T6802] dump_stack+0x188/0x20d [ 60.775355][ T6802] debug_smp_processor_id.cold+0x88/0x9b [ 60.781182][ T6802] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.786413][ T6802] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.792243][ T6802] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.798630][ T6802] ext4_ext_map_blocks+0x2044/0x3410 [ 60.805026][ T6802] ? ext4_ext_release+0x10/0x10 [ 60.810273][ T6802] ? __down_timeout+0x2d0/0x2d0 [ 60.815749][ T6802] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.821378][ T6802] ext4_map_blocks+0x4cb/0x1640 [ 60.826524][ T6802] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.834799][ T6802] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.840640][ T6802] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.846790][ T6802] ? prandom_u32_state+0xe/0x170 [ 60.853343][ T6802] ? __brelse+0x84/0xa0 [ 60.858413][ T6802] ? __ext4_new_inode+0x144/0x57c0 [ 60.863876][ T6802] ext4_getblk+0xad/0x520 [ 60.870337][ T6802] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.876327][ T6802] ? ext4_free_inode+0x17e0/0x17e0 [ 60.882290][ T6802] ext4_bread+0x7c/0x380 [ 60.886795][ T6802] ? ext4_getblk+0x520/0x520 [ 60.891995][ T6802] ? dqget+0xff0/0xff0 [ 60.896439][ T6802] ext4_append+0x153/0x360 [ 60.900867][ T6802] ext4_mkdir+0x5e0/0xdf0 [ 60.905416][ T6802] ? ext4_rmdir+0xde0/0xde0 [ 60.910541][ T6802] ? security_inode_permission+0xc4/0xf0 [ 60.917394][ T6802] vfs_mkdir+0x419/0x690 [ 60.922575][ T6802] do_mkdirat+0x21e/0x280 [ 60.927726][ T6802] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.932615][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.939448][ T6802] ? do_syscall_64+0x21/0x7d0 [ 60.944612][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.951119][ T6802] do_syscall_64+0xf6/0x7d0 [ 60.956027][ T6802] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.962136][ T6802] RIP: 0033:0x45bee7 [ 60.966082][ T6802] 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 [ 60.987211][ T6802] RSP: 002b:00007ffdfd933408 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.995705][ T6802] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 61.004739][ T6802] RDX: 00007ffdfd933453 RSI: 00000000000001ff RDI: 00007ffdfd933450 [ 61.013648][ T6802] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.022630][ T6802] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 61.036195][ T6802] R13: 00007ffdfd933440 R14: 0000000000000000 R15: 00007ffdfd933450 [ 61.084844][ T6802] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6802 [ 61.096225][ T6802] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.102760][ T6802] CPU: 0 PID: 6802 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.111662][ T6802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.122327][ T6802] Call Trace: [ 61.125987][ T6802] dump_stack+0x188/0x20d [ 61.130422][ T6802] debug_smp_processor_id.cold+0x88/0x9b [ 61.136352][ T6802] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.141887][ T6802] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.147821][ T6802] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.154153][ T6802] ext4_ext_map_blocks+0x2044/0x3410 [ 61.160425][ T6802] ? ext4_ext_release+0x10/0x10 [ 61.165446][ T6802] ? __down_timeout+0x2d0/0x2d0 [ 61.170752][ T6802] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.176655][ T6802] ext4_map_blocks+0x4cb/0x1640 [ 61.181605][ T6802] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.187189][ T6802] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.192910][ T6802] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.199551][ T6802] ? prandom_u32_state+0xe/0x170 [ 61.204495][ T6802] ? __brelse+0x84/0xa0 [ 61.208644][ T6802] ? __ext4_new_inode+0x144/0x57c0 [ 61.213943][ T6802] ext4_getblk+0xad/0x520 [ 61.218468][ T6802] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.224331][ T6802] ? ext4_free_inode+0x17e0/0x17e0 [ 61.229900][ T6802] ext4_bread+0x7c/0x380 [ 61.234142][ T6802] ? ext4_getblk+0x520/0x520 [ 61.238769][ T6802] ? dqget+0xff0/0xff0 [ 61.243029][ T6802] ext4_append+0x153/0x360 [ 61.248037][ T6802] ext4_mkdir+0x5e0/0xdf0 [ 61.252670][ T6802] ? ext4_rmdir+0xde0/0xde0 [ 61.257201][ T6802] ? security_inode_permission+0xc4/0xf0 [ 61.263369][ T6802] vfs_mkdir+0x419/0x690 [ 61.268080][ T6802] do_mkdirat+0x21e/0x280 [ 61.272587][ T6802] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.277524][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.283768][ T6802] ? do_syscall_64+0x21/0x7d0 [ 61.288680][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.295340][ T6802] do_syscall_64+0xf6/0x7d0 [ 61.300179][ T6802] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.306480][ T6802] RIP: 0033:0x45bee7 [ 61.310496][ T6802] 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 2020/06/13 00:47:55 building call list... [ 61.330600][ T6802] RSP: 002b:00007ffdfd933408 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 61.339006][ T6802] RAX: ffffffffffffffda RBX: 000000000000eea0 RCX: 000000000045bee7 [ 61.347151][ T6802] RDX: 00007ffdfd933453 RSI: 00000000000001ff RDI: 00007ffdfd933450 [ 61.355420][ T6802] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.363474][ T6802] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 61.371668][ T6802] R13: 00007ffdfd933440 R14: 000000000000ee90 R15: 00007ffdfd933450 [ 61.656068][ T154] tipc: TX() has been purged, node left! executing program [ 63.104491][ T6791] can: request_module (can-proto-0) failed. [ 63.571867][ T1159] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1159 [ 63.585381][ T1159] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.592027][ T1159] CPU: 0 PID: 1159 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.600571][ T1159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.611818][ T1159] Call Trace: [ 63.615261][ T1159] dump_stack+0x188/0x20d [ 63.619710][ T1159] debug_smp_processor_id.cold+0x88/0x9b [ 63.626056][ T1159] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.631621][ T1159] ? __kmalloc+0x62f/0x7a0 [ 63.636415][ T1159] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.642760][ T1159] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.649493][ T1159] ext4_ext_map_blocks+0x2044/0x3410 [ 63.655265][ T1159] ? ext4_ext_release+0x10/0x10 [ 63.660622][ T1159] ? __down_timeout+0x2d0/0x2d0 [ 63.666009][ T1159] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.671910][ T1159] ext4_map_blocks+0x4cb/0x1640 [ 63.676819][ T1159] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.682752][ T1159] ? debug_smp_processor_id+0x2f/0x185 [ 63.688392][ T1159] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.694088][ T1159] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.700243][ T1159] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.706555][ T1159] ext4_writepages+0x1ab7/0x3400 [ 63.712116][ T1159] ? mark_lock+0x30/0xdd0 [ 63.716802][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.722623][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.728346][ T1159] ? do_writepages+0xfa/0x2a0 [ 63.734155][ T1159] do_writepages+0xfa/0x2a0 [ 63.739053][ T1159] ? page_writeback_cpu_online+0x10/0x10 [ 63.745167][ T1159] ? do_raw_spin_lock+0x129/0x2e0 [ 63.750447][ T1159] ? do_raw_spin_unlock+0x171/0x260 [ 63.756180][ T1159] ? _raw_spin_unlock+0x24/0x40 [ 63.761315][ T1159] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.767032][ T1159] ? collapse_file+0x3575/0x4300 [ 63.771971][ T1159] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.778218][ T1159] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.783558][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.789538][ T1159] collapse_file+0x357f/0x4300 [ 63.794435][ T1159] ? collapse_huge_page+0x4370/0x4370 [ 63.800021][ T1159] ? khugepaged+0x24fa/0x3f80 [ 63.806044][ T1159] khugepaged+0x3049/0x3f80 [ 63.810817][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.817177][ T1159] ? lock_downgrade+0x840/0x840 [ 63.822648][ T1159] ? finish_wait+0x260/0x260 [ 63.827347][ T1159] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.833590][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.839873][ T1159] ? __kthread_parkme+0x13f/0x1e0 [ 63.844932][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.851479][ T1159] kthread+0x388/0x470 [ 63.855850][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.862139][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.868153][ T1159] ret_from_fork+0x24/0x30 [ 63.931636][ T1159] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1159 [ 63.941248][ T1159] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.947525][ T1159] CPU: 1 PID: 1159 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.955587][ T1159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.965738][ T1159] Call Trace: [ 63.969184][ T1159] dump_stack+0x188/0x20d [ 63.973917][ T1159] debug_smp_processor_id.cold+0x88/0x9b [ 63.979559][ T1159] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.985401][ T1159] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.991174][ T1159] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.997897][ T1159] ext4_ext_map_blocks+0x2044/0x3410 [ 64.003305][ T1159] ? ext4_ext_release+0x10/0x10 [ 64.008168][ T1159] ? __down_timeout+0x2d0/0x2d0 [ 64.013022][ T1159] ? ext4_es_lookup_extent+0x41d/0xd30 [ 64.018639][ T1159] ext4_map_blocks+0x4cb/0x1640 [ 64.023585][ T1159] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.028883][ T1159] ? debug_smp_processor_id+0x2f/0x185 [ 64.034543][ T1159] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.040289][ T1159] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.046305][ T1159] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.052271][ T1159] ext4_writepages+0x1ab7/0x3400 [ 64.057383][ T1159] ? mark_lock+0x30/0xdd0 [ 64.062007][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.067672][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.073410][ T1159] ? do_writepages+0xfa/0x2a0 [ 64.078139][ T1159] do_writepages+0xfa/0x2a0 [ 64.082695][ T1159] ? page_writeback_cpu_online+0x10/0x10 [ 64.088328][ T1159] ? do_raw_spin_lock+0x129/0x2e0 [ 64.093350][ T1159] ? do_raw_spin_unlock+0x171/0x260 [ 64.098543][ T1159] ? _raw_spin_unlock+0x24/0x40 [ 64.103440][ T1159] __filemap_fdatawrite_range+0x2aa/0x390 [ 64.109603][ T1159] ? collapse_file+0x3575/0x4300 [ 64.114700][ T1159] ? delete_from_page_cache_batch+0xec0/0xec0 [ 64.120833][ T1159] ? _raw_spin_unlock_irq+0x1f/0x80 [ 64.126282][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.132299][ T1159] collapse_file+0x357f/0x4300 [ 64.137070][ T1159] ? collapse_huge_page+0x4370/0x4370 [ 64.142483][ T1159] ? khugepaged+0x24fa/0x3f80 [ 64.147202][ T1159] khugepaged+0x3049/0x3f80 [ 64.151807][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.157448][ T1159] ? lock_downgrade+0x840/0x840 [ 64.162465][ T1159] ? finish_wait+0x260/0x260 [ 64.167048][ T1159] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 64.173287][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.179366][ T1159] ? __kthread_parkme+0x13f/0x1e0 [ 64.184457][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.190087][ T1159] kthread+0x388/0x470 [ 64.194321][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.200154][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.207213][ T1159] ret_from_fork+0x24/0x30 [ 64.244520][ T6791] can: request_module (can-proto-0) failed. [ 64.263404][ T6791] can: request_module (can-proto-0) failed. [ 64.265317][ T1159] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1159 [ 64.279110][ T1159] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 64.285014][ T1159] CPU: 1 PID: 1159 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 64.293254][ T1159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.303450][ T1159] Call Trace: [ 64.306765][ T1159] dump_stack+0x188/0x20d [ 64.311129][ T1159] debug_smp_processor_id.cold+0x88/0x9b [ 64.316873][ T1159] ext4_mb_new_blocks+0xa77/0x3b30 [ 64.322113][ T1159] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.327777][ T1159] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 64.333953][ T1159] ext4_ext_map_blocks+0x2044/0x3410 [ 64.339437][ T1159] ? ext4_ext_release+0x10/0x10 [ 64.344321][ T1159] ? __down_timeout+0x2d0/0x2d0 [ 64.349189][ T1159] ? ext4_es_lookup_extent+0x41d/0xd30 [ 64.354671][ T1159] ext4_map_blocks+0x4cb/0x1640 [ 64.359545][ T1159] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.364871][ T1159] ? debug_smp_processor_id+0x2f/0x185 [ 64.370534][ T1159] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.376104][ T1159] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.382476][ T1159] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.388071][ T1159] ext4_writepages+0x1ab7/0x3400 [ 64.393462][ T1159] ? mark_lock+0x30/0xdd0 [ 64.397886][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.403666][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.409487][ T1159] ? do_writepages+0xfa/0x2a0 [ 64.414310][ T1159] do_writepages+0xfa/0x2a0 [ 64.418841][ T1159] ? page_writeback_cpu_online+0x10/0x10 [ 64.424610][ T1159] ? do_raw_spin_lock+0x129/0x2e0 [ 64.429793][ T1159] ? do_raw_spin_unlock+0x171/0x260 [ 64.435176][ T1159] ? _raw_spin_unlock+0x24/0x40 [ 64.440069][ T1159] __filemap_fdatawrite_range+0x2aa/0x390 [ 64.445934][ T1159] ? collapse_file+0x3575/0x4300 [ 64.451100][ T1159] ? delete_from_page_cache_batch+0xec0/0xec0 [ 64.457199][ T1159] ? _raw_spin_unlock_irq+0x1f/0x80 [ 64.462554][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.468822][ T1159] collapse_file+0x357f/0x4300 [ 64.473706][ T1159] ? collapse_huge_page+0x4370/0x4370 [ 64.479262][ T1159] ? khugepaged+0x24fa/0x3f80 [ 64.483979][ T1159] khugepaged+0x3049/0x3f80 [ 64.488721][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.494628][ T1159] ? lock_downgrade+0x840/0x840 [ 64.499507][ T1159] ? finish_wait+0x260/0x260 [ 64.504345][ T1159] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 64.510168][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.516175][ T1159] ? __kthread_parkme+0x13f/0x1e0 [ 64.521412][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.527062][ T1159] kthread+0x388/0x470 [ 64.531462][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.537277][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.543027][ T1159] ret_from_fork+0x24/0x30