[[0;32m OK [0m] Started Getty on tty3. [[0;32m OK [0m] Started Getty on tty2. [[0;32m OK [0m] Started Getty on tty1. [[0;32m OK [0m] Started Serial Getty on ttyS0. [[0;32m OK [0m] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 55.333090][ T6794] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6794 [ 55.343373][ T6794] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 55.349740][ T6794] CPU: 1 PID: 6794 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 55.358165][ T6794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.368314][ T6794] Call Trace: [ 55.371596][ T6794] dump_stack+0x188/0x20d [ 55.375932][ T6794] debug_smp_processor_id.cold+0x88/0x9b [ 55.381549][ T6794] ext4_mb_new_blocks+0xa77/0x3b30 [ 55.386794][ T6794] ? ext4_ext_search_right+0x2ca/0xb20 [ 55.392517][ T6794] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 55.398235][ T6794] ext4_ext_map_blocks+0x2044/0x3410 [ 55.403730][ T6794] ? ext4_ext_release+0x10/0x10 [ 55.408575][ T6794] ? __down_timeout+0x2d0/0x2d0 [ 55.413406][ T6794] ? ext4_es_lookup_extent+0x41d/0xd30 [ 55.418985][ T6794] ext4_map_blocks+0x4cb/0x1640 [ 55.423839][ T6794] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 55.429134][ T6794] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.434695][ T6794] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.440697][ T6794] ? prandom_u32_state+0xe/0x170 [ 55.445646][ T6794] ? __brelse+0x84/0xa0 [ 55.449886][ T6794] ? __ext4_new_inode+0x144/0x57c0 [ 55.455005][ T6794] ext4_getblk+0xad/0x520 [ 55.459333][ T6794] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 55.465033][ T6794] ? ext4_free_inode+0x17e0/0x17e0 [ 55.470143][ T6794] ext4_bread+0x7c/0x380 [ 55.474486][ T6794] ? ext4_getblk+0x520/0x520 [ 55.479150][ T6794] ? dqget+0xff0/0xff0 [ 55.483313][ T6794] ext4_append+0x153/0x360 [ 55.487720][ T6794] ext4_mkdir+0x5e0/0xdf0 [ 55.492036][ T6794] ? ext4_rmdir+0xde0/0xde0 [ 55.496540][ T6794] ? security_inode_permission+0xc4/0xf0 [ 55.502265][ T6794] vfs_mkdir+0x419/0x690 [ 55.506505][ T6794] do_mkdirat+0x21e/0x280 [ 55.510912][ T6794] ? __ia32_sys_mknod+0xb0/0xb0 [ 55.515777][ T6794] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 55.522127][ T6794] ? do_syscall_64+0x21/0x7d0 [ 55.526825][ T6794] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 55.535119][ T6794] do_syscall_64+0xf6/0x7d0 [ 55.540736][ T6794] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 55.547055][ T6794] RIP: 0033:0x7fa2b34b4687 [ 55.551460][ T6794] 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 [ 55.574231][ T6794] RSP: 002b:00007fffbb97ba28 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 55.583473][ T6794] RAX: ffffffffffffffda RBX: 000055fa815aa985 RCX: 00007fa2b34b4687 [ 55.592734][ T6794] RDX: 00007fffbb97b8f0 RSI: 00000000000001ed RDI: 000055fa815aa985 [ 55.600856][ T6794] RBP: 00007fa2b34b4680 R08: 0000000000000100 R09: 0000000000000000 [ 55.609054][ T6794] R10: 000055fa815aa980 R11: 0000000000000246 R12: 00000000000001ed [ 55.618769][ T6794] R13: 00007fffbb97bbb0 R14: 0000000000000000 R15: 0000000000000000 [ 57.666793][ T26] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:2/26 [ 57.676574][ T26] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.682553][ T26] CPU: 1 PID: 26 Comm: kworker/u4:2 Not tainted 5.7.0-syzkaller #0 [ 57.690676][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.700820][ T26] Workqueue: writeback wb_workfn (flush-8:0) [ 57.706801][ T26] Call Trace: [ 57.710079][ T26] dump_stack+0x188/0x20d [ 57.714387][ T26] debug_smp_processor_id.cold+0x88/0x9b [ 57.719999][ T26] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.725096][ T26] ? __kmalloc+0x62f/0x7a0 [ 57.729525][ T26] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.735209][ T26] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.741166][ T26] ext4_ext_map_blocks+0x2044/0x3410 [ 57.746565][ T26] ? ext4_ext_release+0x10/0x10 [ 57.751705][ T26] ? __down_timeout+0x2d0/0x2d0 [ 57.756539][ T26] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.762302][ T26] ? debug_smp_processor_id+0x2f/0x185 [ 57.768699][ T26] ext4_map_blocks+0x4cb/0x1640 [ 57.774307][ T26] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.779745][ T26] ? debug_smp_processor_id+0x2f/0x185 [ 57.785210][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.790971][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.796947][ T26] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.802401][ T26] ext4_writepages+0x1ab7/0x3400 [ 57.807617][ T26] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.813238][ T26] ? __lock_acquire+0x2224/0x48a0 [ 57.818302][ T26] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.824322][ T26] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.830368][ T26] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.836109][ T26] ? do_writepages+0xfa/0x2a0 [ 57.840816][ T26] do_writepages+0xfa/0x2a0 [ 57.845652][ T26] ? page_writeback_cpu_online+0x10/0x10 [ 57.851509][ T26] ? debug_smp_processor_id+0x2f/0x185 [ 57.856965][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.862627][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.868775][ T26] ? lock_downgrade+0x840/0x840 [ 57.873637][ T26] __writeback_single_inode+0x12a/0x1410 [ 57.879279][ T26] ? _raw_spin_unlock+0x24/0x40 [ 57.884127][ T26] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.890102][ T26] writeback_sb_inodes+0x515/0xdd0 [ 57.895212][ T26] ? __writeback_single_inode+0x1410/0x1410 [ 57.901095][ T26] __writeback_inodes_wb+0xc3/0x250 [ 57.906276][ T26] wb_writeback+0x910/0xd90 [ 57.910910][ T26] ? print_usage_bug+0x240/0x240 [ 57.915862][ T26] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.922180][ T26] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.929140][ T26] ? cpumask_next+0x3c/0x40 [ 57.933634][ T26] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.938927][ T26] wb_workfn+0xadf/0x10d0 [ 57.944238][ T26] ? inode_wait_for_writeback+0x30/0x30 [ 57.949791][ T26] ? debug_smp_processor_id+0x2f/0x185 [ 57.955235][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.960792][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.966769][ T26] process_one_work+0x965/0x16a0 [ 57.971714][ T26] ? lock_release+0x800/0x800 [ 57.976397][ T26] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.982663][ T26] ? rwlock_bug.part.0+0x90/0x90 [ 57.987586][ T26] worker_thread+0x96/0xe10 [ 57.992091][ T26] ? process_one_work+0x16a0/0x16a0 [ 57.997372][ T26] kthread+0x388/0x470 [ 58.001424][ T26] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.007295][ T26] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.013001][ T26] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.33' (ECDSA) to the list of known hosts. 2020/06/08 18:31:37 fuzzer started 2020/06/08 18:31:37 connecting to host at 10.128.0.26:34165 2020/06/08 18:31:37 checking machine... 2020/06/08 18:31:37 checking revisions... 2020/06/08 18:31:37 testing simple program... [ 60.493061][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6805 [ 60.502893][ T6805] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.508916][ T6805] CPU: 1 PID: 6805 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 60.517516][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.527592][ T6805] Call Trace: [ 60.530892][ T6805] dump_stack+0x188/0x20d [ 60.535336][ T6805] debug_smp_processor_id.cold+0x88/0x9b [ 60.540984][ T6805] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.546145][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.551610][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.557613][ T6805] ext4_ext_map_blocks+0x2044/0x3410 [ 60.562905][ T6805] ? ext4_ext_release+0x10/0x10 [ 60.567878][ T6805] ? __down_timeout+0x2d0/0x2d0 [ 60.572737][ T6805] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.578236][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 60.583072][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.588261][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.593814][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.599797][ T6805] ? prandom_u32_state+0xe/0x170 [ 60.604736][ T6805] ? __brelse+0x84/0xa0 [ 60.608894][ T6805] ? __ext4_new_inode+0x144/0x57c0 [ 60.614003][ T6805] ext4_getblk+0xad/0x520 [ 60.620143][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.625869][ T6805] ? ext4_free_inode+0x17e0/0x17e0 [ 60.631750][ T6805] ext4_bread+0x7c/0x380 [ 60.635997][ T6805] ? ext4_getblk+0x520/0x520 [ 60.640650][ T6805] ? dqget+0xff0/0xff0 [ 60.644714][ T6805] ext4_append+0x153/0x360 [ 60.649138][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 60.654378][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 60.658963][ T6805] ? security_inode_permission+0xc4/0xf0 [ 60.664722][ T6805] vfs_mkdir+0x419/0x690 [ 60.668999][ T6805] do_mkdirat+0x21e/0x280 [ 60.673698][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.678561][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.684554][ T6805] ? do_syscall_64+0x21/0x7d0 [ 60.689246][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.695331][ T6805] do_syscall_64+0xf6/0x7d0 [ 60.699848][ T6805] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.705754][ T6805] RIP: 0033:0x4b02a0 [ 60.709655][ 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 [ 60.729351][ T6805] RSP: 002b:000000c0000df4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.737858][ T6805] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 60.745988][ T6805] RDX: 00000000000001c0 RSI: 000000c0000267c0 RDI: ffffffffffffff9c [ 60.753986][ T6805] RBP: 000000c0000df510 R08: 0000000000000000 R09: 0000000000000000 [ 60.761948][ T6805] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.770277][ T6805] R13: 000000000000003f R14: 000000000000003e R15: 0000000000000100 [ 60.798868][ T6820] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6820 [ 60.808693][ T6820] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.814609][ T6820] CPU: 1 PID: 6820 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.823002][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.833060][ T6820] Call Trace: [ 60.836365][ T6820] dump_stack+0x188/0x20d [ 60.840706][ T6820] debug_smp_processor_id.cold+0x88/0x9b [ 60.846344][ T6820] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.851460][ T6820] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.857039][ T6820] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.862772][ T6820] ext4_ext_map_blocks+0x2044/0x3410 [ 60.868127][ T6820] ? ext4_ext_release+0x10/0x10 [ 60.873153][ T6820] ? __down_timeout+0x2d0/0x2d0 [ 60.878139][ T6820] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.883599][ T6820] ext4_map_blocks+0x4cb/0x1640 [ 60.889069][ T6820] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.894355][ T6820] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.899898][ T6820] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.906560][ T6820] ? prandom_u32_state+0xe/0x170 [ 60.911580][ T6820] ? __brelse+0x84/0xa0 [ 60.915840][ T6820] ? __ext4_new_inode+0x144/0x57c0 [ 60.920956][ T6820] ext4_getblk+0xad/0x520 [ 60.926532][ T6820] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.932260][ T6820] ? ext4_free_inode+0x17e0/0x17e0 [ 60.937529][ T6820] ext4_bread+0x7c/0x380 [ 60.941914][ T6820] ? ext4_getblk+0x520/0x520 [ 60.946523][ T6820] ? dqget+0xff0/0xff0 [ 60.950577][ T6820] ext4_append+0x153/0x360 [ 60.954992][ T6820] ext4_mkdir+0x5e0/0xdf0 [ 60.959433][ T6820] ? ext4_rmdir+0xde0/0xde0 [ 60.963948][ T6820] ? security_inode_permission+0xc4/0xf0 [ 60.969570][ T6820] vfs_mkdir+0x419/0x690 [ 60.973798][ T6820] do_mkdirat+0x21e/0x280 [ 60.978289][ T6820] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.983144][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.989123][ T6820] ? do_syscall_64+0x21/0x7d0 [ 60.993789][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.999754][ T6820] do_syscall_64+0xf6/0x7d0 [ 61.004242][ T6820] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.010142][ T6820] RIP: 0033:0x45bee7 [ 61.014035][ T6820] 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 [ 61.034661][ T6820] RSP: 002b:00007ffc702ddcc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 61.043766][ T6820] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 61.051728][ T6820] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc702ddea0 [ 61.060019][ T6820] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002d40 [ 61.068112][ T6820] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 61.076080][ T6820] R13: 00007ffc702ddea0 R14: 8421084210842109 R15: 00007ffc702ddeac [ 61.161665][ T6821] IPVS: ftp: loaded support on port[0] = 21 [ 61.202067][ T6821] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6821 [ 61.212053][ T6821] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.218510][ T6821] CPU: 0 PID: 6821 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.226846][ T6821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.236979][ T6821] Call Trace: [ 61.240315][ T6821] dump_stack+0x188/0x20d [ 61.244638][ T6821] debug_smp_processor_id.cold+0x88/0x9b [ 61.250259][ T6821] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.255449][ T6821] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.260911][ T6821] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.266615][ T6821] ext4_ext_map_blocks+0x2044/0x3410 [ 61.272034][ T6821] ? ext4_ext_release+0x10/0x10 [ 61.276886][ T6821] ? __down_timeout+0x2d0/0x2d0 [ 61.281720][ T6821] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.287196][ T6821] ext4_map_blocks+0x4cb/0x1640 [ 61.292270][ T6821] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.297680][ T6821] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.303413][ T6821] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.309401][ T6821] ? prandom_u32_state+0xe/0x170 [ 61.314341][ T6821] ? __brelse+0x84/0xa0 [ 61.318505][ T6821] ? __ext4_new_inode+0x144/0x57c0 [ 61.323761][ T6821] ext4_getblk+0xad/0x520 [ 61.328224][ T6821] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.334527][ T6821] ? ext4_free_inode+0x17e0/0x17e0 [ 61.339737][ T6821] ext4_bread+0x7c/0x380 [ 61.343982][ T6821] ? ext4_getblk+0x520/0x520 [ 61.348555][ T6821] ? dqget+0xff0/0xff0 [ 61.352627][ T6821] ext4_append+0x153/0x360 [ 61.357118][ T6821] ext4_mkdir+0x5e0/0xdf0 [ 61.361445][ T6821] ? ext4_rmdir+0xde0/0xde0 [ 61.365968][ T6821] ? security_inode_permission+0xc4/0xf0 [ 61.371718][ T6821] vfs_mkdir+0x419/0x690 [ 61.376073][ T6821] do_mkdirat+0x21e/0x280 [ 61.380381][ T6821] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.385238][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.391199][ T6821] ? do_syscall_64+0x21/0x7d0 [ 61.395878][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.401866][ T6821] do_syscall_64+0xf6/0x7d0 [ 61.406363][ T6821] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.412261][ T6821] RIP: 0033:0x45bee7 [ 61.416155][ T6821] 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 [ 61.436288][ T6821] RSP: 002b:00007ffc702ddbb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.444795][ T6821] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 61.452762][ T6821] RDX: 00007ffc702ddc03 RSI: 00000000000001ff RDI: 00007ffc702ddc00 [ 61.460717][ T6821] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.468667][ T6821] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 61.476633][ T6821] R13: 00007ffc702ddbf0 R14: 0000000000000000 R15: 00007ffc702ddc00 [ 61.527819][ T6821] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6821 [ 61.537286][ T6821] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.543193][ T6821] CPU: 0 PID: 6821 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.551452][ T6821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.562032][ T6821] Call Trace: [ 61.565349][ T6821] dump_stack+0x188/0x20d [ 61.569695][ T6821] debug_smp_processor_id.cold+0x88/0x9b [ 61.575337][ T6821] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.580479][ T6821] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.586140][ T6821] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.592527][ T6821] ext4_ext_map_blocks+0x2044/0x3410 [ 61.597857][ T6821] ? ext4_ext_release+0x10/0x10 [ 61.602720][ T6821] ? __down_timeout+0x2d0/0x2d0 [ 61.607711][ T6821] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.613168][ T6821] ext4_map_blocks+0x4cb/0x1640 [ 61.618036][ T6821] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.623235][ T6821] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.628762][ T6821] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.634937][ T6821] ? prandom_u32_state+0xe/0x170 [ 61.639881][ T6821] ? __brelse+0x84/0xa0 [ 61.644105][ T6821] ? __ext4_new_inode+0x144/0x57c0 [ 61.649234][ T6821] ext4_getblk+0xad/0x520 [ 61.653575][ T6821] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.659746][ T6821] ? ext4_free_inode+0x17e0/0x17e0 [ 61.664873][ T6821] ext4_bread+0x7c/0x380 [ 61.669125][ T6821] ? ext4_getblk+0x520/0x520 [ 61.673731][ T6821] ? dqget+0xff0/0xff0 [ 61.677822][ T6821] ext4_append+0x153/0x360 [ 61.682245][ T6821] ext4_mkdir+0x5e0/0xdf0 [ 61.686685][ T6821] ? ext4_rmdir+0xde0/0xde0 [ 61.691193][ T6821] ? security_inode_permission+0xc4/0xf0 [ 61.696827][ T6821] vfs_mkdir+0x419/0x690 [ 61.701053][ T6821] do_mkdirat+0x21e/0x280 [ 61.705394][ T6821] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.710820][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.716824][ T6821] ? do_syscall_64+0x21/0x7d0 [ 61.721486][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.727466][ T6821] do_syscall_64+0xf6/0x7d0 [ 61.731961][ T6821] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.737841][ T6821] RIP: 0033:0x45bee7 [ 61.741714][ T6821] 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 [ 61.761550][ T6821] RSP: 002b:00007ffc702ddbb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.770043][ T6821] RAX: ffffffffffffffda RBX: 000000000000f04f RCX: 000000000045bee7 2020/06/08 18:31:39 building call list... [ 61.778014][ T6821] RDX: 00007ffc702ddc03 RSI: 00000000000001ff RDI: 00007ffc702ddc00 [ 61.785969][ T6821] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.794988][ T6821] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 61.803185][ T6821] R13: 00007ffc702ddbf0 R14: 000000000000f03d R15: 00007ffc702ddc00 [ 62.065544][ T26] tipc: TX() has been purged, node left! [ 62.960085][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 62.969961][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.976015][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.983922][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.994160][ T1154] Call Trace: [ 62.997537][ T1154] dump_stack+0x188/0x20d [ 63.001868][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 63.007493][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.012641][ T1154] ? __kmalloc+0x62f/0x7a0 [ 63.017373][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.022827][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.028750][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 63.034116][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.039091][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 63.043941][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.049460][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.054316][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.059500][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 63.064966][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.070573][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.076594][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.082296][ T1154] ext4_writepages+0x1ab7/0x3400 [ 63.087297][ T1154] ? mark_lock+0x30/0xdd0 [ 63.091705][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.097363][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.102987][ T1154] ? do_writepages+0xfa/0x2a0 [ 63.107668][ T1154] do_writepages+0xfa/0x2a0 [ 63.112195][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.117843][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 63.122869][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.128098][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.133159][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.138986][ T1154] ? collapse_file+0x3575/0x4300 [ 63.143943][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.150231][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.156235][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.162215][ T1154] collapse_file+0x357f/0x4300 [ 63.167272][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 63.172993][ T1154] ? khugepaged+0x24fa/0x3f80 [ 63.177675][ T1154] khugepaged+0x3049/0x3f80 [ 63.182567][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.188326][ T1154] ? lock_downgrade+0x840/0x840 [ 63.193203][ T1154] ? finish_wait+0x260/0x260 [ 63.197807][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.203827][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.210138][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.215515][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.221714][ T1154] kthread+0x388/0x470 [ 63.225798][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.232640][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.238374][ T1154] ret_from_fork+0x24/0x30 executing program [ 63.343304][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 63.353047][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.359070][ T1154] CPU: 1 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.367132][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.378648][ T1154] Call Trace: [ 63.381982][ T1154] dump_stack+0x188/0x20d [ 63.386317][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 63.392148][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.397279][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.402745][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.409769][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 63.415169][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.420043][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 63.424890][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.430350][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.435234][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.440438][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 63.445913][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.451703][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.458061][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.463504][ T1154] ext4_writepages+0x1ab7/0x3400 [ 63.468468][ T1154] ? mark_lock+0x30/0xdd0 [ 63.472869][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.478705][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.484347][ T1154] ? do_writepages+0xfa/0x2a0 [ 63.489010][ T1154] do_writepages+0xfa/0x2a0 [ 63.493510][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.499134][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 63.504139][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.510027][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.514859][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.520597][ T1154] ? collapse_file+0x3575/0x4300 [ 63.525542][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.531602][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.536801][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.542789][ T1154] collapse_file+0x357f/0x4300 [ 63.547568][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 63.552930][ T1154] ? khugepaged+0x24fa/0x3f80 [ 63.557891][ T1154] khugepaged+0x3049/0x3f80 [ 63.562406][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.568021][ T1154] ? lock_downgrade+0x840/0x840 [ 63.572849][ T1154] ? finish_wait+0x260/0x260 [ 63.577617][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.583401][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.589404][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.594435][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.600061][ T1154] kthread+0x388/0x470 [ 63.604110][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.609946][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.615674][ T1154] ret_from_fork+0x24/0x30 [ 63.747668][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 63.756840][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.762775][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.770658][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.781503][ T1154] Call Trace: [ 63.784800][ T1154] dump_stack+0x188/0x20d [ 63.789132][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 63.795223][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.800694][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.806152][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.812329][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 63.817628][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.822500][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 63.827347][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.832839][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.837957][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.843161][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 63.848665][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.854242][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.860753][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.866448][ T1154] ext4_writepages+0x1ab7/0x3400 [ 63.871499][ T1154] ? mark_lock+0x30/0xdd0 [ 63.875963][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.881653][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.888158][ T1154] ? do_writepages+0xfa/0x2a0 [ 63.893404][ T1154] do_writepages+0xfa/0x2a0 [ 63.897945][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.903591][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 63.908612][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.913804][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.918683][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.924497][ T1154] ? collapse_file+0x3575/0x4300 [ 63.929427][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.935497][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.940693][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.946671][ T1154] collapse_file+0x357f/0x4300 [ 63.951464][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 63.956831][ T1154] ? khugepaged+0x24fa/0x3f80 [ 63.961531][ T1154] khugepaged+0x3049/0x3f80 [ 63.966057][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.971714][ T1154] ? lock_downgrade+0x840/0x840 [ 63.976582][ T1154] ? finish_wait+0x260/0x260 [ 63.982262][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.988156][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.994137][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.999183][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.004826][ T1154] kthread+0x388/0x470 [ 64.008911][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.014974][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.020696][ T1154] ret_from_fork+0x24/0x30 [ 64.302949][ T6815] can: request_module (can-proto-0) failed. [ 64.834844][ T6815] can: request_module (can-proto-0) failed. [ 64.847935][ T6815] can: request_module (can-proto-0) failed.