Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. [ 40.952004][ T23] kauditd_printk_skb: 65 callbacks suppressed [ 40.952010][ T23] audit: type=1400 audit(1649448711.280:148): avc: denied { mounton } for pid=406 comm="syz-executor518" path="/syzcgroup/unified" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=dir permissive=1 [ 40.982104][ T406] cgroup: Unknown subsys name 'net' [ 40.987567][ T406] cgroup: Unknown subsys name 'devices' [ 40.993986][ T406] cgroup: Unknown subsys name 'hugetlb' [ 41.000435][ T406] cgroup: Unknown subsys name 'rlimit' [ 41.006591][ T23] audit: type=1400 audit(1649448711.330:149): avc: denied { mounton } for pid=406 comm="syz-executor518" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 41.064856][ T23] audit: type=1400 audit(1649448711.330:150): avc: denied { mount } for pid=406 comm="syz-executor518" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 41.090938][ T23] audit: type=1400 audit(1649448711.340:151): avc: denied { mounton } for pid=414 comm="syz-executor518" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 41.107859][ T423] FAULT_INJECTION: forcing a failure. [ 41.107859][ T423] name failslab, interval 1, probability 0, space 0, times 1 [ 41.117823][ T23] audit: type=1400 audit(1649448711.360:152): avc: denied { mount } for pid=414 comm="syz-executor518" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 41.134003][ T423] CPU: 0 PID: 423 Comm: syz-executor518 Not tainted 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 41.151062][ T23] audit: type=1400 audit(1649448711.380:153): avc: denied { mounton } for pid=422 comm="syz-executor518" path="/root/syzkaller.WVdKKh/0/file0" dev="sda1" ino=1158 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 41.160786][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.160792][ T423] Call Trace: [ 41.160816][ T423] dump_stack_lvl+0x1e2/0x24b [ 41.160825][ T423] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.160834][ T423] dump_stack+0x15/0x17 [ 41.160842][ T423] should_fail+0x3c0/0x510 [ 41.160854][ T423] ? allocate_cgrp_cset_links+0xb3/0x270 [ 41.160865][ T423] __should_failslab+0x9f/0xe0 [ 41.160875][ T423] should_failslab+0x9/0x20 [ 41.160899][ T423] kmem_cache_alloc_trace+0x3a/0x330 [ 41.237799][ T423] allocate_cgrp_cset_links+0xb3/0x270 [ 41.243243][ T423] find_css_set+0xb13/0x1db0 [ 41.247929][ T423] ? _raw_spin_unlock_irq+0x4e/0x70 [ 41.253203][ T423] ? rcu_sync_enter_start+0x70/0x70 [ 41.258391][ T423] ? idr_replace+0x1c4/0x230 [ 41.263048][ T423] ? cgroup_migrate_prepare_dst+0x950/0x950 [ 41.268923][ T423] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 41.273937][ T423] ? refcount_dec_if_one+0x130/0x130 [ 41.279230][ T423] ? cpumask_next+0x23/0x30 [ 41.283892][ T423] ? percpu_down_write+0x226/0x380 [ 41.288990][ T423] cgroup_migrate_prepare_dst+0xd1/0x950 [ 41.294691][ T423] cgroup_apply_control+0x54e/0x710 [ 41.299876][ T423] ? css_next_child+0x160/0x160 [ 41.304703][ T423] ? stack_trace_save+0x12d/0x1f0 [ 41.309713][ T423] ? __kasan_check_write+0x14/0x20 [ 41.314827][ T423] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 41.320111][ T423] cgroup_subtree_control_write+0xd19/0x1310 [ 41.326232][ T423] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.332208][ T423] ? __kasan_check_write+0x14/0x20 [ 41.337481][ T423] ? _copy_from_iter+0x3fb/0xd60 [ 41.342429][ T423] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.348492][ T423] cgroup_file_write+0x28e/0x590 [ 41.353501][ T423] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.358703][ T423] ? mutex_lock+0xa6/0x110 [ 41.363248][ T423] ? mutex_trylock+0xb0/0xb0 [ 41.367823][ T423] ? __kasan_check_write+0x14/0x20 [ 41.373023][ T423] kernfs_fop_write_iter+0x2d0/0x410 [ 41.378323][ T423] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.383423][ T423] vfs_write+0xc1c/0xf40 [ 41.387673][ T423] ? slab_free_freelist_hook+0xcc/0x1a0 [ 41.393213][ T423] ? kernel_write+0x3c0/0x3c0 [ 41.397881][ T423] ? mutex_trylock+0xb0/0xb0 [ 41.402450][ T423] ? __fdget_pos+0x26d/0x310 [ 41.407040][ T423] ? ksys_write+0x77/0x2c0 [ 41.411705][ T423] ksys_write+0x198/0x2c0 [ 41.416278][ T423] ? __kasan_check_write+0x14/0x20 [ 41.421502][ T423] ? __ia32_sys_read+0x90/0x90 [ 41.426262][ T423] ? debug_smp_processor_id+0x17/0x20 [ 41.431806][ T423] __x64_sys_write+0x7b/0x90 [ 41.436390][ T423] do_syscall_64+0x34/0x70 [ 41.440795][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.446684][ T423] RIP: 0033:0x7f3803699249 [ 41.451105][ T423] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 41.471013][ T423] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 41.479695][ T423] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 41.487653][ T423] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 41.495970][ T423] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 41.503950][ T423] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 41.511930][ T423] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 41.549910][ T431] FAULT_INJECTION: forcing a failure. [ 41.549910][ T431] name failslab, interval 1, probability 0, space 0, times 0 [ 41.562725][ T431] CPU: 0 PID: 431 Comm: syz-executor518 Not tainted 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 41.573178][ T431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.583496][ T431] Call Trace: [ 41.586896][ T431] dump_stack_lvl+0x1e2/0x24b [ 41.591671][ T431] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.597117][ T431] ? selinux_kernfs_init_security+0x1a8/0x760 [ 41.603552][ T431] dump_stack+0x15/0x17 [ 41.607885][ T431] should_fail+0x3c0/0x510 [ 41.612390][ T431] ? __kernfs_new_node+0x99/0x6e0 [ 41.617403][ T431] __should_failslab+0x9f/0xe0 [ 41.622157][ T431] should_failslab+0x9/0x20 [ 41.626663][ T431] __kmalloc_track_caller+0x5f/0x350 [ 41.631949][ T431] kstrdup_const+0x55/0x90 [ 41.636757][ T431] __kernfs_new_node+0x99/0x6e0 [ 41.641615][ T431] ? is_module_text_address+0xe1/0x140 [ 41.647067][ T431] ? kernfs_new_node+0x170/0x170 [ 41.652126][ T431] ? ptr_to_hashval+0x60/0x60 [ 41.656885][ T431] ? arch_stack_walk+0xf8/0x140 [ 41.662351][ T431] ? snprintf+0xd6/0x120 [ 41.666590][ T431] kernfs_new_node+0x97/0x170 [ 41.671498][ T431] __kernfs_create_file+0x4a/0x270 [ 41.676601][ T431] cgroup_addrm_files+0xab8/0xfe0 [ 41.681619][ T431] ? ____kasan_kmalloc+0xdc/0x110 [ 41.686626][ T431] ? __kasan_kmalloc+0x9/0x10 [ 41.691285][ T431] ? kmem_cache_alloc_trace+0x1dd/0x330 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 41.696909][ T431] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 41.703043][ T431] ? delete_node+0x759/0x7b0 [ 41.707637][ T431] ? __kasan_check_read+0x11/0x20 [ 41.712828][ T431] ? delete_node+0x759/0x7b0 [ 41.717492][ T431] ? __kasan_check_write+0x14/0x20 [ 41.722604][ T431] ? idr_replace+0x1c4/0x230 [ 41.727176][ T431] ? idr_get_next+0x4b0/0x4b0 [ 41.731846][ T431] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 41.736884][ T431] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 41.742082][ T431] css_populate_dir+0x137/0x370 [ 41.747030][ T431] cgroup_apply_control_enable+0x8b9/0x12f0 [ 41.752930][ T431] cgroup_apply_control+0x93/0x710 [ 41.758053][ T431] ? css_next_child+0x160/0x160 [ 41.762897][ T431] ? io_schedule+0x120/0x120 [ 41.767492][ T431] ? kernfs_fop_write_iter+0x15e/0x410 [ 41.772946][ T431] ? __kasan_check_write+0x14/0x20 [ 41.778451][ T431] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 41.783913][ T431] cgroup_subtree_control_write+0xd19/0x1310 [ 41.789902][ T431] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.795883][ T431] ? __kasan_check_write+0x14/0x20 [ 41.800984][ T431] ? _copy_from_iter+0x3fb/0xd60 [ 41.805897][ T431] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.811883][ T431] cgroup_file_write+0x28e/0x590 [ 41.817039][ T431] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.822150][ T431] ? mutex_lock+0xa6/0x110 [ 41.826583][ T431] ? mutex_trylock+0xb0/0xb0 [ 41.831428][ T431] ? __kasan_check_write+0x14/0x20 [ 41.836535][ T431] kernfs_fop_write_iter+0x2d0/0x410 [ 41.841848][ T431] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.846948][ T431] vfs_write+0xc1c/0xf40 [ 41.851175][ T431] ? kernel_write+0x3c0/0x3c0 [ 41.855855][ T431] ? mutex_trylock+0xb0/0xb0 [ 41.860450][ T431] ? __fdget_pos+0x26d/0x310 [ 41.865099][ T431] ? ksys_write+0x77/0x2c0 [ 41.869526][ T431] ksys_write+0x198/0x2c0 [ 41.873865][ T431] ? __ia32_sys_read+0x90/0x90 [ 41.878738][ T431] ? debug_smp_processor_id+0x17/0x20 [ 41.884364][ T431] __x64_sys_write+0x7b/0x90 [ 41.889090][ T431] do_syscall_64+0x34/0x70 [ 41.893499][ T431] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.899379][ T431] RIP: 0033:0x7f3803699249 [ 41.903863][ T431] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 41.923572][ T431] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 41.932039][ T431] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 41.940122][ T431] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 41.948399][ T431] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 41.956806][ T431] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.965112][ T431] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 41.973442][ T431] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 42.019868][ T430] FAULT_INJECTION: forcing a failure. [ 42.019868][ T430] name failslab, interval 1, probability 0, space 0, times 0 [ 42.032521][ T430] CPU: 1 PID: 430 Comm: syz-executor518 Not tainted 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 42.042834][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.053221][ T430] Call Trace: [ 42.056500][ T430] dump_stack_lvl+0x1e2/0x24b [ 42.061265][ T430] ? panic+0x7d7/0x7d7 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 42.065319][ T430] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.071167][ T430] ? find_next_bit+0xd6/0x120 [ 42.075853][ T430] ? cpumask_next+0x11/0x30 [ 42.080376][ T430] dump_stack+0x15/0x17 [ 42.084523][ T430] should_fail+0x3c0/0x510 [ 42.088927][ T430] ? percpu_ref_init+0xd0/0x330 [ 42.093795][ T430] __should_failslab+0x9f/0xe0 [ 42.098562][ T430] should_failslab+0x9/0x20 [ 42.103060][ T430] kmem_cache_alloc_trace+0x3a/0x330 [ 42.108359][ T430] percpu_ref_init+0xd0/0x330 [ 42.113018][ T430] ? cgroup_setup_root+0xea0/0xea0 [ 42.118106][ T430] cgroup_apply_control_enable+0x3a2/0x12f0 [ 42.123981][ T430] cgroup_apply_control+0x93/0x710 [ 42.129092][ T430] ? css_next_child+0x160/0x160 [ 42.133933][ T430] ? stack_trace_save+0x12d/0x1f0 [ 42.139031][ T430] ? io_schedule+0x120/0x120 [ 42.143842][ T430] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.149306][ T430] ? __kasan_check_write+0x14/0x20 [ 42.154405][ T430] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.159761][ T430] cgroup_subtree_control_write+0xd19/0x1310 [ 42.166074][ T430] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.172128][ T430] ? __kasan_check_write+0x14/0x20 [ 42.177225][ T430] ? _copy_from_iter+0x3fb/0xd60 [ 42.182236][ T430] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.188193][ T430] cgroup_file_write+0x28e/0x590 [ 42.193107][ T430] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.198458][ T430] ? mutex_lock+0xa6/0x110 [ 42.202853][ T430] ? mutex_trylock+0xb0/0xb0 [ 42.207509][ T430] ? __kasan_check_write+0x14/0x20 [ 42.212683][ T430] kernfs_fop_write_iter+0x2d0/0x410 [ 42.217954][ T430] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.223051][ T430] vfs_write+0xc1c/0xf40 [ 42.227279][ T430] ? slab_free_freelist_hook+0xcc/0x1a0 [ 42.233297][ T430] ? kernel_write+0x3c0/0x3c0 [ 42.238060][ T430] ? mutex_trylock+0xb0/0xb0 [ 42.242648][ T430] ? __fdget_pos+0x26d/0x310 [ 42.247574][ T430] ? ksys_write+0x77/0x2c0 [ 42.252961][ T430] ksys_write+0x198/0x2c0 [ 42.257285][ T430] ? __ia32_sys_read+0x90/0x90 [ 42.262041][ T430] ? debug_smp_processor_id+0x17/0x20 [ 42.267432][ T430] __x64_sys_write+0x7b/0x90 [ 42.272361][ T430] do_syscall_64+0x34/0x70 [ 42.276759][ T430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.282628][ T430] RIP: 0033:0x7f3803699249 [ 42.287024][ T430] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 42.307820][ T430] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.316301][ T430] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 42.324251][ T430] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 42.332289][ T430] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 42.340241][ T430] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.348536][ T430] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 42.389958][ T439] FAULT_INJECTION: forcing a failure. [ 42.389958][ T439] name failslab, interval 1, probability 0, space 0, times 0 [ 42.402748][ T439] CPU: 0 PID: 439 Comm: syz-executor518 Not tainted 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 42.413108][ T439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.423522][ T439] Call Trace: [ 42.426936][ T439] dump_stack_lvl+0x1e2/0x24b [ 42.431906][ T439] ? panic+0x7d7/0x7d7 [ 42.436005][ T439] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.441444][ T439] ? find_next_bit+0xd6/0x120 [ 42.446104][ T439] ? cpumask_next+0x11/0x30 [ 42.450586][ T439] dump_stack+0x15/0x17 [ 42.454719][ T439] should_fail+0x3c0/0x510 [ 42.459147][ T439] ? percpu_ref_init+0xd0/0x330 [ 42.463979][ T439] __should_failslab+0x9f/0xe0 [ 42.468723][ T439] should_failslab+0x9/0x20 [ 42.473217][ T439] kmem_cache_alloc_trace+0x3a/0x330 [ 42.478612][ T439] percpu_ref_init+0xd0/0x330 [ 42.483394][ T439] ? cgroup_setup_root+0xea0/0xea0 [ 42.488518][ T439] cgroup_apply_control_enable+0x3a2/0x12f0 [ 42.494505][ T439] cgroup_apply_control+0x93/0x710 [ 42.499806][ T439] ? css_next_child+0x160/0x160 [ 42.504683][ T439] ? release_task_stack+0x4c2/0x660 [ 42.509899][ T439] ? io_schedule+0x120/0x120 [ 42.514495][ T439] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.519936][ T439] ? __kasan_check_write+0x14/0x20 [ 42.525134][ T439] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.530492][ T439] cgroup_subtree_control_write+0xd19/0x1310 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 42.536453][ T439] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.542674][ T439] ? __kasan_check_write+0x14/0x20 [ 42.548299][ T439] ? _copy_from_iter+0x3fb/0xd60 [ 42.554253][ T439] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.560370][ T439] cgroup_file_write+0x28e/0x590 [ 42.568642][ T439] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.575535][ T439] ? mutex_lock+0xa6/0x110 [ 42.580624][ T439] ? mutex_trylock+0xb0/0xb0 [ 42.585207][ T439] ? __kasan_check_write+0x14/0x20 [ 42.590389][ T439] kernfs_fop_write_iter+0x2d0/0x410 [ 42.595833][ T439] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.600925][ T439] vfs_write+0xc1c/0xf40 [ 42.605177][ T439] ? kernel_write+0x3c0/0x3c0 [ 42.609844][ T439] ? mutex_trylock+0xb0/0xb0 [ 42.614524][ T439] ? __fdget_pos+0x26d/0x310 [ 42.619180][ T439] ? ksys_write+0x77/0x2c0 [ 42.623577][ T439] ksys_write+0x198/0x2c0 [ 42.627886][ T439] ? __ia32_sys_read+0x90/0x90 [ 42.632634][ T439] ? debug_smp_processor_id+0x17/0x20 [ 42.638165][ T439] __x64_sys_write+0x7b/0x90 [ 42.642758][ T439] do_syscall_64+0x34/0x70 [ 42.647156][ T439] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.654490][ T439] RIP: 0033:0x7f3803699249 [ 42.659007][ T439] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 42.679685][ T439] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.688084][ T439] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 42.696157][ T439] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 42.704134][ T439] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 42.712330][ T439] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.720372][ T439] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 42.749780][ T432] FAULT_INJECTION: forcing a failure. [ 42.749780][ T432] name failslab, interval 1, probability 0, space 0, times 0 [ 42.762626][ T432] CPU: 0 PID: 432 Comm: syz-executor518 Not tainted 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 42.773041][ T432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.783086][ T432] Call Trace: [ 42.786620][ T432] dump_stack_lvl+0x1e2/0x24b [ 42.791290][ T432] ? bfq_pos_tree_add_move+0x43e/0x43e write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 42.796832][ T432] ? selinux_kernfs_init_security+0x1a8/0x760 [ 42.803316][ T432] dump_stack+0x15/0x17 [ 42.807460][ T432] should_fail+0x3c0/0x510 [ 42.811860][ T432] ? __kernfs_new_node+0x99/0x6e0 [ 42.816872][ T432] __should_failslab+0x9f/0xe0 [ 42.821749][ T432] should_failslab+0x9/0x20 [ 42.826434][ T432] __kmalloc_track_caller+0x5f/0x350 [ 42.831783][ T432] kstrdup_const+0x55/0x90 [ 42.836281][ T432] __kernfs_new_node+0x99/0x6e0 [ 42.841296][ T432] ? is_module_text_address+0xe1/0x140 [ 42.846833][ T432] ? kernfs_new_node+0x170/0x170 [ 42.851972][ T432] ? ptr_to_hashval+0x60/0x60 [ 42.857374][ T432] ? arch_stack_walk+0xf8/0x140 [ 42.862212][ T432] ? snprintf+0xd6/0x120 [ 42.866453][ T432] kernfs_new_node+0x97/0x170 [ 42.871290][ T432] __kernfs_create_file+0x4a/0x270 [ 42.876604][ T432] cgroup_addrm_files+0xab8/0xfe0 [ 42.881730][ T432] ? ____kasan_kmalloc+0xdc/0x110 [ 42.886888][ T432] ? __kasan_kmalloc+0x9/0x10 [ 42.891652][ T432] ? kmem_cache_alloc_trace+0x1dd/0x330 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 42.897821][ T432] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 42.904787][ T432] ? delete_node+0x759/0x7b0 [ 42.909389][ T432] ? __kasan_check_read+0x11/0x20 [ 42.914593][ T432] ? delete_node+0x759/0x7b0 [ 42.919288][ T432] ? __kasan_check_write+0x14/0x20 [ 42.924386][ T432] ? idr_replace+0x1c4/0x230 [ 42.928968][ T432] ? idr_get_next+0x4b0/0x4b0 [ 42.933644][ T432] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 42.938729][ T432] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 42.943932][ T432] css_populate_dir+0x137/0x370 [ 42.948857][ T432] cgroup_apply_control_enable+0x8b9/0x12f0 [ 42.954940][ T432] cgroup_apply_control+0x93/0x710 [ 42.960950][ T432] ? css_next_child+0x160/0x160 [ 42.968383][ T432] ? release_task_stack+0x4c2/0x660 [ 42.974582][ T432] ? io_schedule+0x120/0x120 [ 42.979620][ T432] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.985435][ T432] ? __kasan_check_write+0x14/0x20 [ 42.992590][ T432] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.999265][ T432] cgroup_subtree_control_write+0xd19/0x1310 [ 43.005432][ T432] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.011493][ T432] ? __kasan_check_write+0x14/0x20 [ 43.016881][ T432] ? _copy_from_iter+0x3fb/0xd60 [ 43.021812][ T432] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.028340][ T432] cgroup_file_write+0x28e/0x590 [ 43.033396][ T432] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.038497][ T432] ? mutex_lock+0xa6/0x110 [ 43.043112][ T432] ? mutex_trylock+0xb0/0xb0 [ 43.048246][ T432] ? __kasan_check_write+0x14/0x20 [ 43.053592][ T432] kernfs_fop_write_iter+0x2d0/0x410 [ 43.059315][ T432] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.064440][ T432] vfs_write+0xc1c/0xf40 [ 43.068669][ T432] ? kernel_write+0x3c0/0x3c0 [ 43.073342][ T432] ? mutex_trylock+0xb0/0xb0 [ 43.077949][ T432] ? __fdget_pos+0x26d/0x310 [ 43.082926][ T432] ? ksys_write+0x77/0x2c0 [ 43.087615][ T432] ksys_write+0x198/0x2c0 [ 43.092177][ T432] ? __ia32_sys_read+0x90/0x90 [ 43.097026][ T432] ? debug_smp_processor_id+0x17/0x20 [ 43.102553][ T432] __x64_sys_write+0x7b/0x90 [ 43.107129][ T432] do_syscall_64+0x34/0x70 [ 43.111531][ T432] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.117448][ T432] RIP: 0033:0x7f3803699249 [ 43.121955][ T432] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 43.141652][ T432] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 43.150053][ T432] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 43.158097][ T432] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 43.166048][ T432] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 43.174006][ T432] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.181984][ T432] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 43.190455][ T432] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 43.239930][ T446] FAULT_INJECTION: forcing a failure. [ 43.239930][ T446] name failslab, interval 1, probability 0, space 0, times 0 [ 43.252848][ T446] CPU: 0 PID: 446 Comm: syz-executor518 Not tainted 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 43.263521][ T446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.273707][ T446] Call Trace: [ 43.277029][ T446] dump_stack_lvl+0x1e2/0x24b [ 43.282309][ T446] ? panic+0x7d7/0x7d7 [ 43.286446][ T446] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.291988][ T446] ? find_next_bit+0xd6/0x120 [ 43.296667][ T446] ? cpumask_next+0x11/0x30 [ 43.301332][ T446] dump_stack+0x15/0x17 [ 43.305635][ T446] should_fail+0x3c0/0x510 [ 43.310073][ T446] ? percpu_ref_init+0xd0/0x330 [ 43.315150][ T446] __should_failslab+0x9f/0xe0 [ 43.320275][ T446] should_failslab+0x9/0x20 [ 43.324785][ T446] kmem_cache_alloc_trace+0x3a/0x330 [ 43.330173][ T446] percpu_ref_init+0xd0/0x330 [ 43.335094][ T446] ? cgroup_setup_root+0xea0/0xea0 [ 43.340199][ T446] cgroup_apply_control_enable+0x3a2/0x12f0 [ 43.346199][ T446] cgroup_apply_control+0x93/0x710 [ 43.351393][ T446] ? css_next_child+0x160/0x160 [ 43.356346][ T446] ? stack_trace_save+0x12d/0x1f0 [ 43.361696][ T446] ? io_schedule+0x120/0x120 [ 43.366404][ T446] ? kernfs_fop_write_iter+0x15e/0x410 [ 43.371861][ T446] ? __kasan_check_write+0x14/0x20 [ 43.377078][ T446] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 43.382606][ T446] cgroup_subtree_control_write+0xd19/0x1310 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 43.388748][ T446] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.394762][ T446] ? __kasan_check_write+0x14/0x20 [ 43.400415][ T446] ? _copy_from_iter+0x3fb/0xd60 [ 43.405604][ T446] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.411723][ T446] cgroup_file_write+0x28e/0x590 [ 43.416701][ T446] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.421833][ T446] ? mutex_lock+0xa6/0x110 [ 43.426247][ T446] ? mutex_trylock+0xb0/0xb0 [ 43.430854][ T446] ? __kasan_check_write+0x14/0x20 [ 43.436140][ T446] kernfs_fop_write_iter+0x2d0/0x410 [ 43.441534][ T446] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.446762][ T446] vfs_write+0xc1c/0xf40 [ 43.451000][ T446] ? slab_free_freelist_hook+0xcc/0x1a0 [ 43.456531][ T446] ? kernel_write+0x3c0/0x3c0 [ 43.461188][ T446] ? mutex_trylock+0xb0/0xb0 [ 43.465759][ T446] ? __fdget_pos+0x26d/0x310 [ 43.470339][ T446] ? ksys_write+0x77/0x2c0 [ 43.474751][ T446] ksys_write+0x198/0x2c0 [ 43.479066][ T446] ? __ia32_sys_read+0x90/0x90 [ 43.483814][ T446] ? debug_smp_processor_id+0x17/0x20 [ 43.489322][ T446] __x64_sys_write+0x7b/0x90 [ 43.493911][ T446] do_syscall_64+0x34/0x70 [ 43.498319][ T446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.504809][ T446] RIP: 0033:0x7f3803699249 [ 43.509223][ T446] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 43.529978][ T446] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 43.538394][ T446] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 43.546583][ T446] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 43.554832][ T446] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 43.562856][ T446] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.571954][ T446] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 43.582007][ T414] ------------[ cut here ]------------ [ 43.587513][ T414] WARNING: CPU: 0 PID: 414 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 43.596498][ T414] Modules linked in: [ 43.600562][ T414] CPU: 0 PID: 414 Comm: syz-executor518 Not tainted 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 43.610832][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.620938][ T414] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 43.626564][ T414] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 43.646307][ T414] RSP: 0018:ffffc90000bb7ba0 EFLAGS: 00010293 [ 43.652424][ T414] RAX: ffffffff81b68a8a RBX: 00000000ffffffff RCX: ffff88810c124f00 [ 43.660413][ T414] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 43.668471][ T414] RBP: ffffc90000bb7c70 R08: ffffffff81b68778 R09: 0000000000000003 [ 43.676492][ T414] R10: fffff52000176f65 R11: 1ffff92000176f64 R12: dffffc0000000000 [ 43.684527][ T414] R13: ffff88810ea26a80 R14: ffffc90000bb7c00 R15: 1ffff92000176f7c [ 43.692547][ T414] FS: 0000555555ea5400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 43.701813][ T414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.708834][ T414] CR2: 0000555555eaf738 CR3: 000000011ed78000 CR4: 00000000003506b0 [ 43.717220][ T414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.725347][ T414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.734081][ T414] Call Trace: [ 43.737381][ T414] ? io_schedule+0x120/0x120 [ 43.742067][ T414] ? vfs_submount+0xb0/0xb0 [ 43.746571][ T414] ? shrink_dentry_list+0x4ec/0x500 [ 43.751822][ T414] ? __kasan_check_write+0x14/0x20 [ 43.756936][ T414] namespace_unlock+0x448/0x4f0 [ 43.762326][ T414] ? umount_tree+0xf50/0xf50 [ 43.766929][ T414] ? __detach_mounts+0x670/0x670 [ 43.771951][ T414] ? selinux_umount+0xf0/0x130 [ 43.776797][ T414] ? security_sb_umount+0x9d/0xb0 [ 43.781913][ T414] path_umount+0xf03/0xfb0 [ 43.786428][ T414] ? namespace_unlock+0x4f0/0x4f0 [ 43.791477][ T414] ? user_path_at_empty+0x40/0x50 [ 43.796513][ T414] __x64_sys_umount+0x122/0x170 [ 43.801363][ T414] ? path_umount+0xfb0/0xfb0 [ 43.805939][ T414] ? debug_smp_processor_id+0x17/0x20 [ 43.811324][ T414] do_syscall_64+0x34/0x70 [ 43.816164][ T414] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.822061][ T414] RIP: 0033:0x7f380369a657 [ 43.826462][ T414] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 43.846195][ T414] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 43.854655][ T414] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 43.862658][ T414] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 43.870636][ T414] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 43.878796][ T414] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 43.886867][ T414] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 43.895242][ T414] ---[ end trace 28f614c52c1e300f ]--- [ 43.900809][ T414] ------------[ cut here ]------------ [ 43.906279][ T414] WARNING: CPU: 0 PID: 414 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 43.915368][ T414] Modules linked in: [ 43.919363][ T414] CPU: 0 PID: 414 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 43.931110][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.941357][ T414] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 43.947080][ T414] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 43.967113][ T414] RSP: 0018:ffffc90000bb7ca0 EFLAGS: 00010293 [ 43.973296][ T414] RAX: ffffffff81b68a8a RBX: 00000000fffffffe RCX: ffff88810c124f00 [ 43.981277][ T414] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 43.989483][ T414] RBP: ffffc90000bb7d70 R08: ffffffff81b68778 R09: 0000000000000003 [ 43.998031][ T414] R10: fffff52000176f85 R11: 1ffff92000176f84 R12: dffffc0000000000 [ 44.006209][ T414] R13: ffff88810ea26a80 R14: ffffc90000bb7d00 R15: 1ffff92000176f9c [ 44.014294][ T414] FS: 0000555555ea5400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 44.023498][ T414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.030106][ T414] CR2: 0000555555eaf738 CR3: 000000011ed78000 CR4: 00000000003506b0 [ 44.038071][ T414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.046100][ T414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.054567][ T414] Call Trace: [ 44.058166][ T414] ? lockref_get_or_lock+0x340/0x340 [ 44.063487][ T414] ? umount_tree+0xf50/0xf50 [ 44.068269][ T414] ? vfs_submount+0xb0/0xb0 [ 44.072781][ T414] ? dput+0x2b6/0x320 [ 44.076846][ T414] path_umount+0x1fe/0xfb0 [ 44.081622][ T414] ? namespace_unlock+0x4f0/0x4f0 [ 44.086635][ T414] ? user_path_at_empty+0x40/0x50 [ 44.092107][ T414] __x64_sys_umount+0x122/0x170 [ 44.097205][ T414] ? path_umount+0xfb0/0xfb0 [ 44.101804][ T414] ? debug_smp_processor_id+0x17/0x20 [ 44.107164][ T414] do_syscall_64+0x34/0x70 [ 44.111595][ T414] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.117692][ T414] RIP: 0033:0x7f380369a657 [ 44.122204][ T414] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 44.141962][ T414] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 44.150473][ T414] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 44.158432][ T414] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 44.166403][ T414] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 44.174383][ T414] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 44.182446][ T414] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 44.190780][ T414] ---[ end trace 28f614c52c1e3010 ]--- [ 44.196619][ T444] FAULT_INJECTION: forcing a failure. [ 44.196619][ T444] name failslab, interval 1, probability 0, space 0, times 0 [ 44.209462][ T444] CPU: 0 PID: 444 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 44.221634][ T444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.231885][ T444] Call Trace: [ 44.235258][ T444] dump_stack_lvl+0x1e2/0x24b [ 44.240024][ T444] ? panic+0x7d7/0x7d7 [ 44.245057][ T444] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.251302][ T444] ? find_next_bit+0xd6/0x120 [ 44.256399][ T444] ? cpumask_next+0x11/0x30 [ 44.261146][ T444] dump_stack+0x15/0x17 [ 44.265299][ T444] should_fail+0x3c0/0x510 [ 44.269698][ T444] ? percpu_ref_init+0xd0/0x330 [ 44.274535][ T444] __should_failslab+0x9f/0xe0 [ 44.279542][ T444] should_failslab+0x9/0x20 [ 44.284239][ T444] kmem_cache_alloc_trace+0x3a/0x330 [ 44.289534][ T444] percpu_ref_init+0xd0/0x330 [ 44.294194][ T444] ? cgroup_setup_root+0xea0/0xea0 [ 44.299294][ T444] cgroup_apply_control_enable+0x3a2/0x12f0 [ 44.305270][ T444] cgroup_apply_control+0x93/0x710 [ 44.310642][ T444] ? css_next_child+0x160/0x160 [ 44.315582][ T444] ? stack_trace_save+0x12d/0x1f0 [ 44.320616][ T444] ? io_schedule+0x120/0x120 [ 44.325194][ T444] ? kernfs_fop_write_iter+0x15e/0x410 [ 44.330675][ T444] ? __kasan_check_write+0x14/0x20 [ 44.335776][ T444] ? cgroup_kn_lock_live+0x1b0/0x2f0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 44.341072][ T444] cgroup_subtree_control_write+0xd19/0x1310 [ 44.347145][ T444] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.353117][ T444] ? __kasan_check_write+0x14/0x20 [ 44.358318][ T444] ? _copy_from_iter+0x3fb/0xd60 [ 44.363594][ T444] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.369770][ T444] cgroup_file_write+0x28e/0x590 [ 44.374989][ T444] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.380248][ T444] ? mutex_lock+0xa6/0x110 [ 44.384754][ T444] ? mutex_trylock+0xb0/0xb0 [ 44.389341][ T444] ? __kasan_check_write+0x14/0x20 [ 44.394440][ T444] kernfs_fop_write_iter+0x2d0/0x410 [ 44.399971][ T444] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.405180][ T444] vfs_write+0xc1c/0xf40 [ 44.409427][ T444] ? slab_free_freelist_hook+0xcc/0x1a0 [ 44.415234][ T444] ? kernel_write+0x3c0/0x3c0 [ 44.420014][ T444] ? mutex_trylock+0xb0/0xb0 [ 44.424982][ T444] ? __fdget_pos+0x26d/0x310 [ 44.430368][ T444] ? ksys_write+0x77/0x2c0 [ 44.434836][ T444] ksys_write+0x198/0x2c0 [ 44.439159][ T444] ? __kasan_check_write+0x14/0x20 [ 44.444254][ T444] ? __ia32_sys_read+0x90/0x90 [ 44.449193][ T444] ? debug_smp_processor_id+0x17/0x20 [ 44.454708][ T444] __x64_sys_write+0x7b/0x90 [ 44.459541][ T444] do_syscall_64+0x34/0x70 [ 44.463949][ T444] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.469836][ T444] RIP: 0033:0x7f3803699249 [ 44.474233][ T444] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 44.494063][ T444] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 44.502466][ T444] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 44.510705][ T444] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 44.519018][ T444] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 44.528386][ T444] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.536607][ T444] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 44.579979][ T449] FAULT_INJECTION: forcing a failure. [ 44.579979][ T449] name failslab, interval 1, probability 0, space 0, times 0 [ 44.593319][ T449] CPU: 1 PID: 449 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 44.604930][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.615980][ T449] Call Trace: [ 44.619280][ T449] dump_stack_lvl+0x1e2/0x24b [ 44.623963][ T449] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.629536][ T449] dump_stack+0x15/0x17 [ 44.634143][ T449] should_fail+0x3c0/0x510 [ 44.638560][ T449] ? pids_css_alloc+0x4e/0x120 [ 44.643424][ T449] __should_failslab+0x9f/0xe0 [ 44.648178][ T449] should_failslab+0x9/0x20 [ 44.652668][ T449] kmem_cache_alloc_trace+0x3a/0x330 [ 44.658000][ T449] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 44.663280][ T449] pids_css_alloc+0x4e/0x120 [ 44.667857][ T449] cgroup_apply_control_enable+0x350/0x12f0 [ 44.673739][ T449] cgroup_apply_control+0x93/0x710 [ 44.678838][ T449] ? css_next_child+0x160/0x160 [ 44.683686][ T449] ? release_task_stack+0x529/0x660 [ 44.688962][ T449] ? io_schedule+0x120/0x120 [ 44.693879][ T449] ? kernfs_fop_write_iter+0x15e/0x410 [ 44.699331][ T449] ? __kasan_check_write+0x14/0x20 [ 44.704539][ T449] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 44.709999][ T449] cgroup_subtree_control_write+0xd19/0x1310 [ 44.715979][ T449] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.722059][ T449] ? __kasan_check_write+0x14/0x20 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 44.727157][ T449] ? _copy_from_iter+0x3fb/0xd60 [ 44.732099][ T449] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.738126][ T449] cgroup_file_write+0x28e/0x590 [ 44.743072][ T449] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.748196][ T449] ? mutex_lock+0xa6/0x110 [ 44.752602][ T449] ? mutex_trylock+0xb0/0xb0 [ 44.757179][ T449] ? __kasan_check_write+0x14/0x20 [ 44.762417][ T449] kernfs_fop_write_iter+0x2d0/0x410 [ 44.767705][ T449] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.772838][ T449] vfs_write+0xc1c/0xf40 [ 44.777194][ T449] ? kernel_write+0x3c0/0x3c0 [ 44.782844][ T449] ? mutex_trylock+0xb0/0xb0 [ 44.787449][ T449] ? __fdget_pos+0x26d/0x310 [ 44.792023][ T449] ? ksys_write+0x77/0x2c0 [ 44.796462][ T449] ksys_write+0x198/0x2c0 [ 44.800999][ T449] ? __ia32_sys_read+0x90/0x90 [ 44.805774][ T449] ? debug_smp_processor_id+0x17/0x20 [ 44.811153][ T449] __x64_sys_write+0x7b/0x90 [ 44.815814][ T449] do_syscall_64+0x34/0x70 [ 44.820224][ T449] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.826631][ T449] RIP: 0033:0x7f3803699249 [ 44.831165][ T449] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 44.851234][ T449] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 44.859656][ T449] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 44.867731][ T449] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 44.875696][ T449] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 44.883930][ T449] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.892540][ T449] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 44.939816][ T437] FAULT_INJECTION: forcing a failure. [ 44.939816][ T437] name failslab, interval 1, probability 0, space 0, times 0 [ 44.952969][ T437] CPU: 1 PID: 437 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 44.965657][ T437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.976329][ T437] Call Trace: [ 44.979609][ T437] dump_stack_lvl+0x1e2/0x24b [ 44.984432][ T437] ? panic+0x7d7/0x7d7 [ 44.988666][ T437] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.994278][ T437] ? find_next_bit+0xd6/0x120 [ 44.999160][ T437] ? cpumask_next+0x11/0x30 [ 45.003651][ T437] dump_stack+0x15/0x17 [ 45.007787][ T437] should_fail+0x3c0/0x510 [ 45.012468][ T437] ? percpu_ref_init+0xd0/0x330 [ 45.017405][ T437] __should_failslab+0x9f/0xe0 [ 45.022154][ T437] should_failslab+0x9/0x20 [ 45.026634][ T437] kmem_cache_alloc_trace+0x3a/0x330 [ 45.031919][ T437] percpu_ref_init+0xd0/0x330 [ 45.036666][ T437] ? cgroup_setup_root+0xea0/0xea0 [ 45.042169][ T437] cgroup_apply_control_enable+0x3a2/0x12f0 [ 45.048620][ T437] cgroup_apply_control+0x93/0x710 [ 45.053812][ T437] ? css_next_child+0x160/0x160 [ 45.058654][ T437] ? io_schedule+0x120/0x120 [ 45.063355][ T437] ? kernfs_fop_write_iter+0x15e/0x410 [ 45.068810][ T437] ? __kasan_check_write+0x14/0x20 [ 45.073911][ T437] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 45.079185][ T437] cgroup_subtree_control_write+0xd19/0x1310 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 45.085180][ T437] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.091231][ T437] ? __kasan_check_write+0x14/0x20 [ 45.096611][ T437] ? _copy_from_iter+0x3fb/0xd60 [ 45.101578][ T437] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.107661][ T437] cgroup_file_write+0x28e/0x590 [ 45.112708][ T437] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.118773][ T437] ? mutex_lock+0xa6/0x110 [ 45.124236][ T437] ? mutex_trylock+0xb0/0xb0 [ 45.128816][ T437] ? __kasan_check_write+0x14/0x20 [ 45.134063][ T437] kernfs_fop_write_iter+0x2d0/0x410 [ 45.139360][ T437] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.144474][ T437] vfs_write+0xc1c/0xf40 [ 45.148817][ T437] ? kernel_write+0x3c0/0x3c0 [ 45.153584][ T437] ? mutex_trylock+0xb0/0xb0 [ 45.158252][ T437] ? __fdget_pos+0x26d/0x310 [ 45.162937][ T437] ? ksys_write+0x77/0x2c0 [ 45.167915][ T437] ksys_write+0x198/0x2c0 [ 45.172247][ T437] ? __ia32_sys_read+0x90/0x90 [ 45.176997][ T437] ? debug_smp_processor_id+0x17/0x20 [ 45.182364][ T437] __x64_sys_write+0x7b/0x90 [ 45.186940][ T437] do_syscall_64+0x34/0x70 [ 45.191340][ T437] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.197304][ T437] RIP: 0033:0x7f3803699249 [ 45.201722][ T437] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.221604][ T437] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.230444][ T437] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 45.238402][ T437] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 45.246373][ T437] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 45.254337][ T437] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.262318][ T437] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 45.309662][ T442] FAULT_INJECTION: forcing a failure. [ 45.309662][ T442] name failslab, interval 1, probability 0, space 0, times 0 [ 45.322793][ T442] CPU: 0 PID: 442 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 45.334500][ T442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.344806][ T442] Call Trace: [ 45.348109][ T442] dump_stack_lvl+0x1e2/0x24b [ 45.352785][ T442] ? panic+0x7d7/0x7d7 [ 45.356925][ T442] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.362366][ T442] ? find_next_bit+0xd6/0x120 [ 45.367021][ T442] ? cpumask_next+0x11/0x30 [ 45.371509][ T442] dump_stack+0x15/0x17 [ 45.375738][ T442] should_fail+0x3c0/0x510 [ 45.380220][ T442] ? percpu_ref_init+0xd0/0x330 [ 45.385069][ T442] __should_failslab+0x9f/0xe0 [ 45.389821][ T442] should_failslab+0x9/0x20 [ 45.394610][ T442] kmem_cache_alloc_trace+0x3a/0x330 [ 45.399886][ T442] percpu_ref_init+0xd0/0x330 [ 45.404649][ T442] ? cgroup_setup_root+0xea0/0xea0 [ 45.409745][ T442] cgroup_apply_control_enable+0x3a2/0x12f0 [ 45.415621][ T442] cgroup_apply_control+0x93/0x710 [ 45.420803][ T442] ? css_next_child+0x160/0x160 [ 45.425852][ T442] ? io_schedule+0x120/0x120 [ 45.430682][ T442] ? kernfs_fop_write_iter+0x15e/0x410 [ 45.436127][ T442] ? __kasan_check_write+0x14/0x20 [ 45.441220][ T442] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 45.446492][ T442] cgroup_subtree_control_write+0xd19/0x1310 [ 45.452556][ T442] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.458607][ T442] ? __kasan_check_write+0x14/0x20 [ 45.463709][ T442] ? _copy_from_iter+0x3fb/0xd60 [ 45.468639][ T442] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.474813][ T442] cgroup_file_write+0x28e/0x590 [ 45.479743][ T442] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.484846][ T442] ? mutex_lock+0xa6/0x110 [ 45.489775][ T442] ? mutex_trylock+0xb0/0xb0 [ 45.494349][ T442] ? __kasan_check_write+0x14/0x20 [ 45.499533][ T442] kernfs_fop_write_iter+0x2d0/0x410 [ 45.504972][ T442] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.510197][ T442] vfs_write+0xc1c/0xf40 [ 45.514462][ T442] ? kernel_write+0x3c0/0x3c0 [ 45.519118][ T442] ? mutex_trylock+0xb0/0xb0 [ 45.523776][ T442] ? __fdget_pos+0x26d/0x310 [ 45.528517][ T442] ? ksys_write+0x77/0x2c0 [ 45.533025][ T442] ksys_write+0x198/0x2c0 [ 45.537362][ T442] ? __ia32_sys_read+0x90/0x90 [ 45.542557][ T442] ? debug_smp_processor_id+0x17/0x20 [ 45.547924][ T442] __x64_sys_write+0x7b/0x90 [ 45.552584][ T442] do_syscall_64+0x34/0x70 [ 45.556992][ T442] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.562862][ T442] RIP: 0033:0x7f3803699249 [ 45.567274][ T442] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.587050][ T442] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.595553][ T442] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 45.603507][ T442] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 45.611544][ T442] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 45.619494][ T442] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.627453][ T442] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 45.669729][ T454] FAULT_INJECTION: forcing a failure. [ 45.669729][ T454] name failslab, interval 1, probability 0, space 0, times 0 [ 45.682863][ T454] CPU: 1 PID: 454 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 45.694572][ T454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.704613][ T454] Call Trace: [ 45.708120][ T454] dump_stack_lvl+0x1e2/0x24b [ 45.713055][ T454] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.718594][ T454] ? selinux_kernfs_init_security+0x1a8/0x760 [ 45.724755][ T454] dump_stack+0x15/0x17 [ 45.728939][ T454] should_fail+0x3c0/0x510 [ 45.733363][ T454] ? __kernfs_new_node+0x99/0x6e0 [ 45.738377][ T454] __should_failslab+0x9f/0xe0 [ 45.743213][ T454] should_failslab+0x9/0x20 [ 45.747697][ T454] __kmalloc_track_caller+0x5f/0x350 [ 45.753063][ T454] kstrdup_const+0x55/0x90 [ 45.757488][ T454] __kernfs_new_node+0x99/0x6e0 [ 45.762318][ T454] ? is_module_text_address+0xe1/0x140 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 45.767929][ T454] ? kernfs_new_node+0x170/0x170 [ 45.772940][ T454] ? ptr_to_hashval+0x60/0x60 [ 45.777762][ T454] ? arch_stack_walk+0xf8/0x140 [ 45.782792][ T454] ? snprintf+0xd6/0x120 [ 45.787018][ T454] kernfs_new_node+0x97/0x170 [ 45.791672][ T454] __kernfs_create_file+0x4a/0x270 [ 45.796773][ T454] cgroup_addrm_files+0xab8/0xfe0 [ 45.801779][ T454] ? ____kasan_kmalloc+0xdc/0x110 [ 45.806778][ T454] ? __kasan_kmalloc+0x9/0x10 [ 45.811430][ T454] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 45.816953][ T454] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 45.823088][ T454] ? delete_node+0x759/0x7b0 [ 45.827656][ T454] ? __kasan_check_read+0x11/0x20 [ 45.832664][ T454] ? delete_node+0x759/0x7b0 [ 45.837247][ T454] ? __kasan_check_write+0x14/0x20 [ 45.842344][ T454] ? idr_replace+0x1c4/0x230 [ 45.846915][ T454] ? idr_get_next+0x4b0/0x4b0 [ 45.851581][ T454] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 45.856618][ T454] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 45.861816][ T454] css_populate_dir+0x137/0x370 [ 45.866646][ T454] cgroup_apply_control_enable+0x8b9/0x12f0 [ 45.872538][ T454] cgroup_apply_control+0x93/0x710 [ 45.877654][ T454] ? css_next_child+0x160/0x160 [ 45.882597][ T454] ? stack_trace_save+0x12d/0x1f0 [ 45.887600][ T454] ? io_schedule+0x120/0x120 [ 45.892172][ T454] ? kernfs_fop_write_iter+0x15e/0x410 [ 45.897607][ T454] ? __kasan_check_write+0x14/0x20 [ 45.902710][ T454] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 45.907972][ T454] cgroup_subtree_control_write+0xd19/0x1310 [ 45.914342][ T454] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.920389][ T454] ? __kasan_check_write+0x14/0x20 [ 45.925481][ T454] ? _copy_from_iter+0x3fb/0xd60 [ 45.930396][ T454] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.936441][ T454] cgroup_file_write+0x28e/0x590 [ 45.941361][ T454] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.946448][ T454] ? mutex_lock+0xa6/0x110 [ 45.950838][ T454] ? mutex_trylock+0xb0/0xb0 [ 45.955401][ T454] ? __kasan_check_write+0x14/0x20 [ 45.960487][ T454] kernfs_fop_write_iter+0x2d0/0x410 [ 45.965744][ T454] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.970829][ T454] vfs_write+0xc1c/0xf40 [ 45.975060][ T454] ? slab_free_freelist_hook+0xcc/0x1a0 [ 45.980580][ T454] ? kernel_write+0x3c0/0x3c0 [ 45.985250][ T454] ? mutex_trylock+0xb0/0xb0 [ 45.989818][ T454] ? __fdget_pos+0x26d/0x310 [ 45.994396][ T454] ? ksys_write+0x77/0x2c0 [ 45.998783][ T454] ksys_write+0x198/0x2c0 [ 46.003093][ T454] ? __ia32_sys_read+0x90/0x90 [ 46.007833][ T454] ? debug_smp_processor_id+0x17/0x20 [ 46.013179][ T454] __x64_sys_write+0x7b/0x90 [ 46.017750][ T454] do_syscall_64+0x34/0x70 [ 46.022142][ T454] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.028014][ T454] RIP: 0033:0x7f3803699249 [ 46.032413][ T454] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.052090][ T454] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.060483][ T454] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 46.068614][ T454] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 46.076677][ T454] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 46.084730][ T454] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.092682][ T454] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 46.101338][ T454] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 46.149857][ T438] FAULT_INJECTION: forcing a failure. [ 46.149857][ T438] name failslab, interval 1, probability 0, space 0, times 0 [ 46.162538][ T438] CPU: 1 PID: 438 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 46.174230][ T438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.184296][ T438] Call Trace: [ 46.187575][ T438] dump_stack_lvl+0x1e2/0x24b [ 46.192399][ T438] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.197977][ T438] dump_stack+0x15/0x17 [ 46.202136][ T438] should_fail+0x3c0/0x510 [ 46.206729][ T438] ? pids_css_alloc+0x4e/0x120 [ 46.211481][ T438] __should_failslab+0x9f/0xe0 [ 46.216235][ T438] should_failslab+0x9/0x20 [ 46.220796][ T438] kmem_cache_alloc_trace+0x3a/0x330 [ 46.226246][ T438] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 46.231512][ T438] pids_css_alloc+0x4e/0x120 [ 46.236218][ T438] cgroup_apply_control_enable+0x350/0x12f0 [ 46.242121][ T438] cgroup_apply_control+0x93/0x710 [ 46.247280][ T438] ? css_next_child+0x160/0x160 [ 46.252108][ T438] ? release_task_stack+0x529/0x660 [ 46.257289][ T438] ? io_schedule+0x120/0x120 [ 46.261865][ T438] ? kernfs_fop_write_iter+0x15e/0x410 [ 46.267327][ T438] ? __kasan_check_write+0x14/0x20 [ 46.272413][ T438] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 46.277683][ T438] cgroup_subtree_control_write+0xd19/0x1310 [ 46.283649][ T438] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.289639][ T438] ? __kasan_check_write+0x14/0x20 [ 46.294726][ T438] ? _copy_from_iter+0x3fb/0xd60 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 46.299729][ T438] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.305697][ T438] cgroup_file_write+0x28e/0x590 [ 46.310711][ T438] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.315801][ T438] ? mutex_lock+0xa6/0x110 [ 46.320197][ T438] ? mutex_trylock+0xb0/0xb0 [ 46.324791][ T438] ? __kasan_check_write+0x14/0x20 [ 46.329881][ T438] kernfs_fop_write_iter+0x2d0/0x410 [ 46.335246][ T438] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.340382][ T438] vfs_write+0xc1c/0xf40 [ 46.344774][ T438] ? kernel_write+0x3c0/0x3c0 [ 46.349439][ T438] ? mutex_trylock+0xb0/0xb0 [ 46.354013][ T438] ? __fdget_pos+0x26d/0x310 [ 46.358578][ T438] ? ksys_write+0x77/0x2c0 [ 46.362969][ T438] ksys_write+0x198/0x2c0 [ 46.367284][ T438] ? __ia32_sys_read+0x90/0x90 [ 46.372051][ T438] ? debug_smp_processor_id+0x17/0x20 [ 46.377422][ T438] __x64_sys_write+0x7b/0x90 [ 46.381993][ T438] do_syscall_64+0x34/0x70 [ 46.386603][ T438] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.392691][ T438] RIP: 0033:0x7f3803699249 [ 46.397091][ T438] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.416808][ T438] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.425887][ T438] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 46.434073][ T438] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 46.442027][ T438] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 46.449988][ T438] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.458497][ T438] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 46.499773][ T459] FAULT_INJECTION: forcing a failure. [ 46.499773][ T459] name failslab, interval 1, probability 0, space 0, times 0 [ 46.512467][ T459] CPU: 1 PID: 459 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 46.524303][ T459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.534375][ T459] Call Trace: [ 46.537678][ T459] dump_stack_lvl+0x1e2/0x24b [ 46.542538][ T459] ? panic+0x7d7/0x7d7 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 46.546675][ T459] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.552111][ T459] ? find_next_bit+0xd6/0x120 [ 46.557050][ T459] ? cpumask_next+0x11/0x30 [ 46.561598][ T459] dump_stack+0x15/0x17 [ 46.565733][ T459] should_fail+0x3c0/0x510 [ 46.570168][ T459] ? percpu_ref_init+0xd0/0x330 [ 46.575003][ T459] __should_failslab+0x9f/0xe0 [ 46.579755][ T459] should_failslab+0x9/0x20 [ 46.584322][ T459] kmem_cache_alloc_trace+0x3a/0x330 [ 46.589629][ T459] percpu_ref_init+0xd0/0x330 [ 46.594380][ T459] ? cgroup_setup_root+0xea0/0xea0 [ 46.599543][ T459] cgroup_apply_control_enable+0x3a2/0x12f0 [ 46.605650][ T459] cgroup_apply_control+0x93/0x710 [ 46.610745][ T459] ? css_next_child+0x160/0x160 [ 46.615573][ T459] ? stack_trace_save+0x12d/0x1f0 [ 46.620587][ T459] ? io_schedule+0x120/0x120 [ 46.625279][ T459] ? kernfs_fop_write_iter+0x15e/0x410 [ 46.630726][ T459] ? __kasan_check_write+0x14/0x20 [ 46.635937][ T459] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 46.641209][ T459] cgroup_subtree_control_write+0xd19/0x1310 [ 46.647176][ T459] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.653152][ T459] ? __kasan_check_write+0x14/0x20 [ 46.658358][ T459] ? _copy_from_iter+0x3fb/0xd60 [ 46.663276][ T459] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.669298][ T459] cgroup_file_write+0x28e/0x590 [ 46.674658][ T459] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.679930][ T459] ? mutex_lock+0xa6/0x110 [ 46.684612][ T459] ? mutex_trylock+0xb0/0xb0 [ 46.689188][ T459] ? __kasan_check_write+0x14/0x20 [ 46.694303][ T459] kernfs_fop_write_iter+0x2d0/0x410 [ 46.699797][ T459] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.704895][ T459] vfs_write+0xc1c/0xf40 [ 46.709122][ T459] ? slab_free_freelist_hook+0xcc/0x1a0 [ 46.714683][ T459] ? kernel_write+0x3c0/0x3c0 [ 46.719568][ T459] ? mutex_trylock+0xb0/0xb0 [ 46.724155][ T459] ? __fdget_pos+0x26d/0x310 [ 46.728720][ T459] ? ksys_write+0x77/0x2c0 [ 46.733108][ T459] ksys_write+0x198/0x2c0 [ 46.737424][ T459] ? __ia32_sys_read+0x90/0x90 [ 46.742340][ T459] ? debug_smp_processor_id+0x17/0x20 [ 46.747785][ T459] __x64_sys_write+0x7b/0x90 [ 46.752461][ T459] do_syscall_64+0x34/0x70 [ 46.757063][ T459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.762932][ T459] RIP: 0033:0x7f3803699249 [ 46.767645][ T459] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.787459][ T459] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.796120][ T459] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 46.804082][ T459] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 46.812147][ T459] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 46.820927][ T459] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.828978][ T459] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 46.859673][ T467] FAULT_INJECTION: forcing a failure. [ 46.859673][ T467] name failslab, interval 1, probability 0, space 0, times 0 [ 46.872940][ T467] CPU: 0 PID: 467 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 46.884639][ T467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.894683][ T467] Call Trace: [ 46.897953][ T467] dump_stack_lvl+0x1e2/0x24b [ 46.902606][ T467] ? panic+0x7d7/0x7d7 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 46.906650][ T467] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.912113][ T467] ? find_next_bit+0xd6/0x120 [ 46.916939][ T467] ? cpumask_next+0x11/0x30 [ 46.921453][ T467] dump_stack+0x15/0x17 [ 46.925589][ T467] should_fail+0x3c0/0x510 [ 46.929986][ T467] ? percpu_ref_init+0xd0/0x330 [ 46.934818][ T467] __should_failslab+0x9f/0xe0 [ 46.939567][ T467] should_failslab+0x9/0x20 [ 46.944064][ T467] kmem_cache_alloc_trace+0x3a/0x330 [ 46.949381][ T467] percpu_ref_init+0xd0/0x330 [ 46.954053][ T467] ? cgroup_setup_root+0xea0/0xea0 [ 46.959153][ T467] cgroup_apply_control_enable+0x3a2/0x12f0 [ 46.965035][ T467] cgroup_apply_control+0x93/0x710 [ 46.970222][ T467] ? css_next_child+0x160/0x160 [ 46.975571][ T467] ? stack_trace_save+0x12d/0x1f0 [ 46.980670][ T467] ? io_schedule+0x120/0x120 [ 46.985237][ T467] ? kernfs_fop_write_iter+0x15e/0x410 [ 46.990768][ T467] ? __kasan_check_write+0x14/0x20 [ 46.995950][ T467] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 47.001212][ T467] cgroup_subtree_control_write+0xd19/0x1310 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 47.007195][ T467] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.013155][ T467] ? __kasan_check_write+0x14/0x20 [ 47.018245][ T467] ? _copy_from_iter+0x3fb/0xd60 [ 47.023175][ T467] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.029242][ T467] cgroup_file_write+0x28e/0x590 [ 47.034601][ T467] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.039865][ T467] ? mutex_lock+0xa6/0x110 [ 47.044260][ T467] ? mutex_trylock+0xb0/0xb0 [ 47.048932][ T467] ? __kasan_check_write+0x14/0x20 [ 47.054030][ T467] kernfs_fop_write_iter+0x2d0/0x410 [ 47.059305][ T467] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.064401][ T467] vfs_write+0xc1c/0xf40 [ 47.068622][ T467] ? slab_free_freelist_hook+0xcc/0x1a0 [ 47.074147][ T467] ? kernel_write+0x3c0/0x3c0 [ 47.078938][ T467] ? mutex_trylock+0xb0/0xb0 [ 47.083526][ T467] ? __fdget_pos+0x26d/0x310 [ 47.088095][ T467] ? ksys_write+0x77/0x2c0 [ 47.092542][ T467] ksys_write+0x198/0x2c0 [ 47.096849][ T467] ? __kasan_check_write+0x14/0x20 [ 47.102025][ T467] ? __ia32_sys_read+0x90/0x90 [ 47.106803][ T467] ? debug_smp_processor_id+0x17/0x20 [ 47.112153][ T467] __x64_sys_write+0x7b/0x90 [ 47.116731][ T467] do_syscall_64+0x34/0x70 [ 47.121148][ T467] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.127108][ T467] RIP: 0033:0x7f3803699249 [ 47.131501][ T467] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.151085][ T467] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.159480][ T467] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 47.167474][ T467] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 47.175430][ T467] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 47.183554][ T467] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.191559][ T467] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 47.256718][ T469] FAULT_INJECTION: forcing a failure. [ 47.256718][ T469] name failslab, interval 1, probability 0, space 0, times 0 [ 47.269376][ T469] CPU: 0 PID: 469 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 47.281100][ T469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.291265][ T469] Call Trace: [ 47.294542][ T469] dump_stack_lvl+0x1e2/0x24b [ 47.299538][ T469] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.304977][ T469] dump_stack+0x15/0x17 [ 47.309221][ T469] should_fail+0x3c0/0x510 [ 47.313636][ T469] ? pids_css_alloc+0x4e/0x120 [ 47.318388][ T469] __should_failslab+0x9f/0xe0 [ 47.323136][ T469] should_failslab+0x9/0x20 [ 47.327716][ T469] kmem_cache_alloc_trace+0x3a/0x330 [ 47.333087][ T469] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 47.338284][ T469] pids_css_alloc+0x4e/0x120 [ 47.342874][ T469] cgroup_apply_control_enable+0x350/0x12f0 [ 47.348767][ T469] cgroup_apply_control+0x93/0x710 [ 47.353865][ T469] ? css_next_child+0x160/0x160 [ 47.358707][ T469] ? stack_trace_save+0x12d/0x1f0 [ 47.363710][ T469] ? io_schedule+0x120/0x120 [ 47.368291][ T469] ? kernfs_fop_write_iter+0x15e/0x410 [ 47.373740][ T469] ? __kasan_check_write+0x14/0x20 [ 47.378863][ T469] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 47.384223][ T469] cgroup_subtree_control_write+0xd19/0x1310 [ 47.390693][ T469] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.396684][ T469] ? __kasan_check_write+0x14/0x20 [ 47.401785][ T469] ? _copy_from_iter+0x3fb/0xd60 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 47.406713][ T469] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.412884][ T469] cgroup_file_write+0x28e/0x590 [ 47.417801][ T469] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.422897][ T469] ? mutex_lock+0xa6/0x110 [ 47.427310][ T469] ? mutex_trylock+0xb0/0xb0 [ 47.432163][ T469] ? __kasan_check_write+0x14/0x20 [ 47.437255][ T469] kernfs_fop_write_iter+0x2d0/0x410 [ 47.442570][ T469] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.447664][ T469] vfs_write+0xc1c/0xf40 [ 47.451973][ T469] ? slab_free_freelist_hook+0xcc/0x1a0 [ 47.457505][ T469] ? kernel_write+0x3c0/0x3c0 [ 47.462309][ T469] ? mutex_trylock+0xb0/0xb0 [ 47.466878][ T469] ? __fdget_pos+0x26d/0x310 [ 47.471450][ T469] ? ksys_write+0x77/0x2c0 [ 47.475848][ T469] ksys_write+0x198/0x2c0 [ 47.480354][ T469] ? __ia32_sys_read+0x90/0x90 [ 47.485096][ T469] ? debug_smp_processor_id+0x17/0x20 [ 47.490473][ T469] __x64_sys_write+0x7b/0x90 [ 47.495077][ T469] do_syscall_64+0x34/0x70 [ 47.499524][ T469] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.505580][ T469] RIP: 0033:0x7f3803699249 [ 47.510261][ T469] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.530434][ T469] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.539102][ T469] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 47.547053][ T469] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 47.555253][ T469] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 47.563215][ T469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.571467][ T469] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 47.581008][ T23] audit: type=1400 audit(1649448717.910:154): avc: denied { remove_name } for pid=143 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 47.603931][ T23] audit: type=1400 audit(1649448717.910:155): avc: denied { rename } for pid=143 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 47.627359][ T418] ------------[ cut here ]------------ [ 47.632895][ T418] WARNING: CPU: 1 PID: 418 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 47.634159][ T465] FAULT_INJECTION: forcing a failure. [ 47.634159][ T465] name failslab, interval 1, probability 0, space 0, times 0 [ 47.641913][ T418] Modules linked in: [ 47.654554][ T465] CPU: 0 PID: 465 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 47.658350][ T418] CPU: 1 PID: 418 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 47.669943][ T465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.669949][ T465] Call Trace: [ 47.669967][ T465] dump_stack_lvl+0x1e2/0x24b [ 47.669977][ T465] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.669986][ T465] ? selinux_kernfs_init_security+0x1a8/0x760 [ 47.670005][ T465] dump_stack+0x15/0x17 [ 47.681989][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.692189][ T465] should_fail+0x3c0/0x510 [ 47.692200][ T465] ? __kernfs_new_node+0x99/0x6e0 [ 47.692210][ T465] __should_failslab+0x9f/0xe0 [ 47.692230][ T465] should_failslab+0x9/0x20 [ 47.695524][ T418] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 47.700511][ T465] __kmalloc_track_caller+0x5f/0x350 [ 47.700522][ T465] kstrdup_const+0x55/0x90 [ 47.700537][ T465] __kernfs_new_node+0x99/0x6e0 [ 47.705976][ T418] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 47.712017][ T465] ? is_module_text_address+0xe1/0x140 [ 47.712026][ T465] ? kernfs_new_node+0x170/0x170 [ 47.712042][ T465] ? ptr_to_hashval+0x60/0x60 [ 47.716258][ T418] RSP: 0018:ffffc90000be7ca0 EFLAGS: 00010293 [ 47.726319][ T465] ? arch_stack_walk+0xf8/0x140 [ 47.726332][ T465] ? snprintf+0xd6/0x120 [ 47.726342][ T465] kernfs_new_node+0x97/0x170 [ 47.726352][ T465] __kernfs_create_file+0x4a/0x270 [ 47.726371][ T465] cgroup_addrm_files+0xab8/0xfe0 [ 47.730782][ T418] RAX: ffffffff81b68a8a RBX: 00000000ffffffff RCX: ffff8881067f3b40 [ 47.735771][ T465] ? ____kasan_kmalloc+0xdc/0x110 [ 47.740543][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 47.744987][ T465] ? __kasan_kmalloc+0x9/0x10 [ 47.750687][ T418] RBP: ffffc90000be7d70 R08: ffffffff81b68778 R09: 0000000000000003 [ 47.756107][ T465] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 47.760586][ T418] R10: fffff5200017cf85 R11: 1ffff9200017cf84 R12: dffffc0000000000 [ 47.765398][ T465] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 47.785164][ T418] R13: ffff88810ea26c40 R14: ffffc90000be7d00 R15: 1ffff9200017cf9c [ 47.790574][ T465] ? delete_node+0x759/0x7b0 [ 47.790585][ T465] ? __kasan_check_read+0x11/0x20 [ 47.790592][ T465] ? delete_node+0x759/0x7b0 [ 47.790599][ T465] ? __kasan_check_write+0x14/0x20 [ 47.790609][ T465] ? idr_replace+0x1c4/0x230 [ 47.790624][ T465] ? idr_get_next+0x4b0/0x4b0 [ 47.795536][ T418] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 47.800251][ T465] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 47.800260][ T465] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 47.800270][ T465] css_populate_dir+0x137/0x370 [ 47.800280][ T465] cgroup_apply_control_enable+0x8b9/0x12f0 [ 47.800296][ T465] cgroup_apply_control+0x93/0x710 [ 47.806332][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.811144][ T465] ? css_next_child+0x160/0x160 [ 47.811152][ T465] ? io_schedule+0x120/0x120 [ 47.811168][ T465] ? kernfs_fop_write_iter+0x15e/0x410 [ 47.815395][ T418] CR2: 0000555555eaf738 CR3: 000000010b4ae000 CR4: 00000000003506a0 [ 47.820037][ T465] ? __kasan_check_write+0x14/0x20 [ 47.820047][ T465] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 47.820062][ T465] cgroup_subtree_control_write+0xd19/0x1310 [ 47.825146][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.830135][ T465] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.830144][ T465] ? __kasan_check_write+0x14/0x20 [ 47.830162][ T465] ? _copy_from_iter+0x3fb/0xd60 [ 47.838215][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.838229][ T418] Call Trace: [ 47.843238][ T465] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.843246][ T465] cgroup_file_write+0x28e/0x590 [ 47.843254][ T465] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.843264][ T465] ? mutex_lock+0xa6/0x110 [ 47.843271][ T465] ? mutex_trylock+0xb0/0xb0 [ 47.843289][ T465] ? __kasan_check_write+0x14/0x20 [ 47.851358][ T418] ? lockref_get_or_lock+0x340/0x340 [ 47.855975][ T465] kernfs_fop_write_iter+0x2d0/0x410 [ 47.863951][ T418] ? umount_tree+0xf50/0xf50 [ 47.869464][ T465] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.869473][ T465] vfs_write+0xc1c/0xf40 [ 47.869489][ T465] ? kernel_write+0x3c0/0x3c0 [ 47.877432][ T418] ? vfs_submount+0xb0/0xb0 [ 47.883552][ T465] ? mutex_trylock+0xb0/0xb0 [ 47.883562][ T465] ? __fdget_pos+0x26d/0x310 [ 47.883576][ T465] ? ksys_write+0x77/0x2c0 [ 47.891970][ T418] ? dput+0x2b6/0x320 [ 47.896637][ T465] ksys_write+0x198/0x2c0 [ 47.901730][ T418] path_umount+0x1fe/0xfb0 [ 47.906276][ T465] ? __ia32_sys_read+0x90/0x90 [ 47.911455][ T418] ? namespace_unlock+0x4f0/0x4f0 [ 47.916008][ T465] ? debug_smp_processor_id+0x17/0x20 [ 47.920864][ T418] ? user_path_at_empty+0x40/0x50 [ 47.929728][ T465] __x64_sys_write+0x7b/0x90 [ 47.929737][ T465] do_syscall_64+0x34/0x70 [ 47.929753][ T465] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.934746][ T418] __x64_sys_umount+0x122/0x170 [ 47.939905][ T465] RIP: 0033:0x7f3803699249 [ 47.939916][ T465] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.939928][ T465] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 [ 47.944749][ T418] ? path_umount+0xfb0/0xfb0 [ 47.950600][ T465] ORIG_RAX: 0000000000000001 [ 47.950608][ T465] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 47.950620][ T465] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 47.955704][ T418] ? debug_smp_processor_id+0x17/0x20 [ 47.962421][ T465] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 47.962427][ T465] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.962433][ T465] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 47.969516][ T465] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 47.972154][ T418] do_syscall_64+0x34/0x70 [ 48.265322][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.271302][ T418] RIP: 0033:0x7f380369a657 [ 48.275698][ T418] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 48.295402][ T418] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 48.303812][ T418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 48.311781][ T418] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 48.319840][ T418] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 48.327792][ T418] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 48.335853][ T418] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 48.344095][ T418] ---[ end trace 28f614c52c1e3011 ]--- [ 48.349634][ T418] ------------[ cut here ]------------ [ 48.355089][ T418] WARNING: CPU: 1 PID: 418 at fs/namespace.c:1109 cleanup_mnt+0x4c5/0x510 [ 48.363586][ T418] Modules linked in: [ 48.367497][ T418] CPU: 1 PID: 418 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 48.367546][ T415] ------------[ cut here ]------------ [ 48.379256][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.379271][ T418] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 48.379287][ T418] Code: 11 a1 ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ae 10 b5 ff 48 8b 7d d0 e8 c5 07 05 00 e9 21 fd ff ff e8 9b 10 b5 ff <0f> 0b e9 e5 fc ff ff 48 c7 c1 18 c8 5e 86 80 e1 07 80 c1 03 38 c1 [ 48.384732][ T415] WARNING: CPU: 0 PID: 415 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 48.394773][ T418] RSP: 0018:ffffc90000be7e30 EFLAGS: 00010293 [ 48.399944][ T415] Modules linked in: [ 48.420050][ T418] [ 48.428533][ T415] CPU: 0 PID: 415 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 48.428539][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.428559][ T415] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 48.428578][ T415] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 48.434736][ T418] RAX: ffffffff81b7a465 RBX: ffffe8ffffd21d34 RCX: ffff8881067f3b40 [ 48.438512][ T415] RSP: 0018:ffffc90000bc7ba0 EFLAGS: 00010293 [ 48.438525][ T415] RAX: ffffffff81b68a8a RBX: 00000000fffffffe RCX: ffff88810b4813c0 [ 48.438531][ T415] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 48.438543][ T415] RBP: ffffc90000bc7c70 R08: ffffffff81b68778 R09: 0000000000000003 [ 48.440898][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 48.452552][ T415] R10: fffff52000178f65 R11: 1ffff92000178f64 R12: dffffc0000000000 [ 48.452560][ T415] R13: ffff88810ea26380 R14: ffffc90000bc7c00 R15: 1ffff92000178f7c [ 48.452568][ T415] FS: 0000555555ea5400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 48.452575][ T415] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.452580][ T415] CR2: 0000555555eaf738 CR3: 000000011e079000 CR4: 00000000003506b0 [ 48.452593][ T415] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.462707][ T418] RBP: ffffc90000be7e80 R08: ffffffff81b7a143 R09: 0000000000000003 [ 48.468245][ T415] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.468249][ T415] Call Trace: [ 48.468269][ T415] ? io_schedule+0x120/0x120 [ 48.468288][ T415] ? vfs_submount+0xb0/0xb0 [ 48.488150][ T418] R10: fffff5200017cfc5 R11: 1ffff9200017cfc4 R12: ffff88810ea26ca8 [ 48.496105][ T415] ? shrink_dentry_list+0x4ec/0x500 [ 48.496132][ T415] ? __kasan_check_write+0x14/0x20 [ 48.502241][ T418] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 48.510151][ T415] namespace_unlock+0x448/0x4f0 [ 48.510161][ T415] ? umount_tree+0xf50/0xf50 [ 48.510168][ T415] ? __detach_mounts+0x670/0x670 [ 48.510177][ T415] ? selinux_umount+0xf0/0x130 [ 48.510186][ T415] ? security_sb_umount+0x9d/0xb0 [ 48.510201][ T415] path_umount+0xf03/0xfb0 [ 48.521549][ T418] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 48.526268][ T415] ? namespace_unlock+0x4f0/0x4f0 [ 48.534360][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.542315][ T415] ? user_path_at_empty+0x40/0x50 [ 48.550713][ T418] CR2: 0000555555eaf738 CR3: 000000010b4ae000 CR4: 00000000003506a0 [ 48.559379][ T415] __x64_sys_umount+0x122/0x170 [ 48.559396][ T415] ? path_umount+0xfb0/0xfb0 [ 48.566190][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.573940][ T415] ? debug_smp_processor_id+0x17/0x20 [ 48.573949][ T415] do_syscall_64+0x34/0x70 [ 48.573959][ T415] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.573968][ T415] RIP: 0033:0x7f380369a657 [ 48.573984][ T415] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 48.582435][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.589958][ T415] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 48.589972][ T415] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 48.589987][ T415] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 48.598371][ T418] Call Trace: [ 48.601321][ T415] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 48.601327][ T415] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 48.601332][ T415] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 48.601340][ T415] ---[ end trace 28f614c52c1e3012 ]--- [ 48.601869][ T462] FAULT_INJECTION: forcing a failure. [ 48.601869][ T462] name failslab, interval 1, probability 0, space 0, times 0 [ 48.606402][ T418] __cleanup_mnt+0x19/0x20 [ 48.610580][ T462] CPU: 0 PID: 462 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 48.618806][ T418] task_work_run+0x147/0x1b0 [ 48.623766][ T462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.623770][ T462] Call Trace: [ 48.623783][ T462] dump_stack_lvl+0x1e2/0x24b [ 48.623792][ T462] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.623804][ T462] ? selinux_kernfs_init_security+0x1a8/0x760 [ 48.623813][ T462] dump_stack+0x15/0x17 [ 48.623829][ T462] should_fail+0x3c0/0x510 [ 48.629490][ T418] exit_to_user_mode_loop+0xc8/0xe0 [ 48.636862][ T462] ? __kernfs_new_node+0x99/0x6e0 [ 48.636873][ T462] __should_failslab+0x9f/0xe0 [ 48.636892][ T462] should_failslab+0x9/0x20 [ 48.642074][ T418] syscall_exit_to_user_mode+0x77/0xa0 [ 48.646278][ T462] __kmalloc_track_caller+0x5f/0x350 [ 48.646289][ T462] kstrdup_const+0x55/0x90 [ 48.646305][ T462] __kernfs_new_node+0x99/0x6e0 [ 48.651604][ T418] do_syscall_64+0x40/0x70 [ 48.656030][ T462] ? is_module_text_address+0xe1/0x140 [ 48.656040][ T462] ? kernfs_new_node+0x170/0x170 [ 48.656059][ T462] ? ptr_to_hashval+0x60/0x60 [ 48.661359][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.665436][ T462] ? snprintf+0xd6/0x120 [ 48.665447][ T462] ? __kasan_check_write+0x14/0x20 [ 48.665463][ T462] ? mutex_unlock+0x1d/0x40 [ 48.674828][ T418] RIP: 0033:0x7f380369a657 [ 48.679364][ T462] kernfs_new_node+0x97/0x170 [ 48.679374][ T462] __kernfs_create_file+0x4a/0x270 [ 48.679384][ T462] cgroup_addrm_files+0xab8/0xfe0 [ 48.679395][ T462] ? ____kasan_kmalloc+0xdc/0x110 [ 48.679410][ T462] ? __kasan_kmalloc+0x9/0x10 [ 48.686357][ T418] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 48.691069][ T462] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 48.691080][ T462] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 48.691089][ T462] ? delete_node+0x759/0x7b0 [ 48.691099][ T462] ? __kasan_check_read+0x11/0x20 [ 48.691111][ T462] ? idr_replace+0x1c4/0x230 [ 48.691119][ T462] ? idr_get_next+0x4b0/0x4b0 [ 48.691139][ T462] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 48.699555][ T418] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 [ 48.703916][ T462] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 48.703928][ T462] css_populate_dir+0x137/0x370 [ 48.703944][ T462] cgroup_apply_control_enable+0x8b9/0x12f0 [ 48.708574][ T418] ORIG_RAX: 00000000000000a6 [ 48.716470][ T462] cgroup_apply_control+0x93/0x710 [ 48.716478][ T462] ? css_next_child+0x160/0x160 [ 48.716489][ T462] ? release_task_stack+0x529/0x660 [ 48.716499][ T462] ? io_schedule+0x120/0x120 [ 48.716510][ T462] ? kernfs_fop_write_iter+0x15e/0x410 [ 48.716529][ T462] ? __kasan_check_write+0x14/0x20 [ 48.722489][ T418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f380369a657 [ 48.726261][ T462] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 48.726271][ T462] cgroup_subtree_control_write+0xd19/0x1310 [ 48.726287][ T462] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.732898][ T418] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 48.736779][ T462] ? __kasan_check_write+0x14/0x20 [ 48.736792][ T462] ? _copy_from_iter+0x3fb/0xd60 [ 48.736811][ T462] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.756852][ T418] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 48.764375][ T462] cgroup_file_write+0x28e/0x590 [ 48.764385][ T462] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.764396][ T462] ? mutex_lock+0xa6/0x110 [ 48.764403][ T462] ? mutex_trylock+0xb0/0xb0 [ 48.764414][ T462] ? __kasan_check_write+0x14/0x20 [ 48.764432][ T462] kernfs_fop_write_iter+0x2d0/0x410 [ 48.773334][ T418] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 48.780772][ T462] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.780783][ T462] vfs_write+0xc1c/0xf40 [ 48.780792][ T462] ? kernel_write+0x3c0/0x3c0 [ 48.780803][ T462] ? mutex_trylock+0xb0/0xb0 [ 48.780821][ T462] ? __fdget_pos+0x26d/0x310 [ 48.780829][ T462] ? ksys_write+0x77/0x2c0 [ 48.780845][ T462] ksys_write+0x198/0x2c0 [ 48.789278][ T418] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 48.792235][ T462] ? __ia32_sys_read+0x90/0x90 [ 48.792249][ T462] ? debug_smp_processor_id+0x17/0x20 [ 48.792265][ T462] __x64_sys_write+0x7b/0x90 [ 48.800670][ T418] ---[ end trace 28f614c52c1e3013 ]--- [ 48.808378][ T462] do_syscall_64+0x34/0x70 [ 48.808390][ T462] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.808400][ T462] RIP: 0033:0x7f3803699249 [ 48.808422][ T462] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 48.826355][ T415] ------------[ cut here ]------------ [ 48.835933][ T462] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 48.835948][ T462] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 48.835955][ T462] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 48.835961][ T462] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 48.835966][ T462] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.835972][ T462] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 49.259259][ T462] cgroup: cgroup_addrm_files: failed to add events, err=-12 [ 49.261247][ T415] WARNING: CPU: 1 PID: 415 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 49.382059][ T415] Modules linked in: [ 49.386138][ T415] CPU: 1 PID: 415 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 49.397777][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.407872][ T415] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 49.413983][ T415] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 49.433806][ T415] RSP: 0018:ffffc90000bc7ca0 EFLAGS: 00010293 [ 49.439916][ T415] RAX: ffffffff81b68a8a RBX: 00000000fffffffd RCX: ffff88810b4813c0 [ 49.447887][ T415] RDX: 0000000000000000 RSI: 00000000fffffffd RDI: 0000000000000000 [ 49.455886][ T415] RBP: ffffc90000bc7d70 R08: ffffffff81b68778 R09: 0000000000000003 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 49.464045][ T415] R10: fffff52000178f85 R11: 1ffff92000178f84 R12: dffffc0000000000 [ 49.472110][ T415] R13: ffff88810ea26380 R14: ffffc90000bc7d00 R15: 1ffff92000178f9c [ 49.480602][ T415] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 49.489740][ T415] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.496362][ T415] CR2: 00007f380363ccc0 CR3: 000000011e079000 CR4: 00000000003506a0 [ 49.504376][ T415] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.513415][ T415] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.524392][ T415] Call Trace: [ 49.528486][ T415] ? lockref_get_or_lock+0x340/0x340 [ 49.533789][ T415] ? umount_tree+0xf50/0xf50 [ 49.538361][ T415] ? vfs_submount+0xb0/0xb0 [ 49.542853][ T415] ? dput+0x2b6/0x320 [ 49.546810][ T415] path_umount+0x1fe/0xfb0 [ 49.551415][ T415] ? namespace_unlock+0x4f0/0x4f0 [ 49.556421][ T415] ? user_path_at_empty+0x40/0x50 [ 49.561431][ T415] __x64_sys_umount+0x122/0x170 [ 49.566347][ T415] ? path_umount+0xfb0/0xfb0 [ 49.570931][ T415] ? debug_smp_processor_id+0x17/0x20 [ 49.576284][ T415] do_syscall_64+0x34/0x70 [ 49.580784][ T415] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.586648][ T415] RIP: 0033:0x7f380369a657 [ 49.591078][ T415] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 49.610711][ T415] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 49.619178][ T415] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 49.627507][ T415] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 49.635611][ T415] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 49.643595][ T415] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 49.651564][ T415] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 49.659534][ T415] ---[ end trace 28f614c52c1e3014 ]--- [ 49.699946][ T484] FAULT_INJECTION: forcing a failure. [ 49.699946][ T484] name failslab, interval 1, probability 0, space 0, times 0 [ 49.712642][ T484] CPU: 1 PID: 484 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 49.724366][ T484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.734850][ T484] Call Trace: [ 49.738123][ T484] dump_stack_lvl+0x1e2/0x24b [ 49.743060][ T484] ? panic+0x7d7/0x7d7 [ 49.747114][ T484] ? bfq_pos_tree_add_move+0x43e/0x43e [ 49.752570][ T484] ? find_next_bit+0xd6/0x120 [ 49.757223][ T484] ? cpumask_next+0x11/0x30 [ 49.761700][ T484] dump_stack+0x15/0x17 [ 49.766011][ T484] should_fail+0x3c0/0x510 [ 49.770536][ T484] ? percpu_ref_init+0xd0/0x330 [ 49.776254][ T484] __should_failslab+0x9f/0xe0 [ 49.781457][ T484] should_failslab+0x9/0x20 [ 49.785953][ T484] kmem_cache_alloc_trace+0x3a/0x330 [ 49.791415][ T484] percpu_ref_init+0xd0/0x330 [ 49.796367][ T484] ? cgroup_setup_root+0xea0/0xea0 [ 49.801653][ T484] cgroup_apply_control_enable+0x3a2/0x12f0 [ 49.807799][ T484] cgroup_apply_control+0x93/0x710 [ 49.812986][ T484] ? css_next_child+0x160/0x160 [ 49.817822][ T484] ? stack_trace_save+0x12d/0x1f0 [ 49.822843][ T484] ? io_schedule+0x120/0x120 [ 49.827542][ T484] ? kernfs_fop_write_iter+0x15e/0x410 [ 49.832984][ T484] ? __kasan_check_write+0x14/0x20 [ 49.838204][ T484] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 49.843466][ T484] cgroup_subtree_control_write+0xd19/0x1310 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 49.849512][ T484] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.855560][ T484] ? __kasan_check_write+0x14/0x20 [ 49.860673][ T484] ? _copy_from_iter+0x3fb/0xd60 [ 49.865675][ T484] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.871721][ T484] cgroup_file_write+0x28e/0x590 [ 49.876811][ T484] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.881901][ T484] ? mutex_lock+0xa6/0x110 [ 49.886329][ T484] ? mutex_trylock+0xb0/0xb0 [ 49.890986][ T484] ? __kasan_check_write+0x14/0x20 [ 49.896072][ T484] kernfs_fop_write_iter+0x2d0/0x410 [ 49.901329][ T484] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.906412][ T484] vfs_write+0xc1c/0xf40 [ 49.910633][ T484] ? slab_free_freelist_hook+0xcc/0x1a0 [ 49.916152][ T484] ? kernel_write+0x3c0/0x3c0 [ 49.920807][ T484] ? mutex_trylock+0xb0/0xb0 [ 49.925381][ T484] ? __fdget_pos+0x26d/0x310 [ 49.929943][ T484] ? ksys_write+0x77/0x2c0 [ 49.934348][ T484] ksys_write+0x198/0x2c0 [ 49.938649][ T484] ? __ia32_sys_read+0x90/0x90 [ 49.943396][ T484] ? debug_smp_processor_id+0x17/0x20 [ 49.948747][ T484] __x64_sys_write+0x7b/0x90 [ 49.953318][ T484] do_syscall_64+0x34/0x70 [ 49.957728][ T484] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.963645][ T484] RIP: 0033:0x7f3803699249 [ 49.968074][ T484] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 49.987752][ T484] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 49.996335][ T484] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 50.004380][ T484] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.012326][ T484] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 50.020272][ T484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 50.028255][ T484] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 50.059791][ T457] FAULT_INJECTION: forcing a failure. [ 50.059791][ T457] name failslab, interval 1, probability 0, space 0, times 0 [ 50.072503][ T457] CPU: 0 PID: 457 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 50.084243][ T457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.094283][ T457] Call Trace: [ 50.097561][ T457] dump_stack_lvl+0x1e2/0x24b [ 50.102368][ T457] ? panic+0x7d7/0x7d7 [ 50.106428][ T457] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.111871][ T457] ? find_next_bit+0xd6/0x120 [ 50.116532][ T457] ? cpumask_next+0x11/0x30 [ 50.121183][ T457] dump_stack+0x15/0x17 [ 50.125324][ T457] should_fail+0x3c0/0x510 [ 50.129726][ T457] ? percpu_ref_init+0xd0/0x330 [ 50.134575][ T457] __should_failslab+0x9f/0xe0 [ 50.139329][ T457] should_failslab+0x9/0x20 [ 50.143808][ T457] kmem_cache_alloc_trace+0x3a/0x330 [ 50.149258][ T457] percpu_ref_init+0xd0/0x330 [ 50.153909][ T457] ? cgroup_setup_root+0xea0/0xea0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 50.159051][ T457] cgroup_apply_control_enable+0x3a2/0x12f0 [ 50.164930][ T457] cgroup_apply_control+0x93/0x710 [ 50.170033][ T457] ? css_next_child+0x160/0x160 [ 50.174864][ T457] ? io_schedule+0x120/0x120 [ 50.179517][ T457] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.184957][ T457] ? __kasan_check_write+0x14/0x20 [ 50.190048][ T457] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.195307][ T457] cgroup_subtree_control_write+0xd19/0x1310 [ 50.201618][ T457] ? cgroup_subtree_control_show+0x1d0/0x1d0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 50.207662][ T457] ? __kasan_check_write+0x14/0x20 [ 50.212749][ T457] ? _copy_from_iter+0x3fb/0xd60 [ 50.217750][ T457] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.223704][ T457] cgroup_file_write+0x28e/0x590 [ 50.228623][ T457] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.233716][ T457] ? mutex_lock+0xa6/0x110 [ 50.238106][ T457] ? mutex_trylock+0xb0/0xb0 [ 50.242669][ T457] ? __kasan_check_write+0x14/0x20 [ 50.247767][ T457] kernfs_fop_write_iter+0x2d0/0x410 [ 50.253029][ T457] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.258120][ T457] vfs_write+0xc1c/0xf40 [ 50.262341][ T457] ? kernel_write+0x3c0/0x3c0 [ 50.267088][ T457] ? mutex_trylock+0xb0/0xb0 [ 50.271659][ T457] ? __fdget_pos+0x26d/0x310 [ 50.276327][ T457] ? ksys_write+0x77/0x2c0 [ 50.280732][ T457] ksys_write+0x198/0x2c0 [ 50.285046][ T457] ? __ia32_sys_read+0x90/0x90 [ 50.289801][ T457] ? debug_smp_processor_id+0x17/0x20 [ 50.295149][ T457] __x64_sys_write+0x7b/0x90 [ 50.299723][ T457] do_syscall_64+0x34/0x70 [ 50.304118][ T457] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.309980][ T457] RIP: 0033:0x7f3803699249 [ 50.314543][ T457] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 50.334217][ T457] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.342962][ T457] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 50.351052][ T457] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.359092][ T457] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 50.367053][ T457] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 50.375031][ T457] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 50.409936][ T487] FAULT_INJECTION: forcing a failure. [ 50.409936][ T487] name failslab, interval 1, probability 0, space 0, times 0 [ 50.422717][ T487] CPU: 0 PID: 487 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 50.434407][ T487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.444436][ T487] Call Trace: [ 50.447707][ T487] dump_stack_lvl+0x1e2/0x24b [ 50.452355][ T487] ? panic+0x7d7/0x7d7 [ 50.456609][ T487] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.462075][ T487] ? find_next_bit+0xd6/0x120 [ 50.466746][ T487] ? cpumask_next+0x11/0x30 [ 50.471232][ T487] dump_stack+0x15/0x17 [ 50.475368][ T487] should_fail+0x3c0/0x510 [ 50.479852][ T487] ? percpu_ref_init+0xd0/0x330 [ 50.484781][ T487] __should_failslab+0x9f/0xe0 [ 50.489532][ T487] should_failslab+0x9/0x20 [ 50.494024][ T487] kmem_cache_alloc_trace+0x3a/0x330 [ 50.499299][ T487] percpu_ref_init+0xd0/0x330 [ 50.503964][ T487] ? cgroup_setup_root+0xea0/0xea0 [ 50.509412][ T487] cgroup_apply_control_enable+0x3a2/0x12f0 [ 50.515296][ T487] cgroup_apply_control+0x93/0x710 [ 50.520472][ T487] ? css_next_child+0x160/0x160 [ 50.525415][ T487] ? release_task_stack+0x4c2/0x660 [ 50.530621][ T487] ? io_schedule+0x120/0x120 [ 50.535214][ T487] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.540657][ T487] ? __kasan_check_write+0x14/0x20 [ 50.545749][ T487] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.551011][ T487] cgroup_subtree_control_write+0xd19/0x1310 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 50.556976][ T487] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.562956][ T487] ? __kasan_check_write+0x14/0x20 [ 50.568056][ T487] ? _copy_from_iter+0x3fb/0xd60 [ 50.573068][ T487] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.579260][ T487] cgroup_file_write+0x28e/0x590 [ 50.584233][ T487] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.589594][ T487] ? mutex_lock+0xa6/0x110 [ 50.593997][ T487] ? mutex_trylock+0xb0/0xb0 [ 50.598751][ T487] ? __kasan_check_write+0x14/0x20 [ 50.603844][ T487] kernfs_fop_write_iter+0x2d0/0x410 [ 50.609141][ T487] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.614419][ T487] vfs_write+0xc1c/0xf40 [ 50.618666][ T487] ? kernel_write+0x3c0/0x3c0 [ 50.623392][ T487] ? mutex_trylock+0xb0/0xb0 [ 50.628240][ T487] ? __fdget_pos+0x26d/0x310 [ 50.632847][ T487] ? ksys_write+0x77/0x2c0 [ 50.637297][ T487] ksys_write+0x198/0x2c0 [ 50.641736][ T487] ? __ia32_sys_read+0x90/0x90 [ 50.646847][ T487] ? debug_smp_processor_id+0x17/0x20 [ 50.652317][ T487] __x64_sys_write+0x7b/0x90 [ 50.656906][ T487] do_syscall_64+0x34/0x70 [ 50.661316][ T487] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.667202][ T487] RIP: 0033:0x7f3803699249 [ 50.671608][ T487] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 50.691320][ T487] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.699831][ T487] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 50.707988][ T487] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.716156][ T487] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 50.724376][ T487] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 50.732376][ T487] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 50.789930][ T475] FAULT_INJECTION: forcing a failure. [ 50.789930][ T475] name failslab, interval 1, probability 0, space 0, times 0 [ 50.803167][ T475] CPU: 0 PID: 475 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 50.814924][ T475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.825054][ T475] Call Trace: [ 50.828329][ T475] dump_stack_lvl+0x1e2/0x24b [ 50.833009][ T475] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.838478][ T475] dump_stack+0x15/0x17 [ 50.842638][ T475] should_fail+0x3c0/0x510 [ 50.847049][ T475] ? pids_css_alloc+0x4e/0x120 [ 50.851794][ T475] __should_failslab+0x9f/0xe0 [ 50.856562][ T475] should_failslab+0x9/0x20 [ 50.861061][ T475] kmem_cache_alloc_trace+0x3a/0x330 [ 50.866351][ T475] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 50.871653][ T475] pids_css_alloc+0x4e/0x120 [ 50.876404][ T475] cgroup_apply_control_enable+0x350/0x12f0 [ 50.882279][ T475] cgroup_apply_control+0x93/0x710 [ 50.887372][ T475] ? css_next_child+0x160/0x160 [ 50.892200][ T475] ? release_task_stack+0x529/0x660 [ 50.898849][ T475] ? io_schedule+0x120/0x120 [ 50.903429][ T475] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.908891][ T475] ? __kasan_check_write+0x14/0x20 [ 50.913995][ T475] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.919256][ T475] cgroup_subtree_control_write+0xd19/0x1310 [ 50.925209][ T475] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.931162][ T475] ? __kasan_check_write+0x14/0x20 [ 50.936247][ T475] ? _copy_from_iter+0x3fb/0xd60 [ 50.941210][ T475] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.947203][ T475] cgroup_file_write+0x28e/0x590 [ 50.952133][ T475] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.957232][ T475] ? mutex_lock+0xa6/0x110 [ 50.961647][ T475] ? mutex_trylock+0xb0/0xb0 [ 50.966213][ T475] ? __kasan_check_write+0x14/0x20 [ 50.971297][ T475] kernfs_fop_write_iter+0x2d0/0x410 [ 50.976729][ T475] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.981824][ T475] vfs_write+0xc1c/0xf40 [ 50.986049][ T475] ? kernel_write+0x3c0/0x3c0 [ 50.990698][ T475] ? mutex_trylock+0xb0/0xb0 [ 50.995265][ T475] ? __fdget_pos+0x26d/0x310 [ 50.999827][ T475] ? ksys_write+0x77/0x2c0 [ 51.004231][ T475] ksys_write+0x198/0x2c0 [ 51.008533][ T475] ? __ia32_sys_read+0x90/0x90 [ 51.013271][ T475] ? debug_smp_processor_id+0x17/0x20 [ 51.018612][ T475] __x64_sys_write+0x7b/0x90 [ 51.023176][ T475] do_syscall_64+0x34/0x70 [ 51.027564][ T475] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.033442][ T475] RIP: 0033:0x7f3803699249 [ 51.037968][ T475] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 51.057674][ T475] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.066102][ T475] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 51.074075][ T475] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 51.082058][ T475] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 51.090200][ T475] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.098174][ T475] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 51.129701][ T493] FAULT_INJECTION: forcing a failure. [ 51.129701][ T493] name failslab, interval 1, probability 0, space 0, times 0 [ 51.142488][ T493] CPU: 0 PID: 493 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 51.154110][ T493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.164158][ T493] Call Trace: [ 51.167457][ T493] dump_stack_lvl+0x1e2/0x24b [ 51.172211][ T493] ? bfq_pos_tree_add_move+0x43e/0x43e [ 51.177669][ T493] ? selinux_kernfs_init_security+0x1a8/0x760 [ 51.183958][ T493] dump_stack+0x15/0x17 [ 51.188096][ T493] should_fail+0x3c0/0x510 [ 51.192494][ T493] ? __kernfs_new_node+0x99/0x6e0 [ 51.197501][ T493] __should_failslab+0x9f/0xe0 [ 51.202256][ T493] should_failslab+0x9/0x20 [ 51.206922][ T493] __kmalloc_track_caller+0x5f/0x350 [ 51.212197][ T493] kstrdup_const+0x55/0x90 [ 51.216614][ T493] __kernfs_new_node+0x99/0x6e0 [ 51.221554][ T493] ? is_module_text_address+0xe1/0x140 [ 51.227016][ T493] ? kernfs_new_node+0x170/0x170 [ 51.231944][ T493] ? ptr_to_hashval+0x60/0x60 [ 51.236603][ T493] ? arch_stack_walk+0xf8/0x140 [ 51.241464][ T493] ? snprintf+0xd6/0x120 [ 51.245708][ T493] kernfs_new_node+0x97/0x170 [ 51.250383][ T493] __kernfs_create_file+0x4a/0x270 [ 51.255489][ T493] cgroup_addrm_files+0xab8/0xfe0 [ 51.260519][ T493] ? ____kasan_kmalloc+0xdc/0x110 [ 51.265540][ T493] ? __kasan_kmalloc+0x9/0x10 [ 51.270210][ T493] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 51.275862][ T493] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 51.282023][ T493] ? delete_node+0x759/0x7b0 [ 51.286597][ T493] ? __kasan_check_read+0x11/0x20 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 51.291605][ T493] ? delete_node+0x759/0x7b0 [ 51.296174][ T493] ? __kasan_check_write+0x14/0x20 [ 51.301268][ T493] ? idr_replace+0x1c4/0x230 [ 51.305860][ T493] ? idr_get_next+0x4b0/0x4b0 [ 51.310534][ T493] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 51.315549][ T493] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 51.320731][ T493] css_populate_dir+0x137/0x370 [ 51.325565][ T493] cgroup_apply_control_enable+0x8b9/0x12f0 [ 51.331638][ T493] cgroup_apply_control+0x93/0x710 [ 51.336766][ T493] ? css_next_child+0x160/0x160 [ 51.341691][ T493] ? stack_trace_save+0x12d/0x1f0 [ 51.346734][ T493] ? io_schedule+0x120/0x120 [ 51.351322][ T493] ? kernfs_fop_write_iter+0x15e/0x410 [ 51.356759][ T493] ? __kasan_check_write+0x14/0x20 [ 51.361876][ T493] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 51.367159][ T493] cgroup_subtree_control_write+0xd19/0x1310 [ 51.373128][ T493] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.379117][ T493] ? __kasan_check_write+0x14/0x20 [ 51.384216][ T493] ? _copy_from_iter+0x3fb/0xd60 [ 51.389134][ T493] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.395186][ T493] cgroup_file_write+0x28e/0x590 [ 51.400131][ T493] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.405366][ T493] ? mutex_lock+0xa6/0x110 [ 51.409777][ T493] ? mutex_trylock+0xb0/0xb0 [ 51.414372][ T493] ? __kasan_check_write+0x14/0x20 [ 51.419554][ T493] kernfs_fop_write_iter+0x2d0/0x410 [ 51.424826][ T493] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.429918][ T493] vfs_write+0xc1c/0xf40 [ 51.434151][ T493] ? slab_free_freelist_hook+0xcc/0x1a0 [ 51.439691][ T493] ? kernel_write+0x3c0/0x3c0 [ 51.444350][ T493] ? mutex_trylock+0xb0/0xb0 [ 51.448941][ T493] ? __fdget_pos+0x26d/0x310 [ 51.453509][ T493] ? ksys_write+0x77/0x2c0 [ 51.457905][ T493] ksys_write+0x198/0x2c0 [ 51.462218][ T493] ? __ia32_sys_read+0x90/0x90 [ 51.466962][ T493] ? debug_smp_processor_id+0x17/0x20 [ 51.472498][ T493] __x64_sys_write+0x7b/0x90 [ 51.477280][ T493] do_syscall_64+0x34/0x70 [ 51.481688][ T493] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.487563][ T493] RIP: 0033:0x7f3803699249 [ 51.492099][ T493] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 51.511849][ T493] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.520264][ T493] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 51.528252][ T493] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 51.536404][ T493] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 51.544528][ T493] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.552582][ T493] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 51.560854][ T493] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 51.600023][ T472] FAULT_INJECTION: forcing a failure. [ 51.600023][ T472] name failslab, interval 1, probability 0, space 0, times 0 [ 51.613485][ T472] CPU: 0 PID: 472 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 51.625239][ T472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.635311][ T472] Call Trace: [ 51.638586][ T472] dump_stack_lvl+0x1e2/0x24b [ 51.643239][ T472] ? panic+0x7d7/0x7d7 [ 51.647374][ T472] ? bfq_pos_tree_add_move+0x43e/0x43e [ 51.652810][ T472] ? find_next_bit+0xd6/0x120 [ 51.657465][ T472] ? cpumask_next+0x11/0x30 [ 51.661951][ T472] dump_stack+0x15/0x17 [ 51.666083][ T472] should_fail+0x3c0/0x510 [ 51.670477][ T472] ? percpu_ref_init+0xd0/0x330 [ 51.675323][ T472] __should_failslab+0x9f/0xe0 [ 51.680132][ T472] should_failslab+0x9/0x20 [ 51.684633][ T472] kmem_cache_alloc_trace+0x3a/0x330 [ 51.690246][ T472] percpu_ref_init+0xd0/0x330 [ 51.694905][ T472] ? cgroup_setup_root+0xea0/0xea0 [ 51.700020][ T472] cgroup_apply_control_enable+0x3a2/0x12f0 [ 51.705893][ T472] cgroup_apply_control+0x93/0x710 [ 51.711114][ T472] ? css_next_child+0x160/0x160 [ 51.716031][ T472] ? io_schedule+0x120/0x120 [ 51.720699][ T472] ? kernfs_fop_write_iter+0x15e/0x410 [ 51.726138][ T472] ? __kasan_check_write+0x14/0x20 [ 51.731357][ T472] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 51.736719][ T472] cgroup_subtree_control_write+0xd19/0x1310 [ 51.742707][ T472] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.749230][ T472] ? __kasan_check_write+0x14/0x20 [ 51.754336][ T472] ? _copy_from_iter+0x3fb/0xd60 [ 51.759256][ T472] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.765214][ T472] cgroup_file_write+0x28e/0x590 [ 51.770131][ T472] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.775221][ T472] ? mutex_lock+0xa6/0x110 [ 51.779610][ T472] ? mutex_trylock+0xb0/0xb0 [ 51.784178][ T472] ? __kasan_check_write+0x14/0x20 [ 51.789299][ T472] kernfs_fop_write_iter+0x2d0/0x410 [ 51.794585][ T472] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.799768][ T472] vfs_write+0xc1c/0xf40 [ 51.804077][ T472] ? kernel_write+0x3c0/0x3c0 [ 51.809906][ T472] ? mutex_trylock+0xb0/0xb0 [ 51.814608][ T472] ? __fdget_pos+0x26d/0x310 [ 51.819182][ T472] ? ksys_write+0x77/0x2c0 [ 51.823616][ T472] ksys_write+0x198/0x2c0 [ 51.828046][ T472] ? __ia32_sys_read+0x90/0x90 [ 51.832797][ T472] ? debug_smp_processor_id+0x17/0x20 [ 51.838153][ T472] __x64_sys_write+0x7b/0x90 [ 51.842720][ T472] do_syscall_64+0x34/0x70 [ 51.847149][ T472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.853223][ T472] RIP: 0033:0x7f3803699249 [ 51.857648][ T472] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 51.877603][ T472] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.886001][ T472] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 51.894078][ T472] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 51.902392][ T472] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 51.910346][ T472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.918384][ T472] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 51.959893][ T499] FAULT_INJECTION: forcing a failure. [ 51.959893][ T499] name failslab, interval 1, probability 0, space 0, times 0 [ 51.972761][ T499] CPU: 1 PID: 499 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 51.984475][ T499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.994776][ T499] Call Trace: [ 51.998061][ T499] dump_stack_lvl+0x1e2/0x24b [ 52.002865][ T499] ? bfq_pos_tree_add_move+0x43e/0x43e [ 52.008312][ T499] dump_stack+0x15/0x17 [ 52.012468][ T499] should_fail+0x3c0/0x510 [ 52.016906][ T499] ? pids_css_alloc+0x4e/0x120 [ 52.021661][ T499] __should_failslab+0x9f/0xe0 [ 52.026406][ T499] should_failslab+0x9/0x20 [ 52.030891][ T499] kmem_cache_alloc_trace+0x3a/0x330 [ 52.036178][ T499] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 52.041373][ T499] pids_css_alloc+0x4e/0x120 [ 52.045966][ T499] cgroup_apply_control_enable+0x350/0x12f0 [ 52.051845][ T499] cgroup_apply_control+0x93/0x710 [ 52.056948][ T499] ? css_next_child+0x160/0x160 [ 52.061891][ T499] ? release_task_stack+0x56a/0x660 [ 52.067350][ T499] ? io_schedule+0x120/0x120 [ 52.072181][ T499] ? kernfs_fop_write_iter+0x15e/0x410 [ 52.077622][ T499] ? __kasan_check_write+0x14/0x20 [ 52.082816][ T499] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 52.088091][ T499] cgroup_subtree_control_write+0xd19/0x1310 [ 52.094066][ T499] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.100112][ T499] ? __kasan_check_write+0x14/0x20 [ 52.105201][ T499] ? _copy_from_iter+0x3fb/0xd60 [ 52.110134][ T499] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.116104][ T499] cgroup_file_write+0x28e/0x590 [ 52.121022][ T499] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.126111][ T499] ? mutex_lock+0xa6/0x110 [ 52.130505][ T499] ? mutex_trylock+0xb0/0xb0 [ 52.135101][ T499] ? __kasan_check_write+0x14/0x20 [ 52.140201][ T499] kernfs_fop_write_iter+0x2d0/0x410 [ 52.145463][ T499] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.150550][ T499] vfs_write+0xc1c/0xf40 [ 52.154815][ T499] ? kernel_write+0x3c0/0x3c0 [ 52.159478][ T499] ? mutex_trylock+0xb0/0xb0 [ 52.164061][ T499] ? __fdget_pos+0x26d/0x310 [ 52.168625][ T499] ? ksys_write+0x77/0x2c0 [ 52.173013][ T499] ksys_write+0x198/0x2c0 [ 52.177344][ T499] ? __ia32_sys_read+0x90/0x90 [ 52.182085][ T499] ? debug_smp_processor_id+0x17/0x20 [ 52.187433][ T499] __x64_sys_write+0x7b/0x90 [ 52.192170][ T499] do_syscall_64+0x34/0x70 [ 52.196578][ T499] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.202447][ T499] RIP: 0033:0x7f3803699249 [ 52.206855][ T499] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 52.226456][ T499] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 52.234849][ T499] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 52.242812][ T499] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 52.250762][ T499] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 52.258712][ T499] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 52.266728][ T499] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 52.309765][ T488] FAULT_INJECTION: forcing a failure. [ 52.309765][ T488] name failslab, interval 1, probability 0, space 0, times 0 [ 52.322502][ T488] CPU: 1 PID: 488 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 52.334120][ T488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.344168][ T488] Call Trace: [ 52.347463][ T488] dump_stack_lvl+0x1e2/0x24b [ 52.352133][ T488] ? bfq_pos_tree_add_move+0x43e/0x43e [ 52.357594][ T488] dump_stack+0x15/0x17 [ 52.361735][ T488] should_fail+0x3c0/0x510 [ 52.366137][ T488] ? pids_css_alloc+0x4e/0x120 [ 52.371133][ T488] __should_failslab+0x9f/0xe0 [ 52.375893][ T488] should_failslab+0x9/0x20 [ 52.380858][ T488] kmem_cache_alloc_trace+0x3a/0x330 [ 52.386433][ T488] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 52.391632][ T488] pids_css_alloc+0x4e/0x120 [ 52.396253][ T488] cgroup_apply_control_enable+0x350/0x12f0 [ 52.402484][ T488] cgroup_apply_control+0x93/0x710 [ 52.407598][ T488] ? css_next_child+0x160/0x160 [ 52.412536][ T488] ? io_schedule+0x120/0x120 [ 52.417114][ T488] ? kernfs_fop_write_iter+0x15e/0x410 [ 52.422556][ T488] ? __kasan_check_write+0x14/0x20 [ 52.427669][ T488] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 52.432958][ T488] cgroup_subtree_control_write+0xd19/0x1310 [ 52.438923][ T488] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.444883][ T488] ? __kasan_check_write+0x14/0x20 [ 52.449983][ T488] ? _copy_from_iter+0x3fb/0xd60 [ 52.454915][ T488] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.460876][ T488] cgroup_file_write+0x28e/0x590 [ 52.465794][ T488] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.471051][ T488] ? mutex_lock+0xa6/0x110 [ 52.475472][ T488] ? mutex_trylock+0xb0/0xb0 [ 52.480055][ T488] ? __kasan_check_write+0x14/0x20 [ 52.485149][ T488] kernfs_fop_write_iter+0x2d0/0x410 [ 52.490416][ T488] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.495781][ T488] vfs_write+0xc1c/0xf40 [ 52.500002][ T488] ? kernel_write+0x3c0/0x3c0 [ 52.504667][ T488] ? mutex_trylock+0xb0/0xb0 [ 52.509250][ T488] ? __fdget_pos+0x26d/0x310 [ 52.513838][ T488] ? ksys_write+0x77/0x2c0 [ 52.518235][ T488] ksys_write+0x198/0x2c0 [ 52.522544][ T488] ? __ia32_sys_read+0x90/0x90 [ 52.527362][ T488] ? debug_smp_processor_id+0x17/0x20 [ 52.532809][ T488] __x64_sys_write+0x7b/0x90 [ 52.537401][ T488] do_syscall_64+0x34/0x70 [ 52.541826][ T488] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.547889][ T488] RIP: 0033:0x7f3803699249 [ 52.552318][ T488] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 52.572639][ T488] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 52.581124][ T488] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 52.589096][ T488] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 52.597404][ T488] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 52.605579][ T488] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 52.613616][ T488] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 52.624515][ T415] ------------[ cut here ]------------ [ 52.630019][ T415] WARNING: CPU: 1 PID: 415 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 52.638936][ T415] Modules linked in: [ 52.642863][ T415] CPU: 1 PID: 415 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 52.654485][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.664579][ T415] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 52.670234][ T415] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 52.690034][ T415] RSP: 0018:ffffc90000bc7ba0 EFLAGS: 00010293 [ 52.696109][ T415] RAX: ffffffff81b68a8a RBX: 00000000ffffffff RCX: ffff88810b4813c0 [ 52.704110][ T415] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 52.712254][ T415] RBP: ffffc90000bc7c70 R08: ffffffff81b68778 R09: 0000000000000003 [ 52.720254][ T415] R10: fffff52000178f65 R11: 1ffff92000178f64 R12: dffffc0000000000 [ 52.728222][ T415] R13: ffff88810ea27500 R14: ffffc90000bc7c00 R15: 1ffff92000178f7c [ 52.736210][ T415] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 52.745139][ T415] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.751737][ T415] CR2: 0000555555eaf738 CR3: 000000011e079000 CR4: 00000000003506a0 [ 52.759708][ T415] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.767758][ T415] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.775766][ T415] Call Trace: [ 52.779142][ T415] ? io_schedule+0x120/0x120 [ 52.783768][ T415] ? vfs_submount+0xb0/0xb0 [ 52.788258][ T415] ? shrink_dentry_list+0x4ec/0x500 [ 52.793544][ T415] ? __kasan_check_write+0x14/0x20 [ 52.798640][ T415] namespace_unlock+0x448/0x4f0 [ 52.803495][ T415] ? umount_tree+0xf50/0xf50 [ 52.808061][ T415] ? __detach_mounts+0x670/0x670 [ 52.813019][ T415] ? selinux_umount+0xf0/0x130 [ 52.817763][ T415] ? security_sb_umount+0x9d/0xb0 [ 52.822792][ T415] path_umount+0xf03/0xfb0 [ 52.827230][ T415] ? namespace_unlock+0x4f0/0x4f0 [ 52.832281][ T415] ? user_path_at_empty+0x40/0x50 [ 52.837288][ T415] __x64_sys_umount+0x122/0x170 [ 52.842226][ T415] ? path_umount+0xfb0/0xfb0 [ 52.846803][ T415] ? debug_smp_processor_id+0x17/0x20 [ 52.852170][ T415] do_syscall_64+0x34/0x70 [ 52.856571][ T415] entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 52.862458][ T415] RIP: 0033:0x7f380369a657 [ 52.866857][ T415] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 52.886500][ T415] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 52.895208][ T415] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 52.903184][ T415] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 52.911236][ T415] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 52.919191][ T415] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 52.927177][ T415] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 52.935148][ T415] ---[ end trace 28f614c52c1e3015 ]--- [ 52.940669][ T415] ------------[ cut here ]------------ [ 52.946292][ T415] WARNING: CPU: 0 PID: 415 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 52.955442][ T415] Modules linked in: [ 52.959370][ T415] CPU: 0 PID: 415 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 52.970989][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.981154][ T415] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 52.986775][ T415] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 53.006647][ T415] RSP: 0018:ffffc90000bc7ca0 EFLAGS: 00010293 [ 53.012768][ T415] RAX: ffffffff81b68a8a RBX: 00000000fffffffe RCX: ffff88810b4813c0 [ 53.020749][ T415] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 53.028801][ T415] RBP: ffffc90000bc7d70 R08: ffffffff81b68778 R09: 0000000000000003 [ 53.036771][ T415] R10: fffff52000178f85 R11: 1ffff92000178f84 R12: dffffc0000000000 [ 53.044750][ T415] R13: ffff88810ea27500 R14: ffffc90000bc7d00 R15: 1ffff92000178f9c [ 53.052724][ T415] FS: 0000555555ea5400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 53.061741][ T415] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.068318][ T415] CR2: 00007f38036e2a28 CR3: 000000011e079000 CR4: 00000000003506b0 [ 53.076291][ T415] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.084267][ T415] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.092234][ T415] Call Trace: [ 53.095515][ T415] ? lockref_get_or_lock+0x340/0x340 [ 53.100813][ T415] ? umount_tree+0xf50/0xf50 [ 53.105404][ T415] ? vfs_submount+0xb0/0xb0 [ 53.110001][ T415] ? dput+0x2b6/0x320 [ 53.113963][ T415] path_umount+0x1fe/0xfb0 [ 53.118360][ T415] ? namespace_unlock+0x4f0/0x4f0 [ 53.123389][ T415] ? user_path_at_empty+0x40/0x50 [ 53.128390][ T415] __x64_sys_umount+0x122/0x170 [ 53.133322][ T415] ? path_umount+0xfb0/0xfb0 [ 53.137982][ T415] ? debug_smp_processor_id+0x17/0x20 [ 53.143366][ T415] do_syscall_64+0x34/0x70 [ 53.147769][ T415] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.153656][ T415] RIP: 0033:0x7f380369a657 [ 53.158055][ T415] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.178368][ T415] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 53.186778][ T415] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 53.194750][ T415] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 53.202730][ T415] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 53.210699][ T415] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 53.218747][ T415] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 53.226721][ T415] ---[ end trace 28f614c52c1e3016 ]--- [ 53.232483][ T504] FAULT_INJECTION: forcing a failure. [ 53.232483][ T504] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 53.245799][ T504] CPU: 0 PID: 504 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 53.257732][ T504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.267786][ T504] Call Trace: [ 53.271058][ T504] dump_stack_lvl+0x1e2/0x24b [ 53.275719][ T504] ? bfq_pos_tree_add_move+0x43e/0x43e [ 53.281198][ T504] ? __kasan_check_write+0x14/0x20 [ 53.286299][ T504] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 53.291402][ T504] dump_stack+0x15/0x17 [ 53.295724][ T504] should_fail+0x3c0/0x510 [ 53.300129][ T504] should_fail_alloc_page+0x50/0x60 [ 53.305318][ T504] __alloc_pages_nodemask+0x1c0/0x890 [ 53.310873][ T504] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 53.317034][ T504] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 53.322571][ T504] allocate_slab+0x78/0x540 [ 53.327142][ T504] ___slab_alloc+0x131/0x2e0 [ 53.331714][ T504] ? pids_css_alloc+0x4e/0x120 [ 53.336565][ T504] __slab_alloc+0x63/0xa0 [ 53.340879][ T504] ? pids_css_alloc+0x4e/0x120 [ 53.345900][ T504] kmem_cache_alloc_trace+0x20e/0x330 [ 53.351264][ T504] ? pids_css_alloc+0x4e/0x120 [ 53.356015][ T504] pids_css_alloc+0x4e/0x120 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 53.360591][ T504] cgroup_apply_control_enable+0x350/0x12f0 [ 53.366619][ T504] cgroup_apply_control+0x93/0x710 [ 53.371729][ T504] ? css_next_child+0x160/0x160 [ 53.376758][ T504] ? stack_trace_save+0x12d/0x1f0 [ 53.381762][ T504] ? io_schedule+0x120/0x120 [ 53.386396][ T504] ? kernfs_fop_write_iter+0x15e/0x410 [ 53.391841][ T504] ? __kasan_check_write+0x14/0x20 [ 53.397115][ T504] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 53.402413][ T504] cgroup_subtree_control_write+0xd19/0x1310 [ 53.408582][ T504] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 53.414723][ T504] ? __kasan_check_write+0x14/0x20 [ 53.419826][ T504] ? _copy_from_iter+0x3fb/0xd60 [ 53.424764][ T504] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 53.430718][ T504] cgroup_file_write+0x28e/0x590 [ 53.435628][ T504] ? cgroup_seqfile_stop+0xc0/0xc0 [ 53.440713][ T504] ? mutex_lock+0xa6/0x110 [ 53.445114][ T504] ? mutex_trylock+0xb0/0xb0 [ 53.449694][ T504] ? __kasan_check_write+0x14/0x20 [ 53.454791][ T504] kernfs_fop_write_iter+0x2d0/0x410 [ 53.460061][ T504] ? cgroup_seqfile_stop+0xc0/0xc0 [ 53.465157][ T504] vfs_write+0xc1c/0xf40 [ 53.469375][ T504] ? slab_free_freelist_hook+0xcc/0x1a0 [ 53.475001][ T504] ? kernel_write+0x3c0/0x3c0 [ 53.479665][ T504] ? mutex_trylock+0xb0/0xb0 [ 53.484233][ T504] ? __fdget_pos+0x26d/0x310 [ 53.488887][ T504] ? ksys_write+0x77/0x2c0 [ 53.493411][ T504] ksys_write+0x198/0x2c0 [ 53.497821][ T504] ? __ia32_sys_read+0x90/0x90 [ 53.502571][ T504] ? debug_smp_processor_id+0x17/0x20 [ 53.507954][ T504] __x64_sys_write+0x7b/0x90 [ 53.512529][ T504] do_syscall_64+0x34/0x70 [ 53.516921][ T504] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.522812][ T504] RIP: 0033:0x7f3803699249 [ 53.527206][ T504] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.546807][ T504] RSP: 002b:00007f380363d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 53.555217][ T504] RAX: ffffffffffffffda RBX: 00007f38037164a8 RCX: 00007f3803699249 [ 53.563420][ T504] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 53.571557][ T504] RBP: 00007f380363d1f0 R08: 0000000000000002 R09: 0000000000003634 [ 53.579520][ T504] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 53.587478][ T504] R13: 00007ffc9323f9ff R14: 00007f380363d300 R15: 0000000000022000 [ 53.598129][ T413] ------------[ cut here ]------------ [ 53.603735][ T413] WARNING: CPU: 1 PID: 413 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 53.613052][ T413] Modules linked in: [ 53.617110][ T413] CPU: 1 PID: 413 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 53.628837][ T413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.638903][ T413] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 53.644542][ T413] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 53.664798][ T413] RSP: 0018:ffffc90000ba7ca0 EFLAGS: 00010293 [ 53.671203][ T413] RAX: ffffffff81b68a8a RBX: 00000000ffffffff RCX: ffff88810c123b40 [ 53.679180][ T413] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 53.687181][ T413] RBP: ffffc90000ba7d70 R08: ffffffff81b68778 R09: 0000000000000003 [ 53.695366][ T413] R10: fffff52000174f85 R11: 1ffff92000174f84 R12: dffffc0000000000 [ 53.703514][ T413] R13: ffff88810f061dc0 R14: ffffc90000ba7d00 R15: 1ffff92000174f9c [ 53.711657][ T413] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 53.720606][ T413] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.727183][ T413] CR2: 0000555555eaf738 CR3: 000000010a1ff000 CR4: 00000000003506a0 [ 53.735152][ T413] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.743123][ T413] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.751109][ T413] Call Trace: [ 53.754383][ T413] ? lockref_get_or_lock+0x340/0x340 [ 53.759673][ T413] ? umount_tree+0xf50/0xf50 [ 53.764243][ T413] ? vfs_submount+0xb0/0xb0 [ 53.768747][ T413] ? dput+0x2b6/0x320 [ 53.772841][ T413] path_umount+0x1fe/0xfb0 [ 53.777337][ T413] ? namespace_unlock+0x4f0/0x4f0 [ 53.782417][ T413] ? user_path_at_empty+0x40/0x50 [ 53.787565][ T413] __x64_sys_umount+0x122/0x170 [ 53.792500][ T413] ? path_umount+0xfb0/0xfb0 [ 53.797072][ T413] ? debug_smp_processor_id+0x17/0x20 [ 53.802536][ T413] do_syscall_64+0x34/0x70 [ 53.806931][ T413] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.812838][ T413] RIP: 0033:0x7f380369a657 [ 53.817414][ T413] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.837132][ T413] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 53.845694][ T413] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 53.853661][ T413] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 53.861715][ T413] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 53.869703][ T413] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 53.877683][ T413] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 53.885745][ T413] ---[ end trace 28f614c52c1e3017 ]--- [ 53.892087][ T413] ------------[ cut here ]------------ [ 53.897771][ T413] WARNING: CPU: 0 PID: 413 at fs/namespace.c:1109 cleanup_mnt+0x4c5/0x510 [ 53.906788][ T413] Modules linked in: [ 53.912890][ T413] CPU: 0 PID: 413 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 53.925129][ T413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.935519][ C1] ------------[ cut here ]------------ [ 53.935541][ C1] percpu ref (css_release) <= 0 (0) after switching to atomic [ 53.935696][ C1] WARNING: CPU: 1 PID: 413 at lib/percpu-refcount.c:196 percpu_ref_switch_to_atomic_rcu+0x505/0x5b0 [ 53.935705][ C1] Modules linked in: [ 53.935730][ C1] CPU: 1 PID: 413 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 53.935740][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.935756][ C1] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x505/0x5b0 [ 53.935770][ C1] Code: 00 00 00 fc ff df 41 80 3c 06 00 74 08 4c 89 ef e8 00 55 5a ff 49 8b 55 00 48 c7 c7 20 ab 43 85 48 89 de 31 c0 e8 2b dc f2 fe <0f> 0b e9 4b fd ff ff e8 2f 91 20 ff 0f 0b e9 a2 fe ff ff 48 c7 c1 [ 53.935781][ C1] RSP: 0018:ffffc90000160c08 EFLAGS: 00010246 [ 53.935802][ C1] RAX: c1156b8d6588ba00 RBX: ffffffff81647b30 RCX: ffff88810c123b40 [ 53.935807][ C1] RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 [ 53.935812][ C1] RBP: ffffc90000160c50 R08: ffffffff8153b3c8 R09: 0000000000000003 [ 53.935817][ C1] R10: fffff5200002c121 R11: 1ffff9200002c120 R12: 7fffffffffffffff [ 53.935824][ C1] R13: ffff88810f014180 R14: 1ffff11021e02830 R15: ffff88810f0141a0 [ 53.935831][ C1] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 53.935837][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.935842][ C1] CR2: 00007f380363ccc0 CR3: 000000010a1ff000 CR4: 00000000003506a0 [ 53.935851][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.935857][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.935859][ C1] Call Trace: [ 53.935863][ C1] [ 53.935875][ C1] ? percpu_ref_noop_confirm_switch+0x10/0x10 [ 53.935886][ C1] rcu_do_batch+0x4f8/0xbc0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 53.935897][ C1] ? local_bh_enable+0x20/0x20 [ 53.935905][ C1] ? note_gp_changes+0x158/0x260 [ 53.935919][ C1] ? update_load_avg+0x4e7/0xa90 [ 53.935930][ C1] rcu_core+0x59b/0xe30 [ 53.935941][ C1] ? rcu_cpu_kthread_park+0x90/0x90 [ 53.935952][ C1] rcu_core_si+0x9/0x10 [ 53.935962][ C1] __do_softirq+0x27e/0x596 [ 53.935971][ C1] asm_call_irq_on_stack+0xf/0x20 [ 53.935985][ C1] [ 53.935996][ C1] do_softirq_own_stack+0x60/0x80 [ 53.936008][ C1] __irq_exit_rcu+0x128/0x150 [ 53.936021][ C1] irq_exit_rcu+0x9/0x10 [ 53.936037][ C1] sysvec_apic_timer_interrupt+0xbf/0xe0 [ 53.936050][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 53.936065][ C1] RIP: 0010:console_unlock+0xb5c/0xf20 [ 53.936078][ C1] Code: 85 db 4c 8d b4 24 60 01 00 00 0f 85 82 03 00 00 e8 49 6e 00 00 48 8b 44 24 30 48 89 84 24 90 00 00 00 ff b4 24 90 00 00 00 9d <48> 8b 44 24 38 42 80 3c 38 00 74 08 4c 89 f7 e8 f0 c9 52 00 48 c7 [ 53.936089][ C1] RSP: 0018:ffffc90000ba7720 EFLAGS: 00000246 [ 53.936108][ C1] RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff88810c123b40 [ 53.936118][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 53.936129][ C1] RBP: ffffc90000ba79b0 R08: ffffffff8153af0b R09: 0000000000000003 [ 53.936142][ C1] R10: fffff52000174ed5 R11: 1ffff92000174ed4 R12: ffffc90000ba7920 [ 53.936149][ C1] R13: 1ffffffff0c3acd9 R14: ffffc90000ba7880 R15: dffffc0000000000 [ 53.936159][ C1] ? console_unlock+0xb1b/0xf20 [ 53.936172][ C1] ? memcpy+0x56/0x70 [ 53.936182][ C1] ? __kasan_check_write+0x14/0x20 [ 53.936194][ C1] ? _raw_spin_lock_irqsave+0xf8/0x210 [ 53.936204][ C1] ? vprintk_emit+0x640/0x640 [ 53.936213][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 53.936224][ C1] ? vsnprintf+0x1fa/0x1cd0 [ 53.936231][ C1] ? memcpy+0x56/0x70 [ 53.936241][ C1] ? vsnprintf+0x1bfd/0x1cd0 [ 53.936247][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 53.936257][ C1] ? resume_console+0x50/0x50 [ 53.936265][ C1] ? _raw_spin_lock+0xa3/0x1b0 [ 53.936273][ C1] vprintk_emit+0x44b/0x640 [ 53.936281][ C1] ? log_output+0x4d0/0x4d0 [ 53.936289][ C1] ? log_output+0x4d0/0x4d0 [ 53.936297][ C1] ? wake_up_klogd+0xc1/0xf0 [ 53.936306][ C1] ? vprintk_default+0x26/0x30 [ 53.936314][ C1] vprintk_default+0x26/0x30 [ 53.936322][ C1] vprintk_func+0x19d/0x1e0 [ 53.936330][ C1] printk+0xcf/0x10f [ 53.936342][ C1] ? dump_stack_print_info+0xc5/0x130 [ 53.936351][ C1] ? panic+0x7d7/0x7d7 [ 53.936363][ C1] dump_stack_print_info+0x10d/0x130 [ 53.936374][ C1] show_regs_print_info+0x15/0x20 [ 53.936383][ C1] show_regs+0x14/0x60 [ 53.936392][ C1] __warn+0x126/0x260 [ 53.936401][ C1] ? cleanup_mnt+0x4c5/0x510 [ 53.936411][ C1] report_bug+0x410/0x580 [ 53.936420][ C1] ? cleanup_mnt+0x4c5/0x510 [ 53.936430][ C1] handle_bug+0x41/0x70 [ 53.936440][ C1] exc_invalid_op+0x1b/0x50 [ 53.936449][ C1] asm_exc_invalid_op+0x12/0x20 [ 53.936458][ C1] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 53.936469][ C1] Code: 11 a1 ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ae 10 b5 ff 48 8b 7d d0 e8 c5 07 05 00 e9 21 fd ff ff e8 9b 10 b5 ff <0f> 0b e9 e5 fc ff ff 48 c7 c1 18 c8 5e 86 80 e1 07 80 c1 03 38 c1 [ 53.936476][ C1] RSP: 0018:ffffc90000ba7e30 EFLAGS: 00010293 [ 53.936487][ C1] RAX: ffffffff81b7a465 RBX: ffffe8ffffd21d34 RCX: ffff88810c123b40 [ 53.936495][ C1] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 53.936501][ C1] RBP: ffffc90000ba7e80 R08: ffffffff81b7a143 R09: 0000000000000003 [ 53.936508][ C1] R10: fffff52000174fc5 R11: 1ffff92000174fc4 R12: ffff88810f061e28 [ 53.936514][ C1] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 53.936523][ C1] ? cleanup_mnt+0x1a3/0x510 [ 53.936531][ C1] ? cleanup_mnt+0x4c5/0x510 [ 53.936540][ C1] __cleanup_mnt+0x19/0x20 [ 53.936550][ C1] task_work_run+0x147/0x1b0 [ 53.936563][ C1] exit_to_user_mode_loop+0xc8/0xe0 [ 53.936575][ C1] syscall_exit_to_user_mode+0x77/0xa0 [ 53.936585][ C1] do_syscall_64+0x40/0x70 [ 53.936596][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.936605][ C1] RIP: 0033:0x7f380369a657 [ 53.936617][ C1] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.936623][ C1] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 53.936634][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f380369a657 [ 53.936649][ C1] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 53.936663][ C1] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 53.936675][ C1] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 53.936687][ C1] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 53.936697][ C1] ---[ end trace 28f614c52c1e3018 ]--- [ 54.595851][ T413] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 54.596400][ T491] FAULT_INJECTION: forcing a failure. [ 54.596400][ T491] name failslab, interval 1, probability 0, space 0, times 0 [ 54.601518][ T413] Code: 11 a1 ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ae 10 b5 ff 48 8b 7d d0 e8 c5 07 05 00 e9 21 fd ff ff e8 9b 10 b5 ff <0f> 0b e9 e5 fc ff ff 48 c7 c1 18 c8 5e 86 80 e1 07 80 c1 03 38 c1 [ 54.613791][ T491] CPU: 1 PID: 491 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 54.645045][ T491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.655081][ T491] Call Trace: [ 54.658357][ T491] dump_stack_lvl+0x1e2/0x24b [ 54.663012][ T491] ? panic+0x7d7/0x7d7 [ 54.667055][ T491] ? bfq_pos_tree_add_move+0x43e/0x43e [ 54.672506][ T491] ? find_next_bit+0xd6/0x120 [ 54.677162][ T491] ? cpumask_next+0x11/0x30 [ 54.681647][ T491] dump_stack+0x15/0x17 [ 54.685808][ T491] should_fail+0x3c0/0x510 [ 54.690212][ T491] ? percpu_ref_init+0xd0/0x330 [ 54.695042][ T491] __should_failslab+0x9f/0xe0 [ 54.699794][ T491] should_failslab+0x9/0x20 [ 54.704275][ T491] kmem_cache_alloc_trace+0x3a/0x330 [ 54.709535][ T491] percpu_ref_init+0xd0/0x330 [ 54.714194][ T491] ? cgroup_setup_root+0xea0/0xea0 [ 54.719289][ T491] cgroup_apply_control_enable+0x3a2/0x12f0 [ 54.725276][ T491] cgroup_apply_control+0x93/0x710 [ 54.730479][ T491] ? css_next_child+0x160/0x160 [ 54.735432][ T491] ? io_schedule+0x120/0x120 [ 54.740026][ T491] ? kernfs_fop_write_iter+0x15e/0x410 [ 54.745491][ T491] ? __kasan_check_write+0x14/0x20 [ 54.750649][ T491] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 54.755956][ T491] cgroup_subtree_control_write+0xd19/0x1310 [ 54.761936][ T491] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 54.767911][ T491] ? __kasan_check_write+0x14/0x20 [ 54.773003][ T491] ? _copy_from_iter+0x3fb/0xd60 [ 54.777919][ T491] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 54.783874][ T491] cgroup_file_write+0x28e/0x590 [ 54.788789][ T491] ? cgroup_seqfile_stop+0xc0/0xc0 [ 54.794416][ T491] ? mutex_lock+0xa6/0x110 [ 54.798810][ T491] ? mutex_trylock+0xb0/0xb0 [ 54.803383][ T491] ? __kasan_check_write+0x14/0x20 [ 54.808475][ T491] kernfs_fop_write_iter+0x2d0/0x410 [ 54.813739][ T491] ? cgroup_seqfile_stop+0xc0/0xc0 [ 54.818830][ T491] vfs_write+0xc1c/0xf40 [ 54.823053][ T491] ? kernel_write+0x3c0/0x3c0 [ 54.827795][ T491] ? mutex_trylock+0xb0/0xb0 [ 54.832368][ T491] ? __fdget_pos+0x26d/0x310 [ 54.836959][ T491] ? ksys_write+0x77/0x2c0 [ 54.841367][ T491] ksys_write+0x198/0x2c0 [ 54.845693][ T491] ? __ia32_sys_read+0x90/0x90 [ 54.850455][ T491] ? debug_smp_processor_id+0x17/0x20 [ 54.855846][ T491] __x64_sys_write+0x7b/0x90 [ 54.860571][ T491] do_syscall_64+0x34/0x70 [ 54.864990][ T491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.870910][ T491] RIP: 0033:0x7f3803699249 [ 54.875338][ T491] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 54.895114][ T491] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 54.903518][ T491] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 54.911642][ T491] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 54.919594][ T491] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 54.927541][ T491] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 54.935504][ T491] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 54.944198][ T413] RSP: 0018:ffffc90000ba7e30 EFLAGS: 00010293 [ 54.952147][ T417] ------------[ cut here ]------------ [ 54.952426][ T413] RAX: ffffffff81b7a465 RBX: ffffe8ffffd21d34 RCX: ffff88810c123b40 [ 54.960962][ T417] WARNING: CPU: 0 PID: 417 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 54.975548][ T413] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 54.983114][ T417] Modules linked in: [ 54.995030][ T413] RBP: ffffc90000ba7e80 R08: ffffffff81b7a143 R09: 0000000000000003 [ 54.995039][ T413] R10: fffff52000174fc5 R11: 1ffff92000174fc4 R12: ffff88810f061e28 [ 54.995046][ T413] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 54.995064][ T413] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 55.003085][ T417] CPU: 0 PID: 417 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 55.011497][ T413] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.019076][ T417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.019097][ T417] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 55.019115][ T417] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 55.028779][ T413] CR2: 00007f380363ccc0 CR3: 000000010a1ff000 CR4: 00000000003506a0 [ 55.040088][ T417] RSP: 0018:ffffc90000bd7ba0 EFLAGS: 00010293 [ 55.040103][ T417] RAX: ffffffff81b68a8a RBX: 00000000ffffffff RCX: ffff8881067f62c0 [ 55.040109][ T417] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 55.040115][ T417] RBP: ffffc90000bd7c70 R08: ffffffff81b68778 R09: 0000000000000003 [ 55.040122][ T417] R10: fffff5200017af65 R11: 1ffff9200017af64 R12: dffffc0000000000 [ 55.040128][ T417] R13: ffff88810ea26000 R14: ffffc90000bd7c00 R15: 1ffff9200017af7c [ 55.040136][ T417] FS: 0000555555ea5400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 55.040156][ T417] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.047187][ T413] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.056963][ T417] CR2: 0000555555eaf738 CR3: 000000011f67f000 CR4: 00000000003506b0 [ 55.056979][ T417] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.063364][ T413] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.082279][ T417] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.082284][ T417] Call Trace: [ 55.082306][ T417] ? io_schedule+0x120/0x120 [ 55.082317][ T417] ? vfs_submount+0xb0/0xb0 [ 55.082327][ T417] ? shrink_dentry_list+0x4ec/0x500 [ 55.082349][ T417] ? __kasan_check_write+0x14/0x20 [ 55.090911][ T413] Call Trace: [ 55.096459][ T417] namespace_unlock+0x448/0x4f0 [ 55.096470][ T417] ? umount_tree+0xf50/0xf50 [ 55.096487][ T417] ? __detach_mounts+0x670/0x670 [ 55.104761][ T413] __cleanup_mnt+0x19/0x20 [ 55.112461][ T417] ? selinux_umount+0xf0/0x130 [ 55.112472][ T417] ? security_sb_umount+0x9d/0xb0 [ 55.112482][ T417] path_umount+0xf03/0xfb0 [ 55.112492][ T417] ? namespace_unlock+0x4f0/0x4f0 [ 55.112503][ T417] ? user_path_at_empty+0x40/0x50 [ 55.112511][ T417] __x64_sys_umount+0x122/0x170 [ 55.112528][ T417] ? path_umount+0xfb0/0xfb0 [ 55.120598][ T413] task_work_run+0x147/0x1b0 [ 55.128500][ T417] ? debug_smp_processor_id+0x17/0x20 [ 55.128510][ T417] do_syscall_64+0x34/0x70 [ 55.128527][ T417] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.136647][ T413] exit_to_user_mode_loop+0xc8/0xe0 [ 55.146659][ T417] RIP: 0033:0x7f380369a657 [ 55.146672][ T417] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 55.146679][ T417] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 55.146692][ T417] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 55.146698][ T417] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 55.146717][ T417] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 55.154423][ T413] syscall_exit_to_user_mode+0x77/0xa0 [ 55.161427][ T417] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 55.161442][ T417] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 55.169726][ T413] do_syscall_64+0x40/0x70 [ 55.177368][ T417] ---[ end trace 28f614c52c1e3019 ]--- [ 55.177904][ T513] FAULT_INJECTION: forcing a failure. [ 55.177904][ T513] name failslab, interval 1, probability 0, space 0, times 0 [ 55.186025][ T413] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.194333][ T513] CPU: 0 PID: 513 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 55.197923][ T413] RIP: 0033:0x7f380369a657 [ 55.202195][ T513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.202199][ T513] Call Trace: [ 55.202218][ T513] dump_stack_lvl+0x1e2/0x24b [ 55.202226][ T513] ? panic+0x7d7/0x7d7 [ 55.202235][ T513] ? bfq_pos_tree_add_move+0x43e/0x43e [ 55.202245][ T513] ? find_next_bit+0xd6/0x120 [ 55.202265][ T513] ? cpumask_next+0x11/0x30 [ 55.207357][ T413] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 55.212706][ T513] dump_stack+0x15/0x17 [ 55.212715][ T513] should_fail+0x3c0/0x510 [ 55.212725][ T513] ? percpu_ref_init+0xd0/0x330 [ 55.212736][ T513] __should_failslab+0x9f/0xe0 [ 55.212747][ T513] should_failslab+0x9/0x20 [ 55.212766][ T513] kmem_cache_alloc_trace+0x3a/0x330 [ 55.218417][ T413] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 [ 55.221293][ T513] percpu_ref_init+0xd0/0x330 [ 55.221304][ T513] ? cgroup_setup_root+0xea0/0xea0 [ 55.221315][ T513] cgroup_apply_control_enable+0x3a2/0x12f0 [ 55.221333][ T513] cgroup_apply_control+0x93/0x710 [ 55.226461][ T413] ORIG_RAX: 00000000000000a6 [ 55.230723][ T513] ? css_next_child+0x160/0x160 [ 55.230733][ T513] ? io_schedule+0x120/0x120 [ 55.230753][ T513] ? kernfs_fop_write_iter+0x15e/0x410 [ 55.230764][ T513] ? __kasan_check_write+0x14/0x20 [ 55.230772][ T513] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 55.230782][ T513] cgroup_subtree_control_write+0xd19/0x1310 [ 55.230797][ T513] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.236248][ T413] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f380369a657 [ 55.240191][ T513] ? __kasan_check_write+0x14/0x20 [ 55.240202][ T513] ? _copy_from_iter+0x3fb/0xd60 [ 55.240213][ T513] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.240221][ T513] cgroup_file_write+0x28e/0x590 [ 55.240236][ T513] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.245369][ T413] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 55.250053][ T513] ? mutex_lock+0xa6/0x110 [ 55.250061][ T513] ? mutex_trylock+0xb0/0xb0 [ 55.250072][ T513] ? __kasan_check_write+0x14/0x20 [ 55.250082][ T513] kernfs_fop_write_iter+0x2d0/0x410 [ 55.250096][ T513] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.254804][ T413] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 55.259493][ T513] vfs_write+0xc1c/0xf40 [ 55.259504][ T513] ? kernel_write+0x3c0/0x3c0 [ 55.259514][ T513] ? mutex_trylock+0xb0/0xb0 [ 55.259525][ T513] ? __fdget_pos+0x26d/0x310 [ 55.259532][ T513] ? ksys_write+0x77/0x2c0 [ 55.259539][ T513] ksys_write+0x198/0x2c0 [ 55.259548][ T513] ? __ia32_sys_read+0x90/0x90 [ 55.259560][ T513] ? debug_smp_processor_id+0x17/0x20 [ 55.259574][ T513] __x64_sys_write+0x7b/0x90 [ 55.264897][ T417] ------------[ cut here ]------------ [ 55.269494][ T513] do_syscall_64+0x34/0x70 [ 55.269504][ T513] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.269513][ T513] RIP: 0033:0x7f3803699249 [ 55.269528][ T513] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 55.274113][ T417] WARNING: CPU: 1 PID: 417 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 55.278666][ T513] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 [ 55.284033][ T417] Modules linked in: [ 55.288392][ T513] ORIG_RAX: 0000000000000001 [ 55.294296][ T417] [ 55.299426][ T513] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 55.299433][ T513] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 55.299446][ T513] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 [ 55.303944][ T417] CPU: 1 PID: 417 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 55.323508][ T513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 55.323515][ T513] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 55.323948][ T413] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 55.332042][ T417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.332072][ T417] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 55.341174][ T413] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 55.347982][ T417] Code: 48 c7 c2 c0 01 04 86 e8 34 fe 8e ff e9 8b fc ff ff e8 8a 2a b6 ff e9 81 fc ff ff e8 80 2a b6 ff e9 77 fc ff ff e8 76 2a b6 ff <0f> 0b e9 f4 fc ff ff e8 6a 2a b6 ff e8 f5 ba a2 ff e9 ea fc ff ff [ 55.347999][ T417] RSP: 0018:ffffc90000bd7ca0 EFLAGS: 00010293 [ 55.356061][ T413] ---[ end trace 28f614c52c1e301a ]--- [ 55.361749][ T417] [ 55.361762][ T417] RAX: ffffffff81b68a8a RBX: 00000000ffffffff RCX: ffff8881067f62c0 [ 55.361782][ T417] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 55.901337][ T417] RBP: ffffc90000bd7d70 R08: ffffffff81b68778 R09: 0000000000000003 [ 55.909764][ T417] R10: fffff5200017af85 R11: 1ffff9200017af84 R12: dffffc0000000000 [ 55.918373][ T417] R13: ffff88810ea26000 R14: ffffc90000bd7d00 R15: 1ffff9200017af9c [ 55.926831][ T417] FS: 0000555555ea5400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 55.936279][ T417] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.943206][ T417] CR2: 00007f380363ccc0 CR3: 000000011f67f000 CR4: 00000000003506a0 [ 55.951592][ T417] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.959612][ T417] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.967766][ T417] Call Trace: [ 55.971727][ T417] ? lockref_get_or_lock+0x340/0x340 [ 55.977136][ T417] ? umount_tree+0xf50/0xf50 [ 55.981768][ T417] ? vfs_submount+0xb0/0xb0 [ 55.986260][ T417] ? dput+0x2b6/0x320 [ 55.990367][ T417] path_umount+0x1fe/0xfb0 [ 55.994814][ T417] ? namespace_unlock+0x4f0/0x4f0 [ 55.999868][ T417] ? user_path_at_empty+0x40/0x50 [ 56.004878][ T417] __x64_sys_umount+0x122/0x170 [ 56.009737][ T417] ? path_umount+0xfb0/0xfb0 [ 56.014329][ T417] ? debug_smp_processor_id+0x17/0x20 [ 56.019787][ T417] do_syscall_64+0x34/0x70 [ 56.024187][ T417] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.030359][ T417] RIP: 0033:0x7f380369a657 [ 56.034848][ T417] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 56.054605][ T417] RSP: 002b:00007ffc9323e988 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 56.063132][ T417] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f380369a657 [ 56.071113][ T417] RDX: 00007ffc9323ea49 RSI: 000000000000000a RDI: 00007ffc9323ea40 [ 56.079071][ T417] RBP: 00007ffc9323ea40 R08: 00000000ffffffff R09: 00007ffc9323e820 [ 56.087240][ T417] R10: 0000555555ea77a3 R11: 0000000000000206 R12: 00007ffc9323fb00 [ 56.095212][ T417] R13: 0000555555ea7700 R14: 00007ffc9323e9b0 R15: 00007ffc9323fb40 [ 56.103356][ T417] ---[ end trace 28f614c52c1e301b ]--- [ 56.110874][ T496] FAULT_INJECTION: forcing a failure. [ 56.110874][ T496] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 56.126261][ T496] CPU: 0 PID: 496 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 56.137895][ T496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.147941][ T496] Call Trace: [ 56.151309][ T496] dump_stack_lvl+0x1e2/0x24b [ 56.156094][ T496] ? bfq_pos_tree_add_move+0x43e/0x43e [ 56.161656][ T496] ? stack_trace_save+0x12d/0x1f0 [ 56.166684][ T496] dump_stack+0x15/0x17 [ 56.171036][ T496] should_fail+0x3c0/0x510 [ 56.175611][ T496] should_fail_alloc_page+0x50/0x60 [ 56.181257][ T496] __alloc_pages_nodemask+0x1c0/0x890 [ 56.187209][ T496] ? mutex_trylock+0xb0/0xb0 [ 56.191795][ T496] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 56.197866][ T496] ? mutex_unlock+0x1d/0x40 [ 56.202585][ T496] ? kernfs_xattr_get+0x80/0x90 [ 56.207544][ T496] ? selinux_kernfs_init_security+0x1a8/0x760 [ 56.213603][ T496] allocate_slab+0x78/0x540 [ 56.218307][ T496] ___slab_alloc+0x131/0x2e0 [ 56.223531][ T496] ? __kernfs_new_node+0xdb/0x6e0 [ 56.228733][ T496] __slab_alloc+0x63/0xa0 [ 56.233151][ T496] ? __kernfs_new_node+0xdb/0x6e0 [ 56.238202][ T496] kmem_cache_alloc+0x1ef/0x300 [ 56.243267][ T496] ? __kernfs_new_node+0xdb/0x6e0 [ 56.248588][ T496] __kernfs_new_node+0xdb/0x6e0 [ 56.253894][ T496] ? is_module_text_address+0xe1/0x140 [ 56.259369][ T496] ? kernfs_new_node+0x170/0x170 [ 56.264568][ T496] ? ptr_to_hashval+0x60/0x60 [ 56.269258][ T496] ? snprintf+0xd6/0x120 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 56.273504][ T496] ? __kasan_check_write+0x14/0x20 [ 56.278755][ T496] ? mutex_unlock+0x1d/0x40 [ 56.283348][ T496] kernfs_new_node+0x97/0x170 [ 56.288197][ T496] __kernfs_create_file+0x4a/0x270 [ 56.293503][ T496] cgroup_addrm_files+0xab8/0xfe0 [ 56.299017][ T496] ? ____kasan_kmalloc+0xdc/0x110 [ 56.304043][ T496] ? __kasan_kmalloc+0x9/0x10 [ 56.308734][ T496] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 56.314506][ T496] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 56.320651][ T496] ? delete_node+0x759/0x7b0 [ 56.325676][ T496] ? __kasan_check_read+0x11/0x20 [ 56.330695][ T496] ? idr_replace+0x1c4/0x230 [ 56.335359][ T496] ? idr_get_next+0x4b0/0x4b0 [ 56.340119][ T496] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 56.345131][ T496] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 56.350326][ T496] css_populate_dir+0x137/0x370 [ 56.355170][ T496] cgroup_apply_control_enable+0x8b9/0x12f0 [ 56.361053][ T496] cgroup_apply_control+0x93/0x710 [ 56.366174][ T496] ? css_next_child+0x160/0x160 [ 56.371034][ T496] ? release_task_stack+0x4c2/0x660 [ 56.376319][ T496] ? io_schedule+0x120/0x120 [ 56.380912][ T496] ? kernfs_fop_write_iter+0x15e/0x410 [ 56.386382][ T496] ? __kasan_check_write+0x14/0x20 [ 56.391598][ T496] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 56.397374][ T496] cgroup_subtree_control_write+0xd19/0x1310 [ 56.403558][ T496] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.409543][ T496] ? __kasan_check_write+0x14/0x20 [ 56.414761][ T496] ? _copy_from_iter+0x3fb/0xd60 [ 56.419702][ T496] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.425775][ T496] cgroup_file_write+0x28e/0x590 [ 56.430901][ T496] ? cgroup_seqfile_stop+0xc0/0xc0 [ 56.436010][ T496] ? mutex_lock+0xa6/0x110 [ 56.440608][ T496] ? mutex_trylock+0xb0/0xb0 [ 56.445279][ T496] ? __kasan_check_write+0x14/0x20 [ 56.450844][ T496] kernfs_fop_write_iter+0x2d0/0x410 [ 56.456775][ T496] ? cgroup_seqfile_stop+0xc0/0xc0 [ 56.462140][ T496] vfs_write+0xc1c/0xf40 [ 56.466655][ T496] ? kernel_write+0x3c0/0x3c0 [ 56.471429][ T496] ? mutex_trylock+0xb0/0xb0 [ 56.476153][ T496] ? __fdget_pos+0x26d/0x310 [ 56.480927][ T496] ? ksys_write+0x77/0x2c0 [ 56.485346][ T496] ksys_write+0x198/0x2c0 [ 56.489678][ T496] ? __ia32_sys_read+0x90/0x90 [ 56.494472][ T496] ? debug_smp_processor_id+0x17/0x20 [ 56.499929][ T496] __x64_sys_write+0x7b/0x90 [ 56.504521][ T496] do_syscall_64+0x34/0x70 [ 56.508923][ T496] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.514814][ T496] RIP: 0033:0x7f3803699249 [ 56.519236][ T496] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 56.539794][ T496] RSP: 002b:00007f380361c1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 56.549386][ T496] RAX: ffffffffffffffda RBX: 00007f38037164b8 RCX: 00007f3803699249 [ 56.557480][ T496] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 56.565462][ T496] RBP: 00007f380361c1f0 R08: 0000000000000002 R09: 0000000000003634 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 56.573476][ T496] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 56.581718][ T496] R13: 00007ffc9323f9ff R14: 00007f380361c300 R15: 0000000000022000 [ 56.592410][ T418] ------------[ cut here ]------------ [ 56.597965][ T418] WARNING: CPU: 0 PID: 418 at fs/namespace.c:1109 cleanup_mnt+0x4c5/0x510 [ 56.606690][ T418] Modules linked in: [ 56.612944][ T418] CPU: 0 PID: 418 Comm: syz-executor518 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 56.624935][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.629534][ C1] list_add corruption. prev->next should be next (ffff8881f735c060), but was ffff8881f73fa070. (prev=ffff8881f73fa070). [ 56.635343][ T418] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 56.647539][ C1] ------------[ cut here ]------------ [ 56.647545][ C1] kernel BUG at lib/list_debug.c:28! [ 56.647565][ C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 56.647577][ C1] CPU: 1 PID: 18 Comm: ksoftirqd/1 Tainted: G W 5.10.109-syzkaller-05997-g414e6c8e941c #0 [ 56.647583][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.647599][ C1] RIP: 0010:__list_add_valid+0xc6/0xd0 [ 56.647618][ C1] Code: 48 c7 c7 c0 ca 43 85 4c 89 e6 4c 89 f1 31 c0 e8 6d d4 3f 02 0f 0b 48 c7 c7 80 cb 43 85 4c 89 f6 4c 89 e1 31 c0 e8 57 d4 3f 02 <0f> 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 49 [ 56.653153][ T418] Code: 11 a1 ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ae 10 b5 ff 48 8b 7d d0 e8 c5 07 05 00 e9 21 fd ff ff e8 9b 10 b5 ff <0f> 0b e9 e5 fc ff ff 48 c7 c1 18 c8 5e 86 80 e1 07 80 c1 03 38 c1 [ 56.658227][ C1] RSP: 0018:ffffc900001377e0 EFLAGS: 00010046 [ 56.658241][ C1] RAX: 0000000000000075 RBX: ffff8881f735c068 RCX: db9c921012289d00 [ 56.658254][ C1] RDX: 0000000080000101 RSI: 0000000080000101 RDI: 0000000000000000 [ 56.664167][ T418] RSP: 0018:ffffc90000be7e30 EFLAGS: 00010293 [ 56.669546][ C1] RBP: ffffc90000137808 R08: ffffffff8153b3c8 R09: ffffed103ee6a5d8 [ 56.669554][ C1] R10: ffffed103ee6a5d8 R11: 1ffff1103ee6a5d7 R12: ffff8881f73fa070 [ 56.669560][ C1] R13: dffffc0000000000 R14: ffff8881f735c060 R15: ffff8881f73fa070 [ 56.669569][ C1] FS: 0000000000000000(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 56.669576][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.669592][ C1] CR2: 00007f380363ccc0 CR3: 000000010a1ff000 CR4: 00000000003506a0 [ 56.680986][ T418] [ 56.691135][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.691142][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.691146][ C1] Call Trace: [ 56.691167][ C1] insert_work+0x107/0x330 [ 56.691179][ C1] __queue_work+0x971/0xd30 [ 56.691201][ C1] queue_work_on+0xf2/0x150 [ 56.696706][ T418] RAX: ffffffff81b7a465 RBX: ffffe8ffffd21d34 RCX: ffff8881067f3b40 [ 56.716492][ C1] ? wq_worker_last_func+0x50/0x50 [ 56.716503][ C1] ? __alloc_reserved_percpu+0x30/0x30 [ 56.716514][ C1] css_release+0xae/0xc0 [ 56.716525][ C1] percpu_ref_switch_to_atomic_rcu+0x5a2/0x5b0 [ 56.716543][ C1] ? percpu_ref_noop_confirm_switch+0x10/0x10 [ 56.736438][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 56.742349][ C1] rcu_do_batch+0x4f8/0xbc0 [ 56.742361][ C1] ? local_bh_enable+0x20/0x20 [ 56.742373][ C1] ? pick_next_task_fair+0x160/0xcb0 [ 56.742390][ C1] rcu_core+0x59b/0xe30 [ 56.750389][ T418] RBP: ffffc90000be7e80 R08: ffffffff81b7a143 R09: 0000000000000003 [ 56.758288][ C1] ? finish_task_switch+0x130/0x580 [ 56.758298][ C1] ? rcu_cpu_kthread_park+0x90/0x90 [ 56.758318][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 56.764412][ T418] R10: fffff5200017cfc5 R11: 1ffff9200017cfc4 R12: ffff88810f061728 [ 56.772331][ C1] ? rcu_softirq_qs+0xd8/0x1f0 [ 56.772341][ C1] ? rcu_get_gp_kthreads_prio+0x10/0x10 [ 56.772351][ C1] ? irqtime_account_irq+0x76/0x270 [ 56.772367][ C1] rcu_core_si+0x9/0x10 [ 56.780575][ T418] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 56.789133][ C1] __do_softirq+0x27e/0x596 [ 56.789148][ C1] ? ksoftirqd_should_run+0x20/0x20 [ 56.789169][ C1] run_ksoftirqd+0x23/0x30 [ 56.799720][ T418] FS: 0000555555ea5400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 56.806338][ C1] smpboot_thread_fn+0x551/0x930 [ 56.806352][ C1] ? __sched_text_start+0x8/0x8 [ 56.806364][ C1] ? cpu_report_death+0x1a0/0x1a0 [ 56.806370][ C1] ? schedule+0x162/0x1e0 [ 56.806394][ C1] ? __kasan_check_read+0x11/0x20 [ 56.814563][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.816741][ C1] ? __kthread_parkme+0x194/0x1d0 [ 56.816751][ C1] kthread+0x349/0x3d0 [ 56.816769][ C1] ? cpu_report_death+0x1a0/0x1a0 [ 56.824875][ T418] CR2: 00007f380361bfc8 CR3: 000000010b4ae000 CR4: 00000000003506b0 [ 56.832800][ C1] ? kthread_blkcg+0xd0/0xd0 [ 56.832812][ C1] ret_from_fork+0x1f/0x30 [ 56.832818][ C1] Modules linked in: [ 56.832840][ C1] ---[ end trace 28f614c52c1e301c ]--- [ 56.832852][ C1] RIP: 0010:__list_add_valid+0xc6/0xd0 [ 56.832864][ C1] Code: 48 c7 c7 c0 ca 43 85 4c 89 e6 4c 89 f1 31 c0 e8 6d d4 3f 02 0f 0b 48 c7 c7 80 cb 43 85 4c 89 f6 4c 89 e1 31 c0 e8 57 d4 3f 02 <0f> 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 49 [ 56.832882][ C1] RSP: 0018:ffffc900001377e0 EFLAGS: 00010046 [ 56.836257][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.840629][ C1] [ 56.840638][ C1] RAX: 0000000000000075 RBX: ffff8881f735c068 RCX: db9c921012289d00 [ 56.840646][ C1] RDX: 0000000080000101 RSI: 0000000080000101 RDI: 0000000000000000 [ 56.840652][ C1] RBP: ffffc90000137808 R08: ffffffff8153b3c8 R09: ffffed103ee6a5d8 [ 56.840659][ C1] R10: ffffed103ee6a5d8 R11: 1ffff1103ee6a5d7 R12: ffff8881f73fa070 [ 56.840666][ C1] R13: dffffc0000000000 R14: ffff8881f735c060 R15: ffff8881f73fa070 [ 56.840682][ C1] FS: 0000000000000000(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 56.845203][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.849622][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.849630][ C1] CR2: 00007f380363ccc0 CR3: 000000010a1ff000 CR4: 00000000003506a0 [ 56.849639][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.849645][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.849652][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 56.857903][ C1] Kernel Offset: disabled [ 57.207844][ C1] Rebooting in 86400 seconds..