+0x14/0x20 [ 401.091875][ T2600] kernfs_fop_write_iter+0x2d0/0x410 [ 401.097537][ T2600] ? cgroup_seqfile_stop+0xc0/0xc0 [ 401.102721][ T2600] vfs_write+0xc4a/0xf80 [ 401.107379][ T2600] ? kernel_write+0x420/0x420 [ 401.112363][ T2600] ? mutex_lock+0x134/0x1e0 [ 401.116868][ T2600] ? mutex_trylock+0x180/0x180 [ 401.121929][ T2600] ? __fdget_pos+0x26d/0x310 [ 401.126542][ T2600] ? ksys_write+0x77/0x2c0 [ 401.131012][ T2600] ksys_write+0x198/0x2c0 [ 401.135864][ T2600] ? __ia32_sys_read+0x90/0x90 [ 401.141143][ T2600] ? debug_smp_processor_id+0x17/0x20 [ 401.147157][ T2600] __x64_sys_write+0x7b/0x90 [ 401.151977][ T2600] do_syscall_64+0x34/0x70 [ 401.156553][ T2600] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 401.162635][ T2600] RIP: 0033:0x7fd3e8b09199 [ 401.167037][ T2600] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 [ 401.187871][ T2600] RSP: 002b:00007fd3e8a5e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 401.196292][ T2600] RAX: ffffffffffffffda RBX: 00007fd3e8c1c030 RCX: 00007fd3e8b09199 [ 401.204660][ T2600] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 401.212722][ T2600] RBP: 00007fd3e8a5e1d0 R08: 0000000000000000 R09: 0000000000000000 [ 401.220839][ T2600] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 401.228890][ T2600] R13: 00007ffed3c409af R14: 00007fd3e8a5e300 R15: 0000000000022000 [ 401.237990][ T2600] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 401.307591][ T2588] FAULT_INJECTION: forcing a failure. [ 401.307591][ T2588] name failslab, interval 1, probability 0, space 0, times 0 [ 401.320774][ T2588] CPU: 0 PID: 2588 Comm: syz-executor.4 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 401.332232][ T2588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 401.343235][ T2588] Call Trace: [ 401.346752][ T2588] dump_stack_lvl+0x1e2/0x24b [ 401.352186][ T2588] ? bfq_pos_tree_add_move+0x43e/0x43e [ 401.358119][ T2588] ? selinux_kernfs_init_security+0x1a8/0x760 [ 401.364364][ T2588] dump_stack+0x15/0x17 [ 401.368543][ T2588] should_fail+0x3c0/0x510 [ 401.373498][ T2588] ? __kernfs_new_node+0x99/0x6e0 [ 401.378563][ T2588] __should_failslab+0x9f/0xe0 [ 401.384132][ T2588] should_failslab+0x9/0x20 [ 401.389196][ T2588] __kmalloc_track_caller+0x5f/0x350 [ 401.394491][ T2588] kstrdup_const+0x55/0x90 [ 401.399830][ T2588] __kernfs_new_node+0x99/0x6e0 [ 401.405393][ T2588] ? is_module_text_address+0xe1/0x140 [ 401.411668][ T2588] ? kernfs_new_node+0x170/0x170 [ 401.416695][ T2588] ? ptr_to_hashval+0x60/0x60 [ 401.421502][ T2588] ? arch_stack_walk+0xf8/0x140 [ 401.427132][ T2588] ? snprintf+0xd6/0x120 [ 401.431597][ T2588] kernfs_new_node+0x97/0x170 [ 401.436411][ T2588] __kernfs_create_file+0x4a/0x270 [ 401.441754][ T2588] cgroup_addrm_files+0xab8/0xfe0 [ 401.447048][ T2588] ? ____kasan_kmalloc+0xdc/0x110 [ 401.452835][ T2588] ? __kasan_kmalloc+0x9/0x10 [ 401.459765][ T2588] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 401.465677][ T2588] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 401.472696][ T2588] ? delete_node+0x759/0x7b0 [ 401.477277][ T2588] ? __kasan_check_read+0x11/0x20 [ 401.482551][ T2588] ? delete_node+0x759/0x7b0 [ 401.487587][ T2588] ? __kasan_check_write+0x14/0x20 [ 401.492695][ T2588] ? idr_replace+0x1c4/0x230 [ 401.497688][ T2588] ? idr_get_next+0x4b0/0x4b0 [ 401.502351][ T2588] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 401.507867][ T2588] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 401.513762][ T2588] css_populate_dir+0x137/0x370 [ 401.518723][ T2588] cgroup_apply_control_enable+0x8b9/0x12f0 [ 401.525097][ T2588] cgroup_apply_control+0x8e/0x7e0 [ 401.530666][ T2588] ? css_next_child+0x160/0x160 [ 401.535520][ T2588] ? io_schedule+0x120/0x120 [ 401.540120][ T2588] ? __kasan_check_write+0x14/0x20 [ 401.545601][ T2588] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 401.551091][ T2588] cgroup_subtree_control_write+0xd19/0x1310 [ 401.557311][ T2588] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 401.563473][ T2588] ? __kasan_check_write+0x14/0x20 [ 401.569157][ T2588] ? _copy_from_iter+0x3fb/0xd60 [ 401.574578][ T2588] ? asm_sysvec_call_function_single+0x12/0x20 [ 401.581220][ T2588] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 401.587722][ T2588] cgroup_file_write+0x28e/0x590 [ 401.593102][ T2588] ? cgroup_seqfile_stop+0xc0/0xc0 [ 401.598720][ T2588] ? mutex_trylock+0x180/0x180 [ 401.603503][ T2588] ? __kasan_check_write+0x14/0x20 [ 401.608603][ T2588] kernfs_fop_write_iter+0x2d0/0x410 [ 401.614842][ T2588] ? cgroup_seqfile_stop+0xc0/0xc0 [ 401.620616][ T2588] vfs_write+0xc4a/0xf80 [ 401.625228][ T2588] ? kernel_write+0x420/0x420 [ 401.630245][ T2588] ? mutex_lock+0x134/0x1e0 [ 401.634937][ T2588] ? mutex_trylock+0x180/0x180 [ 401.640135][ T2588] ? __fdget_pos+0x26d/0x310 [ 401.645744][ T2588] ? ksys_write+0x77/0x2c0 [ 401.650628][ T2588] ksys_write+0x198/0x2c0 [ 401.655058][ T2588] ? __ia32_sys_read+0x90/0x90 [ 401.660597][ T2588] ? debug_smp_processor_id+0x17/0x20 [ 401.666306][ T2588] __x64_sys_write+0x7b/0x90 [ 401.671276][ T2588] do_syscall_64+0x34/0x70 [ 401.676293][ T2588] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 401.683344][ T2588] RIP: 0033:0x7fca51c4a199 [ 401.688304][ T2588] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 [ 401.710647][ T2588] RSP: 002b:00007fca51b9f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 401.719341][ T2588] RAX: ffffffffffffffda RBX: 00007fca51d5d030 RCX: 00007fca51c4a199 [ 401.728530][ T2588] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 401.736486][ T2588] RBP: 00007fca51b9f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 401.744628][ T2588] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 401.752748][ T2588] R13: 00007fff19ec36bf R14: 00007fca51b9f300 R15: 0000000000022000 [ 401.762280][ T2588] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 401.807518][ T2594] FAULT_INJECTION: forcing a failure. [ 401.807518][ T2594] name failslab, interval 1, probability 0, space 0, times 0 [ 401.820346][ T2594] CPU: 0 PID: 2594 Comm: syz-executor.2 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 401.830811][ T2594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 401.840863][ T2594] Call Trace: [ 401.844147][ T2594] dump_stack_lvl+0x1e2/0x24b [ 401.848961][ T2594] ? bfq_pos_tree_add_move+0x43e/0x43e [ 401.854588][ T2594] ? selinux_kernfs_init_security+0x1a8/0x760 [ 401.861172][ T2594] dump_stack+0x15/0x17 [ 401.865681][ T2594] should_fail+0x3c0/0x510 [ 401.870291][ T2594] ? __kernfs_new_node+0x99/0x6e0 [ 401.875435][ T2594] __should_failslab+0x9f/0xe0 [ 401.880534][ T2594] should_failslab+0x9/0x20 [ 401.885242][ T2594] __kmalloc_track_caller+0x5f/0x350 [ 401.890822][ T2594] kstrdup_const+0x55/0x90 [ 401.895358][ T2594] __kernfs_new_node+0x99/0x6e0 [ 401.900220][ T2594] ? is_module_text_address+0xe1/0x140 [ 401.905784][ T2594] ? kernfs_new_node+0x170/0x170 [ 401.910738][ T2594] ? ptr_to_hashval+0x60/0x60 [ 401.915894][ T2594] ? arch_stack_walk+0xf8/0x140 [ 401.920997][ T2594] ? snprintf+0xd6/0x120 [ 401.925233][ T2594] kernfs_new_node+0x97/0x170 [ 401.930440][ T2594] __kernfs_create_file+0x4a/0x270 [ 401.935674][ T2594] cgroup_addrm_files+0xab8/0xfe0 [ 401.940694][ T2594] ? ____kasan_kmalloc+0xdc/0x110 [ 401.945694][ T2594] ? __kasan_kmalloc+0x9/0x10 [ 401.950551][ T2594] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 401.956979][ T2594] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 401.963231][ T2594] ? delete_node+0x759/0x7b0 [ 401.968041][ T2594] ? __kasan_check_read+0x11/0x20 [ 401.973068][ T2594] ? delete_node+0x759/0x7b0 [ 401.978068][ T2594] ? __kasan_check_write+0x14/0x20 [ 401.983322][ T2594] ? idr_replace+0x1c4/0x230 [ 401.988174][ T2594] ? idr_get_next+0x4b0/0x4b0 [ 401.992915][ T2594] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 401.998176][ T2594] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 402.003926][ T2594] css_populate_dir+0x137/0x370 [ 402.008789][ T2594] cgroup_apply_control_enable+0x8b9/0x12f0 [ 402.014680][ T2594] cgroup_apply_control+0x8e/0x7e0 [ 402.019805][ T2594] ? css_next_child+0x160/0x160 [ 402.024786][ T2594] ? io_schedule+0x120/0x120 [ 402.029942][ T2594] ? kernfs_fop_write_iter+0x15e/0x410 [ 402.035950][ T2594] ? __kasan_check_write+0x14/0x20 [ 402.041294][ T2594] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 402.049569][ T2594] cgroup_subtree_control_write+0xd19/0x1310 [ 402.056798][ T2594] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 402.065078][ T2594] ? __kasan_check_write+0x14/0x20 [ 402.070966][ T2594] ? _copy_from_iter+0x3fb/0xd60 [ 402.076251][ T2594] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 402.082620][ T2594] cgroup_file_write+0x28e/0x590 [ 402.087668][ T2594] ? cgroup_seqfile_stop+0xc0/0xc0 [ 402.092937][ T2594] ? mutex_trylock+0x180/0x180 [ 402.097848][ T2594] ? __kasan_check_write+0x14/0x20 [ 402.102961][ T2594] kernfs_fop_write_iter+0x2d0/0x410 [ 402.108439][ T2594] ? cgroup_seqfile_stop+0xc0/0xc0 [ 402.113578][ T2594] vfs_write+0xc4a/0xf80 [ 402.117826][ T2594] ? kernel_write+0x420/0x420 [ 402.122647][ T2594] ? mutex_lock+0x134/0x1e0 [ 402.127153][ T2594] ? mutex_trylock+0x180/0x180 [ 402.132151][ T2594] ? __fdget_pos+0x26d/0x310 [ 402.137559][ T2594] ? ksys_write+0x77/0x2c0 [ 402.141973][ T2594] ksys_write+0x198/0x2c0 [ 402.146415][ T2594] ? __ia32_sys_read+0x90/0x90 [ 402.151168][ T2594] ? debug_smp_processor_id+0x17/0x20 [ 402.156565][ T2594] __x64_sys_write+0x7b/0x90 [ 402.161354][ T2594] do_syscall_64+0x34/0x70 [ 402.165776][ T2594] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 402.171646][ T2594] RIP: 0033:0x7f66b9c31199 [ 402.176039][ T2594] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 [ 402.196246][ T2594] RSP: 002b:00007f66b9b86168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 402.205052][ T2594] RAX: ffffffffffffffda RBX: 00007f66b9d44030 RCX: 00007f66b9c31199 [ 402.213285][ T2594] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 402.221630][ T2594] RBP: 00007f66b9b861d0 R08: 0000000000000000 R09: 0000000000000000 [ 402.230266][ T2594] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 402.238827][ T2594] R13: 00007fff660d23df R14: 00007f66b9b86300 R15: 0000000000022000 [ 402.248354][ T2594] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 402.807722][ T178] device bridge_slave_1 left promiscuous mode [ 402.814668][ T178] bridge0: port 2(bridge_slave_1) entered disabled state [ 402.822072][ T178] device bridge_slave_0 left promiscuous mode [ 402.828256][ T178] bridge0: port 1(bridge_slave_0) entered disabled state [ 404.097341][ T178] device bridge_slave_1 left promiscuous mode [ 404.103836][ T178] bridge0: port 2(bridge_slave_1) entered disabled state [ 404.111369][ T178] device bridge_slave_0 left promiscuous mode [ 404.117682][ T178] bridge0: port 1(bridge_slave_0) entered disabled state [ 404.125701][ T178] device bridge_slave_1 left promiscuous mode [ 404.132002][ T178] bridge0: port 2(bridge_slave_1) entered disabled state [ 404.139771][ T178] device bridge_slave_0 left promiscuous mode [ 404.146383][ T178] bridge0: port 1(bridge_slave_0) entered disabled state [ 404.154503][ T178] device bridge_slave_1 left promiscuous mode [ 404.161321][ T178] bridge0: port 2(bridge_slave_1) entered disabled state [ 404.169377][ T178] device bridge_slave_0 left promiscuous mode [ 404.175943][ T178] bridge0: port 1(bridge_slave_0) entered disabled state [ 404.183771][ T178] device bridge_slave_1 left promiscuous mode [ 404.190461][ T178] bridge0: port 2(bridge_slave_1) entered disabled state [ 404.198027][ T178] device bridge_slave_0 left promiscuous mode [ 404.204188][ T178] bridge0: port 1(bridge_slave_0) entered disabled state [ 404.212003][ T178] device bridge_slave_1 left promiscuous mode [ 404.218234][ T178] bridge0: port 2(bridge_slave_1) entered disabled state [ 404.225914][ T178] device bridge_slave_0 left promiscuous mode [ 404.232199][ T178] bridge0: port 1(bridge_slave_0) entered disabled state Warning: Permanently added '10.128.1.61' (ECDSA) to the list of known hosts. [ 406.253074][ T2623] cgroup: Unknown subsys name 'net' [ 406.258672][ T2623] cgroup: Unknown subsys name 'devices' [ 406.264906][ T2623] cgroup: Unknown subsys name 'hugetlb' [ 406.270807][ T2623] cgroup: Unknown subsys name 'rlimit' [ 406.327351][ T2636] FAULT_INJECTION: forcing a failure. [ 406.327351][ T2636] name failslab, interval 1, probability 0, space 0, times 0 [ 406.343057][ T2636] CPU: 0 PID: 2636 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 406.353607][ T2636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 406.363671][ T2636] Call Trace: [ 406.367089][ T2636] dump_stack_lvl+0x1e2/0x24b [ 406.372026][ T2636] ? bfq_pos_tree_add_move+0x43e/0x43e [ 406.377601][ T2636] ? selinux_kernfs_init_security+0x1a8/0x760 [ 406.383908][ T2636] dump_stack+0x15/0x17 [ 406.388064][ T2636] should_fail+0x3c0/0x510 [ 406.392573][ T2636] ? __kernfs_new_node+0x99/0x6e0 [ 406.398108][ T2636] __should_failslab+0x9f/0xe0 [ 406.403105][ T2636] should_failslab+0x9/0x20 [ 406.407673][ T2636] __kmalloc_track_caller+0x5f/0x350 [ 406.413300][ T2636] kstrdup_const+0x55/0x90 [ 406.417729][ T2636] __kernfs_new_node+0x99/0x6e0 [ 406.422663][ T2636] ? is_module_text_address+0xe1/0x140 [ 406.428139][ T2636] ? kernfs_new_node+0x170/0x170 [ 406.433068][ T2636] ? ptr_to_hashval+0x60/0x60 [ 406.437734][ T2636] ? mutex_lock+0xb2/0x1e0 [ 406.442142][ T2636] ? snprintf+0xd6/0x120 [ 406.446398][ T2636] ? mutex_unlock+0x29/0xf0 [ 406.450892][ T2636] kernfs_new_node+0x97/0x170 [ 406.455558][ T2636] __kernfs_create_file+0x4a/0x270 [ 406.460735][ T2636] cgroup_addrm_files+0xab8/0xfe0 [ 406.465738][ T2636] ? ____kasan_kmalloc+0xdc/0x110 [ 406.471030][ T2636] ? __kasan_kmalloc+0x9/0x10 [ 406.475833][ T2636] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 406.481495][ T2636] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 406.488055][ T2636] ? delete_node+0x759/0x7b0 [ 406.492867][ T2636] ? __kasan_check_read+0x11/0x20 [ 406.498476][ T2636] ? idr_replace+0x1c4/0x230 [ 406.503731][ T2636] ? idr_get_next+0x4b0/0x4b0 [ 406.509474][ T2636] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 406.514974][ T2636] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 406.521582][ T2636] css_populate_dir+0x137/0x370 [ 406.527121][ T2636] cgroup_apply_control_enable+0x8b9/0x12f0 [ 406.533592][ T2636] cgroup_apply_control+0x8e/0x7e0 [ 406.538959][ T2636] ? css_next_child+0x160/0x160 [ 406.543808][ T2636] ? stack_trace_save+0x12d/0x1f0 [ 406.548870][ T2636] ? io_schedule+0x120/0x120 [ 406.553475][ T2636] ? kernfs_fop_write_iter+0x15e/0x410 [ 406.559121][ T2636] ? __kasan_check_write+0x14/0x20 [ 406.564596][ T2636] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 406.570172][ T2636] cgroup_subtree_control_write+0xd19/0x1310 [ 406.576794][ T2636] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 406.582996][ T2636] ? __kasan_check_write+0x14/0x20 [ 406.588883][ T2636] ? _copy_from_iter+0x3fb/0xd60 [ 406.593813][ T2636] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 406.600143][ T2636] cgroup_file_write+0x28e/0x590 [ 406.605173][ T2636] ? cgroup_seqfile_stop+0xc0/0xc0 [ 406.610412][ T2636] ? mutex_trylock+0x180/0x180 [ 406.615525][ T2636] ? __kasan_check_write+0x14/0x20 [ 406.620993][ T2636] kernfs_fop_write_iter+0x2d0/0x410 [ 406.626528][ T2636] ? cgroup_seqfile_stop+0xc0/0xc0 [ 406.631713][ T2636] vfs_write+0xc4a/0xf80 [ 406.636135][ T2636] ? slab_free_freelist_hook+0xcc/0x1a0 [ 406.642008][ T2636] ? kernel_write+0x420/0x420 [ 406.647193][ T2636] ? do_sys_openat2+0x397/0x470 [ 406.652199][ T2636] ? __kasan_check_read+0x11/0x20 [ 406.657201][ T2636] ? __fdget_pos+0x27e/0x310 [ 406.661774][ T2636] ksys_write+0x198/0x2c0 [ 406.666180][ T2636] ? __ia32_sys_read+0x90/0x90 [ 406.671709][ T2636] ? debug_smp_processor_id+0x17/0x20 [ 406.677843][ T2636] __x64_sys_write+0x7b/0x90 [ 406.682603][ T2636] do_syscall_64+0x34/0x70 [ 406.687011][ T2636] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 406.693165][ T2636] RIP: 0033:0x7f48883727a9 [ 406.697583][ T2636] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 406.717704][ T2636] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 406.726403][ T2636] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 406.734487][ T2636] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 406.742628][ T2636] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 406.750697][ T2636] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 406.759127][ T2636] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000000 [ 406.767362][ T2636] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 406.797457][ T2637] FAULT_INJECTION: forcing a failure. [ 406.797457][ T2637] name failslab, interval 1, probability 0, space 0, times 0 [ 406.810462][ T2637] CPU: 0 PID: 2637 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 406.820950][ T2637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 406.831005][ T2637] Call Trace: [ 406.834428][ T2637] dump_stack_lvl+0x1e2/0x24b [ 406.839186][ T2637] ? panic+0x7d7/0x7d7 [ 406.843245][ T2637] ? bfq_pos_tree_add_move+0x43e/0x43e [ 406.849501][ T2637] ? selinux_kernfs_init_security+0x1a8/0x760 [ 406.856920][ T2637] dump_stack+0x15/0x17 [ 406.861095][ T2637] should_fail+0x3c0/0x510 [ 406.866190][ T2637] __should_failslab+0x9f/0xe0 [ 406.871050][ T2637] should_failslab+0x9/0x20 [ 406.875797][ T2637] kmem_cache_alloc+0x3f/0x300 [ 406.880663][ T2637] ? __kernfs_new_node+0xdb/0x6e0 [ 406.885691][ T2637] __kernfs_new_node+0xdb/0x6e0 [ 406.890627][ T2637] ? is_module_text_address+0xe1/0x140 [ 406.896226][ T2637] ? kernfs_new_node+0x170/0x170 [ 406.901158][ T2637] ? ptr_to_hashval+0x60/0x60 [ 406.905819][ T2637] ? arch_stack_walk+0xf8/0x140 [ 406.910651][ T2637] ? snprintf+0xd6/0x120 [ 406.915016][ T2637] kernfs_new_node+0x97/0x170 [ 406.919875][ T2637] __kernfs_create_file+0x4a/0x270 [ 406.925294][ T2637] cgroup_addrm_files+0xab8/0xfe0 [ 406.930477][ T2637] ? ____kasan_kmalloc+0xdc/0x110 [ 406.935626][ T2637] ? __kasan_kmalloc+0x9/0x10 [ 406.940476][ T2637] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 406.946465][ T2637] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 406.952702][ T2637] ? delete_node+0x759/0x7b0 [ 406.957296][ T2637] ? __kasan_check_read+0x11/0x20 [ 406.962694][ T2637] ? delete_node+0x759/0x7b0 [ 406.967462][ T2637] ? __kasan_check_write+0x14/0x20 [ 406.972591][ T2637] ? idr_replace+0x1c4/0x230 [ 406.977256][ T2637] ? idr_get_next+0x4b0/0x4b0 [ 406.981984][ T2637] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 406.987003][ T2637] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 406.992241][ T2637] css_populate_dir+0x137/0x370 [ 406.997303][ T2637] cgroup_apply_control_enable+0x8b9/0x12f0 [ 407.003730][ T2637] cgroup_apply_control+0x8e/0x7e0 [ 407.009159][ T2637] ? css_next_child+0x160/0x160 [ 407.014039][ T2637] ? stack_trace_save+0x12d/0x1f0 [ 407.020027][ T2637] ? io_schedule+0x120/0x120 [ 407.024638][ T2637] ? kernfs_fop_write_iter+0x15e/0x410 [ 407.030103][ T2637] ? __kasan_check_write+0x14/0x20 [ 407.035307][ T2637] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 407.040616][ T2637] cgroup_subtree_control_write+0xd19/0x1310 [ 407.046709][ T2637] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 407.052794][ T2637] ? __kasan_check_write+0x14/0x20 [ 407.058302][ T2637] ? _copy_from_iter+0x3fb/0xd60 [ 407.063407][ T2637] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 407.069383][ T2637] cgroup_file_write+0x28e/0x590 [ 407.074552][ T2637] ? cgroup_seqfile_stop+0xc0/0xc0 [ 407.079795][ T2637] ? mutex_trylock+0x180/0x180 [ 407.084914][ T2637] ? __kasan_check_write+0x14/0x20 [ 407.090219][ T2637] kernfs_fop_write_iter+0x2d0/0x410 [ 407.095873][ T2637] ? cgroup_seqfile_stop+0xc0/0xc0 [ 407.101353][ T2637] vfs_write+0xc4a/0xf80 [ 407.105623][ T2637] ? slab_free_freelist_hook+0xcc/0x1a0 [ 407.111303][ T2637] ? kernel_write+0x420/0x420 [ 407.116234][ T2637] ? do_sys_openat2+0x397/0x470 [ 407.121282][ T2637] ? __kasan_check_read+0x11/0x20 [ 407.126574][ T2637] ? __fdget_pos+0x27e/0x310 [ 407.131461][ T2637] ksys_write+0x198/0x2c0 [ 407.135899][ T2637] ? __ia32_sys_read+0x90/0x90 [ 407.140698][ T2637] ? debug_smp_processor_id+0x17/0x20 [ 407.146348][ T2637] __x64_sys_write+0x7b/0x90 [ 407.151317][ T2637] do_syscall_64+0x34/0x70 [ 407.155913][ T2637] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 407.161926][ T2637] RIP: 0033:0x7f48883727a9 [ 407.166346][ T2637] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 407.186145][ T2637] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 407.194824][ T2637] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 407.203188][ T2637] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 407.211859][ T2637] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 407.220094][ T2637] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 407.228188][ T2637] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000000 [ 407.236843][ T2637] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 407.277371][ T2638] FAULT_INJECTION: forcing a failure. [ 407.277371][ T2638] name failslab, interval 1, probability 0, space 0, times 0 [ 407.290208][ T2638] CPU: 0 PID: 2638 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 407.302779][ T2638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 407.313882][ T2638] Call Trace: [ 407.317543][ T2638] dump_stack_lvl+0x1e2/0x24b [ 407.322401][ T2638] ? bfq_pos_tree_add_move+0x43e/0x43e [ 407.328116][ T2638] ? selinux_kernfs_init_security+0x1a8/0x760 [ 407.334504][ T2638] dump_stack+0x15/0x17 [ 407.338659][ T2638] should_fail+0x3c0/0x510 [ 407.343097][ T2638] ? __kernfs_new_node+0x99/0x6e0 [ 407.348401][ T2638] __should_failslab+0x9f/0xe0 [ 407.353289][ T2638] should_failslab+0x9/0x20 [ 407.357976][ T2638] __kmalloc_track_caller+0x5f/0x350 [ 407.363291][ T2638] kstrdup_const+0x55/0x90 [ 407.367700][ T2638] __kernfs_new_node+0x99/0x6e0 [ 407.372709][ T2638] ? is_module_text_address+0xe1/0x140 [ 407.378213][ T2638] ? kernfs_new_node+0x170/0x170 [ 407.383388][ T2638] ? ptr_to_hashval+0x60/0x60 [ 407.388201][ T2638] ? mutex_lock+0xb2/0x1e0 [ 407.392749][ T2638] ? snprintf+0xd6/0x120 [ 407.396996][ T2638] ? mutex_unlock+0x29/0xf0 [ 407.401708][ T2638] kernfs_new_node+0x97/0x170 [ 407.406382][ T2638] __kernfs_create_file+0x4a/0x270 [ 407.411612][ T2638] cgroup_addrm_files+0xab8/0xfe0 [ 407.416942][ T2638] ? ____kasan_kmalloc+0xdc/0x110 [ 407.422101][ T2638] ? __kasan_kmalloc+0x9/0x10 [ 407.426818][ T2638] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 407.432385][ T2638] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 407.438552][ T2638] ? delete_node+0x759/0x7b0 [ 407.443328][ T2638] ? __kasan_check_read+0x11/0x20 [ 407.448652][ T2638] ? idr_replace+0x1c4/0x230 [ 407.453758][ T2638] ? idr_get_next+0x4b0/0x4b0 [ 407.459192][ T2638] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 407.464995][ T2638] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 407.470300][ T2638] css_populate_dir+0x137/0x370 [ 407.475848][ T2638] cgroup_apply_control_enable+0x8b9/0x12f0 [ 407.482475][ T2638] cgroup_apply_control+0x8e/0x7e0 [ 407.488062][ T2638] ? css_next_child+0x160/0x160 [ 407.493967][ T2638] ? stack_trace_save+0x12d/0x1f0 [ 407.499386][ T2638] ? io_schedule+0x120/0x120 [ 407.504331][ T2638] ? kernfs_fop_write_iter+0x15e/0x410 [ 407.510690][ T2638] ? __kasan_check_write+0x14/0x20 [ 407.516159][ T2638] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 407.521740][ T2638] cgroup_subtree_control_write+0xd19/0x1310 [ 407.528188][ T2638] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 407.534287][ T2638] ? __kasan_check_write+0x14/0x20 [ 407.540091][ T2638] ? _copy_from_iter+0x3fb/0xd60 [ 407.545068][ T2638] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 407.551552][ T2638] cgroup_file_write+0x28e/0x590 [ 407.556885][ T2638] ? cgroup_seqfile_stop+0xc0/0xc0 [ 407.562365][ T2638] ? mutex_trylock+0x180/0x180 [ 407.567390][ T2638] ? __kasan_check_write+0x14/0x20 [ 407.572674][ T2638] kernfs_fop_write_iter+0x2d0/0x410 [ 407.578073][ T2638] ? cgroup_seqfile_stop+0xc0/0xc0 [ 407.583298][ T2638] vfs_write+0xc4a/0xf80 [ 407.589020][ T2638] ? slab_free_freelist_hook+0xcc/0x1a0 [ 407.594566][ T2638] ? kernel_write+0x420/0x420 [ 407.599312][ T2638] ? do_sys_openat2+0x397/0x470 [ 407.604176][ T2638] ? __kasan_check_read+0x11/0x20 [ 407.609428][ T2638] ? __fdget_pos+0x27e/0x310 [ 407.614144][ T2638] ksys_write+0x198/0x2c0 [ 407.618638][ T2638] ? __ia32_sys_read+0x90/0x90 [ 407.623406][ T2638] ? debug_smp_processor_id+0x17/0x20 [ 407.628965][ T2638] __x64_sys_write+0x7b/0x90 [ 407.633676][ T2638] do_syscall_64+0x34/0x70 [ 407.638079][ T2638] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 407.643953][ T2638] RIP: 0033:0x7f48883727a9 [ 407.648354][ T2638] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 407.668036][ T2638] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 407.676589][ T2638] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 407.689999][ T2638] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 407.697968][ T2638] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 407.706402][ T2638] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 407.715427][ T2638] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000000 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 407.724723][ T2638] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 407.757302][ T2640] FAULT_INJECTION: forcing a failure. [ 407.757302][ T2640] name failslab, interval 1, probability 0, space 0, times 0 [ 407.770402][ T2640] CPU: 0 PID: 2640 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 407.781071][ T2640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 407.791336][ T2640] Call Trace: [ 407.794627][ T2640] dump_stack_lvl+0x1e2/0x24b [ 407.799449][ T2640] ? bfq_pos_tree_add_move+0x43e/0x43e [ 407.804904][ T2640] ? selinux_kernfs_init_security+0x1a8/0x760 [ 407.811176][ T2640] dump_stack+0x15/0x17 [ 407.815441][ T2640] should_fail+0x3c0/0x510 [ 407.820228][ T2640] ? __kernfs_new_node+0x99/0x6e0 [ 407.825808][ T2640] __should_failslab+0x9f/0xe0 [ 407.830975][ T2640] should_failslab+0x9/0x20 [ 407.836513][ T2640] __kmalloc_track_caller+0x5f/0x350 [ 407.841970][ T2640] kstrdup_const+0x55/0x90 [ 407.846934][ T2640] __kernfs_new_node+0x99/0x6e0 [ 407.851832][ T2640] ? is_module_text_address+0xe1/0x140 [ 407.857465][ T2640] ? kernfs_new_node+0x170/0x170 [ 407.862528][ T2640] ? ptr_to_hashval+0x60/0x60 [ 407.867261][ T2640] ? mutex_lock+0xb2/0x1e0 [ 407.872146][ T2640] ? snprintf+0xd6/0x120 [ 407.876886][ T2640] ? mutex_unlock+0x29/0xf0 [ 407.881387][ T2640] kernfs_new_node+0x97/0x170 [ 407.886076][ T2640] __kernfs_create_file+0x4a/0x270 [ 407.891311][ T2640] cgroup_addrm_files+0xab8/0xfe0 [ 407.896599][ T2640] ? ____kasan_kmalloc+0xdc/0x110 [ 407.901701][ T2640] ? __kasan_kmalloc+0x9/0x10 [ 407.906556][ T2640] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 407.912097][ T2640] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 407.918445][ T2640] ? delete_node+0x759/0x7b0 [ 407.923293][ T2640] ? __kasan_check_read+0x11/0x20 [ 407.928542][ T2640] ? idr_replace+0x1c4/0x230 [ 407.933491][ T2640] ? idr_get_next+0x4b0/0x4b0 [ 407.938661][ T2640] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 407.944169][ T2640] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 407.950522][ T2640] css_populate_dir+0x137/0x370 [ 407.956531][ T2640] cgroup_apply_control_enable+0x8b9/0x12f0 [ 407.963268][ T2640] cgroup_apply_control+0x8e/0x7e0 [ 407.968614][ T2640] ? css_next_child+0x160/0x160 [ 407.973454][ T2640] ? stack_trace_save+0x12d/0x1f0 [ 407.978669][ T2640] ? io_schedule+0x120/0x120 [ 407.983354][ T2640] ? kernfs_fop_write_iter+0x15e/0x410 [ 407.989171][ T2640] ? __kasan_check_write+0x14/0x20 [ 407.994406][ T2640] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 407.999697][ T2640] cgroup_subtree_control_write+0xd19/0x1310 [ 408.005793][ T2640] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 408.011799][ T2640] ? __kasan_check_write+0x14/0x20 [ 408.017116][ T2640] ? _copy_from_iter+0x3fb/0xd60 [ 408.022065][ T2640] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 408.028525][ T2640] cgroup_file_write+0x28e/0x590 [ 408.033448][ T2640] ? cgroup_seqfile_stop+0xc0/0xc0 [ 408.038543][ T2640] ? mutex_trylock+0x180/0x180 [ 408.043305][ T2640] ? __kasan_check_write+0x14/0x20 [ 408.048423][ T2640] kernfs_fop_write_iter+0x2d0/0x410 [ 408.053714][ T2640] ? cgroup_seqfile_stop+0xc0/0xc0 [ 408.058818][ T2640] vfs_write+0xc4a/0xf80 [ 408.063049][ T2640] ? slab_free_freelist_hook+0xcc/0x1a0 [ 408.068590][ T2640] ? kernel_write+0x420/0x420 [ 408.073370][ T2640] ? do_sys_openat2+0x397/0x470 [ 408.078786][ T2640] ? __kasan_check_read+0x11/0x20 [ 408.083817][ T2640] ? __fdget_pos+0x27e/0x310 [ 408.088398][ T2640] ksys_write+0x198/0x2c0 [ 408.092713][ T2640] ? __ia32_sys_read+0x90/0x90 [ 408.097472][ T2640] ? debug_smp_processor_id+0x17/0x20 [ 408.103007][ T2640] __x64_sys_write+0x7b/0x90 [ 408.107578][ T2640] do_syscall_64+0x34/0x70 [ 408.111979][ T2640] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 408.117884][ T2640] RIP: 0033:0x7f48883727a9 [ 408.122384][ T2640] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 408.141974][ T2640] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 408.150404][ T2640] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 408.158724][ T2640] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 408.166777][ T2640] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 408.174821][ T2640] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 408.182784][ T2640] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000001 [ 408.190885][ T2640] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 408.237259][ T2639] FAULT_INJECTION: forcing a failure. [ 408.237259][ T2639] name failslab, interval 1, probability 0, space 0, times 0 [ 408.250199][ T2639] CPU: 1 PID: 2639 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 408.260703][ T2639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 408.271302][ T2639] Call Trace: [ 408.274872][ T2639] dump_stack_lvl+0x1e2/0x24b [ 408.279543][ T2639] ? bfq_pos_tree_add_move+0x43e/0x43e [ 408.285427][ T2639] ? selinux_kernfs_init_security+0x1a8/0x760 [ 408.291493][ T2639] dump_stack+0x15/0x17 [ 408.295654][ T2639] should_fail+0x3c0/0x510 [ 408.300066][ T2639] ? __kernfs_new_node+0x99/0x6e0 [ 408.305080][ T2639] __should_failslab+0x9f/0xe0 [ 408.309933][ T2639] should_failslab+0x9/0x20 [ 408.314516][ T2639] __kmalloc_track_caller+0x5f/0x350 [ 408.319787][ T2639] kstrdup_const+0x55/0x90 [ 408.324189][ T2639] __kernfs_new_node+0x99/0x6e0 [ 408.329286][ T2639] ? is_module_text_address+0xe1/0x140 [ 408.334749][ T2639] ? kernfs_new_node+0x170/0x170 [ 408.339773][ T2639] ? ptr_to_hashval+0x60/0x60 [ 408.344540][ T2639] ? mutex_lock+0xb2/0x1e0 [ 408.348938][ T2639] ? snprintf+0xd6/0x120 [ 408.353272][ T2639] ? mutex_unlock+0x29/0xf0 [ 408.358078][ T2639] kernfs_new_node+0x97/0x170 [ 408.362755][ T2639] __kernfs_create_file+0x4a/0x270 [ 408.367853][ T2639] cgroup_addrm_files+0xab8/0xfe0 [ 408.372867][ T2639] ? ____kasan_kmalloc+0xdc/0x110 [ 408.377886][ T2639] ? __kasan_kmalloc+0x9/0x10 [ 408.382648][ T2639] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 408.388301][ T2639] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 408.394452][ T2639] ? delete_node+0x759/0x7b0 [ 408.399030][ T2639] ? __kasan_check_read+0x11/0x20 [ 408.404123][ T2639] ? idr_replace+0x1c4/0x230 [ 408.408975][ T2639] ? idr_get_next+0x4b0/0x4b0 [ 408.413663][ T2639] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 408.418960][ T2639] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 408.424146][ T2639] css_populate_dir+0x137/0x370 [ 408.429186][ T2639] cgroup_apply_control_enable+0x8b9/0x12f0 [ 408.435209][ T2639] cgroup_apply_control+0x8e/0x7e0 [ 408.440427][ T2639] ? css_next_child+0x160/0x160 [ 408.445463][ T2639] ? io_schedule+0x120/0x120 [ 408.450056][ T2639] ? kernfs_fop_write_iter+0x15e/0x410 [ 408.455538][ T2639] ? __kasan_check_write+0x14/0x20 [ 408.460635][ T2639] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 408.465905][ T2639] cgroup_subtree_control_write+0xd19/0x1310 [ 408.471989][ T2639] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 408.478262][ T2639] ? __kasan_check_write+0x14/0x20 [ 408.484110][ T2639] ? _copy_from_iter+0x3fb/0xd60 [ 408.489270][ T2639] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 408.495393][ T2639] cgroup_file_write+0x28e/0x590 [ 408.500557][ T2639] ? cgroup_seqfile_stop+0xc0/0xc0 [ 408.505736][ T2639] ? mutex_trylock+0x180/0x180 [ 408.510515][ T2639] ? __kasan_check_write+0x14/0x20 [ 408.515747][ T2639] kernfs_fop_write_iter+0x2d0/0x410 [ 408.521040][ T2639] ? cgroup_seqfile_stop+0xc0/0xc0 [ 408.526292][ T2639] vfs_write+0xc4a/0xf80 [ 408.530609][ T2639] ? kernel_write+0x420/0x420 [ 408.535393][ T2639] ? do_sys_openat2+0x397/0x470 [ 408.540245][ T2639] ? __kasan_check_read+0x11/0x20 [ 408.545284][ T2639] ? __fdget_pos+0x27e/0x310 [ 408.550090][ T2639] ksys_write+0x198/0x2c0 [ 408.554517][ T2639] ? __ia32_sys_read+0x90/0x90 [ 408.559284][ T2639] ? debug_smp_processor_id+0x17/0x20 [ 408.564786][ T2639] __x64_sys_write+0x7b/0x90 [ 408.569380][ T2639] do_syscall_64+0x34/0x70 [ 408.574219][ T2639] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 408.580205][ T2639] RIP: 0033:0x7f48883727a9 [ 408.584613][ T2639] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 408.604212][ T2639] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 408.612615][ T2639] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 408.620572][ T2639] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 408.628887][ T2639] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 408.636865][ T2639] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 408.644824][ T2639] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000000 [ 408.653079][ T2639] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 408.697245][ T2644] FAULT_INJECTION: forcing a failure. [ 408.697245][ T2644] name failslab, interval 1, probability 0, space 0, times 0 [ 408.710189][ T2644] CPU: 1 PID: 2644 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 408.720842][ T2644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 408.731138][ T2644] Call Trace: [ 408.734429][ T2644] dump_stack_lvl+0x1e2/0x24b [ 408.739208][ T2644] ? bfq_pos_tree_add_move+0x43e/0x43e [ 408.744647][ T2644] ? selinux_kernfs_init_security+0x1a8/0x760 [ 408.750695][ T2644] dump_stack+0x15/0x17 [ 408.754833][ T2644] should_fail+0x3c0/0x510 [ 408.759229][ T2644] ? __kernfs_new_node+0x99/0x6e0 [ 408.764362][ T2644] __should_failslab+0x9f/0xe0 [ 408.769106][ T2644] should_failslab+0x9/0x20 [ 408.773592][ T2644] __kmalloc_track_caller+0x5f/0x350 [ 408.778944][ T2644] kstrdup_const+0x55/0x90 [ 408.783343][ T2644] __kernfs_new_node+0x99/0x6e0 [ 408.788513][ T2644] ? is_module_text_address+0xe1/0x140 [ 408.793970][ T2644] ? kernfs_new_node+0x170/0x170 [ 408.798919][ T2644] ? ptr_to_hashval+0x60/0x60 [ 408.803683][ T2644] ? mutex_lock+0xb2/0x1e0 [ 408.808361][ T2644] ? snprintf+0xd6/0x120 [ 408.812596][ T2644] ? mutex_unlock+0x29/0xf0 [ 408.817088][ T2644] kernfs_new_node+0x97/0x170 [ 408.821861][ T2644] __kernfs_create_file+0x4a/0x270 [ 408.826965][ T2644] cgroup_addrm_files+0xab8/0xfe0 [ 408.832021][ T2644] ? ____kasan_kmalloc+0xdc/0x110 [ 408.837046][ T2644] ? __kasan_kmalloc+0x9/0x10 [ 408.841719][ T2644] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 408.847320][ T2644] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 408.853600][ T2644] ? delete_node+0x759/0x7b0 [ 408.858355][ T2644] ? __kasan_check_read+0x11/0x20 [ 408.863382][ T2644] ? idr_replace+0x1c4/0x230 [ 408.868112][ T2644] ? idr_get_next+0x4b0/0x4b0 [ 408.873345][ T2644] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 408.878830][ T2644] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 408.884194][ T2644] css_populate_dir+0x137/0x370 [ 408.889651][ T2644] cgroup_apply_control_enable+0x8b9/0x12f0 [ 408.895730][ T2644] cgroup_apply_control+0x8e/0x7e0 [ 408.900934][ T2644] ? css_next_child+0x160/0x160 [ 408.906017][ T2644] ? stack_trace_save+0x12d/0x1f0 [ 408.911053][ T2644] ? io_schedule+0x120/0x120 [ 408.915635][ T2644] ? kernfs_fop_write_iter+0x15e/0x410 [ 408.921079][ T2644] ? __kasan_check_write+0x14/0x20 [ 408.926276][ T2644] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 408.931735][ T2644] cgroup_subtree_control_write+0xd19/0x1310 [ 408.938398][ T2644] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 408.944466][ T2644] ? __kasan_check_write+0x14/0x20 [ 408.949839][ T2644] ? _copy_from_iter+0x3fb/0xd60 [ 408.954850][ T2644] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 408.960925][ T2644] cgroup_file_write+0x28e/0x590 [ 408.966198][ T2644] ? cgroup_seqfile_stop+0xc0/0xc0 [ 408.971313][ T2644] ? mutex_trylock+0x180/0x180 [ 408.976170][ T2644] ? __kasan_check_write+0x14/0x20 [ 408.981268][ T2644] kernfs_fop_write_iter+0x2d0/0x410 [ 408.986556][ T2644] ? cgroup_seqfile_stop+0xc0/0xc0 [ 408.991772][ T2644] vfs_write+0xc4a/0xf80 [ 408.996011][ T2644] ? slab_free_freelist_hook+0xcc/0x1a0 [ 409.001540][ T2644] ? kernel_write+0x420/0x420 [ 409.006408][ T2644] ? do_sys_openat2+0x397/0x470 [ 409.011421][ T2644] ? __kasan_check_read+0x11/0x20 [ 409.016604][ T2644] ? __fdget_pos+0x27e/0x310 [ 409.021180][ T2644] ksys_write+0x198/0x2c0 [ 409.025595][ T2644] ? __ia32_sys_read+0x90/0x90 [ 409.030940][ T2644] ? debug_smp_processor_id+0x17/0x20 [ 409.036652][ T2644] __x64_sys_write+0x7b/0x90 [ 409.041589][ T2644] do_syscall_64+0x34/0x70 [ 409.046206][ T2644] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 409.053035][ T2644] RIP: 0033:0x7f48883727a9 [ 409.057707][ T2644] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 409.077505][ T2644] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 409.086001][ T2644] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 409.094465][ T2644] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 409.102818][ T2644] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 409.111511][ T2644] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 409.119485][ T2644] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000001 [ 409.128002][ T2644] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 409.177184][ T2641] FAULT_INJECTION: forcing a failure. [ 409.177184][ T2641] name failslab, interval 1, probability 0, space 0, times 0 [ 409.190106][ T2641] CPU: 0 PID: 2641 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 409.201258][ T2641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 409.211581][ T2641] Call Trace: [ 409.214878][ T2641] dump_stack_lvl+0x1e2/0x24b [ 409.219743][ T2641] ? bfq_pos_tree_add_move+0x43e/0x43e [ 409.225483][ T2641] ? selinux_kernfs_init_security+0x1a8/0x760 [ 409.231871][ T2641] dump_stack+0x15/0x17 [ 409.236190][ T2641] should_fail+0x3c0/0x510 [ 409.240601][ T2641] ? __kernfs_new_node+0x99/0x6e0 [ 409.245915][ T2641] __should_failslab+0x9f/0xe0 [ 409.250677][ T2641] should_failslab+0x9/0x20 [ 409.255184][ T2641] __kmalloc_track_caller+0x5f/0x350 [ 409.260568][ T2641] kstrdup_const+0x55/0x90 [ 409.265177][ T2641] __kernfs_new_node+0x99/0x6e0 [ 409.270215][ T2641] ? is_module_text_address+0xe1/0x140 [ 409.275877][ T2641] ? kernfs_new_node+0x170/0x170 [ 409.280898][ T2641] ? ptr_to_hashval+0x60/0x60 [ 409.286105][ T2641] ? mutex_lock+0xb2/0x1e0 [ 409.291034][ T2641] ? snprintf+0xd6/0x120 [ 409.295443][ T2641] ? mutex_unlock+0x29/0xf0 [ 409.300074][ T2641] kernfs_new_node+0x97/0x170 [ 409.304865][ T2641] __kernfs_create_file+0x4a/0x270 [ 409.309980][ T2641] cgroup_addrm_files+0xab8/0xfe0 [ 409.315658][ T2641] ? ____kasan_kmalloc+0xdc/0x110 [ 409.320941][ T2641] ? __kasan_kmalloc+0x9/0x10 [ 409.325850][ T2641] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 409.331908][ T2641] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 409.338488][ T2641] ? delete_node+0x759/0x7b0 [ 409.343166][ T2641] ? __kasan_check_read+0x11/0x20 [ 409.348193][ T2641] ? idr_replace+0x1c4/0x230 [ 409.352875][ T2641] ? idr_get_next+0x4b0/0x4b0 [ 409.357837][ T2641] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 409.363001][ T2641] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 409.368381][ T2641] css_populate_dir+0x137/0x370 [ 409.373241][ T2641] cgroup_apply_control_enable+0x8b9/0x12f0 [ 409.379144][ T2641] cgroup_apply_control+0x8e/0x7e0 [ 409.384683][ T2641] ? css_next_child+0x160/0x160 [ 409.390136][ T2641] ? stack_trace_save+0x12d/0x1f0 [ 409.395315][ T2641] ? io_schedule+0x120/0x120 [ 409.400131][ T2641] ? kernfs_fop_write_iter+0x15e/0x410 [ 409.405587][ T2641] ? __kasan_check_write+0x14/0x20 [ 409.410699][ T2641] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 409.416345][ T2641] cgroup_subtree_control_write+0xd19/0x1310 [ 409.423126][ T2641] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 409.429428][ T2641] ? __kasan_check_write+0x14/0x20 [ 409.435042][ T2641] ? _copy_from_iter+0x3fb/0xd60 [ 409.440037][ T2641] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 409.446035][ T2641] cgroup_file_write+0x28e/0x590 [ 409.450967][ T2641] ? cgroup_seqfile_stop+0xc0/0xc0 [ 409.456189][ T2641] ? mutex_trylock+0x180/0x180 [ 409.461101][ T2641] ? __kasan_check_write+0x14/0x20 [ 409.466234][ T2641] kernfs_fop_write_iter+0x2d0/0x410 [ 409.471516][ T2641] ? cgroup_seqfile_stop+0xc0/0xc0 [ 409.477402][ T2641] vfs_write+0xc4a/0xf80 [ 409.482825][ T2641] ? slab_free_freelist_hook+0xcc/0x1a0 [ 409.488405][ T2641] ? kernel_write+0x420/0x420 [ 409.493496][ T2641] ? do_sys_openat2+0x397/0x470 [ 409.498934][ T2641] ? __kasan_check_read+0x11/0x20 [ 409.504073][ T2641] ? __fdget_pos+0x27e/0x310 [ 409.510338][ T2641] ksys_write+0x198/0x2c0 [ 409.515960][ T2641] ? __ia32_sys_read+0x90/0x90 [ 409.521836][ T2641] ? debug_smp_processor_id+0x17/0x20 [ 409.529134][ T2641] __x64_sys_write+0x7b/0x90 [ 409.534427][ T2641] do_syscall_64+0x34/0x70 [ 409.539338][ T2641] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 409.546311][ T2641] RIP: 0033:0x7f48883727a9 [ 409.551298][ T2641] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 409.571196][ T2641] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 409.579720][ T2641] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 409.587686][ T2641] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 409.595652][ T2641] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 409.603744][ T2641] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 409.611800][ T2641] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000000 [ 409.620364][ T2641] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 409.667556][ T2648] FAULT_INJECTION: forcing a failure. [ 409.667556][ T2648] name failslab, interval 1, probability 0, space 0, times 0 [ 409.680222][ T2648] CPU: 0 PID: 2648 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 409.690794][ T2648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 409.701241][ T2648] Call Trace: [ 409.704535][ T2648] dump_stack_lvl+0x1e2/0x24b [ 409.709194][ T2648] ? bfq_pos_tree_add_move+0x43e/0x43e [ 409.714637][ T2648] ? selinux_kernfs_init_security+0x1a8/0x760 [ 409.720859][ T2648] dump_stack+0x15/0x17 [ 409.725046][ T2648] should_fail+0x3c0/0x510 [ 409.729477][ T2648] ? __kernfs_new_node+0x99/0x6e0 [ 409.734510][ T2648] __should_failslab+0x9f/0xe0 [ 409.739259][ T2648] should_failslab+0x9/0x20 [ 409.743754][ T2648] __kmalloc_track_caller+0x5f/0x350 [ 409.749122][ T2648] kstrdup_const+0x55/0x90 [ 409.753563][ T2648] __kernfs_new_node+0x99/0x6e0 [ 409.758395][ T2648] ? is_module_text_address+0xe1/0x140 [ 409.763835][ T2648] ? kernfs_new_node+0x170/0x170 [ 409.768785][ T2648] ? ptr_to_hashval+0x60/0x60 [ 409.773456][ T2648] ? mutex_lock+0xb2/0x1e0 [ 409.777902][ T2648] ? snprintf+0xd6/0x120 [ 409.782242][ T2648] ? mutex_unlock+0x29/0xf0 [ 409.786746][ T2648] kernfs_new_node+0x97/0x170 [ 409.791521][ T2648] __kernfs_create_file+0x4a/0x270 [ 409.796663][ T2648] cgroup_addrm_files+0xab8/0xfe0 [ 409.801671][ T2648] ? ____kasan_kmalloc+0xdc/0x110 [ 409.806671][ T2648] ? __kasan_kmalloc+0x9/0x10 [ 409.811355][ T2648] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 409.816905][ T2648] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 409.823222][ T2648] ? delete_node+0x759/0x7b0 [ 409.827791][ T2648] ? __kasan_check_read+0x11/0x20 [ 409.832945][ T2648] ? idr_replace+0x1c4/0x230 [ 409.837524][ T2648] ? idr_get_next+0x4b0/0x4b0 [ 409.842185][ T2648] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 409.847189][ T2648] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 409.852367][ T2648] css_populate_dir+0x137/0x370 [ 409.857314][ T2648] cgroup_apply_control_enable+0x8b9/0x12f0 [ 409.863224][ T2648] cgroup_apply_control+0x8e/0x7e0 [ 409.868408][ T2648] ? css_next_child+0x160/0x160 [ 409.873239][ T2648] ? io_schedule+0x120/0x120 [ 409.877809][ T2648] ? kernfs_fop_write_iter+0x15e/0x410 [ 409.883254][ T2648] ? __kasan_check_write+0x14/0x20 [ 409.888346][ T2648] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 409.893647][ T2648] cgroup_subtree_control_write+0xd19/0x1310 [ 409.899672][ T2648] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 409.905807][ T2648] ? __kasan_check_write+0x14/0x20 [ 409.911072][ T2648] ? _copy_from_iter+0x3fb/0xd60 [ 409.915989][ T2648] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 409.921950][ T2648] cgroup_file_write+0x28e/0x590 [ 409.926886][ T2648] ? cgroup_seqfile_stop+0xc0/0xc0 [ 409.931995][ T2648] ? mutex_trylock+0x180/0x180 [ 409.936942][ T2648] ? __kasan_check_write+0x14/0x20 [ 409.942058][ T2648] kernfs_fop_write_iter+0x2d0/0x410 [ 409.947333][ T2648] ? cgroup_seqfile_stop+0xc0/0xc0 [ 409.952433][ T2648] vfs_write+0xc4a/0xf80 [ 409.956678][ T2648] ? kernel_write+0x420/0x420 [ 409.961397][ T2648] ? do_sys_openat2+0x397/0x470 [ 409.966273][ T2648] ? __kasan_check_read+0x11/0x20 [ 409.971446][ T2648] ? __fdget_pos+0x27e/0x310 [ 409.976114][ T2648] ksys_write+0x198/0x2c0 [ 409.980430][ T2648] ? __ia32_sys_read+0x90/0x90 [ 409.985261][ T2648] ? debug_smp_processor_id+0x17/0x20 [ 409.990614][ T2648] __x64_sys_write+0x7b/0x90 [ 409.995286][ T2648] do_syscall_64+0x34/0x70 [ 409.999704][ T2648] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 410.005710][ T2648] RIP: 0033:0x7f48883727a9 [ 410.010118][ T2648] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 410.029905][ T2648] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 410.038298][ T2648] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 410.046247][ T2648] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 410.054202][ T2648] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 410.062335][ T2648] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 410.070373][ T2648] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000001 [ 410.078538][ T2648] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 410.117099][ T2642] FAULT_INJECTION: forcing a failure. [ 410.117099][ T2642] name failslab, interval 1, probability 0, space 0, times 0 [ 410.130333][ T2642] CPU: 0 PID: 2642 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 410.141866][ T2642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 410.152009][ T2642] Call Trace: [ 410.155341][ T2642] dump_stack_lvl+0x1e2/0x24b [ 410.160433][ T2642] ? bfq_pos_tree_add_move+0x43e/0x43e [ 410.165884][ T2642] ? selinux_kernfs_init_security+0x1a8/0x760 [ 410.172125][ T2642] dump_stack+0x15/0x17 [ 410.176273][ T2642] should_fail+0x3c0/0x510 [ 410.180693][ T2642] ? __kernfs_new_node+0x99/0x6e0 [ 410.185714][ T2642] __should_failslab+0x9f/0xe0 [ 410.190473][ T2642] should_failslab+0x9/0x20 [ 410.194998][ T2642] __kmalloc_track_caller+0x5f/0x350 [ 410.200293][ T2642] kstrdup_const+0x55/0x90 [ 410.204707][ T2642] __kernfs_new_node+0x99/0x6e0 [ 410.209660][ T2642] ? is_module_text_address+0xe1/0x140 [ 410.215637][ T2642] ? kernfs_new_node+0x170/0x170 [ 410.220912][ T2642] ? ptr_to_hashval+0x60/0x60 [ 410.225977][ T2642] ? mutex_lock+0xb2/0x1e0 [ 410.230628][ T2642] ? snprintf+0xd6/0x120 [ 410.235081][ T2642] ? mutex_unlock+0x29/0xf0 [ 410.240105][ T2642] kernfs_new_node+0x97/0x170 [ 410.244873][ T2642] __kernfs_create_file+0x4a/0x270 [ 410.250255][ T2642] cgroup_addrm_files+0xab8/0xfe0 [ 410.255817][ T2642] ? ____kasan_kmalloc+0xdc/0x110 [ 410.261203][ T2642] ? __kasan_kmalloc+0x9/0x10 [ 410.266562][ T2642] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 410.272393][ T2642] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 410.279199][ T2642] ? delete_node+0x759/0x7b0 [ 410.284132][ T2642] ? __kasan_check_read+0x11/0x20 [ 410.289519][ T2642] ? idr_replace+0x1c4/0x230 [ 410.296665][ T2642] ? idr_get_next+0x4b0/0x4b0 [ 410.301353][ T2642] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 410.306810][ T2642] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 410.312473][ T2642] css_populate_dir+0x137/0x370 [ 410.317332][ T2642] cgroup_apply_control_enable+0x8b9/0x12f0 [ 410.323445][ T2642] cgroup_apply_control+0x8e/0x7e0 [ 410.328826][ T2642] ? css_next_child+0x160/0x160 [ 410.334318][ T2642] ? stack_trace_save+0x12d/0x1f0 [ 410.339683][ T2642] ? io_schedule+0x120/0x120 [ 410.344384][ T2642] ? kernfs_fop_write_iter+0x15e/0x410 [ 410.350249][ T2642] ? __kasan_check_write+0x14/0x20 [ 410.355558][ T2642] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 410.361343][ T2642] cgroup_subtree_control_write+0xd19/0x1310 [ 410.367493][ T2642] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 410.373495][ T2642] ? __kasan_check_write+0x14/0x20 [ 410.378613][ T2642] ? _copy_from_iter+0x3fb/0xd60 [ 410.383551][ T2642] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 410.389682][ T2642] cgroup_file_write+0x28e/0x590 [ 410.394673][ T2642] ? cgroup_seqfile_stop+0xc0/0xc0 [ 410.399783][ T2642] ? mutex_trylock+0x180/0x180 [ 410.404548][ T2642] ? __kasan_check_write+0x14/0x20 [ 410.410119][ T2642] kernfs_fop_write_iter+0x2d0/0x410 [ 410.415395][ T2642] ? cgroup_seqfile_stop+0xc0/0xc0 [ 410.420590][ T2642] vfs_write+0xc4a/0xf80 [ 410.424854][ T2642] ? slab_free_freelist_hook+0xcc/0x1a0 [ 410.430397][ T2642] ? kernel_write+0x420/0x420 [ 410.435197][ T2642] ? do_sys_openat2+0x397/0x470 [ 410.440402][ T2642] ? __kasan_check_read+0x11/0x20 [ 410.445509][ T2642] ? __fdget_pos+0x27e/0x310 [ 410.450100][ T2642] ksys_write+0x198/0x2c0 [ 410.454779][ T2642] ? __ia32_sys_read+0x90/0x90 [ 410.460048][ T2642] ? debug_smp_processor_id+0x17/0x20 [ 410.465677][ T2642] __x64_sys_write+0x7b/0x90 [ 410.470356][ T2642] do_syscall_64+0x34/0x70 [ 410.474809][ T2642] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 410.480750][ T2642] RIP: 0033:0x7f48883727a9 [ 410.485644][ T2642] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 410.505646][ T2642] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 410.514063][ T2642] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 410.522860][ T2642] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 410.531288][ T2642] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 410.542426][ T2642] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 410.552995][ T2642] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000000 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 410.562059][ T2642] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 410.607268][ T2647] FAULT_INJECTION: forcing a failure. [ 410.607268][ T2647] name failslab, interval 1, probability 0, space 0, times 0 [ 410.620865][ T2647] CPU: 1 PID: 2647 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 410.632380][ T2647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 410.643203][ T2647] Call Trace: [ 410.646804][ T2647] dump_stack_lvl+0x1e2/0x24b [ 410.651588][ T2647] ? panic+0x7d7/0x7d7 [ 410.656028][ T2647] ? bfq_pos_tree_add_move+0x43e/0x43e [ 410.661764][ T2647] ? selinux_kernfs_init_security+0x1a8/0x760 [ 410.668105][ T2647] dump_stack+0x15/0x17 [ 410.672276][ T2647] should_fail+0x3c0/0x510 [ 410.676786][ T2647] __should_failslab+0x9f/0xe0 [ 410.681813][ T2647] should_failslab+0x9/0x20 [ 410.686583][ T2647] kmem_cache_alloc+0x3f/0x300 [ 410.691343][ T2647] ? __kernfs_new_node+0xdb/0x6e0 [ 410.696361][ T2647] __kernfs_new_node+0xdb/0x6e0 [ 410.701366][ T2647] ? is_module_text_address+0xe1/0x140 [ 410.706823][ T2647] ? kernfs_new_node+0x170/0x170 [ 410.711783][ T2647] ? ptr_to_hashval+0x60/0x60 [ 410.716466][ T2647] ? arch_stack_walk+0xf8/0x140 [ 410.721495][ T2647] ? snprintf+0xd6/0x120 [ 410.725735][ T2647] kernfs_new_node+0x97/0x170 [ 410.730400][ T2647] __kernfs_create_file+0x4a/0x270 [ 410.735506][ T2647] cgroup_addrm_files+0xab8/0xfe0 [ 410.740515][ T2647] ? ____kasan_kmalloc+0xdc/0x110 [ 410.745714][ T2647] ? __kasan_kmalloc+0x9/0x10 [ 410.750508][ T2647] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 410.756047][ T2647] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 410.762268][ T2647] ? delete_node+0x759/0x7b0 [ 410.766945][ T2647] ? __kasan_check_read+0x11/0x20 [ 410.771958][ T2647] ? delete_node+0x759/0x7b0 [ 410.776531][ T2647] ? __kasan_check_write+0x14/0x20 [ 410.781630][ T2647] ? idr_replace+0x1c4/0x230 [ 410.786212][ T2647] ? idr_get_next+0x4b0/0x4b0 [ 410.791212][ T2647] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 410.796814][ T2647] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 410.802348][ T2647] css_populate_dir+0x137/0x370 [ 410.807569][ T2647] cgroup_apply_control_enable+0x8b9/0x12f0 [ 410.813468][ T2647] cgroup_apply_control+0x8e/0x7e0 [ 410.818962][ T2647] ? css_next_child+0x160/0x160 [ 410.823898][ T2647] ? stack_trace_save+0x12d/0x1f0 [ 410.829002][ T2647] ? io_schedule+0x120/0x120 [ 410.833752][ T2647] ? kernfs_fop_write_iter+0x15e/0x410 [ 410.839644][ T2647] ? __kasan_check_write+0x14/0x20 [ 410.844859][ T2647] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 410.850163][ T2647] cgroup_subtree_control_write+0xd19/0x1310 [ 410.856436][ T2647] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 410.862425][ T2647] ? __kasan_check_write+0x14/0x20 [ 410.867767][ T2647] ? _copy_from_iter+0x3fb/0xd60 [ 410.872787][ T2647] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 410.878778][ T2647] cgroup_file_write+0x28e/0x590 [ 410.883845][ T2647] ? cgroup_seqfile_stop+0xc0/0xc0 [ 410.889554][ T2647] ? mutex_trylock+0x180/0x180 [ 410.894427][ T2647] ? __kasan_check_write+0x14/0x20 [ 410.899704][ T2647] kernfs_fop_write_iter+0x2d0/0x410 [ 410.905203][ T2647] ? cgroup_seqfile_stop+0xc0/0xc0 [ 410.910497][ T2647] vfs_write+0xc4a/0xf80 [ 410.914860][ T2647] ? slab_free_freelist_hook+0xcc/0x1a0 [ 410.920681][ T2647] ? kernel_write+0x420/0x420 [ 410.925354][ T2647] ? do_sys_openat2+0x397/0x470 [ 410.930210][ T2647] ? __kasan_check_read+0x11/0x20 [ 410.935327][ T2647] ? __fdget_pos+0x27e/0x310 [ 410.940266][ T2647] ksys_write+0x198/0x2c0 [ 410.945086][ T2647] ? __ia32_sys_read+0x90/0x90 [ 410.949869][ T2647] ? debug_smp_processor_id+0x17/0x20 [ 410.955361][ T2647] __x64_sys_write+0x7b/0x90 [ 410.960028][ T2647] do_syscall_64+0x34/0x70 [ 410.964447][ T2647] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 410.970331][ T2647] RIP: 0033:0x7f48883727a9 [ 410.975366][ T2647] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 410.995428][ T2647] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 411.004094][ T2647] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 411.012760][ T2647] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 411.021393][ T2647] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 411.029780][ T2647] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 411.040961][ T2647] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 411.051501][ T2647] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 411.087104][ T2646] FAULT_INJECTION: forcing a failure. [ 411.087104][ T2646] name failslab, interval 1, probability 0, space 0, times 0 [ 411.100615][ T2646] CPU: 0 PID: 2646 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 411.111213][ T2646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 411.122218][ T2646] Call Trace: [ 411.125679][ T2646] dump_stack_lvl+0x1e2/0x24b [ 411.130641][ T2646] ? panic+0x7d7/0x7d7 [ 411.135373][ T2646] ? arch_stack_walk+0x106/0x140 [ 411.140742][ T2646] ? bfq_pos_tree_add_move+0x43e/0x43e [ 411.146603][ T2646] ? do_syscall_64+0x34/0x70 [ 411.151461][ T2646] dump_stack+0x15/0x17 [ 411.155733][ T2646] should_fail+0x3c0/0x510 [ 411.160486][ T2646] __should_failslab+0x9f/0xe0 [ 411.165974][ T2646] should_failslab+0x9/0x20 [ 411.170582][ T2646] kmem_cache_alloc+0x3f/0x300 [ 411.175501][ T2646] ? __kernfs_new_node+0xdb/0x6e0 [ 411.180621][ T2646] __kernfs_new_node+0xdb/0x6e0 [ 411.185462][ T2646] ? is_module_text_address+0xe1/0x140 [ 411.190923][ T2646] ? kernfs_new_node+0x170/0x170 [ 411.196194][ T2646] ? ptr_to_hashval+0x60/0x60 [ 411.200864][ T2646] ? arch_stack_walk+0xf8/0x140 [ 411.205791][ T2646] ? snprintf+0xd6/0x120 [ 411.210037][ T2646] kernfs_new_node+0x97/0x170 [ 411.214721][ T2646] __kernfs_create_file+0x4a/0x270 [ 411.219881][ T2646] cgroup_addrm_files+0xab8/0xfe0 [ 411.224993][ T2646] ? ____kasan_kmalloc+0xdc/0x110 [ 411.230025][ T2646] ? __kasan_kmalloc+0x9/0x10 [ 411.234722][ T2646] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 411.240269][ T2646] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 411.246518][ T2646] ? delete_node+0x759/0x7b0 [ 411.251331][ T2646] ? __kasan_check_read+0x11/0x20 [ 411.256362][ T2646] ? delete_node+0x759/0x7b0 [ 411.260966][ T2646] ? __kasan_check_write+0x14/0x20 [ 411.266258][ T2646] ? idr_replace+0x1c4/0x230 [ 411.270853][ T2646] ? idr_get_next+0x4b0/0x4b0 [ 411.275540][ T2646] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 411.280857][ T2646] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 411.286148][ T2646] css_populate_dir+0x137/0x370 [ 411.291082][ T2646] cgroup_apply_control_enable+0x8b9/0x12f0 [ 411.297083][ T2646] cgroup_apply_control+0x8e/0x7e0 [ 411.302178][ T2646] ? css_next_child+0x160/0x160 [ 411.308411][ T2646] ? stack_trace_save+0x12d/0x1f0 [ 411.313528][ T2646] ? io_schedule+0x120/0x120 [ 411.318130][ T2646] ? kernfs_fop_write_iter+0x15e/0x410 [ 411.323730][ T2646] ? __kasan_check_write+0x14/0x20 [ 411.328945][ T2646] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 411.334341][ T2646] cgroup_subtree_control_write+0xd19/0x1310 [ 411.340534][ T2646] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 411.346889][ T2646] ? __kasan_check_write+0x14/0x20 [ 411.352165][ T2646] ? _copy_from_iter+0x3fb/0xd60 [ 411.357125][ T2646] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 411.363265][ T2646] cgroup_file_write+0x28e/0x590 [ 411.368206][ T2646] ? cgroup_seqfile_stop+0xc0/0xc0 [ 411.373318][ T2646] ? mutex_trylock+0x180/0x180 [ 411.378262][ T2646] ? __kasan_check_write+0x14/0x20 [ 411.383651][ T2646] kernfs_fop_write_iter+0x2d0/0x410 [ 411.388933][ T2646] ? cgroup_seqfile_stop+0xc0/0xc0 [ 411.394185][ T2646] vfs_write+0xc4a/0xf80 [ 411.398423][ T2646] ? slab_free_freelist_hook+0xcc/0x1a0 [ 411.403968][ T2646] ? kernel_write+0x420/0x420 [ 411.408647][ T2646] ? do_sys_openat2+0x397/0x470 [ 411.413574][ T2646] ? sched_clock+0x3a/0x40 [ 411.417998][ T2646] ? __kasan_check_read+0x11/0x20 [ 411.423134][ T2646] ? __fdget_pos+0x27e/0x310 [ 411.427947][ T2646] ksys_write+0x198/0x2c0 [ 411.432276][ T2646] ? __ia32_sys_read+0x90/0x90 [ 411.437028][ T2646] ? debug_smp_processor_id+0x17/0x20 [ 411.442384][ T2646] __x64_sys_write+0x7b/0x90 [ 411.447151][ T2646] do_syscall_64+0x34/0x70 [ 411.451759][ T2646] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 411.457736][ T2646] RIP: 0033:0x7f48883727a9 [ 411.462271][ T2646] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 411.482649][ T2646] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 411.491250][ T2646] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 411.499212][ T2646] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 411.507211][ T2646] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 411.515448][ T2646] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 411.523592][ T2646] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 411.532793][ T2646] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 411.577326][ T2652] FAULT_INJECTION: forcing a failure. [ 411.577326][ T2652] name failslab, interval 1, probability 0, space 0, times 0 [ 411.590027][ T2652] CPU: 1 PID: 2652 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 411.600653][ T2652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 411.610886][ T2652] Call Trace: [ 411.614371][ T2652] dump_stack_lvl+0x1e2/0x24b [ 411.619043][ T2652] ? panic+0x7d7/0x7d7 [ 411.623585][ T2652] ? bfq_pos_tree_add_move+0x43e/0x43e [ 411.629040][ T2652] ? selinux_kernfs_init_security+0x1a8/0x760 [ 411.635112][ T2652] dump_stack+0x15/0x17 [ 411.639637][ T2652] should_fail+0x3c0/0x510 [ 411.644049][ T2652] __should_failslab+0x9f/0xe0 [ 411.649094][ T2652] should_failslab+0x9/0x20 [ 411.653659][ T2652] kmem_cache_alloc+0x3f/0x300 [ 411.658412][ T2652] ? __kernfs_new_node+0xdb/0x6e0 [ 411.663434][ T2652] __kernfs_new_node+0xdb/0x6e0 [ 411.668291][ T2652] ? is_module_text_address+0xe1/0x140 [ 411.673870][ T2652] ? kernfs_new_node+0x170/0x170 [ 411.678793][ T2652] ? ptr_to_hashval+0x60/0x60 [ 411.683455][ T2652] ? arch_stack_walk+0xf8/0x140 [ 411.688292][ T2652] ? snprintf+0xd6/0x120 [ 411.692620][ T2652] kernfs_new_node+0x97/0x170 [ 411.697541][ T2652] __kernfs_create_file+0x4a/0x270 [ 411.702653][ T2652] cgroup_addrm_files+0xab8/0xfe0 [ 411.707690][ T2652] ? ____kasan_kmalloc+0xdc/0x110 [ 411.712807][ T2652] ? __kasan_kmalloc+0x9/0x10 [ 411.717606][ T2652] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 411.723677][ T2652] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 411.729944][ T2652] ? delete_node+0x759/0x7b0 [ 411.735255][ T2652] ? __kasan_check_read+0x11/0x20 [ 411.740444][ T2652] ? delete_node+0x759/0x7b0 [ 411.745025][ T2652] ? __kasan_check_write+0x14/0x20 [ 411.750304][ T2652] ? idr_replace+0x1c4/0x230 [ 411.754907][ T2652] ? idr_get_next+0x4b0/0x4b0 [ 411.760115][ T2652] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 411.765142][ T2652] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 411.770435][ T2652] css_populate_dir+0x137/0x370 [ 411.775428][ T2652] cgroup_apply_control_enable+0x8b9/0x12f0 [ 411.781345][ T2652] cgroup_apply_control+0x8e/0x7e0 [ 411.786548][ T2652] ? css_next_child+0x160/0x160 [ 411.791579][ T2652] ? stack_trace_save+0x12d/0x1f0 [ 411.796756][ T2652] ? io_schedule+0x120/0x120 [ 411.801357][ T2652] ? kernfs_fop_write_iter+0x15e/0x410 [ 411.807162][ T2652] ? __kasan_check_write+0x14/0x20 [ 411.812597][ T2652] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 411.818374][ T2652] cgroup_subtree_control_write+0xd19/0x1310 [ 411.824546][ T2652] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 411.830633][ T2652] ? __kasan_check_write+0x14/0x20 [ 411.835957][ T2652] ? _copy_from_iter+0x3fb/0xd60 [ 411.841006][ T2652] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 411.847443][ T2652] cgroup_file_write+0x28e/0x590 [ 411.852385][ T2652] ? cgroup_seqfile_stop+0xc0/0xc0 [ 411.857497][ T2652] ? mutex_trylock+0x180/0x180 [ 411.862353][ T2652] ? __kasan_check_write+0x14/0x20 [ 411.867662][ T2652] kernfs_fop_write_iter+0x2d0/0x410 [ 411.873048][ T2652] ? cgroup_seqfile_stop+0xc0/0xc0 [ 411.878239][ T2652] vfs_write+0xc4a/0xf80 [ 411.882694][ T2652] ? slab_free_freelist_hook+0xcc/0x1a0 [ 411.888450][ T2652] ? kernel_write+0x420/0x420 [ 411.893127][ T2652] ? do_sys_openat2+0x397/0x470 [ 411.898245][ T2652] ? __kasan_check_read+0x11/0x20 [ 411.903351][ T2652] ? __fdget_pos+0x27e/0x310 [ 411.907928][ T2652] ksys_write+0x198/0x2c0 [ 411.912240][ T2652] ? __ia32_sys_read+0x90/0x90 [ 411.916993][ T2652] ? debug_smp_processor_id+0x17/0x20 [ 411.922369][ T2652] __x64_sys_write+0x7b/0x90 [ 411.927407][ T2652] do_syscall_64+0x34/0x70 [ 411.931819][ T2652] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 411.940517][ T2652] RIP: 0033:0x7f48883727a9 [ 411.945686][ T2652] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 411.968492][ T2652] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 411.977338][ T2652] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 411.985739][ T2652] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 411.993880][ T2652] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 412.002477][ T2652] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 412.011028][ T2652] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000002 [ 412.019436][ T2652] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 412.057344][ T2649] FAULT_INJECTION: forcing a failure. [ 412.057344][ T2649] name failslab, interval 1, probability 0, space 0, times 0 [ 412.070715][ T2649] CPU: 0 PID: 2649 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 412.081288][ T2649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 412.091588][ T2649] Call Trace: [ 412.094869][ T2649] dump_stack_lvl+0x1e2/0x24b [ 412.099524][ T2649] ? panic+0x7d7/0x7d7 [ 412.103697][ T2649] ? bfq_pos_tree_add_move+0x43e/0x43e [ 412.109169][ T2649] ? selinux_kernfs_init_security+0x1a8/0x760 [ 412.115899][ T2649] dump_stack+0x15/0x17 [ 412.120059][ T2649] should_fail+0x3c0/0x510 [ 412.124481][ T2649] __should_failslab+0x9f/0xe0 [ 412.129508][ T2649] should_failslab+0x9/0x20 [ 412.134183][ T2649] kmem_cache_alloc+0x3f/0x300 [ 412.138929][ T2649] ? __kernfs_new_node+0xdb/0x6e0 [ 412.144111][ T2649] __kernfs_new_node+0xdb/0x6e0 [ 412.149157][ T2649] ? is_module_text_address+0xe1/0x140 [ 412.154618][ T2649] ? kernfs_new_node+0x170/0x170 [ 412.159658][ T2649] ? ptr_to_hashval+0x60/0x60 [ 412.164371][ T2649] ? arch_stack_walk+0xf8/0x140 [ 412.169249][ T2649] ? snprintf+0xd6/0x120 [ 412.173716][ T2649] kernfs_new_node+0x97/0x170 [ 412.178384][ T2649] __kernfs_create_file+0x4a/0x270 [ 412.183481][ T2649] cgroup_addrm_files+0xab8/0xfe0 [ 412.188506][ T2649] ? ____kasan_kmalloc+0xdc/0x110 [ 412.193549][ T2649] ? __kasan_kmalloc+0x9/0x10 [ 412.198222][ T2649] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 412.203907][ T2649] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 412.210053][ T2649] ? delete_node+0x759/0x7b0 [ 412.214663][ T2649] ? __kasan_check_read+0x11/0x20 [ 412.219679][ T2649] ? delete_node+0x759/0x7b0 [ 412.224275][ T2649] ? __kasan_check_write+0x14/0x20 [ 412.229471][ T2649] ? idr_replace+0x1c4/0x230 [ 412.234251][ T2649] ? idr_get_next+0x4b0/0x4b0 [ 412.238932][ T2649] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 412.244111][ T2649] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 412.249296][ T2649] css_populate_dir+0x137/0x370 [ 412.254128][ T2649] cgroup_apply_control_enable+0x8b9/0x12f0 [ 412.260235][ T2649] cgroup_apply_control+0x8e/0x7e0 [ 412.265574][ T2649] ? css_next_child+0x160/0x160 [ 412.270607][ T2649] ? stack_trace_save+0x12d/0x1f0 [ 412.275847][ T2649] ? io_schedule+0x120/0x120 [ 412.280522][ T2649] ? kernfs_fop_write_iter+0x15e/0x410 [ 412.286091][ T2649] ? __kasan_check_write+0x14/0x20 [ 412.291279][ T2649] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 412.297329][ T2649] cgroup_subtree_control_write+0xd19/0x1310 [ 412.303562][ T2649] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 412.309735][ T2649] ? __kasan_check_write+0x14/0x20 [ 412.315072][ T2649] ? _copy_from_iter+0x3fb/0xd60 [ 412.320025][ T2649] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 412.326115][ T2649] cgroup_file_write+0x28e/0x590 [ 412.331344][ T2649] ? cgroup_seqfile_stop+0xc0/0xc0 [ 412.336601][ T2649] ? mutex_trylock+0x180/0x180 [ 412.341452][ T2649] ? __kasan_check_write+0x14/0x20 [ 412.346931][ T2649] kernfs_fop_write_iter+0x2d0/0x410 [ 412.352415][ T2649] ? cgroup_seqfile_stop+0xc0/0xc0 [ 412.358319][ T2649] vfs_write+0xc4a/0xf80 [ 412.362557][ T2649] ? slab_free_freelist_hook+0xcc/0x1a0 [ 412.368271][ T2649] ? kernel_write+0x420/0x420 [ 412.372926][ T2649] ? do_sys_openat2+0x397/0x470 [ 412.377753][ T2649] ? __kasan_check_read+0x11/0x20 [ 412.382754][ T2649] ? __fdget_pos+0x27e/0x310 [ 412.387411][ T2649] ksys_write+0x198/0x2c0 [ 412.391893][ T2649] ? __ia32_sys_read+0x90/0x90 [ 412.396742][ T2649] ? debug_smp_processor_id+0x17/0x20 [ 412.402097][ T2649] __x64_sys_write+0x7b/0x90 [ 412.406928][ T2649] do_syscall_64+0x34/0x70 [ 412.411565][ T2649] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 412.417434][ T2649] RIP: 0033:0x7f48883727a9 [ 412.421842][ T2649] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 412.441597][ T2649] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 412.450095][ T2649] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 412.458161][ T2649] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 412.466469][ T2649] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 412.474519][ T2649] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 412.482821][ T2649] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000002 [ 412.492391][ T2649] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 412.527027][ T2650] FAULT_INJECTION: forcing a failure. [ 412.527027][ T2650] name failslab, interval 1, probability 0, space 0, times 0 [ 412.540109][ T2650] CPU: 1 PID: 2650 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 412.550875][ T2650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 412.561304][ T2650] Call Trace: [ 412.564610][ T2650] dump_stack_lvl+0x1e2/0x24b [ 412.569307][ T2650] ? bfq_pos_tree_add_move+0x43e/0x43e [ 412.574774][ T2650] ? selinux_kernfs_init_security+0x1a8/0x760 [ 412.580835][ T2650] dump_stack+0x15/0x17 [ 412.584986][ T2650] should_fail+0x3c0/0x510 [ 412.589405][ T2650] ? __kernfs_new_node+0x99/0x6e0 [ 412.594417][ T2650] __should_failslab+0x9f/0xe0 [ 412.599178][ T2650] should_failslab+0x9/0x20 [ 412.603752][ T2650] __kmalloc_track_caller+0x5f/0x350 [ 412.609015][ T2650] kstrdup_const+0x55/0x90 [ 412.613417][ T2650] __kernfs_new_node+0x99/0x6e0 [ 412.618701][ T2650] ? is_module_text_address+0xe1/0x140 [ 412.624268][ T2650] ? kernfs_new_node+0x170/0x170 [ 412.629214][ T2650] ? ptr_to_hashval+0x60/0x60 [ 412.634007][ T2650] ? mutex_lock+0xb2/0x1e0 [ 412.638540][ T2650] ? snprintf+0xd6/0x120 [ 412.642936][ T2650] ? mutex_unlock+0x29/0xf0 [ 412.647717][ T2650] kernfs_new_node+0x97/0x170 [ 412.652404][ T2650] __kernfs_create_file+0x4a/0x270 [ 412.657788][ T2650] cgroup_addrm_files+0xab8/0xfe0 [ 412.662837][ T2650] ? ____kasan_kmalloc+0xdc/0x110 [ 412.667973][ T2650] ? __kasan_kmalloc+0x9/0x10 [ 412.672907][ T2650] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 412.678567][ T2650] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 412.685162][ T2650] ? delete_node+0x759/0x7b0 [ 412.690891][ T2650] ? __kasan_check_read+0x11/0x20 [ 412.696021][ T2650] ? idr_replace+0x1c4/0x230 [ 412.700743][ T2650] ? idr_get_next+0x4b0/0x4b0 [ 412.705413][ T2650] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 412.710455][ T2650] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 412.716113][ T2650] css_populate_dir+0x137/0x370 [ 412.721058][ T2650] cgroup_apply_control_enable+0x8b9/0x12f0 [ 412.726943][ T2650] cgroup_apply_control+0x8e/0x7e0 [ 412.732171][ T2650] ? css_next_child+0x160/0x160 [ 412.737106][ T2650] ? stack_trace_save+0x12d/0x1f0 [ 412.742217][ T2650] ? io_schedule+0x120/0x120 [ 412.746825][ T2650] ? kernfs_fop_write_iter+0x15e/0x410 [ 412.752266][ T2650] ? __kasan_check_write+0x14/0x20 [ 412.757363][ T2650] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 412.762652][ T2650] cgroup_subtree_control_write+0xd19/0x1310 [ 412.768969][ T2650] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 412.775019][ T2650] ? __kasan_check_write+0x14/0x20 [ 412.780106][ T2650] ? _copy_from_iter+0x3fb/0xd60 [ 412.785020][ T2650] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 412.791009][ T2650] cgroup_file_write+0x28e/0x590 [ 412.795952][ T2650] ? cgroup_seqfile_stop+0xc0/0xc0 [ 412.801049][ T2650] ? mutex_trylock+0x180/0x180 [ 412.805794][ T2650] ? __kasan_check_write+0x14/0x20 [ 412.810925][ T2650] kernfs_fop_write_iter+0x2d0/0x410 [ 412.816351][ T2650] ? cgroup_seqfile_stop+0xc0/0xc0 [ 412.821519][ T2650] vfs_write+0xc4a/0xf80 [ 412.825762][ T2650] ? slab_free_freelist_hook+0xcc/0x1a0 [ 412.831546][ T2650] ? kernel_write+0x420/0x420 [ 412.836247][ T2650] ? do_sys_openat2+0x397/0x470 [ 412.841355][ T2650] ? __kasan_check_read+0x11/0x20 [ 412.846379][ T2650] ? __fdget_pos+0x27e/0x310 [ 412.851243][ T2650] ksys_write+0x198/0x2c0 [ 412.855581][ T2650] ? __ia32_sys_read+0x90/0x90 [ 412.860519][ T2650] ? debug_smp_processor_id+0x17/0x20 [ 412.865978][ T2650] __x64_sys_write+0x7b/0x90 [ 412.870561][ T2650] do_syscall_64+0x34/0x70 [ 412.874967][ T2650] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 412.881574][ T2650] RIP: 0033:0x7f48883727a9 [ 412.885983][ T2650] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 412.905575][ T2650] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 412.914312][ T2650] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 412.922385][ T2650] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 412.930457][ T2650] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 412.938474][ T2650] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 412.946439][ T2650] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000001 [ 412.954734][ T2650] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 413.007428][ T2654] FAULT_INJECTION: forcing a failure. [ 413.007428][ T2654] name failslab, interval 1, probability 0, space 0, times 0 [ 413.020363][ T2654] CPU: 0 PID: 2654 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 413.030845][ T2654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 413.040912][ T2654] Call Trace: [ 413.044194][ T2654] dump_stack_lvl+0x1e2/0x24b [ 413.048855][ T2654] ? bfq_pos_tree_add_move+0x43e/0x43e [ 413.054487][ T2654] ? selinux_kernfs_init_security+0x1a8/0x760 [ 413.060560][ T2654] dump_stack+0x15/0x17 [ 413.064813][ T2654] should_fail+0x3c0/0x510 [ 413.069227][ T2654] ? __kernfs_new_node+0x99/0x6e0 [ 413.074423][ T2654] __should_failslab+0x9f/0xe0 [ 413.079182][ T2654] should_failslab+0x9/0x20 [ 413.083774][ T2654] __kmalloc_track_caller+0x5f/0x350 [ 413.089155][ T2654] kstrdup_const+0x55/0x90 [ 413.093575][ T2654] __kernfs_new_node+0x99/0x6e0 [ 413.098635][ T2654] ? is_module_text_address+0xe1/0x140 [ 413.104104][ T2654] ? kernfs_new_node+0x170/0x170 [ 413.109048][ T2654] ? ptr_to_hashval+0x60/0x60 [ 413.113862][ T2654] ? mutex_lock+0xb2/0x1e0 [ 413.118271][ T2654] ? snprintf+0xd6/0x120 [ 413.122960][ T2654] ? mutex_unlock+0x29/0xf0 [ 413.127481][ T2654] kernfs_new_node+0x97/0x170 [ 413.132357][ T2654] __kernfs_create_file+0x4a/0x270 [ 413.137475][ T2654] cgroup_addrm_files+0xab8/0xfe0 [ 413.142672][ T2654] ? ____kasan_kmalloc+0xdc/0x110 [ 413.147716][ T2654] ? __kasan_kmalloc+0x9/0x10 [ 413.152378][ T2654] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 413.157994][ T2654] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 413.164230][ T2654] ? delete_node+0x759/0x7b0 [ 413.168806][ T2654] ? __kasan_check_read+0x11/0x20 [ 413.173835][ T2654] ? idr_replace+0x1c4/0x230 [ 413.178496][ T2654] ? idr_get_next+0x4b0/0x4b0 [ 413.183154][ T2654] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 413.188157][ T2654] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 413.193366][ T2654] css_populate_dir+0x137/0x370 [ 413.198274][ T2654] cgroup_apply_control_enable+0x8b9/0x12f0 [ 413.204336][ T2654] cgroup_apply_control+0x8e/0x7e0 [ 413.209439][ T2654] ? css_next_child+0x160/0x160 [ 413.214482][ T2654] ? stack_trace_save+0x12d/0x1f0 [ 413.219850][ T2654] ? io_schedule+0x120/0x120 [ 413.224432][ T2654] ? kernfs_fop_write_iter+0x15e/0x410 [ 413.230746][ T2654] ? __kasan_check_write+0x14/0x20 [ 413.235844][ T2654] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 413.241354][ T2654] cgroup_subtree_control_write+0xd19/0x1310 [ 413.252964][ T2654] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 413.259042][ T2654] ? __kasan_check_write+0x14/0x20 [ 413.264400][ T2654] ? _copy_from_iter+0x3fb/0xd60 [ 413.269346][ T2654] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 413.275831][ T2654] cgroup_file_write+0x28e/0x590 [ 413.280855][ T2654] ? cgroup_seqfile_stop+0xc0/0xc0 [ 413.285950][ T2654] ? mutex_trylock+0x180/0x180 [ 413.290952][ T2654] ? __kasan_check_write+0x14/0x20 [ 413.296434][ T2654] kernfs_fop_write_iter+0x2d0/0x410 [ 413.301713][ T2654] ? cgroup_seqfile_stop+0xc0/0xc0 [ 413.306820][ T2654] vfs_write+0xc4a/0xf80 [ 413.311376][ T2654] ? slab_free_freelist_hook+0xcc/0x1a0 [ 413.317033][ T2654] ? kernel_write+0x420/0x420 [ 413.322120][ T2654] ? do_sys_openat2+0x397/0x470 [ 413.328058][ T2654] ? __kasan_check_read+0x11/0x20 [ 413.333376][ T2654] ? __fdget_pos+0x27e/0x310 [ 413.338275][ T2654] ksys_write+0x198/0x2c0 [ 413.342616][ T2654] ? kvm_sched_clock_read+0x18/0x40 [ 413.348009][ T2654] ? __ia32_sys_read+0x90/0x90 [ 413.353052][ T2654] ? debug_smp_processor_id+0x17/0x20 [ 413.358535][ T2654] __x64_sys_write+0x7b/0x90 [ 413.363534][ T2654] do_syscall_64+0x34/0x70 [ 413.368280][ T2654] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 413.374406][ T2654] RIP: 0033:0x7f48883727a9 [ 413.378815][ T2654] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 413.400086][ T2654] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 413.408680][ T2654] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 413.416745][ T2654] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 413.425407][ T2654] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 413.433483][ T2654] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 413.441490][ T2654] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000003 [ 413.449595][ T2654] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 413.497112][ T2643] FAULT_INJECTION: forcing a failure. [ 413.497112][ T2643] name failslab, interval 1, probability 0, space 0, times 0 [ 413.510336][ T2643] CPU: 1 PID: 2643 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 413.521320][ T2643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 413.532884][ T2643] Call Trace: [ 413.537212][ T2643] dump_stack_lvl+0x1e2/0x24b [ 413.543159][ T2643] ? bfq_pos_tree_add_move+0x43e/0x43e [ 413.549147][ T2643] ? selinux_kernfs_init_security+0x1a8/0x760 [ 413.556391][ T2643] dump_stack+0x15/0x17 [ 413.561293][ T2643] should_fail+0x3c0/0x510 [ 413.565739][ T2643] ? __kernfs_new_node+0x99/0x6e0 [ 413.570841][ T2643] __should_failslab+0x9f/0xe0 [ 413.575639][ T2643] should_failslab+0x9/0x20 [ 413.580146][ T2643] __kmalloc_track_caller+0x5f/0x350 [ 413.585452][ T2643] kstrdup_const+0x55/0x90 [ 413.589887][ T2643] __kernfs_new_node+0x99/0x6e0 [ 413.594741][ T2643] ? is_module_text_address+0xe1/0x140 [ 413.600199][ T2643] ? kernfs_new_node+0x170/0x170 [ 413.605127][ T2643] ? ptr_to_hashval+0x60/0x60 [ 413.609893][ T2643] ? mutex_lock+0xb2/0x1e0 [ 413.614307][ T2643] ? snprintf+0xd6/0x120 [ 413.618640][ T2643] ? mutex_unlock+0x29/0xf0 [ 413.623134][ T2643] kernfs_new_node+0x97/0x170 [ 413.627974][ T2643] __kernfs_create_file+0x4a/0x270 [ 413.633188][ T2643] cgroup_addrm_files+0xab8/0xfe0 [ 413.638315][ T2643] ? ____kasan_kmalloc+0xdc/0x110 [ 413.643339][ T2643] ? __kasan_kmalloc+0x9/0x10 [ 413.648008][ T2643] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 413.653810][ T2643] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 413.660041][ T2643] ? delete_node+0x759/0x7b0 [ 413.664644][ T2643] ? __kasan_check_read+0x11/0x20 [ 413.670802][ T2643] ? idr_replace+0x1c4/0x230 [ 413.675483][ T2643] ? idr_get_next+0x4b0/0x4b0 [ 413.680167][ T2643] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 413.685440][ T2643] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 413.690810][ T2643] css_populate_dir+0x137/0x370 [ 413.695840][ T2643] cgroup_apply_control_enable+0x8b9/0x12f0 [ 413.701962][ T2643] cgroup_apply_control+0x8e/0x7e0 [ 413.707552][ T2643] ? css_next_child+0x160/0x160 [ 413.712634][ T2643] ? stack_trace_save+0x12d/0x1f0 [ 413.718045][ T2643] ? io_schedule+0x120/0x120 [ 413.722636][ T2643] ? kernfs_fop_write_iter+0x15e/0x410 [ 413.728369][ T2643] ? __kasan_check_write+0x14/0x20 [ 413.733488][ T2643] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 413.739171][ T2643] cgroup_subtree_control_write+0xd19/0x1310 [ 413.745404][ T2643] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 413.751571][ T2643] ? __kasan_check_write+0x14/0x20 [ 413.756864][ T2643] ? _copy_from_iter+0x3fb/0xd60 [ 413.761814][ T2643] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 413.768616][ T2643] cgroup_file_write+0x28e/0x590 [ 413.773832][ T2643] ? cgroup_seqfile_stop+0xc0/0xc0 [ 413.778968][ T2643] ? mutex_trylock+0x180/0x180 [ 413.784209][ T2643] ? __kasan_check_write+0x14/0x20 [ 413.789550][ T2643] kernfs_fop_write_iter+0x2d0/0x410 [ 413.794943][ T2643] ? cgroup_seqfile_stop+0xc0/0xc0 [ 413.800262][ T2643] vfs_write+0xc4a/0xf80 [ 413.804670][ T2643] ? slab_free_freelist_hook+0xcc/0x1a0 [ 413.810203][ T2643] ? kernel_write+0x420/0x420 [ 413.814874][ T2643] ? do_sys_openat2+0x397/0x470 [ 413.819732][ T2643] ? __kasan_check_read+0x11/0x20 [ 413.824788][ T2643] ? __fdget_pos+0x27e/0x310 [ 413.829396][ T2643] ksys_write+0x198/0x2c0 [ 413.833788][ T2643] ? __ia32_sys_read+0x90/0x90 [ 413.838838][ T2643] ? debug_smp_processor_id+0x17/0x20 [ 413.844226][ T2643] __x64_sys_write+0x7b/0x90 [ 413.848813][ T2643] do_syscall_64+0x34/0x70 [ 413.854430][ T2643] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 413.860304][ T2643] RIP: 0033:0x7f48883727a9 [ 413.864721][ T2643] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 413.885616][ T2643] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 413.894018][ T2643] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 413.902595][ T2643] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 413.910565][ T2643] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 413.918532][ T2643] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 413.926614][ T2643] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000001 [ 413.934700][ T2643] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 413.977426][ T2657] FAULT_INJECTION: forcing a failure. [ 413.977426][ T2657] name failslab, interval 1, probability 0, space 0, times 0 [ 413.990414][ T2657] CPU: 1 PID: 2657 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 414.000836][ T2657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 414.010983][ T2657] Call Trace: [ 414.014266][ T2657] dump_stack_lvl+0x1e2/0x24b [ 414.018930][ T2657] ? bfq_pos_tree_add_move+0x43e/0x43e [ 414.024373][ T2657] ? selinux_kernfs_init_security+0x1a8/0x760 [ 414.030422][ T2657] dump_stack+0x15/0x17 [ 414.034617][ T2657] should_fail+0x3c0/0x510 [ 414.039147][ T2657] ? __kernfs_new_node+0x99/0x6e0 [ 414.045046][ T2657] __should_failslab+0x9f/0xe0 [ 414.049813][ T2657] should_failslab+0x9/0x20 [ 414.054481][ T2657] __kmalloc_track_caller+0x5f/0x350 [ 414.061504][ T2657] kstrdup_const+0x55/0x90 [ 414.066039][ T2657] __kernfs_new_node+0x99/0x6e0 [ 414.071516][ T2657] ? is_module_text_address+0xe1/0x140 [ 414.077007][ T2657] ? kernfs_new_node+0x170/0x170 [ 414.082038][ T2657] ? ptr_to_hashval+0x60/0x60 [ 414.086804][ T2657] ? mutex_lock+0xb2/0x1e0 [ 414.091563][ T2657] ? snprintf+0xd6/0x120 [ 414.096040][ T2657] ? mutex_unlock+0x29/0xf0 [ 414.102634][ T2657] kernfs_new_node+0x97/0x170 [ 414.107416][ T2657] __kernfs_create_file+0x4a/0x270 [ 414.113082][ T2657] cgroup_addrm_files+0xab8/0xfe0 [ 414.118104][ T2657] ? ____kasan_kmalloc+0xdc/0x110 [ 414.123580][ T2657] ? __kasan_kmalloc+0x9/0x10 [ 414.129169][ T2657] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 414.135909][ T2657] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 414.142340][ T2657] ? delete_node+0x759/0x7b0 [ 414.147108][ T2657] ? __kasan_check_read+0x11/0x20 [ 414.152777][ T2657] ? idr_replace+0x1c4/0x230 [ 414.157629][ T2657] ? idr_get_next+0x4b0/0x4b0 [ 414.162840][ T2657] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 414.168147][ T2657] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 414.173583][ T2657] css_populate_dir+0x137/0x370 [ 414.178534][ T2657] cgroup_apply_control_enable+0x8b9/0x12f0 [ 414.185423][ T2657] cgroup_apply_control+0x8e/0x7e0 [ 414.190541][ T2657] ? css_next_child+0x160/0x160 [ 414.195373][ T2657] ? stack_trace_save+0x12d/0x1f0 [ 414.200397][ T2657] ? io_schedule+0x120/0x120 [ 414.205242][ T2657] ? kernfs_fop_write_iter+0x15e/0x410 [ 414.211969][ T2657] ? __kasan_check_write+0x14/0x20 [ 414.217174][ T2657] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 414.222544][ T2657] cgroup_subtree_control_write+0xd19/0x1310 [ 414.228667][ T2657] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 414.234739][ T2657] ? __kasan_check_write+0x14/0x20 [ 414.239977][ T2657] ? _copy_from_iter+0x3fb/0xd60 [ 414.245183][ T2657] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 414.251368][ T2657] cgroup_file_write+0x28e/0x590 [ 414.256696][ T2657] ? cgroup_seqfile_stop+0xc0/0xc0 [ 414.261812][ T2657] ? mutex_trylock+0x180/0x180 [ 414.266762][ T2657] ? __kasan_check_write+0x14/0x20 [ 414.272128][ T2657] kernfs_fop_write_iter+0x2d0/0x410 [ 414.277611][ T2657] ? cgroup_seqfile_stop+0xc0/0xc0 [ 414.282720][ T2657] vfs_write+0xc4a/0xf80 [ 414.287167][ T2657] ? slab_free_freelist_hook+0xcc/0x1a0 [ 414.292729][ T2657] ? kernel_write+0x420/0x420 [ 414.297394][ T2657] ? do_sys_openat2+0x397/0x470 [ 414.302261][ T2657] ? __kasan_check_read+0x11/0x20 [ 414.307407][ T2657] ? __fdget_pos+0x27e/0x310 [ 414.312324][ T2657] ksys_write+0x198/0x2c0 [ 414.316846][ T2657] ? __ia32_sys_read+0x90/0x90 [ 414.321703][ T2657] ? debug_smp_processor_id+0x17/0x20 [ 414.327167][ T2657] __x64_sys_write+0x7b/0x90 [ 414.331845][ T2657] do_syscall_64+0x34/0x70 [ 414.336625][ T2657] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 414.342618][ T2657] RIP: 0033:0x7f48883727a9 [ 414.347125][ T2657] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 414.367196][ T2657] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 414.376302][ T2657] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 414.384648][ T2657] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 414.393204][ T2657] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 414.402212][ T2657] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 414.410257][ T2657] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000002 [ 414.418436][ T2657] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 414.457276][ T2659] FAULT_INJECTION: forcing a failure. [ 414.457276][ T2659] name failslab, interval 1, probability 0, space 0, times 0 [ 414.470041][ T2659] CPU: 1 PID: 2659 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 414.480627][ T2659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 414.490789][ T2659] Call Trace: [ 414.494077][ T2659] dump_stack_lvl+0x1e2/0x24b [ 414.498785][ T2659] ? bfq_pos_tree_add_move+0x43e/0x43e [ 414.504374][ T2659] ? stack_trace_save+0x1f0/0x1f0 [ 414.509417][ T2659] ? arch_stack_walk+0x106/0x140 [ 414.514428][ T2659] dump_stack+0x15/0x17 [ 414.518573][ T2659] should_fail+0x3c0/0x510 [ 414.523343][ T2659] ? __kernfs_new_node+0x99/0x6e0 [ 414.528568][ T2659] __should_failslab+0x9f/0xe0 [ 414.533549][ T2659] should_failslab+0x9/0x20 [ 414.538781][ T2659] __kmalloc_track_caller+0x5f/0x350 [ 414.544069][ T2659] kstrdup_const+0x55/0x90 [ 414.548490][ T2659] __kernfs_new_node+0x99/0x6e0 [ 414.553327][ T2659] ? is_module_text_address+0xe1/0x140 [ 414.558938][ T2659] ? kernfs_new_node+0x170/0x170 [ 414.563856][ T2659] ? ptr_to_hashval+0x60/0x60 [ 414.568519][ T2659] ? arch_stack_walk+0xf8/0x140 [ 414.573435][ T2659] ? snprintf+0xd6/0x120 [ 414.577668][ T2659] kernfs_new_node+0x97/0x170 [ 414.582325][ T2659] __kernfs_create_file+0x4a/0x270 [ 414.587425][ T2659] cgroup_addrm_files+0xab8/0xfe0 [ 414.592430][ T2659] ? ____kasan_kmalloc+0xdc/0x110 [ 414.597530][ T2659] ? __kasan_kmalloc+0x9/0x10 [ 414.602182][ T2659] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 414.607705][ T2659] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 414.613833][ T2659] ? delete_node+0x759/0x7b0 [ 414.618401][ T2659] ? __kasan_check_read+0x11/0x20 [ 414.623488][ T2659] ? delete_node+0x759/0x7b0 [ 414.628057][ T2659] ? __kasan_check_write+0x14/0x20 [ 414.633150][ T2659] ? idr_replace+0x1c4/0x230 [ 414.637717][ T2659] ? idr_get_next+0x4b0/0x4b0 [ 414.642664][ T2659] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 414.647665][ T2659] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 414.652930][ T2659] css_populate_dir+0x137/0x370 [ 414.657945][ T2659] cgroup_apply_control_enable+0x8b9/0x12f0 [ 414.663905][ T2659] cgroup_apply_control+0x8e/0x7e0 [ 414.669000][ T2659] ? css_next_child+0x160/0x160 [ 414.674000][ T2659] ? stack_trace_save+0x12d/0x1f0 [ 414.678999][ T2659] ? io_schedule+0x120/0x120 [ 414.683579][ T2659] ? kernfs_fop_write_iter+0x15e/0x410 [ 414.689016][ T2659] ? __kasan_check_write+0x14/0x20 [ 414.694228][ T2659] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 414.699603][ T2659] cgroup_subtree_control_write+0xd19/0x1310 [ 414.705917][ T2659] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 414.711965][ T2659] ? __kasan_check_write+0x14/0x20 [ 414.717324][ T2659] ? _copy_from_iter+0x3fb/0xd60 [ 414.722317][ T2659] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 414.728293][ T2659] cgroup_file_write+0x28e/0x590 [ 414.733601][ T2659] ? cgroup_seqfile_stop+0xc0/0xc0 [ 414.738700][ T2659] ? mutex_trylock+0x180/0x180 [ 414.743464][ T2659] ? __kasan_check_write+0x14/0x20 [ 414.748584][ T2659] kernfs_fop_write_iter+0x2d0/0x410 [ 414.753947][ T2659] ? cgroup_seqfile_stop+0xc0/0xc0 [ 414.759211][ T2659] vfs_write+0xc4a/0xf80 [ 414.763435][ T2659] ? slab_free_freelist_hook+0xcc/0x1a0 [ 414.769042][ T2659] ? kernel_write+0x420/0x420 [ 414.773695][ T2659] ? do_sys_openat2+0x397/0x470 [ 414.778550][ T2659] ? __kasan_check_read+0x11/0x20 [ 414.783551][ T2659] ? __fdget_pos+0x27e/0x310 [ 414.788293][ T2659] ksys_write+0x198/0x2c0 [ 414.792900][ T2659] ? __ia32_sys_read+0x90/0x90 [ 414.797660][ T2659] ? debug_smp_processor_id+0x17/0x20 [ 414.803062][ T2659] __x64_sys_write+0x7b/0x90 [ 414.807632][ T2659] do_syscall_64+0x34/0x70 [ 414.812378][ T2659] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 414.818542][ T2659] RIP: 0033:0x7f48883727a9 [ 414.823730][ T2659] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 414.843687][ T2659] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 414.852080][ T2659] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 414.860030][ T2659] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 414.868089][ T2659] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 414.876219][ T2659] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 414.884182][ T2659] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000003 [ 414.892396][ T2659] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 414.927246][ T2660] FAULT_INJECTION: forcing a failure. [ 414.927246][ T2660] name failslab, interval 1, probability 0, space 0, times 0 [ 414.940379][ T2660] CPU: 1 PID: 2660 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 414.950779][ T2660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 414.961089][ T2660] Call Trace: [ 414.964671][ T2660] dump_stack_lvl+0x1e2/0x24b [ 414.969346][ T2660] ? bfq_pos_tree_add_move+0x43e/0x43e [ 414.974806][ T2660] ? selinux_kernfs_init_security+0x1a8/0x760 [ 414.980936][ T2660] dump_stack+0x15/0x17 [ 414.985167][ T2660] should_fail+0x3c0/0x510 [ 414.989719][ T2660] ? __kernfs_new_node+0x99/0x6e0 [ 414.995055][ T2660] __should_failslab+0x9f/0xe0 [ 414.999911][ T2660] should_failslab+0x9/0x20 [ 415.004403][ T2660] __kmalloc_track_caller+0x5f/0x350 [ 415.009731][ T2660] kstrdup_const+0x55/0x90 [ 415.014411][ T2660] __kernfs_new_node+0x99/0x6e0 [ 415.019263][ T2660] ? is_module_text_address+0xe1/0x140 [ 415.024721][ T2660] ? kernfs_new_node+0x170/0x170 [ 415.029851][ T2660] ? ptr_to_hashval+0x60/0x60 [ 415.034608][ T2660] ? mutex_lock+0xb2/0x1e0 [ 415.047083][ T2660] ? snprintf+0xd6/0x120 [ 415.051406][ T2660] ? mutex_unlock+0x29/0xf0 [ 415.056004][ T2660] kernfs_new_node+0x97/0x170 [ 415.060959][ T2660] __kernfs_create_file+0x4a/0x270 [ 415.066452][ T2660] cgroup_addrm_files+0xab8/0xfe0 [ 415.071658][ T2660] ? ____kasan_kmalloc+0xdc/0x110 [ 415.076839][ T2660] ? __kasan_kmalloc+0x9/0x10 [ 415.081660][ T2660] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 415.087701][ T2660] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 415.094778][ T2660] ? delete_node+0x759/0x7b0 [ 415.099511][ T2660] ? __kasan_check_read+0x11/0x20 [ 415.104951][ T2660] ? idr_replace+0x1c4/0x230 [ 415.109902][ T2660] ? idr_get_next+0x4b0/0x4b0 [ 415.115001][ T2660] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 415.120411][ T2660] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 415.125608][ T2660] css_populate_dir+0x137/0x370 [ 415.130800][ T2660] cgroup_apply_control_enable+0x8b9/0x12f0 [ 415.137098][ T2660] cgroup_apply_control+0x8e/0x7e0 [ 415.142844][ T2660] ? css_next_child+0x160/0x160 [ 415.148262][ T2660] ? stack_trace_save+0x12d/0x1f0 [ 415.153662][ T2660] ? io_schedule+0x120/0x120 [ 415.159436][ T2660] ? kernfs_fop_write_iter+0x15e/0x410 [ 415.164884][ T2660] ? __kasan_check_write+0x14/0x20 [ 415.170102][ T2660] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 415.176177][ T2660] cgroup_subtree_control_write+0xd19/0x1310 [ 415.182912][ T2660] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 415.189992][ T2660] ? __kasan_check_write+0x14/0x20 [ 415.196353][ T2660] ? _copy_from_iter+0x3fb/0xd60 [ 415.201374][ T2660] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 415.208249][ T2660] cgroup_file_write+0x28e/0x590 [ 415.213923][ T2660] ? cgroup_seqfile_stop+0xc0/0xc0 [ 415.219471][ T2660] ? mutex_trylock+0x180/0x180 [ 415.224699][ T2660] ? __kasan_check_write+0x14/0x20 [ 415.229812][ T2660] kernfs_fop_write_iter+0x2d0/0x410 [ 415.235589][ T2660] ? cgroup_seqfile_stop+0xc0/0xc0 [ 415.241282][ T2660] vfs_write+0xc4a/0xf80 [ 415.246198][ T2660] ? slab_free_freelist_hook+0xcc/0x1a0 [ 415.252620][ T2660] ? kernel_write+0x420/0x420 [ 415.257593][ T2660] ? do_sys_openat2+0x397/0x470 [ 415.262446][ T2660] ? __kasan_check_read+0x11/0x20 [ 415.267495][ T2660] ? __fdget_pos+0x27e/0x310 [ 415.272167][ T2660] ksys_write+0x198/0x2c0 [ 415.276730][ T2660] ? __ia32_sys_read+0x90/0x90 [ 415.281800][ T2660] ? debug_smp_processor_id+0x17/0x20 [ 415.287701][ T2660] __x64_sys_write+0x7b/0x90 [ 415.292557][ T2660] do_syscall_64+0x34/0x70 [ 415.297115][ T2660] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 415.304099][ T2660] RIP: 0033:0x7f48883727a9 [ 415.309264][ T2660] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 415.330354][ T2660] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 415.339301][ T2660] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 415.348558][ T2660] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 415.356649][ T2660] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 415.365147][ T2660] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 415.373107][ T2660] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000004 [ 415.381560][ T2660] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 415.427843][ T2655] FAULT_INJECTION: forcing a failure. [ 415.427843][ T2655] name failslab, interval 1, probability 0, space 0, times 0 [ 415.441106][ T2655] CPU: 1 PID: 2655 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 415.451510][ T2655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 415.461916][ T2655] Call Trace: [ 415.465219][ T2655] dump_stack_lvl+0x1e2/0x24b [ 415.469916][ T2655] ? panic+0x7d7/0x7d7 [ 415.474007][ T2655] ? bfq_pos_tree_add_move+0x43e/0x43e [ 415.479686][ T2655] ? selinux_kernfs_init_security+0x1a8/0x760 [ 415.485933][ T2655] dump_stack+0x15/0x17 [ 415.490071][ T2655] should_fail+0x3c0/0x510 [ 415.494475][ T2655] __should_failslab+0x9f/0xe0 [ 415.499628][ T2655] should_failslab+0x9/0x20 [ 415.504395][ T2655] kmem_cache_alloc+0x3f/0x300 [ 415.509228][ T2655] ? __kernfs_new_node+0xdb/0x6e0 [ 415.514423][ T2655] __kernfs_new_node+0xdb/0x6e0 [ 415.519262][ T2655] ? is_module_text_address+0xe1/0x140 [ 415.524725][ T2655] ? kernfs_new_node+0x170/0x170 [ 415.529843][ T2655] ? ptr_to_hashval+0x60/0x60 [ 415.535123][ T2655] ? arch_stack_walk+0xf8/0x140 [ 415.539964][ T2655] ? snprintf+0xd6/0x120 [ 415.544916][ T2655] kernfs_new_node+0x97/0x170 [ 415.549862][ T2655] __kernfs_create_file+0x4a/0x270 [ 415.555334][ T2655] cgroup_addrm_files+0xab8/0xfe0 [ 415.560979][ T2655] ? ____kasan_kmalloc+0xdc/0x110 [ 415.566782][ T2655] ? __kasan_kmalloc+0x9/0x10 [ 415.571660][ T2655] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 415.577730][ T2655] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 415.584040][ T2655] ? delete_node+0x759/0x7b0 [ 415.588608][ T2655] ? __kasan_check_read+0x11/0x20 [ 415.593632][ T2655] ? delete_node+0x759/0x7b0 [ 415.598218][ T2655] ? __kasan_check_write+0x14/0x20 [ 415.603337][ T2655] ? idr_replace+0x1c4/0x230 [ 415.607920][ T2655] ? idr_get_next+0x4b0/0x4b0 [ 415.612676][ T2655] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 415.617675][ T2655] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 415.622936][ T2655] css_populate_dir+0x137/0x370 [ 415.627961][ T2655] cgroup_apply_control_enable+0x8b9/0x12f0 [ 415.633835][ T2655] cgroup_apply_control+0x8e/0x7e0 [ 415.638923][ T2655] ? css_next_child+0x160/0x160 [ 415.643763][ T2655] ? io_schedule+0x120/0x120 [ 415.648358][ T2655] ? kernfs_fop_write_iter+0x15e/0x410 [ 415.653793][ T2655] ? __kasan_check_write+0x14/0x20 [ 415.658885][ T2655] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 415.664469][ T2655] cgroup_subtree_control_write+0xd19/0x1310 [ 415.670664][ T2655] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 415.676808][ T2655] ? __kasan_check_write+0x14/0x20 [ 415.682070][ T2655] ? _copy_from_iter+0x3fb/0xd60 [ 415.686998][ T2655] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 415.692959][ T2655] cgroup_file_write+0x28e/0x590 [ 415.697879][ T2655] ? cgroup_seqfile_stop+0xc0/0xc0 [ 415.702967][ T2655] ? mutex_trylock+0x180/0x180 [ 415.707797][ T2655] ? __kasan_check_write+0x14/0x20 [ 415.712887][ T2655] kernfs_fop_write_iter+0x2d0/0x410 [ 415.718159][ T2655] ? cgroup_seqfile_stop+0xc0/0xc0 [ 415.723278][ T2655] vfs_write+0xc4a/0xf80 [ 415.727675][ T2655] ? kernel_write+0x420/0x420 [ 415.732327][ T2655] ? do_sys_openat2+0x397/0x470 [ 415.737373][ T2655] ? __kasan_check_read+0x11/0x20 [ 415.742428][ T2655] ? __fdget_pos+0x27e/0x310 [ 415.747010][ T2655] ksys_write+0x198/0x2c0 [ 415.751330][ T2655] ? __kasan_check_write+0x14/0x20 [ 415.758589][ T2655] ? __ia32_sys_read+0x90/0x90 [ 415.763517][ T2655] ? debug_smp_processor_id+0x17/0x20 [ 415.768953][ T2655] __x64_sys_write+0x7b/0x90 [ 415.773532][ T2655] do_syscall_64+0x34/0x70 [ 415.778308][ T2655] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 415.784400][ T2655] RIP: 0033:0x7f48883727a9 [ 415.789437][ T2655] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 415.809469][ T2655] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 415.817955][ T2655] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 415.826425][ T2655] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 415.834997][ T2655] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 415.843256][ T2655] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 415.852542][ T2655] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000002 [ 415.860997][ T2655] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 415.907189][ T2656] FAULT_INJECTION: forcing a failure. [ 415.907189][ T2656] name failslab, interval 1, probability 0, space 0, times 0 [ 415.920033][ T2656] CPU: 0 PID: 2656 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 415.930471][ T2656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 415.940620][ T2656] Call Trace: [ 415.943903][ T2656] dump_stack_lvl+0x1e2/0x24b [ 415.948613][ T2656] ? bfq_pos_tree_add_move+0x43e/0x43e [ 415.954154][ T2656] ? selinux_kernfs_init_security+0x1a8/0x760 [ 415.960221][ T2656] dump_stack+0x15/0x17 [ 415.964361][ T2656] should_fail+0x3c0/0x510 [ 415.968756][ T2656] ? __kernfs_new_node+0x99/0x6e0 [ 415.973849][ T2656] __should_failslab+0x9f/0xe0 [ 415.978608][ T2656] should_failslab+0x9/0x20 [ 415.983092][ T2656] __kmalloc_track_caller+0x5f/0x350 [ 415.988445][ T2656] kstrdup_const+0x55/0x90 [ 415.992926][ T2656] __kernfs_new_node+0x99/0x6e0 [ 415.998490][ T2656] ? is_module_text_address+0xe1/0x140 [ 416.004197][ T2656] ? kernfs_new_node+0x170/0x170 [ 416.009126][ T2656] ? ptr_to_hashval+0x60/0x60 [ 416.013887][ T2656] ? mutex_lock+0xb2/0x1e0 [ 416.018361][ T2656] ? snprintf+0xd6/0x120 [ 416.022597][ T2656] ? mutex_unlock+0x29/0xf0 [ 416.027133][ T2656] kernfs_new_node+0x97/0x170 [ 416.031924][ T2656] __kernfs_create_file+0x4a/0x270 [ 416.037091][ T2656] cgroup_addrm_files+0xab8/0xfe0 [ 416.042119][ T2656] ? ____kasan_kmalloc+0xdc/0x110 [ 416.047122][ T2656] ? __kasan_kmalloc+0x9/0x10 [ 416.051775][ T2656] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 416.057419][ T2656] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 416.063571][ T2656] ? delete_node+0x759/0x7b0 [ 416.068145][ T2656] ? __kasan_check_read+0x11/0x20 [ 416.073151][ T2656] ? idr_replace+0x1c4/0x230 [ 416.077743][ T2656] ? idr_get_next+0x4b0/0x4b0 [ 416.082418][ T2656] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 416.087436][ T2656] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 416.092702][ T2656] css_populate_dir+0x137/0x370 [ 416.097537][ T2656] cgroup_apply_control_enable+0x8b9/0x12f0 [ 416.103591][ T2656] cgroup_apply_control+0x8e/0x7e0 [ 416.108726][ T2656] ? css_next_child+0x160/0x160 [ 416.114042][ T2656] ? stack_trace_save+0x12d/0x1f0 [ 416.119161][ T2656] ? io_schedule+0x120/0x120 [ 416.123755][ T2656] ? kernfs_fop_write_iter+0x15e/0x410 [ 416.129572][ T2656] ? __kasan_check_write+0x14/0x20 [ 416.135313][ T2656] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 416.140591][ T2656] cgroup_subtree_control_write+0xd19/0x1310 [ 416.146554][ T2656] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 416.152514][ T2656] ? __kasan_check_write+0x14/0x20 [ 416.157614][ T2656] ? _copy_from_iter+0x3fb/0xd60 [ 416.162541][ T2656] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 416.168524][ T2656] cgroup_file_write+0x28e/0x590 [ 416.173494][ T2656] ? cgroup_seqfile_stop+0xc0/0xc0 [ 416.178669][ T2656] ? mutex_trylock+0x180/0x180 [ 416.183418][ T2656] ? __kasan_check_write+0x14/0x20 [ 416.188639][ T2656] kernfs_fop_write_iter+0x2d0/0x410 [ 416.193999][ T2656] ? cgroup_seqfile_stop+0xc0/0xc0 [ 416.199095][ T2656] vfs_write+0xc4a/0xf80 [ 416.203340][ T2656] ? slab_free_freelist_hook+0xcc/0x1a0 [ 416.208865][ T2656] ? kernel_write+0x420/0x420 [ 416.213521][ T2656] ? do_sys_openat2+0x397/0x470 [ 416.218355][ T2656] ? __kasan_check_read+0x11/0x20 [ 416.223366][ T2656] ? __fdget_pos+0x27e/0x310 [ 416.227951][ T2656] ksys_write+0x198/0x2c0 [ 416.232356][ T2656] ? __ia32_sys_read+0x90/0x90 [ 416.237104][ T2656] ? debug_smp_processor_id+0x17/0x20 [ 416.242475][ T2656] __x64_sys_write+0x7b/0x90 [ 416.247075][ T2656] do_syscall_64+0x34/0x70 [ 416.251479][ T2656] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 416.257381][ T2656] RIP: 0033:0x7f48883727a9 [ 416.261790][ T2656] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 416.281735][ T2656] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 416.290283][ T2656] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 416.298508][ T2656] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 416.306733][ T2656] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 416.314956][ T2656] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 416.323200][ T2656] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000004 [ 416.331623][ T2656] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 416.367066][ T2651] FAULT_INJECTION: forcing a failure. [ 416.367066][ T2651] name failslab, interval 1, probability 0, space 0, times 0 [ 416.380030][ T2651] CPU: 1 PID: 2651 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 416.391786][ T2651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 416.401943][ T2651] Call Trace: [ 416.405253][ T2651] dump_stack_lvl+0x1e2/0x24b [ 416.409934][ T2651] ? bfq_pos_tree_add_move+0x43e/0x43e [ 416.415396][ T2651] ? selinux_kernfs_init_security+0x1a8/0x760 [ 416.421601][ T2651] dump_stack+0x15/0x17 [ 416.425849][ T2651] should_fail+0x3c0/0x510 [ 416.430520][ T2651] ? __kernfs_new_node+0x99/0x6e0 [ 416.435634][ T2651] __should_failslab+0x9f/0xe0 [ 416.440963][ T2651] should_failslab+0x9/0x20 [ 416.445563][ T2651] __kmalloc_track_caller+0x5f/0x350 [ 416.450842][ T2651] kstrdup_const+0x55/0x90 [ 416.455272][ T2651] __kernfs_new_node+0x99/0x6e0 [ 416.460104][ T2651] ? is_module_text_address+0xe1/0x140 [ 416.465543][ T2651] ? kernfs_new_node+0x170/0x170 [ 416.470464][ T2651] ? ptr_to_hashval+0x60/0x60 [ 416.475282][ T2651] ? mutex_lock+0xb2/0x1e0 [ 416.479676][ T2651] ? snprintf+0xd6/0x120 [ 416.483922][ T2651] ? mutex_unlock+0x29/0xf0 [ 416.488404][ T2651] kernfs_new_node+0x97/0x170 [ 416.493229][ T2651] __kernfs_create_file+0x4a/0x270 [ 416.498321][ T2651] cgroup_addrm_files+0xab8/0xfe0 [ 416.503439][ T2651] ? ____kasan_kmalloc+0xdc/0x110 [ 416.508548][ T2651] ? __kasan_kmalloc+0x9/0x10 [ 416.513203][ T2651] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 416.518824][ T2651] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 416.525042][ T2651] ? delete_node+0x759/0x7b0 [ 416.529612][ T2651] ? __kasan_check_read+0x11/0x20 [ 416.534710][ T2651] ? idr_replace+0x1c4/0x230 [ 416.539538][ T2651] ? idr_get_next+0x4b0/0x4b0 [ 416.544294][ T2651] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 416.549447][ T2651] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 416.554716][ T2651] css_populate_dir+0x137/0x370 [ 416.559561][ T2651] cgroup_apply_control_enable+0x8b9/0x12f0 [ 416.565704][ T2651] cgroup_apply_control+0x8e/0x7e0 [ 416.570798][ T2651] ? css_next_child+0x160/0x160 [ 416.575803][ T2651] ? stack_trace_save+0x12d/0x1f0 [ 416.580893][ T2651] ? io_schedule+0x120/0x120 [ 416.585507][ T2651] ? kernfs_fop_write_iter+0x15e/0x410 [ 416.591052][ T2651] ? __kasan_check_write+0x14/0x20 [ 416.596269][ T2651] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 416.601545][ T2651] cgroup_subtree_control_write+0xd19/0x1310 [ 416.607692][ T2651] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 416.613657][ T2651] ? __kasan_check_write+0x14/0x20 [ 416.619452][ T2651] ? _copy_from_iter+0x3fb/0xd60 [ 416.624468][ T2651] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 416.630692][ T2651] cgroup_file_write+0x28e/0x590 [ 416.636420][ T2651] ? cgroup_seqfile_stop+0xc0/0xc0 [ 416.641908][ T2651] ? mutex_trylock+0x180/0x180 [ 416.647417][ T2651] ? __kasan_check_write+0x14/0x20 [ 416.652520][ T2651] kernfs_fop_write_iter+0x2d0/0x410 [ 416.657965][ T2651] ? cgroup_seqfile_stop+0xc0/0xc0 [ 416.663181][ T2651] vfs_write+0xc4a/0xf80 [ 416.667512][ T2651] ? slab_free_freelist_hook+0xcc/0x1a0 [ 416.673145][ T2651] ? kernel_write+0x420/0x420 [ 416.677902][ T2651] ? do_sys_openat2+0x397/0x470 [ 416.682819][ T2651] ? __kasan_check_read+0x11/0x20 [ 416.688233][ T2651] ? __fdget_pos+0x27e/0x310 [ 416.692889][ T2651] ksys_write+0x198/0x2c0 [ 416.697223][ T2651] ? __ia32_sys_read+0x90/0x90 [ 416.702073][ T2651] ? debug_smp_processor_id+0x17/0x20 [ 416.707425][ T2651] __x64_sys_write+0x7b/0x90 [ 416.712082][ T2651] do_syscall_64+0x34/0x70 [ 416.716528][ T2651] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 416.722914][ T2651] RIP: 0033:0x7f48883727a9 [ 416.727749][ T2651] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 416.747701][ T2651] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 416.756317][ T2651] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 416.764285][ T2651] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 416.772449][ T2651] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 416.780919][ T2651] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 416.789118][ T2651] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000003 [ 416.797383][ T2651] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 416.847153][ T2653] FAULT_INJECTION: forcing a failure. [ 416.847153][ T2653] name failslab, interval 1, probability 0, space 0, times 0 [ 416.859968][ T2653] CPU: 0 PID: 2653 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 416.870460][ T2653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 416.880603][ T2653] Call Trace: [ 416.883937][ T2653] dump_stack_lvl+0x1e2/0x24b [ 416.888623][ T2653] ? panic+0x7d7/0x7d7 [ 416.892688][ T2653] ? bfq_pos_tree_add_move+0x43e/0x43e [ 416.898158][ T2653] ? selinux_kernfs_init_security+0x1a8/0x760 [ 416.904358][ T2653] dump_stack+0x15/0x17 [ 416.908505][ T2653] should_fail+0x3c0/0x510 [ 416.912921][ T2653] __should_failslab+0x9f/0xe0 [ 416.918097][ T2653] should_failslab+0x9/0x20 [ 416.922803][ T2653] kmem_cache_alloc+0x3f/0x300 [ 416.927660][ T2653] ? __kernfs_new_node+0xdb/0x6e0 [ 416.932673][ T2653] __kernfs_new_node+0xdb/0x6e0 [ 416.937547][ T2653] ? is_module_text_address+0xe1/0x140 [ 416.942991][ T2653] ? kernfs_new_node+0x170/0x170 [ 416.948016][ T2653] ? ptr_to_hashval+0x60/0x60 [ 416.952679][ T2653] ? arch_stack_walk+0xf8/0x140 [ 416.957609][ T2653] ? snprintf+0xd6/0x120 [ 416.961860][ T2653] kernfs_new_node+0x97/0x170 [ 416.966620][ T2653] __kernfs_create_file+0x4a/0x270 [ 416.971738][ T2653] cgroup_addrm_files+0xab8/0xfe0 [ 416.976887][ T2653] ? ____kasan_kmalloc+0xdc/0x110 [ 416.981919][ T2653] ? __kasan_kmalloc+0x9/0x10 [ 416.986606][ T2653] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 416.992209][ T2653] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 416.998545][ T2653] ? delete_node+0x759/0x7b0 [ 417.003271][ T2653] ? __kasan_check_read+0x11/0x20 [ 417.009079][ T2653] ? delete_node+0x759/0x7b0 [ 417.013700][ T2653] ? __kasan_check_write+0x14/0x20 [ 417.019975][ T2653] ? idr_replace+0x1c4/0x230 [ 417.024653][ T2653] ? idr_get_next+0x4b0/0x4b0 [ 417.029632][ T2653] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 417.034805][ T2653] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 417.040009][ T2653] css_populate_dir+0x137/0x370 [ 417.044856][ T2653] cgroup_apply_control_enable+0x8b9/0x12f0 [ 417.050761][ T2653] cgroup_apply_control+0x8e/0x7e0 [ 417.056043][ T2653] ? css_next_child+0x160/0x160 [ 417.061641][ T2653] ? io_schedule+0x120/0x120 [ 417.066223][ T2653] ? kernfs_fop_write_iter+0x15e/0x410 [ 417.071702][ T2653] ? __kasan_check_write+0x14/0x20 [ 417.076806][ T2653] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 417.082076][ T2653] cgroup_subtree_control_write+0xd19/0x1310 [ 417.088047][ T2653] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 417.094127][ T2653] ? __kasan_check_write+0x14/0x20 [ 417.099341][ T2653] ? _copy_from_iter+0x3fb/0xd60 [ 417.104445][ T2653] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 417.113428][ T2653] cgroup_file_write+0x28e/0x590 [ 417.118744][ T2653] ? cgroup_seqfile_stop+0xc0/0xc0 [ 417.124535][ T2653] ? mutex_trylock+0x180/0x180 [ 417.129321][ T2653] ? __kasan_check_write+0x14/0x20 [ 417.134731][ T2653] kernfs_fop_write_iter+0x2d0/0x410 [ 417.140352][ T2653] ? cgroup_seqfile_stop+0xc0/0xc0 [ 417.145767][ T2653] vfs_write+0xc4a/0xf80 [ 417.150531][ T2653] ? kernel_write+0x420/0x420 [ 417.155550][ T2653] ? do_sys_openat2+0x397/0x470 [ 417.160930][ T2653] ? __kasan_check_read+0x11/0x20 [ 417.166592][ T2653] ? __fdget_pos+0x27e/0x310 [ 417.171719][ T2653] ksys_write+0x198/0x2c0 [ 417.176058][ T2653] ? __ia32_sys_read+0x90/0x90 [ 417.181075][ T2653] ? debug_smp_processor_id+0x17/0x20 [ 417.187334][ T2653] __x64_sys_write+0x7b/0x90 [ 417.192587][ T2653] do_syscall_64+0x34/0x70 [ 417.196997][ T2653] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 417.203199][ T2653] RIP: 0033:0x7f48883727a9 [ 417.208588][ T2653] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 417.229867][ T2653] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 417.239749][ T2653] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 417.248502][ T2653] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 417.257047][ T2653] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 417.266106][ T2653] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 417.274677][ T2653] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000003 [ 417.283875][ T2653] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 417.317241][ T2658] FAULT_INJECTION: forcing a failure. [ 417.317241][ T2658] name failslab, interval 1, probability 0, space 0, times 0 [ 417.331070][ T2658] CPU: 0 PID: 2658 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 417.341812][ T2658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 417.351998][ T2658] Call Trace: [ 417.355303][ T2658] dump_stack_lvl+0x1e2/0x24b [ 417.360204][ T2658] ? bfq_pos_tree_add_move+0x43e/0x43e [ 417.365859][ T2658] ? selinux_kernfs_init_security+0x1a8/0x760 [ 417.372007][ T2658] dump_stack+0x15/0x17 [ 417.376609][ T2658] should_fail+0x3c0/0x510 [ 417.381261][ T2658] ? __kernfs_new_node+0x99/0x6e0 [ 417.386297][ T2658] __should_failslab+0x9f/0xe0 [ 417.391168][ T2658] should_failslab+0x9/0x20 [ 417.395746][ T2658] __kmalloc_track_caller+0x5f/0x350 [ 417.401142][ T2658] kstrdup_const+0x55/0x90 [ 417.405551][ T2658] __kernfs_new_node+0x99/0x6e0 [ 417.410567][ T2658] ? is_module_text_address+0xe1/0x140 [ 417.416021][ T2658] ? kernfs_new_node+0x170/0x170 [ 417.421235][ T2658] ? ptr_to_hashval+0x60/0x60 [ 417.426087][ T2658] ? mutex_lock+0xb2/0x1e0 [ 417.430507][ T2658] ? snprintf+0xd6/0x120 [ 417.434737][ T2658] ? mutex_unlock+0x29/0xf0 [ 417.439407][ T2658] kernfs_new_node+0x97/0x170 [ 417.444223][ T2658] __kernfs_create_file+0x4a/0x270 [ 417.449948][ T2658] cgroup_addrm_files+0xab8/0xfe0 [ 417.455281][ T2658] ? ____kasan_kmalloc+0xdc/0x110 [ 417.460309][ T2658] ? __kasan_kmalloc+0x9/0x10 [ 417.464975][ T2658] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 417.470967][ T2658] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 417.477390][ T2658] ? delete_node+0x759/0x7b0 [ 417.482109][ T2658] ? __kasan_check_read+0x11/0x20 [ 417.487472][ T2658] ? idr_replace+0x1c4/0x230 [ 417.492085][ T2658] ? idr_get_next+0x4b0/0x4b0 [ 417.496804][ T2658] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 417.502002][ T2658] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 417.507870][ T2658] css_populate_dir+0x137/0x370 [ 417.512789][ T2658] cgroup_apply_control_enable+0x8b9/0x12f0 [ 417.518915][ T2658] cgroup_apply_control+0x8e/0x7e0 [ 417.524555][ T2658] ? css_next_child+0x160/0x160 [ 417.529562][ T2658] ? io_schedule+0x120/0x120 [ 417.534137][ T2658] ? kernfs_fop_write_iter+0x15e/0x410 [ 417.539579][ T2658] ? __kasan_check_write+0x14/0x20 [ 417.544674][ T2658] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 417.549943][ T2658] cgroup_subtree_control_write+0xd19/0x1310 [ 417.556087][ T2658] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 417.562264][ T2658] ? __kasan_check_write+0x14/0x20 [ 417.567386][ T2658] ? _copy_from_iter+0x3fb/0xd60 [ 417.572317][ T2658] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 417.578295][ T2658] cgroup_file_write+0x28e/0x590 [ 417.583343][ T2658] ? cgroup_seqfile_stop+0xc0/0xc0 [ 417.588584][ T2658] ? mutex_trylock+0x180/0x180 [ 417.593343][ T2658] ? __kasan_check_write+0x14/0x20 [ 417.598545][ T2658] kernfs_fop_write_iter+0x2d0/0x410 [ 417.604269][ T2658] ? cgroup_seqfile_stop+0xc0/0xc0 [ 417.609627][ T2658] vfs_write+0xc4a/0xf80 [ 417.613957][ T2658] ? kernel_write+0x420/0x420 [ 417.618617][ T2658] ? do_sys_openat2+0x397/0x470 [ 417.623829][ T2658] ? __kasan_check_read+0x11/0x20 [ 417.628876][ T2658] ? __fdget_pos+0x27e/0x310 [ 417.633446][ T2658] ksys_write+0x198/0x2c0 [ 417.638018][ T2658] ? __ia32_sys_read+0x90/0x90 [ 417.643203][ T2658] ? debug_smp_processor_id+0x17/0x20 [ 417.648817][ T2658] __x64_sys_write+0x7b/0x90 [ 417.653396][ T2658] do_syscall_64+0x34/0x70 [ 417.657821][ T2658] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 417.663811][ T2658] RIP: 0033:0x7f48883727a9 [ 417.668321][ T2658] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 417.688148][ T2658] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 417.697047][ T2658] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 417.705034][ T2658] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 417.713004][ T2658] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 417.722006][ T2658] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 417.730054][ T2658] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000003 [ 417.738466][ T2658] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 417.777247][ T2666] FAULT_INJECTION: forcing a failure. [ 417.777247][ T2666] name failslab, interval 1, probability 0, space 0, times 0 [ 417.790236][ T2666] CPU: 1 PID: 2666 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 417.800659][ T2666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 417.811255][ T2666] Call Trace: [ 417.814862][ T2666] dump_stack_lvl+0x1e2/0x24b [ 417.819750][ T2666] ? bfq_pos_tree_add_move+0x43e/0x43e [ 417.825523][ T2666] ? selinux_kernfs_init_security+0x1a8/0x760 [ 417.831999][ T2666] dump_stack+0x15/0x17 [ 417.836311][ T2666] should_fail+0x3c0/0x510 [ 417.840767][ T2666] ? __kernfs_new_node+0x99/0x6e0 [ 417.845869][ T2666] __should_failslab+0x9f/0xe0 [ 417.850710][ T2666] should_failslab+0x9/0x20 [ 417.855390][ T2666] __kmalloc_track_caller+0x5f/0x350 [ 417.860689][ T2666] kstrdup_const+0x55/0x90 [ 417.866174][ T2666] __kernfs_new_node+0x99/0x6e0 [ 417.871211][ T2666] ? is_module_text_address+0xe1/0x140 [ 417.876788][ T2666] ? kernfs_new_node+0x170/0x170 [ 417.882167][ T2666] ? ptr_to_hashval+0x60/0x60 [ 417.886956][ T2666] ? mutex_lock+0xb2/0x1e0 [ 417.891558][ T2666] ? snprintf+0xd6/0x120 [ 417.895804][ T2666] ? mutex_unlock+0x29/0xf0 [ 417.900327][ T2666] kernfs_new_node+0x97/0x170 [ 417.905102][ T2666] __kernfs_create_file+0x4a/0x270 [ 417.910496][ T2666] cgroup_addrm_files+0xab8/0xfe0 [ 417.915617][ T2666] ? ____kasan_kmalloc+0xdc/0x110 [ 417.920881][ T2666] ? __kasan_kmalloc+0x9/0x10 [ 417.925763][ T2666] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 417.931351][ T2666] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 417.937702][ T2666] ? delete_node+0x759/0x7b0 [ 417.942291][ T2666] ? __kasan_check_read+0x11/0x20 [ 417.947470][ T2666] ? idr_replace+0x1c4/0x230 [ 417.952091][ T2666] ? idr_get_next+0x4b0/0x4b0 [ 417.957086][ T2666] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 417.962116][ T2666] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 417.967320][ T2666] css_populate_dir+0x137/0x370 [ 417.972253][ T2666] cgroup_apply_control_enable+0x8b9/0x12f0 [ 417.978140][ T2666] cgroup_apply_control+0x8e/0x7e0 [ 417.983259][ T2666] ? css_next_child+0x160/0x160 [ 417.988810][ T2666] ? stack_trace_save+0x12d/0x1f0 [ 417.994343][ T2666] ? io_schedule+0x120/0x120 [ 417.999022][ T2666] ? kernfs_fop_write_iter+0x15e/0x410 [ 418.004476][ T2666] ? __kasan_check_write+0x14/0x20 [ 418.009581][ T2666] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 418.014863][ T2666] cgroup_subtree_control_write+0xd19/0x1310 [ 418.020949][ T2666] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 418.027531][ T2666] ? __kasan_check_write+0x14/0x20 [ 418.033281][ T2666] ? _copy_from_iter+0x3fb/0xd60 [ 418.038582][ T2666] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 418.044845][ T2666] cgroup_file_write+0x28e/0x590 [ 418.050050][ T2666] ? cgroup_seqfile_stop+0xc0/0xc0 [ 418.055380][ T2666] ? mutex_trylock+0x180/0x180 [ 418.060373][ T2666] ? __kasan_check_write+0x14/0x20 [ 418.065829][ T2666] kernfs_fop_write_iter+0x2d0/0x410 [ 418.071363][ T2666] ? cgroup_seqfile_stop+0xc0/0xc0 [ 418.076655][ T2666] vfs_write+0xc4a/0xf80 [ 418.080973][ T2666] ? slab_free_freelist_hook+0xcc/0x1a0 [ 418.086728][ T2666] ? kernel_write+0x420/0x420 [ 418.091405][ T2666] ? do_sys_openat2+0x397/0x470 [ 418.096423][ T2666] ? __kasan_check_read+0x11/0x20 [ 418.101765][ T2666] ? __fdget_pos+0x27e/0x310 [ 418.106457][ T2666] ksys_write+0x198/0x2c0 [ 418.110784][ T2666] ? __ia32_sys_read+0x90/0x90 [ 418.115889][ T2666] ? debug_smp_processor_id+0x17/0x20 [ 418.121716][ T2666] __x64_sys_write+0x7b/0x90 [ 418.126562][ T2666] do_syscall_64+0x34/0x70 [ 418.131235][ T2666] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 418.137514][ T2666] RIP: 0033:0x7f48883727a9 [ 418.142359][ T2666] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 418.162267][ T2666] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 418.171021][ T2666] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 418.179265][ T2666] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 418.187582][ T2666] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 418.195711][ T2666] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 418.203833][ T2666] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000004 [ 418.212285][ T2666] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 418.257048][ T2663] FAULT_INJECTION: forcing a failure. [ 418.257048][ T2663] name failslab, interval 1, probability 0, space 0, times 0 [ 418.270037][ T2663] CPU: 1 PID: 2663 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 418.280525][ T2663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 418.290955][ T2663] Call Trace: [ 418.294275][ T2663] dump_stack_lvl+0x1e2/0x24b [ 418.299025][ T2663] ? panic+0x7d7/0x7d7 [ 418.303182][ T2663] ? bfq_pos_tree_add_move+0x43e/0x43e [ 418.308726][ T2663] ? selinux_kernfs_init_security+0x1a8/0x760 [ 418.314790][ T2663] dump_stack+0x15/0x17 [ 418.319105][ T2663] should_fail+0x3c0/0x510 [ 418.323772][ T2663] __should_failslab+0x9f/0xe0 [ 418.328528][ T2663] should_failslab+0x9/0x20 [ 418.334955][ T2663] kmem_cache_alloc+0x3f/0x300 [ 418.339825][ T2663] ? __kernfs_new_node+0xdb/0x6e0 [ 418.344850][ T2663] __kernfs_new_node+0xdb/0x6e0 [ 418.349834][ T2663] ? is_module_text_address+0xe1/0x140 [ 418.355285][ T2663] ? kernfs_new_node+0x170/0x170 [ 418.360559][ T2663] ? ptr_to_hashval+0x60/0x60 [ 418.365345][ T2663] ? arch_stack_walk+0xf8/0x140 [ 418.370189][ T2663] ? snprintf+0xd6/0x120 [ 418.374424][ T2663] kernfs_new_node+0x97/0x170 [ 418.379199][ T2663] __kernfs_create_file+0x4a/0x270 [ 418.384323][ T2663] cgroup_addrm_files+0xab8/0xfe0 [ 418.389706][ T2663] ? ____kasan_kmalloc+0xdc/0x110 [ 418.394833][ T2663] ? __kasan_kmalloc+0x9/0x10 [ 418.399515][ T2663] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 418.405067][ T2663] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 418.411442][ T2663] ? delete_node+0x759/0x7b0 [ 418.416249][ T2663] ? __kasan_check_read+0x11/0x20 [ 418.421490][ T2663] ? delete_node+0x759/0x7b0 [ 418.426166][ T2663] ? __kasan_check_write+0x14/0x20 [ 418.431315][ T2663] ? idr_replace+0x1c4/0x230 [ 418.436035][ T2663] ? idr_get_next+0x4b0/0x4b0 [ 418.441247][ T2663] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 418.446289][ T2663] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 418.451763][ T2663] css_populate_dir+0x137/0x370 [ 418.456778][ T2663] cgroup_apply_control_enable+0x8b9/0x12f0 [ 418.463130][ T2663] cgroup_apply_control+0x8e/0x7e0 [ 418.468387][ T2663] ? css_next_child+0x160/0x160 [ 418.473239][ T2663] ? stack_trace_save+0x12d/0x1f0 [ 418.478520][ T2663] ? io_schedule+0x120/0x120 [ 418.483210][ T2663] ? kernfs_fop_write_iter+0x15e/0x410 [ 418.488898][ T2663] ? __kasan_check_write+0x14/0x20 [ 418.494190][ T2663] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 418.499693][ T2663] cgroup_subtree_control_write+0xd19/0x1310 [ 418.506286][ T2663] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 418.512551][ T2663] ? __kasan_check_write+0x14/0x20 [ 418.518017][ T2663] ? _copy_from_iter+0x3fb/0xd60 [ 418.522960][ T2663] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 418.528977][ T2663] cgroup_file_write+0x28e/0x590 [ 418.534291][ T2663] ? cgroup_seqfile_stop+0xc0/0xc0 [ 418.540351][ T2663] ? mutex_trylock+0x180/0x180 [ 418.545638][ T2663] ? __kasan_check_write+0x14/0x20 [ 418.550838][ T2663] kernfs_fop_write_iter+0x2d0/0x410 [ 418.556337][ T2663] ? cgroup_seqfile_stop+0xc0/0xc0 [ 418.561807][ T2663] vfs_write+0xc4a/0xf80 [ 418.566705][ T2663] ? slab_free_freelist_hook+0xcc/0x1a0 [ 418.572466][ T2663] ? kernel_write+0x420/0x420 [ 418.577603][ T2663] ? do_sys_openat2+0x397/0x470 [ 418.582540][ T2663] ? __kasan_check_read+0x11/0x20 [ 418.587569][ T2663] ? __fdget_pos+0x27e/0x310 [ 418.592182][ T2663] ksys_write+0x198/0x2c0 [ 418.596506][ T2663] ? __ia32_sys_read+0x90/0x90 [ 418.601656][ T2663] ? debug_smp_processor_id+0x17/0x20 [ 418.607512][ T2663] __x64_sys_write+0x7b/0x90 [ 418.612495][ T2663] do_syscall_64+0x34/0x70 [ 418.617392][ T2663] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 418.623604][ T2663] RIP: 0033:0x7f48883727a9 [ 418.628179][ T2663] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 418.648831][ T2663] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 418.657471][ T2663] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 418.666098][ T2663] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 418.674078][ T2663] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 418.682299][ T2663] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 418.690378][ T2663] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000005 [ 418.699705][ T2663] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 418.747029][ T2661] FAULT_INJECTION: forcing a failure. [ 418.747029][ T2661] name failslab, interval 1, probability 0, space 0, times 0 [ 418.760068][ T2661] CPU: 1 PID: 2661 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 418.770753][ T2661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 418.780890][ T2661] Call Trace: [ 418.784295][ T2661] dump_stack_lvl+0x1e2/0x24b [ 418.789226][ T2661] ? panic+0x7d7/0x7d7 [ 418.793296][ T2661] ? arch_stack_walk+0x106/0x140 [ 418.798235][ T2661] ? bfq_pos_tree_add_move+0x43e/0x43e [ 418.803704][ T2661] ? do_syscall_64+0x34/0x70 [ 418.808485][ T2661] dump_stack+0x15/0x17 [ 418.813237][ T2661] should_fail+0x3c0/0x510 [ 418.817810][ T2661] __should_failslab+0x9f/0xe0 [ 418.822582][ T2661] should_failslab+0x9/0x20 [ 418.827087][ T2661] kmem_cache_alloc+0x3f/0x300 [ 418.831974][ T2661] ? __kernfs_new_node+0xdb/0x6e0 [ 418.837328][ T2661] __kernfs_new_node+0xdb/0x6e0 [ 418.842189][ T2661] ? is_module_text_address+0xe1/0x140 [ 418.847659][ T2661] ? kernfs_new_node+0x170/0x170 [ 418.852593][ T2661] ? ptr_to_hashval+0x60/0x60 [ 418.857437][ T2661] ? arch_stack_walk+0xf8/0x140 [ 418.862647][ T2661] ? snprintf+0xd6/0x120 [ 418.867726][ T2661] kernfs_new_node+0x97/0x170 [ 418.873047][ T2661] __kernfs_create_file+0x4a/0x270 [ 418.878515][ T2661] cgroup_addrm_files+0xab8/0xfe0 [ 418.883831][ T2661] ? ____kasan_kmalloc+0xdc/0x110 [ 418.889368][ T2661] ? __kasan_kmalloc+0x9/0x10 [ 418.894476][ T2661] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 418.900138][ T2661] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 418.906667][ T2661] ? delete_node+0x759/0x7b0 [ 418.911446][ T2661] ? __kasan_check_read+0x11/0x20 [ 418.916561][ T2661] ? delete_node+0x759/0x7b0 [ 418.921249][ T2661] ? __kasan_check_write+0x14/0x20 [ 418.926836][ T2661] ? idr_replace+0x1c4/0x230 [ 418.931575][ T2661] ? idr_get_next+0x4b0/0x4b0 [ 418.936450][ T2661] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 418.941691][ T2661] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 418.947230][ T2661] css_populate_dir+0x137/0x370 [ 418.952212][ T2661] cgroup_apply_control_enable+0x8b9/0x12f0 [ 418.958252][ T2661] cgroup_apply_control+0x8e/0x7e0 [ 418.963559][ T2661] ? css_next_child+0x160/0x160 [ 418.968708][ T2661] ? stack_trace_save+0x12d/0x1f0 [ 418.974090][ T2661] ? io_schedule+0x120/0x120 [ 418.979324][ T2661] ? kernfs_fop_write_iter+0x15e/0x410 [ 418.985177][ T2661] ? __kasan_check_write+0x14/0x20 [ 418.990301][ T2661] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 418.995589][ T2661] cgroup_subtree_control_write+0xd19/0x1310 [ 419.001588][ T2661] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 419.007674][ T2661] ? __kasan_check_write+0x14/0x20 [ 419.012775][ T2661] ? _copy_from_iter+0x3fb/0xd60 [ 419.017890][ T2661] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 419.023917][ T2661] cgroup_file_write+0x28e/0x590 [ 419.028866][ T2661] ? cgroup_seqfile_stop+0xc0/0xc0 [ 419.034080][ T2661] ? mutex_trylock+0x180/0x180 [ 419.039006][ T2661] ? __kasan_check_write+0x14/0x20 [ 419.044662][ T2661] kernfs_fop_write_iter+0x2d0/0x410 [ 419.050863][ T2661] ? cgroup_seqfile_stop+0xc0/0xc0 [ 419.056108][ T2661] vfs_write+0xc4a/0xf80 [ 419.060752][ T2661] ? slab_free_freelist_hook+0xcc/0x1a0 [ 419.066403][ T2661] ? kernel_write+0x420/0x420 [ 419.071112][ T2661] ? do_sys_openat2+0x397/0x470 [ 419.076009][ T2661] ? __kasan_check_read+0x11/0x20 [ 419.081034][ T2661] ? __fdget_pos+0x27e/0x310 [ 419.085740][ T2661] ksys_write+0x198/0x2c0 [ 419.090076][ T2661] ? __ia32_sys_read+0x90/0x90 [ 419.094853][ T2661] ? debug_smp_processor_id+0x17/0x20 [ 419.100810][ T2661] __x64_sys_write+0x7b/0x90 [ 419.105697][ T2661] do_syscall_64+0x34/0x70 [ 419.110175][ T2661] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 419.116249][ T2661] RIP: 0033:0x7f48883727a9 [ 419.120677][ T2661] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 419.141671][ T2661] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 419.150330][ T2661] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 419.158497][ T2661] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 419.167689][ T2661] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 419.175678][ T2661] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 419.183821][ T2661] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000005 [ 419.191951][ T2661] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 419.237158][ T2665] FAULT_INJECTION: forcing a failure. [ 419.237158][ T2665] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 419.250485][ T2665] CPU: 0 PID: 2665 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 419.261241][ T2665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 419.271617][ T2665] Call Trace: [ 419.275194][ T2665] dump_stack_lvl+0x1e2/0x24b [ 419.280002][ T2665] ? bfq_pos_tree_add_move+0x43e/0x43e [ 419.285550][ T2665] ? stack_trace_save+0x12d/0x1f0 [ 419.290654][ T2665] ? asm_sysvec_call_function_single+0x12/0x20 [ 419.296863][ T2665] dump_stack+0x15/0x17 [ 419.301101][ T2665] should_fail+0x3c0/0x510 [ 419.305514][ T2665] should_fail_alloc_page+0x50/0x60 [ 419.310854][ T2665] __alloc_pages_nodemask+0x1c0/0x890 [ 419.316427][ T2665] ? __kasan_check_write+0x14/0x20 [ 419.321558][ T2665] ? delete_node+0x759/0x7b0 [ 419.326213][ T2665] ? mutex_trylock+0x180/0x180 [ 419.331316][ T2665] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 419.337144][ T2665] ? kernfs_xattr_get+0x80/0x90 [ 419.342141][ T2665] ? selinux_kernfs_init_security+0x1a8/0x760 [ 419.348704][ T2665] allocate_slab+0x78/0x540 [ 419.353323][ T2665] ___slab_alloc+0x131/0x2e0 [ 419.358208][ T2665] ? __kernfs_new_node+0xdb/0x6e0 [ 419.363239][ T2665] __slab_alloc+0x63/0xa0 [ 419.367925][ T2665] ? __kernfs_new_node+0xdb/0x6e0 [ 419.372948][ T2665] kmem_cache_alloc+0x1ef/0x300 [ 419.377814][ T2665] ? __kernfs_new_node+0xdb/0x6e0 [ 419.383260][ T2665] __kernfs_new_node+0xdb/0x6e0 [ 419.388253][ T2665] ? is_module_text_address+0xe1/0x140 [ 419.394055][ T2665] ? kernfs_new_node+0x170/0x170 [ 419.399016][ T2665] ? ptr_to_hashval+0x60/0x60 [ 419.403685][ T2665] ? arch_stack_walk+0xf8/0x140 [ 419.408825][ T2665] ? snprintf+0xd6/0x120 [ 419.413067][ T2665] kernfs_new_node+0x97/0x170 [ 419.417753][ T2665] __kernfs_create_file+0x4a/0x270 [ 419.422896][ T2665] cgroup_addrm_files+0xab8/0xfe0 [ 419.428287][ T2665] ? ____kasan_kmalloc+0xdc/0x110 [ 419.433527][ T2665] ? __kasan_kmalloc+0x9/0x10 [ 419.438229][ T2665] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 419.443772][ T2665] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 419.449990][ T2665] ? delete_node+0x759/0x7b0 [ 419.454762][ T2665] ? __kasan_check_read+0x11/0x20 [ 419.459883][ T2665] ? delete_node+0x759/0x7b0 [ 419.464519][ T2665] ? __kasan_check_write+0x14/0x20 [ 419.469717][ T2665] ? idr_replace+0x1c4/0x230 [ 419.474608][ T2665] ? idr_get_next+0x4b0/0x4b0 [ 419.479909][ T2665] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 419.485476][ T2665] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 419.490859][ T2665] css_populate_dir+0x137/0x370 [ 419.496073][ T2665] cgroup_apply_control_enable+0x8b9/0x12f0 [ 419.505180][ T2665] cgroup_apply_control+0x8e/0x7e0 [ 419.511269][ T2665] ? css_next_child+0x160/0x160 [ 419.517007][ T2665] ? stack_trace_save+0x12d/0x1f0 [ 419.522517][ T2665] ? io_schedule+0x120/0x120 [ 419.527809][ T2665] ? kernfs_fop_write_iter+0x15e/0x410 [ 419.533869][ T2665] ? __kasan_check_write+0x14/0x20 [ 419.539545][ T2665] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 419.545106][ T2665] cgroup_subtree_control_write+0xd19/0x1310 [ 419.551433][ T2665] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 419.558283][ T2665] ? __kasan_check_write+0x14/0x20 [ 419.563511][ T2665] ? _copy_from_iter+0x3fb/0xd60 [ 419.568671][ T2665] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 419.575417][ T2665] cgroup_file_write+0x28e/0x590 [ 419.581205][ T2665] ? cgroup_seqfile_stop+0xc0/0xc0 [ 419.586570][ T2665] ? mutex_trylock+0x180/0x180 [ 419.591669][ T2665] ? __kasan_check_write+0x14/0x20 [ 419.596970][ T2665] kernfs_fop_write_iter+0x2d0/0x410 [ 419.602964][ T2665] ? cgroup_seqfile_stop+0xc0/0xc0 [ 419.608654][ T2665] vfs_write+0xc4a/0xf80 [ 419.613336][ T2665] ? slab_free_freelist_hook+0xcc/0x1a0 [ 419.618884][ T2665] ? kernel_write+0x420/0x420 [ 419.623809][ T2665] ? do_sys_openat2+0x397/0x470 [ 419.628673][ T2665] ? __kasan_check_read+0x11/0x20 [ 419.633881][ T2665] ? __fdget_pos+0x27e/0x310 [ 419.639644][ T2665] ksys_write+0x198/0x2c0 [ 419.644919][ T2665] ? __ia32_sys_read+0x90/0x90 [ 419.649958][ T2665] ? debug_smp_processor_id+0x17/0x20 [ 419.656528][ T2665] __x64_sys_write+0x7b/0x90 [ 419.661645][ T2665] do_syscall_64+0x34/0x70 [ 419.666223][ T2665] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 419.673075][ T2665] RIP: 0033:0x7f48883727a9 [ 419.677596][ T2665] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 419.701210][ T2665] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 419.709978][ T2665] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 419.718581][ T2665] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 419.727338][ T2665] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 419.736784][ T2665] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 419.745964][ T2665] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000004 [ 419.817307][ T2662] FAULT_INJECTION: forcing a failure. [ 419.817307][ T2662] name failslab, interval 1, probability 0, space 0, times 0 [ 419.830460][ T2662] CPU: 0 PID: 2662 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 419.842281][ T2662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 419.853218][ T2662] Call Trace: [ 419.857127][ T2662] dump_stack_lvl+0x1e2/0x24b [ 419.861989][ T2662] ? bfq_pos_tree_add_move+0x43e/0x43e [ 419.867576][ T2662] ? selinux_kernfs_init_security+0x1a8/0x760 [ 419.873732][ T2662] dump_stack+0x15/0x17 [ 419.877884][ T2662] should_fail+0x3c0/0x510 [ 419.882310][ T2662] ? __kernfs_new_node+0x99/0x6e0 [ 419.887327][ T2662] __should_failslab+0x9f/0xe0 [ 419.892285][ T2662] should_failslab+0x9/0x20 [ 419.897086][ T2662] __kmalloc_track_caller+0x5f/0x350 [ 419.902369][ T2662] kstrdup_const+0x55/0x90 [ 419.907075][ T2662] __kernfs_new_node+0x99/0x6e0 [ 419.912014][ T2662] ? is_module_text_address+0xe1/0x140 [ 419.917881][ T2662] ? kernfs_new_node+0x170/0x170 [ 419.923269][ T2662] ? ptr_to_hashval+0x60/0x60 [ 419.928159][ T2662] ? mutex_lock+0xb2/0x1e0 [ 419.933237][ T2662] ? snprintf+0xd6/0x120 [ 419.937955][ T2662] ? mutex_unlock+0x29/0xf0 [ 419.942590][ T2662] kernfs_new_node+0x97/0x170 [ 419.948065][ T2662] __kernfs_create_file+0x4a/0x270 [ 419.953518][ T2662] cgroup_addrm_files+0xab8/0xfe0 [ 419.958899][ T2662] ? ____kasan_kmalloc+0xdc/0x110 [ 419.963910][ T2662] ? __kasan_kmalloc+0x9/0x10 [ 419.968676][ T2662] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 419.974574][ T2662] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 419.980728][ T2662] ? delete_node+0x759/0x7b0 [ 419.985352][ T2662] ? __kasan_check_read+0x11/0x20 [ 419.990478][ T2662] ? idr_replace+0x1c4/0x230 [ 419.995153][ T2662] ? idr_get_next+0x4b0/0x4b0 [ 419.999845][ T2662] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 420.005156][ T2662] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 420.010447][ T2662] css_populate_dir+0x137/0x370 [ 420.015578][ T2662] cgroup_apply_control_enable+0x8b9/0x12f0 [ 420.021658][ T2662] cgroup_apply_control+0x8e/0x7e0 [ 420.026879][ T2662] ? css_next_child+0x160/0x160 [ 420.032219][ T2662] ? stack_trace_save+0x12d/0x1f0 [ 420.037592][ T2662] ? io_schedule+0x120/0x120 [ 420.042423][ T2662] ? kernfs_fop_write_iter+0x15e/0x410 [ 420.047909][ T2662] ? __kasan_check_write+0x14/0x20 [ 420.053017][ T2662] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 420.058435][ T2662] cgroup_subtree_control_write+0xd19/0x1310 [ 420.064497][ T2662] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 420.070485][ T2662] ? __kasan_check_write+0x14/0x20 [ 420.076178][ T2662] ? _copy_from_iter+0x3fb/0xd60 [ 420.081123][ T2662] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 420.087199][ T2662] cgroup_file_write+0x28e/0x590 [ 420.092257][ T2662] ? cgroup_seqfile_stop+0xc0/0xc0 [ 420.097495][ T2662] ? mutex_trylock+0x180/0x180 [ 420.102387][ T2662] ? __kasan_check_write+0x14/0x20 [ 420.107595][ T2662] kernfs_fop_write_iter+0x2d0/0x410 [ 420.113408][ T2662] ? cgroup_seqfile_stop+0xc0/0xc0 [ 420.118812][ T2662] vfs_write+0xc4a/0xf80 [ 420.123469][ T2662] ? slab_free_freelist_hook+0xcc/0x1a0 [ 420.129303][ T2662] ? kernel_write+0x420/0x420 [ 420.134160][ T2662] ? do_sys_openat2+0x397/0x470 [ 420.139234][ T2662] ? __kasan_check_read+0x11/0x20 [ 420.144524][ T2662] ? __fdget_pos+0x27e/0x310 [ 420.149517][ T2662] ksys_write+0x198/0x2c0 [ 420.154244][ T2662] ? __ia32_sys_read+0x90/0x90 [ 420.159516][ T2662] ? debug_smp_processor_id+0x17/0x20 [ 420.166495][ T2662] __x64_sys_write+0x7b/0x90 [ 420.171219][ T2662] do_syscall_64+0x34/0x70 [ 420.176244][ T2662] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 420.182269][ T2662] RIP: 0033:0x7f48883727a9 [ 420.186687][ T2662] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 420.208824][ T2662] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 420.217376][ T2662] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 420.226618][ T2662] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 420.235110][ T2662] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 420.243690][ T2662] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 420.252878][ T2662] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000003 [ 420.262144][ T2662] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 420.307150][ T2670] FAULT_INJECTION: forcing a failure. [ 420.307150][ T2670] name failslab, interval 1, probability 0, space 0, times 0 [ 420.320362][ T2670] CPU: 1 PID: 2670 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 420.331374][ T2670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 420.342787][ T2670] Call Trace: [ 420.346806][ T2670] dump_stack_lvl+0x1e2/0x24b [ 420.351755][ T2670] ? bfq_pos_tree_add_move+0x43e/0x43e [ 420.357311][ T2670] ? selinux_kernfs_init_security+0x1a8/0x760 [ 420.363377][ T2670] dump_stack+0x15/0x17 [ 420.367730][ T2670] should_fail+0x3c0/0x510 [ 420.372233][ T2670] ? __kernfs_new_node+0x99/0x6e0 [ 420.377507][ T2670] __should_failslab+0x9f/0xe0 [ 420.382365][ T2670] should_failslab+0x9/0x20 [ 420.386887][ T2670] __kmalloc_track_caller+0x5f/0x350 [ 420.392343][ T2670] kstrdup_const+0x55/0x90 [ 420.397320][ T2670] __kernfs_new_node+0x99/0x6e0 [ 420.402510][ T2670] ? is_module_text_address+0xe1/0x140 [ 420.408488][ T2670] ? kernfs_new_node+0x170/0x170 [ 420.414011][ T2670] ? ptr_to_hashval+0x60/0x60 [ 420.419149][ T2670] ? mutex_lock+0xb2/0x1e0 [ 420.424163][ T2670] ? snprintf+0xd6/0x120 [ 420.428689][ T2670] ? mutex_unlock+0x29/0xf0 [ 420.433281][ T2670] kernfs_new_node+0x97/0x170 [ 420.438108][ T2670] __kernfs_create_file+0x4a/0x270 [ 420.443431][ T2670] cgroup_addrm_files+0xab8/0xfe0 [ 420.448935][ T2670] ? ____kasan_kmalloc+0xdc/0x110 [ 420.454011][ T2670] ? __kasan_kmalloc+0x9/0x10 [ 420.458927][ T2670] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 420.464571][ T2670] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 420.471114][ T2670] ? delete_node+0x759/0x7b0 [ 420.476174][ T2670] ? __kasan_check_read+0x11/0x20 [ 420.482294][ T2670] ? idr_replace+0x1c4/0x230 [ 420.486946][ T2670] ? idr_get_next+0x4b0/0x4b0 [ 420.491717][ T2670] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 420.497071][ T2670] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 420.502892][ T2670] css_populate_dir+0x137/0x370 [ 420.508243][ T2670] cgroup_apply_control_enable+0x8b9/0x12f0 [ 420.514562][ T2670] cgroup_apply_control+0x8e/0x7e0 [ 420.520562][ T2670] ? css_next_child+0x160/0x160 [ 420.526186][ T2670] ? stack_trace_save+0x12d/0x1f0 [ 420.531841][ T2670] ? io_schedule+0x120/0x120 [ 420.536973][ T2670] ? kernfs_fop_write_iter+0x15e/0x410 [ 420.542429][ T2670] ? __kasan_check_write+0x14/0x20 [ 420.547657][ T2670] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 420.553337][ T2670] cgroup_subtree_control_write+0xd19/0x1310 [ 420.560405][ T2670] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 420.567140][ T2670] ? __kasan_check_write+0x14/0x20 [ 420.572689][ T2670] ? _copy_from_iter+0x3fb/0xd60 [ 420.578466][ T2670] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 420.585026][ T2670] cgroup_file_write+0x28e/0x590 [ 420.590060][ T2670] ? cgroup_seqfile_stop+0xc0/0xc0 [ 420.595182][ T2670] ? mutex_trylock+0x180/0x180 [ 420.600040][ T2670] ? __kasan_check_write+0x14/0x20 [ 420.605230][ T2670] kernfs_fop_write_iter+0x2d0/0x410 [ 420.610593][ T2670] ? cgroup_seqfile_stop+0xc0/0xc0 [ 420.615749][ T2670] vfs_write+0xc4a/0xf80 [ 420.620201][ T2670] ? slab_free_freelist_hook+0xcc/0x1a0 [ 420.625918][ T2670] ? kernel_write+0x420/0x420 [ 420.630767][ T2670] ? do_sys_openat2+0x397/0x470 [ 420.635746][ T2670] ? __kasan_check_read+0x11/0x20 [ 420.640965][ T2670] ? __fdget_pos+0x27e/0x310 [ 420.645636][ T2670] ksys_write+0x198/0x2c0 [ 420.650718][ T2670] ? __ia32_sys_read+0x90/0x90 [ 420.655491][ T2670] ? debug_smp_processor_id+0x17/0x20 [ 420.660880][ T2670] __x64_sys_write+0x7b/0x90 [ 420.665616][ T2670] do_syscall_64+0x34/0x70 [ 420.670101][ T2670] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 420.676271][ T2670] RIP: 0033:0x7f48883727a9 [ 420.680682][ T2670] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 420.701170][ T2670] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 420.709672][ T2670] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 420.717652][ T2670] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 420.725737][ T2670] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 420.733850][ T2670] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 420.741912][ T2670] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000005 [ 420.750576][ T2670] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 420.797347][ T2669] FAULT_INJECTION: forcing a failure. [ 420.797347][ T2669] name failslab, interval 1, probability 0, space 0, times 0 [ 420.810722][ T2669] CPU: 0 PID: 2669 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 420.822069][ T2669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 420.832672][ T2669] Call Trace: [ 420.836148][ T2669] dump_stack_lvl+0x1e2/0x24b [ 420.841085][ T2669] ? panic+0x7d7/0x7d7 [ 420.845567][ T2669] ? bfq_pos_tree_add_move+0x43e/0x43e [ 420.851293][ T2669] ? selinux_kernfs_init_security+0x1a8/0x760 [ 420.857590][ T2669] dump_stack+0x15/0x17 [ 420.861846][ T2669] should_fail+0x3c0/0x510 [ 420.866285][ T2669] __should_failslab+0x9f/0xe0 [ 420.871234][ T2669] should_failslab+0x9/0x20 [ 420.876030][ T2669] kmem_cache_alloc+0x3f/0x300 [ 420.881162][ T2669] ? __kernfs_new_node+0xdb/0x6e0 [ 420.886184][ T2669] __kernfs_new_node+0xdb/0x6e0 [ 420.891591][ T2669] ? is_module_text_address+0xe1/0x140 [ 420.897857][ T2669] ? kernfs_new_node+0x170/0x170 [ 420.904125][ T2669] ? ptr_to_hashval+0x60/0x60 [ 420.908798][ T2669] ? arch_stack_walk+0xf8/0x140 [ 420.913731][ T2669] ? snprintf+0xd6/0x120 [ 420.917994][ T2669] kernfs_new_node+0x97/0x170 [ 420.922757][ T2669] __kernfs_create_file+0x4a/0x270 [ 420.927944][ T2669] cgroup_addrm_files+0xab8/0xfe0 [ 420.933237][ T2669] ? ____kasan_kmalloc+0xdc/0x110 [ 420.938658][ T2669] ? __kasan_kmalloc+0x9/0x10 [ 420.943703][ T2669] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 420.949343][ T2669] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 420.955760][ T2669] ? delete_node+0x759/0x7b0 [ 420.960347][ T2669] ? __kasan_check_read+0x11/0x20 [ 420.965540][ T2669] ? delete_node+0x759/0x7b0 [ 420.970209][ T2669] ? __kasan_check_write+0x14/0x20 [ 420.975874][ T2669] ? idr_replace+0x1c4/0x230 [ 420.980597][ T2669] ? idr_get_next+0x4b0/0x4b0 [ 420.985296][ T2669] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 420.990725][ T2669] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 420.996585][ T2669] css_populate_dir+0x137/0x370 [ 421.001460][ T2669] cgroup_apply_control_enable+0x8b9/0x12f0 [ 421.007689][ T2669] cgroup_apply_control+0x8e/0x7e0 [ 421.013261][ T2669] ? css_next_child+0x160/0x160 [ 421.018255][ T2669] ? stack_trace_save+0x12d/0x1f0 [ 421.023818][ T2669] ? io_schedule+0x120/0x120 [ 421.028412][ T2669] ? kernfs_fop_write_iter+0x15e/0x410 [ 421.034139][ T2669] ? __kasan_check_write+0x14/0x20 [ 421.039446][ T2669] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 421.045250][ T2669] cgroup_subtree_control_write+0xd19/0x1310 [ 421.051430][ T2669] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 421.057405][ T2669] ? __kasan_check_write+0x14/0x20 [ 421.062908][ T2669] ? _copy_from_iter+0x3fb/0xd60 [ 421.067852][ T2669] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 421.074102][ T2669] cgroup_file_write+0x28e/0x590 [ 421.079392][ T2669] ? cgroup_seqfile_stop+0xc0/0xc0 [ 421.084727][ T2669] ? mutex_trylock+0x180/0x180 [ 421.089895][ T2669] ? __kasan_check_write+0x14/0x20 [ 421.095009][ T2669] kernfs_fop_write_iter+0x2d0/0x410 [ 421.100439][ T2669] ? cgroup_seqfile_stop+0xc0/0xc0 [ 421.105832][ T2669] vfs_write+0xc4a/0xf80 [ 421.110067][ T2669] ? slab_free_freelist_hook+0xcc/0x1a0 [ 421.115702][ T2669] ? kernel_write+0x420/0x420 [ 421.120475][ T2669] ? do_sys_openat2+0x397/0x470 [ 421.125516][ T2669] ? __kasan_check_read+0x11/0x20 [ 421.130656][ T2669] ? __fdget_pos+0x27e/0x310 [ 421.135530][ T2669] ksys_write+0x198/0x2c0 [ 421.140473][ T2669] ? __ia32_sys_read+0x90/0x90 [ 421.146503][ T2669] ? debug_smp_processor_id+0x17/0x20 [ 421.152822][ T2669] __x64_sys_write+0x7b/0x90 [ 421.158013][ T2669] do_syscall_64+0x34/0x70 [ 421.162445][ T2669] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 421.168453][ T2669] RIP: 0033:0x7f48883727a9 [ 421.173149][ T2669] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 421.192757][ T2669] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 421.201396][ T2669] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 421.209546][ T2669] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 421.217601][ T2669] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 421.225922][ T2669] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 421.234270][ T2669] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000006 [ 421.242412][ T2669] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 421.327281][ T2668] FAULT_INJECTION: forcing a failure. [ 421.327281][ T2668] name failslab, interval 1, probability 0, space 0, times 0 [ 421.341395][ T2668] CPU: 0 PID: 2668 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 421.352742][ T2668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 421.363199][ T2668] Call Trace: [ 421.366493][ T2668] dump_stack_lvl+0x1e2/0x24b [ 421.371168][ T2668] ? bfq_pos_tree_add_move+0x43e/0x43e [ 421.377058][ T2668] ? selinux_kernfs_init_security+0x1a8/0x760 [ 421.383158][ T2668] dump_stack+0x15/0x17 [ 421.387337][ T2668] should_fail+0x3c0/0x510 [ 421.391966][ T2668] ? __kernfs_new_node+0x99/0x6e0 [ 421.397585][ T2668] __should_failslab+0x9f/0xe0 [ 421.402351][ T2668] should_failslab+0x9/0x20 [ 421.406951][ T2668] __kmalloc_track_caller+0x5f/0x350 [ 421.412324][ T2668] kstrdup_const+0x55/0x90 [ 421.416822][ T2668] __kernfs_new_node+0x99/0x6e0 [ 421.421869][ T2668] ? is_module_text_address+0xe1/0x140 [ 421.427338][ T2668] ? kernfs_new_node+0x170/0x170 [ 421.432535][ T2668] ? ptr_to_hashval+0x60/0x60 [ 421.437269][ T2668] ? mutex_lock+0xb2/0x1e0 [ 421.441687][ T2668] ? snprintf+0xd6/0x120 [ 421.445942][ T2668] ? mutex_unlock+0x29/0xf0 [ 421.450664][ T2668] kernfs_new_node+0x97/0x170 [ 421.455407][ T2668] __kernfs_create_file+0x4a/0x270 [ 421.460887][ T2668] cgroup_addrm_files+0xab8/0xfe0 [ 421.466081][ T2668] ? ____kasan_kmalloc+0xdc/0x110 [ 421.471098][ T2668] ? __kasan_kmalloc+0x9/0x10 [ 421.475774][ T2668] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 421.481414][ T2668] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 421.487563][ T2668] ? delete_node+0x759/0x7b0 [ 421.492428][ T2668] ? __kasan_check_read+0x11/0x20 [ 421.497476][ T2668] ? idr_replace+0x1c4/0x230 [ 421.502065][ T2668] ? idr_get_next+0x4b0/0x4b0 [ 421.506770][ T2668] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 421.511883][ T2668] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 421.517165][ T2668] css_populate_dir+0x137/0x370 [ 421.522093][ T2668] cgroup_apply_control_enable+0x8b9/0x12f0 [ 421.528009][ T2668] cgroup_apply_control+0x8e/0x7e0 [ 421.533109][ T2668] ? css_next_child+0x160/0x160 [ 421.538123][ T2668] ? stack_trace_save+0x12d/0x1f0 [ 421.543143][ T2668] ? io_schedule+0x120/0x120 [ 421.547720][ T2668] ? kernfs_fop_write_iter+0x15e/0x410 [ 421.553190][ T2668] ? __kasan_check_write+0x14/0x20 [ 421.558596][ T2668] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 421.563953][ T2668] cgroup_subtree_control_write+0xd19/0x1310 [ 421.570206][ T2668] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 421.576208][ T2668] ? __kasan_check_write+0x14/0x20 [ 421.581310][ T2668] ? _copy_from_iter+0x3fb/0xd60 [ 421.586330][ T2668] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 421.592431][ T2668] cgroup_file_write+0x28e/0x590 [ 421.597480][ T2668] ? cgroup_seqfile_stop+0xc0/0xc0 [ 421.602859][ T2668] ? mutex_trylock+0x180/0x180 [ 421.607708][ T2668] ? __kasan_check_write+0x14/0x20 [ 421.612856][ T2668] kernfs_fop_write_iter+0x2d0/0x410 [ 421.618432][ T2668] ? cgroup_seqfile_stop+0xc0/0xc0 [ 421.623616][ T2668] vfs_write+0xc4a/0xf80 [ 421.628021][ T2668] ? slab_free_freelist_hook+0xcc/0x1a0 [ 421.633645][ T2668] ? kernel_write+0x420/0x420 [ 421.638438][ T2668] ? do_sys_openat2+0x397/0x470 [ 421.643401][ T2668] ? __kasan_check_read+0x11/0x20 [ 421.648829][ T2668] ? __fdget_pos+0x27e/0x310 [ 421.653422][ T2668] ksys_write+0x198/0x2c0 [ 421.657746][ T2668] ? __ia32_sys_read+0x90/0x90 [ 421.662541][ T2668] ? debug_smp_processor_id+0x17/0x20 [ 421.667901][ T2668] __x64_sys_write+0x7b/0x90 [ 421.672591][ T2668] do_syscall_64+0x34/0x70 [ 421.677014][ T2668] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 421.683141][ T2668] RIP: 0033:0x7f48883727a9 [ 421.687569][ T2668] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 421.707785][ T2668] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 421.716305][ T2668] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 421.724276][ T2668] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 421.734186][ T2668] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 421.742151][ T2668] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 421.750245][ T2668] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000006 [ 421.758332][ T2668] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 421.797086][ T2664] FAULT_INJECTION: forcing a failure. [ 421.797086][ T2664] name failslab, interval 1, probability 0, space 0, times 0 [ 421.809829][ T2664] CPU: 0 PID: 2664 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 421.820352][ T2664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 421.830578][ T2664] Call Trace: [ 421.834000][ T2664] dump_stack_lvl+0x1e2/0x24b [ 421.838666][ T2664] ? bfq_pos_tree_add_move+0x43e/0x43e [ 421.844150][ T2664] ? selinux_kernfs_init_security+0x1a8/0x760 [ 421.850835][ T2664] dump_stack+0x15/0x17 [ 421.855191][ T2664] should_fail+0x3c0/0x510 [ 421.859693][ T2664] ? __kernfs_new_node+0x99/0x6e0 [ 421.864858][ T2664] __should_failslab+0x9f/0xe0 [ 421.870485][ T2664] should_failslab+0x9/0x20 [ 421.874984][ T2664] __kmalloc_track_caller+0x5f/0x350 [ 421.880277][ T2664] kstrdup_const+0x55/0x90 [ 421.884684][ T2664] __kernfs_new_node+0x99/0x6e0 [ 421.889583][ T2664] ? is_module_text_address+0xe1/0x140 [ 421.895231][ T2664] ? kernfs_new_node+0x170/0x170 [ 421.900153][ T2664] ? ptr_to_hashval+0x60/0x60 [ 421.904836][ T2664] ? mutex_lock+0xb2/0x1e0 [ 421.909339][ T2664] ? snprintf+0xd6/0x120 [ 421.913567][ T2664] ? mutex_unlock+0x29/0xf0 [ 421.918082][ T2664] kernfs_new_node+0x97/0x170 [ 421.922843][ T2664] __kernfs_create_file+0x4a/0x270 [ 421.928041][ T2664] cgroup_addrm_files+0xab8/0xfe0 [ 421.933057][ T2664] ? ____kasan_kmalloc+0xdc/0x110 [ 421.938096][ T2664] ? __kasan_kmalloc+0x9/0x10 [ 421.942769][ T2664] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 421.948347][ T2664] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 421.954492][ T2664] ? delete_node+0x759/0x7b0 [ 421.959161][ T2664] ? __kasan_check_read+0x11/0x20 [ 421.964177][ T2664] ? idr_replace+0x1c4/0x230 [ 421.968843][ T2664] ? idr_get_next+0x4b0/0x4b0 [ 421.973516][ T2664] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 421.978531][ T2664] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 421.983905][ T2664] css_populate_dir+0x137/0x370 [ 421.988743][ T2664] cgroup_apply_control_enable+0x8b9/0x12f0 [ 421.994639][ T2664] cgroup_apply_control+0x8e/0x7e0 [ 421.999746][ T2664] ? css_next_child+0x160/0x160 [ 422.004581][ T2664] ? stack_trace_save+0x12d/0x1f0 [ 422.009676][ T2664] ? io_schedule+0x120/0x120 [ 422.014251][ T2664] ? kernfs_fop_write_iter+0x15e/0x410 [ 422.019696][ T2664] ? __kasan_check_write+0x14/0x20 [ 422.025116][ T2664] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 422.030486][ T2664] cgroup_subtree_control_write+0xd19/0x1310 [ 422.036949][ T2664] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 422.043124][ T2664] ? __kasan_check_write+0x14/0x20 [ 422.048583][ T2664] ? _copy_from_iter+0x3fb/0xd60 [ 422.053679][ T2664] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 422.059651][ T2664] cgroup_file_write+0x28e/0x590 [ 422.064754][ T2664] ? cgroup_seqfile_stop+0xc0/0xc0 [ 422.070069][ T2664] ? mutex_trylock+0x180/0x180 [ 422.075007][ T2664] ? __kasan_check_write+0x14/0x20 [ 422.080241][ T2664] kernfs_fop_write_iter+0x2d0/0x410 [ 422.085520][ T2664] ? cgroup_seqfile_stop+0xc0/0xc0 [ 422.090798][ T2664] vfs_write+0xc4a/0xf80 [ 422.095027][ T2664] ? slab_free_freelist_hook+0xcc/0x1a0 [ 422.100557][ T2664] ? kernel_write+0x420/0x420 [ 422.105420][ T2664] ? do_sys_openat2+0x397/0x470 [ 422.110435][ T2664] ? __kasan_check_read+0x11/0x20 [ 422.115818][ T2664] ? __fdget_pos+0x27e/0x310 [ 422.120395][ T2664] ksys_write+0x198/0x2c0 [ 422.124710][ T2664] ? __ia32_sys_read+0x90/0x90 [ 422.129461][ T2664] ? debug_smp_processor_id+0x17/0x20 [ 422.134909][ T2664] __x64_sys_write+0x7b/0x90 [ 422.139662][ T2664] do_syscall_64+0x34/0x70 [ 422.144126][ T2664] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 422.150037][ T2664] RIP: 0033:0x7f48883727a9 [ 422.154527][ T2664] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 422.174138][ T2664] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 422.182631][ T2664] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 422.190617][ T2664] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 422.198691][ T2664] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 422.206769][ T2664] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 422.215004][ T2664] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000004 [ 422.223299][ T2664] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 422.257069][ T2673] FAULT_INJECTION: forcing a failure. [ 422.257069][ T2673] name failslab, interval 1, probability 0, space 0, times 0 [ 422.269913][ T2673] CPU: 0 PID: 2673 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 422.280346][ T2673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 422.290394][ T2673] Call Trace: [ 422.293685][ T2673] dump_stack_lvl+0x1e2/0x24b [ 422.298370][ T2673] ? panic+0x7d7/0x7d7 [ 422.302437][ T2673] ? bfq_pos_tree_add_move+0x43e/0x43e [ 422.307879][ T2673] ? selinux_kernfs_init_security+0x1a8/0x760 [ 422.314115][ T2673] dump_stack+0x15/0x17 [ 422.318344][ T2673] should_fail+0x3c0/0x510 [ 422.322757][ T2673] __should_failslab+0x9f/0xe0 [ 422.327698][ T2673] should_failslab+0x9/0x20 [ 422.332268][ T2673] kmem_cache_alloc+0x3f/0x300 [ 422.337190][ T2673] ? __kernfs_new_node+0xdb/0x6e0 [ 422.342198][ T2673] __kernfs_new_node+0xdb/0x6e0 [ 422.347028][ T2673] ? is_module_text_address+0xe1/0x140 [ 422.352587][ T2673] ? kernfs_new_node+0x170/0x170 [ 422.357707][ T2673] ? ptr_to_hashval+0x60/0x60 [ 422.362989][ T2673] ? arch_stack_walk+0xf8/0x140 [ 422.367819][ T2673] ? snprintf+0xd6/0x120 [ 422.372065][ T2673] kernfs_new_node+0x97/0x170 [ 422.377559][ T2673] __kernfs_create_file+0x4a/0x270 [ 422.382654][ T2673] cgroup_addrm_files+0xab8/0xfe0 [ 422.387682][ T2673] ? ____kasan_kmalloc+0xdc/0x110 [ 422.392688][ T2673] ? __kasan_kmalloc+0x9/0x10 [ 422.397344][ T2673] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 422.402962][ T2673] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 422.409184][ T2673] ? delete_node+0x759/0x7b0 [ 422.413758][ T2673] ? __kasan_check_read+0x11/0x20 [ 422.418762][ T2673] ? delete_node+0x759/0x7b0 [ 422.423415][ T2673] ? __kasan_check_write+0x14/0x20 [ 422.428506][ T2673] ? idr_replace+0x1c4/0x230 [ 422.433074][ T2673] ? idr_get_next+0x4b0/0x4b0 [ 422.438195][ T2673] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 422.443212][ T2673] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 422.448484][ T2673] css_populate_dir+0x137/0x370 [ 422.453322][ T2673] cgroup_apply_control_enable+0x8b9/0x12f0 [ 422.459199][ T2673] cgroup_apply_control+0x8e/0x7e0 [ 422.464303][ T2673] ? css_next_child+0x160/0x160 [ 422.469310][ T2673] ? stack_trace_save+0x12d/0x1f0 [ 422.474318][ T2673] ? io_schedule+0x120/0x120 [ 422.478892][ T2673] ? kernfs_fop_write_iter+0x15e/0x410 [ 422.484367][ T2673] ? __kasan_check_write+0x14/0x20 [ 422.489463][ T2673] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 422.494908][ T2673] cgroup_subtree_control_write+0xd19/0x1310 [ 422.501095][ T2673] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 422.507067][ T2673] ? __kasan_check_write+0x14/0x20 [ 422.512433][ T2673] ? _copy_from_iter+0x3fb/0xd60 [ 422.517381][ T2673] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 422.523690][ T2673] cgroup_file_write+0x28e/0x590 [ 422.528878][ T2673] ? cgroup_seqfile_stop+0xc0/0xc0 [ 422.534082][ T2673] ? mutex_trylock+0x180/0x180 [ 422.539003][ T2673] ? __kasan_check_write+0x14/0x20 [ 422.544542][ T2673] kernfs_fop_write_iter+0x2d0/0x410 [ 422.549815][ T2673] ? cgroup_seqfile_stop+0xc0/0xc0 [ 422.554909][ T2673] vfs_write+0xc4a/0xf80 [ 422.559225][ T2673] ? slab_free_freelist_hook+0xcc/0x1a0 [ 422.564842][ T2673] ? kernel_write+0x420/0x420 [ 422.569587][ T2673] ? do_sys_openat2+0x397/0x470 [ 422.574418][ T2673] ? __kasan_check_read+0x11/0x20 [ 422.579771][ T2673] ? __fdget_pos+0x27e/0x310 [ 422.584341][ T2673] ksys_write+0x198/0x2c0 [ 422.588943][ T2673] ? __ia32_sys_read+0x90/0x90 [ 422.593775][ T2673] ? debug_smp_processor_id+0x17/0x20 [ 422.599345][ T2673] __x64_sys_write+0x7b/0x90 [ 422.604270][ T2673] do_syscall_64+0x34/0x70 [ 422.608852][ T2673] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 422.614760][ T2673] RIP: 0033:0x7f48883727a9 [ 422.620117][ T2673] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 422.639883][ T2673] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 422.648368][ T2673] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 422.656606][ T2673] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 422.664560][ T2673] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 422.672602][ T2673] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 422.681412][ T2673] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000007 [ 422.691326][ T2673] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 422.737288][ T2671] FAULT_INJECTION: forcing a failure. [ 422.737288][ T2671] name failslab, interval 1, probability 0, space 0, times 0 [ 422.750432][ T2671] CPU: 1 PID: 2671 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 422.761188][ T2671] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 422.771424][ T2671] Call Trace: [ 422.774717][ T2671] dump_stack_lvl+0x1e2/0x24b [ 422.779387][ T2671] ? panic+0x7d7/0x7d7 [ 422.783454][ T2671] ? bfq_pos_tree_add_move+0x43e/0x43e [ 422.788932][ T2671] ? selinux_kernfs_init_security+0x1a8/0x760 [ 422.795013][ T2671] dump_stack+0x15/0x17 [ 422.799169][ T2671] should_fail+0x3c0/0x510 [ 422.803578][ T2671] __should_failslab+0x9f/0xe0 [ 422.808528][ T2671] should_failslab+0x9/0x20 [ 422.813148][ T2671] kmem_cache_alloc+0x3f/0x300 [ 422.818165][ T2671] ? __kernfs_new_node+0xdb/0x6e0 [ 422.823368][ T2671] __kernfs_new_node+0xdb/0x6e0 [ 422.828235][ T2671] ? is_module_text_address+0xe1/0x140 [ 422.833774][ T2671] ? kernfs_new_node+0x170/0x170 [ 422.838767][ T2671] ? ptr_to_hashval+0x60/0x60 [ 422.843813][ T2671] ? arch_stack_walk+0xf8/0x140 [ 422.848648][ T2671] ? snprintf+0xd6/0x120 [ 422.852878][ T2671] kernfs_new_node+0x97/0x170 [ 422.857570][ T2671] __kernfs_create_file+0x4a/0x270 [ 422.862757][ T2671] cgroup_addrm_files+0xab8/0xfe0 [ 422.867858][ T2671] ? ____kasan_kmalloc+0xdc/0x110 [ 422.872878][ T2671] ? __kasan_kmalloc+0x9/0x10 [ 422.877545][ T2671] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 422.883077][ T2671] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 422.889543][ T2671] ? delete_node+0x759/0x7b0 [ 422.894242][ T2671] ? __kasan_check_read+0x11/0x20 [ 422.899259][ T2671] ? delete_node+0x759/0x7b0 [ 422.903881][ T2671] ? __kasan_check_write+0x14/0x20 [ 422.909507][ T2671] ? idr_replace+0x1c4/0x230 [ 422.914081][ T2671] ? idr_get_next+0x4b0/0x4b0 [ 422.918923][ T2671] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 422.924035][ T2671] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 422.929304][ T2671] css_populate_dir+0x137/0x370 [ 422.934340][ T2671] cgroup_apply_control_enable+0x8b9/0x12f0 [ 422.940231][ T2671] cgroup_apply_control+0x8e/0x7e0 [ 422.945343][ T2671] ? css_next_child+0x160/0x160 [ 422.950190][ T2671] ? stack_trace_save+0x12d/0x1f0 [ 422.955210][ T2671] ? io_schedule+0x120/0x120 [ 422.959898][ T2671] ? kernfs_fop_write_iter+0x15e/0x410 [ 422.965361][ T2671] ? __kasan_check_write+0x14/0x20 [ 422.970472][ T2671] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 422.975753][ T2671] cgroup_subtree_control_write+0xd19/0x1310 [ 422.981727][ T2671] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 422.987689][ T2671] ? __kasan_check_write+0x14/0x20 [ 422.992796][ T2671] ? _copy_from_iter+0x3fb/0xd60 [ 422.997822][ T2671] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 423.003803][ T2671] cgroup_file_write+0x28e/0x590 [ 423.008977][ T2671] ? cgroup_seqfile_stop+0xc0/0xc0 [ 423.014203][ T2671] ? mutex_trylock+0x180/0x180 [ 423.019243][ T2671] ? __kasan_check_write+0x14/0x20 [ 423.024357][ T2671] kernfs_fop_write_iter+0x2d0/0x410 [ 423.029648][ T2671] ? cgroup_seqfile_stop+0xc0/0xc0 [ 423.035232][ T2671] vfs_write+0xc4a/0xf80 [ 423.039667][ T2671] ? slab_free_freelist_hook+0xcc/0x1a0 [ 423.045559][ T2671] ? kernel_write+0x420/0x420 [ 423.050596][ T2671] ? do_sys_openat2+0x397/0x470 [ 423.055539][ T2671] ? __kasan_check_read+0x11/0x20 [ 423.060647][ T2671] ? __fdget_pos+0x27e/0x310 [ 423.065502][ T2671] ksys_write+0x198/0x2c0 [ 423.069908][ T2671] ? __ia32_sys_read+0x90/0x90 [ 423.074849][ T2671] ? debug_smp_processor_id+0x17/0x20 [ 423.080220][ T2671] __x64_sys_write+0x7b/0x90 [ 423.085011][ T2671] do_syscall_64+0x34/0x70 [ 423.089834][ T2671] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 423.095932][ T2671] RIP: 0033:0x7f48883727a9 [ 423.100350][ T2671] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 423.120542][ T2671] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 423.129114][ T2671] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 423.137163][ T2671] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 423.145419][ T2671] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 423.153404][ T2671] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 423.161860][ T2671] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000004 [ 423.169975][ T2671] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 423.217314][ T2677] FAULT_INJECTION: forcing a failure. [ 423.217314][ T2677] name failslab, interval 1, probability 0, space 0, times 0 [ 423.230190][ T2677] CPU: 1 PID: 2677 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 423.240591][ T2677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 423.250818][ T2677] Call Trace: [ 423.254258][ T2677] dump_stack_lvl+0x1e2/0x24b [ 423.259175][ T2677] ? bfq_pos_tree_add_move+0x43e/0x43e [ 423.265492][ T2677] ? selinux_kernfs_init_security+0x1a8/0x760 [ 423.271686][ T2677] dump_stack+0x15/0x17 [ 423.276044][ T2677] should_fail+0x3c0/0x510 [ 423.280476][ T2677] ? __kernfs_new_node+0x99/0x6e0 [ 423.285534][ T2677] __should_failslab+0x9f/0xe0 [ 423.290438][ T2677] should_failslab+0x9/0x20 [ 423.294950][ T2677] __kmalloc_track_caller+0x5f/0x350 [ 423.300551][ T2677] kstrdup_const+0x55/0x90 [ 423.305294][ T2677] __kernfs_new_node+0x99/0x6e0 [ 423.310358][ T2677] ? is_module_text_address+0xe1/0x140 [ 423.316346][ T2677] ? kernfs_new_node+0x170/0x170 [ 423.321489][ T2677] ? ptr_to_hashval+0x60/0x60 [ 423.326159][ T2677] ? mutex_lock+0xb2/0x1e0 [ 423.330772][ T2677] ? snprintf+0xd6/0x120 [ 423.335080][ T2677] ? mutex_unlock+0x29/0xf0 [ 423.339681][ T2677] kernfs_new_node+0x97/0x170 [ 423.344645][ T2677] __kernfs_create_file+0x4a/0x270 [ 423.349769][ T2677] cgroup_addrm_files+0xab8/0xfe0 [ 423.355058][ T2677] ? ____kasan_kmalloc+0xdc/0x110 [ 423.360418][ T2677] ? __kasan_kmalloc+0x9/0x10 [ 423.365411][ T2677] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 423.371088][ T2677] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 423.378990][ T2677] ? delete_node+0x759/0x7b0 [ 423.383923][ T2677] ? __kasan_check_read+0x11/0x20 [ 423.390130][ T2677] ? idr_replace+0x1c4/0x230 [ 423.394727][ T2677] ? idr_get_next+0x4b0/0x4b0 [ 423.399522][ T2677] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 423.404666][ T2677] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 423.410045][ T2677] css_populate_dir+0x137/0x370 [ 423.414979][ T2677] cgroup_apply_control_enable+0x8b9/0x12f0 [ 423.421043][ T2677] cgroup_apply_control+0x8e/0x7e0 [ 423.426286][ T2677] ? css_next_child+0x160/0x160 [ 423.431318][ T2677] ? io_schedule+0x120/0x120 [ 423.436064][ T2677] ? kernfs_fop_write_iter+0x15e/0x410 [ 423.441584][ T2677] ? __kasan_check_write+0x14/0x20 [ 423.446701][ T2677] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 423.452571][ T2677] cgroup_subtree_control_write+0xd19/0x1310 [ 423.458821][ T2677] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 423.465188][ T2677] ? __kasan_check_write+0x14/0x20 [ 423.470313][ T2677] ? _copy_from_iter+0x3fb/0xd60 [ 423.475354][ T2677] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 423.481736][ T2677] cgroup_file_write+0x28e/0x590 [ 423.486859][ T2677] ? cgroup_seqfile_stop+0xc0/0xc0 [ 423.492109][ T2677] ? mutex_trylock+0x180/0x180 [ 423.497049][ T2677] ? __kasan_check_write+0x14/0x20 [ 423.502295][ T2677] kernfs_fop_write_iter+0x2d0/0x410 [ 423.507871][ T2677] ? cgroup_seqfile_stop+0xc0/0xc0 [ 423.513691][ T2677] vfs_write+0xc4a/0xf80 [ 423.518283][ T2677] ? kernel_write+0x420/0x420 [ 423.523199][ T2677] ? do_sys_openat2+0x397/0x470 [ 423.528367][ T2677] ? __kasan_check_read+0x11/0x20 [ 423.533611][ T2677] ? __fdget_pos+0x27e/0x310 [ 423.538720][ T2677] ksys_write+0x198/0x2c0 [ 423.543227][ T2677] ? __kasan_check_write+0x14/0x20 [ 423.548410][ T2677] ? __ia32_sys_read+0x90/0x90 [ 423.553176][ T2677] ? debug_smp_processor_id+0x17/0x20 [ 423.558631][ T2677] __x64_sys_write+0x7b/0x90 [ 423.563206][ T2677] do_syscall_64+0x34/0x70 [ 423.567615][ T2677] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 423.573642][ T2677] RIP: 0033:0x7f48883727a9 [ 423.578043][ T2677] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 423.597805][ T2677] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 423.606418][ T2677] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 423.614656][ T2677] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 423.623048][ T2677] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 423.632078][ T2677] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 423.640329][ T2677] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000005 [ 423.648927][ T2677] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 423.687161][ T2674] FAULT_INJECTION: forcing a failure. [ 423.687161][ T2674] name failslab, interval 1, probability 0, space 0, times 0 [ 423.701028][ T2674] CPU: 0 PID: 2674 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 423.712244][ T2674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 423.722577][ T2674] Call Trace: [ 423.725996][ T2674] dump_stack_lvl+0x1e2/0x24b [ 423.730892][ T2674] ? bfq_pos_tree_add_move+0x43e/0x43e [ 423.736427][ T2674] ? selinux_kernfs_init_security+0x1a8/0x760 [ 423.742491][ T2674] dump_stack+0x15/0x17 [ 423.747369][ T2674] should_fail+0x3c0/0x510 [ 423.751860][ T2674] ? __kernfs_new_node+0x99/0x6e0 [ 423.757230][ T2674] __should_failslab+0x9f/0xe0 [ 423.761975][ T2674] should_failslab+0x9/0x20 [ 423.766548][ T2674] __kmalloc_track_caller+0x5f/0x350 [ 423.772168][ T2674] kstrdup_const+0x55/0x90 [ 423.776675][ T2674] __kernfs_new_node+0x99/0x6e0 [ 423.781734][ T2674] ? is_module_text_address+0xe1/0x140 [ 423.787335][ T2674] ? kernfs_new_node+0x170/0x170 [ 423.792339][ T2674] ? ptr_to_hashval+0x60/0x60 [ 423.797300][ T2674] ? mutex_lock+0xb2/0x1e0 [ 423.801727][ T2674] ? snprintf+0xd6/0x120 [ 423.805968][ T2674] ? mutex_unlock+0x29/0xf0 [ 423.810491][ T2674] kernfs_new_node+0x97/0x170 [ 423.815261][ T2674] __kernfs_create_file+0x4a/0x270 [ 423.820473][ T2674] cgroup_addrm_files+0xab8/0xfe0 [ 423.825595][ T2674] ? ____kasan_kmalloc+0xdc/0x110 [ 423.830715][ T2674] ? __kasan_kmalloc+0x9/0x10 [ 423.835464][ T2674] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 423.841196][ T2674] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 423.848643][ T2674] ? delete_node+0x759/0x7b0 [ 423.853214][ T2674] ? __kasan_check_read+0x11/0x20 [ 423.858239][ T2674] ? idr_replace+0x1c4/0x230 [ 423.862812][ T2674] ? idr_get_next+0x4b0/0x4b0 [ 423.867524][ T2674] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 423.872550][ T2674] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 423.877760][ T2674] css_populate_dir+0x137/0x370 [ 423.882607][ T2674] cgroup_apply_control_enable+0x8b9/0x12f0 [ 423.888492][ T2674] cgroup_apply_control+0x8e/0x7e0 [ 423.893589][ T2674] ? css_next_child+0x160/0x160 [ 423.898421][ T2674] ? stack_trace_save+0x12d/0x1f0 [ 423.903599][ T2674] ? io_schedule+0x120/0x120 [ 423.908525][ T2674] ? kernfs_fop_write_iter+0x15e/0x410 [ 423.914235][ T2674] ? __kasan_check_write+0x14/0x20 [ 423.919413][ T2674] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 423.924765][ T2674] cgroup_subtree_control_write+0xd19/0x1310 [ 423.930739][ T2674] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 423.936705][ T2674] ? __kasan_check_write+0x14/0x20 [ 423.941883][ T2674] ? _copy_from_iter+0x3fb/0xd60 [ 423.946802][ T2674] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 423.952814][ T2674] cgroup_file_write+0x28e/0x590 [ 423.957732][ T2674] ? cgroup_seqfile_stop+0xc0/0xc0 [ 423.962826][ T2674] ? mutex_trylock+0x180/0x180 [ 423.967575][ T2674] ? __kasan_check_write+0x14/0x20 [ 423.972667][ T2674] kernfs_fop_write_iter+0x2d0/0x410 [ 423.978039][ T2674] ? cgroup_seqfile_stop+0xc0/0xc0 [ 423.983244][ T2674] vfs_write+0xc4a/0xf80 [ 423.987471][ T2674] ? slab_free_freelist_hook+0xcc/0x1a0 [ 423.993032][ T2674] ? kernel_write+0x420/0x420 [ 423.997691][ T2674] ? do_sys_openat2+0x397/0x470 [ 424.003215][ T2674] ? __kasan_check_read+0x11/0x20 [ 424.008228][ T2674] ? __fdget_pos+0x27e/0x310 [ 424.012824][ T2674] ksys_write+0x198/0x2c0 [ 424.017136][ T2674] ? __ia32_sys_read+0x90/0x90 [ 424.021904][ T2674] ? debug_smp_processor_id+0x17/0x20 [ 424.027449][ T2674] __x64_sys_write+0x7b/0x90 [ 424.032122][ T2674] do_syscall_64+0x34/0x70 [ 424.036529][ T2674] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 424.042515][ T2674] RIP: 0033:0x7f48883727a9 [ 424.047041][ T2674] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 424.066917][ T2674] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 424.075315][ T2674] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 424.083274][ T2674] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 424.091317][ T2674] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 424.099295][ T2674] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 424.107277][ T2674] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000007 [ 424.115438][ T2674] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 424.157065][ T2667] FAULT_INJECTION: forcing a failure. [ 424.157065][ T2667] name failslab, interval 1, probability 0, space 0, times 0 [ 424.171047][ T2667] CPU: 1 PID: 2667 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 424.181796][ T2667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 424.192509][ T2667] Call Trace: [ 424.195810][ T2667] dump_stack_lvl+0x1e2/0x24b [ 424.200475][ T2667] ? bfq_pos_tree_add_move+0x43e/0x43e [ 424.205926][ T2667] ? selinux_kernfs_init_security+0x1a8/0x760 [ 424.212071][ T2667] dump_stack+0x15/0x17 [ 424.216382][ T2667] should_fail+0x3c0/0x510 [ 424.220795][ T2667] ? __kernfs_new_node+0x99/0x6e0 [ 424.226133][ T2667] __should_failslab+0x9f/0xe0 [ 424.231017][ T2667] should_failslab+0x9/0x20 [ 424.235512][ T2667] __kmalloc_track_caller+0x5f/0x350 [ 424.240898][ T2667] kstrdup_const+0x55/0x90 [ 424.245305][ T2667] __kernfs_new_node+0x99/0x6e0 [ 424.250155][ T2667] ? is_module_text_address+0xe1/0x140 [ 424.255710][ T2667] ? kernfs_new_node+0x170/0x170 [ 424.260762][ T2667] ? ptr_to_hashval+0x60/0x60 [ 424.265516][ T2667] ? arch_stack_walk+0xf8/0x140 [ 424.270371][ T2667] ? snprintf+0xd6/0x120 [ 424.274972][ T2667] kernfs_new_node+0x97/0x170 [ 424.279651][ T2667] __kernfs_create_file+0x4a/0x270 [ 424.284858][ T2667] cgroup_addrm_files+0xab8/0xfe0 [ 424.290013][ T2667] ? ____kasan_kmalloc+0xdc/0x110 [ 424.296291][ T2667] ? __kasan_kmalloc+0x9/0x10 [ 424.301163][ T2667] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 424.306965][ T2667] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 424.313385][ T2667] ? delete_node+0x759/0x7b0 [ 424.318177][ T2667] ? __kasan_check_read+0x11/0x20 [ 424.323383][ T2667] ? delete_node+0x759/0x7b0 [ 424.328459][ T2667] ? __kasan_check_write+0x14/0x20 [ 424.333878][ T2667] ? idr_replace+0x1c4/0x230 [ 424.338580][ T2667] ? idr_get_next+0x4b0/0x4b0 [ 424.343249][ T2667] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 424.348329][ T2667] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 424.353541][ T2667] css_populate_dir+0x137/0x370 [ 424.358566][ T2667] cgroup_apply_control_enable+0x8b9/0x12f0 [ 424.364628][ T2667] cgroup_apply_control+0x8e/0x7e0 [ 424.369742][ T2667] ? css_next_child+0x160/0x160 [ 424.374670][ T2667] ? stack_trace_save+0x12d/0x1f0 [ 424.379771][ T2667] ? io_schedule+0x120/0x120 [ 424.385056][ T2667] ? kernfs_fop_write_iter+0x15e/0x410 [ 424.390636][ T2667] ? __kasan_check_write+0x14/0x20 [ 424.395873][ T2667] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 424.401178][ T2667] cgroup_subtree_control_write+0xd19/0x1310 [ 424.407166][ T2667] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 424.413308][ T2667] ? __kasan_check_write+0x14/0x20 [ 424.418559][ T2667] ? _copy_from_iter+0x3fb/0xd60 [ 424.423630][ T2667] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 424.429841][ T2667] cgroup_file_write+0x28e/0x590 [ 424.435198][ T2667] ? cgroup_seqfile_stop+0xc0/0xc0 [ 424.440851][ T2667] ? mutex_trylock+0x180/0x180 [ 424.445637][ T2667] ? __kasan_check_write+0x14/0x20 [ 424.450743][ T2667] kernfs_fop_write_iter+0x2d0/0x410 [ 424.456315][ T2667] ? cgroup_seqfile_stop+0xc0/0xc0 [ 424.461435][ T2667] vfs_write+0xc4a/0xf80 [ 424.465681][ T2667] ? slab_free_freelist_hook+0xcc/0x1a0 [ 424.471430][ T2667] ? kernel_write+0x420/0x420 [ 424.476431][ T2667] ? do_sys_openat2+0x397/0x470 [ 424.481544][ T2667] ? __kasan_check_read+0x11/0x20 [ 424.486599][ T2667] ? __fdget_pos+0x27e/0x310 [ 424.491411][ T2667] ksys_write+0x198/0x2c0 [ 424.496062][ T2667] ? __ia32_sys_read+0x90/0x90 [ 424.501040][ T2667] ? debug_smp_processor_id+0x17/0x20 [ 424.506495][ T2667] __x64_sys_write+0x7b/0x90 [ 424.511380][ T2667] do_syscall_64+0x34/0x70 [ 424.515883][ T2667] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 424.522213][ T2667] RIP: 0033:0x7f48883727a9 [ 424.526895][ T2667] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 424.547726][ T2667] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 424.556733][ T2667] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 424.564901][ T2667] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 424.572876][ T2667] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 424.581125][ T2667] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 424.589090][ T2667] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000005 [ 424.597734][ T2667] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 424.637072][ T2678] FAULT_INJECTION: forcing a failure. [ 424.637072][ T2678] name failslab, interval 1, probability 0, space 0, times 0 [ 424.650125][ T2678] CPU: 1 PID: 2678 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 424.660949][ T2678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 424.670998][ T2678] Call Trace: [ 424.674304][ T2678] dump_stack_lvl+0x1e2/0x24b [ 424.678982][ T2678] ? bfq_pos_tree_add_move+0x43e/0x43e [ 424.684441][ T2678] ? selinux_kernfs_init_security+0x1a8/0x760 [ 424.690924][ T2678] dump_stack+0x15/0x17 [ 424.695252][ T2678] should_fail+0x3c0/0x510 [ 424.699658][ T2678] ? __kernfs_new_node+0x99/0x6e0 [ 424.704806][ T2678] __should_failslab+0x9f/0xe0 [ 424.710139][ T2678] should_failslab+0x9/0x20 [ 424.714647][ T2678] __kmalloc_track_caller+0x5f/0x350 [ 424.719926][ T2678] kstrdup_const+0x55/0x90 [ 424.724335][ T2678] __kernfs_new_node+0x99/0x6e0 [ 424.729181][ T2678] ? is_module_text_address+0xe1/0x140 [ 424.734626][ T2678] ? kernfs_new_node+0x170/0x170 [ 424.739546][ T2678] ? ptr_to_hashval+0x60/0x60 [ 424.744212][ T2678] ? mutex_lock+0xb2/0x1e0 [ 424.748628][ T2678] ? snprintf+0xd6/0x120 [ 424.753311][ T2678] ? mutex_unlock+0x29/0xf0 [ 424.757998][ T2678] kernfs_new_node+0x97/0x170 [ 424.762673][ T2678] __kernfs_create_file+0x4a/0x270 [ 424.768012][ T2678] cgroup_addrm_files+0xab8/0xfe0 [ 424.773167][ T2678] ? ____kasan_kmalloc+0xdc/0x110 [ 424.778299][ T2678] ? __kasan_kmalloc+0x9/0x10 [ 424.782982][ T2678] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 424.788541][ T2678] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 424.794685][ T2678] ? delete_node+0x759/0x7b0 [ 424.799353][ T2678] ? __kasan_check_read+0x11/0x20 [ 424.804374][ T2678] ? idr_replace+0x1c4/0x230 [ 424.809037][ T2678] ? idr_get_next+0x4b0/0x4b0 [ 424.813842][ T2678] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 424.819083][ T2678] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 424.824281][ T2678] css_populate_dir+0x137/0x370 [ 424.829244][ T2678] cgroup_apply_control_enable+0x8b9/0x12f0 [ 424.835303][ T2678] cgroup_apply_control+0x8e/0x7e0 [ 424.840495][ T2678] ? css_next_child+0x160/0x160 [ 424.845339][ T2678] ? stack_trace_save+0x12d/0x1f0 [ 424.850356][ T2678] ? io_schedule+0x120/0x120 [ 424.854936][ T2678] ? kernfs_fop_write_iter+0x15e/0x410 [ 424.860591][ T2678] ? __kasan_check_write+0x14/0x20 [ 424.865863][ T2678] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 424.871327][ T2678] cgroup_subtree_control_write+0xd19/0x1310 [ 424.877379][ T2678] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 424.883371][ T2678] ? __kasan_check_write+0x14/0x20 [ 424.888472][ T2678] ? _copy_from_iter+0x3fb/0xd60 [ 424.893396][ T2678] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 424.899376][ T2678] cgroup_file_write+0x28e/0x590 [ 424.904302][ T2678] ? cgroup_seqfile_stop+0xc0/0xc0 [ 424.909570][ T2678] ? mutex_trylock+0x180/0x180 [ 424.914314][ T2678] ? __kasan_check_write+0x14/0x20 [ 424.919454][ T2678] kernfs_fop_write_iter+0x2d0/0x410 [ 424.924723][ T2678] ? cgroup_seqfile_stop+0xc0/0xc0 [ 424.929820][ T2678] vfs_write+0xc4a/0xf80 [ 424.934041][ T2678] ? slab_free_freelist_hook+0xcc/0x1a0 [ 424.939580][ T2678] ? kernel_write+0x420/0x420 [ 424.944323][ T2678] ? do_sys_openat2+0x397/0x470 [ 424.949172][ T2678] ? __kasan_check_read+0x11/0x20 [ 424.954275][ T2678] ? __fdget_pos+0x27e/0x310 [ 424.959023][ T2678] ksys_write+0x198/0x2c0 [ 424.963353][ T2678] ? __kasan_check_write+0x14/0x20 [ 424.969058][ T2678] ? __ia32_sys_read+0x90/0x90 [ 424.973815][ T2678] ? debug_smp_processor_id+0x17/0x20 [ 424.979173][ T2678] __x64_sys_write+0x7b/0x90 [ 424.983851][ T2678] do_syscall_64+0x34/0x70 [ 424.988359][ T2678] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 424.994503][ T2678] RIP: 0033:0x7f48883727a9 [ 424.998996][ T2678] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 425.018597][ T2678] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 425.027097][ T2678] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 425.035242][ T2678] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 425.043473][ T2678] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 425.051662][ T2678] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 425.059760][ T2678] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000006 [ 425.067905][ T2678] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 425.107108][ T2675] FAULT_INJECTION: forcing a failure. [ 425.107108][ T2675] name failslab, interval 1, probability 0, space 0, times 0 [ 425.120076][ T2675] CPU: 0 PID: 2675 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 425.130640][ T2675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 425.141341][ T2675] Call Trace: [ 425.145207][ T2675] dump_stack_lvl+0x1e2/0x24b [ 425.150069][ T2675] ? bfq_pos_tree_add_move+0x43e/0x43e [ 425.156078][ T2675] ? selinux_kernfs_init_security+0x1a8/0x760 [ 425.162262][ T2675] dump_stack+0x15/0x17 [ 425.166522][ T2675] should_fail+0x3c0/0x510 [ 425.171022][ T2675] ? __kernfs_new_node+0x99/0x6e0 [ 425.176135][ T2675] __should_failslab+0x9f/0xe0 [ 425.181061][ T2675] should_failslab+0x9/0x20 [ 425.185779][ T2675] __kmalloc_track_caller+0x5f/0x350 [ 425.191172][ T2675] kstrdup_const+0x55/0x90 [ 425.195778][ T2675] __kernfs_new_node+0x99/0x6e0 [ 425.200613][ T2675] ? is_module_text_address+0xe1/0x140 [ 425.206105][ T2675] ? kernfs_new_node+0x170/0x170 [ 425.211024][ T2675] ? ptr_to_hashval+0x60/0x60 [ 425.215699][ T2675] ? mutex_lock+0xb2/0x1e0 [ 425.220136][ T2675] ? snprintf+0xd6/0x120 [ 425.224452][ T2675] ? mutex_unlock+0x29/0xf0 [ 425.228929][ T2675] kernfs_new_node+0x97/0x170 [ 425.233588][ T2675] __kernfs_create_file+0x4a/0x270 [ 425.238970][ T2675] cgroup_addrm_files+0xab8/0xfe0 [ 425.244122][ T2675] ? ____kasan_kmalloc+0xdc/0x110 [ 425.249139][ T2675] ? __kasan_kmalloc+0x9/0x10 [ 425.253810][ T2675] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 425.259429][ T2675] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 425.265566][ T2675] ? delete_node+0x759/0x7b0 [ 425.270139][ T2675] ? __kasan_check_read+0x11/0x20 [ 425.275331][ T2675] ? idr_replace+0x1c4/0x230 [ 425.279926][ T2675] ? idr_get_next+0x4b0/0x4b0 [ 425.284678][ T2675] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 425.289694][ T2675] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 425.295249][ T2675] css_populate_dir+0x137/0x370 [ 425.300084][ T2675] cgroup_apply_control_enable+0x8b9/0x12f0 [ 425.306050][ T2675] cgroup_apply_control+0x8e/0x7e0 [ 425.311236][ T2675] ? css_next_child+0x160/0x160 [ 425.316207][ T2675] ? stack_trace_save+0x12d/0x1f0 [ 425.321471][ T2675] ? io_schedule+0x120/0x120 [ 425.326108][ T2675] ? kernfs_fop_write_iter+0x15e/0x410 [ 425.331810][ T2675] ? __kasan_check_write+0x14/0x20 [ 425.337009][ T2675] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 425.342448][ T2675] cgroup_subtree_control_write+0xd19/0x1310 [ 425.348411][ T2675] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 425.354857][ T2675] ? __kasan_check_write+0x14/0x20 [ 425.359965][ T2675] ? _copy_from_iter+0x3fb/0xd60 [ 425.364920][ T2675] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 425.370891][ T2675] cgroup_file_write+0x28e/0x590 [ 425.376073][ T2675] ? cgroup_seqfile_stop+0xc0/0xc0 [ 425.381427][ T2675] ? mutex_trylock+0x180/0x180 [ 425.386452][ T2675] ? __kasan_check_write+0x14/0x20 [ 425.391570][ T2675] kernfs_fop_write_iter+0x2d0/0x410 [ 425.396926][ T2675] ? cgroup_seqfile_stop+0xc0/0xc0 [ 425.402115][ T2675] vfs_write+0xc4a/0xf80 [ 425.406536][ T2675] ? slab_free_freelist_hook+0xcc/0x1a0 [ 425.412100][ T2675] ? kernel_write+0x420/0x420 [ 425.416766][ T2675] ? do_sys_openat2+0x397/0x470 [ 425.421603][ T2675] ? __kasan_check_read+0x11/0x20 [ 425.426638][ T2675] ? __fdget_pos+0x27e/0x310 [ 425.431401][ T2675] ksys_write+0x198/0x2c0 [ 425.436163][ T2675] ? kvm_sched_clock_read+0x18/0x40 [ 425.441396][ T2675] ? __ia32_sys_read+0x90/0x90 [ 425.446170][ T2675] ? debug_smp_processor_id+0x17/0x20 [ 425.451539][ T2675] __x64_sys_write+0x7b/0x90 [ 425.456113][ T2675] do_syscall_64+0x34/0x70 [ 425.460533][ T2675] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 425.466501][ T2675] RIP: 0033:0x7f48883727a9 [ 425.470900][ T2675] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 425.490667][ T2675] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 425.499117][ T2675] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 425.507450][ T2675] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 425.515405][ T2675] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 425.523739][ T2675] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 425.531806][ T2675] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000005 [ 425.540169][ T2675] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 425.587390][ T2682] FAULT_INJECTION: forcing a failure. [ 425.587390][ T2682] name failslab, interval 1, probability 0, space 0, times 0 [ 425.600682][ T2682] CPU: 0 PID: 2682 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 425.611221][ T2682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 425.621393][ T2682] Call Trace: [ 425.624776][ T2682] dump_stack_lvl+0x1e2/0x24b [ 425.629711][ T2682] ? panic+0x7d7/0x7d7 [ 425.633875][ T2682] ? bfq_pos_tree_add_move+0x43e/0x43e [ 425.639691][ T2682] ? selinux_kernfs_init_security+0x1a8/0x760 [ 425.646000][ T2682] dump_stack+0x15/0x17 [ 425.650430][ T2682] should_fail+0x3c0/0x510 [ 425.654960][ T2682] __should_failslab+0x9f/0xe0 [ 425.659841][ T2682] should_failslab+0x9/0x20 [ 425.664598][ T2682] kmem_cache_alloc+0x3f/0x300 [ 425.669663][ T2682] ? __kernfs_new_node+0xdb/0x6e0 [ 425.674686][ T2682] __kernfs_new_node+0xdb/0x6e0 [ 425.679531][ T2682] ? is_module_text_address+0xe1/0x140 [ 425.685195][ T2682] ? kernfs_new_node+0x170/0x170 [ 425.690632][ T2682] ? ptr_to_hashval+0x60/0x60 [ 425.695393][ T2682] ? arch_stack_walk+0xf8/0x140 [ 425.700419][ T2682] ? snprintf+0xd6/0x120 [ 425.704661][ T2682] kernfs_new_node+0x97/0x170 [ 425.709610][ T2682] __kernfs_create_file+0x4a/0x270 [ 425.714843][ T2682] cgroup_addrm_files+0xab8/0xfe0 [ 425.719948][ T2682] ? ____kasan_kmalloc+0xdc/0x110 [ 425.725091][ T2682] ? __kasan_kmalloc+0x9/0x10 [ 425.729903][ T2682] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 425.735564][ T2682] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 425.741834][ T2682] ? delete_node+0x759/0x7b0 [ 425.746433][ T2682] ? __kasan_check_read+0x11/0x20 [ 425.751443][ T2682] ? delete_node+0x759/0x7b0 [ 425.756050][ T2682] ? __kasan_check_write+0x14/0x20 [ 425.761244][ T2682] ? idr_replace+0x1c4/0x230 [ 425.765822][ T2682] ? idr_get_next+0x4b0/0x4b0 [ 425.770486][ T2682] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 425.775624][ T2682] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 425.780992][ T2682] css_populate_dir+0x137/0x370 [ 425.785923][ T2682] cgroup_apply_control_enable+0x8b9/0x12f0 [ 425.792100][ T2682] cgroup_apply_control+0x8e/0x7e0 [ 425.797365][ T2682] ? css_next_child+0x160/0x160 [ 425.802338][ T2682] ? stack_trace_save+0x12d/0x1f0 [ 425.807469][ T2682] ? io_schedule+0x120/0x120 [ 425.812146][ T2682] ? kernfs_fop_write_iter+0x15e/0x410 [ 425.817781][ T2682] ? __kasan_check_write+0x14/0x20 [ 425.823243][ T2682] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 425.829087][ T2682] cgroup_subtree_control_write+0xd19/0x1310 [ 425.835308][ T2682] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 425.841593][ T2682] ? __kasan_check_write+0x14/0x20 [ 425.847154][ T2682] ? _copy_from_iter+0x3fb/0xd60 [ 425.852329][ T2682] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 425.858476][ T2682] cgroup_file_write+0x28e/0x590 [ 425.863602][ T2682] ? cgroup_seqfile_stop+0xc0/0xc0 [ 425.868984][ T2682] ? mutex_trylock+0x180/0x180 [ 425.874010][ T2682] ? __kasan_check_write+0x14/0x20 [ 425.879208][ T2682] kernfs_fop_write_iter+0x2d0/0x410 [ 425.884514][ T2682] ? cgroup_seqfile_stop+0xc0/0xc0 [ 425.889642][ T2682] vfs_write+0xc4a/0xf80 [ 425.893888][ T2682] ? slab_free_freelist_hook+0xcc/0x1a0 [ 425.899460][ T2682] ? kernel_write+0x420/0x420 [ 425.904144][ T2682] ? do_sys_openat2+0x397/0x470 [ 425.908985][ T2682] ? __kasan_check_read+0x11/0x20 [ 425.914195][ T2682] ? __fdget_pos+0x27e/0x310 [ 425.918859][ T2682] ksys_write+0x198/0x2c0 [ 425.923199][ T2682] ? __ia32_sys_read+0x90/0x90 [ 425.927953][ T2682] ? debug_smp_processor_id+0x17/0x20 [ 425.933314][ T2682] __x64_sys_write+0x7b/0x90 [ 425.938070][ T2682] do_syscall_64+0x34/0x70 [ 425.942647][ T2682] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 425.948528][ T2682] RIP: 0033:0x7f48883727a9 [ 425.953014][ T2682] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 425.972948][ T2682] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 425.981710][ T2682] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 425.989808][ T2682] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 425.998060][ T2682] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 426.006111][ T2682] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 426.014427][ T2682] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000006 [ 426.022590][ T2682] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 426.077215][ T2680] FAULT_INJECTION: forcing a failure. [ 426.077215][ T2680] name failslab, interval 1, probability 0, space 0, times 0 [ 426.090359][ T2680] CPU: 1 PID: 2680 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 426.100853][ T2680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 426.111206][ T2680] Call Trace: [ 426.114689][ T2680] dump_stack_lvl+0x1e2/0x24b [ 426.119406][ T2680] ? bfq_pos_tree_add_move+0x43e/0x43e [ 426.124944][ T2680] ? selinux_kernfs_init_security+0x1a8/0x760 [ 426.131029][ T2680] dump_stack+0x15/0x17 [ 426.135271][ T2680] should_fail+0x3c0/0x510 [ 426.139871][ T2680] ? __kernfs_new_node+0x99/0x6e0 [ 426.145082][ T2680] __should_failslab+0x9f/0xe0 [ 426.149935][ T2680] should_failslab+0x9/0x20 [ 426.154431][ T2680] __kmalloc_track_caller+0x5f/0x350 [ 426.160005][ T2680] kstrdup_const+0x55/0x90 [ 426.164416][ T2680] __kernfs_new_node+0x99/0x6e0 [ 426.169258][ T2680] ? is_module_text_address+0xe1/0x140 [ 426.174746][ T2680] ? kernfs_new_node+0x170/0x170 [ 426.179672][ T2680] ? ptr_to_hashval+0x60/0x60 [ 426.184528][ T2680] ? mutex_lock+0xb2/0x1e0 [ 426.188959][ T2680] ? snprintf+0xd6/0x120 [ 426.193374][ T2680] ? mutex_unlock+0x29/0xf0 [ 426.197852][ T2680] kernfs_new_node+0x97/0x170 [ 426.202542][ T2680] __kernfs_create_file+0x4a/0x270 [ 426.207726][ T2680] cgroup_addrm_files+0xab8/0xfe0 [ 426.212834][ T2680] ? ____kasan_kmalloc+0xdc/0x110 [ 426.217846][ T2680] ? __kasan_kmalloc+0x9/0x10 [ 426.222699][ T2680] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 426.228462][ T2680] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 426.234823][ T2680] ? delete_node+0x759/0x7b0 [ 426.239408][ T2680] ? __kasan_check_read+0x11/0x20 [ 426.244574][ T2680] ? idr_replace+0x1c4/0x230 [ 426.249194][ T2680] ? idr_get_next+0x4b0/0x4b0 [ 426.253889][ T2680] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 426.258913][ T2680] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 426.264191][ T2680] css_populate_dir+0x137/0x370 [ 426.269102][ T2680] cgroup_apply_control_enable+0x8b9/0x12f0 [ 426.275126][ T2680] cgroup_apply_control+0x8e/0x7e0 [ 426.280459][ T2680] ? css_next_child+0x160/0x160 [ 426.285349][ T2680] ? io_schedule+0x120/0x120 [ 426.290035][ T2680] ? kernfs_fop_write_iter+0x15e/0x410 [ 426.295589][ T2680] ? __kasan_check_write+0x14/0x20 [ 426.300782][ T2680] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 426.306510][ T2680] cgroup_subtree_control_write+0xd19/0x1310 [ 426.312491][ T2680] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 426.318591][ T2680] ? __kasan_check_write+0x14/0x20 [ 426.323818][ T2680] ? _copy_from_iter+0x3fb/0xd60 [ 426.328896][ T2680] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 426.335093][ T2680] cgroup_file_write+0x28e/0x590 [ 426.340360][ T2680] ? cgroup_seqfile_stop+0xc0/0xc0 [ 426.345472][ T2680] ? mutex_trylock+0x180/0x180 [ 426.350236][ T2680] ? __kasan_check_write+0x14/0x20 [ 426.355373][ T2680] kernfs_fop_write_iter+0x2d0/0x410 [ 426.360664][ T2680] ? cgroup_seqfile_stop+0xc0/0xc0 [ 426.365798][ T2680] vfs_write+0xc4a/0xf80 [ 426.370049][ T2680] ? kernel_write+0x420/0x420 [ 426.374711][ T2680] ? do_sys_openat2+0x397/0x470 [ 426.379545][ T2680] ? __kasan_check_read+0x11/0x20 [ 426.384570][ T2680] ? __fdget_pos+0x27e/0x310 [ 426.389232][ T2680] ksys_write+0x198/0x2c0 [ 426.393579][ T2680] ? __ia32_sys_read+0x90/0x90 [ 426.398325][ T2680] ? debug_smp_processor_id+0x17/0x20 [ 426.403770][ T2680] __x64_sys_write+0x7b/0x90 [ 426.408346][ T2680] do_syscall_64+0x34/0x70 [ 426.412829][ T2680] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 426.418693][ T2680] RIP: 0033:0x7f48883727a9 [ 426.423354][ T2680] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 426.443579][ T2680] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 426.451986][ T2680] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 426.459978][ T2680] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 426.468114][ T2680] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 426.476435][ T2680] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 426.484794][ T2680] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000006 [ 426.493038][ T2680] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 426.547455][ T2683] FAULT_INJECTION: forcing a failure. [ 426.547455][ T2683] name failslab, interval 1, probability 0, space 0, times 0 [ 426.560825][ T2683] CPU: 0 PID: 2683 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 426.571459][ T2683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 426.581540][ T2683] Call Trace: [ 426.584966][ T2683] dump_stack_lvl+0x1e2/0x24b [ 426.589657][ T2683] ? panic+0x7d7/0x7d7 [ 426.593723][ T2683] ? bfq_pos_tree_add_move+0x43e/0x43e [ 426.599195][ T2683] ? selinux_kernfs_init_security+0x1a8/0x760 [ 426.605251][ T2683] dump_stack+0x15/0x17 [ 426.609392][ T2683] should_fail+0x3c0/0x510 [ 426.614262][ T2683] __should_failslab+0x9f/0xe0 [ 426.619013][ T2683] should_failslab+0x9/0x20 [ 426.623708][ T2683] kmem_cache_alloc+0x3f/0x300 [ 426.628455][ T2683] ? __kernfs_new_node+0xdb/0x6e0 [ 426.634249][ T2683] __kernfs_new_node+0xdb/0x6e0 [ 426.639454][ T2683] ? is_module_text_address+0xe1/0x140 [ 426.644892][ T2683] ? kernfs_new_node+0x170/0x170 [ 426.649808][ T2683] ? ptr_to_hashval+0x60/0x60 [ 426.654465][ T2683] ? arch_stack_walk+0xf8/0x140 [ 426.659296][ T2683] ? snprintf+0xd6/0x120 [ 426.663537][ T2683] kernfs_new_node+0x97/0x170 [ 426.668261][ T2683] __kernfs_create_file+0x4a/0x270 [ 426.673566][ T2683] cgroup_addrm_files+0xab8/0xfe0 [ 426.678586][ T2683] ? ____kasan_kmalloc+0xdc/0x110 [ 426.683712][ T2683] ? __kasan_kmalloc+0x9/0x10 [ 426.688400][ T2683] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 426.694080][ T2683] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 426.700410][ T2683] ? delete_node+0x759/0x7b0 [ 426.705004][ T2683] ? __kasan_check_read+0x11/0x20 [ 426.710037][ T2683] ? delete_node+0x759/0x7b0 [ 426.714606][ T2683] ? __kasan_check_write+0x14/0x20 [ 426.719815][ T2683] ? idr_replace+0x1c4/0x230 [ 426.724496][ T2683] ? idr_get_next+0x4b0/0x4b0 [ 426.729561][ T2683] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 426.734678][ T2683] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 426.739952][ T2683] css_populate_dir+0x137/0x370 [ 426.744872][ T2683] cgroup_apply_control_enable+0x8b9/0x12f0 [ 426.750747][ T2683] cgroup_apply_control+0x8e/0x7e0 [ 426.756117][ T2683] ? css_next_child+0x160/0x160 [ 426.762169][ T2683] ? stack_trace_save+0x12d/0x1f0 [ 426.767324][ T2683] ? io_schedule+0x120/0x120 [ 426.771982][ T2683] ? kernfs_fop_write_iter+0x15e/0x410 [ 426.777655][ T2683] ? __kasan_check_write+0x14/0x20 [ 426.782769][ T2683] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 426.788036][ T2683] cgroup_subtree_control_write+0xd19/0x1310 [ 426.794000][ T2683] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 426.800136][ T2683] ? __kasan_check_write+0x14/0x20 [ 426.805319][ T2683] ? _copy_from_iter+0x3fb/0xd60 [ 426.810424][ T2683] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 426.816759][ T2683] cgroup_file_write+0x28e/0x590 [ 426.821677][ T2683] ? cgroup_seqfile_stop+0xc0/0xc0 [ 426.826793][ T2683] ? mutex_trylock+0x180/0x180 [ 426.831570][ T2683] ? __kasan_check_write+0x14/0x20 [ 426.836670][ T2683] kernfs_fop_write_iter+0x2d0/0x410 [ 426.842115][ T2683] ? cgroup_seqfile_stop+0xc0/0xc0 [ 426.847209][ T2683] vfs_write+0xc4a/0xf80 [ 426.851432][ T2683] ? slab_free_freelist_hook+0xcc/0x1a0 [ 426.857056][ T2683] ? kernel_write+0x420/0x420 [ 426.861741][ T2683] ? do_sys_openat2+0x397/0x470 [ 426.866745][ T2683] ? __kasan_check_read+0x11/0x20 [ 426.872009][ T2683] ? __fdget_pos+0x27e/0x310 [ 426.876616][ T2683] ksys_write+0x198/0x2c0 [ 426.880925][ T2683] ? __ia32_sys_read+0x90/0x90 [ 426.885669][ T2683] ? debug_smp_processor_id+0x17/0x20 [ 426.891024][ T2683] __x64_sys_write+0x7b/0x90 [ 426.895703][ T2683] do_syscall_64+0x34/0x70 [ 426.900107][ T2683] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 426.906327][ T2683] RIP: 0033:0x7f48883727a9 [ 426.910756][ T2683] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 426.930437][ T2683] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 426.939210][ T2683] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 426.947627][ T2683] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 426.955807][ T2683] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 426.963995][ T2683] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 426.972271][ T2683] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000007 [ 426.980576][ T2683] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 427.027176][ T2681] FAULT_INJECTION: forcing a failure. [ 427.027176][ T2681] name failslab, interval 1, probability 0, space 0, times 0 [ 427.039935][ T2681] CPU: 1 PID: 2681 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 427.050646][ T2681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 427.060892][ T2681] Call Trace: [ 427.064336][ T2681] dump_stack_lvl+0x1e2/0x24b [ 427.069003][ T2681] ? bfq_pos_tree_add_move+0x43e/0x43e [ 427.074455][ T2681] ? selinux_kernfs_init_security+0x1a8/0x760 [ 427.080528][ T2681] dump_stack+0x15/0x17 [ 427.084674][ T2681] should_fail+0x3c0/0x510 [ 427.089115][ T2681] ? __kernfs_new_node+0x99/0x6e0 [ 427.094332][ T2681] __should_failslab+0x9f/0xe0 [ 427.099329][ T2681] should_failslab+0x9/0x20 [ 427.103969][ T2681] __kmalloc_track_caller+0x5f/0x350 [ 427.109339][ T2681] kstrdup_const+0x55/0x90 [ 427.114243][ T2681] __kernfs_new_node+0x99/0x6e0 [ 427.119270][ T2681] ? is_module_text_address+0xe1/0x140 [ 427.124988][ T2681] ? kernfs_new_node+0x170/0x170 [ 427.130254][ T2681] ? ptr_to_hashval+0x60/0x60 [ 427.134955][ T2681] ? mutex_lock+0xb2/0x1e0 [ 427.139621][ T2681] ? snprintf+0xd6/0x120 [ 427.143880][ T2681] ? mutex_unlock+0x29/0xf0 [ 427.148659][ T2681] kernfs_new_node+0x97/0x170 [ 427.153689][ T2681] __kernfs_create_file+0x4a/0x270 [ 427.159125][ T2681] cgroup_addrm_files+0xab8/0xfe0 [ 427.164282][ T2681] ? ____kasan_kmalloc+0xdc/0x110 [ 427.169525][ T2681] ? __kasan_kmalloc+0x9/0x10 [ 427.174248][ T2681] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 427.179905][ T2681] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 427.186204][ T2681] ? delete_node+0x759/0x7b0 [ 427.190838][ T2681] ? __kasan_check_read+0x11/0x20 [ 427.195859][ T2681] ? idr_replace+0x1c4/0x230 [ 427.200459][ T2681] ? idr_get_next+0x4b0/0x4b0 [ 427.205166][ T2681] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 427.210187][ T2681] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 427.215593][ T2681] css_populate_dir+0x137/0x370 [ 427.220793][ T2681] cgroup_apply_control_enable+0x8b9/0x12f0 [ 427.226836][ T2681] cgroup_apply_control+0x8e/0x7e0 [ 427.232123][ T2681] ? css_next_child+0x160/0x160 [ 427.237400][ T2681] ? stack_trace_save+0x12d/0x1f0 [ 427.242624][ T2681] ? io_schedule+0x120/0x120 [ 427.247398][ T2681] ? kernfs_fop_write_iter+0x15e/0x410 [ 427.253077][ T2681] ? __kasan_check_write+0x14/0x20 [ 427.258192][ T2681] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 427.263583][ T2681] cgroup_subtree_control_write+0xd19/0x1310 [ 427.269819][ T2681] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 427.275899][ T2681] ? __kasan_check_write+0x14/0x20 [ 427.281181][ T2681] ? _copy_from_iter+0x3fb/0xd60 [ 427.286573][ T2681] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 427.292702][ T2681] cgroup_file_write+0x28e/0x590 [ 427.297656][ T2681] ? cgroup_seqfile_stop+0xc0/0xc0 [ 427.303119][ T2681] ? mutex_trylock+0x180/0x180 [ 427.307877][ T2681] ? __kasan_check_write+0x14/0x20 [ 427.313202][ T2681] kernfs_fop_write_iter+0x2d0/0x410 [ 427.318739][ T2681] ? cgroup_seqfile_stop+0xc0/0xc0 [ 427.323965][ T2681] vfs_write+0xc4a/0xf80 [ 427.328231][ T2681] ? slab_free_freelist_hook+0xcc/0x1a0 [ 427.333937][ T2681] ? kernel_write+0x420/0x420 [ 427.338712][ T2681] ? do_sys_openat2+0x397/0x470 [ 427.343661][ T2681] ? __kasan_check_read+0x11/0x20 [ 427.348901][ T2681] ? __fdget_pos+0x27e/0x310 [ 427.353668][ T2681] ksys_write+0x198/0x2c0 [ 427.358043][ T2681] ? __ia32_sys_read+0x90/0x90 [ 427.362996][ T2681] ? debug_smp_processor_id+0x17/0x20 [ 427.368390][ T2681] __x64_sys_write+0x7b/0x90 [ 427.372981][ T2681] do_syscall_64+0x34/0x70 [ 427.377575][ T2681] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 427.383995][ T2681] RIP: 0033:0x7f48883727a9 [ 427.388414][ T2681] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 427.408374][ T2681] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 427.417236][ T2681] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 427.425731][ T2681] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 427.433976][ T2681] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 427.441949][ T2681] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 427.449915][ T2681] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000007 [ 427.458041][ T2681] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 427.487128][ T2676] FAULT_INJECTION: forcing a failure. [ 427.487128][ T2676] name failslab, interval 1, probability 0, space 0, times 0 [ 427.500033][ T2676] CPU: 0 PID: 2676 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 427.510524][ T2676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 427.521273][ T2676] Call Trace: [ 427.524584][ T2676] dump_stack_lvl+0x1e2/0x24b [ 427.529293][ T2676] ? bfq_pos_tree_add_move+0x43e/0x43e [ 427.534839][ T2676] ? selinux_kernfs_init_security+0x1a8/0x760 [ 427.541264][ T2676] dump_stack+0x15/0x17 [ 427.545610][ T2676] should_fail+0x3c0/0x510 [ 427.550265][ T2676] ? __kernfs_new_node+0x99/0x6e0 [ 427.555431][ T2676] __should_failslab+0x9f/0xe0 [ 427.560195][ T2676] should_failslab+0x9/0x20 [ 427.564882][ T2676] __kmalloc_track_caller+0x5f/0x350 [ 427.570208][ T2676] kstrdup_const+0x55/0x90 [ 427.574617][ T2676] __kernfs_new_node+0x99/0x6e0 [ 427.579465][ T2676] ? is_module_text_address+0xe1/0x140 [ 427.585365][ T2676] ? kernfs_new_node+0x170/0x170 [ 427.590326][ T2676] ? ptr_to_hashval+0x60/0x60 [ 427.595007][ T2676] ? mutex_lock+0xb2/0x1e0 [ 427.599434][ T2676] ? snprintf+0xd6/0x120 [ 427.603679][ T2676] ? mutex_unlock+0x29/0xf0 [ 427.608213][ T2676] kernfs_new_node+0x97/0x170 [ 427.612887][ T2676] __kernfs_create_file+0x4a/0x270 [ 427.617985][ T2676] cgroup_addrm_files+0xab8/0xfe0 [ 427.623016][ T2676] ? ____kasan_kmalloc+0xdc/0x110 [ 427.628030][ T2676] ? __kasan_kmalloc+0x9/0x10 [ 427.632706][ T2676] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 427.638288][ T2676] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 427.644445][ T2676] ? delete_node+0x759/0x7b0 [ 427.649295][ T2676] ? __kasan_check_read+0x11/0x20 [ 427.654364][ T2676] ? idr_replace+0x1c4/0x230 [ 427.659055][ T2676] ? idr_get_next+0x4b0/0x4b0 [ 427.663748][ T2676] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 427.668770][ T2676] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 427.674400][ T2676] css_populate_dir+0x137/0x370 [ 427.679247][ T2676] cgroup_apply_control_enable+0x8b9/0x12f0 [ 427.685214][ T2676] cgroup_apply_control+0x8e/0x7e0 [ 427.690559][ T2676] ? css_next_child+0x160/0x160 [ 427.695684][ T2676] ? stack_trace_save+0x12d/0x1f0 [ 427.700701][ T2676] ? io_schedule+0x120/0x120 [ 427.705629][ T2676] ? kernfs_fop_write_iter+0x15e/0x410 [ 427.711098][ T2676] ? __kasan_check_write+0x14/0x20 [ 427.716513][ T2676] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 427.721965][ T2676] cgroup_subtree_control_write+0xd19/0x1310 [ 427.728057][ T2676] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 427.734054][ T2676] ? __kasan_check_write+0x14/0x20 [ 427.739174][ T2676] ? _copy_from_iter+0x3fb/0xd60 [ 427.744208][ T2676] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 427.750373][ T2676] cgroup_file_write+0x28e/0x590 [ 427.755290][ T2676] ? cgroup_seqfile_stop+0xc0/0xc0 [ 427.760394][ T2676] ? mutex_trylock+0x180/0x180 [ 427.765162][ T2676] ? __kasan_check_write+0x14/0x20 [ 427.770271][ T2676] kernfs_fop_write_iter+0x2d0/0x410 [ 427.775797][ T2676] ? cgroup_seqfile_stop+0xc0/0xc0 [ 427.781295][ T2676] vfs_write+0xc4a/0xf80 [ 427.785687][ T2676] ? slab_free_freelist_hook+0xcc/0x1a0 [ 427.791691][ T2676] ? kernel_write+0x420/0x420 [ 427.796382][ T2676] ? do_sys_openat2+0x397/0x470 [ 427.801318][ T2676] ? __kasan_check_read+0x11/0x20 [ 427.806619][ T2676] ? __fdget_pos+0x27e/0x310 [ 427.811426][ T2676] ksys_write+0x198/0x2c0 [ 427.815785][ T2676] ? __ia32_sys_read+0x90/0x90 [ 427.820666][ T2676] ? debug_smp_processor_id+0x17/0x20 [ 427.826218][ T2676] __x64_sys_write+0x7b/0x90 [ 427.830858][ T2676] do_syscall_64+0x34/0x70 [ 427.835284][ T2676] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 427.841351][ T2676] RIP: 0033:0x7f48883727a9 [ 427.845789][ T2676] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 427.865476][ T2676] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 427.874004][ T2676] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 427.882059][ T2676] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 427.890117][ T2676] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 427.898080][ T2676] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 427.906141][ T2676] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000008 [ 427.914268][ T2676] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 427.957270][ T2686] FAULT_INJECTION: forcing a failure. [ 427.957270][ T2686] name failslab, interval 1, probability 0, space 0, times 0 [ 427.970250][ T2686] CPU: 0 PID: 2686 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 427.980762][ T2686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 427.990807][ T2686] Call Trace: [ 427.994104][ T2686] dump_stack_lvl+0x1e2/0x24b [ 427.998905][ T2686] ? bfq_pos_tree_add_move+0x43e/0x43e [ 428.004933][ T2686] ? selinux_kernfs_init_security+0x1a8/0x760 [ 428.011140][ T2686] dump_stack+0x15/0x17 [ 428.015286][ T2686] should_fail+0x3c0/0x510 [ 428.019685][ T2686] ? __kernfs_new_node+0x99/0x6e0 [ 428.025050][ T2686] __should_failslab+0x9f/0xe0 [ 428.030076][ T2686] should_failslab+0x9/0x20 [ 428.034567][ T2686] __kmalloc_track_caller+0x5f/0x350 [ 428.040131][ T2686] kstrdup_const+0x55/0x90 [ 428.044530][ T2686] __kernfs_new_node+0x99/0x6e0 [ 428.049449][ T2686] ? is_module_text_address+0xe1/0x140 [ 428.055666][ T2686] ? kernfs_new_node+0x170/0x170 [ 428.060582][ T2686] ? ptr_to_hashval+0x60/0x60 [ 428.065248][ T2686] ? mutex_lock+0xb2/0x1e0 [ 428.069673][ T2686] ? snprintf+0xd6/0x120 [ 428.074040][ T2686] ? mutex_unlock+0x29/0xf0 [ 428.078523][ T2686] kernfs_new_node+0x97/0x170 [ 428.083184][ T2686] __kernfs_create_file+0x4a/0x270 [ 428.088271][ T2686] cgroup_addrm_files+0xab8/0xfe0 [ 428.093277][ T2686] ? ____kasan_kmalloc+0xdc/0x110 [ 428.098278][ T2686] ? __kasan_kmalloc+0x9/0x10 [ 428.102933][ T2686] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 428.108632][ T2686] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 428.114763][ T2686] ? delete_node+0x759/0x7b0 [ 428.119332][ T2686] ? __kasan_check_read+0x11/0x20 [ 428.124428][ T2686] ? idr_replace+0x1c4/0x230 [ 428.129388][ T2686] ? idr_get_next+0x4b0/0x4b0 [ 428.134165][ T2686] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 428.139192][ T2686] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 428.145260][ T2686] css_populate_dir+0x137/0x370 [ 428.150275][ T2686] cgroup_apply_control_enable+0x8b9/0x12f0 [ 428.156153][ T2686] cgroup_apply_control+0x8e/0x7e0 [ 428.161513][ T2686] ? css_next_child+0x160/0x160 [ 428.166452][ T2686] ? stack_trace_save+0x12d/0x1f0 [ 428.171563][ T2686] ? io_schedule+0x120/0x120 [ 428.176137][ T2686] ? kernfs_fop_write_iter+0x15e/0x410 [ 428.181604][ T2686] ? __kasan_check_write+0x14/0x20 [ 428.186868][ T2686] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 428.192688][ T2686] cgroup_subtree_control_write+0xd19/0x1310 [ 428.198831][ T2686] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 428.204801][ T2686] ? __kasan_check_write+0x14/0x20 [ 428.209999][ T2686] ? _copy_from_iter+0x3fb/0xd60 [ 428.214915][ T2686] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 428.221004][ T2686] cgroup_file_write+0x28e/0x590 [ 428.225923][ T2686] ? cgroup_seqfile_stop+0xc0/0xc0 [ 428.231041][ T2686] ? mutex_trylock+0x180/0x180 [ 428.235781][ T2686] ? __kasan_check_write+0x14/0x20 [ 428.240890][ T2686] kernfs_fop_write_iter+0x2d0/0x410 [ 428.246153][ T2686] ? cgroup_seqfile_stop+0xc0/0xc0 [ 428.251330][ T2686] vfs_write+0xc4a/0xf80 [ 428.255552][ T2686] ? slab_free_freelist_hook+0xcc/0x1a0 [ 428.261208][ T2686] ? kernel_write+0x420/0x420 [ 428.265876][ T2686] ? do_sys_openat2+0x397/0x470 [ 428.270801][ T2686] ? __kasan_check_read+0x11/0x20 [ 428.275830][ T2686] ? __fdget_pos+0x27e/0x310 [ 428.280401][ T2686] ksys_write+0x198/0x2c0 [ 428.284721][ T2686] ? __ia32_sys_read+0x90/0x90 [ 428.289593][ T2686] ? debug_smp_processor_id+0x17/0x20 [ 428.295386][ T2686] __x64_sys_write+0x7b/0x90 [ 428.299974][ T2686] do_syscall_64+0x34/0x70 [ 428.304484][ T2686] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 428.310722][ T2686] RIP: 0033:0x7f48883727a9 [ 428.315205][ T2686] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 428.335330][ T2686] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 428.343724][ T2686] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 428.351872][ T2686] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 428.359910][ T2686] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 428.367885][ T2686] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 428.375835][ T2686] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000008 [ 428.384043][ T2686] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 428.427207][ T2679] FAULT_INJECTION: forcing a failure. [ 428.427207][ T2679] name failslab, interval 1, probability 0, space 0, times 0 [ 428.439900][ T2679] CPU: 1 PID: 2679 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 428.450293][ T2679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 428.460565][ T2679] Call Trace: [ 428.464213][ T2679] dump_stack_lvl+0x1e2/0x24b [ 428.468875][ T2679] ? panic+0x7d7/0x7d7 [ 428.473077][ T2679] ? bfq_pos_tree_add_move+0x43e/0x43e [ 428.478557][ T2679] ? selinux_kernfs_init_security+0x1a8/0x760 [ 428.484637][ T2679] ? ___slab_alloc+0xa9/0x2e0 [ 428.489409][ T2679] dump_stack+0x15/0x17 [ 428.493564][ T2679] should_fail+0x3c0/0x510 [ 428.498055][ T2679] __should_failslab+0x9f/0xe0 [ 428.502935][ T2679] should_failslab+0x9/0x20 [ 428.507521][ T2679] kmem_cache_alloc+0x3f/0x300 [ 428.512362][ T2679] ? __kernfs_new_node+0xdb/0x6e0 [ 428.517651][ T2679] __kernfs_new_node+0xdb/0x6e0 [ 428.522914][ T2679] ? is_module_text_address+0xe1/0x140 [ 428.528482][ T2679] ? kernfs_new_node+0x170/0x170 [ 428.533582][ T2679] ? ptr_to_hashval+0x60/0x60 [ 428.538436][ T2679] ? arch_stack_walk+0xf8/0x140 [ 428.543317][ T2679] ? snprintf+0xd6/0x120 [ 428.547557][ T2679] kernfs_new_node+0x97/0x170 [ 428.552231][ T2679] __kernfs_create_file+0x4a/0x270 [ 428.557330][ T2679] cgroup_addrm_files+0xab8/0xfe0 [ 428.562341][ T2679] ? ____kasan_kmalloc+0xdc/0x110 [ 428.567807][ T2679] ? __kasan_kmalloc+0x9/0x10 [ 428.572475][ T2679] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 428.578315][ T2679] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 428.584479][ T2679] ? delete_node+0x759/0x7b0 [ 428.589171][ T2679] ? __kasan_check_read+0x11/0x20 [ 428.594194][ T2679] ? delete_node+0x759/0x7b0 [ 428.598808][ T2679] ? __kasan_check_write+0x14/0x20 [ 428.604135][ T2679] ? idr_replace+0x1c4/0x230 [ 428.608847][ T2679] ? idr_get_next+0x4b0/0x4b0 [ 428.613542][ T2679] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 428.618566][ T2679] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 428.623771][ T2679] css_populate_dir+0x137/0x370 [ 428.628751][ T2679] cgroup_apply_control_enable+0x8b9/0x12f0 [ 428.634992][ T2679] cgroup_apply_control+0x8e/0x7e0 [ 428.640361][ T2679] ? css_next_child+0x160/0x160 [ 428.645209][ T2679] ? stack_trace_save+0x12d/0x1f0 [ 428.650238][ T2679] ? io_schedule+0x120/0x120 [ 428.654915][ T2679] ? kernfs_fop_write_iter+0x15e/0x410 [ 428.660522][ T2679] ? __kasan_check_write+0x14/0x20 [ 428.665619][ T2679] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 428.671946][ T2679] cgroup_subtree_control_write+0xd19/0x1310 [ 428.677929][ T2679] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 428.684157][ T2679] ? __kasan_check_write+0x14/0x20 [ 428.689800][ T2679] ? _copy_from_iter+0x3fb/0xd60 [ 428.694948][ T2679] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 428.700931][ T2679] cgroup_file_write+0x28e/0x590 [ 428.706045][ T2679] ? cgroup_seqfile_stop+0xc0/0xc0 [ 428.711154][ T2679] ? mutex_trylock+0x180/0x180 [ 428.716015][ T2679] ? __kasan_check_write+0x14/0x20 [ 428.721117][ T2679] kernfs_fop_write_iter+0x2d0/0x410 [ 428.726518][ T2679] ? cgroup_seqfile_stop+0xc0/0xc0 [ 428.731818][ T2679] vfs_write+0xc4a/0xf80 [ 428.736234][ T2679] ? slab_free_freelist_hook+0xcc/0x1a0 [ 428.741892][ T2679] ? kernel_write+0x420/0x420 [ 428.746601][ T2679] ? do_sys_openat2+0x397/0x470 [ 428.751546][ T2679] ? __kasan_check_read+0x11/0x20 [ 428.756941][ T2679] ? __fdget_pos+0x27e/0x310 [ 428.761518][ T2679] ksys_write+0x198/0x2c0 [ 428.766011][ T2679] ? __ia32_sys_read+0x90/0x90 [ 428.770873][ T2679] ? debug_smp_processor_id+0x17/0x20 [ 428.776255][ T2679] __x64_sys_write+0x7b/0x90 [ 428.781210][ T2679] do_syscall_64+0x34/0x70 [ 428.785827][ T2679] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 428.791730][ T2679] RIP: 0033:0x7f48883727a9 [ 428.796225][ T2679] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 428.816012][ T2679] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 428.824525][ T2679] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 428.832944][ T2679] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 428.841540][ T2679] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 428.849967][ T2679] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 428.858241][ T2679] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000008 [ 428.866796][ T2679] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 428.897173][ T2685] FAULT_INJECTION: forcing a failure. [ 428.897173][ T2685] name failslab, interval 1, probability 0, space 0, times 0 [ 428.910103][ T2685] CPU: 0 PID: 2685 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 428.920656][ T2685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 428.930700][ T2685] Call Trace: [ 428.934271][ T2685] dump_stack_lvl+0x1e2/0x24b [ 428.939017][ T2685] ? panic+0x7d7/0x7d7 [ 428.943233][ T2685] ? bfq_pos_tree_add_move+0x43e/0x43e [ 428.948673][ T2685] ? selinux_kernfs_init_security+0x1a8/0x760 [ 428.954910][ T2685] dump_stack+0x15/0x17 [ 428.959048][ T2685] should_fail+0x3c0/0x510 [ 428.963638][ T2685] __should_failslab+0x9f/0xe0 [ 428.968385][ T2685] should_failslab+0x9/0x20 [ 428.972981][ T2685] kmem_cache_alloc+0x3f/0x300 [ 428.977743][ T2685] ? __kernfs_new_node+0xdb/0x6e0 [ 428.982836][ T2685] __kernfs_new_node+0xdb/0x6e0 [ 428.987663][ T2685] ? is_module_text_address+0xe1/0x140 [ 428.993191][ T2685] ? kernfs_new_node+0x170/0x170 [ 428.998110][ T2685] ? ptr_to_hashval+0x60/0x60 [ 429.002768][ T2685] ? arch_stack_walk+0xf8/0x140 [ 429.007599][ T2685] ? snprintf+0xd6/0x120 [ 429.011824][ T2685] kernfs_new_node+0x97/0x170 [ 429.016480][ T2685] __kernfs_create_file+0x4a/0x270 [ 429.021572][ T2685] cgroup_addrm_files+0xab8/0xfe0 [ 429.026696][ T2685] ? ____kasan_kmalloc+0xdc/0x110 [ 429.031723][ T2685] ? __kasan_kmalloc+0x9/0x10 [ 429.036390][ T2685] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 429.041983][ T2685] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 429.048272][ T2685] ? delete_node+0x759/0x7b0 [ 429.052973][ T2685] ? __kasan_check_read+0x11/0x20 [ 429.058015][ T2685] ? delete_node+0x759/0x7b0 [ 429.062592][ T2685] ? __kasan_check_write+0x14/0x20 [ 429.067685][ T2685] ? idr_replace+0x1c4/0x230 [ 429.072296][ T2685] ? idr_get_next+0x4b0/0x4b0 [ 429.077299][ T2685] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 429.082398][ T2685] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 429.087605][ T2685] css_populate_dir+0x137/0x370 [ 429.092525][ T2685] cgroup_apply_control_enable+0x8b9/0x12f0 [ 429.098403][ T2685] cgroup_apply_control+0x8e/0x7e0 [ 429.103793][ T2685] ? css_next_child+0x160/0x160 [ 429.108631][ T2685] ? stack_trace_save+0x12d/0x1f0 [ 429.113640][ T2685] ? io_schedule+0x120/0x120 [ 429.118301][ T2685] ? kernfs_fop_write_iter+0x15e/0x410 [ 429.123762][ T2685] ? __kasan_check_write+0x14/0x20 [ 429.129142][ T2685] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 429.134764][ T2685] cgroup_subtree_control_write+0xd19/0x1310 [ 429.140755][ T2685] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 429.147517][ T2685] ? __kasan_check_write+0x14/0x20 [ 429.152846][ T2685] ? _copy_from_iter+0x3fb/0xd60 [ 429.157870][ T2685] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 429.164266][ T2685] cgroup_file_write+0x28e/0x590 [ 429.169187][ T2685] ? cgroup_seqfile_stop+0xc0/0xc0 [ 429.174281][ T2685] ? mutex_trylock+0x180/0x180 [ 429.179037][ T2685] ? __kasan_check_write+0x14/0x20 [ 429.184408][ T2685] kernfs_fop_write_iter+0x2d0/0x410 [ 429.189709][ T2685] ? cgroup_seqfile_stop+0xc0/0xc0 [ 429.194954][ T2685] vfs_write+0xc4a/0xf80 [ 429.199273][ T2685] ? slab_free_freelist_hook+0xcc/0x1a0 [ 429.204976][ T2685] ? kernel_write+0x420/0x420 [ 429.209664][ T2685] ? do_sys_openat2+0x397/0x470 [ 429.214800][ T2685] ? __kasan_check_read+0x11/0x20 [ 429.220157][ T2685] ? __fdget_pos+0x27e/0x310 [ 429.224745][ T2685] ksys_write+0x198/0x2c0 [ 429.229160][ T2685] ? __ia32_sys_read+0x90/0x90 [ 429.234163][ T2685] ? debug_smp_processor_id+0x17/0x20 [ 429.239800][ T2685] __x64_sys_write+0x7b/0x90 [ 429.244379][ T2685] do_syscall_64+0x34/0x70 [ 429.248783][ T2685] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 429.254653][ T2685] RIP: 0033:0x7f48883727a9 [ 429.259053][ T2685] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 429.278988][ T2685] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 429.287405][ T2685] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 429.295564][ T2685] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 429.303545][ T2685] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 429.311516][ T2685] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 429.319699][ T2685] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000007 [ 429.328302][ T2685] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 429.357253][ T2691] FAULT_INJECTION: forcing a failure. [ 429.357253][ T2691] name failslab, interval 1, probability 0, space 0, times 0 [ 429.370202][ T2691] CPU: 1 PID: 2691 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 429.380909][ T2691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 429.391358][ T2691] Call Trace: [ 429.394647][ T2691] dump_stack_lvl+0x1e2/0x24b [ 429.399403][ T2691] ? bfq_pos_tree_add_move+0x43e/0x43e [ 429.404851][ T2691] ? selinux_kernfs_init_security+0x1a8/0x760 [ 429.411029][ T2691] dump_stack+0x15/0x17 [ 429.415278][ T2691] should_fail+0x3c0/0x510 [ 429.419696][ T2691] ? __kernfs_new_node+0x99/0x6e0 [ 429.424726][ T2691] __should_failslab+0x9f/0xe0 [ 429.429567][ T2691] should_failslab+0x9/0x20 [ 429.434098][ T2691] __kmalloc_track_caller+0x5f/0x350 [ 429.439409][ T2691] kstrdup_const+0x55/0x90 [ 429.444084][ T2691] __kernfs_new_node+0x99/0x6e0 [ 429.449026][ T2691] ? is_module_text_address+0xe1/0x140 [ 429.454607][ T2691] ? kernfs_new_node+0x170/0x170 [ 429.459540][ T2691] ? ptr_to_hashval+0x60/0x60 [ 429.464383][ T2691] ? mutex_lock+0xb2/0x1e0 [ 429.468885][ T2691] ? snprintf+0xd6/0x120 [ 429.473119][ T2691] ? mutex_unlock+0x29/0xf0 [ 429.477618][ T2691] kernfs_new_node+0x97/0x170 [ 429.482466][ T2691] __kernfs_create_file+0x4a/0x270 [ 429.487592][ T2691] cgroup_addrm_files+0xab8/0xfe0 [ 429.492623][ T2691] ? ____kasan_kmalloc+0xdc/0x110 [ 429.497667][ T2691] ? __kasan_kmalloc+0x9/0x10 [ 429.502331][ T2691] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 429.507868][ T2691] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 429.514100][ T2691] ? delete_node+0x759/0x7b0 [ 429.518907][ T2691] ? __kasan_check_read+0x11/0x20 [ 429.523925][ T2691] ? idr_replace+0x1c4/0x230 [ 429.528620][ T2691] ? idr_get_next+0x4b0/0x4b0 [ 429.533430][ T2691] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 429.539028][ T2691] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 429.544262][ T2691] css_populate_dir+0x137/0x370 [ 429.549312][ T2691] cgroup_apply_control_enable+0x8b9/0x12f0 [ 429.555370][ T2691] cgroup_apply_control+0x8e/0x7e0 [ 429.560495][ T2691] ? css_next_child+0x160/0x160 [ 429.565549][ T2691] ? stack_trace_save+0x12d/0x1f0 [ 429.570570][ T2691] ? io_schedule+0x120/0x120 [ 429.575150][ T2691] ? kernfs_fop_write_iter+0x15e/0x410 [ 429.580599][ T2691] ? __kasan_check_write+0x14/0x20 [ 429.585785][ T2691] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 429.591218][ T2691] cgroup_subtree_control_write+0xd19/0x1310 [ 429.597323][ T2691] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 429.603614][ T2691] ? __kasan_check_write+0x14/0x20 [ 429.608929][ T2691] ? _copy_from_iter+0x3fb/0xd60 [ 429.613986][ T2691] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 429.620138][ T2691] cgroup_file_write+0x28e/0x590 [ 429.625994][ T2691] ? cgroup_seqfile_stop+0xc0/0xc0 [ 429.631107][ T2691] ? mutex_trylock+0x180/0x180 [ 429.636126][ T2691] ? __kasan_check_write+0x14/0x20 [ 429.641491][ T2691] kernfs_fop_write_iter+0x2d0/0x410 [ 429.646863][ T2691] ? cgroup_seqfile_stop+0xc0/0xc0 [ 429.651999][ T2691] vfs_write+0xc4a/0xf80 [ 429.656510][ T2691] ? slab_free_freelist_hook+0xcc/0x1a0 [ 429.662363][ T2691] ? kernel_write+0x420/0x420 [ 429.667184][ T2691] ? do_sys_openat2+0x397/0x470 [ 429.672102][ T2691] ? __kasan_check_read+0x11/0x20 [ 429.677376][ T2691] ? __fdget_pos+0x27e/0x310 [ 429.682036][ T2691] ksys_write+0x198/0x2c0 [ 429.686392][ T2691] ? __ia32_sys_read+0x90/0x90 [ 429.691271][ T2691] ? debug_smp_processor_id+0x17/0x20 [ 429.696642][ T2691] __x64_sys_write+0x7b/0x90 [ 429.701341][ T2691] do_syscall_64+0x34/0x70 [ 429.706573][ T2691] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 429.713170][ T2691] RIP: 0033:0x7f48883727a9 [ 429.717585][ T2691] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 429.738194][ T2691] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 429.746713][ T2691] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 429.754857][ T2691] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 429.762822][ T2691] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 429.771063][ T2691] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 429.779209][ T2691] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000008 [ 429.787728][ T2691] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 429.817306][ T2690] FAULT_INJECTION: forcing a failure. [ 429.817306][ T2690] name failslab, interval 1, probability 0, space 0, times 0 [ 429.830433][ T2690] CPU: 1 PID: 2690 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 429.841098][ T2690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 429.851231][ T2690] Call Trace: [ 429.854594][ T2690] dump_stack_lvl+0x1e2/0x24b [ 429.859258][ T2690] ? bfq_pos_tree_add_move+0x43e/0x43e [ 429.864705][ T2690] ? selinux_kernfs_init_security+0x1a8/0x760 [ 429.871129][ T2690] dump_stack+0x15/0x17 [ 429.875389][ T2690] should_fail+0x3c0/0x510 [ 429.879981][ T2690] ? __kernfs_new_node+0x99/0x6e0 [ 429.885083][ T2690] __should_failslab+0x9f/0xe0 [ 429.889848][ T2690] should_failslab+0x9/0x20 [ 429.894356][ T2690] __kmalloc_track_caller+0x5f/0x350 [ 429.899636][ T2690] kstrdup_const+0x55/0x90 [ 429.904440][ T2690] __kernfs_new_node+0x99/0x6e0 [ 429.909317][ T2690] ? is_module_text_address+0xe1/0x140 [ 429.914771][ T2690] ? kernfs_new_node+0x170/0x170 [ 429.919698][ T2690] ? ptr_to_hashval+0x60/0x60 [ 429.924354][ T2690] ? mutex_lock+0xb2/0x1e0 [ 429.928753][ T2690] ? snprintf+0xd6/0x120 [ 429.933047][ T2690] ? mutex_unlock+0x29/0xf0 [ 429.937642][ T2690] kernfs_new_node+0x97/0x170 [ 429.942489][ T2690] __kernfs_create_file+0x4a/0x270 [ 429.947688][ T2690] cgroup_addrm_files+0xab8/0xfe0 [ 429.952967][ T2690] ? ____kasan_kmalloc+0xdc/0x110 [ 429.958027][ T2690] ? __kasan_kmalloc+0x9/0x10 [ 429.962705][ T2690] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 429.968281][ T2690] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 429.974518][ T2690] ? delete_node+0x759/0x7b0 [ 429.979193][ T2690] ? __kasan_check_read+0x11/0x20 [ 429.984319][ T2690] ? idr_replace+0x1c4/0x230 [ 429.988902][ T2690] ? idr_get_next+0x4b0/0x4b0 [ 429.993585][ T2690] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 429.998702][ T2690] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 430.003994][ T2690] css_populate_dir+0x137/0x370 [ 430.008838][ T2690] cgroup_apply_control_enable+0x8b9/0x12f0 [ 430.014720][ T2690] cgroup_apply_control+0x8e/0x7e0 [ 430.019819][ T2690] ? css_next_child+0x160/0x160 [ 430.024679][ T2690] ? stack_trace_save+0x12d/0x1f0 [ 430.029720][ T2690] ? io_schedule+0x120/0x120 [ 430.034303][ T2690] ? kernfs_fop_write_iter+0x15e/0x410 [ 430.039758][ T2690] ? __kasan_check_write+0x14/0x20 [ 430.044852][ T2690] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 430.050141][ T2690] cgroup_subtree_control_write+0xd19/0x1310 [ 430.056144][ T2690] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 430.062234][ T2690] ? __kasan_check_write+0x14/0x20 [ 430.067428][ T2690] ? _copy_from_iter+0x3fb/0xd60 [ 430.072465][ T2690] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 430.078438][ T2690] cgroup_file_write+0x28e/0x590 [ 430.083509][ T2690] ? cgroup_seqfile_stop+0xc0/0xc0 [ 430.088621][ T2690] ? mutex_trylock+0x180/0x180 [ 430.093378][ T2690] ? __kasan_check_write+0x14/0x20 [ 430.098570][ T2690] kernfs_fop_write_iter+0x2d0/0x410 [ 430.103859][ T2690] ? cgroup_seqfile_stop+0xc0/0xc0 [ 430.109318][ T2690] vfs_write+0xc4a/0xf80 [ 430.113950][ T2690] ? slab_free_freelist_hook+0xcc/0x1a0 [ 430.119575][ T2690] ? kernel_write+0x420/0x420 [ 430.124786][ T2690] ? do_sys_openat2+0x397/0x470 [ 430.129917][ T2690] ? __kasan_check_read+0x11/0x20 [ 430.135153][ T2690] ? __fdget_pos+0x27e/0x310 [ 430.139950][ T2690] ksys_write+0x198/0x2c0 [ 430.144497][ T2690] ? __ia32_sys_read+0x90/0x90 [ 430.149523][ T2690] ? debug_smp_processor_id+0x17/0x20 [ 430.154984][ T2690] __x64_sys_write+0x7b/0x90 [ 430.159630][ T2690] do_syscall_64+0x34/0x70 [ 430.164074][ T2690] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 430.170058][ T2690] RIP: 0033:0x7f48883727a9 [ 430.174841][ T2690] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 430.195611][ T2690] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 430.204235][ T2690] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 430.212547][ T2690] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 430.221059][ T2690] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 430.229695][ T2690] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 430.237847][ T2690] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000009 [ 430.246287][ T2690] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 430.277001][ T2688] FAULT_INJECTION: forcing a failure. [ 430.277001][ T2688] name failslab, interval 1, probability 0, space 0, times 0 [ 430.289949][ T2688] CPU: 0 PID: 2688 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 430.300493][ T2688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 430.310965][ T2688] Call Trace: [ 430.314288][ T2688] dump_stack_lvl+0x1e2/0x24b [ 430.319162][ T2688] ? bfq_pos_tree_add_move+0x43e/0x43e [ 430.324795][ T2688] ? selinux_kernfs_init_security+0x1a8/0x760 [ 430.331228][ T2688] dump_stack+0x15/0x17 [ 430.335656][ T2688] should_fail+0x3c0/0x510 [ 430.340388][ T2688] ? __kernfs_new_node+0x99/0x6e0 [ 430.345750][ T2688] __should_failslab+0x9f/0xe0 [ 430.350610][ T2688] should_failslab+0x9/0x20 [ 430.355229][ T2688] __kmalloc_track_caller+0x5f/0x350 [ 430.360814][ T2688] kstrdup_const+0x55/0x90 [ 430.365433][ T2688] __kernfs_new_node+0x99/0x6e0 [ 430.371022][ T2688] ? is_module_text_address+0xe1/0x140 [ 430.376762][ T2688] ? kernfs_new_node+0x170/0x170 [ 430.381702][ T2688] ? ptr_to_hashval+0x60/0x60 [ 430.386388][ T2688] ? mutex_lock+0xb2/0x1e0 [ 430.391005][ T2688] ? snprintf+0xd6/0x120 [ 430.395275][ T2688] ? mutex_unlock+0x29/0xf0 [ 430.399788][ T2688] kernfs_new_node+0x97/0x170 [ 430.404548][ T2688] __kernfs_create_file+0x4a/0x270 [ 430.409765][ T2688] cgroup_addrm_files+0xab8/0xfe0 [ 430.414822][ T2688] ? ____kasan_kmalloc+0xdc/0x110 [ 430.420083][ T2688] ? __kasan_kmalloc+0x9/0x10 [ 430.424768][ T2688] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 430.430621][ T2688] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 430.436787][ T2688] ? delete_node+0x759/0x7b0 [ 430.441402][ T2688] ? __kasan_check_read+0x11/0x20 [ 430.446715][ T2688] ? idr_replace+0x1c4/0x230 [ 430.451304][ T2688] ? idr_get_next+0x4b0/0x4b0 [ 430.456072][ T2688] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 430.461269][ T2688] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 430.466864][ T2688] css_populate_dir+0x137/0x370 [ 430.471737][ T2688] cgroup_apply_control_enable+0x8b9/0x12f0 [ 430.477719][ T2688] cgroup_apply_control+0x8e/0x7e0 [ 430.483154][ T2688] ? css_next_child+0x160/0x160 [ 430.488130][ T2688] ? stack_trace_save+0x12d/0x1f0 [ 430.493408][ T2688] ? io_schedule+0x120/0x120 [ 430.498271][ T2688] ? kernfs_fop_write_iter+0x15e/0x410 [ 430.503778][ T2688] ? __kasan_check_write+0x14/0x20 [ 430.509208][ T2688] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 430.514514][ T2688] cgroup_subtree_control_write+0xd19/0x1310 [ 430.520874][ T2688] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 430.527376][ T2688] ? __kasan_check_write+0x14/0x20 [ 430.532576][ T2688] ? _copy_from_iter+0x3fb/0xd60 [ 430.537613][ T2688] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 430.543595][ T2688] cgroup_file_write+0x28e/0x590 [ 430.548638][ T2688] ? cgroup_seqfile_stop+0xc0/0xc0 [ 430.553760][ T2688] ? mutex_trylock+0x180/0x180 [ 430.559059][ T2688] ? __kasan_check_write+0x14/0x20 [ 430.564374][ T2688] kernfs_fop_write_iter+0x2d0/0x410 [ 430.570217][ T2688] ? cgroup_seqfile_stop+0xc0/0xc0 [ 430.575550][ T2688] vfs_write+0xc4a/0xf80 [ 430.579909][ T2688] ? slab_free_freelist_hook+0xcc/0x1a0 [ 430.585646][ T2688] ? kernel_write+0x420/0x420 [ 430.590346][ T2688] ? do_sys_openat2+0x397/0x470 [ 430.595194][ T2688] ? __kasan_check_read+0x11/0x20 [ 430.600387][ T2688] ? __fdget_pos+0x27e/0x310 [ 430.605072][ T2688] ksys_write+0x198/0x2c0 [ 430.609578][ T2688] ? __ia32_sys_read+0x90/0x90 [ 430.614510][ T2688] ? debug_smp_processor_id+0x17/0x20 [ 430.620242][ T2688] __x64_sys_write+0x7b/0x90 [ 430.624988][ T2688] do_syscall_64+0x34/0x70 [ 430.629496][ T2688] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 430.635749][ T2688] RIP: 0033:0x7f48883727a9 [ 430.640617][ T2688] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 430.661103][ T2688] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 430.669636][ T2688] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 430.677608][ T2688] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 430.685963][ T2688] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 430.693960][ T2688] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 430.702121][ T2688] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000009 [ 430.710751][ T2688] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 430.737323][ T2694] FAULT_INJECTION: forcing a failure. [ 430.737323][ T2694] name failslab, interval 1, probability 0, space 0, times 0 [ 430.750526][ T2694] CPU: 0 PID: 2694 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 430.761903][ T2694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 430.772208][ T2694] Call Trace: [ 430.775903][ T2694] dump_stack_lvl+0x1e2/0x24b [ 430.781130][ T2694] ? bfq_pos_tree_add_move+0x43e/0x43e [ 430.787206][ T2694] ? selinux_kernfs_init_security+0x1a8/0x760 [ 430.793532][ T2694] dump_stack+0x15/0x17 [ 430.797798][ T2694] should_fail+0x3c0/0x510 [ 430.802202][ T2694] ? __kernfs_new_node+0x99/0x6e0 [ 430.807341][ T2694] __should_failslab+0x9f/0xe0 [ 430.812279][ T2694] should_failslab+0x9/0x20 [ 430.816862][ T2694] __kmalloc_track_caller+0x5f/0x350 [ 430.822231][ T2694] kstrdup_const+0x55/0x90 [ 430.826660][ T2694] __kernfs_new_node+0x99/0x6e0 [ 430.831610][ T2694] ? is_module_text_address+0xe1/0x140 [ 430.837277][ T2694] ? kernfs_new_node+0x170/0x170 [ 430.842312][ T2694] ? ptr_to_hashval+0x60/0x60 [ 430.846992][ T2694] ? mutex_lock+0xb2/0x1e0 [ 430.851411][ T2694] ? snprintf+0xd6/0x120 [ 430.855836][ T2694] ? mutex_unlock+0x29/0xf0 [ 430.860505][ T2694] kernfs_new_node+0x97/0x170 [ 430.865292][ T2694] __kernfs_create_file+0x4a/0x270 [ 430.870540][ T2694] cgroup_addrm_files+0xab8/0xfe0 [ 430.875576][ T2694] ? ____kasan_kmalloc+0xdc/0x110 [ 430.880610][ T2694] ? __kasan_kmalloc+0x9/0x10 [ 430.885453][ T2694] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 430.891272][ T2694] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 430.897426][ T2694] ? delete_node+0x759/0x7b0 [ 430.902005][ T2694] ? __kasan_check_read+0x11/0x20 [ 430.907131][ T2694] ? idr_replace+0x1c4/0x230 [ 430.911881][ T2694] ? idr_get_next+0x4b0/0x4b0 [ 430.916619][ T2694] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 430.921660][ T2694] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 430.927066][ T2694] css_populate_dir+0x137/0x370 [ 430.932046][ T2694] cgroup_apply_control_enable+0x8b9/0x12f0 [ 430.937939][ T2694] cgroup_apply_control+0x8e/0x7e0 [ 430.943472][ T2694] ? css_next_child+0x160/0x160 [ 430.948565][ T2694] ? stack_trace_save+0x12d/0x1f0 [ 430.953743][ T2694] ? io_schedule+0x120/0x120 [ 430.958339][ T2694] ? kernfs_fop_write_iter+0x15e/0x410 [ 430.964088][ T2694] ? __kasan_check_write+0x14/0x20 [ 430.969594][ T2694] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 430.975010][ T2694] cgroup_subtree_control_write+0xd19/0x1310 [ 430.981196][ T2694] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 430.987168][ T2694] ? __kasan_check_write+0x14/0x20 [ 430.992268][ T2694] ? _copy_from_iter+0x3fb/0xd60 [ 430.997192][ T2694] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 431.003152][ T2694] cgroup_file_write+0x28e/0x590 [ 431.008074][ T2694] ? cgroup_seqfile_stop+0xc0/0xc0 [ 431.013170][ T2694] ? mutex_trylock+0x180/0x180 [ 431.018007][ T2694] ? __kasan_check_write+0x14/0x20 [ 431.023338][ T2694] kernfs_fop_write_iter+0x2d0/0x410 [ 431.028735][ T2694] ? cgroup_seqfile_stop+0xc0/0xc0 [ 431.033847][ T2694] vfs_write+0xc4a/0xf80 [ 431.038445][ T2694] ? slab_free_freelist_hook+0xcc/0x1a0 [ 431.044402][ T2694] ? kernel_write+0x420/0x420 [ 431.049284][ T2694] ? do_sys_openat2+0x397/0x470 [ 431.054187][ T2694] ? __kasan_check_read+0x11/0x20 [ 431.059878][ T2694] ? __fdget_pos+0x27e/0x310 [ 431.064576][ T2694] ksys_write+0x198/0x2c0 [ 431.069112][ T2694] ? __ia32_sys_read+0x90/0x90 [ 431.074000][ T2694] ? debug_smp_processor_id+0x17/0x20 [ 431.079372][ T2694] __x64_sys_write+0x7b/0x90 [ 431.084060][ T2694] do_syscall_64+0x34/0x70 [ 431.088486][ T2694] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 431.094513][ T2694] RIP: 0033:0x7f48883727a9 [ 431.099188][ T2694] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 431.119230][ T2694] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 431.127632][ T2694] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 431.136075][ T2694] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 431.144827][ T2694] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 431.153016][ T2694] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 431.161512][ T2694] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000a [ 431.170098][ T2694] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 431.217436][ T2695] FAULT_INJECTION: forcing a failure. [ 431.217436][ T2695] name failslab, interval 1, probability 0, space 0, times 0 [ 431.230659][ T2695] CPU: 0 PID: 2695 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 431.241146][ T2695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 431.251327][ T2695] Call Trace: [ 431.254620][ T2695] dump_stack_lvl+0x1e2/0x24b [ 431.259379][ T2695] ? panic+0x7d7/0x7d7 [ 431.263665][ T2695] ? bfq_pos_tree_add_move+0x43e/0x43e [ 431.269125][ T2695] ? selinux_kernfs_init_security+0x1a8/0x760 [ 431.275199][ T2695] dump_stack+0x15/0x17 [ 431.279470][ T2695] should_fail+0x3c0/0x510 [ 431.284011][ T2695] __should_failslab+0x9f/0xe0 [ 431.288783][ T2695] should_failslab+0x9/0x20 [ 431.294054][ T2695] kmem_cache_alloc+0x3f/0x300 [ 431.298916][ T2695] ? __kernfs_new_node+0xdb/0x6e0 [ 431.304057][ T2695] __kernfs_new_node+0xdb/0x6e0 [ 431.309024][ T2695] ? is_module_text_address+0xe1/0x140 [ 431.314483][ T2695] ? kernfs_new_node+0x170/0x170 [ 431.319438][ T2695] ? ptr_to_hashval+0x60/0x60 [ 431.324201][ T2695] ? arch_stack_walk+0xf8/0x140 [ 431.329111][ T2695] ? snprintf+0xd6/0x120 [ 431.333357][ T2695] kernfs_new_node+0x97/0x170 [ 431.338615][ T2695] __kernfs_create_file+0x4a/0x270 [ 431.343948][ T2695] cgroup_addrm_files+0xab8/0xfe0 [ 431.349476][ T2695] ? ____kasan_kmalloc+0xdc/0x110 [ 431.354536][ T2695] ? __kasan_kmalloc+0x9/0x10 [ 431.359369][ T2695] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 431.365431][ T2695] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 431.372259][ T2695] ? delete_node+0x759/0x7b0 [ 431.377174][ T2695] ? __kasan_check_read+0x11/0x20 [ 431.382513][ T2695] ? delete_node+0x759/0x7b0 [ 431.387116][ T2695] ? __kasan_check_write+0x14/0x20 [ 431.392329][ T2695] ? idr_replace+0x1c4/0x230 [ 431.397143][ T2695] ? idr_get_next+0x4b0/0x4b0 [ 431.402044][ T2695] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 431.407092][ T2695] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 431.412287][ T2695] css_populate_dir+0x137/0x370 [ 431.417228][ T2695] cgroup_apply_control_enable+0x8b9/0x12f0 [ 431.423295][ T2695] cgroup_apply_control+0x8e/0x7e0 [ 431.428640][ T2695] ? css_next_child+0x160/0x160 [ 431.433571][ T2695] ? stack_trace_save+0x12d/0x1f0 [ 431.439416][ T2695] ? io_schedule+0x120/0x120 [ 431.444017][ T2695] ? kernfs_fop_write_iter+0x15e/0x410 [ 431.449479][ T2695] ? __kasan_check_write+0x14/0x20 [ 431.454913][ T2695] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 431.460398][ T2695] cgroup_subtree_control_write+0xd19/0x1310 [ 431.466566][ T2695] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 431.472632][ T2695] ? __kasan_check_write+0x14/0x20 [ 431.477744][ T2695] ? _copy_from_iter+0x3fb/0xd60 [ 431.482716][ T2695] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 431.488684][ T2695] cgroup_file_write+0x28e/0x590 [ 431.493635][ T2695] ? cgroup_seqfile_stop+0xc0/0xc0 [ 431.498863][ T2695] ? mutex_trylock+0x180/0x180 [ 431.503709][ T2695] ? __kasan_check_write+0x14/0x20 [ 431.508863][ T2695] kernfs_fop_write_iter+0x2d0/0x410 [ 431.514315][ T2695] ? cgroup_seqfile_stop+0xc0/0xc0 [ 431.519741][ T2695] vfs_write+0xc4a/0xf80 [ 431.524448][ T2695] ? slab_free_freelist_hook+0xcc/0x1a0 [ 431.530194][ T2695] ? kernel_write+0x420/0x420 [ 431.534957][ T2695] ? do_sys_openat2+0x397/0x470 [ 431.539805][ T2695] ? __kasan_check_read+0x11/0x20 [ 431.544834][ T2695] ? __fdget_pos+0x27e/0x310 [ 431.549487][ T2695] ksys_write+0x198/0x2c0 [ 431.553901][ T2695] ? __kasan_check_write+0x14/0x20 [ 431.559080][ T2695] ? __ia32_sys_read+0x90/0x90 [ 431.564273][ T2695] ? debug_smp_processor_id+0x17/0x20 [ 431.570228][ T2695] __x64_sys_write+0x7b/0x90 [ 431.575169][ T2695] do_syscall_64+0x34/0x70 [ 431.579586][ T2695] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 431.585591][ T2695] RIP: 0033:0x7f48883727a9 [ 431.590364][ T2695] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 431.610638][ T2695] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 431.620025][ T2695] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 431.629337][ T2695] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 431.637832][ T2695] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 431.646107][ T2695] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 431.654293][ T2695] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000b [ 431.662430][ T2695] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 431.707723][ T2696] FAULT_INJECTION: forcing a failure. [ 431.707723][ T2696] name failslab, interval 1, probability 0, space 0, times 0 [ 431.720678][ T2696] CPU: 0 PID: 2696 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 431.731265][ T2696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 431.741711][ T2696] Call Trace: [ 431.745009][ T2696] dump_stack_lvl+0x1e2/0x24b [ 431.749690][ T2696] ? bfq_pos_tree_add_move+0x43e/0x43e [ 431.755298][ T2696] ? selinux_kernfs_init_security+0x1a8/0x760 [ 431.761370][ T2696] dump_stack+0x15/0x17 [ 431.765539][ T2696] should_fail+0x3c0/0x510 [ 431.770229][ T2696] ? __kernfs_new_node+0x99/0x6e0 [ 431.775268][ T2696] __should_failslab+0x9f/0xe0 [ 431.780120][ T2696] should_failslab+0x9/0x20 [ 431.784606][ T2696] __kmalloc_track_caller+0x5f/0x350 [ 431.789976][ T2696] kstrdup_const+0x55/0x90 [ 431.794382][ T2696] __kernfs_new_node+0x99/0x6e0 [ 431.799217][ T2696] ? is_module_text_address+0xe1/0x140 [ 431.805360][ T2696] ? kernfs_new_node+0x170/0x170 [ 431.810282][ T2696] ? ptr_to_hashval+0x60/0x60 [ 431.814958][ T2696] ? mutex_lock+0xb2/0x1e0 [ 431.819356][ T2696] ? snprintf+0xd6/0x120 [ 431.823771][ T2696] ? mutex_unlock+0x29/0xf0 [ 431.828281][ T2696] kernfs_new_node+0x97/0x170 [ 431.833828][ T2696] __kernfs_create_file+0x4a/0x270 [ 431.838920][ T2696] cgroup_addrm_files+0xab8/0xfe0 [ 431.843949][ T2696] ? ____kasan_kmalloc+0xdc/0x110 [ 431.848997][ T2696] ? __kasan_kmalloc+0x9/0x10 [ 431.854126][ T2696] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 431.860130][ T2696] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 431.867487][ T2696] ? delete_node+0x759/0x7b0 [ 431.872454][ T2696] ? __kasan_check_read+0x11/0x20 [ 431.877803][ T2696] ? idr_replace+0x1c4/0x230 [ 431.882866][ T2696] ? idr_get_next+0x4b0/0x4b0 [ 431.887810][ T2696] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 431.893198][ T2696] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 431.898655][ T2696] css_populate_dir+0x137/0x370 [ 431.904072][ T2696] cgroup_apply_control_enable+0x8b9/0x12f0 [ 431.910481][ T2696] cgroup_apply_control+0x8e/0x7e0 [ 431.915904][ T2696] ? css_next_child+0x160/0x160 [ 431.920863][ T2696] ? io_schedule+0x120/0x120 [ 431.925561][ T2696] ? kernfs_fop_write_iter+0x15e/0x410 [ 431.931016][ T2696] ? __kasan_check_write+0x14/0x20 [ 431.936120][ T2696] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 431.941743][ T2696] cgroup_subtree_control_write+0xd19/0x1310 [ 431.947810][ T2696] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 431.953902][ T2696] ? __kasan_check_write+0x14/0x20 [ 431.959278][ T2696] ? _copy_from_iter+0x3fb/0xd60 [ 431.964346][ T2696] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 431.970691][ T2696] cgroup_file_write+0x28e/0x590 [ 431.975847][ T2696] ? cgroup_seqfile_stop+0xc0/0xc0 [ 431.981033][ T2696] ? mutex_trylock+0x180/0x180 [ 431.985958][ T2696] ? __kasan_check_write+0x14/0x20 [ 431.991048][ T2696] kernfs_fop_write_iter+0x2d0/0x410 [ 431.996695][ T2696] ? cgroup_seqfile_stop+0xc0/0xc0 [ 432.001841][ T2696] vfs_write+0xc4a/0xf80 [ 432.006277][ T2696] ? kernel_write+0x420/0x420 [ 432.011055][ T2696] ? do_sys_openat2+0x397/0x470 [ 432.015898][ T2696] ? __kasan_check_read+0x11/0x20 [ 432.020916][ T2696] ? __fdget_pos+0x27e/0x310 [ 432.025584][ T2696] ksys_write+0x198/0x2c0 [ 432.030353][ T2696] ? __ia32_sys_read+0x90/0x90 [ 432.035130][ T2696] ? debug_smp_processor_id+0x17/0x20 [ 432.040520][ T2696] __x64_sys_write+0x7b/0x90 [ 432.045195][ T2696] do_syscall_64+0x34/0x70 [ 432.049714][ T2696] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 432.055705][ T2696] RIP: 0033:0x7f48883727a9 [ 432.060154][ T2696] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 432.080269][ T2696] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 432.088664][ T2696] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 432.096708][ T2696] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 432.105097][ T2696] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 432.113218][ T2696] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 432.121256][ T2696] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000c [ 432.129616][ T2696] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 432.177173][ T2693] FAULT_INJECTION: forcing a failure. [ 432.177173][ T2693] name failslab, interval 1, probability 0, space 0, times 0 [ 432.190315][ T2693] CPU: 1 PID: 2693 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 432.201071][ T2693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 432.211598][ T2693] Call Trace: [ 432.215005][ T2693] dump_stack_lvl+0x1e2/0x24b [ 432.219923][ T2693] ? bfq_pos_tree_add_move+0x43e/0x43e [ 432.226058][ T2693] ? selinux_kernfs_init_security+0x1a8/0x760 [ 432.232130][ T2693] dump_stack+0x15/0x17 [ 432.237029][ T2693] should_fail+0x3c0/0x510 [ 432.241608][ T2693] ? __kernfs_new_node+0x99/0x6e0 [ 432.247245][ T2693] __should_failslab+0x9f/0xe0 [ 432.252575][ T2693] should_failslab+0x9/0x20 [ 432.257578][ T2693] __kmalloc_track_caller+0x5f/0x350 [ 432.263316][ T2693] kstrdup_const+0x55/0x90 [ 432.268312][ T2693] __kernfs_new_node+0x99/0x6e0 [ 432.274220][ T2693] ? is_module_text_address+0xe1/0x140 [ 432.279731][ T2693] ? kernfs_new_node+0x170/0x170 [ 432.284933][ T2693] ? ptr_to_hashval+0x60/0x60 [ 432.289893][ T2693] ? mutex_lock+0xb2/0x1e0 [ 432.294707][ T2693] ? snprintf+0xd6/0x120 [ 432.299241][ T2693] ? mutex_unlock+0x29/0xf0 [ 432.303868][ T2693] kernfs_new_node+0x97/0x170 [ 432.309019][ T2693] __kernfs_create_file+0x4a/0x270 [ 432.314969][ T2693] cgroup_addrm_files+0xab8/0xfe0 [ 432.320095][ T2693] ? ____kasan_kmalloc+0xdc/0x110 [ 432.325231][ T2693] ? __kasan_kmalloc+0x9/0x10 [ 432.330142][ T2693] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 432.335694][ T2693] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 432.342135][ T2693] ? delete_node+0x759/0x7b0 [ 432.346783][ T2693] ? __kasan_check_read+0x11/0x20 [ 432.351926][ T2693] ? idr_replace+0x1c4/0x230 [ 432.356693][ T2693] ? idr_get_next+0x4b0/0x4b0 [ 432.361691][ T2693] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 432.366815][ T2693] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 432.372256][ T2693] css_populate_dir+0x137/0x370 [ 432.377206][ T2693] cgroup_apply_control_enable+0x8b9/0x12f0 [ 432.383224][ T2693] cgroup_apply_control+0x8e/0x7e0 [ 432.388366][ T2693] ? css_next_child+0x160/0x160 [ 432.393236][ T2693] ? stack_trace_save+0x12d/0x1f0 [ 432.398274][ T2693] ? io_schedule+0x120/0x120 [ 432.402853][ T2693] ? kernfs_fop_write_iter+0x15e/0x410 [ 432.408363][ T2693] ? __kasan_check_write+0x14/0x20 [ 432.413483][ T2693] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 432.419118][ T2693] cgroup_subtree_control_write+0xd19/0x1310 [ 432.425189][ T2693] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 432.431251][ T2693] ? __kasan_check_write+0x14/0x20 [ 432.436454][ T2693] ? _copy_from_iter+0x3fb/0xd60 [ 432.441507][ T2693] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 432.447615][ T2693] cgroup_file_write+0x28e/0x590 [ 432.452637][ T2693] ? cgroup_seqfile_stop+0xc0/0xc0 [ 432.457861][ T2693] ? mutex_trylock+0x180/0x180 [ 432.462954][ T2693] ? __kasan_check_write+0x14/0x20 [ 432.468265][ T2693] kernfs_fop_write_iter+0x2d0/0x410 [ 432.473747][ T2693] ? cgroup_seqfile_stop+0xc0/0xc0 [ 432.478943][ T2693] vfs_write+0xc4a/0xf80 [ 432.483430][ T2693] ? slab_free_freelist_hook+0xcc/0x1a0 [ 432.488996][ T2693] ? kernel_write+0x420/0x420 [ 432.493924][ T2693] ? do_sys_openat2+0x397/0x470 [ 432.498863][ T2693] ? __kasan_check_read+0x11/0x20 [ 432.503967][ T2693] ? __fdget_pos+0x27e/0x310 [ 432.508562][ T2693] ksys_write+0x198/0x2c0 [ 432.513596][ T2693] ? __ia32_sys_read+0x90/0x90 [ 432.518480][ T2693] ? debug_smp_processor_id+0x17/0x20 [ 432.524094][ T2693] __x64_sys_write+0x7b/0x90 [ 432.528849][ T2693] do_syscall_64+0x34/0x70 [ 432.533568][ T2693] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 432.539543][ T2693] RIP: 0033:0x7f48883727a9 [ 432.544180][ T2693] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 432.564355][ T2693] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 432.573414][ T2693] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 432.581721][ T2693] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 432.589940][ T2693] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 432.598109][ T2693] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 432.606572][ T2693] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000a [ 432.616459][ T2693] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 432.637084][ T2698] FAULT_INJECTION: forcing a failure. [ 432.637084][ T2698] name failslab, interval 1, probability 0, space 0, times 0 [ 432.650174][ T2698] CPU: 1 PID: 2698 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 432.661101][ T2698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 432.671204][ T2698] Call Trace: [ 432.674491][ T2698] dump_stack_lvl+0x1e2/0x24b [ 432.679150][ T2698] ? bfq_pos_tree_add_move+0x43e/0x43e [ 432.684678][ T2698] ? selinux_kernfs_init_security+0x1a8/0x760 [ 432.690828][ T2698] dump_stack+0x15/0x17 [ 432.694990][ T2698] should_fail+0x3c0/0x510 [ 432.699449][ T2698] ? __kernfs_new_node+0x99/0x6e0 [ 432.704641][ T2698] __should_failslab+0x9f/0xe0 [ 432.709425][ T2698] should_failslab+0x9/0x20 [ 432.713995][ T2698] __kmalloc_track_caller+0x5f/0x350 [ 432.719434][ T2698] kstrdup_const+0x55/0x90 [ 432.723852][ T2698] __kernfs_new_node+0x99/0x6e0 [ 432.728811][ T2698] ? is_module_text_address+0xe1/0x140 [ 432.734277][ T2698] ? kernfs_new_node+0x170/0x170 [ 432.739466][ T2698] ? ptr_to_hashval+0x60/0x60 [ 432.744217][ T2698] ? mutex_lock+0xb2/0x1e0 [ 432.749155][ T2698] ? snprintf+0xd6/0x120 [ 432.753420][ T2698] ? mutex_unlock+0x29/0xf0 [ 432.758271][ T2698] kernfs_new_node+0x97/0x170 [ 432.763023][ T2698] __kernfs_create_file+0x4a/0x270 [ 432.768126][ T2698] cgroup_addrm_files+0xab8/0xfe0 [ 432.773136][ T2698] ? ____kasan_kmalloc+0xdc/0x110 [ 432.778141][ T2698] ? __kasan_kmalloc+0x9/0x10 [ 432.782857][ T2698] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 432.788554][ T2698] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 432.794725][ T2698] ? delete_node+0x759/0x7b0 [ 432.799431][ T2698] ? __kasan_check_read+0x11/0x20 [ 432.804486][ T2698] ? idr_replace+0x1c4/0x230 [ 432.809061][ T2698] ? idr_get_next+0x4b0/0x4b0 [ 432.813734][ T2698] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 432.818768][ T2698] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 432.823981][ T2698] css_populate_dir+0x137/0x370 [ 432.828947][ T2698] cgroup_apply_control_enable+0x8b9/0x12f0 [ 432.834913][ T2698] cgroup_apply_control+0x8e/0x7e0 [ 432.840183][ T2698] ? css_next_child+0x160/0x160 [ 432.845103][ T2698] ? stack_trace_save+0x12d/0x1f0 [ 432.850116][ T2698] ? io_schedule+0x120/0x120 [ 432.854783][ T2698] ? kernfs_fop_write_iter+0x15e/0x410 [ 432.860308][ T2698] ? __kasan_check_write+0x14/0x20 [ 432.865521][ T2698] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 432.870809][ T2698] cgroup_subtree_control_write+0xd19/0x1310 [ 432.877057][ T2698] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 432.883323][ T2698] ? __kasan_check_write+0x14/0x20 [ 432.888597][ T2698] ? _copy_from_iter+0x3fb/0xd60 [ 432.893615][ T2698] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 432.899946][ T2698] cgroup_file_write+0x28e/0x590 [ 432.904863][ T2698] ? cgroup_seqfile_stop+0xc0/0xc0 [ 432.910046][ T2698] ? mutex_trylock+0x180/0x180 [ 432.914795][ T2698] ? __kasan_check_write+0x14/0x20 [ 432.919900][ T2698] kernfs_fop_write_iter+0x2d0/0x410 [ 432.925338][ T2698] ? cgroup_seqfile_stop+0xc0/0xc0 [ 432.930546][ T2698] vfs_write+0xc4a/0xf80 [ 432.934780][ T2698] ? slab_free_freelist_hook+0xcc/0x1a0 [ 432.940390][ T2698] ? kernel_write+0x420/0x420 [ 432.945046][ T2698] ? do_sys_openat2+0x397/0x470 [ 432.950060][ T2698] ? __kasan_check_read+0x11/0x20 [ 432.955151][ T2698] ? __fdget_pos+0x27e/0x310 [ 432.959732][ T2698] ksys_write+0x198/0x2c0 [ 432.964048][ T2698] ? __ia32_sys_read+0x90/0x90 [ 432.968806][ T2698] ? debug_smp_processor_id+0x17/0x20 [ 432.974156][ T2698] __x64_sys_write+0x7b/0x90 [ 432.978752][ T2698] do_syscall_64+0x34/0x70 [ 432.983411][ T2698] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 432.989803][ T2698] RIP: 0033:0x7f48883727a9 [ 432.994404][ T2698] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 433.014205][ T2698] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 433.023072][ T2698] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 433.031317][ T2698] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 433.040639][ T2698] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 433.048729][ T2698] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 433.056994][ T2698] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000d [ 433.065349][ T2698] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 433.097135][ T2692] FAULT_INJECTION: forcing a failure. [ 433.097135][ T2692] name failslab, interval 1, probability 0, space 0, times 0 [ 433.110350][ T2692] CPU: 0 PID: 2692 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 433.121278][ T2692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 433.131918][ T2692] Call Trace: [ 433.135211][ T2692] dump_stack_lvl+0x1e2/0x24b [ 433.140239][ T2692] ? panic+0x7d7/0x7d7 [ 433.144568][ T2692] ? bfq_pos_tree_add_move+0x43e/0x43e [ 433.150126][ T2692] ? selinux_kernfs_init_security+0x1a8/0x760 [ 433.156766][ T2692] dump_stack+0x15/0x17 [ 433.161026][ T2692] should_fail+0x3c0/0x510 [ 433.165453][ T2692] __should_failslab+0x9f/0xe0 [ 433.170219][ T2692] should_failslab+0x9/0x20 [ 433.174728][ T2692] kmem_cache_alloc+0x3f/0x300 [ 433.179682][ T2692] ? __kernfs_new_node+0xdb/0x6e0 [ 433.185229][ T2692] __kernfs_new_node+0xdb/0x6e0 [ 433.190444][ T2692] ? is_module_text_address+0xe1/0x140 [ 433.196081][ T2692] ? kernfs_new_node+0x170/0x170 [ 433.201113][ T2692] ? ptr_to_hashval+0x60/0x60 [ 433.206051][ T2692] ? arch_stack_walk+0xf8/0x140 [ 433.211117][ T2692] ? snprintf+0xd6/0x120 [ 433.216639][ T2692] kernfs_new_node+0x97/0x170 [ 433.222557][ T2692] __kernfs_create_file+0x4a/0x270 [ 433.227968][ T2692] cgroup_addrm_files+0xab8/0xfe0 [ 433.233460][ T2692] ? ____kasan_kmalloc+0xdc/0x110 [ 433.238893][ T2692] ? __kasan_kmalloc+0x9/0x10 [ 433.243575][ T2692] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 433.249589][ T2692] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 433.255756][ T2692] ? delete_node+0x759/0x7b0 [ 433.260424][ T2692] ? __kasan_check_read+0x11/0x20 [ 433.265592][ T2692] ? delete_node+0x759/0x7b0 [ 433.270199][ T2692] ? __kasan_check_write+0x14/0x20 [ 433.275429][ T2692] ? idr_replace+0x1c4/0x230 [ 433.280033][ T2692] ? idr_get_next+0x4b0/0x4b0 [ 433.284716][ T2692] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 433.290092][ T2692] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 433.295382][ T2692] css_populate_dir+0x137/0x370 [ 433.300273][ T2692] cgroup_apply_control_enable+0x8b9/0x12f0 [ 433.306162][ T2692] cgroup_apply_control+0x8e/0x7e0 [ 433.311292][ T2692] ? css_next_child+0x160/0x160 [ 433.316347][ T2692] ? stack_trace_save+0x12d/0x1f0 [ 433.321673][ T2692] ? io_schedule+0x120/0x120 [ 433.326786][ T2692] ? kernfs_fop_write_iter+0x15e/0x410 [ 433.332452][ T2692] ? __kasan_check_write+0x14/0x20 [ 433.338397][ T2692] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 433.343750][ T2692] cgroup_subtree_control_write+0xd19/0x1310 [ 433.349747][ T2692] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 433.356167][ T2692] ? __kasan_check_write+0x14/0x20 [ 433.361792][ T2692] ? _copy_from_iter+0x3fb/0xd60 [ 433.367869][ T2692] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 433.374030][ T2692] cgroup_file_write+0x28e/0x590 [ 433.378962][ T2692] ? cgroup_seqfile_stop+0xc0/0xc0 [ 433.384353][ T2692] ? mutex_trylock+0x180/0x180 [ 433.389117][ T2692] ? __kasan_check_write+0x14/0x20 [ 433.394241][ T2692] kernfs_fop_write_iter+0x2d0/0x410 [ 433.399618][ T2692] ? cgroup_seqfile_stop+0xc0/0xc0 [ 433.404725][ T2692] vfs_write+0xc4a/0xf80 [ 433.409045][ T2692] ? slab_free_freelist_hook+0xcc/0x1a0 [ 433.414671][ T2692] ? kernel_write+0x420/0x420 [ 433.419344][ T2692] ? do_sys_openat2+0x397/0x470 [ 433.424191][ T2692] ? __kasan_check_read+0x11/0x20 [ 433.429294][ T2692] ? __fdget_pos+0x27e/0x310 [ 433.433966][ T2692] ksys_write+0x198/0x2c0 [ 433.438283][ T2692] ? __ia32_sys_read+0x90/0x90 [ 433.443349][ T2692] ? debug_smp_processor_id+0x17/0x20 [ 433.448913][ T2692] __x64_sys_write+0x7b/0x90 [ 433.453577][ T2692] do_syscall_64+0x34/0x70 [ 433.457981][ T2692] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 433.463972][ T2692] RIP: 0033:0x7f48883727a9 [ 433.468374][ T2692] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 433.488545][ T2692] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 433.497161][ T2692] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 433.505465][ T2692] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 433.513602][ T2692] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 433.522336][ T2692] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 433.530469][ T2692] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000009 [ 433.539006][ T2692] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 433.567108][ T2687] FAULT_INJECTION: forcing a failure. [ 433.567108][ T2687] name failslab, interval 1, probability 0, space 0, times 0 [ 433.579884][ T2687] CPU: 0 PID: 2687 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 433.590376][ T2687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 433.600502][ T2687] Call Trace: [ 433.603849][ T2687] dump_stack_lvl+0x1e2/0x24b [ 433.608701][ T2687] ? panic+0x7d7/0x7d7 [ 433.612757][ T2687] ? bfq_pos_tree_add_move+0x43e/0x43e [ 433.618282][ T2687] ? selinux_kernfs_init_security+0x1a8/0x760 [ 433.624684][ T2687] dump_stack+0x15/0x17 [ 433.629066][ T2687] should_fail+0x3c0/0x510 [ 433.633495][ T2687] __should_failslab+0x9f/0xe0 [ 433.638255][ T2687] should_failslab+0x9/0x20 [ 433.642952][ T2687] kmem_cache_alloc+0x3f/0x300 [ 433.647716][ T2687] ? __kernfs_new_node+0xdb/0x6e0 [ 433.652920][ T2687] __kernfs_new_node+0xdb/0x6e0 [ 433.658112][ T2687] ? is_module_text_address+0xe1/0x140 [ 433.663565][ T2687] ? kernfs_new_node+0x170/0x170 [ 433.668574][ T2687] ? ptr_to_hashval+0x60/0x60 [ 433.673228][ T2687] ? arch_stack_walk+0xf8/0x140 [ 433.678087][ T2687] ? snprintf+0xd6/0x120 [ 433.682743][ T2687] kernfs_new_node+0x97/0x170 [ 433.687484][ T2687] __kernfs_create_file+0x4a/0x270 [ 433.692609][ T2687] cgroup_addrm_files+0xab8/0xfe0 [ 433.697702][ T2687] ? ____kasan_kmalloc+0xdc/0x110 [ 433.702797][ T2687] ? __kasan_kmalloc+0x9/0x10 [ 433.707673][ T2687] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 433.713375][ T2687] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 433.719514][ T2687] ? delete_node+0x759/0x7b0 [ 433.724355][ T2687] ? __kasan_check_read+0x11/0x20 [ 433.729359][ T2687] ? delete_node+0x759/0x7b0 [ 433.734116][ T2687] ? __kasan_check_write+0x14/0x20 [ 433.739208][ T2687] ? idr_replace+0x1c4/0x230 [ 433.743799][ T2687] ? idr_get_next+0x4b0/0x4b0 [ 433.748717][ T2687] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 433.753719][ T2687] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 433.759132][ T2687] css_populate_dir+0x137/0x370 [ 433.763965][ T2687] cgroup_apply_control_enable+0x8b9/0x12f0 [ 433.769840][ T2687] cgroup_apply_control+0x8e/0x7e0 [ 433.775121][ T2687] ? css_next_child+0x160/0x160 [ 433.779975][ T2687] ? stack_trace_save+0x12d/0x1f0 [ 433.784997][ T2687] ? io_schedule+0x120/0x120 [ 433.789673][ T2687] ? kernfs_fop_write_iter+0x15e/0x410 [ 433.795389][ T2687] ? __kasan_check_write+0x14/0x20 [ 433.800854][ T2687] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 433.806377][ T2687] cgroup_subtree_control_write+0xd19/0x1310 [ 433.812518][ T2687] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 433.818573][ T2687] ? __kasan_check_write+0x14/0x20 [ 433.823692][ T2687] ? _copy_from_iter+0x3fb/0xd60 [ 433.829081][ T2687] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 433.835157][ T2687] cgroup_file_write+0x28e/0x590 [ 433.840075][ T2687] ? cgroup_seqfile_stop+0xc0/0xc0 [ 433.845392][ T2687] ? mutex_trylock+0x180/0x180 [ 433.850224][ T2687] ? __kasan_check_write+0x14/0x20 [ 433.855406][ T2687] kernfs_fop_write_iter+0x2d0/0x410 [ 433.860760][ T2687] ? cgroup_seqfile_stop+0xc0/0xc0 [ 433.865877][ T2687] vfs_write+0xc4a/0xf80 [ 433.870102][ T2687] ? slab_free_freelist_hook+0xcc/0x1a0 [ 433.875717][ T2687] ? kernel_write+0x420/0x420 [ 433.880382][ T2687] ? do_sys_openat2+0x397/0x470 [ 433.885304][ T2687] ? __kasan_check_read+0x11/0x20 [ 433.890437][ T2687] ? __fdget_pos+0x27e/0x310 [ 433.895010][ T2687] ksys_write+0x198/0x2c0 [ 433.899370][ T2687] ? __ia32_sys_read+0x90/0x90 [ 433.904203][ T2687] ? debug_smp_processor_id+0x17/0x20 [ 433.909641][ T2687] __x64_sys_write+0x7b/0x90 [ 433.914212][ T2687] do_syscall_64+0x34/0x70 [ 433.918631][ T2687] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 433.924600][ T2687] RIP: 0033:0x7f48883727a9 [ 433.928998][ T2687] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 433.948757][ T2687] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 433.957499][ T2687] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 433.965554][ T2687] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 433.973505][ T2687] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 433.981472][ T2687] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 433.989428][ T2687] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000008 [ 433.997836][ T2687] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 434.047253][ T2699] FAULT_INJECTION: forcing a failure. [ 434.047253][ T2699] name failslab, interval 1, probability 0, space 0, times 0 [ 434.059895][ T2699] CPU: 1 PID: 2699 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 434.070307][ T2699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 434.080463][ T2699] Call Trace: [ 434.083770][ T2699] dump_stack_lvl+0x1e2/0x24b [ 434.088589][ T2699] ? bfq_pos_tree_add_move+0x43e/0x43e [ 434.094038][ T2699] ? selinux_kernfs_init_security+0x1a8/0x760 [ 434.100099][ T2699] dump_stack+0x15/0x17 [ 434.104253][ T2699] should_fail+0x3c0/0x510 [ 434.109362][ T2699] ? __kernfs_new_node+0x99/0x6e0 [ 434.114373][ T2699] __should_failslab+0x9f/0xe0 [ 434.119138][ T2699] should_failslab+0x9/0x20 [ 434.123627][ T2699] __kmalloc_track_caller+0x5f/0x350 [ 434.129170][ T2699] kstrdup_const+0x55/0x90 [ 434.133744][ T2699] __kernfs_new_node+0x99/0x6e0 [ 434.138581][ T2699] ? is_module_text_address+0xe1/0x140 [ 434.144349][ T2699] ? kernfs_new_node+0x170/0x170 [ 434.149410][ T2699] ? ptr_to_hashval+0x60/0x60 [ 434.154403][ T2699] ? mutex_lock+0xb2/0x1e0 [ 434.158849][ T2699] ? snprintf+0xd6/0x120 [ 434.163094][ T2699] ? mutex_unlock+0x29/0xf0 [ 434.167706][ T2699] kernfs_new_node+0x97/0x170 [ 434.172564][ T2699] __kernfs_create_file+0x4a/0x270 [ 434.177923][ T2699] cgroup_addrm_files+0xab8/0xfe0 [ 434.183788][ T2699] ? ____kasan_kmalloc+0xdc/0x110 [ 434.189220][ T2699] ? __kasan_kmalloc+0x9/0x10 [ 434.193894][ T2699] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 434.199594][ T2699] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 434.205918][ T2699] ? delete_node+0x759/0x7b0 [ 434.210617][ T2699] ? __kasan_check_read+0x11/0x20 [ 434.216079][ T2699] ? idr_replace+0x1c4/0x230 [ 434.220694][ T2699] ? idr_get_next+0x4b0/0x4b0 [ 434.225617][ T2699] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 434.230742][ T2699] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 434.235950][ T2699] css_populate_dir+0x137/0x370 [ 434.240976][ T2699] cgroup_apply_control_enable+0x8b9/0x12f0 [ 434.246959][ T2699] cgroup_apply_control+0x8e/0x7e0 [ 434.252073][ T2699] ? css_next_child+0x160/0x160 [ 434.256916][ T2699] ? stack_trace_save+0x12d/0x1f0 [ 434.261930][ T2699] ? io_schedule+0x120/0x120 [ 434.266504][ T2699] ? kernfs_fop_write_iter+0x15e/0x410 [ 434.272057][ T2699] ? __kasan_check_write+0x14/0x20 [ 434.277388][ T2699] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 434.282660][ T2699] cgroup_subtree_control_write+0xd19/0x1310 [ 434.288665][ T2699] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 434.294927][ T2699] ? __kasan_check_write+0x14/0x20 [ 434.300147][ T2699] ? _copy_from_iter+0x3fb/0xd60 [ 434.305093][ T2699] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 434.311258][ T2699] cgroup_file_write+0x28e/0x590 [ 434.316303][ T2699] ? cgroup_seqfile_stop+0xc0/0xc0 [ 434.321427][ T2699] ? mutex_trylock+0x180/0x180 [ 434.326282][ T2699] ? __kasan_check_write+0x14/0x20 [ 434.331486][ T2699] kernfs_fop_write_iter+0x2d0/0x410 [ 434.336963][ T2699] ? cgroup_seqfile_stop+0xc0/0xc0 [ 434.342062][ T2699] vfs_write+0xc4a/0xf80 [ 434.346382][ T2699] ? slab_free_freelist_hook+0xcc/0x1a0 [ 434.352113][ T2699] ? kernel_write+0x420/0x420 [ 434.356952][ T2699] ? do_sys_openat2+0x397/0x470 [ 434.361805][ T2699] ? __kasan_check_read+0x11/0x20 [ 434.366988][ T2699] ? __fdget_pos+0x27e/0x310 [ 434.371575][ T2699] ksys_write+0x198/0x2c0 [ 434.375891][ T2699] ? __ia32_sys_read+0x90/0x90 [ 434.380644][ T2699] ? debug_smp_processor_id+0x17/0x20 [ 434.386003][ T2699] __x64_sys_write+0x7b/0x90 [ 434.390892][ T2699] do_syscall_64+0x34/0x70 [ 434.395324][ T2699] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 434.401313][ T2699] RIP: 0033:0x7f48883727a9 [ 434.406341][ T2699] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 434.426500][ T2699] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 434.434932][ T2699] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 434.442895][ T2699] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 434.450856][ T2699] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 434.458919][ T2699] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 434.466901][ T2699] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000b [ 434.475391][ T2699] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 434.507346][ T2703] FAULT_INJECTION: forcing a failure. [ 434.507346][ T2703] name failslab, interval 1, probability 0, space 0, times 0 [ 434.520076][ T2703] CPU: 1 PID: 2703 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 434.531214][ T2703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 434.541446][ T2703] Call Trace: [ 434.544732][ T2703] dump_stack_lvl+0x1e2/0x24b [ 434.549395][ T2703] ? bfq_pos_tree_add_move+0x43e/0x43e [ 434.554845][ T2703] ? selinux_kernfs_init_security+0x1a8/0x760 [ 434.561108][ T2703] dump_stack+0x15/0x17 [ 434.565255][ T2703] should_fail+0x3c0/0x510 [ 434.569852][ T2703] ? __kernfs_new_node+0x99/0x6e0 [ 434.574870][ T2703] __should_failslab+0x9f/0xe0 [ 434.579621][ T2703] should_failslab+0x9/0x20 [ 434.584213][ T2703] __kmalloc_track_caller+0x5f/0x350 [ 434.589493][ T2703] kstrdup_const+0x55/0x90 [ 434.593909][ T2703] __kernfs_new_node+0x99/0x6e0 [ 434.598833][ T2703] ? is_module_text_address+0xe1/0x140 [ 434.604275][ T2703] ? kernfs_new_node+0x170/0x170 [ 434.609392][ T2703] ? ptr_to_hashval+0x60/0x60 [ 434.614053][ T2703] ? mutex_lock+0xb2/0x1e0 [ 434.618468][ T2703] ? snprintf+0xd6/0x120 [ 434.622917][ T2703] ? mutex_unlock+0x29/0xf0 [ 434.627404][ T2703] kernfs_new_node+0x97/0x170 [ 434.632327][ T2703] __kernfs_create_file+0x4a/0x270 [ 434.637564][ T2703] cgroup_addrm_files+0xab8/0xfe0 [ 434.642722][ T2703] ? ____kasan_kmalloc+0xdc/0x110 [ 434.647732][ T2703] ? __kasan_kmalloc+0x9/0x10 [ 434.652485][ T2703] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 434.658217][ T2703] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 434.664354][ T2703] ? delete_node+0x759/0x7b0 [ 434.669102][ T2703] ? __kasan_check_read+0x11/0x20 [ 434.674197][ T2703] ? idr_replace+0x1c4/0x230 [ 434.678783][ T2703] ? idr_get_next+0x4b0/0x4b0 [ 434.683439][ T2703] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 434.688560][ T2703] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 434.693761][ T2703] css_populate_dir+0x137/0x370 [ 434.698608][ T2703] cgroup_apply_control_enable+0x8b9/0x12f0 [ 434.704674][ T2703] cgroup_apply_control+0x8e/0x7e0 [ 434.709786][ T2703] ? css_next_child+0x160/0x160 [ 434.714826][ T2703] ? io_schedule+0x120/0x120 [ 434.719412][ T2703] ? kernfs_fop_write_iter+0x15e/0x410 [ 434.725189][ T2703] ? __kasan_check_write+0x14/0x20 [ 434.730300][ T2703] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 434.735754][ T2703] cgroup_subtree_control_write+0xd19/0x1310 [ 434.742123][ T2703] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 434.750094][ T2703] ? __kasan_check_write+0x14/0x20 [ 434.755722][ T2703] ? _copy_from_iter+0x3fb/0xd60 [ 434.760672][ T2703] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 434.766656][ T2703] cgroup_file_write+0x28e/0x590 [ 434.771763][ T2703] ? cgroup_seqfile_stop+0xc0/0xc0 [ 434.776964][ T2703] ? mutex_trylock+0x180/0x180 [ 434.781965][ T2703] ? __kasan_check_write+0x14/0x20 [ 434.787300][ T2703] kernfs_fop_write_iter+0x2d0/0x410 [ 434.792578][ T2703] ? cgroup_seqfile_stop+0xc0/0xc0 [ 434.798241][ T2703] vfs_write+0xc4a/0xf80 [ 434.802660][ T2703] ? kernel_write+0x420/0x420 [ 434.807327][ T2703] ? do_sys_openat2+0x397/0x470 [ 434.812661][ T2703] ? __kasan_check_read+0x11/0x20 [ 434.817898][ T2703] ? __fdget_pos+0x27e/0x310 [ 434.822603][ T2703] ksys_write+0x198/0x2c0 [ 434.826931][ T2703] ? __kasan_check_write+0x14/0x20 [ 434.832181][ T2703] ? __ia32_sys_read+0x90/0x90 [ 434.836963][ T2703] ? debug_smp_processor_id+0x17/0x20 [ 434.842414][ T2703] __x64_sys_write+0x7b/0x90 [ 434.846995][ T2703] do_syscall_64+0x34/0x70 [ 434.851522][ T2703] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 434.857510][ T2703] RIP: 0033:0x7f48883727a9 [ 434.862087][ T2703] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 434.882889][ T2703] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 434.892026][ T2703] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 434.900110][ T2703] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 434.908211][ T2703] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 434.916223][ T2703] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 434.924208][ T2703] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000c [ 434.932500][ T2703] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 434.957235][ T2704] FAULT_INJECTION: forcing a failure. [ 434.957235][ T2704] name failslab, interval 1, probability 0, space 0, times 0 [ 434.970425][ T2704] CPU: 0 PID: 2704 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 434.981016][ T2704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 434.991502][ T2704] Call Trace: [ 434.994850][ T2704] dump_stack_lvl+0x1e2/0x24b [ 434.999609][ T2704] ? bfq_pos_tree_add_move+0x43e/0x43e [ 435.005385][ T2704] ? selinux_kernfs_init_security+0x1a8/0x760 [ 435.011670][ T2704] dump_stack+0x15/0x17 [ 435.015919][ T2704] should_fail+0x3c0/0x510 [ 435.020321][ T2704] ? __kernfs_new_node+0x99/0x6e0 [ 435.025343][ T2704] __should_failslab+0x9f/0xe0 [ 435.030096][ T2704] should_failslab+0x9/0x20 [ 435.034689][ T2704] __kmalloc_track_caller+0x5f/0x350 [ 435.040420][ T2704] kstrdup_const+0x55/0x90 [ 435.045067][ T2704] __kernfs_new_node+0x99/0x6e0 [ 435.050144][ T2704] ? is_module_text_address+0xe1/0x140 [ 435.055620][ T2704] ? kernfs_new_node+0x170/0x170 [ 435.060562][ T2704] ? ptr_to_hashval+0x60/0x60 [ 435.065245][ T2704] ? mutex_lock+0xb2/0x1e0 [ 435.069745][ T2704] ? snprintf+0xd6/0x120 [ 435.074253][ T2704] ? mutex_unlock+0x29/0xf0 [ 435.078871][ T2704] kernfs_new_node+0x97/0x170 [ 435.083902][ T2704] __kernfs_create_file+0x4a/0x270 [ 435.089108][ T2704] cgroup_addrm_files+0xab8/0xfe0 [ 435.094150][ T2704] ? ____kasan_kmalloc+0xdc/0x110 [ 435.099171][ T2704] ? __kasan_kmalloc+0x9/0x10 [ 435.103937][ T2704] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 435.109908][ T2704] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 435.116311][ T2704] ? delete_node+0x759/0x7b0 [ 435.121067][ T2704] ? __kasan_check_read+0x11/0x20 [ 435.126191][ T2704] ? idr_replace+0x1c4/0x230 [ 435.130766][ T2704] ? idr_get_next+0x4b0/0x4b0 [ 435.135663][ T2704] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 435.140772][ T2704] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 435.146227][ T2704] css_populate_dir+0x137/0x370 [ 435.151279][ T2704] cgroup_apply_control_enable+0x8b9/0x12f0 [ 435.157564][ T2704] cgroup_apply_control+0x8e/0x7e0 [ 435.162761][ T2704] ? css_next_child+0x160/0x160 [ 435.167603][ T2704] ? stack_trace_save+0x12d/0x1f0 [ 435.172618][ T2704] ? io_schedule+0x120/0x120 [ 435.177199][ T2704] ? kernfs_fop_write_iter+0x15e/0x410 [ 435.182643][ T2704] ? __kasan_check_write+0x14/0x20 [ 435.187751][ T2704] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 435.193310][ T2704] cgroup_subtree_control_write+0xd19/0x1310 [ 435.199840][ T2704] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 435.206215][ T2704] ? __kasan_check_write+0x14/0x20 [ 435.211479][ T2704] ? _copy_from_iter+0x3fb/0xd60 [ 435.216511][ T2704] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 435.222601][ T2704] cgroup_file_write+0x28e/0x590 [ 435.227656][ T2704] ? cgroup_seqfile_stop+0xc0/0xc0 [ 435.232931][ T2704] ? mutex_trylock+0x180/0x180 [ 435.237724][ T2704] ? __kasan_check_write+0x14/0x20 [ 435.242831][ T2704] kernfs_fop_write_iter+0x2d0/0x410 [ 435.248220][ T2704] ? cgroup_seqfile_stop+0xc0/0xc0 [ 435.253507][ T2704] vfs_write+0xc4a/0xf80 [ 435.257743][ T2704] ? slab_free_freelist_hook+0xcc/0x1a0 [ 435.263278][ T2704] ? kernel_write+0x420/0x420 [ 435.268047][ T2704] ? do_sys_openat2+0x397/0x470 [ 435.273074][ T2704] ? __kasan_check_read+0x11/0x20 [ 435.278098][ T2704] ? __fdget_pos+0x27e/0x310 [ 435.282693][ T2704] ksys_write+0x198/0x2c0 [ 435.287302][ T2704] ? __ia32_sys_read+0x90/0x90 [ 435.292293][ T2704] ? debug_smp_processor_id+0x17/0x20 [ 435.297796][ T2704] __x64_sys_write+0x7b/0x90 [ 435.302393][ T2704] do_syscall_64+0x34/0x70 [ 435.306811][ T2704] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 435.312935][ T2704] RIP: 0033:0x7f48883727a9 [ 435.317522][ T2704] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 435.337469][ T2704] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 435.347516][ T2704] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 435.355746][ T2704] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 435.363802][ T2704] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 435.371766][ T2704] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 435.380014][ T2704] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000d [ 435.388537][ T2704] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 435.437085][ T2689] FAULT_INJECTION: forcing a failure. [ 435.437085][ T2689] name failslab, interval 1, probability 0, space 0, times 0 [ 435.450077][ T2689] CPU: 0 PID: 2689 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 435.461365][ T2689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 435.471510][ T2689] Call Trace: [ 435.474804][ T2689] dump_stack_lvl+0x1e2/0x24b [ 435.479468][ T2689] ? bfq_pos_tree_add_move+0x43e/0x43e [ 435.485048][ T2689] ? selinux_kernfs_init_security+0x1a8/0x760 [ 435.491587][ T2689] dump_stack+0x15/0x17 [ 435.496034][ T2689] should_fail+0x3c0/0x510 [ 435.500662][ T2689] ? __kernfs_new_node+0x99/0x6e0 [ 435.505798][ T2689] __should_failslab+0x9f/0xe0 [ 435.510579][ T2689] should_failslab+0x9/0x20 [ 435.515529][ T2689] __kmalloc_track_caller+0x5f/0x350 [ 435.521139][ T2689] kstrdup_const+0x55/0x90 [ 435.525682][ T2689] __kernfs_new_node+0x99/0x6e0 [ 435.530739][ T2689] ? is_module_text_address+0xe1/0x140 [ 435.536642][ T2689] ? kernfs_new_node+0x170/0x170 [ 435.542057][ T2689] ? ptr_to_hashval+0x60/0x60 [ 435.546839][ T2689] ? mutex_lock+0xb2/0x1e0 [ 435.551295][ T2689] ? snprintf+0xd6/0x120 [ 435.555757][ T2689] ? mutex_unlock+0x29/0xf0 [ 435.560258][ T2689] kernfs_new_node+0x97/0x170 [ 435.565099][ T2689] __kernfs_create_file+0x4a/0x270 [ 435.570295][ T2689] cgroup_addrm_files+0xab8/0xfe0 [ 435.575371][ T2689] ? ____kasan_kmalloc+0xdc/0x110 [ 435.580943][ T2689] ? __kasan_kmalloc+0x9/0x10 [ 435.585618][ T2689] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 435.591294][ T2689] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 435.597545][ T2689] ? delete_node+0x759/0x7b0 [ 435.602246][ T2689] ? __kasan_check_read+0x11/0x20 [ 435.607280][ T2689] ? idr_replace+0x1c4/0x230 [ 435.612106][ T2689] ? idr_get_next+0x4b0/0x4b0 [ 435.617129][ T2689] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 435.622581][ T2689] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 435.627863][ T2689] css_populate_dir+0x137/0x370 [ 435.635384][ T2689] cgroup_apply_control_enable+0x8b9/0x12f0 [ 435.641754][ T2689] cgroup_apply_control+0x8e/0x7e0 [ 435.646868][ T2689] ? css_next_child+0x160/0x160 [ 435.651798][ T2689] ? stack_trace_save+0x12d/0x1f0 [ 435.656911][ T2689] ? io_schedule+0x120/0x120 [ 435.661729][ T2689] ? kernfs_fop_write_iter+0x15e/0x410 [ 435.667212][ T2689] ? __kasan_check_write+0x14/0x20 [ 435.672481][ T2689] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 435.677774][ T2689] cgroup_subtree_control_write+0xd19/0x1310 [ 435.683926][ T2689] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 435.689984][ T2689] ? __kasan_check_write+0x14/0x20 [ 435.695155][ T2689] ? _copy_from_iter+0x3fb/0xd60 [ 435.700311][ T2689] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 435.706509][ T2689] cgroup_file_write+0x28e/0x590 [ 435.711451][ T2689] ? cgroup_seqfile_stop+0xc0/0xc0 [ 435.716736][ T2689] ? mutex_trylock+0x180/0x180 [ 435.721524][ T2689] ? __kasan_check_write+0x14/0x20 [ 435.726643][ T2689] kernfs_fop_write_iter+0x2d0/0x410 [ 435.731924][ T2689] ? cgroup_seqfile_stop+0xc0/0xc0 [ 435.737060][ T2689] vfs_write+0xc4a/0xf80 [ 435.741700][ T2689] ? slab_free_freelist_hook+0xcc/0x1a0 [ 435.747344][ T2689] ? kernel_write+0x420/0x420 [ 435.752494][ T2689] ? do_sys_openat2+0x397/0x470 [ 435.757509][ T2689] ? __kasan_check_read+0x11/0x20 [ 435.762546][ T2689] ? __fdget_pos+0x27e/0x310 [ 435.767317][ T2689] ksys_write+0x198/0x2c0 [ 435.771783][ T2689] ? __ia32_sys_read+0x90/0x90 [ 435.776733][ T2689] ? debug_smp_processor_id+0x17/0x20 [ 435.782454][ T2689] __x64_sys_write+0x7b/0x90 [ 435.787296][ T2689] do_syscall_64+0x34/0x70 [ 435.791814][ T2689] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 435.797797][ T2689] RIP: 0033:0x7f48883727a9 [ 435.802197][ T2689] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 435.822914][ T2689] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 435.831323][ T2689] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 435.839292][ T2689] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 435.847264][ T2689] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 435.855314][ T2689] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 435.863806][ T2689] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000009 [ 435.872076][ T2689] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 435.907308][ T2697] FAULT_INJECTION: forcing a failure. [ 435.907308][ T2697] name failslab, interval 1, probability 0, space 0, times 0 [ 435.920118][ T2697] CPU: 1 PID: 2697 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 435.930734][ T2697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 435.941036][ T2697] Call Trace: [ 435.944364][ T2697] dump_stack_lvl+0x1e2/0x24b [ 435.949024][ T2697] ? panic+0x7d7/0x7d7 [ 435.953246][ T2697] ? bfq_pos_tree_add_move+0x43e/0x43e [ 435.958690][ T2697] ? selinux_kernfs_init_security+0x1a8/0x760 [ 435.964895][ T2697] dump_stack+0x15/0x17 [ 435.969053][ T2697] should_fail+0x3c0/0x510 [ 435.973552][ T2697] __should_failslab+0x9f/0xe0 [ 435.978308][ T2697] should_failslab+0x9/0x20 [ 435.982798][ T2697] kmem_cache_alloc+0x3f/0x300 [ 435.987544][ T2697] ? __kernfs_new_node+0xdb/0x6e0 [ 435.992547][ T2697] __kernfs_new_node+0xdb/0x6e0 [ 435.997840][ T2697] ? is_module_text_address+0xe1/0x140 [ 436.003281][ T2697] ? kernfs_new_node+0x170/0x170 [ 436.008198][ T2697] ? ptr_to_hashval+0x60/0x60 [ 436.012881][ T2697] ? arch_stack_walk+0xf8/0x140 [ 436.017797][ T2697] ? snprintf+0xd6/0x120 [ 436.022134][ T2697] kernfs_new_node+0x97/0x170 [ 436.026839][ T2697] __kernfs_create_file+0x4a/0x270 [ 436.031990][ T2697] cgroup_addrm_files+0xab8/0xfe0 [ 436.037023][ T2697] ? ____kasan_kmalloc+0xdc/0x110 [ 436.042205][ T2697] ? __kasan_kmalloc+0x9/0x10 [ 436.047175][ T2697] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 436.052704][ T2697] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 436.058924][ T2697] ? delete_node+0x759/0x7b0 [ 436.063667][ T2697] ? __kasan_check_read+0x11/0x20 [ 436.069182][ T2697] ? delete_node+0x759/0x7b0 [ 436.073923][ T2697] ? __kasan_check_write+0x14/0x20 [ 436.079013][ T2697] ? idr_replace+0x1c4/0x230 [ 436.083669][ T2697] ? idr_get_next+0x4b0/0x4b0 [ 436.088326][ T2697] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 436.093330][ T2697] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 436.098533][ T2697] css_populate_dir+0x137/0x370 [ 436.103395][ T2697] cgroup_apply_control_enable+0x8b9/0x12f0 [ 436.109315][ T2697] cgroup_apply_control+0x8e/0x7e0 [ 436.114415][ T2697] ? css_next_child+0x160/0x160 [ 436.119249][ T2697] ? stack_trace_save+0x12d/0x1f0 [ 436.124406][ T2697] ? io_schedule+0x120/0x120 [ 436.129017][ T2697] ? kernfs_fop_write_iter+0x15e/0x410 [ 436.134463][ T2697] ? __kasan_check_write+0x14/0x20 [ 436.139559][ T2697] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 436.144914][ T2697] cgroup_subtree_control_write+0xd19/0x1310 [ 436.151219][ T2697] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 436.157278][ T2697] ? __kasan_check_write+0x14/0x20 [ 436.162463][ T2697] ? _copy_from_iter+0x3fb/0xd60 [ 436.167648][ T2697] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 436.173867][ T2697] cgroup_file_write+0x28e/0x590 [ 436.179005][ T2697] ? cgroup_seqfile_stop+0xc0/0xc0 [ 436.184404][ T2697] ? mutex_trylock+0x180/0x180 [ 436.189406][ T2697] ? __kasan_check_write+0x14/0x20 [ 436.194504][ T2697] kernfs_fop_write_iter+0x2d0/0x410 [ 436.199872][ T2697] ? cgroup_seqfile_stop+0xc0/0xc0 [ 436.205081][ T2697] vfs_write+0xc4a/0xf80 [ 436.209331][ T2697] ? slab_free_freelist_hook+0xcc/0x1a0 [ 436.215212][ T2697] ? kernel_write+0x420/0x420 [ 436.219870][ T2697] ? do_sys_openat2+0x397/0x470 [ 436.224879][ T2697] ? __kasan_check_read+0x11/0x20 [ 436.229884][ T2697] ? __fdget_pos+0x27e/0x310 [ 436.234472][ T2697] ksys_write+0x198/0x2c0 [ 436.238819][ T2697] ? __ia32_sys_read+0x90/0x90 [ 436.243579][ T2697] ? debug_smp_processor_id+0x17/0x20 [ 436.248938][ T2697] __x64_sys_write+0x7b/0x90 [ 436.253538][ T2697] do_syscall_64+0x34/0x70 [ 436.257949][ T2697] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 436.264292][ T2697] RIP: 0033:0x7f48883727a9 [ 436.268798][ T2697] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 436.288748][ T2697] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 436.297522][ T2697] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 436.305846][ T2697] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 436.313797][ T2697] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 436.321951][ T2697] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 436.330014][ T2697] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000008 [ 436.338363][ T2697] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 436.377292][ T2705] FAULT_INJECTION: forcing a failure. [ 436.377292][ T2705] name failslab, interval 1, probability 0, space 0, times 0 [ 436.390229][ T2705] CPU: 0 PID: 2705 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 436.400718][ T2705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 436.410774][ T2705] Call Trace: [ 436.414063][ T2705] dump_stack_lvl+0x1e2/0x24b [ 436.418755][ T2705] ? bfq_pos_tree_add_move+0x43e/0x43e [ 436.424202][ T2705] ? selinux_kernfs_init_security+0x1a8/0x760 [ 436.430539][ T2705] dump_stack+0x15/0x17 [ 436.434707][ T2705] should_fail+0x3c0/0x510 [ 436.439140][ T2705] ? __kernfs_new_node+0x99/0x6e0 [ 436.444163][ T2705] __should_failslab+0x9f/0xe0 [ 436.449113][ T2705] should_failslab+0x9/0x20 [ 436.453617][ T2705] __kmalloc_track_caller+0x5f/0x350 [ 436.459624][ T2705] kstrdup_const+0x55/0x90 [ 436.464116][ T2705] __kernfs_new_node+0x99/0x6e0 [ 436.469067][ T2705] ? is_module_text_address+0xe1/0x140 [ 436.474761][ T2705] ? kernfs_new_node+0x170/0x170 [ 436.480128][ T2705] ? ptr_to_hashval+0x60/0x60 [ 436.484904][ T2705] ? mutex_lock+0xb2/0x1e0 [ 436.489669][ T2705] ? snprintf+0xd6/0x120 [ 436.494128][ T2705] ? mutex_unlock+0x29/0xf0 [ 436.498960][ T2705] kernfs_new_node+0x97/0x170 [ 436.503680][ T2705] __kernfs_create_file+0x4a/0x270 [ 436.509044][ T2705] cgroup_addrm_files+0xab8/0xfe0 [ 436.514378][ T2705] ? ____kasan_kmalloc+0xdc/0x110 [ 436.519649][ T2705] ? __kasan_kmalloc+0x9/0x10 [ 436.524531][ T2705] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 436.530190][ T2705] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 436.536851][ T2705] ? delete_node+0x759/0x7b0 [ 436.541652][ T2705] ? __kasan_check_read+0x11/0x20 [ 436.546691][ T2705] ? idr_replace+0x1c4/0x230 [ 436.551654][ T2705] ? idr_get_next+0x4b0/0x4b0 [ 436.556414][ T2705] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 436.561612][ T2705] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 436.566946][ T2705] css_populate_dir+0x137/0x370 [ 436.571908][ T2705] cgroup_apply_control_enable+0x8b9/0x12f0 [ 436.577793][ T2705] cgroup_apply_control+0x8e/0x7e0 [ 436.582901][ T2705] ? css_next_child+0x160/0x160 [ 436.587965][ T2705] ? stack_trace_save+0x12d/0x1f0 [ 436.593143][ T2705] ? io_schedule+0x120/0x120 [ 436.597981][ T2705] ? kernfs_fop_write_iter+0x15e/0x410 [ 436.603797][ T2705] ? __kasan_check_write+0x14/0x20 [ 436.609109][ T2705] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 436.614542][ T2705] cgroup_subtree_control_write+0xd19/0x1310 [ 436.620554][ T2705] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 436.626642][ T2705] ? __kasan_check_write+0x14/0x20 [ 436.631905][ T2705] ? _copy_from_iter+0x3fb/0xd60 [ 436.636891][ T2705] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 436.643180][ T2705] cgroup_file_write+0x28e/0x590 [ 436.648236][ T2705] ? cgroup_seqfile_stop+0xc0/0xc0 [ 436.653340][ T2705] ? mutex_trylock+0x180/0x180 [ 436.658310][ T2705] ? __kasan_check_write+0x14/0x20 [ 436.663570][ T2705] kernfs_fop_write_iter+0x2d0/0x410 [ 436.668952][ T2705] ? cgroup_seqfile_stop+0xc0/0xc0 [ 436.674143][ T2705] vfs_write+0xc4a/0xf80 [ 436.678472][ T2705] ? slab_free_freelist_hook+0xcc/0x1a0 [ 436.684286][ T2705] ? kernel_write+0x420/0x420 [ 436.689450][ T2705] ? do_sys_openat2+0x397/0x470 [ 436.694697][ T2705] ? __kasan_check_read+0x11/0x20 [ 436.700036][ T2705] ? __fdget_pos+0x27e/0x310 [ 436.705060][ T2705] ksys_write+0x198/0x2c0 [ 436.709493][ T2705] ? __ia32_sys_read+0x90/0x90 [ 436.714354][ T2705] ? debug_smp_processor_id+0x17/0x20 [ 436.719738][ T2705] __x64_sys_write+0x7b/0x90 [ 436.724353][ T2705] do_syscall_64+0x34/0x70 [ 436.728790][ T2705] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 436.734667][ T2705] RIP: 0033:0x7f48883727a9 [ 436.739197][ T2705] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 436.759186][ T2705] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 436.767624][ T2705] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 436.775856][ T2705] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 436.784362][ T2705] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 436.792702][ T2705] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 436.800765][ T2705] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000e [ 436.809241][ T2705] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 436.857189][ T2700] FAULT_INJECTION: forcing a failure. [ 436.857189][ T2700] name failslab, interval 1, probability 0, space 0, times 0 [ 436.870454][ T2700] CPU: 1 PID: 2700 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 436.881251][ T2700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 436.891757][ T2700] Call Trace: [ 436.895078][ T2700] dump_stack_lvl+0x1e2/0x24b [ 436.899835][ T2700] ? panic+0x7d7/0x7d7 [ 436.903892][ T2700] ? bfq_pos_tree_add_move+0x43e/0x43e [ 436.909818][ T2700] ? selinux_kernfs_init_security+0x1a8/0x760 [ 436.916022][ T2700] dump_stack+0x15/0x17 [ 436.920259][ T2700] should_fail+0x3c0/0x510 [ 436.924686][ T2700] __should_failslab+0x9f/0xe0 [ 436.929746][ T2700] should_failslab+0x9/0x20 [ 436.934396][ T2700] kmem_cache_alloc+0x3f/0x300 [ 436.939198][ T2700] ? __kernfs_new_node+0xdb/0x6e0 [ 436.944352][ T2700] __kernfs_new_node+0xdb/0x6e0 [ 436.949213][ T2700] ? is_module_text_address+0xe1/0x140 [ 436.954659][ T2700] ? kernfs_new_node+0x170/0x170 [ 436.959585][ T2700] ? ptr_to_hashval+0x60/0x60 [ 436.964271][ T2700] ? arch_stack_walk+0xf8/0x140 [ 436.969166][ T2700] ? snprintf+0xd6/0x120 [ 436.973610][ T2700] kernfs_new_node+0x97/0x170 [ 436.978283][ T2700] __kernfs_create_file+0x4a/0x270 [ 436.983398][ T2700] cgroup_addrm_files+0xab8/0xfe0 [ 436.988418][ T2700] ? ____kasan_kmalloc+0xdc/0x110 [ 436.993478][ T2700] ? __kasan_kmalloc+0x9/0x10 [ 436.998281][ T2700] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 437.003831][ T2700] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 437.010372][ T2700] ? delete_node+0x759/0x7b0 [ 437.015271][ T2700] ? __kasan_check_read+0x11/0x20 [ 437.020475][ T2700] ? delete_node+0x759/0x7b0 [ 437.025066][ T2700] ? __kasan_check_write+0x14/0x20 [ 437.030571][ T2700] ? idr_replace+0x1c4/0x230 [ 437.035490][ T2700] ? idr_get_next+0x4b0/0x4b0 [ 437.040648][ T2700] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 437.045763][ T2700] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 437.050958][ T2700] css_populate_dir+0x137/0x370 [ 437.056418][ T2700] cgroup_apply_control_enable+0x8b9/0x12f0 [ 437.062325][ T2700] cgroup_apply_control+0x8e/0x7e0 [ 437.067429][ T2700] ? css_next_child+0x160/0x160 [ 437.072423][ T2700] ? stack_trace_save+0x12d/0x1f0 [ 437.077563][ T2700] ? io_schedule+0x120/0x120 [ 437.082152][ T2700] ? kernfs_fop_write_iter+0x15e/0x410 [ 437.087726][ T2700] ? __kasan_check_write+0x14/0x20 [ 437.092839][ T2700] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 437.098134][ T2700] cgroup_subtree_control_write+0xd19/0x1310 [ 437.105769][ T2700] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 437.112199][ T2700] ? __kasan_check_write+0x14/0x20 [ 437.117579][ T2700] ? _copy_from_iter+0x3fb/0xd60 [ 437.122702][ T2700] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 437.129491][ T2700] cgroup_file_write+0x28e/0x590 [ 437.134449][ T2700] ? cgroup_seqfile_stop+0xc0/0xc0 [ 437.139551][ T2700] ? mutex_trylock+0x180/0x180 [ 437.144321][ T2700] ? __kasan_check_write+0x14/0x20 [ 437.149422][ T2700] kernfs_fop_write_iter+0x2d0/0x410 [ 437.154889][ T2700] ? cgroup_seqfile_stop+0xc0/0xc0 [ 437.160033][ T2700] vfs_write+0xc4a/0xf80 [ 437.164366][ T2700] ? slab_free_freelist_hook+0xcc/0x1a0 [ 437.170160][ T2700] ? kernel_write+0x420/0x420 [ 437.175239][ T2700] ? do_sys_openat2+0x397/0x470 [ 437.180188][ T2700] ? __kasan_check_read+0x11/0x20 [ 437.185253][ T2700] ? __fdget_pos+0x27e/0x310 [ 437.189867][ T2700] ksys_write+0x198/0x2c0 [ 437.194314][ T2700] ? __kasan_check_write+0x14/0x20 [ 437.199796][ T2700] ? __ia32_sys_read+0x90/0x90 [ 437.204576][ T2700] ? debug_smp_processor_id+0x17/0x20 [ 437.210157][ T2700] __x64_sys_write+0x7b/0x90 [ 437.214837][ T2700] do_syscall_64+0x34/0x70 [ 437.219397][ T2700] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 437.225578][ T2700] RIP: 0033:0x7f48883727a9 [ 437.230278][ T2700] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 437.250244][ T2700] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 437.258925][ T2700] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 437.266883][ T2700] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 437.274934][ T2700] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 437.283016][ T2700] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 437.291085][ T2700] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000e [ 437.299215][ T2700] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 437.327110][ T2702] FAULT_INJECTION: forcing a failure. [ 437.327110][ T2702] name failslab, interval 1, probability 0, space 0, times 0 [ 437.341354][ T2702] CPU: 1 PID: 2702 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 437.352421][ T2702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 437.363560][ T2702] Call Trace: [ 437.366855][ T2702] dump_stack_lvl+0x1e2/0x24b [ 437.371751][ T2702] ? panic+0x7d7/0x7d7 [ 437.375818][ T2702] ? bfq_pos_tree_add_move+0x43e/0x43e [ 437.381296][ T2702] ? selinux_kernfs_init_security+0x1a8/0x760 [ 437.387998][ T2702] dump_stack+0x15/0x17 [ 437.392152][ T2702] should_fail+0x3c0/0x510 [ 437.396817][ T2702] __should_failslab+0x9f/0xe0 [ 437.401671][ T2702] should_failslab+0x9/0x20 [ 437.406351][ T2702] kmem_cache_alloc+0x3f/0x300 [ 437.411240][ T2702] ? __kernfs_new_node+0xdb/0x6e0 [ 437.416371][ T2702] __kernfs_new_node+0xdb/0x6e0 [ 437.421571][ T2702] ? is_module_text_address+0xe1/0x140 [ 437.427523][ T2702] ? kernfs_new_node+0x170/0x170 [ 437.432611][ T2702] ? ptr_to_hashval+0x60/0x60 [ 437.437288][ T2702] ? arch_stack_walk+0xf8/0x140 [ 437.443427][ T2702] ? snprintf+0xd6/0x120 [ 437.447780][ T2702] kernfs_new_node+0x97/0x170 [ 437.452447][ T2702] __kernfs_create_file+0x4a/0x270 [ 437.457690][ T2702] cgroup_addrm_files+0xab8/0xfe0 [ 437.462706][ T2702] ? ____kasan_kmalloc+0xdc/0x110 [ 437.467720][ T2702] ? __kasan_kmalloc+0x9/0x10 [ 437.472567][ T2702] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 437.478317][ T2702] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 437.484490][ T2702] ? delete_node+0x759/0x7b0 [ 437.489083][ T2702] ? __kasan_check_read+0x11/0x20 [ 437.494491][ T2702] ? delete_node+0x759/0x7b0 [ 437.499178][ T2702] ? __kasan_check_write+0x14/0x20 [ 437.504555][ T2702] ? idr_replace+0x1c4/0x230 [ 437.510944][ T2702] ? idr_get_next+0x4b0/0x4b0 [ 437.516149][ T2702] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 437.521489][ T2702] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 437.526894][ T2702] css_populate_dir+0x137/0x370 [ 437.531997][ T2702] cgroup_apply_control_enable+0x8b9/0x12f0 [ 437.538645][ T2702] cgroup_apply_control+0x8e/0x7e0 [ 437.543870][ T2702] ? css_next_child+0x160/0x160 [ 437.548814][ T2702] ? stack_trace_save+0x12d/0x1f0 [ 437.553850][ T2702] ? io_schedule+0x120/0x120 [ 437.558544][ T2702] ? kernfs_fop_write_iter+0x15e/0x410 [ 437.564261][ T2702] ? __kasan_check_write+0x14/0x20 [ 437.569699][ T2702] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 437.574991][ T2702] cgroup_subtree_control_write+0xd19/0x1310 [ 437.581180][ T2702] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 437.587605][ T2702] ? __kasan_check_write+0x14/0x20 [ 437.592727][ T2702] ? _copy_from_iter+0x3fb/0xd60 [ 437.597761][ T2702] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 437.603931][ T2702] cgroup_file_write+0x28e/0x590 [ 437.609088][ T2702] ? cgroup_seqfile_stop+0xc0/0xc0 [ 437.614209][ T2702] ? mutex_trylock+0x180/0x180 [ 437.619104][ T2702] ? __kasan_check_write+0x14/0x20 [ 437.624217][ T2702] kernfs_fop_write_iter+0x2d0/0x410 [ 437.629662][ T2702] ? cgroup_seqfile_stop+0xc0/0xc0 [ 437.634855][ T2702] vfs_write+0xc4a/0xf80 [ 437.639295][ T2702] ? slab_free_freelist_hook+0xcc/0x1a0 [ 437.644960][ T2702] ? kernel_write+0x420/0x420 [ 437.649646][ T2702] ? do_sys_openat2+0x397/0x470 [ 437.654592][ T2702] ? __kasan_check_read+0x11/0x20 [ 437.659717][ T2702] ? __fdget_pos+0x27e/0x310 [ 437.664300][ T2702] ksys_write+0x198/0x2c0 [ 437.668969][ T2702] ? __ia32_sys_read+0x90/0x90 [ 437.673828][ T2702] ? debug_smp_processor_id+0x17/0x20 [ 437.679394][ T2702] __x64_sys_write+0x7b/0x90 [ 437.683982][ T2702] do_syscall_64+0x34/0x70 [ 437.688413][ T2702] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 437.694305][ T2702] RIP: 0033:0x7f48883727a9 [ 437.698709][ T2702] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 437.718916][ T2702] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 437.727419][ T2702] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 437.735401][ T2702] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 437.743532][ T2702] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 437.751627][ T2702] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 437.759949][ T2702] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000009 [ 437.768437][ T2702] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 437.817105][ T2706] FAULT_INJECTION: forcing a failure. [ 437.817105][ T2706] name failslab, interval 1, probability 0, space 0, times 0 [ 437.830077][ T2706] CPU: 1 PID: 2706 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 437.840830][ T2706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 437.851633][ T2706] Call Trace: [ 437.855014][ T2706] dump_stack_lvl+0x1e2/0x24b [ 437.859833][ T2706] ? panic+0x7d7/0x7d7 [ 437.864073][ T2706] ? bfq_pos_tree_add_move+0x43e/0x43e [ 437.869794][ T2706] ? selinux_kernfs_init_security+0x1a8/0x760 [ 437.876156][ T2706] ? ___slab_alloc+0xa9/0x2e0 [ 437.881008][ T2706] dump_stack+0x15/0x17 [ 437.885516][ T2706] should_fail+0x3c0/0x510 [ 437.890281][ T2706] __should_failslab+0x9f/0xe0 [ 437.895181][ T2706] should_failslab+0x9/0x20 [ 437.899817][ T2706] kmem_cache_alloc+0x3f/0x300 [ 437.904598][ T2706] ? __kernfs_new_node+0xdb/0x6e0 [ 437.910400][ T2706] __kernfs_new_node+0xdb/0x6e0 [ 437.915323][ T2706] ? is_module_text_address+0xe1/0x140 [ 437.920908][ T2706] ? kernfs_new_node+0x170/0x170 [ 437.926117][ T2706] ? ptr_to_hashval+0x60/0x60 [ 437.930888][ T2706] ? arch_stack_walk+0xf8/0x140 [ 437.935825][ T2706] ? snprintf+0xd6/0x120 [ 437.940071][ T2706] kernfs_new_node+0x97/0x170 [ 437.945009][ T2706] __kernfs_create_file+0x4a/0x270 [ 437.950127][ T2706] cgroup_addrm_files+0xab8/0xfe0 [ 437.955162][ T2706] ? ____kasan_kmalloc+0xdc/0x110 [ 437.960334][ T2706] ? __kasan_kmalloc+0x9/0x10 [ 437.965012][ T2706] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 437.970569][ T2706] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 437.976736][ T2706] ? delete_node+0x759/0x7b0 [ 437.981523][ T2706] ? __kasan_check_read+0x11/0x20 [ 437.986783][ T2706] ? delete_node+0x759/0x7b0 [ 437.991409][ T2706] ? __kasan_check_write+0x14/0x20 [ 437.996821][ T2706] ? idr_replace+0x1c4/0x230 [ 438.001408][ T2706] ? idr_get_next+0x4b0/0x4b0 [ 438.006085][ T2706] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 438.011193][ T2706] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 438.016659][ T2706] css_populate_dir+0x137/0x370 [ 438.021784][ T2706] cgroup_apply_control_enable+0x8b9/0x12f0 [ 438.028546][ T2706] cgroup_apply_control+0x8e/0x7e0 [ 438.033859][ T2706] ? css_next_child+0x160/0x160 [ 438.039103][ T2706] ? stack_trace_save+0x12d/0x1f0 [ 438.044309][ T2706] ? io_schedule+0x120/0x120 [ 438.049002][ T2706] ? kernfs_fop_write_iter+0x15e/0x410 [ 438.054530][ T2706] ? __kasan_check_write+0x14/0x20 [ 438.059756][ T2706] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 438.065121][ T2706] cgroup_subtree_control_write+0xd19/0x1310 [ 438.071090][ T2706] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 438.077178][ T2706] ? __kasan_check_write+0x14/0x20 [ 438.082412][ T2706] ? _copy_from_iter+0x3fb/0xd60 [ 438.087415][ T2706] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 438.093687][ T2706] cgroup_file_write+0x28e/0x590 [ 438.098683][ T2706] ? cgroup_seqfile_stop+0xc0/0xc0 [ 438.103963][ T2706] ? mutex_trylock+0x180/0x180 [ 438.109182][ T2706] ? __kasan_check_write+0x14/0x20 [ 438.114330][ T2706] kernfs_fop_write_iter+0x2d0/0x410 [ 438.119639][ T2706] ? cgroup_seqfile_stop+0xc0/0xc0 [ 438.125212][ T2706] vfs_write+0xc4a/0xf80 [ 438.129812][ T2706] ? slab_free_freelist_hook+0xcc/0x1a0 [ 438.136046][ T2706] ? kernel_write+0x420/0x420 [ 438.140849][ T2706] ? do_sys_openat2+0x397/0x470 [ 438.146091][ T2706] ? __kasan_check_read+0x11/0x20 [ 438.151638][ T2706] ? __fdget_pos+0x27e/0x310 [ 438.156411][ T2706] ksys_write+0x198/0x2c0 [ 438.160745][ T2706] ? __ia32_sys_read+0x90/0x90 [ 438.165907][ T2706] ? debug_smp_processor_id+0x17/0x20 [ 438.171360][ T2706] __x64_sys_write+0x7b/0x90 [ 438.176057][ T2706] do_syscall_64+0x34/0x70 [ 438.180732][ T2706] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 438.186902][ T2706] RIP: 0033:0x7f48883727a9 [ 438.191409][ T2706] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 438.211721][ T2706] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 438.220349][ T2706] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 438.228328][ T2706] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 438.236292][ T2706] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 438.244346][ T2706] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 438.252299][ T2706] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000a [ 438.260561][ T2706] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 438.307204][ T2708] FAULT_INJECTION: forcing a failure. [ 438.307204][ T2708] name failslab, interval 1, probability 0, space 0, times 0 [ 438.320039][ T2708] CPU: 0 PID: 2708 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 438.330697][ T2708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 438.340819][ T2708] Call Trace: [ 438.344101][ T2708] dump_stack_lvl+0x1e2/0x24b [ 438.348846][ T2708] ? bfq_pos_tree_add_move+0x43e/0x43e [ 438.354562][ T2708] ? selinux_kernfs_init_security+0x1a8/0x760 [ 438.360638][ T2708] dump_stack+0x15/0x17 [ 438.364796][ T2708] should_fail+0x3c0/0x510 [ 438.369491][ T2708] ? __kernfs_new_node+0x99/0x6e0 [ 438.374525][ T2708] __should_failslab+0x9f/0xe0 [ 438.379271][ T2708] should_failslab+0x9/0x20 [ 438.383855][ T2708] __kmalloc_track_caller+0x5f/0x350 [ 438.389205][ T2708] kstrdup_const+0x55/0x90 [ 438.393685][ T2708] __kernfs_new_node+0x99/0x6e0 [ 438.398522][ T2708] ? is_module_text_address+0xe1/0x140 [ 438.403955][ T2708] ? kernfs_new_node+0x170/0x170 [ 438.408867][ T2708] ? ptr_to_hashval+0x60/0x60 [ 438.413539][ T2708] ? mutex_lock+0xb2/0x1e0 [ 438.417931][ T2708] ? snprintf+0xd6/0x120 [ 438.422147][ T2708] ? mutex_unlock+0x29/0xf0 [ 438.426644][ T2708] kernfs_new_node+0x97/0x170 [ 438.431301][ T2708] __kernfs_create_file+0x4a/0x270 [ 438.436443][ T2708] cgroup_addrm_files+0xab8/0xfe0 [ 438.441484][ T2708] ? ____kasan_kmalloc+0xdc/0x110 [ 438.446621][ T2708] ? __kasan_kmalloc+0x9/0x10 [ 438.451385][ T2708] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 438.456948][ T2708] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 438.463204][ T2708] ? delete_node+0x759/0x7b0 [ 438.467802][ T2708] ? __kasan_check_read+0x11/0x20 [ 438.472892][ T2708] ? idr_replace+0x1c4/0x230 [ 438.477560][ T2708] ? idr_get_next+0x4b0/0x4b0 [ 438.482218][ T2708] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 438.487220][ T2708] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 438.492395][ T2708] css_populate_dir+0x137/0x370 [ 438.497632][ T2708] cgroup_apply_control_enable+0x8b9/0x12f0 [ 438.503895][ T2708] cgroup_apply_control+0x8e/0x7e0 [ 438.509261][ T2708] ? css_next_child+0x160/0x160 [ 438.514093][ T2708] ? io_schedule+0x120/0x120 [ 438.518781][ T2708] ? kernfs_fop_write_iter+0x15e/0x410 [ 438.524232][ T2708] ? __kasan_check_write+0x14/0x20 [ 438.529342][ T2708] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 438.534618][ T2708] cgroup_subtree_control_write+0xd19/0x1310 [ 438.540627][ T2708] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 438.546670][ T2708] ? __kasan_check_write+0x14/0x20 [ 438.551769][ T2708] ? _copy_from_iter+0x3fb/0xd60 [ 438.556694][ T2708] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 438.562646][ T2708] cgroup_file_write+0x28e/0x590 [ 438.567562][ T2708] ? cgroup_seqfile_stop+0xc0/0xc0 [ 438.572920][ T2708] ? mutex_trylock+0x180/0x180 [ 438.577669][ T2708] ? __kasan_check_write+0x14/0x20 [ 438.583024][ T2708] kernfs_fop_write_iter+0x2d0/0x410 [ 438.588294][ T2708] ? cgroup_seqfile_stop+0xc0/0xc0 [ 438.593448][ T2708] vfs_write+0xc4a/0xf80 [ 438.597666][ T2708] ? kernel_write+0x420/0x420 [ 438.602333][ T2708] ? do_sys_openat2+0x397/0x470 [ 438.607166][ T2708] ? __kasan_check_read+0x11/0x20 [ 438.612273][ T2708] ? __fdget_pos+0x27e/0x310 [ 438.617015][ T2708] ksys_write+0x198/0x2c0 [ 438.621408][ T2708] ? __kasan_check_write+0x14/0x20 [ 438.626491][ T2708] ? __ia32_sys_read+0x90/0x90 [ 438.631319][ T2708] ? debug_smp_processor_id+0x17/0x20 [ 438.636783][ T2708] __x64_sys_write+0x7b/0x90 [ 438.641348][ T2708] do_syscall_64+0x34/0x70 [ 438.645774][ T2708] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 438.651733][ T2708] RIP: 0033:0x7f48883727a9 [ 438.656127][ T2708] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 438.676371][ T2708] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 438.684758][ T2708] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 438.692820][ T2708] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 438.700890][ T2708] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 438.709029][ T2708] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 438.717183][ T2708] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000f [ 438.725497][ T2708] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 438.767055][ T2711] FAULT_INJECTION: forcing a failure. [ 438.767055][ T2711] name failslab, interval 1, probability 0, space 0, times 0 [ 438.780220][ T2711] CPU: 0 PID: 2711 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 438.790773][ T2711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 438.801011][ T2711] Call Trace: [ 438.804353][ T2711] dump_stack_lvl+0x1e2/0x24b [ 438.809047][ T2711] ? bfq_pos_tree_add_move+0x43e/0x43e [ 438.814579][ T2711] ? selinux_kernfs_init_security+0x1a8/0x760 [ 438.820843][ T2711] dump_stack+0x15/0x17 [ 438.824998][ T2711] should_fail+0x3c0/0x510 [ 438.829405][ T2711] ? __kernfs_new_node+0x99/0x6e0 [ 438.834502][ T2711] __should_failslab+0x9f/0xe0 [ 438.839264][ T2711] should_failslab+0x9/0x20 [ 438.843758][ T2711] __kmalloc_track_caller+0x5f/0x350 [ 438.849049][ T2711] kstrdup_const+0x55/0x90 [ 438.853852][ T2711] __kernfs_new_node+0x99/0x6e0 [ 438.859117][ T2711] ? is_module_text_address+0xe1/0x140 [ 438.864689][ T2711] ? kernfs_new_node+0x170/0x170 [ 438.870079][ T2711] ? ptr_to_hashval+0x60/0x60 [ 438.874760][ T2711] ? mutex_lock+0xb2/0x1e0 [ 438.879193][ T2711] ? snprintf+0xd6/0x120 [ 438.883448][ T2711] ? mutex_unlock+0x29/0xf0 [ 438.887982][ T2711] kernfs_new_node+0x97/0x170 [ 438.893063][ T2711] __kernfs_create_file+0x4a/0x270 [ 438.898200][ T2711] cgroup_addrm_files+0xab8/0xfe0 [ 438.903269][ T2711] ? ____kasan_kmalloc+0xdc/0x110 [ 438.908291][ T2711] ? __kasan_kmalloc+0x9/0x10 [ 438.912967][ T2711] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 438.918514][ T2711] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 438.924663][ T2711] ? delete_node+0x759/0x7b0 [ 438.929247][ T2711] ? __kasan_check_read+0x11/0x20 [ 438.934259][ T2711] ? idr_replace+0x1c4/0x230 [ 438.938935][ T2711] ? idr_get_next+0x4b0/0x4b0 [ 438.943795][ T2711] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 438.948902][ T2711] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 438.954177][ T2711] css_populate_dir+0x137/0x370 [ 438.959273][ T2711] cgroup_apply_control_enable+0x8b9/0x12f0 [ 438.965236][ T2711] cgroup_apply_control+0x8e/0x7e0 [ 438.970346][ T2711] ? css_next_child+0x160/0x160 [ 438.975188][ T2711] ? stack_trace_save+0x12d/0x1f0 [ 438.980237][ T2711] ? io_schedule+0x120/0x120 [ 438.984848][ T2711] ? kernfs_fop_write_iter+0x15e/0x410 [ 438.990294][ T2711] ? __kasan_check_write+0x14/0x20 [ 438.995393][ T2711] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 439.000693][ T2711] cgroup_subtree_control_write+0xd19/0x1310 [ 439.006658][ T2711] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 439.012635][ T2711] ? __kasan_check_write+0x14/0x20 [ 439.017739][ T2711] ? _copy_from_iter+0x3fb/0xd60 [ 439.022680][ T2711] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 439.028666][ T2711] cgroup_file_write+0x28e/0x590 [ 439.033605][ T2711] ? cgroup_seqfile_stop+0xc0/0xc0 [ 439.038721][ T2711] ? mutex_trylock+0x180/0x180 [ 439.043474][ T2711] ? __kasan_check_write+0x14/0x20 [ 439.048911][ T2711] kernfs_fop_write_iter+0x2d0/0x410 [ 439.054310][ T2711] ? cgroup_seqfile_stop+0xc0/0xc0 [ 439.059425][ T2711] vfs_write+0xc4a/0xf80 [ 439.063673][ T2711] ? slab_free_freelist_hook+0xcc/0x1a0 [ 439.069296][ T2711] ? kernel_write+0x420/0x420 [ 439.073970][ T2711] ? do_sys_openat2+0x397/0x470 [ 439.078809][ T2711] ? __kasan_check_read+0x11/0x20 [ 439.083945][ T2711] ? __fdget_pos+0x27e/0x310 [ 439.088633][ T2711] ksys_write+0x198/0x2c0 [ 439.092950][ T2711] ? __ia32_sys_read+0x90/0x90 [ 439.097871][ T2711] ? debug_smp_processor_id+0x17/0x20 [ 439.103250][ T2711] __x64_sys_write+0x7b/0x90 [ 439.108321][ T2711] do_syscall_64+0x34/0x70 [ 439.112858][ T2711] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 439.118929][ T2711] RIP: 0033:0x7f48883727a9 [ 439.123344][ T2711] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 439.143477][ T2711] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 439.151880][ T2711] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 439.159839][ T2711] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 439.167802][ T2711] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 439.175866][ T2711] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 439.183832][ T2711] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000b [ 439.191910][ T2711] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 439.237085][ T2710] FAULT_INJECTION: forcing a failure. [ 439.237085][ T2710] name failslab, interval 1, probability 0, space 0, times 0 [ 439.249946][ T2710] CPU: 0 PID: 2710 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 439.260602][ T2710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 439.271302][ T2710] Call Trace: [ 439.274604][ T2710] dump_stack_lvl+0x1e2/0x24b [ 439.279391][ T2710] ? panic+0x7d7/0x7d7 [ 439.283453][ T2710] ? bfq_pos_tree_add_move+0x43e/0x43e [ 439.288898][ T2710] ? selinux_kernfs_init_security+0x1a8/0x760 [ 439.294962][ T2710] ? ___slab_alloc+0xa9/0x2e0 [ 439.299652][ T2710] dump_stack+0x15/0x17 [ 439.303904][ T2710] should_fail+0x3c0/0x510 [ 439.308308][ T2710] __should_failslab+0x9f/0xe0 [ 439.313188][ T2710] should_failslab+0x9/0x20 [ 439.317689][ T2710] kmem_cache_alloc+0x3f/0x300 [ 439.322454][ T2710] ? __kernfs_new_node+0xdb/0x6e0 [ 439.327635][ T2710] __kernfs_new_node+0xdb/0x6e0 [ 439.332479][ T2710] ? is_module_text_address+0xe1/0x140 [ 439.337920][ T2710] ? kernfs_new_node+0x170/0x170 [ 439.342849][ T2710] ? ptr_to_hashval+0x60/0x60 [ 439.347687][ T2710] ? arch_stack_walk+0xf8/0x140 [ 439.352606][ T2710] ? snprintf+0xd6/0x120 [ 439.356831][ T2710] kernfs_new_node+0x97/0x170 [ 439.361508][ T2710] __kernfs_create_file+0x4a/0x270 [ 439.366892][ T2710] cgroup_addrm_files+0xab8/0xfe0 [ 439.371912][ T2710] ? ____kasan_kmalloc+0xdc/0x110 [ 439.376933][ T2710] ? __kasan_kmalloc+0x9/0x10 [ 439.381874][ T2710] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 439.387775][ T2710] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 439.394004][ T2710] ? delete_node+0x759/0x7b0 [ 439.398598][ T2710] ? __kasan_check_read+0x11/0x20 [ 439.403621][ T2710] ? delete_node+0x759/0x7b0 [ 439.408223][ T2710] ? __kasan_check_write+0x14/0x20 [ 439.413380][ T2710] ? idr_replace+0x1c4/0x230 [ 439.417975][ T2710] ? idr_get_next+0x4b0/0x4b0 [ 439.422647][ T2710] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 439.427665][ T2710] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 439.433051][ T2710] css_populate_dir+0x137/0x370 [ 439.437910][ T2710] cgroup_apply_control_enable+0x8b9/0x12f0 [ 439.443820][ T2710] cgroup_apply_control+0x8e/0x7e0 [ 439.448917][ T2710] ? css_next_child+0x160/0x160 [ 439.454112][ T2710] ? stack_trace_save+0x12d/0x1f0 [ 439.459125][ T2710] ? io_schedule+0x120/0x120 [ 439.463785][ T2710] ? kernfs_fop_write_iter+0x15e/0x410 [ 439.469231][ T2710] ? __kasan_check_write+0x14/0x20 [ 439.474334][ T2710] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 439.479626][ T2710] cgroup_subtree_control_write+0xd19/0x1310 [ 439.485773][ T2710] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 439.492019][ T2710] ? __kasan_check_write+0x14/0x20 [ 439.497230][ T2710] ? _copy_from_iter+0x3fb/0xd60 [ 439.502271][ T2710] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 439.509030][ T2710] cgroup_file_write+0x28e/0x590 [ 439.514094][ T2710] ? cgroup_seqfile_stop+0xc0/0xc0 [ 439.519412][ T2710] ? mutex_trylock+0x180/0x180 [ 439.524208][ T2710] ? __kasan_check_write+0x14/0x20 [ 439.529320][ T2710] kernfs_fop_write_iter+0x2d0/0x410 [ 439.534622][ T2710] ? cgroup_seqfile_stop+0xc0/0xc0 [ 439.540004][ T2710] vfs_write+0xc4a/0xf80 [ 439.544358][ T2710] ? slab_free_freelist_hook+0xcc/0x1a0 [ 439.549992][ T2710] ? kernel_write+0x420/0x420 [ 439.555131][ T2710] ? do_sys_openat2+0x397/0x470 [ 439.559987][ T2710] ? __kasan_check_read+0x11/0x20 [ 439.565002][ T2710] ? __fdget_pos+0x27e/0x310 [ 439.569583][ T2710] ksys_write+0x198/0x2c0 [ 439.573911][ T2710] ? __ia32_sys_read+0x90/0x90 [ 439.578765][ T2710] ? debug_smp_processor_id+0x17/0x20 [ 439.584128][ T2710] __x64_sys_write+0x7b/0x90 [ 439.588726][ T2710] do_syscall_64+0x34/0x70 [ 439.593223][ T2710] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 439.599103][ T2710] RIP: 0033:0x7f48883727a9 [ 439.603501][ T2710] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 439.623277][ T2710] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 439.631676][ T2710] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 439.639718][ T2710] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 439.647768][ T2710] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 439.655740][ T2710] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 439.663725][ T2710] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000a [ 439.672191][ T2710] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 439.697279][ T2715] FAULT_INJECTION: forcing a failure. [ 439.697279][ T2715] name failslab, interval 1, probability 0, space 0, times 0 [ 439.710218][ T2715] CPU: 1 PID: 2715 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 439.720622][ T2715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 439.730666][ T2715] Call Trace: [ 439.733954][ T2715] dump_stack_lvl+0x1e2/0x24b [ 439.738613][ T2715] ? bfq_pos_tree_add_move+0x43e/0x43e [ 439.744157][ T2715] ? selinux_kernfs_init_security+0x1a8/0x760 [ 439.750232][ T2715] dump_stack+0x15/0x17 [ 439.754391][ T2715] should_fail+0x3c0/0x510 [ 439.759072][ T2715] ? __kernfs_new_node+0x99/0x6e0 [ 439.764178][ T2715] __should_failslab+0x9f/0xe0 [ 439.768944][ T2715] should_failslab+0x9/0x20 [ 439.773430][ T2715] __kmalloc_track_caller+0x5f/0x350 [ 439.779157][ T2715] kstrdup_const+0x55/0x90 [ 439.783756][ T2715] __kernfs_new_node+0x99/0x6e0 [ 439.788783][ T2715] ? is_module_text_address+0xe1/0x140 [ 439.794225][ T2715] ? kernfs_new_node+0x170/0x170 [ 439.799145][ T2715] ? ptr_to_hashval+0x60/0x60 [ 439.803898][ T2715] ? mutex_lock+0xb2/0x1e0 [ 439.808510][ T2715] ? snprintf+0xd6/0x120 [ 439.812817][ T2715] ? mutex_unlock+0x29/0xf0 [ 439.817299][ T2715] kernfs_new_node+0x97/0x170 [ 439.821957][ T2715] __kernfs_create_file+0x4a/0x270 [ 439.827223][ T2715] cgroup_addrm_files+0xab8/0xfe0 [ 439.832370][ T2715] ? ____kasan_kmalloc+0xdc/0x110 [ 439.837694][ T2715] ? __kasan_kmalloc+0x9/0x10 [ 439.842360][ T2715] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 439.848199][ T2715] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 439.854356][ T2715] ? delete_node+0x759/0x7b0 [ 439.859017][ T2715] ? __kasan_check_read+0x11/0x20 [ 439.864201][ T2715] ? idr_replace+0x1c4/0x230 [ 439.868830][ T2715] ? idr_get_next+0x4b0/0x4b0 [ 439.874031][ T2715] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 439.879242][ T2715] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 439.884436][ T2715] css_populate_dir+0x137/0x370 [ 439.889449][ T2715] cgroup_apply_control_enable+0x8b9/0x12f0 [ 439.895332][ T2715] cgroup_apply_control+0x8e/0x7e0 [ 439.900430][ T2715] ? css_next_child+0x160/0x160 [ 439.905276][ T2715] ? stack_trace_save+0x12d/0x1f0 [ 439.910301][ T2715] ? io_schedule+0x120/0x120 [ 439.914900][ T2715] ? kernfs_fop_write_iter+0x15e/0x410 [ 439.920359][ T2715] ? __kasan_check_write+0x14/0x20 [ 439.925462][ T2715] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 439.930732][ T2715] cgroup_subtree_control_write+0xd19/0x1310 [ 439.936716][ T2715] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 439.942704][ T2715] ? __kasan_check_write+0x14/0x20 [ 439.947823][ T2715] ? _copy_from_iter+0x3fb/0xd60 [ 439.952746][ T2715] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 439.958712][ T2715] cgroup_file_write+0x28e/0x590 [ 439.963668][ T2715] ? cgroup_seqfile_stop+0xc0/0xc0 [ 439.968831][ T2715] ? mutex_trylock+0x180/0x180 [ 439.973597][ T2715] ? __kasan_check_write+0x14/0x20 [ 439.978701][ T2715] kernfs_fop_write_iter+0x2d0/0x410 [ 439.984070][ T2715] ? cgroup_seqfile_stop+0xc0/0xc0 [ 439.989199][ T2715] vfs_write+0xc4a/0xf80 [ 439.993438][ T2715] ? slab_free_freelist_hook+0xcc/0x1a0 [ 439.999066][ T2715] ? kernel_write+0x420/0x420 [ 440.004180][ T2715] ? do_sys_openat2+0x397/0x470 [ 440.009190][ T2715] ? __kasan_check_read+0x11/0x20 [ 440.014202][ T2715] ? __fdget_pos+0x27e/0x310 [ 440.018778][ T2715] ksys_write+0x198/0x2c0 [ 440.023117][ T2715] ? __ia32_sys_read+0x90/0x90 [ 440.027862][ T2715] ? debug_smp_processor_id+0x17/0x20 [ 440.033474][ T2715] __x64_sys_write+0x7b/0x90 [ 440.038064][ T2715] do_syscall_64+0x34/0x70 [ 440.042621][ T2715] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 440.048503][ T2715] RIP: 0033:0x7f48883727a9 [ 440.053074][ T2715] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 440.072953][ T2715] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 440.081359][ T2715] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 440.089720][ T2715] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 440.098044][ T2715] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 440.106109][ T2715] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 440.114180][ T2715] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000b [ 440.122298][ T2715] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 440.157172][ T2712] FAULT_INJECTION: forcing a failure. [ 440.157172][ T2712] name failslab, interval 1, probability 0, space 0, times 0 [ 440.170132][ T2712] CPU: 1 PID: 2712 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 440.180740][ T2712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 440.190964][ T2712] Call Trace: [ 440.194513][ T2712] dump_stack_lvl+0x1e2/0x24b [ 440.199761][ T2712] ? bfq_pos_tree_add_move+0x43e/0x43e [ 440.205277][ T2712] ? selinux_kernfs_init_security+0x1a8/0x760 [ 440.211343][ T2712] dump_stack+0x15/0x17 [ 440.215496][ T2712] should_fail+0x3c0/0x510 [ 440.219896][ T2712] ? __kernfs_new_node+0x99/0x6e0 [ 440.224904][ T2712] __should_failslab+0x9f/0xe0 [ 440.229660][ T2712] should_failslab+0x9/0x20 [ 440.234244][ T2712] __kmalloc_track_caller+0x5f/0x350 [ 440.239525][ T2712] kstrdup_const+0x55/0x90 [ 440.243952][ T2712] __kernfs_new_node+0x99/0x6e0 [ 440.248901][ T2712] ? is_module_text_address+0xe1/0x140 [ 440.254554][ T2712] ? kernfs_new_node+0x170/0x170 [ 440.259598][ T2712] ? ptr_to_hashval+0x60/0x60 [ 440.264462][ T2712] ? mutex_lock+0xb2/0x1e0 [ 440.268868][ T2712] ? snprintf+0xd6/0x120 [ 440.273200][ T2712] ? mutex_unlock+0x29/0xf0 [ 440.277707][ T2712] kernfs_new_node+0x97/0x170 [ 440.282512][ T2712] __kernfs_create_file+0x4a/0x270 [ 440.287726][ T2712] cgroup_addrm_files+0xab8/0xfe0 [ 440.292774][ T2712] ? ____kasan_kmalloc+0xdc/0x110 [ 440.297882][ T2712] ? __kasan_kmalloc+0x9/0x10 [ 440.302733][ T2712] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 440.308672][ T2712] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 440.315339][ T2712] ? delete_node+0x759/0x7b0 [ 440.320001][ T2712] ? __kasan_check_read+0x11/0x20 [ 440.325296][ T2712] ? idr_replace+0x1c4/0x230 [ 440.329892][ T2712] ? idr_get_next+0x4b0/0x4b0 [ 440.334558][ T2712] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 440.339665][ T2712] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 440.344865][ T2712] css_populate_dir+0x137/0x370 [ 440.349783][ T2712] cgroup_apply_control_enable+0x8b9/0x12f0 [ 440.355774][ T2712] cgroup_apply_control+0x8e/0x7e0 [ 440.360991][ T2712] ? css_next_child+0x160/0x160 [ 440.366191][ T2712] ? stack_trace_save+0x12d/0x1f0 [ 440.371209][ T2712] ? io_schedule+0x120/0x120 [ 440.375966][ T2712] ? kernfs_fop_write_iter+0x15e/0x410 [ 440.381414][ T2712] ? __kasan_check_write+0x14/0x20 [ 440.386525][ T2712] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 440.391902][ T2712] cgroup_subtree_control_write+0xd19/0x1310 [ 440.397961][ T2712] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 440.404054][ T2712] ? __kasan_check_write+0x14/0x20 [ 440.409241][ T2712] ? _copy_from_iter+0x3fb/0xd60 [ 440.414338][ T2712] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 440.420316][ T2712] cgroup_file_write+0x28e/0x590 [ 440.425270][ T2712] ? cgroup_seqfile_stop+0xc0/0xc0 [ 440.430467][ T2712] ? mutex_trylock+0x180/0x180 [ 440.435222][ T2712] ? __kasan_check_write+0x14/0x20 [ 440.440958][ T2712] kernfs_fop_write_iter+0x2d0/0x410 [ 440.446433][ T2712] ? cgroup_seqfile_stop+0xc0/0xc0 [ 440.451538][ T2712] vfs_write+0xc4a/0xf80 [ 440.456021][ T2712] ? slab_free_freelist_hook+0xcc/0x1a0 [ 440.461648][ T2712] ? kernel_write+0x420/0x420 [ 440.466327][ T2712] ? do_sys_openat2+0x397/0x470 [ 440.471176][ T2712] ? __kasan_check_read+0x11/0x20 [ 440.476249][ T2712] ? __fdget_pos+0x27e/0x310 [ 440.481546][ T2712] ksys_write+0x198/0x2c0 [ 440.486162][ T2712] ? __ia32_sys_read+0x90/0x90 [ 440.491173][ T2712] ? debug_smp_processor_id+0x17/0x20 [ 440.496615][ T2712] __x64_sys_write+0x7b/0x90 [ 440.501274][ T2712] do_syscall_64+0x34/0x70 [ 440.506129][ T2712] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 440.512089][ T2712] RIP: 0033:0x7f48883727a9 [ 440.516540][ T2712] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 440.536326][ T2712] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 440.544830][ T2712] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 440.553436][ T2712] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 440.561512][ T2712] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 440.569571][ T2712] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 440.578026][ T2712] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000010 [ 440.586343][ T2712] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 440.617050][ T2714] FAULT_INJECTION: forcing a failure. [ 440.617050][ T2714] name failslab, interval 1, probability 0, space 0, times 0 [ 440.629850][ T2714] CPU: 1 PID: 2714 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 440.640254][ T2714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 440.650380][ T2714] Call Trace: [ 440.653661][ T2714] dump_stack_lvl+0x1e2/0x24b [ 440.658326][ T2714] ? bfq_pos_tree_add_move+0x43e/0x43e [ 440.663778][ T2714] ? selinux_kernfs_init_security+0x1a8/0x760 [ 440.669838][ T2714] dump_stack+0x15/0x17 [ 440.674013][ T2714] should_fail+0x3c0/0x510 [ 440.678534][ T2714] ? __kernfs_new_node+0x99/0x6e0 [ 440.683656][ T2714] __should_failslab+0x9f/0xe0 [ 440.688494][ T2714] should_failslab+0x9/0x20 [ 440.693020][ T2714] __kmalloc_track_caller+0x5f/0x350 [ 440.698378][ T2714] kstrdup_const+0x55/0x90 [ 440.702982][ T2714] __kernfs_new_node+0x99/0x6e0 [ 440.707947][ T2714] ? is_module_text_address+0xe1/0x140 [ 440.713689][ T2714] ? kernfs_new_node+0x170/0x170 [ 440.718613][ T2714] ? ptr_to_hashval+0x60/0x60 [ 440.723271][ T2714] ? mutex_lock+0xb2/0x1e0 [ 440.727776][ T2714] ? snprintf+0xd6/0x120 [ 440.732016][ T2714] ? mutex_unlock+0x29/0xf0 [ 440.736500][ T2714] kernfs_new_node+0x97/0x170 [ 440.741156][ T2714] __kernfs_create_file+0x4a/0x270 [ 440.746249][ T2714] cgroup_addrm_files+0xab8/0xfe0 [ 440.751345][ T2714] ? ____kasan_kmalloc+0xdc/0x110 [ 440.756475][ T2714] ? __kasan_kmalloc+0x9/0x10 [ 440.761156][ T2714] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 440.766699][ T2714] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 440.772844][ T2714] ? delete_node+0x759/0x7b0 [ 440.777596][ T2714] ? __kasan_check_read+0x11/0x20 [ 440.782816][ T2714] ? idr_replace+0x1c4/0x230 [ 440.787718][ T2714] ? idr_get_next+0x4b0/0x4b0 [ 440.792401][ T2714] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 440.797587][ T2714] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 440.802769][ T2714] css_populate_dir+0x137/0x370 [ 440.807694][ T2714] cgroup_apply_control_enable+0x8b9/0x12f0 [ 440.813596][ T2714] cgroup_apply_control+0x8e/0x7e0 [ 440.818708][ T2714] ? css_next_child+0x160/0x160 [ 440.823590][ T2714] ? stack_trace_save+0x12d/0x1f0 [ 440.828719][ T2714] ? io_schedule+0x120/0x120 [ 440.833428][ T2714] ? kernfs_fop_write_iter+0x15e/0x410 [ 440.839048][ T2714] ? __kasan_check_write+0x14/0x20 [ 440.844155][ T2714] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 440.849428][ T2714] cgroup_subtree_control_write+0xd19/0x1310 [ 440.855411][ T2714] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 440.861518][ T2714] ? __kasan_check_write+0x14/0x20 [ 440.866863][ T2714] ? _copy_from_iter+0x3fb/0xd60 [ 440.871894][ T2714] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 440.877865][ T2714] cgroup_file_write+0x28e/0x590 [ 440.882790][ T2714] ? cgroup_seqfile_stop+0xc0/0xc0 [ 440.887909][ T2714] ? mutex_trylock+0x180/0x180 [ 440.892666][ T2714] ? __kasan_check_write+0x14/0x20 [ 440.897790][ T2714] kernfs_fop_write_iter+0x2d0/0x410 [ 440.903061][ T2714] ? cgroup_seqfile_stop+0xc0/0xc0 [ 440.908259][ T2714] vfs_write+0xc4a/0xf80 [ 440.912504][ T2714] ? sched_clock+0x3a/0x40 [ 440.916934][ T2714] ? kernel_write+0x420/0x420 [ 440.921606][ T2714] ? __irq_exit_rcu+0x41/0x150 [ 440.926479][ T2714] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 440.932743][ T2714] ? __kasan_check_read+0x11/0x20 [ 440.937765][ T2714] ? __fdget_pos+0x27e/0x310 [ 440.942344][ T2714] ksys_write+0x198/0x2c0 [ 440.946673][ T2714] ? __ia32_sys_read+0x90/0x90 [ 440.951427][ T2714] ? debug_smp_processor_id+0x17/0x20 [ 440.956797][ T2714] __x64_sys_write+0x7b/0x90 [ 440.961420][ T2714] do_syscall_64+0x34/0x70 [ 440.965909][ T2714] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 440.971900][ T2714] RIP: 0033:0x7f48883727a9 [ 440.976299][ T2714] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 440.996118][ T2714] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 441.004660][ T2714] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 441.012745][ T2714] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 441.020819][ T2714] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 441.028795][ T2714] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 441.036877][ T2714] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000c [ 441.045123][ T2714] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 441.057845][ T2718] FAULT_INJECTION: forcing a failure. [ 441.057845][ T2718] name failslab, interval 1, probability 0, space 0, times 0 [ 441.070727][ T2718] CPU: 1 PID: 2718 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 441.081130][ T2718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 441.091195][ T2718] Call Trace: [ 441.094499][ T2718] dump_stack_lvl+0x1e2/0x24b [ 441.099170][ T2718] ? panic+0x7d7/0x7d7 [ 441.103234][ T2718] ? bfq_pos_tree_add_move+0x43e/0x43e [ 441.108708][ T2718] ? selinux_kernfs_init_security+0x1a8/0x760 [ 441.115160][ T2718] dump_stack+0x15/0x17 [ 441.119309][ T2718] should_fail+0x3c0/0x510 [ 441.123840][ T2718] __should_failslab+0x9f/0xe0 [ 441.128706][ T2718] should_failslab+0x9/0x20 [ 441.133226][ T2718] kmem_cache_alloc+0x3f/0x300 [ 441.138159][ T2718] ? __kernfs_new_node+0xdb/0x6e0 [ 441.143172][ T2718] __kernfs_new_node+0xdb/0x6e0 [ 441.148095][ T2718] ? is_module_text_address+0xe1/0x140 [ 441.153666][ T2718] ? kernfs_new_node+0x170/0x170 [ 441.158694][ T2718] ? ptr_to_hashval+0x60/0x60 [ 441.163494][ T2718] ? arch_stack_walk+0xf8/0x140 [ 441.168354][ T2718] ? snprintf+0xd6/0x120 [ 441.172612][ T2718] kernfs_new_node+0x97/0x170 [ 441.177299][ T2718] __kernfs_create_file+0x4a/0x270 [ 441.182427][ T2718] cgroup_addrm_files+0xab8/0xfe0 [ 441.187479][ T2718] ? ____kasan_kmalloc+0xdc/0x110 [ 441.192510][ T2718] ? __kasan_kmalloc+0x9/0x10 [ 441.197263][ T2718] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 441.202798][ T2718] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 441.208953][ T2718] ? delete_node+0x759/0x7b0 [ 441.213527][ T2718] ? __kasan_check_read+0x11/0x20 [ 441.218537][ T2718] ? delete_node+0x759/0x7b0 [ 441.223282][ T2718] ? __kasan_check_write+0x14/0x20 [ 441.228377][ T2718] ? idr_replace+0x1c4/0x230 [ 441.232954][ T2718] ? idr_get_next+0x4b0/0x4b0 [ 441.237707][ T2718] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 441.242796][ T2718] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 441.248090][ T2718] css_populate_dir+0x137/0x370 [ 441.252940][ T2718] cgroup_apply_control_enable+0x8b9/0x12f0 [ 441.259038][ T2718] cgroup_apply_control+0x8e/0x7e0 [ 441.264496][ T2718] ? css_next_child+0x160/0x160 [ 441.269334][ T2718] ? stack_trace_save+0x12d/0x1f0 [ 441.274356][ T2718] ? io_schedule+0x120/0x120 [ 441.278966][ T2718] ? kernfs_fop_write_iter+0x15e/0x410 [ 441.284413][ T2718] ? __kasan_check_write+0x14/0x20 [ 441.289642][ T2718] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 441.294930][ T2718] cgroup_subtree_control_write+0xd19/0x1310 [ 441.301028][ T2718] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 441.307267][ T2718] ? __kasan_check_write+0x14/0x20 [ 441.312369][ T2718] ? _copy_from_iter+0x3fb/0xd60 [ 441.317744][ T2718] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 441.324330][ T2718] cgroup_file_write+0x28e/0x590 [ 441.329376][ T2718] ? cgroup_seqfile_stop+0xc0/0xc0 [ 441.335355][ T2718] ? mutex_trylock+0x180/0x180 [ 441.340134][ T2718] ? __kasan_check_write+0x14/0x20 [ 441.345555][ T2718] kernfs_fop_write_iter+0x2d0/0x410 [ 441.350883][ T2718] ? cgroup_seqfile_stop+0xc0/0xc0 [ 441.356130][ T2718] vfs_write+0xc4a/0xf80 [ 441.360667][ T2718] ? slab_free_freelist_hook+0xcc/0x1a0 [ 441.366208][ T2718] ? kernel_write+0x420/0x420 [ 441.370880][ T2718] ? do_sys_openat2+0x397/0x470 [ 441.375737][ T2718] ? __kasan_check_read+0x11/0x20 [ 441.381492][ T2718] ? __fdget_pos+0x27e/0x310 [ 441.386600][ T2718] ksys_write+0x198/0x2c0 [ 441.390942][ T2718] ? __ia32_sys_read+0x90/0x90 [ 441.395724][ T2718] ? debug_smp_processor_id+0x17/0x20 [ 441.401533][ T2718] __x64_sys_write+0x7b/0x90 [ 441.406142][ T2718] do_syscall_64+0x34/0x70 [ 441.410684][ T2718] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 441.416824][ T2718] RIP: 0033:0x7f48883727a9 [ 441.421756][ T2718] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 441.442386][ T2718] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 441.450894][ T2718] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 441.458934][ T2718] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 441.466889][ T2718] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 441.474869][ T2718] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 441.482914][ T2718] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000d [ 441.491209][ T2718] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 441.537470][ T2716] FAULT_INJECTION: forcing a failure. [ 441.537470][ T2716] name failslab, interval 1, probability 0, space 0, times 0 [ 441.550381][ T2716] CPU: 1 PID: 2716 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 441.560789][ T2716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 441.570880][ T2716] Call Trace: [ 441.574426][ T2716] dump_stack_lvl+0x1e2/0x24b [ 441.579088][ T2716] ? bfq_pos_tree_add_move+0x43e/0x43e [ 441.584535][ T2716] ? selinux_kernfs_init_security+0x1a8/0x760 [ 441.590596][ T2716] dump_stack+0x15/0x17 [ 441.594846][ T2716] should_fail+0x3c0/0x510 [ 441.599252][ T2716] ? __kernfs_new_node+0x99/0x6e0 [ 441.604276][ T2716] __should_failslab+0x9f/0xe0 [ 441.609031][ T2716] should_failslab+0x9/0x20 [ 441.613525][ T2716] __kmalloc_track_caller+0x5f/0x350 [ 441.618966][ T2716] kstrdup_const+0x55/0x90 [ 441.623486][ T2716] __kernfs_new_node+0x99/0x6e0 [ 441.628878][ T2716] ? is_module_text_address+0xe1/0x140 [ 441.635034][ T2716] ? kernfs_new_node+0x170/0x170 [ 441.640518][ T2716] ? ptr_to_hashval+0x60/0x60 [ 441.645388][ T2716] ? mutex_lock+0xb2/0x1e0 [ 441.649842][ T2716] ? snprintf+0xd6/0x120 [ 441.654405][ T2716] ? mutex_unlock+0x29/0xf0 [ 441.658909][ T2716] kernfs_new_node+0x97/0x170 [ 441.663853][ T2716] __kernfs_create_file+0x4a/0x270 [ 441.668973][ T2716] cgroup_addrm_files+0xab8/0xfe0 [ 441.674738][ T2716] ? ____kasan_kmalloc+0xdc/0x110 [ 441.679761][ T2716] ? __kasan_kmalloc+0x9/0x10 [ 441.684804][ T2716] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 441.690494][ T2716] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 441.696732][ T2716] ? delete_node+0x759/0x7b0 [ 441.701313][ T2716] ? __kasan_check_read+0x11/0x20 [ 441.706522][ T2716] ? idr_replace+0x1c4/0x230 [ 441.711205][ T2716] ? idr_get_next+0x4b0/0x4b0 [ 441.716010][ T2716] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 441.721364][ T2716] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 441.726564][ T2716] css_populate_dir+0x137/0x370 [ 441.731410][ T2716] cgroup_apply_control_enable+0x8b9/0x12f0 [ 441.737376][ T2716] cgroup_apply_control+0x8e/0x7e0 [ 441.742472][ T2716] ? css_next_child+0x160/0x160 [ 441.747309][ T2716] ? stack_trace_save+0x12d/0x1f0 [ 441.752334][ T2716] ? io_schedule+0x120/0x120 [ 441.756910][ T2716] ? kernfs_fop_write_iter+0x15e/0x410 [ 441.762554][ T2716] ? __kasan_check_write+0x14/0x20 [ 441.767736][ T2716] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 441.773008][ T2716] cgroup_subtree_control_write+0xd19/0x1310 [ 441.779018][ T2716] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 441.784991][ T2716] ? __kasan_check_write+0x14/0x20 [ 441.790099][ T2716] ? _copy_from_iter+0x3fb/0xd60 [ 441.795038][ T2716] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 441.801004][ T2716] cgroup_file_write+0x28e/0x590 [ 441.806023][ T2716] ? cgroup_seqfile_stop+0xc0/0xc0 [ 441.811126][ T2716] ? mutex_trylock+0x180/0x180 [ 441.816131][ T2716] ? __kasan_check_write+0x14/0x20 [ 441.821306][ T2716] kernfs_fop_write_iter+0x2d0/0x410 [ 441.826590][ T2716] ? cgroup_seqfile_stop+0xc0/0xc0 [ 441.831863][ T2716] vfs_write+0xc4a/0xf80 [ 441.836127][ T2716] ? slab_free_freelist_hook+0xcc/0x1a0 [ 441.841925][ T2716] ? kernel_write+0x420/0x420 [ 441.846622][ T2716] ? do_sys_openat2+0x397/0x470 [ 441.851570][ T2716] ? __kasan_check_read+0x11/0x20 [ 441.856639][ T2716] ? __fdget_pos+0x27e/0x310 [ 441.861213][ T2716] ksys_write+0x198/0x2c0 [ 441.865527][ T2716] ? __ia32_sys_read+0x90/0x90 [ 441.870272][ T2716] ? debug_smp_processor_id+0x17/0x20 [ 441.875641][ T2716] __x64_sys_write+0x7b/0x90 [ 441.880232][ T2716] do_syscall_64+0x34/0x70 [ 441.884640][ T2716] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 441.890790][ T2716] RIP: 0033:0x7f48883727a9 [ 441.895199][ T2716] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 441.914792][ T2716] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 441.923295][ T2716] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 441.931257][ T2716] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 441.939329][ T2716] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 441.947525][ T2716] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 441.955514][ T2716] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000c [ 441.964075][ T2716] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 442.007085][ T2717] FAULT_INJECTION: forcing a failure. [ 442.007085][ T2717] name failslab, interval 1, probability 0, space 0, times 0 [ 442.020729][ T2717] CPU: 1 PID: 2717 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 442.031580][ T2717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 442.042331][ T2717] Call Trace: [ 442.045660][ T2717] dump_stack_lvl+0x1e2/0x24b [ 442.050340][ T2717] ? panic+0x7d7/0x7d7 [ 442.054633][ T2717] ? bfq_pos_tree_add_move+0x43e/0x43e [ 442.060166][ T2717] ? selinux_kernfs_init_security+0x1a8/0x760 [ 442.066232][ T2717] dump_stack+0x15/0x17 [ 442.070632][ T2717] should_fail+0x3c0/0x510 [ 442.075074][ T2717] __should_failslab+0x9f/0xe0 [ 442.079913][ T2717] should_failslab+0x9/0x20 [ 442.084426][ T2717] kmem_cache_alloc+0x3f/0x300 [ 442.089207][ T2717] ? __kernfs_new_node+0xdb/0x6e0 [ 442.094216][ T2717] __kernfs_new_node+0xdb/0x6e0 [ 442.099054][ T2717] ? is_module_text_address+0xe1/0x140 [ 442.104517][ T2717] ? kernfs_new_node+0x170/0x170 [ 442.109461][ T2717] ? ptr_to_hashval+0x60/0x60 [ 442.114131][ T2717] ? arch_stack_walk+0xf8/0x140 [ 442.118993][ T2717] ? snprintf+0xd6/0x120 [ 442.123698][ T2717] kernfs_new_node+0x97/0x170 [ 442.128463][ T2717] __kernfs_create_file+0x4a/0x270 [ 442.134049][ T2717] cgroup_addrm_files+0xab8/0xfe0 [ 442.139261][ T2717] ? ____kasan_kmalloc+0xdc/0x110 [ 442.144304][ T2717] ? __kasan_kmalloc+0x9/0x10 [ 442.149443][ T2717] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 442.155545][ T2717] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 442.161929][ T2717] ? delete_node+0x759/0x7b0 [ 442.166780][ T2717] ? __kasan_check_read+0x11/0x20 [ 442.171969][ T2717] ? delete_node+0x759/0x7b0 [ 442.176852][ T2717] ? __kasan_check_write+0x14/0x20 [ 442.182417][ T2717] ? idr_replace+0x1c4/0x230 [ 442.186997][ T2717] ? idr_get_next+0x4b0/0x4b0 [ 442.191861][ T2717] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 442.197021][ T2717] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 442.203017][ T2717] css_populate_dir+0x137/0x370 [ 442.207952][ T2717] cgroup_apply_control_enable+0x8b9/0x12f0 [ 442.213879][ T2717] cgroup_apply_control+0x8e/0x7e0 [ 442.218987][ T2717] ? css_next_child+0x160/0x160 [ 442.223873][ T2717] ? stack_trace_save+0x12d/0x1f0 [ 442.228893][ T2717] ? io_schedule+0x120/0x120 [ 442.233494][ T2717] ? kernfs_fop_write_iter+0x15e/0x410 [ 442.238978][ T2717] ? __kasan_check_write+0x14/0x20 [ 442.244093][ T2717] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 442.249539][ T2717] cgroup_subtree_control_write+0xd19/0x1310 [ 442.255700][ T2717] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 442.261663][ T2717] ? __kasan_check_write+0x14/0x20 [ 442.266856][ T2717] ? _copy_from_iter+0x3fb/0xd60 [ 442.271893][ T2717] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 442.277955][ T2717] cgroup_file_write+0x28e/0x590 [ 442.282881][ T2717] ? cgroup_seqfile_stop+0xc0/0xc0 [ 442.287976][ T2717] ? mutex_trylock+0x180/0x180 [ 442.292815][ T2717] ? __kasan_check_write+0x14/0x20 [ 442.297913][ T2717] kernfs_fop_write_iter+0x2d0/0x410 [ 442.307935][ T2717] ? cgroup_seqfile_stop+0xc0/0xc0 [ 442.313430][ T2717] vfs_write+0xc4a/0xf80 [ 442.317777][ T2717] ? slab_free_freelist_hook+0xcc/0x1a0 [ 442.323694][ T2717] ? kernel_write+0x420/0x420 [ 442.328457][ T2717] ? do_sys_openat2+0x397/0x470 [ 442.333302][ T2717] ? __kasan_check_read+0x11/0x20 [ 442.338867][ T2717] ? __fdget_pos+0x27e/0x310 [ 442.343486][ T2717] ksys_write+0x198/0x2c0 [ 442.348010][ T2717] ? __ia32_sys_read+0x90/0x90 [ 442.352933][ T2717] ? debug_smp_processor_id+0x17/0x20 [ 442.358305][ T2717] __x64_sys_write+0x7b/0x90 [ 442.362887][ T2717] do_syscall_64+0x34/0x70 [ 442.367390][ T2717] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 442.373269][ T2717] RIP: 0033:0x7f48883727a9 [ 442.377755][ T2717] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 442.397801][ T2717] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 442.406212][ T2717] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 442.414176][ T2717] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 442.422154][ T2717] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 442.430221][ T2717] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 442.438462][ T2717] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000011 [ 442.446810][ T2717] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 442.497212][ T2719] FAULT_INJECTION: forcing a failure. [ 442.497212][ T2719] name failslab, interval 1, probability 0, space 0, times 0 [ 442.510410][ T2719] CPU: 1 PID: 2719 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 442.521358][ T2719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 442.531695][ T2719] Call Trace: [ 442.534994][ T2719] dump_stack_lvl+0x1e2/0x24b [ 442.539822][ T2719] ? bfq_pos_tree_add_move+0x43e/0x43e [ 442.545297][ T2719] ? selinux_kernfs_init_security+0x1a8/0x760 [ 442.551367][ T2719] dump_stack+0x15/0x17 [ 442.555526][ T2719] should_fail+0x3c0/0x510 [ 442.560142][ T2719] ? __kernfs_new_node+0x99/0x6e0 [ 442.565163][ T2719] __should_failslab+0x9f/0xe0 [ 442.569921][ T2719] should_failslab+0x9/0x20 [ 442.574426][ T2719] __kmalloc_track_caller+0x5f/0x350 [ 442.580139][ T2719] kstrdup_const+0x55/0x90 [ 442.584634][ T2719] __kernfs_new_node+0x99/0x6e0 [ 442.589473][ T2719] ? is_module_text_address+0xe1/0x140 [ 442.595098][ T2719] ? kernfs_new_node+0x170/0x170 [ 442.600031][ T2719] ? ptr_to_hashval+0x60/0x60 [ 442.604877][ T2719] ? mutex_lock+0xb2/0x1e0 [ 442.609336][ T2719] ? snprintf+0xd6/0x120 [ 442.613636][ T2719] ? mutex_unlock+0x29/0xf0 [ 442.618132][ T2719] kernfs_new_node+0x97/0x170 [ 442.622994][ T2719] __kernfs_create_file+0x4a/0x270 [ 442.628253][ T2719] cgroup_addrm_files+0xab8/0xfe0 [ 442.633265][ T2719] ? ____kasan_kmalloc+0xdc/0x110 [ 442.638274][ T2719] ? __kasan_kmalloc+0x9/0x10 [ 442.642939][ T2719] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 442.648646][ T2719] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 442.654908][ T2719] ? delete_node+0x759/0x7b0 [ 442.659485][ T2719] ? __kasan_check_read+0x11/0x20 [ 442.664686][ T2719] ? idr_replace+0x1c4/0x230 [ 442.669281][ T2719] ? idr_get_next+0x4b0/0x4b0 [ 442.673955][ T2719] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 442.679105][ T2719] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 442.684633][ T2719] css_populate_dir+0x137/0x370 [ 442.689534][ T2719] cgroup_apply_control_enable+0x8b9/0x12f0 [ 442.695426][ T2719] cgroup_apply_control+0x8e/0x7e0 [ 442.700547][ T2719] ? css_next_child+0x160/0x160 [ 442.705386][ T2719] ? stack_trace_save+0x12d/0x1f0 [ 442.710492][ T2719] ? io_schedule+0x120/0x120 [ 442.715070][ T2719] ? kernfs_fop_write_iter+0x15e/0x410 [ 442.720513][ T2719] ? __kasan_check_write+0x14/0x20 [ 442.725611][ T2719] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 442.730879][ T2719] cgroup_subtree_control_write+0xd19/0x1310 [ 442.736869][ T2719] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 442.742921][ T2719] ? __kasan_check_write+0x14/0x20 [ 442.748123][ T2719] ? _copy_from_iter+0x3fb/0xd60 [ 442.753084][ T2719] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 442.759057][ T2719] cgroup_file_write+0x28e/0x590 [ 442.763985][ T2719] ? cgroup_seqfile_stop+0xc0/0xc0 [ 442.769096][ T2719] ? mutex_trylock+0x180/0x180 [ 442.774027][ T2719] ? __kasan_check_write+0x14/0x20 [ 442.779120][ T2719] kernfs_fop_write_iter+0x2d0/0x410 [ 442.784387][ T2719] ? cgroup_seqfile_stop+0xc0/0xc0 [ 442.789479][ T2719] vfs_write+0xc4a/0xf80 [ 442.793699][ T2719] ? slab_free_freelist_hook+0xcc/0x1a0 [ 442.799228][ T2719] ? kernel_write+0x420/0x420 [ 442.803913][ T2719] ? do_sys_openat2+0x397/0x470 [ 442.808772][ T2719] ? __kasan_check_read+0x11/0x20 [ 442.813899][ T2719] ? __fdget_pos+0x27e/0x310 [ 442.818479][ T2719] ksys_write+0x198/0x2c0 [ 442.822819][ T2719] ? __ia32_sys_read+0x90/0x90 [ 442.827567][ T2719] ? debug_smp_processor_id+0x17/0x20 [ 442.833014][ T2719] __x64_sys_write+0x7b/0x90 [ 442.837587][ T2719] do_syscall_64+0x34/0x70 [ 442.841987][ T2719] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 442.847858][ T2719] RIP: 0033:0x7f48883727a9 [ 442.852344][ T2719] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 442.872028][ T2719] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 442.880428][ T2719] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 442.888387][ T2719] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 442.896520][ T2719] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 442.904477][ T2719] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 442.912433][ T2719] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000e [ 442.920505][ T2719] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 442.958145][ T2723] FAULT_INJECTION: forcing a failure. [ 442.958145][ T2723] name failslab, interval 1, probability 0, space 0, times 0 [ 442.970925][ T2723] CPU: 1 PID: 2723 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 442.981354][ T2723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 442.991929][ T2723] Call Trace: [ 442.995315][ T2723] dump_stack_lvl+0x1e2/0x24b [ 442.999969][ T2723] ? panic+0x7d7/0x7d7 [ 443.004101][ T2723] ? bfq_pos_tree_add_move+0x43e/0x43e [ 443.009533][ T2723] ? selinux_kernfs_init_security+0x1a8/0x760 [ 443.015707][ T2723] dump_stack+0x15/0x17 [ 443.019861][ T2723] should_fail+0x3c0/0x510 [ 443.024256][ T2723] __should_failslab+0x9f/0xe0 [ 443.029006][ T2723] should_failslab+0x9/0x20 [ 443.033488][ T2723] kmem_cache_alloc+0x3f/0x300 [ 443.038835][ T2723] ? __kernfs_new_node+0xdb/0x6e0 [ 443.045060][ T2723] __kernfs_new_node+0xdb/0x6e0 [ 443.049887][ T2723] ? is_module_text_address+0xe1/0x140 [ 443.055322][ T2723] ? kernfs_new_node+0x170/0x170 [ 443.060408][ T2723] ? ptr_to_hashval+0x60/0x60 [ 443.065056][ T2723] ? arch_stack_walk+0xf8/0x140 [ 443.069891][ T2723] ? snprintf+0xd6/0x120 [ 443.074110][ T2723] kernfs_new_node+0x97/0x170 [ 443.078760][ T2723] __kernfs_create_file+0x4a/0x270 [ 443.083850][ T2723] cgroup_addrm_files+0xab8/0xfe0 [ 443.088849][ T2723] ? ____kasan_kmalloc+0xdc/0x110 [ 443.093851][ T2723] ? __kasan_kmalloc+0x9/0x10 [ 443.098516][ T2723] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 443.104387][ T2723] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 443.110778][ T2723] ? delete_node+0x759/0x7b0 [ 443.115345][ T2723] ? __kasan_check_read+0x11/0x20 [ 443.120527][ T2723] ? delete_node+0x759/0x7b0 [ 443.125104][ T2723] ? __kasan_check_write+0x14/0x20 [ 443.130195][ T2723] ? idr_replace+0x1c4/0x230 [ 443.134778][ T2723] ? idr_get_next+0x4b0/0x4b0 [ 443.139517][ T2723] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 443.144609][ T2723] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 443.149871][ T2723] css_populate_dir+0x137/0x370 [ 443.154875][ T2723] cgroup_apply_control_enable+0x8b9/0x12f0 [ 443.160798][ T2723] cgroup_apply_control+0x8e/0x7e0 [ 443.165887][ T2723] ? css_next_child+0x160/0x160 [ 443.170724][ T2723] ? stack_trace_save+0x12d/0x1f0 [ 443.175839][ T2723] ? io_schedule+0x120/0x120 [ 443.180406][ T2723] ? kernfs_fop_write_iter+0x15e/0x410 [ 443.185968][ T2723] ? __kasan_check_write+0x14/0x20 [ 443.191627][ T2723] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 443.196906][ T2723] cgroup_subtree_control_write+0xd19/0x1310 [ 443.202886][ T2723] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 443.208858][ T2723] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 443.215161][ T2723] cgroup_file_write+0x28e/0x590 [ 443.220093][ T2723] ? cgroup_seqfile_stop+0xc0/0xc0 [ 443.225226][ T2723] ? mutex_trylock+0x180/0x180 [ 443.230009][ T2723] ? __kasan_check_write+0x14/0x20 [ 443.235245][ T2723] kernfs_fop_write_iter+0x2d0/0x410 [ 443.241230][ T2723] ? cgroup_seqfile_stop+0xc0/0xc0 [ 443.246326][ T2723] vfs_write+0xc4a/0xf80 [ 443.250547][ T2723] ? slab_free_freelist_hook+0xcc/0x1a0 [ 443.256088][ T2723] ? kernel_write+0x420/0x420 [ 443.260872][ T2723] ? do_sys_openat2+0x397/0x470 [ 443.265787][ T2723] ? __kasan_check_read+0x11/0x20 [ 443.270904][ T2723] ? __fdget_pos+0x27e/0x310 [ 443.275560][ T2723] ksys_write+0x198/0x2c0 [ 443.279961][ T2723] ? __ia32_sys_read+0x90/0x90 [ 443.284816][ T2723] ? debug_smp_processor_id+0x17/0x20 [ 443.290163][ T2723] __x64_sys_write+0x7b/0x90 [ 443.294908][ T2723] do_syscall_64+0x34/0x70 [ 443.299354][ T2723] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 443.305226][ T2723] RIP: 0033:0x7f48883727a9 [ 443.309647][ T2723] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 443.329412][ T2723] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 443.337891][ T2723] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 443.345940][ T2723] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 443.354942][ T2723] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 443.363000][ T2723] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 443.370955][ T2723] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000f [ 443.380956][ T2723] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 443.417457][ T2722] FAULT_INJECTION: forcing a failure. [ 443.417457][ T2722] name failslab, interval 1, probability 0, space 0, times 0 [ 443.430131][ T2722] CPU: 0 PID: 2722 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 443.440524][ T2722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 443.450597][ T2722] Call Trace: [ 443.453885][ T2722] dump_stack_lvl+0x1e2/0x24b [ 443.458670][ T2722] ? bfq_pos_tree_add_move+0x43e/0x43e [ 443.464350][ T2722] ? selinux_kernfs_init_security+0x1a8/0x760 [ 443.470437][ T2722] dump_stack+0x15/0x17 [ 443.474650][ T2722] should_fail+0x3c0/0x510 [ 443.479141][ T2722] ? __kernfs_new_node+0x99/0x6e0 [ 443.484260][ T2722] __should_failslab+0x9f/0xe0 [ 443.489118][ T2722] should_failslab+0x9/0x20 [ 443.493624][ T2722] __kmalloc_track_caller+0x5f/0x350 [ 443.498933][ T2722] kstrdup_const+0x55/0x90 [ 443.503343][ T2722] __kernfs_new_node+0x99/0x6e0 [ 443.508365][ T2722] ? is_module_text_address+0xe1/0x140 [ 443.513836][ T2722] ? kernfs_new_node+0x170/0x170 [ 443.518758][ T2722] ? ptr_to_hashval+0x60/0x60 [ 443.523486][ T2722] ? mutex_lock+0xb2/0x1e0 [ 443.528050][ T2722] ? snprintf+0xd6/0x120 [ 443.532321][ T2722] ? mutex_unlock+0x29/0xf0 [ 443.536905][ T2722] kernfs_new_node+0x97/0x170 [ 443.541705][ T2722] __kernfs_create_file+0x4a/0x270 [ 443.546891][ T2722] cgroup_addrm_files+0xab8/0xfe0 [ 443.552029][ T2722] ? ____kasan_kmalloc+0xdc/0x110 [ 443.557229][ T2722] ? __kasan_kmalloc+0x9/0x10 [ 443.561920][ T2722] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 443.567646][ T2722] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 443.573896][ T2722] ? delete_node+0x759/0x7b0 [ 443.578571][ T2722] ? __kasan_check_read+0x11/0x20 [ 443.583685][ T2722] ? idr_replace+0x1c4/0x230 [ 443.588289][ T2722] ? idr_get_next+0x4b0/0x4b0 [ 443.592976][ T2722] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 443.598173][ T2722] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 443.603386][ T2722] css_populate_dir+0x137/0x370 [ 443.608237][ T2722] cgroup_apply_control_enable+0x8b9/0x12f0 [ 443.614237][ T2722] cgroup_apply_control+0x8e/0x7e0 [ 443.619342][ T2722] ? css_next_child+0x160/0x160 [ 443.624188][ T2722] ? stack_trace_save+0x12d/0x1f0 [ 443.629285][ T2722] ? io_schedule+0x120/0x120 [ 443.634106][ T2722] ? kernfs_fop_write_iter+0x15e/0x410 [ 443.639596][ T2722] ? __kasan_check_write+0x14/0x20 [ 443.644701][ T2722] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 443.650004][ T2722] cgroup_subtree_control_write+0xd19/0x1310 [ 443.656157][ T2722] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 443.662220][ T2722] ? __kasan_check_write+0x14/0x20 [ 443.667471][ T2722] ? _copy_from_iter+0x3fb/0xd60 [ 443.672626][ T2722] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 443.678610][ T2722] cgroup_file_write+0x28e/0x590 [ 443.683623][ T2722] ? cgroup_seqfile_stop+0xc0/0xc0 [ 443.688999][ T2722] ? mutex_trylock+0x180/0x180 [ 443.693782][ T2722] ? __kasan_check_write+0x14/0x20 [ 443.699058][ T2722] kernfs_fop_write_iter+0x2d0/0x410 [ 443.704784][ T2722] ? cgroup_seqfile_stop+0xc0/0xc0 [ 443.710346][ T2722] vfs_write+0xc4a/0xf80 [ 443.714600][ T2722] ? slab_free_freelist_hook+0xcc/0x1a0 [ 443.720138][ T2722] ? kernel_write+0x420/0x420 [ 443.725073][ T2722] ? do_sys_openat2+0x397/0x470 [ 443.729923][ T2722] ? __kasan_check_read+0x11/0x20 [ 443.734943][ T2722] ? __fdget_pos+0x27e/0x310 [ 443.739525][ T2722] ksys_write+0x198/0x2c0 [ 443.743897][ T2722] ? __ia32_sys_read+0x90/0x90 [ 443.748656][ T2722] ? debug_smp_processor_id+0x17/0x20 [ 443.754108][ T2722] __x64_sys_write+0x7b/0x90 [ 443.758966][ T2722] do_syscall_64+0x34/0x70 [ 443.763375][ T2722] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 443.769524][ T2722] RIP: 0033:0x7f48883727a9 [ 443.774220][ T2722] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 443.794753][ T2722] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 443.803337][ T2722] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 443.811401][ T2722] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 443.819586][ T2722] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 443.827650][ T2722] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 443.835617][ T2722] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000012 [ 443.843853][ T2722] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 443.877228][ T2726] FAULT_INJECTION: forcing a failure. [ 443.877228][ T2726] name failslab, interval 1, probability 0, space 0, times 0 [ 443.890220][ T2726] CPU: 0 PID: 2726 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 443.900624][ T2726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 443.910676][ T2726] Call Trace: [ 443.913955][ T2726] dump_stack_lvl+0x1e2/0x24b [ 443.918611][ T2726] ? bfq_pos_tree_add_move+0x43e/0x43e [ 443.924052][ T2726] ? selinux_kernfs_init_security+0x1a8/0x760 [ 443.930101][ T2726] dump_stack+0x15/0x17 [ 443.934237][ T2726] should_fail+0x3c0/0x510 [ 443.938631][ T2726] ? __kernfs_new_node+0x99/0x6e0 [ 443.943633][ T2726] __should_failslab+0x9f/0xe0 [ 443.948422][ T2726] should_failslab+0x9/0x20 [ 443.953082][ T2726] __kmalloc_track_caller+0x5f/0x350 [ 443.958345][ T2726] kstrdup_const+0x55/0x90 [ 443.962742][ T2726] __kernfs_new_node+0x99/0x6e0 [ 443.967580][ T2726] ? is_module_text_address+0xe1/0x140 [ 443.973136][ T2726] ? kernfs_new_node+0x170/0x170 [ 443.978052][ T2726] ? ptr_to_hashval+0x60/0x60 [ 443.982878][ T2726] ? mutex_lock+0xb2/0x1e0 [ 443.987444][ T2726] ? snprintf+0xd6/0x120 [ 443.991664][ T2726] ? mutex_unlock+0x29/0xf0 [ 443.996152][ T2726] kernfs_new_node+0x97/0x170 [ 444.000893][ T2726] __kernfs_create_file+0x4a/0x270 [ 444.005982][ T2726] cgroup_addrm_files+0xab8/0xfe0 [ 444.010984][ T2726] ? ____kasan_kmalloc+0xdc/0x110 [ 444.016029][ T2726] ? __kasan_kmalloc+0x9/0x10 [ 444.020684][ T2726] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 444.026330][ T2726] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 444.032491][ T2726] ? delete_node+0x759/0x7b0 [ 444.037073][ T2726] ? __kasan_check_read+0x11/0x20 [ 444.042086][ T2726] ? idr_replace+0x1c4/0x230 [ 444.046744][ T2726] ? idr_get_next+0x4b0/0x4b0 [ 444.051484][ T2726] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 444.056657][ T2726] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 444.062014][ T2726] css_populate_dir+0x137/0x370 [ 444.066846][ T2726] cgroup_apply_control_enable+0x8b9/0x12f0 [ 444.072742][ T2726] cgroup_apply_control+0x8e/0x7e0 [ 444.077923][ T2726] ? css_next_child+0x160/0x160 [ 444.082746][ T2726] ? stack_trace_save+0x12d/0x1f0 [ 444.087745][ T2726] ? io_schedule+0x120/0x120 [ 444.092399][ T2726] ? kernfs_fop_write_iter+0x15e/0x410 [ 444.097847][ T2726] ? __kasan_check_write+0x14/0x20 [ 444.102941][ T2726] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 444.108198][ T2726] cgroup_subtree_control_write+0xd19/0x1310 [ 444.114255][ T2726] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 444.120233][ T2726] ? __kasan_check_write+0x14/0x20 [ 444.125318][ T2726] ? _copy_from_iter+0x3fb/0xd60 [ 444.130541][ T2726] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 444.136492][ T2726] cgroup_file_write+0x28e/0x590 [ 444.141496][ T2726] ? cgroup_seqfile_stop+0xc0/0xc0 [ 444.146601][ T2726] ? mutex_trylock+0x180/0x180 [ 444.151357][ T2726] ? __kasan_check_write+0x14/0x20 [ 444.156446][ T2726] kernfs_fop_write_iter+0x2d0/0x410 [ 444.161707][ T2726] ? cgroup_seqfile_stop+0xc0/0xc0 [ 444.166795][ T2726] vfs_write+0xc4a/0xf80 [ 444.171274][ T2726] ? slab_free_freelist_hook+0xcc/0x1a0 [ 444.176801][ T2726] ? kernel_write+0x420/0x420 [ 444.181537][ T2726] ? do_sys_openat2+0x397/0x470 [ 444.186584][ T2726] ? __kasan_check_read+0x11/0x20 [ 444.191818][ T2726] ? __fdget_pos+0x27e/0x310 [ 444.196447][ T2726] ksys_write+0x198/0x2c0 [ 444.200960][ T2726] ? __ia32_sys_read+0x90/0x90 [ 444.205705][ T2726] ? debug_smp_processor_id+0x17/0x20 [ 444.211053][ T2726] __x64_sys_write+0x7b/0x90 [ 444.215719][ T2726] do_syscall_64+0x34/0x70 [ 444.220286][ T2726] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 444.226250][ T2726] RIP: 0033:0x7f48883727a9 [ 444.230665][ T2726] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 444.250314][ T2726] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 444.258821][ T2726] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 444.266868][ T2726] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 444.274823][ T2726] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 444.282770][ T2726] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 444.290915][ T2726] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000013 [ 444.299360][ T2726] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 444.357236][ T2725] FAULT_INJECTION: forcing a failure. [ 444.357236][ T2725] name failslab, interval 1, probability 0, space 0, times 0 [ 444.369983][ T2725] CPU: 1 PID: 2725 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 444.380528][ T2725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 444.390836][ T2725] Call Trace: [ 444.394282][ T2725] dump_stack_lvl+0x1e2/0x24b [ 444.398976][ T2725] ? bfq_pos_tree_add_move+0x43e/0x43e [ 444.404521][ T2725] ? selinux_kernfs_init_security+0x1a8/0x760 [ 444.410865][ T2725] dump_stack+0x15/0x17 [ 444.415031][ T2725] should_fail+0x3c0/0x510 [ 444.419723][ T2725] ? __kernfs_new_node+0x99/0x6e0 [ 444.424900][ T2725] __should_failslab+0x9f/0xe0 [ 444.430002][ T2725] should_failslab+0x9/0x20 [ 444.434495][ T2725] __kmalloc_track_caller+0x5f/0x350 [ 444.439780][ T2725] kstrdup_const+0x55/0x90 [ 444.444199][ T2725] __kernfs_new_node+0x99/0x6e0 [ 444.449343][ T2725] ? is_module_text_address+0xe1/0x140 [ 444.455249][ T2725] ? kernfs_new_node+0x170/0x170 [ 444.460205][ T2725] ? ptr_to_hashval+0x60/0x60 [ 444.465096][ T2725] ? mutex_lock+0xb2/0x1e0 [ 444.469514][ T2725] ? snprintf+0xd6/0x120 [ 444.473746][ T2725] ? mutex_unlock+0x29/0xf0 [ 444.478572][ T2725] kernfs_new_node+0x97/0x170 [ 444.483507][ T2725] __kernfs_create_file+0x4a/0x270 [ 444.488726][ T2725] cgroup_addrm_files+0xab8/0xfe0 [ 444.493762][ T2725] ? ____kasan_kmalloc+0xdc/0x110 [ 444.498802][ T2725] ? __kasan_kmalloc+0x9/0x10 [ 444.503568][ T2725] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 444.509285][ T2725] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 444.515534][ T2725] ? delete_node+0x759/0x7b0 [ 444.520218][ T2725] ? __kasan_check_read+0x11/0x20 [ 444.525405][ T2725] ? idr_replace+0x1c4/0x230 [ 444.529985][ T2725] ? idr_get_next+0x4b0/0x4b0 [ 444.534752][ T2725] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 444.539756][ T2725] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 444.545147][ T2725] css_populate_dir+0x137/0x370 [ 444.550126][ T2725] cgroup_apply_control_enable+0x8b9/0x12f0 [ 444.556140][ T2725] cgroup_apply_control+0x8e/0x7e0 [ 444.561342][ T2725] ? css_next_child+0x160/0x160 [ 444.566309][ T2725] ? stack_trace_save+0x12d/0x1f0 [ 444.571537][ T2725] ? io_schedule+0x120/0x120 [ 444.576126][ T2725] ? kernfs_fop_write_iter+0x15e/0x410 [ 444.581588][ T2725] ? __kasan_check_write+0x14/0x20 [ 444.586778][ T2725] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 444.592050][ T2725] cgroup_subtree_control_write+0xd19/0x1310 [ 444.598024][ T2725] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 444.604367][ T2725] ? __kasan_check_write+0x14/0x20 [ 444.609472][ T2725] ? _copy_from_iter+0x3fb/0xd60 [ 444.614421][ T2725] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 444.620527][ T2725] cgroup_file_write+0x28e/0x590 [ 444.625456][ T2725] ? cgroup_seqfile_stop+0xc0/0xc0 [ 444.630701][ T2725] ? mutex_trylock+0x180/0x180 [ 444.635552][ T2725] ? __kasan_check_write+0x14/0x20 [ 444.640825][ T2725] kernfs_fop_write_iter+0x2d0/0x410 [ 444.646118][ T2725] ? cgroup_seqfile_stop+0xc0/0xc0 [ 444.651329][ T2725] vfs_write+0xc4a/0xf80 [ 444.655702][ T2725] ? slab_free_freelist_hook+0xcc/0x1a0 [ 444.661235][ T2725] ? kernel_write+0x420/0x420 [ 444.665897][ T2725] ? do_sys_openat2+0x397/0x470 [ 444.670731][ T2725] ? __kasan_check_read+0x11/0x20 [ 444.675855][ T2725] ? __fdget_pos+0x27e/0x310 [ 444.680537][ T2725] ksys_write+0x198/0x2c0 [ 444.685036][ T2725] ? __ia32_sys_read+0x90/0x90 [ 444.689801][ T2725] ? debug_smp_processor_id+0x17/0x20 [ 444.695165][ T2725] __x64_sys_write+0x7b/0x90 [ 444.699933][ T2725] do_syscall_64+0x34/0x70 [ 444.704508][ T2725] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 444.710392][ T2725] RIP: 0033:0x7f48883727a9 [ 444.714821][ T2725] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 444.734728][ T2725] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 444.743300][ T2725] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 444.751368][ T2725] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 444.759573][ T2725] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 444.767541][ T2725] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 444.775710][ T2725] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000010 [ 444.784152][ T2725] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 444.827260][ T2720] FAULT_INJECTION: forcing a failure. [ 444.827260][ T2720] name failslab, interval 1, probability 0, space 0, times 0 [ 444.839907][ T2720] CPU: 1 PID: 2720 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 444.850388][ T2720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 444.860796][ T2720] Call Trace: [ 444.864101][ T2720] dump_stack_lvl+0x1e2/0x24b [ 444.868774][ T2720] ? bfq_pos_tree_add_move+0x43e/0x43e [ 444.874302][ T2720] ? selinux_kernfs_init_security+0x1a8/0x760 [ 444.880624][ T2720] dump_stack+0x15/0x17 [ 444.884864][ T2720] should_fail+0x3c0/0x510 [ 444.889258][ T2720] ? __kernfs_new_node+0x99/0x6e0 [ 444.894353][ T2720] __should_failslab+0x9f/0xe0 [ 444.899114][ T2720] should_failslab+0x9/0x20 [ 444.903708][ T2720] __kmalloc_track_caller+0x5f/0x350 [ 444.909086][ T2720] kstrdup_const+0x55/0x90 [ 444.913568][ T2720] __kernfs_new_node+0x99/0x6e0 [ 444.918411][ T2720] ? is_module_text_address+0xe1/0x140 [ 444.923866][ T2720] ? kernfs_new_node+0x170/0x170 [ 444.928920][ T2720] ? ptr_to_hashval+0x60/0x60 [ 444.933579][ T2720] ? mutex_lock+0xb2/0x1e0 [ 444.938011][ T2720] ? snprintf+0xd6/0x120 [ 444.942234][ T2720] ? mutex_unlock+0x29/0xf0 [ 444.946723][ T2720] kernfs_new_node+0x97/0x170 [ 444.951411][ T2720] __kernfs_create_file+0x4a/0x270 [ 444.956503][ T2720] cgroup_addrm_files+0xab8/0xfe0 [ 444.961550][ T2720] ? ____kasan_kmalloc+0xdc/0x110 [ 444.966642][ T2720] ? __kasan_kmalloc+0x9/0x10 [ 444.971328][ T2720] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 444.976866][ T2720] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 444.982998][ T2720] ? delete_node+0x759/0x7b0 [ 444.987574][ T2720] ? __kasan_check_read+0x11/0x20 [ 444.992589][ T2720] ? idr_replace+0x1c4/0x230 [ 444.997154][ T2720] ? idr_get_next+0x4b0/0x4b0 [ 445.001808][ T2720] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 445.006920][ T2720] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 445.012107][ T2720] css_populate_dir+0x137/0x370 [ 445.016946][ T2720] cgroup_apply_control_enable+0x8b9/0x12f0 [ 445.022820][ T2720] cgroup_apply_control+0x8e/0x7e0 [ 445.027947][ T2720] ? css_next_child+0x160/0x160 [ 445.032793][ T2720] ? stack_trace_save+0x12d/0x1f0 [ 445.037832][ T2720] ? io_schedule+0x120/0x120 [ 445.042399][ T2720] ? kernfs_fop_write_iter+0x15e/0x410 [ 445.047834][ T2720] ? __kasan_check_write+0x14/0x20 [ 445.053103][ T2720] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 445.058453][ T2720] cgroup_subtree_control_write+0xd19/0x1310 [ 445.064733][ T2720] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 445.070949][ T2720] ? __kasan_check_write+0x14/0x20 [ 445.076107][ T2720] ? _copy_from_iter+0x3fb/0xd60 [ 445.081154][ T2720] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 445.087212][ T2720] cgroup_file_write+0x28e/0x590 [ 445.092141][ T2720] ? cgroup_seqfile_stop+0xc0/0xc0 [ 445.097301][ T2720] ? mutex_trylock+0x180/0x180 [ 445.102051][ T2720] ? __kasan_check_write+0x14/0x20 [ 445.107148][ T2720] kernfs_fop_write_iter+0x2d0/0x410 [ 445.112420][ T2720] ? cgroup_seqfile_stop+0xc0/0xc0 [ 445.117796][ T2720] vfs_write+0xc4a/0xf80 [ 445.122028][ T2720] ? slab_free_freelist_hook+0xcc/0x1a0 [ 445.127732][ T2720] ? kernel_write+0x420/0x420 [ 445.132423][ T2720] ? do_sys_openat2+0x397/0x470 [ 445.137280][ T2720] ? __kasan_check_read+0x11/0x20 [ 445.142379][ T2720] ? __fdget_pos+0x27e/0x310 [ 445.147044][ T2720] ksys_write+0x198/0x2c0 [ 445.151381][ T2720] ? __ia32_sys_read+0x90/0x90 [ 445.156132][ T2720] ? debug_smp_processor_id+0x17/0x20 [ 445.161591][ T2720] __x64_sys_write+0x7b/0x90 [ 445.166607][ T2720] do_syscall_64+0x34/0x70 [ 445.171026][ T2720] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 445.176904][ T2720] RIP: 0033:0x7f48883727a9 [ 445.181311][ T2720] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 445.201312][ T2720] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 445.209713][ T2720] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 445.217956][ T2720] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 445.226102][ T2720] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 445.234295][ T2720] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 445.242277][ T2720] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000a [ 445.250630][ T2720] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 445.297276][ T2727] FAULT_INJECTION: forcing a failure. [ 445.297276][ T2727] name failslab, interval 1, probability 0, space 0, times 0 [ 445.310185][ T2727] CPU: 1 PID: 2727 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 445.320626][ T2727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 445.330680][ T2727] Call Trace: [ 445.333964][ T2727] dump_stack_lvl+0x1e2/0x24b [ 445.338629][ T2727] ? bfq_pos_tree_add_move+0x43e/0x43e [ 445.344199][ T2727] ? selinux_kernfs_init_security+0x1a8/0x760 [ 445.350525][ T2727] dump_stack+0x15/0x17 [ 445.354781][ T2727] should_fail+0x3c0/0x510 [ 445.359217][ T2727] ? __kernfs_new_node+0x99/0x6e0 [ 445.364339][ T2727] __should_failslab+0x9f/0xe0 [ 445.369125][ T2727] should_failslab+0x9/0x20 [ 445.373713][ T2727] __kmalloc_track_caller+0x5f/0x350 [ 445.379075][ T2727] kstrdup_const+0x55/0x90 [ 445.383483][ T2727] __kernfs_new_node+0x99/0x6e0 [ 445.388470][ T2727] ? is_module_text_address+0xe1/0x140 [ 445.393924][ T2727] ? kernfs_new_node+0x170/0x170 [ 445.398988][ T2727] ? ptr_to_hashval+0x60/0x60 [ 445.403669][ T2727] ? mutex_lock+0xb2/0x1e0 [ 445.408877][ T2727] ? snprintf+0xd6/0x120 [ 445.413367][ T2727] ? mutex_unlock+0x29/0xf0 [ 445.418178][ T2727] kernfs_new_node+0x97/0x170 [ 445.422867][ T2727] __kernfs_create_file+0x4a/0x270 [ 445.428666][ T2727] cgroup_addrm_files+0xab8/0xfe0 [ 445.433713][ T2727] ? ____kasan_kmalloc+0xdc/0x110 [ 445.438751][ T2727] ? __kasan_kmalloc+0x9/0x10 [ 445.443473][ T2727] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 445.449208][ T2727] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 445.455362][ T2727] ? delete_node+0x759/0x7b0 [ 445.459964][ T2727] ? __kasan_check_read+0x11/0x20 [ 445.465088][ T2727] ? idr_replace+0x1c4/0x230 [ 445.469762][ T2727] ? idr_get_next+0x4b0/0x4b0 [ 445.474556][ T2727] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 445.479645][ T2727] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 445.484932][ T2727] css_populate_dir+0x137/0x370 [ 445.489875][ T2727] cgroup_apply_control_enable+0x8b9/0x12f0 [ 445.495770][ T2727] cgroup_apply_control+0x8e/0x7e0 [ 445.500912][ T2727] ? css_next_child+0x160/0x160 [ 445.505757][ T2727] ? stack_trace_save+0x12d/0x1f0 [ 445.510857][ T2727] ? io_schedule+0x120/0x120 [ 445.515498][ T2727] ? kernfs_fop_write_iter+0x15e/0x410 [ 445.520966][ T2727] ? __kasan_check_write+0x14/0x20 [ 445.526092][ T2727] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 445.531724][ T2727] cgroup_subtree_control_write+0xd19/0x1310 [ 445.537717][ T2727] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 445.543772][ T2727] ? __kasan_check_write+0x14/0x20 [ 445.549120][ T2727] ? _copy_from_iter+0x3fb/0xd60 [ 445.554067][ T2727] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 445.560042][ T2727] cgroup_file_write+0x28e/0x590 [ 445.564978][ T2727] ? cgroup_seqfile_stop+0xc0/0xc0 [ 445.571134][ T2727] ? mutex_trylock+0x180/0x180 [ 445.575893][ T2727] ? __kasan_check_write+0x14/0x20 [ 445.580997][ T2727] kernfs_fop_write_iter+0x2d0/0x410 [ 445.586374][ T2727] ? cgroup_seqfile_stop+0xc0/0xc0 [ 445.591582][ T2727] vfs_write+0xc4a/0xf80 [ 445.595812][ T2727] ? slab_free_freelist_hook+0xcc/0x1a0 [ 445.601366][ T2727] ? kernel_write+0x420/0x420 [ 445.606056][ T2727] ? do_sys_openat2+0x397/0x470 [ 445.610924][ T2727] ? __kasan_check_read+0x11/0x20 [ 445.616032][ T2727] ? __fdget_pos+0x27e/0x310 [ 445.620607][ T2727] ksys_write+0x198/0x2c0 [ 445.625004][ T2727] ? __ia32_sys_read+0x90/0x90 [ 445.629746][ T2727] ? debug_smp_processor_id+0x17/0x20 [ 445.635206][ T2727] __x64_sys_write+0x7b/0x90 [ 445.639800][ T2727] do_syscall_64+0x34/0x70 [ 445.644221][ T2727] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 445.650191][ T2727] RIP: 0033:0x7f48883727a9 [ 445.654681][ T2727] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 445.674562][ T2727] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 445.682974][ T2727] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 445.691144][ T2727] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 445.699125][ T2727] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 445.707196][ T2727] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 445.715250][ T2727] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000014 [ 445.723773][ T2727] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 445.767475][ T2731] FAULT_INJECTION: forcing a failure. [ 445.767475][ T2731] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 445.780840][ T2731] CPU: 0 PID: 2731 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 445.791324][ T2731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 445.801373][ T2731] Call Trace: [ 445.804667][ T2731] dump_stack_lvl+0x1e2/0x24b [ 445.809326][ T2731] ? bfq_pos_tree_add_move+0x43e/0x43e [ 445.814762][ T2731] ? stack_trace_save+0x12d/0x1f0 [ 445.819764][ T2731] dump_stack+0x15/0x17 [ 445.823904][ T2731] should_fail+0x3c0/0x510 [ 445.828331][ T2731] should_fail_alloc_page+0x50/0x60 [ 445.833510][ T2731] __alloc_pages_nodemask+0x1c0/0x890 [ 445.838861][ T2731] ? __kasan_check_write+0x14/0x20 [ 445.843961][ T2731] ? delete_node+0x759/0x7b0 [ 445.848530][ T2731] ? mutex_trylock+0x180/0x180 [ 445.853413][ T2731] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 445.859121][ T2731] ? kernfs_xattr_get+0x80/0x90 [ 445.863954][ T2731] ? selinux_kernfs_init_security+0x1a8/0x760 [ 445.869995][ T2731] allocate_slab+0x78/0x540 [ 445.874497][ T2731] ___slab_alloc+0x131/0x2e0 [ 445.879064][ T2731] ? __kernfs_new_node+0xdb/0x6e0 [ 445.884060][ T2731] __slab_alloc+0x63/0xa0 [ 445.888433][ T2731] ? __kernfs_new_node+0xdb/0x6e0 [ 445.893433][ T2731] kmem_cache_alloc+0x1ef/0x300 [ 445.898278][ T2731] ? __kernfs_new_node+0xdb/0x6e0 [ 445.903400][ T2731] __kernfs_new_node+0xdb/0x6e0 [ 445.908316][ T2731] ? is_module_text_address+0xe1/0x140 [ 445.913759][ T2731] ? kernfs_new_node+0x170/0x170 [ 445.918672][ T2731] ? ptr_to_hashval+0x60/0x60 [ 445.923336][ T2731] ? arch_stack_walk+0xf8/0x140 [ 445.928165][ T2731] ? snprintf+0xd6/0x120 [ 445.932384][ T2731] kernfs_new_node+0x97/0x170 [ 445.937154][ T2731] __kernfs_create_file+0x4a/0x270 [ 445.942349][ T2731] cgroup_addrm_files+0xab8/0xfe0 [ 445.947359][ T2731] ? ____kasan_kmalloc+0xdc/0x110 [ 445.952363][ T2731] ? __kasan_kmalloc+0x9/0x10 [ 445.957277][ T2731] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 445.962797][ T2731] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 445.969015][ T2731] ? delete_node+0x759/0x7b0 [ 445.973578][ T2731] ? __kasan_check_read+0x11/0x20 [ 445.978708][ T2731] ? delete_node+0x759/0x7b0 [ 445.983272][ T2731] ? __kasan_check_write+0x14/0x20 [ 445.988357][ T2731] ? idr_replace+0x1c4/0x230 [ 445.992935][ T2731] ? idr_get_next+0x4b0/0x4b0 [ 445.997688][ T2731] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 446.002698][ T2731] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 446.008021][ T2731] css_populate_dir+0x137/0x370 [ 446.012877][ T2731] cgroup_apply_control_enable+0x8b9/0x12f0 [ 446.018888][ T2731] cgroup_apply_control+0x8e/0x7e0 [ 446.024009][ T2731] ? css_next_child+0x160/0x160 [ 446.028931][ T2731] ? stack_trace_save+0x12d/0x1f0 [ 446.034262][ T2731] ? io_schedule+0x120/0x120 [ 446.039014][ T2731] ? kernfs_fop_write_iter+0x15e/0x410 [ 446.044736][ T2731] ? __kasan_check_write+0x14/0x20 [ 446.049851][ T2731] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 446.055119][ T2731] cgroup_subtree_control_write+0xd19/0x1310 [ 446.061074][ T2731] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 446.067038][ T2731] ? __kasan_check_write+0x14/0x20 [ 446.072208][ T2731] ? _copy_from_iter+0x3fb/0xd60 [ 446.077490][ T2731] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 446.083445][ T2731] cgroup_file_write+0x28e/0x590 [ 446.088448][ T2731] ? cgroup_seqfile_stop+0xc0/0xc0 [ 446.093638][ T2731] ? mutex_trylock+0x180/0x180 [ 446.098395][ T2731] ? __kasan_check_write+0x14/0x20 [ 446.103479][ T2731] kernfs_fop_write_iter+0x2d0/0x410 [ 446.108752][ T2731] ? cgroup_seqfile_stop+0xc0/0xc0 [ 446.113841][ T2731] vfs_write+0xc4a/0xf80 [ 446.118077][ T2731] ? slab_free_freelist_hook+0xcc/0x1a0 [ 446.124241][ T2731] ? kernel_write+0x420/0x420 [ 446.128901][ T2731] ? do_sys_openat2+0x397/0x470 [ 446.133728][ T2731] ? __kasan_check_read+0x11/0x20 [ 446.138731][ T2731] ? __fdget_pos+0x27e/0x310 [ 446.143318][ T2731] ksys_write+0x198/0x2c0 [ 446.147714][ T2731] ? __ia32_sys_read+0x90/0x90 [ 446.152458][ T2731] ? debug_smp_processor_id+0x17/0x20 [ 446.158256][ T2731] __x64_sys_write+0x7b/0x90 [ 446.162851][ T2731] do_syscall_64+0x34/0x70 [ 446.167259][ T2731] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 446.173202][ T2731] RIP: 0033:0x7f48883727a9 [ 446.177601][ T2731] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 446.197200][ T2731] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 446.205625][ T2731] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 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 [ 446.213770][ T2731] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 446.221806][ T2731] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 446.229765][ T2731] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 446.237715][ T2731] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000015 [ 446.277498][ T2733] FAULT_INJECTION: forcing a failure. [ 446.277498][ T2733] name failslab, interval 1, probability 0, space 0, times 0 [ 446.290467][ T2733] CPU: 0 PID: 2733 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 446.300974][ T2733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 446.311273][ T2733] Call Trace: [ 446.314555][ T2733] dump_stack_lvl+0x1e2/0x24b [ 446.319218][ T2733] ? bfq_pos_tree_add_move+0x43e/0x43e [ 446.324665][ T2733] ? selinux_kernfs_init_security+0x1a8/0x760 [ 446.330730][ T2733] dump_stack+0x15/0x17 [ 446.335009][ T2733] should_fail+0x3c0/0x510 [ 446.339528][ T2733] ? __kernfs_new_node+0x99/0x6e0 [ 446.344582][ T2733] __should_failslab+0x9f/0xe0 [ 446.349395][ T2733] should_failslab+0x9/0x20 [ 446.353886][ T2733] __kmalloc_track_caller+0x5f/0x350 [ 446.359150][ T2733] kstrdup_const+0x55/0x90 [ 446.363558][ T2733] __kernfs_new_node+0x99/0x6e0 [ 446.368434][ T2733] ? is_module_text_address+0xe1/0x140 [ 446.373906][ T2733] ? kernfs_new_node+0x170/0x170 [ 446.378835][ T2733] ? ptr_to_hashval+0x60/0x60 [ 446.383495][ T2733] ? mutex_lock+0xb2/0x1e0 [ 446.387911][ T2733] ? snprintf+0xd6/0x120 [ 446.392159][ T2733] ? mutex_unlock+0x29/0xf0 [ 446.396653][ T2733] kernfs_new_node+0x97/0x170 [ 446.401328][ T2733] __kernfs_create_file+0x4a/0x270 [ 446.406496][ T2733] cgroup_addrm_files+0xab8/0xfe0 [ 446.411742][ T2733] ? ____kasan_kmalloc+0xdc/0x110 [ 446.416761][ T2733] ? __kasan_kmalloc+0x9/0x10 [ 446.421573][ T2733] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 446.427120][ T2733] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 446.433396][ T2733] ? delete_node+0x759/0x7b0 [ 446.437977][ T2733] ? __kasan_check_read+0x11/0x20 [ 446.442996][ T2733] ? idr_replace+0x1c4/0x230 [ 446.447568][ T2733] ? idr_get_next+0x4b0/0x4b0 [ 446.452226][ T2733] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 446.457243][ T2733] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 446.462438][ T2733] css_populate_dir+0x137/0x370 [ 446.467313][ T2733] cgroup_apply_control_enable+0x8b9/0x12f0 [ 446.473305][ T2733] cgroup_apply_control+0x8e/0x7e0 [ 446.478500][ T2733] ? css_next_child+0x160/0x160 [ 446.483425][ T2733] ? stack_trace_save+0x12d/0x1f0 [ 446.488434][ T2733] ? io_schedule+0x120/0x120 [ 446.493005][ T2733] ? kernfs_fop_write_iter+0x15e/0x410 [ 446.498448][ T2733] ? __kasan_check_write+0x14/0x20 [ 446.503565][ T2733] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 446.509051][ T2733] cgroup_subtree_control_write+0xd19/0x1310 [ 446.515111][ T2733] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 446.521431][ T2733] ? __kasan_check_write+0x14/0x20 [ 446.526580][ T2733] ? _copy_from_iter+0x3fb/0xd60 [ 446.531636][ T2733] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 446.537632][ T2733] cgroup_file_write+0x28e/0x590 [ 446.542558][ T2733] ? cgroup_seqfile_stop+0xc0/0xc0 [ 446.547655][ T2733] ? mutex_trylock+0x180/0x180 [ 446.552577][ T2733] ? __kasan_check_write+0x14/0x20 [ 446.557761][ T2733] kernfs_fop_write_iter+0x2d0/0x410 [ 446.563039][ T2733] ? cgroup_seqfile_stop+0xc0/0xc0 [ 446.568221][ T2733] vfs_write+0xc4a/0xf80 [ 446.572448][ T2733] ? slab_free_freelist_hook+0xcc/0x1a0 [ 446.578014][ T2733] ? kernel_write+0x420/0x420 [ 446.582674][ T2733] ? do_sys_openat2+0x397/0x470 [ 446.587500][ T2733] ? __kasan_check_read+0x11/0x20 [ 446.592518][ T2733] ? __fdget_pos+0x27e/0x310 [ 446.597131][ T2733] ksys_write+0x198/0x2c0 [ 446.601463][ T2733] ? __ia32_sys_read+0x90/0x90 [ 446.606219][ T2733] ? debug_smp_processor_id+0x17/0x20 [ 446.611719][ T2733] __x64_sys_write+0x7b/0x90 [ 446.616421][ T2733] do_syscall_64+0x34/0x70 [ 446.620922][ T2733] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 446.626896][ T2733] RIP: 0033:0x7f48883727a9 [ 446.631294][ T2733] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 446.651678][ T2733] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 446.660189][ T2733] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 446.668208][ T2733] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 446.676161][ T2733] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 446.684212][ T2733] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 446.692251][ T2733] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000d [ 446.700630][ T2733] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 446.747106][ T2721] FAULT_INJECTION: forcing a failure. [ 446.747106][ T2721] name failslab, interval 1, probability 0, space 0, times 0 [ 446.759823][ T2721] CPU: 0 PID: 2721 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 446.770390][ T2721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 446.780633][ T2721] Call Trace: [ 446.783920][ T2721] dump_stack_lvl+0x1e2/0x24b [ 446.788665][ T2721] ? panic+0x7d7/0x7d7 [ 446.792711][ T2721] ? bfq_pos_tree_add_move+0x43e/0x43e [ 446.798328][ T2721] ? selinux_kernfs_init_security+0x1a8/0x760 [ 446.804479][ T2721] dump_stack+0x15/0x17 [ 446.808616][ T2721] should_fail+0x3c0/0x510 [ 446.813037][ T2721] __should_failslab+0x9f/0xe0 [ 446.817877][ T2721] should_failslab+0x9/0x20 [ 446.822648][ T2721] kmem_cache_alloc+0x3f/0x300 [ 446.827488][ T2721] ? __kernfs_new_node+0xdb/0x6e0 [ 446.832710][ T2721] __kernfs_new_node+0xdb/0x6e0 [ 446.837570][ T2721] ? is_module_text_address+0xe1/0x140 [ 446.843041][ T2721] ? kernfs_new_node+0x170/0x170 [ 446.848062][ T2721] ? ptr_to_hashval+0x60/0x60 [ 446.852724][ T2721] ? arch_stack_walk+0xf8/0x140 [ 446.857561][ T2721] ? snprintf+0xd6/0x120 [ 446.861957][ T2721] kernfs_new_node+0x97/0x170 [ 446.866752][ T2721] __kernfs_create_file+0x4a/0x270 [ 446.872029][ T2721] cgroup_addrm_files+0xab8/0xfe0 [ 446.877130][ T2721] ? ____kasan_kmalloc+0xdc/0x110 [ 446.882235][ T2721] ? __kasan_kmalloc+0x9/0x10 [ 446.886914][ T2721] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 446.892468][ T2721] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 446.898689][ T2721] ? delete_node+0x759/0x7b0 [ 446.903297][ T2721] ? __kasan_check_read+0x11/0x20 [ 446.908606][ T2721] ? delete_node+0x759/0x7b0 [ 446.913567][ T2721] ? __kasan_check_write+0x14/0x20 [ 446.918767][ T2721] ? idr_replace+0x1c4/0x230 [ 446.923619][ T2721] ? idr_get_next+0x4b0/0x4b0 [ 446.928278][ T2721] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 446.933323][ T2721] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 446.938502][ T2721] css_populate_dir+0x137/0x370 [ 446.943334][ T2721] cgroup_apply_control_enable+0x8b9/0x12f0 [ 446.949298][ T2721] cgroup_apply_control+0x8e/0x7e0 [ 446.954389][ T2721] ? css_next_child+0x160/0x160 [ 446.960267][ T2721] ? stack_trace_save+0x12d/0x1f0 [ 446.965704][ T2721] ? io_schedule+0x120/0x120 [ 446.970351][ T2721] ? kernfs_fop_write_iter+0x15e/0x410 [ 446.975792][ T2721] ? __kasan_check_write+0x14/0x20 [ 446.980888][ T2721] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 446.986263][ T2721] cgroup_subtree_control_write+0xd19/0x1310 [ 446.992346][ T2721] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 446.998323][ T2721] ? __kasan_check_write+0x14/0x20 [ 447.003607][ T2721] ? _copy_from_iter+0x3fb/0xd60 [ 447.008559][ T2721] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 447.014601][ T2721] cgroup_file_write+0x28e/0x590 [ 447.019780][ T2721] ? cgroup_seqfile_stop+0xc0/0xc0 [ 447.024888][ T2721] ? mutex_trylock+0x180/0x180 [ 447.029912][ T2721] ? __kasan_check_write+0x14/0x20 [ 447.035038][ T2721] kernfs_fop_write_iter+0x2d0/0x410 [ 447.040355][ T2721] ? cgroup_seqfile_stop+0xc0/0xc0 [ 447.045471][ T2721] vfs_write+0xc4a/0xf80 [ 447.049926][ T2721] ? slab_free_freelist_hook+0xcc/0x1a0 [ 447.055617][ T2721] ? kernel_write+0x420/0x420 [ 447.060368][ T2721] ? do_sys_openat2+0x397/0x470 [ 447.065302][ T2721] ? __kasan_check_read+0x11/0x20 [ 447.070305][ T2721] ? __fdget_pos+0x27e/0x310 [ 447.074870][ T2721] ksys_write+0x198/0x2c0 [ 447.079178][ T2721] ? __ia32_sys_read+0x90/0x90 [ 447.083988][ T2721] ? debug_smp_processor_id+0x17/0x20 [ 447.089758][ T2721] __x64_sys_write+0x7b/0x90 [ 447.094327][ T2721] do_syscall_64+0x34/0x70 [ 447.098724][ T2721] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 447.104593][ T2721] RIP: 0033:0x7f48883727a9 [ 447.108986][ T2721] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 447.129032][ T2721] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 447.137427][ T2721] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 447.145380][ T2721] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 447.153415][ T2721] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 447.161461][ T2721] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 447.169622][ T2721] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000d [ 447.178288][ T2721] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 447.207009][ T2724] FAULT_INJECTION: forcing a failure. [ 447.207009][ T2724] name failslab, interval 1, probability 0, space 0, times 0 [ 447.219712][ T2724] CPU: 1 PID: 2724 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 447.230379][ T2724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 447.240426][ T2724] Call Trace: [ 447.243818][ T2724] dump_stack_lvl+0x1e2/0x24b [ 447.248614][ T2724] ? bfq_pos_tree_add_move+0x43e/0x43e [ 447.254296][ T2724] ? selinux_kernfs_init_security+0x1a8/0x760 [ 447.260395][ T2724] dump_stack+0x15/0x17 [ 447.264563][ T2724] should_fail+0x3c0/0x510 [ 447.268976][ T2724] ? __kernfs_new_node+0x99/0x6e0 [ 447.274012][ T2724] __should_failslab+0x9f/0xe0 [ 447.278866][ T2724] should_failslab+0x9/0x20 [ 447.283361][ T2724] __kmalloc_track_caller+0x5f/0x350 [ 447.288632][ T2724] kstrdup_const+0x55/0x90 [ 447.293581][ T2724] __kernfs_new_node+0x99/0x6e0 [ 447.298416][ T2724] ? is_module_text_address+0xe1/0x140 [ 447.303949][ T2724] ? kernfs_new_node+0x170/0x170 [ 447.308871][ T2724] ? ptr_to_hashval+0x60/0x60 [ 447.313622][ T2724] ? mutex_lock+0xb2/0x1e0 [ 447.318032][ T2724] ? snprintf+0xd6/0x120 [ 447.322261][ T2724] ? mutex_unlock+0x29/0xf0 [ 447.326855][ T2724] kernfs_new_node+0x97/0x170 [ 447.331904][ T2724] __kernfs_create_file+0x4a/0x270 [ 447.337132][ T2724] cgroup_addrm_files+0xab8/0xfe0 [ 447.342371][ T2724] ? ____kasan_kmalloc+0xdc/0x110 [ 447.347569][ T2724] ? __kasan_kmalloc+0x9/0x10 [ 447.352228][ T2724] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 447.357761][ T2724] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 447.363906][ T2724] ? delete_node+0x759/0x7b0 [ 447.368490][ T2724] ? __kasan_check_read+0x11/0x20 [ 447.373544][ T2724] ? idr_replace+0x1c4/0x230 [ 447.378258][ T2724] ? idr_get_next+0x4b0/0x4b0 [ 447.382918][ T2724] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 447.387953][ T2724] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 447.393507][ T2724] css_populate_dir+0x137/0x370 [ 447.398371][ T2724] cgroup_apply_control_enable+0x8b9/0x12f0 [ 447.404269][ T2724] cgroup_apply_control+0x8e/0x7e0 [ 447.409722][ T2724] ? css_next_child+0x160/0x160 [ 447.414560][ T2724] ? stack_trace_save+0x12d/0x1f0 [ 447.419568][ T2724] ? io_schedule+0x120/0x120 [ 447.424264][ T2724] ? kernfs_fop_write_iter+0x15e/0x410 [ 447.429736][ T2724] ? __kasan_check_write+0x14/0x20 [ 447.434836][ T2724] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 447.440137][ T2724] cgroup_subtree_control_write+0xd19/0x1310 [ 447.446142][ T2724] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 447.452235][ T2724] ? __kasan_check_write+0x14/0x20 [ 447.457343][ T2724] ? _copy_from_iter+0x3fb/0xd60 [ 447.462284][ T2724] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 447.468263][ T2724] cgroup_file_write+0x28e/0x590 [ 447.473183][ T2724] ? cgroup_seqfile_stop+0xc0/0xc0 [ 447.478291][ T2724] ? mutex_trylock+0x180/0x180 [ 447.483057][ T2724] ? __kasan_check_write+0x14/0x20 [ 447.488164][ T2724] kernfs_fop_write_iter+0x2d0/0x410 [ 447.493433][ T2724] ? cgroup_seqfile_stop+0xc0/0xc0 [ 447.498713][ T2724] vfs_write+0xc4a/0xf80 [ 447.502954][ T2724] ? slab_free_freelist_hook+0xcc/0x1a0 [ 447.508485][ T2724] ? kernel_write+0x420/0x420 [ 447.513475][ T2724] ? do_sys_openat2+0x397/0x470 [ 447.518589][ T2724] ? __kasan_check_read+0x11/0x20 [ 447.523735][ T2724] ? __fdget_pos+0x27e/0x310 [ 447.528352][ T2724] ksys_write+0x198/0x2c0 [ 447.532690][ T2724] ? __ia32_sys_read+0x90/0x90 [ 447.537448][ T2724] ? debug_smp_processor_id+0x17/0x20 [ 447.542865][ T2724] __x64_sys_write+0x7b/0x90 [ 447.547461][ T2724] do_syscall_64+0x34/0x70 [ 447.551982][ T2724] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 447.558224][ T2724] RIP: 0033:0x7f48883727a9 [ 447.562721][ T2724] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 447.582318][ T2724] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 447.590721][ T2724] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 447.598691][ T2724] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 447.606747][ T2724] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 447.614703][ T2724] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 447.622727][ T2724] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000010 [ 447.631109][ T2724] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 447.677255][ T2736] FAULT_INJECTION: forcing a failure. [ 447.677255][ T2736] name failslab, interval 1, probability 0, space 0, times 0 [ 447.690218][ T2736] CPU: 1 PID: 2736 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 447.701481][ T2736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 447.711523][ T2736] Call Trace: [ 447.714809][ T2736] dump_stack_lvl+0x1e2/0x24b [ 447.719484][ T2736] ? bfq_pos_tree_add_move+0x43e/0x43e [ 447.725362][ T2736] ? selinux_kernfs_init_security+0x1a8/0x760 [ 447.731669][ T2736] dump_stack+0x15/0x17 [ 447.735809][ T2736] should_fail+0x3c0/0x510 [ 447.740268][ T2736] ? __kernfs_new_node+0x99/0x6e0 [ 447.745379][ T2736] __should_failslab+0x9f/0xe0 [ 447.750480][ T2736] should_failslab+0x9/0x20 [ 447.754989][ T2736] __kmalloc_track_caller+0x5f/0x350 [ 447.760273][ T2736] kstrdup_const+0x55/0x90 [ 447.764689][ T2736] __kernfs_new_node+0x99/0x6e0 [ 447.769524][ T2736] ? is_module_text_address+0xe1/0x140 [ 447.774973][ T2736] ? kernfs_new_node+0x170/0x170 [ 447.779946][ T2736] ? ptr_to_hashval+0x60/0x60 [ 447.784630][ T2736] ? mutex_lock+0xb2/0x1e0 [ 447.789109][ T2736] ? snprintf+0xd6/0x120 [ 447.793358][ T2736] ? mutex_unlock+0x29/0xf0 [ 447.797864][ T2736] kernfs_new_node+0x97/0x170 [ 447.802533][ T2736] __kernfs_create_file+0x4a/0x270 [ 447.807733][ T2736] cgroup_addrm_files+0xab8/0xfe0 [ 447.812749][ T2736] ? ____kasan_kmalloc+0xdc/0x110 [ 447.817955][ T2736] ? __kasan_kmalloc+0x9/0x10 [ 447.822631][ T2736] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 447.828178][ T2736] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 447.834549][ T2736] ? delete_node+0x759/0x7b0 [ 447.839182][ T2736] ? __kasan_check_read+0x11/0x20 [ 447.844198][ T2736] ? idr_replace+0x1c4/0x230 [ 447.848781][ T2736] ? idr_get_next+0x4b0/0x4b0 [ 447.853644][ T2736] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 447.858683][ T2736] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 447.863877][ T2736] css_populate_dir+0x137/0x370 [ 447.868715][ T2736] cgroup_apply_control_enable+0x8b9/0x12f0 [ 447.874600][ T2736] cgroup_apply_control+0x8e/0x7e0 [ 447.879714][ T2736] ? css_next_child+0x160/0x160 [ 447.884638][ T2736] ? stack_trace_save+0x12d/0x1f0 [ 447.889642][ T2736] ? io_schedule+0x120/0x120 [ 447.894210][ T2736] ? kernfs_fop_write_iter+0x15e/0x410 [ 447.899670][ T2736] ? __kasan_check_write+0x14/0x20 [ 447.904764][ T2736] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 447.910029][ T2736] cgroup_subtree_control_write+0xd19/0x1310 [ 447.915987][ T2736] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 447.922137][ T2736] ? __kasan_check_write+0x14/0x20 [ 447.927244][ T2736] ? _copy_from_iter+0x3fb/0xd60 [ 447.932272][ T2736] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 447.938258][ T2736] cgroup_file_write+0x28e/0x590 [ 447.943182][ T2736] ? cgroup_seqfile_stop+0xc0/0xc0 [ 447.948276][ T2736] ? mutex_trylock+0x180/0x180 [ 447.953038][ T2736] ? __kasan_check_write+0x14/0x20 [ 447.958132][ T2736] kernfs_fop_write_iter+0x2d0/0x410 [ 447.963572][ T2736] ? cgroup_seqfile_stop+0xc0/0xc0 [ 447.968692][ T2736] vfs_write+0xc4a/0xf80 [ 447.972929][ T2736] ? slab_free_freelist_hook+0xcc/0x1a0 [ 447.978973][ T2736] ? kernel_write+0x420/0x420 [ 447.983621][ T2736] ? do_sys_openat2+0x397/0x470 [ 447.988893][ T2736] ? __kasan_check_read+0x11/0x20 [ 447.993891][ T2736] ? __fdget_pos+0x27e/0x310 [ 447.998460][ T2736] ksys_write+0x198/0x2c0 [ 448.002794][ T2736] ? __ia32_sys_read+0x90/0x90 [ 448.007594][ T2736] ? debug_smp_processor_id+0x17/0x20 [ 448.012975][ T2736] __x64_sys_write+0x7b/0x90 [ 448.017621][ T2736] do_syscall_64+0x34/0x70 [ 448.022129][ T2736] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 448.028469][ T2736] RIP: 0033:0x7f48883727a9 [ 448.032871][ T2736] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 448.052645][ T2736] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 448.061298][ T2736] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 448.069482][ T2736] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 448.077465][ T2736] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 448.085537][ T2736] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 448.093590][ T2736] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000011 [ 448.101811][ T2736] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 448.147096][ T2732] FAULT_INJECTION: forcing a failure. [ 448.147096][ T2732] name failslab, interval 1, probability 0, space 0, times 0 [ 448.160089][ T2732] CPU: 0 PID: 2732 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 448.170568][ T2732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 448.180617][ T2732] Call Trace: [ 448.183909][ T2732] dump_stack_lvl+0x1e2/0x24b [ 448.188581][ T2732] ? bfq_pos_tree_add_move+0x43e/0x43e [ 448.194318][ T2732] ? selinux_kernfs_init_security+0x1a8/0x760 [ 448.200383][ T2732] dump_stack+0x15/0x17 [ 448.204526][ T2732] should_fail+0x3c0/0x510 [ 448.208934][ T2732] ? __kernfs_new_node+0x99/0x6e0 [ 448.213942][ T2732] __should_failslab+0x9f/0xe0 [ 448.219062][ T2732] should_failslab+0x9/0x20 [ 448.223570][ T2732] __kmalloc_track_caller+0x5f/0x350 [ 448.228983][ T2732] kstrdup_const+0x55/0x90 [ 448.233490][ T2732] __kernfs_new_node+0x99/0x6e0 [ 448.238431][ T2732] ? is_module_text_address+0xe1/0x140 [ 448.243945][ T2732] ? kernfs_new_node+0x170/0x170 [ 448.248864][ T2732] ? ptr_to_hashval+0x60/0x60 [ 448.253535][ T2732] ? mutex_lock+0xb2/0x1e0 [ 448.257947][ T2732] ? snprintf+0xd6/0x120 [ 448.262208][ T2732] ? mutex_unlock+0x29/0xf0 [ 448.266719][ T2732] kernfs_new_node+0x97/0x170 [ 448.271397][ T2732] __kernfs_create_file+0x4a/0x270 [ 448.276486][ T2732] cgroup_addrm_files+0xab8/0xfe0 [ 448.281584][ T2732] ? ____kasan_kmalloc+0xdc/0x110 [ 448.286594][ T2732] ? __kasan_kmalloc+0x9/0x10 [ 448.291254][ T2732] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 448.296895][ T2732] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 448.303061][ T2732] ? delete_node+0x759/0x7b0 [ 448.307643][ T2732] ? __kasan_check_read+0x11/0x20 [ 448.312666][ T2732] ? idr_replace+0x1c4/0x230 [ 448.317523][ T2732] ? idr_get_next+0x4b0/0x4b0 [ 448.322976][ T2732] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 448.328126][ T2732] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 448.333324][ T2732] css_populate_dir+0x137/0x370 [ 448.338167][ T2732] cgroup_apply_control_enable+0x8b9/0x12f0 [ 448.344060][ T2732] cgroup_apply_control+0x8e/0x7e0 [ 448.349336][ T2732] ? css_next_child+0x160/0x160 [ 448.354229][ T2732] ? stack_trace_save+0x12d/0x1f0 [ 448.359246][ T2732] ? io_schedule+0x120/0x120 [ 448.363826][ T2732] ? kernfs_fop_write_iter+0x15e/0x410 [ 448.369400][ T2732] ? __kasan_check_write+0x14/0x20 [ 448.374566][ T2732] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 448.380173][ T2732] cgroup_subtree_control_write+0xd19/0x1310 [ 448.386256][ T2732] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 448.392227][ T2732] ? __kasan_check_write+0x14/0x20 [ 448.397406][ T2732] ? _copy_from_iter+0x3fb/0xd60 [ 448.402323][ T2732] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 448.408279][ T2732] cgroup_file_write+0x28e/0x590 [ 448.413297][ T2732] ? cgroup_seqfile_stop+0xc0/0xc0 [ 448.418502][ T2732] ? mutex_trylock+0x180/0x180 [ 448.423256][ T2732] ? __kasan_check_write+0x14/0x20 [ 448.428350][ T2732] kernfs_fop_write_iter+0x2d0/0x410 [ 448.433803][ T2732] ? cgroup_seqfile_stop+0xc0/0xc0 [ 448.438989][ T2732] vfs_write+0xc4a/0xf80 [ 448.443426][ T2732] ? slab_free_freelist_hook+0xcc/0x1a0 [ 448.448959][ T2732] ? kernel_write+0x420/0x420 [ 448.453621][ T2732] ? do_sys_openat2+0x397/0x470 [ 448.458673][ T2732] ? __kasan_check_read+0x11/0x20 [ 448.463690][ T2732] ? __fdget_pos+0x27e/0x310 [ 448.468280][ T2732] ksys_write+0x198/0x2c0 [ 448.472633][ T2732] ? __ia32_sys_read+0x90/0x90 [ 448.477391][ T2732] ? debug_smp_processor_id+0x17/0x20 [ 448.482930][ T2732] __x64_sys_write+0x7b/0x90 [ 448.487513][ T2732] do_syscall_64+0x34/0x70 [ 448.491916][ T2732] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 448.497877][ T2732] RIP: 0033:0x7f48883727a9 [ 448.502282][ T2732] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 448.522175][ T2732] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 448.530951][ T2732] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 448.539115][ T2732] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 448.547137][ T2732] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 448.555275][ T2732] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 448.563705][ T2732] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000016 [ 448.571834][ T2732] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 448.617267][ T2738] FAULT_INJECTION: forcing a failure. [ 448.617267][ T2738] name failslab, interval 1, probability 0, space 0, times 0 [ 448.630290][ T2738] CPU: 1 PID: 2738 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 448.640702][ T2738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 448.650938][ T2738] Call Trace: [ 448.654252][ T2738] dump_stack_lvl+0x1e2/0x24b [ 448.658926][ T2738] ? bfq_pos_tree_add_move+0x43e/0x43e [ 448.664369][ T2738] ? selinux_kernfs_init_security+0x1a8/0x760 [ 448.670679][ T2738] dump_stack+0x15/0x17 [ 448.674818][ T2738] should_fail+0x3c0/0x510 [ 448.679323][ T2738] ? __kernfs_new_node+0x99/0x6e0 [ 448.684325][ T2738] __should_failslab+0x9f/0xe0 [ 448.689070][ T2738] should_failslab+0x9/0x20 [ 448.693550][ T2738] __kmalloc_track_caller+0x5f/0x350 [ 448.698847][ T2738] kstrdup_const+0x55/0x90 [ 448.703601][ T2738] __kernfs_new_node+0x99/0x6e0 [ 448.708619][ T2738] ? is_module_text_address+0xe1/0x140 [ 448.714076][ T2738] ? kernfs_new_node+0x170/0x170 [ 448.719015][ T2738] ? ptr_to_hashval+0x60/0x60 [ 448.724378][ T2738] ? mutex_lock+0xb2/0x1e0 [ 448.728790][ T2738] ? snprintf+0xd6/0x120 [ 448.733034][ T2738] ? mutex_unlock+0x29/0xf0 [ 448.737651][ T2738] kernfs_new_node+0x97/0x170 [ 448.742423][ T2738] __kernfs_create_file+0x4a/0x270 [ 448.747523][ T2738] cgroup_addrm_files+0xab8/0xfe0 [ 448.752539][ T2738] ? ____kasan_kmalloc+0xdc/0x110 [ 448.757547][ T2738] ? __kasan_kmalloc+0x9/0x10 [ 448.762201][ T2738] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 448.767904][ T2738] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 448.774135][ T2738] ? delete_node+0x759/0x7b0 [ 448.778793][ T2738] ? __kasan_check_read+0x11/0x20 [ 448.783900][ T2738] ? idr_replace+0x1c4/0x230 [ 448.788471][ T2738] ? idr_get_next+0x4b0/0x4b0 [ 448.793129][ T2738] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 448.798152][ T2738] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 448.803417][ T2738] css_populate_dir+0x137/0x370 [ 448.808253][ T2738] cgroup_apply_control_enable+0x8b9/0x12f0 [ 448.814127][ T2738] cgroup_apply_control+0x8e/0x7e0 [ 448.819222][ T2738] ? css_next_child+0x160/0x160 [ 448.824061][ T2738] ? stack_trace_save+0x12d/0x1f0 [ 448.829093][ T2738] ? io_schedule+0x120/0x120 [ 448.833675][ T2738] ? kernfs_fop_write_iter+0x15e/0x410 [ 448.839125][ T2738] ? __kasan_check_write+0x14/0x20 [ 448.844225][ T2738] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 448.849491][ T2738] cgroup_subtree_control_write+0xd19/0x1310 [ 448.855672][ T2738] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 448.861748][ T2738] ? __kasan_check_write+0x14/0x20 [ 448.866885][ T2738] ? _copy_from_iter+0x3fb/0xd60 [ 448.871829][ T2738] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 448.877818][ T2738] cgroup_file_write+0x28e/0x590 [ 448.882746][ T2738] ? cgroup_seqfile_stop+0xc0/0xc0 [ 448.888020][ T2738] ? mutex_trylock+0x180/0x180 [ 448.892770][ T2738] ? __kasan_check_write+0x14/0x20 [ 448.897875][ T2738] kernfs_fop_write_iter+0x2d0/0x410 [ 448.903160][ T2738] ? cgroup_seqfile_stop+0xc0/0xc0 [ 448.908269][ T2738] vfs_write+0xc4a/0xf80 [ 448.912489][ T2738] ? slab_free_freelist_hook+0xcc/0x1a0 [ 448.918019][ T2738] ? kernel_write+0x420/0x420 [ 448.922752][ T2738] ? do_sys_openat2+0x397/0x470 [ 448.927628][ T2738] ? __kasan_check_read+0x11/0x20 [ 448.932640][ T2738] ? __fdget_pos+0x27e/0x310 [ 448.937320][ T2738] ksys_write+0x198/0x2c0 [ 448.941684][ T2738] ? __ia32_sys_read+0x90/0x90 [ 448.946524][ T2738] ? debug_smp_processor_id+0x17/0x20 [ 448.951981][ T2738] __x64_sys_write+0x7b/0x90 [ 448.956557][ T2738] do_syscall_64+0x34/0x70 [ 448.960959][ T2738] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 448.966943][ T2738] RIP: 0033:0x7f48883727a9 [ 448.971475][ T2738] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 448.991626][ T2738] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 449.000546][ T2738] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 449.008621][ T2738] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 449.016674][ T2738] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 449.024638][ T2738] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 449.032602][ T2738] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000017 [ 449.040633][ T2738] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 449.087381][ T2739] FAULT_INJECTION: forcing a failure. [ 449.087381][ T2739] name failslab, interval 1, probability 0, space 0, times 0 [ 449.100154][ T2739] CPU: 1 PID: 2739 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 449.110702][ T2739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 449.120882][ T2739] Call Trace: [ 449.124267][ T2739] dump_stack_lvl+0x1e2/0x24b [ 449.128926][ T2739] ? bfq_pos_tree_add_move+0x43e/0x43e [ 449.134595][ T2739] ? selinux_kernfs_init_security+0x1a8/0x760 [ 449.140658][ T2739] dump_stack+0x15/0x17 [ 449.144815][ T2739] should_fail+0x3c0/0x510 [ 449.149229][ T2739] ? __kernfs_new_node+0x99/0x6e0 [ 449.154240][ T2739] __should_failslab+0x9f/0xe0 [ 449.158987][ T2739] should_failslab+0x9/0x20 [ 449.163489][ T2739] __kmalloc_track_caller+0x5f/0x350 [ 449.168760][ T2739] kstrdup_const+0x55/0x90 [ 449.173594][ T2739] __kernfs_new_node+0x99/0x6e0 [ 449.178458][ T2739] ? is_module_text_address+0xe1/0x140 [ 449.184097][ T2739] ? kernfs_new_node+0x170/0x170 [ 449.189043][ T2739] ? ptr_to_hashval+0x60/0x60 [ 449.193719][ T2739] ? arch_stack_walk+0xf8/0x140 [ 449.198552][ T2739] ? snprintf+0xd6/0x120 [ 449.202790][ T2739] kernfs_new_node+0x97/0x170 [ 449.207459][ T2739] __kernfs_create_file+0x4a/0x270 [ 449.212708][ T2739] cgroup_addrm_files+0xab8/0xfe0 [ 449.217850][ T2739] ? ____kasan_kmalloc+0xdc/0x110 [ 449.222867][ T2739] ? __kasan_kmalloc+0x9/0x10 [ 449.227533][ T2739] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 449.233165][ T2739] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 449.239316][ T2739] ? delete_node+0x759/0x7b0 [ 449.243901][ T2739] ? __kasan_check_read+0x11/0x20 [ 449.249002][ T2739] ? delete_node+0x759/0x7b0 [ 449.253771][ T2739] ? __kasan_check_write+0x14/0x20 [ 449.259233][ T2739] ? idr_replace+0x1c4/0x230 [ 449.263810][ T2739] ? idr_get_next+0x4b0/0x4b0 [ 449.268491][ T2739] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 449.273601][ T2739] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 449.278809][ T2739] css_populate_dir+0x137/0x370 [ 449.283658][ T2739] cgroup_apply_control_enable+0x8b9/0x12f0 [ 449.290071][ T2739] cgroup_apply_control+0x8e/0x7e0 [ 449.295181][ T2739] ? css_next_child+0x160/0x160 [ 449.300022][ T2739] ? stack_trace_save+0x12d/0x1f0 [ 449.305170][ T2739] ? io_schedule+0x120/0x120 [ 449.309765][ T2739] ? kernfs_fop_write_iter+0x15e/0x410 [ 449.315216][ T2739] ? __kasan_check_write+0x14/0x20 [ 449.320400][ T2739] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 449.325851][ T2739] cgroup_subtree_control_write+0xd19/0x1310 [ 449.331817][ T2739] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 449.338315][ T2739] ? __kasan_check_write+0x14/0x20 [ 449.343498][ T2739] ? _copy_from_iter+0x3fb/0xd60 [ 449.348504][ T2739] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 449.354470][ T2739] cgroup_file_write+0x28e/0x590 [ 449.359390][ T2739] ? cgroup_seqfile_stop+0xc0/0xc0 [ 449.364505][ T2739] ? mutex_trylock+0x180/0x180 [ 449.369257][ T2739] ? __kasan_check_write+0x14/0x20 [ 449.374614][ T2739] kernfs_fop_write_iter+0x2d0/0x410 [ 449.379996][ T2739] ? cgroup_seqfile_stop+0xc0/0xc0 [ 449.385099][ T2739] vfs_write+0xc4a/0xf80 [ 449.389328][ T2739] ? slab_free_freelist_hook+0xcc/0x1a0 [ 449.394901][ T2739] ? kernel_write+0x420/0x420 [ 449.399572][ T2739] ? do_sys_openat2+0x397/0x470 [ 449.404580][ T2739] ? __kasan_check_read+0x11/0x20 [ 449.409583][ T2739] ? __fdget_pos+0x27e/0x310 [ 449.414150][ T2739] ksys_write+0x198/0x2c0 [ 449.418719][ T2739] ? __ia32_sys_read+0x90/0x90 [ 449.423457][ T2739] ? debug_smp_processor_id+0x17/0x20 [ 449.428840][ T2739] __x64_sys_write+0x7b/0x90 [ 449.433408][ T2739] do_syscall_64+0x34/0x70 [ 449.437800][ T2739] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 449.443668][ T2739] RIP: 0033:0x7f48883727a9 [ 449.448079][ T2739] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 449.467778][ T2739] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 449.476183][ T2739] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 449.484159][ T2739] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 449.492204][ T2739] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 449.500258][ T2739] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 449.508217][ T2739] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000018 [ 449.516620][ T2739] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 449.557279][ T2734] FAULT_INJECTION: forcing a failure. [ 449.557279][ T2734] name failslab, interval 1, probability 0, space 0, times 0 [ 449.570275][ T2734] CPU: 0 PID: 2734 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 449.580692][ T2734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 449.590831][ T2734] Call Trace: [ 449.594208][ T2734] dump_stack_lvl+0x1e2/0x24b [ 449.598869][ T2734] ? bfq_pos_tree_add_move+0x43e/0x43e [ 449.604508][ T2734] ? selinux_kernfs_init_security+0x1a8/0x760 [ 449.610559][ T2734] dump_stack+0x15/0x17 [ 449.614697][ T2734] should_fail+0x3c0/0x510 [ 449.619121][ T2734] ? __kernfs_new_node+0x99/0x6e0 [ 449.624124][ T2734] __should_failslab+0x9f/0xe0 [ 449.628887][ T2734] should_failslab+0x9/0x20 [ 449.633373][ T2734] __kmalloc_track_caller+0x5f/0x350 [ 449.638729][ T2734] kstrdup_const+0x55/0x90 [ 449.643151][ T2734] __kernfs_new_node+0x99/0x6e0 [ 449.647985][ T2734] ? is_module_text_address+0xe1/0x140 [ 449.653554][ T2734] ? kernfs_new_node+0x170/0x170 [ 449.658746][ T2734] ? ptr_to_hashval+0x60/0x60 [ 449.663589][ T2734] ? mutex_lock+0xb2/0x1e0 [ 449.668010][ T2734] ? snprintf+0xd6/0x120 [ 449.672257][ T2734] ? mutex_unlock+0x29/0xf0 [ 449.676754][ T2734] kernfs_new_node+0x97/0x170 [ 449.681431][ T2734] __kernfs_create_file+0x4a/0x270 [ 449.686813][ T2734] cgroup_addrm_files+0xab8/0xfe0 [ 449.691820][ T2734] ? ____kasan_kmalloc+0xdc/0x110 [ 449.696824][ T2734] ? __kasan_kmalloc+0x9/0x10 [ 449.701511][ T2734] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 449.707039][ T2734] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 449.713169][ T2734] ? delete_node+0x759/0x7b0 [ 449.717845][ T2734] ? __kasan_check_read+0x11/0x20 [ 449.722868][ T2734] ? idr_replace+0x1c4/0x230 [ 449.727705][ T2734] ? idr_get_next+0x4b0/0x4b0 [ 449.732368][ T2734] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 449.737398][ T2734] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 449.742596][ T2734] css_populate_dir+0x137/0x370 [ 449.747446][ T2734] cgroup_apply_control_enable+0x8b9/0x12f0 [ 449.753353][ T2734] cgroup_apply_control+0x8e/0x7e0 [ 449.758469][ T2734] ? css_next_child+0x160/0x160 [ 449.763337][ T2734] ? stack_trace_save+0x12d/0x1f0 [ 449.768362][ T2734] ? io_schedule+0x120/0x120 [ 449.772965][ T2734] ? kernfs_fop_write_iter+0x15e/0x410 [ 449.778427][ T2734] ? __kasan_check_write+0x14/0x20 [ 449.783549][ T2734] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 449.788839][ T2734] cgroup_subtree_control_write+0xd19/0x1310 [ 449.794901][ T2734] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 449.800963][ T2734] ? __kasan_check_write+0x14/0x20 [ 449.806165][ T2734] ? _copy_from_iter+0x3fb/0xd60 [ 449.811097][ T2734] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 449.817076][ T2734] cgroup_file_write+0x28e/0x590 [ 449.822007][ T2734] ? cgroup_seqfile_stop+0xc0/0xc0 [ 449.827121][ T2734] ? mutex_trylock+0x180/0x180 [ 449.831884][ T2734] ? __kasan_check_write+0x14/0x20 [ 449.837012][ T2734] kernfs_fop_write_iter+0x2d0/0x410 [ 449.842566][ T2734] ? cgroup_seqfile_stop+0xc0/0xc0 [ 449.847669][ T2734] vfs_write+0xc4a/0xf80 [ 449.851995][ T2734] ? slab_free_freelist_hook+0xcc/0x1a0 [ 449.857520][ T2734] ? kernel_write+0x420/0x420 [ 449.862202][ T2734] ? do_sys_openat2+0x397/0x470 [ 449.867067][ T2734] ? __kasan_check_read+0x11/0x20 [ 449.872089][ T2734] ? __fdget_pos+0x27e/0x310 [ 449.876668][ T2734] ksys_write+0x198/0x2c0 [ 449.880992][ T2734] ? __ia32_sys_read+0x90/0x90 [ 449.885737][ T2734] ? debug_smp_processor_id+0x17/0x20 [ 449.891092][ T2734] __x64_sys_write+0x7b/0x90 [ 449.895667][ T2734] do_syscall_64+0x34/0x70 [ 449.900091][ T2734] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 449.905962][ T2734] RIP: 0033:0x7f48883727a9 [ 449.910360][ T2734] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 449.929945][ T2734] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 449.938338][ T2734] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 449.946635][ T2734] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 449.956594][ T2734] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 449.964748][ T2734] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 449.972837][ T2734] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000e [ 449.980989][ T2734] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 450.027208][ T2740] FAULT_INJECTION: forcing a failure. [ 450.027208][ T2740] name failslab, interval 1, probability 0, space 0, times 0 [ 450.039940][ T2740] CPU: 0 PID: 2740 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 450.050342][ T2740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 450.060389][ T2740] Call Trace: [ 450.063767][ T2740] dump_stack_lvl+0x1e2/0x24b [ 450.068527][ T2740] ? bfq_pos_tree_add_move+0x43e/0x43e [ 450.074236][ T2740] ? selinux_kernfs_init_security+0x1a8/0x760 [ 450.080298][ T2740] dump_stack+0x15/0x17 [ 450.084474][ T2740] should_fail+0x3c0/0x510 [ 450.088872][ T2740] ? __kernfs_new_node+0x99/0x6e0 [ 450.093991][ T2740] __should_failslab+0x9f/0xe0 [ 450.098787][ T2740] should_failslab+0x9/0x20 [ 450.103287][ T2740] __kmalloc_track_caller+0x5f/0x350 [ 450.108573][ T2740] kstrdup_const+0x55/0x90 [ 450.112992][ T2740] __kernfs_new_node+0x99/0x6e0 [ 450.117827][ T2740] ? is_module_text_address+0xe1/0x140 [ 450.123292][ T2740] ? kernfs_new_node+0x170/0x170 [ 450.128230][ T2740] ? ptr_to_hashval+0x60/0x60 [ 450.132885][ T2740] ? mutex_lock+0xb2/0x1e0 [ 450.137297][ T2740] ? snprintf+0xd6/0x120 [ 450.141515][ T2740] ? mutex_unlock+0x29/0xf0 [ 450.146003][ T2740] kernfs_new_node+0x97/0x170 [ 450.150664][ T2740] __kernfs_create_file+0x4a/0x270 [ 450.155993][ T2740] cgroup_addrm_files+0xab8/0xfe0 [ 450.161029][ T2740] ? ____kasan_kmalloc+0xdc/0x110 [ 450.166045][ T2740] ? __kasan_kmalloc+0x9/0x10 [ 450.170715][ T2740] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 450.176253][ T2740] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 450.182392][ T2740] ? delete_node+0x759/0x7b0 [ 450.187061][ T2740] ? __kasan_check_read+0x11/0x20 [ 450.192139][ T2740] ? idr_replace+0x1c4/0x230 [ 450.196718][ T2740] ? idr_get_next+0x4b0/0x4b0 [ 450.201393][ T2740] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 450.206419][ T2740] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 450.211734][ T2740] css_populate_dir+0x137/0x370 [ 450.216574][ T2740] cgroup_apply_control_enable+0x8b9/0x12f0 [ 450.222459][ T2740] cgroup_apply_control+0x8e/0x7e0 [ 450.227721][ T2740] ? css_next_child+0x160/0x160 [ 450.232773][ T2740] ? stack_trace_save+0x12d/0x1f0 [ 450.237787][ T2740] ? io_schedule+0x120/0x120 [ 450.242454][ T2740] ? kernfs_fop_write_iter+0x15e/0x410 [ 450.248019][ T2740] ? __kasan_check_write+0x14/0x20 [ 450.253350][ T2740] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 450.258771][ T2740] cgroup_subtree_control_write+0xd19/0x1310 [ 450.264754][ T2740] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 450.270933][ T2740] ? __kasan_check_write+0x14/0x20 [ 450.276494][ T2740] ? _copy_from_iter+0x3fb/0xd60 [ 450.281437][ T2740] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 450.287488][ T2740] cgroup_file_write+0x28e/0x590 [ 450.292506][ T2740] ? cgroup_seqfile_stop+0xc0/0xc0 [ 450.297858][ T2740] ? mutex_trylock+0x180/0x180 [ 450.302601][ T2740] ? __kasan_check_write+0x14/0x20 [ 450.307811][ T2740] kernfs_fop_write_iter+0x2d0/0x410 [ 450.313088][ T2740] ? cgroup_seqfile_stop+0xc0/0xc0 [ 450.318276][ T2740] vfs_write+0xc4a/0xf80 [ 450.322498][ T2740] ? slab_free_freelist_hook+0xcc/0x1a0 [ 450.328023][ T2740] ? kernel_write+0x420/0x420 [ 450.332685][ T2740] ? do_sys_openat2+0x397/0x470 [ 450.337516][ T2740] ? __kasan_check_read+0x11/0x20 [ 450.342607][ T2740] ? __fdget_pos+0x27e/0x310 [ 450.347200][ T2740] ksys_write+0x198/0x2c0 [ 450.351535][ T2740] ? __ia32_sys_read+0x90/0x90 [ 450.356279][ T2740] ? debug_smp_processor_id+0x17/0x20 [ 450.361648][ T2740] __x64_sys_write+0x7b/0x90 [ 450.366249][ T2740] do_syscall_64+0x34/0x70 [ 450.370669][ T2740] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 450.376541][ T2740] RIP: 0033:0x7f48883727a9 [ 450.380944][ T2740] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 450.400897][ T2740] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 450.409325][ T2740] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 450.417384][ T2740] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 450.425352][ T2740] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 450.433317][ T2740] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 450.441475][ T2740] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000019 [ 450.449627][ T2740] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 450.497180][ T2728] FAULT_INJECTION: forcing a failure. [ 450.497180][ T2728] name failslab, interval 1, probability 0, space 0, times 0 [ 450.510098][ T2728] CPU: 1 PID: 2728 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 450.520970][ T2728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 450.531112][ T2728] Call Trace: [ 450.534420][ T2728] dump_stack_lvl+0x1e2/0x24b [ 450.539196][ T2728] ? bfq_pos_tree_add_move+0x43e/0x43e [ 450.544657][ T2728] ? selinux_kernfs_init_security+0x1a8/0x760 [ 450.550704][ T2728] dump_stack+0x15/0x17 [ 450.554844][ T2728] should_fail+0x3c0/0x510 [ 450.559268][ T2728] ? __kernfs_new_node+0x99/0x6e0 [ 450.564275][ T2728] __should_failslab+0x9f/0xe0 [ 450.569110][ T2728] should_failslab+0x9/0x20 [ 450.573601][ T2728] __kmalloc_track_caller+0x5f/0x350 [ 450.579049][ T2728] kstrdup_const+0x55/0x90 [ 450.583539][ T2728] __kernfs_new_node+0x99/0x6e0 [ 450.588545][ T2728] ? is_module_text_address+0xe1/0x140 [ 450.593990][ T2728] ? kernfs_new_node+0x170/0x170 [ 450.599021][ T2728] ? ptr_to_hashval+0x60/0x60 [ 450.603699][ T2728] ? mutex_lock+0xb2/0x1e0 [ 450.608119][ T2728] ? snprintf+0xd6/0x120 [ 450.612348][ T2728] ? mutex_unlock+0x29/0xf0 [ 450.616844][ T2728] kernfs_new_node+0x97/0x170 [ 450.621624][ T2728] __kernfs_create_file+0x4a/0x270 [ 450.626728][ T2728] cgroup_addrm_files+0xab8/0xfe0 [ 450.631849][ T2728] ? ____kasan_kmalloc+0xdc/0x110 [ 450.637076][ T2728] ? __kasan_kmalloc+0x9/0x10 [ 450.641833][ T2728] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 450.647371][ T2728] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 450.653690][ T2728] ? delete_node+0x759/0x7b0 [ 450.658439][ T2728] ? __kasan_check_read+0x11/0x20 [ 450.663445][ T2728] ? idr_replace+0x1c4/0x230 [ 450.668025][ T2728] ? idr_get_next+0x4b0/0x4b0 [ 450.672849][ T2728] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 450.677855][ T2728] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 450.683039][ T2728] css_populate_dir+0x137/0x370 [ 450.687983][ T2728] cgroup_apply_control_enable+0x8b9/0x12f0 [ 450.693949][ T2728] cgroup_apply_control+0x8e/0x7e0 [ 450.699045][ T2728] ? css_next_child+0x160/0x160 [ 450.703963][ T2728] ? stack_trace_save+0x12d/0x1f0 [ 450.708971][ T2728] ? io_schedule+0x120/0x120 [ 450.713541][ T2728] ? kernfs_fop_write_iter+0x15e/0x410 [ 450.719185][ T2728] ? __kasan_check_write+0x14/0x20 [ 450.724363][ T2728] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 450.729757][ T2728] cgroup_subtree_control_write+0xd19/0x1310 [ 450.735726][ T2728] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 450.741775][ T2728] ? __kasan_check_write+0x14/0x20 [ 450.746865][ T2728] ? _copy_from_iter+0x3fb/0xd60 [ 450.751913][ T2728] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 450.757883][ T2728] cgroup_file_write+0x28e/0x590 [ 450.762835][ T2728] ? cgroup_seqfile_stop+0xc0/0xc0 [ 450.768019][ T2728] ? mutex_trylock+0x180/0x180 [ 450.772768][ T2728] ? __kasan_check_write+0x14/0x20 [ 450.777872][ T2728] kernfs_fop_write_iter+0x2d0/0x410 [ 450.783138][ T2728] ? cgroup_seqfile_stop+0xc0/0xc0 [ 450.788240][ T2728] vfs_write+0xc4a/0xf80 [ 450.792485][ T2728] ? slab_free_freelist_hook+0xcc/0x1a0 [ 450.798166][ T2728] ? kernel_write+0x420/0x420 [ 450.802843][ T2728] ? do_sys_openat2+0x397/0x470 [ 450.807682][ T2728] ? __kasan_check_read+0x11/0x20 [ 450.812800][ T2728] ? __fdget_pos+0x27e/0x310 [ 450.817401][ T2728] ksys_write+0x198/0x2c0 [ 450.821722][ T2728] ? __ia32_sys_read+0x90/0x90 [ 450.826464][ T2728] ? debug_smp_processor_id+0x17/0x20 [ 450.831831][ T2728] __x64_sys_write+0x7b/0x90 [ 450.836490][ T2728] do_syscall_64+0x34/0x70 [ 450.840890][ T2728] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 450.846778][ T2728] RIP: 0033:0x7f48883727a9 [ 450.851273][ T2728] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 450.871361][ T2728] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 450.880108][ T2728] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 450.888083][ T2728] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 450.896079][ T2728] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 450.904248][ T2728] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 450.912425][ T2728] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000011 [ 450.920549][ T2728] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 450.957340][ T2737] FAULT_INJECTION: forcing a failure. [ 450.957340][ T2737] name failslab, interval 1, probability 0, space 0, times 0 [ 450.973120][ T2737] CPU: 0 PID: 2737 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 450.984597][ T2737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 450.994635][ T2737] Call Trace: [ 450.997922][ T2737] dump_stack_lvl+0x1e2/0x24b [ 451.002678][ T2737] ? panic+0x7d7/0x7d7 [ 451.006726][ T2737] ? bfq_pos_tree_add_move+0x43e/0x43e [ 451.012511][ T2737] ? selinux_kernfs_init_security+0x1a8/0x760 [ 451.018570][ T2737] dump_stack+0x15/0x17 [ 451.022745][ T2737] should_fail+0x3c0/0x510 [ 451.027176][ T2737] __should_failslab+0x9f/0xe0 [ 451.031948][ T2737] should_failslab+0x9/0x20 [ 451.036450][ T2737] kmem_cache_alloc+0x3f/0x300 [ 451.041199][ T2737] ? __kernfs_new_node+0xdb/0x6e0 [ 451.046198][ T2737] __kernfs_new_node+0xdb/0x6e0 [ 451.051027][ T2737] ? is_module_text_address+0xe1/0x140 [ 451.056548][ T2737] ? kernfs_new_node+0x170/0x170 [ 451.061463][ T2737] ? ptr_to_hashval+0x60/0x60 [ 451.066117][ T2737] ? arch_stack_walk+0xf8/0x140 [ 451.070964][ T2737] ? snprintf+0xd6/0x120 [ 451.075182][ T2737] kernfs_new_node+0x97/0x170 [ 451.079838][ T2737] __kernfs_create_file+0x4a/0x270 [ 451.085030][ T2737] cgroup_addrm_files+0xab8/0xfe0 [ 451.090038][ T2737] ? ____kasan_kmalloc+0xdc/0x110 [ 451.095037][ T2737] ? __kasan_kmalloc+0x9/0x10 [ 451.099780][ T2737] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 451.105305][ T2737] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 451.111432][ T2737] ? delete_node+0x759/0x7b0 [ 451.115998][ T2737] ? __kasan_check_read+0x11/0x20 [ 451.120998][ T2737] ? delete_node+0x759/0x7b0 [ 451.125568][ T2737] ? __kasan_check_write+0x14/0x20 [ 451.130744][ T2737] ? idr_replace+0x1c4/0x230 [ 451.135332][ T2737] ? idr_get_next+0x4b0/0x4b0 [ 451.139982][ T2737] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 451.144979][ T2737] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 451.150168][ T2737] css_populate_dir+0x137/0x370 [ 451.154997][ T2737] cgroup_apply_control_enable+0x8b9/0x12f0 [ 451.160957][ T2737] cgroup_apply_control+0x8e/0x7e0 [ 451.166044][ T2737] ? css_next_child+0x160/0x160 [ 451.170871][ T2737] ? stack_trace_save+0x12d/0x1f0 [ 451.175956][ T2737] ? io_schedule+0x120/0x120 [ 451.180533][ T2737] ? kernfs_fop_write_iter+0x15e/0x410 [ 451.185969][ T2737] ? __kasan_check_write+0x14/0x20 [ 451.191059][ T2737] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 451.196323][ T2737] cgroup_subtree_control_write+0xd19/0x1310 [ 451.202279][ T2737] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 451.208236][ T2737] ? __kasan_check_write+0x14/0x20 [ 451.213327][ T2737] ? _copy_from_iter+0x3fb/0xd60 [ 451.218240][ T2737] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 451.224193][ T2737] cgroup_file_write+0x28e/0x590 [ 451.229194][ T2737] ? cgroup_seqfile_stop+0xc0/0xc0 [ 451.234294][ T2737] ? mutex_trylock+0x180/0x180 [ 451.239045][ T2737] ? __kasan_check_write+0x14/0x20 [ 451.244130][ T2737] kernfs_fop_write_iter+0x2d0/0x410 [ 451.249650][ T2737] ? cgroup_seqfile_stop+0xc0/0xc0 [ 451.254822][ T2737] vfs_write+0xc4a/0xf80 [ 451.259040][ T2737] ? slab_free_freelist_hook+0xcc/0x1a0 [ 451.264573][ T2737] ? kernel_write+0x420/0x420 [ 451.269555][ T2737] ? do_sys_openat2+0x397/0x470 [ 451.274579][ T2737] ? __kasan_check_read+0x11/0x20 [ 451.279937][ T2737] ? __fdget_pos+0x27e/0x310 [ 451.284592][ T2737] ksys_write+0x198/0x2c0 [ 451.288900][ T2737] ? __ia32_sys_read+0x90/0x90 [ 451.293691][ T2737] ? debug_smp_processor_id+0x17/0x20 [ 451.299244][ T2737] __x64_sys_write+0x7b/0x90 [ 451.303865][ T2737] do_syscall_64+0x34/0x70 [ 451.308375][ T2737] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 451.314258][ T2737] RIP: 0033:0x7f48883727a9 [ 451.318669][ T2737] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 451.338349][ T2737] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 451.346848][ T2737] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 451.354824][ T2737] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 451.362887][ T2737] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 451.370870][ T2737] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 451.378836][ T2737] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000012 [ 451.387229][ T2737] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 451.427222][ T2744] FAULT_INJECTION: forcing a failure. [ 451.427222][ T2744] name failslab, interval 1, probability 0, space 0, times 0 [ 451.440138][ T2744] CPU: 0 PID: 2744 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 451.450790][ T2744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 451.460828][ T2744] Call Trace: [ 451.464273][ T2744] dump_stack_lvl+0x1e2/0x24b [ 451.468950][ T2744] ? bfq_pos_tree_add_move+0x43e/0x43e [ 451.474411][ T2744] ? selinux_kernfs_init_security+0x1a8/0x760 [ 451.480556][ T2744] dump_stack+0x15/0x17 [ 451.484727][ T2744] should_fail+0x3c0/0x510 [ 451.489138][ T2744] ? __kernfs_new_node+0x99/0x6e0 [ 451.494141][ T2744] __should_failslab+0x9f/0xe0 [ 451.499097][ T2744] should_failslab+0x9/0x20 [ 451.503654][ T2744] __kmalloc_track_caller+0x5f/0x350 [ 451.509031][ T2744] kstrdup_const+0x55/0x90 [ 451.513558][ T2744] __kernfs_new_node+0x99/0x6e0 [ 451.518402][ T2744] ? is_module_text_address+0xe1/0x140 [ 451.523854][ T2744] ? kernfs_new_node+0x170/0x170 [ 451.529134][ T2744] ? ptr_to_hashval+0x60/0x60 [ 451.533826][ T2744] ? mutex_lock+0xb2/0x1e0 [ 451.538322][ T2744] ? snprintf+0xd6/0x120 [ 451.542583][ T2744] ? mutex_unlock+0x29/0xf0 [ 451.547077][ T2744] kernfs_new_node+0x97/0x170 [ 451.551771][ T2744] __kernfs_create_file+0x4a/0x270 [ 451.556891][ T2744] cgroup_addrm_files+0xab8/0xfe0 [ 451.561898][ T2744] ? ____kasan_kmalloc+0xdc/0x110 [ 451.566925][ T2744] ? __kasan_kmalloc+0x9/0x10 [ 451.571599][ T2744] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 451.577125][ T2744] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 451.583249][ T2744] ? delete_node+0x759/0x7b0 [ 451.587816][ T2744] ? __kasan_check_read+0x11/0x20 [ 451.592838][ T2744] ? idr_replace+0x1c4/0x230 [ 451.597947][ T2744] ? idr_get_next+0x4b0/0x4b0 [ 451.602690][ T2744] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 451.607726][ T2744] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 451.612918][ T2744] css_populate_dir+0x137/0x370 [ 451.617762][ T2744] cgroup_apply_control_enable+0x8b9/0x12f0 [ 451.623778][ T2744] cgroup_apply_control+0x8e/0x7e0 [ 451.628883][ T2744] ? css_next_child+0x160/0x160 [ 451.633845][ T2744] ? stack_trace_save+0x12d/0x1f0 [ 451.638916][ T2744] ? io_schedule+0x120/0x120 [ 451.643490][ T2744] ? kernfs_fop_write_iter+0x15e/0x410 [ 451.648950][ T2744] ? __kasan_check_write+0x14/0x20 [ 451.654040][ T2744] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 451.659330][ T2744] cgroup_subtree_control_write+0xd19/0x1310 [ 451.665290][ T2744] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 451.671343][ T2744] ? __kasan_check_write+0x14/0x20 [ 451.676443][ T2744] ? _copy_from_iter+0x3fb/0xd60 [ 451.681363][ T2744] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 451.687313][ T2744] cgroup_file_write+0x28e/0x590 [ 451.692221][ T2744] ? cgroup_seqfile_stop+0xc0/0xc0 [ 451.697306][ T2744] ? mutex_trylock+0x180/0x180 [ 451.702074][ T2744] ? __kasan_check_write+0x14/0x20 [ 451.707161][ T2744] kernfs_fop_write_iter+0x2d0/0x410 [ 451.712420][ T2744] ? cgroup_seqfile_stop+0xc0/0xc0 [ 451.717537][ T2744] vfs_write+0xc4a/0xf80 [ 451.721921][ T2744] ? slab_free_freelist_hook+0xcc/0x1a0 [ 451.727573][ T2744] ? kernel_write+0x420/0x420 [ 451.732250][ T2744] ? do_sys_openat2+0x397/0x470 [ 451.737083][ T2744] ? __kasan_check_read+0x11/0x20 [ 451.742089][ T2744] ? __fdget_pos+0x27e/0x310 [ 451.746656][ T2744] ksys_write+0x198/0x2c0 [ 451.750992][ T2744] ? __ia32_sys_read+0x90/0x90 [ 451.755753][ T2744] ? debug_smp_processor_id+0x17/0x20 [ 451.761371][ T2744] __x64_sys_write+0x7b/0x90 [ 451.766029][ T2744] do_syscall_64+0x34/0x70 [ 451.770456][ T2744] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 451.776332][ T2744] RIP: 0033:0x7f48883727a9 [ 451.780732][ T2744] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 451.800714][ T2744] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 451.809575][ T2744] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 451.817550][ T2744] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 451.825604][ T2744] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 451.833699][ T2744] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 451.841870][ T2744] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000013 [ 451.850381][ T2744] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 451.897151][ T2743] FAULT_INJECTION: forcing a failure. [ 451.897151][ T2743] name failslab, interval 1, probability 0, space 0, times 0 [ 451.910014][ T2743] CPU: 1 PID: 2743 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 451.920532][ T2743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 451.930678][ T2743] Call Trace: [ 451.934087][ T2743] dump_stack_lvl+0x1e2/0x24b [ 451.938945][ T2743] ? panic+0x7d7/0x7d7 [ 451.943004][ T2743] ? bfq_pos_tree_add_move+0x43e/0x43e [ 451.948466][ T2743] ? selinux_kernfs_init_security+0x1a8/0x760 [ 451.954771][ T2743] ? ___slab_alloc+0xa9/0x2e0 [ 451.959458][ T2743] dump_stack+0x15/0x17 [ 451.963688][ T2743] should_fail+0x3c0/0x510 [ 451.968109][ T2743] __should_failslab+0x9f/0xe0 [ 451.972960][ T2743] should_failslab+0x9/0x20 [ 451.977725][ T2743] kmem_cache_alloc+0x3f/0x300 [ 451.982665][ T2743] ? __kernfs_new_node+0xdb/0x6e0 [ 451.987677][ T2743] __kernfs_new_node+0xdb/0x6e0 [ 451.992514][ T2743] ? is_module_text_address+0xe1/0x140 [ 451.998164][ T2743] ? kernfs_new_node+0x170/0x170 [ 452.003085][ T2743] ? ptr_to_hashval+0x60/0x60 [ 452.007768][ T2743] ? arch_stack_walk+0xf8/0x140 [ 452.012762][ T2743] ? snprintf+0xd6/0x120 [ 452.017004][ T2743] kernfs_new_node+0x97/0x170 [ 452.021774][ T2743] __kernfs_create_file+0x4a/0x270 [ 452.026914][ T2743] cgroup_addrm_files+0xab8/0xfe0 [ 452.032066][ T2743] ? ____kasan_kmalloc+0xdc/0x110 [ 452.037081][ T2743] ? __kasan_kmalloc+0x9/0x10 [ 452.041944][ T2743] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 452.047563][ T2743] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 452.053809][ T2743] ? delete_node+0x759/0x7b0 [ 452.058484][ T2743] ? __kasan_check_read+0x11/0x20 [ 452.063591][ T2743] ? delete_node+0x759/0x7b0 [ 452.068167][ T2743] ? __kasan_check_write+0x14/0x20 [ 452.073290][ T2743] ? idr_replace+0x1c4/0x230 [ 452.077991][ T2743] ? idr_get_next+0x4b0/0x4b0 [ 452.082674][ T2743] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 452.087799][ T2743] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 452.093005][ T2743] css_populate_dir+0x137/0x370 [ 452.097944][ T2743] cgroup_apply_control_enable+0x8b9/0x12f0 [ 452.103835][ T2743] cgroup_apply_control+0x8e/0x7e0 [ 452.109029][ T2743] ? css_next_child+0x160/0x160 [ 452.113866][ T2743] ? stack_trace_save+0x12d/0x1f0 [ 452.118961][ T2743] ? io_schedule+0x120/0x120 [ 452.123535][ T2743] ? kernfs_fop_write_iter+0x15e/0x410 [ 452.128978][ T2743] ? __kasan_check_write+0x14/0x20 [ 452.134092][ T2743] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 452.139628][ T2743] cgroup_subtree_control_write+0xd19/0x1310 [ 452.145617][ T2743] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 452.151595][ T2743] ? __kasan_check_write+0x14/0x20 [ 452.156700][ T2743] ? _copy_from_iter+0x3fb/0xd60 [ 452.161639][ T2743] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 452.167619][ T2743] cgroup_file_write+0x28e/0x590 [ 452.172597][ T2743] ? cgroup_seqfile_stop+0xc0/0xc0 [ 452.177809][ T2743] ? mutex_trylock+0x180/0x180 [ 452.182573][ T2743] ? __kasan_check_write+0x14/0x20 [ 452.187685][ T2743] kernfs_fop_write_iter+0x2d0/0x410 [ 452.192957][ T2743] ? cgroup_seqfile_stop+0xc0/0xc0 [ 452.198154][ T2743] vfs_write+0xc4a/0xf80 [ 452.202405][ T2743] ? slab_free_freelist_hook+0xcc/0x1a0 [ 452.207955][ T2743] ? kernel_write+0x420/0x420 [ 452.212639][ T2743] ? do_sys_openat2+0x397/0x470 [ 452.217476][ T2743] ? __kasan_check_read+0x11/0x20 [ 452.222498][ T2743] ? __fdget_pos+0x27e/0x310 [ 452.227249][ T2743] ksys_write+0x198/0x2c0 [ 452.231664][ T2743] ? __ia32_sys_read+0x90/0x90 [ 452.236430][ T2743] ? debug_smp_processor_id+0x17/0x20 [ 452.241802][ T2743] __x64_sys_write+0x7b/0x90 [ 452.246395][ T2743] do_syscall_64+0x34/0x70 [ 452.250797][ T2743] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 452.256673][ T2743] RIP: 0033:0x7f48883727a9 [ 452.261107][ T2743] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 452.282091][ T2743] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 452.290972][ T2743] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 452.299105][ T2743] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 452.307071][ T2743] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 452.315249][ T2743] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 452.323482][ T2743] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000012 [ 452.331976][ T2743] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 452.377112][ T2729] FAULT_INJECTION: forcing a failure. [ 452.377112][ T2729] name failslab, interval 1, probability 0, space 0, times 0 [ 452.390275][ T2729] CPU: 0 PID: 2729 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 452.400779][ T2729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 452.410972][ T2729] Call Trace: [ 452.414356][ T2729] dump_stack_lvl+0x1e2/0x24b [ 452.419046][ T2729] ? bfq_pos_tree_add_move+0x43e/0x43e [ 452.424601][ T2729] ? format_decode+0x2ec/0x1a50 [ 452.429459][ T2729] ? format_decode+0x652/0x1a50 [ 452.434293][ T2729] dump_stack+0x15/0x17 [ 452.438437][ T2729] should_fail+0x3c0/0x510 [ 452.445270][ T2729] ? __kernfs_new_node+0x99/0x6e0 [ 452.450274][ T2729] __should_failslab+0x9f/0xe0 [ 452.455116][ T2729] should_failslab+0x9/0x20 [ 452.459627][ T2729] __kmalloc_track_caller+0x5f/0x350 [ 452.464892][ T2729] kstrdup_const+0x55/0x90 [ 452.469306][ T2729] __kernfs_new_node+0x99/0x6e0 [ 452.474166][ T2729] ? is_module_text_address+0xe1/0x140 [ 452.479636][ T2729] ? kernfs_new_node+0x170/0x170 [ 452.484580][ T2729] ? ptr_to_hashval+0x60/0x60 [ 452.489254][ T2729] ? mutex_lock+0xb2/0x1e0 [ 452.493776][ T2729] ? snprintf+0xd6/0x120 [ 452.498014][ T2729] ? mutex_unlock+0x29/0xf0 [ 452.502610][ T2729] kernfs_new_node+0x97/0x170 [ 452.507292][ T2729] __kernfs_create_file+0x4a/0x270 [ 452.512496][ T2729] cgroup_addrm_files+0xab8/0xfe0 [ 452.517541][ T2729] ? ____kasan_kmalloc+0xdc/0x110 [ 452.522578][ T2729] ? __kasan_kmalloc+0x9/0x10 [ 452.527266][ T2729] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 452.532894][ T2729] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 452.539213][ T2729] ? delete_node+0x759/0x7b0 [ 452.543801][ T2729] ? __kasan_check_read+0x11/0x20 [ 452.548832][ T2729] ? idr_replace+0x1c4/0x230 [ 452.553414][ T2729] ? idr_get_next+0x4b0/0x4b0 [ 452.558072][ T2729] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 452.563086][ T2729] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 452.568271][ T2729] css_populate_dir+0x137/0x370 [ 452.573122][ T2729] cgroup_apply_control_enable+0x8b9/0x12f0 [ 452.579239][ T2729] cgroup_apply_control+0x8e/0x7e0 [ 452.584383][ T2729] ? css_next_child+0x160/0x160 [ 452.589248][ T2729] ? stack_trace_save+0x12d/0x1f0 [ 452.594256][ T2729] ? io_schedule+0x120/0x120 [ 452.598829][ T2729] ? kernfs_fop_write_iter+0x15e/0x410 [ 452.604286][ T2729] ? __kasan_check_write+0x14/0x20 [ 452.609391][ T2729] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 452.614672][ T2729] cgroup_subtree_control_write+0xd19/0x1310 [ 452.620875][ T2729] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 452.626856][ T2729] ? __kasan_check_write+0x14/0x20 [ 452.632128][ T2729] ? _copy_from_iter+0x3fb/0xd60 [ 452.637069][ T2729] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 452.643140][ T2729] cgroup_file_write+0x28e/0x590 [ 452.648153][ T2729] ? cgroup_seqfile_stop+0xc0/0xc0 [ 452.653267][ T2729] ? mutex_trylock+0x180/0x180 [ 452.658156][ T2729] ? __kasan_check_write+0x14/0x20 [ 452.663385][ T2729] kernfs_fop_write_iter+0x2d0/0x410 [ 452.668676][ T2729] ? cgroup_seqfile_stop+0xc0/0xc0 [ 452.673987][ T2729] vfs_write+0xc4a/0xf80 [ 452.678256][ T2729] ? slab_free_freelist_hook+0xcc/0x1a0 [ 452.683933][ T2729] ? kernel_write+0x420/0x420 [ 452.688603][ T2729] ? do_sys_openat2+0x397/0x470 [ 452.693442][ T2729] ? __kasan_check_read+0x11/0x20 [ 452.698593][ T2729] ? __fdget_pos+0x27e/0x310 [ 452.703174][ T2729] ksys_write+0x198/0x2c0 [ 452.707584][ T2729] ? __ia32_sys_read+0x90/0x90 [ 452.712333][ T2729] ? debug_smp_processor_id+0x17/0x20 [ 452.717689][ T2729] __x64_sys_write+0x7b/0x90 [ 452.722377][ T2729] do_syscall_64+0x34/0x70 [ 452.726807][ T2729] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 452.732701][ T2729] RIP: 0033:0x7f48883727a9 [ 452.737099][ T2729] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 452.757495][ T2729] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 452.766565][ T2729] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 452.774901][ T2729] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 452.783410][ T2729] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 452.791816][ T2729] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 452.799895][ T2729] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000b [ 452.808494][ T2729] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 452.837336][ T2747] FAULT_INJECTION: forcing a failure. [ 452.837336][ T2747] name failslab, interval 1, probability 0, space 0, times 0 [ 452.850219][ T2747] CPU: 1 PID: 2747 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 452.862109][ T2747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 452.872611][ T2747] Call Trace: [ 452.876096][ T2747] dump_stack_lvl+0x1e2/0x24b [ 452.880773][ T2747] ? bfq_pos_tree_add_move+0x43e/0x43e [ 452.886487][ T2747] ? selinux_kernfs_init_security+0x1a8/0x760 [ 452.892562][ T2747] dump_stack+0x15/0x17 [ 452.896794][ T2747] should_fail+0x3c0/0x510 [ 452.901199][ T2747] ? __kernfs_new_node+0x99/0x6e0 [ 452.906285][ T2747] __should_failslab+0x9f/0xe0 [ 452.911036][ T2747] should_failslab+0x9/0x20 [ 452.915516][ T2747] __kmalloc_track_caller+0x5f/0x350 [ 452.920863][ T2747] kstrdup_const+0x55/0x90 [ 452.925965][ T2747] __kernfs_new_node+0x99/0x6e0 [ 452.930916][ T2747] ? is_module_text_address+0xe1/0x140 [ 452.936359][ T2747] ? kernfs_new_node+0x170/0x170 [ 452.941312][ T2747] ? ptr_to_hashval+0x60/0x60 [ 452.945988][ T2747] ? mutex_lock+0xb2/0x1e0 [ 452.950389][ T2747] ? snprintf+0xd6/0x120 [ 452.954609][ T2747] ? mutex_unlock+0x29/0xf0 [ 452.959091][ T2747] kernfs_new_node+0x97/0x170 [ 452.963746][ T2747] __kernfs_create_file+0x4a/0x270 [ 452.968839][ T2747] cgroup_addrm_files+0xab8/0xfe0 [ 452.973861][ T2747] ? ____kasan_kmalloc+0xdc/0x110 [ 452.978883][ T2747] ? __kasan_kmalloc+0x9/0x10 [ 452.983548][ T2747] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 452.989080][ T2747] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 452.995458][ T2747] ? delete_node+0x759/0x7b0 [ 453.000039][ T2747] ? __kasan_check_read+0x11/0x20 [ 453.005137][ T2747] ? idr_replace+0x1c4/0x230 [ 453.009724][ T2747] ? idr_get_next+0x4b0/0x4b0 [ 453.014383][ T2747] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 453.019498][ T2747] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 453.024674][ T2747] css_populate_dir+0x137/0x370 [ 453.029695][ T2747] cgroup_apply_control_enable+0x8b9/0x12f0 [ 453.035578][ T2747] cgroup_apply_control+0x8e/0x7e0 [ 453.040682][ T2747] ? css_next_child+0x160/0x160 [ 453.045516][ T2747] ? stack_trace_save+0x12d/0x1f0 [ 453.050532][ T2747] ? io_schedule+0x120/0x120 [ 453.055194][ T2747] ? kernfs_fop_write_iter+0x15e/0x410 [ 453.060632][ T2747] ? __kasan_check_write+0x14/0x20 [ 453.065724][ T2747] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 453.070987][ T2747] cgroup_subtree_control_write+0xd19/0x1310 [ 453.077033][ T2747] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 453.083462][ T2747] ? __kasan_check_write+0x14/0x20 [ 453.088932][ T2747] ? _copy_from_iter+0x3fb/0xd60 [ 453.094119][ T2747] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 453.100090][ T2747] cgroup_file_write+0x28e/0x590 [ 453.105003][ T2747] ? cgroup_seqfile_stop+0xc0/0xc0 [ 453.110339][ T2747] ? mutex_trylock+0x180/0x180 [ 453.116225][ T2747] ? __kasan_check_write+0x14/0x20 [ 453.121875][ T2747] kernfs_fop_write_iter+0x2d0/0x410 [ 453.129890][ T2747] ? cgroup_seqfile_stop+0xc0/0xc0 [ 453.135930][ T2747] vfs_write+0xc4a/0xf80 [ 453.140359][ T2747] ? slab_free_freelist_hook+0xcc/0x1a0 [ 453.146090][ T2747] ? kernel_write+0x420/0x420 [ 453.151172][ T2747] ? do_sys_openat2+0x397/0x470 [ 453.156050][ T2747] ? __kasan_check_read+0x11/0x20 [ 453.161229][ T2747] ? __fdget_pos+0x27e/0x310 [ 453.166461][ T2747] ksys_write+0x198/0x2c0 [ 453.170788][ T2747] ? __ia32_sys_read+0x90/0x90 [ 453.175744][ T2747] ? debug_smp_processor_id+0x17/0x20 [ 453.181291][ T2747] __x64_sys_write+0x7b/0x90 [ 453.186084][ T2747] do_syscall_64+0x34/0x70 [ 453.190515][ T2747] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 453.196492][ T2747] RIP: 0033:0x7f48883727a9 [ 453.200895][ T2747] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 453.220661][ T2747] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 453.229680][ T2747] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 453.237644][ T2747] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 453.245593][ T2747] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 453.253546][ T2747] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 453.261496][ T2747] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000c [ 453.270571][ T2747] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 453.307419][ T2742] FAULT_INJECTION: forcing a failure. [ 453.307419][ T2742] name failslab, interval 1, probability 0, space 0, times 0 [ 453.320220][ T2742] CPU: 0 PID: 2742 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 453.330635][ T2742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 453.340690][ T2742] Call Trace: [ 453.343976][ T2742] dump_stack_lvl+0x1e2/0x24b [ 453.348733][ T2742] ? bfq_pos_tree_add_move+0x43e/0x43e [ 453.354206][ T2742] ? selinux_kernfs_init_security+0x1a8/0x760 [ 453.360361][ T2742] dump_stack+0x15/0x17 [ 453.364518][ T2742] should_fail+0x3c0/0x510 [ 453.369160][ T2742] ? __kernfs_new_node+0x99/0x6e0 [ 453.374351][ T2742] __should_failslab+0x9f/0xe0 [ 453.379399][ T2742] should_failslab+0x9/0x20 [ 453.383894][ T2742] __kmalloc_track_caller+0x5f/0x350 [ 453.389388][ T2742] kstrdup_const+0x55/0x90 [ 453.393897][ T2742] __kernfs_new_node+0x99/0x6e0 [ 453.398751][ T2742] ? is_module_text_address+0xe1/0x140 [ 453.404224][ T2742] ? kernfs_new_node+0x170/0x170 [ 453.409480][ T2742] ? ptr_to_hashval+0x60/0x60 [ 453.414146][ T2742] ? mutex_lock+0xb2/0x1e0 [ 453.418558][ T2742] ? snprintf+0xd6/0x120 [ 453.422904][ T2742] ? mutex_unlock+0x29/0xf0 [ 453.427515][ T2742] kernfs_new_node+0x97/0x170 [ 453.432293][ T2742] __kernfs_create_file+0x4a/0x270 [ 453.437409][ T2742] cgroup_addrm_files+0xab8/0xfe0 [ 453.442451][ T2742] ? ____kasan_kmalloc+0xdc/0x110 [ 453.447633][ T2742] ? __kasan_kmalloc+0x9/0x10 [ 453.452296][ T2742] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 453.457826][ T2742] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 453.464047][ T2742] ? delete_node+0x759/0x7b0 [ 453.468967][ T2742] ? __kasan_check_read+0x11/0x20 [ 453.474518][ T2742] ? idr_replace+0x1c4/0x230 [ 453.479114][ T2742] ? idr_get_next+0x4b0/0x4b0 [ 453.483775][ T2742] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 453.489053][ T2742] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 453.494352][ T2742] css_populate_dir+0x137/0x370 [ 453.499297][ T2742] cgroup_apply_control_enable+0x8b9/0x12f0 [ 453.505283][ T2742] cgroup_apply_control+0x8e/0x7e0 [ 453.510517][ T2742] ? css_next_child+0x160/0x160 [ 453.515582][ T2742] ? stack_trace_save+0x12d/0x1f0 [ 453.520961][ T2742] ? io_schedule+0x120/0x120 [ 453.525562][ T2742] ? kernfs_fop_write_iter+0x15e/0x410 [ 453.531059][ T2742] ? __kasan_check_write+0x14/0x20 [ 453.536181][ T2742] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 453.541546][ T2742] cgroup_subtree_control_write+0xd19/0x1310 [ 453.547614][ T2742] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 453.553825][ T2742] ? __kasan_check_write+0x14/0x20 [ 453.559025][ T2742] ? _copy_from_iter+0x3fb/0xd60 [ 453.564036][ T2742] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 453.570024][ T2742] cgroup_file_write+0x28e/0x590 [ 453.575033][ T2742] ? cgroup_seqfile_stop+0xc0/0xc0 [ 453.580125][ T2742] ? mutex_trylock+0x180/0x180 [ 453.584879][ T2742] ? __kasan_check_write+0x14/0x20 [ 453.589993][ T2742] kernfs_fop_write_iter+0x2d0/0x410 [ 453.595261][ T2742] ? cgroup_seqfile_stop+0xc0/0xc0 [ 453.600469][ T2742] vfs_write+0xc4a/0xf80 [ 453.604804][ T2742] ? slab_free_freelist_hook+0xcc/0x1a0 [ 453.610463][ T2742] ? kernel_write+0x420/0x420 [ 453.615126][ T2742] ? do_sys_openat2+0x397/0x470 [ 453.619960][ T2742] ? __kasan_check_read+0x11/0x20 [ 453.625053][ T2742] ? __fdget_pos+0x27e/0x310 [ 453.629623][ T2742] ksys_write+0x198/0x2c0 [ 453.633930][ T2742] ? __ia32_sys_read+0x90/0x90 [ 453.638673][ T2742] ? debug_smp_processor_id+0x17/0x20 [ 453.644019][ T2742] __x64_sys_write+0x7b/0x90 [ 453.648588][ T2742] do_syscall_64+0x34/0x70 [ 453.652987][ T2742] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 453.658859][ T2742] RIP: 0033:0x7f48883727a9 [ 453.663258][ T2742] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 453.683015][ T2742] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 453.691411][ T2742] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 453.699536][ T2742] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 453.707619][ T2742] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 453.715870][ T2742] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 453.724111][ T2742] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001a [ 453.732921][ T2742] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 453.777294][ T2741] FAULT_INJECTION: forcing a failure. [ 453.777294][ T2741] name failslab, interval 1, probability 0, space 0, times 0 [ 453.790289][ T2741] CPU: 0 PID: 2741 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 453.800958][ T2741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 453.811279][ T2741] Call Trace: [ 453.814704][ T2741] dump_stack_lvl+0x1e2/0x24b [ 453.819370][ T2741] ? panic+0x7d7/0x7d7 [ 453.823887][ T2741] ? bfq_pos_tree_add_move+0x43e/0x43e [ 453.829336][ T2741] ? selinux_kernfs_init_security+0x1a8/0x760 [ 453.835502][ T2741] dump_stack+0x15/0x17 [ 453.839753][ T2741] should_fail+0x3c0/0x510 [ 453.844172][ T2741] __should_failslab+0x9f/0xe0 [ 453.848961][ T2741] should_failslab+0x9/0x20 [ 453.853558][ T2741] kmem_cache_alloc+0x3f/0x300 [ 453.858321][ T2741] ? __kernfs_new_node+0xdb/0x6e0 [ 453.863907][ T2741] __kernfs_new_node+0xdb/0x6e0 [ 453.868877][ T2741] ? is_module_text_address+0xe1/0x140 [ 453.874357][ T2741] ? kernfs_new_node+0x170/0x170 [ 453.879316][ T2741] ? ptr_to_hashval+0x60/0x60 [ 453.884094][ T2741] ? arch_stack_walk+0xf8/0x140 [ 453.889032][ T2741] ? snprintf+0xd6/0x120 [ 453.893271][ T2741] kernfs_new_node+0x97/0x170 [ 453.897940][ T2741] __kernfs_create_file+0x4a/0x270 [ 453.903050][ T2741] cgroup_addrm_files+0xab8/0xfe0 [ 453.908085][ T2741] ? ____kasan_kmalloc+0xdc/0x110 [ 453.913304][ T2741] ? __kasan_kmalloc+0x9/0x10 [ 453.918154][ T2741] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 453.923975][ T2741] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 453.930477][ T2741] ? delete_node+0x759/0x7b0 [ 453.935085][ T2741] ? __kasan_check_read+0x11/0x20 [ 453.940094][ T2741] ? delete_node+0x759/0x7b0 [ 453.944674][ T2741] ? __kasan_check_write+0x14/0x20 [ 453.949785][ T2741] ? idr_replace+0x1c4/0x230 [ 453.954377][ T2741] ? idr_get_next+0x4b0/0x4b0 [ 453.959172][ T2741] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 453.964205][ T2741] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 453.969409][ T2741] css_populate_dir+0x137/0x370 [ 453.974256][ T2741] cgroup_apply_control_enable+0x8b9/0x12f0 [ 453.980251][ T2741] cgroup_apply_control+0x8e/0x7e0 [ 453.985354][ T2741] ? css_next_child+0x160/0x160 [ 453.990348][ T2741] ? stack_trace_save+0x12d/0x1f0 [ 453.995724][ T2741] ? io_schedule+0x120/0x120 [ 454.000321][ T2741] ? kernfs_fop_write_iter+0x15e/0x410 [ 454.005812][ T2741] ? __kasan_check_write+0x14/0x20 [ 454.011184][ T2741] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 454.016452][ T2741] cgroup_subtree_control_write+0xd19/0x1310 [ 454.022503][ T2741] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 454.028557][ T2741] ? __kasan_check_write+0x14/0x20 [ 454.033653][ T2741] ? _copy_from_iter+0x3fb/0xd60 [ 454.038599][ T2741] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 454.044737][ T2741] cgroup_file_write+0x28e/0x590 [ 454.049661][ T2741] ? cgroup_seqfile_stop+0xc0/0xc0 [ 454.054806][ T2741] ? mutex_trylock+0x180/0x180 [ 454.059557][ T2741] ? __kasan_check_write+0x14/0x20 [ 454.064663][ T2741] kernfs_fop_write_iter+0x2d0/0x410 [ 454.069955][ T2741] ? cgroup_seqfile_stop+0xc0/0xc0 [ 454.075054][ T2741] vfs_write+0xc4a/0xf80 [ 454.079296][ T2741] ? slab_free_freelist_hook+0xcc/0x1a0 [ 454.085258][ T2741] ? kernel_write+0x420/0x420 [ 454.090020][ T2741] ? do_sys_openat2+0x397/0x470 [ 454.094854][ T2741] ? __kasan_check_read+0x11/0x20 [ 454.099937][ T2741] ? __fdget_pos+0x27e/0x310 [ 454.104547][ T2741] ksys_write+0x198/0x2c0 [ 454.109014][ T2741] ? __ia32_sys_read+0x90/0x90 [ 454.113779][ T2741] ? debug_smp_processor_id+0x17/0x20 [ 454.119462][ T2741] __x64_sys_write+0x7b/0x90 [ 454.124134][ T2741] do_syscall_64+0x34/0x70 [ 454.128935][ T2741] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 454.134851][ T2741] RIP: 0033:0x7f48883727a9 [ 454.139345][ T2741] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 454.158958][ T2741] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 454.167385][ T2741] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 454.175438][ T2741] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 454.183787][ T2741] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 454.191834][ T2741] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 454.199792][ T2741] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000f [ 454.207897][ T2741] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 454.257216][ T2749] FAULT_INJECTION: forcing a failure. [ 454.257216][ T2749] name failslab, interval 1, probability 0, space 0, times 0 [ 454.270247][ T2749] CPU: 0 PID: 2749 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 454.280858][ T2749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 454.290910][ T2749] Call Trace: [ 454.294193][ T2749] dump_stack_lvl+0x1e2/0x24b [ 454.298874][ T2749] ? bfq_pos_tree_add_move+0x43e/0x43e [ 454.304432][ T2749] ? selinux_kernfs_init_security+0x1a8/0x760 [ 454.310495][ T2749] dump_stack+0x15/0x17 [ 454.314751][ T2749] should_fail+0x3c0/0x510 [ 454.319191][ T2749] ? __kernfs_new_node+0x99/0x6e0 [ 454.324229][ T2749] __should_failslab+0x9f/0xe0 [ 454.328992][ T2749] should_failslab+0x9/0x20 [ 454.333489][ T2749] __kmalloc_track_caller+0x5f/0x350 [ 454.338899][ T2749] kstrdup_const+0x55/0x90 [ 454.343321][ T2749] __kernfs_new_node+0x99/0x6e0 [ 454.348266][ T2749] ? is_module_text_address+0xe1/0x140 [ 454.353771][ T2749] ? kernfs_new_node+0x170/0x170 [ 454.358801][ T2749] ? ptr_to_hashval+0x60/0x60 [ 454.363557][ T2749] ? mutex_lock+0xb2/0x1e0 [ 454.367971][ T2749] ? snprintf+0xd6/0x120 [ 454.372324][ T2749] ? mutex_unlock+0x29/0xf0 [ 454.376821][ T2749] kernfs_new_node+0x97/0x170 [ 454.381500][ T2749] __kernfs_create_file+0x4a/0x270 [ 454.386608][ T2749] cgroup_addrm_files+0xab8/0xfe0 [ 454.391622][ T2749] ? ____kasan_kmalloc+0xdc/0x110 [ 454.396627][ T2749] ? __kasan_kmalloc+0x9/0x10 [ 454.401288][ T2749] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 454.406817][ T2749] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 454.412960][ T2749] ? delete_node+0x759/0x7b0 [ 454.417617][ T2749] ? __kasan_check_read+0x11/0x20 [ 454.422624][ T2749] ? idr_replace+0x1c4/0x230 [ 454.427207][ T2749] ? idr_get_next+0x4b0/0x4b0 [ 454.431887][ T2749] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 454.436920][ T2749] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 454.442105][ T2749] css_populate_dir+0x137/0x370 [ 454.446954][ T2749] cgroup_apply_control_enable+0x8b9/0x12f0 [ 454.452831][ T2749] cgroup_apply_control+0x8e/0x7e0 [ 454.457928][ T2749] ? css_next_child+0x160/0x160 [ 454.462849][ T2749] ? stack_trace_save+0x12d/0x1f0 [ 454.467856][ T2749] ? io_schedule+0x120/0x120 [ 454.472462][ T2749] ? kernfs_fop_write_iter+0x15e/0x410 [ 454.477954][ T2749] ? __kasan_check_write+0x14/0x20 [ 454.483050][ T2749] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 454.488421][ T2749] cgroup_subtree_control_write+0xd19/0x1310 [ 454.494511][ T2749] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 454.500582][ T2749] ? __kasan_check_write+0x14/0x20 [ 454.505887][ T2749] ? _copy_from_iter+0x3fb/0xd60 [ 454.510951][ T2749] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 454.517223][ T2749] cgroup_file_write+0x28e/0x590 [ 454.522666][ T2749] ? cgroup_seqfile_stop+0xc0/0xc0 [ 454.528304][ T2749] ? mutex_trylock+0x180/0x180 [ 454.533154][ T2749] ? __kasan_check_write+0x14/0x20 [ 454.538429][ T2749] kernfs_fop_write_iter+0x2d0/0x410 [ 454.543801][ T2749] ? cgroup_seqfile_stop+0xc0/0xc0 [ 454.548904][ T2749] vfs_write+0xc4a/0xf80 [ 454.553182][ T2749] ? slab_free_freelist_hook+0xcc/0x1a0 [ 454.558801][ T2749] ? kernel_write+0x420/0x420 [ 454.563479][ T2749] ? do_sys_openat2+0x397/0x470 [ 454.568386][ T2749] ? __kasan_check_read+0x11/0x20 [ 454.573436][ T2749] ? __fdget_pos+0x27e/0x310 [ 454.578106][ T2749] ksys_write+0x198/0x2c0 [ 454.582435][ T2749] ? __kasan_check_write+0x14/0x20 [ 454.587552][ T2749] ? __ia32_sys_read+0x90/0x90 [ 454.592396][ T2749] ? debug_smp_processor_id+0x17/0x20 [ 454.598124][ T2749] __x64_sys_write+0x7b/0x90 [ 454.602713][ T2749] do_syscall_64+0x34/0x70 [ 454.607240][ T2749] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 454.613120][ T2749] RIP: 0033:0x7f48883727a9 [ 454.617778][ T2749] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 454.637489][ T2749] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 454.645902][ T2749] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 454.653865][ T2749] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 454.661907][ T2749] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 454.669862][ T2749] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 454.678103][ T2749] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000d [ 454.687431][ T2749] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 454.717333][ T2745] FAULT_INJECTION: forcing a failure. [ 454.717333][ T2745] name failslab, interval 1, probability 0, space 0, times 0 [ 454.730431][ T2745] CPU: 0 PID: 2745 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 454.741125][ T2745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 454.751657][ T2745] Call Trace: [ 454.755063][ T2745] dump_stack_lvl+0x1e2/0x24b [ 454.759932][ T2745] ? panic+0x7d7/0x7d7 [ 454.764080][ T2745] ? bfq_pos_tree_add_move+0x43e/0x43e [ 454.769884][ T2745] ? selinux_kernfs_init_security+0x1a8/0x760 [ 454.775937][ T2745] dump_stack+0x15/0x17 [ 454.780087][ T2745] should_fail+0x3c0/0x510 [ 454.784500][ T2745] __should_failslab+0x9f/0xe0 [ 454.789259][ T2745] should_failslab+0x9/0x20 [ 454.793915][ T2745] kmem_cache_alloc+0x3f/0x300 [ 454.798765][ T2745] ? __kernfs_new_node+0xdb/0x6e0 [ 454.804037][ T2745] __kernfs_new_node+0xdb/0x6e0 [ 454.809109][ T2745] ? is_module_text_address+0xe1/0x140 [ 454.814558][ T2745] ? kernfs_new_node+0x170/0x170 [ 454.819514][ T2745] ? ptr_to_hashval+0x60/0x60 [ 454.824169][ T2745] ? arch_stack_walk+0xf8/0x140 [ 454.828995][ T2745] ? snprintf+0xd6/0x120 [ 454.833224][ T2745] kernfs_new_node+0x97/0x170 [ 454.838148][ T2745] __kernfs_create_file+0x4a/0x270 [ 454.843410][ T2745] cgroup_addrm_files+0xab8/0xfe0 [ 454.848411][ T2745] ? ____kasan_kmalloc+0xdc/0x110 [ 454.853413][ T2745] ? __kasan_kmalloc+0x9/0x10 [ 454.858151][ T2745] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 454.863901][ T2745] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 454.870050][ T2745] ? delete_node+0x759/0x7b0 [ 454.874744][ T2745] ? __kasan_check_read+0x11/0x20 [ 454.879783][ T2745] ? delete_node+0x759/0x7b0 [ 454.884487][ T2745] ? __kasan_check_write+0x14/0x20 [ 454.889602][ T2745] ? idr_replace+0x1c4/0x230 [ 454.894167][ T2745] ? idr_get_next+0x4b0/0x4b0 [ 454.898916][ T2745] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 454.904530][ T2745] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 454.909795][ T2745] css_populate_dir+0x137/0x370 [ 454.914736][ T2745] cgroup_apply_control_enable+0x8b9/0x12f0 [ 454.920701][ T2745] cgroup_apply_control+0x8e/0x7e0 [ 454.925908][ T2745] ? css_next_child+0x160/0x160 [ 454.930744][ T2745] ? stack_trace_save+0x12d/0x1f0 [ 454.935739][ T2745] ? io_schedule+0x120/0x120 [ 454.940417][ T2745] ? kernfs_fop_write_iter+0x15e/0x410 [ 454.945849][ T2745] ? __kasan_check_write+0x14/0x20 [ 454.950937][ T2745] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 454.956302][ T2745] cgroup_subtree_control_write+0xd19/0x1310 [ 454.962346][ T2745] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 454.968313][ T2745] ? __kasan_check_write+0x14/0x20 [ 454.973399][ T2745] ? _copy_from_iter+0x3fb/0xd60 [ 454.978496][ T2745] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 454.984449][ T2745] cgroup_file_write+0x28e/0x590 [ 454.989748][ T2745] ? cgroup_seqfile_stop+0xc0/0xc0 [ 454.995204][ T2745] ? mutex_trylock+0x180/0x180 [ 454.999964][ T2745] ? __kasan_check_write+0x14/0x20 [ 455.005139][ T2745] kernfs_fop_write_iter+0x2d0/0x410 [ 455.010400][ T2745] ? cgroup_seqfile_stop+0xc0/0xc0 [ 455.015514][ T2745] vfs_write+0xc4a/0xf80 [ 455.019819][ T2745] ? slab_free_freelist_hook+0xcc/0x1a0 [ 455.025443][ T2745] ? kernel_write+0x420/0x420 [ 455.030327][ T2745] ? do_sys_openat2+0x397/0x470 [ 455.035223][ T2745] ? __kasan_check_read+0x11/0x20 [ 455.040244][ T2745] ? __fdget_pos+0x27e/0x310 [ 455.044939][ T2745] ksys_write+0x198/0x2c0 [ 455.049259][ T2745] ? __ia32_sys_read+0x90/0x90 [ 455.054088][ T2745] ? debug_smp_processor_id+0x17/0x20 [ 455.059451][ T2745] __x64_sys_write+0x7b/0x90 [ 455.064033][ T2745] do_syscall_64+0x34/0x70 [ 455.068438][ T2745] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 455.074513][ T2745] RIP: 0033:0x7f48883727a9 [ 455.078993][ T2745] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 455.099249][ T2745] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 455.107654][ T2745] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 455.117212][ T2745] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 455.125165][ T2745] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 455.133447][ T2745] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 455.141519][ T2745] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000014 [ 455.150014][ T2745] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 455.186995][ T2751] FAULT_INJECTION: forcing a failure. [ 455.186995][ T2751] name failslab, interval 1, probability 0, space 0, times 0 [ 455.199915][ T2751] CPU: 0 PID: 2751 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 455.210339][ T2751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 455.220704][ T2751] Call Trace: [ 455.223992][ T2751] dump_stack_lvl+0x1e2/0x24b [ 455.228672][ T2751] ? bfq_pos_tree_add_move+0x43e/0x43e [ 455.234138][ T2751] ? selinux_kernfs_init_security+0x1a8/0x760 [ 455.240197][ T2751] dump_stack+0x15/0x17 [ 455.244341][ T2751] should_fail+0x3c0/0x510 [ 455.248853][ T2751] ? __kernfs_new_node+0x99/0x6e0 [ 455.253946][ T2751] __should_failslab+0x9f/0xe0 [ 455.258704][ T2751] should_failslab+0x9/0x20 [ 455.263222][ T2751] __kmalloc_track_caller+0x5f/0x350 [ 455.268596][ T2751] kstrdup_const+0x55/0x90 [ 455.273025][ T2751] __kernfs_new_node+0x99/0x6e0 [ 455.278348][ T2751] ? is_module_text_address+0xe1/0x140 [ 455.283975][ T2751] ? kernfs_new_node+0x170/0x170 [ 455.288906][ T2751] ? ptr_to_hashval+0x60/0x60 [ 455.293991][ T2751] ? mutex_lock+0xb2/0x1e0 [ 455.298401][ T2751] ? snprintf+0xd6/0x120 [ 455.302673][ T2751] ? mutex_unlock+0x29/0xf0 [ 455.307382][ T2751] kernfs_new_node+0x97/0x170 [ 455.312233][ T2751] __kernfs_create_file+0x4a/0x270 [ 455.317356][ T2751] cgroup_addrm_files+0xab8/0xfe0 [ 455.322723][ T2751] ? ____kasan_kmalloc+0xdc/0x110 [ 455.328016][ T2751] ? __kasan_kmalloc+0x9/0x10 [ 455.332936][ T2751] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 455.338720][ T2751] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 455.345223][ T2751] ? delete_node+0x759/0x7b0 [ 455.349915][ T2751] ? __kasan_check_read+0x11/0x20 [ 455.355077][ T2751] ? idr_replace+0x1c4/0x230 [ 455.359698][ T2751] ? idr_get_next+0x4b0/0x4b0 [ 455.364466][ T2751] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 455.369526][ T2751] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 455.374725][ T2751] css_populate_dir+0x137/0x370 [ 455.379573][ T2751] cgroup_apply_control_enable+0x8b9/0x12f0 [ 455.385780][ T2751] cgroup_apply_control+0x8e/0x7e0 [ 455.390896][ T2751] ? css_next_child+0x160/0x160 [ 455.395744][ T2751] ? stack_trace_save+0x12d/0x1f0 [ 455.400767][ T2751] ? io_schedule+0x120/0x120 [ 455.405347][ T2751] ? kernfs_fop_write_iter+0x15e/0x410 [ 455.410884][ T2751] ? __kasan_check_write+0x14/0x20 [ 455.416149][ T2751] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 455.421561][ T2751] cgroup_subtree_control_write+0xd19/0x1310 [ 455.427803][ T2751] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 455.434070][ T2751] ? __kasan_check_write+0x14/0x20 [ 455.439463][ T2751] ? _copy_from_iter+0x3fb/0xd60 [ 455.445112][ T2751] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 455.451945][ T2751] cgroup_file_write+0x28e/0x590 [ 455.457038][ T2751] ? cgroup_seqfile_stop+0xc0/0xc0 [ 455.462729][ T2751] ? mutex_trylock+0x180/0x180 [ 455.467714][ T2751] ? __kasan_check_write+0x14/0x20 [ 455.473039][ T2751] kernfs_fop_write_iter+0x2d0/0x410 [ 455.478659][ T2751] ? cgroup_seqfile_stop+0xc0/0xc0 [ 455.483769][ T2751] vfs_write+0xc4a/0xf80 [ 455.488092][ T2751] ? slab_free_freelist_hook+0xcc/0x1a0 [ 455.493797][ T2751] ? kernel_write+0x420/0x420 [ 455.498502][ T2751] ? do_sys_openat2+0x397/0x470 [ 455.503833][ T2751] ? __kasan_check_read+0x11/0x20 [ 455.510147][ T2751] ? __fdget_pos+0x27e/0x310 [ 455.515146][ T2751] ksys_write+0x198/0x2c0 [ 455.519709][ T2751] ? __ia32_sys_read+0x90/0x90 [ 455.524786][ T2751] ? debug_smp_processor_id+0x17/0x20 [ 455.530160][ T2751] __x64_sys_write+0x7b/0x90 [ 455.535299][ T2751] do_syscall_64+0x34/0x70 [ 455.540169][ T2751] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 455.546593][ T2751] RIP: 0033:0x7f48883727a9 [ 455.551463][ T2751] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 455.572314][ T2751] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 455.580809][ T2751] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 455.589206][ T2751] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 455.597325][ T2751] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 455.605793][ T2751] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 455.614031][ T2751] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000010 [ 455.622552][ T2751] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 455.667451][ T2754] FAULT_INJECTION: forcing a failure. [ 455.667451][ T2754] name failslab, interval 1, probability 0, space 0, times 0 [ 455.680303][ T2754] CPU: 0 PID: 2754 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 455.691016][ T2754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 455.701673][ T2754] Call Trace: [ 455.704982][ T2754] dump_stack_lvl+0x1e2/0x24b [ 455.709650][ T2754] ? bfq_pos_tree_add_move+0x43e/0x43e [ 455.715228][ T2754] ? selinux_kernfs_init_security+0x1a8/0x760 [ 455.721508][ T2754] dump_stack+0x15/0x17 [ 455.725952][ T2754] should_fail+0x3c0/0x510 [ 455.730442][ T2754] ? __kernfs_new_node+0x99/0x6e0 [ 455.735631][ T2754] __should_failslab+0x9f/0xe0 [ 455.740391][ T2754] should_failslab+0x9/0x20 [ 455.744993][ T2754] __kmalloc_track_caller+0x5f/0x350 [ 455.750474][ T2754] kstrdup_const+0x55/0x90 [ 455.755104][ T2754] __kernfs_new_node+0x99/0x6e0 [ 455.760217][ T2754] ? is_module_text_address+0xe1/0x140 [ 455.765677][ T2754] ? kernfs_new_node+0x170/0x170 [ 455.770616][ T2754] ? ptr_to_hashval+0x60/0x60 [ 455.775623][ T2754] ? mutex_lock+0xb2/0x1e0 [ 455.780053][ T2754] ? snprintf+0xd6/0x120 [ 455.784797][ T2754] ? mutex_unlock+0x29/0xf0 [ 455.789760][ T2754] kernfs_new_node+0x97/0x170 [ 455.794535][ T2754] __kernfs_create_file+0x4a/0x270 [ 455.799917][ T2754] cgroup_addrm_files+0xab8/0xfe0 [ 455.805635][ T2754] ? ____kasan_kmalloc+0xdc/0x110 [ 455.810833][ T2754] ? __kasan_kmalloc+0x9/0x10 [ 455.815527][ T2754] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 455.821443][ T2754] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 455.828042][ T2754] ? delete_node+0x759/0x7b0 [ 455.832617][ T2754] ? __kasan_check_read+0x11/0x20 [ 455.837625][ T2754] ? idr_replace+0x1c4/0x230 [ 455.842708][ T2754] ? idr_get_next+0x4b0/0x4b0 [ 455.847660][ T2754] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 455.852937][ T2754] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 455.858849][ T2754] css_populate_dir+0x137/0x370 [ 455.863697][ T2754] cgroup_apply_control_enable+0x8b9/0x12f0 [ 455.869584][ T2754] cgroup_apply_control+0x8e/0x7e0 [ 455.874679][ T2754] ? css_next_child+0x160/0x160 [ 455.879548][ T2754] ? io_schedule+0x120/0x120 [ 455.884259][ T2754] ? kernfs_fop_write_iter+0x15e/0x410 [ 455.890189][ T2754] ? __kasan_check_write+0x14/0x20 [ 455.897621][ T2754] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 455.903124][ T2754] cgroup_subtree_control_write+0xd19/0x1310 [ 455.909301][ T2754] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 455.915557][ T2754] ? __kasan_check_write+0x14/0x20 [ 455.920940][ T2754] ? _copy_from_iter+0x3fb/0xd60 [ 455.925993][ T2754] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 455.932141][ T2754] cgroup_file_write+0x28e/0x590 [ 455.937124][ T2754] ? cgroup_seqfile_stop+0xc0/0xc0 [ 455.942324][ T2754] ? mutex_trylock+0x180/0x180 [ 455.947717][ T2754] ? __kasan_check_write+0x14/0x20 [ 455.953017][ T2754] kernfs_fop_write_iter+0x2d0/0x410 [ 455.958571][ T2754] ? cgroup_seqfile_stop+0xc0/0xc0 [ 455.963700][ T2754] vfs_write+0xc4a/0xf80 [ 455.968113][ T2754] ? slab_free_freelist_hook+0xcc/0x1a0 [ 455.973793][ T2754] ? kernel_write+0x420/0x420 [ 455.978735][ T2754] ? do_sys_openat2+0x397/0x470 [ 455.983592][ T2754] ? __kasan_check_read+0x11/0x20 [ 455.988629][ T2754] ? __fdget_pos+0x27e/0x310 [ 455.993408][ T2754] ksys_write+0x198/0x2c0 [ 455.997972][ T2754] ? __kasan_check_write+0x14/0x20 [ 456.003103][ T2754] ? __ia32_sys_read+0x90/0x90 [ 456.007863][ T2754] ? __ia32_sys_open+0x270/0x270 [ 456.012794][ T2754] __x64_sys_write+0x7b/0x90 [ 456.017473][ T2754] do_syscall_64+0x34/0x70 [ 456.023102][ T2754] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 456.029121][ T2754] RIP: 0033:0x7f48883727a9 [ 456.033539][ T2754] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 456.053365][ T2754] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 456.062158][ T2754] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 456.070143][ T2754] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 456.078121][ T2754] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 456.086466][ T2754] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 456.094435][ T2754] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000011 [ 456.102920][ T2754] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 456.147237][ T2746] FAULT_INJECTION: forcing a failure. [ 456.147237][ T2746] name failslab, interval 1, probability 0, space 0, times 0 [ 456.160287][ T2746] CPU: 1 PID: 2746 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 456.170706][ T2746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 456.180746][ T2746] Call Trace: [ 456.184028][ T2746] dump_stack_lvl+0x1e2/0x24b [ 456.189239][ T2746] ? bfq_pos_tree_add_move+0x43e/0x43e [ 456.195660][ T2746] ? selinux_kernfs_init_security+0x1a8/0x760 [ 456.201779][ T2746] dump_stack+0x15/0x17 [ 456.205937][ T2746] should_fail+0x3c0/0x510 [ 456.210618][ T2746] ? __kernfs_new_node+0x99/0x6e0 [ 456.215650][ T2746] __should_failslab+0x9f/0xe0 [ 456.220594][ T2746] should_failslab+0x9/0x20 [ 456.225082][ T2746] __kmalloc_track_caller+0x5f/0x350 [ 456.230450][ T2746] kstrdup_const+0x55/0x90 [ 456.234883][ T2746] __kernfs_new_node+0x99/0x6e0 [ 456.239749][ T2746] ? is_module_text_address+0xe1/0x140 [ 456.245233][ T2746] ? kernfs_new_node+0x170/0x170 [ 456.250328][ T2746] ? ptr_to_hashval+0x60/0x60 [ 456.255004][ T2746] ? mutex_lock+0xb2/0x1e0 [ 456.259416][ T2746] ? snprintf+0xd6/0x120 [ 456.263664][ T2746] ? mutex_unlock+0x29/0xf0 [ 456.268785][ T2746] kernfs_new_node+0x97/0x170 [ 456.274676][ T2746] __kernfs_create_file+0x4a/0x270 [ 456.279791][ T2746] cgroup_addrm_files+0xab8/0xfe0 [ 456.284808][ T2746] ? ____kasan_kmalloc+0xdc/0x110 [ 456.289815][ T2746] ? __kasan_kmalloc+0x9/0x10 [ 456.294634][ T2746] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 456.300288][ T2746] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 456.306680][ T2746] ? delete_node+0x759/0x7b0 [ 456.311284][ T2746] ? __kasan_check_read+0x11/0x20 [ 456.316413][ T2746] ? idr_replace+0x1c4/0x230 [ 456.321033][ T2746] ? idr_get_next+0x4b0/0x4b0 [ 456.325719][ T2746] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 456.330830][ T2746] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 456.336552][ T2746] css_populate_dir+0x137/0x370 [ 456.341489][ T2746] cgroup_apply_control_enable+0x8b9/0x12f0 [ 456.347712][ T2746] cgroup_apply_control+0x8e/0x7e0 [ 456.352931][ T2746] ? css_next_child+0x160/0x160 [ 456.358406][ T2746] ? stack_trace_save+0x12d/0x1f0 [ 456.363451][ T2746] ? io_schedule+0x120/0x120 [ 456.368137][ T2746] ? kernfs_fop_write_iter+0x15e/0x410 [ 456.373587][ T2746] ? __kasan_check_write+0x14/0x20 [ 456.378790][ T2746] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 456.384091][ T2746] cgroup_subtree_control_write+0xd19/0x1310 [ 456.390312][ T2746] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 456.396394][ T2746] ? __kasan_check_write+0x14/0x20 [ 456.401504][ T2746] ? _copy_from_iter+0x3fb/0xd60 [ 456.406433][ T2746] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 456.412418][ T2746] cgroup_file_write+0x28e/0x590 [ 456.417604][ T2746] ? cgroup_seqfile_stop+0xc0/0xc0 [ 456.422981][ T2746] ? mutex_trylock+0x180/0x180 [ 456.427751][ T2746] ? __kasan_check_write+0x14/0x20 [ 456.432999][ T2746] kernfs_fop_write_iter+0x2d0/0x410 [ 456.438277][ T2746] ? cgroup_seqfile_stop+0xc0/0xc0 [ 456.443570][ T2746] vfs_write+0xc4a/0xf80 [ 456.447810][ T2746] ? slab_free_freelist_hook+0xcc/0x1a0 [ 456.453441][ T2746] ? kernel_write+0x420/0x420 [ 456.458101][ T2746] ? do_sys_openat2+0x397/0x470 [ 456.462939][ T2746] ? __kasan_check_read+0x11/0x20 [ 456.467949][ T2746] ? __fdget_pos+0x27e/0x310 [ 456.472524][ T2746] ksys_write+0x198/0x2c0 [ 456.476957][ T2746] ? __ia32_sys_read+0x90/0x90 [ 456.481716][ T2746] ? debug_smp_processor_id+0x17/0x20 [ 456.487168][ T2746] __x64_sys_write+0x7b/0x90 [ 456.491743][ T2746] do_syscall_64+0x34/0x70 [ 456.496171][ T2746] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 456.502176][ T2746] RIP: 0033:0x7f48883727a9 [ 456.506667][ T2746] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 456.526729][ T2746] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 456.535292][ T2746] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 456.543826][ T2746] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 456.551964][ T2746] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 456.559922][ T2746] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 456.568003][ T2746] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000013 [ 456.576108][ T2746] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 456.607258][ T2750] FAULT_INJECTION: forcing a failure. [ 456.607258][ T2750] name failslab, interval 1, probability 0, space 0, times 0 [ 456.620430][ T2750] CPU: 0 PID: 2750 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 456.630867][ T2750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 456.640927][ T2750] Call Trace: [ 456.644229][ T2750] dump_stack_lvl+0x1e2/0x24b [ 456.648882][ T2750] ? panic+0x7d7/0x7d7 [ 456.652965][ T2750] ? bfq_pos_tree_add_move+0x43e/0x43e [ 456.658422][ T2750] ? selinux_kernfs_init_security+0x1a8/0x760 [ 456.664486][ T2750] dump_stack+0x15/0x17 [ 456.668626][ T2750] should_fail+0x3c0/0x510 [ 456.673059][ T2750] __should_failslab+0x9f/0xe0 [ 456.677846][ T2750] should_failslab+0x9/0x20 [ 456.682524][ T2750] kmem_cache_alloc+0x3f/0x300 [ 456.687293][ T2750] ? __kernfs_new_node+0xdb/0x6e0 [ 456.692298][ T2750] __kernfs_new_node+0xdb/0x6e0 [ 456.697171][ T2750] ? is_module_text_address+0xe1/0x140 [ 456.702694][ T2750] ? kernfs_new_node+0x170/0x170 [ 456.707697][ T2750] ? ptr_to_hashval+0x60/0x60 [ 456.712365][ T2750] ? arch_stack_walk+0xf8/0x140 [ 456.717223][ T2750] ? snprintf+0xd6/0x120 [ 456.721462][ T2750] kernfs_new_node+0x97/0x170 [ 456.726299][ T2750] __kernfs_create_file+0x4a/0x270 [ 456.731391][ T2750] cgroup_addrm_files+0xab8/0xfe0 [ 456.736409][ T2750] ? ____kasan_kmalloc+0xdc/0x110 [ 456.741421][ T2750] ? __kasan_kmalloc+0x9/0x10 [ 456.746083][ T2750] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 456.751786][ T2750] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 456.758005][ T2750] ? delete_node+0x759/0x7b0 [ 456.762583][ T2750] ? __kasan_check_read+0x11/0x20 [ 456.767600][ T2750] ? delete_node+0x759/0x7b0 [ 456.772167][ T2750] ? __kasan_check_write+0x14/0x20 [ 456.777296][ T2750] ? idr_replace+0x1c4/0x230 [ 456.781876][ T2750] ? idr_get_next+0x4b0/0x4b0 [ 456.786532][ T2750] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 456.791698][ T2750] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 456.797061][ T2750] css_populate_dir+0x137/0x370 [ 456.801986][ T2750] cgroup_apply_control_enable+0x8b9/0x12f0 [ 456.807861][ T2750] cgroup_apply_control+0x8e/0x7e0 [ 456.813102][ T2750] ? css_next_child+0x160/0x160 [ 456.818081][ T2750] ? stack_trace_save+0x12d/0x1f0 [ 456.823106][ T2750] ? io_schedule+0x120/0x120 [ 456.827679][ T2750] ? kernfs_fop_write_iter+0x15e/0x410 [ 456.833124][ T2750] ? __kasan_check_write+0x14/0x20 [ 456.838243][ T2750] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 456.843858][ T2750] cgroup_subtree_control_write+0xd19/0x1310 [ 456.850142][ T2750] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 456.856550][ T2750] ? __kasan_check_write+0x14/0x20 [ 456.861652][ T2750] ? _copy_from_iter+0x3fb/0xd60 [ 456.866690][ T2750] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 456.872781][ T2750] cgroup_file_write+0x28e/0x590 [ 456.877711][ T2750] ? cgroup_seqfile_stop+0xc0/0xc0 [ 456.882805][ T2750] ? mutex_trylock+0x180/0x180 [ 456.887553][ T2750] ? __kasan_check_write+0x14/0x20 [ 456.892662][ T2750] kernfs_fop_write_iter+0x2d0/0x410 [ 456.897921][ T2750] ? cgroup_seqfile_stop+0xc0/0xc0 [ 456.903006][ T2750] vfs_write+0xc4a/0xf80 [ 456.907263][ T2750] ? slab_free_freelist_hook+0xcc/0x1a0 [ 456.912799][ T2750] ? kernel_write+0x420/0x420 [ 456.917539][ T2750] ? do_sys_openat2+0x397/0x470 [ 456.922366][ T2750] ? __kasan_check_read+0x11/0x20 [ 456.927385][ T2750] ? __fdget_pos+0x27e/0x310 [ 456.931953][ T2750] ksys_write+0x198/0x2c0 [ 456.936258][ T2750] ? __ia32_sys_read+0x90/0x90 [ 456.941000][ T2750] ? debug_smp_processor_id+0x17/0x20 [ 456.946349][ T2750] __x64_sys_write+0x7b/0x90 [ 456.950925][ T2750] do_syscall_64+0x34/0x70 [ 456.955318][ T2750] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 456.961184][ T2750] RIP: 0033:0x7f48883727a9 [ 456.965755][ T2750] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 456.985732][ T2750] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 456.994498][ T2750] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 457.002458][ T2750] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 457.010425][ T2750] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 457.018373][ T2750] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 457.026328][ T2750] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001b [ 457.034512][ T2750] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 457.077123][ T2755] FAULT_INJECTION: forcing a failure. [ 457.077123][ T2755] name failslab, interval 1, probability 0, space 0, times 0 [ 457.089931][ T2755] CPU: 0 PID: 2755 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 457.100521][ T2755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 457.110688][ T2755] Call Trace: [ 457.113970][ T2755] dump_stack_lvl+0x1e2/0x24b [ 457.118729][ T2755] ? bfq_pos_tree_add_move+0x43e/0x43e [ 457.124196][ T2755] ? selinux_kernfs_init_security+0x1a8/0x760 [ 457.130406][ T2755] dump_stack+0x15/0x17 [ 457.134561][ T2755] should_fail+0x3c0/0x510 [ 457.138968][ T2755] ? __kernfs_new_node+0x99/0x6e0 [ 457.143978][ T2755] __should_failslab+0x9f/0xe0 [ 457.148819][ T2755] should_failslab+0x9/0x20 [ 457.153307][ T2755] __kmalloc_track_caller+0x5f/0x350 [ 457.158675][ T2755] kstrdup_const+0x55/0x90 [ 457.163253][ T2755] __kernfs_new_node+0x99/0x6e0 [ 457.168090][ T2755] ? is_module_text_address+0xe1/0x140 [ 457.173532][ T2755] ? kernfs_new_node+0x170/0x170 [ 457.184826][ T2755] ? ptr_to_hashval+0x60/0x60 [ 457.189678][ T2755] ? mutex_lock+0xb2/0x1e0 [ 457.194266][ T2755] ? snprintf+0xd6/0x120 [ 457.198945][ T2755] ? mutex_unlock+0x29/0xf0 [ 457.204671][ T2755] kernfs_new_node+0x97/0x170 [ 457.209544][ T2755] __kernfs_create_file+0x4a/0x270 [ 457.214881][ T2755] cgroup_addrm_files+0xab8/0xfe0 [ 457.220155][ T2755] ? ____kasan_kmalloc+0xdc/0x110 [ 457.225252][ T2755] ? __kasan_kmalloc+0x9/0x10 [ 457.229931][ T2755] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 457.235463][ T2755] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 457.241699][ T2755] ? delete_node+0x759/0x7b0 [ 457.246945][ T2755] ? __kasan_check_read+0x11/0x20 [ 457.252086][ T2755] ? idr_replace+0x1c4/0x230 [ 457.256666][ T2755] ? idr_get_next+0x4b0/0x4b0 [ 457.261337][ T2755] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 457.266631][ T2755] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 457.271847][ T2755] css_populate_dir+0x137/0x370 [ 457.276707][ T2755] cgroup_apply_control_enable+0x8b9/0x12f0 [ 457.282591][ T2755] cgroup_apply_control+0x8e/0x7e0 [ 457.287946][ T2755] ? css_next_child+0x160/0x160 [ 457.292776][ T2755] ? stack_trace_save+0x12d/0x1f0 [ 457.299358][ T2755] ? io_schedule+0x120/0x120 [ 457.304817][ T2755] ? kernfs_fop_write_iter+0x15e/0x410 [ 457.310368][ T2755] ? __kasan_check_write+0x14/0x20 [ 457.315752][ T2755] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 457.321233][ T2755] cgroup_subtree_control_write+0xd19/0x1310 [ 457.327645][ T2755] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 457.333735][ T2755] ? __kasan_check_write+0x14/0x20 [ 457.339420][ T2755] ? _copy_from_iter+0x3fb/0xd60 [ 457.344367][ T2755] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 457.350533][ T2755] cgroup_file_write+0x28e/0x590 [ 457.355467][ T2755] ? cgroup_seqfile_stop+0xc0/0xc0 [ 457.360726][ T2755] ? mutex_trylock+0x180/0x180 [ 457.365486][ T2755] ? __kasan_check_write+0x14/0x20 [ 457.370587][ T2755] kernfs_fop_write_iter+0x2d0/0x410 [ 457.375862][ T2755] ? cgroup_seqfile_stop+0xc0/0xc0 [ 457.380970][ T2755] vfs_write+0xc4a/0xf80 [ 457.385313][ T2755] ? slab_free_freelist_hook+0xcc/0x1a0 [ 457.390991][ T2755] ? kernel_write+0x420/0x420 [ 457.395751][ T2755] ? do_sys_openat2+0x397/0x470 [ 457.400674][ T2755] ? __kasan_check_read+0x11/0x20 [ 457.405697][ T2755] ? __fdget_pos+0x27e/0x310 [ 457.410268][ T2755] ksys_write+0x198/0x2c0 [ 457.414591][ T2755] ? __ia32_sys_read+0x90/0x90 [ 457.419429][ T2755] ? debug_smp_processor_id+0x17/0x20 [ 457.424783][ T2755] __x64_sys_write+0x7b/0x90 [ 457.429398][ T2755] do_syscall_64+0x34/0x70 [ 457.433816][ T2755] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 457.439773][ T2755] RIP: 0033:0x7f48883727a9 [ 457.444234][ T2755] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 457.463821][ T2755] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 457.472301][ T2755] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 457.480407][ T2755] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 457.488483][ T2755] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 457.496584][ T2755] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 457.504640][ T2755] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000012 [ 457.513296][ T2755] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 457.547266][ T2753] FAULT_INJECTION: forcing a failure. [ 457.547266][ T2753] name failslab, interval 1, probability 0, space 0, times 0 [ 457.560628][ T2753] CPU: 1 PID: 2753 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 457.571224][ T2753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 457.581398][ T2753] Call Trace: [ 457.584703][ T2753] dump_stack_lvl+0x1e2/0x24b [ 457.589361][ T2753] ? bfq_pos_tree_add_move+0x43e/0x43e [ 457.594806][ T2753] ? selinux_kernfs_init_security+0x1a8/0x760 [ 457.601120][ T2753] dump_stack+0x15/0x17 [ 457.605254][ T2753] should_fail+0x3c0/0x510 [ 457.609792][ T2753] ? __kernfs_new_node+0x99/0x6e0 [ 457.615068][ T2753] __should_failslab+0x9f/0xe0 [ 457.619842][ T2753] should_failslab+0x9/0x20 [ 457.624621][ T2753] __kmalloc_track_caller+0x5f/0x350 [ 457.629895][ T2753] kstrdup_const+0x55/0x90 [ 457.634300][ T2753] __kernfs_new_node+0x99/0x6e0 [ 457.639360][ T2753] ? is_module_text_address+0xe1/0x140 [ 457.644985][ T2753] ? kernfs_new_node+0x170/0x170 [ 457.650093][ T2753] ? ptr_to_hashval+0x60/0x60 [ 457.654936][ T2753] ? mutex_lock+0xb2/0x1e0 [ 457.660127][ T2753] ? snprintf+0xd6/0x120 [ 457.664354][ T2753] ? mutex_unlock+0x29/0xf0 [ 457.669093][ T2753] kernfs_new_node+0x97/0x170 [ 457.673756][ T2753] __kernfs_create_file+0x4a/0x270 [ 457.679223][ T2753] cgroup_addrm_files+0xab8/0xfe0 [ 457.684234][ T2753] ? ____kasan_kmalloc+0xdc/0x110 [ 457.689319][ T2753] ? __kasan_kmalloc+0x9/0x10 [ 457.693977][ T2753] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 457.699703][ T2753] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 457.705947][ T2753] ? delete_node+0x759/0x7b0 [ 457.710833][ T2753] ? __kasan_check_read+0x11/0x20 [ 457.715952][ T2753] ? idr_replace+0x1c4/0x230 [ 457.720637][ T2753] ? idr_get_next+0x4b0/0x4b0 [ 457.725328][ T2753] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 457.730628][ T2753] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 457.735807][ T2753] css_populate_dir+0x137/0x370 [ 457.740642][ T2753] cgroup_apply_control_enable+0x8b9/0x12f0 [ 457.746520][ T2753] cgroup_apply_control+0x8e/0x7e0 [ 457.751699][ T2753] ? css_next_child+0x160/0x160 [ 457.756528][ T2753] ? stack_trace_save+0x12d/0x1f0 [ 457.761535][ T2753] ? io_schedule+0x120/0x120 [ 457.766200][ T2753] ? kernfs_fop_write_iter+0x15e/0x410 [ 457.771809][ T2753] ? __kasan_check_write+0x14/0x20 [ 457.776927][ T2753] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 457.782220][ T2753] cgroup_subtree_control_write+0xd19/0x1310 [ 457.788394][ T2753] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 457.794482][ T2753] ? __kasan_check_write+0x14/0x20 [ 457.799581][ T2753] ? _copy_from_iter+0x3fb/0xd60 [ 457.804507][ T2753] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 457.810662][ T2753] cgroup_file_write+0x28e/0x590 [ 457.815630][ T2753] ? cgroup_seqfile_stop+0xc0/0xc0 [ 457.820822][ T2753] ? mutex_trylock+0x180/0x180 [ 457.825571][ T2753] ? __kasan_check_write+0x14/0x20 [ 457.830665][ T2753] kernfs_fop_write_iter+0x2d0/0x410 [ 457.836018][ T2753] ? cgroup_seqfile_stop+0xc0/0xc0 [ 457.841135][ T2753] vfs_write+0xc4a/0xf80 [ 457.845447][ T2753] ? slab_free_freelist_hook+0xcc/0x1a0 [ 457.851002][ T2753] ? kernel_write+0x420/0x420 [ 457.855673][ T2753] ? do_sys_openat2+0x397/0x470 [ 457.860538][ T2753] ? __kasan_check_read+0x11/0x20 [ 457.865569][ T2753] ? __fdget_pos+0x27e/0x310 [ 457.870318][ T2753] ksys_write+0x198/0x2c0 [ 457.874639][ T2753] ? __ia32_sys_read+0x90/0x90 [ 457.879393][ T2753] ? debug_smp_processor_id+0x17/0x20 [ 457.884760][ T2753] __x64_sys_write+0x7b/0x90 [ 457.889326][ T2753] do_syscall_64+0x34/0x70 [ 457.893804][ T2753] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 457.899672][ T2753] RIP: 0033:0x7f48883727a9 [ 457.904175][ T2753] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 457.923887][ T2753] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 457.932367][ T2753] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 457.940323][ T2753] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 457.948273][ T2753] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 457.956221][ T2753] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 457.964273][ T2753] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000015 [ 457.972716][ T2753] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 458.017402][ T2757] FAULT_INJECTION: forcing a failure. [ 458.017402][ T2757] name failslab, interval 1, probability 0, space 0, times 0 [ 458.030409][ T2757] CPU: 1 PID: 2757 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 458.040921][ T2757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 458.050970][ T2757] Call Trace: [ 458.054290][ T2757] dump_stack_lvl+0x1e2/0x24b [ 458.058989][ T2757] ? bfq_pos_tree_add_move+0x43e/0x43e [ 458.064452][ T2757] ? selinux_kernfs_init_security+0x1a8/0x760 [ 458.070533][ T2757] dump_stack+0x15/0x17 [ 458.074674][ T2757] should_fail+0x3c0/0x510 [ 458.079073][ T2757] ? __kernfs_new_node+0x99/0x6e0 [ 458.084320][ T2757] __should_failslab+0x9f/0xe0 [ 458.089198][ T2757] should_failslab+0x9/0x20 [ 458.093813][ T2757] __kmalloc_track_caller+0x5f/0x350 [ 458.099192][ T2757] kstrdup_const+0x55/0x90 [ 458.103784][ T2757] __kernfs_new_node+0x99/0x6e0 [ 458.108643][ T2757] ? is_module_text_address+0xe1/0x140 [ 458.114275][ T2757] ? kernfs_new_node+0x170/0x170 [ 458.119233][ T2757] ? ptr_to_hashval+0x60/0x60 [ 458.123929][ T2757] ? mutex_lock+0xb2/0x1e0 [ 458.129061][ T2757] ? snprintf+0xd6/0x120 [ 458.133297][ T2757] ? mutex_unlock+0x29/0xf0 [ 458.137798][ T2757] kernfs_new_node+0x97/0x170 [ 458.142643][ T2757] __kernfs_create_file+0x4a/0x270 [ 458.148243][ T2757] cgroup_addrm_files+0xab8/0xfe0 [ 458.153268][ T2757] ? ____kasan_kmalloc+0xdc/0x110 [ 458.158381][ T2757] ? __kasan_kmalloc+0x9/0x10 [ 458.163176][ T2757] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 458.168744][ T2757] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 458.175035][ T2757] ? delete_node+0x759/0x7b0 [ 458.179635][ T2757] ? __kasan_check_read+0x11/0x20 [ 458.184644][ T2757] ? idr_replace+0x1c4/0x230 [ 458.189317][ T2757] ? idr_get_next+0x4b0/0x4b0 [ 458.194175][ T2757] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 458.199284][ T2757] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 458.204480][ T2757] css_populate_dir+0x137/0x370 [ 458.209355][ T2757] cgroup_apply_control_enable+0x8b9/0x12f0 [ 458.215250][ T2757] cgroup_apply_control+0x8e/0x7e0 [ 458.220375][ T2757] ? css_next_child+0x160/0x160 [ 458.225428][ T2757] ? stack_trace_save+0x12d/0x1f0 [ 458.230459][ T2757] ? io_schedule+0x120/0x120 [ 458.235192][ T2757] ? kernfs_fop_write_iter+0x15e/0x410 [ 458.240634][ T2757] ? __kasan_check_write+0x14/0x20 [ 458.245730][ T2757] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 458.250998][ T2757] cgroup_subtree_control_write+0xd19/0x1310 [ 458.257086][ T2757] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 458.263481][ T2757] ? __kasan_check_write+0x14/0x20 [ 458.268692][ T2757] ? _copy_from_iter+0x3fb/0xd60 [ 458.273635][ T2757] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 458.279618][ T2757] cgroup_file_write+0x28e/0x590 [ 458.284555][ T2757] ? cgroup_seqfile_stop+0xc0/0xc0 [ 458.289869][ T2757] ? mutex_trylock+0x180/0x180 [ 458.294643][ T2757] ? __kasan_check_write+0x14/0x20 [ 458.299872][ T2757] kernfs_fop_write_iter+0x2d0/0x410 [ 458.305172][ T2757] ? cgroup_seqfile_stop+0xc0/0xc0 [ 458.310300][ T2757] vfs_write+0xc4a/0xf80 [ 458.314535][ T2757] ? slab_free_freelist_hook+0xcc/0x1a0 [ 458.320161][ T2757] ? kernel_write+0x420/0x420 [ 458.324842][ T2757] ? do_sys_openat2+0x397/0x470 [ 458.329694][ T2757] ? __kasan_check_read+0x11/0x20 [ 458.334707][ T2757] ? __fdget_pos+0x27e/0x310 [ 458.339286][ T2757] ksys_write+0x198/0x2c0 [ 458.343603][ T2757] ? __ia32_sys_read+0x90/0x90 [ 458.348449][ T2757] ? debug_smp_processor_id+0x17/0x20 [ 458.353813][ T2757] __x64_sys_write+0x7b/0x90 [ 458.358413][ T2757] do_syscall_64+0x34/0x70 [ 458.362825][ T2757] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 458.368703][ T2757] RIP: 0033:0x7f48883727a9 [ 458.373125][ T2757] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 458.392715][ T2757] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 458.401121][ T2757] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 458.409472][ T2757] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 458.417650][ T2757] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 458.425753][ T2757] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 458.433724][ T2757] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001c [ 458.441806][ T2757] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 458.487395][ T2760] FAULT_INJECTION: forcing a failure. [ 458.487395][ T2760] name failslab, interval 1, probability 0, space 0, times 0 [ 458.500305][ T2760] CPU: 0 PID: 2760 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 458.511018][ T2760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 458.521378][ T2760] Call Trace: [ 458.524674][ T2760] dump_stack_lvl+0x1e2/0x24b [ 458.529330][ T2760] ? panic+0x7d7/0x7d7 [ 458.533391][ T2760] ? bfq_pos_tree_add_move+0x43e/0x43e [ 458.538922][ T2760] ? selinux_kernfs_init_security+0x1a8/0x760 [ 458.544984][ T2760] dump_stack+0x15/0x17 [ 458.549325][ T2760] should_fail+0x3c0/0x510 [ 458.553726][ T2760] __should_failslab+0x9f/0xe0 [ 458.558470][ T2760] should_failslab+0x9/0x20 [ 458.562974][ T2760] kmem_cache_alloc+0x3f/0x300 [ 458.567745][ T2760] ? __kernfs_new_node+0xdb/0x6e0 [ 458.572767][ T2760] __kernfs_new_node+0xdb/0x6e0 [ 458.577785][ T2760] ? is_module_text_address+0xe1/0x140 [ 458.583480][ T2760] ? kernfs_new_node+0x170/0x170 [ 458.588394][ T2760] ? ptr_to_hashval+0x60/0x60 [ 458.593054][ T2760] ? arch_stack_walk+0xf8/0x140 [ 458.598036][ T2760] ? snprintf+0xd6/0x120 [ 458.602287][ T2760] kernfs_new_node+0x97/0x170 [ 458.606973][ T2760] __kernfs_create_file+0x4a/0x270 [ 458.612174][ T2760] cgroup_addrm_files+0xab8/0xfe0 [ 458.617277][ T2760] ? ____kasan_kmalloc+0xdc/0x110 [ 458.622291][ T2760] ? __kasan_kmalloc+0x9/0x10 [ 458.627282][ T2760] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 458.632824][ T2760] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 458.638961][ T2760] ? delete_node+0x759/0x7b0 [ 458.643619][ T2760] ? __kasan_check_read+0x11/0x20 [ 458.648640][ T2760] ? delete_node+0x759/0x7b0 [ 458.653553][ T2760] ? __kasan_check_write+0x14/0x20 [ 458.658651][ T2760] ? idr_replace+0x1c4/0x230 [ 458.663218][ T2760] ? idr_get_next+0x4b0/0x4b0 [ 458.668217][ T2760] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 458.673304][ T2760] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 458.678477][ T2760] css_populate_dir+0x137/0x370 [ 458.683310][ T2760] cgroup_apply_control_enable+0x8b9/0x12f0 [ 458.689184][ T2760] cgroup_apply_control+0x8e/0x7e0 [ 458.694305][ T2760] ? css_next_child+0x160/0x160 [ 458.699235][ T2760] ? io_schedule+0x120/0x120 [ 458.703800][ T2760] ? kernfs_fop_write_iter+0x15e/0x410 [ 458.709244][ T2760] ? __kasan_check_write+0x14/0x20 [ 458.714343][ T2760] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 458.719609][ T2760] cgroup_subtree_control_write+0xd19/0x1310 [ 458.725594][ T2760] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 458.731551][ T2760] ? __kasan_check_write+0x14/0x20 [ 458.736741][ T2760] ? _copy_from_iter+0x3fb/0xd60 [ 458.741657][ T2760] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 458.747633][ T2760] cgroup_file_write+0x28e/0x590 [ 458.752731][ T2760] ? cgroup_seqfile_stop+0xc0/0xc0 [ 458.758077][ T2760] ? mutex_trylock+0x180/0x180 [ 458.762871][ T2760] ? __kasan_check_write+0x14/0x20 [ 458.767959][ T2760] kernfs_fop_write_iter+0x2d0/0x410 [ 458.773305][ T2760] ? cgroup_seqfile_stop+0xc0/0xc0 [ 458.778574][ T2760] vfs_write+0xc4a/0xf80 [ 458.782965][ T2760] ? kernel_write+0x420/0x420 [ 458.787621][ T2760] ? do_sys_openat2+0x397/0x470 [ 458.792452][ T2760] ? __kasan_check_read+0x11/0x20 [ 458.797455][ T2760] ? __fdget_pos+0x27e/0x310 [ 458.802021][ T2760] ksys_write+0x198/0x2c0 [ 458.806418][ T2760] ? __ia32_sys_read+0x90/0x90 [ 458.811157][ T2760] ? debug_smp_processor_id+0x17/0x20 [ 458.816506][ T2760] __x64_sys_write+0x7b/0x90 [ 458.821167][ T2760] do_syscall_64+0x34/0x70 [ 458.825564][ T2760] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 458.831496][ T2760] RIP: 0033:0x7f48883727a9 [ 458.836072][ T2760] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 458.855999][ T2760] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 458.864602][ T2760] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 458.872610][ T2760] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 458.881103][ T2760] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 458.889812][ T2760] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 458.897868][ T2760] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001d [ 458.907172][ T2760] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 458.937402][ T2761] FAULT_INJECTION: forcing a failure. [ 458.937402][ T2761] name failslab, interval 1, probability 0, space 0, times 0 [ 458.951233][ T2761] CPU: 0 PID: 2761 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 458.961835][ T2761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 458.971887][ T2761] Call Trace: [ 458.975209][ T2761] dump_stack_lvl+0x1e2/0x24b [ 458.979895][ T2761] ? bfq_pos_tree_add_move+0x43e/0x43e [ 458.985362][ T2761] ? selinux_kernfs_init_security+0x1a8/0x760 [ 458.992491][ T2761] dump_stack+0x15/0x17 [ 458.996832][ T2761] should_fail+0x3c0/0x510 [ 459.001276][ T2761] ? __kernfs_new_node+0x99/0x6e0 [ 459.006605][ T2761] __should_failslab+0x9f/0xe0 [ 459.011365][ T2761] should_failslab+0x9/0x20 [ 459.015860][ T2761] __kmalloc_track_caller+0x5f/0x350 [ 459.021485][ T2761] kstrdup_const+0x55/0x90 [ 459.026237][ T2761] __kernfs_new_node+0x99/0x6e0 [ 459.031456][ T2761] ? is_module_text_address+0xe1/0x140 [ 459.037192][ T2761] ? kernfs_new_node+0x170/0x170 [ 459.044155][ T2761] ? ptr_to_hashval+0x60/0x60 [ 459.049700][ T2761] ? mutex_lock+0xb2/0x1e0 [ 459.054212][ T2761] ? snprintf+0xd6/0x120 [ 459.058449][ T2761] ? mutex_unlock+0x29/0xf0 [ 459.062996][ T2761] kernfs_new_node+0x97/0x170 [ 459.068124][ T2761] __kernfs_create_file+0x4a/0x270 [ 459.073404][ T2761] cgroup_addrm_files+0xab8/0xfe0 [ 459.078432][ T2761] ? ____kasan_kmalloc+0xdc/0x110 [ 459.083969][ T2761] ? __kasan_kmalloc+0x9/0x10 [ 459.088629][ T2761] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 459.094379][ T2761] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 459.100787][ T2761] ? delete_node+0x759/0x7b0 [ 459.105377][ T2761] ? __kasan_check_read+0x11/0x20 [ 459.110413][ T2761] ? idr_replace+0x1c4/0x230 [ 459.115079][ T2761] ? idr_get_next+0x4b0/0x4b0 [ 459.119918][ T2761] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 459.125042][ T2761] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 459.130229][ T2761] css_populate_dir+0x137/0x370 [ 459.135176][ T2761] cgroup_apply_control_enable+0x8b9/0x12f0 [ 459.141077][ T2761] cgroup_apply_control+0x8e/0x7e0 [ 459.146177][ T2761] ? css_next_child+0x160/0x160 [ 459.151384][ T2761] ? stack_trace_save+0x12d/0x1f0 [ 459.156411][ T2761] ? io_schedule+0x120/0x120 [ 459.160981][ T2761] ? kernfs_fop_write_iter+0x15e/0x410 [ 459.166427][ T2761] ? __kasan_check_write+0x14/0x20 [ 459.171709][ T2761] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 459.177137][ T2761] cgroup_subtree_control_write+0xd19/0x1310 [ 459.183167][ T2761] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 459.189160][ T2761] ? __kasan_check_write+0x14/0x20 [ 459.194264][ T2761] ? _copy_from_iter+0x3fb/0xd60 [ 459.199193][ T2761] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 459.205159][ T2761] cgroup_file_write+0x28e/0x590 [ 459.210303][ T2761] ? cgroup_seqfile_stop+0xc0/0xc0 [ 459.215405][ T2761] ? mutex_trylock+0x180/0x180 [ 459.220155][ T2761] ? __kasan_check_write+0x14/0x20 [ 459.225279][ T2761] kernfs_fop_write_iter+0x2d0/0x410 [ 459.230700][ T2761] ? cgroup_seqfile_stop+0xc0/0xc0 [ 459.235807][ T2761] vfs_write+0xc4a/0xf80 [ 459.240032][ T2761] ? slab_free_freelist_hook+0xcc/0x1a0 [ 459.245568][ T2761] ? kernel_write+0x420/0x420 [ 459.250235][ T2761] ? do_sys_openat2+0x397/0x470 [ 459.255210][ T2761] ? __kasan_check_read+0x11/0x20 [ 459.260231][ T2761] ? __fdget_pos+0x27e/0x310 [ 459.264824][ T2761] ksys_write+0x198/0x2c0 [ 459.269167][ T2761] ? __ia32_sys_read+0x90/0x90 [ 459.274004][ T2761] ? debug_smp_processor_id+0x17/0x20 [ 459.279379][ T2761] __x64_sys_write+0x7b/0x90 [ 459.283956][ T2761] do_syscall_64+0x34/0x70 [ 459.290269][ T2761] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 459.296147][ T2761] RIP: 0033:0x7f48883727a9 [ 459.300552][ T2761] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 459.320254][ T2761] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 459.328825][ T2761] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 459.336908][ T2761] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 459.345148][ T2761] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 459.353362][ T2761] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 459.361505][ T2761] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000010 [ 459.369679][ T2761] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 459.417264][ T2759] FAULT_INJECTION: forcing a failure. [ 459.417264][ T2759] name failslab, interval 1, probability 0, space 0, times 0 [ 459.430158][ T2759] CPU: 1 PID: 2759 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 459.440547][ T2759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 459.450762][ T2759] Call Trace: [ 459.454349][ T2759] dump_stack_lvl+0x1e2/0x24b [ 459.459127][ T2759] ? bfq_pos_tree_add_move+0x43e/0x43e [ 459.464578][ T2759] ? stack_trace_save+0x1f0/0x1f0 [ 459.469693][ T2759] ? arch_stack_walk+0x106/0x140 [ 459.474635][ T2759] dump_stack+0x15/0x17 [ 459.478810][ T2759] should_fail+0x3c0/0x510 [ 459.483216][ T2759] ? __kernfs_new_node+0x99/0x6e0 [ 459.488443][ T2759] __should_failslab+0x9f/0xe0 [ 459.493198][ T2759] should_failslab+0x9/0x20 [ 459.497827][ T2759] __kmalloc_track_caller+0x5f/0x350 [ 459.503113][ T2759] kstrdup_const+0x55/0x90 [ 459.507787][ T2759] __kernfs_new_node+0x99/0x6e0 [ 459.512971][ T2759] ? is_module_text_address+0xe1/0x140 [ 459.518443][ T2759] ? kernfs_new_node+0x170/0x170 [ 459.523584][ T2759] ? ptr_to_hashval+0x60/0x60 [ 459.528540][ T2759] ? arch_stack_walk+0xf8/0x140 [ 459.533490][ T2759] ? snprintf+0xd6/0x120 [ 459.537737][ T2759] kernfs_new_node+0x97/0x170 [ 459.542397][ T2759] __kernfs_create_file+0x4a/0x270 [ 459.547511][ T2759] cgroup_addrm_files+0xab8/0xfe0 [ 459.552534][ T2759] ? ____kasan_kmalloc+0xdc/0x110 [ 459.557626][ T2759] ? __kasan_kmalloc+0x9/0x10 [ 459.562293][ T2759] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 459.567828][ T2759] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 459.573965][ T2759] ? delete_node+0x759/0x7b0 [ 459.578537][ T2759] ? __kasan_check_read+0x11/0x20 [ 459.583542][ T2759] ? delete_node+0x759/0x7b0 [ 459.588116][ T2759] ? __kasan_check_write+0x14/0x20 [ 459.593220][ T2759] ? idr_replace+0x1c4/0x230 [ 459.597855][ T2759] ? idr_get_next+0x4b0/0x4b0 [ 459.602602][ T2759] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 459.607623][ T2759] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 459.613076][ T2759] css_populate_dir+0x137/0x370 [ 459.617932][ T2759] cgroup_apply_control_enable+0x8b9/0x12f0 [ 459.623836][ T2759] cgroup_apply_control+0x8e/0x7e0 [ 459.628966][ T2759] ? css_next_child+0x160/0x160 [ 459.633821][ T2759] ? stack_trace_save+0x12d/0x1f0 [ 459.638850][ T2759] ? io_schedule+0x120/0x120 [ 459.643639][ T2759] ? kernfs_fop_write_iter+0x15e/0x410 [ 459.649109][ T2759] ? __kasan_check_write+0x14/0x20 [ 459.654317][ T2759] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 459.659603][ T2759] cgroup_subtree_control_write+0xd19/0x1310 [ 459.666189][ T2759] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 459.672879][ T2759] ? __kasan_check_write+0x14/0x20 [ 459.678295][ T2759] ? _copy_from_iter+0x3fb/0xd60 [ 459.683348][ T2759] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 459.689519][ T2759] cgroup_file_write+0x28e/0x590 [ 459.694571][ T2759] ? cgroup_seqfile_stop+0xc0/0xc0 [ 459.699767][ T2759] ? mutex_trylock+0x180/0x180 [ 459.704525][ T2759] ? __kasan_check_write+0x14/0x20 [ 459.709686][ T2759] kernfs_fop_write_iter+0x2d0/0x410 [ 459.715107][ T2759] ? cgroup_seqfile_stop+0xc0/0xc0 [ 459.720622][ T2759] vfs_write+0xc4a/0xf80 [ 459.724858][ T2759] ? slab_free_freelist_hook+0xcc/0x1a0 [ 459.730515][ T2759] ? kernel_write+0x420/0x420 [ 459.735182][ T2759] ? do_sys_openat2+0x397/0x470 [ 459.740115][ T2759] ? __kasan_check_read+0x11/0x20 [ 459.745221][ T2759] ? __fdget_pos+0x27e/0x310 [ 459.750038][ T2759] ksys_write+0x198/0x2c0 [ 459.754377][ T2759] ? __ia32_sys_read+0x90/0x90 [ 459.759140][ T2759] ? debug_smp_processor_id+0x17/0x20 [ 459.764515][ T2759] __x64_sys_write+0x7b/0x90 [ 459.769183][ T2759] do_syscall_64+0x34/0x70 [ 459.773580][ T2759] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 459.779455][ T2759] RIP: 0033:0x7f48883727a9 [ 459.783872][ T2759] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 459.803461][ T2759] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 459.811870][ T2759] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 459.819931][ T2759] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 459.827983][ T2759] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 459.836040][ T2759] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 459.844192][ T2759] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000016 [ 459.852414][ T2759] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 459.897188][ T2758] FAULT_INJECTION: forcing a failure. [ 459.897188][ T2758] name failslab, interval 1, probability 0, space 0, times 0 [ 459.910230][ T2758] CPU: 1 PID: 2758 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 459.920627][ T2758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 459.930986][ T2758] Call Trace: [ 459.934273][ T2758] dump_stack_lvl+0x1e2/0x24b [ 459.938942][ T2758] ? bfq_pos_tree_add_move+0x43e/0x43e [ 459.944387][ T2758] ? selinux_kernfs_init_security+0x1a8/0x760 [ 459.950460][ T2758] dump_stack+0x15/0x17 [ 459.954631][ T2758] should_fail+0x3c0/0x510 [ 459.959143][ T2758] ? __kernfs_new_node+0x99/0x6e0 [ 459.964239][ T2758] __should_failslab+0x9f/0xe0 [ 459.969239][ T2758] should_failslab+0x9/0x20 [ 459.974415][ T2758] __kmalloc_track_caller+0x5f/0x350 [ 459.979719][ T2758] kstrdup_const+0x55/0x90 [ 459.984150][ T2758] __kernfs_new_node+0x99/0x6e0 [ 459.989056][ T2758] ? is_module_text_address+0xe1/0x140 [ 459.994555][ T2758] ? kernfs_new_node+0x170/0x170 [ 459.999579][ T2758] ? ptr_to_hashval+0x60/0x60 [ 460.004245][ T2758] ? mutex_lock+0xb2/0x1e0 [ 460.008645][ T2758] ? snprintf+0xd6/0x120 [ 460.012975][ T2758] ? mutex_unlock+0x29/0xf0 [ 460.017657][ T2758] kernfs_new_node+0x97/0x170 [ 460.022321][ T2758] __kernfs_create_file+0x4a/0x270 [ 460.027562][ T2758] cgroup_addrm_files+0xab8/0xfe0 [ 460.032701][ T2758] ? ____kasan_kmalloc+0xdc/0x110 [ 460.037732][ T2758] ? __kasan_kmalloc+0x9/0x10 [ 460.042406][ T2758] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 460.047949][ T2758] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 460.054097][ T2758] ? delete_node+0x759/0x7b0 [ 460.058685][ T2758] ? __kasan_check_read+0x11/0x20 [ 460.063706][ T2758] ? idr_replace+0x1c4/0x230 [ 460.068278][ T2758] ? idr_get_next+0x4b0/0x4b0 [ 460.072933][ T2758] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 460.077940][ T2758] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 460.083139][ T2758] css_populate_dir+0x137/0x370 [ 460.087986][ T2758] cgroup_apply_control_enable+0x8b9/0x12f0 [ 460.094178][ T2758] cgroup_apply_control+0x8e/0x7e0 [ 460.099421][ T2758] ? css_next_child+0x160/0x160 [ 460.104592][ T2758] ? stack_trace_save+0x12d/0x1f0 [ 460.109796][ T2758] ? io_schedule+0x120/0x120 [ 460.114386][ T2758] ? kernfs_fop_write_iter+0x15e/0x410 [ 460.119843][ T2758] ? __kasan_check_write+0x14/0x20 [ 460.125147][ T2758] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 460.130629][ T2758] cgroup_subtree_control_write+0xd19/0x1310 [ 460.136751][ T2758] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 460.142730][ T2758] ? __kasan_check_write+0x14/0x20 [ 460.148003][ T2758] ? _copy_from_iter+0x3fb/0xd60 [ 460.153243][ T2758] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 460.159489][ T2758] cgroup_file_write+0x28e/0x590 [ 460.164545][ T2758] ? cgroup_seqfile_stop+0xc0/0xc0 [ 460.169669][ T2758] ? mutex_trylock+0x180/0x180 [ 460.174448][ T2758] ? __kasan_check_write+0x14/0x20 [ 460.179582][ T2758] kernfs_fop_write_iter+0x2d0/0x410 [ 460.184870][ T2758] ? cgroup_seqfile_stop+0xc0/0xc0 [ 460.189978][ T2758] vfs_write+0xc4a/0xf80 [ 460.194364][ T2758] ? slab_free_freelist_hook+0xcc/0x1a0 [ 460.199905][ T2758] ? kernel_write+0x420/0x420 [ 460.204677][ T2758] ? do_sys_openat2+0x397/0x470 [ 460.209517][ T2758] ? __kasan_check_read+0x11/0x20 [ 460.214531][ T2758] ? __fdget_pos+0x27e/0x310 [ 460.219107][ T2758] ksys_write+0x198/0x2c0 [ 460.223420][ T2758] ? __ia32_sys_read+0x90/0x90 [ 460.228402][ T2758] ? debug_smp_processor_id+0x17/0x20 [ 460.233935][ T2758] __x64_sys_write+0x7b/0x90 [ 460.238610][ T2758] do_syscall_64+0x34/0x70 [ 460.243038][ T2758] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 460.248916][ T2758] RIP: 0033:0x7f48883727a9 [ 460.253312][ T2758] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 460.273079][ T2758] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 460.281519][ T2758] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 460.289716][ T2758] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 460.297685][ T2758] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 460.305650][ T2758] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 460.313758][ T2758] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000013 [ 460.321972][ T2758] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 460.367180][ T2756] FAULT_INJECTION: forcing a failure. [ 460.367180][ T2756] name failslab, interval 1, probability 0, space 0, times 0 [ 460.380041][ T2756] CPU: 1 PID: 2756 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 460.390450][ T2756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 460.400489][ T2756] Call Trace: [ 460.403893][ T2756] dump_stack_lvl+0x1e2/0x24b [ 460.408581][ T2756] ? panic+0x7d7/0x7d7 [ 460.412647][ T2756] ? arch_stack_walk+0x106/0x140 [ 460.417717][ T2756] ? bfq_pos_tree_add_move+0x43e/0x43e [ 460.423564][ T2756] ? do_syscall_64+0x34/0x70 [ 460.428298][ T2756] dump_stack+0x15/0x17 [ 460.432445][ T2756] should_fail+0x3c0/0x510 [ 460.436876][ T2756] __should_failslab+0x9f/0xe0 [ 460.441627][ T2756] should_failslab+0x9/0x20 [ 460.446129][ T2756] kmem_cache_alloc+0x3f/0x300 [ 460.450881][ T2756] ? __kernfs_new_node+0xdb/0x6e0 [ 460.455886][ T2756] __kernfs_new_node+0xdb/0x6e0 [ 460.460897][ T2756] ? is_module_text_address+0xe1/0x140 [ 460.466635][ T2756] ? kernfs_new_node+0x170/0x170 [ 460.471673][ T2756] ? ptr_to_hashval+0x60/0x60 [ 460.476390][ T2756] ? arch_stack_walk+0xf8/0x140 [ 460.481267][ T2756] ? snprintf+0xd6/0x120 [ 460.485602][ T2756] kernfs_new_node+0x97/0x170 [ 460.490648][ T2756] __kernfs_create_file+0x4a/0x270 [ 460.495977][ T2756] cgroup_addrm_files+0xab8/0xfe0 [ 460.501347][ T2756] ? ____kasan_kmalloc+0xdc/0x110 [ 460.506481][ T2756] ? __kasan_kmalloc+0x9/0x10 [ 460.511456][ T2756] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 460.517027][ T2756] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 460.523264][ T2756] ? delete_node+0x759/0x7b0 [ 460.527852][ T2756] ? __kasan_check_read+0x11/0x20 [ 460.532870][ T2756] ? delete_node+0x759/0x7b0 [ 460.537453][ T2756] ? __kasan_check_write+0x14/0x20 [ 460.542578][ T2756] ? idr_replace+0x1c4/0x230 [ 460.547372][ T2756] ? idr_get_next+0x4b0/0x4b0 [ 460.552047][ T2756] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 460.557913][ T2756] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 460.563193][ T2756] css_populate_dir+0x137/0x370 [ 460.568159][ T2756] cgroup_apply_control_enable+0x8b9/0x12f0 [ 460.574151][ T2756] cgroup_apply_control+0x8e/0x7e0 [ 460.579555][ T2756] ? css_next_child+0x160/0x160 [ 460.584407][ T2756] ? stack_trace_save+0x12d/0x1f0 [ 460.589771][ T2756] ? io_schedule+0x120/0x120 [ 460.594462][ T2756] ? kernfs_fop_write_iter+0x15e/0x410 [ 460.599939][ T2756] ? __kasan_check_write+0x14/0x20 [ 460.605180][ T2756] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 460.610590][ T2756] cgroup_subtree_control_write+0xd19/0x1310 [ 460.616566][ T2756] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 460.622803][ T2756] ? __kasan_check_write+0x14/0x20 [ 460.628183][ T2756] ? _copy_from_iter+0x3fb/0xd60 [ 460.633135][ T2756] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 460.639133][ T2756] cgroup_file_write+0x28e/0x590 [ 460.644066][ T2756] ? cgroup_seqfile_stop+0xc0/0xc0 [ 460.649366][ T2756] ? mutex_trylock+0x180/0x180 [ 460.654213][ T2756] ? __kasan_check_write+0x14/0x20 [ 460.659316][ T2756] kernfs_fop_write_iter+0x2d0/0x410 [ 460.664586][ T2756] ? cgroup_seqfile_stop+0xc0/0xc0 [ 460.669682][ T2756] vfs_write+0xc4a/0xf80 [ 460.673985][ T2756] ? slab_free_freelist_hook+0xcc/0x1a0 [ 460.679581][ T2756] ? kernel_write+0x420/0x420 [ 460.684278][ T2756] ? do_sys_openat2+0x397/0x470 [ 460.689123][ T2756] ? __kasan_check_read+0x11/0x20 [ 460.694746][ T2756] ? __fdget_pos+0x27e/0x310 [ 460.699345][ T2756] ksys_write+0x198/0x2c0 [ 460.703800][ T2756] ? __ia32_sys_read+0x90/0x90 [ 460.708543][ T2756] ? debug_smp_processor_id+0x17/0x20 [ 460.713919][ T2756] __x64_sys_write+0x7b/0x90 [ 460.718492][ T2756] do_syscall_64+0x34/0x70 [ 460.722897][ T2756] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 460.728891][ T2756] RIP: 0033:0x7f48883727a9 [ 460.733490][ T2756] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 460.753088][ T2756] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 460.761700][ T2756] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 460.769679][ T2756] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 460.777651][ T2756] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 460.785609][ T2756] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 460.793590][ T2756] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000014 [ 460.802566][ T2756] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 460.847562][ T2766] FAULT_INJECTION: forcing a failure. [ 460.847562][ T2766] name failslab, interval 1, probability 0, space 0, times 0 [ 460.860273][ T2766] CPU: 0 PID: 2766 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 460.870663][ T2766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 460.880719][ T2766] Call Trace: [ 460.884124][ T2766] dump_stack_lvl+0x1e2/0x24b [ 460.888795][ T2766] ? bfq_pos_tree_add_move+0x43e/0x43e [ 460.894336][ T2766] ? selinux_kernfs_init_security+0x1a8/0x760 [ 460.900385][ T2766] dump_stack+0x15/0x17 [ 460.904520][ T2766] should_fail+0x3c0/0x510 [ 460.908931][ T2766] ? __kernfs_new_node+0x99/0x6e0 [ 460.913938][ T2766] __should_failslab+0x9f/0xe0 [ 460.918742][ T2766] should_failslab+0x9/0x20 [ 460.923330][ T2766] __kmalloc_track_caller+0x5f/0x350 [ 460.928642][ T2766] kstrdup_const+0x55/0x90 [ 460.933152][ T2766] __kernfs_new_node+0x99/0x6e0 [ 460.938152][ T2766] ? is_module_text_address+0xe1/0x140 [ 460.943639][ T2766] ? kernfs_new_node+0x170/0x170 [ 460.948565][ T2766] ? ptr_to_hashval+0x60/0x60 [ 460.953223][ T2766] ? mutex_lock+0xb2/0x1e0 [ 460.957628][ T2766] ? snprintf+0xd6/0x120 [ 460.961866][ T2766] ? mutex_unlock+0x29/0xf0 [ 460.966491][ T2766] kernfs_new_node+0x97/0x170 [ 460.971507][ T2766] __kernfs_create_file+0x4a/0x270 [ 460.976732][ T2766] cgroup_addrm_files+0xab8/0xfe0 [ 460.981744][ T2766] ? ____kasan_kmalloc+0xdc/0x110 [ 460.986924][ T2766] ? __kasan_kmalloc+0x9/0x10 [ 460.991673][ T2766] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 460.997219][ T2766] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 461.003632][ T2766] ? delete_node+0x759/0x7b0 [ 461.008219][ T2766] ? __kasan_check_read+0x11/0x20 [ 461.013328][ T2766] ? idr_replace+0x1c4/0x230 [ 461.017977][ T2766] ? idr_get_next+0x4b0/0x4b0 [ 461.022651][ T2766] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 461.027655][ T2766] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 461.032912][ T2766] css_populate_dir+0x137/0x370 [ 461.037772][ T2766] cgroup_apply_control_enable+0x8b9/0x12f0 [ 461.043670][ T2766] cgroup_apply_control+0x8e/0x7e0 [ 461.048779][ T2766] ? css_next_child+0x160/0x160 [ 461.053949][ T2766] ? stack_trace_save+0x12d/0x1f0 [ 461.058963][ T2766] ? io_schedule+0x120/0x120 [ 461.063977][ T2766] ? kernfs_fop_write_iter+0x15e/0x410 [ 461.069466][ T2766] ? __kasan_check_write+0x14/0x20 [ 461.074560][ T2766] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 461.080032][ T2766] cgroup_subtree_control_write+0xd19/0x1310 [ 461.086358][ T2766] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 461.092788][ T2766] ? __kasan_check_write+0x14/0x20 [ 461.097980][ T2766] ? _copy_from_iter+0x3fb/0xd60 [ 461.103108][ T2766] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 461.109927][ T2766] cgroup_file_write+0x28e/0x590 [ 461.115095][ T2766] ? cgroup_seqfile_stop+0xc0/0xc0 [ 461.120290][ T2766] ? mutex_trylock+0x180/0x180 [ 461.125270][ T2766] ? __kasan_check_write+0x14/0x20 [ 461.130390][ T2766] kernfs_fop_write_iter+0x2d0/0x410 [ 461.135671][ T2766] ? cgroup_seqfile_stop+0xc0/0xc0 [ 461.141045][ T2766] vfs_write+0xc4a/0xf80 [ 461.145271][ T2766] ? slab_free_freelist_hook+0xcc/0x1a0 [ 461.150797][ T2766] ? kernel_write+0x420/0x420 [ 461.155541][ T2766] ? do_sys_openat2+0x397/0x470 [ 461.160861][ T2766] ? __kasan_check_read+0x11/0x20 [ 461.165989][ T2766] ? __fdget_pos+0x27e/0x310 [ 461.170574][ T2766] ksys_write+0x198/0x2c0 [ 461.174897][ T2766] ? __ia32_sys_read+0x90/0x90 [ 461.179810][ T2766] ? debug_smp_processor_id+0x17/0x20 [ 461.185186][ T2766] __x64_sys_write+0x7b/0x90 [ 461.189761][ T2766] do_syscall_64+0x34/0x70 [ 461.194159][ T2766] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 461.200025][ T2766] RIP: 0033:0x7f48883727a9 [ 461.204419][ T2766] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 461.224103][ T2766] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 461.232503][ T2766] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 461.240467][ T2766] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 461.248425][ T2766] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 461.256469][ T2766] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 461.264427][ T2766] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000015 [ 461.272784][ T2766] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 461.307913][ T2752] FAULT_INJECTION: forcing a failure. [ 461.307913][ T2752] name failslab, interval 1, probability 0, space 0, times 0 [ 461.320959][ T2752] CPU: 1 PID: 2752 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 461.331735][ T2752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 461.341953][ T2752] Call Trace: [ 461.345623][ T2752] dump_stack_lvl+0x1e2/0x24b [ 461.350410][ T2752] ? panic+0x7d7/0x7d7 [ 461.354567][ T2752] ? bfq_pos_tree_add_move+0x43e/0x43e [ 461.360179][ T2752] ? selinux_kernfs_init_security+0x1a8/0x760 [ 461.366352][ T2752] dump_stack+0x15/0x17 [ 461.370492][ T2752] should_fail+0x3c0/0x510 [ 461.375072][ T2752] __should_failslab+0x9f/0xe0 [ 461.380137][ T2752] should_failslab+0x9/0x20 [ 461.384855][ T2752] kmem_cache_alloc+0x3f/0x300 [ 461.389636][ T2752] ? __kernfs_new_node+0xdb/0x6e0 [ 461.394662][ T2752] __kernfs_new_node+0xdb/0x6e0 [ 461.399532][ T2752] ? is_module_text_address+0xe1/0x140 [ 461.405191][ T2752] ? kernfs_new_node+0x170/0x170 [ 461.410126][ T2752] ? ptr_to_hashval+0x60/0x60 [ 461.414893][ T2752] ? arch_stack_walk+0xf8/0x140 [ 461.419747][ T2752] ? snprintf+0xd6/0x120 [ 461.424003][ T2752] kernfs_new_node+0x97/0x170 [ 461.428757][ T2752] __kernfs_create_file+0x4a/0x270 [ 461.434032][ T2752] cgroup_addrm_files+0xab8/0xfe0 [ 461.439660][ T2752] ? ____kasan_kmalloc+0xdc/0x110 [ 461.444676][ T2752] ? __kasan_kmalloc+0x9/0x10 [ 461.449353][ T2752] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 461.455073][ T2752] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 461.461516][ T2752] ? delete_node+0x759/0x7b0 [ 461.466642][ T2752] ? __kasan_check_read+0x11/0x20 [ 461.471761][ T2752] ? delete_node+0x759/0x7b0 [ 461.476352][ T2752] ? __kasan_check_write+0x14/0x20 [ 461.481749][ T2752] ? idr_replace+0x1c4/0x230 [ 461.486547][ T2752] ? idr_get_next+0x4b0/0x4b0 [ 461.491699][ T2752] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 461.497125][ T2752] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 461.502334][ T2752] css_populate_dir+0x137/0x370 [ 461.507403][ T2752] cgroup_apply_control_enable+0x8b9/0x12f0 [ 461.513574][ T2752] cgroup_apply_control+0x8e/0x7e0 [ 461.518796][ T2752] ? css_next_child+0x160/0x160 [ 461.523655][ T2752] ? io_schedule+0x120/0x120 [ 461.528249][ T2752] ? kernfs_fop_write_iter+0x15e/0x410 [ 461.538552][ T2752] ? __kasan_check_write+0x14/0x20 [ 461.543778][ T2752] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 461.549469][ T2752] cgroup_subtree_control_write+0xd19/0x1310 [ 461.555805][ T2752] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 461.562659][ T2752] ? __kasan_check_write+0x14/0x20 [ 461.569079][ T2752] ? _copy_from_iter+0x3fb/0xd60 [ 461.574033][ T2752] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 461.581234][ T2752] cgroup_file_write+0x28e/0x590 [ 461.586256][ T2752] ? cgroup_seqfile_stop+0xc0/0xc0 [ 461.591783][ T2752] ? mutex_trylock+0x180/0x180 [ 461.596548][ T2752] ? __kasan_check_write+0x14/0x20 [ 461.601924][ T2752] kernfs_fop_write_iter+0x2d0/0x410 [ 461.607397][ T2752] ? cgroup_seqfile_stop+0xc0/0xc0 [ 461.612494][ T2752] vfs_write+0xc4a/0xf80 [ 461.616738][ T2752] ? kernel_write+0x420/0x420 [ 461.621502][ T2752] ? do_sys_openat2+0x397/0x470 [ 461.626635][ T2752] ? __kasan_check_read+0x11/0x20 [ 461.631656][ T2752] ? __fdget_pos+0x27e/0x310 [ 461.636432][ T2752] ksys_write+0x198/0x2c0 [ 461.640748][ T2752] ? __kasan_check_write+0x14/0x20 [ 461.645946][ T2752] ? __ia32_sys_read+0x90/0x90 [ 461.650829][ T2752] ? debug_smp_processor_id+0x17/0x20 [ 461.656288][ T2752] __x64_sys_write+0x7b/0x90 [ 461.660876][ T2752] do_syscall_64+0x34/0x70 [ 461.665275][ T2752] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 461.671707][ T2752] RIP: 0033:0x7f48883727a9 [ 461.676215][ T2752] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 461.696129][ T2752] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 461.704537][ T2752] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 461.712588][ T2752] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 461.720635][ T2752] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 461.728780][ T2752] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 461.736770][ T2752] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000e [ 461.745354][ T2752] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 461.787336][ T2762] FAULT_INJECTION: forcing a failure. [ 461.787336][ T2762] name failslab, interval 1, probability 0, space 0, times 0 [ 461.800109][ T2762] CPU: 0 PID: 2762 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 461.810612][ T2762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 461.820656][ T2762] Call Trace: [ 461.823945][ T2762] dump_stack_lvl+0x1e2/0x24b [ 461.828717][ T2762] ? panic+0x7d7/0x7d7 [ 461.832789][ T2762] ? bfq_pos_tree_add_move+0x43e/0x43e [ 461.838278][ T2762] ? selinux_kernfs_init_security+0x1a8/0x760 [ 461.844519][ T2762] dump_stack+0x15/0x17 [ 461.848668][ T2762] should_fail+0x3c0/0x510 [ 461.853089][ T2762] __should_failslab+0x9f/0xe0 [ 461.857927][ T2762] should_failslab+0x9/0x20 [ 461.862436][ T2762] kmem_cache_alloc+0x3f/0x300 [ 461.867342][ T2762] ? __kernfs_new_node+0xdb/0x6e0 [ 461.872582][ T2762] __kernfs_new_node+0xdb/0x6e0 [ 461.877442][ T2762] ? is_module_text_address+0xe1/0x140 [ 461.882910][ T2762] ? kernfs_new_node+0x170/0x170 [ 461.887891][ T2762] ? ptr_to_hashval+0x60/0x60 [ 461.892590][ T2762] ? arch_stack_walk+0xf8/0x140 [ 461.897436][ T2762] ? snprintf+0xd6/0x120 [ 461.901769][ T2762] kernfs_new_node+0x97/0x170 [ 461.906463][ T2762] __kernfs_create_file+0x4a/0x270 [ 461.911897][ T2762] cgroup_addrm_files+0xab8/0xfe0 [ 461.916916][ T2762] ? ____kasan_kmalloc+0xdc/0x110 [ 461.921936][ T2762] ? __kasan_kmalloc+0x9/0x10 [ 461.926604][ T2762] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 461.932151][ T2762] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 461.938511][ T2762] ? delete_node+0x759/0x7b0 [ 461.943101][ T2762] ? __kasan_check_read+0x11/0x20 [ 461.948113][ T2762] ? delete_node+0x759/0x7b0 [ 461.952784][ T2762] ? __kasan_check_write+0x14/0x20 [ 461.957882][ T2762] ? idr_replace+0x1c4/0x230 [ 461.962719][ T2762] ? idr_get_next+0x4b0/0x4b0 [ 461.967490][ T2762] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 461.972705][ T2762] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 461.977907][ T2762] css_populate_dir+0x137/0x370 [ 461.982759][ T2762] cgroup_apply_control_enable+0x8b9/0x12f0 [ 461.988705][ T2762] cgroup_apply_control+0x8e/0x7e0 [ 461.993989][ T2762] ? css_next_child+0x160/0x160 [ 461.998834][ T2762] ? stack_trace_save+0x12d/0x1f0 [ 462.003972][ T2762] ? io_schedule+0x120/0x120 [ 462.008566][ T2762] ? kernfs_fop_write_iter+0x15e/0x410 [ 462.014103][ T2762] ? __kasan_check_write+0x14/0x20 [ 462.019358][ T2762] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 462.024657][ T2762] cgroup_subtree_control_write+0xd19/0x1310 [ 462.030648][ T2762] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 462.036626][ T2762] ? __kasan_check_write+0x14/0x20 [ 462.041728][ T2762] ? _copy_from_iter+0x3fb/0xd60 [ 462.046667][ T2762] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 462.052646][ T2762] cgroup_file_write+0x28e/0x590 [ 462.057584][ T2762] ? cgroup_seqfile_stop+0xc0/0xc0 [ 462.062952][ T2762] ? mutex_trylock+0x180/0x180 [ 462.067718][ T2762] ? __kasan_check_write+0x14/0x20 [ 462.073097][ T2762] kernfs_fop_write_iter+0x2d0/0x410 [ 462.078649][ T2762] ? cgroup_seqfile_stop+0xc0/0xc0 [ 462.083769][ T2762] vfs_write+0xc4a/0xf80 [ 462.088110][ T2762] ? slab_free_freelist_hook+0xcc/0x1a0 [ 462.093926][ T2762] ? kernel_write+0x420/0x420 [ 462.098597][ T2762] ? do_sys_openat2+0x397/0x470 [ 462.103455][ T2762] ? __kasan_check_read+0x11/0x20 [ 462.108574][ T2762] ? __fdget_pos+0x27e/0x310 [ 462.113354][ T2762] ksys_write+0x198/0x2c0 [ 462.117864][ T2762] ? __ia32_sys_read+0x90/0x90 [ 462.122609][ T2762] ? debug_smp_processor_id+0x17/0x20 [ 462.127972][ T2762] __x64_sys_write+0x7b/0x90 [ 462.132563][ T2762] do_syscall_64+0x34/0x70 [ 462.137002][ T2762] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 462.143359][ T2762] RIP: 0033:0x7f48883727a9 [ 462.147865][ T2762] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 462.168378][ T2762] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 462.176796][ T2762] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 462.184870][ T2762] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 462.192960][ T2762] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 462.200929][ T2762] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 462.208902][ T2762] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001e [ 462.217016][ T2762] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 462.237266][ T2769] FAULT_INJECTION: forcing a failure. [ 462.237266][ T2769] name failslab, interval 1, probability 0, space 0, times 0 [ 462.250430][ T2769] CPU: 0 PID: 2769 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 462.260839][ T2769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 462.271069][ T2769] Call Trace: [ 462.274466][ T2769] dump_stack_lvl+0x1e2/0x24b [ 462.279144][ T2769] ? bfq_pos_tree_add_move+0x43e/0x43e [ 462.284609][ T2769] ? selinux_kernfs_init_security+0x1a8/0x760 [ 462.290774][ T2769] dump_stack+0x15/0x17 [ 462.294947][ T2769] should_fail+0x3c0/0x510 [ 462.299423][ T2769] ? __kernfs_new_node+0x99/0x6e0 [ 462.304432][ T2769] __should_failslab+0x9f/0xe0 [ 462.309820][ T2769] should_failslab+0x9/0x20 [ 462.314539][ T2769] __kmalloc_track_caller+0x5f/0x350 [ 462.320233][ T2769] kstrdup_const+0x55/0x90 [ 462.324670][ T2769] __kernfs_new_node+0x99/0x6e0 [ 462.329640][ T2769] ? is_module_text_address+0xe1/0x140 [ 462.335097][ T2769] ? kernfs_new_node+0x170/0x170 [ 462.340328][ T2769] ? ptr_to_hashval+0x60/0x60 [ 462.345031][ T2769] ? mutex_lock+0xb2/0x1e0 [ 462.349704][ T2769] ? snprintf+0xd6/0x120 [ 462.353931][ T2769] ? mutex_unlock+0x29/0xf0 [ 462.358505][ T2769] kernfs_new_node+0x97/0x170 [ 462.363208][ T2769] __kernfs_create_file+0x4a/0x270 [ 462.368522][ T2769] cgroup_addrm_files+0xab8/0xfe0 [ 462.373682][ T2769] ? ____kasan_kmalloc+0xdc/0x110 [ 462.378787][ T2769] ? __kasan_kmalloc+0x9/0x10 [ 462.383465][ T2769] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 462.389140][ T2769] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 462.395301][ T2769] ? delete_node+0x759/0x7b0 [ 462.399899][ T2769] ? __kasan_check_read+0x11/0x20 [ 462.404909][ T2769] ? idr_replace+0x1c4/0x230 [ 462.409479][ T2769] ? idr_get_next+0x4b0/0x4b0 [ 462.414266][ T2769] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 462.419394][ T2769] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 462.424670][ T2769] css_populate_dir+0x137/0x370 [ 462.429616][ T2769] cgroup_apply_control_enable+0x8b9/0x12f0 [ 462.435510][ T2769] cgroup_apply_control+0x8e/0x7e0 [ 462.440612][ T2769] ? css_next_child+0x160/0x160 [ 462.445448][ T2769] ? stack_trace_save+0x12d/0x1f0 [ 462.450455][ T2769] ? io_schedule+0x120/0x120 [ 462.455032][ T2769] ? kernfs_fop_write_iter+0x15e/0x410 [ 462.460491][ T2769] ? __kasan_check_write+0x14/0x20 [ 462.465607][ T2769] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 462.470985][ T2769] cgroup_subtree_control_write+0xd19/0x1310 [ 462.477055][ T2769] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 462.483035][ T2769] ? __kasan_check_write+0x14/0x20 [ 462.488390][ T2769] ? _copy_from_iter+0x3fb/0xd60 [ 462.493339][ T2769] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 462.499324][ T2769] cgroup_file_write+0x28e/0x590 [ 462.504272][ T2769] ? cgroup_seqfile_stop+0xc0/0xc0 [ 462.509379][ T2769] ? mutex_trylock+0x180/0x180 [ 462.514256][ T2769] ? __kasan_check_write+0x14/0x20 [ 462.519665][ T2769] kernfs_fop_write_iter+0x2d0/0x410 [ 462.524948][ T2769] ? cgroup_seqfile_stop+0xc0/0xc0 [ 462.530167][ T2769] vfs_write+0xc4a/0xf80 [ 462.534423][ T2769] ? slab_free_freelist_hook+0xcc/0x1a0 [ 462.539974][ T2769] ? kernel_write+0x420/0x420 [ 462.544643][ T2769] ? do_sys_openat2+0x397/0x470 [ 462.549476][ T2769] ? __kasan_check_read+0x11/0x20 [ 462.554506][ T2769] ? __fdget_pos+0x27e/0x310 [ 462.559124][ T2769] ksys_write+0x198/0x2c0 [ 462.563460][ T2769] ? __ia32_sys_read+0x90/0x90 [ 462.568214][ T2769] ? debug_smp_processor_id+0x17/0x20 [ 462.573572][ T2769] __x64_sys_write+0x7b/0x90 [ 462.578150][ T2769] do_syscall_64+0x34/0x70 [ 462.582547][ T2769] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 462.588448][ T2769] RIP: 0033:0x7f48883727a9 [ 462.592846][ T2769] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 462.612465][ T2769] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 462.621061][ T2769] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 462.629133][ T2769] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 462.637382][ T2769] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 462.647121][ T2769] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 462.655645][ T2769] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001f [ 462.663863][ T2769] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 462.727557][ T2767] FAULT_INJECTION: forcing a failure. [ 462.727557][ T2767] name failslab, interval 1, probability 0, space 0, times 0 [ 462.740484][ T2767] CPU: 0 PID: 2767 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 462.751216][ T2767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 462.761396][ T2767] Call Trace: [ 462.764709][ T2767] dump_stack_lvl+0x1e2/0x24b [ 462.769497][ T2767] ? panic+0x7d7/0x7d7 [ 462.773917][ T2767] ? bfq_pos_tree_add_move+0x43e/0x43e [ 462.779451][ T2767] ? selinux_kernfs_init_security+0x1a8/0x760 [ 462.785505][ T2767] dump_stack+0x15/0x17 [ 462.789853][ T2767] should_fail+0x3c0/0x510 [ 462.794355][ T2767] __should_failslab+0x9f/0xe0 [ 462.799227][ T2767] should_failslab+0x9/0x20 [ 462.803873][ T2767] kmem_cache_alloc+0x3f/0x300 [ 462.808626][ T2767] ? __kernfs_new_node+0xdb/0x6e0 [ 462.813779][ T2767] __kernfs_new_node+0xdb/0x6e0 [ 462.818650][ T2767] ? is_module_text_address+0xe1/0x140 [ 462.824106][ T2767] ? kernfs_new_node+0x170/0x170 [ 462.829121][ T2767] ? ptr_to_hashval+0x60/0x60 [ 462.833972][ T2767] ? arch_stack_walk+0xf8/0x140 [ 462.838852][ T2767] ? snprintf+0xd6/0x120 [ 462.843182][ T2767] kernfs_new_node+0x97/0x170 [ 462.847947][ T2767] __kernfs_create_file+0x4a/0x270 [ 462.853053][ T2767] cgroup_addrm_files+0xab8/0xfe0 [ 462.858156][ T2767] ? ____kasan_kmalloc+0xdc/0x110 [ 462.863271][ T2767] ? __kasan_kmalloc+0x9/0x10 [ 462.868077][ T2767] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 462.873729][ T2767] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 462.880271][ T2767] ? delete_node+0x759/0x7b0 [ 462.884854][ T2767] ? __kasan_check_read+0x11/0x20 [ 462.889962][ T2767] ? delete_node+0x759/0x7b0 [ 462.894546][ T2767] ? __kasan_check_write+0x14/0x20 [ 462.899846][ T2767] ? idr_replace+0x1c4/0x230 [ 462.904613][ T2767] ? idr_get_next+0x4b0/0x4b0 [ 462.909278][ T2767] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 462.914390][ T2767] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 462.919726][ T2767] css_populate_dir+0x137/0x370 [ 462.924702][ T2767] cgroup_apply_control_enable+0x8b9/0x12f0 [ 462.930774][ T2767] cgroup_apply_control+0x8e/0x7e0 [ 462.935973][ T2767] ? css_next_child+0x160/0x160 [ 462.940844][ T2767] ? stack_trace_save+0x12d/0x1f0 [ 462.945880][ T2767] ? io_schedule+0x120/0x120 [ 462.950482][ T2767] ? kernfs_fop_write_iter+0x15e/0x410 [ 462.955935][ T2767] ? __kasan_check_write+0x14/0x20 [ 462.961321][ T2767] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 462.966701][ T2767] cgroup_subtree_control_write+0xd19/0x1310 [ 462.972674][ T2767] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 462.978736][ T2767] ? __kasan_check_write+0x14/0x20 [ 462.983957][ T2767] ? _copy_from_iter+0x3fb/0xd60 [ 462.989012][ T2767] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 462.995122][ T2767] cgroup_file_write+0x28e/0x590 [ 463.000060][ T2767] ? cgroup_seqfile_stop+0xc0/0xc0 [ 463.005666][ T2767] ? mutex_trylock+0x180/0x180 [ 463.010713][ T2767] ? __kasan_check_write+0x14/0x20 [ 463.016082][ T2767] kernfs_fop_write_iter+0x2d0/0x410 [ 463.021465][ T2767] ? cgroup_seqfile_stop+0xc0/0xc0 [ 463.026766][ T2767] vfs_write+0xc4a/0xf80 [ 463.031039][ T2767] ? slab_free_freelist_hook+0xcc/0x1a0 [ 463.036627][ T2767] ? kernel_write+0x420/0x420 [ 463.041418][ T2767] ? do_sys_openat2+0x397/0x470 [ 463.046333][ T2767] ? __kasan_check_read+0x11/0x20 [ 463.051458][ T2767] ? __fdget_pos+0x27e/0x310 [ 463.056051][ T2767] ksys_write+0x198/0x2c0 [ 463.060368][ T2767] ? __ia32_sys_read+0x90/0x90 [ 463.065111][ T2767] ? debug_smp_processor_id+0x17/0x20 [ 463.071171][ T2767] __x64_sys_write+0x7b/0x90 [ 463.075826][ T2767] do_syscall_64+0x34/0x70 [ 463.080247][ T2767] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 463.086133][ T2767] RIP: 0033:0x7f48883727a9 [ 463.090725][ T2767] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 463.112308][ T2767] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 463.120901][ T2767] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 463.129513][ T2767] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 463.137839][ T2767] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 463.146258][ T2767] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 463.154394][ T2767] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000016 [ 463.165035][ T2767] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 463.207139][ T2768] FAULT_INJECTION: forcing a failure. [ 463.207139][ T2768] name failslab, interval 1, probability 0, space 0, times 0 [ 463.219993][ T2768] CPU: 0 PID: 2768 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 463.231392][ T2768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 463.246341][ T2768] Call Trace: [ 463.249641][ T2768] dump_stack_lvl+0x1e2/0x24b [ 463.254675][ T2768] ? bfq_pos_tree_add_move+0x43e/0x43e [ 463.260301][ T2768] ? selinux_kernfs_init_security+0x1a8/0x760 [ 463.266368][ T2768] dump_stack+0x15/0x17 [ 463.270580][ T2768] should_fail+0x3c0/0x510 [ 463.275002][ T2768] ? __kernfs_new_node+0x99/0x6e0 [ 463.280555][ T2768] __should_failslab+0x9f/0xe0 [ 463.285403][ T2768] should_failslab+0x9/0x20 [ 463.289928][ T2768] __kmalloc_track_caller+0x5f/0x350 [ 463.295208][ T2768] kstrdup_const+0x55/0x90 [ 463.299980][ T2768] __kernfs_new_node+0x99/0x6e0 [ 463.305668][ T2768] ? is_module_text_address+0xe1/0x140 [ 463.311594][ T2768] ? kernfs_new_node+0x170/0x170 [ 463.316603][ T2768] ? ptr_to_hashval+0x60/0x60 [ 463.321356][ T2768] ? mutex_lock+0xb2/0x1e0 [ 463.326349][ T2768] ? snprintf+0xd6/0x120 [ 463.331123][ T2768] ? mutex_unlock+0x29/0xf0 [ 463.335834][ T2768] kernfs_new_node+0x97/0x170 [ 463.340522][ T2768] __kernfs_create_file+0x4a/0x270 [ 463.346775][ T2768] cgroup_addrm_files+0xab8/0xfe0 [ 463.351848][ T2768] ? ____kasan_kmalloc+0xdc/0x110 [ 463.357542][ T2768] ? __kasan_kmalloc+0x9/0x10 [ 463.362521][ T2768] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 463.368073][ T2768] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 463.374323][ T2768] ? delete_node+0x759/0x7b0 [ 463.378962][ T2768] ? __kasan_check_read+0x11/0x20 [ 463.384055][ T2768] ? idr_replace+0x1c4/0x230 [ 463.389026][ T2768] ? idr_get_next+0x4b0/0x4b0 [ 463.393799][ T2768] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 463.398996][ T2768] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 463.404191][ T2768] css_populate_dir+0x137/0x370 [ 463.409297][ T2768] cgroup_apply_control_enable+0x8b9/0x12f0 [ 463.415417][ T2768] cgroup_apply_control+0x8e/0x7e0 [ 463.420528][ T2768] ? css_next_child+0x160/0x160 [ 463.425366][ T2768] ? io_schedule+0x120/0x120 [ 463.429975][ T2768] ? kernfs_fop_write_iter+0x15e/0x410 [ 463.435450][ T2768] ? __kasan_check_write+0x14/0x20 [ 463.440720][ T2768] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 463.446098][ T2768] cgroup_subtree_control_write+0xd19/0x1310 [ 463.452072][ T2768] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 463.458443][ T2768] ? __kasan_check_write+0x14/0x20 [ 463.463722][ T2768] ? _copy_from_iter+0x3fb/0xd60 [ 463.469045][ T2768] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 463.475361][ T2768] cgroup_file_write+0x28e/0x590 [ 463.480822][ T2768] ? cgroup_seqfile_stop+0xc0/0xc0 [ 463.486414][ T2768] ? mutex_trylock+0x180/0x180 [ 463.491700][ T2768] ? __kasan_check_write+0x14/0x20 [ 463.497445][ T2768] kernfs_fop_write_iter+0x2d0/0x410 [ 463.502945][ T2768] ? cgroup_seqfile_stop+0xc0/0xc0 [ 463.508235][ T2768] vfs_write+0xc4a/0xf80 [ 463.513088][ T2768] ? kernel_write+0x420/0x420 [ 463.517776][ T2768] ? do_sys_openat2+0x397/0x470 [ 463.523112][ T2768] ? __kasan_check_read+0x11/0x20 [ 463.528136][ T2768] ? __fdget_pos+0x27e/0x310 [ 463.532719][ T2768] ksys_write+0x198/0x2c0 [ 463.537321][ T2768] ? __kasan_check_write+0x14/0x20 [ 463.542707][ T2768] ? __ia32_sys_read+0x90/0x90 [ 463.547757][ T2768] ? debug_smp_processor_id+0x17/0x20 [ 463.553423][ T2768] __x64_sys_write+0x7b/0x90 [ 463.558543][ T2768] do_syscall_64+0x34/0x70 [ 463.563970][ T2768] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 463.569852][ T2768] RIP: 0033:0x7f48883727a9 [ 463.574254][ T2768] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 463.594116][ T2768] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 463.602518][ T2768] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 463.610754][ T2768] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 463.618910][ T2768] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 463.626886][ T2768] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 463.634854][ T2768] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000000f [ 463.643342][ T2768] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 463.677077][ T2770] FAULT_INJECTION: forcing a failure. [ 463.677077][ T2770] name failslab, interval 1, probability 0, space 0, times 0 [ 463.690178][ T2770] CPU: 0 PID: 2770 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 463.700851][ T2770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 463.711168][ T2770] Call Trace: [ 463.714546][ T2770] dump_stack_lvl+0x1e2/0x24b [ 463.719485][ T2770] ? bfq_pos_tree_add_move+0x43e/0x43e [ 463.725214][ T2770] ? selinux_kernfs_init_security+0x1a8/0x760 [ 463.731622][ T2770] dump_stack+0x15/0x17 [ 463.735993][ T2770] should_fail+0x3c0/0x510 [ 463.740610][ T2770] ? __kernfs_new_node+0x99/0x6e0 [ 463.745806][ T2770] __should_failslab+0x9f/0xe0 [ 463.750605][ T2770] should_failslab+0x9/0x20 [ 463.755251][ T2770] __kmalloc_track_caller+0x5f/0x350 [ 463.760755][ T2770] kstrdup_const+0x55/0x90 [ 463.765173][ T2770] __kernfs_new_node+0x99/0x6e0 [ 463.770036][ T2770] ? is_module_text_address+0xe1/0x140 [ 463.775870][ T2770] ? kernfs_new_node+0x170/0x170 [ 463.780912][ T2770] ? ptr_to_hashval+0x60/0x60 [ 463.785730][ T2770] ? mutex_lock+0xb2/0x1e0 [ 463.790362][ T2770] ? snprintf+0xd6/0x120 [ 463.794600][ T2770] ? mutex_unlock+0x29/0xf0 [ 463.799532][ T2770] kernfs_new_node+0x97/0x170 [ 463.804226][ T2770] __kernfs_create_file+0x4a/0x270 [ 463.809607][ T2770] cgroup_addrm_files+0xab8/0xfe0 [ 463.814637][ T2770] ? ____kasan_kmalloc+0xdc/0x110 [ 463.819777][ T2770] ? __kasan_kmalloc+0x9/0x10 [ 463.824785][ T2770] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 463.830449][ T2770] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 463.836656][ T2770] ? delete_node+0x759/0x7b0 [ 463.841269][ T2770] ? __kasan_check_read+0x11/0x20 [ 463.846413][ T2770] ? idr_replace+0x1c4/0x230 [ 463.851016][ T2770] ? idr_get_next+0x4b0/0x4b0 [ 463.855686][ T2770] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 463.860703][ T2770] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 463.865900][ T2770] css_populate_dir+0x137/0x370 [ 463.870970][ T2770] cgroup_apply_control_enable+0x8b9/0x12f0 [ 463.877047][ T2770] cgroup_apply_control+0x8e/0x7e0 [ 463.882179][ T2770] ? css_next_child+0x160/0x160 [ 463.887216][ T2770] ? stack_trace_save+0x12d/0x1f0 [ 463.892247][ T2770] ? io_schedule+0x120/0x120 [ 463.897019][ T2770] ? kernfs_fop_write_iter+0x15e/0x410 [ 463.902652][ T2770] ? __kasan_check_write+0x14/0x20 [ 463.908319][ T2770] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 463.914036][ T2770] cgroup_subtree_control_write+0xd19/0x1310 [ 463.920118][ T2770] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 463.926185][ T2770] ? __kasan_check_write+0x14/0x20 [ 463.931291][ T2770] ? _copy_from_iter+0x3fb/0xd60 [ 463.936226][ T2770] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 463.942312][ T2770] cgroup_file_write+0x28e/0x590 [ 463.947246][ T2770] ? cgroup_seqfile_stop+0xc0/0xc0 [ 463.952357][ T2770] ? mutex_trylock+0x180/0x180 [ 463.957109][ T2770] ? __kasan_check_write+0x14/0x20 [ 463.962393][ T2770] kernfs_fop_write_iter+0x2d0/0x410 [ 463.967751][ T2770] ? cgroup_seqfile_stop+0xc0/0xc0 [ 463.972873][ T2770] vfs_write+0xc4a/0xf80 [ 463.977296][ T2770] ? slab_free_freelist_hook+0xcc/0x1a0 [ 463.982850][ T2770] ? kernel_write+0x420/0x420 [ 463.987730][ T2770] ? do_sys_openat2+0x397/0x470 [ 463.992593][ T2770] ? __kasan_check_read+0x11/0x20 [ 463.997636][ T2770] ? __fdget_pos+0x27e/0x310 [ 464.002223][ T2770] ksys_write+0x198/0x2c0 [ 464.006550][ T2770] ? __kasan_check_write+0x14/0x20 [ 464.011700][ T2770] ? __ia32_sys_read+0x90/0x90 [ 464.016481][ T2770] ? debug_smp_processor_id+0x17/0x20 [ 464.022031][ T2770] __x64_sys_write+0x7b/0x90 [ 464.026928][ T2770] do_syscall_64+0x34/0x70 [ 464.031583][ T2770] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 464.037559][ T2770] RIP: 0033:0x7f48883727a9 [ 464.041957][ T2770] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 464.064341][ T2770] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 464.073102][ T2770] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 464.081273][ T2770] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 464.090020][ T2770] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 464.098214][ T2770] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 464.106184][ T2770] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000020 [ 464.114525][ T2770] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 464.147395][ T2764] FAULT_INJECTION: forcing a failure. [ 464.147395][ T2764] name failslab, interval 1, probability 0, space 0, times 0 [ 464.160729][ T2764] CPU: 1 PID: 2764 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 464.171146][ T2764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 464.181794][ T2764] Call Trace: [ 464.185102][ T2764] dump_stack_lvl+0x1e2/0x24b [ 464.190046][ T2764] ? panic+0x7d7/0x7d7 [ 464.194223][ T2764] ? bfq_pos_tree_add_move+0x43e/0x43e [ 464.199703][ T2764] ? do_syscall_64+0x34/0x70 [ 464.204280][ T2764] dump_stack+0x15/0x17 [ 464.208761][ T2764] should_fail+0x3c0/0x510 [ 464.213174][ T2764] __should_failslab+0x9f/0xe0 [ 464.217960][ T2764] should_failslab+0x9/0x20 [ 464.222627][ T2764] kmem_cache_alloc+0x3f/0x300 [ 464.227793][ T2764] ? __kernfs_new_node+0xdb/0x6e0 [ 464.232994][ T2764] __kernfs_new_node+0xdb/0x6e0 [ 464.238160][ T2764] ? is_module_text_address+0xe1/0x140 [ 464.244094][ T2764] ? kernfs_new_node+0x170/0x170 [ 464.249293][ T2764] ? ptr_to_hashval+0x60/0x60 [ 464.254395][ T2764] ? arch_stack_walk+0xf8/0x140 [ 464.259514][ T2764] ? snprintf+0xd6/0x120 [ 464.263942][ T2764] kernfs_new_node+0x97/0x170 [ 464.269276][ T2764] __kernfs_create_file+0x4a/0x270 [ 464.274772][ T2764] cgroup_addrm_files+0xab8/0xfe0 [ 464.280273][ T2764] ? ____kasan_kmalloc+0xdc/0x110 [ 464.285376][ T2764] ? __kasan_kmalloc+0x9/0x10 [ 464.290533][ T2764] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 464.297031][ T2764] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 464.303457][ T2764] ? delete_node+0x759/0x7b0 [ 464.308136][ T2764] ? __kasan_check_read+0x11/0x20 [ 464.313418][ T2764] ? delete_node+0x759/0x7b0 [ 464.318255][ T2764] ? __kasan_check_write+0x14/0x20 [ 464.323482][ T2764] ? idr_replace+0x1c4/0x230 [ 464.328055][ T2764] ? idr_get_next+0x4b0/0x4b0 [ 464.332740][ T2764] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 464.338182][ T2764] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 464.344757][ T2764] css_populate_dir+0x137/0x370 [ 464.349619][ T2764] cgroup_apply_control_enable+0x8b9/0x12f0 [ 464.355745][ T2764] cgroup_apply_control+0x8e/0x7e0 [ 464.360949][ T2764] ? css_next_child+0x160/0x160 [ 464.365785][ T2764] ? stack_trace_save+0x12d/0x1f0 [ 464.370926][ T2764] ? io_schedule+0x120/0x120 [ 464.376424][ T2764] ? kernfs_fop_write_iter+0x15e/0x410 [ 464.382516][ T2764] ? __kasan_check_write+0x14/0x20 [ 464.388351][ T2764] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 464.393775][ T2764] cgroup_subtree_control_write+0xd19/0x1310 [ 464.399982][ T2764] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 464.405960][ T2764] ? __kasan_check_write+0x14/0x20 [ 464.411323][ T2764] ? _copy_from_iter+0x3fb/0xd60 [ 464.416279][ T2764] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 464.422627][ T2764] cgroup_file_write+0x28e/0x590 [ 464.427684][ T2764] ? cgroup_seqfile_stop+0xc0/0xc0 [ 464.432872][ T2764] ? mutex_trylock+0x180/0x180 [ 464.437717][ T2764] ? __kasan_check_write+0x14/0x20 [ 464.443091][ T2764] kernfs_fop_write_iter+0x2d0/0x410 [ 464.448988][ T2764] ? cgroup_seqfile_stop+0xc0/0xc0 [ 464.454398][ T2764] vfs_write+0xc4a/0xf80 [ 464.458749][ T2764] ? slab_free_freelist_hook+0xcc/0x1a0 [ 464.464294][ T2764] ? kernel_write+0x420/0x420 [ 464.470296][ T2764] ? do_sys_openat2+0x397/0x470 [ 464.476119][ T2764] ? __kasan_check_read+0x11/0x20 [ 464.481414][ T2764] ? __fdget_pos+0x27e/0x310 [ 464.488473][ T2764] ksys_write+0x198/0x2c0 [ 464.492873][ T2764] ? __ia32_sys_read+0x90/0x90 [ 464.497900][ T2764] ? debug_smp_processor_id+0x17/0x20 [ 464.503450][ T2764] __x64_sys_write+0x7b/0x90 [ 464.508943][ T2764] do_syscall_64+0x34/0x70 [ 464.513359][ T2764] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 464.520757][ T2764] RIP: 0033:0x7f48883727a9 [ 464.525616][ T2764] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 464.546753][ T2764] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 464.555504][ T2764] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 464.563471][ T2764] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 464.571435][ T2764] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 464.579401][ T2764] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 464.587545][ T2764] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000017 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 464.596042][ T2764] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 464.628263][ T2765] FAULT_INJECTION: forcing a failure. [ 464.628263][ T2765] name failslab, interval 1, probability 0, space 0, times 0 [ 464.641237][ T2765] CPU: 1 PID: 2765 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 464.651683][ T2765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 464.661844][ T2765] Call Trace: [ 464.665139][ T2765] dump_stack_lvl+0x1e2/0x24b [ 464.669796][ T2765] ? bfq_pos_tree_add_move+0x43e/0x43e [ 464.675337][ T2765] ? selinux_kernfs_init_security+0x1a8/0x760 [ 464.681387][ T2765] dump_stack+0x15/0x17 [ 464.685517][ T2765] should_fail+0x3c0/0x510 [ 464.689911][ T2765] ? __kernfs_new_node+0x99/0x6e0 [ 464.694907][ T2765] __should_failslab+0x9f/0xe0 [ 464.699664][ T2765] should_failslab+0x9/0x20 [ 464.704242][ T2765] __kmalloc_track_caller+0x5f/0x350 [ 464.709516][ T2765] kstrdup_const+0x55/0x90 [ 464.714000][ T2765] __kernfs_new_node+0x99/0x6e0 [ 464.718826][ T2765] ? is_module_text_address+0xe1/0x140 [ 464.724256][ T2765] ? kernfs_new_node+0x170/0x170 [ 464.729258][ T2765] ? ptr_to_hashval+0x60/0x60 [ 464.733910][ T2765] ? mutex_lock+0xb2/0x1e0 [ 464.738443][ T2765] ? snprintf+0xd6/0x120 [ 464.742998][ T2765] ? mutex_unlock+0x29/0xf0 [ 464.747496][ T2765] kernfs_new_node+0x97/0x170 [ 464.752163][ T2765] __kernfs_create_file+0x4a/0x270 [ 464.757254][ T2765] cgroup_addrm_files+0xab8/0xfe0 [ 464.762250][ T2765] ? ____kasan_kmalloc+0xdc/0x110 [ 464.767247][ T2765] ? __kasan_kmalloc+0x9/0x10 [ 464.771915][ T2765] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 464.777520][ T2765] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 464.783734][ T2765] ? delete_node+0x759/0x7b0 [ 464.788319][ T2765] ? __kasan_check_read+0x11/0x20 [ 464.793316][ T2765] ? idr_replace+0x1c4/0x230 [ 464.797943][ T2765] ? idr_get_next+0x4b0/0x4b0 [ 464.802602][ T2765] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 464.807595][ T2765] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 464.812768][ T2765] css_populate_dir+0x137/0x370 [ 464.817687][ T2765] cgroup_apply_control_enable+0x8b9/0x12f0 [ 464.823571][ T2765] cgroup_apply_control+0x8e/0x7e0 [ 464.828658][ T2765] ? css_next_child+0x160/0x160 [ 464.833566][ T2765] ? stack_trace_save+0x12d/0x1f0 [ 464.838613][ T2765] ? io_schedule+0x120/0x120 [ 464.843444][ T2765] ? kernfs_fop_write_iter+0x15e/0x410 [ 464.848873][ T2765] ? __kasan_check_write+0x14/0x20 [ 464.853955][ T2765] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 464.859213][ T2765] cgroup_subtree_control_write+0xd19/0x1310 [ 464.865168][ T2765] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 464.871209][ T2765] ? __kasan_check_write+0x14/0x20 [ 464.876306][ T2765] ? _copy_from_iter+0x3fb/0xd60 [ 464.881221][ T2765] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 464.887583][ T2765] cgroup_file_write+0x28e/0x590 [ 464.892536][ T2765] ? cgroup_seqfile_stop+0xc0/0xc0 [ 464.897643][ T2765] ? mutex_trylock+0x180/0x180 [ 464.902382][ T2765] ? __kasan_check_write+0x14/0x20 [ 464.907476][ T2765] kernfs_fop_write_iter+0x2d0/0x410 [ 464.912751][ T2765] ? cgroup_seqfile_stop+0xc0/0xc0 [ 464.917869][ T2765] vfs_write+0xc4a/0xf80 [ 464.922450][ T2765] ? slab_free_freelist_hook+0xcc/0x1a0 [ 464.927985][ T2765] ? kernel_write+0x420/0x420 [ 464.932785][ T2765] ? do_sys_openat2+0x397/0x470 [ 464.937637][ T2765] ? __kasan_check_read+0x11/0x20 [ 464.942667][ T2765] ? __fdget_pos+0x27e/0x310 [ 464.947249][ T2765] ksys_write+0x198/0x2c0 [ 464.951648][ T2765] ? __ia32_sys_read+0x90/0x90 [ 464.956394][ T2765] ? debug_smp_processor_id+0x17/0x20 [ 464.961743][ T2765] __x64_sys_write+0x7b/0x90 [ 464.966319][ T2765] do_syscall_64+0x34/0x70 [ 464.970822][ T2765] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 464.976688][ T2765] RIP: 0033:0x7f48883727a9 [ 464.981080][ T2765] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 465.001072][ T2765] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 465.009793][ T2765] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 465.017845][ T2765] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 465.025841][ T2765] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 465.033788][ T2765] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 465.041756][ T2765] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000014 [ 465.053290][ T2765] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 465.097323][ T2773] FAULT_INJECTION: forcing a failure. [ 465.097323][ T2773] name failslab, interval 1, probability 0, space 0, times 0 [ 465.110036][ T2773] CPU: 1 PID: 2773 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 465.120620][ T2773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 465.130747][ T2773] Call Trace: [ 465.134028][ T2773] dump_stack_lvl+0x1e2/0x24b [ 465.138690][ T2773] ? bfq_pos_tree_add_move+0x43e/0x43e [ 465.144221][ T2773] ? selinux_kernfs_init_security+0x1a8/0x760 [ 465.150272][ T2773] dump_stack+0x15/0x17 [ 465.154418][ T2773] should_fail+0x3c0/0x510 [ 465.158921][ T2773] ? __kernfs_new_node+0x99/0x6e0 [ 465.164282][ T2773] __should_failslab+0x9f/0xe0 [ 465.169042][ T2773] should_failslab+0x9/0x20 [ 465.173539][ T2773] __kmalloc_track_caller+0x5f/0x350 [ 465.178893][ T2773] kstrdup_const+0x55/0x90 [ 465.183470][ T2773] __kernfs_new_node+0x99/0x6e0 [ 465.188809][ T2773] ? is_module_text_address+0xe1/0x140 [ 465.194611][ T2773] ? kernfs_new_node+0x170/0x170 [ 465.199543][ T2773] ? ptr_to_hashval+0x60/0x60 [ 465.204307][ T2773] ? mutex_lock+0xb2/0x1e0 [ 465.208790][ T2773] ? snprintf+0xd6/0x120 [ 465.213157][ T2773] ? mutex_unlock+0x29/0xf0 [ 465.217661][ T2773] kernfs_new_node+0x97/0x170 [ 465.222437][ T2773] __kernfs_create_file+0x4a/0x270 [ 465.227549][ T2773] cgroup_addrm_files+0xab8/0xfe0 [ 465.232932][ T2773] ? ____kasan_kmalloc+0xdc/0x110 [ 465.237953][ T2773] ? __kasan_kmalloc+0x9/0x10 [ 465.242615][ T2773] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 465.248271][ T2773] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 465.254426][ T2773] ? delete_node+0x759/0x7b0 [ 465.259013][ T2773] ? __kasan_check_read+0x11/0x20 [ 465.264029][ T2773] ? idr_replace+0x1c4/0x230 [ 465.268690][ T2773] ? idr_get_next+0x4b0/0x4b0 [ 465.273353][ T2773] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 465.278375][ T2773] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 465.283683][ T2773] css_populate_dir+0x137/0x370 [ 465.288677][ T2773] cgroup_apply_control_enable+0x8b9/0x12f0 [ 465.294576][ T2773] cgroup_apply_control+0x8e/0x7e0 [ 465.299688][ T2773] ? css_next_child+0x160/0x160 [ 465.304550][ T2773] ? stack_trace_save+0x12d/0x1f0 [ 465.309680][ T2773] ? io_schedule+0x120/0x120 [ 465.314271][ T2773] ? kernfs_fop_write_iter+0x15e/0x410 [ 465.319724][ T2773] ? __kasan_check_write+0x14/0x20 [ 465.324912][ T2773] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 465.330297][ T2773] cgroup_subtree_control_write+0xd19/0x1310 [ 465.336403][ T2773] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 465.342518][ T2773] ? __kasan_check_write+0x14/0x20 [ 465.347761][ T2773] ? _copy_from_iter+0x3fb/0xd60 [ 465.353017][ T2773] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 465.359113][ T2773] cgroup_file_write+0x28e/0x590 [ 465.364047][ T2773] ? cgroup_seqfile_stop+0xc0/0xc0 [ 465.369155][ T2773] ? mutex_trylock+0x180/0x180 [ 465.373927][ T2773] ? __kasan_check_write+0x14/0x20 [ 465.379042][ T2773] kernfs_fop_write_iter+0x2d0/0x410 [ 465.384482][ T2773] ? cgroup_seqfile_stop+0xc0/0xc0 [ 465.389742][ T2773] vfs_write+0xc4a/0xf80 [ 465.394088][ T2773] ? slab_free_freelist_hook+0xcc/0x1a0 [ 465.399767][ T2773] ? kernel_write+0x420/0x420 [ 465.404521][ T2773] ? do_sys_openat2+0x397/0x470 [ 465.409487][ T2773] ? __kasan_check_read+0x11/0x20 [ 465.414510][ T2773] ? __fdget_pos+0x27e/0x310 [ 465.419165][ T2773] ksys_write+0x198/0x2c0 [ 465.423684][ T2773] ? __ia32_sys_read+0x90/0x90 [ 465.428467][ T2773] ? debug_smp_processor_id+0x17/0x20 [ 465.433950][ T2773] __x64_sys_write+0x7b/0x90 [ 465.438548][ T2773] do_syscall_64+0x34/0x70 [ 465.442963][ T2773] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 465.448852][ T2773] RIP: 0033:0x7f48883727a9 [ 465.453397][ T2773] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 465.473885][ T2773] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 465.482582][ T2773] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 465.490768][ T2773] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 465.498923][ T2773] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 465.507541][ T2773] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 465.515568][ T2773] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000021 [ 465.523894][ T2773] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 465.557422][ T2774] FAULT_INJECTION: forcing a failure. [ 465.557422][ T2774] name failslab, interval 1, probability 0, space 0, times 0 [ 465.570476][ T2774] CPU: 1 PID: 2774 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 465.580874][ T2774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 465.591005][ T2774] Call Trace: [ 465.594330][ T2774] dump_stack_lvl+0x1e2/0x24b [ 465.599080][ T2774] ? panic+0x7d7/0x7d7 [ 465.603141][ T2774] ? bfq_pos_tree_add_move+0x43e/0x43e [ 465.608823][ T2774] ? selinux_kernfs_init_security+0x1a8/0x760 [ 465.615245][ T2774] dump_stack+0x15/0x17 [ 465.619514][ T2774] should_fail+0x3c0/0x510 [ 465.624119][ T2774] __should_failslab+0x9f/0xe0 [ 465.629061][ T2774] should_failslab+0x9/0x20 [ 465.633551][ T2774] kmem_cache_alloc+0x3f/0x300 [ 465.638380][ T2774] ? __kernfs_new_node+0xdb/0x6e0 [ 465.643403][ T2774] __kernfs_new_node+0xdb/0x6e0 [ 465.648760][ T2774] ? is_module_text_address+0xe1/0x140 [ 465.654206][ T2774] ? kernfs_new_node+0x170/0x170 [ 465.659427][ T2774] ? ptr_to_hashval+0x60/0x60 [ 465.664113][ T2774] ? arch_stack_walk+0xf8/0x140 [ 465.668963][ T2774] ? snprintf+0xd6/0x120 [ 465.673225][ T2774] kernfs_new_node+0x97/0x170 [ 465.678160][ T2774] __kernfs_create_file+0x4a/0x270 [ 465.683264][ T2774] cgroup_addrm_files+0xab8/0xfe0 [ 465.688341][ T2774] ? ____kasan_kmalloc+0xdc/0x110 [ 465.693373][ T2774] ? __kasan_kmalloc+0x9/0x10 [ 465.698045][ T2774] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 465.703600][ T2774] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 465.709758][ T2774] ? delete_node+0x759/0x7b0 [ 465.714338][ T2774] ? __kasan_check_read+0x11/0x20 [ 465.719342][ T2774] ? delete_node+0x759/0x7b0 [ 465.723924][ T2774] ? __kasan_check_write+0x14/0x20 [ 465.729032][ T2774] ? idr_replace+0x1c4/0x230 [ 465.733608][ T2774] ? idr_get_next+0x4b0/0x4b0 [ 465.738265][ T2774] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 465.743344][ T2774] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 465.748805][ T2774] css_populate_dir+0x137/0x370 [ 465.753727][ T2774] cgroup_apply_control_enable+0x8b9/0x12f0 [ 465.759715][ T2774] cgroup_apply_control+0x8e/0x7e0 [ 465.764966][ T2774] ? css_next_child+0x160/0x160 [ 465.769804][ T2774] ? stack_trace_save+0x12d/0x1f0 [ 465.774945][ T2774] ? io_schedule+0x120/0x120 [ 465.779787][ T2774] ? kernfs_fop_write_iter+0x15e/0x410 [ 465.785236][ T2774] ? __kasan_check_write+0x14/0x20 [ 465.790681][ T2774] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 465.795963][ T2774] cgroup_subtree_control_write+0xd19/0x1310 [ 465.801944][ T2774] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 465.808059][ T2774] ? __kasan_check_write+0x14/0x20 [ 465.813365][ T2774] ? _copy_from_iter+0x3fb/0xd60 [ 465.818353][ T2774] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 465.824343][ T2774] cgroup_file_write+0x28e/0x590 [ 465.829427][ T2774] ? cgroup_seqfile_stop+0xc0/0xc0 [ 465.834545][ T2774] ? mutex_trylock+0x180/0x180 [ 465.839400][ T2774] ? __kasan_check_write+0x14/0x20 [ 465.844875][ T2774] kernfs_fop_write_iter+0x2d0/0x410 [ 465.850438][ T2774] ? cgroup_seqfile_stop+0xc0/0xc0 [ 465.856091][ T2774] vfs_write+0xc4a/0xf80 [ 465.860482][ T2774] ? slab_free_freelist_hook+0xcc/0x1a0 [ 465.866164][ T2774] ? kernel_write+0x420/0x420 [ 465.870963][ T2774] ? do_sys_openat2+0x397/0x470 [ 465.875829][ T2774] ? __kasan_check_read+0x11/0x20 [ 465.881034][ T2774] ? __fdget_pos+0x27e/0x310 [ 465.885642][ T2774] ksys_write+0x198/0x2c0 [ 465.889980][ T2774] ? __kasan_check_write+0x14/0x20 [ 465.895293][ T2774] ? __ia32_sys_read+0x90/0x90 [ 465.900039][ T2774] ? debug_smp_processor_id+0x17/0x20 [ 465.905395][ T2774] __x64_sys_write+0x7b/0x90 [ 465.910154][ T2774] do_syscall_64+0x34/0x70 [ 465.914860][ T2774] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 465.921015][ T2774] RIP: 0033:0x7f48883727a9 [ 465.925420][ T2774] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 465.948023][ T2774] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 465.956748][ T2774] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 465.964880][ T2774] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 465.973091][ T2774] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 465.981082][ T2774] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 465.989512][ T2774] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000018 [ 465.997917][ T2774] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 466.037355][ T2772] FAULT_INJECTION: forcing a failure. [ 466.037355][ T2772] name failslab, interval 1, probability 0, space 0, times 0 [ 466.051198][ T2772] CPU: 0 PID: 2772 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 466.062786][ T2772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 466.075829][ T2772] Call Trace: [ 466.079256][ T2772] dump_stack_lvl+0x1e2/0x24b [ 466.083977][ T2772] ? bfq_pos_tree_add_move+0x43e/0x43e [ 466.089564][ T2772] ? selinux_kernfs_init_security+0x1a8/0x760 [ 466.095672][ T2772] dump_stack+0x15/0x17 [ 466.099919][ T2772] should_fail+0x3c0/0x510 [ 466.104324][ T2772] ? __kernfs_new_node+0x99/0x6e0 [ 466.109332][ T2772] __should_failslab+0x9f/0xe0 [ 466.114088][ T2772] should_failslab+0x9/0x20 [ 466.118578][ T2772] __kmalloc_track_caller+0x5f/0x350 [ 466.123936][ T2772] kstrdup_const+0x55/0x90 [ 466.128334][ T2772] __kernfs_new_node+0x99/0x6e0 [ 466.133307][ T2772] ? is_module_text_address+0xe1/0x140 [ 466.138876][ T2772] ? kernfs_new_node+0x170/0x170 [ 466.143824][ T2772] ? ptr_to_hashval+0x60/0x60 [ 466.148497][ T2772] ? mutex_lock+0xb2/0x1e0 [ 466.153077][ T2772] ? snprintf+0xd6/0x120 [ 466.157425][ T2772] ? mutex_unlock+0x29/0xf0 [ 466.161923][ T2772] kernfs_new_node+0x97/0x170 [ 466.166806][ T2772] __kernfs_create_file+0x4a/0x270 [ 466.172016][ T2772] cgroup_addrm_files+0xab8/0xfe0 [ 466.177405][ T2772] ? ____kasan_kmalloc+0xdc/0x110 [ 466.182508][ T2772] ? __kasan_kmalloc+0x9/0x10 [ 466.187175][ T2772] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 466.192718][ T2772] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 466.199143][ T2772] ? delete_node+0x759/0x7b0 [ 466.203720][ T2772] ? __kasan_check_read+0x11/0x20 [ 466.208746][ T2772] ? idr_replace+0x1c4/0x230 [ 466.213533][ T2772] ? idr_get_next+0x4b0/0x4b0 [ 466.218320][ T2772] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 466.223339][ T2772] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 466.228534][ T2772] css_populate_dir+0x137/0x370 [ 466.233909][ T2772] cgroup_apply_control_enable+0x8b9/0x12f0 [ 466.240065][ T2772] cgroup_apply_control+0x8e/0x7e0 [ 466.245305][ T2772] ? css_next_child+0x160/0x160 [ 466.250287][ T2772] ? stack_trace_save+0x12d/0x1f0 [ 466.255306][ T2772] ? io_schedule+0x120/0x120 [ 466.259993][ T2772] ? kernfs_fop_write_iter+0x15e/0x410 [ 466.265846][ T2772] ? __kasan_check_write+0x14/0x20 [ 466.271111][ T2772] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 466.277089][ T2772] cgroup_subtree_control_write+0xd19/0x1310 [ 466.283232][ T2772] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 466.289342][ T2772] ? __kasan_check_write+0x14/0x20 [ 466.294716][ T2772] ? _copy_from_iter+0x3fb/0xd60 [ 466.300544][ T2772] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 466.308667][ T2772] cgroup_file_write+0x28e/0x590 [ 466.313614][ T2772] ? cgroup_seqfile_stop+0xc0/0xc0 [ 466.319468][ T2772] ? mutex_trylock+0x180/0x180 [ 466.324450][ T2772] ? __kasan_check_write+0x14/0x20 [ 466.330630][ T2772] kernfs_fop_write_iter+0x2d0/0x410 [ 466.336191][ T2772] ? cgroup_seqfile_stop+0xc0/0xc0 [ 466.341741][ T2772] vfs_write+0xc4a/0xf80 [ 466.346098][ T2772] ? slab_free_freelist_hook+0xcc/0x1a0 [ 466.352111][ T2772] ? kernel_write+0x420/0x420 [ 466.357391][ T2772] ? do_sys_openat2+0x397/0x470 [ 466.362403][ T2772] ? __kasan_check_read+0x11/0x20 [ 466.367535][ T2772] ? __fdget_pos+0x27e/0x310 [ 466.372670][ T2772] ksys_write+0x198/0x2c0 [ 466.377380][ T2772] ? __ia32_sys_read+0x90/0x90 [ 466.382369][ T2772] ? debug_smp_processor_id+0x17/0x20 [ 466.388263][ T2772] __x64_sys_write+0x7b/0x90 [ 466.392863][ T2772] do_syscall_64+0x34/0x70 [ 466.397748][ T2772] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 466.404365][ T2772] RIP: 0033:0x7f48883727a9 [ 466.409222][ T2772] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 466.429811][ T2772] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 466.438354][ T2772] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 466.446347][ T2772] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 466.454577][ T2772] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 466.462980][ T2772] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 466.472342][ T2772] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000010 [ 466.480869][ T2772] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 466.527290][ T2775] FAULT_INJECTION: forcing a failure. [ 466.527290][ T2775] name failslab, interval 1, probability 0, space 0, times 0 [ 466.542519][ T2775] CPU: 1 PID: 2775 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 466.553702][ T2775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 466.564080][ T2775] Call Trace: [ 466.567490][ T2775] dump_stack_lvl+0x1e2/0x24b [ 466.572519][ T2775] ? panic+0x7d7/0x7d7 [ 466.577113][ T2775] ? bfq_pos_tree_add_move+0x43e/0x43e [ 466.582926][ T2775] ? selinux_kernfs_init_security+0x1a8/0x760 [ 466.589996][ T2775] dump_stack+0x15/0x17 [ 466.594571][ T2775] should_fail+0x3c0/0x510 [ 466.599289][ T2775] __should_failslab+0x9f/0xe0 [ 466.604769][ T2775] should_failslab+0x9/0x20 [ 466.609398][ T2775] kmem_cache_alloc+0x3f/0x300 [ 466.614558][ T2775] ? __kernfs_new_node+0xdb/0x6e0 [ 466.620082][ T2775] __kernfs_new_node+0xdb/0x6e0 [ 466.625429][ T2775] ? is_module_text_address+0xe1/0x140 [ 466.632734][ T2775] ? kernfs_new_node+0x170/0x170 [ 466.637670][ T2775] ? ptr_to_hashval+0x60/0x60 [ 466.642460][ T2775] ? arch_stack_walk+0xf8/0x140 [ 466.647947][ T2775] ? snprintf+0xd6/0x120 [ 466.652220][ T2775] kernfs_new_node+0x97/0x170 [ 466.657323][ T2775] __kernfs_create_file+0x4a/0x270 [ 466.663139][ T2775] cgroup_addrm_files+0xab8/0xfe0 [ 466.669242][ T2775] ? ____kasan_kmalloc+0xdc/0x110 [ 466.674841][ T2775] ? __kasan_kmalloc+0x9/0x10 [ 466.680454][ T2775] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 466.686602][ T2775] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 466.693186][ T2775] ? delete_node+0x759/0x7b0 [ 466.698189][ T2775] ? __kasan_check_read+0x11/0x20 [ 466.703388][ T2775] ? delete_node+0x759/0x7b0 [ 466.708104][ T2775] ? __kasan_check_write+0x14/0x20 [ 466.713775][ T2775] ? idr_replace+0x1c4/0x230 [ 466.718807][ T2775] ? idr_get_next+0x4b0/0x4b0 [ 466.723563][ T2775] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 466.728865][ T2775] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 466.734464][ T2775] css_populate_dir+0x137/0x370 [ 466.739313][ T2775] cgroup_apply_control_enable+0x8b9/0x12f0 [ 466.745306][ T2775] cgroup_apply_control+0x8e/0x7e0 [ 466.750522][ T2775] ? css_next_child+0x160/0x160 [ 466.755365][ T2775] ? io_schedule+0x120/0x120 [ 466.759970][ T2775] ? kernfs_fop_write_iter+0x15e/0x410 [ 466.765436][ T2775] ? __kasan_check_write+0x14/0x20 [ 466.770548][ T2775] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 466.775823][ T2775] cgroup_subtree_control_write+0xd19/0x1310 [ 466.782046][ T2775] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 466.788030][ T2775] ? __kasan_check_write+0x14/0x20 [ 466.793142][ T2775] ? _copy_from_iter+0x3fb/0xd60 [ 466.798164][ T2775] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 466.804139][ T2775] cgroup_file_write+0x28e/0x590 [ 466.809158][ T2775] ? cgroup_seqfile_stop+0xc0/0xc0 [ 466.814384][ T2775] ? mutex_trylock+0x180/0x180 [ 466.819130][ T2775] ? __kasan_check_write+0x14/0x20 [ 466.824236][ T2775] kernfs_fop_write_iter+0x2d0/0x410 [ 466.829595][ T2775] ? cgroup_seqfile_stop+0xc0/0xc0 [ 466.834709][ T2775] vfs_write+0xc4a/0xf80 [ 466.838969][ T2775] ? ktime_get+0x127/0x150 [ 466.843391][ T2775] ? kernel_write+0x420/0x420 [ 466.848056][ T2775] ? hrtimer_interrupt+0x1148/0x13b0 [ 466.853514][ T2775] ? __kasan_check_read+0x11/0x20 [ 466.858534][ T2775] ? __fdget_pos+0x27e/0x310 [ 466.863112][ T2775] ksys_write+0x198/0x2c0 [ 466.867476][ T2775] ? kvm_sched_clock_read+0x18/0x40 [ 466.873324][ T2775] ? sched_clock+0x3a/0x40 [ 466.877733][ T2775] ? __ia32_sys_read+0x90/0x90 [ 466.882711][ T2775] ? debug_smp_processor_id+0x17/0x20 [ 466.888240][ T2775] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 466.894305][ T2775] __x64_sys_write+0x7b/0x90 [ 466.898881][ T2775] do_syscall_64+0x34/0x70 [ 466.903446][ T2775] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 466.909433][ T2775] RIP: 0033:0x7f48883727a9 [ 466.913986][ T2775] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 466.934464][ T2775] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 466.943129][ T2775] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 466.951358][ T2775] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 466.959563][ T2775] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 466.967557][ T2775] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 466.975609][ T2775] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000012 [ 466.983725][ T2775] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 467.037245][ T2771] FAULT_INJECTION: forcing a failure. [ 467.037245][ T2771] name failslab, interval 1, probability 0, space 0, times 0 [ 467.050002][ T2771] CPU: 0 PID: 2771 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 467.060653][ T2771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 467.070725][ T2771] Call Trace: [ 467.074153][ T2771] dump_stack_lvl+0x1e2/0x24b [ 467.078956][ T2771] ? panic+0x7d7/0x7d7 [ 467.083038][ T2771] ? bfq_pos_tree_add_move+0x43e/0x43e [ 467.088571][ T2771] ? selinux_kernfs_init_security+0x1a8/0x760 [ 467.094646][ T2771] dump_stack+0x15/0x17 [ 467.098802][ T2771] should_fail+0x3c0/0x510 [ 467.103204][ T2771] __should_failslab+0x9f/0xe0 [ 467.108012][ T2771] should_failslab+0x9/0x20 [ 467.112577][ T2771] kmem_cache_alloc+0x3f/0x300 [ 467.117423][ T2771] ? __kernfs_new_node+0xdb/0x6e0 [ 467.122563][ T2771] __kernfs_new_node+0xdb/0x6e0 [ 467.127427][ T2771] ? is_module_text_address+0xe1/0x140 [ 467.133101][ T2771] ? kernfs_new_node+0x170/0x170 [ 467.138119][ T2771] ? ptr_to_hashval+0x60/0x60 [ 467.142793][ T2771] ? arch_stack_walk+0xf8/0x140 [ 467.147647][ T2771] ? snprintf+0xd6/0x120 [ 467.151883][ T2771] kernfs_new_node+0x97/0x170 [ 467.156682][ T2771] __kernfs_create_file+0x4a/0x270 [ 467.161803][ T2771] cgroup_addrm_files+0xab8/0xfe0 [ 467.166832][ T2771] ? ____kasan_kmalloc+0xdc/0x110 [ 467.171962][ T2771] ? __kasan_kmalloc+0x9/0x10 [ 467.176853][ T2771] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 467.182547][ T2771] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 467.188699][ T2771] ? delete_node+0x759/0x7b0 [ 467.193284][ T2771] ? __kasan_check_read+0x11/0x20 [ 467.198384][ T2771] ? delete_node+0x759/0x7b0 [ 467.202978][ T2771] ? __kasan_check_write+0x14/0x20 [ 467.208082][ T2771] ? idr_replace+0x1c4/0x230 [ 467.212768][ T2771] ? idr_get_next+0x4b0/0x4b0 [ 467.217544][ T2771] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 467.222683][ T2771] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 467.228288][ T2771] css_populate_dir+0x137/0x370 [ 467.233234][ T2771] cgroup_apply_control_enable+0x8b9/0x12f0 [ 467.239334][ T2771] cgroup_apply_control+0x8e/0x7e0 [ 467.244626][ T2771] ? css_next_child+0x160/0x160 [ 467.249472][ T2771] ? stack_trace_save+0x12d/0x1f0 [ 467.254909][ T2771] ? io_schedule+0x120/0x120 [ 467.259537][ T2771] ? kernfs_fop_write_iter+0x15e/0x410 [ 467.265078][ T2771] ? __kasan_check_write+0x14/0x20 [ 467.270277][ T2771] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 467.275543][ T2771] cgroup_subtree_control_write+0xd19/0x1310 [ 467.281683][ T2771] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 467.287755][ T2771] ? __kasan_check_write+0x14/0x20 [ 467.292945][ T2771] ? _copy_from_iter+0x3fb/0xd60 [ 467.298483][ T2771] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 467.304542][ T2771] cgroup_file_write+0x28e/0x590 [ 467.309479][ T2771] ? cgroup_seqfile_stop+0xc0/0xc0 [ 467.315803][ T2771] ? mutex_trylock+0x180/0x180 [ 467.320649][ T2771] ? __kasan_check_write+0x14/0x20 [ 467.325749][ T2771] kernfs_fop_write_iter+0x2d0/0x410 [ 467.331031][ T2771] ? cgroup_seqfile_stop+0xc0/0xc0 [ 467.336211][ T2771] vfs_write+0xc4a/0xf80 [ 467.340455][ T2771] ? slab_free_freelist_hook+0xcc/0x1a0 [ 467.345992][ T2771] ? kernel_write+0x420/0x420 [ 467.350659][ T2771] ? do_sys_openat2+0x397/0x470 [ 467.355505][ T2771] ? __kasan_check_read+0x11/0x20 [ 467.360522][ T2771] ? __fdget_pos+0x27e/0x310 [ 467.365095][ T2771] ksys_write+0x198/0x2c0 [ 467.369413][ T2771] ? __ia32_sys_read+0x90/0x90 [ 467.374176][ T2771] ? debug_smp_processor_id+0x17/0x20 [ 467.379735][ T2771] __x64_sys_write+0x7b/0x90 [ 467.384750][ T2771] do_syscall_64+0x34/0x70 [ 467.389364][ T2771] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 467.395243][ T2771] RIP: 0033:0x7f48883727a9 [ 467.399814][ T2771] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 467.419548][ T2771] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 467.428000][ T2771] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 467.436169][ T2771] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 467.444144][ T2771] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 467.452112][ T2771] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 467.460109][ T2771] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000017 [ 467.468233][ T2771] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 467.507064][ T2777] FAULT_INJECTION: forcing a failure. [ 467.507064][ T2777] name failslab, interval 1, probability 0, space 0, times 0 [ 467.520196][ T2777] CPU: 0 PID: 2777 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 467.530708][ T2777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 467.540855][ T2777] Call Trace: [ 467.544237][ T2777] dump_stack_lvl+0x1e2/0x24b [ 467.549059][ T2777] ? bfq_pos_tree_add_move+0x43e/0x43e [ 467.554612][ T2777] ? selinux_kernfs_init_security+0x1a8/0x760 [ 467.560688][ T2777] dump_stack+0x15/0x17 [ 467.564843][ T2777] should_fail+0x3c0/0x510 [ 467.569340][ T2777] ? __kernfs_new_node+0x99/0x6e0 [ 467.574545][ T2777] __should_failslab+0x9f/0xe0 [ 467.579307][ T2777] should_failslab+0x9/0x20 [ 467.583803][ T2777] __kmalloc_track_caller+0x5f/0x350 [ 467.589082][ T2777] kstrdup_const+0x55/0x90 [ 467.593487][ T2777] __kernfs_new_node+0x99/0x6e0 [ 467.598421][ T2777] ? is_module_text_address+0xe1/0x140 [ 467.603996][ T2777] ? kernfs_new_node+0x170/0x170 [ 467.609290][ T2777] ? ptr_to_hashval+0x60/0x60 [ 467.614129][ T2777] ? mutex_lock+0xb2/0x1e0 [ 467.618540][ T2777] ? snprintf+0xd6/0x120 [ 467.622809][ T2777] ? mutex_unlock+0x29/0xf0 [ 467.627314][ T2777] kernfs_new_node+0x97/0x170 [ 467.632203][ T2777] __kernfs_create_file+0x4a/0x270 [ 467.637322][ T2777] cgroup_addrm_files+0xab8/0xfe0 [ 467.642337][ T2777] ? ____kasan_kmalloc+0xdc/0x110 [ 467.647346][ T2777] ? __kasan_kmalloc+0x9/0x10 [ 467.652020][ T2777] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 467.657571][ T2777] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 467.663731][ T2777] ? delete_node+0x759/0x7b0 [ 467.668418][ T2777] ? __kasan_check_read+0x11/0x20 [ 467.673540][ T2777] ? idr_replace+0x1c4/0x230 [ 467.678116][ T2777] ? idr_get_next+0x4b0/0x4b0 [ 467.682777][ T2777] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 467.687899][ T2777] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 467.693086][ T2777] css_populate_dir+0x137/0x370 [ 467.697928][ T2777] cgroup_apply_control_enable+0x8b9/0x12f0 [ 467.704186][ T2777] cgroup_apply_control+0x8e/0x7e0 [ 467.709384][ T2777] ? css_next_child+0x160/0x160 [ 467.714233][ T2777] ? stack_trace_save+0x12d/0x1f0 [ 467.719511][ T2777] ? io_schedule+0x120/0x120 [ 467.725041][ T2777] ? kernfs_fop_write_iter+0x15e/0x410 [ 467.730492][ T2777] ? __kasan_check_write+0x14/0x20 [ 467.735595][ T2777] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 467.740868][ T2777] cgroup_subtree_control_write+0xd19/0x1310 [ 467.746947][ T2777] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 467.752919][ T2777] ? __kasan_check_write+0x14/0x20 [ 467.758120][ T2777] ? _copy_from_iter+0x3fb/0xd60 [ 467.763049][ T2777] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 467.769015][ T2777] cgroup_file_write+0x28e/0x590 [ 467.774071][ T2777] ? cgroup_seqfile_stop+0xc0/0xc0 [ 467.779516][ T2777] ? mutex_trylock+0x180/0x180 [ 467.784289][ T2777] ? __kasan_check_write+0x14/0x20 [ 467.789602][ T2777] kernfs_fop_write_iter+0x2d0/0x410 [ 467.794903][ T2777] ? cgroup_seqfile_stop+0xc0/0xc0 [ 467.800180][ T2777] vfs_write+0xc4a/0xf80 [ 467.804433][ T2777] ? slab_free_freelist_hook+0xcc/0x1a0 [ 467.809989][ T2777] ? kernel_write+0x420/0x420 [ 467.814749][ T2777] ? do_sys_openat2+0x397/0x470 [ 467.819658][ T2777] ? __kasan_check_read+0x11/0x20 [ 467.824982][ T2777] ? __fdget_pos+0x27e/0x310 [ 467.829845][ T2777] ksys_write+0x198/0x2c0 [ 467.834267][ T2777] ? __ia32_sys_read+0x90/0x90 [ 467.839045][ T2777] ? debug_smp_processor_id+0x17/0x20 [ 467.844633][ T2777] __x64_sys_write+0x7b/0x90 [ 467.849213][ T2777] do_syscall_64+0x34/0x70 [ 467.853703][ T2777] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 467.859956][ T2777] RIP: 0033:0x7f48883727a9 [ 467.864364][ T2777] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 467.884046][ T2777] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 467.892477][ T2777] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 467.900437][ T2777] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 467.908399][ T2777] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 467.916546][ T2777] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 467.924505][ T2777] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000022 [ 467.932638][ T2777] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 467.967236][ T2776] FAULT_INJECTION: forcing a failure. [ 467.967236][ T2776] name failslab, interval 1, probability 0, space 0, times 0 [ 467.979915][ T2776] CPU: 1 PID: 2776 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 467.990319][ T2776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 468.000445][ T2776] Call Trace: [ 468.003736][ T2776] dump_stack_lvl+0x1e2/0x24b [ 468.008621][ T2776] ? bfq_pos_tree_add_move+0x43e/0x43e [ 468.014108][ T2776] ? selinux_kernfs_init_security+0x1a8/0x760 [ 468.020181][ T2776] dump_stack+0x15/0x17 [ 468.024355][ T2776] should_fail+0x3c0/0x510 [ 468.028867][ T2776] ? __kernfs_new_node+0x99/0x6e0 [ 468.033886][ T2776] __should_failslab+0x9f/0xe0 [ 468.038814][ T2776] should_failslab+0x9/0x20 [ 468.043425][ T2776] __kmalloc_track_caller+0x5f/0x350 [ 468.048702][ T2776] kstrdup_const+0x55/0x90 [ 468.053218][ T2776] __kernfs_new_node+0x99/0x6e0 [ 468.058184][ T2776] ? is_module_text_address+0xe1/0x140 [ 468.063623][ T2776] ? kernfs_new_node+0x170/0x170 [ 468.068551][ T2776] ? ptr_to_hashval+0x60/0x60 [ 468.073213][ T2776] ? mutex_lock+0xb2/0x1e0 [ 468.077792][ T2776] ? snprintf+0xd6/0x120 [ 468.082040][ T2776] ? mutex_unlock+0x29/0xf0 [ 468.086521][ T2776] kernfs_new_node+0x97/0x170 [ 468.091175][ T2776] __kernfs_create_file+0x4a/0x270 [ 468.096276][ T2776] cgroup_addrm_files+0xab8/0xfe0 [ 468.101307][ T2776] ? ____kasan_kmalloc+0xdc/0x110 [ 468.106419][ T2776] ? __kasan_kmalloc+0x9/0x10 [ 468.111178][ T2776] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 468.116720][ T2776] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 468.122986][ T2776] ? delete_node+0x759/0x7b0 [ 468.127695][ T2776] ? __kasan_check_read+0x11/0x20 [ 468.132824][ T2776] ? idr_replace+0x1c4/0x230 [ 468.137593][ T2776] ? idr_get_next+0x4b0/0x4b0 [ 468.142595][ T2776] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 468.147618][ T2776] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 468.152912][ T2776] css_populate_dir+0x137/0x370 [ 468.157781][ T2776] cgroup_apply_control_enable+0x8b9/0x12f0 [ 468.163836][ T2776] cgroup_apply_control+0x8e/0x7e0 [ 468.169071][ T2776] ? css_next_child+0x160/0x160 [ 468.173906][ T2776] ? stack_trace_save+0x12d/0x1f0 [ 468.179063][ T2776] ? io_schedule+0x120/0x120 [ 468.183648][ T2776] ? kernfs_fop_write_iter+0x15e/0x410 [ 468.189501][ T2776] ? __kasan_check_write+0x14/0x20 [ 468.194616][ T2776] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 468.200296][ T2776] cgroup_subtree_control_write+0xd19/0x1310 [ 468.206394][ T2776] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 468.212582][ T2776] ? __kasan_check_write+0x14/0x20 [ 468.217694][ T2776] ? _copy_from_iter+0x3fb/0xd60 [ 468.222632][ T2776] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 468.228696][ T2776] cgroup_file_write+0x28e/0x590 [ 468.233745][ T2776] ? cgroup_seqfile_stop+0xc0/0xc0 [ 468.238954][ T2776] ? mutex_trylock+0x180/0x180 [ 468.243705][ T2776] ? __kasan_check_write+0x14/0x20 [ 468.248801][ T2776] kernfs_fop_write_iter+0x2d0/0x410 [ 468.254077][ T2776] ? cgroup_seqfile_stop+0xc0/0xc0 [ 468.259281][ T2776] vfs_write+0xc4a/0xf80 [ 468.263521][ T2776] ? slab_free_freelist_hook+0xcc/0x1a0 [ 468.270021][ T2776] ? kernel_write+0x420/0x420 [ 468.274681][ T2776] ? do_sys_openat2+0x397/0x470 [ 468.279517][ T2776] ? __kasan_check_read+0x11/0x20 [ 468.284618][ T2776] ? __fdget_pos+0x27e/0x310 [ 468.289204][ T2776] ksys_write+0x198/0x2c0 [ 468.293606][ T2776] ? __ia32_sys_read+0x90/0x90 [ 468.298379][ T2776] ? debug_smp_processor_id+0x17/0x20 [ 468.303950][ T2776] __x64_sys_write+0x7b/0x90 [ 468.308528][ T2776] do_syscall_64+0x34/0x70 [ 468.315728][ T2776] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 468.321907][ T2776] RIP: 0033:0x7f48883727a9 [ 468.326398][ T2776] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 468.347006][ T2776] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 468.355417][ T2776] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 468.363378][ T2776] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 468.371424][ T2776] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 468.379392][ T2776] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 468.387551][ T2776] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000015 [ 468.396007][ T2776] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 468.427259][ T2783] FAULT_INJECTION: forcing a failure. [ 468.427259][ T2783] name failslab, interval 1, probability 0, space 0, times 0 [ 468.440185][ T2783] CPU: 1 PID: 2783 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 468.450574][ T2783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 468.460617][ T2783] Call Trace: [ 468.463895][ T2783] dump_stack_lvl+0x1e2/0x24b [ 468.468560][ T2783] ? panic+0x7d7/0x7d7 [ 468.472819][ T2783] ? bfq_pos_tree_add_move+0x43e/0x43e [ 468.478560][ T2783] ? selinux_kernfs_init_security+0x1a8/0x760 [ 468.484633][ T2783] dump_stack+0x15/0x17 [ 468.488868][ T2783] should_fail+0x3c0/0x510 [ 468.493450][ T2783] __should_failslab+0x9f/0xe0 [ 468.498354][ T2783] should_failslab+0x9/0x20 [ 468.502946][ T2783] kmem_cache_alloc+0x3f/0x300 [ 468.508020][ T2783] ? __kernfs_new_node+0xdb/0x6e0 [ 468.513292][ T2783] __kernfs_new_node+0xdb/0x6e0 [ 468.518603][ T2783] ? is_module_text_address+0xe1/0x140 [ 468.524149][ T2783] ? kernfs_new_node+0x170/0x170 [ 468.529594][ T2783] ? ptr_to_hashval+0x60/0x60 [ 468.534297][ T2783] ? arch_stack_walk+0xf8/0x140 [ 468.539180][ T2783] ? snprintf+0xd6/0x120 [ 468.543443][ T2783] kernfs_new_node+0x97/0x170 [ 468.548124][ T2783] __kernfs_create_file+0x4a/0x270 [ 468.553240][ T2783] cgroup_addrm_files+0xab8/0xfe0 [ 468.558847][ T2783] ? ____kasan_kmalloc+0xdc/0x110 [ 468.564082][ T2783] ? __kasan_kmalloc+0x9/0x10 [ 468.568856][ T2783] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 468.574502][ T2783] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 468.580675][ T2783] ? delete_node+0x759/0x7b0 [ 468.585281][ T2783] ? __kasan_check_read+0x11/0x20 [ 468.590299][ T2783] ? delete_node+0x759/0x7b0 [ 468.595030][ T2783] ? __kasan_check_write+0x14/0x20 [ 468.600143][ T2783] ? idr_replace+0x1c4/0x230 [ 468.604720][ T2783] ? idr_get_next+0x4b0/0x4b0 [ 468.609491][ T2783] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 468.614499][ T2783] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 468.619878][ T2783] css_populate_dir+0x137/0x370 [ 468.624814][ T2783] cgroup_apply_control_enable+0x8b9/0x12f0 [ 468.630704][ T2783] cgroup_apply_control+0x8e/0x7e0 [ 468.635816][ T2783] ? css_next_child+0x160/0x160 [ 468.640665][ T2783] ? stack_trace_save+0x12d/0x1f0 [ 468.645687][ T2783] ? io_schedule+0x120/0x120 [ 468.650468][ T2783] ? kernfs_fop_write_iter+0x15e/0x410 [ 468.655920][ T2783] ? __kasan_check_write+0x14/0x20 [ 468.661047][ T2783] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 468.666408][ T2783] cgroup_subtree_control_write+0xd19/0x1310 [ 468.672398][ T2783] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 468.678399][ T2783] ? __kasan_check_write+0x14/0x20 [ 468.683585][ T2783] ? _copy_from_iter+0x3fb/0xd60 [ 468.688606][ T2783] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 468.694574][ T2783] cgroup_file_write+0x28e/0x590 [ 468.699497][ T2783] ? cgroup_seqfile_stop+0xc0/0xc0 [ 468.704598][ T2783] ? mutex_trylock+0x180/0x180 [ 468.709370][ T2783] ? __kasan_check_write+0x14/0x20 [ 468.714554][ T2783] kernfs_fop_write_iter+0x2d0/0x410 [ 468.719822][ T2783] ? cgroup_seqfile_stop+0xc0/0xc0 [ 468.725094][ T2783] vfs_write+0xc4a/0xf80 [ 468.729326][ T2783] ? slab_free_freelist_hook+0xcc/0x1a0 [ 468.734870][ T2783] ? kernel_write+0x420/0x420 [ 468.739532][ T2783] ? do_sys_openat2+0x397/0x470 [ 468.744369][ T2783] ? __kasan_check_read+0x11/0x20 [ 468.749377][ T2783] ? __fdget_pos+0x27e/0x310 [ 468.754045][ T2783] ksys_write+0x198/0x2c0 [ 468.758356][ T2783] ? __ia32_sys_read+0x90/0x90 [ 468.763105][ T2783] ? debug_smp_processor_id+0x17/0x20 [ 468.768472][ T2783] __x64_sys_write+0x7b/0x90 [ 468.773069][ T2783] do_syscall_64+0x34/0x70 [ 468.777643][ T2783] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 468.783527][ T2783] RIP: 0033:0x7f48883727a9 [ 468.788086][ T2783] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 468.808006][ T2783] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 468.816419][ T2783] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 468.824548][ T2783] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 468.832634][ T2783] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 468.840623][ T2783] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 468.848936][ T2783] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000016 [ 468.857107][ T2783] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 468.907140][ T2779] FAULT_INJECTION: forcing a failure. [ 468.907140][ T2779] name failslab, interval 1, probability 0, space 0, times 0 [ 468.920325][ T2779] CPU: 0 PID: 2779 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 468.931084][ T2779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 468.941323][ T2779] Call Trace: [ 468.944614][ T2779] dump_stack_lvl+0x1e2/0x24b [ 468.949294][ T2779] ? bfq_pos_tree_add_move+0x43e/0x43e [ 468.954834][ T2779] ? selinux_kernfs_init_security+0x1a8/0x760 [ 468.961502][ T2779] dump_stack+0x15/0x17 [ 468.965655][ T2779] should_fail+0x3c0/0x510 [ 468.970117][ T2779] ? __kernfs_new_node+0x99/0x6e0 [ 468.975160][ T2779] __should_failslab+0x9f/0xe0 [ 468.980126][ T2779] should_failslab+0x9/0x20 [ 468.984622][ T2779] __kmalloc_track_caller+0x5f/0x350 [ 468.989920][ T2779] kstrdup_const+0x55/0x90 [ 468.994430][ T2779] __kernfs_new_node+0x99/0x6e0 [ 468.999369][ T2779] ? is_module_text_address+0xe1/0x140 [ 469.004883][ T2779] ? kernfs_new_node+0x170/0x170 [ 469.010375][ T2779] ? ptr_to_hashval+0x60/0x60 [ 469.015046][ T2779] ? mutex_lock+0xb2/0x1e0 [ 469.019703][ T2779] ? snprintf+0xd6/0x120 [ 469.023998][ T2779] ? mutex_unlock+0x29/0xf0 [ 469.028495][ T2779] kernfs_new_node+0x97/0x170 [ 469.033175][ T2779] __kernfs_create_file+0x4a/0x270 [ 469.038845][ T2779] cgroup_addrm_files+0xab8/0xfe0 [ 469.043981][ T2779] ? ____kasan_kmalloc+0xdc/0x110 [ 469.049236][ T2779] ? __kasan_kmalloc+0x9/0x10 [ 469.053901][ T2779] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 469.059974][ T2779] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 469.066493][ T2779] ? delete_node+0x759/0x7b0 [ 469.071132][ T2779] ? __kasan_check_read+0x11/0x20 [ 469.076275][ T2779] ? idr_replace+0x1c4/0x230 [ 469.080866][ T2779] ? idr_get_next+0x4b0/0x4b0 [ 469.085919][ T2779] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 469.091062][ T2779] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 469.096514][ T2779] css_populate_dir+0x137/0x370 [ 469.101365][ T2779] cgroup_apply_control_enable+0x8b9/0x12f0 [ 469.107259][ T2779] cgroup_apply_control+0x8e/0x7e0 [ 469.112368][ T2779] ? css_next_child+0x160/0x160 [ 469.117294][ T2779] ? io_schedule+0x120/0x120 [ 469.121978][ T2779] ? kernfs_fop_write_iter+0x15e/0x410 [ 469.127442][ T2779] ? __kasan_check_write+0x14/0x20 [ 469.132550][ T2779] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 469.137828][ T2779] cgroup_subtree_control_write+0xd19/0x1310 [ 469.144244][ T2779] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 469.150514][ T2779] ? __kasan_check_write+0x14/0x20 [ 469.155624][ T2779] ? _copy_from_iter+0x3fb/0xd60 [ 469.160549][ T2779] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 469.166538][ T2779] cgroup_file_write+0x28e/0x590 [ 469.172171][ T2779] ? cgroup_seqfile_stop+0xc0/0xc0 [ 469.177302][ T2779] ? mutex_trylock+0x180/0x180 [ 469.182101][ T2779] ? __kasan_check_write+0x14/0x20 [ 469.187205][ T2779] kernfs_fop_write_iter+0x2d0/0x410 [ 469.192675][ T2779] ? cgroup_seqfile_stop+0xc0/0xc0 [ 469.197959][ T2779] vfs_write+0xc4a/0xf80 [ 469.202305][ T2779] ? kernel_write+0x420/0x420 [ 469.206988][ T2779] ? do_sys_openat2+0x397/0x470 [ 469.211913][ T2779] ? __kasan_check_read+0x11/0x20 [ 469.217044][ T2779] ? __fdget_pos+0x27e/0x310 [ 469.221650][ T2779] ksys_write+0x198/0x2c0 [ 469.225985][ T2779] ? __ia32_sys_read+0x90/0x90 [ 469.230942][ T2779] ? debug_smp_processor_id+0x17/0x20 [ 469.236551][ T2779] __x64_sys_write+0x7b/0x90 [ 469.241406][ T2779] do_syscall_64+0x34/0x70 [ 469.245822][ T2779] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 469.251893][ T2779] RIP: 0033:0x7f48883727a9 [ 469.256315][ T2779] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 469.276093][ T2779] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 469.284670][ T2779] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 469.293265][ T2779] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 469.301440][ T2779] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 469.309858][ T2779] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 469.317907][ T2779] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000011 [ 469.326333][ T2779] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 469.367285][ T2780] FAULT_INJECTION: forcing a failure. [ 469.367285][ T2780] name failslab, interval 1, probability 0, space 0, times 0 [ 469.380608][ T2780] CPU: 1 PID: 2780 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 469.391144][ T2780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 469.401456][ T2780] Call Trace: [ 469.404751][ T2780] dump_stack_lvl+0x1e2/0x24b [ 469.409430][ T2780] ? panic+0x7d7/0x7d7 [ 469.413634][ T2780] ? bfq_pos_tree_add_move+0x43e/0x43e [ 469.419246][ T2780] ? selinux_kernfs_init_security+0x1a8/0x760 [ 469.425413][ T2780] dump_stack+0x15/0x17 [ 469.429648][ T2780] should_fail+0x3c0/0x510 [ 469.434167][ T2780] __should_failslab+0x9f/0xe0 [ 469.439292][ T2780] should_failslab+0x9/0x20 [ 469.443796][ T2780] kmem_cache_alloc+0x3f/0x300 [ 469.448552][ T2780] ? __kernfs_new_node+0xdb/0x6e0 [ 469.453559][ T2780] __kernfs_new_node+0xdb/0x6e0 [ 469.458397][ T2780] ? is_module_text_address+0xe1/0x140 [ 469.463846][ T2780] ? kernfs_new_node+0x170/0x170 [ 469.468894][ T2780] ? ptr_to_hashval+0x60/0x60 [ 469.473620][ T2780] ? arch_stack_walk+0xf8/0x140 [ 469.478485][ T2780] ? snprintf+0xd6/0x120 [ 469.482736][ T2780] kernfs_new_node+0x97/0x170 [ 469.487440][ T2780] __kernfs_create_file+0x4a/0x270 [ 469.492543][ T2780] cgroup_addrm_files+0xab8/0xfe0 [ 469.497555][ T2780] ? ____kasan_kmalloc+0xdc/0x110 [ 469.502562][ T2780] ? __kasan_kmalloc+0x9/0x10 [ 469.507333][ T2780] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 469.512878][ T2780] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 469.519036][ T2780] ? delete_node+0x759/0x7b0 [ 469.523618][ T2780] ? __kasan_check_read+0x11/0x20 [ 469.528647][ T2780] ? delete_node+0x759/0x7b0 [ 469.533489][ T2780] ? __kasan_check_write+0x14/0x20 [ 469.538623][ T2780] ? idr_replace+0x1c4/0x230 [ 469.543230][ T2780] ? idr_get_next+0x4b0/0x4b0 [ 469.548039][ T2780] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 469.553144][ T2780] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 469.558347][ T2780] css_populate_dir+0x137/0x370 [ 469.563181][ T2780] cgroup_apply_control_enable+0x8b9/0x12f0 [ 469.569074][ T2780] cgroup_apply_control+0x8e/0x7e0 [ 469.574173][ T2780] ? css_next_child+0x160/0x160 [ 469.579105][ T2780] ? stack_trace_save+0x12d/0x1f0 [ 469.584125][ T2780] ? io_schedule+0x120/0x120 [ 469.588812][ T2780] ? kernfs_fop_write_iter+0x15e/0x410 [ 469.594371][ T2780] ? __kasan_check_write+0x14/0x20 [ 469.599600][ T2780] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 469.605061][ T2780] cgroup_subtree_control_write+0xd19/0x1310 [ 469.611148][ T2780] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 469.617124][ T2780] ? __kasan_check_write+0x14/0x20 [ 469.622547][ T2780] ? _copy_from_iter+0x3fb/0xd60 [ 469.627763][ T2780] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 469.633748][ T2780] cgroup_file_write+0x28e/0x590 [ 469.638693][ T2780] ? cgroup_seqfile_stop+0xc0/0xc0 [ 469.643795][ T2780] ? mutex_trylock+0x180/0x180 [ 469.648566][ T2780] ? __kasan_check_write+0x14/0x20 [ 469.653680][ T2780] kernfs_fop_write_iter+0x2d0/0x410 [ 469.659309][ T2780] ? cgroup_seqfile_stop+0xc0/0xc0 [ 469.664434][ T2780] vfs_write+0xc4a/0xf80 [ 469.668925][ T2780] ? slab_free_freelist_hook+0xcc/0x1a0 [ 469.674511][ T2780] ? kernel_write+0x420/0x420 [ 469.679353][ T2780] ? do_sys_openat2+0x397/0x470 [ 469.684205][ T2780] ? __kasan_check_read+0x11/0x20 [ 469.689228][ T2780] ? __fdget_pos+0x27e/0x310 [ 469.693809][ T2780] ksys_write+0x198/0x2c0 [ 469.698139][ T2780] ? __ia32_sys_read+0x90/0x90 [ 469.702899][ T2780] ? debug_smp_processor_id+0x17/0x20 [ 469.708252][ T2780] __x64_sys_write+0x7b/0x90 [ 469.712827][ T2780] do_syscall_64+0x34/0x70 [ 469.717230][ T2780] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 469.723119][ T2780] RIP: 0033:0x7f48883727a9 [ 469.727777][ T2780] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 469.748602][ T2780] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 469.757541][ T2780] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 469.765519][ T2780] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 469.774192][ T2780] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 469.782239][ T2780] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 469.790470][ T2780] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000013 [ 469.798863][ T2780] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 469.827148][ T2785] FAULT_INJECTION: forcing a failure. [ 469.827148][ T2785] name failslab, interval 1, probability 0, space 0, times 0 [ 469.840069][ T2785] CPU: 1 PID: 2785 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 469.850836][ T2785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 469.861207][ T2785] Call Trace: [ 469.864498][ T2785] dump_stack_lvl+0x1e2/0x24b [ 469.869209][ T2785] ? panic+0x7d7/0x7d7 [ 469.873278][ T2785] ? bfq_pos_tree_add_move+0x43e/0x43e [ 469.878973][ T2785] ? do_syscall_64+0x34/0x70 [ 469.883661][ T2785] dump_stack+0x15/0x17 [ 469.887842][ T2785] should_fail+0x3c0/0x510 [ 469.892336][ T2785] __should_failslab+0x9f/0xe0 [ 469.897091][ T2785] should_failslab+0x9/0x20 [ 469.901767][ T2785] kmem_cache_alloc+0x3f/0x300 [ 469.906731][ T2785] ? __kernfs_new_node+0xdb/0x6e0 [ 469.911745][ T2785] __kernfs_new_node+0xdb/0x6e0 [ 469.916605][ T2785] ? is_module_text_address+0xe1/0x140 [ 469.922235][ T2785] ? kernfs_new_node+0x170/0x170 [ 469.927159][ T2785] ? ptr_to_hashval+0x60/0x60 [ 469.932185][ T2785] ? arch_stack_walk+0xf8/0x140 [ 469.937308][ T2785] ? snprintf+0xd6/0x120 [ 469.941546][ T2785] kernfs_new_node+0x97/0x170 [ 469.946301][ T2785] __kernfs_create_file+0x4a/0x270 [ 469.951784][ T2785] cgroup_addrm_files+0xab8/0xfe0 [ 469.956800][ T2785] ? ____kasan_kmalloc+0xdc/0x110 [ 469.961904][ T2785] ? __kasan_kmalloc+0x9/0x10 [ 469.966574][ T2785] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 469.972917][ T2785] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 469.979333][ T2785] ? delete_node+0x759/0x7b0 [ 469.984023][ T2785] ? __kasan_check_read+0x11/0x20 [ 469.989033][ T2785] ? delete_node+0x759/0x7b0 [ 469.993623][ T2785] ? __kasan_check_write+0x14/0x20 [ 469.998724][ T2785] ? idr_replace+0x1c4/0x230 [ 470.003390][ T2785] ? idr_get_next+0x4b0/0x4b0 [ 470.008063][ T2785] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 470.013085][ T2785] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 470.018283][ T2785] css_populate_dir+0x137/0x370 [ 470.023120][ T2785] cgroup_apply_control_enable+0x8b9/0x12f0 [ 470.029008][ T2785] cgroup_apply_control+0x8e/0x7e0 [ 470.034152][ T2785] ? css_next_child+0x160/0x160 [ 470.039007][ T2785] ? stack_trace_save+0x12d/0x1f0 [ 470.044301][ T2785] ? io_schedule+0x120/0x120 [ 470.049050][ T2785] ? kernfs_fop_write_iter+0x15e/0x410 [ 470.054644][ T2785] ? __kasan_check_write+0x14/0x20 [ 470.059868][ T2785] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 470.065348][ T2785] cgroup_subtree_control_write+0xd19/0x1310 [ 470.071333][ T2785] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 470.077467][ T2785] ? __kasan_check_write+0x14/0x20 [ 470.082680][ T2785] ? _copy_from_iter+0x3fb/0xd60 [ 470.087811][ T2785] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 470.093880][ T2785] cgroup_file_write+0x28e/0x590 [ 470.098809][ T2785] ? cgroup_seqfile_stop+0xc0/0xc0 [ 470.103922][ T2785] ? mutex_trylock+0x180/0x180 [ 470.108672][ T2785] ? __kasan_check_write+0x14/0x20 [ 470.113865][ T2785] kernfs_fop_write_iter+0x2d0/0x410 [ 470.119782][ T2785] ? cgroup_seqfile_stop+0xc0/0xc0 [ 470.124984][ T2785] vfs_write+0xc4a/0xf80 [ 470.129215][ T2785] ? slab_free_freelist_hook+0xcc/0x1a0 [ 470.134863][ T2785] ? kernel_write+0x420/0x420 [ 470.139535][ T2785] ? do_sys_openat2+0x397/0x470 [ 470.144549][ T2785] ? __kasan_check_read+0x11/0x20 [ 470.149652][ T2785] ? __fdget_pos+0x27e/0x310 [ 470.154412][ T2785] ksys_write+0x198/0x2c0 [ 470.158751][ T2785] ? __ia32_sys_read+0x90/0x90 [ 470.163652][ T2785] ? debug_smp_processor_id+0x17/0x20 [ 470.169109][ T2785] __x64_sys_write+0x7b/0x90 [ 470.173787][ T2785] do_syscall_64+0x34/0x70 [ 470.178277][ T2785] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 470.184301][ T2785] RIP: 0033:0x7f48883727a9 [ 470.188709][ T2785] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 470.208331][ T2785] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 470.216746][ T2785] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 470.224792][ T2785] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 470.232982][ T2785] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 470.241288][ T2785] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 470.249259][ T2785] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000012 [ 470.258126][ T2785] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 470.277270][ T2781] FAULT_INJECTION: forcing a failure. [ 470.277270][ T2781] name failslab, interval 1, probability 0, space 0, times 0 [ 470.290036][ T2781] CPU: 1 PID: 2781 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 470.300533][ T2781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 470.310908][ T2781] Call Trace: [ 470.314197][ T2781] dump_stack_lvl+0x1e2/0x24b [ 470.318861][ T2781] ? bfq_pos_tree_add_move+0x43e/0x43e [ 470.324395][ T2781] ? selinux_kernfs_init_security+0x1a8/0x760 [ 470.330457][ T2781] dump_stack+0x15/0x17 [ 470.334901][ T2781] should_fail+0x3c0/0x510 [ 470.339749][ T2781] ? __kernfs_new_node+0x99/0x6e0 [ 470.344768][ T2781] __should_failslab+0x9f/0xe0 [ 470.349518][ T2781] should_failslab+0x9/0x20 [ 470.354021][ T2781] __kmalloc_track_caller+0x5f/0x350 [ 470.359292][ T2781] kstrdup_const+0x55/0x90 [ 470.363696][ T2781] __kernfs_new_node+0x99/0x6e0 [ 470.368546][ T2781] ? is_module_text_address+0xe1/0x140 [ 470.374009][ T2781] ? kernfs_new_node+0x170/0x170 [ 470.378937][ T2781] ? ptr_to_hashval+0x60/0x60 [ 470.383710][ T2781] ? arch_stack_walk+0xf8/0x140 [ 470.388653][ T2781] ? snprintf+0xd6/0x120 [ 470.392886][ T2781] kernfs_new_node+0x97/0x170 [ 470.397690][ T2781] __kernfs_create_file+0x4a/0x270 [ 470.402826][ T2781] cgroup_addrm_files+0xab8/0xfe0 [ 470.407849][ T2781] ? ____kasan_kmalloc+0xdc/0x110 [ 470.412867][ T2781] ? __kasan_kmalloc+0x9/0x10 [ 470.417540][ T2781] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 470.423184][ T2781] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 470.429853][ T2781] ? delete_node+0x759/0x7b0 [ 470.434444][ T2781] ? __kasan_check_read+0x11/0x20 [ 470.439462][ T2781] ? delete_node+0x759/0x7b0 [ 470.444048][ T2781] ? __kasan_check_write+0x14/0x20 [ 470.449253][ T2781] ? idr_replace+0x1c4/0x230 [ 470.454196][ T2781] ? idr_get_next+0x4b0/0x4b0 [ 470.458863][ T2781] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 470.464055][ T2781] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 470.469432][ T2781] css_populate_dir+0x137/0x370 [ 470.474404][ T2781] cgroup_apply_control_enable+0x8b9/0x12f0 [ 470.480303][ T2781] cgroup_apply_control+0x8e/0x7e0 [ 470.485594][ T2781] ? css_next_child+0x160/0x160 [ 470.490550][ T2781] ? stack_trace_save+0x12d/0x1f0 [ 470.495576][ T2781] ? io_schedule+0x120/0x120 [ 470.500476][ T2781] ? kernfs_fop_write_iter+0x15e/0x410 [ 470.507131][ T2781] ? __kasan_check_write+0x14/0x20 [ 470.512301][ T2781] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 470.517668][ T2781] cgroup_subtree_control_write+0xd19/0x1310 [ 470.525061][ T2781] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 470.531614][ T2781] ? __kasan_check_write+0x14/0x20 [ 470.537004][ T2781] ? _copy_from_iter+0x3fb/0xd60 [ 470.542076][ T2781] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 470.549326][ T2781] cgroup_file_write+0x28e/0x590 [ 470.555141][ T2781] ? cgroup_seqfile_stop+0xc0/0xc0 [ 470.560278][ T2781] ? mutex_trylock+0x180/0x180 [ 470.565213][ T2781] ? __kasan_check_write+0x14/0x20 [ 470.570322][ T2781] kernfs_fop_write_iter+0x2d0/0x410 [ 470.575602][ T2781] ? cgroup_seqfile_stop+0xc0/0xc0 [ 470.580716][ T2781] vfs_write+0xc4a/0xf80 [ 470.585190][ T2781] ? slab_free_freelist_hook+0xcc/0x1a0 [ 470.590832][ T2781] ? kernel_write+0x420/0x420 [ 470.595594][ T2781] ? do_sys_openat2+0x397/0x470 [ 470.600757][ T2781] ? __kasan_check_read+0x11/0x20 [ 470.605862][ T2781] ? __fdget_pos+0x27e/0x310 [ 470.610442][ T2781] ksys_write+0x198/0x2c0 [ 470.614757][ T2781] ? __ia32_sys_read+0x90/0x90 [ 470.619508][ T2781] ? debug_smp_processor_id+0x17/0x20 [ 470.624955][ T2781] __x64_sys_write+0x7b/0x90 [ 470.629630][ T2781] do_syscall_64+0x34/0x70 [ 470.634078][ T2781] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 470.639961][ T2781] RIP: 0033:0x7f48883727a9 [ 470.644360][ T2781] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 470.664217][ T2781] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 470.672710][ T2781] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 470.680817][ T2781] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 470.688786][ T2781] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 470.696748][ T2781] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 470.704742][ T2781] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000018 [ 470.713170][ T2781] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 470.757082][ T2784] FAULT_INJECTION: forcing a failure. [ 470.757082][ T2784] name failslab, interval 1, probability 0, space 0, times 0 [ 470.770063][ T2784] CPU: 0 PID: 2784 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 470.780548][ T2784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 470.790698][ T2784] Call Trace: [ 470.794108][ T2784] dump_stack_lvl+0x1e2/0x24b [ 470.798917][ T2784] ? bfq_pos_tree_add_move+0x43e/0x43e [ 470.804508][ T2784] ? selinux_kernfs_init_security+0x1a8/0x760 [ 470.810564][ T2784] dump_stack+0x15/0x17 [ 470.814706][ T2784] should_fail+0x3c0/0x510 [ 470.819105][ T2784] ? __kernfs_new_node+0x99/0x6e0 [ 470.824544][ T2784] __should_failslab+0x9f/0xe0 [ 470.829311][ T2784] should_failslab+0x9/0x20 [ 470.834155][ T2784] __kmalloc_track_caller+0x5f/0x350 [ 470.839529][ T2784] kstrdup_const+0x55/0x90 [ 470.844098][ T2784] __kernfs_new_node+0x99/0x6e0 [ 470.848962][ T2784] ? is_module_text_address+0xe1/0x140 [ 470.854417][ T2784] ? kernfs_new_node+0x170/0x170 [ 470.859385][ T2784] ? ptr_to_hashval+0x60/0x60 [ 470.864135][ T2784] ? mutex_lock+0xb2/0x1e0 [ 470.868544][ T2784] ? snprintf+0xd6/0x120 [ 470.872940][ T2784] ? mutex_unlock+0x29/0xf0 [ 470.877425][ T2784] kernfs_new_node+0x97/0x170 [ 470.882083][ T2784] __kernfs_create_file+0x4a/0x270 [ 470.887195][ T2784] cgroup_addrm_files+0xab8/0xfe0 [ 470.892287][ T2784] ? ____kasan_kmalloc+0xdc/0x110 [ 470.897293][ T2784] ? __kasan_kmalloc+0x9/0x10 [ 470.901965][ T2784] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 470.907515][ T2784] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 470.913747][ T2784] ? delete_node+0x759/0x7b0 [ 470.918446][ T2784] ? __kasan_check_read+0x11/0x20 [ 470.923660][ T2784] ? idr_replace+0x1c4/0x230 [ 470.928246][ T2784] ? idr_get_next+0x4b0/0x4b0 [ 470.932916][ T2784] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 470.937924][ T2784] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 470.943166][ T2784] css_populate_dir+0x137/0x370 [ 470.948003][ T2784] cgroup_apply_control_enable+0x8b9/0x12f0 [ 470.953881][ T2784] cgroup_apply_control+0x8e/0x7e0 [ 470.958977][ T2784] ? css_next_child+0x160/0x160 [ 470.964156][ T2784] ? stack_trace_save+0x12d/0x1f0 [ 470.969351][ T2784] ? io_schedule+0x120/0x120 [ 470.974130][ T2784] ? kernfs_fop_write_iter+0x15e/0x410 [ 470.979611][ T2784] ? __kasan_check_write+0x14/0x20 [ 470.984722][ T2784] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 470.990010][ T2784] cgroup_subtree_control_write+0xd19/0x1310 [ 470.995985][ T2784] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 471.001960][ T2784] ? __kasan_check_write+0x14/0x20 [ 471.007056][ T2784] ? _copy_from_iter+0x3fb/0xd60 [ 471.012007][ T2784] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 471.018236][ T2784] cgroup_file_write+0x28e/0x590 [ 471.023459][ T2784] ? cgroup_seqfile_stop+0xc0/0xc0 [ 471.028649][ T2784] ? mutex_trylock+0x180/0x180 [ 471.033469][ T2784] ? __kasan_check_write+0x14/0x20 [ 471.039032][ T2784] kernfs_fop_write_iter+0x2d0/0x410 [ 471.044618][ T2784] ? cgroup_seqfile_stop+0xc0/0xc0 [ 471.050388][ T2784] vfs_write+0xc4a/0xf80 [ 471.054960][ T2784] ? slab_free_freelist_hook+0xcc/0x1a0 [ 471.060511][ T2784] ? kernel_write+0x420/0x420 [ 471.065538][ T2784] ? do_sys_openat2+0x397/0x470 [ 471.070685][ T2784] ? __kasan_check_read+0x11/0x20 [ 471.076071][ T2784] ? __fdget_pos+0x27e/0x310 [ 471.080940][ T2784] ksys_write+0x198/0x2c0 [ 471.085354][ T2784] ? __ia32_sys_read+0x90/0x90 [ 471.090640][ T2784] ? debug_smp_processor_id+0x17/0x20 [ 471.096113][ T2784] __x64_sys_write+0x7b/0x90 [ 471.100882][ T2784] do_syscall_64+0x34/0x70 [ 471.105380][ T2784] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 471.111561][ T2784] RIP: 0033:0x7f48883727a9 [ 471.115966][ T2784] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 471.135904][ T2784] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 471.144395][ T2784] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 471.152522][ T2784] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 471.160475][ T2784] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 471.168642][ T2784] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 471.176595][ T2784] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000017 [ 471.184802][ T2784] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 471.227092][ T2787] FAULT_INJECTION: forcing a failure. [ 471.227092][ T2787] name failslab, interval 1, probability 0, space 0, times 0 [ 471.239740][ T2787] CPU: 0 PID: 2787 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 471.250238][ T2787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 471.261063][ T2787] Call Trace: [ 471.264378][ T2787] dump_stack_lvl+0x1e2/0x24b [ 471.269401][ T2787] ? bfq_pos_tree_add_move+0x43e/0x43e [ 471.274931][ T2787] ? selinux_kernfs_init_security+0x1a8/0x760 [ 471.281100][ T2787] dump_stack+0x15/0x17 [ 471.285505][ T2787] should_fail+0x3c0/0x510 [ 471.290108][ T2787] ? __kernfs_new_node+0x99/0x6e0 [ 471.295249][ T2787] __should_failslab+0x9f/0xe0 [ 471.300003][ T2787] should_failslab+0x9/0x20 [ 471.304836][ T2787] __kmalloc_track_caller+0x5f/0x350 [ 471.310119][ T2787] kstrdup_const+0x55/0x90 [ 471.315456][ T2787] __kernfs_new_node+0x99/0x6e0 [ 471.320416][ T2787] ? is_module_text_address+0xe1/0x140 [ 471.325907][ T2787] ? kernfs_new_node+0x170/0x170 [ 471.330849][ T2787] ? ptr_to_hashval+0x60/0x60 [ 471.335614][ T2787] ? mutex_lock+0xb2/0x1e0 [ 471.340277][ T2787] ? snprintf+0xd6/0x120 [ 471.344639][ T2787] ? mutex_unlock+0x29/0xf0 [ 471.349139][ T2787] kernfs_new_node+0x97/0x170 [ 471.353872][ T2787] __kernfs_create_file+0x4a/0x270 [ 471.359085][ T2787] cgroup_addrm_files+0xab8/0xfe0 [ 471.364109][ T2787] ? ____kasan_kmalloc+0xdc/0x110 [ 471.369226][ T2787] ? __kasan_kmalloc+0x9/0x10 [ 471.373909][ T2787] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 471.379774][ T2787] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 471.386008][ T2787] ? delete_node+0x759/0x7b0 [ 471.390584][ T2787] ? __kasan_check_read+0x11/0x20 [ 471.395590][ T2787] ? idr_replace+0x1c4/0x230 [ 471.400172][ T2787] ? idr_get_next+0x4b0/0x4b0 [ 471.404945][ T2787] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 471.409962][ T2787] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 471.415177][ T2787] css_populate_dir+0x137/0x370 [ 471.420036][ T2787] cgroup_apply_control_enable+0x8b9/0x12f0 [ 471.425918][ T2787] cgroup_apply_control+0x8e/0x7e0 [ 471.431017][ T2787] ? css_next_child+0x160/0x160 [ 471.436035][ T2787] ? stack_trace_save+0x12d/0x1f0 [ 471.441045][ T2787] ? io_schedule+0x120/0x120 [ 471.445623][ T2787] ? kernfs_fop_write_iter+0x15e/0x410 [ 471.451092][ T2787] ? __kasan_check_write+0x14/0x20 [ 471.456341][ T2787] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 471.461636][ T2787] cgroup_subtree_control_write+0xd19/0x1310 [ 471.467623][ T2787] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 471.473795][ T2787] ? __kasan_check_write+0x14/0x20 [ 471.479103][ T2787] ? _copy_from_iter+0x3fb/0xd60 [ 471.484115][ T2787] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 471.490123][ T2787] cgroup_file_write+0x28e/0x590 [ 471.495177][ T2787] ? cgroup_seqfile_stop+0xc0/0xc0 [ 471.500538][ T2787] ? mutex_trylock+0x180/0x180 [ 471.505443][ T2787] ? __kasan_check_write+0x14/0x20 [ 471.510658][ T2787] kernfs_fop_write_iter+0x2d0/0x410 [ 471.515998][ T2787] ? cgroup_seqfile_stop+0xc0/0xc0 [ 471.521181][ T2787] vfs_write+0xc4a/0xf80 [ 471.525427][ T2787] ? slab_free_freelist_hook+0xcc/0x1a0 [ 471.531097][ T2787] ? kernel_write+0x420/0x420 [ 471.535757][ T2787] ? do_sys_openat2+0x397/0x470 [ 471.540592][ T2787] ? __kasan_check_read+0x11/0x20 [ 471.545618][ T2787] ? __fdget_pos+0x27e/0x310 [ 471.550210][ T2787] ksys_write+0x198/0x2c0 [ 471.554542][ T2787] ? __ia32_sys_read+0x90/0x90 [ 471.559299][ T2787] ? debug_smp_processor_id+0x17/0x20 [ 471.564656][ T2787] __x64_sys_write+0x7b/0x90 [ 471.569241][ T2787] do_syscall_64+0x34/0x70 [ 471.573920][ T2787] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 471.580225][ T2787] RIP: 0033:0x7f48883727a9 [ 471.584924][ T2787] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 471.604776][ T2787] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 471.613437][ T2787] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 471.621397][ T2787] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 471.629364][ T2787] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 471.637409][ T2787] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 471.645592][ T2787] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000013 [ 471.653729][ T2787] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 471.697249][ T2788] FAULT_INJECTION: forcing a failure. [ 471.697249][ T2788] name failslab, interval 1, probability 0, space 0, times 0 [ 471.709913][ T2788] CPU: 0 PID: 2788 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 471.720407][ T2788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 471.730545][ T2788] Call Trace: [ 471.733873][ T2788] dump_stack_lvl+0x1e2/0x24b [ 471.738539][ T2788] ? panic+0x7d7/0x7d7 [ 471.742585][ T2788] ? bfq_pos_tree_add_move+0x43e/0x43e [ 471.748105][ T2788] ? selinux_kernfs_init_security+0x1a8/0x760 [ 471.754330][ T2788] dump_stack+0x15/0x17 [ 471.758579][ T2788] should_fail+0x3c0/0x510 [ 471.762977][ T2788] __should_failslab+0x9f/0xe0 [ 471.767730][ T2788] should_failslab+0x9/0x20 [ 471.772218][ T2788] kmem_cache_alloc+0x3f/0x300 [ 471.777044][ T2788] ? __kernfs_new_node+0xdb/0x6e0 [ 471.782185][ T2788] __kernfs_new_node+0xdb/0x6e0 [ 471.787038][ T2788] ? is_module_text_address+0xe1/0x140 [ 471.792482][ T2788] ? kernfs_new_node+0x170/0x170 [ 471.797404][ T2788] ? ptr_to_hashval+0x60/0x60 [ 471.802080][ T2788] ? arch_stack_walk+0xf8/0x140 [ 471.807078][ T2788] ? snprintf+0xd6/0x120 [ 471.811511][ T2788] kernfs_new_node+0x97/0x170 [ 471.816345][ T2788] __kernfs_create_file+0x4a/0x270 [ 471.821433][ T2788] cgroup_addrm_files+0xab8/0xfe0 [ 471.826608][ T2788] ? ____kasan_kmalloc+0xdc/0x110 [ 471.831607][ T2788] ? __kasan_kmalloc+0x9/0x10 [ 471.836360][ T2788] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 471.841893][ T2788] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 471.848022][ T2788] ? delete_node+0x759/0x7b0 [ 471.852589][ T2788] ? __kasan_check_read+0x11/0x20 [ 471.857605][ T2788] ? delete_node+0x759/0x7b0 [ 471.862169][ T2788] ? __kasan_check_write+0x14/0x20 [ 471.867258][ T2788] ? idr_replace+0x1c4/0x230 [ 471.871936][ T2788] ? idr_get_next+0x4b0/0x4b0 [ 471.876606][ T2788] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 471.881691][ T2788] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 471.886952][ T2788] css_populate_dir+0x137/0x370 [ 471.892042][ T2788] cgroup_apply_control_enable+0x8b9/0x12f0 [ 471.897921][ T2788] cgroup_apply_control+0x8e/0x7e0 [ 471.903024][ T2788] ? css_next_child+0x160/0x160 [ 471.907851][ T2788] ? stack_trace_save+0x12d/0x1f0 [ 471.913199][ T2788] ? io_schedule+0x120/0x120 [ 471.917768][ T2788] ? kernfs_fop_write_iter+0x15e/0x410 [ 471.923221][ T2788] ? __kasan_check_write+0x14/0x20 [ 471.928401][ T2788] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 471.933758][ T2788] cgroup_subtree_control_write+0xd19/0x1310 [ 471.939727][ T2788] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 471.945711][ T2788] ? __kasan_check_write+0x14/0x20 [ 471.950901][ T2788] ? _copy_from_iter+0x3fb/0xd60 [ 471.955916][ T2788] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 471.962130][ T2788] cgroup_file_write+0x28e/0x590 [ 471.967045][ T2788] ? cgroup_seqfile_stop+0xc0/0xc0 [ 471.972142][ T2788] ? mutex_trylock+0x180/0x180 [ 471.976967][ T2788] ? __kasan_check_write+0x14/0x20 [ 471.982067][ T2788] kernfs_fop_write_iter+0x2d0/0x410 [ 471.987336][ T2788] ? cgroup_seqfile_stop+0xc0/0xc0 [ 471.992446][ T2788] vfs_write+0xc4a/0xf80 [ 471.996688][ T2788] ? slab_free_freelist_hook+0xcc/0x1a0 [ 472.002245][ T2788] ? kernel_write+0x420/0x420 [ 472.006912][ T2788] ? do_sys_openat2+0x397/0x470 [ 472.011786][ T2788] ? __kasan_check_read+0x11/0x20 [ 472.016795][ T2788] ? __fdget_pos+0x27e/0x310 [ 472.021540][ T2788] ksys_write+0x198/0x2c0 [ 472.025854][ T2788] ? __kasan_check_write+0x14/0x20 [ 472.031016][ T2788] ? __ia32_sys_read+0x90/0x90 [ 472.035758][ T2788] ? debug_smp_processor_id+0x17/0x20 [ 472.041105][ T2788] __x64_sys_write+0x7b/0x90 [ 472.045670][ T2788] do_syscall_64+0x34/0x70 [ 472.050078][ T2788] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 472.056126][ T2788] RIP: 0033:0x7f48883727a9 [ 472.060548][ T2788] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 472.080338][ T2788] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 472.088865][ T2788] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 472.096833][ T2788] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 472.104792][ T2788] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 472.112831][ T2788] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 472.120780][ T2788] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000019 [ 472.128978][ T2788] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 472.177359][ T2791] FAULT_INJECTION: forcing a failure. [ 472.177359][ T2791] name failslab, interval 1, probability 0, space 0, times 0 [ 472.190162][ T2791] CPU: 0 PID: 2791 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 472.200828][ T2791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 472.210862][ T2791] Call Trace: [ 472.214157][ T2791] dump_stack_lvl+0x1e2/0x24b [ 472.218824][ T2791] ? bfq_pos_tree_add_move+0x43e/0x43e [ 472.224372][ T2791] ? selinux_kernfs_init_security+0x1a8/0x760 [ 472.230557][ T2791] dump_stack+0x15/0x17 [ 472.234735][ T2791] should_fail+0x3c0/0x510 [ 472.239188][ T2791] ? __kernfs_new_node+0x99/0x6e0 [ 472.244287][ T2791] __should_failslab+0x9f/0xe0 [ 472.249066][ T2791] should_failslab+0x9/0x20 [ 472.253549][ T2791] __kmalloc_track_caller+0x5f/0x350 [ 472.258815][ T2791] kstrdup_const+0x55/0x90 [ 472.263211][ T2791] __kernfs_new_node+0x99/0x6e0 [ 472.268034][ T2791] ? is_module_text_address+0xe1/0x140 [ 472.273465][ T2791] ? kernfs_new_node+0x170/0x170 [ 472.278462][ T2791] ? ptr_to_hashval+0x60/0x60 [ 472.283107][ T2791] ? mutex_lock+0xb2/0x1e0 [ 472.287597][ T2791] ? snprintf+0xd6/0x120 [ 472.292010][ T2791] ? mutex_unlock+0x29/0xf0 [ 472.296583][ T2791] kernfs_new_node+0x97/0x170 [ 472.301246][ T2791] __kernfs_create_file+0x4a/0x270 [ 472.306430][ T2791] cgroup_addrm_files+0xab8/0xfe0 [ 472.311515][ T2791] ? ____kasan_kmalloc+0xdc/0x110 [ 472.316628][ T2791] ? __kasan_kmalloc+0x9/0x10 [ 472.321471][ T2791] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 472.327165][ T2791] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 472.333373][ T2791] ? delete_node+0x759/0x7b0 [ 472.338054][ T2791] ? __kasan_check_read+0x11/0x20 [ 472.343246][ T2791] ? idr_replace+0x1c4/0x230 [ 472.347918][ T2791] ? idr_get_next+0x4b0/0x4b0 [ 472.352603][ T2791] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 472.357650][ T2791] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 472.362825][ T2791] css_populate_dir+0x137/0x370 [ 472.368521][ T2791] cgroup_apply_control_enable+0x8b9/0x12f0 [ 472.374412][ T2791] cgroup_apply_control+0x8e/0x7e0 [ 472.379547][ T2791] ? css_next_child+0x160/0x160 [ 472.384599][ T2791] ? stack_trace_save+0x12d/0x1f0 [ 472.389636][ T2791] ? io_schedule+0x120/0x120 [ 472.394203][ T2791] ? kernfs_fop_write_iter+0x15e/0x410 [ 472.399760][ T2791] ? __kasan_check_write+0x14/0x20 [ 472.405007][ T2791] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 472.410282][ T2791] cgroup_subtree_control_write+0xd19/0x1310 [ 472.416784][ T2791] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 472.422778][ T2791] ? __kasan_check_write+0x14/0x20 [ 472.428049][ T2791] ? _copy_from_iter+0x3fb/0xd60 [ 472.433064][ T2791] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 472.439021][ T2791] cgroup_file_write+0x28e/0x590 [ 472.443939][ T2791] ? cgroup_seqfile_stop+0xc0/0xc0 [ 472.449041][ T2791] ? mutex_trylock+0x180/0x180 [ 472.453799][ T2791] ? __kasan_check_write+0x14/0x20 [ 472.458883][ T2791] kernfs_fop_write_iter+0x2d0/0x410 [ 472.464167][ T2791] ? cgroup_seqfile_stop+0xc0/0xc0 [ 472.469384][ T2791] vfs_write+0xc4a/0xf80 [ 472.473619][ T2791] ? slab_free_freelist_hook+0xcc/0x1a0 [ 472.479282][ T2791] ? kernel_write+0x420/0x420 [ 472.484066][ T2791] ? do_sys_openat2+0x397/0x470 [ 472.488970][ T2791] ? __kasan_check_read+0x11/0x20 [ 472.493971][ T2791] ? __fdget_pos+0x27e/0x310 [ 472.498745][ T2791] ksys_write+0x198/0x2c0 [ 472.503287][ T2791] ? __ia32_sys_read+0x90/0x90 [ 472.508128][ T2791] ? debug_smp_processor_id+0x17/0x20 [ 472.513487][ T2791] __x64_sys_write+0x7b/0x90 [ 472.518137][ T2791] do_syscall_64+0x34/0x70 [ 472.522658][ T2791] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 472.528544][ T2791] RIP: 0033:0x7f48883727a9 [ 472.533056][ T2791] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 472.552852][ T2791] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 472.561245][ T2791] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 472.569282][ T2791] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 472.577371][ T2791] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 472.585318][ T2791] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 472.593263][ T2791] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001a [ 472.601518][ T2791] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 472.658116][ T2790] FAULT_INJECTION: forcing a failure. [ 472.658116][ T2790] name failslab, interval 1, probability 0, space 0, times 0 [ 472.671253][ T2790] CPU: 0 PID: 2790 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 472.681696][ T2790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 472.691919][ T2790] Call Trace: [ 472.695212][ T2790] dump_stack_lvl+0x1e2/0x24b [ 472.699888][ T2790] ? bfq_pos_tree_add_move+0x43e/0x43e [ 472.705355][ T2790] ? selinux_kernfs_init_security+0x1a8/0x760 [ 472.711511][ T2790] dump_stack+0x15/0x17 [ 472.715664][ T2790] should_fail+0x3c0/0x510 [ 472.720068][ T2790] ? __kernfs_new_node+0x99/0x6e0 [ 472.725095][ T2790] __should_failslab+0x9f/0xe0 [ 472.730121][ T2790] should_failslab+0x9/0x20 [ 472.734617][ T2790] __kmalloc_track_caller+0x5f/0x350 [ 472.739905][ T2790] kstrdup_const+0x55/0x90 [ 472.744872][ T2790] __kernfs_new_node+0x99/0x6e0 [ 472.750084][ T2790] ? is_module_text_address+0xe1/0x140 [ 472.755534][ T2790] ? kernfs_new_node+0x170/0x170 [ 472.760537][ T2790] ? ptr_to_hashval+0x60/0x60 [ 472.765286][ T2790] ? mutex_lock+0xb2/0x1e0 [ 472.769688][ T2790] ? snprintf+0xd6/0x120 [ 472.773910][ T2790] ? mutex_unlock+0x29/0xf0 [ 472.778395][ T2790] kernfs_new_node+0x97/0x170 [ 472.783049][ T2790] __kernfs_create_file+0x4a/0x270 [ 472.788140][ T2790] cgroup_addrm_files+0xab8/0xfe0 [ 472.793156][ T2790] ? ____kasan_kmalloc+0xdc/0x110 [ 472.798162][ T2790] ? __kasan_kmalloc+0x9/0x10 [ 472.802913][ T2790] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 472.808455][ T2790] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 472.814597][ T2790] ? delete_node+0x759/0x7b0 [ 472.819167][ T2790] ? __kasan_check_read+0x11/0x20 [ 472.824182][ T2790] ? idr_replace+0x1c4/0x230 [ 472.828762][ T2790] ? idr_get_next+0x4b0/0x4b0 [ 472.833422][ T2790] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 472.838474][ T2790] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 472.843683][ T2790] css_populate_dir+0x137/0x370 [ 472.848538][ T2790] cgroup_apply_control_enable+0x8b9/0x12f0 [ 472.854428][ T2790] cgroup_apply_control+0x8e/0x7e0 [ 472.859750][ T2790] ? css_next_child+0x160/0x160 [ 472.864595][ T2790] ? io_schedule+0x120/0x120 [ 472.869210][ T2790] ? kernfs_fop_write_iter+0x15e/0x410 [ 472.874748][ T2790] ? __kasan_check_write+0x14/0x20 [ 472.879934][ T2790] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 472.885203][ T2790] cgroup_subtree_control_write+0xd19/0x1310 [ 472.891385][ T2790] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 472.897429][ T2790] ? __kasan_check_write+0x14/0x20 [ 472.902630][ T2790] ? _copy_from_iter+0x3fb/0xd60 [ 472.907766][ T2790] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 472.913981][ T2790] cgroup_file_write+0x28e/0x590 [ 472.919060][ T2790] ? cgroup_seqfile_stop+0xc0/0xc0 [ 472.924274][ T2790] ? mutex_trylock+0x180/0x180 [ 472.929030][ T2790] ? __kasan_check_write+0x14/0x20 [ 472.934132][ T2790] kernfs_fop_write_iter+0x2d0/0x410 [ 472.939401][ T2790] ? cgroup_seqfile_stop+0xc0/0xc0 [ 472.944510][ T2790] vfs_write+0xc4a/0xf80 [ 472.948733][ T2790] ? kernel_write+0x420/0x420 [ 472.953560][ T2790] ? do_sys_openat2+0x397/0x470 [ 472.958404][ T2790] ? __kasan_check_read+0x11/0x20 [ 472.963419][ T2790] ? __fdget_pos+0x27e/0x310 [ 472.968085][ T2790] ksys_write+0x198/0x2c0 [ 472.972392][ T2790] ? __kasan_check_write+0x14/0x20 [ 472.977486][ T2790] ? __ia32_sys_read+0x90/0x90 [ 472.982266][ T2790] ? debug_smp_processor_id+0x17/0x20 [ 472.987803][ T2790] __x64_sys_write+0x7b/0x90 [ 472.992387][ T2790] do_syscall_64+0x34/0x70 [ 472.996782][ T2790] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 473.002653][ T2790] RIP: 0033:0x7f48883727a9 [ 473.007224][ T2790] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 473.026812][ T2790] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 473.035410][ T2790] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 473.043636][ T2790] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 473.051615][ T2790] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 473.059574][ T2790] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 473.067542][ T2790] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000014 [ 473.075689][ T2790] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 473.107235][ T2786] FAULT_INJECTION: forcing a failure. [ 473.107235][ T2786] name failslab, interval 1, probability 0, space 0, times 0 [ 473.120172][ T2786] CPU: 1 PID: 2786 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 473.130590][ T2786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 473.140809][ T2786] Call Trace: [ 473.144098][ T2786] dump_stack_lvl+0x1e2/0x24b [ 473.148886][ T2786] ? panic+0x7d7/0x7d7 [ 473.152980][ T2786] ? bfq_pos_tree_add_move+0x43e/0x43e [ 473.158438][ T2786] ? selinux_kernfs_init_security+0x1a8/0x760 [ 473.164498][ T2786] ? ___slab_alloc+0xa9/0x2e0 [ 473.169160][ T2786] dump_stack+0x15/0x17 [ 473.173295][ T2786] should_fail+0x3c0/0x510 [ 473.177692][ T2786] __should_failslab+0x9f/0xe0 [ 473.182450][ T2786] should_failslab+0x9/0x20 [ 473.187174][ T2786] kmem_cache_alloc+0x3f/0x300 [ 473.192018][ T2786] ? __kernfs_new_node+0xdb/0x6e0 [ 473.197028][ T2786] __kernfs_new_node+0xdb/0x6e0 [ 473.201861][ T2786] ? is_module_text_address+0xe1/0x140 [ 473.207387][ T2786] ? kernfs_new_node+0x170/0x170 [ 473.212407][ T2786] ? ptr_to_hashval+0x60/0x60 [ 473.217080][ T2786] ? arch_stack_walk+0xf8/0x140 [ 473.221911][ T2786] ? snprintf+0xd6/0x120 [ 473.226132][ T2786] kernfs_new_node+0x97/0x170 [ 473.230787][ T2786] __kernfs_create_file+0x4a/0x270 [ 473.235907][ T2786] cgroup_addrm_files+0xab8/0xfe0 [ 473.240954][ T2786] ? ____kasan_kmalloc+0xdc/0x110 [ 473.245974][ T2786] ? __kasan_kmalloc+0x9/0x10 [ 473.250718][ T2786] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 473.256327][ T2786] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 473.262461][ T2786] ? delete_node+0x759/0x7b0 [ 473.267029][ T2786] ? __kasan_check_read+0x11/0x20 [ 473.272030][ T2786] ? delete_node+0x759/0x7b0 [ 473.276599][ T2786] ? __kasan_check_write+0x14/0x20 [ 473.281695][ T2786] ? idr_replace+0x1c4/0x230 [ 473.286262][ T2786] ? idr_get_next+0x4b0/0x4b0 [ 473.290918][ T2786] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 473.295926][ T2786] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 473.301104][ T2786] css_populate_dir+0x137/0x370 [ 473.305941][ T2786] cgroup_apply_control_enable+0x8b9/0x12f0 [ 473.312010][ T2786] cgroup_apply_control+0x8e/0x7e0 [ 473.317217][ T2786] ? css_next_child+0x160/0x160 [ 473.322151][ T2786] ? stack_trace_save+0x12d/0x1f0 [ 473.327419][ T2786] ? io_schedule+0x120/0x120 [ 473.331985][ T2786] ? kernfs_fop_write_iter+0x15e/0x410 [ 473.337425][ T2786] ? __kasan_check_write+0x14/0x20 [ 473.342517][ T2786] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 473.347790][ T2786] cgroup_subtree_control_write+0xd19/0x1310 [ 473.353854][ T2786] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 473.359809][ T2786] ? __kasan_check_write+0x14/0x20 [ 473.365067][ T2786] ? _copy_from_iter+0x3fb/0xd60 [ 473.370027][ T2786] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 473.376239][ T2786] cgroup_file_write+0x28e/0x590 [ 473.381320][ T2786] ? cgroup_seqfile_stop+0xc0/0xc0 [ 473.386647][ T2786] ? mutex_trylock+0x180/0x180 [ 473.391502][ T2786] ? __kasan_check_write+0x14/0x20 [ 473.396717][ T2786] kernfs_fop_write_iter+0x2d0/0x410 [ 473.401996][ T2786] ? cgroup_seqfile_stop+0xc0/0xc0 [ 473.407353][ T2786] vfs_write+0xc4a/0xf80 [ 473.411611][ T2786] ? slab_free_freelist_hook+0xcc/0x1a0 [ 473.417181][ T2786] ? kernel_write+0x420/0x420 [ 473.421936][ T2786] ? do_sys_openat2+0x397/0x470 [ 473.426769][ T2786] ? __kasan_check_read+0x11/0x20 [ 473.431776][ T2786] ? __fdget_pos+0x27e/0x310 [ 473.436756][ T2786] ksys_write+0x198/0x2c0 [ 473.441424][ T2786] ? __ia32_sys_read+0x90/0x90 [ 473.446198][ T2786] ? debug_smp_processor_id+0x17/0x20 [ 473.451552][ T2786] __x64_sys_write+0x7b/0x90 [ 473.456216][ T2786] do_syscall_64+0x34/0x70 [ 473.460609][ T2786] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 473.466477][ T2786] RIP: 0033:0x7f48883727a9 [ 473.470885][ T2786] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 473.492202][ T2786] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 473.501061][ T2786] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 473.509119][ T2786] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 473.517344][ T2786] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 473.525572][ T2786] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 473.533547][ T2786] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000014 [ 473.541846][ T2786] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 473.587228][ T2782] FAULT_INJECTION: forcing a failure. [ 473.587228][ T2782] name failslab, interval 1, probability 0, space 0, times 0 [ 473.599957][ T2782] CPU: 1 PID: 2782 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 473.610594][ T2782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 473.620646][ T2782] Call Trace: [ 473.623965][ T2782] dump_stack_lvl+0x1e2/0x24b [ 473.628718][ T2782] ? panic+0x7d7/0x7d7 [ 473.632882][ T2782] ? bfq_pos_tree_add_move+0x43e/0x43e [ 473.638342][ T2782] ? selinux_kernfs_init_security+0x1a8/0x760 [ 473.644398][ T2782] dump_stack+0x15/0x17 [ 473.648535][ T2782] should_fail+0x3c0/0x510 [ 473.652929][ T2782] __should_failslab+0x9f/0xe0 [ 473.657667][ T2782] should_failslab+0x9/0x20 [ 473.662147][ T2782] kmem_cache_alloc+0x3f/0x300 [ 473.666996][ T2782] ? __kernfs_new_node+0xdb/0x6e0 [ 473.671994][ T2782] __kernfs_new_node+0xdb/0x6e0 [ 473.676855][ T2782] ? is_module_text_address+0xe1/0x140 [ 473.682292][ T2782] ? kernfs_new_node+0x170/0x170 [ 473.687293][ T2782] ? ptr_to_hashval+0x60/0x60 [ 473.691947][ T2782] ? arch_stack_walk+0xf8/0x140 [ 473.696777][ T2782] ? snprintf+0xd6/0x120 [ 473.701084][ T2782] kernfs_new_node+0x97/0x170 [ 473.705844][ T2782] __kernfs_create_file+0x4a/0x270 [ 473.711022][ T2782] cgroup_addrm_files+0xab8/0xfe0 [ 473.716025][ T2782] ? ____kasan_kmalloc+0xdc/0x110 [ 473.721038][ T2782] ? __kasan_kmalloc+0x9/0x10 [ 473.725711][ T2782] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 473.731257][ T2782] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 473.737576][ T2782] ? delete_node+0x759/0x7b0 [ 473.742159][ T2782] ? __kasan_check_read+0x11/0x20 [ 473.747271][ T2782] ? delete_node+0x759/0x7b0 [ 473.751839][ T2782] ? __kasan_check_write+0x14/0x20 [ 473.756940][ T2782] ? idr_replace+0x1c4/0x230 [ 473.761953][ T2782] ? idr_get_next+0x4b0/0x4b0 [ 473.766623][ T2782] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 473.771637][ T2782] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 473.776847][ T2782] css_populate_dir+0x137/0x370 [ 473.781681][ T2782] cgroup_apply_control_enable+0x8b9/0x12f0 [ 473.787580][ T2782] cgroup_apply_control+0x8e/0x7e0 [ 473.792776][ T2782] ? css_next_child+0x160/0x160 [ 473.797611][ T2782] ? stack_trace_save+0x12d/0x1f0 [ 473.802609][ T2782] ? io_schedule+0x120/0x120 [ 473.807177][ T2782] ? kernfs_fop_write_iter+0x15e/0x410 [ 473.812614][ T2782] ? __kasan_check_write+0x14/0x20 [ 473.817705][ T2782] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 473.823117][ T2782] cgroup_subtree_control_write+0xd19/0x1310 [ 473.829445][ T2782] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 473.835400][ T2782] ? __kasan_check_write+0x14/0x20 [ 473.840490][ T2782] ? _copy_from_iter+0x3fb/0xd60 [ 473.845512][ T2782] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 473.851497][ T2782] cgroup_file_write+0x28e/0x590 [ 473.856437][ T2782] ? cgroup_seqfile_stop+0xc0/0xc0 [ 473.861523][ T2782] ? mutex_trylock+0x180/0x180 [ 473.866265][ T2782] ? __kasan_check_write+0x14/0x20 [ 473.871354][ T2782] kernfs_fop_write_iter+0x2d0/0x410 [ 473.876708][ T2782] ? cgroup_seqfile_stop+0xc0/0xc0 [ 473.881805][ T2782] vfs_write+0xc4a/0xf80 [ 473.886027][ T2782] ? slab_free_freelist_hook+0xcc/0x1a0 [ 473.891555][ T2782] ? kernel_write+0x420/0x420 [ 473.896321][ T2782] ? do_sys_openat2+0x397/0x470 [ 473.901148][ T2782] ? __kasan_check_read+0x11/0x20 [ 473.906268][ T2782] ? __fdget_pos+0x27e/0x310 [ 473.910837][ T2782] ksys_write+0x198/0x2c0 [ 473.915157][ T2782] ? __ia32_sys_read+0x90/0x90 [ 473.919988][ T2782] ? debug_smp_processor_id+0x17/0x20 [ 473.925421][ T2782] __x64_sys_write+0x7b/0x90 [ 473.929995][ T2782] do_syscall_64+0x34/0x70 [ 473.934400][ T2782] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 473.940283][ T2782] RIP: 0033:0x7f48883727a9 [ 473.944675][ T2782] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 473.964261][ T2782] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 473.972654][ T2782] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 473.980642][ T2782] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 473.988778][ T2782] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 473.996823][ T2782] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 474.004887][ T2782] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000023 [ 474.013236][ T2782] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 474.047332][ T2796] FAULT_INJECTION: forcing a failure. [ 474.047332][ T2796] name failslab, interval 1, probability 0, space 0, times 0 [ 474.060398][ T2796] CPU: 1 PID: 2796 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 474.070819][ T2796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 474.081065][ T2796] Call Trace: [ 474.084354][ T2796] dump_stack_lvl+0x1e2/0x24b [ 474.089025][ T2796] ? bfq_pos_tree_add_move+0x43e/0x43e [ 474.094638][ T2796] ? selinux_kernfs_init_security+0x1a8/0x760 [ 474.100972][ T2796] dump_stack+0x15/0x17 [ 474.105215][ T2796] should_fail+0x3c0/0x510 [ 474.110237][ T2796] ? __kernfs_new_node+0x99/0x6e0 [ 474.115254][ T2796] __should_failslab+0x9f/0xe0 [ 474.120022][ T2796] should_failslab+0x9/0x20 [ 474.124610][ T2796] __kmalloc_track_caller+0x5f/0x350 [ 474.129969][ T2796] kstrdup_const+0x55/0x90 [ 474.134504][ T2796] __kernfs_new_node+0x99/0x6e0 [ 474.139424][ T2796] ? is_module_text_address+0xe1/0x140 [ 474.145216][ T2796] ? kernfs_new_node+0x170/0x170 [ 474.150182][ T2796] ? ptr_to_hashval+0x60/0x60 [ 474.154876][ T2796] ? mutex_lock+0xb2/0x1e0 [ 474.159356][ T2796] ? snprintf+0xd6/0x120 [ 474.163675][ T2796] ? mutex_unlock+0x29/0xf0 [ 474.168338][ T2796] kernfs_new_node+0x97/0x170 [ 474.173120][ T2796] __kernfs_create_file+0x4a/0x270 [ 474.178313][ T2796] cgroup_addrm_files+0xab8/0xfe0 [ 474.183409][ T2796] ? ____kasan_kmalloc+0xdc/0x110 [ 474.188507][ T2796] ? __kasan_kmalloc+0x9/0x10 [ 474.193535][ T2796] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 474.199158][ T2796] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 474.205389][ T2796] ? delete_node+0x759/0x7b0 [ 474.209973][ T2796] ? __kasan_check_read+0x11/0x20 [ 474.215057][ T2796] ? idr_replace+0x1c4/0x230 [ 474.219843][ T2796] ? idr_get_next+0x4b0/0x4b0 [ 474.224544][ T2796] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 474.229574][ T2796] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 474.234818][ T2796] css_populate_dir+0x137/0x370 [ 474.239757][ T2796] cgroup_apply_control_enable+0x8b9/0x12f0 [ 474.246076][ T2796] cgroup_apply_control+0x8e/0x7e0 [ 474.251451][ T2796] ? css_next_child+0x160/0x160 [ 474.256315][ T2796] ? stack_trace_save+0x12d/0x1f0 [ 474.261328][ T2796] ? io_schedule+0x120/0x120 [ 474.266288][ T2796] ? kernfs_fop_write_iter+0x15e/0x410 [ 474.271741][ T2796] ? __kasan_check_write+0x14/0x20 [ 474.276848][ T2796] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 474.282468][ T2796] cgroup_subtree_control_write+0xd19/0x1310 [ 474.288546][ T2796] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 474.294683][ T2796] ? __kasan_check_write+0x14/0x20 [ 474.299776][ T2796] ? _copy_from_iter+0x3fb/0xd60 [ 474.304710][ T2796] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 474.310672][ T2796] cgroup_file_write+0x28e/0x590 [ 474.315628][ T2796] ? cgroup_seqfile_stop+0xc0/0xc0 [ 474.320732][ T2796] ? mutex_trylock+0x180/0x180 [ 474.325747][ T2796] ? __kasan_check_write+0x14/0x20 [ 474.331365][ T2796] kernfs_fop_write_iter+0x2d0/0x410 [ 474.336764][ T2796] ? cgroup_seqfile_stop+0xc0/0xc0 [ 474.341981][ T2796] vfs_write+0xc4a/0xf80 [ 474.346239][ T2796] ? slab_free_freelist_hook+0xcc/0x1a0 [ 474.351978][ T2796] ? kernel_write+0x420/0x420 [ 474.356737][ T2796] ? do_sys_openat2+0x397/0x470 [ 474.361569][ T2796] ? __kasan_check_read+0x11/0x20 [ 474.366572][ T2796] ? __fdget_pos+0x27e/0x310 [ 474.371150][ T2796] ksys_write+0x198/0x2c0 [ 474.375542][ T2796] ? __kasan_check_write+0x14/0x20 [ 474.380671][ T2796] ? __ia32_sys_read+0x90/0x90 [ 474.385416][ T2796] ? debug_smp_processor_id+0x17/0x20 [ 474.390774][ T2796] __x64_sys_write+0x7b/0x90 [ 474.395355][ T2796] do_syscall_64+0x34/0x70 [ 474.399769][ T2796] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 474.405654][ T2796] RIP: 0033:0x7f48883727a9 [ 474.410102][ T2796] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 474.430093][ T2796] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 474.438767][ T2796] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 474.446742][ T2796] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 474.454822][ T2796] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 474.462970][ T2796] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 474.471563][ T2796] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000024 [ 474.480445][ T2796] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 474.527205][ T2789] FAULT_INJECTION: forcing a failure. [ 474.527205][ T2789] name failslab, interval 1, probability 0, space 0, times 0 [ 474.539979][ T2789] CPU: 1 PID: 2789 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 474.550387][ T2789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 474.560523][ T2789] Call Trace: [ 474.563813][ T2789] dump_stack_lvl+0x1e2/0x24b [ 474.568477][ T2789] ? bfq_pos_tree_add_move+0x43e/0x43e [ 474.574007][ T2789] ? selinux_kernfs_init_security+0x1a8/0x760 [ 474.580056][ T2789] dump_stack+0x15/0x17 [ 474.585063][ T2789] should_fail+0x3c0/0x510 [ 474.589551][ T2789] ? __kernfs_new_node+0x99/0x6e0 [ 474.594614][ T2789] __should_failslab+0x9f/0xe0 [ 474.599363][ T2789] should_failslab+0x9/0x20 [ 474.603868][ T2789] __kmalloc_track_caller+0x5f/0x350 [ 474.609237][ T2789] kstrdup_const+0x55/0x90 [ 474.613636][ T2789] __kernfs_new_node+0x99/0x6e0 [ 474.618491][ T2789] ? is_module_text_address+0xe1/0x140 [ 474.623929][ T2789] ? kernfs_new_node+0x170/0x170 [ 474.628847][ T2789] ? ptr_to_hashval+0x60/0x60 [ 474.633778][ T2789] ? mutex_lock+0xb2/0x1e0 [ 474.638264][ T2789] ? snprintf+0xd6/0x120 [ 474.642482][ T2789] ? mutex_unlock+0x29/0xf0 [ 474.646967][ T2789] kernfs_new_node+0x97/0x170 [ 474.651709][ T2789] __kernfs_create_file+0x4a/0x270 [ 474.656799][ T2789] cgroup_addrm_files+0xab8/0xfe0 [ 474.661824][ T2789] ? ____kasan_kmalloc+0xdc/0x110 [ 474.666827][ T2789] ? __kasan_kmalloc+0x9/0x10 [ 474.671483][ T2789] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 474.677181][ T2789] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 474.683448][ T2789] ? delete_node+0x759/0x7b0 [ 474.688032][ T2789] ? __kasan_check_read+0x11/0x20 [ 474.693052][ T2789] ? idr_replace+0x1c4/0x230 [ 474.697667][ T2789] ? idr_get_next+0x4b0/0x4b0 [ 474.702358][ T2789] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 474.707368][ T2789] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 474.712811][ T2789] css_populate_dir+0x137/0x370 [ 474.717705][ T2789] cgroup_apply_control_enable+0x8b9/0x12f0 [ 474.723594][ T2789] cgroup_apply_control+0x8e/0x7e0 [ 474.728963][ T2789] ? css_next_child+0x160/0x160 [ 474.733811][ T2789] ? stack_trace_save+0x12d/0x1f0 [ 474.738828][ T2789] ? io_schedule+0x120/0x120 [ 474.743426][ T2789] ? kernfs_fop_write_iter+0x15e/0x410 [ 474.749029][ T2789] ? __kasan_check_write+0x14/0x20 [ 474.754252][ T2789] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 474.759527][ T2789] cgroup_subtree_control_write+0xd19/0x1310 [ 474.765498][ T2789] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 474.771584][ T2789] ? __kasan_check_write+0x14/0x20 [ 474.776815][ T2789] ? _copy_from_iter+0x3fb/0xd60 [ 474.781909][ T2789] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 474.787869][ T2789] cgroup_file_write+0x28e/0x590 [ 474.792941][ T2789] ? cgroup_seqfile_stop+0xc0/0xc0 [ 474.798151][ T2789] ? mutex_trylock+0x180/0x180 [ 474.803158][ T2789] ? __kasan_check_write+0x14/0x20 [ 474.808253][ T2789] kernfs_fop_write_iter+0x2d0/0x410 [ 474.813534][ T2789] ? cgroup_seqfile_stop+0xc0/0xc0 [ 474.818727][ T2789] vfs_write+0xc4a/0xf80 [ 474.822958][ T2789] ? slab_free_freelist_hook+0xcc/0x1a0 [ 474.828485][ T2789] ? kernel_write+0x420/0x420 [ 474.833140][ T2789] ? do_sys_openat2+0x397/0x470 [ 474.837971][ T2789] ? __kasan_check_read+0x11/0x20 [ 474.842976][ T2789] ? __fdget_pos+0x27e/0x310 [ 474.847553][ T2789] ksys_write+0x198/0x2c0 [ 474.851971][ T2789] ? __ia32_sys_read+0x90/0x90 [ 474.856726][ T2789] ? debug_smp_processor_id+0x17/0x20 [ 474.862194][ T2789] __x64_sys_write+0x7b/0x90 [ 474.866826][ T2789] do_syscall_64+0x34/0x70 [ 474.871228][ T2789] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 474.877122][ T2789] RIP: 0033:0x7f48883727a9 [ 474.881524][ T2789] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 474.901118][ T2789] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 474.909524][ T2789] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 474.917832][ T2789] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 474.925786][ T2789] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 474.933751][ T2789] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 474.941717][ T2789] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000018 [ 474.949881][ T2789] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 474.987404][ T2793] FAULT_INJECTION: forcing a failure. [ 474.987404][ T2793] name failslab, interval 1, probability 0, space 0, times 0 [ 475.000213][ T2793] CPU: 0 PID: 2793 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 475.010729][ T2793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 475.020771][ T2793] Call Trace: [ 475.024143][ T2793] dump_stack_lvl+0x1e2/0x24b [ 475.028818][ T2793] ? panic+0x7d7/0x7d7 [ 475.032989][ T2793] ? bfq_pos_tree_add_move+0x43e/0x43e [ 475.038562][ T2793] ? selinux_kernfs_init_security+0x1a8/0x760 [ 475.044725][ T2793] dump_stack+0x15/0x17 [ 475.048905][ T2793] should_fail+0x3c0/0x510 [ 475.053318][ T2793] __should_failslab+0x9f/0xe0 [ 475.058079][ T2793] should_failslab+0x9/0x20 [ 475.062637][ T2793] kmem_cache_alloc+0x3f/0x300 [ 475.067399][ T2793] ? __kernfs_new_node+0xdb/0x6e0 [ 475.072410][ T2793] __kernfs_new_node+0xdb/0x6e0 [ 475.077240][ T2793] ? is_module_text_address+0xe1/0x140 [ 475.082674][ T2793] ? kernfs_new_node+0x170/0x170 [ 475.087599][ T2793] ? ptr_to_hashval+0x60/0x60 [ 475.092257][ T2793] ? arch_stack_walk+0xf8/0x140 [ 475.097096][ T2793] ? snprintf+0xd6/0x120 [ 475.101327][ T2793] kernfs_new_node+0x97/0x170 [ 475.105991][ T2793] __kernfs_create_file+0x4a/0x270 [ 475.111098][ T2793] cgroup_addrm_files+0xab8/0xfe0 [ 475.116109][ T2793] ? ____kasan_kmalloc+0xdc/0x110 [ 475.121210][ T2793] ? __kasan_kmalloc+0x9/0x10 [ 475.125965][ T2793] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 475.131500][ T2793] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 475.137681][ T2793] ? delete_node+0x759/0x7b0 [ 475.142356][ T2793] ? __kasan_check_read+0x11/0x20 [ 475.147591][ T2793] ? delete_node+0x759/0x7b0 [ 475.152175][ T2793] ? __kasan_check_write+0x14/0x20 [ 475.157375][ T2793] ? idr_replace+0x1c4/0x230 [ 475.161949][ T2793] ? idr_get_next+0x4b0/0x4b0 [ 475.166959][ T2793] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 475.171992][ T2793] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 475.177177][ T2793] css_populate_dir+0x137/0x370 [ 475.182139][ T2793] cgroup_apply_control_enable+0x8b9/0x12f0 [ 475.188028][ T2793] cgroup_apply_control+0x8e/0x7e0 [ 475.193210][ T2793] ? css_next_child+0x160/0x160 [ 475.198068][ T2793] ? io_schedule+0x120/0x120 [ 475.202649][ T2793] ? kernfs_fop_write_iter+0x15e/0x410 [ 475.208119][ T2793] ? __kasan_check_write+0x14/0x20 [ 475.213289][ T2793] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 475.218580][ T2793] cgroup_subtree_control_write+0xd19/0x1310 [ 475.224551][ T2793] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 475.230545][ T2793] ? __kasan_check_write+0x14/0x20 [ 475.235660][ T2793] ? _copy_from_iter+0x3fb/0xd60 [ 475.240989][ T2793] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 475.246961][ T2793] cgroup_file_write+0x28e/0x590 [ 475.251884][ T2793] ? cgroup_seqfile_stop+0xc0/0xc0 [ 475.256973][ T2793] ? mutex_trylock+0x180/0x180 [ 475.261718][ T2793] ? __kasan_check_write+0x14/0x20 [ 475.266818][ T2793] kernfs_fop_write_iter+0x2d0/0x410 [ 475.272084][ T2793] ? cgroup_seqfile_stop+0xc0/0xc0 [ 475.277373][ T2793] vfs_write+0xc4a/0xf80 [ 475.281604][ T2793] ? kernel_write+0x420/0x420 [ 475.286269][ T2793] ? do_sys_openat2+0x397/0x470 [ 475.291099][ T2793] ? __kasan_check_read+0x11/0x20 [ 475.296114][ T2793] ? __fdget_pos+0x27e/0x310 [ 475.300812][ T2793] ksys_write+0x198/0x2c0 [ 475.305271][ T2793] ? __ia32_sys_read+0x90/0x90 [ 475.310049][ T2793] ? debug_smp_processor_id+0x17/0x20 [ 475.315504][ T2793] __x64_sys_write+0x7b/0x90 [ 475.320533][ T2793] do_syscall_64+0x34/0x70 [ 475.324985][ T2793] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 475.330862][ T2793] RIP: 0033:0x7f48883727a9 [ 475.335286][ T2793] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 475.355434][ T2793] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 475.364015][ T2793] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 475.372082][ T2793] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 475.380224][ T2793] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 475.388515][ T2793] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 475.396664][ T2793] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001a [ 475.405381][ T2793] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 475.447247][ T2794] FAULT_INJECTION: forcing a failure. [ 475.447247][ T2794] name failslab, interval 1, probability 0, space 0, times 0 [ 475.460307][ T2794] CPU: 1 PID: 2794 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 475.471404][ T2794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 475.482081][ T2794] Call Trace: [ 475.485467][ T2794] dump_stack_lvl+0x1e2/0x24b [ 475.490229][ T2794] ? bfq_pos_tree_add_move+0x43e/0x43e [ 475.495774][ T2794] ? selinux_kernfs_init_security+0x1a8/0x760 [ 475.501828][ T2794] dump_stack+0x15/0x17 [ 475.506055][ T2794] should_fail+0x3c0/0x510 [ 475.510547][ T2794] ? __kernfs_new_node+0x99/0x6e0 [ 475.515664][ T2794] __should_failslab+0x9f/0xe0 [ 475.520513][ T2794] should_failslab+0x9/0x20 [ 475.525179][ T2794] __kmalloc_track_caller+0x5f/0x350 [ 475.530556][ T2794] kstrdup_const+0x55/0x90 [ 475.535051][ T2794] __kernfs_new_node+0x99/0x6e0 [ 475.539890][ T2794] ? is_module_text_address+0xe1/0x140 [ 475.545344][ T2794] ? kernfs_new_node+0x170/0x170 [ 475.550644][ T2794] ? ptr_to_hashval+0x60/0x60 [ 475.555707][ T2794] ? mutex_lock+0xb2/0x1e0 [ 475.560243][ T2794] ? snprintf+0xd6/0x120 [ 475.564715][ T2794] ? mutex_unlock+0x29/0xf0 [ 475.569494][ T2794] kernfs_new_node+0x97/0x170 [ 475.574168][ T2794] __kernfs_create_file+0x4a/0x270 [ 475.579287][ T2794] cgroup_addrm_files+0xab8/0xfe0 [ 475.584314][ T2794] ? ____kasan_kmalloc+0xdc/0x110 [ 475.589517][ T2794] ? __kasan_kmalloc+0x9/0x10 [ 475.594189][ T2794] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 475.599740][ T2794] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 475.606146][ T2794] ? delete_node+0x759/0x7b0 [ 475.610770][ T2794] ? __kasan_check_read+0x11/0x20 [ 475.615804][ T2794] ? idr_replace+0x1c4/0x230 [ 475.620397][ T2794] ? idr_get_next+0x4b0/0x4b0 [ 475.625059][ T2794] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 475.630123][ T2794] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 475.635319][ T2794] css_populate_dir+0x137/0x370 [ 475.640183][ T2794] cgroup_apply_control_enable+0x8b9/0x12f0 [ 475.646213][ T2794] cgroup_apply_control+0x8e/0x7e0 [ 475.651331][ T2794] ? css_next_child+0x160/0x160 [ 475.656205][ T2794] ? stack_trace_save+0x12d/0x1f0 [ 475.661228][ T2794] ? io_schedule+0x120/0x120 [ 475.665810][ T2794] ? kernfs_fop_write_iter+0x15e/0x410 [ 475.671272][ T2794] ? __kasan_check_write+0x14/0x20 [ 475.676402][ T2794] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 475.681766][ T2794] cgroup_subtree_control_write+0xd19/0x1310 [ 475.687740][ T2794] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 475.693713][ T2794] ? __kasan_check_write+0x14/0x20 [ 475.698805][ T2794] ? _copy_from_iter+0x3fb/0xd60 [ 475.703727][ T2794] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 475.709727][ T2794] cgroup_file_write+0x28e/0x590 [ 475.714747][ T2794] ? cgroup_seqfile_stop+0xc0/0xc0 [ 475.719858][ T2794] ? mutex_trylock+0x180/0x180 [ 475.724607][ T2794] ? __kasan_check_write+0x14/0x20 [ 475.729720][ T2794] kernfs_fop_write_iter+0x2d0/0x410 [ 475.734992][ T2794] ? cgroup_seqfile_stop+0xc0/0xc0 [ 475.740269][ T2794] vfs_write+0xc4a/0xf80 [ 475.744513][ T2794] ? slab_free_freelist_hook+0xcc/0x1a0 [ 475.750044][ T2794] ? kernel_write+0x420/0x420 [ 475.754731][ T2794] ? do_sys_openat2+0x397/0x470 [ 475.759659][ T2794] ? __kasan_check_read+0x11/0x20 [ 475.764666][ T2794] ? __fdget_pos+0x27e/0x310 [ 475.769244][ T2794] ksys_write+0x198/0x2c0 [ 475.773621][ T2794] ? __ia32_sys_read+0x90/0x90 [ 475.778368][ T2794] ? debug_smp_processor_id+0x17/0x20 [ 475.783987][ T2794] __x64_sys_write+0x7b/0x90 [ 475.788556][ T2794] do_syscall_64+0x34/0x70 [ 475.792955][ T2794] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 475.798946][ T2794] RIP: 0033:0x7f48883727a9 [ 475.803364][ T2794] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 475.823040][ T2794] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 475.831720][ T2794] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 475.840026][ T2794] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 475.848002][ T2794] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 475.856054][ T2794] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 475.864024][ T2794] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000015 [ 475.872465][ T2794] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 475.907249][ T2800] FAULT_INJECTION: forcing a failure. [ 475.907249][ T2800] name failslab, interval 1, probability 0, space 0, times 0 [ 475.920357][ T2800] CPU: 1 PID: 2800 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 475.930769][ T2800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 475.941015][ T2800] Call Trace: [ 475.944297][ T2800] dump_stack_lvl+0x1e2/0x24b [ 475.948969][ T2800] ? bfq_pos_tree_add_move+0x43e/0x43e [ 475.954439][ T2800] ? selinux_kernfs_init_security+0x1a8/0x760 [ 475.960850][ T2800] dump_stack+0x15/0x17 [ 475.964987][ T2800] should_fail+0x3c0/0x510 [ 475.969396][ T2800] ? __kernfs_new_node+0x99/0x6e0 [ 475.974490][ T2800] __should_failslab+0x9f/0xe0 [ 475.979237][ T2800] should_failslab+0x9/0x20 [ 475.983720][ T2800] __kmalloc_track_caller+0x5f/0x350 [ 475.989057][ T2800] kstrdup_const+0x55/0x90 [ 475.993745][ T2800] __kernfs_new_node+0x99/0x6e0 [ 475.998618][ T2800] ? is_module_text_address+0xe1/0x140 [ 476.004092][ T2800] ? kernfs_new_node+0x170/0x170 [ 476.009018][ T2800] ? ptr_to_hashval+0x60/0x60 [ 476.013690][ T2800] ? arch_stack_walk+0xf8/0x140 [ 476.018713][ T2800] ? snprintf+0xd6/0x120 [ 476.023055][ T2800] kernfs_new_node+0x97/0x170 [ 476.027938][ T2800] __kernfs_create_file+0x4a/0x270 [ 476.033042][ T2800] cgroup_addrm_files+0xab8/0xfe0 [ 476.038052][ T2800] ? ____kasan_kmalloc+0xdc/0x110 [ 476.043056][ T2800] ? __kasan_kmalloc+0x9/0x10 [ 476.047722][ T2800] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 476.053352][ T2800] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 476.059503][ T2800] ? delete_node+0x759/0x7b0 [ 476.064317][ T2800] ? __kasan_check_read+0x11/0x20 [ 476.069620][ T2800] ? delete_node+0x759/0x7b0 [ 476.074198][ T2800] ? __kasan_check_write+0x14/0x20 [ 476.079306][ T2800] ? idr_replace+0x1c4/0x230 [ 476.084657][ T2800] ? idr_get_next+0x4b0/0x4b0 [ 476.089348][ T2800] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 476.094353][ T2800] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 476.099629][ T2800] css_populate_dir+0x137/0x370 [ 476.104610][ T2800] cgroup_apply_control_enable+0x8b9/0x12f0 [ 476.110612][ T2800] cgroup_apply_control+0x8e/0x7e0 [ 476.115751][ T2800] ? css_next_child+0x160/0x160 [ 476.120611][ T2800] ? stack_trace_save+0x12d/0x1f0 [ 476.125632][ T2800] ? io_schedule+0x120/0x120 [ 476.130266][ T2800] ? kernfs_fop_write_iter+0x15e/0x410 [ 476.135728][ T2800] ? __kasan_check_write+0x14/0x20 [ 476.140845][ T2800] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 476.146325][ T2800] cgroup_subtree_control_write+0xd19/0x1310 [ 476.152431][ T2800] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 476.158538][ T2800] ? __kasan_check_write+0x14/0x20 [ 476.163744][ T2800] ? _copy_from_iter+0x3fb/0xd60 [ 476.168731][ T2800] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 476.174709][ T2800] cgroup_file_write+0x28e/0x590 [ 476.179630][ T2800] ? cgroup_seqfile_stop+0xc0/0xc0 [ 476.184724][ T2800] ? mutex_trylock+0x180/0x180 [ 476.189468][ T2800] ? __kasan_check_write+0x14/0x20 [ 476.194660][ T2800] kernfs_fop_write_iter+0x2d0/0x410 [ 476.199955][ T2800] ? cgroup_seqfile_stop+0xc0/0xc0 [ 476.205168][ T2800] vfs_write+0xc4a/0xf80 [ 476.209648][ T2800] ? slab_free_freelist_hook+0xcc/0x1a0 [ 476.215190][ T2800] ? kernel_write+0x420/0x420 [ 476.219878][ T2800] ? do_sys_openat2+0x397/0x470 [ 476.224721][ T2800] ? __kasan_check_read+0x11/0x20 [ 476.229939][ T2800] ? __fdget_pos+0x27e/0x310 [ 476.234533][ T2800] ksys_write+0x198/0x2c0 [ 476.238963][ T2800] ? __ia32_sys_read+0x90/0x90 [ 476.243707][ T2800] ? debug_smp_processor_id+0x17/0x20 [ 476.249292][ T2800] __x64_sys_write+0x7b/0x90 [ 476.253890][ T2800] do_syscall_64+0x34/0x70 [ 476.258307][ T2800] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 476.264344][ T2800] RIP: 0033:0x7f48883727a9 [ 476.268750][ T2800] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 476.288535][ T2800] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 476.296948][ T2800] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 476.304920][ T2800] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 476.312970][ T2800] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 476.320924][ T2800] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 476.328878][ T2800] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000016 [ 476.338037][ T2800] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 476.387163][ T2797] FAULT_INJECTION: forcing a failure. [ 476.387163][ T2797] name failslab, interval 1, probability 0, space 0, times 0 [ 476.399901][ T2797] CPU: 1 PID: 2797 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 476.410319][ T2797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 476.425222][ T2797] Call Trace: [ 476.428502][ T2797] dump_stack_lvl+0x1e2/0x24b [ 476.433157][ T2797] ? bfq_pos_tree_add_move+0x43e/0x43e [ 476.438810][ T2797] ? selinux_kernfs_init_security+0x1a8/0x760 [ 476.444959][ T2797] dump_stack+0x15/0x17 [ 476.449107][ T2797] should_fail+0x3c0/0x510 [ 476.453567][ T2797] ? __kernfs_new_node+0x99/0x6e0 [ 476.458660][ T2797] __should_failslab+0x9f/0xe0 [ 476.463407][ T2797] should_failslab+0x9/0x20 [ 476.467894][ T2797] __kmalloc_track_caller+0x5f/0x350 [ 476.473354][ T2797] kstrdup_const+0x55/0x90 [ 476.477841][ T2797] __kernfs_new_node+0x99/0x6e0 [ 476.482686][ T2797] ? is_module_text_address+0xe1/0x140 [ 476.488133][ T2797] ? kernfs_new_node+0x170/0x170 [ 476.493062][ T2797] ? ptr_to_hashval+0x60/0x60 [ 476.497720][ T2797] ? mutex_lock+0xb2/0x1e0 [ 476.502117][ T2797] ? snprintf+0xd6/0x120 [ 476.506467][ T2797] ? mutex_unlock+0x29/0xf0 [ 476.511195][ T2797] kernfs_new_node+0x97/0x170 [ 476.516053][ T2797] __kernfs_create_file+0x4a/0x270 [ 476.521167][ T2797] cgroup_addrm_files+0xab8/0xfe0 [ 476.526211][ T2797] ? ____kasan_kmalloc+0xdc/0x110 [ 476.531346][ T2797] ? __kasan_kmalloc+0x9/0x10 [ 476.536124][ T2797] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 476.541862][ T2797] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 476.548042][ T2797] ? delete_node+0x759/0x7b0 [ 476.552716][ T2797] ? __kasan_check_read+0x11/0x20 [ 476.557919][ T2797] ? idr_replace+0x1c4/0x230 [ 476.562512][ T2797] ? idr_get_next+0x4b0/0x4b0 [ 476.567440][ T2797] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 476.572479][ T2797] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 476.577790][ T2797] css_populate_dir+0x137/0x370 [ 476.582910][ T2797] cgroup_apply_control_enable+0x8b9/0x12f0 [ 476.588800][ T2797] cgroup_apply_control+0x8e/0x7e0 [ 476.593924][ T2797] ? css_next_child+0x160/0x160 [ 476.598877][ T2797] ? stack_trace_save+0x12d/0x1f0 [ 476.603990][ T2797] ? io_schedule+0x120/0x120 [ 476.608764][ T2797] ? kernfs_fop_write_iter+0x15e/0x410 [ 476.614252][ T2797] ? __kasan_check_write+0x14/0x20 [ 476.619486][ T2797] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 476.624885][ T2797] cgroup_subtree_control_write+0xd19/0x1310 [ 476.631340][ T2797] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 476.638011][ T2797] ? __kasan_check_write+0x14/0x20 [ 476.643506][ T2797] ? _copy_from_iter+0x3fb/0xd60 [ 476.648590][ T2797] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 476.655215][ T2797] cgroup_file_write+0x28e/0x590 [ 476.660159][ T2797] ? cgroup_seqfile_stop+0xc0/0xc0 [ 476.665352][ T2797] ? mutex_trylock+0x180/0x180 [ 476.670127][ T2797] ? __kasan_check_write+0x14/0x20 [ 476.675288][ T2797] kernfs_fop_write_iter+0x2d0/0x410 [ 476.681276][ T2797] ? cgroup_seqfile_stop+0xc0/0xc0 [ 476.686475][ T2797] vfs_write+0xc4a/0xf80 [ 476.691080][ T2797] ? slab_free_freelist_hook+0xcc/0x1a0 [ 476.696626][ T2797] ? kernel_write+0x420/0x420 [ 476.701312][ T2797] ? do_sys_openat2+0x397/0x470 [ 476.706169][ T2797] ? __kasan_check_read+0x11/0x20 [ 476.711227][ T2797] ? __fdget_pos+0x27e/0x310 [ 476.716269][ T2797] ksys_write+0x198/0x2c0 [ 476.720893][ T2797] ? __kasan_check_write+0x14/0x20 [ 476.726191][ T2797] ? __ia32_sys_read+0x90/0x90 [ 476.730968][ T2797] ? debug_smp_processor_id+0x17/0x20 [ 476.736451][ T2797] __x64_sys_write+0x7b/0x90 [ 476.741028][ T2797] do_syscall_64+0x34/0x70 [ 476.745559][ T2797] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 476.751622][ T2797] RIP: 0033:0x7f48883727a9 [ 476.756066][ T2797] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 476.778188][ T2797] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 476.786598][ T2797] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 476.794588][ T2797] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 476.802601][ T2797] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 476.810677][ T2797] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 476.818653][ T2797] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000025 [ 476.827252][ T2797] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 476.867026][ T2792] FAULT_INJECTION: forcing a failure. [ 476.867026][ T2792] name failslab, interval 1, probability 0, space 0, times 0 [ 476.879976][ T2792] CPU: 0 PID: 2792 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 476.890391][ T2792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 476.900801][ T2792] Call Trace: [ 476.904120][ T2792] dump_stack_lvl+0x1e2/0x24b [ 476.908795][ T2792] ? bfq_pos_tree_add_move+0x43e/0x43e [ 476.914261][ T2792] ? selinux_kernfs_init_security+0x1a8/0x760 [ 476.920324][ T2792] dump_stack+0x15/0x17 [ 476.924485][ T2792] should_fail+0x3c0/0x510 [ 476.928984][ T2792] ? __kernfs_new_node+0x99/0x6e0 [ 476.933990][ T2792] __should_failslab+0x9f/0xe0 [ 476.938824][ T2792] should_failslab+0x9/0x20 [ 476.943307][ T2792] __kmalloc_track_caller+0x5f/0x350 [ 476.948628][ T2792] kstrdup_const+0x55/0x90 [ 476.953050][ T2792] __kernfs_new_node+0x99/0x6e0 [ 476.957896][ T2792] ? is_module_text_address+0xe1/0x140 [ 476.963352][ T2792] ? kernfs_new_node+0x170/0x170 [ 476.968371][ T2792] ? ptr_to_hashval+0x60/0x60 [ 476.973031][ T2792] ? mutex_lock+0xb2/0x1e0 [ 476.977512][ T2792] ? snprintf+0xd6/0x120 [ 476.981734][ T2792] ? mutex_unlock+0x29/0xf0 [ 476.986223][ T2792] kernfs_new_node+0x97/0x170 [ 476.990879][ T2792] __kernfs_create_file+0x4a/0x270 [ 476.995969][ T2792] cgroup_addrm_files+0xab8/0xfe0 [ 477.000972][ T2792] ? ____kasan_kmalloc+0xdc/0x110 [ 477.005971][ T2792] ? __kasan_kmalloc+0x9/0x10 [ 477.010720][ T2792] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 477.016354][ T2792] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 477.022943][ T2792] ? delete_node+0x759/0x7b0 [ 477.027519][ T2792] ? __kasan_check_read+0x11/0x20 [ 477.032628][ T2792] ? idr_replace+0x1c4/0x230 [ 477.037557][ T2792] ? idr_get_next+0x4b0/0x4b0 [ 477.042607][ T2792] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 477.047635][ T2792] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 477.052830][ T2792] css_populate_dir+0x137/0x370 [ 477.057845][ T2792] cgroup_apply_control_enable+0x8b9/0x12f0 [ 477.063734][ T2792] cgroup_apply_control+0x8e/0x7e0 [ 477.068844][ T2792] ? css_next_child+0x160/0x160 [ 477.074072][ T2792] ? stack_trace_save+0x12d/0x1f0 [ 477.079108][ T2792] ? io_schedule+0x120/0x120 [ 477.083715][ T2792] ? kernfs_fop_write_iter+0x15e/0x410 [ 477.089250][ T2792] ? __kasan_check_write+0x14/0x20 [ 477.094371][ T2792] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 477.099936][ T2792] cgroup_subtree_control_write+0xd19/0x1310 [ 477.106151][ T2792] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 477.112284][ T2792] ? __kasan_check_write+0x14/0x20 [ 477.117633][ T2792] ? _copy_from_iter+0x3fb/0xd60 [ 477.122666][ T2792] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 477.128644][ T2792] cgroup_file_write+0x28e/0x590 [ 477.133817][ T2792] ? cgroup_seqfile_stop+0xc0/0xc0 [ 477.138932][ T2792] ? mutex_trylock+0x180/0x180 [ 477.143683][ T2792] ? __kasan_check_write+0x14/0x20 [ 477.148846][ T2792] kernfs_fop_write_iter+0x2d0/0x410 [ 477.154141][ T2792] ? cgroup_seqfile_stop+0xc0/0xc0 [ 477.159255][ T2792] vfs_write+0xc4a/0xf80 [ 477.163488][ T2792] ? slab_free_freelist_hook+0xcc/0x1a0 [ 477.169053][ T2792] ? kernel_write+0x420/0x420 [ 477.174245][ T2792] ? do_sys_openat2+0x397/0x470 [ 477.179082][ T2792] ? __kasan_check_read+0x11/0x20 [ 477.184172][ T2792] ? __fdget_pos+0x27e/0x310 [ 477.188771][ T2792] ksys_write+0x198/0x2c0 [ 477.194684][ T2792] ? __ia32_sys_read+0x90/0x90 [ 477.199633][ T2792] ? debug_smp_processor_id+0x17/0x20 [ 477.205160][ T2792] __x64_sys_write+0x7b/0x90 [ 477.209941][ T2792] do_syscall_64+0x34/0x70 [ 477.214355][ T2792] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 477.220248][ T2792] RIP: 0033:0x7f48883727a9 [ 477.224855][ T2792] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 477.245835][ T2792] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 477.254590][ T2792] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 477.263162][ T2792] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 477.272260][ T2792] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 477.280237][ T2792] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 477.288306][ T2792] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001b [ 477.297075][ T2792] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 477.317113][ T2801] FAULT_INJECTION: forcing a failure. [ 477.317113][ T2801] name failslab, interval 1, probability 0, space 0, times 0 [ 477.330312][ T2801] CPU: 0 PID: 2801 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 477.340976][ T2801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 477.352466][ T2801] Call Trace: [ 477.355803][ T2801] dump_stack_lvl+0x1e2/0x24b [ 477.362348][ T2801] ? bfq_pos_tree_add_move+0x43e/0x43e [ 477.367817][ T2801] ? selinux_kernfs_init_security+0x1a8/0x760 [ 477.374202][ T2801] dump_stack+0x15/0x17 [ 477.378454][ T2801] should_fail+0x3c0/0x510 [ 477.382858][ T2801] ? __kernfs_new_node+0x99/0x6e0 [ 477.388083][ T2801] __should_failslab+0x9f/0xe0 [ 477.393044][ T2801] should_failslab+0x9/0x20 [ 477.397541][ T2801] __kmalloc_track_caller+0x5f/0x350 [ 477.402911][ T2801] kstrdup_const+0x55/0x90 [ 477.407576][ T2801] __kernfs_new_node+0x99/0x6e0 [ 477.412453][ T2801] ? is_module_text_address+0xe1/0x140 [ 477.418055][ T2801] ? kernfs_new_node+0x170/0x170 [ 477.423004][ T2801] ? ptr_to_hashval+0x60/0x60 [ 477.427719][ T2801] ? mutex_lock+0xb2/0x1e0 [ 477.432148][ T2801] ? snprintf+0xd6/0x120 [ 477.436413][ T2801] ? mutex_unlock+0x29/0xf0 [ 477.441094][ T2801] kernfs_new_node+0x97/0x170 [ 477.445784][ T2801] __kernfs_create_file+0x4a/0x270 [ 477.450919][ T2801] cgroup_addrm_files+0xab8/0xfe0 [ 477.456200][ T2801] ? ____kasan_kmalloc+0xdc/0x110 [ 477.461454][ T2801] ? __kasan_kmalloc+0x9/0x10 [ 477.466257][ T2801] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 477.472014][ T2801] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 477.478553][ T2801] ? delete_node+0x759/0x7b0 [ 477.483568][ T2801] ? __kasan_check_read+0x11/0x20 [ 477.488919][ T2801] ? idr_replace+0x1c4/0x230 [ 477.493557][ T2801] ? idr_get_next+0x4b0/0x4b0 [ 477.498229][ T2801] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 477.503258][ T2801] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 477.508716][ T2801] css_populate_dir+0x137/0x370 [ 477.513830][ T2801] cgroup_apply_control_enable+0x8b9/0x12f0 [ 477.520094][ T2801] cgroup_apply_control+0x8e/0x7e0 [ 477.525305][ T2801] ? css_next_child+0x160/0x160 [ 477.530369][ T2801] ? io_schedule+0x120/0x120 [ 477.535134][ T2801] ? kernfs_fop_write_iter+0x15e/0x410 [ 477.540766][ T2801] ? __kasan_check_write+0x14/0x20 [ 477.545964][ T2801] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 477.551984][ T2801] cgroup_subtree_control_write+0xd19/0x1310 [ 477.558648][ T2801] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 477.565217][ T2801] ? __kasan_check_write+0x14/0x20 [ 477.570471][ T2801] ? _copy_from_iter+0x3fb/0xd60 [ 477.575750][ T2801] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 477.581824][ T2801] cgroup_file_write+0x28e/0x590 [ 477.586781][ T2801] ? cgroup_seqfile_stop+0xc0/0xc0 [ 477.591973][ T2801] ? mutex_trylock+0x180/0x180 [ 477.596729][ T2801] ? __kasan_check_write+0x14/0x20 [ 477.601825][ T2801] kernfs_fop_write_iter+0x2d0/0x410 [ 477.607096][ T2801] ? cgroup_seqfile_stop+0xc0/0xc0 [ 477.612290][ T2801] vfs_write+0xc4a/0xf80 [ 477.616605][ T2801] ? kernel_write+0x420/0x420 [ 477.621269][ T2801] ? do_sys_openat2+0x397/0x470 [ 477.626118][ T2801] ? __kasan_check_read+0x11/0x20 [ 477.631146][ T2801] ? __fdget_pos+0x27e/0x310 [ 477.635729][ T2801] ksys_write+0x198/0x2c0 [ 477.640062][ T2801] ? __ia32_sys_read+0x90/0x90 [ 477.644842][ T2801] ? debug_smp_processor_id+0x17/0x20 [ 477.650235][ T2801] __x64_sys_write+0x7b/0x90 [ 477.654823][ T2801] do_syscall_64+0x34/0x70 [ 477.659382][ T2801] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 477.665271][ T2801] RIP: 0033:0x7f48883727a9 [ 477.669678][ T2801] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 477.689633][ T2801] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 477.698168][ T2801] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 477.706345][ T2801] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 477.714562][ T2801] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 477.722560][ T2801] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 477.730541][ T2801] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000017 [ 477.738761][ T2801] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 477.777280][ T2802] FAULT_INJECTION: forcing a failure. [ 477.777280][ T2802] name failslab, interval 1, probability 0, space 0, times 0 [ 477.789951][ T2802] CPU: 1 PID: 2802 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 477.800472][ T2802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 477.810648][ T2802] Call Trace: [ 477.813963][ T2802] dump_stack_lvl+0x1e2/0x24b [ 477.818637][ T2802] ? panic+0x7d7/0x7d7 [ 477.822722][ T2802] ? bfq_pos_tree_add_move+0x43e/0x43e [ 477.828278][ T2802] ? selinux_kernfs_init_security+0x1a8/0x760 [ 477.835131][ T2802] dump_stack+0x15/0x17 [ 477.839361][ T2802] should_fail+0x3c0/0x510 [ 477.843758][ T2802] __should_failslab+0x9f/0xe0 [ 477.848506][ T2802] should_failslab+0x9/0x20 [ 477.852989][ T2802] kmem_cache_alloc+0x3f/0x300 [ 477.857727][ T2802] ? __kernfs_new_node+0xdb/0x6e0 [ 477.862730][ T2802] __kernfs_new_node+0xdb/0x6e0 [ 477.868869][ T2802] ? is_module_text_address+0xe1/0x140 [ 477.874563][ T2802] ? kernfs_new_node+0x170/0x170 [ 477.879486][ T2802] ? ptr_to_hashval+0x60/0x60 [ 477.884141][ T2802] ? arch_stack_walk+0xf8/0x140 [ 477.888967][ T2802] ? snprintf+0xd6/0x120 [ 477.893216][ T2802] kernfs_new_node+0x97/0x170 [ 477.897954][ T2802] __kernfs_create_file+0x4a/0x270 [ 477.903052][ T2802] cgroup_addrm_files+0xab8/0xfe0 [ 477.908171][ T2802] ? ____kasan_kmalloc+0xdc/0x110 [ 477.913193][ T2802] ? __kasan_kmalloc+0x9/0x10 [ 477.917862][ T2802] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 477.923388][ T2802] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 477.929606][ T2802] ? delete_node+0x759/0x7b0 [ 477.934187][ T2802] ? __kasan_check_read+0x11/0x20 [ 477.939203][ T2802] ? delete_node+0x759/0x7b0 [ 477.943769][ T2802] ? __kasan_check_write+0x14/0x20 [ 477.948868][ T2802] ? idr_replace+0x1c4/0x230 [ 477.953450][ T2802] ? idr_get_next+0x4b0/0x4b0 [ 477.958189][ T2802] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 477.963188][ T2802] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 477.969495][ T2802] css_populate_dir+0x137/0x370 [ 477.974433][ T2802] cgroup_apply_control_enable+0x8b9/0x12f0 [ 477.980403][ T2802] cgroup_apply_control+0x8e/0x7e0 [ 477.985496][ T2802] ? css_next_child+0x160/0x160 [ 477.990324][ T2802] ? stack_trace_save+0x12d/0x1f0 [ 477.995343][ T2802] ? io_schedule+0x120/0x120 [ 477.999911][ T2802] ? kernfs_fop_write_iter+0x15e/0x410 [ 478.005346][ T2802] ? __kasan_check_write+0x14/0x20 [ 478.010435][ T2802] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 478.015813][ T2802] cgroup_subtree_control_write+0xd19/0x1310 [ 478.021953][ T2802] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 478.028721][ T2802] ? __kasan_check_write+0x14/0x20 [ 478.033838][ T2802] ? _copy_from_iter+0x3fb/0xd60 [ 478.038766][ T2802] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 478.044725][ T2802] cgroup_file_write+0x28e/0x590 [ 478.049643][ T2802] ? cgroup_seqfile_stop+0xc0/0xc0 [ 478.054731][ T2802] ? mutex_trylock+0x180/0x180 [ 478.059470][ T2802] ? __kasan_check_write+0x14/0x20 [ 478.064563][ T2802] kernfs_fop_write_iter+0x2d0/0x410 [ 478.070100][ T2802] ? cgroup_seqfile_stop+0xc0/0xc0 [ 478.075360][ T2802] vfs_write+0xc4a/0xf80 [ 478.079577][ T2802] ? slab_free_freelist_hook+0xcc/0x1a0 [ 478.085098][ T2802] ? kernel_write+0x420/0x420 [ 478.089769][ T2802] ? do_sys_openat2+0x397/0x470 [ 478.096651][ T2802] ? __kasan_check_read+0x11/0x20 [ 478.101764][ T2802] ? __fdget_pos+0x27e/0x310 [ 478.106436][ T2802] ksys_write+0x198/0x2c0 [ 478.110740][ T2802] ? __ia32_sys_read+0x90/0x90 [ 478.116984][ T2802] ? debug_smp_processor_id+0x17/0x20 [ 478.122353][ T2802] __x64_sys_write+0x7b/0x90 [ 478.127012][ T2802] do_syscall_64+0x34/0x70 [ 478.131645][ T2802] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 478.137567][ T2802] RIP: 0033:0x7f48883727a9 [ 478.141974][ T2802] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 478.162436][ T2802] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 478.170846][ T2802] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 478.179162][ T2802] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 478.187109][ T2802] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 478.195264][ T2802] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 478.203379][ T2802] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000026 [ 478.211816][ T2802] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 478.247049][ T2803] FAULT_INJECTION: forcing a failure. [ 478.247049][ T2803] name failslab, interval 1, probability 0, space 0, times 0 [ 478.259779][ T2803] CPU: 0 PID: 2803 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 478.270628][ T2803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 478.280773][ T2803] Call Trace: [ 478.284067][ T2803] dump_stack_lvl+0x1e2/0x24b [ 478.290298][ T2803] ? bfq_pos_tree_add_move+0x43e/0x43e [ 478.295752][ T2803] ? selinux_kernfs_init_security+0x1a8/0x760 [ 478.301804][ T2803] dump_stack+0x15/0x17 [ 478.306039][ T2803] should_fail+0x3c0/0x510 [ 478.310634][ T2803] ? __kernfs_new_node+0x99/0x6e0 [ 478.315648][ T2803] __should_failslab+0x9f/0xe0 [ 478.320408][ T2803] should_failslab+0x9/0x20 [ 478.325514][ T2803] __kmalloc_track_caller+0x5f/0x350 [ 478.330908][ T2803] kstrdup_const+0x55/0x90 [ 478.335357][ T2803] __kernfs_new_node+0x99/0x6e0 [ 478.340309][ T2803] ? is_module_text_address+0xe1/0x140 [ 478.345766][ T2803] ? kernfs_new_node+0x170/0x170 [ 478.350709][ T2803] ? ptr_to_hashval+0x60/0x60 [ 478.355373][ T2803] ? mutex_lock+0xb2/0x1e0 [ 478.359775][ T2803] ? snprintf+0xd6/0x120 [ 478.364074][ T2803] ? mutex_unlock+0x29/0xf0 [ 478.368685][ T2803] kernfs_new_node+0x97/0x170 [ 478.373375][ T2803] __kernfs_create_file+0x4a/0x270 [ 478.378514][ T2803] cgroup_addrm_files+0xab8/0xfe0 [ 478.383640][ T2803] ? ____kasan_kmalloc+0xdc/0x110 [ 478.388751][ T2803] ? __kasan_kmalloc+0x9/0x10 [ 478.393443][ T2803] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 478.399120][ T2803] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 478.405299][ T2803] ? delete_node+0x759/0x7b0 [ 478.409885][ T2803] ? __kasan_check_read+0x11/0x20 [ 478.414933][ T2803] ? idr_replace+0x1c4/0x230 [ 478.419544][ T2803] ? idr_get_next+0x4b0/0x4b0 [ 478.424246][ T2803] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 478.429282][ T2803] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 478.434597][ T2803] css_populate_dir+0x137/0x370 [ 478.439573][ T2803] cgroup_apply_control_enable+0x8b9/0x12f0 [ 478.445482][ T2803] cgroup_apply_control+0x8e/0x7e0 [ 478.450744][ T2803] ? css_next_child+0x160/0x160 [ 478.455604][ T2803] ? stack_trace_save+0x12d/0x1f0 [ 478.460631][ T2803] ? io_schedule+0x120/0x120 [ 478.466005][ T2803] ? kernfs_fop_write_iter+0x15e/0x410 [ 478.471548][ T2803] ? __kasan_check_write+0x14/0x20 [ 478.476898][ T2803] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 478.482606][ T2803] cgroup_subtree_control_write+0xd19/0x1310 [ 478.488621][ T2803] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 478.494697][ T2803] ? __kasan_check_write+0x14/0x20 [ 478.499809][ T2803] ? _copy_from_iter+0x3fb/0xd60 [ 478.504752][ T2803] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 478.510819][ T2803] cgroup_file_write+0x28e/0x590 [ 478.515763][ T2803] ? cgroup_seqfile_stop+0xc0/0xc0 [ 478.520996][ T2803] ? mutex_trylock+0x180/0x180 [ 478.526080][ T2803] ? __kasan_check_write+0x14/0x20 [ 478.531189][ T2803] kernfs_fop_write_iter+0x2d0/0x410 [ 478.536550][ T2803] ? cgroup_seqfile_stop+0xc0/0xc0 [ 478.541693][ T2803] vfs_write+0xc4a/0xf80 [ 478.545917][ T2803] ? slab_free_freelist_hook+0xcc/0x1a0 [ 478.552692][ T2803] ? kernel_write+0x420/0x420 [ 478.557356][ T2803] ? do_sys_openat2+0x397/0x470 [ 478.562185][ T2803] ? __kasan_check_read+0x11/0x20 [ 478.567811][ T2803] ? __fdget_pos+0x27e/0x310 [ 478.572389][ T2803] ksys_write+0x198/0x2c0 [ 478.576711][ T2803] ? __ia32_sys_read+0x90/0x90 [ 478.581743][ T2803] ? debug_smp_processor_id+0x17/0x20 [ 478.587261][ T2803] __x64_sys_write+0x7b/0x90 [ 478.591854][ T2803] do_syscall_64+0x34/0x70 [ 478.596261][ T2803] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 478.602139][ T2803] RIP: 0033:0x7f48883727a9 [ 478.606723][ T2803] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 478.626634][ T2803] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 478.635244][ T2803] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 478.643292][ T2803] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 478.651410][ T2803] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 478.659900][ T2803] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 478.668087][ T2803] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001c [ 478.676424][ T2803] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 478.717056][ T2804] FAULT_INJECTION: forcing a failure. [ 478.717056][ T2804] name failslab, interval 1, probability 0, space 0, times 0 [ 478.730420][ T2804] CPU: 1 PID: 2804 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 478.740826][ T2804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 478.751047][ T2804] Call Trace: [ 478.754328][ T2804] dump_stack_lvl+0x1e2/0x24b [ 478.758989][ T2804] ? bfq_pos_tree_add_move+0x43e/0x43e [ 478.764426][ T2804] ? selinux_kernfs_init_security+0x1a8/0x760 [ 478.770467][ T2804] dump_stack+0x15/0x17 [ 478.774608][ T2804] should_fail+0x3c0/0x510 [ 478.779141][ T2804] ? __kernfs_new_node+0x99/0x6e0 [ 478.784581][ T2804] __should_failslab+0x9f/0xe0 [ 478.789461][ T2804] should_failslab+0x9/0x20 [ 478.794057][ T2804] __kmalloc_track_caller+0x5f/0x350 [ 478.799328][ T2804] kstrdup_const+0x55/0x90 [ 478.803725][ T2804] __kernfs_new_node+0x99/0x6e0 [ 478.808663][ T2804] ? is_module_text_address+0xe1/0x140 [ 478.814100][ T2804] ? kernfs_new_node+0x170/0x170 [ 478.819012][ T2804] ? ptr_to_hashval+0x60/0x60 [ 478.823661][ T2804] ? mutex_lock+0xb2/0x1e0 [ 478.828054][ T2804] ? snprintf+0xd6/0x120 [ 478.832296][ T2804] ? mutex_unlock+0x29/0xf0 [ 478.836780][ T2804] kernfs_new_node+0x97/0x170 [ 478.841447][ T2804] __kernfs_create_file+0x4a/0x270 [ 478.846623][ T2804] cgroup_addrm_files+0xab8/0xfe0 [ 478.851624][ T2804] ? ____kasan_kmalloc+0xdc/0x110 [ 478.856623][ T2804] ? __kasan_kmalloc+0x9/0x10 [ 478.861286][ T2804] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 478.866810][ T2804] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 478.872958][ T2804] ? delete_node+0x759/0x7b0 [ 478.877523][ T2804] ? __kasan_check_read+0x11/0x20 [ 478.882529][ T2804] ? idr_replace+0x1c4/0x230 [ 478.887092][ T2804] ? idr_get_next+0x4b0/0x4b0 [ 478.891746][ T2804] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 478.896754][ T2804] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 478.901949][ T2804] css_populate_dir+0x137/0x370 [ 478.906781][ T2804] cgroup_apply_control_enable+0x8b9/0x12f0 [ 478.912754][ T2804] cgroup_apply_control+0x8e/0x7e0 [ 478.917844][ T2804] ? css_next_child+0x160/0x160 [ 478.923114][ T2804] ? stack_trace_save+0x12d/0x1f0 [ 478.928121][ T2804] ? io_schedule+0x120/0x120 [ 478.932687][ T2804] ? kernfs_fop_write_iter+0x15e/0x410 [ 478.938133][ T2804] ? __kasan_check_write+0x14/0x20 [ 478.943363][ T2804] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 478.948833][ T2804] cgroup_subtree_control_write+0xd19/0x1310 [ 478.955027][ T2804] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 478.960991][ T2804] ? __kasan_check_write+0x14/0x20 [ 478.966078][ T2804] ? _copy_from_iter+0x3fb/0xd60 [ 478.971080][ T2804] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 478.977033][ T2804] cgroup_file_write+0x28e/0x590 [ 478.981954][ T2804] ? cgroup_seqfile_stop+0xc0/0xc0 [ 478.987053][ T2804] ? mutex_trylock+0x180/0x180 [ 478.991809][ T2804] ? __kasan_check_write+0x14/0x20 [ 478.997028][ T2804] kernfs_fop_write_iter+0x2d0/0x410 [ 479.002354][ T2804] ? cgroup_seqfile_stop+0xc0/0xc0 [ 479.007485][ T2804] vfs_write+0xc4a/0xf80 [ 479.011711][ T2804] ? slab_free_freelist_hook+0xcc/0x1a0 [ 479.017683][ T2804] ? kernel_write+0x420/0x420 [ 479.022344][ T2804] ? do_sys_openat2+0x397/0x470 [ 479.027172][ T2804] ? __kasan_check_read+0x11/0x20 [ 479.032172][ T2804] ? __fdget_pos+0x27e/0x310 [ 479.036738][ T2804] ksys_write+0x198/0x2c0 [ 479.041044][ T2804] ? __ia32_sys_read+0x90/0x90 [ 479.045874][ T2804] ? debug_smp_processor_id+0x17/0x20 [ 479.051235][ T2804] __x64_sys_write+0x7b/0x90 [ 479.055980][ T2804] do_syscall_64+0x34/0x70 [ 479.060393][ T2804] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 479.066277][ T2804] RIP: 0033:0x7f48883727a9 [ 479.070710][ T2804] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 479.090656][ T2804] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 479.099048][ T2804] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 479.107013][ T2804] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 479.114991][ T2804] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 479.123230][ T2804] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 479.131179][ T2804] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000018 [ 479.139353][ T2804] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 479.187037][ T2795] FAULT_INJECTION: forcing a failure. [ 479.187037][ T2795] name failslab, interval 1, probability 0, space 0, times 0 [ 479.199708][ T2795] CPU: 1 PID: 2795 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 479.210248][ T2795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 479.220391][ T2795] Call Trace: [ 479.223685][ T2795] dump_stack_lvl+0x1e2/0x24b [ 479.228512][ T2795] ? bfq_pos_tree_add_move+0x43e/0x43e [ 479.233966][ T2795] ? selinux_kernfs_init_security+0x1a8/0x760 [ 479.240041][ T2795] dump_stack+0x15/0x17 [ 479.244196][ T2795] should_fail+0x3c0/0x510 [ 479.248605][ T2795] ? __kernfs_new_node+0x99/0x6e0 [ 479.253621][ T2795] __should_failslab+0x9f/0xe0 [ 479.258429][ T2795] should_failslab+0x9/0x20 [ 479.263136][ T2795] __kmalloc_track_caller+0x5f/0x350 [ 479.268414][ T2795] kstrdup_const+0x55/0x90 [ 479.272879][ T2795] __kernfs_new_node+0x99/0x6e0 [ 479.277713][ T2795] ? is_module_text_address+0xe1/0x140 [ 479.283151][ T2795] ? kernfs_new_node+0x170/0x170 [ 479.288089][ T2795] ? ptr_to_hashval+0x60/0x60 [ 479.292745][ T2795] ? mutex_lock+0xb2/0x1e0 [ 479.297148][ T2795] ? snprintf+0xd6/0x120 [ 479.301404][ T2795] ? mutex_unlock+0x29/0xf0 [ 479.305909][ T2795] kernfs_new_node+0x97/0x170 [ 479.310800][ T2795] __kernfs_create_file+0x4a/0x270 [ 479.316037][ T2795] cgroup_addrm_files+0xab8/0xfe0 [ 479.321459][ T2795] ? ____kasan_kmalloc+0xdc/0x110 [ 479.326488][ T2795] ? __kasan_kmalloc+0x9/0x10 [ 479.331163][ T2795] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 479.336980][ T2795] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 479.343117][ T2795] ? delete_node+0x759/0x7b0 [ 479.347805][ T2795] ? __kasan_check_read+0x11/0x20 [ 479.352810][ T2795] ? idr_replace+0x1c4/0x230 [ 479.357476][ T2795] ? idr_get_next+0x4b0/0x4b0 [ 479.362133][ T2795] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 479.367131][ T2795] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 479.372306][ T2795] css_populate_dir+0x137/0x370 [ 479.377135][ T2795] cgroup_apply_control_enable+0x8b9/0x12f0 [ 479.383010][ T2795] cgroup_apply_control+0x8e/0x7e0 [ 479.388104][ T2795] ? css_next_child+0x160/0x160 [ 479.393059][ T2795] ? stack_trace_save+0x12d/0x1f0 [ 479.398184][ T2795] ? io_schedule+0x120/0x120 [ 479.402947][ T2795] ? kernfs_fop_write_iter+0x15e/0x410 [ 479.408765][ T2795] ? __kasan_check_write+0x14/0x20 [ 479.414043][ T2795] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 479.419323][ T2795] cgroup_subtree_control_write+0xd19/0x1310 [ 479.425378][ T2795] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 479.431353][ T2795] ? __kasan_check_write+0x14/0x20 [ 479.436455][ T2795] ? _copy_from_iter+0x3fb/0xd60 [ 479.441377][ T2795] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 479.447342][ T2795] cgroup_file_write+0x28e/0x590 [ 479.452262][ T2795] ? cgroup_seqfile_stop+0xc0/0xc0 [ 479.457570][ T2795] ? mutex_trylock+0x180/0x180 [ 479.462451][ T2795] ? __kasan_check_write+0x14/0x20 [ 479.467552][ T2795] kernfs_fop_write_iter+0x2d0/0x410 [ 479.473026][ T2795] ? cgroup_seqfile_stop+0xc0/0xc0 [ 479.478187][ T2795] vfs_write+0xc4a/0xf80 [ 479.482433][ T2795] ? slab_free_freelist_hook+0xcc/0x1a0 [ 479.487996][ T2795] ? kernel_write+0x420/0x420 [ 479.492709][ T2795] ? do_sys_openat2+0x397/0x470 [ 479.497555][ T2795] ? __kasan_check_read+0x11/0x20 [ 479.502869][ T2795] ? __fdget_pos+0x27e/0x310 [ 479.507471][ T2795] ksys_write+0x198/0x2c0 [ 479.511974][ T2795] ? __ia32_sys_read+0x90/0x90 [ 479.517338][ T2795] ? debug_smp_processor_id+0x17/0x20 [ 479.522805][ T2795] __x64_sys_write+0x7b/0x90 [ 479.527439][ T2795] do_syscall_64+0x34/0x70 [ 479.531975][ T2795] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 479.538048][ T2795] RIP: 0033:0x7f48883727a9 [ 479.542616][ T2795] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 479.562910][ T2795] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 479.571329][ T2795] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 479.579401][ T2795] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 479.587476][ T2795] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 479.595532][ T2795] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 479.603514][ T2795] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000015 [ 479.611597][ T2795] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 479.647304][ T2805] FAULT_INJECTION: forcing a failure. [ 479.647304][ T2805] name failslab, interval 1, probability 0, space 0, times 0 [ 479.660250][ T2805] CPU: 0 PID: 2805 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 479.670758][ T2805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 479.681327][ T2805] Call Trace: [ 479.684623][ T2805] dump_stack_lvl+0x1e2/0x24b [ 479.689549][ T2805] ? bfq_pos_tree_add_move+0x43e/0x43e [ 479.695010][ T2805] ? selinux_kernfs_init_security+0x1a8/0x760 [ 479.701050][ T2805] dump_stack+0x15/0x17 [ 479.705181][ T2805] should_fail+0x3c0/0x510 [ 479.709680][ T2805] ? __kernfs_new_node+0x99/0x6e0 [ 479.714682][ T2805] __should_failslab+0x9f/0xe0 [ 479.719436][ T2805] should_failslab+0x9/0x20 [ 479.723914][ T2805] __kmalloc_track_caller+0x5f/0x350 [ 479.729173][ T2805] kstrdup_const+0x55/0x90 [ 479.733587][ T2805] __kernfs_new_node+0x99/0x6e0 [ 479.738442][ T2805] ? is_module_text_address+0xe1/0x140 [ 479.743907][ T2805] ? kernfs_new_node+0x170/0x170 [ 479.749090][ T2805] ? ptr_to_hashval+0x60/0x60 [ 479.753830][ T2805] ? mutex_lock+0xb2/0x1e0 [ 479.758226][ T2805] ? snprintf+0xd6/0x120 [ 479.762508][ T2805] ? mutex_unlock+0x29/0xf0 [ 479.767000][ T2805] kernfs_new_node+0x97/0x170 [ 479.771683][ T2805] __kernfs_create_file+0x4a/0x270 [ 479.776774][ T2805] cgroup_addrm_files+0xab8/0xfe0 [ 479.781782][ T2805] ? ____kasan_kmalloc+0xdc/0x110 [ 479.786972][ T2805] ? __kasan_kmalloc+0x9/0x10 [ 479.791627][ T2805] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 479.797161][ T2805] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 479.803290][ T2805] ? delete_node+0x759/0x7b0 [ 479.807854][ T2805] ? __kasan_check_read+0x11/0x20 [ 479.812863][ T2805] ? idr_replace+0x1c4/0x230 [ 479.817528][ T2805] ? idr_get_next+0x4b0/0x4b0 [ 479.822539][ T2805] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 479.827539][ T2805] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 479.832726][ T2805] css_populate_dir+0x137/0x370 [ 479.837559][ T2805] cgroup_apply_control_enable+0x8b9/0x12f0 [ 479.843455][ T2805] cgroup_apply_control+0x8e/0x7e0 [ 479.848542][ T2805] ? css_next_child+0x160/0x160 [ 479.853369][ T2805] ? stack_trace_save+0x12d/0x1f0 [ 479.858396][ T2805] ? io_schedule+0x120/0x120 [ 479.862990][ T2805] ? kernfs_fop_write_iter+0x15e/0x410 [ 479.868555][ T2805] ? __kasan_check_write+0x14/0x20 [ 479.873738][ T2805] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 479.879088][ T2805] cgroup_subtree_control_write+0xd19/0x1310 [ 479.885045][ T2805] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 479.891001][ T2805] ? __kasan_check_write+0x14/0x20 [ 479.896088][ T2805] ? _copy_from_iter+0x3fb/0xd60 [ 479.901000][ T2805] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 479.907065][ T2805] cgroup_file_write+0x28e/0x590 [ 479.911983][ T2805] ? cgroup_seqfile_stop+0xc0/0xc0 [ 479.917075][ T2805] ? mutex_trylock+0x180/0x180 [ 479.921970][ T2805] ? __kasan_check_write+0x14/0x20 [ 479.927320][ T2805] kernfs_fop_write_iter+0x2d0/0x410 [ 479.932587][ T2805] ? cgroup_seqfile_stop+0xc0/0xc0 [ 479.937683][ T2805] vfs_write+0xc4a/0xf80 [ 479.941913][ T2805] ? slab_free_freelist_hook+0xcc/0x1a0 [ 479.947438][ T2805] ? kernel_write+0x420/0x420 [ 479.952091][ T2805] ? do_sys_openat2+0x397/0x470 [ 479.956920][ T2805] ? __kasan_check_read+0x11/0x20 [ 479.962031][ T2805] ? __fdget_pos+0x27e/0x310 [ 479.966597][ T2805] ksys_write+0x198/0x2c0 [ 479.971076][ T2805] ? __ia32_sys_read+0x90/0x90 [ 479.975821][ T2805] ? debug_smp_processor_id+0x17/0x20 [ 479.981689][ T2805] __x64_sys_write+0x7b/0x90 [ 479.986266][ T2805] do_syscall_64+0x34/0x70 [ 479.990673][ T2805] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 479.996570][ T2805] RIP: 0033:0x7f48883727a9 [ 480.000981][ T2805] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 480.020920][ T2805] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 480.029399][ T2805] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 480.037385][ T2805] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 480.045331][ T2805] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 480.053298][ T2805] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 480.061449][ T2805] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000027 [ 480.069700][ T2805] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 480.117214][ T2798] FAULT_INJECTION: forcing a failure. [ 480.117214][ T2798] name failslab, interval 1, probability 0, space 0, times 0 [ 480.129987][ T2798] CPU: 0 PID: 2798 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 480.140535][ T2798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 480.150689][ T2798] Call Trace: [ 480.153978][ T2798] dump_stack_lvl+0x1e2/0x24b [ 480.158659][ T2798] ? bfq_pos_tree_add_move+0x43e/0x43e [ 480.164197][ T2798] ? selinux_kernfs_init_security+0x1a8/0x760 [ 480.170426][ T2798] dump_stack+0x15/0x17 [ 480.174767][ T2798] should_fail+0x3c0/0x510 [ 480.179174][ T2798] ? __kernfs_new_node+0x99/0x6e0 [ 480.184541][ T2798] __should_failslab+0x9f/0xe0 [ 480.189331][ T2798] should_failslab+0x9/0x20 [ 480.193919][ T2798] __kmalloc_track_caller+0x5f/0x350 [ 480.200144][ T2798] kstrdup_const+0x55/0x90 [ 480.204656][ T2798] __kernfs_new_node+0x99/0x6e0 [ 480.209517][ T2798] ? is_module_text_address+0xe1/0x140 [ 480.214962][ T2798] ? kernfs_new_node+0x170/0x170 [ 480.219889][ T2798] ? ptr_to_hashval+0x60/0x60 [ 480.224562][ T2798] ? mutex_lock+0xb2/0x1e0 [ 480.228976][ T2798] ? snprintf+0xd6/0x120 [ 480.233207][ T2798] ? mutex_unlock+0x29/0xf0 [ 480.237794][ T2798] kernfs_new_node+0x97/0x170 [ 480.242504][ T2798] __kernfs_create_file+0x4a/0x270 [ 480.247619][ T2798] cgroup_addrm_files+0xab8/0xfe0 [ 480.252784][ T2798] ? ____kasan_kmalloc+0xdc/0x110 [ 480.257878][ T2798] ? __kasan_kmalloc+0x9/0x10 [ 480.262549][ T2798] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 480.268247][ T2798] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 480.274384][ T2798] ? delete_node+0x759/0x7b0 [ 480.278959][ T2798] ? __kasan_check_read+0x11/0x20 [ 480.284131][ T2798] ? idr_replace+0x1c4/0x230 [ 480.288829][ T2798] ? idr_get_next+0x4b0/0x4b0 [ 480.293513][ T2798] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 480.299048][ T2798] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 480.304359][ T2798] css_populate_dir+0x137/0x370 [ 480.309232][ T2798] cgroup_apply_control_enable+0x8b9/0x12f0 [ 480.315211][ T2798] cgroup_apply_control+0x8e/0x7e0 [ 480.320312][ T2798] ? css_next_child+0x160/0x160 [ 480.325273][ T2798] ? stack_trace_save+0x12d/0x1f0 [ 480.330286][ T2798] ? io_schedule+0x120/0x120 [ 480.334922][ T2798] ? kernfs_fop_write_iter+0x15e/0x410 [ 480.340505][ T2798] ? __kasan_check_write+0x14/0x20 [ 480.345612][ T2798] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 480.350904][ T2798] cgroup_subtree_control_write+0xd19/0x1310 [ 480.356875][ T2798] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 480.363037][ T2798] ? __kasan_check_write+0x14/0x20 [ 480.368148][ T2798] ? _copy_from_iter+0x3fb/0xd60 [ 480.373140][ T2798] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 480.379342][ T2798] cgroup_file_write+0x28e/0x590 [ 480.384279][ T2798] ? cgroup_seqfile_stop+0xc0/0xc0 [ 480.389579][ T2798] ? mutex_trylock+0x180/0x180 [ 480.394339][ T2798] ? __kasan_check_write+0x14/0x20 [ 480.399435][ T2798] kernfs_fop_write_iter+0x2d0/0x410 [ 480.404730][ T2798] ? cgroup_seqfile_stop+0xc0/0xc0 [ 480.409842][ T2798] vfs_write+0xc4a/0xf80 [ 480.414204][ T2798] ? slab_free_freelist_hook+0xcc/0x1a0 [ 480.419742][ T2798] ? kernel_write+0x420/0x420 [ 480.424470][ T2798] ? do_sys_openat2+0x397/0x470 [ 480.429425][ T2798] ? __kasan_check_read+0x11/0x20 [ 480.434455][ T2798] ? __fdget_pos+0x27e/0x310 [ 480.439058][ T2798] ksys_write+0x198/0x2c0 [ 480.443379][ T2798] ? __ia32_sys_read+0x90/0x90 [ 480.448127][ T2798] ? debug_smp_processor_id+0x17/0x20 [ 480.453486][ T2798] __x64_sys_write+0x7b/0x90 [ 480.458080][ T2798] do_syscall_64+0x34/0x70 [ 480.462498][ T2798] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 480.468585][ T2798] RIP: 0033:0x7f48883727a9 [ 480.473014][ T2798] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 480.493153][ T2798] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 480.501767][ T2798] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 480.509898][ T2798] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 480.517948][ T2798] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 480.526020][ T2798] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 480.533987][ T2798] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000019 [ 480.543127][ T2798] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 480.587497][ T2807] FAULT_INJECTION: forcing a failure. [ 480.587497][ T2807] name failslab, interval 1, probability 0, space 0, times 0 [ 480.600468][ T2807] CPU: 0 PID: 2807 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 480.611320][ T2807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 480.621459][ T2807] Call Trace: [ 480.624779][ T2807] dump_stack_lvl+0x1e2/0x24b [ 480.629555][ T2807] ? bfq_pos_tree_add_move+0x43e/0x43e [ 480.635084][ T2807] ? selinux_kernfs_init_security+0x1a8/0x760 [ 480.641177][ T2807] dump_stack+0x15/0x17 [ 480.645322][ T2807] should_fail+0x3c0/0x510 [ 480.649894][ T2807] ? __kernfs_new_node+0x99/0x6e0 [ 480.655044][ T2807] __should_failslab+0x9f/0xe0 [ 480.659936][ T2807] should_failslab+0x9/0x20 [ 480.664435][ T2807] __kmalloc_track_caller+0x5f/0x350 [ 480.669810][ T2807] kstrdup_const+0x55/0x90 [ 480.674217][ T2807] __kernfs_new_node+0x99/0x6e0 [ 480.679141][ T2807] ? is_module_text_address+0xe1/0x140 [ 480.684867][ T2807] ? kernfs_new_node+0x170/0x170 [ 480.689910][ T2807] ? ptr_to_hashval+0x60/0x60 [ 480.694665][ T2807] ? arch_stack_walk+0xf8/0x140 [ 480.699508][ T2807] ? snprintf+0xd6/0x120 [ 480.703746][ T2807] kernfs_new_node+0x97/0x170 [ 480.708420][ T2807] __kernfs_create_file+0x4a/0x270 [ 480.713635][ T2807] cgroup_addrm_files+0xab8/0xfe0 [ 480.718665][ T2807] ? ____kasan_kmalloc+0xdc/0x110 [ 480.723681][ T2807] ? __kasan_kmalloc+0x9/0x10 [ 480.728351][ T2807] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 480.733880][ T2807] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 480.740023][ T2807] ? delete_node+0x759/0x7b0 [ 480.744713][ T2807] ? __kasan_check_read+0x11/0x20 [ 480.749817][ T2807] ? delete_node+0x759/0x7b0 [ 480.754393][ T2807] ? __kasan_check_write+0x14/0x20 [ 480.759517][ T2807] ? idr_replace+0x1c4/0x230 [ 480.764103][ T2807] ? idr_get_next+0x4b0/0x4b0 [ 480.768762][ T2807] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 480.773769][ T2807] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 480.778967][ T2807] css_populate_dir+0x137/0x370 [ 480.783834][ T2807] cgroup_apply_control_enable+0x8b9/0x12f0 [ 480.789714][ T2807] cgroup_apply_control+0x8e/0x7e0 [ 480.794804][ T2807] ? css_next_child+0x160/0x160 [ 480.799629][ T2807] ? io_schedule+0x120/0x120 [ 480.804197][ T2807] ? kernfs_fop_write_iter+0x15e/0x410 [ 480.809641][ T2807] ? __kasan_check_write+0x14/0x20 [ 480.814825][ T2807] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 480.820523][ T2807] cgroup_subtree_control_write+0xd19/0x1310 [ 480.826597][ T2807] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 480.832575][ T2807] ? __kasan_check_write+0x14/0x20 [ 480.837681][ T2807] ? _copy_from_iter+0x3fb/0xd60 [ 480.842609][ T2807] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 480.848804][ T2807] cgroup_file_write+0x28e/0x590 [ 480.853752][ T2807] ? cgroup_seqfile_stop+0xc0/0xc0 [ 480.858845][ T2807] ? mutex_trylock+0x180/0x180 [ 480.863587][ T2807] ? __kasan_check_write+0x14/0x20 [ 480.868678][ T2807] kernfs_fop_write_iter+0x2d0/0x410 [ 480.873940][ T2807] ? cgroup_seqfile_stop+0xc0/0xc0 [ 480.879029][ T2807] vfs_write+0xc4a/0xf80 [ 480.883252][ T2807] ? kernel_write+0x420/0x420 [ 480.887916][ T2807] ? do_sys_openat2+0x397/0x470 [ 480.892751][ T2807] ? __kasan_check_read+0x11/0x20 [ 480.897755][ T2807] ? __fdget_pos+0x27e/0x310 [ 480.902417][ T2807] ksys_write+0x198/0x2c0 [ 480.906742][ T2807] ? __ia32_sys_read+0x90/0x90 [ 480.911482][ T2807] ? debug_smp_processor_id+0x17/0x20 [ 480.916827][ T2807] __x64_sys_write+0x7b/0x90 [ 480.921392][ T2807] do_syscall_64+0x34/0x70 [ 480.925787][ T2807] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 480.931831][ T2807] RIP: 0033:0x7f48883727a9 [ 480.936248][ T2807] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 480.955833][ T2807] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 480.964250][ T2807] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 480.972215][ T2807] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 480.980345][ T2807] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 480.988318][ T2807] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 480.996287][ T2807] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000019 [ 481.005375][ T2807] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 481.047208][ T2806] FAULT_INJECTION: forcing a failure. [ 481.047208][ T2806] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 481.060474][ T2806] CPU: 1 PID: 2806 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 481.070890][ T2806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 481.081030][ T2806] Call Trace: [ 481.084316][ T2806] dump_stack_lvl+0x1e2/0x24b [ 481.088982][ T2806] ? bfq_pos_tree_add_move+0x43e/0x43e [ 481.094435][ T2806] ? stack_trace_save+0x12d/0x1f0 [ 481.099452][ T2806] ? __kasan_check_write+0x14/0x20 [ 481.104865][ T2806] dump_stack+0x15/0x17 [ 481.109022][ T2806] should_fail+0x3c0/0x510 [ 481.113450][ T2806] should_fail_alloc_page+0x50/0x60 [ 481.118720][ T2806] __alloc_pages_nodemask+0x1c0/0x890 [ 481.124135][ T2806] ? pcpu_block_update_hint_alloc+0x96c/0xd00 [ 481.130222][ T2806] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 481.136080][ T2806] ? pcpu_memcg_post_alloc_hook+0x1c8/0x340 [ 481.142104][ T2806] ? trace_raw_output_percpu_destroy_chunk+0xc0/0xc0 [ 481.148773][ T2806] allocate_slab+0x78/0x540 [ 481.153381][ T2806] ___slab_alloc+0x131/0x2e0 [ 481.158027][ T2806] ? percpu_ref_init+0xd0/0x340 [ 481.162925][ T2806] __slab_alloc+0x63/0xa0 [ 481.167271][ T2806] ? percpu_ref_init+0xd0/0x340 [ 481.172140][ T2806] kmem_cache_alloc_trace+0x20e/0x330 [ 481.177507][ T2806] ? percpu_ref_init+0xd0/0x340 [ 481.182477][ T2806] percpu_ref_init+0xd0/0x340 [ 481.187176][ T2806] ? cgroup_setup_root+0xea0/0xea0 [ 481.192493][ T2806] cgroup_apply_control_enable+0x3a2/0x12f0 [ 481.198644][ T2806] cgroup_apply_control+0x8e/0x7e0 [ 481.203743][ T2806] ? css_next_child+0x160/0x160 [ 481.208579][ T2806] ? stack_trace_save+0x12d/0x1f0 [ 481.213604][ T2806] ? io_schedule+0x120/0x120 [ 481.218360][ T2806] ? kernfs_fop_write_iter+0x15e/0x410 [ 481.224082][ T2806] ? __kasan_check_write+0x14/0x20 [ 481.229213][ T2806] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 481.234493][ T2806] cgroup_subtree_control_write+0xd19/0x1310 [ 481.240459][ T2806] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 481.246478][ T2806] ? __kasan_check_write+0x14/0x20 [ 481.251568][ T2806] ? _copy_from_iter+0x3fb/0xd60 [ 481.256509][ T2806] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 481.262573][ T2806] cgroup_file_write+0x28e/0x590 [ 481.267581][ T2806] ? cgroup_seqfile_stop+0xc0/0xc0 [ 481.272679][ T2806] ? mutex_trylock+0x180/0x180 [ 481.277425][ T2806] ? __kasan_check_write+0x14/0x20 [ 481.282517][ T2806] kernfs_fop_write_iter+0x2d0/0x410 [ 481.287803][ T2806] ? cgroup_seqfile_stop+0xc0/0xc0 [ 481.292917][ T2806] vfs_write+0xc4a/0xf80 [ 481.297178][ T2806] ? slab_free_freelist_hook+0xcc/0x1a0 [ 481.302740][ T2806] ? kernel_write+0x420/0x420 [ 481.307529][ T2806] ? do_sys_openat2+0x397/0x470 [ 481.312382][ T2806] ? __kasan_check_read+0x11/0x20 [ 481.317557][ T2806] ? __fdget_pos+0x27e/0x310 [ 481.322142][ T2806] ksys_write+0x198/0x2c0 [ 481.326459][ T2806] ? __ia32_sys_read+0x90/0x90 [ 481.331500][ T2806] ? debug_smp_processor_id+0x17/0x20 [ 481.336858][ T2806] __x64_sys_write+0x7b/0x90 [ 481.341442][ T2806] do_syscall_64+0x34/0x70 [ 481.345858][ T2806] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 481.351805][ T2806] RIP: 0033:0x7f48883727a9 [ 481.356206][ T2806] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 481.376029][ T2806] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 481.385088][ T2806] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 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 [ 481.393298][ T2806] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 481.401308][ T2806] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 481.409374][ T2806] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 481.417464][ T2806] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001d [ 481.457382][ T2809] FAULT_INJECTION: forcing a failure. [ 481.457382][ T2809] name failslab, interval 1, probability 0, space 0, times 0 [ 481.470255][ T2809] CPU: 0 PID: 2809 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 481.480910][ T2809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 481.491329][ T2809] Call Trace: [ 481.494820][ T2809] dump_stack_lvl+0x1e2/0x24b [ 481.499574][ T2809] ? panic+0x7d7/0x7d7 [ 481.503670][ T2809] ? bfq_pos_tree_add_move+0x43e/0x43e [ 481.509140][ T2809] ? selinux_kernfs_init_security+0x1a8/0x760 [ 481.515289][ T2809] dump_stack+0x15/0x17 [ 481.519444][ T2809] should_fail+0x3c0/0x510 [ 481.523934][ T2809] __should_failslab+0x9f/0xe0 [ 481.528768][ T2809] should_failslab+0x9/0x20 [ 481.533269][ T2809] kmem_cache_alloc+0x3f/0x300 [ 481.538128][ T2809] ? __kernfs_new_node+0xdb/0x6e0 [ 481.543400][ T2809] __kernfs_new_node+0xdb/0x6e0 [ 481.548237][ T2809] ? is_module_text_address+0xe1/0x140 [ 481.553693][ T2809] ? kernfs_new_node+0x170/0x170 [ 481.558720][ T2809] ? ptr_to_hashval+0x60/0x60 [ 481.563663][ T2809] ? arch_stack_walk+0xf8/0x140 [ 481.568509][ T2809] ? snprintf+0xd6/0x120 [ 481.572785][ T2809] kernfs_new_node+0x97/0x170 [ 481.577460][ T2809] __kernfs_create_file+0x4a/0x270 [ 481.582560][ T2809] cgroup_addrm_files+0xab8/0xfe0 [ 481.587568][ T2809] ? ____kasan_kmalloc+0xdc/0x110 [ 481.592585][ T2809] ? __kasan_kmalloc+0x9/0x10 [ 481.597468][ T2809] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 481.603085][ T2809] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 481.609248][ T2809] ? delete_node+0x759/0x7b0 [ 481.613967][ T2809] ? __kasan_check_read+0x11/0x20 [ 481.618986][ T2809] ? delete_node+0x759/0x7b0 [ 481.623564][ T2809] ? __kasan_check_write+0x14/0x20 [ 481.628757][ T2809] ? idr_replace+0x1c4/0x230 [ 481.633570][ T2809] ? idr_get_next+0x4b0/0x4b0 [ 481.638227][ T2809] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 481.643328][ T2809] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 481.648623][ T2809] css_populate_dir+0x137/0x370 [ 481.653482][ T2809] cgroup_apply_control_enable+0x8b9/0x12f0 [ 481.659381][ T2809] cgroup_apply_control+0x8e/0x7e0 [ 481.664496][ T2809] ? css_next_child+0x160/0x160 [ 481.669534][ T2809] ? stack_trace_save+0x12d/0x1f0 [ 481.674718][ T2809] ? io_schedule+0x120/0x120 [ 481.679302][ T2809] ? kernfs_fop_write_iter+0x15e/0x410 [ 481.685307][ T2809] ? __kasan_check_write+0x14/0x20 [ 481.690429][ T2809] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 481.695700][ T2809] cgroup_subtree_control_write+0xd19/0x1310 [ 481.701756][ T2809] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 481.707817][ T2809] ? __kasan_check_write+0x14/0x20 [ 481.712921][ T2809] ? _copy_from_iter+0x3fb/0xd60 [ 481.717850][ T2809] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 481.723937][ T2809] cgroup_file_write+0x28e/0x590 [ 481.728927][ T2809] ? cgroup_seqfile_stop+0xc0/0xc0 [ 481.734134][ T2809] ? mutex_trylock+0x180/0x180 [ 481.738931][ T2809] ? __kasan_check_write+0x14/0x20 [ 481.744126][ T2809] kernfs_fop_write_iter+0x2d0/0x410 [ 481.749406][ T2809] ? cgroup_seqfile_stop+0xc0/0xc0 [ 481.754510][ T2809] vfs_write+0xc4a/0xf80 [ 481.758743][ T2809] ? slab_free_freelist_hook+0xcc/0x1a0 [ 481.764278][ T2809] ? kernel_write+0x420/0x420 [ 481.768952][ T2809] ? do_sys_openat2+0x397/0x470 [ 481.773873][ T2809] ? __kasan_check_read+0x11/0x20 [ 481.778896][ T2809] ? __fdget_pos+0x27e/0x310 [ 481.783779][ T2809] ksys_write+0x198/0x2c0 [ 481.788104][ T2809] ? __kasan_check_write+0x14/0x20 [ 481.793220][ T2809] ? __ia32_sys_read+0x90/0x90 [ 481.798060][ T2809] ? debug_smp_processor_id+0x17/0x20 [ 481.803532][ T2809] __x64_sys_write+0x7b/0x90 [ 481.808110][ T2809] do_syscall_64+0x34/0x70 [ 481.812530][ T2809] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 481.818496][ T2809] RIP: 0033:0x7f48883727a9 [ 481.823070][ T2809] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 481.842766][ T2809] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 481.851258][ T2809] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 481.859238][ T2809] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 481.867488][ T2809] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 481.875442][ T2809] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 481.883583][ T2809] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000028 [ 481.891675][ T2809] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 481.937276][ T2815] FAULT_INJECTION: forcing a failure. [ 481.937276][ T2815] name failslab, interval 1, probability 0, space 0, times 0 [ 481.950327][ T2815] CPU: 0 PID: 2815 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 481.961011][ T2815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 481.971422][ T2815] Call Trace: [ 481.974712][ T2815] dump_stack_lvl+0x1e2/0x24b [ 481.979474][ T2815] ? bfq_pos_tree_add_move+0x43e/0x43e [ 481.984949][ T2815] ? selinux_kernfs_init_security+0x1a8/0x760 [ 481.991118][ T2815] dump_stack+0x15/0x17 [ 481.995431][ T2815] should_fail+0x3c0/0x510 [ 481.999913][ T2815] ? __kernfs_new_node+0x99/0x6e0 [ 482.005018][ T2815] __should_failslab+0x9f/0xe0 [ 482.009774][ T2815] should_failslab+0x9/0x20 [ 482.014352][ T2815] __kmalloc_track_caller+0x5f/0x350 [ 482.019643][ T2815] kstrdup_const+0x55/0x90 [ 482.024148][ T2815] __kernfs_new_node+0x99/0x6e0 [ 482.028976][ T2815] ? is_module_text_address+0xe1/0x140 [ 482.034430][ T2815] ? kernfs_new_node+0x170/0x170 [ 482.039353][ T2815] ? ptr_to_hashval+0x60/0x60 [ 482.044094][ T2815] ? mutex_lock+0xb2/0x1e0 [ 482.048485][ T2815] ? snprintf+0xd6/0x120 [ 482.052769][ T2815] ? mutex_unlock+0x29/0xf0 [ 482.057264][ T2815] kernfs_new_node+0x97/0x170 [ 482.062004][ T2815] __kernfs_create_file+0x4a/0x270 [ 482.067100][ T2815] cgroup_addrm_files+0xab8/0xfe0 [ 482.072186][ T2815] ? ____kasan_kmalloc+0xdc/0x110 [ 482.077284][ T2815] ? __kasan_kmalloc+0x9/0x10 [ 482.081956][ T2815] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 482.087693][ T2815] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 482.094079][ T2815] ? delete_node+0x759/0x7b0 [ 482.098645][ T2815] ? __kasan_check_read+0x11/0x20 [ 482.103934][ T2815] ? idr_replace+0x1c4/0x230 [ 482.108585][ T2815] ? idr_get_next+0x4b0/0x4b0 [ 482.113332][ T2815] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 482.118330][ T2815] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 482.123687][ T2815] css_populate_dir+0x137/0x370 [ 482.128609][ T2815] cgroup_apply_control_enable+0x8b9/0x12f0 [ 482.134566][ T2815] cgroup_apply_control+0x8e/0x7e0 [ 482.139758][ T2815] ? css_next_child+0x160/0x160 [ 482.144584][ T2815] ? io_schedule+0x120/0x120 [ 482.149162][ T2815] ? kernfs_fop_write_iter+0x15e/0x410 [ 482.154598][ T2815] ? __kasan_check_write+0x14/0x20 [ 482.159946][ T2815] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 482.165209][ T2815] cgroup_subtree_control_write+0xd19/0x1310 [ 482.171429][ T2815] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 482.177383][ T2815] ? __kasan_check_write+0x14/0x20 [ 482.182560][ T2815] ? _copy_from_iter+0x3fb/0xd60 [ 482.187470][ T2815] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 482.193425][ T2815] cgroup_file_write+0x28e/0x590 [ 482.198336][ T2815] ? cgroup_seqfile_stop+0xc0/0xc0 [ 482.203521][ T2815] ? mutex_trylock+0x180/0x180 [ 482.208275][ T2815] ? __kasan_check_write+0x14/0x20 [ 482.213451][ T2815] kernfs_fop_write_iter+0x2d0/0x410 [ 482.218797][ T2815] ? cgroup_seqfile_stop+0xc0/0xc0 [ 482.223883][ T2815] vfs_write+0xc4a/0xf80 [ 482.228107][ T2815] ? kernel_write+0x420/0x420 [ 482.232934][ T2815] ? do_sys_openat2+0x397/0x470 [ 482.237761][ T2815] ? __kasan_check_read+0x11/0x20 [ 482.242958][ T2815] ? __fdget_pos+0x27e/0x310 [ 482.247523][ T2815] ksys_write+0x198/0x2c0 [ 482.251851][ T2815] ? __ia32_sys_read+0x90/0x90 [ 482.256600][ T2815] ? debug_smp_processor_id+0x17/0x20 [ 482.261960][ T2815] __x64_sys_write+0x7b/0x90 [ 482.266538][ T2815] do_syscall_64+0x34/0x70 [ 482.270974][ T2815] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 482.277057][ T2815] RIP: 0033:0x7f48883727a9 [ 482.281468][ T2815] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 482.301146][ T2815] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 482.309713][ T2815] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 482.317840][ T2815] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 482.325784][ T2815] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 482.333735][ T2815] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 482.341796][ T2815] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000029 [ 482.350354][ T2815] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 482.397378][ T2808] FAULT_INJECTION: forcing a failure. [ 482.397378][ T2808] name failslab, interval 1, probability 0, space 0, times 0 [ 482.410386][ T2808] CPU: 0 PID: 2808 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 482.421099][ T2808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 482.431226][ T2808] Call Trace: [ 482.434508][ T2808] dump_stack_lvl+0x1e2/0x24b [ 482.439169][ T2808] ? bfq_pos_tree_add_move+0x43e/0x43e [ 482.444619][ T2808] ? selinux_kernfs_init_security+0x1a8/0x760 [ 482.450811][ T2808] dump_stack+0x15/0x17 [ 482.455031][ T2808] should_fail+0x3c0/0x510 [ 482.459426][ T2808] ? __kernfs_new_node+0x99/0x6e0 [ 482.464544][ T2808] __should_failslab+0x9f/0xe0 [ 482.469460][ T2808] should_failslab+0x9/0x20 [ 482.473955][ T2808] __kmalloc_track_caller+0x5f/0x350 [ 482.479231][ T2808] kstrdup_const+0x55/0x90 [ 482.483632][ T2808] __kernfs_new_node+0x99/0x6e0 [ 482.488583][ T2808] ? is_module_text_address+0xe1/0x140 [ 482.494212][ T2808] ? kernfs_new_node+0x170/0x170 [ 482.499141][ T2808] ? ptr_to_hashval+0x60/0x60 [ 482.503820][ T2808] ? mutex_lock+0xb2/0x1e0 [ 482.508226][ T2808] ? snprintf+0xd6/0x120 [ 482.512459][ T2808] ? mutex_unlock+0x29/0xf0 [ 482.517070][ T2808] kernfs_new_node+0x97/0x170 [ 482.521878][ T2808] __kernfs_create_file+0x4a/0x270 [ 482.527006][ T2808] cgroup_addrm_files+0xab8/0xfe0 [ 482.532377][ T2808] ? ____kasan_kmalloc+0xdc/0x110 [ 482.537422][ T2808] ? __kasan_kmalloc+0x9/0x10 [ 482.542121][ T2808] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 482.547690][ T2808] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 482.553949][ T2808] ? delete_node+0x759/0x7b0 [ 482.558525][ T2808] ? __kasan_check_read+0x11/0x20 [ 482.563534][ T2808] ? idr_replace+0x1c4/0x230 [ 482.568111][ T2808] ? idr_get_next+0x4b0/0x4b0 [ 482.572766][ T2808] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 482.577946][ T2808] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 482.583136][ T2808] css_populate_dir+0x137/0x370 [ 482.587969][ T2808] cgroup_apply_control_enable+0x8b9/0x12f0 [ 482.593848][ T2808] cgroup_apply_control+0x8e/0x7e0 [ 482.598965][ T2808] ? css_next_child+0x160/0x160 [ 482.603793][ T2808] ? stack_trace_save+0x12d/0x1f0 [ 482.608820][ T2808] ? io_schedule+0x120/0x120 [ 482.613480][ T2808] ? kernfs_fop_write_iter+0x15e/0x410 [ 482.618924][ T2808] ? __kasan_check_write+0x14/0x20 [ 482.624023][ T2808] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 482.629339][ T2808] cgroup_subtree_control_write+0xd19/0x1310 [ 482.635319][ T2808] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 482.641313][ T2808] ? __kasan_check_write+0x14/0x20 [ 482.646417][ T2808] ? _copy_from_iter+0x3fb/0xd60 [ 482.651547][ T2808] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 482.657635][ T2808] cgroup_file_write+0x28e/0x590 [ 482.663260][ T2808] ? cgroup_seqfile_stop+0xc0/0xc0 [ 482.668387][ T2808] ? mutex_trylock+0x180/0x180 [ 482.673246][ T2808] ? __kasan_check_write+0x14/0x20 [ 482.678528][ T2808] kernfs_fop_write_iter+0x2d0/0x410 [ 482.683800][ T2808] ? cgroup_seqfile_stop+0xc0/0xc0 [ 482.689157][ T2808] vfs_write+0xc4a/0xf80 [ 482.693406][ T2808] ? slab_free_freelist_hook+0xcc/0x1a0 [ 482.698938][ T2808] ? kernel_write+0x420/0x420 [ 482.703600][ T2808] ? do_sys_openat2+0x397/0x470 [ 482.708428][ T2808] ? __kasan_check_read+0x11/0x20 [ 482.713451][ T2808] ? __fdget_pos+0x27e/0x310 [ 482.718112][ T2808] ksys_write+0x198/0x2c0 [ 482.722423][ T2808] ? __ia32_sys_read+0x90/0x90 [ 482.727182][ T2808] ? debug_smp_processor_id+0x17/0x20 [ 482.732537][ T2808] __x64_sys_write+0x7b/0x90 [ 482.737123][ T2808] do_syscall_64+0x34/0x70 [ 482.741519][ T2808] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 482.747545][ T2808] RIP: 0033:0x7f48883727a9 [ 482.752101][ T2808] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 482.772073][ T2808] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 482.780866][ T2808] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 482.789255][ T2808] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 482.797230][ T2808] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 482.805470][ T2808] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 482.813636][ T2808] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000016 [ 482.822276][ T2808] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 482.867721][ T2810] FAULT_INJECTION: forcing a failure. [ 482.867721][ T2810] name failslab, interval 1, probability 0, space 0, times 0 [ 482.880410][ T2810] CPU: 1 PID: 2810 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 482.890807][ T2810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 482.900887][ T2810] Call Trace: [ 482.904178][ T2810] dump_stack_lvl+0x1e2/0x24b [ 482.908842][ T2810] ? panic+0x7d7/0x7d7 [ 482.912984][ T2810] ? bfq_pos_tree_add_move+0x43e/0x43e [ 482.918419][ T2810] ? selinux_kernfs_init_security+0x1a8/0x760 [ 482.924459][ T2810] dump_stack+0x15/0x17 [ 482.928594][ T2810] should_fail+0x3c0/0x510 [ 482.932988][ T2810] __should_failslab+0x9f/0xe0 [ 482.937748][ T2810] should_failslab+0x9/0x20 [ 482.942234][ T2810] kmem_cache_alloc+0x3f/0x300 [ 482.952093][ T2810] ? __kernfs_new_node+0xdb/0x6e0 [ 482.957092][ T2810] __kernfs_new_node+0xdb/0x6e0 [ 482.961920][ T2810] ? is_module_text_address+0xe1/0x140 [ 482.967353][ T2810] ? kernfs_new_node+0x170/0x170 [ 482.972462][ T2810] ? ptr_to_hashval+0x60/0x60 [ 482.977124][ T2810] ? arch_stack_walk+0xf8/0x140 [ 482.981961][ T2810] ? snprintf+0xd6/0x120 [ 482.986268][ T2810] kernfs_new_node+0x97/0x170 [ 482.991017][ T2810] __kernfs_create_file+0x4a/0x270 [ 482.996103][ T2810] cgroup_addrm_files+0xab8/0xfe0 [ 483.001886][ T2810] ? ____kasan_kmalloc+0xdc/0x110 [ 483.006994][ T2810] ? __kasan_kmalloc+0x9/0x10 [ 483.011660][ T2810] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 483.017190][ T2810] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 483.023337][ T2810] ? delete_node+0x759/0x7b0 [ 483.028615][ T2810] ? __kasan_check_read+0x11/0x20 [ 483.033613][ T2810] ? delete_node+0x759/0x7b0 [ 483.038356][ T2810] ? __kasan_check_write+0x14/0x20 [ 483.043533][ T2810] ? idr_replace+0x1c4/0x230 [ 483.048191][ T2810] ? idr_get_next+0x4b0/0x4b0 [ 483.052843][ T2810] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 483.057869][ T2810] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 483.063215][ T2810] css_populate_dir+0x137/0x370 [ 483.068133][ T2810] cgroup_apply_control_enable+0x8b9/0x12f0 [ 483.074012][ T2810] cgroup_apply_control+0x8e/0x7e0 [ 483.079098][ T2810] ? css_next_child+0x160/0x160 [ 483.084361][ T2810] ? stack_trace_save+0x12d/0x1f0 [ 483.089365][ T2810] ? io_schedule+0x120/0x120 [ 483.094018][ T2810] ? kernfs_fop_write_iter+0x15e/0x410 [ 483.099572][ T2810] ? __kasan_check_write+0x14/0x20 [ 483.104664][ T2810] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 483.109944][ T2810] cgroup_subtree_control_write+0xd19/0x1310 [ 483.115908][ T2810] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 483.121904][ T2810] ? __kasan_check_write+0x14/0x20 [ 483.126988][ T2810] ? _copy_from_iter+0x3fb/0xd60 [ 483.131993][ T2810] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 483.137962][ T2810] cgroup_file_write+0x28e/0x590 [ 483.142887][ T2810] ? cgroup_seqfile_stop+0xc0/0xc0 [ 483.147976][ T2810] ? mutex_trylock+0x180/0x180 [ 483.152721][ T2810] ? __kasan_check_write+0x14/0x20 [ 483.157813][ T2810] kernfs_fop_write_iter+0x2d0/0x410 [ 483.163074][ T2810] ? cgroup_seqfile_stop+0xc0/0xc0 [ 483.168172][ T2810] vfs_write+0xc4a/0xf80 [ 483.172400][ T2810] ? slab_free_freelist_hook+0xcc/0x1a0 [ 483.177947][ T2810] ? kernel_write+0x420/0x420 [ 483.182935][ T2810] ? do_sys_openat2+0x397/0x470 [ 483.187784][ T2810] ? __kasan_check_read+0x11/0x20 [ 483.192872][ T2810] ? __fdget_pos+0x27e/0x310 [ 483.197852][ T2810] ksys_write+0x198/0x2c0 [ 483.202178][ T2810] ? __ia32_sys_read+0x90/0x90 [ 483.206920][ T2810] ? debug_smp_processor_id+0x17/0x20 [ 483.212285][ T2810] __x64_sys_write+0x7b/0x90 [ 483.216862][ T2810] do_syscall_64+0x34/0x70 [ 483.221257][ T2810] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 483.227123][ T2810] RIP: 0033:0x7f48883727a9 [ 483.231543][ T2810] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 483.251229][ T2810] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 483.259710][ T2810] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 483.267662][ T2810] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 483.275611][ T2810] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 483.283566][ T2810] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 483.291706][ T2810] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001a [ 483.300525][ T2810] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 483.347267][ T2816] FAULT_INJECTION: forcing a failure. [ 483.347267][ T2816] name failslab, interval 1, probability 0, space 0, times 0 [ 483.360779][ T2816] CPU: 1 PID: 2816 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 483.371324][ T2816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 483.381519][ T2816] Call Trace: [ 483.384807][ T2816] dump_stack_lvl+0x1e2/0x24b [ 483.389469][ T2816] ? bfq_pos_tree_add_move+0x43e/0x43e [ 483.394939][ T2816] ? selinux_kernfs_init_security+0x1a8/0x760 [ 483.401078][ T2816] dump_stack+0x15/0x17 [ 483.405213][ T2816] should_fail+0x3c0/0x510 [ 483.409707][ T2816] ? __kernfs_new_node+0x99/0x6e0 [ 483.414707][ T2816] __should_failslab+0x9f/0xe0 [ 483.420503][ T2816] should_failslab+0x9/0x20 [ 483.425077][ T2816] __kmalloc_track_caller+0x5f/0x350 [ 483.430510][ T2816] kstrdup_const+0x55/0x90 [ 483.434916][ T2816] __kernfs_new_node+0x99/0x6e0 [ 483.439756][ T2816] ? is_module_text_address+0xe1/0x140 [ 483.445238][ T2816] ? kernfs_new_node+0x170/0x170 [ 483.450353][ T2816] ? ptr_to_hashval+0x60/0x60 [ 483.455110][ T2816] ? mutex_lock+0xb2/0x1e0 [ 483.459518][ T2816] ? snprintf+0xd6/0x120 [ 483.463768][ T2816] ? mutex_unlock+0x29/0xf0 [ 483.468299][ T2816] kernfs_new_node+0x97/0x170 [ 483.473064][ T2816] __kernfs_create_file+0x4a/0x270 [ 483.478233][ T2816] cgroup_addrm_files+0xab8/0xfe0 [ 483.483269][ T2816] ? ____kasan_kmalloc+0xdc/0x110 [ 483.488458][ T2816] ? __kasan_kmalloc+0x9/0x10 [ 483.493337][ T2816] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 483.499018][ T2816] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 483.505152][ T2816] ? delete_node+0x759/0x7b0 [ 483.509740][ T2816] ? __kasan_check_read+0x11/0x20 [ 483.514781][ T2816] ? idr_replace+0x1c4/0x230 [ 483.519351][ T2816] ? idr_get_next+0x4b0/0x4b0 [ 483.524010][ T2816] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 483.529272][ T2816] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 483.534469][ T2816] css_populate_dir+0x137/0x370 [ 483.539304][ T2816] cgroup_apply_control_enable+0x8b9/0x12f0 [ 483.545528][ T2816] cgroup_apply_control+0x8e/0x7e0 [ 483.550830][ T2816] ? css_next_child+0x160/0x160 [ 483.555853][ T2816] ? stack_trace_save+0x12d/0x1f0 [ 483.560958][ T2816] ? io_schedule+0x120/0x120 [ 483.565644][ T2816] ? kernfs_fop_write_iter+0x15e/0x410 [ 483.571127][ T2816] ? __kasan_check_write+0x14/0x20 [ 483.576251][ T2816] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 483.581830][ T2816] cgroup_subtree_control_write+0xd19/0x1310 [ 483.587807][ T2816] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 483.593871][ T2816] ? __kasan_check_write+0x14/0x20 [ 483.598965][ T2816] ? _copy_from_iter+0x3fb/0xd60 [ 483.603917][ T2816] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 483.610144][ T2816] cgroup_file_write+0x28e/0x590 [ 483.615721][ T2816] ? cgroup_seqfile_stop+0xc0/0xc0 [ 483.620927][ T2816] ? mutex_trylock+0x180/0x180 [ 483.625681][ T2816] ? __kasan_check_write+0x14/0x20 [ 483.630816][ T2816] kernfs_fop_write_iter+0x2d0/0x410 [ 483.636450][ T2816] ? cgroup_seqfile_stop+0xc0/0xc0 [ 483.641573][ T2816] vfs_write+0xc4a/0xf80 [ 483.645804][ T2816] ? slab_free_freelist_hook+0xcc/0x1a0 [ 483.651421][ T2816] ? kernel_write+0x420/0x420 [ 483.656225][ T2816] ? do_sys_openat2+0x397/0x470 [ 483.661257][ T2816] ? __kasan_check_read+0x11/0x20 [ 483.666771][ T2816] ? __fdget_pos+0x27e/0x310 [ 483.671729][ T2816] ksys_write+0x198/0x2c0 [ 483.676242][ T2816] ? __ia32_sys_read+0x90/0x90 [ 483.680994][ T2816] ? debug_smp_processor_id+0x17/0x20 [ 483.686481][ T2816] __x64_sys_write+0x7b/0x90 [ 483.691058][ T2816] do_syscall_64+0x34/0x70 [ 483.695475][ T2816] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 483.701362][ T2816] RIP: 0033:0x7f48883727a9 [ 483.705762][ T2816] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 483.725357][ T2816] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 483.733893][ T2816] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 483.741879][ T2816] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 483.749856][ T2816] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 483.757906][ T2816] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 483.765960][ T2816] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002a [ 483.774235][ T2816] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 483.817251][ T2818] FAULT_INJECTION: forcing a failure. [ 483.817251][ T2818] name failslab, interval 1, probability 0, space 0, times 0 [ 483.830154][ T2818] CPU: 0 PID: 2818 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 483.840649][ T2818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 483.850697][ T2818] Call Trace: [ 483.853982][ T2818] dump_stack_lvl+0x1e2/0x24b [ 483.858644][ T2818] ? panic+0x7d7/0x7d7 [ 483.862962][ T2818] ? bfq_pos_tree_add_move+0x43e/0x43e [ 483.868566][ T2818] ? selinux_kernfs_init_security+0x1a8/0x760 [ 483.874755][ T2818] dump_stack+0x15/0x17 [ 483.878899][ T2818] should_fail+0x3c0/0x510 [ 483.883299][ T2818] __should_failslab+0x9f/0xe0 [ 483.888210][ T2818] should_failslab+0x9/0x20 [ 483.892815][ T2818] kmem_cache_alloc+0x3f/0x300 [ 483.897591][ T2818] ? __kernfs_new_node+0xdb/0x6e0 [ 483.902614][ T2818] __kernfs_new_node+0xdb/0x6e0 [ 483.907470][ T2818] ? is_module_text_address+0xe1/0x140 [ 483.913043][ T2818] ? kernfs_new_node+0x170/0x170 [ 483.918136][ T2818] ? ptr_to_hashval+0x60/0x60 [ 483.922827][ T2818] ? arch_stack_walk+0xf8/0x140 [ 483.927725][ T2818] ? snprintf+0xd6/0x120 [ 483.931972][ T2818] kernfs_new_node+0x97/0x170 [ 483.936758][ T2818] __kernfs_create_file+0x4a/0x270 [ 483.941878][ T2818] cgroup_addrm_files+0xab8/0xfe0 [ 483.946902][ T2818] ? ____kasan_kmalloc+0xdc/0x110 [ 483.951925][ T2818] ? __kasan_kmalloc+0x9/0x10 [ 483.956607][ T2818] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 483.962143][ T2818] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 483.968744][ T2818] ? delete_node+0x759/0x7b0 [ 483.973334][ T2818] ? __kasan_check_read+0x11/0x20 [ 483.978340][ T2818] ? delete_node+0x759/0x7b0 [ 483.982910][ T2818] ? __kasan_check_write+0x14/0x20 [ 483.988017][ T2818] ? idr_replace+0x1c4/0x230 [ 483.992585][ T2818] ? idr_get_next+0x4b0/0x4b0 [ 483.997262][ T2818] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 484.002719][ T2818] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 484.008028][ T2818] css_populate_dir+0x137/0x370 [ 484.013105][ T2818] cgroup_apply_control_enable+0x8b9/0x12f0 [ 484.019125][ T2818] cgroup_apply_control+0x8e/0x7e0 [ 484.024249][ T2818] ? css_next_child+0x160/0x160 [ 484.029101][ T2818] ? stack_trace_save+0x12d/0x1f0 [ 484.034113][ T2818] ? io_schedule+0x120/0x120 [ 484.038688][ T2818] ? kernfs_fop_write_iter+0x15e/0x410 [ 484.044150][ T2818] ? __kasan_check_write+0x14/0x20 [ 484.049425][ T2818] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 484.054700][ T2818] cgroup_subtree_control_write+0xd19/0x1310 [ 484.060672][ T2818] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 484.066641][ T2818] ? __kasan_check_write+0x14/0x20 [ 484.071756][ T2818] ? _copy_from_iter+0x3fb/0xd60 [ 484.076700][ T2818] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 484.082689][ T2818] cgroup_file_write+0x28e/0x590 [ 484.087634][ T2818] ? cgroup_seqfile_stop+0xc0/0xc0 [ 484.092863][ T2818] ? mutex_trylock+0x180/0x180 [ 484.097752][ T2818] ? __kasan_check_write+0x14/0x20 [ 484.102891][ T2818] kernfs_fop_write_iter+0x2d0/0x410 [ 484.108178][ T2818] ? cgroup_seqfile_stop+0xc0/0xc0 [ 484.113308][ T2818] vfs_write+0xc4a/0xf80 [ 484.117669][ T2818] ? slab_free_freelist_hook+0xcc/0x1a0 [ 484.123319][ T2818] ? kernel_write+0x420/0x420 [ 484.127988][ T2818] ? do_sys_openat2+0x397/0x470 [ 484.132831][ T2818] ? __kasan_check_read+0x11/0x20 [ 484.138167][ T2818] ? __fdget_pos+0x27e/0x310 [ 484.143019][ T2818] ksys_write+0x198/0x2c0 [ 484.148578][ T2818] ? __ia32_sys_read+0x90/0x90 [ 484.153350][ T2818] ? debug_smp_processor_id+0x17/0x20 [ 484.158745][ T2818] __x64_sys_write+0x7b/0x90 [ 484.163333][ T2818] do_syscall_64+0x34/0x70 [ 484.167759][ T2818] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 484.173636][ T2818] RIP: 0033:0x7f48883727a9 [ 484.178034][ T2818] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 484.197903][ T2818] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 484.206305][ T2818] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 484.214639][ T2818] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 484.222639][ T2818] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 484.230737][ T2818] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 484.238964][ T2818] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001b [ 484.247122][ T2818] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 484.307303][ T2812] FAULT_INJECTION: forcing a failure. [ 484.307303][ T2812] name failslab, interval 1, probability 0, space 0, times 0 [ 484.320546][ T2812] CPU: 0 PID: 2812 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 484.331212][ T2812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 484.341465][ T2812] Call Trace: [ 484.344753][ T2812] dump_stack_lvl+0x1e2/0x24b [ 484.349509][ T2812] ? bfq_pos_tree_add_move+0x43e/0x43e [ 484.354977][ T2812] ? selinux_kernfs_init_security+0x1a8/0x760 [ 484.361187][ T2812] dump_stack+0x15/0x17 [ 484.365336][ T2812] should_fail+0x3c0/0x510 [ 484.369764][ T2812] ? __kernfs_new_node+0x99/0x6e0 [ 484.374887][ T2812] __should_failslab+0x9f/0xe0 [ 484.379647][ T2812] should_failslab+0x9/0x20 [ 484.384166][ T2812] __kmalloc_track_caller+0x5f/0x350 [ 484.389450][ T2812] kstrdup_const+0x55/0x90 [ 484.393871][ T2812] __kernfs_new_node+0x99/0x6e0 [ 484.398831][ T2812] ? is_module_text_address+0xe1/0x140 [ 484.404638][ T2812] ? kernfs_new_node+0x170/0x170 [ 484.409564][ T2812] ? ptr_to_hashval+0x60/0x60 [ 484.414246][ T2812] ? mutex_lock+0xb2/0x1e0 [ 484.418668][ T2812] ? snprintf+0xd6/0x120 [ 484.422904][ T2812] ? mutex_unlock+0x29/0xf0 [ 484.427606][ T2812] kernfs_new_node+0x97/0x170 [ 484.432291][ T2812] __kernfs_create_file+0x4a/0x270 [ 484.437392][ T2812] cgroup_addrm_files+0xab8/0xfe0 [ 484.442434][ T2812] ? ____kasan_kmalloc+0xdc/0x110 [ 484.447443][ T2812] ? __kasan_kmalloc+0x9/0x10 [ 484.452108][ T2812] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 484.457777][ T2812] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 484.463932][ T2812] ? delete_node+0x759/0x7b0 [ 484.468770][ T2812] ? __kasan_check_read+0x11/0x20 [ 484.474064][ T2812] ? idr_replace+0x1c4/0x230 [ 484.478763][ T2812] ? idr_get_next+0x4b0/0x4b0 [ 484.483442][ T2812] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 484.488703][ T2812] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 484.493913][ T2812] css_populate_dir+0x137/0x370 [ 484.498943][ T2812] cgroup_apply_control_enable+0x8b9/0x12f0 [ 484.504847][ T2812] cgroup_apply_control+0x8e/0x7e0 [ 484.510225][ T2812] ? css_next_child+0x160/0x160 [ 484.515245][ T2812] ? stack_trace_save+0x12d/0x1f0 [ 484.520710][ T2812] ? io_schedule+0x120/0x120 [ 484.525428][ T2812] ? kernfs_fop_write_iter+0x15e/0x410 [ 484.530904][ T2812] ? __kasan_check_write+0x14/0x20 [ 484.536019][ T2812] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 484.541301][ T2812] cgroup_subtree_control_write+0xd19/0x1310 [ 484.547573][ T2812] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 484.554019][ T2812] ? __kasan_check_write+0x14/0x20 [ 484.559128][ T2812] ? _copy_from_iter+0x3fb/0xd60 [ 484.564063][ T2812] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 484.570046][ T2812] cgroup_file_write+0x28e/0x590 [ 484.575143][ T2812] ? cgroup_seqfile_stop+0xc0/0xc0 [ 484.580347][ T2812] ? mutex_trylock+0x180/0x180 [ 484.585113][ T2812] ? __kasan_check_write+0x14/0x20 [ 484.590216][ T2812] kernfs_fop_write_iter+0x2d0/0x410 [ 484.595505][ T2812] ? cgroup_seqfile_stop+0xc0/0xc0 [ 484.600691][ T2812] vfs_write+0xc4a/0xf80 [ 484.604936][ T2812] ? slab_free_freelist_hook+0xcc/0x1a0 [ 484.610471][ T2812] ? kernel_write+0x420/0x420 [ 484.615136][ T2812] ? do_sys_openat2+0x397/0x470 [ 484.620147][ T2812] ? __kasan_check_read+0x11/0x20 [ 484.625256][ T2812] ? __fdget_pos+0x27e/0x310 [ 484.630110][ T2812] ksys_write+0x198/0x2c0 [ 484.634452][ T2812] ? __ia32_sys_read+0x90/0x90 [ 484.639236][ T2812] ? debug_smp_processor_id+0x17/0x20 [ 484.644806][ T2812] __x64_sys_write+0x7b/0x90 [ 484.649394][ T2812] do_syscall_64+0x34/0x70 [ 484.653886][ T2812] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 484.659768][ T2812] RIP: 0033:0x7f48883727a9 [ 484.664171][ T2812] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 484.684476][ T2812] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 484.693136][ T2812] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 484.701109][ T2812] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 484.709074][ T2812] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 484.717218][ T2812] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 484.725529][ T2812] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001c [ 484.733715][ T2812] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 484.777364][ T2821] FAULT_INJECTION: forcing a failure. [ 484.777364][ T2821] name failslab, interval 1, probability 0, space 0, times 0 [ 484.790178][ T2821] CPU: 0 PID: 2821 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 484.800785][ T2821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 484.810839][ T2821] Call Trace: [ 484.814316][ T2821] dump_stack_lvl+0x1e2/0x24b [ 484.819034][ T2821] ? bfq_pos_tree_add_move+0x43e/0x43e [ 484.824573][ T2821] ? selinux_kernfs_init_security+0x1a8/0x760 [ 484.830632][ T2821] dump_stack+0x15/0x17 [ 484.834904][ T2821] should_fail+0x3c0/0x510 [ 484.839317][ T2821] ? __kernfs_new_node+0x99/0x6e0 [ 484.844347][ T2821] __should_failslab+0x9f/0xe0 [ 484.849097][ T2821] should_failslab+0x9/0x20 [ 484.853600][ T2821] __kmalloc_track_caller+0x5f/0x350 [ 484.858910][ T2821] kstrdup_const+0x55/0x90 [ 484.863333][ T2821] __kernfs_new_node+0x99/0x6e0 [ 484.868181][ T2821] ? is_module_text_address+0xe1/0x140 [ 484.873628][ T2821] ? kernfs_new_node+0x170/0x170 [ 484.878669][ T2821] ? ptr_to_hashval+0x60/0x60 [ 484.883329][ T2821] ? mutex_lock+0xb2/0x1e0 [ 484.887728][ T2821] ? snprintf+0xd6/0x120 [ 484.891957][ T2821] ? mutex_unlock+0x29/0xf0 [ 484.896583][ T2821] kernfs_new_node+0x97/0x170 [ 484.901348][ T2821] __kernfs_create_file+0x4a/0x270 [ 484.906468][ T2821] cgroup_addrm_files+0xab8/0xfe0 [ 484.911630][ T2821] ? ____kasan_kmalloc+0xdc/0x110 [ 484.916715][ T2821] ? __kasan_kmalloc+0x9/0x10 [ 484.921408][ T2821] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 484.926947][ T2821] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 484.933309][ T2821] ? delete_node+0x759/0x7b0 [ 484.937899][ T2821] ? __kasan_check_read+0x11/0x20 [ 484.943007][ T2821] ? idr_replace+0x1c4/0x230 [ 484.947595][ T2821] ? idr_get_next+0x4b0/0x4b0 [ 484.952279][ T2821] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 484.957299][ T2821] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 484.962490][ T2821] css_populate_dir+0x137/0x370 [ 484.967430][ T2821] cgroup_apply_control_enable+0x8b9/0x12f0 [ 484.973315][ T2821] cgroup_apply_control+0x8e/0x7e0 [ 484.978527][ T2821] ? css_next_child+0x160/0x160 [ 484.983389][ T2821] ? stack_trace_save+0x12d/0x1f0 [ 484.988403][ T2821] ? io_schedule+0x120/0x120 [ 484.993074][ T2821] ? kernfs_fop_write_iter+0x15e/0x410 [ 484.998629][ T2821] ? __kasan_check_write+0x14/0x20 [ 485.003848][ T2821] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 485.009126][ T2821] cgroup_subtree_control_write+0xd19/0x1310 [ 485.015084][ T2821] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 485.021432][ T2821] ? __kasan_check_write+0x14/0x20 [ 485.026626][ T2821] ? _copy_from_iter+0x3fb/0xd60 [ 485.031548][ T2821] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 485.037513][ T2821] cgroup_file_write+0x28e/0x590 [ 485.042450][ T2821] ? cgroup_seqfile_stop+0xc0/0xc0 [ 485.047680][ T2821] ? mutex_trylock+0x180/0x180 [ 485.052427][ T2821] ? __kasan_check_write+0x14/0x20 [ 485.057516][ T2821] kernfs_fop_write_iter+0x2d0/0x410 [ 485.062965][ T2821] ? cgroup_seqfile_stop+0xc0/0xc0 [ 485.068074][ T2821] vfs_write+0xc4a/0xf80 [ 485.072314][ T2821] ? slab_free_freelist_hook+0xcc/0x1a0 [ 485.077870][ T2821] ? kernel_write+0x420/0x420 [ 485.082627][ T2821] ? do_sys_openat2+0x397/0x470 [ 485.087562][ T2821] ? __switch_to_asm+0x5a/0x80 [ 485.092319][ T2821] ? __kasan_check_read+0x11/0x20 [ 485.097738][ T2821] ? __fdget_pos+0x27e/0x310 [ 485.102411][ T2821] ksys_write+0x198/0x2c0 [ 485.106823][ T2821] ? __ia32_sys_read+0x90/0x90 [ 485.111573][ T2821] ? debug_smp_processor_id+0x17/0x20 [ 485.116954][ T2821] __x64_sys_write+0x7b/0x90 [ 485.121729][ T2821] do_syscall_64+0x34/0x70 [ 485.126313][ T2821] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 485.132221][ T2821] RIP: 0033:0x7f48883727a9 [ 485.137061][ T2821] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 485.157197][ T2821] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 485.165946][ T2821] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 485.173907][ T2821] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 485.182310][ T2821] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 485.190282][ T2821] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 485.198333][ T2821] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001d [ 485.206451][ T2821] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 485.247257][ T2817] FAULT_INJECTION: forcing a failure. [ 485.247257][ T2817] name failslab, interval 1, probability 0, space 0, times 0 [ 485.260090][ T2817] CPU: 1 PID: 2817 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 485.270674][ T2817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 485.280795][ T2817] Call Trace: [ 485.284162][ T2817] dump_stack_lvl+0x1e2/0x24b [ 485.288822][ T2817] ? bfq_pos_tree_add_move+0x43e/0x43e [ 485.294272][ T2817] ? selinux_kernfs_init_security+0x1a8/0x760 [ 485.300507][ T2817] dump_stack+0x15/0x17 [ 485.304661][ T2817] should_fail+0x3c0/0x510 [ 485.309248][ T2817] ? __kernfs_new_node+0x99/0x6e0 [ 485.314260][ T2817] __should_failslab+0x9f/0xe0 [ 485.319017][ T2817] should_failslab+0x9/0x20 [ 485.323607][ T2817] __kmalloc_track_caller+0x5f/0x350 [ 485.328907][ T2817] kstrdup_const+0x55/0x90 [ 485.333315][ T2817] __kernfs_new_node+0x99/0x6e0 [ 485.338156][ T2817] ? is_module_text_address+0xe1/0x140 [ 485.343758][ T2817] ? kernfs_new_node+0x170/0x170 [ 485.348695][ T2817] ? ptr_to_hashval+0x60/0x60 [ 485.353451][ T2817] ? mutex_lock+0xb2/0x1e0 [ 485.357962][ T2817] ? snprintf+0xd6/0x120 [ 485.362299][ T2817] ? mutex_unlock+0x29/0xf0 [ 485.366887][ T2817] kernfs_new_node+0x97/0x170 [ 485.371545][ T2817] __kernfs_create_file+0x4a/0x270 [ 485.376661][ T2817] cgroup_addrm_files+0xab8/0xfe0 [ 485.381672][ T2817] ? ____kasan_kmalloc+0xdc/0x110 [ 485.386711][ T2817] ? __kasan_kmalloc+0x9/0x10 [ 485.391520][ T2817] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 485.397072][ T2817] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 485.403257][ T2817] ? delete_node+0x759/0x7b0 [ 485.407840][ T2817] ? __kasan_check_read+0x11/0x20 [ 485.412944][ T2817] ? idr_replace+0x1c4/0x230 [ 485.417535][ T2817] ? idr_get_next+0x4b0/0x4b0 [ 485.422192][ T2817] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 485.427193][ T2817] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 485.432429][ T2817] css_populate_dir+0x137/0x370 [ 485.437439][ T2817] cgroup_apply_control_enable+0x8b9/0x12f0 [ 485.443319][ T2817] cgroup_apply_control+0x8e/0x7e0 [ 485.448438][ T2817] ? css_next_child+0x160/0x160 [ 485.453274][ T2817] ? stack_trace_save+0x12d/0x1f0 [ 485.458288][ T2817] ? io_schedule+0x120/0x120 [ 485.462883][ T2817] ? kernfs_fop_write_iter+0x15e/0x410 [ 485.468343][ T2817] ? __kasan_check_write+0x14/0x20 [ 485.473842][ T2817] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 485.479491][ T2817] cgroup_subtree_control_write+0xd19/0x1310 [ 485.485514][ T2817] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 485.491501][ T2817] ? __kasan_check_write+0x14/0x20 [ 485.496614][ T2817] ? _copy_from_iter+0x3fb/0xd60 [ 485.501556][ T2817] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 485.507713][ T2817] cgroup_file_write+0x28e/0x590 [ 485.512752][ T2817] ? cgroup_seqfile_stop+0xc0/0xc0 [ 485.518030][ T2817] ? mutex_trylock+0x180/0x180 [ 485.522965][ T2817] ? __kasan_check_write+0x14/0x20 [ 485.528062][ T2817] kernfs_fop_write_iter+0x2d0/0x410 [ 485.533366][ T2817] ? cgroup_seqfile_stop+0xc0/0xc0 [ 485.538475][ T2817] vfs_write+0xc4a/0xf80 [ 485.542706][ T2817] ? slab_free_freelist_hook+0xcc/0x1a0 [ 485.548255][ T2817] ? kernel_write+0x420/0x420 [ 485.552929][ T2817] ? do_sys_openat2+0x397/0x470 [ 485.558159][ T2817] ? __kasan_check_read+0x11/0x20 [ 485.563301][ T2817] ? __fdget_pos+0x27e/0x310 [ 485.567909][ T2817] ksys_write+0x198/0x2c0 [ 485.572249][ T2817] ? __ia32_sys_read+0x90/0x90 [ 485.577112][ T2817] ? debug_smp_processor_id+0x17/0x20 [ 485.582649][ T2817] __x64_sys_write+0x7b/0x90 [ 485.587414][ T2817] do_syscall_64+0x34/0x70 [ 485.591852][ T2817] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 485.597743][ T2817] RIP: 0033:0x7f48883727a9 [ 485.602253][ T2817] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 485.622727][ T2817] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 485.631184][ T2817] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 485.639164][ T2817] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 485.647191][ T2817] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 485.655271][ T2817] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 485.663251][ T2817] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000017 [ 485.671530][ T2817] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 485.707155][ T2813] FAULT_INJECTION: forcing a failure. [ 485.707155][ T2813] name failslab, interval 1, probability 0, space 0, times 0 [ 485.719893][ T2813] CPU: 0 PID: 2813 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 485.730288][ T2813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 485.740428][ T2813] Call Trace: [ 485.743711][ T2813] dump_stack_lvl+0x1e2/0x24b [ 485.748892][ T2813] ? bfq_pos_tree_add_move+0x43e/0x43e [ 485.754334][ T2813] ? selinux_kernfs_init_security+0x1a8/0x760 [ 485.760486][ T2813] dump_stack+0x15/0x17 [ 485.764671][ T2813] should_fail+0x3c0/0x510 [ 485.769104][ T2813] ? __kernfs_new_node+0x99/0x6e0 [ 485.774127][ T2813] __should_failslab+0x9f/0xe0 [ 485.779009][ T2813] should_failslab+0x9/0x20 [ 485.783728][ T2813] __kmalloc_track_caller+0x5f/0x350 [ 485.789012][ T2813] kstrdup_const+0x55/0x90 [ 485.793416][ T2813] __kernfs_new_node+0x99/0x6e0 [ 485.798290][ T2813] ? is_module_text_address+0xe1/0x140 [ 485.803744][ T2813] ? kernfs_new_node+0x170/0x170 [ 485.808672][ T2813] ? ptr_to_hashval+0x60/0x60 [ 485.813775][ T2813] ? arch_stack_walk+0xf8/0x140 [ 485.818618][ T2813] ? snprintf+0xd6/0x120 [ 485.822942][ T2813] kernfs_new_node+0x97/0x170 [ 485.827662][ T2813] __kernfs_create_file+0x4a/0x270 [ 485.832759][ T2813] cgroup_addrm_files+0xab8/0xfe0 [ 485.837766][ T2813] ? ____kasan_kmalloc+0xdc/0x110 [ 485.844473][ T2813] ? __kasan_kmalloc+0x9/0x10 [ 485.849220][ T2813] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 485.854757][ T2813] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 485.860958][ T2813] ? delete_node+0x759/0x7b0 [ 485.865535][ T2813] ? __kasan_check_read+0x11/0x20 [ 485.870551][ T2813] ? delete_node+0x759/0x7b0 [ 485.875129][ T2813] ? __kasan_check_write+0x14/0x20 [ 485.880219][ T2813] ? idr_replace+0x1c4/0x230 [ 485.885055][ T2813] ? idr_get_next+0x4b0/0x4b0 [ 485.889809][ T2813] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 485.894830][ T2813] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 485.900028][ T2813] css_populate_dir+0x137/0x370 [ 485.904879][ T2813] cgroup_apply_control_enable+0x8b9/0x12f0 [ 485.910772][ T2813] cgroup_apply_control+0x8e/0x7e0 [ 485.915863][ T2813] ? css_next_child+0x160/0x160 [ 485.920777][ T2813] ? stack_trace_save+0x12d/0x1f0 [ 485.925781][ T2813] ? io_schedule+0x120/0x120 [ 485.930473][ T2813] ? kernfs_fop_write_iter+0x15e/0x410 [ 485.936222][ T2813] ? __kasan_check_write+0x14/0x20 [ 485.941320][ T2813] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 485.946679][ T2813] cgroup_subtree_control_write+0xd19/0x1310 [ 485.952650][ T2813] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 485.958618][ T2813] ? __kasan_check_write+0x14/0x20 [ 485.963722][ T2813] ? _copy_from_iter+0x3fb/0xd60 [ 485.968671][ T2813] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 485.974633][ T2813] cgroup_file_write+0x28e/0x590 [ 485.979557][ T2813] ? cgroup_seqfile_stop+0xc0/0xc0 [ 485.984796][ T2813] ? mutex_trylock+0x180/0x180 [ 485.989551][ T2813] ? __kasan_check_write+0x14/0x20 [ 485.994652][ T2813] kernfs_fop_write_iter+0x2d0/0x410 [ 485.999927][ T2813] ? cgroup_seqfile_stop+0xc0/0xc0 [ 486.005070][ T2813] vfs_write+0xc4a/0xf80 [ 486.009311][ T2813] ? slab_free_freelist_hook+0xcc/0x1a0 [ 486.015355][ T2813] ? kernel_write+0x420/0x420 [ 486.020038][ T2813] ? do_sys_openat2+0x397/0x470 [ 486.024886][ T2813] ? __kasan_check_read+0x11/0x20 [ 486.029902][ T2813] ? __fdget_pos+0x27e/0x310 [ 486.034500][ T2813] ksys_write+0x198/0x2c0 [ 486.038850][ T2813] ? __ia32_sys_read+0x90/0x90 [ 486.043650][ T2813] ? debug_smp_processor_id+0x17/0x20 [ 486.049627][ T2813] __x64_sys_write+0x7b/0x90 [ 486.054312][ T2813] do_syscall_64+0x34/0x70 [ 486.058748][ T2813] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 486.064634][ T2813] RIP: 0033:0x7f48883727a9 [ 486.069050][ T2813] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 486.088671][ T2813] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 486.097071][ T2813] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 486.105112][ T2813] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 486.113083][ T2813] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 486.121039][ T2813] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 486.129033][ T2813] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001e [ 486.137237][ T2813] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 486.177141][ T2819] FAULT_INJECTION: forcing a failure. [ 486.177141][ T2819] name failslab, interval 1, probability 0, space 0, times 0 [ 486.190239][ T2819] CPU: 0 PID: 2819 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 486.200652][ T2819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 486.210868][ T2819] Call Trace: [ 486.214156][ T2819] dump_stack_lvl+0x1e2/0x24b [ 486.218833][ T2819] ? bfq_pos_tree_add_move+0x43e/0x43e [ 486.224298][ T2819] ? selinux_kernfs_init_security+0x1a8/0x760 [ 486.230592][ T2819] dump_stack+0x15/0x17 [ 486.235174][ T2819] should_fail+0x3c0/0x510 [ 486.239762][ T2819] ? __kernfs_new_node+0x99/0x6e0 [ 486.244779][ T2819] __should_failslab+0x9f/0xe0 [ 486.249560][ T2819] should_failslab+0x9/0x20 [ 486.254070][ T2819] __kmalloc_track_caller+0x5f/0x350 [ 486.259369][ T2819] kstrdup_const+0x55/0x90 [ 486.263780][ T2819] __kernfs_new_node+0x99/0x6e0 [ 486.268623][ T2819] ? is_module_text_address+0xe1/0x140 [ 486.274276][ T2819] ? kernfs_new_node+0x170/0x170 [ 486.279541][ T2819] ? ptr_to_hashval+0x60/0x60 [ 486.284196][ T2819] ? mutex_lock+0xb2/0x1e0 [ 486.288602][ T2819] ? snprintf+0xd6/0x120 [ 486.292883][ T2819] ? mutex_unlock+0x29/0xf0 [ 486.297683][ T2819] kernfs_new_node+0x97/0x170 [ 486.302390][ T2819] __kernfs_create_file+0x4a/0x270 [ 486.307500][ T2819] cgroup_addrm_files+0xab8/0xfe0 [ 486.312616][ T2819] ? ____kasan_kmalloc+0xdc/0x110 [ 486.317636][ T2819] ? __kasan_kmalloc+0x9/0x10 [ 486.322401][ T2819] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 486.328109][ T2819] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 486.334342][ T2819] ? delete_node+0x759/0x7b0 [ 486.339228][ T2819] ? __kasan_check_read+0x11/0x20 [ 486.344514][ T2819] ? idr_replace+0x1c4/0x230 [ 486.349089][ T2819] ? idr_get_next+0x4b0/0x4b0 [ 486.353744][ T2819] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 486.358766][ T2819] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 486.363958][ T2819] css_populate_dir+0x137/0x370 [ 486.368866][ T2819] cgroup_apply_control_enable+0x8b9/0x12f0 [ 486.374758][ T2819] cgroup_apply_control+0x8e/0x7e0 [ 486.379860][ T2819] ? css_next_child+0x160/0x160 [ 486.384789][ T2819] ? stack_trace_save+0x12d/0x1f0 [ 486.389806][ T2819] ? io_schedule+0x120/0x120 [ 486.394384][ T2819] ? kernfs_fop_write_iter+0x15e/0x410 [ 486.400349][ T2819] ? __kasan_check_write+0x14/0x20 [ 486.405531][ T2819] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 486.410811][ T2819] cgroup_subtree_control_write+0xd19/0x1310 [ 486.416787][ T2819] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 486.422753][ T2819] ? __kasan_check_write+0x14/0x20 [ 486.427850][ T2819] ? _copy_from_iter+0x3fb/0xd60 [ 486.432775][ T2819] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 486.438748][ T2819] cgroup_file_write+0x28e/0x590 [ 486.443666][ T2819] ? cgroup_seqfile_stop+0xc0/0xc0 [ 486.448856][ T2819] ? mutex_trylock+0x180/0x180 [ 486.453649][ T2819] ? __kasan_check_write+0x14/0x20 [ 486.458842][ T2819] kernfs_fop_write_iter+0x2d0/0x410 [ 486.464107][ T2819] ? cgroup_seqfile_stop+0xc0/0xc0 [ 486.469226][ T2819] vfs_write+0xc4a/0xf80 [ 486.473570][ T2819] ? slab_free_freelist_hook+0xcc/0x1a0 [ 486.479098][ T2819] ? kernel_write+0x420/0x420 [ 486.483752][ T2819] ? do_sys_openat2+0x397/0x470 [ 486.488602][ T2819] ? __kasan_check_read+0x11/0x20 [ 486.493622][ T2819] ? __fdget_pos+0x27e/0x310 [ 486.498308][ T2819] ksys_write+0x198/0x2c0 [ 486.502632][ T2819] ? __ia32_sys_read+0x90/0x90 [ 486.507382][ T2819] ? debug_smp_processor_id+0x17/0x20 [ 486.512757][ T2819] __x64_sys_write+0x7b/0x90 [ 486.517373][ T2819] do_syscall_64+0x34/0x70 [ 486.522105][ T2819] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 486.528091][ T2819] RIP: 0033:0x7f48883727a9 [ 486.532490][ T2819] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 486.552438][ T2819] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 486.561129][ T2819] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 486.569138][ T2819] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 486.577206][ T2819] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 486.585263][ T2819] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 486.593400][ T2819] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002b [ 486.601828][ T2819] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 486.687271][ T2822] FAULT_INJECTION: forcing a failure. [ 486.687271][ T2822] name failslab, interval 1, probability 0, space 0, times 0 [ 486.699962][ T2822] CPU: 0 PID: 2822 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 486.710476][ T2822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 486.720625][ T2822] Call Trace: [ 486.723932][ T2822] dump_stack_lvl+0x1e2/0x24b [ 486.728605][ T2822] ? panic+0x7d7/0x7d7 [ 486.732686][ T2822] ? bfq_pos_tree_add_move+0x43e/0x43e [ 486.738131][ T2822] ? selinux_kernfs_init_security+0x1a8/0x760 [ 486.744544][ T2822] dump_stack+0x15/0x17 [ 486.748707][ T2822] should_fail+0x3c0/0x510 [ 486.753232][ T2822] __should_failslab+0x9f/0xe0 [ 486.758071][ T2822] should_failslab+0x9/0x20 [ 486.762656][ T2822] kmem_cache_alloc+0x3f/0x300 [ 486.767403][ T2822] ? __kernfs_new_node+0xdb/0x6e0 [ 486.772595][ T2822] __kernfs_new_node+0xdb/0x6e0 [ 486.777427][ T2822] ? is_module_text_address+0xe1/0x140 [ 486.783063][ T2822] ? kernfs_new_node+0x170/0x170 [ 486.788107][ T2822] ? ptr_to_hashval+0x60/0x60 [ 486.792789][ T2822] ? arch_stack_walk+0xf8/0x140 [ 486.797759][ T2822] ? snprintf+0xd6/0x120 [ 486.801994][ T2822] kernfs_new_node+0x97/0x170 [ 486.806888][ T2822] __kernfs_create_file+0x4a/0x270 [ 486.812059][ T2822] cgroup_addrm_files+0xab8/0xfe0 [ 486.817090][ T2822] ? ____kasan_kmalloc+0xdc/0x110 [ 486.822220][ T2822] ? __kasan_kmalloc+0x9/0x10 [ 486.826914][ T2822] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 486.832532][ T2822] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 486.838768][ T2822] ? delete_node+0x759/0x7b0 [ 486.843356][ T2822] ? __kasan_check_read+0x11/0x20 [ 486.848646][ T2822] ? delete_node+0x759/0x7b0 [ 486.853331][ T2822] ? __kasan_check_write+0x14/0x20 [ 486.858557][ T2822] ? idr_replace+0x1c4/0x230 [ 486.863280][ T2822] ? idr_get_next+0x4b0/0x4b0 [ 486.867940][ T2822] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 486.872942][ T2822] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 486.878121][ T2822] css_populate_dir+0x137/0x370 [ 486.882969][ T2822] cgroup_apply_control_enable+0x8b9/0x12f0 [ 486.888856][ T2822] cgroup_apply_control+0x8e/0x7e0 [ 486.894121][ T2822] ? css_next_child+0x160/0x160 [ 486.899111][ T2822] ? stack_trace_save+0x12d/0x1f0 [ 486.904480][ T2822] ? io_schedule+0x120/0x120 [ 486.909056][ T2822] ? kernfs_fop_write_iter+0x15e/0x410 [ 486.914543][ T2822] ? __kasan_check_write+0x14/0x20 [ 486.919639][ T2822] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 486.924903][ T2822] cgroup_subtree_control_write+0xd19/0x1310 [ 486.931067][ T2822] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 486.937042][ T2822] ? __kasan_check_write+0x14/0x20 [ 486.942477][ T2822] ? _copy_from_iter+0x3fb/0xd60 [ 486.947402][ T2822] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 486.953478][ T2822] cgroup_file_write+0x28e/0x590 [ 486.958394][ T2822] ? cgroup_seqfile_stop+0xc0/0xc0 [ 486.963485][ T2822] ? mutex_trylock+0x180/0x180 [ 486.968237][ T2822] ? __kasan_check_write+0x14/0x20 [ 486.973348][ T2822] kernfs_fop_write_iter+0x2d0/0x410 [ 486.978617][ T2822] ? cgroup_seqfile_stop+0xc0/0xc0 [ 486.983901][ T2822] vfs_write+0xc4a/0xf80 [ 486.988177][ T2822] ? slab_free_freelist_hook+0xcc/0x1a0 [ 486.993718][ T2822] ? kernel_write+0x420/0x420 [ 486.998475][ T2822] ? do_sys_openat2+0x397/0x470 [ 487.003447][ T2822] ? __kasan_check_read+0x11/0x20 [ 487.008480][ T2822] ? __fdget_pos+0x27e/0x310 [ 487.013086][ T2822] ksys_write+0x198/0x2c0 [ 487.017410][ T2822] ? __ia32_sys_read+0x90/0x90 [ 487.022353][ T2822] ? debug_smp_processor_id+0x17/0x20 [ 487.027720][ T2822] __x64_sys_write+0x7b/0x90 [ 487.032371][ T2822] do_syscall_64+0x34/0x70 [ 487.036913][ T2822] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 487.042961][ T2822] RIP: 0033:0x7f48883727a9 [ 487.047377][ T2822] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 487.066979][ T2822] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 487.075807][ T2822] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 487.083852][ T2822] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 487.091906][ T2822] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 487.099867][ T2822] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 487.107905][ T2822] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001e [ 487.116005][ T2822] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 487.167045][ T2823] FAULT_INJECTION: forcing a failure. [ 487.167045][ T2823] name failslab, interval 1, probability 0, space 0, times 0 [ 487.180085][ T2823] CPU: 0 PID: 2823 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 487.191004][ T2823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 487.201223][ T2823] Call Trace: [ 487.204510][ T2823] dump_stack_lvl+0x1e2/0x24b [ 487.209173][ T2823] ? bfq_pos_tree_add_move+0x43e/0x43e [ 487.214760][ T2823] ? selinux_kernfs_init_security+0x1a8/0x760 [ 487.220839][ T2823] dump_stack+0x15/0x17 [ 487.225075][ T2823] should_fail+0x3c0/0x510 [ 487.229488][ T2823] ? __kernfs_new_node+0x99/0x6e0 [ 487.234510][ T2823] __should_failslab+0x9f/0xe0 [ 487.239341][ T2823] should_failslab+0x9/0x20 [ 487.243912][ T2823] __kmalloc_track_caller+0x5f/0x350 [ 487.249193][ T2823] kstrdup_const+0x55/0x90 [ 487.253601][ T2823] __kernfs_new_node+0x99/0x6e0 [ 487.258478][ T2823] ? is_module_text_address+0xe1/0x140 [ 487.264242][ T2823] ? kernfs_new_node+0x170/0x170 [ 487.269268][ T2823] ? ptr_to_hashval+0x60/0x60 [ 487.274027][ T2823] ? mutex_lock+0xb2/0x1e0 [ 487.278511][ T2823] ? snprintf+0xd6/0x120 [ 487.282728][ T2823] ? mutex_unlock+0x29/0xf0 [ 487.287205][ T2823] kernfs_new_node+0x97/0x170 [ 487.291890][ T2823] __kernfs_create_file+0x4a/0x270 [ 487.296990][ T2823] cgroup_addrm_files+0xab8/0xfe0 [ 487.302001][ T2823] ? ____kasan_kmalloc+0xdc/0x110 [ 487.307195][ T2823] ? __kasan_kmalloc+0x9/0x10 [ 487.312055][ T2823] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 487.317703][ T2823] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 487.324171][ T2823] ? delete_node+0x759/0x7b0 [ 487.328852][ T2823] ? __kasan_check_read+0x11/0x20 [ 487.333881][ T2823] ? idr_replace+0x1c4/0x230 [ 487.338667][ T2823] ? idr_get_next+0x4b0/0x4b0 [ 487.343432][ T2823] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 487.348518][ T2823] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 487.353705][ T2823] css_populate_dir+0x137/0x370 [ 487.358737][ T2823] cgroup_apply_control_enable+0x8b9/0x12f0 [ 487.364626][ T2823] cgroup_apply_control+0x8e/0x7e0 [ 487.369730][ T2823] ? css_next_child+0x160/0x160 [ 487.374579][ T2823] ? stack_trace_save+0x12d/0x1f0 [ 487.379590][ T2823] ? io_schedule+0x120/0x120 [ 487.384160][ T2823] ? kernfs_fop_write_iter+0x15e/0x410 [ 487.389627][ T2823] ? __kasan_check_write+0x14/0x20 [ 487.394727][ T2823] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 487.400009][ T2823] cgroup_subtree_control_write+0xd19/0x1310 [ 487.406075][ T2823] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 487.412050][ T2823] ? __kasan_check_write+0x14/0x20 [ 487.417436][ T2823] ? _copy_from_iter+0x3fb/0xd60 [ 487.422491][ T2823] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 487.428462][ T2823] cgroup_file_write+0x28e/0x590 [ 487.433393][ T2823] ? cgroup_seqfile_stop+0xc0/0xc0 [ 487.438499][ T2823] ? mutex_trylock+0x180/0x180 [ 487.443395][ T2823] ? __kasan_check_write+0x14/0x20 [ 487.448521][ T2823] kernfs_fop_write_iter+0x2d0/0x410 [ 487.453872][ T2823] ? cgroup_seqfile_stop+0xc0/0xc0 [ 487.458988][ T2823] vfs_write+0xc4a/0xf80 [ 487.463233][ T2823] ? slab_free_freelist_hook+0xcc/0x1a0 [ 487.469150][ T2823] ? kernel_write+0x420/0x420 [ 487.473819][ T2823] ? do_sys_openat2+0x397/0x470 [ 487.478680][ T2823] ? __kasan_check_read+0x11/0x20 [ 487.484042][ T2823] ? __fdget_pos+0x27e/0x310 [ 487.488937][ T2823] ksys_write+0x198/0x2c0 [ 487.493257][ T2823] ? __kasan_check_write+0x14/0x20 [ 487.498362][ T2823] ? __ia32_sys_read+0x90/0x90 [ 487.503126][ T2823] ? debug_smp_processor_id+0x17/0x20 [ 487.508820][ T2823] __x64_sys_write+0x7b/0x90 [ 487.513501][ T2823] do_syscall_64+0x34/0x70 [ 487.518404][ T2823] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 487.524297][ T2823] RIP: 0033:0x7f48883727a9 [ 487.528782][ T2823] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 487.548897][ T2823] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 487.557417][ T2823] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 487.565390][ T2823] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 487.573366][ T2823] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 487.581334][ T2823] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 487.589375][ T2823] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000018 [ 487.597475][ T2823] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 487.637268][ T2814] FAULT_INJECTION: forcing a failure. [ 487.637268][ T2814] name failslab, interval 1, probability 0, space 0, times 0 [ 487.650010][ T2814] CPU: 1 PID: 2814 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 487.660515][ T2814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 487.670577][ T2814] Call Trace: [ 487.673872][ T2814] dump_stack_lvl+0x1e2/0x24b [ 487.678539][ T2814] ? bfq_pos_tree_add_move+0x43e/0x43e [ 487.684095][ T2814] ? selinux_kernfs_init_security+0x1a8/0x760 [ 487.690285][ T2814] dump_stack+0x15/0x17 [ 487.694432][ T2814] should_fail+0x3c0/0x510 [ 487.698833][ T2814] ? __kernfs_new_node+0x99/0x6e0 [ 487.703841][ T2814] __should_failslab+0x9f/0xe0 [ 487.708697][ T2814] should_failslab+0x9/0x20 [ 487.713224][ T2814] __kmalloc_track_caller+0x5f/0x350 [ 487.718486][ T2814] kstrdup_const+0x55/0x90 [ 487.722882][ T2814] __kernfs_new_node+0x99/0x6e0 [ 487.727754][ T2814] ? is_module_text_address+0xe1/0x140 [ 487.733189][ T2814] ? kernfs_new_node+0x170/0x170 [ 487.738102][ T2814] ? ptr_to_hashval+0x60/0x60 [ 487.742753][ T2814] ? mutex_lock+0xb2/0x1e0 [ 487.747166][ T2814] ? snprintf+0xd6/0x120 [ 487.751438][ T2814] ? mutex_unlock+0x29/0xf0 [ 487.755918][ T2814] kernfs_new_node+0x97/0x170 [ 487.760667][ T2814] __kernfs_create_file+0x4a/0x270 [ 487.765842][ T2814] cgroup_addrm_files+0xab8/0xfe0 [ 487.770861][ T2814] ? ____kasan_kmalloc+0xdc/0x110 [ 487.775873][ T2814] ? __kasan_kmalloc+0x9/0x10 [ 487.780614][ T2814] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 487.786149][ T2814] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 487.792361][ T2814] ? delete_node+0x759/0x7b0 [ 487.796938][ T2814] ? __kasan_check_read+0x11/0x20 [ 487.801940][ T2814] ? idr_replace+0x1c4/0x230 [ 487.806504][ T2814] ? idr_get_next+0x4b0/0x4b0 [ 487.811169][ T2814] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 487.816172][ T2814] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 487.821432][ T2814] css_populate_dir+0x137/0x370 [ 487.826279][ T2814] cgroup_apply_control_enable+0x8b9/0x12f0 [ 487.832150][ T2814] cgroup_apply_control+0x8e/0x7e0 [ 487.837328][ T2814] ? css_next_child+0x160/0x160 [ 487.842251][ T2814] ? io_schedule+0x120/0x120 [ 487.847176][ T2814] ? kernfs_fop_write_iter+0x15e/0x410 [ 487.852613][ T2814] ? __kasan_check_write+0x14/0x20 [ 487.857964][ T2814] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 487.863277][ T2814] cgroup_subtree_control_write+0xd19/0x1310 [ 487.869432][ T2814] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 487.875498][ T2814] ? __kasan_check_write+0x14/0x20 [ 487.880760][ T2814] ? _copy_from_iter+0x3fb/0xd60 [ 487.885675][ T2814] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 487.891641][ T2814] cgroup_file_write+0x28e/0x590 [ 487.896568][ T2814] ? cgroup_seqfile_stop+0xc0/0xc0 [ 487.901656][ T2814] ? mutex_trylock+0x180/0x180 [ 487.906397][ T2814] ? __kasan_check_write+0x14/0x20 [ 487.911596][ T2814] kernfs_fop_write_iter+0x2d0/0x410 [ 487.916861][ T2814] ? cgroup_seqfile_stop+0xc0/0xc0 [ 487.921957][ T2814] vfs_write+0xc4a/0xf80 [ 487.926191][ T2814] ? kernel_write+0x420/0x420 [ 487.930936][ T2814] ? do_sys_openat2+0x397/0x470 [ 487.935775][ T2814] ? __kasan_check_read+0x11/0x20 [ 487.940865][ T2814] ? __fdget_pos+0x27e/0x310 [ 487.945444][ T2814] ksys_write+0x198/0x2c0 [ 487.949752][ T2814] ? __ia32_sys_read+0x90/0x90 [ 487.954494][ T2814] ? debug_smp_processor_id+0x17/0x20 [ 487.959840][ T2814] __x64_sys_write+0x7b/0x90 [ 487.964417][ T2814] do_syscall_64+0x34/0x70 [ 487.968821][ T2814] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 487.974703][ T2814] RIP: 0033:0x7f48883727a9 [ 487.979096][ T2814] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 487.998873][ T2814] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 488.007273][ T2814] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 488.015221][ T2814] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 488.023175][ T2814] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 488.031210][ T2814] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 488.039167][ T2814] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001b [ 488.047496][ T2814] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 488.077042][ T2826] FAULT_INJECTION: forcing a failure. [ 488.077042][ T2826] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 488.090488][ T2826] CPU: 1 PID: 2826 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 488.100979][ T2826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 488.111032][ T2826] Call Trace: [ 488.114505][ T2826] dump_stack_lvl+0x1e2/0x24b [ 488.119359][ T2826] ? bfq_pos_tree_add_move+0x43e/0x43e [ 488.124842][ T2826] ? stack_trace_save+0x12d/0x1f0 [ 488.129861][ T2826] dump_stack+0x15/0x17 [ 488.134111][ T2826] should_fail+0x3c0/0x510 [ 488.138798][ T2826] should_fail_alloc_page+0x50/0x60 [ 488.144171][ T2826] __alloc_pages_nodemask+0x1c0/0x890 [ 488.149827][ T2826] ? __kasan_check_write+0x14/0x20 [ 488.155112][ T2826] ? delete_node+0x759/0x7b0 [ 488.160170][ T2826] ? mutex_trylock+0x180/0x180 [ 488.165012][ T2826] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 488.170690][ T2826] ? kernfs_xattr_get+0x80/0x90 [ 488.175543][ T2826] ? selinux_kernfs_init_security+0x1a8/0x760 [ 488.181598][ T2826] allocate_slab+0x78/0x540 [ 488.186170][ T2826] ___slab_alloc+0x131/0x2e0 [ 488.190737][ T2826] ? __kernfs_new_node+0xdb/0x6e0 [ 488.195826][ T2826] __slab_alloc+0x63/0xa0 [ 488.200233][ T2826] ? __kernfs_new_node+0xdb/0x6e0 [ 488.205251][ T2826] kmem_cache_alloc+0x1ef/0x300 [ 488.210174][ T2826] ? __kernfs_new_node+0xdb/0x6e0 [ 488.215275][ T2826] __kernfs_new_node+0xdb/0x6e0 [ 488.220112][ T2826] ? is_module_text_address+0xe1/0x140 [ 488.225638][ T2826] ? kernfs_new_node+0x170/0x170 [ 488.230560][ T2826] ? ptr_to_hashval+0x60/0x60 [ 488.235212][ T2826] ? arch_stack_walk+0xf8/0x140 [ 488.240084][ T2826] ? snprintf+0xd6/0x120 [ 488.244348][ T2826] kernfs_new_node+0x97/0x170 [ 488.249123][ T2826] __kernfs_create_file+0x4a/0x270 [ 488.254308][ T2826] cgroup_addrm_files+0xab8/0xfe0 [ 488.259408][ T2826] ? ____kasan_kmalloc+0xdc/0x110 [ 488.264413][ T2826] ? __kasan_kmalloc+0x9/0x10 [ 488.269187][ T2826] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 488.274985][ T2826] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 488.281183][ T2826] ? delete_node+0x759/0x7b0 [ 488.285767][ T2826] ? __kasan_check_read+0x11/0x20 [ 488.290874][ T2826] ? delete_node+0x759/0x7b0 [ 488.295555][ T2826] ? __kasan_check_write+0x14/0x20 [ 488.300649][ T2826] ? idr_replace+0x1c4/0x230 [ 488.305219][ T2826] ? idr_get_next+0x4b0/0x4b0 [ 488.309890][ T2826] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 488.314898][ T2826] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 488.320076][ T2826] css_populate_dir+0x137/0x370 [ 488.324927][ T2826] cgroup_apply_control_enable+0x8b9/0x12f0 [ 488.330805][ T2826] cgroup_apply_control+0x8e/0x7e0 [ 488.335898][ T2826] ? css_next_child+0x160/0x160 [ 488.340743][ T2826] ? io_schedule+0x120/0x120 [ 488.345509][ T2826] ? kernfs_fop_write_iter+0x15e/0x410 [ 488.351226][ T2826] ? __kasan_check_write+0x14/0x20 [ 488.356595][ T2826] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 488.361869][ T2826] cgroup_subtree_control_write+0xd19/0x1310 [ 488.367837][ T2826] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 488.373823][ T2826] ? __kasan_check_write+0x14/0x20 [ 488.379292][ T2826] ? _copy_from_iter+0x3fb/0xd60 [ 488.384324][ T2826] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 488.390444][ T2826] cgroup_file_write+0x28e/0x590 [ 488.395469][ T2826] ? cgroup_seqfile_stop+0xc0/0xc0 [ 488.400568][ T2826] ? mutex_trylock+0x180/0x180 [ 488.405315][ T2826] ? __kasan_check_write+0x14/0x20 [ 488.410504][ T2826] kernfs_fop_write_iter+0x2d0/0x410 [ 488.415855][ T2826] ? cgroup_seqfile_stop+0xc0/0xc0 [ 488.420985][ T2826] vfs_write+0xc4a/0xf80 [ 488.425661][ T2826] ? kernel_write+0x420/0x420 [ 488.430335][ T2826] ? do_sys_openat2+0x397/0x470 [ 488.435189][ T2826] ? __kasan_check_read+0x11/0x20 [ 488.440199][ T2826] ? __fdget_pos+0x27e/0x310 [ 488.444862][ T2826] ksys_write+0x198/0x2c0 [ 488.449188][ T2826] ? __ia32_sys_read+0x90/0x90 [ 488.453933][ T2826] ? debug_smp_processor_id+0x17/0x20 [ 488.459286][ T2826] __x64_sys_write+0x7b/0x90 [ 488.463854][ T2826] do_syscall_64+0x34/0x70 [ 488.468353][ T2826] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 488.474300][ T2826] RIP: 0033:0x7f48883727a9 [ 488.478732][ T2826] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 488.498513][ T2826] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 488.507009][ T2826] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 488.515668][ T2826] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 488.523642][ T2826] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 488.531632][ T2826] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 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 [ 488.539599][ T2826] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001f [ 488.597515][ T2828] FAULT_INJECTION: forcing a failure. [ 488.597515][ T2828] name failslab, interval 1, probability 0, space 0, times 0 [ 488.610319][ T2828] CPU: 1 PID: 2828 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 488.620831][ T2828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 488.632368][ T2828] Call Trace: [ 488.635660][ T2828] dump_stack_lvl+0x1e2/0x24b [ 488.640320][ T2828] ? bfq_pos_tree_add_move+0x43e/0x43e [ 488.645854][ T2828] ? selinux_kernfs_init_security+0x1a8/0x760 [ 488.651962][ T2828] dump_stack+0x15/0x17 [ 488.656099][ T2828] should_fail+0x3c0/0x510 [ 488.660489][ T2828] ? __kernfs_new_node+0x99/0x6e0 [ 488.665490][ T2828] __should_failslab+0x9f/0xe0 [ 488.670230][ T2828] should_failslab+0x9/0x20 [ 488.674713][ T2828] __kmalloc_track_caller+0x5f/0x350 [ 488.679973][ T2828] kstrdup_const+0x55/0x90 [ 488.684453][ T2828] __kernfs_new_node+0x99/0x6e0 [ 488.689283][ T2828] ? is_module_text_address+0xe1/0x140 [ 488.694716][ T2828] ? kernfs_new_node+0x170/0x170 [ 488.699640][ T2828] ? ptr_to_hashval+0x60/0x60 [ 488.704292][ T2828] ? mutex_lock+0xb2/0x1e0 [ 488.708689][ T2828] ? snprintf+0xd6/0x120 [ 488.712921][ T2828] ? mutex_unlock+0x29/0xf0 [ 488.717422][ T2828] kernfs_new_node+0x97/0x170 [ 488.722077][ T2828] __kernfs_create_file+0x4a/0x270 [ 488.727252][ T2828] cgroup_addrm_files+0xab8/0xfe0 [ 488.732622][ T2828] ? ____kasan_kmalloc+0xdc/0x110 [ 488.737632][ T2828] ? __kasan_kmalloc+0x9/0x10 [ 488.742294][ T2828] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 488.748000][ T2828] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 488.754127][ T2828] ? delete_node+0x759/0x7b0 [ 488.758693][ T2828] ? __kasan_check_read+0x11/0x20 [ 488.763709][ T2828] ? idr_replace+0x1c4/0x230 [ 488.768280][ T2828] ? idr_get_next+0x4b0/0x4b0 [ 488.772960][ T2828] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 488.777961][ T2828] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 488.783133][ T2828] css_populate_dir+0x137/0x370 [ 488.787964][ T2828] cgroup_apply_control_enable+0x8b9/0x12f0 [ 488.794046][ T2828] cgroup_apply_control+0x8e/0x7e0 [ 488.799137][ T2828] ? css_next_child+0x160/0x160 [ 488.803962][ T2828] ? stack_trace_save+0x12d/0x1f0 [ 488.808962][ T2828] ? io_schedule+0x120/0x120 [ 488.813528][ T2828] ? kernfs_fop_write_iter+0x15e/0x410 [ 488.818972][ T2828] ? __kasan_check_write+0x14/0x20 [ 488.824058][ T2828] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 488.829322][ T2828] cgroup_subtree_control_write+0xd19/0x1310 [ 488.835285][ T2828] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 488.841241][ T2828] ? __kasan_check_write+0x14/0x20 [ 488.846328][ T2828] ? _copy_from_iter+0x3fb/0xd60 [ 488.851243][ T2828] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 488.857199][ T2828] cgroup_file_write+0x28e/0x590 [ 488.862118][ T2828] ? cgroup_seqfile_stop+0xc0/0xc0 [ 488.867205][ T2828] ? mutex_trylock+0x180/0x180 [ 488.871958][ T2828] ? __kasan_check_write+0x14/0x20 [ 488.877051][ T2828] kernfs_fop_write_iter+0x2d0/0x410 [ 488.882347][ T2828] ? cgroup_seqfile_stop+0xc0/0xc0 [ 488.887440][ T2828] vfs_write+0xc4a/0xf80 [ 488.891676][ T2828] ? slab_free_freelist_hook+0xcc/0x1a0 [ 488.897222][ T2828] ? kernel_write+0x420/0x420 [ 488.901964][ T2828] ? do_sys_openat2+0x397/0x470 [ 488.906802][ T2828] ? __kasan_check_read+0x11/0x20 [ 488.911804][ T2828] ? __fdget_pos+0x27e/0x310 [ 488.916385][ T2828] ksys_write+0x198/0x2c0 [ 488.920905][ T2828] ? __ia32_sys_read+0x90/0x90 [ 488.925683][ T2828] ? debug_smp_processor_id+0x17/0x20 [ 488.931054][ T2828] __x64_sys_write+0x7b/0x90 [ 488.935624][ T2828] do_syscall_64+0x34/0x70 [ 488.940156][ T2828] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 488.946097][ T2828] RIP: 0033:0x7f48883727a9 [ 488.950608][ T2828] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 488.970328][ T2828] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 488.978749][ T2828] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 488.986718][ T2828] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 488.995320][ T2828] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 489.003279][ T2828] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 489.011232][ T2828] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001c [ 489.019733][ T2828] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 489.067154][ T2827] FAULT_INJECTION: forcing a failure. [ 489.067154][ T2827] name failslab, interval 1, probability 0, space 0, times 0 [ 489.080085][ T2827] CPU: 0 PID: 2827 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 489.090669][ T2827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 489.100717][ T2827] Call Trace: [ 489.104024][ T2827] dump_stack_lvl+0x1e2/0x24b [ 489.108686][ T2827] ? bfq_pos_tree_add_move+0x43e/0x43e [ 489.114129][ T2827] ? selinux_kernfs_init_security+0x1a8/0x760 [ 489.120505][ T2827] dump_stack+0x15/0x17 [ 489.124649][ T2827] should_fail+0x3c0/0x510 [ 489.129055][ T2827] ? __kernfs_new_node+0x99/0x6e0 [ 489.134147][ T2827] __should_failslab+0x9f/0xe0 [ 489.138998][ T2827] should_failslab+0x9/0x20 [ 489.143622][ T2827] __kmalloc_track_caller+0x5f/0x350 [ 489.148898][ T2827] kstrdup_const+0x55/0x90 [ 489.153398][ T2827] __kernfs_new_node+0x99/0x6e0 [ 489.158260][ T2827] ? is_module_text_address+0xe1/0x140 [ 489.163700][ T2827] ? kernfs_new_node+0x170/0x170 [ 489.168625][ T2827] ? ptr_to_hashval+0x60/0x60 [ 489.173351][ T2827] ? mutex_lock+0xb2/0x1e0 [ 489.178195][ T2827] ? snprintf+0xd6/0x120 [ 489.182433][ T2827] ? mutex_unlock+0x29/0xf0 [ 489.187086][ T2827] kernfs_new_node+0x97/0x170 [ 489.191929][ T2827] __kernfs_create_file+0x4a/0x270 [ 489.197049][ T2827] cgroup_addrm_files+0xab8/0xfe0 [ 489.202193][ T2827] ? ____kasan_kmalloc+0xdc/0x110 [ 489.207560][ T2827] ? __kasan_kmalloc+0x9/0x10 [ 489.212813][ T2827] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 489.218552][ T2827] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 489.224755][ T2827] ? delete_node+0x759/0x7b0 [ 489.229464][ T2827] ? __kasan_check_read+0x11/0x20 [ 489.234588][ T2827] ? idr_replace+0x1c4/0x230 [ 489.239387][ T2827] ? idr_get_next+0x4b0/0x4b0 [ 489.244411][ T2827] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 489.249436][ T2827] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 489.254633][ T2827] css_populate_dir+0x137/0x370 [ 489.259689][ T2827] cgroup_apply_control_enable+0x8b9/0x12f0 [ 489.265568][ T2827] cgroup_apply_control+0x8e/0x7e0 [ 489.270917][ T2827] ? css_next_child+0x160/0x160 [ 489.275795][ T2827] ? stack_trace_save+0x12d/0x1f0 [ 489.280835][ T2827] ? io_schedule+0x120/0x120 [ 489.285847][ T2827] ? kernfs_fop_write_iter+0x15e/0x410 [ 489.291352][ T2827] ? __kasan_check_write+0x14/0x20 [ 489.296474][ T2827] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 489.301849][ T2827] cgroup_subtree_control_write+0xd19/0x1310 [ 489.307908][ T2827] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 489.313973][ T2827] ? __kasan_check_write+0x14/0x20 [ 489.319153][ T2827] ? _copy_from_iter+0x3fb/0xd60 [ 489.324081][ T2827] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 489.330132][ T2827] cgroup_file_write+0x28e/0x590 [ 489.335066][ T2827] ? cgroup_seqfile_stop+0xc0/0xc0 [ 489.340168][ T2827] ? mutex_trylock+0x180/0x180 [ 489.345031][ T2827] ? __kasan_check_write+0x14/0x20 [ 489.350128][ T2827] kernfs_fop_write_iter+0x2d0/0x410 [ 489.355391][ T2827] ? cgroup_seqfile_stop+0xc0/0xc0 [ 489.360484][ T2827] vfs_write+0xc4a/0xf80 [ 489.364798][ T2827] ? slab_free_freelist_hook+0xcc/0x1a0 [ 489.370328][ T2827] ? kernel_write+0x420/0x420 [ 489.375257][ T2827] ? do_sys_openat2+0x397/0x470 [ 489.380120][ T2827] ? __kasan_check_read+0x11/0x20 [ 489.385137][ T2827] ? __fdget_pos+0x27e/0x310 [ 489.389732][ T2827] ksys_write+0x198/0x2c0 [ 489.394044][ T2827] ? __ia32_sys_read+0x90/0x90 [ 489.398794][ T2827] ? debug_smp_processor_id+0x17/0x20 [ 489.404160][ T2827] __x64_sys_write+0x7b/0x90 [ 489.408753][ T2827] do_syscall_64+0x34/0x70 [ 489.413167][ T2827] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 489.419231][ T2827] RIP: 0033:0x7f48883727a9 [ 489.423632][ T2827] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 489.443710][ T2827] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 489.452241][ T2827] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 489.460201][ T2827] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 489.468176][ T2827] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 489.476462][ T2827] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 489.484738][ T2827] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000019 [ 489.493054][ T2827] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 489.527226][ T2829] FAULT_INJECTION: forcing a failure. [ 489.527226][ T2829] name failslab, interval 1, probability 0, space 0, times 0 [ 489.540176][ T2829] CPU: 1 PID: 2829 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 489.550588][ T2829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 489.560786][ T2829] Call Trace: [ 489.564080][ T2829] dump_stack_lvl+0x1e2/0x24b [ 489.568746][ T2829] ? panic+0x7d7/0x7d7 [ 489.572797][ T2829] ? bfq_pos_tree_add_move+0x43e/0x43e [ 489.578240][ T2829] ? selinux_kernfs_init_security+0x1a8/0x760 [ 489.584287][ T2829] dump_stack+0x15/0x17 [ 489.588424][ T2829] should_fail+0x3c0/0x510 [ 489.593117][ T2829] __should_failslab+0x9f/0xe0 [ 489.597983][ T2829] should_failslab+0x9/0x20 [ 489.602557][ T2829] kmem_cache_alloc+0x3f/0x300 [ 489.607397][ T2829] ? __kernfs_new_node+0xdb/0x6e0 [ 489.612436][ T2829] __kernfs_new_node+0xdb/0x6e0 [ 489.617304][ T2829] ? is_module_text_address+0xe1/0x140 [ 489.622745][ T2829] ? kernfs_new_node+0x170/0x170 [ 489.627799][ T2829] ? ptr_to_hashval+0x60/0x60 [ 489.632496][ T2829] ? arch_stack_walk+0xf8/0x140 [ 489.637496][ T2829] ? snprintf+0xd6/0x120 [ 489.641735][ T2829] kernfs_new_node+0x97/0x170 [ 489.646397][ T2829] __kernfs_create_file+0x4a/0x270 [ 489.651526][ T2829] cgroup_addrm_files+0xab8/0xfe0 [ 489.656545][ T2829] ? ____kasan_kmalloc+0xdc/0x110 [ 489.661705][ T2829] ? __kasan_kmalloc+0x9/0x10 [ 489.666456][ T2829] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 489.672007][ T2829] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 489.678171][ T2829] ? delete_node+0x759/0x7b0 [ 489.682780][ T2829] ? __kasan_check_read+0x11/0x20 [ 489.688075][ T2829] ? delete_node+0x759/0x7b0 [ 489.692657][ T2829] ? __kasan_check_write+0x14/0x20 [ 489.697770][ T2829] ? idr_replace+0x1c4/0x230 [ 489.702344][ T2829] ? idr_get_next+0x4b0/0x4b0 [ 489.707025][ T2829] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 489.712057][ T2829] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 489.717237][ T2829] css_populate_dir+0x137/0x370 [ 489.722071][ T2829] cgroup_apply_control_enable+0x8b9/0x12f0 [ 489.728030][ T2829] cgroup_apply_control+0x8e/0x7e0 [ 489.733172][ T2829] ? css_next_child+0x160/0x160 [ 489.738562][ T2829] ? stack_trace_save+0x12d/0x1f0 [ 489.743769][ T2829] ? io_schedule+0x120/0x120 [ 489.748342][ T2829] ? kernfs_fop_write_iter+0x15e/0x410 [ 489.754060][ T2829] ? __kasan_check_write+0x14/0x20 [ 489.759184][ T2829] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 489.764463][ T2829] cgroup_subtree_control_write+0xd19/0x1310 [ 489.770425][ T2829] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 489.776388][ T2829] ? __kasan_check_write+0x14/0x20 [ 489.781478][ T2829] ? _copy_from_iter+0x3fb/0xd60 [ 489.786482][ T2829] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 489.792440][ T2829] cgroup_file_write+0x28e/0x590 [ 489.797361][ T2829] ? cgroup_seqfile_stop+0xc0/0xc0 [ 489.802452][ T2829] ? mutex_trylock+0x180/0x180 [ 489.807200][ T2829] ? __kasan_check_write+0x14/0x20 [ 489.812298][ T2829] kernfs_fop_write_iter+0x2d0/0x410 [ 489.817579][ T2829] ? cgroup_seqfile_stop+0xc0/0xc0 [ 489.822669][ T2829] vfs_write+0xc4a/0xf80 [ 489.826889][ T2829] ? slab_free_freelist_hook+0xcc/0x1a0 [ 489.832413][ T2829] ? kernel_write+0x420/0x420 [ 489.837156][ T2829] ? do_sys_openat2+0x397/0x470 [ 489.842080][ T2829] ? __kasan_check_read+0x11/0x20 [ 489.847090][ T2829] ? __fdget_pos+0x27e/0x310 [ 489.851769][ T2829] ksys_write+0x198/0x2c0 [ 489.856096][ T2829] ? __ia32_sys_read+0x90/0x90 [ 489.860845][ T2829] ? debug_smp_processor_id+0x17/0x20 [ 489.866196][ T2829] __x64_sys_write+0x7b/0x90 [ 489.870784][ T2829] do_syscall_64+0x34/0x70 [ 489.875271][ T2829] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 489.881159][ T2829] RIP: 0033:0x7f48883727a9 [ 489.885587][ T2829] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 489.905186][ T2829] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 489.913695][ T2829] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 489.922391][ T2829] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 489.930457][ T2829] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 489.938482][ T2829] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 489.946494][ T2829] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000020 [ 489.954763][ T2829] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 489.997232][ T2832] FAULT_INJECTION: forcing a failure. [ 489.997232][ T2832] name failslab, interval 1, probability 0, space 0, times 0 [ 490.009879][ T2832] CPU: 1 PID: 2832 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 490.020358][ T2832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 490.030624][ T2832] Call Trace: [ 490.033932][ T2832] dump_stack_lvl+0x1e2/0x24b [ 490.039257][ T2832] ? bfq_pos_tree_add_move+0x43e/0x43e [ 490.044850][ T2832] dump_stack+0x15/0x17 [ 490.049481][ T2832] should_fail+0x3c0/0x510 [ 490.053897][ T2832] ? __kernfs_new_node+0x99/0x6e0 [ 490.058920][ T2832] __should_failslab+0x9f/0xe0 [ 490.063858][ T2832] should_failslab+0x9/0x20 [ 490.068453][ T2832] __kmalloc_track_caller+0x5f/0x350 [ 490.073920][ T2832] kstrdup_const+0x55/0x90 [ 490.078330][ T2832] __kernfs_new_node+0x99/0x6e0 [ 490.083304][ T2832] ? is_module_text_address+0xe1/0x140 [ 490.090544][ T2832] ? kernfs_new_node+0x170/0x170 [ 490.095770][ T2832] ? ptr_to_hashval+0x60/0x60 [ 490.100889][ T2832] ? mutex_lock+0xb2/0x1e0 [ 490.105416][ T2832] ? snprintf+0xd6/0x120 [ 490.109647][ T2832] ? mutex_unlock+0x29/0xf0 [ 490.114289][ T2832] kernfs_new_node+0x97/0x170 [ 490.119251][ T2832] __kernfs_create_file+0x4a/0x270 [ 490.124394][ T2832] cgroup_addrm_files+0xab8/0xfe0 [ 490.129428][ T2832] ? ____kasan_kmalloc+0xdc/0x110 [ 490.135239][ T2832] ? __kasan_kmalloc+0x9/0x10 [ 490.140048][ T2832] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 490.145587][ T2832] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 490.151762][ T2832] ? delete_node+0x759/0x7b0 [ 490.156426][ T2832] ? __kasan_check_read+0x11/0x20 [ 490.161442][ T2832] ? idr_replace+0x1c4/0x230 [ 490.166017][ T2832] ? idr_get_next+0x4b0/0x4b0 [ 490.170703][ T2832] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 490.175821][ T2832] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 490.181330][ T2832] css_populate_dir+0x137/0x370 [ 490.186217][ T2832] cgroup_apply_control_enable+0x8b9/0x12f0 [ 490.192126][ T2832] cgroup_apply_control+0x8e/0x7e0 [ 490.197416][ T2832] ? css_next_child+0x160/0x160 [ 490.202251][ T2832] ? stack_trace_save+0x12d/0x1f0 [ 490.207548][ T2832] ? io_schedule+0x120/0x120 [ 490.212605][ T2832] ? kernfs_fop_write_iter+0x15e/0x410 [ 490.218396][ T2832] ? __kasan_check_write+0x14/0x20 [ 490.223504][ T2832] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 490.229142][ T2832] cgroup_subtree_control_write+0xd19/0x1310 [ 490.235121][ T2832] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 490.241093][ T2832] ? __kasan_check_write+0x14/0x20 [ 490.246535][ T2832] ? _copy_from_iter+0x3fb/0xd60 [ 490.251480][ T2832] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 490.257457][ T2832] cgroup_file_write+0x28e/0x590 [ 490.262394][ T2832] ? cgroup_seqfile_stop+0xc0/0xc0 [ 490.267777][ T2832] ? mutex_trylock+0x180/0x180 [ 490.272725][ T2832] ? __kasan_check_write+0x14/0x20 [ 490.277839][ T2832] kernfs_fop_write_iter+0x2d0/0x410 [ 490.283245][ T2832] ? cgroup_seqfile_stop+0xc0/0xc0 [ 490.288441][ T2832] vfs_write+0xc4a/0xf80 [ 490.292695][ T2832] ? slab_free_freelist_hook+0xcc/0x1a0 [ 490.298234][ T2832] ? kernel_write+0x420/0x420 [ 490.302922][ T2832] ? do_sys_openat2+0x397/0x470 [ 490.307763][ T2832] ? __kasan_check_read+0x11/0x20 [ 490.312811][ T2832] ? __fdget_pos+0x27e/0x310 [ 490.317403][ T2832] ksys_write+0x198/0x2c0 [ 490.321724][ T2832] ? __kasan_check_write+0x14/0x20 [ 490.326820][ T2832] ? __ia32_sys_read+0x90/0x90 [ 490.331700][ T2832] ? debug_smp_processor_id+0x17/0x20 [ 490.337210][ T2832] __x64_sys_write+0x7b/0x90 [ 490.341906][ T2832] do_syscall_64+0x34/0x70 [ 490.346758][ T2832] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 490.352664][ T2832] RIP: 0033:0x7f48883727a9 [ 490.357281][ T2832] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 490.377475][ T2832] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 490.386163][ T2832] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 490.394394][ T2832] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 490.402375][ T2832] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 490.410546][ T2832] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 490.418603][ T2832] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001d [ 490.427365][ T2832] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 490.477301][ T2830] FAULT_INJECTION: forcing a failure. [ 490.477301][ T2830] name failslab, interval 1, probability 0, space 0, times 0 [ 490.490770][ T2830] CPU: 1 PID: 2830 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 490.501635][ T2830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 490.512109][ T2830] Call Trace: [ 490.515688][ T2830] dump_stack_lvl+0x1e2/0x24b [ 490.520367][ T2830] ? bfq_pos_tree_add_move+0x43e/0x43e [ 490.526357][ T2830] ? selinux_kernfs_init_security+0x1a8/0x760 [ 490.532792][ T2830] dump_stack+0x15/0x17 [ 490.536958][ T2830] should_fail+0x3c0/0x510 [ 490.541472][ T2830] ? __kernfs_new_node+0x99/0x6e0 [ 490.546679][ T2830] __should_failslab+0x9f/0xe0 [ 490.551674][ T2830] should_failslab+0x9/0x20 [ 490.556367][ T2830] __kmalloc_track_caller+0x5f/0x350 [ 490.561674][ T2830] kstrdup_const+0x55/0x90 [ 490.566181][ T2830] __kernfs_new_node+0x99/0x6e0 [ 490.571016][ T2830] ? is_module_text_address+0xe1/0x140 [ 490.576473][ T2830] ? kernfs_new_node+0x170/0x170 [ 490.581652][ T2830] ? ptr_to_hashval+0x60/0x60 [ 490.586327][ T2830] ? mutex_lock+0xb2/0x1e0 [ 490.590898][ T2830] ? snprintf+0xd6/0x120 [ 490.595206][ T2830] ? mutex_unlock+0x29/0xf0 [ 490.599687][ T2830] kernfs_new_node+0x97/0x170 [ 490.604441][ T2830] __kernfs_create_file+0x4a/0x270 [ 490.609794][ T2830] cgroup_addrm_files+0xab8/0xfe0 [ 490.614984][ T2830] ? ____kasan_kmalloc+0xdc/0x110 [ 490.620094][ T2830] ? __kasan_kmalloc+0x9/0x10 [ 490.624904][ T2830] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 490.630524][ T2830] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 490.636911][ T2830] ? delete_node+0x759/0x7b0 [ 490.641755][ T2830] ? __kasan_check_read+0x11/0x20 [ 490.647163][ T2830] ? idr_replace+0x1c4/0x230 [ 490.651768][ T2830] ? idr_get_next+0x4b0/0x4b0 [ 490.656801][ T2830] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 490.662243][ T2830] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 490.667606][ T2830] css_populate_dir+0x137/0x370 [ 490.672542][ T2830] cgroup_apply_control_enable+0x8b9/0x12f0 [ 490.678605][ T2830] cgroup_apply_control+0x8e/0x7e0 [ 490.683870][ T2830] ? css_next_child+0x160/0x160 [ 490.688904][ T2830] ? io_schedule+0x120/0x120 [ 490.693949][ T2830] ? kernfs_fop_write_iter+0x15e/0x410 [ 490.699864][ T2830] ? __kasan_check_write+0x14/0x20 [ 490.704972][ T2830] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 490.710523][ T2830] cgroup_subtree_control_write+0xd19/0x1310 [ 490.716615][ T2830] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 490.722814][ T2830] ? __kasan_check_write+0x14/0x20 [ 490.728120][ T2830] ? _copy_from_iter+0x3fb/0xd60 [ 490.733054][ T2830] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 490.739028][ T2830] cgroup_file_write+0x28e/0x590 [ 490.744388][ T2830] ? cgroup_seqfile_stop+0xc0/0xc0 [ 490.749900][ T2830] ? mutex_trylock+0x180/0x180 [ 490.754643][ T2830] ? __kasan_check_write+0x14/0x20 [ 490.759731][ T2830] kernfs_fop_write_iter+0x2d0/0x410 [ 490.765808][ T2830] ? cgroup_seqfile_stop+0xc0/0xc0 [ 490.772592][ T2830] vfs_write+0xc4a/0xf80 [ 490.776852][ T2830] ? kernel_write+0x420/0x420 [ 490.782473][ T2830] ? do_sys_openat2+0x397/0x470 [ 490.787424][ T2830] ? __kasan_check_read+0x11/0x20 [ 490.792455][ T2830] ? __fdget_pos+0x27e/0x310 [ 490.797025][ T2830] ksys_write+0x198/0x2c0 [ 490.801450][ T2830] ? __ia32_sys_read+0x90/0x90 [ 490.806298][ T2830] ? debug_smp_processor_id+0x17/0x20 [ 490.811648][ T2830] __x64_sys_write+0x7b/0x90 [ 490.816223][ T2830] do_syscall_64+0x34/0x70 [ 490.820628][ T2830] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 490.826519][ T2830] RIP: 0033:0x7f48883727a9 [ 490.830944][ T2830] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 490.850927][ T2830] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 490.859323][ T2830] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 490.867289][ T2830] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 490.875242][ T2830] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 490.883189][ T2830] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 490.891141][ T2830] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002d [ 490.899298][ T2830] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 490.937291][ T2833] FAULT_INJECTION: forcing a failure. [ 490.937291][ T2833] name failslab, interval 1, probability 0, space 0, times 0 [ 490.950525][ T2833] CPU: 1 PID: 2833 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 490.961052][ T2833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 490.971115][ T2833] Call Trace: [ 490.974568][ T2833] dump_stack_lvl+0x1e2/0x24b [ 490.979440][ T2833] ? bfq_pos_tree_add_move+0x43e/0x43e [ 490.984949][ T2833] ? selinux_kernfs_init_security+0x1a8/0x760 [ 490.991267][ T2833] dump_stack+0x15/0x17 [ 490.995447][ T2833] should_fail+0x3c0/0x510 [ 490.999941][ T2833] ? __kernfs_new_node+0x99/0x6e0 [ 491.005270][ T2833] __should_failslab+0x9f/0xe0 [ 491.010033][ T2833] should_failslab+0x9/0x20 [ 491.014541][ T2833] __kmalloc_track_caller+0x5f/0x350 [ 491.020119][ T2833] kstrdup_const+0x55/0x90 [ 491.024692][ T2833] __kernfs_new_node+0x99/0x6e0 [ 491.029623][ T2833] ? is_module_text_address+0xe1/0x140 [ 491.035319][ T2833] ? kernfs_new_node+0x170/0x170 [ 491.040609][ T2833] ? ptr_to_hashval+0x60/0x60 [ 491.045379][ T2833] ? mutex_lock+0xb2/0x1e0 [ 491.050032][ T2833] ? snprintf+0xd6/0x120 [ 491.054269][ T2833] ? mutex_unlock+0x29/0xf0 [ 491.058787][ T2833] kernfs_new_node+0x97/0x170 [ 491.063473][ T2833] __kernfs_create_file+0x4a/0x270 [ 491.068682][ T2833] cgroup_addrm_files+0xab8/0xfe0 [ 491.073721][ T2833] ? ____kasan_kmalloc+0xdc/0x110 [ 491.078864][ T2833] ? __kasan_kmalloc+0x9/0x10 [ 491.083645][ T2833] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 491.089495][ T2833] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 491.095878][ T2833] ? delete_node+0x759/0x7b0 [ 491.100644][ T2833] ? __kasan_check_read+0x11/0x20 [ 491.105766][ T2833] ? idr_replace+0x1c4/0x230 [ 491.110359][ T2833] ? idr_get_next+0x4b0/0x4b0 [ 491.115030][ T2833] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 491.120159][ T2833] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 491.125357][ T2833] css_populate_dir+0x137/0x370 [ 491.130607][ T2833] cgroup_apply_control_enable+0x8b9/0x12f0 [ 491.136629][ T2833] cgroup_apply_control+0x8e/0x7e0 [ 491.141762][ T2833] ? css_next_child+0x160/0x160 [ 491.146770][ T2833] ? stack_trace_save+0x12d/0x1f0 [ 491.151808][ T2833] ? io_schedule+0x120/0x120 [ 491.156420][ T2833] ? kernfs_fop_write_iter+0x15e/0x410 [ 491.161982][ T2833] ? __kasan_check_write+0x14/0x20 [ 491.167355][ T2833] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 491.172647][ T2833] cgroup_subtree_control_write+0xd19/0x1310 [ 491.178849][ T2833] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 491.184994][ T2833] ? __kasan_check_write+0x14/0x20 [ 491.190375][ T2833] ? _copy_from_iter+0x3fb/0xd60 [ 491.195783][ T2833] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 491.201949][ T2833] cgroup_file_write+0x28e/0x590 [ 491.206982][ T2833] ? cgroup_seqfile_stop+0xc0/0xc0 [ 491.212182][ T2833] ? mutex_trylock+0x180/0x180 [ 491.217022][ T2833] ? __kasan_check_write+0x14/0x20 [ 491.222216][ T2833] kernfs_fop_write_iter+0x2d0/0x410 [ 491.227512][ T2833] ? cgroup_seqfile_stop+0xc0/0xc0 [ 491.232626][ T2833] vfs_write+0xc4a/0xf80 [ 491.236861][ T2833] ? slab_free_freelist_hook+0xcc/0x1a0 [ 491.242418][ T2833] ? kernel_write+0x420/0x420 [ 491.247122][ T2833] ? do_sys_openat2+0x397/0x470 [ 491.252007][ T2833] ? __kasan_check_read+0x11/0x20 [ 491.257023][ T2833] ? __fdget_pos+0x27e/0x310 [ 491.261721][ T2833] ksys_write+0x198/0x2c0 [ 491.266069][ T2833] ? __ia32_sys_read+0x90/0x90 [ 491.270972][ T2833] ? debug_smp_processor_id+0x17/0x20 [ 491.276356][ T2833] __x64_sys_write+0x7b/0x90 [ 491.280952][ T2833] do_syscall_64+0x34/0x70 [ 491.285473][ T2833] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 491.291400][ T2833] RIP: 0033:0x7f48883727a9 [ 491.295823][ T2833] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 491.316269][ T2833] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 491.324823][ T2833] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 491.332788][ T2833] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 491.340873][ T2833] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 491.349440][ T2833] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 491.357784][ T2833] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001a [ 491.366984][ T2833] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 491.387420][ T2837] FAULT_INJECTION: forcing a failure. [ 491.387420][ T2837] name failslab, interval 1, probability 0, space 0, times 0 [ 491.401283][ T2837] CPU: 1 PID: 2837 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 491.412769][ T2837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 491.423602][ T2837] Call Trace: [ 491.427204][ T2837] dump_stack_lvl+0x1e2/0x24b [ 491.431975][ T2837] ? bfq_pos_tree_add_move+0x43e/0x43e [ 491.437565][ T2837] ? selinux_kernfs_init_security+0x1a8/0x760 [ 491.444254][ T2837] dump_stack+0x15/0x17 [ 491.448747][ T2837] should_fail+0x3c0/0x510 [ 491.453233][ T2837] ? __kernfs_new_node+0x99/0x6e0 [ 491.458488][ T2837] __should_failslab+0x9f/0xe0 [ 491.463422][ T2837] should_failslab+0x9/0x20 [ 491.468042][ T2837] __kmalloc_track_caller+0x5f/0x350 [ 491.473329][ T2837] kstrdup_const+0x55/0x90 [ 491.477820][ T2837] __kernfs_new_node+0x99/0x6e0 [ 491.482699][ T2837] ? is_module_text_address+0xe1/0x140 [ 491.488256][ T2837] ? kernfs_new_node+0x170/0x170 [ 491.493216][ T2837] ? ptr_to_hashval+0x60/0x60 [ 491.498004][ T2837] ? mutex_lock+0xb2/0x1e0 [ 491.502708][ T2837] ? snprintf+0xd6/0x120 [ 491.507405][ T2837] ? mutex_unlock+0x29/0xf0 [ 491.512137][ T2837] kernfs_new_node+0x97/0x170 [ 491.517116][ T2837] __kernfs_create_file+0x4a/0x270 [ 491.522409][ T2837] cgroup_addrm_files+0xab8/0xfe0 [ 491.527547][ T2837] ? ____kasan_kmalloc+0xdc/0x110 [ 491.532708][ T2837] ? __kasan_kmalloc+0x9/0x10 [ 491.537496][ T2837] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 491.543150][ T2837] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 491.549581][ T2837] ? delete_node+0x759/0x7b0 [ 491.554470][ T2837] ? __kasan_check_read+0x11/0x20 [ 491.559857][ T2837] ? idr_replace+0x1c4/0x230 [ 491.564706][ T2837] ? idr_get_next+0x4b0/0x4b0 [ 491.569607][ T2837] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 491.574985][ T2837] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 491.580187][ T2837] css_populate_dir+0x137/0x370 [ 491.585127][ T2837] cgroup_apply_control_enable+0x8b9/0x12f0 [ 491.591034][ T2837] cgroup_apply_control+0x8e/0x7e0 [ 491.596340][ T2837] ? css_next_child+0x160/0x160 [ 491.601191][ T2837] ? stack_trace_save+0x12d/0x1f0 [ 491.606818][ T2837] ? io_schedule+0x120/0x120 [ 491.611434][ T2837] ? kernfs_fop_write_iter+0x15e/0x410 [ 491.617484][ T2837] ? __kasan_check_write+0x14/0x20 [ 491.623233][ T2837] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 491.629198][ T2837] cgroup_subtree_control_write+0xd19/0x1310 [ 491.635875][ T2837] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 491.642444][ T2837] ? __kasan_check_write+0x14/0x20 [ 491.648762][ T2837] ? _copy_from_iter+0x3fb/0xd60 [ 491.653791][ T2837] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 491.659762][ T2837] cgroup_file_write+0x28e/0x590 [ 491.664802][ T2837] ? cgroup_seqfile_stop+0xc0/0xc0 [ 491.670316][ T2837] ? mutex_trylock+0x180/0x180 [ 491.675705][ T2837] ? __kasan_check_write+0x14/0x20 [ 491.681000][ T2837] kernfs_fop_write_iter+0x2d0/0x410 [ 491.686859][ T2837] ? cgroup_seqfile_stop+0xc0/0xc0 [ 491.692135][ T2837] vfs_write+0xc4a/0xf80 [ 491.696652][ T2837] ? slab_free_freelist_hook+0xcc/0x1a0 [ 491.702215][ T2837] ? kernel_write+0x420/0x420 [ 491.706970][ T2837] ? do_sys_openat2+0x397/0x470 [ 491.711924][ T2837] ? __kasan_check_read+0x11/0x20 [ 491.717035][ T2837] ? __fdget_pos+0x27e/0x310 [ 491.721619][ T2837] ksys_write+0x198/0x2c0 [ 491.725959][ T2837] ? __ia32_sys_read+0x90/0x90 [ 491.730711][ T2837] ? debug_smp_processor_id+0x17/0x20 [ 491.736095][ T2837] __x64_sys_write+0x7b/0x90 [ 491.740688][ T2837] do_syscall_64+0x34/0x70 [ 491.745113][ T2837] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 491.751000][ T2837] RIP: 0033:0x7f48883727a9 [ 491.755405][ T2837] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 491.775116][ T2837] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 491.783623][ T2837] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 491.791599][ T2837] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 491.799752][ T2837] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 491.807831][ T2837] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 491.816186][ T2837] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001b [ 491.824359][ T2837] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 491.857317][ T2834] FAULT_INJECTION: forcing a failure. [ 491.857317][ T2834] name failslab, interval 1, probability 0, space 0, times 0 [ 491.870679][ T2834] CPU: 0 PID: 2834 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 491.881087][ T2834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 491.891144][ T2834] Call Trace: [ 491.894437][ T2834] dump_stack_lvl+0x1e2/0x24b [ 491.899255][ T2834] ? panic+0x7d7/0x7d7 [ 491.903403][ T2834] ? bfq_pos_tree_add_move+0x43e/0x43e [ 491.909016][ T2834] ? selinux_kernfs_init_security+0x1a8/0x760 [ 491.915160][ T2834] dump_stack+0x15/0x17 [ 491.919490][ T2834] should_fail+0x3c0/0x510 [ 491.923909][ T2834] __should_failslab+0x9f/0xe0 [ 491.928655][ T2834] should_failslab+0x9/0x20 [ 491.933137][ T2834] kmem_cache_alloc+0x3f/0x300 [ 491.937910][ T2834] ? __kernfs_new_node+0xdb/0x6e0 [ 491.943032][ T2834] __kernfs_new_node+0xdb/0x6e0 [ 491.947954][ T2834] ? is_module_text_address+0xe1/0x140 [ 491.953505][ T2834] ? kernfs_new_node+0x170/0x170 [ 491.958431][ T2834] ? ptr_to_hashval+0x60/0x60 [ 491.963089][ T2834] ? arch_stack_walk+0xf8/0x140 [ 491.968012][ T2834] ? snprintf+0xd6/0x120 [ 491.972236][ T2834] kernfs_new_node+0x97/0x170 [ 491.976910][ T2834] __kernfs_create_file+0x4a/0x270 [ 491.982024][ T2834] cgroup_addrm_files+0xab8/0xfe0 [ 491.987039][ T2834] ? ____kasan_kmalloc+0xdc/0x110 [ 491.992121][ T2834] ? __kasan_kmalloc+0x9/0x10 [ 491.996803][ T2834] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 492.002439][ T2834] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 492.008715][ T2834] ? delete_node+0x759/0x7b0 [ 492.013296][ T2834] ? __kasan_check_read+0x11/0x20 [ 492.018306][ T2834] ? delete_node+0x759/0x7b0 [ 492.023111][ T2834] ? __kasan_check_write+0x14/0x20 [ 492.028236][ T2834] ? idr_replace+0x1c4/0x230 [ 492.032921][ T2834] ? idr_get_next+0x4b0/0x4b0 [ 492.037708][ T2834] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 492.042902][ T2834] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 492.048341][ T2834] css_populate_dir+0x137/0x370 [ 492.053211][ T2834] cgroup_apply_control_enable+0x8b9/0x12f0 [ 492.059198][ T2834] cgroup_apply_control+0x8e/0x7e0 [ 492.064312][ T2834] ? css_next_child+0x160/0x160 [ 492.069181][ T2834] ? stack_trace_save+0x12d/0x1f0 [ 492.074199][ T2834] ? io_schedule+0x120/0x120 [ 492.078792][ T2834] ? kernfs_fop_write_iter+0x15e/0x410 [ 492.084239][ T2834] ? __kasan_check_write+0x14/0x20 [ 492.089362][ T2834] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 492.094640][ T2834] cgroup_subtree_control_write+0xd19/0x1310 [ 492.100604][ T2834] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 492.106565][ T2834] ? __kasan_check_write+0x14/0x20 [ 492.111832][ T2834] ? _copy_from_iter+0x3fb/0xd60 [ 492.116797][ T2834] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 492.122947][ T2834] cgroup_file_write+0x28e/0x590 [ 492.127896][ T2834] ? cgroup_seqfile_stop+0xc0/0xc0 [ 492.133683][ T2834] ? mutex_trylock+0x180/0x180 [ 492.138462][ T2834] ? __kasan_check_write+0x14/0x20 [ 492.144339][ T2834] kernfs_fop_write_iter+0x2d0/0x410 [ 492.149627][ T2834] ? cgroup_seqfile_stop+0xc0/0xc0 [ 492.154897][ T2834] vfs_write+0xc4a/0xf80 [ 492.159526][ T2834] ? slab_free_freelist_hook+0xcc/0x1a0 [ 492.165328][ T2834] ? kernel_write+0x420/0x420 [ 492.170271][ T2834] ? do_sys_openat2+0x397/0x470 [ 492.175192][ T2834] ? __kasan_check_read+0x11/0x20 [ 492.180285][ T2834] ? __fdget_pos+0x27e/0x310 [ 492.184871][ T2834] ksys_write+0x198/0x2c0 [ 492.189295][ T2834] ? __ia32_sys_read+0x90/0x90 [ 492.194144][ T2834] ? debug_smp_processor_id+0x17/0x20 [ 492.199770][ T2834] __x64_sys_write+0x7b/0x90 [ 492.204377][ T2834] do_syscall_64+0x34/0x70 [ 492.209265][ T2834] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 492.216981][ T2834] RIP: 0033:0x7f48883727a9 [ 492.221399][ T2834] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 492.241267][ T2834] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 492.249883][ T2834] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 492.258309][ T2834] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 492.266429][ T2834] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 492.274402][ T2834] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 492.282542][ T2834] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000021 [ 492.291677][ T2834] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 492.337421][ T2840] FAULT_INJECTION: forcing a failure. [ 492.337421][ T2840] name failslab, interval 1, probability 0, space 0, times 0 [ 492.350679][ T2840] CPU: 0 PID: 2840 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 492.361802][ T2840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 492.372522][ T2840] Call Trace: [ 492.375919][ T2840] dump_stack_lvl+0x1e2/0x24b [ 492.381020][ T2840] ? bfq_pos_tree_add_move+0x43e/0x43e [ 492.386833][ T2840] ? selinux_kernfs_init_security+0x1a8/0x760 [ 492.393188][ T2840] dump_stack+0x15/0x17 [ 492.397483][ T2840] should_fail+0x3c0/0x510 [ 492.401909][ T2840] ? __kernfs_new_node+0x99/0x6e0 [ 492.407106][ T2840] __should_failslab+0x9f/0xe0 [ 492.411871][ T2840] should_failslab+0x9/0x20 [ 492.416358][ T2840] __kmalloc_track_caller+0x5f/0x350 [ 492.421631][ T2840] kstrdup_const+0x55/0x90 [ 492.426181][ T2840] __kernfs_new_node+0x99/0x6e0 [ 492.431026][ T2840] ? is_module_text_address+0xe1/0x140 [ 492.436775][ T2840] ? kernfs_new_node+0x170/0x170 [ 492.441798][ T2840] ? ptr_to_hashval+0x60/0x60 [ 492.446602][ T2840] ? mutex_lock+0xb2/0x1e0 [ 492.451496][ T2840] ? snprintf+0xd6/0x120 [ 492.455875][ T2840] ? mutex_unlock+0x29/0xf0 [ 492.460379][ T2840] kernfs_new_node+0x97/0x170 [ 492.465049][ T2840] __kernfs_create_file+0x4a/0x270 [ 492.470163][ T2840] cgroup_addrm_files+0xab8/0xfe0 [ 492.475285][ T2840] ? ____kasan_kmalloc+0xdc/0x110 [ 492.480295][ T2840] ? __kasan_kmalloc+0x9/0x10 [ 492.484957][ T2840] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 492.490506][ T2840] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 492.496785][ T2840] ? delete_node+0x759/0x7b0 [ 492.501380][ T2840] ? __kasan_check_read+0x11/0x20 [ 492.506504][ T2840] ? idr_replace+0x1c4/0x230 [ 492.511097][ T2840] ? idr_get_next+0x4b0/0x4b0 [ 492.515775][ T2840] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 492.520989][ T2840] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 492.526971][ T2840] css_populate_dir+0x137/0x370 [ 492.532059][ T2840] cgroup_apply_control_enable+0x8b9/0x12f0 [ 492.538059][ T2840] cgroup_apply_control+0x8e/0x7e0 [ 492.543287][ T2840] ? css_next_child+0x160/0x160 [ 492.548130][ T2840] ? stack_trace_save+0x12d/0x1f0 [ 492.553511][ T2840] ? io_schedule+0x120/0x120 [ 492.558268][ T2840] ? kernfs_fop_write_iter+0x15e/0x410 [ 492.563753][ T2840] ? __kasan_check_write+0x14/0x20 [ 492.568873][ T2840] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 492.574147][ T2840] cgroup_subtree_control_write+0xd19/0x1310 [ 492.580417][ T2840] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 492.586630][ T2840] ? __kasan_check_write+0x14/0x20 [ 492.591751][ T2840] ? _copy_from_iter+0x3fb/0xd60 [ 492.597152][ T2840] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 492.603445][ T2840] cgroup_file_write+0x28e/0x590 [ 492.608446][ T2840] ? cgroup_seqfile_stop+0xc0/0xc0 [ 492.613658][ T2840] ? mutex_trylock+0x180/0x180 [ 492.618495][ T2840] ? __kasan_check_write+0x14/0x20 [ 492.623683][ T2840] kernfs_fop_write_iter+0x2d0/0x410 [ 492.629175][ T2840] ? cgroup_seqfile_stop+0xc0/0xc0 [ 492.634539][ T2840] vfs_write+0xc4a/0xf80 [ 492.638887][ T2840] ? slab_free_freelist_hook+0xcc/0x1a0 [ 492.644442][ T2840] ? kernel_write+0x420/0x420 [ 492.649179][ T2840] ? do_sys_openat2+0x397/0x470 [ 492.654042][ T2840] ? __kasan_check_read+0x11/0x20 [ 492.659277][ T2840] ? __fdget_pos+0x27e/0x310 [ 492.663883][ T2840] ksys_write+0x198/0x2c0 [ 492.668297][ T2840] ? __ia32_sys_read+0x90/0x90 [ 492.673189][ T2840] ? debug_smp_processor_id+0x17/0x20 [ 492.678708][ T2840] __x64_sys_write+0x7b/0x90 [ 492.683318][ T2840] do_syscall_64+0x34/0x70 [ 492.687721][ T2840] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 492.693606][ T2840] RIP: 0033:0x7f48883727a9 [ 492.698009][ T2840] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 492.717722][ T2840] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 492.726132][ T2840] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 492.734196][ T2840] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 492.742376][ T2840] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 492.750357][ T2840] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 492.758321][ T2840] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000022 [ 492.766782][ T2840] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 492.807223][ T2838] FAULT_INJECTION: forcing a failure. [ 492.807223][ T2838] name failslab, interval 1, probability 0, space 0, times 0 [ 492.819927][ T2838] CPU: 1 PID: 2838 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 492.830412][ T2838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 492.840744][ T2838] Call Trace: [ 492.844047][ T2838] dump_stack_lvl+0x1e2/0x24b [ 492.848820][ T2838] ? bfq_pos_tree_add_move+0x43e/0x43e [ 492.854275][ T2838] ? selinux_kernfs_init_security+0x1a8/0x760 [ 492.860323][ T2838] dump_stack+0x15/0x17 [ 492.864465][ T2838] should_fail+0x3c0/0x510 [ 492.868862][ T2838] ? __kernfs_new_node+0x99/0x6e0 [ 492.873956][ T2838] __should_failslab+0x9f/0xe0 [ 492.878703][ T2838] should_failslab+0x9/0x20 [ 492.883200][ T2838] __kmalloc_track_caller+0x5f/0x350 [ 492.888519][ T2838] kstrdup_const+0x55/0x90 [ 492.892937][ T2838] __kernfs_new_node+0x99/0x6e0 [ 492.897779][ T2838] ? is_module_text_address+0xe1/0x140 [ 492.903218][ T2838] ? kernfs_new_node+0x170/0x170 [ 492.908132][ T2838] ? ptr_to_hashval+0x60/0x60 [ 492.912785][ T2838] ? mutex_lock+0xb2/0x1e0 [ 492.917181][ T2838] ? snprintf+0xd6/0x120 [ 492.921418][ T2838] ? mutex_unlock+0x29/0xf0 [ 492.926037][ T2838] kernfs_new_node+0x97/0x170 [ 492.930725][ T2838] __kernfs_create_file+0x4a/0x270 [ 492.935840][ T2838] cgroup_addrm_files+0xab8/0xfe0 [ 492.941069][ T2838] ? ____kasan_kmalloc+0xdc/0x110 [ 492.946071][ T2838] ? __kasan_kmalloc+0x9/0x10 [ 492.950770][ T2838] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 492.956408][ T2838] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 492.962666][ T2838] ? delete_node+0x759/0x7b0 [ 492.967266][ T2838] ? __kasan_check_read+0x11/0x20 [ 492.972273][ T2838] ? idr_replace+0x1c4/0x230 [ 492.976926][ T2838] ? idr_get_next+0x4b0/0x4b0 [ 492.981579][ T2838] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 492.986581][ T2838] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 492.991774][ T2838] css_populate_dir+0x137/0x370 [ 492.996640][ T2838] cgroup_apply_control_enable+0x8b9/0x12f0 [ 493.002559][ T2838] cgroup_apply_control+0x8e/0x7e0 [ 493.007692][ T2838] ? css_next_child+0x160/0x160 [ 493.012541][ T2838] ? stack_trace_save+0x12d/0x1f0 [ 493.017547][ T2838] ? io_schedule+0x120/0x120 [ 493.023808][ T2838] ? kernfs_fop_write_iter+0x15e/0x410 [ 493.029477][ T2838] ? __kasan_check_write+0x14/0x20 [ 493.034597][ T2838] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 493.039872][ T2838] cgroup_subtree_control_write+0xd19/0x1310 [ 493.046065][ T2838] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 493.052200][ T2838] ? __kasan_check_write+0x14/0x20 [ 493.057397][ T2838] ? _copy_from_iter+0x3fb/0xd60 [ 493.062319][ T2838] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 493.068362][ T2838] cgroup_file_write+0x28e/0x590 [ 493.073375][ T2838] ? cgroup_seqfile_stop+0xc0/0xc0 [ 493.078676][ T2838] ? mutex_trylock+0x180/0x180 [ 493.083423][ T2838] ? __kasan_check_write+0x14/0x20 [ 493.088758][ T2838] kernfs_fop_write_iter+0x2d0/0x410 [ 493.094334][ T2838] ? cgroup_seqfile_stop+0xc0/0xc0 [ 493.099431][ T2838] vfs_write+0xc4a/0xf80 [ 493.103741][ T2838] ? slab_free_freelist_hook+0xcc/0x1a0 [ 493.109297][ T2838] ? kernel_write+0x420/0x420 [ 493.113987][ T2838] ? do_sys_openat2+0x397/0x470 [ 493.118846][ T2838] ? __kasan_check_read+0x11/0x20 [ 493.123866][ T2838] ? __fdget_pos+0x27e/0x310 [ 493.128440][ T2838] ksys_write+0x198/0x2c0 [ 493.132838][ T2838] ? __ia32_sys_read+0x90/0x90 [ 493.137603][ T2838] ? debug_smp_processor_id+0x17/0x20 [ 493.142957][ T2838] __x64_sys_write+0x7b/0x90 [ 493.147524][ T2838] do_syscall_64+0x34/0x70 [ 493.151917][ T2838] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 493.157790][ T2838] RIP: 0033:0x7f48883727a9 [ 493.162191][ T2838] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 493.182181][ T2838] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 493.190691][ T2838] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 493.198686][ T2838] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 493.206640][ T2838] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 493.214677][ T2838] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 493.222712][ T2838] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001d [ 493.230917][ T2838] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 493.327055][ T2835] FAULT_INJECTION: forcing a failure. [ 493.327055][ T2835] name failslab, interval 1, probability 0, space 0, times 0 [ 493.339914][ T2835] CPU: 0 PID: 2835 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 493.351022][ T2835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 493.361643][ T2835] Call Trace: [ 493.365233][ T2835] dump_stack_lvl+0x1e2/0x24b [ 493.370732][ T2835] ? bfq_pos_tree_add_move+0x43e/0x43e [ 493.376579][ T2835] ? selinux_kernfs_init_security+0x1a8/0x760 [ 493.382685][ T2835] dump_stack+0x15/0x17 [ 493.386833][ T2835] should_fail+0x3c0/0x510 [ 493.391237][ T2835] ? __kernfs_new_node+0x99/0x6e0 [ 493.396352][ T2835] __should_failslab+0x9f/0xe0 [ 493.401290][ T2835] should_failslab+0x9/0x20 [ 493.405871][ T2835] __kmalloc_track_caller+0x5f/0x350 [ 493.411186][ T2835] kstrdup_const+0x55/0x90 [ 493.415659][ T2835] __kernfs_new_node+0x99/0x6e0 [ 493.420514][ T2835] ? is_module_text_address+0xe1/0x140 [ 493.425993][ T2835] ? kernfs_new_node+0x170/0x170 [ 493.430926][ T2835] ? ptr_to_hashval+0x60/0x60 [ 493.435781][ T2835] ? mutex_lock+0xb2/0x1e0 [ 493.440300][ T2835] ? snprintf+0xd6/0x120 [ 493.444579][ T2835] ? mutex_unlock+0x29/0xf0 [ 493.449099][ T2835] kernfs_new_node+0x97/0x170 [ 493.453944][ T2835] __kernfs_create_file+0x4a/0x270 [ 493.459063][ T2835] cgroup_addrm_files+0xab8/0xfe0 [ 493.464244][ T2835] ? ____kasan_kmalloc+0xdc/0x110 [ 493.469692][ T2835] ? __kasan_kmalloc+0x9/0x10 [ 493.474594][ T2835] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 493.480146][ T2835] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 493.486302][ T2835] ? delete_node+0x759/0x7b0 [ 493.491064][ T2835] ? __kasan_check_read+0x11/0x20 [ 493.496472][ T2835] ? idr_replace+0x1c4/0x230 [ 493.501074][ T2835] ? idr_get_next+0x4b0/0x4b0 [ 493.506111][ T2835] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 493.511349][ T2835] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 493.516684][ T2835] css_populate_dir+0x137/0x370 [ 493.521577][ T2835] cgroup_apply_control_enable+0x8b9/0x12f0 [ 493.527495][ T2835] cgroup_apply_control+0x8e/0x7e0 [ 493.532628][ T2835] ? css_next_child+0x160/0x160 [ 493.537587][ T2835] ? stack_trace_save+0x12d/0x1f0 [ 493.542624][ T2835] ? io_schedule+0x120/0x120 [ 493.547304][ T2835] ? kernfs_fop_write_iter+0x15e/0x410 [ 493.553112][ T2835] ? __kasan_check_write+0x14/0x20 [ 493.558249][ T2835] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 493.563690][ T2835] cgroup_subtree_control_write+0xd19/0x1310 [ 493.569756][ T2835] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 493.576069][ T2835] ? __kasan_check_write+0x14/0x20 [ 493.581398][ T2835] ? _copy_from_iter+0x3fb/0xd60 [ 493.586534][ T2835] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 493.592512][ T2835] cgroup_file_write+0x28e/0x590 [ 493.597439][ T2835] ? cgroup_seqfile_stop+0xc0/0xc0 [ 493.602535][ T2835] ? mutex_trylock+0x180/0x180 [ 493.607283][ T2835] ? __kasan_check_write+0x14/0x20 [ 493.612400][ T2835] kernfs_fop_write_iter+0x2d0/0x410 [ 493.618188][ T2835] ? cgroup_seqfile_stop+0xc0/0xc0 [ 493.623584][ T2835] vfs_write+0xc4a/0xf80 [ 493.627958][ T2835] ? slab_free_freelist_hook+0xcc/0x1a0 [ 493.634006][ T2835] ? kernel_write+0x420/0x420 [ 493.638858][ T2835] ? do_sys_openat2+0x397/0x470 [ 493.643963][ T2835] ? __kasan_check_read+0x11/0x20 [ 493.649071][ T2835] ? __fdget_pos+0x27e/0x310 [ 493.653755][ T2835] ksys_write+0x198/0x2c0 [ 493.658278][ T2835] ? __ia32_sys_read+0x90/0x90 [ 493.663647][ T2835] ? debug_smp_processor_id+0x17/0x20 [ 493.669623][ T2835] __x64_sys_write+0x7b/0x90 [ 493.675102][ T2835] do_syscall_64+0x34/0x70 [ 493.680245][ T2835] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 493.686314][ T2835] RIP: 0033:0x7f48883727a9 [ 493.690923][ T2835] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 493.711678][ T2835] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 493.720450][ T2835] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 493.728415][ T2835] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 493.736795][ T2835] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 493.744960][ T2835] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 493.753085][ T2835] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001e [ 493.761294][ T2835] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 493.807182][ T2831] FAULT_INJECTION: forcing a failure. [ 493.807182][ T2831] name failslab, interval 1, probability 0, space 0, times 0 [ 493.820700][ T2831] CPU: 1 PID: 2831 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 493.831185][ T2831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 493.841335][ T2831] Call Trace: [ 493.844620][ T2831] dump_stack_lvl+0x1e2/0x24b [ 493.849287][ T2831] ? bfq_pos_tree_add_move+0x43e/0x43e [ 493.854737][ T2831] ? selinux_kernfs_init_security+0x1a8/0x760 [ 493.860896][ T2831] dump_stack+0x15/0x17 [ 493.866185][ T2831] should_fail+0x3c0/0x510 [ 493.870731][ T2831] ? __kernfs_new_node+0x99/0x6e0 [ 493.875864][ T2831] __should_failslab+0x9f/0xe0 [ 493.880739][ T2831] should_failslab+0x9/0x20 [ 493.885315][ T2831] __kmalloc_track_caller+0x5f/0x350 [ 493.890629][ T2831] kstrdup_const+0x55/0x90 [ 493.895048][ T2831] __kernfs_new_node+0x99/0x6e0 [ 493.900001][ T2831] ? is_module_text_address+0xe1/0x140 [ 493.905484][ T2831] ? kernfs_new_node+0x170/0x170 [ 493.910506][ T2831] ? ptr_to_hashval+0x60/0x60 [ 493.915166][ T2831] ? mutex_lock+0xb2/0x1e0 [ 493.919567][ T2831] ? snprintf+0xd6/0x120 [ 493.923789][ T2831] ? mutex_unlock+0x29/0xf0 [ 493.928290][ T2831] kernfs_new_node+0x97/0x170 [ 493.932975][ T2831] __kernfs_create_file+0x4a/0x270 [ 493.938298][ T2831] cgroup_addrm_files+0xab8/0xfe0 [ 493.943666][ T2831] ? ____kasan_kmalloc+0xdc/0x110 [ 493.948799][ T2831] ? __kasan_kmalloc+0x9/0x10 [ 493.953575][ T2831] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 493.959138][ T2831] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 493.965434][ T2831] ? delete_node+0x759/0x7b0 [ 493.970116][ T2831] ? __kasan_check_read+0x11/0x20 [ 493.975383][ T2831] ? idr_replace+0x1c4/0x230 [ 493.979985][ T2831] ? idr_get_next+0x4b0/0x4b0 [ 493.984659][ T2831] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 493.989847][ T2831] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 493.995055][ T2831] css_populate_dir+0x137/0x370 [ 494.000200][ T2831] cgroup_apply_control_enable+0x8b9/0x12f0 [ 494.006098][ T2831] cgroup_apply_control+0x8e/0x7e0 [ 494.011205][ T2831] ? css_next_child+0x160/0x160 [ 494.016199][ T2831] ? io_schedule+0x120/0x120 [ 494.021648][ T2831] ? kernfs_fop_write_iter+0x15e/0x410 [ 494.027224][ T2831] ? __kasan_check_write+0x14/0x20 [ 494.032560][ T2831] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 494.037869][ T2831] cgroup_subtree_control_write+0xd19/0x1310 [ 494.043847][ T2831] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 494.049829][ T2831] ? __kasan_check_write+0x14/0x20 [ 494.054951][ T2831] ? _copy_from_iter+0x3fb/0xd60 [ 494.059976][ T2831] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 494.066087][ T2831] cgroup_file_write+0x28e/0x590 [ 494.071051][ T2831] ? cgroup_seqfile_stop+0xc0/0xc0 [ 494.076155][ T2831] ? mutex_trylock+0x180/0x180 [ 494.081031][ T2831] ? __kasan_check_write+0x14/0x20 [ 494.086132][ T2831] kernfs_fop_write_iter+0x2d0/0x410 [ 494.091410][ T2831] ? cgroup_seqfile_stop+0xc0/0xc0 [ 494.096713][ T2831] vfs_write+0xc4a/0xf80 [ 494.100952][ T2831] ? kernel_write+0x420/0x420 [ 494.105731][ T2831] ? do_sys_openat2+0x397/0x470 [ 494.110565][ T2831] ? __kasan_check_read+0x11/0x20 [ 494.115594][ T2831] ? __fdget_pos+0x27e/0x310 [ 494.120439][ T2831] ksys_write+0x198/0x2c0 [ 494.124786][ T2831] ? __ia32_sys_read+0x90/0x90 [ 494.129798][ T2831] ? debug_smp_processor_id+0x17/0x20 [ 494.135198][ T2831] __x64_sys_write+0x7b/0x90 [ 494.139899][ T2831] do_syscall_64+0x34/0x70 [ 494.144566][ T2831] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 494.150586][ T2831] RIP: 0033:0x7f48883727a9 [ 494.154989][ T2831] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 494.175182][ T2831] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 494.183730][ T2831] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 494.191865][ T2831] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 494.199826][ T2831] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 494.207900][ T2831] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 494.215866][ T2831] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000020 [ 494.224193][ T2831] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 494.267111][ T2836] FAULT_INJECTION: forcing a failure. [ 494.267111][ T2836] name failslab, interval 1, probability 0, space 0, times 0 [ 494.279879][ T2836] CPU: 0 PID: 2836 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 494.290323][ T2836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 494.300576][ T2836] Call Trace: [ 494.303875][ T2836] dump_stack_lvl+0x1e2/0x24b [ 494.308555][ T2836] ? panic+0x7d7/0x7d7 [ 494.313042][ T2836] ? bfq_pos_tree_add_move+0x43e/0x43e [ 494.318494][ T2836] ? selinux_kernfs_init_security+0x1a8/0x760 [ 494.324668][ T2836] dump_stack+0x15/0x17 [ 494.328832][ T2836] should_fail+0x3c0/0x510 [ 494.333253][ T2836] __should_failslab+0x9f/0xe0 [ 494.338364][ T2836] should_failslab+0x9/0x20 [ 494.342972][ T2836] kmem_cache_alloc+0x3f/0x300 [ 494.347733][ T2836] ? __kernfs_new_node+0xdb/0x6e0 [ 494.352758][ T2836] __kernfs_new_node+0xdb/0x6e0 [ 494.357725][ T2836] ? is_module_text_address+0xe1/0x140 [ 494.363214][ T2836] ? kernfs_new_node+0x170/0x170 [ 494.368542][ T2836] ? ptr_to_hashval+0x60/0x60 [ 494.373224][ T2836] ? arch_stack_walk+0xf8/0x140 [ 494.378072][ T2836] ? snprintf+0xd6/0x120 [ 494.382323][ T2836] kernfs_new_node+0x97/0x170 [ 494.387002][ T2836] __kernfs_create_file+0x4a/0x270 [ 494.392221][ T2836] cgroup_addrm_files+0xab8/0xfe0 [ 494.397237][ T2836] ? ____kasan_kmalloc+0xdc/0x110 [ 494.402246][ T2836] ? __kasan_kmalloc+0x9/0x10 [ 494.406907][ T2836] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 494.412499][ T2836] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 494.418779][ T2836] ? delete_node+0x759/0x7b0 [ 494.423388][ T2836] ? __kasan_check_read+0x11/0x20 [ 494.428409][ T2836] ? delete_node+0x759/0x7b0 [ 494.432986][ T2836] ? __kasan_check_write+0x14/0x20 [ 494.438099][ T2836] ? idr_replace+0x1c4/0x230 [ 494.442674][ T2836] ? idr_get_next+0x4b0/0x4b0 [ 494.447559][ T2836] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 494.452592][ T2836] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 494.458105][ T2836] css_populate_dir+0x137/0x370 [ 494.462972][ T2836] cgroup_apply_control_enable+0x8b9/0x12f0 [ 494.468982][ T2836] cgroup_apply_control+0x8e/0x7e0 [ 494.474328][ T2836] ? css_next_child+0x160/0x160 [ 494.479196][ T2836] ? stack_trace_save+0x12d/0x1f0 [ 494.484328][ T2836] ? io_schedule+0x120/0x120 [ 494.489232][ T2836] ? kernfs_fop_write_iter+0x15e/0x410 [ 494.495123][ T2836] ? __kasan_check_write+0x14/0x20 [ 494.500251][ T2836] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 494.506123][ T2836] cgroup_subtree_control_write+0xd19/0x1310 [ 494.512683][ T2836] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 494.519286][ T2836] ? __kasan_check_write+0x14/0x20 [ 494.524501][ T2836] ? _copy_from_iter+0x3fb/0xd60 [ 494.529437][ T2836] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 494.535411][ T2836] cgroup_file_write+0x28e/0x590 [ 494.540459][ T2836] ? cgroup_seqfile_stop+0xc0/0xc0 [ 494.545778][ T2836] ? mutex_trylock+0x180/0x180 [ 494.550902][ T2836] ? __kasan_check_write+0x14/0x20 [ 494.556101][ T2836] kernfs_fop_write_iter+0x2d0/0x410 [ 494.561378][ T2836] ? cgroup_seqfile_stop+0xc0/0xc0 [ 494.566490][ T2836] vfs_write+0xc4a/0xf80 [ 494.570724][ T2836] ? slab_free_freelist_hook+0xcc/0x1a0 [ 494.576463][ T2836] ? kernel_write+0x420/0x420 [ 494.581127][ T2836] ? do_sys_openat2+0x397/0x470 [ 494.586137][ T2836] ? __kasan_check_read+0x11/0x20 [ 494.591152][ T2836] ? __fdget_pos+0x27e/0x310 [ 494.595751][ T2836] ksys_write+0x198/0x2c0 [ 494.600122][ T2836] ? __ia32_sys_read+0x90/0x90 [ 494.604924][ T2836] ? debug_smp_processor_id+0x17/0x20 [ 494.610296][ T2836] __x64_sys_write+0x7b/0x90 [ 494.614890][ T2836] do_syscall_64+0x34/0x70 [ 494.619561][ T2836] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 494.625538][ T2836] RIP: 0033:0x7f48883727a9 [ 494.629966][ T2836] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 494.649711][ T2836] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 494.658114][ T2836] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 494.666228][ T2836] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 494.674188][ T2836] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 494.682164][ T2836] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 494.690799][ T2836] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002e [ 494.698971][ T2836] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 494.737386][ T2841] FAULT_INJECTION: forcing a failure. [ 494.737386][ T2841] name failslab, interval 1, probability 0, space 0, times 0 [ 494.750402][ T2841] CPU: 1 PID: 2841 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 494.761000][ T2841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 494.771340][ T2841] Call Trace: [ 494.774729][ T2841] dump_stack_lvl+0x1e2/0x24b [ 494.779516][ T2841] ? panic+0x7d7/0x7d7 [ 494.783595][ T2841] ? arch_stack_walk+0x106/0x140 [ 494.788529][ T2841] ? bfq_pos_tree_add_move+0x43e/0x43e [ 494.794063][ T2841] ? do_syscall_64+0x34/0x70 [ 494.798749][ T2841] dump_stack+0x15/0x17 [ 494.802914][ T2841] should_fail+0x3c0/0x510 [ 494.807581][ T2841] __should_failslab+0x9f/0xe0 [ 494.812717][ T2841] should_failslab+0x9/0x20 [ 494.817341][ T2841] kmem_cache_alloc+0x3f/0x300 [ 494.822120][ T2841] ? __kernfs_new_node+0xdb/0x6e0 [ 494.827240][ T2841] __kernfs_new_node+0xdb/0x6e0 [ 494.832178][ T2841] ? is_module_text_address+0xe1/0x140 [ 494.837729][ T2841] ? kernfs_new_node+0x170/0x170 [ 494.842884][ T2841] ? ptr_to_hashval+0x60/0x60 [ 494.847582][ T2841] ? arch_stack_walk+0xf8/0x140 [ 494.852443][ T2841] ? snprintf+0xd6/0x120 [ 494.856673][ T2841] kernfs_new_node+0x97/0x170 [ 494.861403][ T2841] __kernfs_create_file+0x4a/0x270 [ 494.866811][ T2841] cgroup_addrm_files+0xab8/0xfe0 [ 494.872281][ T2841] ? ____kasan_kmalloc+0xdc/0x110 [ 494.877571][ T2841] ? __kasan_kmalloc+0x9/0x10 [ 494.882274][ T2841] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 494.887821][ T2841] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 494.894707][ T2841] ? delete_node+0x759/0x7b0 [ 494.899313][ T2841] ? __kasan_check_read+0x11/0x20 [ 494.904342][ T2841] ? delete_node+0x759/0x7b0 [ 494.908943][ T2841] ? __kasan_check_write+0x14/0x20 [ 494.914364][ T2841] ? idr_replace+0x1c4/0x230 [ 494.918973][ T2841] ? idr_get_next+0x4b0/0x4b0 [ 494.924033][ T2841] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 494.929061][ T2841] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 494.934896][ T2841] css_populate_dir+0x137/0x370 [ 494.940003][ T2841] cgroup_apply_control_enable+0x8b9/0x12f0 [ 494.945899][ T2841] cgroup_apply_control+0x8e/0x7e0 [ 494.951011][ T2841] ? css_next_child+0x160/0x160 [ 494.955870][ T2841] ? stack_trace_save+0x12d/0x1f0 [ 494.961780][ T2841] ? io_schedule+0x120/0x120 [ 494.966722][ T2841] ? kernfs_fop_write_iter+0x15e/0x410 [ 494.972425][ T2841] ? __kasan_check_write+0x14/0x20 [ 494.977549][ T2841] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 494.982918][ T2841] cgroup_subtree_control_write+0xd19/0x1310 [ 494.988953][ T2841] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 494.994940][ T2841] ? __kasan_check_write+0x14/0x20 [ 495.000065][ T2841] ? _copy_from_iter+0x3fb/0xd60 [ 495.004992][ T2841] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 495.010966][ T2841] cgroup_file_write+0x28e/0x590 [ 495.015901][ T2841] ? cgroup_seqfile_stop+0xc0/0xc0 [ 495.021012][ T2841] ? mutex_trylock+0x180/0x180 [ 495.025854][ T2841] ? __kasan_check_write+0x14/0x20 [ 495.031038][ T2841] kernfs_fop_write_iter+0x2d0/0x410 [ 495.036350][ T2841] ? cgroup_seqfile_stop+0xc0/0xc0 [ 495.041564][ T2841] vfs_write+0xc4a/0xf80 [ 495.045955][ T2841] ? slab_free_freelist_hook+0xcc/0x1a0 [ 495.051720][ T2841] ? kernel_write+0x420/0x420 [ 495.056543][ T2841] ? do_sys_openat2+0x397/0x470 [ 495.061410][ T2841] ? __kasan_check_read+0x11/0x20 [ 495.066428][ T2841] ? __fdget_pos+0x27e/0x310 [ 495.071000][ T2841] ksys_write+0x198/0x2c0 [ 495.075713][ T2841] ? kvm_sched_clock_read+0x18/0x40 [ 495.081474][ T2841] ? __ia32_sys_read+0x90/0x90 [ 495.086424][ T2841] ? debug_smp_processor_id+0x17/0x20 [ 495.091793][ T2841] __x64_sys_write+0x7b/0x90 [ 495.096378][ T2841] do_syscall_64+0x34/0x70 [ 495.100782][ T2841] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 495.106656][ T2841] RIP: 0033:0x7f48883727a9 [ 495.111072][ T2841] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 495.131286][ T2841] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 495.140308][ T2841] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 495.148373][ T2841] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 495.156736][ T2841] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 495.164812][ T2841] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 495.172815][ T2841] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000023 [ 495.180998][ T2841] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 495.227222][ T2843] FAULT_INJECTION: forcing a failure. [ 495.227222][ T2843] name failslab, interval 1, probability 0, space 0, times 0 [ 495.240906][ T2843] CPU: 0 PID: 2843 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 495.252042][ T2843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 495.262574][ T2843] Call Trace: [ 495.265950][ T2843] dump_stack_lvl+0x1e2/0x24b [ 495.270890][ T2843] ? bfq_pos_tree_add_move+0x43e/0x43e [ 495.276513][ T2843] ? selinux_kernfs_init_security+0x1a8/0x760 [ 495.282936][ T2843] dump_stack+0x15/0x17 [ 495.287276][ T2843] should_fail+0x3c0/0x510 [ 495.292359][ T2843] ? __kernfs_new_node+0x99/0x6e0 [ 495.297402][ T2843] __should_failslab+0x9f/0xe0 [ 495.302386][ T2843] should_failslab+0x9/0x20 [ 495.307130][ T2843] __kmalloc_track_caller+0x5f/0x350 [ 495.312642][ T2843] kstrdup_const+0x55/0x90 [ 495.317435][ T2843] __kernfs_new_node+0x99/0x6e0 [ 495.322640][ T2843] ? is_module_text_address+0xe1/0x140 [ 495.328197][ T2843] ? kernfs_new_node+0x170/0x170 [ 495.333130][ T2843] ? ptr_to_hashval+0x60/0x60 [ 495.338074][ T2843] ? mutex_lock+0xb2/0x1e0 [ 495.343098][ T2843] ? snprintf+0xd6/0x120 [ 495.347522][ T2843] ? mutex_unlock+0x29/0xf0 [ 495.352319][ T2843] kernfs_new_node+0x97/0x170 [ 495.357324][ T2843] __kernfs_create_file+0x4a/0x270 [ 495.362610][ T2843] cgroup_addrm_files+0xab8/0xfe0 [ 495.367886][ T2843] ? ____kasan_kmalloc+0xdc/0x110 [ 495.373427][ T2843] ? __kasan_kmalloc+0x9/0x10 [ 495.378488][ T2843] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 495.384260][ T2843] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 495.391110][ T2843] ? delete_node+0x759/0x7b0 [ 495.395848][ T2843] ? __kasan_check_read+0x11/0x20 [ 495.401321][ T2843] ? idr_replace+0x1c4/0x230 [ 495.405909][ T2843] ? idr_get_next+0x4b0/0x4b0 [ 495.410588][ T2843] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 495.415598][ T2843] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 495.420801][ T2843] css_populate_dir+0x137/0x370 [ 495.425645][ T2843] cgroup_apply_control_enable+0x8b9/0x12f0 [ 495.431542][ T2843] cgroup_apply_control+0x8e/0x7e0 [ 495.437098][ T2843] ? css_next_child+0x160/0x160 [ 495.442187][ T2843] ? io_schedule+0x120/0x120 [ 495.447087][ T2843] ? kernfs_fop_write_iter+0x15e/0x410 [ 495.453320][ T2843] ? __kasan_check_write+0x14/0x20 [ 495.458602][ T2843] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 495.463872][ T2843] cgroup_subtree_control_write+0xd19/0x1310 [ 495.469842][ T2843] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 495.475961][ T2843] ? __kasan_check_write+0x14/0x20 [ 495.481064][ T2843] ? _copy_from_iter+0x3fb/0xd60 [ 495.486118][ T2843] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 495.492095][ T2843] cgroup_file_write+0x28e/0x590 [ 495.497155][ T2843] ? cgroup_seqfile_stop+0xc0/0xc0 [ 495.502595][ T2843] ? mutex_trylock+0x180/0x180 [ 495.507606][ T2843] ? __kasan_check_write+0x14/0x20 [ 495.512807][ T2843] kernfs_fop_write_iter+0x2d0/0x410 [ 495.518322][ T2843] ? cgroup_seqfile_stop+0xc0/0xc0 [ 495.523444][ T2843] vfs_write+0xc4a/0xf80 [ 495.527693][ T2843] ? compat_start_thread+0x80/0x80 [ 495.532790][ T2843] ? kernel_write+0x420/0x420 [ 495.537452][ T2843] ? __switch_to_asm+0x5a/0x80 [ 495.542313][ T2843] ? __schedule+0x86e/0xc00 [ 495.546822][ T2843] ? __kasan_check_read+0x11/0x20 [ 495.551844][ T2843] ? __fdget_pos+0x27e/0x310 [ 495.556475][ T2843] ksys_write+0x198/0x2c0 [ 495.561447][ T2843] ? __ia32_sys_read+0x90/0x90 [ 495.566369][ T2843] ? debug_smp_processor_id+0x17/0x20 [ 495.571835][ T2843] __x64_sys_write+0x7b/0x90 [ 495.576410][ T2843] do_syscall_64+0x34/0x70 [ 495.581025][ T2843] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 495.586921][ T2843] RIP: 0033:0x7f48883727a9 [ 495.591412][ T2843] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 495.611692][ T2843] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 495.620129][ T2843] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 495.628211][ T2843] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 495.636172][ T2843] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 495.644242][ T2843] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 495.652262][ T2843] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001f [ 495.660934][ T2843] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 495.697617][ T2845] FAULT_INJECTION: forcing a failure. [ 495.697617][ T2845] name failslab, interval 1, probability 0, space 0, times 0 [ 495.710516][ T2845] CPU: 1 PID: 2845 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 495.720915][ T2845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 495.731129][ T2845] Call Trace: [ 495.734422][ T2845] dump_stack_lvl+0x1e2/0x24b [ 495.739172][ T2845] ? bfq_pos_tree_add_move+0x43e/0x43e [ 495.744637][ T2845] ? selinux_kernfs_init_security+0x1a8/0x760 [ 495.750699][ T2845] dump_stack+0x15/0x17 [ 495.754856][ T2845] should_fail+0x3c0/0x510 [ 495.759269][ T2845] ? __kernfs_new_node+0x99/0x6e0 [ 495.764283][ T2845] __should_failslab+0x9f/0xe0 [ 495.769053][ T2845] should_failslab+0x9/0x20 [ 495.773562][ T2845] __kmalloc_track_caller+0x5f/0x350 [ 495.778849][ T2845] kstrdup_const+0x55/0x90 [ 495.783287][ T2845] __kernfs_new_node+0x99/0x6e0 [ 495.788134][ T2845] ? is_module_text_address+0xe1/0x140 [ 495.793593][ T2845] ? kernfs_new_node+0x170/0x170 [ 495.798615][ T2845] ? ptr_to_hashval+0x60/0x60 [ 495.803410][ T2845] ? mutex_lock+0xb2/0x1e0 [ 495.807810][ T2845] ? snprintf+0xd6/0x120 [ 495.812034][ T2845] ? mutex_unlock+0x29/0xf0 [ 495.816751][ T2845] kernfs_new_node+0x97/0x170 [ 495.821534][ T2845] __kernfs_create_file+0x4a/0x270 [ 495.826751][ T2845] cgroup_addrm_files+0xab8/0xfe0 [ 495.831833][ T2845] ? ____kasan_kmalloc+0xdc/0x110 [ 495.837822][ T2845] ? __kasan_kmalloc+0x9/0x10 [ 495.843129][ T2845] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 495.849116][ T2845] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 495.855493][ T2845] ? delete_node+0x759/0x7b0 [ 495.860088][ T2845] ? __kasan_check_read+0x11/0x20 [ 495.865551][ T2845] ? idr_replace+0x1c4/0x230 [ 495.870269][ T2845] ? idr_get_next+0x4b0/0x4b0 [ 495.875011][ T2845] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 495.880244][ T2845] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 495.885461][ T2845] css_populate_dir+0x137/0x370 [ 495.890303][ T2845] cgroup_apply_control_enable+0x8b9/0x12f0 [ 495.896186][ T2845] cgroup_apply_control+0x8e/0x7e0 [ 495.901659][ T2845] ? css_next_child+0x160/0x160 [ 495.906518][ T2845] ? stack_trace_save+0x12d/0x1f0 [ 495.911543][ T2845] ? io_schedule+0x120/0x120 [ 495.916238][ T2845] ? kernfs_fop_write_iter+0x15e/0x410 [ 495.922178][ T2845] ? __kasan_check_write+0x14/0x20 [ 495.927276][ T2845] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 495.932705][ T2845] cgroup_subtree_control_write+0xd19/0x1310 [ 495.939081][ T2845] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 495.945066][ T2845] ? __kasan_check_write+0x14/0x20 [ 495.950164][ T2845] ? _copy_from_iter+0x3fb/0xd60 [ 495.955114][ T2845] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 495.961214][ T2845] cgroup_file_write+0x28e/0x590 [ 495.966908][ T2845] ? cgroup_seqfile_stop+0xc0/0xc0 [ 495.972231][ T2845] ? mutex_trylock+0x180/0x180 [ 495.977085][ T2845] ? __kasan_check_write+0x14/0x20 [ 495.982434][ T2845] kernfs_fop_write_iter+0x2d0/0x410 [ 495.987837][ T2845] ? cgroup_seqfile_stop+0xc0/0xc0 [ 495.993055][ T2845] vfs_write+0xc4a/0xf80 [ 495.997296][ T2845] ? slab_free_freelist_hook+0xcc/0x1a0 [ 496.002929][ T2845] ? kernel_write+0x420/0x420 [ 496.007692][ T2845] ? do_sys_openat2+0x397/0x470 [ 496.012550][ T2845] ? __kasan_check_read+0x11/0x20 [ 496.017822][ T2845] ? __fdget_pos+0x27e/0x310 [ 496.022527][ T2845] ksys_write+0x198/0x2c0 [ 496.026873][ T2845] ? __ia32_sys_read+0x90/0x90 [ 496.032008][ T2845] ? debug_smp_processor_id+0x17/0x20 [ 496.037789][ T2845] __x64_sys_write+0x7b/0x90 [ 496.042441][ T2845] do_syscall_64+0x34/0x70 [ 496.046862][ T2845] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 496.052744][ T2845] RIP: 0033:0x7f48883727a9 [ 496.057156][ T2845] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 496.077655][ T2845] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 496.086382][ T2845] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 496.094347][ T2845] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 496.102978][ T2845] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 496.111069][ T2845] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 496.119035][ T2845] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002f [ 496.127386][ T2845] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 496.157309][ T2842] FAULT_INJECTION: forcing a failure. [ 496.157309][ T2842] name failslab, interval 1, probability 0, space 0, times 0 [ 496.170203][ T2842] CPU: 0 PID: 2842 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 496.180693][ T2842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 496.190823][ T2842] Call Trace: [ 496.194191][ T2842] dump_stack_lvl+0x1e2/0x24b [ 496.198854][ T2842] ? panic+0x7d7/0x7d7 [ 496.202996][ T2842] ? arch_stack_walk+0x106/0x140 [ 496.209174][ T2842] ? bfq_pos_tree_add_move+0x43e/0x43e [ 496.214701][ T2842] ? do_syscall_64+0x34/0x70 [ 496.219366][ T2842] dump_stack+0x15/0x17 [ 496.223621][ T2842] should_fail+0x3c0/0x510 [ 496.228110][ T2842] __should_failslab+0x9f/0xe0 [ 496.233072][ T2842] should_failslab+0x9/0x20 [ 496.237569][ T2842] kmem_cache_alloc+0x3f/0x300 [ 496.242499][ T2842] ? __kernfs_new_node+0xdb/0x6e0 [ 496.247596][ T2842] __kernfs_new_node+0xdb/0x6e0 [ 496.252447][ T2842] ? is_module_text_address+0xe1/0x140 [ 496.257903][ T2842] ? kernfs_new_node+0x170/0x170 [ 496.263100][ T2842] ? ptr_to_hashval+0x60/0x60 [ 496.267778][ T2842] ? arch_stack_walk+0xf8/0x140 [ 496.272761][ T2842] ? snprintf+0xd6/0x120 [ 496.277251][ T2842] kernfs_new_node+0x97/0x170 [ 496.281921][ T2842] __kernfs_create_file+0x4a/0x270 [ 496.287353][ T2842] cgroup_addrm_files+0xab8/0xfe0 [ 496.292641][ T2842] ? ____kasan_kmalloc+0xdc/0x110 [ 496.297685][ T2842] ? __kasan_kmalloc+0x9/0x10 [ 496.302378][ T2842] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 496.308099][ T2842] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 496.314532][ T2842] ? delete_node+0x759/0x7b0 [ 496.319120][ T2842] ? __kasan_check_read+0x11/0x20 [ 496.324493][ T2842] ? delete_node+0x759/0x7b0 [ 496.329424][ T2842] ? __kasan_check_write+0x14/0x20 [ 496.334676][ T2842] ? idr_replace+0x1c4/0x230 [ 496.339374][ T2842] ? idr_get_next+0x4b0/0x4b0 [ 496.344048][ T2842] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 496.349227][ T2842] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 496.354439][ T2842] css_populate_dir+0x137/0x370 [ 496.359280][ T2842] cgroup_apply_control_enable+0x8b9/0x12f0 [ 496.365179][ T2842] cgroup_apply_control+0x8e/0x7e0 [ 496.370299][ T2842] ? css_next_child+0x160/0x160 [ 496.375369][ T2842] ? stack_trace_save+0x12d/0x1f0 [ 496.380514][ T2842] ? io_schedule+0x120/0x120 [ 496.385188][ T2842] ? kernfs_fop_write_iter+0x15e/0x410 [ 496.390646][ T2842] ? __kasan_check_write+0x14/0x20 [ 496.395750][ T2842] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 496.401128][ T2842] cgroup_subtree_control_write+0xd19/0x1310 [ 496.407386][ T2842] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 496.413493][ T2842] ? __kasan_check_write+0x14/0x20 [ 496.418614][ T2842] ? _copy_from_iter+0x3fb/0xd60 [ 496.423637][ T2842] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 496.429732][ T2842] cgroup_file_write+0x28e/0x590 [ 496.434664][ T2842] ? cgroup_seqfile_stop+0xc0/0xc0 [ 496.439852][ T2842] ? mutex_trylock+0x180/0x180 [ 496.444624][ T2842] ? __kasan_check_write+0x14/0x20 [ 496.449727][ T2842] kernfs_fop_write_iter+0x2d0/0x410 [ 496.455014][ T2842] ? cgroup_seqfile_stop+0xc0/0xc0 [ 496.460105][ T2842] vfs_write+0xc4a/0xf80 [ 496.464623][ T2842] ? slab_free_freelist_hook+0xcc/0x1a0 [ 496.470543][ T2842] ? kernel_write+0x420/0x420 [ 496.475242][ T2842] ? do_sys_openat2+0x397/0x470 [ 496.480184][ T2842] ? __kasan_check_read+0x11/0x20 [ 496.485590][ T2842] ? __fdget_pos+0x27e/0x310 [ 496.490358][ T2842] ksys_write+0x198/0x2c0 [ 496.494892][ T2842] ? __ia32_sys_read+0x90/0x90 [ 496.499927][ T2842] ? debug_smp_processor_id+0x17/0x20 [ 496.506066][ T2842] __x64_sys_write+0x7b/0x90 [ 496.510851][ T2842] do_syscall_64+0x34/0x70 [ 496.515271][ T2842] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 496.522015][ T2842] RIP: 0033:0x7f48883727a9 [ 496.526785][ T2842] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 496.547258][ T2842] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 496.556096][ T2842] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 496.564204][ T2842] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 496.572599][ T2842] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 496.580567][ T2842] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 496.589096][ T2842] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001e [ 496.597510][ T2842] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 496.617124][ T2846] FAULT_INJECTION: forcing a failure. [ 496.617124][ T2846] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 496.630605][ T2846] CPU: 0 PID: 2846 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 496.641749][ T2846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 496.652245][ T2846] Call Trace: [ 496.655593][ T2846] dump_stack_lvl+0x1e2/0x24b [ 496.660522][ T2846] ? bfq_pos_tree_add_move+0x43e/0x43e [ 496.666004][ T2846] ? stack_trace_save+0x12d/0x1f0 [ 496.671210][ T2846] dump_stack+0x15/0x17 [ 496.675476][ T2846] should_fail+0x3c0/0x510 [ 496.680176][ T2846] should_fail_alloc_page+0x50/0x60 [ 496.685606][ T2846] __alloc_pages_nodemask+0x1c0/0x890 [ 496.691352][ T2846] ? __kasan_check_write+0x14/0x20 [ 496.696905][ T2846] ? delete_node+0x759/0x7b0 [ 496.701665][ T2846] ? mutex_trylock+0x180/0x180 [ 496.706688][ T2846] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 496.713273][ T2846] ? kernfs_xattr_get+0x80/0x90 [ 496.718693][ T2846] ? selinux_kernfs_init_security+0x1a8/0x760 [ 496.724937][ T2846] allocate_slab+0x78/0x540 [ 496.729427][ T2846] ___slab_alloc+0x131/0x2e0 [ 496.734018][ T2846] ? __kernfs_new_node+0xdb/0x6e0 [ 496.739050][ T2846] __slab_alloc+0x63/0xa0 [ 496.743380][ T2846] ? __kernfs_new_node+0xdb/0x6e0 [ 496.748695][ T2846] kmem_cache_alloc+0x1ef/0x300 [ 496.753725][ T2846] ? __kernfs_new_node+0xdb/0x6e0 [ 496.758744][ T2846] __kernfs_new_node+0xdb/0x6e0 [ 496.763671][ T2846] ? is_module_text_address+0xe1/0x140 [ 496.769418][ T2846] ? kernfs_new_node+0x170/0x170 [ 496.774532][ T2846] ? ptr_to_hashval+0x60/0x60 [ 496.779196][ T2846] ? arch_stack_walk+0xf8/0x140 [ 496.784225][ T2846] ? snprintf+0xd6/0x120 [ 496.788459][ T2846] kernfs_new_node+0x97/0x170 [ 496.793148][ T2846] __kernfs_create_file+0x4a/0x270 [ 496.798367][ T2846] cgroup_addrm_files+0xab8/0xfe0 [ 496.803509][ T2846] ? ____kasan_kmalloc+0xdc/0x110 [ 496.808522][ T2846] ? __kasan_kmalloc+0x9/0x10 [ 496.813283][ T2846] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 496.818815][ T2846] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 496.824967][ T2846] ? delete_node+0x759/0x7b0 [ 496.829642][ T2846] ? __kasan_check_read+0x11/0x20 [ 496.834868][ T2846] ? delete_node+0x759/0x7b0 [ 496.839486][ T2846] ? __kasan_check_write+0x14/0x20 [ 496.844715][ T2846] ? idr_replace+0x1c4/0x230 [ 496.849673][ T2846] ? idr_get_next+0x4b0/0x4b0 [ 496.854467][ T2846] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 496.859612][ T2846] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 496.865332][ T2846] css_populate_dir+0x137/0x370 [ 496.870713][ T2846] cgroup_apply_control_enable+0x8b9/0x12f0 [ 496.877334][ T2846] cgroup_apply_control+0x8e/0x7e0 [ 496.882546][ T2846] ? css_next_child+0x160/0x160 [ 496.887794][ T2846] ? stack_trace_save+0x12d/0x1f0 [ 496.892906][ T2846] ? io_schedule+0x120/0x120 [ 496.897669][ T2846] ? kernfs_fop_write_iter+0x15e/0x410 [ 496.903385][ T2846] ? __kasan_check_write+0x14/0x20 [ 496.908510][ T2846] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 496.913882][ T2846] cgroup_subtree_control_write+0xd19/0x1310 [ 496.920375][ T2846] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 496.926712][ T2846] ? __kasan_check_write+0x14/0x20 [ 496.932038][ T2846] ? _copy_from_iter+0x3fb/0xd60 [ 496.937014][ T2846] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 496.943193][ T2846] cgroup_file_write+0x28e/0x590 [ 496.948374][ T2846] ? cgroup_seqfile_stop+0xc0/0xc0 [ 496.953513][ T2846] ? mutex_trylock+0x180/0x180 [ 496.958317][ T2846] ? __kasan_check_write+0x14/0x20 [ 496.963755][ T2846] kernfs_fop_write_iter+0x2d0/0x410 [ 496.969925][ T2846] ? cgroup_seqfile_stop+0xc0/0xc0 [ 496.975057][ T2846] vfs_write+0xc4a/0xf80 [ 496.979708][ T2846] ? slab_free_freelist_hook+0xcc/0x1a0 [ 496.985531][ T2846] ? kernel_write+0x420/0x420 [ 496.990252][ T2846] ? do_sys_openat2+0x397/0x470 [ 496.995648][ T2846] ? __kasan_check_read+0x11/0x20 [ 497.000939][ T2846] ? __fdget_pos+0x27e/0x310 [ 497.005787][ T2846] ksys_write+0x198/0x2c0 [ 497.010692][ T2846] ? __ia32_sys_read+0x90/0x90 [ 497.015811][ T2846] ? debug_smp_processor_id+0x17/0x20 [ 497.021635][ T2846] __x64_sys_write+0x7b/0x90 [ 497.026405][ T2846] do_syscall_64+0x34/0x70 [ 497.031182][ T2846] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 497.037265][ T2846] RIP: 0033:0x7f48883727a9 [ 497.041758][ T2846] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 497.062841][ T2846] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 497.071512][ T2846] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 497.079917][ T2846] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 497.088142][ T2846] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 497.096290][ T2846] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 497.104607][ T2846] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000024 [ 497.157172][ T2847] FAULT_INJECTION: forcing a failure. [ 497.157172][ T2847] name failslab, interval 1, probability 0, space 0, times 0 [ 497.170415][ T2847] CPU: 1 PID: 2847 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 497.181608][ T2847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 497.192095][ T2847] Call Trace: [ 497.196865][ T2847] dump_stack_lvl+0x1e2/0x24b [ 497.202585][ T2847] ? bfq_pos_tree_add_move+0x43e/0x43e [ 497.208233][ T2847] ? arch_stack_walk+0x106/0x140 [ 497.213179][ T2847] ? do_syscall_64+0x34/0x70 [ 497.217916][ T2847] dump_stack+0x15/0x17 [ 497.222172][ T2847] should_fail+0x3c0/0x510 [ 497.226600][ T2847] ? __kernfs_new_node+0x99/0x6e0 [ 497.231703][ T2847] __should_failslab+0x9f/0xe0 [ 497.236674][ T2847] should_failslab+0x9/0x20 [ 497.241460][ T2847] __kmalloc_track_caller+0x5f/0x350 [ 497.246930][ T2847] kstrdup_const+0x55/0x90 [ 497.251347][ T2847] __kernfs_new_node+0x99/0x6e0 [ 497.256770][ T2847] ? is_module_text_address+0xe1/0x140 [ 497.262245][ T2847] ? kernfs_new_node+0x170/0x170 [ 497.267462][ T2847] ? ptr_to_hashval+0x60/0x60 [ 497.272125][ T2847] ? arch_stack_walk+0xf8/0x140 [ 497.277050][ T2847] ? snprintf+0xd6/0x120 [ 497.281499][ T2847] kernfs_new_node+0x97/0x170 [ 497.286385][ T2847] __kernfs_create_file+0x4a/0x270 [ 497.291499][ T2847] cgroup_addrm_files+0xab8/0xfe0 [ 497.296615][ T2847] ? ____kasan_kmalloc+0xdc/0x110 [ 497.301849][ T2847] ? __kasan_kmalloc+0x9/0x10 [ 497.307457][ T2847] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 497.314029][ T2847] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 497.321329][ T2847] ? delete_node+0x759/0x7b0 [ 497.326159][ T2847] ? __kasan_check_read+0x11/0x20 [ 497.331209][ T2847] ? delete_node+0x759/0x7b0 [ 497.335802][ T2847] ? __kasan_check_write+0x14/0x20 [ 497.341101][ T2847] ? idr_replace+0x1c4/0x230 [ 497.345703][ T2847] ? idr_get_next+0x4b0/0x4b0 [ 497.350689][ T2847] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 497.355809][ T2847] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 497.361079][ T2847] css_populate_dir+0x137/0x370 [ 497.365914][ T2847] cgroup_apply_control_enable+0x8b9/0x12f0 [ 497.371802][ T2847] cgroup_apply_control+0x8e/0x7e0 [ 497.377110][ T2847] ? css_next_child+0x160/0x160 [ 497.381944][ T2847] ? stack_trace_save+0x12d/0x1f0 [ 497.387148][ T2847] ? io_schedule+0x120/0x120 [ 497.392609][ T2847] ? kernfs_fop_write_iter+0x15e/0x410 [ 497.398170][ T2847] ? __kasan_check_write+0x14/0x20 [ 497.403374][ T2847] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 497.408767][ T2847] cgroup_subtree_control_write+0xd19/0x1310 [ 497.414752][ T2847] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 497.420722][ T2847] ? __kasan_check_write+0x14/0x20 [ 497.426266][ T2847] ? _copy_from_iter+0x3fb/0xd60 [ 497.431262][ T2847] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 497.437442][ T2847] cgroup_file_write+0x28e/0x590 [ 497.442368][ T2847] ? cgroup_seqfile_stop+0xc0/0xc0 [ 497.447852][ T2847] ? mutex_trylock+0x180/0x180 [ 497.452634][ T2847] ? __kasan_check_write+0x14/0x20 [ 497.457831][ T2847] kernfs_fop_write_iter+0x2d0/0x410 [ 497.463199][ T2847] ? cgroup_seqfile_stop+0xc0/0xc0 [ 497.468321][ T2847] vfs_write+0xc4a/0xf80 [ 497.472667][ T2847] ? slab_free_freelist_hook+0xcc/0x1a0 [ 497.478224][ T2847] ? kernel_write+0x420/0x420 [ 497.482893][ T2847] ? do_sys_openat2+0x397/0x470 [ 497.487730][ T2847] ? __kasan_check_read+0x11/0x20 [ 497.492950][ T2847] ? __fdget_pos+0x27e/0x310 [ 497.497783][ T2847] ksys_write+0x198/0x2c0 [ 497.502360][ T2847] ? __ia32_sys_read+0x90/0x90 [ 497.507311][ T2847] ? debug_smp_processor_id+0x17/0x20 [ 497.513022][ T2847] __x64_sys_write+0x7b/0x90 [ 497.517708][ T2847] do_syscall_64+0x34/0x70 [ 497.522361][ T2847] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 497.528656][ T2847] RIP: 0033:0x7f48883727a9 [ 497.533087][ T2847] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 497.552820][ T2847] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 497.561541][ T2847] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 497.569588][ T2847] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 497.577560][ T2847] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 497.585518][ T2847] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 497.593479][ T2847] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000020 [ 497.601585][ T2847] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 497.637248][ T2849] FAULT_INJECTION: forcing a failure. [ 497.637248][ T2849] name failslab, interval 1, probability 0, space 0, times 0 [ 497.650116][ T2849] CPU: 1 PID: 2849 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 497.660830][ T2849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 497.670885][ T2849] Call Trace: [ 497.674181][ T2849] dump_stack_lvl+0x1e2/0x24b [ 497.678954][ T2849] ? bfq_pos_tree_add_move+0x43e/0x43e [ 497.684420][ T2849] ? selinux_kernfs_init_security+0x1a8/0x760 [ 497.690567][ T2849] dump_stack+0x15/0x17 [ 497.694795][ T2849] should_fail+0x3c0/0x510 [ 497.699306][ T2849] ? __kernfs_new_node+0x99/0x6e0 [ 497.704335][ T2849] __should_failslab+0x9f/0xe0 [ 497.709105][ T2849] should_failslab+0x9/0x20 [ 497.713595][ T2849] __kmalloc_track_caller+0x5f/0x350 [ 497.718979][ T2849] kstrdup_const+0x55/0x90 [ 497.723497][ T2849] __kernfs_new_node+0x99/0x6e0 [ 497.728788][ T2849] ? is_module_text_address+0xe1/0x140 [ 497.734394][ T2849] ? kernfs_new_node+0x170/0x170 [ 497.739347][ T2849] ? ptr_to_hashval+0x60/0x60 [ 497.744023][ T2849] ? mutex_lock+0xb2/0x1e0 [ 497.748621][ T2849] ? snprintf+0xd6/0x120 [ 497.752880][ T2849] ? mutex_unlock+0x29/0xf0 [ 497.757388][ T2849] kernfs_new_node+0x97/0x170 [ 497.762774][ T2849] __kernfs_create_file+0x4a/0x270 [ 497.767880][ T2849] cgroup_addrm_files+0xab8/0xfe0 [ 497.773244][ T2849] ? ____kasan_kmalloc+0xdc/0x110 [ 497.778266][ T2849] ? __kasan_kmalloc+0x9/0x10 [ 497.783032][ T2849] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 497.788585][ T2849] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 497.794864][ T2849] ? delete_node+0x759/0x7b0 [ 497.799447][ T2849] ? __kasan_check_read+0x11/0x20 [ 497.804551][ T2849] ? idr_replace+0x1c4/0x230 [ 497.809393][ T2849] ? idr_get_next+0x4b0/0x4b0 [ 497.814141][ T2849] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 497.819465][ T2849] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 497.824983][ T2849] css_populate_dir+0x137/0x370 [ 497.830159][ T2849] cgroup_apply_control_enable+0x8b9/0x12f0 [ 497.836166][ T2849] cgroup_apply_control+0x8e/0x7e0 [ 497.841646][ T2849] ? css_next_child+0x160/0x160 [ 497.846825][ T2849] ? stack_trace_save+0x12d/0x1f0 [ 497.851946][ T2849] ? io_schedule+0x120/0x120 [ 497.857160][ T2849] ? kernfs_fop_write_iter+0x15e/0x410 [ 497.863586][ T2849] ? __kasan_check_write+0x14/0x20 [ 497.870201][ T2849] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 497.875860][ T2849] cgroup_subtree_control_write+0xd19/0x1310 [ 497.882040][ T2849] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 497.888006][ T2849] ? __kasan_check_write+0x14/0x20 [ 497.893102][ T2849] ? _copy_from_iter+0x3fb/0xd60 [ 497.898023][ T2849] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 497.904003][ T2849] cgroup_file_write+0x28e/0x590 [ 497.908922][ T2849] ? cgroup_seqfile_stop+0xc0/0xc0 [ 497.914015][ T2849] ? mutex_trylock+0x180/0x180 [ 497.918902][ T2849] ? __kasan_check_write+0x14/0x20 [ 497.924022][ T2849] kernfs_fop_write_iter+0x2d0/0x410 [ 497.929427][ T2849] ? cgroup_seqfile_stop+0xc0/0xc0 [ 497.934539][ T2849] vfs_write+0xc4a/0xf80 [ 497.939047][ T2849] ? slab_free_freelist_hook+0xcc/0x1a0 [ 497.944761][ T2849] ? kernel_write+0x420/0x420 [ 497.949428][ T2849] ? do_sys_openat2+0x397/0x470 [ 497.954278][ T2849] ? __kasan_check_read+0x11/0x20 [ 497.959525][ T2849] ? __fdget_pos+0x27e/0x310 [ 497.964108][ T2849] ksys_write+0x198/0x2c0 [ 497.968428][ T2849] ? __ia32_sys_read+0x90/0x90 [ 497.973187][ T2849] ? debug_smp_processor_id+0x17/0x20 [ 497.978551][ T2849] __x64_sys_write+0x7b/0x90 [ 497.983157][ T2849] do_syscall_64+0x34/0x70 [ 497.987757][ T2849] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 497.993997][ T2849] RIP: 0033:0x7f48883727a9 [ 497.998422][ T2849] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 498.019763][ T2849] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 498.031126][ T2849] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 498.040194][ T2849] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 498.049008][ T2849] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 498.057810][ T2849] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 498.066720][ T2849] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001f [ 498.074906][ T2849] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 498.117478][ T2852] FAULT_INJECTION: forcing a failure. [ 498.117478][ T2852] name failslab, interval 1, probability 0, space 0, times 0 [ 498.130331][ T2852] CPU: 0 PID: 2852 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 498.141417][ T2852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 498.151653][ T2852] Call Trace: [ 498.155126][ T2852] dump_stack_lvl+0x1e2/0x24b [ 498.159784][ T2852] ? panic+0x7d7/0x7d7 [ 498.163844][ T2852] ? bfq_pos_tree_add_move+0x43e/0x43e [ 498.169572][ T2852] ? selinux_kernfs_init_security+0x1a8/0x760 [ 498.175718][ T2852] dump_stack+0x15/0x17 [ 498.179880][ T2852] should_fail+0x3c0/0x510 [ 498.184286][ T2852] __should_failslab+0x9f/0xe0 [ 498.189051][ T2852] should_failslab+0x9/0x20 [ 498.193559][ T2852] kmem_cache_alloc+0x3f/0x300 [ 498.198403][ T2852] ? __kernfs_new_node+0xdb/0x6e0 [ 498.204281][ T2852] __kernfs_new_node+0xdb/0x6e0 [ 498.209721][ T2852] ? is_module_text_address+0xe1/0x140 [ 498.215641][ T2852] ? kernfs_new_node+0x170/0x170 [ 498.220661][ T2852] ? ptr_to_hashval+0x60/0x60 [ 498.225346][ T2852] ? arch_stack_walk+0xf8/0x140 [ 498.230286][ T2852] ? snprintf+0xd6/0x120 [ 498.234519][ T2852] kernfs_new_node+0x97/0x170 [ 498.239200][ T2852] __kernfs_create_file+0x4a/0x270 [ 498.244348][ T2852] cgroup_addrm_files+0xab8/0xfe0 [ 498.249413][ T2852] ? ____kasan_kmalloc+0xdc/0x110 [ 498.254461][ T2852] ? __kasan_kmalloc+0x9/0x10 [ 498.259133][ T2852] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 498.264767][ T2852] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 498.271031][ T2852] ? delete_node+0x759/0x7b0 [ 498.275858][ T2852] ? __kasan_check_read+0x11/0x20 [ 498.281416][ T2852] ? delete_node+0x759/0x7b0 [ 498.286104][ T2852] ? __kasan_check_write+0x14/0x20 [ 498.291476][ T2852] ? idr_replace+0x1c4/0x230 [ 498.296151][ T2852] ? idr_get_next+0x4b0/0x4b0 [ 498.300822][ T2852] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 498.306014][ T2852] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 498.311462][ T2852] css_populate_dir+0x137/0x370 [ 498.316481][ T2852] cgroup_apply_control_enable+0x8b9/0x12f0 [ 498.322364][ T2852] cgroup_apply_control+0x8e/0x7e0 [ 498.327555][ T2852] ? css_next_child+0x160/0x160 [ 498.332390][ T2852] ? stack_trace_save+0x12d/0x1f0 [ 498.337582][ T2852] ? io_schedule+0x120/0x120 [ 498.342175][ T2852] ? kernfs_fop_write_iter+0x15e/0x410 [ 498.347886][ T2852] ? __kasan_check_write+0x14/0x20 [ 498.353177][ T2852] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 498.358633][ T2852] cgroup_subtree_control_write+0xd19/0x1310 [ 498.364603][ T2852] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 498.370666][ T2852] ? __kasan_check_write+0x14/0x20 [ 498.375941][ T2852] ? _copy_from_iter+0x3fb/0xd60 [ 498.381004][ T2852] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 498.387636][ T2852] cgroup_file_write+0x28e/0x590 [ 498.392577][ T2852] ? cgroup_seqfile_stop+0xc0/0xc0 [ 498.397799][ T2852] ? mutex_trylock+0x180/0x180 [ 498.402569][ T2852] ? __kasan_check_write+0x14/0x20 [ 498.407874][ T2852] kernfs_fop_write_iter+0x2d0/0x410 [ 498.413374][ T2852] ? cgroup_seqfile_stop+0xc0/0xc0 [ 498.418619][ T2852] vfs_write+0xc4a/0xf80 [ 498.422857][ T2852] ? slab_free_freelist_hook+0xcc/0x1a0 [ 498.428404][ T2852] ? kernel_write+0x420/0x420 [ 498.433079][ T2852] ? do_sys_openat2+0x397/0x470 [ 498.438002][ T2852] ? __kasan_check_read+0x11/0x20 [ 498.443203][ T2852] ? __fdget_pos+0x27e/0x310 [ 498.447894][ T2852] ksys_write+0x198/0x2c0 [ 498.452227][ T2852] ? __ia32_sys_read+0x90/0x90 [ 498.456987][ T2852] ? debug_smp_processor_id+0x17/0x20 [ 498.462457][ T2852] __x64_sys_write+0x7b/0x90 [ 498.467046][ T2852] do_syscall_64+0x34/0x70 [ 498.471563][ T2852] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 498.477626][ T2852] RIP: 0033:0x7f48883727a9 [ 498.482207][ T2852] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 498.503549][ T2852] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 498.512826][ T2852] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 498.520922][ T2852] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 498.528989][ T2852] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 498.536966][ T2852] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 498.544938][ T2852] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000021 [ 498.553063][ T2852] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 498.607225][ T2851] FAULT_INJECTION: forcing a failure. [ 498.607225][ T2851] name failslab, interval 1, probability 0, space 0, times 0 [ 498.619890][ T2851] CPU: 1 PID: 2851 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 498.630497][ T2851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 498.640629][ T2851] Call Trace: [ 498.643913][ T2851] dump_stack_lvl+0x1e2/0x24b [ 498.648576][ T2851] ? bfq_pos_tree_add_move+0x43e/0x43e [ 498.654027][ T2851] ? selinux_kernfs_init_security+0x1a8/0x760 [ 498.660126][ T2851] dump_stack+0x15/0x17 [ 498.664488][ T2851] should_fail+0x3c0/0x510 [ 498.668922][ T2851] ? __kernfs_new_node+0x99/0x6e0 [ 498.674155][ T2851] __should_failslab+0x9f/0xe0 [ 498.679119][ T2851] should_failslab+0x9/0x20 [ 498.683628][ T2851] __kmalloc_track_caller+0x5f/0x350 [ 498.689018][ T2851] kstrdup_const+0x55/0x90 [ 498.693459][ T2851] __kernfs_new_node+0x99/0x6e0 [ 498.698400][ T2851] ? is_module_text_address+0xe1/0x140 [ 498.704056][ T2851] ? kernfs_new_node+0x170/0x170 [ 498.708978][ T2851] ? ptr_to_hashval+0x60/0x60 [ 498.714424][ T2851] ? mutex_lock+0xb2/0x1e0 [ 498.718824][ T2851] ? snprintf+0xd6/0x120 [ 498.723065][ T2851] ? mutex_unlock+0x29/0xf0 [ 498.727564][ T2851] kernfs_new_node+0x97/0x170 [ 498.732257][ T2851] __kernfs_create_file+0x4a/0x270 [ 498.737543][ T2851] cgroup_addrm_files+0xab8/0xfe0 [ 498.742726][ T2851] ? ____kasan_kmalloc+0xdc/0x110 [ 498.747749][ T2851] ? __kasan_kmalloc+0x9/0x10 [ 498.752547][ T2851] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 498.758107][ T2851] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 498.764250][ T2851] ? delete_node+0x759/0x7b0 [ 498.768833][ T2851] ? __kasan_check_read+0x11/0x20 [ 498.773954][ T2851] ? idr_replace+0x1c4/0x230 [ 498.778844][ T2851] ? idr_get_next+0x4b0/0x4b0 [ 498.783889][ T2851] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 498.789412][ T2851] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 498.794616][ T2851] css_populate_dir+0x137/0x370 [ 498.799476][ T2851] cgroup_apply_control_enable+0x8b9/0x12f0 [ 498.805496][ T2851] cgroup_apply_control+0x8e/0x7e0 [ 498.810598][ T2851] ? css_next_child+0x160/0x160 [ 498.815452][ T2851] ? io_schedule+0x120/0x120 [ 498.820038][ T2851] ? kernfs_fop_write_iter+0x15e/0x410 [ 498.825507][ T2851] ? __kasan_check_write+0x14/0x20 [ 498.830636][ T2851] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 498.836067][ T2851] cgroup_subtree_control_write+0xd19/0x1310 [ 498.842046][ T2851] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 498.848023][ T2851] ? __kasan_check_write+0x14/0x20 [ 498.853118][ T2851] ? _copy_from_iter+0x3fb/0xd60 [ 498.858057][ T2851] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 498.864033][ T2851] cgroup_file_write+0x28e/0x590 [ 498.868971][ T2851] ? cgroup_seqfile_stop+0xc0/0xc0 [ 498.874091][ T2851] ? mutex_trylock+0x180/0x180 [ 498.878980][ T2851] ? __kasan_check_write+0x14/0x20 [ 498.884244][ T2851] kernfs_fop_write_iter+0x2d0/0x410 [ 498.889626][ T2851] ? cgroup_seqfile_stop+0xc0/0xc0 [ 498.894779][ T2851] vfs_write+0xc4a/0xf80 [ 498.899021][ T2851] ? kernel_write+0x420/0x420 [ 498.904391][ T2851] ? do_sys_openat2+0x397/0x470 [ 498.909249][ T2851] ? __kasan_check_read+0x11/0x20 [ 498.914296][ T2851] ? __fdget_pos+0x27e/0x310 [ 498.918893][ T2851] ksys_write+0x198/0x2c0 [ 498.923237][ T2851] ? __ia32_sys_read+0x90/0x90 [ 498.928137][ T2851] ? debug_smp_processor_id+0x17/0x20 [ 498.933715][ T2851] __x64_sys_write+0x7b/0x90 [ 498.938543][ T2851] do_syscall_64+0x34/0x70 [ 498.942981][ T2851] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 498.949120][ T2851] RIP: 0033:0x7f48883727a9 [ 498.953610][ T2851] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 498.973640][ T2851] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 498.982036][ T2851] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 498.989993][ T2851] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 498.998034][ T2851] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 499.006291][ T2851] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 499.014553][ T2851] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000025 [ 499.022969][ T2851] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 499.067254][ T2850] FAULT_INJECTION: forcing a failure. [ 499.067254][ T2850] name failslab, interval 1, probability 0, space 0, times 0 [ 499.080113][ T2850] CPU: 1 PID: 2850 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 499.090706][ T2850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 499.101904][ T2850] Call Trace: [ 499.105385][ T2850] dump_stack_lvl+0x1e2/0x24b [ 499.110059][ T2850] ? panic+0x7d7/0x7d7 [ 499.114200][ T2850] ? bfq_pos_tree_add_move+0x43e/0x43e [ 499.119652][ T2850] ? selinux_kernfs_init_security+0x1a8/0x760 [ 499.125958][ T2850] dump_stack+0x15/0x17 [ 499.130915][ T2850] should_fail+0x3c0/0x510 [ 499.135454][ T2850] __should_failslab+0x9f/0xe0 [ 499.140333][ T2850] should_failslab+0x9/0x20 [ 499.145061][ T2850] kmem_cache_alloc+0x3f/0x300 [ 499.150001][ T2850] ? __kernfs_new_node+0xdb/0x6e0 [ 499.155035][ T2850] __kernfs_new_node+0xdb/0x6e0 [ 499.159877][ T2850] ? is_module_text_address+0xe1/0x140 [ 499.165337][ T2850] ? kernfs_new_node+0x170/0x170 [ 499.170464][ T2850] ? ptr_to_hashval+0x60/0x60 [ 499.175145][ T2850] ? arch_stack_walk+0xf8/0x140 [ 499.180145][ T2850] ? snprintf+0xd6/0x120 [ 499.184429][ T2850] kernfs_new_node+0x97/0x170 [ 499.189107][ T2850] __kernfs_create_file+0x4a/0x270 [ 499.194230][ T2850] cgroup_addrm_files+0xab8/0xfe0 [ 499.199269][ T2850] ? ____kasan_kmalloc+0xdc/0x110 [ 499.204294][ T2850] ? __kasan_kmalloc+0x9/0x10 [ 499.208974][ T2850] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 499.214530][ T2850] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 499.220796][ T2850] ? delete_node+0x759/0x7b0 [ 499.225485][ T2850] ? __kasan_check_read+0x11/0x20 [ 499.230505][ T2850] ? delete_node+0x759/0x7b0 [ 499.235103][ T2850] ? __kasan_check_write+0x14/0x20 [ 499.240201][ T2850] ? idr_replace+0x1c4/0x230 [ 499.244928][ T2850] ? idr_get_next+0x4b0/0x4b0 [ 499.249610][ T2850] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 499.254899][ T2850] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 499.260100][ T2850] css_populate_dir+0x137/0x370 [ 499.265060][ T2850] cgroup_apply_control_enable+0x8b9/0x12f0 [ 499.271128][ T2850] cgroup_apply_control+0x8e/0x7e0 [ 499.276334][ T2850] ? css_next_child+0x160/0x160 [ 499.281700][ T2850] ? stack_trace_save+0x12d/0x1f0 [ 499.287053][ T2850] ? io_schedule+0x120/0x120 [ 499.292020][ T2850] ? kernfs_fop_write_iter+0x15e/0x410 [ 499.297653][ T2850] ? __kasan_check_write+0x14/0x20 [ 499.302852][ T2850] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 499.308140][ T2850] cgroup_subtree_control_write+0xd19/0x1310 [ 499.314509][ T2850] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 499.320486][ T2850] ? __kasan_check_write+0x14/0x20 [ 499.325583][ T2850] ? _copy_from_iter+0x3fb/0xd60 [ 499.330655][ T2850] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 499.336803][ T2850] cgroup_file_write+0x28e/0x590 [ 499.341885][ T2850] ? cgroup_seqfile_stop+0xc0/0xc0 [ 499.347020][ T2850] ? mutex_trylock+0x180/0x180 [ 499.351895][ T2850] ? __kasan_check_write+0x14/0x20 [ 499.357296][ T2850] kernfs_fop_write_iter+0x2d0/0x410 [ 499.362688][ T2850] ? cgroup_seqfile_stop+0xc0/0xc0 [ 499.367790][ T2850] vfs_write+0xc4a/0xf80 [ 499.372149][ T2850] ? slab_free_freelist_hook+0xcc/0x1a0 [ 499.377682][ T2850] ? kernel_write+0x420/0x420 [ 499.382497][ T2850] ? do_sys_openat2+0x397/0x470 [ 499.387521][ T2850] ? __kasan_check_read+0x11/0x20 [ 499.392539][ T2850] ? __fdget_pos+0x27e/0x310 [ 499.397111][ T2850] ksys_write+0x198/0x2c0 [ 499.401426][ T2850] ? __ia32_sys_read+0x90/0x90 [ 499.406320][ T2850] ? debug_smp_processor_id+0x17/0x20 [ 499.411713][ T2850] __x64_sys_write+0x7b/0x90 [ 499.416290][ T2850] do_syscall_64+0x34/0x70 [ 499.420783][ T2850] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 499.426822][ T2850] RIP: 0033:0x7f48883727a9 [ 499.431230][ T2850] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 499.450969][ T2850] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 499.459390][ T2850] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 499.467512][ T2850] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 499.476165][ T2850] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 499.485179][ T2850] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 499.493449][ T2850] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001d [ 499.502589][ T2850] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 499.547317][ T2854] FAULT_INJECTION: forcing a failure. [ 499.547317][ T2854] name failslab, interval 1, probability 0, space 0, times 0 [ 499.560280][ T2854] CPU: 0 PID: 2854 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 499.570799][ T2854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 499.580950][ T2854] Call Trace: [ 499.584242][ T2854] dump_stack_lvl+0x1e2/0x24b [ 499.588911][ T2854] ? bfq_pos_tree_add_move+0x43e/0x43e [ 499.594360][ T2854] ? selinux_kernfs_init_security+0x1a8/0x760 [ 499.600412][ T2854] dump_stack+0x15/0x17 [ 499.604647][ T2854] should_fail+0x3c0/0x510 [ 499.609065][ T2854] ? __kernfs_new_node+0x99/0x6e0 [ 499.614107][ T2854] __should_failslab+0x9f/0xe0 [ 499.618908][ T2854] should_failslab+0x9/0x20 [ 499.623512][ T2854] __kmalloc_track_caller+0x5f/0x350 [ 499.628785][ T2854] kstrdup_const+0x55/0x90 [ 499.633186][ T2854] __kernfs_new_node+0x99/0x6e0 [ 499.638093][ T2854] ? is_module_text_address+0xe1/0x140 [ 499.643668][ T2854] ? kernfs_new_node+0x170/0x170 [ 499.648617][ T2854] ? ptr_to_hashval+0x60/0x60 [ 499.653430][ T2854] ? mutex_lock+0xb2/0x1e0 [ 499.657846][ T2854] ? snprintf+0xd6/0x120 [ 499.662102][ T2854] ? mutex_unlock+0x29/0xf0 [ 499.666617][ T2854] kernfs_new_node+0x97/0x170 [ 499.671507][ T2854] __kernfs_create_file+0x4a/0x270 [ 499.676664][ T2854] cgroup_addrm_files+0xab8/0xfe0 [ 499.681828][ T2854] ? ____kasan_kmalloc+0xdc/0x110 [ 499.686895][ T2854] ? __kasan_kmalloc+0x9/0x10 [ 499.691561][ T2854] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 499.697356][ T2854] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 499.703518][ T2854] ? delete_node+0x759/0x7b0 [ 499.708093][ T2854] ? __kasan_check_read+0x11/0x20 [ 499.713102][ T2854] ? idr_replace+0x1c4/0x230 [ 499.717676][ T2854] ? idr_get_next+0x4b0/0x4b0 [ 499.722363][ T2854] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 499.727461][ T2854] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 499.732637][ T2854] css_populate_dir+0x137/0x370 [ 499.737485][ T2854] cgroup_apply_control_enable+0x8b9/0x12f0 [ 499.743445][ T2854] cgroup_apply_control+0x8e/0x7e0 [ 499.748542][ T2854] ? css_next_child+0x160/0x160 [ 499.753371][ T2854] ? stack_trace_save+0x12d/0x1f0 [ 499.758519][ T2854] ? io_schedule+0x120/0x120 [ 499.763197][ T2854] ? kernfs_fop_write_iter+0x15e/0x410 [ 499.768761][ T2854] ? __kasan_check_write+0x14/0x20 [ 499.773871][ T2854] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 499.779429][ T2854] cgroup_subtree_control_write+0xd19/0x1310 [ 499.785606][ T2854] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 499.791604][ T2854] ? __kasan_check_write+0x14/0x20 [ 499.796815][ T2854] ? _copy_from_iter+0x3fb/0xd60 [ 499.801737][ T2854] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 499.807716][ T2854] cgroup_file_write+0x28e/0x590 [ 499.812820][ T2854] ? cgroup_seqfile_stop+0xc0/0xc0 [ 499.818001][ T2854] ? mutex_trylock+0x180/0x180 [ 499.822940][ T2854] ? __kasan_check_write+0x14/0x20 [ 499.828137][ T2854] kernfs_fop_write_iter+0x2d0/0x410 [ 499.833501][ T2854] ? cgroup_seqfile_stop+0xc0/0xc0 [ 499.838702][ T2854] vfs_write+0xc4a/0xf80 [ 499.842938][ T2854] ? slab_free_freelist_hook+0xcc/0x1a0 [ 499.848482][ T2854] ? kernel_write+0x420/0x420 [ 499.853398][ T2854] ? do_sys_openat2+0x397/0x470 [ 499.858245][ T2854] ? __kasan_check_read+0x11/0x20 [ 499.863260][ T2854] ? __fdget_pos+0x27e/0x310 [ 499.867875][ T2854] ksys_write+0x198/0x2c0 [ 499.872192][ T2854] ? __ia32_sys_read+0x90/0x90 [ 499.877201][ T2854] ? debug_smp_processor_id+0x17/0x20 [ 499.882570][ T2854] __x64_sys_write+0x7b/0x90 [ 499.887151][ T2854] do_syscall_64+0x34/0x70 [ 499.891570][ T2854] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 499.897708][ T2854] RIP: 0033:0x7f48883727a9 [ 499.902231][ T2854] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 499.922004][ T2854] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 499.930577][ T2854] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 499.938565][ T2854] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 499.946533][ T2854] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 499.954673][ T2854] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 499.962736][ T2854] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000022 [ 499.971117][ T2854] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 500.047364][ T2857] FAULT_INJECTION: forcing a failure. [ 500.047364][ T2857] name failslab, interval 1, probability 0, space 0, times 0 [ 500.060499][ T2857] CPU: 0 PID: 2857 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 500.070994][ T2857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 500.081227][ T2857] Call Trace: [ 500.084577][ T2857] dump_stack_lvl+0x1e2/0x24b [ 500.089296][ T2857] ? panic+0x7d7/0x7d7 [ 500.093405][ T2857] ? bfq_pos_tree_add_move+0x43e/0x43e [ 500.098867][ T2857] ? selinux_kernfs_init_security+0x1a8/0x760 [ 500.105004][ T2857] dump_stack+0x15/0x17 [ 500.109141][ T2857] should_fail+0x3c0/0x510 [ 500.113651][ T2857] __should_failslab+0x9f/0xe0 [ 500.118413][ T2857] should_failslab+0x9/0x20 [ 500.123016][ T2857] kmem_cache_alloc+0x3f/0x300 [ 500.127768][ T2857] ? __kernfs_new_node+0xdb/0x6e0 [ 500.132816][ T2857] __kernfs_new_node+0xdb/0x6e0 [ 500.137931][ T2857] ? is_module_text_address+0xe1/0x140 [ 500.143412][ T2857] ? kernfs_new_node+0x170/0x170 [ 500.148338][ T2857] ? ptr_to_hashval+0x60/0x60 [ 500.152996][ T2857] ? arch_stack_walk+0xf8/0x140 [ 500.157862][ T2857] ? snprintf+0xd6/0x120 [ 500.162194][ T2857] kernfs_new_node+0x97/0x170 [ 500.167070][ T2857] __kernfs_create_file+0x4a/0x270 [ 500.172268][ T2857] cgroup_addrm_files+0xab8/0xfe0 [ 500.177292][ T2857] ? ____kasan_kmalloc+0xdc/0x110 [ 500.182322][ T2857] ? __kasan_kmalloc+0x9/0x10 [ 500.187285][ T2857] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 500.193187][ T2857] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 500.199729][ T2857] ? delete_node+0x759/0x7b0 [ 500.204321][ T2857] ? __kasan_check_read+0x11/0x20 [ 500.209447][ T2857] ? delete_node+0x759/0x7b0 [ 500.214124][ T2857] ? __kasan_check_write+0x14/0x20 [ 500.219261][ T2857] ? idr_replace+0x1c4/0x230 [ 500.223845][ T2857] ? idr_get_next+0x4b0/0x4b0 [ 500.228530][ T2857] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 500.234060][ T2857] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 500.239270][ T2857] css_populate_dir+0x137/0x370 [ 500.244318][ T2857] cgroup_apply_control_enable+0x8b9/0x12f0 [ 500.250685][ T2857] cgroup_apply_control+0x8e/0x7e0 [ 500.255798][ T2857] ? css_next_child+0x160/0x160 [ 500.260709][ T2857] ? stack_trace_save+0x12d/0x1f0 [ 500.265734][ T2857] ? io_schedule+0x120/0x120 [ 500.270422][ T2857] ? kernfs_fop_write_iter+0x15e/0x410 [ 500.276021][ T2857] ? __kasan_check_write+0x14/0x20 [ 500.281140][ T2857] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 500.286507][ T2857] cgroup_subtree_control_write+0xd19/0x1310 [ 500.292476][ T2857] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 500.298452][ T2857] ? __kasan_check_write+0x14/0x20 [ 500.303684][ T2857] ? _copy_from_iter+0x3fb/0xd60 [ 500.308640][ T2857] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 500.315063][ T2857] cgroup_file_write+0x28e/0x590 [ 500.320170][ T2857] ? cgroup_seqfile_stop+0xc0/0xc0 [ 500.325406][ T2857] ? mutex_trylock+0x180/0x180 [ 500.330499][ T2857] ? __kasan_check_write+0x14/0x20 [ 500.335615][ T2857] kernfs_fop_write_iter+0x2d0/0x410 [ 500.341175][ T2857] ? cgroup_seqfile_stop+0xc0/0xc0 [ 500.346360][ T2857] vfs_write+0xc4a/0xf80 [ 500.350907][ T2857] ? slab_free_freelist_hook+0xcc/0x1a0 [ 500.356461][ T2857] ? kernel_write+0x420/0x420 [ 500.361296][ T2857] ? do_sys_openat2+0x397/0x470 [ 500.366147][ T2857] ? __kasan_check_read+0x11/0x20 [ 500.371218][ T2857] ? __fdget_pos+0x27e/0x310 [ 500.375891][ T2857] ksys_write+0x198/0x2c0 [ 500.380233][ T2857] ? __ia32_sys_read+0x90/0x90 [ 500.384996][ T2857] ? debug_smp_processor_id+0x17/0x20 [ 500.390357][ T2857] __x64_sys_write+0x7b/0x90 [ 500.394971][ T2857] do_syscall_64+0x34/0x70 [ 500.399484][ T2857] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 500.405625][ T2857] RIP: 0033:0x7f48883727a9 [ 500.410151][ T2857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 500.429755][ T2857] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 500.438180][ T2857] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 500.446518][ T2857] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 500.454602][ T2857] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 500.462561][ T2857] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 500.470720][ T2857] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000023 [ 500.478844][ T2857] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 500.517243][ T2858] FAULT_INJECTION: forcing a failure. [ 500.517243][ T2858] name failslab, interval 1, probability 0, space 0, times 0 [ 500.530409][ T2858] CPU: 1 PID: 2858 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 500.540968][ T2858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 500.551457][ T2858] Call Trace: [ 500.554746][ T2858] dump_stack_lvl+0x1e2/0x24b [ 500.559495][ T2858] ? bfq_pos_tree_add_move+0x43e/0x43e [ 500.565055][ T2858] ? selinux_kernfs_init_security+0x1a8/0x760 [ 500.571111][ T2858] dump_stack+0x15/0x17 [ 500.575268][ T2858] should_fail+0x3c0/0x510 [ 500.579881][ T2858] ? __kernfs_new_node+0x99/0x6e0 [ 500.585067][ T2858] __should_failslab+0x9f/0xe0 [ 500.589947][ T2858] should_failslab+0x9/0x20 [ 500.594443][ T2858] __kmalloc_track_caller+0x5f/0x350 [ 500.599906][ T2858] kstrdup_const+0x55/0x90 [ 500.604326][ T2858] __kernfs_new_node+0x99/0x6e0 [ 500.609164][ T2858] ? is_module_text_address+0xe1/0x140 [ 500.614626][ T2858] ? kernfs_new_node+0x170/0x170 [ 500.619546][ T2858] ? ptr_to_hashval+0x60/0x60 [ 500.624224][ T2858] ? mutex_lock+0xb2/0x1e0 [ 500.628618][ T2858] ? snprintf+0xd6/0x120 [ 500.632856][ T2858] ? mutex_unlock+0x29/0xf0 [ 500.637464][ T2858] kernfs_new_node+0x97/0x170 [ 500.642276][ T2858] __kernfs_create_file+0x4a/0x270 [ 500.647525][ T2858] cgroup_addrm_files+0xab8/0xfe0 [ 500.652615][ T2858] ? ____kasan_kmalloc+0xdc/0x110 [ 500.657626][ T2858] ? __kasan_kmalloc+0x9/0x10 [ 500.662289][ T2858] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 500.668028][ T2858] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 500.674272][ T2858] ? delete_node+0x759/0x7b0 [ 500.678867][ T2858] ? __kasan_check_read+0x11/0x20 [ 500.683916][ T2858] ? idr_replace+0x1c4/0x230 [ 500.688593][ T2858] ? idr_get_next+0x4b0/0x4b0 [ 500.693300][ T2858] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 500.698362][ T2858] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 500.703547][ T2858] css_populate_dir+0x137/0x370 [ 500.708381][ T2858] cgroup_apply_control_enable+0x8b9/0x12f0 [ 500.714291][ T2858] cgroup_apply_control+0x8e/0x7e0 [ 500.719414][ T2858] ? css_next_child+0x160/0x160 [ 500.724529][ T2858] ? stack_trace_save+0x12d/0x1f0 [ 500.729631][ T2858] ? io_schedule+0x120/0x120 [ 500.734208][ T2858] ? kernfs_fop_write_iter+0x15e/0x410 [ 500.739659][ T2858] ? __kasan_check_write+0x14/0x20 [ 500.744929][ T2858] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 500.750218][ T2858] cgroup_subtree_control_write+0xd19/0x1310 [ 500.756399][ T2858] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 500.762454][ T2858] ? __kasan_check_write+0x14/0x20 [ 500.767551][ T2858] ? _copy_from_iter+0x3fb/0xd60 [ 500.772563][ T2858] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 500.778633][ T2858] cgroup_file_write+0x28e/0x590 [ 500.783561][ T2858] ? cgroup_seqfile_stop+0xc0/0xc0 [ 500.788665][ T2858] ? mutex_trylock+0x180/0x180 [ 500.793660][ T2858] ? __kasan_check_write+0x14/0x20 [ 500.799196][ T2858] kernfs_fop_write_iter+0x2d0/0x410 [ 500.804511][ T2858] ? cgroup_seqfile_stop+0xc0/0xc0 [ 500.809723][ T2858] vfs_write+0xc4a/0xf80 [ 500.813994][ T2858] ? slab_free_freelist_hook+0xcc/0x1a0 [ 500.819731][ T2858] ? kernel_write+0x420/0x420 [ 500.824540][ T2858] ? do_sys_openat2+0x397/0x470 [ 500.829411][ T2858] ? __kasan_check_read+0x11/0x20 [ 500.834440][ T2858] ? __fdget_pos+0x27e/0x310 [ 500.839157][ T2858] ksys_write+0x198/0x2c0 [ 500.843929][ T2858] ? __ia32_sys_read+0x90/0x90 [ 500.848902][ T2858] ? debug_smp_processor_id+0x17/0x20 [ 500.854422][ T2858] __x64_sys_write+0x7b/0x90 [ 500.859010][ T2858] do_syscall_64+0x34/0x70 [ 500.863433][ T2858] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 500.869312][ T2858] RIP: 0033:0x7f48883727a9 [ 500.873827][ T2858] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 500.893551][ T2858] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 500.902050][ T2858] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 500.910118][ T2858] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 500.918218][ T2858] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 500.926465][ T2858] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 500.934563][ T2858] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000022 [ 500.942864][ T2858] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 500.977430][ T2859] FAULT_INJECTION: forcing a failure. [ 500.977430][ T2859] name failslab, interval 1, probability 0, space 0, times 0 [ 500.990170][ T2859] CPU: 0 PID: 2859 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 501.000853][ T2859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 501.010915][ T2859] Call Trace: [ 501.014383][ T2859] dump_stack_lvl+0x1e2/0x24b [ 501.019077][ T2859] ? bfq_pos_tree_add_move+0x43e/0x43e [ 501.024539][ T2859] ? selinux_kernfs_init_security+0x1a8/0x760 [ 501.030767][ T2859] dump_stack+0x15/0x17 [ 501.035444][ T2859] should_fail+0x3c0/0x510 [ 501.040002][ T2859] ? __kernfs_new_node+0x99/0x6e0 [ 501.045147][ T2859] __should_failslab+0x9f/0xe0 [ 501.049938][ T2859] should_failslab+0x9/0x20 [ 501.054437][ T2859] __kmalloc_track_caller+0x5f/0x350 [ 501.059733][ T2859] kstrdup_const+0x55/0x90 [ 501.064220][ T2859] __kernfs_new_node+0x99/0x6e0 [ 501.069156][ T2859] ? is_module_text_address+0xe1/0x140 [ 501.074878][ T2859] ? kernfs_new_node+0x170/0x170 [ 501.079830][ T2859] ? ptr_to_hashval+0x60/0x60 [ 501.084580][ T2859] ? mutex_lock+0xb2/0x1e0 [ 501.088980][ T2859] ? snprintf+0xd6/0x120 [ 501.093221][ T2859] ? mutex_unlock+0x29/0xf0 [ 501.097725][ T2859] kernfs_new_node+0x97/0x170 [ 501.102411][ T2859] __kernfs_create_file+0x4a/0x270 [ 501.107600][ T2859] cgroup_addrm_files+0xab8/0xfe0 [ 501.112613][ T2859] ? ____kasan_kmalloc+0xdc/0x110 [ 501.117782][ T2859] ? __kasan_kmalloc+0x9/0x10 [ 501.122844][ T2859] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 501.128501][ T2859] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 501.134741][ T2859] ? delete_node+0x759/0x7b0 [ 501.139454][ T2859] ? __kasan_check_read+0x11/0x20 [ 501.144492][ T2859] ? idr_replace+0x1c4/0x230 [ 501.149081][ T2859] ? idr_get_next+0x4b0/0x4b0 [ 501.153942][ T2859] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 501.158947][ T2859] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 501.164126][ T2859] css_populate_dir+0x137/0x370 [ 501.168981][ T2859] cgroup_apply_control_enable+0x8b9/0x12f0 [ 501.174962][ T2859] cgroup_apply_control+0x8e/0x7e0 [ 501.180203][ T2859] ? css_next_child+0x160/0x160 [ 501.185045][ T2859] ? stack_trace_save+0x12d/0x1f0 [ 501.190076][ T2859] ? io_schedule+0x120/0x120 [ 501.194679][ T2859] ? kernfs_fop_write_iter+0x15e/0x410 [ 501.200132][ T2859] ? __kasan_check_write+0x14/0x20 [ 501.205428][ T2859] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 501.210709][ T2859] cgroup_subtree_control_write+0xd19/0x1310 [ 501.216715][ T2859] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 501.222715][ T2859] ? __kasan_check_write+0x14/0x20 [ 501.227915][ T2859] ? _copy_from_iter+0x3fb/0xd60 [ 501.232896][ T2859] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 501.238895][ T2859] cgroup_file_write+0x28e/0x590 [ 501.243809][ T2859] ? cgroup_seqfile_stop+0xc0/0xc0 [ 501.248958][ T2859] ? mutex_trylock+0x180/0x180 [ 501.253714][ T2859] ? __kasan_check_write+0x14/0x20 [ 501.258920][ T2859] kernfs_fop_write_iter+0x2d0/0x410 [ 501.264304][ T2859] ? cgroup_seqfile_stop+0xc0/0xc0 [ 501.269404][ T2859] vfs_write+0xc4a/0xf80 [ 501.273712][ T2859] ? slab_free_freelist_hook+0xcc/0x1a0 [ 501.279505][ T2859] ? kernel_write+0x420/0x420 [ 501.284198][ T2859] ? do_sys_openat2+0x397/0x470 [ 501.289181][ T2859] ? __kasan_check_read+0x11/0x20 [ 501.294628][ T2859] ? __fdget_pos+0x27e/0x310 [ 501.299226][ T2859] ksys_write+0x198/0x2c0 [ 501.303566][ T2859] ? __ia32_sys_read+0x90/0x90 [ 501.308330][ T2859] ? debug_smp_processor_id+0x17/0x20 [ 501.313823][ T2859] __x64_sys_write+0x7b/0x90 [ 501.318503][ T2859] do_syscall_64+0x34/0x70 [ 501.322912][ T2859] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 501.328815][ T2859] RIP: 0033:0x7f48883727a9 [ 501.333300][ T2859] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 501.353091][ T2859] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 501.361493][ T2859] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 501.369443][ T2859] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 501.377477][ T2859] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 501.385519][ T2859] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 501.393506][ T2859] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000024 [ 501.401800][ T2859] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 501.437320][ T2848] FAULT_INJECTION: forcing a failure. [ 501.437320][ T2848] name failslab, interval 1, probability 0, space 0, times 0 [ 501.450419][ T2848] CPU: 1 PID: 2848 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 501.461080][ T2848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 501.471705][ T2848] Call Trace: [ 501.475153][ T2848] dump_stack_lvl+0x1e2/0x24b [ 501.479877][ T2848] ? bfq_pos_tree_add_move+0x43e/0x43e [ 501.485422][ T2848] ? selinux_kernfs_init_security+0x1a8/0x760 [ 501.491483][ T2848] dump_stack+0x15/0x17 [ 501.495810][ T2848] should_fail+0x3c0/0x510 [ 501.500365][ T2848] ? __kernfs_new_node+0x99/0x6e0 [ 501.505391][ T2848] __should_failslab+0x9f/0xe0 [ 501.510161][ T2848] should_failslab+0x9/0x20 [ 501.514750][ T2848] __kmalloc_track_caller+0x5f/0x350 [ 501.520159][ T2848] kstrdup_const+0x55/0x90 [ 501.524663][ T2848] __kernfs_new_node+0x99/0x6e0 [ 501.529639][ T2848] ? is_module_text_address+0xe1/0x140 [ 501.535226][ T2848] ? kernfs_new_node+0x170/0x170 [ 501.540255][ T2848] ? ptr_to_hashval+0x60/0x60 [ 501.544934][ T2848] ? mutex_lock+0xb2/0x1e0 [ 501.549360][ T2848] ? snprintf+0xd6/0x120 [ 501.553586][ T2848] ? mutex_unlock+0x29/0xf0 [ 501.558116][ T2848] kernfs_new_node+0x97/0x170 [ 501.562811][ T2848] __kernfs_create_file+0x4a/0x270 [ 501.568119][ T2848] cgroup_addrm_files+0xab8/0xfe0 [ 501.573576][ T2848] ? ____kasan_kmalloc+0xdc/0x110 [ 501.578593][ T2848] ? __kasan_kmalloc+0x9/0x10 [ 501.583353][ T2848] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 501.588972][ T2848] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 501.595131][ T2848] ? delete_node+0x759/0x7b0 [ 501.599724][ T2848] ? __kasan_check_read+0x11/0x20 [ 501.604747][ T2848] ? idr_replace+0x1c4/0x230 [ 501.609347][ T2848] ? idr_get_next+0x4b0/0x4b0 [ 501.614275][ T2848] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 501.619298][ T2848] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 501.624576][ T2848] css_populate_dir+0x137/0x370 [ 501.629677][ T2848] cgroup_apply_control_enable+0x8b9/0x12f0 [ 501.635580][ T2848] cgroup_apply_control+0x8e/0x7e0 [ 501.640695][ T2848] ? css_next_child+0x160/0x160 [ 501.645537][ T2848] ? stack_trace_save+0x12d/0x1f0 [ 501.650541][ T2848] ? io_schedule+0x120/0x120 [ 501.655115][ T2848] ? kernfs_fop_write_iter+0x15e/0x410 [ 501.660554][ T2848] ? __kasan_check_write+0x14/0x20 [ 501.665644][ T2848] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 501.670952][ T2848] cgroup_subtree_control_write+0xd19/0x1310 [ 501.676928][ T2848] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 501.682899][ T2848] ? __kasan_check_write+0x14/0x20 [ 501.687998][ T2848] ? _copy_from_iter+0x3fb/0xd60 [ 501.692933][ T2848] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 501.698893][ T2848] cgroup_file_write+0x28e/0x590 [ 501.703811][ T2848] ? cgroup_seqfile_stop+0xc0/0xc0 [ 501.708990][ T2848] ? mutex_trylock+0x180/0x180 [ 501.714000][ T2848] ? __kasan_check_write+0x14/0x20 [ 501.719851][ T2848] kernfs_fop_write_iter+0x2d0/0x410 [ 501.725497][ T2848] ? cgroup_seqfile_stop+0xc0/0xc0 [ 501.730764][ T2848] vfs_write+0xc4a/0xf80 [ 501.735284][ T2848] ? slab_free_freelist_hook+0xcc/0x1a0 [ 501.740996][ T2848] ? kernel_write+0x420/0x420 [ 501.745681][ T2848] ? do_sys_openat2+0x397/0x470 [ 501.751139][ T2848] ? __kasan_check_read+0x11/0x20 [ 501.756164][ T2848] ? __fdget_pos+0x27e/0x310 [ 501.761122][ T2848] ksys_write+0x198/0x2c0 [ 501.765456][ T2848] ? __ia32_sys_read+0x90/0x90 [ 501.770593][ T2848] ? debug_smp_processor_id+0x17/0x20 [ 501.776246][ T2848] __x64_sys_write+0x7b/0x90 [ 501.781039][ T2848] do_syscall_64+0x34/0x70 [ 501.785562][ T2848] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 501.792232][ T2848] RIP: 0033:0x7f48883727a9 [ 501.796635][ T2848] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 501.817554][ T2848] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 501.825962][ T2848] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 501.834179][ T2848] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 501.842723][ T2848] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 501.851486][ T2848] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 501.859857][ T2848] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000030 [ 501.868341][ T2848] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 501.897051][ T2860] FAULT_INJECTION: forcing a failure. [ 501.897051][ T2860] name failslab, interval 1, probability 0, space 0, times 0 [ 501.909944][ T2860] CPU: 1 PID: 2860 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 501.920705][ T2860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 501.931737][ T2860] Call Trace: [ 501.935288][ T2860] dump_stack_lvl+0x1e2/0x24b [ 501.939959][ T2860] ? bfq_pos_tree_add_move+0x43e/0x43e [ 501.945424][ T2860] ? stack_trace_save+0x1f0/0x1f0 [ 501.950466][ T2860] ? arch_stack_walk+0x106/0x140 [ 501.955391][ T2860] dump_stack+0x15/0x17 [ 501.959688][ T2860] should_fail+0x3c0/0x510 [ 501.964089][ T2860] ? __kernfs_new_node+0x99/0x6e0 [ 501.969099][ T2860] __should_failslab+0x9f/0xe0 [ 501.973849][ T2860] should_failslab+0x9/0x20 [ 501.978334][ T2860] __kmalloc_track_caller+0x5f/0x350 [ 501.983636][ T2860] kstrdup_const+0x55/0x90 [ 501.988064][ T2860] __kernfs_new_node+0x99/0x6e0 [ 501.992933][ T2860] ? is_module_text_address+0xe1/0x140 [ 501.998387][ T2860] ? kernfs_new_node+0x170/0x170 [ 502.003325][ T2860] ? ptr_to_hashval+0x60/0x60 [ 502.008010][ T2860] ? arch_stack_walk+0xf8/0x140 [ 502.012844][ T2860] ? snprintf+0xd6/0x120 [ 502.017157][ T2860] kernfs_new_node+0x97/0x170 [ 502.021931][ T2860] __kernfs_create_file+0x4a/0x270 [ 502.027055][ T2860] cgroup_addrm_files+0xab8/0xfe0 [ 502.032441][ T2860] ? ____kasan_kmalloc+0xdc/0x110 [ 502.037563][ T2860] ? __kasan_kmalloc+0x9/0x10 [ 502.042387][ T2860] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 502.048117][ T2860] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 502.054362][ T2860] ? delete_node+0x759/0x7b0 [ 502.059159][ T2860] ? __kasan_check_read+0x11/0x20 [ 502.064307][ T2860] ? delete_node+0x759/0x7b0 [ 502.069170][ T2860] ? __kasan_check_write+0x14/0x20 [ 502.074289][ T2860] ? idr_replace+0x1c4/0x230 [ 502.079087][ T2860] ? idr_get_next+0x4b0/0x4b0 [ 502.083785][ T2860] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 502.088878][ T2860] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 502.094193][ T2860] css_populate_dir+0x137/0x370 [ 502.099054][ T2860] cgroup_apply_control_enable+0x8b9/0x12f0 [ 502.105021][ T2860] cgroup_apply_control+0x8e/0x7e0 [ 502.110117][ T2860] ? css_next_child+0x160/0x160 [ 502.115388][ T2860] ? stack_trace_save+0x12d/0x1f0 [ 502.120408][ T2860] ? io_schedule+0x120/0x120 [ 502.125181][ T2860] ? kernfs_fop_write_iter+0x15e/0x410 [ 502.130818][ T2860] ? __kasan_check_write+0x14/0x20 [ 502.136067][ T2860] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 502.141534][ T2860] cgroup_subtree_control_write+0xd19/0x1310 [ 502.147630][ T2860] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 502.153780][ T2860] ? __kasan_check_write+0x14/0x20 [ 502.159071][ T2860] ? _copy_from_iter+0x3fb/0xd60 [ 502.164118][ T2860] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 502.170208][ T2860] cgroup_file_write+0x28e/0x590 [ 502.175152][ T2860] ? cgroup_seqfile_stop+0xc0/0xc0 [ 502.180267][ T2860] ? mutex_trylock+0x180/0x180 [ 502.185124][ T2860] ? __kasan_check_write+0x14/0x20 [ 502.190240][ T2860] kernfs_fop_write_iter+0x2d0/0x410 [ 502.195556][ T2860] ? cgroup_seqfile_stop+0xc0/0xc0 [ 502.200673][ T2860] vfs_write+0xc4a/0xf80 [ 502.205035][ T2860] ? slab_free_freelist_hook+0xcc/0x1a0 [ 502.210942][ T2860] ? kernel_write+0x420/0x420 [ 502.215616][ T2860] ? do_sys_openat2+0x397/0x470 [ 502.220557][ T2860] ? __kasan_check_read+0x11/0x20 [ 502.225567][ T2860] ? __fdget_pos+0x27e/0x310 [ 502.230141][ T2860] ksys_write+0x198/0x2c0 [ 502.234449][ T2860] ? __ia32_sys_read+0x90/0x90 [ 502.239212][ T2860] ? debug_smp_processor_id+0x17/0x20 [ 502.244576][ T2860] __x64_sys_write+0x7b/0x90 [ 502.249253][ T2860] do_syscall_64+0x34/0x70 [ 502.253670][ T2860] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 502.259577][ T2860] RIP: 0033:0x7f48883727a9 [ 502.264171][ T2860] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 502.283860][ T2860] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 502.292416][ T2860] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 502.300679][ T2860] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 502.309081][ T2860] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 502.317394][ T2860] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 502.325480][ T2860] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000023 [ 502.333796][ T2860] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 502.377351][ T2855] FAULT_INJECTION: forcing a failure. [ 502.377351][ T2855] name failslab, interval 1, probability 0, space 0, times 0 [ 502.390415][ T2855] CPU: 1 PID: 2855 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 502.401019][ T2855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 502.411267][ T2855] Call Trace: [ 502.414567][ T2855] dump_stack_lvl+0x1e2/0x24b [ 502.419231][ T2855] ? bfq_pos_tree_add_move+0x43e/0x43e [ 502.424696][ T2855] dump_stack+0x15/0x17 [ 502.428838][ T2855] should_fail+0x3c0/0x510 [ 502.433237][ T2855] __should_failslab+0x9f/0xe0 [ 502.438179][ T2855] should_failslab+0x9/0x20 [ 502.442671][ T2855] kmem_cache_alloc+0x3f/0x300 [ 502.447518][ T2855] ? radix_tree_node_alloc+0x194/0x3c0 [ 502.453128][ T2855] radix_tree_node_alloc+0x194/0x3c0 [ 502.458535][ T2855] ? kernfs_new_node+0x97/0x170 [ 502.463383][ T2855] ? __kernfs_create_file+0x4a/0x270 [ 502.468667][ T2855] ? cgroup_addrm_files+0xab8/0xfe0 [ 502.474013][ T2855] ? cgroup_apply_control_enable+0x8b9/0x12f0 [ 502.480086][ T2855] idr_get_free+0x2d8/0x990 [ 502.484597][ T2855] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 502.490836][ T2855] idr_alloc_cyclic+0x1ef/0x5d0 [ 502.495671][ T2855] ? idr_alloc+0x2f0/0x2f0 [ 502.500103][ T2855] ? __kasan_check_write+0x14/0x20 [ 502.505199][ T2855] ? _raw_spin_lock+0xa3/0x1b0 [ 502.509967][ T2855] ? __radix_tree_preload+0x361/0x3e0 [ 502.515327][ T2855] ? kmem_cache_alloc+0x1a4/0x300 [ 502.520343][ T2855] __kernfs_new_node+0x124/0x6e0 [ 502.525266][ T2855] ? is_module_text_address+0xe1/0x140 [ 502.530719][ T2855] ? kernfs_new_node+0x170/0x170 [ 502.535858][ T2855] ? ptr_to_hashval+0x60/0x60 [ 502.540667][ T2855] ? arch_stack_walk+0xf8/0x140 [ 502.545682][ T2855] ? snprintf+0xd6/0x120 [ 502.550272][ T2855] kernfs_new_node+0x97/0x170 [ 502.555048][ T2855] __kernfs_create_file+0x4a/0x270 [ 502.560163][ T2855] cgroup_addrm_files+0xab8/0xfe0 [ 502.565173][ T2855] ? ____kasan_kmalloc+0xdc/0x110 [ 502.570209][ T2855] ? __kasan_kmalloc+0x9/0x10 [ 502.574872][ T2855] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 502.580479][ T2855] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 502.586755][ T2855] ? delete_node+0x759/0x7b0 [ 502.591358][ T2855] ? __kasan_check_read+0x11/0x20 [ 502.596499][ T2855] ? delete_node+0x759/0x7b0 [ 502.601097][ T2855] ? __kasan_check_write+0x14/0x20 [ 502.606203][ T2855] ? idr_replace+0x1c4/0x230 [ 502.610913][ T2855] ? idr_get_next+0x4b0/0x4b0 [ 502.615588][ T2855] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 502.620613][ T2855] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 502.625896][ T2855] css_populate_dir+0x137/0x370 [ 502.630786][ T2855] cgroup_apply_control_enable+0x8b9/0x12f0 [ 502.636666][ T2855] cgroup_apply_control+0x8e/0x7e0 [ 502.641766][ T2855] ? css_next_child+0x160/0x160 [ 502.646900][ T2855] ? io_schedule+0x120/0x120 [ 502.651480][ T2855] ? kernfs_fop_write_iter+0x15e/0x410 [ 502.657477][ T2855] ? __kasan_check_write+0x14/0x20 [ 502.662717][ T2855] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 502.668006][ T2855] cgroup_subtree_control_write+0xd19/0x1310 [ 502.674079][ T2855] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 502.680068][ T2855] ? __kasan_check_write+0x14/0x20 [ 502.685184][ T2855] ? _copy_from_iter+0x3fb/0xd60 [ 502.690120][ T2855] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 502.696119][ T2855] cgroup_file_write+0x28e/0x590 [ 502.701260][ T2855] ? cgroup_seqfile_stop+0xc0/0xc0 [ 502.706751][ T2855] ? mutex_trylock+0x180/0x180 [ 502.711511][ T2855] ? __kasan_check_write+0x14/0x20 [ 502.716622][ T2855] kernfs_fop_write_iter+0x2d0/0x410 [ 502.721918][ T2855] ? cgroup_seqfile_stop+0xc0/0xc0 [ 502.727175][ T2855] vfs_write+0xc4a/0xf80 [ 502.731514][ T2855] ? kernel_write+0x420/0x420 [ 502.736172][ T2855] ? do_sys_openat2+0x397/0x470 [ 502.741269][ T2855] ? __kasan_check_read+0x11/0x20 [ 502.746287][ T2855] ? __fdget_pos+0x27e/0x310 [ 502.750984][ T2855] ksys_write+0x198/0x2c0 [ 502.755421][ T2855] ? __kasan_check_write+0x14/0x20 [ 502.760529][ T2855] ? __ia32_sys_read+0x90/0x90 [ 502.765348][ T2855] ? debug_smp_processor_id+0x17/0x20 [ 502.770839][ T2855] __x64_sys_write+0x7b/0x90 [ 502.775431][ T2855] do_syscall_64+0x34/0x70 [ 502.780437][ T2855] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 502.786333][ T2855] RIP: 0033:0x7f48883727a9 [ 502.790910][ T2855] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 502.810661][ T2855] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 502.819153][ T2855] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 502.827108][ T2855] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 502.835064][ T2855] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 502.843220][ T2855] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 502.851182][ T2855] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000026 [ 502.897714][ T2856] FAULT_INJECTION: forcing a failure. [ 502.897714][ T2856] name failslab, interval 1, probability 0, space 0, times 0 [ 502.910826][ T2856] CPU: 1 PID: 2856 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 502.921235][ T2856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 502.931483][ T2856] Call Trace: [ 502.934774][ T2856] dump_stack_lvl+0x1e2/0x24b [ 502.939448][ T2856] ? bfq_pos_tree_add_move+0x43e/0x43e [ 502.945100][ T2856] ? selinux_kernfs_init_security+0x1a8/0x760 [ 502.951198][ T2856] dump_stack+0x15/0x17 [ 502.955368][ T2856] should_fail+0x3c0/0x510 [ 502.959783][ T2856] ? __kernfs_new_node+0x99/0x6e0 [ 502.964796][ T2856] __should_failslab+0x9f/0xe0 [ 502.969544][ T2856] should_failslab+0x9/0x20 [ 502.974053][ T2856] __kmalloc_track_caller+0x5f/0x350 [ 502.979331][ T2856] kstrdup_const+0x55/0x90 [ 502.983743][ T2856] __kernfs_new_node+0x99/0x6e0 [ 502.988591][ T2856] ? is_module_text_address+0xe1/0x140 [ 502.994038][ T2856] ? kernfs_new_node+0x170/0x170 [ 502.999044][ T2856] ? ptr_to_hashval+0x60/0x60 [ 503.003746][ T2856] ? mutex_lock+0xb2/0x1e0 [ 503.008155][ T2856] ? snprintf+0xd6/0x120 [ 503.012390][ T2856] ? mutex_unlock+0x29/0xf0 [ 503.017092][ T2856] kernfs_new_node+0x97/0x170 [ 503.021773][ T2856] __kernfs_create_file+0x4a/0x270 [ 503.027063][ T2856] cgroup_addrm_files+0xab8/0xfe0 [ 503.032082][ T2856] ? ____kasan_kmalloc+0xdc/0x110 [ 503.037286][ T2856] ? __kasan_kmalloc+0x9/0x10 [ 503.042407][ T2856] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 503.047986][ T2856] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 503.054246][ T2856] ? delete_node+0x759/0x7b0 [ 503.058915][ T2856] ? __kasan_check_read+0x11/0x20 [ 503.064046][ T2856] ? idr_replace+0x1c4/0x230 [ 503.068715][ T2856] ? idr_get_next+0x4b0/0x4b0 [ 503.073416][ T2856] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 503.078766][ T2856] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 503.083957][ T2856] css_populate_dir+0x137/0x370 [ 503.088812][ T2856] cgroup_apply_control_enable+0x8b9/0x12f0 [ 503.095131][ T2856] cgroup_apply_control+0x8e/0x7e0 [ 503.100358][ T2856] ? css_next_child+0x160/0x160 [ 503.105196][ T2856] ? stack_trace_save+0x12d/0x1f0 [ 503.110467][ T2856] ? io_schedule+0x120/0x120 [ 503.115045][ T2856] ? kernfs_fop_write_iter+0x15e/0x410 [ 503.120488][ T2856] ? __kasan_check_write+0x14/0x20 [ 503.125586][ T2856] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 503.131315][ T2856] cgroup_subtree_control_write+0xd19/0x1310 [ 503.137291][ T2856] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 503.143488][ T2856] ? __kasan_check_write+0x14/0x20 [ 503.148601][ T2856] ? _copy_from_iter+0x3fb/0xd60 [ 503.153572][ T2856] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 503.159638][ T2856] cgroup_file_write+0x28e/0x590 [ 503.164862][ T2856] ? cgroup_seqfile_stop+0xc0/0xc0 [ 503.170256][ T2856] ? mutex_trylock+0x180/0x180 [ 503.175031][ T2856] ? __kasan_check_write+0x14/0x20 [ 503.180132][ T2856] kernfs_fop_write_iter+0x2d0/0x410 [ 503.185546][ T2856] ? cgroup_seqfile_stop+0xc0/0xc0 [ 503.190929][ T2856] vfs_write+0xc4a/0xf80 [ 503.195291][ T2856] ? slab_free_freelist_hook+0xcc/0x1a0 [ 503.200927][ T2856] ? kernel_write+0x420/0x420 [ 503.205598][ T2856] ? do_sys_openat2+0x397/0x470 [ 503.210461][ T2856] ? __kasan_check_read+0x11/0x20 [ 503.215487][ T2856] ? __fdget_pos+0x27e/0x310 [ 503.220087][ T2856] ksys_write+0x198/0x2c0 [ 503.224427][ T2856] ? __ia32_sys_read+0x90/0x90 [ 503.229178][ T2856] ? debug_smp_processor_id+0x17/0x20 [ 503.234556][ T2856] __x64_sys_write+0x7b/0x90 [ 503.239175][ T2856] do_syscall_64+0x34/0x70 [ 503.243678][ T2856] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 503.250259][ T2856] RIP: 0033:0x7f48883727a9 [ 503.254692][ T2856] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 503.275800][ T2856] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 503.284372][ T2856] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 503.292524][ T2856] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 503.300574][ T2856] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 503.308539][ T2856] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 503.316518][ T2856] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001e [ 503.324835][ T2856] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 503.357186][ T2853] FAULT_INJECTION: forcing a failure. [ 503.357186][ T2853] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 503.371000][ T2853] CPU: 0 PID: 2853 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 503.381621][ T2853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 503.391688][ T2853] Call Trace: [ 503.395252][ T2853] dump_stack_lvl+0x1e2/0x24b [ 503.400212][ T2853] ? bfq_pos_tree_add_move+0x43e/0x43e [ 503.405730][ T2853] ? stack_trace_save+0x12d/0x1f0 [ 503.410750][ T2853] dump_stack+0x15/0x17 [ 503.414910][ T2853] should_fail+0x3c0/0x510 [ 503.419320][ T2853] should_fail_alloc_page+0x50/0x60 [ 503.424524][ T2853] __alloc_pages_nodemask+0x1c0/0x890 [ 503.429879][ T2853] ? __kasan_check_write+0x14/0x20 [ 503.434983][ T2853] ? delete_node+0x759/0x7b0 [ 503.439559][ T2853] ? mutex_trylock+0x180/0x180 [ 503.444389][ T2853] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 503.449924][ T2853] ? kernfs_xattr_get+0x80/0x90 [ 503.455059][ T2853] ? selinux_kernfs_init_security+0x1a8/0x760 [ 503.461211][ T2853] allocate_slab+0x78/0x540 [ 503.465716][ T2853] ___slab_alloc+0x131/0x2e0 [ 503.470399][ T2853] ? __kernfs_new_node+0xdb/0x6e0 [ 503.475741][ T2853] __slab_alloc+0x63/0xa0 [ 503.480211][ T2853] ? __kernfs_new_node+0xdb/0x6e0 [ 503.485235][ T2853] kmem_cache_alloc+0x1ef/0x300 [ 503.490075][ T2853] ? __kernfs_new_node+0xdb/0x6e0 [ 503.495172][ T2853] __kernfs_new_node+0xdb/0x6e0 [ 503.500276][ T2853] ? is_module_text_address+0xe1/0x140 [ 503.506211][ T2853] ? kernfs_new_node+0x170/0x170 [ 503.511512][ T2853] ? ptr_to_hashval+0x60/0x60 [ 503.516543][ T2853] ? arch_stack_walk+0xf8/0x140 [ 503.521412][ T2853] ? snprintf+0xd6/0x120 [ 503.525720][ T2853] kernfs_new_node+0x97/0x170 [ 503.530491][ T2853] __kernfs_create_file+0x4a/0x270 [ 503.535595][ T2853] cgroup_addrm_files+0xab8/0xfe0 [ 503.540633][ T2853] ? ____kasan_kmalloc+0xdc/0x110 [ 503.545663][ T2853] ? __kasan_kmalloc+0x9/0x10 [ 503.550633][ T2853] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 503.556412][ T2853] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 503.562598][ T2853] ? delete_node+0x759/0x7b0 [ 503.567188][ T2853] ? __kasan_check_read+0x11/0x20 [ 503.572203][ T2853] ? delete_node+0x759/0x7b0 [ 503.576777][ T2853] ? __kasan_check_write+0x14/0x20 [ 503.581960][ T2853] ? idr_replace+0x1c4/0x230 [ 503.586532][ T2853] ? idr_get_next+0x4b0/0x4b0 [ 503.591361][ T2853] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 503.596368][ T2853] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 503.601831][ T2853] css_populate_dir+0x137/0x370 [ 503.606696][ T2853] cgroup_apply_control_enable+0x8b9/0x12f0 [ 503.612602][ T2853] cgroup_apply_control+0x8e/0x7e0 [ 503.617856][ T2853] ? css_next_child+0x160/0x160 [ 503.622707][ T2853] ? stack_trace_save+0x12d/0x1f0 [ 503.627731][ T2853] ? io_schedule+0x120/0x120 [ 503.632337][ T2853] ? kernfs_fop_write_iter+0x15e/0x410 [ 503.638018][ T2853] ? __kasan_check_write+0x14/0x20 [ 503.643128][ T2853] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 503.648490][ T2853] cgroup_subtree_control_write+0xd19/0x1310 [ 503.654467][ T2853] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 503.660441][ T2853] ? __kasan_check_write+0x14/0x20 [ 503.665548][ T2853] ? _copy_from_iter+0x3fb/0xd60 [ 503.670478][ T2853] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 503.676444][ T2853] cgroup_file_write+0x28e/0x590 [ 503.681367][ T2853] ? cgroup_seqfile_stop+0xc0/0xc0 [ 503.686461][ T2853] ? mutex_trylock+0x180/0x180 [ 503.691209][ T2853] ? __kasan_check_write+0x14/0x20 [ 503.696302][ T2853] kernfs_fop_write_iter+0x2d0/0x410 [ 503.701573][ T2853] ? cgroup_seqfile_stop+0xc0/0xc0 [ 503.706700][ T2853] vfs_write+0xc4a/0xf80 [ 503.711017][ T2853] ? slab_free_freelist_hook+0xcc/0x1a0 [ 503.716559][ T2853] ? kernel_write+0x420/0x420 [ 503.721217][ T2853] ? do_sys_openat2+0x397/0x470 [ 503.726138][ T2853] ? __kasan_check_read+0x11/0x20 [ 503.731376][ T2853] ? __fdget_pos+0x27e/0x310 [ 503.736401][ T2853] ksys_write+0x198/0x2c0 [ 503.740724][ T2853] ? __ia32_sys_read+0x90/0x90 [ 503.745479][ T2853] ? debug_smp_processor_id+0x17/0x20 [ 503.751119][ T2853] __x64_sys_write+0x7b/0x90 [ 503.755892][ T2853] do_syscall_64+0x34/0x70 [ 503.760303][ T2853] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 503.766179][ T2853] RIP: 0033:0x7f48883727a9 [ 503.770579][ T2853] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 503.790496][ T2853] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 503.798962][ T2853] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 503.806940][ T2853] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 503.814910][ T2853] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 503.822881][ T2853] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 503.830854][ T2853] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000020 [ 503.887357][ T2861] FAULT_INJECTION: forcing a failure. [ 503.887357][ T2861] name failslab, interval 1, probability 0, space 0, times 0 [ 503.900435][ T2861] CPU: 1 PID: 2861 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 503.911518][ T2861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 503.921670][ T2861] Call Trace: [ 503.924997][ T2861] dump_stack_lvl+0x1e2/0x24b [ 503.929887][ T2861] ? panic+0x7d7/0x7d7 [ 503.934138][ T2861] ? bfq_pos_tree_add_move+0x43e/0x43e [ 503.939685][ T2861] ? selinux_kernfs_init_security+0x1a8/0x760 [ 503.945927][ T2861] dump_stack+0x15/0x17 [ 503.950247][ T2861] should_fail+0x3c0/0x510 [ 503.954735][ T2861] __should_failslab+0x9f/0xe0 [ 503.959486][ T2861] should_failslab+0x9/0x20 [ 503.964270][ T2861] kmem_cache_alloc+0x3f/0x300 [ 503.969041][ T2861] ? __kernfs_new_node+0xdb/0x6e0 [ 503.974053][ T2861] __kernfs_new_node+0xdb/0x6e0 [ 503.979069][ T2861] ? is_module_text_address+0xe1/0x140 [ 503.984652][ T2861] ? kernfs_new_node+0x170/0x170 [ 503.989597][ T2861] ? ptr_to_hashval+0x60/0x60 [ 503.994271][ T2861] ? arch_stack_walk+0xf8/0x140 [ 503.999228][ T2861] ? snprintf+0xd6/0x120 [ 504.003469][ T2861] kernfs_new_node+0x97/0x170 [ 504.008147][ T2861] __kernfs_create_file+0x4a/0x270 [ 504.013320][ T2861] cgroup_addrm_files+0xab8/0xfe0 [ 504.018534][ T2861] ? ____kasan_kmalloc+0xdc/0x110 [ 504.023557][ T2861] ? __kasan_kmalloc+0x9/0x10 [ 504.028366][ T2861] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 504.033958][ T2861] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 504.040353][ T2861] ? delete_node+0x759/0x7b0 [ 504.045062][ T2861] ? __kasan_check_read+0x11/0x20 [ 504.050207][ T2861] ? delete_node+0x759/0x7b0 [ 504.054787][ T2861] ? __kasan_check_write+0x14/0x20 [ 504.059900][ T2861] ? idr_replace+0x1c4/0x230 [ 504.064624][ T2861] ? idr_get_next+0x4b0/0x4b0 [ 504.069305][ T2861] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 504.074316][ T2861] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 504.079514][ T2861] css_populate_dir+0x137/0x370 [ 504.084449][ T2861] cgroup_apply_control_enable+0x8b9/0x12f0 [ 504.090370][ T2861] cgroup_apply_control+0x8e/0x7e0 [ 504.095571][ T2861] ? css_next_child+0x160/0x160 [ 504.100608][ T2861] ? stack_trace_save+0x12d/0x1f0 [ 504.105877][ T2861] ? io_schedule+0x120/0x120 [ 504.110478][ T2861] ? kernfs_fop_write_iter+0x15e/0x410 [ 504.116065][ T2861] ? __kasan_check_write+0x14/0x20 [ 504.121680][ T2861] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 504.127398][ T2861] cgroup_subtree_control_write+0xd19/0x1310 [ 504.134435][ T2861] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 504.140541][ T2861] ? __kasan_check_write+0x14/0x20 [ 504.146792][ T2861] ? _copy_from_iter+0x3fb/0xd60 [ 504.152734][ T2861] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 504.158826][ T2861] cgroup_file_write+0x28e/0x590 [ 504.164292][ T2861] ? cgroup_seqfile_stop+0xc0/0xc0 [ 504.169748][ T2861] ? mutex_trylock+0x180/0x180 [ 504.175099][ T2861] ? __kasan_check_write+0x14/0x20 [ 504.180382][ T2861] kernfs_fop_write_iter+0x2d0/0x410 [ 504.185840][ T2861] ? cgroup_seqfile_stop+0xc0/0xc0 [ 504.190963][ T2861] vfs_write+0xc4a/0xf80 [ 504.195198][ T2861] ? slab_free_freelist_hook+0xcc/0x1a0 [ 504.200747][ T2861] ? kernel_write+0x420/0x420 [ 504.205524][ T2861] ? do_sys_openat2+0x397/0x470 [ 504.210460][ T2861] ? __kasan_check_read+0x11/0x20 [ 504.215576][ T2861] ? __fdget_pos+0x27e/0x310 [ 504.220245][ T2861] ksys_write+0x198/0x2c0 [ 504.224852][ T2861] ? __ia32_sys_read+0x90/0x90 [ 504.229623][ T2861] ? debug_smp_processor_id+0x17/0x20 [ 504.235203][ T2861] __x64_sys_write+0x7b/0x90 [ 504.239785][ T2861] do_syscall_64+0x34/0x70 [ 504.244205][ T2861] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 504.250190][ T2861] RIP: 0033:0x7f48883727a9 [ 504.254598][ T2861] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 504.274474][ T2861] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 504.282999][ T2861] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 504.291073][ T2861] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 504.299044][ T2861] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 504.307533][ T2861] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 504.315856][ T2861] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000025 [ 504.324036][ T2861] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 504.367244][ T2868] FAULT_INJECTION: forcing a failure. [ 504.367244][ T2868] name failslab, interval 1, probability 0, space 0, times 0 [ 504.380433][ T2868] CPU: 1 PID: 2868 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 504.391027][ T2868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 504.401089][ T2868] Call Trace: [ 504.404471][ T2868] dump_stack_lvl+0x1e2/0x24b [ 504.409224][ T2868] ? panic+0x7d7/0x7d7 [ 504.413329][ T2868] ? bfq_pos_tree_add_move+0x43e/0x43e [ 504.420592][ T2868] ? selinux_kernfs_init_security+0x1a8/0x760 [ 504.426808][ T2868] dump_stack+0x15/0x17 [ 504.430943][ T2868] should_fail+0x3c0/0x510 [ 504.435352][ T2868] __should_failslab+0x9f/0xe0 [ 504.440183][ T2868] should_failslab+0x9/0x20 [ 504.444708][ T2868] kmem_cache_alloc+0x3f/0x300 [ 504.449700][ T2868] ? __kernfs_new_node+0xdb/0x6e0 [ 504.454722][ T2868] __kernfs_new_node+0xdb/0x6e0 [ 504.459553][ T2868] ? is_module_text_address+0xe1/0x140 [ 504.465027][ T2868] ? kernfs_new_node+0x170/0x170 [ 504.470505][ T2868] ? ptr_to_hashval+0x60/0x60 [ 504.475388][ T2868] ? arch_stack_walk+0xf8/0x140 [ 504.480353][ T2868] ? snprintf+0xd6/0x120 [ 504.484781][ T2868] kernfs_new_node+0x97/0x170 [ 504.489567][ T2868] __kernfs_create_file+0x4a/0x270 [ 504.494672][ T2868] cgroup_addrm_files+0xab8/0xfe0 [ 504.500498][ T2868] ? ____kasan_kmalloc+0xdc/0x110 [ 504.505787][ T2868] ? __kasan_kmalloc+0x9/0x10 [ 504.510809][ T2868] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 504.516871][ T2868] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 504.523353][ T2868] ? delete_node+0x759/0x7b0 [ 504.527925][ T2868] ? __kasan_check_read+0x11/0x20 [ 504.532951][ T2868] ? delete_node+0x759/0x7b0 [ 504.537877][ T2868] ? __kasan_check_write+0x14/0x20 [ 504.543120][ T2868] ? idr_replace+0x1c4/0x230 [ 504.547710][ T2868] ? idr_get_next+0x4b0/0x4b0 [ 504.552458][ T2868] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 504.557557][ T2868] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 504.562821][ T2868] css_populate_dir+0x137/0x370 [ 504.567757][ T2868] cgroup_apply_control_enable+0x8b9/0x12f0 [ 504.573632][ T2868] cgroup_apply_control+0x8e/0x7e0 [ 504.578746][ T2868] ? css_next_child+0x160/0x160 [ 504.583756][ T2868] ? stack_trace_save+0x12d/0x1f0 [ 504.588845][ T2868] ? io_schedule+0x120/0x120 [ 504.593501][ T2868] ? kernfs_fop_write_iter+0x15e/0x410 [ 504.599028][ T2868] ? __kasan_check_write+0x14/0x20 [ 504.604216][ T2868] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 504.609502][ T2868] cgroup_subtree_control_write+0xd19/0x1310 [ 504.615774][ T2868] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 504.621960][ T2868] ? __kasan_check_write+0x14/0x20 [ 504.627246][ T2868] ? _copy_from_iter+0x3fb/0xd60 [ 504.632175][ T2868] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 504.638157][ T2868] cgroup_file_write+0x28e/0x590 [ 504.643196][ T2868] ? cgroup_seqfile_stop+0xc0/0xc0 [ 504.648394][ T2868] ? mutex_trylock+0x180/0x180 [ 504.653280][ T2868] ? __kasan_check_write+0x14/0x20 [ 504.658651][ T2868] kernfs_fop_write_iter+0x2d0/0x410 [ 504.663925][ T2868] ? cgroup_seqfile_stop+0xc0/0xc0 [ 504.669196][ T2868] vfs_write+0xc4a/0xf80 [ 504.673515][ T2868] ? slab_free_freelist_hook+0xcc/0x1a0 [ 504.679129][ T2868] ? kernel_write+0x420/0x420 [ 504.684683][ T2868] ? do_sys_openat2+0x397/0x470 [ 504.689513][ T2868] ? __kasan_check_read+0x11/0x20 [ 504.694808][ T2868] ? __fdget_pos+0x27e/0x310 [ 504.699764][ T2868] ksys_write+0x198/0x2c0 [ 504.704095][ T2868] ? __ia32_sys_read+0x90/0x90 [ 504.708969][ T2868] ? debug_smp_processor_id+0x17/0x20 [ 504.714344][ T2868] __x64_sys_write+0x7b/0x90 [ 504.719005][ T2868] do_syscall_64+0x34/0x70 [ 504.723662][ T2868] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 504.729751][ T2868] RIP: 0033:0x7f48883727a9 [ 504.734151][ T2868] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 504.754012][ T2868] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 504.762469][ T2868] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 504.770440][ T2868] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 504.778476][ T2868] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 504.786428][ T2868] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 504.794812][ T2868] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000026 [ 504.803062][ T2868] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 504.847294][ T2863] FAULT_INJECTION: forcing a failure. [ 504.847294][ T2863] name failslab, interval 1, probability 0, space 0, times 0 [ 504.860170][ T2863] CPU: 0 PID: 2863 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 504.870646][ T2863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 504.880769][ T2863] Call Trace: [ 504.884053][ T2863] dump_stack_lvl+0x1e2/0x24b [ 504.889063][ T2863] ? bfq_pos_tree_add_move+0x43e/0x43e [ 504.894510][ T2863] ? selinux_kernfs_init_security+0x1a8/0x760 [ 504.900578][ T2863] dump_stack+0x15/0x17 [ 504.904732][ T2863] should_fail+0x3c0/0x510 [ 504.909127][ T2863] ? __kernfs_new_node+0x99/0x6e0 [ 504.914146][ T2863] __should_failslab+0x9f/0xe0 [ 504.918898][ T2863] should_failslab+0x9/0x20 [ 504.923379][ T2863] __kmalloc_track_caller+0x5f/0x350 [ 504.928656][ T2863] kstrdup_const+0x55/0x90 [ 504.933073][ T2863] __kernfs_new_node+0x99/0x6e0 [ 504.938837][ T2863] ? is_module_text_address+0xe1/0x140 [ 504.944399][ T2863] ? kernfs_new_node+0x170/0x170 [ 504.949424][ T2863] ? ptr_to_hashval+0x60/0x60 [ 504.954086][ T2863] ? mutex_lock+0xb2/0x1e0 [ 504.958519][ T2863] ? snprintf+0xd6/0x120 [ 504.962739][ T2863] ? mutex_unlock+0x29/0xf0 [ 504.967223][ T2863] kernfs_new_node+0x97/0x170 [ 504.971880][ T2863] __kernfs_create_file+0x4a/0x270 [ 504.976981][ T2863] cgroup_addrm_files+0xab8/0xfe0 [ 504.982082][ T2863] ? ____kasan_kmalloc+0xdc/0x110 [ 504.989003][ T2863] ? __kasan_kmalloc+0x9/0x10 [ 504.993804][ T2863] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 504.999354][ T2863] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 505.005527][ T2863] ? delete_node+0x759/0x7b0 [ 505.010131][ T2863] ? __kasan_check_read+0x11/0x20 [ 505.015256][ T2863] ? idr_replace+0x1c4/0x230 [ 505.019851][ T2863] ? idr_get_next+0x4b0/0x4b0 [ 505.024511][ T2863] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 505.029519][ T2863] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 505.034792][ T2863] css_populate_dir+0x137/0x370 [ 505.039644][ T2863] cgroup_apply_control_enable+0x8b9/0x12f0 [ 505.045543][ T2863] cgroup_apply_control+0x8e/0x7e0 [ 505.050669][ T2863] ? css_next_child+0x160/0x160 [ 505.055510][ T2863] ? stack_trace_save+0x12d/0x1f0 [ 505.060525][ T2863] ? io_schedule+0x120/0x120 [ 505.065105][ T2863] ? kernfs_fop_write_iter+0x15e/0x410 [ 505.070562][ T2863] ? __kasan_check_write+0x14/0x20 [ 505.075659][ T2863] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 505.081030][ T2863] cgroup_subtree_control_write+0xd19/0x1310 [ 505.087845][ T2863] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 505.093936][ T2863] ? __kasan_check_write+0x14/0x20 [ 505.099248][ T2863] ? _copy_from_iter+0x3fb/0xd60 [ 505.104171][ T2863] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 505.110347][ T2863] cgroup_file_write+0x28e/0x590 [ 505.115278][ T2863] ? cgroup_seqfile_stop+0xc0/0xc0 [ 505.120396][ T2863] ? mutex_trylock+0x180/0x180 [ 505.125270][ T2863] ? __kasan_check_write+0x14/0x20 [ 505.131100][ T2863] kernfs_fop_write_iter+0x2d0/0x410 [ 505.136378][ T2863] ? cgroup_seqfile_stop+0xc0/0xc0 [ 505.141507][ T2863] vfs_write+0xc4a/0xf80 [ 505.146114][ T2863] ? slab_free_freelist_hook+0xcc/0x1a0 [ 505.152022][ T2863] ? kernel_write+0x420/0x420 [ 505.156956][ T2863] ? do_sys_openat2+0x397/0x470 [ 505.161899][ T2863] ? __kasan_check_read+0x11/0x20 [ 505.167026][ T2863] ? __fdget_pos+0x27e/0x310 [ 505.171614][ T2863] ksys_write+0x198/0x2c0 [ 505.175928][ T2863] ? __ia32_sys_read+0x90/0x90 [ 505.180781][ T2863] ? debug_smp_processor_id+0x17/0x20 [ 505.186833][ T2863] __x64_sys_write+0x7b/0x90 [ 505.191595][ T2863] do_syscall_64+0x34/0x70 [ 505.196150][ T2863] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 505.202319][ T2863] RIP: 0033:0x7f48883727a9 [ 505.206730][ T2863] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 505.226587][ T2863] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 505.235246][ T2863] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 505.243209][ T2863] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 505.251252][ T2863] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 505.261140][ T2863] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 505.270910][ T2863] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000024 [ 505.279378][ T2863] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 505.367325][ T2862] FAULT_INJECTION: forcing a failure. [ 505.367325][ T2862] name failslab, interval 1, probability 0, space 0, times 0 [ 505.381320][ T2862] CPU: 0 PID: 2862 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 505.392440][ T2862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 505.403032][ T2862] Call Trace: [ 505.406505][ T2862] dump_stack_lvl+0x1e2/0x24b [ 505.411211][ T2862] ? bfq_pos_tree_add_move+0x43e/0x43e [ 505.416832][ T2862] ? selinux_kernfs_init_security+0x1a8/0x760 [ 505.422898][ T2862] dump_stack+0x15/0x17 [ 505.427060][ T2862] should_fail+0x3c0/0x510 [ 505.431550][ T2862] ? __kernfs_new_node+0x99/0x6e0 [ 505.437367][ T2862] __should_failslab+0x9f/0xe0 [ 505.442352][ T2862] should_failslab+0x9/0x20 [ 505.446966][ T2862] __kmalloc_track_caller+0x5f/0x350 [ 505.452250][ T2862] kstrdup_const+0x55/0x90 [ 505.457263][ T2862] __kernfs_new_node+0x99/0x6e0 [ 505.462105][ T2862] ? is_module_text_address+0xe1/0x140 [ 505.467687][ T2862] ? kernfs_new_node+0x170/0x170 [ 505.472634][ T2862] ? ptr_to_hashval+0x60/0x60 [ 505.477346][ T2862] ? mutex_lock+0xb2/0x1e0 [ 505.481952][ T2862] ? snprintf+0xd6/0x120 [ 505.486318][ T2862] ? mutex_unlock+0x29/0xf0 [ 505.490883][ T2862] kernfs_new_node+0x97/0x170 [ 505.495763][ T2862] __kernfs_create_file+0x4a/0x270 [ 505.500878][ T2862] cgroup_addrm_files+0xab8/0xfe0 [ 505.505982][ T2862] ? ____kasan_kmalloc+0xdc/0x110 [ 505.511268][ T2862] ? __kasan_kmalloc+0x9/0x10 [ 505.516047][ T2862] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 505.521691][ T2862] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 505.528956][ T2862] ? delete_node+0x759/0x7b0 [ 505.533584][ T2862] ? __kasan_check_read+0x11/0x20 [ 505.538742][ T2862] ? idr_replace+0x1c4/0x230 [ 505.543429][ T2862] ? idr_get_next+0x4b0/0x4b0 [ 505.548104][ T2862] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 505.553316][ T2862] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 505.558866][ T2862] css_populate_dir+0x137/0x370 [ 505.563847][ T2862] cgroup_apply_control_enable+0x8b9/0x12f0 [ 505.569881][ T2862] cgroup_apply_control+0x8e/0x7e0 [ 505.575156][ T2862] ? css_next_child+0x160/0x160 [ 505.580368][ T2862] ? io_schedule+0x120/0x120 [ 505.584953][ T2862] ? kernfs_fop_write_iter+0x15e/0x410 [ 505.590504][ T2862] ? __kasan_check_write+0x14/0x20 [ 505.595685][ T2862] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 505.601334][ T2862] cgroup_subtree_control_write+0xd19/0x1310 [ 505.607327][ T2862] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 505.613557][ T2862] ? __kasan_check_write+0x14/0x20 [ 505.618904][ T2862] ? _copy_from_iter+0x3fb/0xd60 [ 505.623841][ T2862] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 505.630425][ T2862] cgroup_file_write+0x28e/0x590 [ 505.635632][ T2862] ? cgroup_seqfile_stop+0xc0/0xc0 [ 505.640851][ T2862] ? mutex_trylock+0x180/0x180 [ 505.646097][ T2862] ? __kasan_check_write+0x14/0x20 [ 505.651740][ T2862] kernfs_fop_write_iter+0x2d0/0x410 [ 505.658324][ T2862] ? cgroup_seqfile_stop+0xc0/0xc0 [ 505.663529][ T2862] vfs_write+0xc4a/0xf80 [ 505.667809][ T2862] ? kernel_write+0x420/0x420 [ 505.672507][ T2862] ? do_sys_openat2+0x397/0x470 [ 505.677369][ T2862] ? __kasan_check_read+0x11/0x20 [ 505.682484][ T2862] ? __fdget_pos+0x27e/0x310 [ 505.687162][ T2862] ksys_write+0x198/0x2c0 [ 505.691909][ T2862] ? __ia32_sys_read+0x90/0x90 [ 505.697087][ T2862] ? debug_smp_processor_id+0x17/0x20 [ 505.702582][ T2862] __x64_sys_write+0x7b/0x90 [ 505.707276][ T2862] do_syscall_64+0x34/0x70 [ 505.711699][ T2862] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 505.717678][ T2862] RIP: 0033:0x7f48883727a9 [ 505.722098][ T2862] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 505.741919][ T2862] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 505.750323][ T2862] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 505.758385][ T2862] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 505.766608][ T2862] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 505.774596][ T2862] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 505.782694][ T2862] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000031 [ 505.790970][ T2862] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 505.827102][ T2867] FAULT_INJECTION: forcing a failure. [ 505.827102][ T2867] name failslab, interval 1, probability 0, space 0, times 0 [ 505.840514][ T2867] CPU: 1 PID: 2867 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 505.851026][ T2867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 505.861298][ T2867] Call Trace: [ 505.864620][ T2867] dump_stack_lvl+0x1e2/0x24b [ 505.869291][ T2867] ? panic+0x7d7/0x7d7 [ 505.873354][ T2867] ? bfq_pos_tree_add_move+0x43e/0x43e [ 505.878885][ T2867] ? selinux_kernfs_init_security+0x1a8/0x760 [ 505.884939][ T2867] dump_stack+0x15/0x17 [ 505.889088][ T2867] should_fail+0x3c0/0x510 [ 505.893619][ T2867] __should_failslab+0x9f/0xe0 [ 505.898627][ T2867] should_failslab+0x9/0x20 [ 505.903127][ T2867] kmem_cache_alloc+0x3f/0x300 [ 505.907883][ T2867] ? __kernfs_new_node+0xdb/0x6e0 [ 505.912923][ T2867] __kernfs_new_node+0xdb/0x6e0 [ 505.917960][ T2867] ? is_module_text_address+0xe1/0x140 [ 505.923401][ T2867] ? kernfs_new_node+0x170/0x170 [ 505.928396][ T2867] ? ptr_to_hashval+0x60/0x60 [ 505.933245][ T2867] ? arch_stack_walk+0xf8/0x140 [ 505.938510][ T2867] ? snprintf+0xd6/0x120 [ 505.942858][ T2867] kernfs_new_node+0x97/0x170 [ 505.947534][ T2867] __kernfs_create_file+0x4a/0x270 [ 505.952732][ T2867] cgroup_addrm_files+0xab8/0xfe0 [ 505.957840][ T2867] ? ____kasan_kmalloc+0xdc/0x110 [ 505.962857][ T2867] ? __kasan_kmalloc+0x9/0x10 [ 505.967568][ T2867] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 505.973234][ T2867] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 505.979462][ T2867] ? delete_node+0x759/0x7b0 [ 505.984229][ T2867] ? __kasan_check_read+0x11/0x20 [ 505.989513][ T2867] ? delete_node+0x759/0x7b0 [ 505.994105][ T2867] ? __kasan_check_write+0x14/0x20 [ 505.999252][ T2867] ? idr_replace+0x1c4/0x230 [ 506.003915][ T2867] ? idr_get_next+0x4b0/0x4b0 [ 506.008744][ T2867] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 506.013916][ T2867] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 506.019353][ T2867] css_populate_dir+0x137/0x370 [ 506.024183][ T2867] cgroup_apply_control_enable+0x8b9/0x12f0 [ 506.030935][ T2867] cgroup_apply_control+0x8e/0x7e0 [ 506.036543][ T2867] ? css_next_child+0x160/0x160 [ 506.041377][ T2867] ? stack_trace_save+0x12d/0x1f0 [ 506.046465][ T2867] ? io_schedule+0x120/0x120 [ 506.051155][ T2867] ? kernfs_fop_write_iter+0x15e/0x410 [ 506.057116][ T2867] ? __kasan_check_write+0x14/0x20 [ 506.062406][ T2867] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 506.067960][ T2867] cgroup_subtree_control_write+0xd19/0x1310 [ 506.073957][ T2867] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 506.079923][ T2867] ? __kasan_check_write+0x14/0x20 [ 506.085469][ T2867] ? _copy_from_iter+0x3fb/0xd60 [ 506.090643][ T2867] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 506.104587][ T2867] cgroup_file_write+0x28e/0x590 [ 506.111794][ T2867] ? cgroup_seqfile_stop+0xc0/0xc0 [ 506.116905][ T2867] ? mutex_trylock+0x180/0x180 [ 506.121731][ T2867] ? __kasan_check_write+0x14/0x20 [ 506.127007][ T2867] kernfs_fop_write_iter+0x2d0/0x410 [ 506.132292][ T2867] ? cgroup_seqfile_stop+0xc0/0xc0 [ 506.137381][ T2867] vfs_write+0xc4a/0xf80 [ 506.141629][ T2867] ? slab_free_freelist_hook+0xcc/0x1a0 [ 506.147152][ T2867] ? kernel_write+0x420/0x420 [ 506.151812][ T2867] ? do_sys_openat2+0x397/0x470 [ 506.156837][ T2867] ? __kasan_check_read+0x11/0x20 [ 506.161841][ T2867] ? __fdget_pos+0x27e/0x310 [ 506.166594][ T2867] ksys_write+0x198/0x2c0 [ 506.171018][ T2867] ? __ia32_sys_read+0x90/0x90 [ 506.176306][ T2867] ? debug_smp_processor_id+0x17/0x20 [ 506.181754][ T2867] __x64_sys_write+0x7b/0x90 [ 506.186411][ T2867] do_syscall_64+0x34/0x70 [ 506.190915][ T2867] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 506.196797][ T2867] RIP: 0033:0x7f48883727a9 [ 506.201899][ T2867] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 506.221505][ T2867] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 506.229930][ T2867] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 506.238293][ T2867] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 506.246263][ T2867] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 506.254312][ T2867] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 506.262807][ T2867] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000028 [ 506.271500][ T2867] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 506.307158][ T2869] FAULT_INJECTION: forcing a failure. [ 506.307158][ T2869] name failslab, interval 1, probability 0, space 0, times 0 [ 506.319930][ T2869] CPU: 0 PID: 2869 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 506.330701][ T2869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 506.340922][ T2869] Call Trace: [ 506.344223][ T2869] dump_stack_lvl+0x1e2/0x24b [ 506.348884][ T2869] ? panic+0x7d7/0x7d7 [ 506.352959][ T2869] ? bfq_pos_tree_add_move+0x43e/0x43e [ 506.358395][ T2869] ? selinux_kernfs_init_security+0x1a8/0x760 [ 506.364463][ T2869] dump_stack+0x15/0x17 [ 506.368603][ T2869] should_fail+0x3c0/0x510 [ 506.373183][ T2869] __should_failslab+0x9f/0xe0 [ 506.377931][ T2869] should_failslab+0x9/0x20 [ 506.382456][ T2869] kmem_cache_alloc+0x3f/0x300 [ 506.388598][ T2869] ? __kernfs_new_node+0xdb/0x6e0 [ 506.393756][ T2869] __kernfs_new_node+0xdb/0x6e0 [ 506.398596][ T2869] ? is_module_text_address+0xe1/0x140 [ 506.404047][ T2869] ? kernfs_new_node+0x170/0x170 [ 506.409078][ T2869] ? ptr_to_hashval+0x60/0x60 [ 506.414065][ T2869] ? arch_stack_walk+0xf8/0x140 [ 506.419185][ T2869] ? snprintf+0xd6/0x120 [ 506.423433][ T2869] kernfs_new_node+0x97/0x170 [ 506.428111][ T2869] __kernfs_create_file+0x4a/0x270 [ 506.433214][ T2869] cgroup_addrm_files+0xab8/0xfe0 [ 506.438220][ T2869] ? ____kasan_kmalloc+0xdc/0x110 [ 506.443237][ T2869] ? __kasan_kmalloc+0x9/0x10 [ 506.448072][ T2869] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 506.453643][ T2869] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 506.459796][ T2869] ? delete_node+0x759/0x7b0 [ 506.464378][ T2869] ? __kasan_check_read+0x11/0x20 [ 506.469390][ T2869] ? delete_node+0x759/0x7b0 [ 506.473963][ T2869] ? __kasan_check_write+0x14/0x20 [ 506.479247][ T2869] ? idr_replace+0x1c4/0x230 [ 506.483844][ T2869] ? idr_get_next+0x4b0/0x4b0 [ 506.488686][ T2869] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 506.493800][ T2869] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 506.500593][ T2869] css_populate_dir+0x137/0x370 [ 506.505675][ T2869] cgroup_apply_control_enable+0x8b9/0x12f0 [ 506.511838][ T2869] cgroup_apply_control+0x8e/0x7e0 [ 506.517251][ T2869] ? css_next_child+0x160/0x160 [ 506.522193][ T2869] ? stack_trace_save+0x12d/0x1f0 [ 506.527318][ T2869] ? io_schedule+0x120/0x120 [ 506.532613][ T2869] ? kernfs_fop_write_iter+0x15e/0x410 [ 506.538072][ T2869] ? __kasan_check_write+0x14/0x20 [ 506.543172][ T2869] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 506.548625][ T2869] cgroup_subtree_control_write+0xd19/0x1310 [ 506.554694][ T2869] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 506.561026][ T2869] ? __kasan_check_write+0x14/0x20 [ 506.566270][ T2869] ? _copy_from_iter+0x3fb/0xd60 [ 506.572761][ T2869] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 506.578832][ T2869] cgroup_file_write+0x28e/0x590 [ 506.583870][ T2869] ? cgroup_seqfile_stop+0xc0/0xc0 [ 506.589093][ T2869] ? mutex_trylock+0x180/0x180 [ 506.594386][ T2869] ? __kasan_check_write+0x14/0x20 [ 506.599529][ T2869] kernfs_fop_write_iter+0x2d0/0x410 [ 506.605009][ T2869] ? cgroup_seqfile_stop+0xc0/0xc0 [ 506.610225][ T2869] vfs_write+0xc4a/0xf80 [ 506.614718][ T2869] ? slab_free_freelist_hook+0xcc/0x1a0 [ 506.620393][ T2869] ? kernel_write+0x420/0x420 [ 506.625098][ T2869] ? do_sys_openat2+0x397/0x470 [ 506.630062][ T2869] ? __kasan_check_read+0x11/0x20 [ 506.635222][ T2869] ? __fdget_pos+0x27e/0x310 [ 506.639888][ T2869] ksys_write+0x198/0x2c0 [ 506.644224][ T2869] ? __ia32_sys_read+0x90/0x90 [ 506.649001][ T2869] ? debug_smp_processor_id+0x17/0x20 [ 506.654370][ T2869] __x64_sys_write+0x7b/0x90 [ 506.659056][ T2869] do_syscall_64+0x34/0x70 [ 506.663462][ T2869] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 506.669433][ T2869] RIP: 0033:0x7f48883727a9 [ 506.674042][ T2869] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 506.693745][ T2869] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 506.702174][ T2869] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 506.710136][ T2869] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 506.718123][ T2869] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 506.726091][ T2869] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 506.734173][ T2869] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000027 [ 506.742235][ T2869] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 506.777018][ T2865] FAULT_INJECTION: forcing a failure. [ 506.777018][ T2865] name failslab, interval 1, probability 0, space 0, times 0 [ 506.789829][ T2865] CPU: 0 PID: 2865 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 506.800446][ T2865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 506.810932][ T2865] Call Trace: [ 506.814224][ T2865] dump_stack_lvl+0x1e2/0x24b [ 506.818987][ T2865] ? panic+0x7d7/0x7d7 [ 506.823065][ T2865] ? bfq_pos_tree_add_move+0x43e/0x43e [ 506.828519][ T2865] ? selinux_kernfs_init_security+0x1a8/0x760 [ 506.834929][ T2865] dump_stack+0x15/0x17 [ 506.839078][ T2865] should_fail+0x3c0/0x510 [ 506.843506][ T2865] __should_failslab+0x9f/0xe0 [ 506.848276][ T2865] should_failslab+0x9/0x20 [ 506.852861][ T2865] kmem_cache_alloc+0x3f/0x300 [ 506.857622][ T2865] ? __kernfs_new_node+0xdb/0x6e0 [ 506.862659][ T2865] __kernfs_new_node+0xdb/0x6e0 [ 506.867525][ T2865] ? is_module_text_address+0xe1/0x140 [ 506.874015][ T2865] ? kernfs_new_node+0x170/0x170 [ 506.879074][ T2865] ? ptr_to_hashval+0x60/0x60 [ 506.884086][ T2865] ? arch_stack_walk+0xf8/0x140 [ 506.888934][ T2865] ? snprintf+0xd6/0x120 [ 506.893958][ T2865] kernfs_new_node+0x97/0x170 [ 506.898638][ T2865] __kernfs_create_file+0x4a/0x270 [ 506.903757][ T2865] cgroup_addrm_files+0xab8/0xfe0 [ 506.908977][ T2865] ? ____kasan_kmalloc+0xdc/0x110 [ 506.914024][ T2865] ? __kasan_kmalloc+0x9/0x10 [ 506.918708][ T2865] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 506.924356][ T2865] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 506.930604][ T2865] ? delete_node+0x759/0x7b0 [ 506.935199][ T2865] ? __kasan_check_read+0x11/0x20 [ 506.940209][ T2865] ? delete_node+0x759/0x7b0 [ 506.944817][ T2865] ? __kasan_check_write+0x14/0x20 [ 506.949940][ T2865] ? idr_replace+0x1c4/0x230 [ 506.954619][ T2865] ? idr_get_next+0x4b0/0x4b0 [ 506.959303][ T2865] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 506.964398][ T2865] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 506.969635][ T2865] css_populate_dir+0x137/0x370 [ 506.974496][ T2865] cgroup_apply_control_enable+0x8b9/0x12f0 [ 506.981591][ T2865] cgroup_apply_control+0x8e/0x7e0 [ 506.986760][ T2865] ? css_next_child+0x160/0x160 [ 506.991800][ T2865] ? stack_trace_save+0x12d/0x1f0 [ 506.996864][ T2865] ? io_schedule+0x120/0x120 [ 507.001460][ T2865] ? kernfs_fop_write_iter+0x15e/0x410 [ 507.006914][ T2865] ? __kasan_check_write+0x14/0x20 [ 507.012015][ T2865] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 507.017358][ T2865] cgroup_subtree_control_write+0xd19/0x1310 [ 507.023328][ T2865] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 507.029295][ T2865] ? __kasan_check_write+0x14/0x20 [ 507.034400][ T2865] ? _copy_from_iter+0x3fb/0xd60 [ 507.039344][ T2865] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 507.045358][ T2865] cgroup_file_write+0x28e/0x590 [ 507.050341][ T2865] ? cgroup_seqfile_stop+0xc0/0xc0 [ 507.055457][ T2865] ? mutex_trylock+0x180/0x180 [ 507.060215][ T2865] ? __kasan_check_write+0x14/0x20 [ 507.065333][ T2865] kernfs_fop_write_iter+0x2d0/0x410 [ 507.070835][ T2865] ? cgroup_seqfile_stop+0xc0/0xc0 [ 507.076056][ T2865] vfs_write+0xc4a/0xf80 [ 507.080309][ T2865] ? slab_free_freelist_hook+0xcc/0x1a0 [ 507.085919][ T2865] ? kernel_write+0x420/0x420 [ 507.090771][ T2865] ? do_sys_openat2+0x397/0x470 [ 507.095801][ T2865] ? __kasan_check_read+0x11/0x20 [ 507.100814][ T2865] ? __fdget_pos+0x27e/0x310 [ 507.106033][ T2865] ksys_write+0x198/0x2c0 [ 507.110448][ T2865] ? __ia32_sys_read+0x90/0x90 [ 507.115678][ T2865] ? debug_smp_processor_id+0x17/0x20 [ 507.121303][ T2865] __x64_sys_write+0x7b/0x90 [ 507.126055][ T2865] do_syscall_64+0x34/0x70 [ 507.130951][ T2865] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 507.137236][ T2865] RIP: 0033:0x7f48883727a9 [ 507.141727][ T2865] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 507.162543][ T2865] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 507.171179][ T2865] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 507.179154][ T2865] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 507.187259][ T2865] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 507.197046][ T2865] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 507.205314][ T2865] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000001f [ 507.213567][ T2865] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 507.257244][ T2874] FAULT_INJECTION: forcing a failure. [ 507.257244][ T2874] name failslab, interval 1, probability 0, space 0, times 0 [ 507.269948][ T2874] CPU: 1 PID: 2874 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 507.280546][ T2874] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 507.290753][ T2874] Call Trace: [ 507.294048][ T2874] dump_stack_lvl+0x1e2/0x24b [ 507.298723][ T2874] ? bfq_pos_tree_add_move+0x43e/0x43e [ 507.304381][ T2874] ? selinux_kernfs_init_security+0x1a8/0x760 [ 507.310771][ T2874] dump_stack+0x15/0x17 [ 507.315353][ T2874] should_fail+0x3c0/0x510 [ 507.319970][ T2874] ? __kernfs_new_node+0x99/0x6e0 [ 507.324997][ T2874] __should_failslab+0x9f/0xe0 [ 507.329844][ T2874] should_failslab+0x9/0x20 [ 507.334428][ T2874] __kmalloc_track_caller+0x5f/0x350 [ 507.340048][ T2874] kstrdup_const+0x55/0x90 [ 507.344558][ T2874] __kernfs_new_node+0x99/0x6e0 [ 507.349687][ T2874] ? is_module_text_address+0xe1/0x140 [ 507.355337][ T2874] ? kernfs_new_node+0x170/0x170 [ 507.360395][ T2874] ? ptr_to_hashval+0x60/0x60 [ 507.365070][ T2874] ? mutex_lock+0xb2/0x1e0 [ 507.369480][ T2874] ? snprintf+0xd6/0x120 [ 507.373906][ T2874] ? mutex_unlock+0x29/0xf0 [ 507.378679][ T2874] kernfs_new_node+0x97/0x170 [ 507.383374][ T2874] __kernfs_create_file+0x4a/0x270 [ 507.388571][ T2874] cgroup_addrm_files+0xab8/0xfe0 [ 507.393802][ T2874] ? ____kasan_kmalloc+0xdc/0x110 [ 507.398948][ T2874] ? __kasan_kmalloc+0x9/0x10 [ 507.404189][ T2874] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 507.410505][ T2874] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 507.417169][ T2874] ? delete_node+0x759/0x7b0 [ 507.421871][ T2874] ? __kasan_check_read+0x11/0x20 [ 507.427070][ T2874] ? idr_replace+0x1c4/0x230 [ 507.431656][ T2874] ? idr_get_next+0x4b0/0x4b0 [ 507.436433][ T2874] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 507.441685][ T2874] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 507.446972][ T2874] css_populate_dir+0x137/0x370 [ 507.451820][ T2874] cgroup_apply_control_enable+0x8b9/0x12f0 [ 507.457797][ T2874] cgroup_apply_control+0x8e/0x7e0 [ 507.462920][ T2874] ? css_next_child+0x160/0x160 [ 507.467846][ T2874] ? stack_trace_save+0x12d/0x1f0 [ 507.472858][ T2874] ? io_schedule+0x120/0x120 [ 507.478055][ T2874] ? kernfs_fop_write_iter+0x15e/0x410 [ 507.483532][ T2874] ? __kasan_check_write+0x14/0x20 [ 507.489085][ T2874] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 507.494546][ T2874] cgroup_subtree_control_write+0xd19/0x1310 [ 507.500863][ T2874] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 507.507017][ T2874] ? __kasan_check_write+0x14/0x20 [ 507.512295][ T2874] ? _copy_from_iter+0x3fb/0xd60 [ 507.517230][ T2874] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 507.523485][ T2874] cgroup_file_write+0x28e/0x590 [ 507.528524][ T2874] ? cgroup_seqfile_stop+0xc0/0xc0 [ 507.533909][ T2874] ? mutex_trylock+0x180/0x180 [ 507.538943][ T2874] ? __kasan_check_write+0x14/0x20 [ 507.544672][ T2874] kernfs_fop_write_iter+0x2d0/0x410 [ 507.550273][ T2874] ? cgroup_seqfile_stop+0xc0/0xc0 [ 507.556061][ T2874] vfs_write+0xc4a/0xf80 [ 507.560303][ T2874] ? slab_free_freelist_hook+0xcc/0x1a0 [ 507.565853][ T2874] ? kernel_write+0x420/0x420 [ 507.570837][ T2874] ? do_sys_openat2+0x397/0x470 [ 507.575688][ T2874] ? __kasan_check_read+0x11/0x20 [ 507.580922][ T2874] ? __fdget_pos+0x27e/0x310 [ 507.585636][ T2874] ksys_write+0x198/0x2c0 [ 507.590160][ T2874] ? __kasan_check_write+0x14/0x20 [ 507.595576][ T2874] ? __ia32_sys_read+0x90/0x90 [ 507.600785][ T2874] ? debug_smp_processor_id+0x17/0x20 [ 507.606257][ T2874] __x64_sys_write+0x7b/0x90 [ 507.611186][ T2874] do_syscall_64+0x34/0x70 [ 507.615602][ T2874] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 507.621596][ T2874] RIP: 0033:0x7f48883727a9 [ 507.626007][ T2874] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 507.645998][ T2874] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 507.655407][ T2874] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 507.663861][ T2874] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 507.671999][ T2874] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 507.679974][ T2874] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 507.687940][ T2874] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000020 [ 507.696049][ T2874] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 507.737252][ T2873] FAULT_INJECTION: forcing a failure. [ 507.737252][ T2873] name failslab, interval 1, probability 0, space 0, times 0 [ 507.750325][ T2873] CPU: 0 PID: 2873 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 507.761139][ T2873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 507.771182][ T2873] Call Trace: [ 507.774483][ T2873] dump_stack_lvl+0x1e2/0x24b [ 507.779433][ T2873] ? bfq_pos_tree_add_move+0x43e/0x43e [ 507.785000][ T2873] ? selinux_kernfs_init_security+0x1a8/0x760 [ 507.791287][ T2873] dump_stack+0x15/0x17 [ 507.795631][ T2873] should_fail+0x3c0/0x510 [ 507.800223][ T2873] ? __kernfs_new_node+0x99/0x6e0 [ 507.805380][ T2873] __should_failslab+0x9f/0xe0 [ 507.810506][ T2873] should_failslab+0x9/0x20 [ 507.815118][ T2873] __kmalloc_track_caller+0x5f/0x350 [ 507.820594][ T2873] kstrdup_const+0x55/0x90 [ 507.825098][ T2873] __kernfs_new_node+0x99/0x6e0 [ 507.830127][ T2873] ? is_module_text_address+0xe1/0x140 [ 507.835576][ T2873] ? kernfs_new_node+0x170/0x170 [ 507.840614][ T2873] ? ptr_to_hashval+0x60/0x60 [ 507.845274][ T2873] ? mutex_lock+0xb2/0x1e0 [ 507.849700][ T2873] ? snprintf+0xd6/0x120 [ 507.853926][ T2873] ? mutex_unlock+0x29/0xf0 [ 507.858422][ T2873] kernfs_new_node+0x97/0x170 [ 507.863109][ T2873] __kernfs_create_file+0x4a/0x270 [ 507.868223][ T2873] cgroup_addrm_files+0xab8/0xfe0 [ 507.873373][ T2873] ? ____kasan_kmalloc+0xdc/0x110 [ 507.878908][ T2873] ? __kasan_kmalloc+0x9/0x10 [ 507.883591][ T2873] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 507.889135][ T2873] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 507.895465][ T2873] ? delete_node+0x759/0x7b0 [ 507.900172][ T2873] ? __kasan_check_read+0x11/0x20 [ 507.905272][ T2873] ? idr_replace+0x1c4/0x230 [ 507.910258][ T2873] ? idr_get_next+0x4b0/0x4b0 [ 507.915196][ T2873] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 507.920222][ T2873] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 507.925575][ T2873] css_populate_dir+0x137/0x370 [ 507.930510][ T2873] cgroup_apply_control_enable+0x8b9/0x12f0 [ 507.936838][ T2873] cgroup_apply_control+0x8e/0x7e0 [ 507.941949][ T2873] ? css_next_child+0x160/0x160 [ 507.946883][ T2873] ? stack_trace_save+0x12d/0x1f0 [ 507.951917][ T2873] ? io_schedule+0x120/0x120 [ 507.956764][ T2873] ? kernfs_fop_write_iter+0x15e/0x410 [ 507.962309][ T2873] ? __kasan_check_write+0x14/0x20 [ 507.967625][ T2873] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 507.972901][ T2873] cgroup_subtree_control_write+0xd19/0x1310 [ 507.978882][ T2873] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 507.984850][ T2873] ? __kasan_check_write+0x14/0x20 [ 507.990514][ T2873] ? _copy_from_iter+0x3fb/0xd60 [ 507.995468][ T2873] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 508.001452][ T2873] cgroup_file_write+0x28e/0x590 [ 508.006965][ T2873] ? cgroup_seqfile_stop+0xc0/0xc0 [ 508.012100][ T2873] ? mutex_trylock+0x180/0x180 [ 508.016886][ T2873] ? __kasan_check_write+0x14/0x20 [ 508.023072][ T2873] kernfs_fop_write_iter+0x2d0/0x410 [ 508.029213][ T2873] ? cgroup_seqfile_stop+0xc0/0xc0 [ 508.034439][ T2873] vfs_write+0xc4a/0xf80 [ 508.038946][ T2873] ? slab_free_freelist_hook+0xcc/0x1a0 [ 508.044571][ T2873] ? kernel_write+0x420/0x420 [ 508.049542][ T2873] ? do_sys_openat2+0x397/0x470 [ 508.054385][ T2873] ? __kasan_check_read+0x11/0x20 [ 508.059631][ T2873] ? __fdget_pos+0x27e/0x310 [ 508.064719][ T2873] ksys_write+0x198/0x2c0 [ 508.069058][ T2873] ? __ia32_sys_read+0x90/0x90 [ 508.073816][ T2873] ? debug_smp_processor_id+0x17/0x20 [ 508.079526][ T2873] __x64_sys_write+0x7b/0x90 [ 508.084358][ T2873] do_syscall_64+0x34/0x70 [ 508.088845][ T2873] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 508.094830][ T2873] RIP: 0033:0x7f48883727a9 [ 508.099242][ T2873] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 508.119044][ T2873] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 508.127637][ T2873] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 508.135965][ T2873] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 508.144150][ T2873] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 508.153441][ T2873] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 508.161427][ T2873] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000028 [ 508.169567][ T2873] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 508.217293][ T2875] FAULT_INJECTION: forcing a failure. [ 508.217293][ T2875] name failslab, interval 1, probability 0, space 0, times 0 [ 508.230147][ T2875] CPU: 0 PID: 2875 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 508.240550][ T2875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 508.250597][ T2875] Call Trace: [ 508.253928][ T2875] dump_stack_lvl+0x1e2/0x24b [ 508.258596][ T2875] ? bfq_pos_tree_add_move+0x43e/0x43e [ 508.264076][ T2875] ? selinux_kernfs_init_security+0x1a8/0x760 [ 508.270150][ T2875] dump_stack+0x15/0x17 [ 508.274309][ T2875] should_fail+0x3c0/0x510 [ 508.278729][ T2875] ? __kernfs_new_node+0x99/0x6e0 [ 508.283736][ T2875] __should_failslab+0x9f/0xe0 [ 508.288484][ T2875] should_failslab+0x9/0x20 [ 508.292978][ T2875] __kmalloc_track_caller+0x5f/0x350 [ 508.298269][ T2875] kstrdup_const+0x55/0x90 [ 508.302671][ T2875] __kernfs_new_node+0x99/0x6e0 [ 508.307533][ T2875] ? is_module_text_address+0xe1/0x140 [ 508.313898][ T2875] ? kernfs_new_node+0x170/0x170 [ 508.318827][ T2875] ? ptr_to_hashval+0x60/0x60 [ 508.323745][ T2875] ? arch_stack_walk+0xf8/0x140 [ 508.328607][ T2875] ? snprintf+0xd6/0x120 [ 508.332871][ T2875] kernfs_new_node+0x97/0x170 [ 508.337566][ T2875] __kernfs_create_file+0x4a/0x270 [ 508.342863][ T2875] cgroup_addrm_files+0xab8/0xfe0 [ 508.348157][ T2875] ? ____kasan_kmalloc+0xdc/0x110 [ 508.353189][ T2875] ? __kasan_kmalloc+0x9/0x10 [ 508.357866][ T2875] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 508.363402][ T2875] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 508.369571][ T2875] ? delete_node+0x759/0x7b0 [ 508.374247][ T2875] ? __kasan_check_read+0x11/0x20 [ 508.379839][ T2875] ? delete_node+0x759/0x7b0 [ 508.384429][ T2875] ? __kasan_check_write+0x14/0x20 [ 508.389732][ T2875] ? idr_replace+0x1c4/0x230 [ 508.394537][ T2875] ? idr_get_next+0x4b0/0x4b0 [ 508.399496][ T2875] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 508.405025][ T2875] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 508.410326][ T2875] css_populate_dir+0x137/0x370 [ 508.415178][ T2875] cgroup_apply_control_enable+0x8b9/0x12f0 [ 508.421066][ T2875] cgroup_apply_control+0x8e/0x7e0 [ 508.426338][ T2875] ? css_next_child+0x160/0x160 [ 508.431173][ T2875] ? io_schedule+0x120/0x120 [ 508.435743][ T2875] ? kernfs_fop_write_iter+0x15e/0x410 [ 508.441223][ T2875] ? __kasan_check_write+0x14/0x20 [ 508.446477][ T2875] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 508.451941][ T2875] cgroup_subtree_control_write+0xd19/0x1310 [ 508.457915][ T2875] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 508.463879][ T2875] ? __kasan_check_write+0x14/0x20 [ 508.469093][ T2875] ? _copy_from_iter+0x3fb/0xd60 [ 508.474120][ T2875] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 508.480212][ T2875] cgroup_file_write+0x28e/0x590 [ 508.485189][ T2875] ? cgroup_seqfile_stop+0xc0/0xc0 [ 508.490469][ T2875] ? mutex_trylock+0x180/0x180 [ 508.495845][ T2875] ? __kasan_check_write+0x14/0x20 [ 508.500949][ T2875] kernfs_fop_write_iter+0x2d0/0x410 [ 508.506471][ T2875] ? cgroup_seqfile_stop+0xc0/0xc0 [ 508.511676][ T2875] vfs_write+0xc4a/0xf80 [ 508.515927][ T2875] ? kernel_write+0x420/0x420 [ 508.520685][ T2875] ? do_sys_openat2+0x397/0x470 [ 508.525640][ T2875] ? __kasan_check_read+0x11/0x20 [ 508.530802][ T2875] ? __fdget_pos+0x27e/0x310 [ 508.535512][ T2875] ksys_write+0x198/0x2c0 [ 508.539854][ T2875] ? __ia32_sys_read+0x90/0x90 [ 508.545049][ T2875] ? debug_smp_processor_id+0x17/0x20 [ 508.550627][ T2875] __x64_sys_write+0x7b/0x90 [ 508.555297][ T2875] do_syscall_64+0x34/0x70 [ 508.560511][ T2875] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 508.566832][ T2875] RIP: 0033:0x7f48883727a9 [ 508.571243][ T2875] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 508.590840][ T2875] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 508.599481][ T2875] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 508.607454][ T2875] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 508.615546][ T2875] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 508.623603][ T2875] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 508.631671][ T2875] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000021 [ 508.639987][ T2875] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 508.727111][ T2866] FAULT_INJECTION: forcing a failure. [ 508.727111][ T2866] name failslab, interval 1, probability 0, space 0, times 0 [ 508.740530][ T2866] CPU: 0 PID: 2866 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 508.751327][ T2866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 508.761466][ T2866] Call Trace: [ 508.764756][ T2866] dump_stack_lvl+0x1e2/0x24b [ 508.769446][ T2866] ? bfq_pos_tree_add_move+0x43e/0x43e [ 508.774910][ T2866] ? selinux_kernfs_init_security+0x1a8/0x760 [ 508.781175][ T2866] dump_stack+0x15/0x17 [ 508.785419][ T2866] should_fail+0x3c0/0x510 [ 508.790223][ T2866] ? __kernfs_new_node+0x99/0x6e0 [ 508.795273][ T2866] __should_failslab+0x9f/0xe0 [ 508.800050][ T2866] should_failslab+0x9/0x20 [ 508.804551][ T2866] __kmalloc_track_caller+0x5f/0x350 [ 508.809835][ T2866] kstrdup_const+0x55/0x90 [ 508.814246][ T2866] __kernfs_new_node+0x99/0x6e0 [ 508.819094][ T2866] ? is_module_text_address+0xe1/0x140 [ 508.824540][ T2866] ? kernfs_new_node+0x170/0x170 [ 508.829557][ T2866] ? ptr_to_hashval+0x60/0x60 [ 508.834218][ T2866] ? mutex_lock+0xb2/0x1e0 [ 508.838619][ T2866] ? snprintf+0xd6/0x120 [ 508.842862][ T2866] ? mutex_unlock+0x29/0xf0 [ 508.847347][ T2866] kernfs_new_node+0x97/0x170 [ 508.852275][ T2866] __kernfs_create_file+0x4a/0x270 [ 508.857397][ T2866] cgroup_addrm_files+0xab8/0xfe0 [ 508.862421][ T2866] ? ____kasan_kmalloc+0xdc/0x110 [ 508.867553][ T2866] ? __kasan_kmalloc+0x9/0x10 [ 508.872416][ T2866] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 508.878248][ T2866] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 508.884396][ T2866] ? delete_node+0x759/0x7b0 [ 508.888988][ T2866] ? __kasan_check_read+0x11/0x20 [ 508.894015][ T2866] ? idr_replace+0x1c4/0x230 [ 508.898593][ T2866] ? idr_get_next+0x4b0/0x4b0 [ 508.903278][ T2866] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 508.908382][ T2866] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 508.914126][ T2866] css_populate_dir+0x137/0x370 [ 508.918984][ T2866] cgroup_apply_control_enable+0x8b9/0x12f0 [ 508.924878][ T2866] cgroup_apply_control+0x8e/0x7e0 [ 508.929977][ T2866] ? css_next_child+0x160/0x160 [ 508.934923][ T2866] ? stack_trace_save+0x12d/0x1f0 [ 508.939951][ T2866] ? io_schedule+0x120/0x120 [ 508.944526][ T2866] ? kernfs_fop_write_iter+0x15e/0x410 [ 508.949970][ T2866] ? __kasan_check_write+0x14/0x20 [ 508.955308][ T2866] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 508.960741][ T2866] cgroup_subtree_control_write+0xd19/0x1310 [ 508.966814][ T2866] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 508.972783][ T2866] ? __kasan_check_write+0x14/0x20 [ 508.977879][ T2866] ? _copy_from_iter+0x3fb/0xd60 [ 508.983071][ T2866] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 508.989413][ T2866] cgroup_file_write+0x28e/0x590 [ 508.994376][ T2866] ? cgroup_seqfile_stop+0xc0/0xc0 [ 508.999502][ T2866] ? mutex_trylock+0x180/0x180 [ 509.004555][ T2866] ? __kasan_check_write+0x14/0x20 [ 509.009667][ T2866] kernfs_fop_write_iter+0x2d0/0x410 [ 509.015136][ T2866] ? cgroup_seqfile_stop+0xc0/0xc0 [ 509.020259][ T2866] vfs_write+0xc4a/0xf80 [ 509.024505][ T2866] ? slab_free_freelist_hook+0xcc/0x1a0 [ 509.030460][ T2866] ? kernel_write+0x420/0x420 [ 509.035150][ T2866] ? do_sys_openat2+0x397/0x470 [ 509.040280][ T2866] ? __kasan_check_read+0x11/0x20 [ 509.045383][ T2866] ? __fdget_pos+0x27e/0x310 [ 509.050058][ T2866] ksys_write+0x198/0x2c0 [ 509.054599][ T2866] ? __ia32_sys_read+0x90/0x90 [ 509.059613][ T2866] ? debug_smp_processor_id+0x17/0x20 [ 509.064989][ T2866] __x64_sys_write+0x7b/0x90 [ 509.069587][ T2866] do_syscall_64+0x34/0x70 [ 509.074077][ T2866] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 509.079968][ T2866] RIP: 0033:0x7f48883727a9 [ 509.084393][ T2866] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 509.104339][ T2866] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 509.113026][ T2866] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 509.121256][ T2866] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 509.129240][ T2866] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 509.137406][ T2866] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 509.146253][ T2866] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000021 [ 509.154614][ T2866] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 509.187295][ T2878] FAULT_INJECTION: forcing a failure. [ 509.187295][ T2878] name failslab, interval 1, probability 0, space 0, times 0 [ 509.201026][ T2878] CPU: 1 PID: 2878 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 509.211691][ T2878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 509.221735][ T2878] Call Trace: [ 509.225033][ T2878] dump_stack_lvl+0x1e2/0x24b [ 509.229793][ T2878] ? bfq_pos_tree_add_move+0x43e/0x43e [ 509.236001][ T2878] ? selinux_kernfs_init_security+0x1a8/0x760 [ 509.242114][ T2878] dump_stack+0x15/0x17 [ 509.246336][ T2878] should_fail+0x3c0/0x510 [ 509.250946][ T2878] ? __kernfs_new_node+0x99/0x6e0 [ 509.256000][ T2878] __should_failslab+0x9f/0xe0 [ 509.260804][ T2878] should_failslab+0x9/0x20 [ 509.265445][ T2878] __kmalloc_track_caller+0x5f/0x350 [ 509.270774][ T2878] kstrdup_const+0x55/0x90 [ 509.275191][ T2878] __kernfs_new_node+0x99/0x6e0 [ 509.280208][ T2878] ? is_module_text_address+0xe1/0x140 [ 509.285647][ T2878] ? kernfs_new_node+0x170/0x170 [ 509.290570][ T2878] ? ptr_to_hashval+0x60/0x60 [ 509.295232][ T2878] ? mutex_lock+0xb2/0x1e0 [ 509.299885][ T2878] ? snprintf+0xd6/0x120 [ 509.304125][ T2878] ? mutex_unlock+0x29/0xf0 [ 509.308606][ T2878] kernfs_new_node+0x97/0x170 [ 509.313279][ T2878] __kernfs_create_file+0x4a/0x270 [ 509.318403][ T2878] cgroup_addrm_files+0xab8/0xfe0 [ 509.323432][ T2878] ? ____kasan_kmalloc+0xdc/0x110 [ 509.328606][ T2878] ? __kasan_kmalloc+0x9/0x10 [ 509.333349][ T2878] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 509.339152][ T2878] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 509.345779][ T2878] ? delete_node+0x759/0x7b0 [ 509.350535][ T2878] ? __kasan_check_read+0x11/0x20 [ 509.355770][ T2878] ? idr_replace+0x1c4/0x230 [ 509.360353][ T2878] ? idr_get_next+0x4b0/0x4b0 [ 509.365016][ T2878] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 509.370196][ T2878] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 509.375468][ T2878] css_populate_dir+0x137/0x370 [ 509.380320][ T2878] cgroup_apply_control_enable+0x8b9/0x12f0 [ 509.386229][ T2878] cgroup_apply_control+0x8e/0x7e0 [ 509.391346][ T2878] ? css_next_child+0x160/0x160 [ 509.396194][ T2878] ? stack_trace_save+0x12d/0x1f0 [ 509.401216][ T2878] ? io_schedule+0x120/0x120 [ 509.406584][ T2878] ? kernfs_fop_write_iter+0x15e/0x410 [ 509.412026][ T2878] ? __kasan_check_write+0x14/0x20 [ 509.417139][ T2878] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 509.422418][ T2878] cgroup_subtree_control_write+0xd19/0x1310 [ 509.428529][ T2878] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 509.434510][ T2878] ? __kasan_check_write+0x14/0x20 [ 509.439824][ T2878] ? _copy_from_iter+0x3fb/0xd60 [ 509.444849][ T2878] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 509.450923][ T2878] cgroup_file_write+0x28e/0x590 [ 509.455850][ T2878] ? cgroup_seqfile_stop+0xc0/0xc0 [ 509.460943][ T2878] ? mutex_trylock+0x180/0x180 [ 509.465798][ T2878] ? __kasan_check_write+0x14/0x20 [ 509.470892][ T2878] kernfs_fop_write_iter+0x2d0/0x410 [ 509.476162][ T2878] ? cgroup_seqfile_stop+0xc0/0xc0 [ 509.481297][ T2878] vfs_write+0xc4a/0xf80 [ 509.485550][ T2878] ? slab_free_freelist_hook+0xcc/0x1a0 [ 509.491283][ T2878] ? kernel_write+0x420/0x420 [ 509.496056][ T2878] ? do_sys_openat2+0x397/0x470 [ 509.501126][ T2878] ? __kasan_check_read+0x11/0x20 [ 509.506686][ T2878] ? __fdget_pos+0x27e/0x310 [ 509.511270][ T2878] ksys_write+0x198/0x2c0 [ 509.516450][ T2878] ? __ia32_sys_read+0x90/0x90 [ 509.521509][ T2878] ? debug_smp_processor_id+0x17/0x20 [ 509.526878][ T2878] __x64_sys_write+0x7b/0x90 [ 509.531475][ T2878] do_syscall_64+0x34/0x70 [ 509.535890][ T2878] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 509.541763][ T2878] RIP: 0033:0x7f48883727a9 [ 509.546161][ T2878] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 509.565923][ T2878] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 509.574335][ T2878] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 509.582293][ T2878] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 509.590248][ T2878] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 509.598303][ T2878] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 509.606273][ T2878] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000022 [ 509.614701][ T2878] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 509.647340][ T2876] FAULT_INJECTION: forcing a failure. [ 509.647340][ T2876] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 509.661113][ T2876] CPU: 1 PID: 2876 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 509.671980][ T2876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 509.682534][ T2876] Call Trace: [ 509.685831][ T2876] dump_stack_lvl+0x1e2/0x24b [ 509.690595][ T2876] ? bfq_pos_tree_add_move+0x43e/0x43e [ 509.696037][ T2876] ? stack_trace_save+0x12d/0x1f0 [ 509.701042][ T2876] dump_stack+0x15/0x17 [ 509.705271][ T2876] should_fail+0x3c0/0x510 [ 509.709755][ T2876] should_fail_alloc_page+0x50/0x60 [ 509.714940][ T2876] __alloc_pages_nodemask+0x1c0/0x890 [ 509.720423][ T2876] ? __kasan_check_write+0x14/0x20 [ 509.725517][ T2876] ? delete_node+0x759/0x7b0 [ 509.730279][ T2876] ? mutex_trylock+0x180/0x180 [ 509.735043][ T2876] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 509.740749][ T2876] ? kernfs_xattr_get+0x80/0x90 [ 509.745805][ T2876] ? selinux_kernfs_init_security+0x1a8/0x760 [ 509.752059][ T2876] allocate_slab+0x78/0x540 [ 509.756572][ T2876] ___slab_alloc+0x131/0x2e0 [ 509.761174][ T2876] ? __kernfs_new_node+0xdb/0x6e0 [ 509.766339][ T2876] __slab_alloc+0x63/0xa0 [ 509.770662][ T2876] ? __kernfs_new_node+0xdb/0x6e0 [ 509.775864][ T2876] kmem_cache_alloc+0x1ef/0x300 [ 509.780813][ T2876] ? __kernfs_new_node+0xdb/0x6e0 [ 509.786195][ T2876] __kernfs_new_node+0xdb/0x6e0 [ 509.791040][ T2876] ? is_module_text_address+0xe1/0x140 [ 509.796590][ T2876] ? kernfs_new_node+0x170/0x170 [ 509.801633][ T2876] ? ptr_to_hashval+0x60/0x60 [ 509.806302][ T2876] ? arch_stack_walk+0xf8/0x140 [ 509.811205][ T2876] ? snprintf+0xd6/0x120 [ 509.815442][ T2876] kernfs_new_node+0x97/0x170 [ 509.820232][ T2876] __kernfs_create_file+0x4a/0x270 [ 509.825922][ T2876] cgroup_addrm_files+0xab8/0xfe0 [ 509.831054][ T2876] ? ____kasan_kmalloc+0xdc/0x110 [ 509.836079][ T2876] ? __kasan_kmalloc+0x9/0x10 [ 509.840955][ T2876] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 509.846495][ T2876] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 509.852884][ T2876] ? delete_node+0x759/0x7b0 [ 509.857579][ T2876] ? __kasan_check_read+0x11/0x20 [ 509.862590][ T2876] ? delete_node+0x759/0x7b0 [ 509.867158][ T2876] ? __kasan_check_write+0x14/0x20 [ 509.872369][ T2876] ? idr_replace+0x1c4/0x230 [ 509.876949][ T2876] ? idr_get_next+0x4b0/0x4b0 [ 509.881598][ T2876] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 509.886592][ T2876] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 509.891764][ T2876] css_populate_dir+0x137/0x370 [ 509.896592][ T2876] cgroup_apply_control_enable+0x8b9/0x12f0 [ 509.902584][ T2876] cgroup_apply_control+0x8e/0x7e0 [ 509.907791][ T2876] ? css_next_child+0x160/0x160 [ 509.912802][ T2876] ? stack_trace_save+0x12d/0x1f0 [ 509.917823][ T2876] ? io_schedule+0x120/0x120 [ 509.922394][ T2876] ? kernfs_fop_write_iter+0x15e/0x410 [ 509.928107][ T2876] ? __kasan_check_write+0x14/0x20 [ 509.933454][ T2876] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 509.938860][ T2876] cgroup_subtree_control_write+0xd19/0x1310 [ 509.944850][ T2876] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 509.950937][ T2876] ? __kasan_check_write+0x14/0x20 [ 509.956136][ T2876] ? _copy_from_iter+0x3fb/0xd60 [ 509.961320][ T2876] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 509.967471][ T2876] cgroup_file_write+0x28e/0x590 [ 509.972409][ T2876] ? cgroup_seqfile_stop+0xc0/0xc0 [ 509.977507][ T2876] ? mutex_trylock+0x180/0x180 [ 509.982694][ T2876] ? __kasan_check_write+0x14/0x20 [ 509.987912][ T2876] kernfs_fop_write_iter+0x2d0/0x410 [ 509.993451][ T2876] ? cgroup_seqfile_stop+0xc0/0xc0 [ 509.999216][ T2876] vfs_write+0xc4a/0xf80 [ 510.003580][ T2876] ? slab_free_freelist_hook+0xcc/0x1a0 [ 510.009207][ T2876] ? kernel_write+0x420/0x420 [ 510.013972][ T2876] ? do_sys_openat2+0x397/0x470 [ 510.018907][ T2876] ? __kasan_check_read+0x11/0x20 [ 510.024124][ T2876] ? __fdget_pos+0x27e/0x310 [ 510.029200][ T2876] ksys_write+0x198/0x2c0 [ 510.033529][ T2876] ? __ia32_sys_read+0x90/0x90 [ 510.038299][ T2876] ? debug_smp_processor_id+0x17/0x20 [ 510.043859][ T2876] __x64_sys_write+0x7b/0x90 [ 510.048458][ T2876] do_syscall_64+0x34/0x70 [ 510.052862][ T2876] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 510.058909][ T2876] RIP: 0033:0x7f48883727a9 [ 510.063494][ T2876] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 510.083462][ T2876] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 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 [ 510.092391][ T2876] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 510.100548][ T2876] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 510.108598][ T2876] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 510.116753][ T2876] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 510.125358][ T2876] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000029 [ 510.177428][ T2879] FAULT_INJECTION: forcing a failure. [ 510.177428][ T2879] name failslab, interval 1, probability 0, space 0, times 0 [ 510.190531][ T2879] CPU: 0 PID: 2879 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 510.201860][ T2879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 510.212369][ T2879] Call Trace: [ 510.215873][ T2879] dump_stack_lvl+0x1e2/0x24b [ 510.220881][ T2879] ? panic+0x7d7/0x7d7 [ 510.225151][ T2879] ? bfq_pos_tree_add_move+0x43e/0x43e [ 510.230712][ T2879] ? selinux_kernfs_init_security+0x1a8/0x760 [ 510.236836][ T2879] dump_stack+0x15/0x17 [ 510.241002][ T2879] should_fail+0x3c0/0x510 [ 510.245590][ T2879] __should_failslab+0x9f/0xe0 [ 510.251016][ T2879] should_failslab+0x9/0x20 [ 510.255638][ T2879] kmem_cache_alloc+0x3f/0x300 [ 510.260658][ T2879] ? __kernfs_new_node+0xdb/0x6e0 [ 510.265826][ T2879] __kernfs_new_node+0xdb/0x6e0 [ 510.270675][ T2879] ? is_module_text_address+0xe1/0x140 [ 510.276126][ T2879] ? kernfs_new_node+0x170/0x170 [ 510.281177][ T2879] ? ptr_to_hashval+0x60/0x60 [ 510.285844][ T2879] ? arch_stack_walk+0xf8/0x140 [ 510.290706][ T2879] ? snprintf+0xd6/0x120 [ 510.294934][ T2879] kernfs_new_node+0x97/0x170 [ 510.299679][ T2879] __kernfs_create_file+0x4a/0x270 [ 510.304912][ T2879] cgroup_addrm_files+0xab8/0xfe0 [ 510.310046][ T2879] ? ____kasan_kmalloc+0xdc/0x110 [ 510.315057][ T2879] ? __kasan_kmalloc+0x9/0x10 [ 510.319735][ T2879] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 510.325408][ T2879] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 510.331587][ T2879] ? delete_node+0x759/0x7b0 [ 510.336307][ T2879] ? __kasan_check_read+0x11/0x20 [ 510.341501][ T2879] ? delete_node+0x759/0x7b0 [ 510.346347][ T2879] ? __kasan_check_write+0x14/0x20 [ 510.351463][ T2879] ? idr_replace+0x1c4/0x230 [ 510.356350][ T2879] ? idr_get_next+0x4b0/0x4b0 [ 510.361385][ T2879] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 510.366418][ T2879] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 510.371625][ T2879] css_populate_dir+0x137/0x370 [ 510.376676][ T2879] cgroup_apply_control_enable+0x8b9/0x12f0 [ 510.382687][ T2879] cgroup_apply_control+0x8e/0x7e0 [ 510.388094][ T2879] ? css_next_child+0x160/0x160 [ 510.392940][ T2879] ? stack_trace_save+0x12d/0x1f0 [ 510.397980][ T2879] ? io_schedule+0x120/0x120 [ 510.402574][ T2879] ? kernfs_fop_write_iter+0x15e/0x410 [ 510.408175][ T2879] ? __kasan_check_write+0x14/0x20 [ 510.413288][ T2879] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 510.418578][ T2879] cgroup_subtree_control_write+0xd19/0x1310 [ 510.424679][ T2879] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 510.430655][ T2879] ? __kasan_check_write+0x14/0x20 [ 510.435790][ T2879] ? _copy_from_iter+0x3fb/0xd60 [ 510.440715][ T2879] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 510.446725][ T2879] cgroup_file_write+0x28e/0x590 [ 510.451679][ T2879] ? cgroup_seqfile_stop+0xc0/0xc0 [ 510.456907][ T2879] ? mutex_trylock+0x180/0x180 [ 510.461957][ T2879] ? __kasan_check_write+0x14/0x20 [ 510.467231][ T2879] kernfs_fop_write_iter+0x2d0/0x410 [ 510.472619][ T2879] ? cgroup_seqfile_stop+0xc0/0xc0 [ 510.477734][ T2879] vfs_write+0xc4a/0xf80 [ 510.482055][ T2879] ? slab_free_freelist_hook+0xcc/0x1a0 [ 510.487596][ T2879] ? kernel_write+0x420/0x420 [ 510.492495][ T2879] ? do_sys_openat2+0x397/0x470 [ 510.497451][ T2879] ? __kasan_check_read+0x11/0x20 [ 510.502536][ T2879] ? __fdget_pos+0x27e/0x310 [ 510.507131][ T2879] ksys_write+0x198/0x2c0 [ 510.511491][ T2879] ? __ia32_sys_read+0x90/0x90 [ 510.516245][ T2879] ? debug_smp_processor_id+0x17/0x20 [ 510.521629][ T2879] __x64_sys_write+0x7b/0x90 [ 510.526218][ T2879] do_syscall_64+0x34/0x70 [ 510.530628][ T2879] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 510.536514][ T2879] RIP: 0033:0x7f48883727a9 [ 510.540917][ T2879] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 510.560853][ T2879] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 510.569256][ T2879] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 510.577210][ T2879] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 510.585263][ T2879] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 510.593424][ T2879] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 510.601402][ T2879] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000023 [ 510.609644][ T2879] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 510.657358][ T2877] FAULT_INJECTION: forcing a failure. [ 510.657358][ T2877] name failslab, interval 1, probability 0, space 0, times 0 [ 510.670554][ T2877] CPU: 1 PID: 2877 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 510.680956][ T2877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 510.691014][ T2877] Call Trace: [ 510.694329][ T2877] dump_stack_lvl+0x1e2/0x24b [ 510.699075][ T2877] ? bfq_pos_tree_add_move+0x43e/0x43e [ 510.704739][ T2877] ? selinux_kernfs_init_security+0x1a8/0x760 [ 510.710793][ T2877] dump_stack+0x15/0x17 [ 510.714961][ T2877] should_fail+0x3c0/0x510 [ 510.719379][ T2877] ? __kernfs_new_node+0x99/0x6e0 [ 510.724560][ T2877] __should_failslab+0x9f/0xe0 [ 510.729319][ T2877] should_failslab+0x9/0x20 [ 510.733978][ T2877] __kmalloc_track_caller+0x5f/0x350 [ 510.739254][ T2877] kstrdup_const+0x55/0x90 [ 510.743657][ T2877] __kernfs_new_node+0x99/0x6e0 [ 510.748576][ T2877] ? is_module_text_address+0xe1/0x140 [ 510.754017][ T2877] ? kernfs_new_node+0x170/0x170 [ 510.758951][ T2877] ? ptr_to_hashval+0x60/0x60 [ 510.763620][ T2877] ? mutex_lock+0xb2/0x1e0 [ 510.768039][ T2877] ? snprintf+0xd6/0x120 [ 510.772285][ T2877] ? mutex_unlock+0x29/0xf0 [ 510.777077][ T2877] kernfs_new_node+0x97/0x170 [ 510.781782][ T2877] __kernfs_create_file+0x4a/0x270 [ 510.787009][ T2877] cgroup_addrm_files+0xab8/0xfe0 [ 510.792047][ T2877] ? ____kasan_kmalloc+0xdc/0x110 [ 510.797271][ T2877] ? __kasan_kmalloc+0x9/0x10 [ 510.801956][ T2877] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 510.807682][ T2877] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 510.813945][ T2877] ? delete_node+0x759/0x7b0 [ 510.818524][ T2877] ? __kasan_check_read+0x11/0x20 [ 510.823539][ T2877] ? idr_replace+0x1c4/0x230 [ 510.828123][ T2877] ? idr_get_next+0x4b0/0x4b0 [ 510.832783][ T2877] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 510.837798][ T2877] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 510.845161][ T2877] css_populate_dir+0x137/0x370 [ 510.850505][ T2877] cgroup_apply_control_enable+0x8b9/0x12f0 [ 510.856489][ T2877] cgroup_apply_control+0x8e/0x7e0 [ 510.861620][ T2877] ? css_next_child+0x160/0x160 [ 510.866489][ T2877] ? io_schedule+0x120/0x120 [ 510.871113][ T2877] ? kernfs_fop_write_iter+0x15e/0x410 [ 510.876745][ T2877] ? __kasan_check_write+0x14/0x20 [ 510.881870][ T2877] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 510.887177][ T2877] cgroup_subtree_control_write+0xd19/0x1310 [ 510.893287][ T2877] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 510.899293][ T2877] ? __kasan_check_write+0x14/0x20 [ 510.904391][ T2877] ? _copy_from_iter+0x3fb/0xd60 [ 510.909315][ T2877] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 510.915303][ T2877] cgroup_file_write+0x28e/0x590 [ 510.920245][ T2877] ? cgroup_seqfile_stop+0xc0/0xc0 [ 510.925359][ T2877] ? mutex_trylock+0x180/0x180 [ 510.930131][ T2877] ? __kasan_check_write+0x14/0x20 [ 510.935256][ T2877] kernfs_fop_write_iter+0x2d0/0x410 [ 510.940657][ T2877] ? cgroup_seqfile_stop+0xc0/0xc0 [ 510.945793][ T2877] vfs_write+0xc4a/0xf80 [ 510.950233][ T2877] ? kernel_write+0x420/0x420 [ 510.955062][ T2877] ? do_sys_openat2+0x397/0x470 [ 510.959951][ T2877] ? __kasan_check_read+0x11/0x20 [ 510.965141][ T2877] ? __fdget_pos+0x27e/0x310 [ 510.969818][ T2877] ksys_write+0x198/0x2c0 [ 510.974607][ T2877] ? __ia32_sys_read+0x90/0x90 [ 510.979390][ T2877] ? debug_smp_processor_id+0x17/0x20 [ 510.984758][ T2877] __x64_sys_write+0x7b/0x90 [ 510.989337][ T2877] do_syscall_64+0x34/0x70 [ 510.993742][ T2877] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 510.999809][ T2877] RIP: 0033:0x7f48883727a9 [ 511.004460][ T2877] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 511.024800][ T2877] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 511.033470][ T2877] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 511.041633][ T2877] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 511.049757][ T2877] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 511.058165][ T2877] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 511.066326][ T2877] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000022 [ 511.074446][ T2877] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 511.117364][ T2880] FAULT_INJECTION: forcing a failure. [ 511.117364][ T2880] name failslab, interval 1, probability 0, space 0, times 0 [ 511.130010][ T2880] CPU: 0 PID: 2880 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 511.140418][ T2880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 511.150457][ T2880] Call Trace: [ 511.153747][ T2880] dump_stack_lvl+0x1e2/0x24b [ 511.158419][ T2880] ? bfq_pos_tree_add_move+0x43e/0x43e [ 511.164000][ T2880] ? selinux_kernfs_init_security+0x1a8/0x760 [ 511.170176][ T2880] dump_stack+0x15/0x17 [ 511.174442][ T2880] should_fail+0x3c0/0x510 [ 511.178936][ T2880] ? __kernfs_new_node+0x99/0x6e0 [ 511.183941][ T2880] __should_failslab+0x9f/0xe0 [ 511.188694][ T2880] should_failslab+0x9/0x20 [ 511.193179][ T2880] __kmalloc_track_caller+0x5f/0x350 [ 511.198455][ T2880] kstrdup_const+0x55/0x90 [ 511.202863][ T2880] __kernfs_new_node+0x99/0x6e0 [ 511.207704][ T2880] ? is_module_text_address+0xe1/0x140 [ 511.213182][ T2880] ? kernfs_new_node+0x170/0x170 [ 511.218115][ T2880] ? ptr_to_hashval+0x60/0x60 [ 511.222925][ T2880] ? mutex_lock+0xb2/0x1e0 [ 511.227585][ T2880] ? snprintf+0xd6/0x120 [ 511.231912][ T2880] ? mutex_unlock+0x29/0xf0 [ 511.236550][ T2880] kernfs_new_node+0x97/0x170 [ 511.241213][ T2880] __kernfs_create_file+0x4a/0x270 [ 511.246309][ T2880] cgroup_addrm_files+0xab8/0xfe0 [ 511.251453][ T2880] ? ____kasan_kmalloc+0xdc/0x110 [ 511.256469][ T2880] ? __kasan_kmalloc+0x9/0x10 [ 511.261138][ T2880] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 511.266697][ T2880] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 511.272936][ T2880] ? delete_node+0x759/0x7b0 [ 511.277509][ T2880] ? __kasan_check_read+0x11/0x20 [ 511.282603][ T2880] ? idr_replace+0x1c4/0x230 [ 511.287173][ T2880] ? idr_get_next+0x4b0/0x4b0 [ 511.291940][ T2880] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 511.296979][ T2880] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 511.302178][ T2880] css_populate_dir+0x137/0x370 [ 511.307211][ T2880] cgroup_apply_control_enable+0x8b9/0x12f0 [ 511.313177][ T2880] cgroup_apply_control+0x8e/0x7e0 [ 511.318300][ T2880] ? css_next_child+0x160/0x160 [ 511.324992][ T2880] ? stack_trace_save+0x12d/0x1f0 [ 511.330099][ T2880] ? io_schedule+0x120/0x120 [ 511.335167][ T2880] ? kernfs_fop_write_iter+0x15e/0x410 [ 511.340638][ T2880] ? __kasan_check_write+0x14/0x20 [ 511.345876][ T2880] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 511.352562][ T2880] cgroup_subtree_control_write+0xd19/0x1310 [ 511.358540][ T2880] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 511.364521][ T2880] ? __kasan_check_write+0x14/0x20 [ 511.369746][ T2880] ? _copy_from_iter+0x3fb/0xd60 [ 511.374894][ T2880] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 511.381090][ T2880] cgroup_file_write+0x28e/0x590 [ 511.386566][ T2880] ? cgroup_seqfile_stop+0xc0/0xc0 [ 511.391684][ T2880] ? mutex_trylock+0x180/0x180 [ 511.396502][ T2880] ? __kasan_check_write+0x14/0x20 [ 511.401656][ T2880] kernfs_fop_write_iter+0x2d0/0x410 [ 511.406945][ T2880] ? cgroup_seqfile_stop+0xc0/0xc0 [ 511.412087][ T2880] vfs_write+0xc4a/0xf80 [ 511.416431][ T2880] ? slab_free_freelist_hook+0xcc/0x1a0 [ 511.421980][ T2880] ? kernel_write+0x420/0x420 [ 511.426661][ T2880] ? do_sys_openat2+0x397/0x470 [ 511.431509][ T2880] ? __kasan_check_read+0x11/0x20 [ 511.436626][ T2880] ? __fdget_pos+0x27e/0x310 [ 511.441209][ T2880] ksys_write+0x198/0x2c0 [ 511.445544][ T2880] ? __kasan_check_write+0x14/0x20 [ 511.450848][ T2880] ? __ia32_sys_read+0x90/0x90 [ 511.455740][ T2880] ? debug_smp_processor_id+0x17/0x20 [ 511.461118][ T2880] __x64_sys_write+0x7b/0x90 [ 511.465710][ T2880] do_syscall_64+0x34/0x70 [ 511.470238][ T2880] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 511.476131][ T2880] RIP: 0033:0x7f48883727a9 [ 511.480646][ T2880] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 511.500580][ T2880] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 511.509104][ T2880] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 511.517360][ T2880] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 511.525337][ T2880] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 511.533372][ T2880] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 511.541429][ T2880] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000033 [ 511.549604][ T2880] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 511.597393][ T2886] FAULT_INJECTION: forcing a failure. [ 511.597393][ T2886] name failslab, interval 1, probability 0, space 0, times 0 [ 511.610219][ T2886] CPU: 0 PID: 2886 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 511.620871][ T2886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 511.631089][ T2886] Call Trace: [ 511.634375][ T2886] dump_stack_lvl+0x1e2/0x24b [ 511.640688][ T2886] ? bfq_pos_tree_add_move+0x43e/0x43e [ 511.646247][ T2886] ? selinux_kernfs_init_security+0x1a8/0x760 [ 511.652314][ T2886] dump_stack+0x15/0x17 [ 511.656484][ T2886] should_fail+0x3c0/0x510 [ 511.661079][ T2886] ? __kernfs_new_node+0x99/0x6e0 [ 511.666096][ T2886] __should_failslab+0x9f/0xe0 [ 511.670857][ T2886] should_failslab+0x9/0x20 [ 511.675347][ T2886] __kmalloc_track_caller+0x5f/0x350 [ 511.680741][ T2886] kstrdup_const+0x55/0x90 [ 511.685230][ T2886] __kernfs_new_node+0x99/0x6e0 [ 511.690081][ T2886] ? is_module_text_address+0xe1/0x140 [ 511.695543][ T2886] ? kernfs_new_node+0x170/0x170 [ 511.700611][ T2886] ? ptr_to_hashval+0x60/0x60 [ 511.705712][ T2886] ? mutex_lock+0xb2/0x1e0 [ 511.710228][ T2886] ? snprintf+0xd6/0x120 [ 511.714780][ T2886] ? mutex_unlock+0x29/0xf0 [ 511.719301][ T2886] kernfs_new_node+0x97/0x170 [ 511.724046][ T2886] __kernfs_create_file+0x4a/0x270 [ 511.729667][ T2886] cgroup_addrm_files+0xab8/0xfe0 [ 511.734822][ T2886] ? ____kasan_kmalloc+0xdc/0x110 [ 511.740013][ T2886] ? __kasan_kmalloc+0x9/0x10 [ 511.744939][ T2886] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 511.750484][ T2886] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 511.756631][ T2886] ? delete_node+0x759/0x7b0 [ 511.761206][ T2886] ? __kasan_check_read+0x11/0x20 [ 511.766249][ T2886] ? idr_replace+0x1c4/0x230 [ 511.770843][ T2886] ? idr_get_next+0x4b0/0x4b0 [ 511.775515][ T2886] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 511.780548][ T2886] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 511.785757][ T2886] css_populate_dir+0x137/0x370 [ 511.790725][ T2886] cgroup_apply_control_enable+0x8b9/0x12f0 [ 511.796798][ T2886] cgroup_apply_control+0x8e/0x7e0 [ 511.801891][ T2886] ? css_next_child+0x160/0x160 [ 511.806830][ T2886] ? stack_trace_save+0x12d/0x1f0 [ 511.811834][ T2886] ? io_schedule+0x120/0x120 [ 511.816501][ T2886] ? kernfs_fop_write_iter+0x15e/0x410 [ 511.821943][ T2886] ? __kasan_check_write+0x14/0x20 [ 511.827039][ T2886] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 511.832316][ T2886] cgroup_subtree_control_write+0xd19/0x1310 [ 511.839111][ T2886] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 511.846233][ T2886] ? __kasan_check_write+0x14/0x20 [ 511.851570][ T2886] ? _copy_from_iter+0x3fb/0xd60 [ 511.856601][ T2886] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 511.862589][ T2886] cgroup_file_write+0x28e/0x590 [ 511.867528][ T2886] ? cgroup_seqfile_stop+0xc0/0xc0 [ 511.872628][ T2886] ? mutex_trylock+0x180/0x180 [ 511.877559][ T2886] ? __kasan_check_write+0x14/0x20 [ 511.883587][ T2886] kernfs_fop_write_iter+0x2d0/0x410 [ 511.889616][ T2886] ? cgroup_seqfile_stop+0xc0/0xc0 [ 511.894743][ T2886] vfs_write+0xc4a/0xf80 [ 511.898982][ T2886] ? slab_free_freelist_hook+0xcc/0x1a0 [ 511.904735][ T2886] ? kernel_write+0x420/0x420 [ 511.909510][ T2886] ? do_sys_openat2+0x397/0x470 [ 511.914462][ T2886] ? __kasan_check_read+0x11/0x20 [ 511.919708][ T2886] ? __fdget_pos+0x27e/0x310 [ 511.924300][ T2886] ksys_write+0x198/0x2c0 [ 511.928615][ T2886] ? __ia32_sys_read+0x90/0x90 [ 511.933365][ T2886] ? debug_smp_processor_id+0x17/0x20 [ 511.938730][ T2886] __x64_sys_write+0x7b/0x90 [ 511.943341][ T2886] do_syscall_64+0x34/0x70 [ 511.947949][ T2886] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 511.953935][ T2886] RIP: 0033:0x7f48883727a9 [ 511.958344][ T2886] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 511.978521][ T2886] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 511.987034][ T2886] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 511.995365][ T2886] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 512.003418][ T2886] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 512.011568][ T2886] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 512.019618][ T2886] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000034 [ 512.027740][ T2886] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 512.057159][ T2884] FAULT_INJECTION: forcing a failure. [ 512.057159][ T2884] name failslab, interval 1, probability 0, space 0, times 0 [ 512.070275][ T2884] CPU: 1 PID: 2884 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 512.080668][ T2884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 512.090900][ T2884] Call Trace: [ 512.094273][ T2884] dump_stack_lvl+0x1e2/0x24b [ 512.099190][ T2884] ? bfq_pos_tree_add_move+0x43e/0x43e [ 512.104633][ T2884] ? arch_stack_walk+0x106/0x140 [ 512.109549][ T2884] ? do_syscall_64+0x34/0x70 [ 512.114129][ T2884] dump_stack+0x15/0x17 [ 512.118286][ T2884] should_fail+0x3c0/0x510 [ 512.122728][ T2884] ? __kernfs_new_node+0x99/0x6e0 [ 512.127919][ T2884] __should_failslab+0x9f/0xe0 [ 512.132662][ T2884] should_failslab+0x9/0x20 [ 512.137237][ T2884] __kmalloc_track_caller+0x5f/0x350 [ 512.142584][ T2884] kstrdup_const+0x55/0x90 [ 512.147408][ T2884] __kernfs_new_node+0x99/0x6e0 [ 512.152531][ T2884] ? is_module_text_address+0xe1/0x140 [ 512.157984][ T2884] ? kernfs_new_node+0x170/0x170 [ 512.162996][ T2884] ? ptr_to_hashval+0x60/0x60 [ 512.167649][ T2884] ? arch_stack_walk+0xf8/0x140 [ 512.172485][ T2884] ? snprintf+0xd6/0x120 [ 512.176881][ T2884] kernfs_new_node+0x97/0x170 [ 512.181537][ T2884] __kernfs_create_file+0x4a/0x270 [ 512.186623][ T2884] cgroup_addrm_files+0xab8/0xfe0 [ 512.191992][ T2884] ? ____kasan_kmalloc+0xdc/0x110 [ 512.197111][ T2884] ? __kasan_kmalloc+0x9/0x10 [ 512.202232][ T2884] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 512.207777][ T2884] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 512.214292][ T2884] ? delete_node+0x759/0x7b0 [ 512.218893][ T2884] ? __kasan_check_read+0x11/0x20 [ 512.223931][ T2884] ? delete_node+0x759/0x7b0 [ 512.228510][ T2884] ? __kasan_check_write+0x14/0x20 [ 512.233691][ T2884] ? idr_replace+0x1c4/0x230 [ 512.238290][ T2884] ? idr_get_next+0x4b0/0x4b0 [ 512.242980][ T2884] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 512.248162][ T2884] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 512.253338][ T2884] css_populate_dir+0x137/0x370 [ 512.258192][ T2884] cgroup_apply_control_enable+0x8b9/0x12f0 [ 512.264079][ T2884] cgroup_apply_control+0x8e/0x7e0 [ 512.269176][ T2884] ? css_next_child+0x160/0x160 [ 512.274366][ T2884] ? stack_trace_save+0x12d/0x1f0 [ 512.279367][ T2884] ? io_schedule+0x120/0x120 [ 512.283947][ T2884] ? kernfs_fop_write_iter+0x15e/0x410 [ 512.289468][ T2884] ? __kasan_check_write+0x14/0x20 [ 512.294563][ T2884] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 512.300106][ T2884] cgroup_subtree_control_write+0xd19/0x1310 [ 512.306247][ T2884] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 512.312460][ T2884] ? __kasan_check_write+0x14/0x20 [ 512.317547][ T2884] ? _copy_from_iter+0x3fb/0xd60 [ 512.322558][ T2884] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 512.328513][ T2884] cgroup_file_write+0x28e/0x590 [ 512.333425][ T2884] ? cgroup_seqfile_stop+0xc0/0xc0 [ 512.338600][ T2884] ? mutex_trylock+0x180/0x180 [ 512.343634][ T2884] ? __kasan_check_write+0x14/0x20 [ 512.348836][ T2884] kernfs_fop_write_iter+0x2d0/0x410 [ 512.354128][ T2884] ? cgroup_seqfile_stop+0xc0/0xc0 [ 512.359312][ T2884] vfs_write+0xc4a/0xf80 [ 512.363645][ T2884] ? slab_free_freelist_hook+0xcc/0x1a0 [ 512.369283][ T2884] ? kernel_write+0x420/0x420 [ 512.373938][ T2884] ? do_sys_openat2+0x397/0x470 [ 512.378762][ T2884] ? __kasan_check_read+0x11/0x20 [ 512.383762][ T2884] ? __fdget_pos+0x27e/0x310 [ 512.388335][ T2884] ksys_write+0x198/0x2c0 [ 512.392639][ T2884] ? __kasan_check_write+0x14/0x20 [ 512.398174][ T2884] ? __ia32_sys_read+0x90/0x90 [ 512.403102][ T2884] ? debug_smp_processor_id+0x17/0x20 [ 512.408503][ T2884] __x64_sys_write+0x7b/0x90 [ 512.413118][ T2884] do_syscall_64+0x34/0x70 [ 512.417625][ T2884] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 512.423789][ T2884] RIP: 0033:0x7f48883727a9 [ 512.428189][ T2884] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 512.447768][ T2884] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 512.456493][ T2884] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 512.464724][ T2884] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 512.472857][ T2884] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 512.481352][ T2884] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 512.489502][ T2884] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000024 [ 512.497864][ T2884] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 512.527115][ T2883] FAULT_INJECTION: forcing a failure. [ 512.527115][ T2883] name failslab, interval 1, probability 0, space 0, times 0 [ 512.540512][ T2883] CPU: 1 PID: 2883 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 512.551208][ T2883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 512.561250][ T2883] Call Trace: [ 512.564558][ T2883] dump_stack_lvl+0x1e2/0x24b [ 512.569230][ T2883] ? bfq_pos_tree_add_move+0x43e/0x43e [ 512.574889][ T2883] ? selinux_kernfs_init_security+0x1a8/0x760 [ 512.580946][ T2883] dump_stack+0x15/0x17 [ 512.585281][ T2883] should_fail+0x3c0/0x510 [ 512.589690][ T2883] ? __kernfs_new_node+0x99/0x6e0 [ 512.594818][ T2883] __should_failslab+0x9f/0xe0 [ 512.599595][ T2883] should_failslab+0x9/0x20 [ 512.604092][ T2883] __kmalloc_track_caller+0x5f/0x350 [ 512.609456][ T2883] kstrdup_const+0x55/0x90 [ 512.613859][ T2883] __kernfs_new_node+0x99/0x6e0 [ 512.618716][ T2883] ? is_module_text_address+0xe1/0x140 [ 512.624159][ T2883] ? kernfs_new_node+0x170/0x170 [ 512.629084][ T2883] ? ptr_to_hashval+0x60/0x60 [ 512.633744][ T2883] ? mutex_lock+0xb2/0x1e0 [ 512.638137][ T2883] ? snprintf+0xd6/0x120 [ 512.642444][ T2883] ? mutex_unlock+0x29/0xf0 [ 512.646962][ T2883] kernfs_new_node+0x97/0x170 [ 512.651739][ T2883] __kernfs_create_file+0x4a/0x270 [ 512.657103][ T2883] cgroup_addrm_files+0xab8/0xfe0 [ 512.662117][ T2883] ? ____kasan_kmalloc+0xdc/0x110 [ 512.667122][ T2883] ? __kasan_kmalloc+0x9/0x10 [ 512.671799][ T2883] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 512.677345][ T2883] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 512.683915][ T2883] ? delete_node+0x759/0x7b0 [ 512.688584][ T2883] ? __kasan_check_read+0x11/0x20 [ 512.693598][ T2883] ? idr_replace+0x1c4/0x230 [ 512.698166][ T2883] ? idr_get_next+0x4b0/0x4b0 [ 512.703254][ T2883] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 512.708283][ T2883] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 512.713589][ T2883] css_populate_dir+0x137/0x370 [ 512.718548][ T2883] cgroup_apply_control_enable+0x8b9/0x12f0 [ 512.724534][ T2883] cgroup_apply_control+0x8e/0x7e0 [ 512.729802][ T2883] ? css_next_child+0x160/0x160 [ 512.734742][ T2883] ? stack_trace_save+0x12d/0x1f0 [ 512.739848][ T2883] ? io_schedule+0x120/0x120 [ 512.744508][ T2883] ? kernfs_fop_write_iter+0x15e/0x410 [ 512.749967][ T2883] ? __kasan_check_write+0x14/0x20 [ 512.755072][ T2883] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 512.760370][ T2883] cgroup_subtree_control_write+0xd19/0x1310 [ 512.766370][ T2883] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 512.772429][ T2883] ? __kasan_check_write+0x14/0x20 [ 512.777529][ T2883] ? _copy_from_iter+0x3fb/0xd60 [ 512.782643][ T2883] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 512.788795][ T2883] cgroup_file_write+0x28e/0x590 [ 512.793736][ T2883] ? cgroup_seqfile_stop+0xc0/0xc0 [ 512.798848][ T2883] ? mutex_trylock+0x180/0x180 [ 512.803706][ T2883] ? __kasan_check_write+0x14/0x20 [ 512.813781][ T2883] kernfs_fop_write_iter+0x2d0/0x410 [ 512.819407][ T2883] ? cgroup_seqfile_stop+0xc0/0xc0 [ 512.827886][ T2883] vfs_write+0xc4a/0xf80 [ 512.832603][ T2883] ? slab_free_freelist_hook+0xcc/0x1a0 [ 512.839233][ T2883] ? kernel_write+0x420/0x420 [ 512.844462][ T2883] ? do_sys_openat2+0x397/0x470 [ 512.849763][ T2883] ? __kasan_check_read+0x11/0x20 [ 512.854781][ T2883] ? __fdget_pos+0x27e/0x310 [ 512.859799][ T2883] ksys_write+0x198/0x2c0 [ 512.864226][ T2883] ? __ia32_sys_read+0x90/0x90 [ 512.869278][ T2883] ? debug_smp_processor_id+0x17/0x20 [ 512.875125][ T2883] __x64_sys_write+0x7b/0x90 [ 512.881369][ T2883] do_syscall_64+0x34/0x70 [ 512.885872][ T2883] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 512.891755][ T2883] RIP: 0033:0x7f48883727a9 [ 512.896358][ T2883] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 512.916338][ T2883] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 512.924763][ T2883] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 512.932870][ T2883] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 512.941254][ T2883] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 512.949231][ T2883] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 512.957219][ T2883] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002a [ 512.965306][ T2883] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 513.007350][ T2882] FAULT_INJECTION: forcing a failure. [ 513.007350][ T2882] name failslab, interval 1, probability 0, space 0, times 0 [ 513.020153][ T2882] CPU: 1 PID: 2882 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 513.030631][ T2882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 513.040669][ T2882] Call Trace: [ 513.043985][ T2882] dump_stack_lvl+0x1e2/0x24b [ 513.048756][ T2882] ? bfq_pos_tree_add_move+0x43e/0x43e [ 513.054650][ T2882] ? selinux_kernfs_init_security+0x1a8/0x760 [ 513.060795][ T2882] dump_stack+0x15/0x17 [ 513.064935][ T2882] should_fail+0x3c0/0x510 [ 513.069358][ T2882] ? __kernfs_new_node+0x99/0x6e0 [ 513.074358][ T2882] __should_failslab+0x9f/0xe0 [ 513.079107][ T2882] should_failslab+0x9/0x20 [ 513.083607][ T2882] __kmalloc_track_caller+0x5f/0x350 [ 513.088868][ T2882] kstrdup_const+0x55/0x90 [ 513.093262][ T2882] __kernfs_new_node+0x99/0x6e0 [ 513.098449][ T2882] ? is_module_text_address+0xe1/0x140 [ 513.103897][ T2882] ? kernfs_new_node+0x170/0x170 [ 513.108805][ T2882] ? ptr_to_hashval+0x60/0x60 [ 513.113457][ T2882] ? mutex_lock+0xb2/0x1e0 [ 513.117859][ T2882] ? snprintf+0xd6/0x120 [ 513.122165][ T2882] ? mutex_unlock+0x29/0xf0 [ 513.126660][ T2882] kernfs_new_node+0x97/0x170 [ 513.131317][ T2882] __kernfs_create_file+0x4a/0x270 [ 513.136424][ T2882] cgroup_addrm_files+0xab8/0xfe0 [ 513.141433][ T2882] ? ____kasan_kmalloc+0xdc/0x110 [ 513.146518][ T2882] ? __kasan_kmalloc+0x9/0x10 [ 513.151182][ T2882] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 513.156876][ T2882] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 513.163350][ T2882] ? delete_node+0x759/0x7b0 [ 513.167914][ T2882] ? __kasan_check_read+0x11/0x20 [ 513.172935][ T2882] ? idr_replace+0x1c4/0x230 [ 513.177624][ T2882] ? idr_get_next+0x4b0/0x4b0 [ 513.182288][ T2882] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 513.187371][ T2882] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 513.192544][ T2882] css_populate_dir+0x137/0x370 [ 513.197399][ T2882] cgroup_apply_control_enable+0x8b9/0x12f0 [ 513.203376][ T2882] cgroup_apply_control+0x8e/0x7e0 [ 513.208504][ T2882] ? css_next_child+0x160/0x160 [ 513.213347][ T2882] ? stack_trace_save+0x12d/0x1f0 [ 513.218358][ T2882] ? io_schedule+0x120/0x120 [ 513.223135][ T2882] ? kernfs_fop_write_iter+0x15e/0x410 [ 513.228571][ T2882] ? __kasan_check_write+0x14/0x20 [ 513.233742][ T2882] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 513.239090][ T2882] cgroup_subtree_control_write+0xd19/0x1310 [ 513.245111][ T2882] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 513.251191][ T2882] ? __kasan_check_write+0x14/0x20 [ 513.256298][ T2882] ? _copy_from_iter+0x3fb/0xd60 [ 513.261355][ T2882] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 513.267319][ T2882] cgroup_file_write+0x28e/0x590 [ 513.272407][ T2882] ? cgroup_seqfile_stop+0xc0/0xc0 [ 513.277495][ T2882] ? mutex_trylock+0x180/0x180 [ 513.282251][ T2882] ? __kasan_check_write+0x14/0x20 [ 513.287424][ T2882] kernfs_fop_write_iter+0x2d0/0x410 [ 513.292690][ T2882] ? cgroup_seqfile_stop+0xc0/0xc0 [ 513.297789][ T2882] vfs_write+0xc4a/0xf80 [ 513.302183][ T2882] ? slab_free_freelist_hook+0xcc/0x1a0 [ 513.307700][ T2882] ? kernel_write+0x420/0x420 [ 513.312440][ T2882] ? do_sys_openat2+0x397/0x470 [ 513.317267][ T2882] ? __kasan_check_read+0x11/0x20 [ 513.322270][ T2882] ? __fdget_pos+0x27e/0x310 [ 513.326852][ T2882] ksys_write+0x198/0x2c0 [ 513.331245][ T2882] ? __ia32_sys_read+0x90/0x90 [ 513.335988][ T2882] ? debug_smp_processor_id+0x17/0x20 [ 513.341346][ T2882] __x64_sys_write+0x7b/0x90 [ 513.345914][ T2882] do_syscall_64+0x34/0x70 [ 513.350310][ T2882] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 513.356213][ T2882] RIP: 0033:0x7f48883727a9 [ 513.360711][ T2882] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 513.380312][ T2882] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 513.388798][ T2882] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 513.396755][ T2882] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 513.404882][ T2882] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 513.412852][ T2882] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 513.421011][ T2882] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000026 [ 513.429204][ T2882] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 513.477233][ T2885] FAULT_INJECTION: forcing a failure. [ 513.477233][ T2885] name failslab, interval 1, probability 0, space 0, times 0 [ 513.489984][ T2885] CPU: 0 PID: 2885 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 513.500506][ T2885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 513.510817][ T2885] Call Trace: [ 513.514120][ T2885] dump_stack_lvl+0x1e2/0x24b [ 513.518954][ T2885] ? panic+0x7d7/0x7d7 [ 513.523028][ T2885] ? bfq_pos_tree_add_move+0x43e/0x43e [ 513.528485][ T2885] ? selinux_kernfs_init_security+0x1a8/0x760 [ 513.534716][ T2885] dump_stack+0x15/0x17 [ 513.538876][ T2885] should_fail+0x3c0/0x510 [ 513.543552][ T2885] __should_failslab+0x9f/0xe0 [ 513.548735][ T2885] should_failslab+0x9/0x20 [ 513.553234][ T2885] kmem_cache_alloc+0x3f/0x300 [ 513.558154][ T2885] ? __kernfs_new_node+0xdb/0x6e0 [ 513.563429][ T2885] __kernfs_new_node+0xdb/0x6e0 [ 513.568299][ T2885] ? is_module_text_address+0xe1/0x140 [ 513.573740][ T2885] ? kernfs_new_node+0x170/0x170 [ 513.578754][ T2885] ? ptr_to_hashval+0x60/0x60 [ 513.583419][ T2885] ? arch_stack_walk+0xf8/0x140 [ 513.588245][ T2885] ? snprintf+0xd6/0x120 [ 513.592562][ T2885] kernfs_new_node+0x97/0x170 [ 513.597399][ T2885] __kernfs_create_file+0x4a/0x270 [ 513.602599][ T2885] cgroup_addrm_files+0xab8/0xfe0 [ 513.607702][ T2885] ? ____kasan_kmalloc+0xdc/0x110 [ 513.612730][ T2885] ? __kasan_kmalloc+0x9/0x10 [ 513.617430][ T2885] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 513.622978][ T2885] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 513.629121][ T2885] ? delete_node+0x759/0x7b0 [ 513.633717][ T2885] ? __kasan_check_read+0x11/0x20 [ 513.638938][ T2885] ? delete_node+0x759/0x7b0 [ 513.643527][ T2885] ? __kasan_check_write+0x14/0x20 [ 513.648987][ T2885] ? idr_replace+0x1c4/0x230 [ 513.653561][ T2885] ? idr_get_next+0x4b0/0x4b0 [ 513.658255][ T2885] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 513.663466][ T2885] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 513.668961][ T2885] css_populate_dir+0x137/0x370 [ 513.673844][ T2885] cgroup_apply_control_enable+0x8b9/0x12f0 [ 513.680012][ T2885] cgroup_apply_control+0x8e/0x7e0 [ 513.685121][ T2885] ? css_next_child+0x160/0x160 [ 513.690043][ T2885] ? stack_trace_save+0x12d/0x1f0 [ 513.695048][ T2885] ? io_schedule+0x120/0x120 [ 513.699638][ T2885] ? kernfs_fop_write_iter+0x15e/0x410 [ 513.705177][ T2885] ? __kasan_check_write+0x14/0x20 [ 513.710284][ T2885] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 513.715654][ T2885] cgroup_subtree_control_write+0xd19/0x1310 [ 513.721622][ T2885] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 513.727774][ T2885] ? __kasan_check_write+0x14/0x20 [ 513.732889][ T2885] ? _copy_from_iter+0x3fb/0xd60 [ 513.737817][ T2885] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 513.743794][ T2885] cgroup_file_write+0x28e/0x590 [ 513.748727][ T2885] ? cgroup_seqfile_stop+0xc0/0xc0 [ 513.754014][ T2885] ? mutex_trylock+0x180/0x180 [ 513.758983][ T2885] ? __kasan_check_write+0x14/0x20 [ 513.764704][ T2885] kernfs_fop_write_iter+0x2d0/0x410 [ 513.770195][ T2885] ? cgroup_seqfile_stop+0xc0/0xc0 [ 513.775295][ T2885] vfs_write+0xc4a/0xf80 [ 513.779723][ T2885] ? slab_free_freelist_hook+0xcc/0x1a0 [ 513.785426][ T2885] ? kernel_write+0x420/0x420 [ 513.790093][ T2885] ? do_sys_openat2+0x397/0x470 [ 513.795293][ T2885] ? __kasan_check_read+0x11/0x20 [ 513.800301][ T2885] ? __fdget_pos+0x27e/0x310 [ 513.805334][ T2885] ksys_write+0x198/0x2c0 [ 513.809968][ T2885] ? __ia32_sys_read+0x90/0x90 [ 513.814816][ T2885] ? debug_smp_processor_id+0x17/0x20 [ 513.820472][ T2885] __x64_sys_write+0x7b/0x90 [ 513.825045][ T2885] do_syscall_64+0x34/0x70 [ 513.829519][ T2885] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 513.835538][ T2885] RIP: 0033:0x7f48883727a9 [ 513.840040][ T2885] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 513.860552][ T2885] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 513.870819][ T2885] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 513.879139][ T2885] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 513.887307][ T2885] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 513.895381][ T2885] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 513.903652][ T2885] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000023 [ 513.912534][ T2885] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 513.947377][ T2881] FAULT_INJECTION: forcing a failure. [ 513.947377][ T2881] name failslab, interval 1, probability 0, space 0, times 0 [ 513.960994][ T2881] CPU: 1 PID: 2881 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 513.971573][ T2881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 513.981709][ T2881] Call Trace: [ 513.985016][ T2881] dump_stack_lvl+0x1e2/0x24b [ 513.989940][ T2881] ? bfq_pos_tree_add_move+0x43e/0x43e [ 513.998060][ T2881] dump_stack+0x15/0x17 [ 514.002312][ T2881] should_fail+0x3c0/0x510 [ 514.006864][ T2881] __should_failslab+0x9f/0xe0 [ 514.011753][ T2881] should_failslab+0x9/0x20 [ 514.016267][ T2881] kmem_cache_alloc+0x3f/0x300 [ 514.021021][ T2881] ? radix_tree_node_alloc+0x194/0x3c0 [ 514.026463][ T2881] radix_tree_node_alloc+0x194/0x3c0 [ 514.031731][ T2881] ? kernfs_new_node+0x97/0x170 [ 514.036573][ T2881] ? __kernfs_create_file+0x4a/0x270 [ 514.041902][ T2881] ? cgroup_addrm_files+0xab8/0xfe0 [ 514.047206][ T2881] ? cgroup_apply_control_enable+0x8b9/0x12f0 [ 514.053371][ T2881] idr_get_free+0x2d8/0x990 [ 514.057890][ T2881] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 514.064714][ T2881] idr_alloc_cyclic+0x1ef/0x5d0 [ 514.069803][ T2881] ? idr_alloc+0x2f0/0x2f0 [ 514.074453][ T2881] ? __kasan_check_write+0x14/0x20 [ 514.079581][ T2881] ? _raw_spin_lock+0xa3/0x1b0 [ 514.084427][ T2881] ? __radix_tree_preload+0x361/0x3e0 [ 514.089960][ T2881] ? kmem_cache_alloc+0x1a4/0x300 [ 514.095008][ T2881] __kernfs_new_node+0x124/0x6e0 [ 514.099933][ T2881] ? is_module_text_address+0xe1/0x140 [ 514.105459][ T2881] ? kernfs_new_node+0x170/0x170 [ 514.110780][ T2881] ? ptr_to_hashval+0x60/0x60 [ 514.115458][ T2881] ? arch_stack_walk+0xf8/0x140 [ 514.120305][ T2881] ? snprintf+0xd6/0x120 [ 514.124640][ T2881] kernfs_new_node+0x97/0x170 [ 514.129314][ T2881] __kernfs_create_file+0x4a/0x270 [ 514.134597][ T2881] cgroup_addrm_files+0xab8/0xfe0 [ 514.139745][ T2881] ? ____kasan_kmalloc+0xdc/0x110 [ 514.144762][ T2881] ? __kasan_kmalloc+0x9/0x10 [ 514.149586][ T2881] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 514.155291][ T2881] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 514.161544][ T2881] ? delete_node+0x759/0x7b0 [ 514.166281][ T2881] ? __kasan_check_read+0x11/0x20 [ 514.171514][ T2881] ? delete_node+0x759/0x7b0 [ 514.176118][ T2881] ? __kasan_check_write+0x14/0x20 [ 514.181243][ T2881] ? idr_replace+0x1c4/0x230 [ 514.186002][ T2881] ? idr_get_next+0x4b0/0x4b0 [ 514.190693][ T2881] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 514.195793][ T2881] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 514.200997][ T2881] css_populate_dir+0x137/0x370 [ 514.206820][ T2881] cgroup_apply_control_enable+0x8b9/0x12f0 [ 514.213131][ T2881] cgroup_apply_control+0x8e/0x7e0 [ 514.218319][ T2881] ? css_next_child+0x160/0x160 [ 514.223155][ T2881] ? io_schedule+0x120/0x120 [ 514.227729][ T2881] ? kernfs_fop_write_iter+0x15e/0x410 [ 514.233189][ T2881] ? __kasan_check_write+0x14/0x20 [ 514.238394][ T2881] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 514.243810][ T2881] cgroup_subtree_control_write+0xd19/0x1310 [ 514.249792][ T2881] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 514.255767][ T2881] ? __kasan_check_write+0x14/0x20 [ 514.261041][ T2881] ? _copy_from_iter+0x3fb/0xd60 [ 514.266000][ T2881] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 514.272063][ T2881] cgroup_file_write+0x28e/0x590 [ 514.276990][ T2881] ? cgroup_seqfile_stop+0xc0/0xc0 [ 514.282357][ T2881] ? mutex_trylock+0x180/0x180 [ 514.287121][ T2881] ? __kasan_check_write+0x14/0x20 [ 514.292217][ T2881] kernfs_fop_write_iter+0x2d0/0x410 [ 514.297489][ T2881] ? cgroup_seqfile_stop+0xc0/0xc0 [ 514.302624][ T2881] vfs_write+0xc4a/0xf80 [ 514.306952][ T2881] ? kernel_write+0x420/0x420 [ 514.311808][ T2881] ? do_sys_openat2+0x397/0x470 [ 514.316658][ T2881] ? __kasan_check_read+0x11/0x20 [ 514.321692][ T2881] ? __fdget_pos+0x27e/0x310 [ 514.326406][ T2881] ksys_write+0x198/0x2c0 [ 514.331088][ T2881] ? __ia32_sys_read+0x90/0x90 [ 514.336116][ T2881] ? debug_smp_processor_id+0x17/0x20 [ 514.341921][ T2881] __x64_sys_write+0x7b/0x90 [ 514.347925][ T2881] do_syscall_64+0x34/0x70 [ 514.352350][ T2881] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 514.358230][ T2881] RIP: 0033:0x7f48883727a9 [ 514.362642][ T2881] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 514.382584][ T2881] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 514.391093][ T2881] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 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 [ 514.399486][ T2881] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 514.407882][ T2881] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 514.416121][ T2881] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 514.424197][ T2881] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002a [ 514.477548][ T2888] FAULT_INJECTION: forcing a failure. [ 514.477548][ T2888] name failslab, interval 1, probability 0, space 0, times 0 [ 514.491191][ T2888] CPU: 1 PID: 2888 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 514.501775][ T2888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 514.512074][ T2888] Call Trace: [ 514.515775][ T2888] dump_stack_lvl+0x1e2/0x24b [ 514.521088][ T2888] ? panic+0x7d7/0x7d7 [ 514.525221][ T2888] ? bfq_pos_tree_add_move+0x43e/0x43e [ 514.530770][ T2888] ? selinux_kernfs_init_security+0x1a8/0x760 [ 514.536956][ T2888] dump_stack+0x15/0x17 [ 514.541110][ T2888] should_fail+0x3c0/0x510 [ 514.545600][ T2888] __should_failslab+0x9f/0xe0 [ 514.550341][ T2888] should_failslab+0x9/0x20 [ 514.554822][ T2888] kmem_cache_alloc+0x3f/0x300 [ 514.559563][ T2888] ? __kernfs_new_node+0xdb/0x6e0 [ 514.564575][ T2888] __kernfs_new_node+0xdb/0x6e0 [ 514.569492][ T2888] ? is_module_text_address+0xe1/0x140 [ 514.575025][ T2888] ? kernfs_new_node+0x170/0x170 [ 514.579938][ T2888] ? ptr_to_hashval+0x60/0x60 [ 514.584607][ T2888] ? arch_stack_walk+0xf8/0x140 [ 514.589793][ T2888] ? snprintf+0xd6/0x120 [ 514.594010][ T2888] kernfs_new_node+0x97/0x170 [ 514.598684][ T2888] __kernfs_create_file+0x4a/0x270 [ 514.603946][ T2888] cgroup_addrm_files+0xab8/0xfe0 [ 514.608947][ T2888] ? ____kasan_kmalloc+0xdc/0x110 [ 514.614139][ T2888] ? __kasan_kmalloc+0x9/0x10 [ 514.618815][ T2888] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 514.624335][ T2888] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 514.630821][ T2888] ? delete_node+0x759/0x7b0 [ 514.635496][ T2888] ? __kasan_check_read+0x11/0x20 [ 514.640581][ T2888] ? delete_node+0x759/0x7b0 [ 514.645144][ T2888] ? __kasan_check_write+0x14/0x20 [ 514.650243][ T2888] ? idr_replace+0x1c4/0x230 [ 514.654814][ T2888] ? idr_get_next+0x4b0/0x4b0 [ 514.659495][ T2888] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 514.664501][ T2888] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 514.669745][ T2888] css_populate_dir+0x137/0x370 [ 514.674574][ T2888] cgroup_apply_control_enable+0x8b9/0x12f0 [ 514.680450][ T2888] cgroup_apply_control+0x8e/0x7e0 [ 514.685710][ T2888] ? css_next_child+0x160/0x160 [ 514.690582][ T2888] ? stack_trace_save+0x12d/0x1f0 [ 514.695669][ T2888] ? io_schedule+0x120/0x120 [ 514.700235][ T2888] ? kernfs_fop_write_iter+0x15e/0x410 [ 514.705872][ T2888] ? __kasan_check_write+0x14/0x20 [ 514.710985][ T2888] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 514.716341][ T2888] cgroup_subtree_control_write+0xd19/0x1310 [ 514.722459][ T2888] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 514.728441][ T2888] ? __kasan_check_write+0x14/0x20 [ 514.733545][ T2888] ? _copy_from_iter+0x3fb/0xd60 [ 514.738459][ T2888] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 514.744418][ T2888] cgroup_file_write+0x28e/0x590 [ 514.749377][ T2888] ? cgroup_seqfile_stop+0xc0/0xc0 [ 514.754855][ T2888] ? mutex_trylock+0x180/0x180 [ 514.759627][ T2888] ? __kasan_check_write+0x14/0x20 [ 514.764755][ T2888] kernfs_fop_write_iter+0x2d0/0x410 [ 514.770154][ T2888] ? cgroup_seqfile_stop+0xc0/0xc0 [ 514.775257][ T2888] vfs_write+0xc4a/0xf80 [ 514.779486][ T2888] ? slab_free_freelist_hook+0xcc/0x1a0 [ 514.785014][ T2888] ? kernel_write+0x420/0x420 [ 514.789670][ T2888] ? do_sys_openat2+0x397/0x470 [ 514.794582][ T2888] ? __kasan_check_read+0x11/0x20 [ 514.799581][ T2888] ? __fdget_pos+0x27e/0x310 [ 514.804150][ T2888] ksys_write+0x198/0x2c0 [ 514.808455][ T2888] ? __ia32_sys_read+0x90/0x90 [ 514.813199][ T2888] ? debug_smp_processor_id+0x17/0x20 [ 514.818544][ T2888] __x64_sys_write+0x7b/0x90 [ 514.823111][ T2888] do_syscall_64+0x34/0x70 [ 514.827505][ T2888] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 514.833376][ T2888] RIP: 0033:0x7f48883727a9 [ 514.837886][ T2888] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 514.857641][ T2888] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 514.866037][ T2888] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 514.874719][ T2888] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 514.882755][ T2888] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 514.890790][ T2888] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 514.898747][ T2888] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000025 [ 514.906967][ T2888] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 514.957341][ T2887] FAULT_INJECTION: forcing a failure. [ 514.957341][ T2887] name failslab, interval 1, probability 0, space 0, times 0 [ 514.970314][ T2887] CPU: 1 PID: 2887 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 514.980867][ T2887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 514.990913][ T2887] Call Trace: [ 514.994215][ T2887] dump_stack_lvl+0x1e2/0x24b [ 514.999002][ T2887] ? bfq_pos_tree_add_move+0x43e/0x43e [ 515.004461][ T2887] ? selinux_kernfs_init_security+0x1a8/0x760 [ 515.010524][ T2887] dump_stack+0x15/0x17 [ 515.014761][ T2887] should_fail+0x3c0/0x510 [ 515.019185][ T2887] ? __kernfs_new_node+0x99/0x6e0 [ 515.024338][ T2887] __should_failslab+0x9f/0xe0 [ 515.029201][ T2887] should_failslab+0x9/0x20 [ 515.033778][ T2887] __kmalloc_track_caller+0x5f/0x350 [ 515.039100][ T2887] kstrdup_const+0x55/0x90 [ 515.043543][ T2887] __kernfs_new_node+0x99/0x6e0 [ 515.048410][ T2887] ? is_module_text_address+0xe1/0x140 [ 515.054714][ T2887] ? kernfs_new_node+0x170/0x170 [ 515.059652][ T2887] ? ptr_to_hashval+0x60/0x60 [ 515.064349][ T2887] ? mutex_lock+0xb2/0x1e0 [ 515.068857][ T2887] ? snprintf+0xd6/0x120 [ 515.073209][ T2887] ? mutex_unlock+0x29/0xf0 [ 515.077707][ T2887] kernfs_new_node+0x97/0x170 [ 515.082549][ T2887] __kernfs_create_file+0x4a/0x270 [ 515.087643][ T2887] cgroup_addrm_files+0xab8/0xfe0 [ 515.092738][ T2887] ? ____kasan_kmalloc+0xdc/0x110 [ 515.097999][ T2887] ? __kasan_kmalloc+0x9/0x10 [ 515.102749][ T2887] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 515.108293][ T2887] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 515.114650][ T2887] ? delete_node+0x759/0x7b0 [ 515.119597][ T2887] ? __kasan_check_read+0x11/0x20 [ 515.124674][ T2887] ? idr_replace+0x1c4/0x230 [ 515.129263][ T2887] ? idr_get_next+0x4b0/0x4b0 [ 515.133944][ T2887] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 515.139056][ T2887] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 515.144417][ T2887] css_populate_dir+0x137/0x370 [ 515.149348][ T2887] cgroup_apply_control_enable+0x8b9/0x12f0 [ 515.155423][ T2887] cgroup_apply_control+0x8e/0x7e0 [ 515.160549][ T2887] ? css_next_child+0x160/0x160 [ 515.165384][ T2887] ? stack_trace_save+0x12d/0x1f0 [ 515.170728][ T2887] ? io_schedule+0x120/0x120 [ 515.175351][ T2887] ? kernfs_fop_write_iter+0x15e/0x410 [ 515.180822][ T2887] ? __kasan_check_write+0x14/0x20 [ 515.186102][ T2887] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 515.191478][ T2887] cgroup_subtree_control_write+0xd19/0x1310 [ 515.197627][ T2887] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 515.203782][ T2887] ? __kasan_check_write+0x14/0x20 [ 515.208878][ T2887] ? _copy_from_iter+0x3fb/0xd60 [ 515.214123][ T2887] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 515.220211][ T2887] cgroup_file_write+0x28e/0x590 [ 515.225160][ T2887] ? cgroup_seqfile_stop+0xc0/0xc0 [ 515.230274][ T2887] ? mutex_trylock+0x180/0x180 [ 515.235034][ T2887] ? __kasan_check_write+0x14/0x20 [ 515.240135][ T2887] kernfs_fop_write_iter+0x2d0/0x410 [ 515.245499][ T2887] ? cgroup_seqfile_stop+0xc0/0xc0 [ 515.250611][ T2887] vfs_write+0xc4a/0xf80 [ 515.254900][ T2887] ? slab_free_freelist_hook+0xcc/0x1a0 [ 515.260619][ T2887] ? kernel_write+0x420/0x420 [ 515.265401][ T2887] ? do_sys_openat2+0x397/0x470 [ 515.270377][ T2887] ? __kasan_check_read+0x11/0x20 [ 515.275511][ T2887] ? __fdget_pos+0x27e/0x310 [ 515.280093][ T2887] ksys_write+0x198/0x2c0 [ 515.284547][ T2887] ? __ia32_sys_read+0x90/0x90 [ 515.289521][ T2887] ? debug_smp_processor_id+0x17/0x20 [ 515.294886][ T2887] __x64_sys_write+0x7b/0x90 [ 515.299564][ T2887] do_syscall_64+0x34/0x70 [ 515.304103][ T2887] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 515.309988][ T2887] RIP: 0033:0x7f48883727a9 [ 515.314493][ T2887] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 515.334688][ T2887] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 515.343229][ T2887] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 515.351207][ T2887] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 515.359278][ T2887] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 515.367236][ T2887] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 515.375207][ T2887] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000035 [ 515.384276][ T2887] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 515.417137][ T2889] FAULT_INJECTION: forcing a failure. [ 515.417137][ T2889] name failslab, interval 1, probability 0, space 0, times 0 [ 515.430151][ T2889] CPU: 1 PID: 2889 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 515.440543][ T2889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 515.450786][ T2889] Call Trace: [ 515.454179][ T2889] dump_stack_lvl+0x1e2/0x24b [ 515.458862][ T2889] ? bfq_pos_tree_add_move+0x43e/0x43e [ 515.464493][ T2889] ? selinux_kernfs_init_security+0x1a8/0x760 [ 515.470685][ T2889] dump_stack+0x15/0x17 [ 515.475238][ T2889] should_fail+0x3c0/0x510 [ 515.479667][ T2889] ? __kernfs_new_node+0x99/0x6e0 [ 515.484906][ T2889] __should_failslab+0x9f/0xe0 [ 515.489784][ T2889] should_failslab+0x9/0x20 [ 515.494312][ T2889] __kmalloc_track_caller+0x5f/0x350 [ 515.499860][ T2889] kstrdup_const+0x55/0x90 [ 515.504569][ T2889] __kernfs_new_node+0x99/0x6e0 [ 515.509431][ T2889] ? is_module_text_address+0xe1/0x140 [ 515.515077][ T2889] ? kernfs_new_node+0x170/0x170 [ 515.520109][ T2889] ? ptr_to_hashval+0x60/0x60 [ 515.524785][ T2889] ? mutex_lock+0xb2/0x1e0 [ 515.529252][ T2889] ? snprintf+0xd6/0x120 [ 515.533504][ T2889] ? mutex_unlock+0x29/0xf0 [ 515.538000][ T2889] kernfs_new_node+0x97/0x170 [ 515.542659][ T2889] __kernfs_create_file+0x4a/0x270 [ 515.547772][ T2889] cgroup_addrm_files+0xab8/0xfe0 [ 515.552820][ T2889] ? ____kasan_kmalloc+0xdc/0x110 [ 515.558299][ T2889] ? __kasan_kmalloc+0x9/0x10 [ 515.562971][ T2889] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 515.568613][ T2889] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 515.574805][ T2889] ? delete_node+0x759/0x7b0 [ 515.579383][ T2889] ? __kasan_check_read+0x11/0x20 [ 515.584397][ T2889] ? idr_replace+0x1c4/0x230 [ 515.589002][ T2889] ? idr_get_next+0x4b0/0x4b0 [ 515.593666][ T2889] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 515.598673][ T2889] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 515.604113][ T2889] css_populate_dir+0x137/0x370 [ 515.609127][ T2889] cgroup_apply_control_enable+0x8b9/0x12f0 [ 515.615167][ T2889] cgroup_apply_control+0x8e/0x7e0 [ 515.620268][ T2889] ? css_next_child+0x160/0x160 [ 515.625106][ T2889] ? io_schedule+0x120/0x120 [ 515.629770][ T2889] ? kernfs_fop_write_iter+0x15e/0x410 [ 515.635230][ T2889] ? __kasan_check_write+0x14/0x20 [ 515.640327][ T2889] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 515.645599][ T2889] cgroup_subtree_control_write+0xd19/0x1310 [ 515.651589][ T2889] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 515.657799][ T2889] ? __kasan_check_write+0x14/0x20 [ 515.662906][ T2889] ? _copy_from_iter+0x3fb/0xd60 [ 515.668002][ T2889] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 515.674143][ T2889] cgroup_file_write+0x28e/0x590 [ 515.679095][ T2889] ? cgroup_seqfile_stop+0xc0/0xc0 [ 515.684209][ T2889] ? mutex_trylock+0x180/0x180 [ 515.689251][ T2889] ? __kasan_check_write+0x14/0x20 [ 515.694386][ T2889] kernfs_fop_write_iter+0x2d0/0x410 [ 515.699848][ T2889] ? cgroup_seqfile_stop+0xc0/0xc0 [ 515.704954][ T2889] vfs_write+0xc4a/0xf80 [ 515.709209][ T2889] ? kernel_write+0x420/0x420 [ 515.714018][ T2889] ? do_sys_openat2+0x397/0x470 [ 515.719395][ T2889] ? __kasan_check_read+0x11/0x20 [ 515.724526][ T2889] ? __fdget_pos+0x27e/0x310 [ 515.729132][ T2889] ksys_write+0x198/0x2c0 [ 515.733539][ T2889] ? __ia32_sys_read+0x90/0x90 [ 515.738287][ T2889] ? debug_smp_processor_id+0x17/0x20 [ 515.743736][ T2889] __x64_sys_write+0x7b/0x90 [ 515.748509][ T2889] do_syscall_64+0x34/0x70 [ 515.753578][ T2889] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 515.759569][ T2889] RIP: 0033:0x7f48883727a9 [ 515.764105][ T2889] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 515.783922][ T2889] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 515.792481][ T2889] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 515.801406][ T2889] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 515.809789][ T2889] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 515.817932][ T2889] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 515.826109][ T2889] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002b [ 515.834253][ T2889] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 515.887248][ T2893] FAULT_INJECTION: forcing a failure. [ 515.887248][ T2893] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 515.900812][ T2893] CPU: 0 PID: 2893 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 515.911474][ T2893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 515.921658][ T2893] Call Trace: [ 515.925054][ T2893] dump_stack_lvl+0x1e2/0x24b [ 515.929857][ T2893] ? bfq_pos_tree_add_move+0x43e/0x43e [ 515.935308][ T2893] ? stack_trace_save+0x12d/0x1f0 [ 515.940327][ T2893] dump_stack+0x15/0x17 [ 515.944472][ T2893] should_fail+0x3c0/0x510 [ 515.948902][ T2893] should_fail_alloc_page+0x50/0x60 [ 515.954105][ T2893] __alloc_pages_nodemask+0x1c0/0x890 [ 515.959570][ T2893] ? __kasan_check_write+0x14/0x20 [ 515.964705][ T2893] ? delete_node+0x759/0x7b0 [ 515.969384][ T2893] ? mutex_trylock+0x180/0x180 [ 515.974325][ T2893] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 515.979906][ T2893] ? kernfs_xattr_get+0x80/0x90 [ 515.984755][ T2893] ? selinux_kernfs_init_security+0x1a8/0x760 [ 515.990896][ T2893] allocate_slab+0x78/0x540 [ 515.995443][ T2893] ___slab_alloc+0x131/0x2e0 [ 516.000117][ T2893] ? __kernfs_new_node+0xdb/0x6e0 [ 516.005264][ T2893] __slab_alloc+0x63/0xa0 [ 516.009584][ T2893] ? __kernfs_new_node+0xdb/0x6e0 [ 516.014922][ T2893] kmem_cache_alloc+0x1ef/0x300 [ 516.019881][ T2893] ? __kernfs_new_node+0xdb/0x6e0 [ 516.025014][ T2893] __kernfs_new_node+0xdb/0x6e0 [ 516.030047][ T2893] ? is_module_text_address+0xe1/0x140 [ 516.035516][ T2893] ? kernfs_new_node+0x170/0x170 [ 516.040447][ T2893] ? ptr_to_hashval+0x60/0x60 [ 516.045247][ T2893] ? arch_stack_walk+0xf8/0x140 [ 516.050214][ T2893] ? snprintf+0xd6/0x120 [ 516.054470][ T2893] kernfs_new_node+0x97/0x170 [ 516.059149][ T2893] __kernfs_create_file+0x4a/0x270 [ 516.064272][ T2893] cgroup_addrm_files+0xab8/0xfe0 [ 516.069440][ T2893] ? ____kasan_kmalloc+0xdc/0x110 [ 516.074596][ T2893] ? __kasan_kmalloc+0x9/0x10 [ 516.079282][ T2893] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 516.084818][ T2893] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 516.090953][ T2893] ? delete_node+0x759/0x7b0 [ 516.095644][ T2893] ? __kasan_check_read+0x11/0x20 [ 516.100826][ T2893] ? delete_node+0x759/0x7b0 [ 516.105411][ T2893] ? __kasan_check_write+0x14/0x20 [ 516.110759][ T2893] ? idr_replace+0x1c4/0x230 [ 516.115333][ T2893] ? idr_get_next+0x4b0/0x4b0 [ 516.120037][ T2893] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 516.125108][ T2893] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 516.130551][ T2893] css_populate_dir+0x137/0x370 [ 516.135806][ T2893] cgroup_apply_control_enable+0x8b9/0x12f0 [ 516.141696][ T2893] cgroup_apply_control+0x8e/0x7e0 [ 516.146821][ T2893] ? css_next_child+0x160/0x160 [ 516.151796][ T2893] ? stack_trace_save+0x12d/0x1f0 [ 516.157018][ T2893] ? io_schedule+0x120/0x120 [ 516.161702][ T2893] ? kernfs_fop_write_iter+0x15e/0x410 [ 516.167174][ T2893] ? __kasan_check_write+0x14/0x20 [ 516.172361][ T2893] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 516.177748][ T2893] cgroup_subtree_control_write+0xd19/0x1310 [ 516.183811][ T2893] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 516.189784][ T2893] ? __kasan_check_write+0x14/0x20 [ 516.194876][ T2893] ? _copy_from_iter+0x3fb/0xd60 [ 516.199801][ T2893] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 516.205881][ T2893] cgroup_file_write+0x28e/0x590 [ 516.210815][ T2893] ? cgroup_seqfile_stop+0xc0/0xc0 [ 516.216226][ T2893] ? mutex_trylock+0x180/0x180 [ 516.220984][ T2893] ? __kasan_check_write+0x14/0x20 [ 516.226177][ T2893] kernfs_fop_write_iter+0x2d0/0x410 [ 516.231797][ T2893] ? cgroup_seqfile_stop+0xc0/0xc0 [ 516.237310][ T2893] vfs_write+0xc4a/0xf80 [ 516.241656][ T2893] ? slab_free_freelist_hook+0xcc/0x1a0 [ 516.247378][ T2893] ? kernel_write+0x420/0x420 [ 516.252313][ T2893] ? do_sys_openat2+0x397/0x470 [ 516.257352][ T2893] ? __kasan_check_read+0x11/0x20 [ 516.262757][ T2893] ? __fdget_pos+0x27e/0x310 [ 516.267819][ T2893] ksys_write+0x198/0x2c0 [ 516.272530][ T2893] ? __ia32_sys_read+0x90/0x90 [ 516.277373][ T2893] ? debug_smp_processor_id+0x17/0x20 [ 516.282750][ T2893] __x64_sys_write+0x7b/0x90 [ 516.287413][ T2893] do_syscall_64+0x34/0x70 [ 516.291833][ T2893] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 516.297738][ T2893] RIP: 0033:0x7f48883727a9 [ 516.302150][ T2893] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 516.322859][ T2893] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 516.331347][ T2893] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 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 [ 516.339397][ T2893] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 516.347364][ T2893] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 516.355622][ T2893] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 516.363798][ T2893] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000025 [ 516.417236][ T2895] FAULT_INJECTION: forcing a failure. [ 516.417236][ T2895] name failslab, interval 1, probability 0, space 0, times 0 [ 516.430108][ T2895] CPU: 1 PID: 2895 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 516.440813][ T2895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 516.451147][ T2895] Call Trace: [ 516.454466][ T2895] dump_stack_lvl+0x1e2/0x24b [ 516.459133][ T2895] ? bfq_pos_tree_add_move+0x43e/0x43e [ 516.464863][ T2895] ? selinux_kernfs_init_security+0x1a8/0x760 [ 516.471135][ T2895] dump_stack+0x15/0x17 [ 516.475292][ T2895] should_fail+0x3c0/0x510 [ 516.479821][ T2895] ? __kernfs_new_node+0x99/0x6e0 [ 516.485262][ T2895] __should_failslab+0x9f/0xe0 [ 516.490034][ T2895] should_failslab+0x9/0x20 [ 516.494812][ T2895] __kmalloc_track_caller+0x5f/0x350 [ 516.500547][ T2895] kstrdup_const+0x55/0x90 [ 516.505285][ T2895] __kernfs_new_node+0x99/0x6e0 [ 516.510341][ T2895] ? is_module_text_address+0xe1/0x140 [ 516.516320][ T2895] ? kernfs_new_node+0x170/0x170 [ 516.521752][ T2895] ? ptr_to_hashval+0x60/0x60 [ 516.526770][ T2895] ? mutex_lock+0xb2/0x1e0 [ 516.531195][ T2895] ? snprintf+0xd6/0x120 [ 516.535525][ T2895] ? mutex_unlock+0x29/0xf0 [ 516.540124][ T2895] kernfs_new_node+0x97/0x170 [ 516.545070][ T2895] __kernfs_create_file+0x4a/0x270 [ 516.550373][ T2895] cgroup_addrm_files+0xab8/0xfe0 [ 516.555581][ T2895] ? ____kasan_kmalloc+0xdc/0x110 [ 516.560747][ T2895] ? __kasan_kmalloc+0x9/0x10 [ 516.565606][ T2895] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 516.571144][ T2895] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 516.577469][ T2895] ? delete_node+0x759/0x7b0 [ 516.582146][ T2895] ? __kasan_check_read+0x11/0x20 [ 516.587159][ T2895] ? idr_replace+0x1c4/0x230 [ 516.591811][ T2895] ? idr_get_next+0x4b0/0x4b0 [ 516.596574][ T2895] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 516.601596][ T2895] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 516.606784][ T2895] css_populate_dir+0x137/0x370 [ 516.611760][ T2895] cgroup_apply_control_enable+0x8b9/0x12f0 [ 516.617888][ T2895] cgroup_apply_control+0x8e/0x7e0 [ 516.623174][ T2895] ? css_next_child+0x160/0x160 [ 516.628099][ T2895] ? stack_trace_save+0x12d/0x1f0 [ 516.633338][ T2895] ? io_schedule+0x120/0x120 [ 516.638241][ T2895] ? kernfs_fop_write_iter+0x15e/0x410 [ 516.643700][ T2895] ? __kasan_check_write+0x14/0x20 [ 516.649006][ T2895] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 516.654281][ T2895] cgroup_subtree_control_write+0xd19/0x1310 [ 516.660430][ T2895] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 516.666399][ T2895] ? __kasan_check_write+0x14/0x20 [ 516.671769][ T2895] ? _copy_from_iter+0x3fb/0xd60 [ 516.676731][ T2895] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 516.682737][ T2895] cgroup_file_write+0x28e/0x590 [ 516.687854][ T2895] ? cgroup_seqfile_stop+0xc0/0xc0 [ 516.692982][ T2895] ? mutex_trylock+0x180/0x180 [ 516.697895][ T2895] ? __kasan_check_write+0x14/0x20 [ 516.703111][ T2895] kernfs_fop_write_iter+0x2d0/0x410 [ 516.708475][ T2895] ? cgroup_seqfile_stop+0xc0/0xc0 [ 516.713917][ T2895] vfs_write+0xc4a/0xf80 [ 516.718146][ T2895] ? slab_free_freelist_hook+0xcc/0x1a0 [ 516.723781][ T2895] ? kernel_write+0x420/0x420 [ 516.728537][ T2895] ? do_sys_openat2+0x397/0x470 [ 516.733412][ T2895] ? __kasan_check_read+0x11/0x20 [ 516.738532][ T2895] ? __fdget_pos+0x27e/0x310 [ 516.743128][ T2895] ksys_write+0x198/0x2c0 [ 516.747805][ T2895] ? __ia32_sys_read+0x90/0x90 [ 516.752566][ T2895] ? debug_smp_processor_id+0x17/0x20 [ 516.758016][ T2895] __x64_sys_write+0x7b/0x90 [ 516.762597][ T2895] do_syscall_64+0x34/0x70 [ 516.767192][ T2895] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 516.773155][ T2895] RIP: 0033:0x7f48883727a9 [ 516.777555][ T2895] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 516.797342][ T2895] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 516.805744][ T2895] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 516.813727][ T2895] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 516.822072][ T2895] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 516.830322][ T2895] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 516.838658][ T2895] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000036 [ 516.847244][ T2895] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 516.887413][ T2897] FAULT_INJECTION: forcing a failure. [ 516.887413][ T2897] name failslab, interval 1, probability 0, space 0, times 0 [ 516.900091][ T2897] CPU: 0 PID: 2897 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 516.910691][ T2897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 516.920740][ T2897] Call Trace: [ 516.924040][ T2897] dump_stack_lvl+0x1e2/0x24b [ 516.928712][ T2897] ? bfq_pos_tree_add_move+0x43e/0x43e [ 516.934158][ T2897] ? selinux_kernfs_init_security+0x1a8/0x760 [ 516.940206][ T2897] dump_stack+0x15/0x17 [ 516.944345][ T2897] should_fail+0x3c0/0x510 [ 516.949011][ T2897] ? __kernfs_new_node+0x99/0x6e0 [ 516.954115][ T2897] __should_failslab+0x9f/0xe0 [ 516.958873][ T2897] should_failslab+0x9/0x20 [ 516.963362][ T2897] __kmalloc_track_caller+0x5f/0x350 [ 516.968630][ T2897] kstrdup_const+0x55/0x90 [ 516.973027][ T2897] __kernfs_new_node+0x99/0x6e0 [ 516.977887][ T2897] ? is_module_text_address+0xe1/0x140 [ 516.983345][ T2897] ? kernfs_new_node+0x170/0x170 [ 516.988289][ T2897] ? ptr_to_hashval+0x60/0x60 [ 516.993137][ T2897] ? mutex_lock+0xb2/0x1e0 [ 516.997643][ T2897] ? snprintf+0xd6/0x120 [ 517.002020][ T2897] ? mutex_unlock+0x29/0xf0 [ 517.006560][ T2897] kernfs_new_node+0x97/0x170 [ 517.011293][ T2897] __kernfs_create_file+0x4a/0x270 [ 517.016437][ T2897] cgroup_addrm_files+0xab8/0xfe0 [ 517.021634][ T2897] ? ____kasan_kmalloc+0xdc/0x110 [ 517.026653][ T2897] ? __kasan_kmalloc+0x9/0x10 [ 517.031314][ T2897] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 517.036858][ T2897] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 517.043094][ T2897] ? delete_node+0x759/0x7b0 [ 517.047877][ T2897] ? __kasan_check_read+0x11/0x20 [ 517.052970][ T2897] ? idr_replace+0x1c4/0x230 [ 517.057562][ T2897] ? idr_get_next+0x4b0/0x4b0 [ 517.062328][ T2897] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 517.067344][ T2897] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 517.072556][ T2897] css_populate_dir+0x137/0x370 [ 517.077403][ T2897] cgroup_apply_control_enable+0x8b9/0x12f0 [ 517.083404][ T2897] cgroup_apply_control+0x8e/0x7e0 [ 517.088507][ T2897] ? css_next_child+0x160/0x160 [ 517.093344][ T2897] ? stack_trace_save+0x12d/0x1f0 [ 517.098349][ T2897] ? io_schedule+0x120/0x120 [ 517.102940][ T2897] ? kernfs_fop_write_iter+0x15e/0x410 [ 517.108400][ T2897] ? __kasan_check_write+0x14/0x20 [ 517.113509][ T2897] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 517.118781][ T2897] cgroup_subtree_control_write+0xd19/0x1310 [ 517.124750][ T2897] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 517.130746][ T2897] ? __kasan_check_write+0x14/0x20 [ 517.135980][ T2897] ? _copy_from_iter+0x3fb/0xd60 [ 517.140917][ T2897] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 517.146898][ T2897] cgroup_file_write+0x28e/0x590 [ 517.151973][ T2897] ? cgroup_seqfile_stop+0xc0/0xc0 [ 517.157253][ T2897] ? mutex_trylock+0x180/0x180 [ 517.162021][ T2897] ? __kasan_check_write+0x14/0x20 [ 517.167125][ T2897] kernfs_fop_write_iter+0x2d0/0x410 [ 517.172405][ T2897] ? cgroup_seqfile_stop+0xc0/0xc0 [ 517.177519][ T2897] vfs_write+0xc4a/0xf80 [ 517.181765][ T2897] ? slab_free_freelist_hook+0xcc/0x1a0 [ 517.187338][ T2897] ? kernel_write+0x420/0x420 [ 517.192014][ T2897] ? do_sys_openat2+0x397/0x470 [ 517.197047][ T2897] ? __kasan_check_read+0x11/0x20 [ 517.202364][ T2897] ? __fdget_pos+0x27e/0x310 [ 517.207048][ T2897] ksys_write+0x198/0x2c0 [ 517.211518][ T2897] ? __kasan_check_write+0x14/0x20 [ 517.216725][ T2897] ? __ia32_sys_read+0x90/0x90 [ 517.221923][ T2897] ? debug_smp_processor_id+0x17/0x20 [ 517.229064][ T2897] __x64_sys_write+0x7b/0x90 [ 517.233783][ T2897] do_syscall_64+0x34/0x70 [ 517.238187][ T2897] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 517.244080][ T2897] RIP: 0033:0x7f48883727a9 [ 517.248599][ T2897] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 517.268557][ T2897] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 517.276966][ T2897] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 517.285271][ T2897] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 517.293225][ T2897] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 517.301181][ T2897] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 517.309395][ T2897] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000028 [ 517.317890][ T2897] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 517.347269][ T2898] FAULT_INJECTION: forcing a failure. [ 517.347269][ T2898] name failslab, interval 1, probability 0, space 0, times 0 [ 517.360122][ T2898] CPU: 0 PID: 2898 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 517.370650][ T2898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 517.380940][ T2898] Call Trace: [ 517.384259][ T2898] dump_stack_lvl+0x1e2/0x24b [ 517.389010][ T2898] ? panic+0x7d7/0x7d7 [ 517.393061][ T2898] ? bfq_pos_tree_add_move+0x43e/0x43e [ 517.398506][ T2898] ? selinux_kernfs_init_security+0x1a8/0x760 [ 517.404581][ T2898] dump_stack+0x15/0x17 [ 517.408733][ T2898] should_fail+0x3c0/0x510 [ 517.413125][ T2898] __should_failslab+0x9f/0xe0 [ 517.417874][ T2898] should_failslab+0x9/0x20 [ 517.422353][ T2898] kmem_cache_alloc+0x3f/0x300 [ 517.427092][ T2898] ? __kernfs_new_node+0xdb/0x6e0 [ 517.432090][ T2898] __kernfs_new_node+0xdb/0x6e0 [ 517.436918][ T2898] ? is_module_text_address+0xe1/0x140 [ 517.442382][ T2898] ? kernfs_new_node+0x170/0x170 [ 517.447318][ T2898] ? ptr_to_hashval+0x60/0x60 [ 517.451989][ T2898] ? arch_stack_walk+0xf8/0x140 [ 517.456945][ T2898] ? snprintf+0xd6/0x120 [ 517.461168][ T2898] kernfs_new_node+0x97/0x170 [ 517.465823][ T2898] __kernfs_create_file+0x4a/0x270 [ 517.471020][ T2898] cgroup_addrm_files+0xab8/0xfe0 [ 517.476107][ T2898] ? ____kasan_kmalloc+0xdc/0x110 [ 517.481111][ T2898] ? __kasan_kmalloc+0x9/0x10 [ 517.485851][ T2898] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 517.491376][ T2898] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 517.497503][ T2898] ? kvm_sched_clock_read+0x18/0x40 [ 517.502682][ T2898] ? sched_clock+0x3a/0x40 [ 517.507267][ T2898] ? sched_clock_cpu+0x1b/0x3b0 [ 517.513087][ T2898] ? sched_clock+0x3a/0x40 [ 517.517483][ T2898] ? debug_smp_processor_id+0x17/0x20 [ 517.523115][ T2898] ? __irq_exit_rcu+0x41/0x150 [ 517.527896][ T2898] css_populate_dir+0x137/0x370 [ 517.532870][ T2898] cgroup_apply_control_enable+0x8b9/0x12f0 [ 517.538842][ T2898] cgroup_apply_control+0x8e/0x7e0 [ 517.544301][ T2898] ? css_next_child+0x160/0x160 [ 517.549278][ T2898] ? stack_trace_save+0x12d/0x1f0 [ 517.554387][ T2898] ? io_schedule+0x120/0x120 [ 517.558995][ T2898] ? kernfs_fop_write_iter+0x15e/0x410 [ 517.564461][ T2898] ? __kasan_check_write+0x14/0x20 [ 517.569749][ T2898] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 517.575166][ T2898] cgroup_subtree_control_write+0xd19/0x1310 [ 517.581235][ T2898] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 517.587450][ T2898] ? __kasan_check_write+0x14/0x20 [ 517.592537][ T2898] ? _copy_from_iter+0x3fb/0xd60 [ 517.597454][ T2898] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 517.603409][ T2898] cgroup_file_write+0x28e/0x590 [ 517.608326][ T2898] ? cgroup_seqfile_stop+0xc0/0xc0 [ 517.613507][ T2898] ? mutex_trylock+0x180/0x180 [ 517.618264][ T2898] ? __kasan_check_write+0x14/0x20 [ 517.623462][ T2898] kernfs_fop_write_iter+0x2d0/0x410 [ 517.628726][ T2898] ? cgroup_seqfile_stop+0xc0/0xc0 [ 517.634103][ T2898] vfs_write+0xc4a/0xf80 [ 517.638514][ T2898] ? slab_free_freelist_hook+0xcc/0x1a0 [ 517.644065][ T2898] ? kernel_write+0x420/0x420 [ 517.648722][ T2898] ? do_sys_openat2+0x397/0x470 [ 517.653637][ T2898] ? __kasan_check_read+0x11/0x20 [ 517.658740][ T2898] ? __fdget_pos+0x27e/0x310 [ 517.663323][ T2898] ksys_write+0x198/0x2c0 [ 517.667646][ T2898] ? __ia32_sys_read+0x90/0x90 [ 517.672393][ T2898] ? debug_smp_processor_id+0x17/0x20 [ 517.677846][ T2898] __x64_sys_write+0x7b/0x90 [ 517.682412][ T2898] do_syscall_64+0x34/0x70 [ 517.686902][ T2898] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 517.692851][ T2898] RIP: 0033:0x7f48883727a9 [ 517.697604][ T2898] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 517.717385][ T2898] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 517.725874][ T2898] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 517.733822][ T2898] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 517.741892][ T2898] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 517.750132][ T2898] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 517.758089][ T2898] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000026 [ 517.766359][ T2898] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 517.807092][ T2900] FAULT_INJECTION: forcing a failure. [ 517.807092][ T2900] name failslab, interval 1, probability 0, space 0, times 0 [ 517.819913][ T2900] CPU: 0 PID: 2900 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 517.830399][ T2900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 517.840591][ T2900] Call Trace: [ 517.843874][ T2900] dump_stack_lvl+0x1e2/0x24b [ 517.848534][ T2900] ? panic+0x7d7/0x7d7 [ 517.852591][ T2900] ? bfq_pos_tree_add_move+0x43e/0x43e [ 517.858030][ T2900] ? selinux_kernfs_init_security+0x1a8/0x760 [ 517.864084][ T2900] dump_stack+0x15/0x17 [ 517.868308][ T2900] should_fail+0x3c0/0x510 [ 517.872705][ T2900] __should_failslab+0x9f/0xe0 [ 517.877449][ T2900] should_failslab+0x9/0x20 [ 517.881944][ T2900] kmem_cache_alloc+0x3f/0x300 [ 517.886686][ T2900] ? __kernfs_new_node+0xdb/0x6e0 [ 517.891700][ T2900] __kernfs_new_node+0xdb/0x6e0 [ 517.896644][ T2900] ? is_module_text_address+0xe1/0x140 [ 517.902101][ T2900] ? kernfs_new_node+0x170/0x170 [ 517.907040][ T2900] ? ptr_to_hashval+0x60/0x60 [ 517.911699][ T2900] ? arch_stack_walk+0xf8/0x140 [ 517.916790][ T2900] ? snprintf+0xd6/0x120 [ 517.921149][ T2900] kernfs_new_node+0x97/0x170 [ 517.925935][ T2900] __kernfs_create_file+0x4a/0x270 [ 517.931395][ T2900] cgroup_addrm_files+0xab8/0xfe0 [ 517.936414][ T2900] ? ____kasan_kmalloc+0xdc/0x110 [ 517.941518][ T2900] ? __kasan_kmalloc+0x9/0x10 [ 517.946175][ T2900] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 517.951891][ T2900] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 517.958161][ T2900] ? delete_node+0x759/0x7b0 [ 517.962821][ T2900] ? __kasan_check_read+0x11/0x20 [ 517.967852][ T2900] ? delete_node+0x759/0x7b0 [ 517.972530][ T2900] ? __kasan_check_write+0x14/0x20 [ 517.977628][ T2900] ? idr_replace+0x1c4/0x230 [ 517.982209][ T2900] ? idr_get_next+0x4b0/0x4b0 [ 517.986873][ T2900] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 517.991879][ T2900] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 517.997059][ T2900] css_populate_dir+0x137/0x370 [ 518.001926][ T2900] cgroup_apply_control_enable+0x8b9/0x12f0 [ 518.007802][ T2900] cgroup_apply_control+0x8e/0x7e0 [ 518.012914][ T2900] ? css_next_child+0x160/0x160 [ 518.017760][ T2900] ? stack_trace_save+0x12d/0x1f0 [ 518.022772][ T2900] ? io_schedule+0x120/0x120 [ 518.027361][ T2900] ? kernfs_fop_write_iter+0x15e/0x410 [ 518.033130][ T2900] ? __kasan_check_write+0x14/0x20 [ 518.038421][ T2900] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 518.043979][ T2900] cgroup_subtree_control_write+0xd19/0x1310 [ 518.049959][ T2900] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 518.055954][ T2900] ? __kasan_check_write+0x14/0x20 [ 518.061067][ T2900] ? _copy_from_iter+0x3fb/0xd60 [ 518.066001][ T2900] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 518.072020][ T2900] cgroup_file_write+0x28e/0x590 [ 518.076969][ T2900] ? cgroup_seqfile_stop+0xc0/0xc0 [ 518.082072][ T2900] ? mutex_trylock+0x180/0x180 [ 518.086826][ T2900] ? __kasan_check_write+0x14/0x20 [ 518.092098][ T2900] kernfs_fop_write_iter+0x2d0/0x410 [ 518.097375][ T2900] ? cgroup_seqfile_stop+0xc0/0xc0 [ 518.102488][ T2900] vfs_write+0xc4a/0xf80 [ 518.106737][ T2900] ? slab_free_freelist_hook+0xcc/0x1a0 [ 518.112292][ T2900] ? kernel_write+0x420/0x420 [ 518.116955][ T2900] ? do_sys_openat2+0x397/0x470 [ 518.121805][ T2900] ? __kasan_check_read+0x11/0x20 [ 518.126823][ T2900] ? __fdget_pos+0x27e/0x310 [ 518.131411][ T2900] ksys_write+0x198/0x2c0 [ 518.135810][ T2900] ? __ia32_sys_read+0x90/0x90 [ 518.140580][ T2900] ? debug_smp_processor_id+0x17/0x20 [ 518.146024][ T2900] __x64_sys_write+0x7b/0x90 [ 518.150707][ T2900] do_syscall_64+0x34/0x70 [ 518.155110][ T2900] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 518.160988][ T2900] RIP: 0033:0x7f48883727a9 [ 518.165398][ T2900] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 518.185005][ T2900] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 518.193613][ T2900] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 518.201598][ T2900] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 518.209595][ T2900] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 518.217604][ T2900] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 518.225573][ T2900] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000029 [ 518.233714][ T2900] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 518.277285][ T2894] FAULT_INJECTION: forcing a failure. [ 518.277285][ T2894] name failslab, interval 1, probability 0, space 0, times 0 [ 518.290302][ T2894] CPU: 1 PID: 2894 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 518.301150][ T2894] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 518.311299][ T2894] Call Trace: [ 518.314611][ T2894] dump_stack_lvl+0x1e2/0x24b [ 518.319528][ T2894] ? bfq_pos_tree_add_move+0x43e/0x43e [ 518.325074][ T2894] ? selinux_kernfs_init_security+0x1a8/0x760 [ 518.331140][ T2894] dump_stack+0x15/0x17 [ 518.335395][ T2894] should_fail+0x3c0/0x510 [ 518.339995][ T2894] ? __kernfs_new_node+0x99/0x6e0 [ 518.345276][ T2894] __should_failslab+0x9f/0xe0 [ 518.350049][ T2894] should_failslab+0x9/0x20 [ 518.354545][ T2894] __kmalloc_track_caller+0x5f/0x350 [ 518.359844][ T2894] kstrdup_const+0x55/0x90 [ 518.364679][ T2894] __kernfs_new_node+0x99/0x6e0 [ 518.369536][ T2894] ? is_module_text_address+0xe1/0x140 [ 518.375246][ T2894] ? kernfs_new_node+0x170/0x170 [ 518.380254][ T2894] ? ptr_to_hashval+0x60/0x60 [ 518.384911][ T2894] ? mutex_lock+0xb2/0x1e0 [ 518.389558][ T2894] ? snprintf+0xd6/0x120 [ 518.393795][ T2894] ? mutex_unlock+0x29/0xf0 [ 518.398279][ T2894] kernfs_new_node+0x97/0x170 [ 518.402977][ T2894] __kernfs_create_file+0x4a/0x270 [ 518.408077][ T2894] cgroup_addrm_files+0xab8/0xfe0 [ 518.413086][ T2894] ? ____kasan_kmalloc+0xdc/0x110 [ 518.418105][ T2894] ? __kasan_kmalloc+0x9/0x10 [ 518.422770][ T2894] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 518.428579][ T2894] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 518.434853][ T2894] ? delete_node+0x759/0x7b0 [ 518.439523][ T2894] ? __kasan_check_read+0x11/0x20 [ 518.444634][ T2894] ? idr_replace+0x1c4/0x230 [ 518.449420][ T2894] ? idr_get_next+0x4b0/0x4b0 [ 518.454655][ T2894] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 518.460191][ T2894] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 518.465536][ T2894] css_populate_dir+0x137/0x370 [ 518.470835][ T2894] cgroup_apply_control_enable+0x8b9/0x12f0 [ 518.477085][ T2894] cgroup_apply_control+0x8e/0x7e0 [ 518.482757][ T2894] ? css_next_child+0x160/0x160 [ 518.487698][ T2894] ? stack_trace_save+0x12d/0x1f0 [ 518.492895][ T2894] ? io_schedule+0x120/0x120 [ 518.498492][ T2894] ? kernfs_fop_write_iter+0x15e/0x410 [ 518.504139][ T2894] ? __kasan_check_write+0x14/0x20 [ 518.509268][ T2894] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 518.515067][ T2894] cgroup_subtree_control_write+0xd19/0x1310 [ 518.521148][ T2894] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 518.527300][ T2894] ? __kasan_check_write+0x14/0x20 [ 518.532647][ T2894] ? _copy_from_iter+0x3fb/0xd60 [ 518.538981][ T2894] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 518.545230][ T2894] cgroup_file_write+0x28e/0x590 [ 518.550276][ T2894] ? cgroup_seqfile_stop+0xc0/0xc0 [ 518.555740][ T2894] ? mutex_trylock+0x180/0x180 [ 518.560620][ T2894] ? __kasan_check_write+0x14/0x20 [ 518.565927][ T2894] kernfs_fop_write_iter+0x2d0/0x410 [ 518.571228][ T2894] ? cgroup_seqfile_stop+0xc0/0xc0 [ 518.576460][ T2894] vfs_write+0xc4a/0xf80 [ 518.580696][ T2894] ? slab_free_freelist_hook+0xcc/0x1a0 [ 518.586325][ T2894] ? kernel_write+0x420/0x420 [ 518.591087][ T2894] ? do_sys_openat2+0x397/0x470 [ 518.596220][ T2894] ? __kasan_check_read+0x11/0x20 [ 518.601518][ T2894] ? __fdget_pos+0x27e/0x310 [ 518.606373][ T2894] ksys_write+0x198/0x2c0 [ 518.610871][ T2894] ? __ia32_sys_read+0x90/0x90 [ 518.615696][ T2894] ? debug_smp_processor_id+0x17/0x20 [ 518.621070][ T2894] __x64_sys_write+0x7b/0x90 [ 518.626109][ T2894] do_syscall_64+0x34/0x70 [ 518.630536][ T2894] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 518.636511][ T2894] RIP: 0033:0x7f48883727a9 [ 518.640922][ T2894] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 518.660648][ T2894] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 518.669068][ T2894] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 518.677031][ T2894] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 518.685097][ T2894] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 518.693354][ T2894] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 518.701499][ T2894] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000026 [ 518.709637][ T2894] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 518.747288][ T2892] FAULT_INJECTION: forcing a failure. [ 518.747288][ T2892] name failslab, interval 1, probability 0, space 0, times 0 [ 518.759967][ T2892] CPU: 1 PID: 2892 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 518.770382][ T2892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 518.780858][ T2892] Call Trace: [ 518.784142][ T2892] dump_stack_lvl+0x1e2/0x24b [ 518.788998][ T2892] ? bfq_pos_tree_add_move+0x43e/0x43e [ 518.794463][ T2892] ? selinux_kernfs_init_security+0x1a8/0x760 [ 518.800656][ T2892] dump_stack+0x15/0x17 [ 518.804934][ T2892] should_fail+0x3c0/0x510 [ 518.809355][ T2892] ? __kernfs_new_node+0x99/0x6e0 [ 518.814422][ T2892] __should_failslab+0x9f/0xe0 [ 518.819358][ T2892] should_failslab+0x9/0x20 [ 518.823853][ T2892] __kmalloc_track_caller+0x5f/0x350 [ 518.829118][ T2892] kstrdup_const+0x55/0x90 [ 518.833515][ T2892] __kernfs_new_node+0x99/0x6e0 [ 518.838393][ T2892] ? is_module_text_address+0xe1/0x140 [ 518.843838][ T2892] ? kernfs_new_node+0x170/0x170 [ 518.848815][ T2892] ? ptr_to_hashval+0x60/0x60 [ 518.853594][ T2892] ? mutex_lock+0xb2/0x1e0 [ 518.858022][ T2892] ? snprintf+0xd6/0x120 [ 518.862344][ T2892] ? mutex_unlock+0x29/0xf0 [ 518.866836][ T2892] kernfs_new_node+0x97/0x170 [ 518.871506][ T2892] __kernfs_create_file+0x4a/0x270 [ 518.876778][ T2892] cgroup_addrm_files+0xab8/0xfe0 [ 518.881900][ T2892] ? ____kasan_kmalloc+0xdc/0x110 [ 518.886927][ T2892] ? __kasan_kmalloc+0x9/0x10 [ 518.891678][ T2892] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 518.897239][ T2892] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 518.903391][ T2892] ? delete_node+0x759/0x7b0 [ 518.908082][ T2892] ? __kasan_check_read+0x11/0x20 [ 518.913203][ T2892] ? idr_replace+0x1c4/0x230 [ 518.917790][ T2892] ? idr_get_next+0x4b0/0x4b0 [ 518.922470][ T2892] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 518.927671][ T2892] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 518.932874][ T2892] css_populate_dir+0x137/0x370 [ 518.937708][ T2892] cgroup_apply_control_enable+0x8b9/0x12f0 [ 518.943789][ T2892] cgroup_apply_control+0x8e/0x7e0 [ 518.949028][ T2892] ? css_next_child+0x160/0x160 [ 518.953883][ T2892] ? stack_trace_save+0x12d/0x1f0 [ 518.958990][ T2892] ? io_schedule+0x120/0x120 [ 518.963930][ T2892] ? kernfs_fop_write_iter+0x15e/0x410 [ 518.969469][ T2892] ? __kasan_check_write+0x14/0x20 [ 518.974562][ T2892] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 518.979836][ T2892] cgroup_subtree_control_write+0xd19/0x1310 [ 518.985797][ T2892] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 518.991777][ T2892] ? __kasan_check_write+0x14/0x20 [ 518.996957][ T2892] ? _copy_from_iter+0x3fb/0xd60 [ 519.001880][ T2892] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 519.007937][ T2892] cgroup_file_write+0x28e/0x590 [ 519.012873][ T2892] ? cgroup_seqfile_stop+0xc0/0xc0 [ 519.017982][ T2892] ? mutex_trylock+0x180/0x180 [ 519.022739][ T2892] ? __kasan_check_write+0x14/0x20 [ 519.027846][ T2892] kernfs_fop_write_iter+0x2d0/0x410 [ 519.033393][ T2892] ? cgroup_seqfile_stop+0xc0/0xc0 [ 519.038629][ T2892] vfs_write+0xc4a/0xf80 [ 519.043387][ T2892] ? slab_free_freelist_hook+0xcc/0x1a0 [ 519.049167][ T2892] ? kernel_write+0x420/0x420 [ 519.054123][ T2892] ? do_sys_openat2+0x397/0x470 [ 519.059064][ T2892] ? __kasan_check_read+0x11/0x20 [ 519.064194][ T2892] ? __fdget_pos+0x27e/0x310 [ 519.068926][ T2892] ksys_write+0x198/0x2c0 [ 519.073248][ T2892] ? __ia32_sys_read+0x90/0x90 [ 519.078001][ T2892] ? debug_smp_processor_id+0x17/0x20 [ 519.083371][ T2892] __x64_sys_write+0x7b/0x90 [ 519.087957][ T2892] do_syscall_64+0x34/0x70 [ 519.092591][ T2892] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 519.098509][ T2892] RIP: 0033:0x7f48883727a9 [ 519.102921][ T2892] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 519.122979][ T2892] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 519.131489][ T2892] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 519.139553][ T2892] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 519.147702][ T2892] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 519.155667][ T2892] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 519.164601][ T2892] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002b [ 519.172704][ T2892] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 519.217146][ T2899] FAULT_INJECTION: forcing a failure. [ 519.217146][ T2899] name failslab, interval 1, probability 0, space 0, times 0 [ 519.230112][ T2899] CPU: 0 PID: 2899 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 519.240532][ T2899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 519.250689][ T2899] Call Trace: [ 519.254122][ T2899] dump_stack_lvl+0x1e2/0x24b [ 519.258798][ T2899] ? panic+0x7d7/0x7d7 [ 519.262858][ T2899] ? bfq_pos_tree_add_move+0x43e/0x43e [ 519.268891][ T2899] ? selinux_kernfs_init_security+0x1a8/0x760 [ 519.275046][ T2899] dump_stack+0x15/0x17 [ 519.279678][ T2899] should_fail+0x3c0/0x510 [ 519.284173][ T2899] __should_failslab+0x9f/0xe0 [ 519.289044][ T2899] should_failslab+0x9/0x20 [ 519.293554][ T2899] kmem_cache_alloc+0x3f/0x300 [ 519.298447][ T2899] ? __kernfs_new_node+0xdb/0x6e0 [ 519.303465][ T2899] __kernfs_new_node+0xdb/0x6e0 [ 519.308313][ T2899] ? is_module_text_address+0xe1/0x140 [ 519.313862][ T2899] ? kernfs_new_node+0x170/0x170 [ 519.319011][ T2899] ? ptr_to_hashval+0x60/0x60 [ 519.323725][ T2899] ? arch_stack_walk+0xf8/0x140 [ 519.329612][ T2899] ? snprintf+0xd6/0x120 [ 519.333847][ T2899] kernfs_new_node+0x97/0x170 [ 519.338784][ T2899] __kernfs_create_file+0x4a/0x270 [ 519.343992][ T2899] cgroup_addrm_files+0xab8/0xfe0 [ 519.349097][ T2899] ? ____kasan_kmalloc+0xdc/0x110 [ 519.354112][ T2899] ? __kasan_kmalloc+0x9/0x10 [ 519.360444][ T2899] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 519.366130][ T2899] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 519.372385][ T2899] ? delete_node+0x759/0x7b0 [ 519.376980][ T2899] ? __kasan_check_read+0x11/0x20 [ 519.381987][ T2899] ? delete_node+0x759/0x7b0 [ 519.386690][ T2899] ? __kasan_check_write+0x14/0x20 [ 519.391803][ T2899] ? idr_replace+0x1c4/0x230 [ 519.396392][ T2899] ? idr_get_next+0x4b0/0x4b0 [ 519.401154][ T2899] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 519.406167][ T2899] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 519.411379][ T2899] css_populate_dir+0x137/0x370 [ 519.416231][ T2899] cgroup_apply_control_enable+0x8b9/0x12f0 [ 519.422120][ T2899] cgroup_apply_control+0x8e/0x7e0 [ 519.427299][ T2899] ? css_next_child+0x160/0x160 [ 519.432215][ T2899] ? io_schedule+0x120/0x120 [ 519.436799][ T2899] ? kernfs_fop_write_iter+0x15e/0x410 [ 519.442251][ T2899] ? __kasan_check_write+0x14/0x20 [ 519.447342][ T2899] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 519.452892][ T2899] cgroup_subtree_control_write+0xd19/0x1310 [ 519.458896][ T2899] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 519.464870][ T2899] ? __kasan_check_write+0x14/0x20 [ 519.470103][ T2899] ? _copy_from_iter+0x3fb/0xd60 [ 519.475029][ T2899] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 519.481277][ T2899] cgroup_file_write+0x28e/0x590 [ 519.486333][ T2899] ? cgroup_seqfile_stop+0xc0/0xc0 [ 519.491444][ T2899] ? mutex_trylock+0x180/0x180 [ 519.496474][ T2899] ? __kasan_check_write+0x14/0x20 [ 519.501595][ T2899] kernfs_fop_write_iter+0x2d0/0x410 [ 519.507202][ T2899] ? cgroup_seqfile_stop+0xc0/0xc0 [ 519.512402][ T2899] vfs_write+0xc4a/0xf80 [ 519.516652][ T2899] ? kernel_write+0x420/0x420 [ 519.521422][ T2899] ? do_sys_openat2+0x397/0x470 [ 519.527174][ T2899] ? __kasan_check_read+0x11/0x20 [ 519.532230][ T2899] ? __fdget_pos+0x27e/0x310 [ 519.536836][ T2899] ksys_write+0x198/0x2c0 [ 519.541173][ T2899] ? __kasan_check_write+0x14/0x20 [ 519.546283][ T2899] ? __ia32_sys_read+0x90/0x90 [ 519.551041][ T2899] ? debug_smp_processor_id+0x17/0x20 [ 519.556398][ T2899] __x64_sys_write+0x7b/0x90 [ 519.560981][ T2899] do_syscall_64+0x34/0x70 [ 519.565384][ T2899] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 519.571352][ T2899] RIP: 0033:0x7f48883727a9 [ 519.575751][ T2899] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 519.595356][ T2899] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 519.603759][ T2899] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 519.611712][ T2899] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 519.619667][ T2899] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 519.627717][ T2899] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 519.635901][ T2899] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000037 [ 519.644207][ T2899] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 519.687320][ T2903] FAULT_INJECTION: forcing a failure. [ 519.687320][ T2903] name failslab, interval 1, probability 0, space 0, times 0 [ 519.700380][ T2903] CPU: 0 PID: 2903 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 519.710774][ T2903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 519.720936][ T2903] Call Trace: [ 519.724229][ T2903] dump_stack_lvl+0x1e2/0x24b [ 519.728898][ T2903] ? panic+0x7d7/0x7d7 [ 519.732960][ T2903] ? bfq_pos_tree_add_move+0x43e/0x43e [ 519.738626][ T2903] ? do_syscall_64+0x34/0x70 [ 519.743279][ T2903] dump_stack+0x15/0x17 [ 519.747564][ T2903] should_fail+0x3c0/0x510 [ 519.751991][ T2903] __should_failslab+0x9f/0xe0 [ 519.757112][ T2903] should_failslab+0x9/0x20 [ 519.761610][ T2903] kmem_cache_alloc+0x3f/0x300 [ 519.766452][ T2903] ? __kernfs_new_node+0xdb/0x6e0 [ 519.771480][ T2903] __kernfs_new_node+0xdb/0x6e0 [ 519.777365][ T2903] ? is_module_text_address+0xe1/0x140 [ 519.782804][ T2903] ? kernfs_new_node+0x170/0x170 [ 519.787723][ T2903] ? ptr_to_hashval+0x60/0x60 [ 519.792474][ T2903] ? arch_stack_walk+0xf8/0x140 [ 519.797415][ T2903] ? snprintf+0xd6/0x120 [ 519.801652][ T2903] kernfs_new_node+0x97/0x170 [ 519.806323][ T2903] __kernfs_create_file+0x4a/0x270 [ 519.811426][ T2903] cgroup_addrm_files+0xab8/0xfe0 [ 519.816434][ T2903] ? ____kasan_kmalloc+0xdc/0x110 [ 519.821442][ T2903] ? __kasan_kmalloc+0x9/0x10 [ 519.826192][ T2903] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 519.831744][ T2903] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 519.837980][ T2903] ? delete_node+0x759/0x7b0 [ 519.842558][ T2903] ? __kasan_check_read+0x11/0x20 [ 519.847579][ T2903] ? delete_node+0x759/0x7b0 [ 519.852178][ T2903] ? __kasan_check_write+0x14/0x20 [ 519.857382][ T2903] ? idr_replace+0x1c4/0x230 [ 519.862100][ T2903] ? idr_get_next+0x4b0/0x4b0 [ 519.866776][ T2903] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 519.871801][ T2903] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 519.877030][ T2903] css_populate_dir+0x137/0x370 [ 519.881873][ T2903] cgroup_apply_control_enable+0x8b9/0x12f0 [ 519.888058][ T2903] cgroup_apply_control+0x8e/0x7e0 [ 519.893171][ T2903] ? css_next_child+0x160/0x160 [ 519.898002][ T2903] ? stack_trace_save+0x12d/0x1f0 [ 519.903005][ T2903] ? io_schedule+0x120/0x120 [ 519.907674][ T2903] ? kernfs_fop_write_iter+0x15e/0x410 [ 519.913111][ T2903] ? __kasan_check_write+0x14/0x20 [ 519.918315][ T2903] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 519.923598][ T2903] cgroup_subtree_control_write+0xd19/0x1310 [ 519.929580][ T2903] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 519.935555][ T2903] ? __kasan_check_write+0x14/0x20 [ 519.940651][ T2903] ? _copy_from_iter+0x3fb/0xd60 [ 519.945576][ T2903] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 519.951552][ T2903] cgroup_file_write+0x28e/0x590 [ 519.956597][ T2903] ? cgroup_seqfile_stop+0xc0/0xc0 [ 519.961789][ T2903] ? mutex_trylock+0x180/0x180 [ 519.966626][ T2903] ? __kasan_check_write+0x14/0x20 [ 519.971735][ T2903] kernfs_fop_write_iter+0x2d0/0x410 [ 519.977019][ T2903] ? cgroup_seqfile_stop+0xc0/0xc0 [ 519.982132][ T2903] vfs_write+0xc4a/0xf80 [ 519.986367][ T2903] ? slab_free_freelist_hook+0xcc/0x1a0 [ 519.991921][ T2903] ? kernel_write+0x420/0x420 [ 519.996602][ T2903] ? do_sys_openat2+0x397/0x470 [ 520.001625][ T2903] ? __kasan_check_read+0x11/0x20 [ 520.006644][ T2903] ? __fdget_pos+0x27e/0x310 [ 520.011301][ T2903] ksys_write+0x198/0x2c0 [ 520.015639][ T2903] ? __ia32_sys_read+0x90/0x90 [ 520.020404][ T2903] ? debug_smp_processor_id+0x17/0x20 [ 520.025887][ T2903] __x64_sys_write+0x7b/0x90 [ 520.030561][ T2903] do_syscall_64+0x34/0x70 [ 520.035078][ T2903] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 520.040973][ T2903] RIP: 0033:0x7f48883727a9 [ 520.045482][ T2903] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 520.065742][ T2903] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 520.074295][ T2903] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 520.082258][ T2903] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 520.090215][ T2903] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 520.098184][ T2903] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 520.106595][ T2903] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000027 [ 520.114686][ T2903] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 520.157344][ T2896] FAULT_INJECTION: forcing a failure. [ 520.157344][ T2896] name failslab, interval 1, probability 0, space 0, times 0 [ 520.170126][ T2896] CPU: 1 PID: 2896 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 520.180748][ T2896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 520.190901][ T2896] Call Trace: [ 520.194199][ T2896] dump_stack_lvl+0x1e2/0x24b [ 520.198875][ T2896] ? bfq_pos_tree_add_move+0x43e/0x43e [ 520.204338][ T2896] ? selinux_kernfs_init_security+0x1a8/0x760 [ 520.210413][ T2896] dump_stack+0x15/0x17 [ 520.214568][ T2896] should_fail+0x3c0/0x510 [ 520.219023][ T2896] ? __kernfs_new_node+0x99/0x6e0 [ 520.224047][ T2896] __should_failslab+0x9f/0xe0 [ 520.228818][ T2896] should_failslab+0x9/0x20 [ 520.233408][ T2896] __kmalloc_track_caller+0x5f/0x350 [ 520.238702][ T2896] kstrdup_const+0x55/0x90 [ 520.243220][ T2896] __kernfs_new_node+0x99/0x6e0 [ 520.248072][ T2896] ? is_module_text_address+0xe1/0x140 [ 520.253523][ T2896] ? kernfs_new_node+0x170/0x170 [ 520.258452][ T2896] ? ptr_to_hashval+0x60/0x60 [ 520.263147][ T2896] ? mutex_lock+0xb2/0x1e0 [ 520.267559][ T2896] ? snprintf+0xd6/0x120 [ 520.271815][ T2896] ? mutex_unlock+0x29/0xf0 [ 520.276316][ T2896] kernfs_new_node+0x97/0x170 [ 520.281034][ T2896] __kernfs_create_file+0x4a/0x270 [ 520.286219][ T2896] cgroup_addrm_files+0xab8/0xfe0 [ 520.291248][ T2896] ? ____kasan_kmalloc+0xdc/0x110 [ 520.296354][ T2896] ? __kasan_kmalloc+0x9/0x10 [ 520.301049][ T2896] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 520.306754][ T2896] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 520.313059][ T2896] ? delete_node+0x759/0x7b0 [ 520.317650][ T2896] ? __kasan_check_read+0x11/0x20 [ 520.322664][ T2896] ? idr_replace+0x1c4/0x230 [ 520.327414][ T2896] ? idr_get_next+0x4b0/0x4b0 [ 520.332100][ T2896] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 520.337119][ T2896] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 520.342317][ T2896] css_populate_dir+0x137/0x370 [ 520.347214][ T2896] cgroup_apply_control_enable+0x8b9/0x12f0 [ 520.353126][ T2896] cgroup_apply_control+0x8e/0x7e0 [ 520.358228][ T2896] ? css_next_child+0x160/0x160 [ 520.363092][ T2896] ? io_schedule+0x120/0x120 [ 520.367806][ T2896] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 520.374045][ T2896] ? __kasan_check_write+0x14/0x20 [ 520.379150][ T2896] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 520.384452][ T2896] cgroup_subtree_control_write+0xd19/0x1310 [ 520.390435][ T2896] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 520.396529][ T2896] ? __kasan_check_write+0x14/0x20 [ 520.401640][ T2896] ? _copy_from_iter+0x3fb/0xd60 [ 520.406670][ T2896] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 520.412648][ T2896] cgroup_file_write+0x28e/0x590 [ 520.417672][ T2896] ? cgroup_seqfile_stop+0xc0/0xc0 [ 520.422781][ T2896] ? mutex_trylock+0x180/0x180 [ 520.427532][ T2896] ? __kasan_check_write+0x14/0x20 [ 520.432911][ T2896] kernfs_fop_write_iter+0x2d0/0x410 [ 520.438186][ T2896] ? cgroup_seqfile_stop+0xc0/0xc0 [ 520.443380][ T2896] vfs_write+0xc4a/0xf80 [ 520.447716][ T2896] ? slab_free_freelist_hook+0xcc/0x1a0 [ 520.453347][ T2896] ? kernel_write+0x420/0x420 [ 520.458006][ T2896] ? do_sys_openat2+0x397/0x470 [ 520.463009][ T2896] ? __kasan_check_read+0x11/0x20 [ 520.468033][ T2896] ? __fdget_pos+0x27e/0x310 [ 520.472719][ T2896] ksys_write+0x198/0x2c0 [ 520.477057][ T2896] ? __ia32_sys_read+0x90/0x90 [ 520.481821][ T2896] ? debug_smp_processor_id+0x17/0x20 [ 520.487260][ T2896] __x64_sys_write+0x7b/0x90 [ 520.491868][ T2896] do_syscall_64+0x34/0x70 [ 520.496310][ T2896] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 520.502247][ T2896] RIP: 0033:0x7f48883727a9 [ 520.506649][ T2896] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 520.526619][ T2896] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 520.535107][ T2896] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 520.543110][ T2896] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 520.551256][ T2896] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 520.559242][ T2896] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 520.567229][ T2896] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002c [ 520.575598][ T2896] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 520.617113][ T2904] FAULT_INJECTION: forcing a failure. [ 520.617113][ T2904] name failslab, interval 1, probability 0, space 0, times 0 [ 520.630110][ T2904] CPU: 0 PID: 2904 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 520.640777][ T2904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 520.650827][ T2904] Call Trace: [ 520.654130][ T2904] dump_stack_lvl+0x1e2/0x24b [ 520.658817][ T2904] ? panic+0x7d7/0x7d7 [ 520.662870][ T2904] ? bfq_pos_tree_add_move+0x43e/0x43e [ 520.668319][ T2904] ? selinux_kernfs_init_security+0x1a8/0x760 [ 520.674387][ T2904] dump_stack+0x15/0x17 [ 520.678553][ T2904] should_fail+0x3c0/0x510 [ 520.682987][ T2904] __should_failslab+0x9f/0xe0 [ 520.687758][ T2904] should_failslab+0x9/0x20 [ 520.692282][ T2904] kmem_cache_alloc+0x3f/0x300 [ 520.697075][ T2904] ? __kernfs_new_node+0xdb/0x6e0 [ 520.702272][ T2904] __kernfs_new_node+0xdb/0x6e0 [ 520.707141][ T2904] ? is_module_text_address+0xe1/0x140 [ 520.712664][ T2904] ? kernfs_new_node+0x170/0x170 [ 520.717757][ T2904] ? ptr_to_hashval+0x60/0x60 [ 520.722433][ T2904] ? arch_stack_walk+0xf8/0x140 [ 520.727436][ T2904] ? snprintf+0xd6/0x120 [ 520.731738][ T2904] kernfs_new_node+0x97/0x170 [ 520.736399][ T2904] __kernfs_create_file+0x4a/0x270 [ 520.741488][ T2904] cgroup_addrm_files+0xab8/0xfe0 [ 520.746491][ T2904] ? ____kasan_kmalloc+0xdc/0x110 [ 520.751499][ T2904] ? __kasan_kmalloc+0x9/0x10 [ 520.756157][ T2904] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 520.761680][ T2904] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 520.767899][ T2904] ? delete_node+0x759/0x7b0 [ 520.772504][ T2904] ? __kasan_check_read+0x11/0x20 [ 520.777501][ T2904] ? delete_node+0x759/0x7b0 [ 520.782064][ T2904] ? __kasan_check_write+0x14/0x20 [ 520.787165][ T2904] ? idr_replace+0x1c4/0x230 [ 520.791737][ T2904] ? idr_get_next+0x4b0/0x4b0 [ 520.796394][ T2904] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 520.801415][ T2904] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 520.806589][ T2904] css_populate_dir+0x137/0x370 [ 520.811417][ T2904] cgroup_apply_control_enable+0x8b9/0x12f0 [ 520.817290][ T2904] cgroup_apply_control+0x8e/0x7e0 [ 520.822474][ T2904] ? css_next_child+0x160/0x160 [ 520.827304][ T2904] ? stack_trace_save+0x12d/0x1f0 [ 520.832306][ T2904] ? io_schedule+0x120/0x120 [ 520.836892][ T2904] ? kernfs_fop_write_iter+0x15e/0x410 [ 520.842364][ T2904] ? __kasan_check_write+0x14/0x20 [ 520.847466][ T2904] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 520.852729][ T2904] cgroup_subtree_control_write+0xd19/0x1310 [ 520.858710][ T2904] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 520.864754][ T2904] ? __kasan_check_write+0x14/0x20 [ 520.869847][ T2904] ? _copy_from_iter+0x3fb/0xd60 [ 520.874769][ T2904] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 520.880726][ T2904] cgroup_file_write+0x28e/0x590 [ 520.885661][ T2904] ? cgroup_seqfile_stop+0xc0/0xc0 [ 520.890749][ T2904] ? mutex_trylock+0x180/0x180 [ 520.895487][ T2904] ? __kasan_check_write+0x14/0x20 [ 520.900577][ T2904] kernfs_fop_write_iter+0x2d0/0x410 [ 520.905839][ T2904] ? cgroup_seqfile_stop+0xc0/0xc0 [ 520.910950][ T2904] vfs_write+0xc4a/0xf80 [ 520.915168][ T2904] ? slab_free_freelist_hook+0xcc/0x1a0 [ 520.920706][ T2904] ? kernel_write+0x420/0x420 [ 520.925638][ T2904] ? do_sys_openat2+0x397/0x470 [ 520.930466][ T2904] ? __kasan_check_read+0x11/0x20 [ 520.935483][ T2904] ? __fdget_pos+0x27e/0x310 [ 520.940051][ T2904] ksys_write+0x198/0x2c0 [ 520.944356][ T2904] ? __kasan_check_write+0x14/0x20 [ 520.949448][ T2904] ? __ia32_sys_read+0x90/0x90 [ 520.954195][ T2904] ? debug_smp_processor_id+0x17/0x20 [ 520.959543][ T2904] __x64_sys_write+0x7b/0x90 [ 520.964114][ T2904] do_syscall_64+0x34/0x70 [ 520.969497][ T2904] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 520.975554][ T2904] RIP: 0033:0x7f48883727a9 [ 520.979968][ T2904] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 520.999676][ T2904] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 521.008082][ T2904] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 521.016255][ T2904] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 521.024494][ T2904] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 521.032454][ T2904] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 521.040457][ T2904] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002c [ 521.048672][ T2904] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 521.087172][ T2901] FAULT_INJECTION: forcing a failure. [ 521.087172][ T2901] name failslab, interval 1, probability 0, space 0, times 0 [ 521.100039][ T2901] CPU: 1 PID: 2901 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 521.110609][ T2901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 521.120763][ T2901] Call Trace: [ 521.124082][ T2901] dump_stack_lvl+0x1e2/0x24b [ 521.128747][ T2901] ? bfq_pos_tree_add_move+0x43e/0x43e [ 521.134198][ T2901] ? selinux_kernfs_init_security+0x1a8/0x760 [ 521.140310][ T2901] dump_stack+0x15/0x17 [ 521.144459][ T2901] should_fail+0x3c0/0x510 [ 521.148862][ T2901] ? __kernfs_new_node+0x99/0x6e0 [ 521.153884][ T2901] __should_failslab+0x9f/0xe0 [ 521.158641][ T2901] should_failslab+0x9/0x20 [ 521.163151][ T2901] __kmalloc_track_caller+0x5f/0x350 [ 521.168434][ T2901] kstrdup_const+0x55/0x90 [ 521.172828][ T2901] __kernfs_new_node+0x99/0x6e0 [ 521.177688][ T2901] ? is_module_text_address+0xe1/0x140 [ 521.183156][ T2901] ? kernfs_new_node+0x170/0x170 [ 521.188085][ T2901] ? ptr_to_hashval+0x60/0x60 [ 521.192892][ T2901] ? mutex_lock+0xb2/0x1e0 [ 521.197301][ T2901] ? snprintf+0xd6/0x120 [ 521.201537][ T2901] ? mutex_unlock+0x29/0xf0 [ 521.206201][ T2901] kernfs_new_node+0x97/0x170 [ 521.210875][ T2901] __kernfs_create_file+0x4a/0x270 [ 521.216058][ T2901] cgroup_addrm_files+0xab8/0xfe0 [ 521.221088][ T2901] ? ____kasan_kmalloc+0xdc/0x110 [ 521.226202][ T2901] ? __kasan_kmalloc+0x9/0x10 [ 521.230916][ T2901] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 521.236480][ T2901] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 521.242734][ T2901] ? delete_node+0x759/0x7b0 [ 521.247417][ T2901] ? __kasan_check_read+0x11/0x20 [ 521.252450][ T2901] ? idr_replace+0x1c4/0x230 [ 521.257033][ T2901] ? idr_get_next+0x4b0/0x4b0 [ 521.261793][ T2901] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 521.266821][ T2901] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 521.272013][ T2901] css_populate_dir+0x137/0x370 [ 521.276847][ T2901] cgroup_apply_control_enable+0x8b9/0x12f0 [ 521.282728][ T2901] cgroup_apply_control+0x8e/0x7e0 [ 521.287936][ T2901] ? css_next_child+0x160/0x160 [ 521.292930][ T2901] ? stack_trace_save+0x12d/0x1f0 [ 521.297954][ T2901] ? io_schedule+0x120/0x120 [ 521.302533][ T2901] ? kernfs_fop_write_iter+0x15e/0x410 [ 521.307999][ T2901] ? __kasan_check_write+0x14/0x20 [ 521.313231][ T2901] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 521.318541][ T2901] cgroup_subtree_control_write+0xd19/0x1310 [ 521.324513][ T2901] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 521.330604][ T2901] ? __kasan_check_write+0x14/0x20 [ 521.335729][ T2901] ? _copy_from_iter+0x3fb/0xd60 [ 521.340666][ T2901] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 521.346990][ T2901] cgroup_file_write+0x28e/0x590 [ 521.352013][ T2901] ? cgroup_seqfile_stop+0xc0/0xc0 [ 521.357115][ T2901] ? mutex_trylock+0x180/0x180 [ 521.361867][ T2901] ? __kasan_check_write+0x14/0x20 [ 521.367392][ T2901] kernfs_fop_write_iter+0x2d0/0x410 [ 521.372679][ T2901] ? cgroup_seqfile_stop+0xc0/0xc0 [ 521.377909][ T2901] vfs_write+0xc4a/0xf80 [ 521.382549][ T2901] ? slab_free_freelist_hook+0xcc/0x1a0 [ 521.388231][ T2901] ? kernel_write+0x420/0x420 [ 521.393056][ T2901] ? do_sys_openat2+0x397/0x470 [ 521.398020][ T2901] ? __kasan_check_read+0x11/0x20 [ 521.403141][ T2901] ? __fdget_pos+0x27e/0x310 [ 521.407841][ T2901] ksys_write+0x198/0x2c0 [ 521.412161][ T2901] ? __ia32_sys_read+0x90/0x90 [ 521.416908][ T2901] ? debug_smp_processor_id+0x17/0x20 [ 521.422294][ T2901] __x64_sys_write+0x7b/0x90 [ 521.426882][ T2901] do_syscall_64+0x34/0x70 [ 521.431337][ T2901] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 521.437223][ T2901] RIP: 0033:0x7f48883727a9 [ 521.441652][ T2901] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 521.461361][ T2901] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 521.470032][ T2901] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 521.478084][ T2901] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 521.486048][ T2901] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 521.494011][ T2901] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 521.502145][ T2901] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000027 [ 521.510603][ T2901] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 521.557563][ T2909] FAULT_INJECTION: forcing a failure. [ 521.557563][ T2909] name failslab, interval 1, probability 0, space 0, times 0 [ 521.570369][ T2909] CPU: 1 PID: 2909 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 521.580773][ T2909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 521.590813][ T2909] Call Trace: [ 521.594109][ T2909] dump_stack_lvl+0x1e2/0x24b [ 521.598786][ T2909] ? bfq_pos_tree_add_move+0x43e/0x43e [ 521.604264][ T2909] dump_stack+0x15/0x17 [ 521.608418][ T2909] should_fail+0x3c0/0x510 [ 521.612835][ T2909] __should_failslab+0x9f/0xe0 [ 521.617589][ T2909] should_failslab+0x9/0x20 [ 521.622071][ T2909] kmem_cache_alloc+0x3f/0x300 [ 521.626907][ T2909] ? radix_tree_node_alloc+0x194/0x3c0 [ 521.632417][ T2909] radix_tree_node_alloc+0x194/0x3c0 [ 521.637903][ T2909] ? kernfs_new_node+0x97/0x170 [ 521.642748][ T2909] ? __kernfs_create_file+0x4a/0x270 [ 521.648012][ T2909] ? cgroup_addrm_files+0xab8/0xfe0 [ 521.653263][ T2909] ? cgroup_apply_control_enable+0x8b9/0x12f0 [ 521.659309][ T2909] idr_get_free+0x2d8/0x990 [ 521.663857][ T2909] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 521.669940][ T2909] idr_alloc_cyclic+0x1ef/0x5d0 [ 521.674807][ T2909] ? idr_alloc+0x2f0/0x2f0 [ 521.679238][ T2909] ? __kasan_check_write+0x14/0x20 [ 521.684335][ T2909] ? _raw_spin_lock+0xa3/0x1b0 [ 521.689078][ T2909] ? __radix_tree_preload+0x361/0x3e0 [ 521.694429][ T2909] ? kmem_cache_alloc+0x1a4/0x300 [ 521.699436][ T2909] __kernfs_new_node+0x124/0x6e0 [ 521.704361][ T2909] ? is_module_text_address+0xe1/0x140 [ 521.709799][ T2909] ? kernfs_new_node+0x170/0x170 [ 521.714720][ T2909] ? ptr_to_hashval+0x60/0x60 [ 521.719424][ T2909] ? arch_stack_walk+0xf8/0x140 [ 521.724310][ T2909] ? snprintf+0xd6/0x120 [ 521.728859][ T2909] kernfs_new_node+0x97/0x170 [ 521.733554][ T2909] __kernfs_create_file+0x4a/0x270 [ 521.738681][ T2909] cgroup_addrm_files+0xab8/0xfe0 [ 521.743687][ T2909] ? ____kasan_kmalloc+0xdc/0x110 [ 521.748686][ T2909] ? __kasan_kmalloc+0x9/0x10 [ 521.753343][ T2909] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 521.758990][ T2909] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 521.765120][ T2909] ? delete_node+0x759/0x7b0 [ 521.769787][ T2909] ? __kasan_check_read+0x11/0x20 [ 521.774804][ T2909] ? delete_node+0x759/0x7b0 [ 521.779369][ T2909] ? __kasan_check_write+0x14/0x20 [ 521.784463][ T2909] ? idr_replace+0x1c4/0x230 [ 521.789033][ T2909] ? idr_get_next+0x4b0/0x4b0 [ 521.793699][ T2909] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 521.798708][ T2909] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 521.803974][ T2909] css_populate_dir+0x137/0x370 [ 521.808826][ T2909] cgroup_apply_control_enable+0x8b9/0x12f0 [ 521.814813][ T2909] cgroup_apply_control+0x8e/0x7e0 [ 521.819925][ T2909] ? css_next_child+0x160/0x160 [ 521.824765][ T2909] ? io_schedule+0x120/0x120 [ 521.829527][ T2909] ? kernfs_fop_write_iter+0x15e/0x410 [ 521.835051][ T2909] ? __kasan_check_write+0x14/0x20 [ 521.840141][ T2909] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 521.845402][ T2909] cgroup_subtree_control_write+0xd19/0x1310 [ 521.851386][ T2909] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 521.857348][ T2909] ? __kasan_check_write+0x14/0x20 [ 521.862435][ T2909] ? _copy_from_iter+0x3fb/0xd60 [ 521.867348][ T2909] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 521.873301][ T2909] cgroup_file_write+0x28e/0x590 [ 521.878220][ T2909] ? cgroup_seqfile_stop+0xc0/0xc0 [ 521.883306][ T2909] ? mutex_trylock+0x180/0x180 [ 521.888090][ T2909] ? __kasan_check_write+0x14/0x20 [ 521.893299][ T2909] kernfs_fop_write_iter+0x2d0/0x410 [ 521.898564][ T2909] ? cgroup_seqfile_stop+0xc0/0xc0 [ 521.904694][ T2909] vfs_write+0xc4a/0xf80 [ 521.908911][ T2909] ? kernel_write+0x420/0x420 [ 521.913589][ T2909] ? do_sys_openat2+0x397/0x470 [ 521.918445][ T2909] ? __kasan_check_read+0x11/0x20 [ 521.923469][ T2909] ? __fdget_pos+0x27e/0x310 [ 521.928045][ T2909] ksys_write+0x198/0x2c0 [ 521.932354][ T2909] ? __ia32_sys_read+0x90/0x90 [ 521.937099][ T2909] ? debug_smp_processor_id+0x17/0x20 [ 521.942444][ T2909] __x64_sys_write+0x7b/0x90 [ 521.947025][ T2909] do_syscall_64+0x34/0x70 [ 521.951682][ T2909] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 521.957656][ T2909] RIP: 0033:0x7f48883727a9 [ 521.962053][ T2909] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 521.981924][ T2909] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 521.990675][ T2909] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 521.998623][ T2909] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 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 [ 522.006574][ T2909] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 522.014545][ T2909] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 522.022524][ T2909] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000028 [ 522.077430][ T2907] FAULT_INJECTION: forcing a failure. [ 522.077430][ T2907] name failslab, interval 1, probability 0, space 0, times 0 [ 522.090235][ T2907] CPU: 0 PID: 2907 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 522.100626][ T2907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 522.110697][ T2907] Call Trace: [ 522.114011][ T2907] dump_stack_lvl+0x1e2/0x24b [ 522.118911][ T2907] ? bfq_pos_tree_add_move+0x43e/0x43e [ 522.124364][ T2907] ? selinux_kernfs_init_security+0x1a8/0x760 [ 522.130421][ T2907] dump_stack+0x15/0x17 [ 522.134573][ T2907] should_fail+0x3c0/0x510 [ 522.138978][ T2907] ? __kernfs_new_node+0x99/0x6e0 [ 522.144110][ T2907] __should_failslab+0x9f/0xe0 [ 522.149055][ T2907] should_failslab+0x9/0x20 [ 522.153567][ T2907] __kmalloc_track_caller+0x5f/0x350 [ 522.158851][ T2907] kstrdup_const+0x55/0x90 [ 522.163249][ T2907] __kernfs_new_node+0x99/0x6e0 [ 522.168197][ T2907] ? is_module_text_address+0xe1/0x140 [ 522.173937][ T2907] ? kernfs_new_node+0x170/0x170 [ 522.178870][ T2907] ? ptr_to_hashval+0x60/0x60 [ 522.183532][ T2907] ? mutex_lock+0xb2/0x1e0 [ 522.187928][ T2907] ? snprintf+0xd6/0x120 [ 522.192154][ T2907] ? mutex_unlock+0x29/0xf0 [ 522.196651][ T2907] kernfs_new_node+0x97/0x170 [ 522.201330][ T2907] __kernfs_create_file+0x4a/0x270 [ 522.206429][ T2907] cgroup_addrm_files+0xab8/0xfe0 [ 522.211453][ T2907] ? ____kasan_kmalloc+0xdc/0x110 [ 522.216575][ T2907] ? __kasan_kmalloc+0x9/0x10 [ 522.221252][ T2907] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 522.226786][ T2907] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 522.232952][ T2907] ? delete_node+0x759/0x7b0 [ 522.237557][ T2907] ? __kasan_check_read+0x11/0x20 [ 522.242571][ T2907] ? idr_replace+0x1c4/0x230 [ 522.247251][ T2907] ? idr_get_next+0x4b0/0x4b0 [ 522.251923][ T2907] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 522.256930][ T2907] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 522.262117][ T2907] css_populate_dir+0x137/0x370 [ 522.266949][ T2907] cgroup_apply_control_enable+0x8b9/0x12f0 [ 522.272828][ T2907] cgroup_apply_control+0x8e/0x7e0 [ 522.277922][ T2907] ? css_next_child+0x160/0x160 [ 522.282839][ T2907] ? stack_trace_save+0x12d/0x1f0 [ 522.287843][ T2907] ? io_schedule+0x120/0x120 [ 522.292419][ T2907] ? kernfs_fop_write_iter+0x15e/0x410 [ 522.297872][ T2907] ? __kasan_check_write+0x14/0x20 [ 522.302975][ T2907] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 522.308331][ T2907] cgroup_subtree_control_write+0xd19/0x1310 [ 522.314313][ T2907] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 522.320409][ T2907] ? __kasan_check_write+0x14/0x20 [ 522.325677][ T2907] ? _copy_from_iter+0x3fb/0xd60 [ 522.330599][ T2907] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 522.336743][ T2907] cgroup_file_write+0x28e/0x590 [ 522.341669][ T2907] ? cgroup_seqfile_stop+0xc0/0xc0 [ 522.346760][ T2907] ? mutex_trylock+0x180/0x180 [ 522.351507][ T2907] ? __kasan_check_write+0x14/0x20 [ 522.356600][ T2907] kernfs_fop_write_iter+0x2d0/0x410 [ 522.361865][ T2907] ? cgroup_seqfile_stop+0xc0/0xc0 [ 522.366955][ T2907] vfs_write+0xc4a/0xf80 [ 522.371180][ T2907] ? slab_free_freelist_hook+0xcc/0x1a0 [ 522.376713][ T2907] ? kernel_write+0x420/0x420 [ 522.381380][ T2907] ? do_sys_openat2+0x397/0x470 [ 522.386296][ T2907] ? __kasan_check_read+0x11/0x20 [ 522.391439][ T2907] ? __fdget_pos+0x27e/0x310 [ 522.396047][ T2907] ksys_write+0x198/0x2c0 [ 522.400476][ T2907] ? __ia32_sys_read+0x90/0x90 [ 522.405226][ T2907] ? debug_smp_processor_id+0x17/0x20 [ 522.411278][ T2907] __x64_sys_write+0x7b/0x90 [ 522.415864][ T2907] do_syscall_64+0x34/0x70 [ 522.420636][ T2907] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 522.426595][ T2907] RIP: 0033:0x7f48883727a9 [ 522.430992][ T2907] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 522.450854][ T2907] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 522.459345][ T2907] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 522.467331][ T2907] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 522.475307][ T2907] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 522.483281][ T2907] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 522.491260][ T2907] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002d [ 522.499471][ T2907] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 522.537180][ T2908] FAULT_INJECTION: forcing a failure. [ 522.537180][ T2908] name failslab, interval 1, probability 0, space 0, times 0 [ 522.549880][ T2908] CPU: 0 PID: 2908 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 522.560292][ T2908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 522.570369][ T2908] Call Trace: [ 522.573666][ T2908] dump_stack_lvl+0x1e2/0x24b [ 522.578419][ T2908] ? bfq_pos_tree_add_move+0x43e/0x43e [ 522.584516][ T2908] ? selinux_kernfs_init_security+0x1a8/0x760 [ 522.590579][ T2908] dump_stack+0x15/0x17 [ 522.594749][ T2908] should_fail+0x3c0/0x510 [ 522.599153][ T2908] ? __kernfs_new_node+0x99/0x6e0 [ 522.604163][ T2908] __should_failslab+0x9f/0xe0 [ 522.608902][ T2908] should_failslab+0x9/0x20 [ 522.613383][ T2908] __kmalloc_track_caller+0x5f/0x350 [ 522.618643][ T2908] kstrdup_const+0x55/0x90 [ 522.623039][ T2908] __kernfs_new_node+0x99/0x6e0 [ 522.627873][ T2908] ? is_module_text_address+0xe1/0x140 [ 522.633310][ T2908] ? kernfs_new_node+0x170/0x170 [ 522.638241][ T2908] ? ptr_to_hashval+0x60/0x60 [ 522.643009][ T2908] ? mutex_lock+0xb2/0x1e0 [ 522.647429][ T2908] ? snprintf+0xd6/0x120 [ 522.651660][ T2908] ? mutex_unlock+0x29/0xf0 [ 522.656356][ T2908] kernfs_new_node+0x97/0x170 [ 522.661143][ T2908] __kernfs_create_file+0x4a/0x270 [ 522.666256][ T2908] cgroup_addrm_files+0xab8/0xfe0 [ 522.671354][ T2908] ? ____kasan_kmalloc+0xdc/0x110 [ 522.676559][ T2908] ? __kasan_kmalloc+0x9/0x10 [ 522.681396][ T2908] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 522.686948][ T2908] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 522.693257][ T2908] ? delete_node+0x759/0x7b0 [ 522.697925][ T2908] ? __kasan_check_read+0x11/0x20 [ 522.702932][ T2908] ? idr_replace+0x1c4/0x230 [ 522.707520][ T2908] ? idr_get_next+0x4b0/0x4b0 [ 522.712284][ T2908] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 522.717334][ T2908] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 522.722524][ T2908] css_populate_dir+0x137/0x370 [ 522.727441][ T2908] cgroup_apply_control_enable+0x8b9/0x12f0 [ 522.733312][ T2908] cgroup_apply_control+0x8e/0x7e0 [ 522.738398][ T2908] ? css_next_child+0x160/0x160 [ 522.743662][ T2908] ? stack_trace_save+0x12d/0x1f0 [ 522.748660][ T2908] ? io_schedule+0x120/0x120 [ 522.753230][ T2908] ? kernfs_fop_write_iter+0x15e/0x410 [ 522.758665][ T2908] ? __kasan_check_write+0x14/0x20 [ 522.763763][ T2908] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 522.769029][ T2908] cgroup_subtree_control_write+0xd19/0x1310 [ 522.774986][ T2908] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 522.780942][ T2908] ? __kasan_check_write+0x14/0x20 [ 522.786123][ T2908] ? _copy_from_iter+0x3fb/0xd60 [ 522.791037][ T2908] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 522.796996][ T2908] cgroup_file_write+0x28e/0x590 [ 522.801997][ T2908] ? cgroup_seqfile_stop+0xc0/0xc0 [ 522.807086][ T2908] ? mutex_trylock+0x180/0x180 [ 522.811827][ T2908] ? __kasan_check_write+0x14/0x20 [ 522.816937][ T2908] kernfs_fop_write_iter+0x2d0/0x410 [ 522.822200][ T2908] ? cgroup_seqfile_stop+0xc0/0xc0 [ 522.827565][ T2908] vfs_write+0xc4a/0xf80 [ 522.831787][ T2908] ? slab_free_freelist_hook+0xcc/0x1a0 [ 522.837396][ T2908] ? kernel_write+0x420/0x420 [ 522.842047][ T2908] ? do_sys_openat2+0x397/0x470 [ 522.846874][ T2908] ? __kasan_check_read+0x11/0x20 [ 522.851959][ T2908] ? __fdget_pos+0x27e/0x310 [ 522.856533][ T2908] ksys_write+0x198/0x2c0 [ 522.860841][ T2908] ? __ia32_sys_read+0x90/0x90 [ 522.865609][ T2908] ? debug_smp_processor_id+0x17/0x20 [ 522.870974][ T2908] __x64_sys_write+0x7b/0x90 [ 522.875541][ T2908] do_syscall_64+0x34/0x70 [ 522.879942][ T2908] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 522.885820][ T2908] RIP: 0033:0x7f48883727a9 [ 522.890301][ T2908] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 522.909891][ T2908] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 522.918372][ T2908] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 522.926319][ T2908] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 522.934276][ T2908] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 522.942320][ T2908] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 522.950283][ T2908] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002d [ 522.958508][ T2908] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 522.987197][ T2914] FAULT_INJECTION: forcing a failure. [ 522.987197][ T2914] name failslab, interval 1, probability 0, space 0, times 0 [ 522.999955][ T2914] CPU: 0 PID: 2914 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 523.010448][ T2914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 523.020583][ T2914] Call Trace: [ 523.023879][ T2914] dump_stack_lvl+0x1e2/0x24b [ 523.028637][ T2914] ? bfq_pos_tree_add_move+0x43e/0x43e [ 523.034173][ T2914] ? selinux_kernfs_init_security+0x1a8/0x760 [ 523.040235][ T2914] dump_stack+0x15/0x17 [ 523.044475][ T2914] should_fail+0x3c0/0x510 [ 523.048892][ T2914] ? __kernfs_new_node+0x99/0x6e0 [ 523.054252][ T2914] __should_failslab+0x9f/0xe0 [ 523.059004][ T2914] should_failslab+0x9/0x20 [ 523.063491][ T2914] __kmalloc_track_caller+0x5f/0x350 [ 523.068759][ T2914] kstrdup_const+0x55/0x90 [ 523.073159][ T2914] __kernfs_new_node+0x99/0x6e0 [ 523.077994][ T2914] ? is_module_text_address+0xe1/0x140 [ 523.083452][ T2914] ? kernfs_new_node+0x170/0x170 [ 523.088388][ T2914] ? ptr_to_hashval+0x60/0x60 [ 523.093138][ T2914] ? arch_stack_walk+0xf8/0x140 [ 523.097988][ T2914] ? snprintf+0xd6/0x120 [ 523.102229][ T2914] kernfs_new_node+0x97/0x170 [ 523.106988][ T2914] __kernfs_create_file+0x4a/0x270 [ 523.112174][ T2914] cgroup_addrm_files+0xab8/0xfe0 [ 523.117297][ T2914] ? ____kasan_kmalloc+0xdc/0x110 [ 523.122854][ T2914] ? __kasan_kmalloc+0x9/0x10 [ 523.127521][ T2914] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 523.133866][ T2914] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 523.140095][ T2914] ? delete_node+0x759/0x7b0 [ 523.144672][ T2914] ? __kasan_check_read+0x11/0x20 [ 523.149836][ T2914] ? delete_node+0x759/0x7b0 [ 523.154454][ T2914] ? __kasan_check_write+0x14/0x20 [ 523.159626][ T2914] ? idr_replace+0x1c4/0x230 [ 523.164222][ T2914] ? idr_get_next+0x4b0/0x4b0 [ 523.169046][ T2914] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 523.174063][ T2914] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 523.179525][ T2914] css_populate_dir+0x137/0x370 [ 523.184381][ T2914] cgroup_apply_control_enable+0x8b9/0x12f0 [ 523.190259][ T2914] cgroup_apply_control+0x8e/0x7e0 [ 523.195548][ T2914] ? css_next_child+0x160/0x160 [ 523.200401][ T2914] ? stack_trace_save+0x12d/0x1f0 [ 523.205417][ T2914] ? io_schedule+0x120/0x120 [ 523.209992][ T2914] ? kernfs_fop_write_iter+0x15e/0x410 [ 523.215441][ T2914] ? __kasan_check_write+0x14/0x20 [ 523.220536][ T2914] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 523.225865][ T2914] cgroup_subtree_control_write+0xd19/0x1310 [ 523.231855][ T2914] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 523.237834][ T2914] ? __kasan_check_write+0x14/0x20 [ 523.243139][ T2914] ? _copy_from_iter+0x3fb/0xd60 [ 523.248387][ T2914] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 523.254548][ T2914] cgroup_file_write+0x28e/0x590 [ 523.259479][ T2914] ? cgroup_seqfile_stop+0xc0/0xc0 [ 523.264637][ T2914] ? mutex_trylock+0x180/0x180 [ 523.269393][ T2914] ? __kasan_check_write+0x14/0x20 [ 523.274491][ T2914] kernfs_fop_write_iter+0x2d0/0x410 [ 523.279759][ T2914] ? cgroup_seqfile_stop+0xc0/0xc0 [ 523.284951][ T2914] vfs_write+0xc4a/0xf80 [ 523.289191][ T2914] ? slab_free_freelist_hook+0xcc/0x1a0 [ 523.294719][ T2914] ? kernel_write+0x420/0x420 [ 523.299381][ T2914] ? do_sys_openat2+0x397/0x470 [ 523.304222][ T2914] ? __kasan_check_read+0x11/0x20 [ 523.309234][ T2914] ? __fdget_pos+0x27e/0x310 [ 523.313807][ T2914] ksys_write+0x198/0x2c0 [ 523.318136][ T2914] ? __ia32_sys_read+0x90/0x90 [ 523.323069][ T2914] ? debug_smp_processor_id+0x17/0x20 [ 523.328423][ T2914] __x64_sys_write+0x7b/0x90 [ 523.332996][ T2914] do_syscall_64+0x34/0x70 [ 523.337401][ T2914] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 523.343530][ T2914] RIP: 0033:0x7f48883727a9 [ 523.347946][ T2914] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 523.367711][ T2914] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 523.376210][ T2914] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 523.384574][ T2914] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 523.392703][ T2914] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 523.400667][ T2914] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 523.408647][ T2914] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002e [ 523.418924][ T2914] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 523.457305][ T2912] FAULT_INJECTION: forcing a failure. [ 523.457305][ T2912] name failslab, interval 1, probability 0, space 0, times 0 [ 523.470279][ T2912] CPU: 1 PID: 2912 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 523.480787][ T2912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 523.490836][ T2912] Call Trace: [ 523.494117][ T2912] dump_stack_lvl+0x1e2/0x24b [ 523.498778][ T2912] ? bfq_pos_tree_add_move+0x43e/0x43e [ 523.504307][ T2912] ? selinux_kernfs_init_security+0x1a8/0x760 [ 523.510428][ T2912] dump_stack+0x15/0x17 [ 523.514704][ T2912] should_fail+0x3c0/0x510 [ 523.519116][ T2912] ? __kernfs_new_node+0x99/0x6e0 [ 523.524208][ T2912] __should_failslab+0x9f/0xe0 [ 523.528961][ T2912] should_failslab+0x9/0x20 [ 523.533445][ T2912] __kmalloc_track_caller+0x5f/0x350 [ 523.538725][ T2912] kstrdup_const+0x55/0x90 [ 523.543134][ T2912] __kernfs_new_node+0x99/0x6e0 [ 523.547983][ T2912] ? is_module_text_address+0xe1/0x140 [ 523.553452][ T2912] ? kernfs_new_node+0x170/0x170 [ 523.558461][ T2912] ? ptr_to_hashval+0x60/0x60 [ 523.563121][ T2912] ? mutex_lock+0xb2/0x1e0 [ 523.567527][ T2912] ? snprintf+0xd6/0x120 [ 523.571741][ T2912] ? mutex_unlock+0x29/0xf0 [ 523.576238][ T2912] kernfs_new_node+0x97/0x170 [ 523.580993][ T2912] __kernfs_create_file+0x4a/0x270 [ 523.587236][ T2912] cgroup_addrm_files+0xab8/0xfe0 [ 523.592275][ T2912] ? ____kasan_kmalloc+0xdc/0x110 [ 523.597368][ T2912] ? __kasan_kmalloc+0x9/0x10 [ 523.602167][ T2912] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 523.607748][ T2912] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 523.614496][ T2912] ? delete_node+0x759/0x7b0 [ 523.619336][ T2912] ? __kasan_check_read+0x11/0x20 [ 523.624360][ T2912] ? idr_replace+0x1c4/0x230 [ 523.628948][ T2912] ? idr_get_next+0x4b0/0x4b0 [ 523.633605][ T2912] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 523.638630][ T2912] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 523.643815][ T2912] css_populate_dir+0x137/0x370 [ 523.648659][ T2912] cgroup_apply_control_enable+0x8b9/0x12f0 [ 523.654624][ T2912] cgroup_apply_control+0x8e/0x7e0 [ 523.659739][ T2912] ? css_next_child+0x160/0x160 [ 523.664661][ T2912] ? stack_trace_save+0x12d/0x1f0 [ 523.669777][ T2912] ? io_schedule+0x120/0x120 [ 523.674356][ T2912] ? kernfs_fop_write_iter+0x15e/0x410 [ 523.679823][ T2912] ? __kasan_check_write+0x14/0x20 [ 523.684935][ T2912] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 523.690207][ T2912] cgroup_subtree_control_write+0xd19/0x1310 [ 523.696169][ T2912] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 523.702132][ T2912] ? __kasan_check_write+0x14/0x20 [ 523.707309][ T2912] ? _copy_from_iter+0x3fb/0xd60 [ 523.712242][ T2912] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 523.718735][ T2912] cgroup_file_write+0x28e/0x590 [ 523.723779][ T2912] ? cgroup_seqfile_stop+0xc0/0xc0 [ 523.728922][ T2912] ? mutex_trylock+0x180/0x180 [ 523.733677][ T2912] ? __kasan_check_write+0x14/0x20 [ 523.738813][ T2912] kernfs_fop_write_iter+0x2d0/0x410 [ 523.744081][ T2912] ? cgroup_seqfile_stop+0xc0/0xc0 [ 523.749195][ T2912] vfs_write+0xc4a/0xf80 [ 523.753429][ T2912] ? slab_free_freelist_hook+0xcc/0x1a0 [ 523.758964][ T2912] ? kernel_write+0x420/0x420 [ 523.763625][ T2912] ? do_sys_openat2+0x397/0x470 [ 523.768454][ T2912] ? __kasan_check_read+0x11/0x20 [ 523.773585][ T2912] ? __fdget_pos+0x27e/0x310 [ 523.778184][ T2912] ksys_write+0x198/0x2c0 [ 523.782509][ T2912] ? __ia32_sys_read+0x90/0x90 [ 523.787382][ T2912] ? debug_smp_processor_id+0x17/0x20 [ 523.792962][ T2912] __x64_sys_write+0x7b/0x90 [ 523.797578][ T2912] do_syscall_64+0x34/0x70 [ 523.802275][ T2912] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 523.808173][ T2912] RIP: 0033:0x7f48883727a9 [ 523.812576][ T2912] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 523.832566][ T2912] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 523.840971][ T2912] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 523.848934][ T2912] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 523.856899][ T2912] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 523.864855][ T2912] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 523.872811][ T2912] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000029 [ 523.881047][ T2912] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 523.927266][ T2905] FAULT_INJECTION: forcing a failure. [ 523.927266][ T2905] name failslab, interval 1, probability 0, space 0, times 0 [ 523.940049][ T2905] CPU: 1 PID: 2905 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 523.950444][ T2905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 523.960502][ T2905] Call Trace: [ 523.963778][ T2905] dump_stack_lvl+0x1e2/0x24b [ 523.968440][ T2905] ? panic+0x7d7/0x7d7 [ 523.972680][ T2905] ? bfq_pos_tree_add_move+0x43e/0x43e [ 523.978260][ T2905] ? selinux_kernfs_init_security+0x1a8/0x760 [ 523.984328][ T2905] dump_stack+0x15/0x17 [ 523.988480][ T2905] should_fail+0x3c0/0x510 [ 523.992895][ T2905] __should_failslab+0x9f/0xe0 [ 523.997747][ T2905] should_failslab+0x9/0x20 [ 524.002255][ T2905] kmem_cache_alloc+0x3f/0x300 [ 524.007018][ T2905] ? __kernfs_new_node+0xdb/0x6e0 [ 524.012043][ T2905] __kernfs_new_node+0xdb/0x6e0 [ 524.016881][ T2905] ? is_module_text_address+0xe1/0x140 [ 524.022334][ T2905] ? kernfs_new_node+0x170/0x170 [ 524.027380][ T2905] ? ptr_to_hashval+0x60/0x60 [ 524.032051][ T2905] ? arch_stack_walk+0xf8/0x140 [ 524.036928][ T2905] ? snprintf+0xd6/0x120 [ 524.041248][ T2905] kernfs_new_node+0x97/0x170 [ 524.045924][ T2905] __kernfs_create_file+0x4a/0x270 [ 524.051060][ T2905] cgroup_addrm_files+0xab8/0xfe0 [ 524.056382][ T2905] ? ____kasan_kmalloc+0xdc/0x110 [ 524.061394][ T2905] ? __kasan_kmalloc+0x9/0x10 [ 524.066073][ T2905] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 524.071696][ T2905] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 524.077853][ T2905] ? delete_node+0x759/0x7b0 [ 524.082788][ T2905] ? __kasan_check_read+0x11/0x20 [ 524.087804][ T2905] ? delete_node+0x759/0x7b0 [ 524.092484][ T2905] ? __kasan_check_write+0x14/0x20 [ 524.097791][ T2905] ? idr_replace+0x1c4/0x230 [ 524.102387][ T2905] ? idr_get_next+0x4b0/0x4b0 [ 524.107153][ T2905] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 524.112264][ T2905] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 524.117704][ T2905] css_populate_dir+0x137/0x370 [ 524.122546][ T2905] cgroup_apply_control_enable+0x8b9/0x12f0 [ 524.128527][ T2905] cgroup_apply_control+0x8e/0x7e0 [ 524.133660][ T2905] ? css_next_child+0x160/0x160 [ 524.138497][ T2905] ? stack_trace_save+0x12d/0x1f0 [ 524.143593][ T2905] ? io_schedule+0x120/0x120 [ 524.148272][ T2905] ? kernfs_fop_write_iter+0x15e/0x410 [ 524.153723][ T2905] ? __kasan_check_write+0x14/0x20 [ 524.158815][ T2905] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 524.164184][ T2905] cgroup_subtree_control_write+0xd19/0x1310 [ 524.170152][ T2905] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 524.176287][ T2905] ? __kasan_check_write+0x14/0x20 [ 524.181387][ T2905] ? _copy_from_iter+0x3fb/0xd60 [ 524.186324][ T2905] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 524.192546][ T2905] cgroup_file_write+0x28e/0x590 [ 524.197466][ T2905] ? cgroup_seqfile_stop+0xc0/0xc0 [ 524.202742][ T2905] ? mutex_trylock+0x180/0x180 [ 524.207560][ T2905] ? __kasan_check_write+0x14/0x20 [ 524.212791][ T2905] kernfs_fop_write_iter+0x2d0/0x410 [ 524.218092][ T2905] ? cgroup_seqfile_stop+0xc0/0xc0 [ 524.223188][ T2905] vfs_write+0xc4a/0xf80 [ 524.227522][ T2905] ? slab_free_freelist_hook+0xcc/0x1a0 [ 524.233079][ T2905] ? kernel_write+0x420/0x420 [ 524.237859][ T2905] ? do_sys_openat2+0x397/0x470 [ 524.242899][ T2905] ? __kasan_check_read+0x11/0x20 [ 524.247917][ T2905] ? __fdget_pos+0x27e/0x310 [ 524.252742][ T2905] ksys_write+0x198/0x2c0 [ 524.257067][ T2905] ? __ia32_sys_read+0x90/0x90 [ 524.261926][ T2905] ? debug_smp_processor_id+0x17/0x20 [ 524.267293][ T2905] __x64_sys_write+0x7b/0x90 [ 524.271951][ T2905] do_syscall_64+0x34/0x70 [ 524.276362][ T2905] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 524.282608][ T2905] RIP: 0033:0x7f48883727a9 [ 524.287041][ T2905] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 524.306833][ T2905] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 524.315223][ T2905] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 524.323180][ T2905] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 524.331134][ T2905] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 524.339183][ T2905] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 524.347185][ T2905] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000038 [ 524.355407][ T2905] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 524.387383][ T2917] FAULT_INJECTION: forcing a failure. [ 524.387383][ T2917] name failslab, interval 1, probability 0, space 0, times 0 [ 524.400471][ T2917] CPU: 1 PID: 2917 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 524.410884][ T2917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 524.421024][ T2917] Call Trace: [ 524.424323][ T2917] dump_stack_lvl+0x1e2/0x24b [ 524.428988][ T2917] ? bfq_pos_tree_add_move+0x43e/0x43e [ 524.434437][ T2917] ? selinux_kernfs_init_security+0x1a8/0x760 [ 524.440483][ T2917] dump_stack+0x15/0x17 [ 524.444636][ T2917] should_fail+0x3c0/0x510 [ 524.449031][ T2917] ? __kernfs_new_node+0x99/0x6e0 [ 524.454046][ T2917] __should_failslab+0x9f/0xe0 [ 524.458784][ T2917] should_failslab+0x9/0x20 [ 524.463304][ T2917] __kmalloc_track_caller+0x5f/0x350 [ 524.468569][ T2917] kstrdup_const+0x55/0x90 [ 524.472961][ T2917] __kernfs_new_node+0x99/0x6e0 [ 524.477794][ T2917] ? is_module_text_address+0xe1/0x140 [ 524.483511][ T2917] ? kernfs_new_node+0x170/0x170 [ 524.488458][ T2917] ? ptr_to_hashval+0x60/0x60 [ 524.493143][ T2917] ? mutex_lock+0xb2/0x1e0 [ 524.497978][ T2917] ? snprintf+0xd6/0x120 [ 524.502701][ T2917] ? mutex_unlock+0x29/0xf0 [ 524.507486][ T2917] kernfs_new_node+0x97/0x170 [ 524.512432][ T2917] __kernfs_create_file+0x4a/0x270 [ 524.517998][ T2917] cgroup_addrm_files+0xab8/0xfe0 [ 524.523124][ T2917] ? ____kasan_kmalloc+0xdc/0x110 [ 524.528137][ T2917] ? __kasan_kmalloc+0x9/0x10 [ 524.532812][ T2917] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 524.538455][ T2917] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 524.544687][ T2917] ? delete_node+0x759/0x7b0 [ 524.549375][ T2917] ? __kasan_check_read+0x11/0x20 [ 524.554613][ T2917] ? idr_replace+0x1c4/0x230 [ 524.559198][ T2917] ? idr_get_next+0x4b0/0x4b0 [ 524.563868][ T2917] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 524.568870][ T2917] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 524.574110][ T2917] css_populate_dir+0x137/0x370 [ 524.578964][ T2917] cgroup_apply_control_enable+0x8b9/0x12f0 [ 524.584854][ T2917] cgroup_apply_control+0x8e/0x7e0 [ 524.589963][ T2917] ? css_next_child+0x160/0x160 [ 524.594799][ T2917] ? stack_trace_save+0x12d/0x1f0 [ 524.599802][ T2917] ? io_schedule+0x120/0x120 [ 524.604546][ T2917] ? kernfs_fop_write_iter+0x15e/0x410 [ 524.610001][ T2917] ? __kasan_check_write+0x14/0x20 [ 524.615106][ T2917] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 524.620403][ T2917] cgroup_subtree_control_write+0xd19/0x1310 [ 524.626406][ T2917] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 524.632387][ T2917] ? __kasan_check_write+0x14/0x20 [ 524.637516][ T2917] ? _copy_from_iter+0x3fb/0xd60 [ 524.642469][ T2917] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 524.648451][ T2917] cgroup_file_write+0x28e/0x590 [ 524.653386][ T2917] ? cgroup_seqfile_stop+0xc0/0xc0 [ 524.658697][ T2917] ? mutex_trylock+0x180/0x180 [ 524.663465][ T2917] ? __kasan_check_write+0x14/0x20 [ 524.668677][ T2917] kernfs_fop_write_iter+0x2d0/0x410 [ 524.674043][ T2917] ? cgroup_seqfile_stop+0xc0/0xc0 [ 524.679290][ T2917] vfs_write+0xc4a/0xf80 [ 524.683528][ T2917] ? slab_free_freelist_hook+0xcc/0x1a0 [ 524.689862][ T2917] ? kernel_write+0x420/0x420 [ 524.694798][ T2917] ? do_sys_openat2+0x397/0x470 [ 524.699860][ T2917] ? __kasan_check_read+0x11/0x20 [ 524.704968][ T2917] ? __fdget_pos+0x27e/0x310 [ 524.709626][ T2917] ksys_write+0x198/0x2c0 [ 524.713934][ T2917] ? __ia32_sys_read+0x90/0x90 [ 524.718678][ T2917] ? debug_smp_processor_id+0x17/0x20 [ 524.724034][ T2917] __x64_sys_write+0x7b/0x90 [ 524.728727][ T2917] do_syscall_64+0x34/0x70 [ 524.733124][ T2917] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 524.739100][ T2917] RIP: 0033:0x7f48883727a9 [ 524.743673][ T2917] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 524.763377][ T2917] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 524.772100][ T2917] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 524.780077][ T2917] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 524.788153][ T2917] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 524.796123][ T2917] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 524.804173][ T2917] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000039 [ 524.812377][ T2917] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 524.857439][ T2916] FAULT_INJECTION: forcing a failure. [ 524.857439][ T2916] name failslab, interval 1, probability 0, space 0, times 0 [ 524.870537][ T2916] CPU: 1 PID: 2916 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 524.881145][ T2916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 524.891194][ T2916] Call Trace: [ 524.894481][ T2916] dump_stack_lvl+0x1e2/0x24b [ 524.899162][ T2916] ? bfq_pos_tree_add_move+0x43e/0x43e [ 524.904624][ T2916] ? selinux_kernfs_init_security+0x1a8/0x760 [ 524.910694][ T2916] dump_stack+0x15/0x17 [ 524.914832][ T2916] should_fail+0x3c0/0x510 [ 524.919236][ T2916] ? __kernfs_new_node+0x99/0x6e0 [ 524.924255][ T2916] __should_failslab+0x9f/0xe0 [ 524.929034][ T2916] should_failslab+0x9/0x20 [ 524.933533][ T2916] __kmalloc_track_caller+0x5f/0x350 [ 524.938849][ T2916] kstrdup_const+0x55/0x90 [ 524.943363][ T2916] __kernfs_new_node+0x99/0x6e0 [ 524.948295][ T2916] ? is_module_text_address+0xe1/0x140 [ 524.953779][ T2916] ? kernfs_new_node+0x170/0x170 [ 524.958726][ T2916] ? ptr_to_hashval+0x60/0x60 [ 524.963526][ T2916] ? mutex_lock+0xb2/0x1e0 [ 524.967939][ T2916] ? snprintf+0xd6/0x120 [ 524.972188][ T2916] ? mutex_unlock+0x29/0xf0 [ 524.976681][ T2916] kernfs_new_node+0x97/0x170 [ 524.981341][ T2916] __kernfs_create_file+0x4a/0x270 [ 524.986439][ T2916] cgroup_addrm_files+0xab8/0xfe0 [ 524.991450][ T2916] ? ____kasan_kmalloc+0xdc/0x110 [ 524.996455][ T2916] ? __kasan_kmalloc+0x9/0x10 [ 525.001128][ T2916] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 525.006756][ T2916] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 525.013106][ T2916] ? delete_node+0x759/0x7b0 [ 525.017685][ T2916] ? __kasan_check_read+0x11/0x20 [ 525.022694][ T2916] ? idr_replace+0x1c4/0x230 [ 525.027267][ T2916] ? idr_get_next+0x4b0/0x4b0 [ 525.031962][ T2916] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 525.036964][ T2916] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 525.042342][ T2916] css_populate_dir+0x137/0x370 [ 525.047177][ T2916] cgroup_apply_control_enable+0x8b9/0x12f0 [ 525.053112][ T2916] cgroup_apply_control+0x8e/0x7e0 [ 525.058271][ T2916] ? css_next_child+0x160/0x160 [ 525.063115][ T2916] ? stack_trace_save+0x12d/0x1f0 [ 525.068338][ T2916] ? io_schedule+0x120/0x120 [ 525.072914][ T2916] ? kernfs_fop_write_iter+0x15e/0x410 [ 525.078353][ T2916] ? __kasan_check_write+0x14/0x20 [ 525.083534][ T2916] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 525.088826][ T2916] cgroup_subtree_control_write+0xd19/0x1310 [ 525.094878][ T2916] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 525.100853][ T2916] ? __kasan_check_write+0x14/0x20 [ 525.106052][ T2916] ? _copy_from_iter+0x3fb/0xd60 [ 525.110971][ T2916] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 525.116945][ T2916] cgroup_file_write+0x28e/0x590 [ 525.121872][ T2916] ? cgroup_seqfile_stop+0xc0/0xc0 [ 525.127048][ T2916] ? mutex_trylock+0x180/0x180 [ 525.131797][ T2916] ? __kasan_check_write+0x14/0x20 [ 525.137359][ T2916] kernfs_fop_write_iter+0x2d0/0x410 [ 525.142709][ T2916] ? cgroup_seqfile_stop+0xc0/0xc0 [ 525.147839][ T2916] vfs_write+0xc4a/0xf80 [ 525.152083][ T2916] ? slab_free_freelist_hook+0xcc/0x1a0 [ 525.158339][ T2916] ? kernel_write+0x420/0x420 [ 525.163015][ T2916] ? do_sys_openat2+0x397/0x470 [ 525.167860][ T2916] ? __kasan_check_read+0x11/0x20 [ 525.172873][ T2916] ? __fdget_pos+0x27e/0x310 [ 525.177448][ T2916] ksys_write+0x198/0x2c0 [ 525.181756][ T2916] ? __ia32_sys_read+0x90/0x90 [ 525.186543][ T2916] ? debug_smp_processor_id+0x17/0x20 [ 525.191899][ T2916] __x64_sys_write+0x7b/0x90 [ 525.196492][ T2916] do_syscall_64+0x34/0x70 [ 525.200906][ T2916] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 525.206881][ T2916] RIP: 0033:0x7f48883727a9 [ 525.211298][ T2916] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 525.230992][ T2916] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 525.239391][ T2916] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 525.247363][ T2916] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 525.255320][ T2916] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 525.263305][ T2916] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 525.271292][ T2916] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002a [ 525.279504][ T2916] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 525.337200][ T2910] FAULT_INJECTION: forcing a failure. [ 525.337200][ T2910] name failslab, interval 1, probability 0, space 0, times 0 [ 525.350115][ T2910] CPU: 0 PID: 2910 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 525.360657][ T2910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 525.370702][ T2910] Call Trace: [ 525.373995][ T2910] dump_stack_lvl+0x1e2/0x24b [ 525.378663][ T2910] ? panic+0x7d7/0x7d7 [ 525.382712][ T2910] ? bfq_pos_tree_add_move+0x43e/0x43e [ 525.388154][ T2910] ? selinux_kernfs_init_security+0x1a8/0x760 [ 525.394208][ T2910] dump_stack+0x15/0x17 [ 525.398370][ T2910] should_fail+0x3c0/0x510 [ 525.402873][ T2910] __should_failslab+0x9f/0xe0 [ 525.407635][ T2910] should_failslab+0x9/0x20 [ 525.412254][ T2910] kmem_cache_alloc+0x3f/0x300 [ 525.417566][ T2910] ? __kernfs_new_node+0xdb/0x6e0 [ 525.422773][ T2910] __kernfs_new_node+0xdb/0x6e0 [ 525.427619][ T2910] ? is_module_text_address+0xe1/0x140 [ 525.433487][ T2910] ? kernfs_new_node+0x170/0x170 [ 525.438615][ T2910] ? ptr_to_hashval+0x60/0x60 [ 525.443278][ T2910] ? arch_stack_walk+0xf8/0x140 [ 525.448216][ T2910] ? snprintf+0xd6/0x120 [ 525.452565][ T2910] kernfs_new_node+0x97/0x170 [ 525.457249][ T2910] __kernfs_create_file+0x4a/0x270 [ 525.462509][ T2910] cgroup_addrm_files+0xab8/0xfe0 [ 525.469222][ T2910] ? ____kasan_kmalloc+0xdc/0x110 [ 525.474255][ T2910] ? __kasan_kmalloc+0x9/0x10 [ 525.479003][ T2910] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 525.484543][ T2910] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 525.490687][ T2910] ? delete_node+0x759/0x7b0 [ 525.495284][ T2910] ? __kasan_check_read+0x11/0x20 [ 525.500304][ T2910] ? delete_node+0x759/0x7b0 [ 525.504903][ T2910] ? __kasan_check_write+0x14/0x20 [ 525.510311][ T2910] ? idr_replace+0x1c4/0x230 [ 525.515244][ T2910] ? idr_get_next+0x4b0/0x4b0 [ 525.520786][ T2910] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 525.525884][ T2910] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 525.531365][ T2910] css_populate_dir+0x137/0x370 [ 525.536302][ T2910] cgroup_apply_control_enable+0x8b9/0x12f0 [ 525.542183][ T2910] cgroup_apply_control+0x8e/0x7e0 [ 525.547281][ T2910] ? css_next_child+0x160/0x160 [ 525.552311][ T2910] ? stack_trace_save+0x12d/0x1f0 [ 525.558627][ T2910] ? io_schedule+0x120/0x120 [ 525.563213][ T2910] ? kernfs_fop_write_iter+0x15e/0x410 [ 525.568686][ T2910] ? __kasan_check_write+0x14/0x20 [ 525.573790][ T2910] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 525.579059][ T2910] cgroup_subtree_control_write+0xd19/0x1310 [ 525.585017][ T2910] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 525.591157][ T2910] ? __kasan_check_write+0x14/0x20 [ 525.596252][ T2910] ? _copy_from_iter+0x3fb/0xd60 [ 525.601180][ T2910] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 525.607144][ T2910] cgroup_file_write+0x28e/0x590 [ 525.612077][ T2910] ? cgroup_seqfile_stop+0xc0/0xc0 [ 525.617554][ T2910] ? mutex_trylock+0x180/0x180 [ 525.622311][ T2910] ? __kasan_check_write+0x14/0x20 [ 525.627420][ T2910] kernfs_fop_write_iter+0x2d0/0x410 [ 525.632888][ T2910] ? cgroup_seqfile_stop+0xc0/0xc0 [ 525.637998][ T2910] vfs_write+0xc4a/0xf80 [ 525.642219][ T2910] ? slab_free_freelist_hook+0xcc/0x1a0 [ 525.647831][ T2910] ? kernel_write+0x420/0x420 [ 525.652604][ T2910] ? do_sys_openat2+0x397/0x470 [ 525.657760][ T2910] ? __kasan_check_read+0x11/0x20 [ 525.662876][ T2910] ? __fdget_pos+0x27e/0x310 [ 525.667466][ T2910] ksys_write+0x198/0x2c0 [ 525.672016][ T2910] ? __ia32_sys_read+0x90/0x90 [ 525.676768][ T2910] ? debug_smp_processor_id+0x17/0x20 [ 525.682143][ T2910] __x64_sys_write+0x7b/0x90 [ 525.686718][ T2910] do_syscall_64+0x34/0x70 [ 525.691128][ T2910] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 525.697215][ T2910] RIP: 0033:0x7f48883727a9 [ 525.701629][ T2910] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 525.721333][ T2910] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 525.729772][ T2910] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 525.737758][ T2910] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 525.745815][ T2910] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 525.753781][ T2910] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 525.761754][ T2910] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000029 [ 525.769943][ T2910] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 525.817307][ T2920] FAULT_INJECTION: forcing a failure. [ 525.817307][ T2920] name failslab, interval 1, probability 0, space 0, times 0 [ 525.830117][ T2920] CPU: 1 PID: 2920 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 525.840870][ T2920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 525.851182][ T2920] Call Trace: [ 525.854601][ T2920] dump_stack_lvl+0x1e2/0x24b [ 525.859289][ T2920] ? bfq_pos_tree_add_move+0x43e/0x43e [ 525.864932][ T2920] ? selinux_kernfs_init_security+0x1a8/0x760 [ 525.870980][ T2920] dump_stack+0x15/0x17 [ 525.875116][ T2920] should_fail+0x3c0/0x510 [ 525.879511][ T2920] ? __kernfs_new_node+0x99/0x6e0 [ 525.884513][ T2920] __should_failslab+0x9f/0xe0 [ 525.889262][ T2920] should_failslab+0x9/0x20 [ 525.893742][ T2920] __kmalloc_track_caller+0x5f/0x350 [ 525.899025][ T2920] kstrdup_const+0x55/0x90 [ 525.903422][ T2920] __kernfs_new_node+0x99/0x6e0 [ 525.908309][ T2920] ? is_module_text_address+0xe1/0x140 [ 525.914141][ T2920] ? kernfs_new_node+0x170/0x170 [ 525.919145][ T2920] ? ptr_to_hashval+0x60/0x60 [ 525.923891][ T2920] ? mutex_lock+0xb2/0x1e0 [ 525.928287][ T2920] ? snprintf+0xd6/0x120 [ 525.932510][ T2920] ? mutex_unlock+0x29/0xf0 [ 525.936998][ T2920] kernfs_new_node+0x97/0x170 [ 525.941678][ T2920] __kernfs_create_file+0x4a/0x270 [ 525.946792][ T2920] cgroup_addrm_files+0xab8/0xfe0 [ 525.951814][ T2920] ? ____kasan_kmalloc+0xdc/0x110 [ 525.956918][ T2920] ? __kasan_kmalloc+0x9/0x10 [ 525.961594][ T2920] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 525.967143][ T2920] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 525.973399][ T2920] ? delete_node+0x759/0x7b0 [ 525.977992][ T2920] ? __kasan_check_read+0x11/0x20 [ 525.983089][ T2920] ? idr_replace+0x1c4/0x230 [ 525.987667][ T2920] ? idr_get_next+0x4b0/0x4b0 [ 525.992329][ T2920] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 525.997355][ T2920] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 526.002640][ T2920] css_populate_dir+0x137/0x370 [ 526.007493][ T2920] cgroup_apply_control_enable+0x8b9/0x12f0 [ 526.013386][ T2920] cgroup_apply_control+0x8e/0x7e0 [ 526.018593][ T2920] ? css_next_child+0x160/0x160 [ 526.023623][ T2920] ? stack_trace_save+0x12d/0x1f0 [ 526.028638][ T2920] ? io_schedule+0x120/0x120 [ 526.033214][ T2920] ? kernfs_fop_write_iter+0x15e/0x410 [ 526.038657][ T2920] ? __kasan_check_write+0x14/0x20 [ 526.044010][ T2920] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 526.049375][ T2920] cgroup_subtree_control_write+0xd19/0x1310 [ 526.055445][ T2920] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 526.061690][ T2920] ? __kasan_check_write+0x14/0x20 [ 526.066790][ T2920] ? _copy_from_iter+0x3fb/0xd60 [ 526.071706][ T2920] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 526.077675][ T2920] cgroup_file_write+0x28e/0x590 [ 526.082596][ T2920] ? cgroup_seqfile_stop+0xc0/0xc0 [ 526.087718][ T2920] ? mutex_trylock+0x180/0x180 [ 526.092501][ T2920] ? __kasan_check_write+0x14/0x20 [ 526.097594][ T2920] kernfs_fop_write_iter+0x2d0/0x410 [ 526.102867][ T2920] ? cgroup_seqfile_stop+0xc0/0xc0 [ 526.108014][ T2920] vfs_write+0xc4a/0xf80 [ 526.112240][ T2920] ? slab_free_freelist_hook+0xcc/0x1a0 [ 526.117778][ T2920] ? kernel_write+0x420/0x420 [ 526.122455][ T2920] ? do_sys_openat2+0x397/0x470 [ 526.127372][ T2920] ? __kasan_check_read+0x11/0x20 [ 526.132379][ T2920] ? __fdget_pos+0x27e/0x310 [ 526.137042][ T2920] ksys_write+0x198/0x2c0 [ 526.141347][ T2920] ? __kasan_check_write+0x14/0x20 [ 526.146487][ T2920] ? __ia32_sys_read+0x90/0x90 [ 526.151257][ T2920] ? debug_smp_processor_id+0x17/0x20 [ 526.156701][ T2920] __x64_sys_write+0x7b/0x90 [ 526.161281][ T2920] do_syscall_64+0x34/0x70 [ 526.165865][ T2920] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 526.171765][ T2920] RIP: 0033:0x7f48883727a9 [ 526.176177][ T2920] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 526.195770][ T2920] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 526.204286][ T2920] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 526.212427][ T2920] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 526.220396][ T2920] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 526.228507][ T2920] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 526.236471][ T2920] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002a [ 526.245027][ T2920] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 526.287036][ T2918] FAULT_INJECTION: forcing a failure. [ 526.287036][ T2918] name failslab, interval 1, probability 0, space 0, times 0 [ 526.299742][ T2918] CPU: 1 PID: 2918 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 526.310567][ T2918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 526.320880][ T2918] Call Trace: [ 526.324274][ T2918] dump_stack_lvl+0x1e2/0x24b [ 526.328939][ T2918] ? bfq_pos_tree_add_move+0x43e/0x43e [ 526.334373][ T2918] ? selinux_kernfs_init_security+0x1a8/0x760 [ 526.340426][ T2918] dump_stack+0x15/0x17 [ 526.344598][ T2918] should_fail+0x3c0/0x510 [ 526.348994][ T2918] ? __kernfs_new_node+0x99/0x6e0 [ 526.354088][ T2918] __should_failslab+0x9f/0xe0 [ 526.358862][ T2918] should_failslab+0x9/0x20 [ 526.363355][ T2918] __kmalloc_track_caller+0x5f/0x350 [ 526.368817][ T2918] kstrdup_const+0x55/0x90 [ 526.373390][ T2918] __kernfs_new_node+0x99/0x6e0 [ 526.378522][ T2918] ? is_module_text_address+0xe1/0x140 [ 526.383983][ T2918] ? kernfs_new_node+0x170/0x170 [ 526.388911][ T2918] ? ptr_to_hashval+0x60/0x60 [ 526.393565][ T2918] ? mutex_lock+0xb2/0x1e0 [ 526.397961][ T2918] ? snprintf+0xd6/0x120 [ 526.402183][ T2918] ? mutex_unlock+0x29/0xf0 [ 526.406676][ T2918] kernfs_new_node+0x97/0x170 [ 526.411339][ T2918] __kernfs_create_file+0x4a/0x270 [ 526.416457][ T2918] cgroup_addrm_files+0xab8/0xfe0 [ 526.421470][ T2918] ? ____kasan_kmalloc+0xdc/0x110 [ 526.426478][ T2918] ? __kasan_kmalloc+0x9/0x10 [ 526.431143][ T2918] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 526.436682][ T2918] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 526.442835][ T2918] ? delete_node+0x759/0x7b0 [ 526.447415][ T2918] ? __kasan_check_read+0x11/0x20 [ 526.452622][ T2918] ? idr_replace+0x1c4/0x230 [ 526.457185][ T2918] ? idr_get_next+0x4b0/0x4b0 [ 526.461844][ T2918] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 526.466961][ T2918] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 526.472149][ T2918] css_populate_dir+0x137/0x370 [ 526.476976][ T2918] cgroup_apply_control_enable+0x8b9/0x12f0 [ 526.482996][ T2918] cgroup_apply_control+0x8e/0x7e0 [ 526.488099][ T2918] ? css_next_child+0x160/0x160 [ 526.492949][ T2918] ? io_schedule+0x120/0x120 [ 526.497661][ T2918] ? kernfs_fop_write_iter+0x15e/0x410 [ 526.503119][ T2918] ? __kasan_check_write+0x14/0x20 [ 526.508218][ T2918] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 526.513518][ T2918] cgroup_subtree_control_write+0xd19/0x1310 [ 526.519495][ T2918] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 526.525595][ T2918] ? __kasan_check_write+0x14/0x20 [ 526.530963][ T2918] ? _copy_from_iter+0x3fb/0xd60 [ 526.535915][ T2918] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 526.541882][ T2918] cgroup_file_write+0x28e/0x590 [ 526.546810][ T2918] ? cgroup_seqfile_stop+0xc0/0xc0 [ 526.551902][ T2918] ? mutex_trylock+0x180/0x180 [ 526.556742][ T2918] ? __kasan_check_write+0x14/0x20 [ 526.561839][ T2918] kernfs_fop_write_iter+0x2d0/0x410 [ 526.567124][ T2918] ? cgroup_seqfile_stop+0xc0/0xc0 [ 526.572358][ T2918] vfs_write+0xc4a/0xf80 [ 526.576608][ T2918] ? kernel_write+0x420/0x420 [ 526.581368][ T2918] ? do_sys_openat2+0x397/0x470 [ 526.586243][ T2918] ? __kasan_check_read+0x11/0x20 [ 526.591248][ T2918] ? __fdget_pos+0x27e/0x310 [ 526.595815][ T2918] ksys_write+0x198/0x2c0 [ 526.600208][ T2918] ? __ia32_sys_read+0x90/0x90 [ 526.605035][ T2918] ? debug_smp_processor_id+0x17/0x20 [ 526.610396][ T2918] __x64_sys_write+0x7b/0x90 [ 526.615338][ T2918] do_syscall_64+0x34/0x70 [ 526.619840][ T2918] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 526.625716][ T2918] RIP: 0033:0x7f48883727a9 [ 526.630122][ T2918] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 526.649723][ T2918] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 526.658144][ T2918] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 526.666111][ T2918] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 526.674179][ T2918] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 526.682154][ T2918] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 526.690190][ T2918] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003a [ 526.698272][ T2918] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 526.737060][ T2911] FAULT_INJECTION: forcing a failure. [ 526.737060][ T2911] name failslab, interval 1, probability 0, space 0, times 0 [ 526.750198][ T2911] CPU: 0 PID: 2911 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 526.760788][ T2911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 526.770962][ T2911] Call Trace: [ 526.774356][ T2911] dump_stack_lvl+0x1e2/0x24b [ 526.779025][ T2911] ? bfq_pos_tree_add_move+0x43e/0x43e [ 526.784474][ T2911] ? selinux_kernfs_init_security+0x1a8/0x760 [ 526.790553][ T2911] dump_stack+0x15/0x17 [ 526.794723][ T2911] should_fail+0x3c0/0x510 [ 526.799180][ T2911] ? __kernfs_new_node+0x99/0x6e0 [ 526.804203][ T2911] __should_failslab+0x9f/0xe0 [ 526.808960][ T2911] should_failslab+0x9/0x20 [ 526.813446][ T2911] __kmalloc_track_caller+0x5f/0x350 [ 526.818729][ T2911] kstrdup_const+0x55/0x90 [ 526.823213][ T2911] __kernfs_new_node+0x99/0x6e0 [ 526.828047][ T2911] ? is_module_text_address+0xe1/0x140 [ 526.833492][ T2911] ? kernfs_new_node+0x170/0x170 [ 526.838427][ T2911] ? ptr_to_hashval+0x60/0x60 [ 526.843159][ T2911] ? mutex_lock+0xb2/0x1e0 [ 526.847589][ T2911] ? snprintf+0xd6/0x120 [ 526.851848][ T2911] ? mutex_unlock+0x29/0xf0 [ 526.856389][ T2911] kernfs_new_node+0x97/0x170 [ 526.861140][ T2911] __kernfs_create_file+0x4a/0x270 [ 526.866232][ T2911] cgroup_addrm_files+0xab8/0xfe0 [ 526.871235][ T2911] ? ____kasan_kmalloc+0xdc/0x110 [ 526.876331][ T2911] ? __kasan_kmalloc+0x9/0x10 [ 526.880988][ T2911] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 526.886524][ T2911] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 526.892664][ T2911] ? delete_node+0x759/0x7b0 [ 526.897241][ T2911] ? __kasan_check_read+0x11/0x20 [ 526.902247][ T2911] ? idr_replace+0x1c4/0x230 [ 526.906817][ T2911] ? idr_get_next+0x4b0/0x4b0 [ 526.911471][ T2911] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 526.916563][ T2911] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 526.921830][ T2911] css_populate_dir+0x137/0x370 [ 526.926665][ T2911] cgroup_apply_control_enable+0x8b9/0x12f0 [ 526.932725][ T2911] cgroup_apply_control+0x8e/0x7e0 [ 526.937911][ T2911] ? css_next_child+0x160/0x160 [ 526.942930][ T2911] ? stack_trace_save+0x12d/0x1f0 [ 526.948021][ T2911] ? io_schedule+0x120/0x120 [ 526.952607][ T2911] ? kernfs_fop_write_iter+0x15e/0x410 [ 526.958065][ T2911] ? __kasan_check_write+0x14/0x20 [ 526.963174][ T2911] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 526.968549][ T2911] cgroup_subtree_control_write+0xd19/0x1310 [ 526.974610][ T2911] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 526.980578][ T2911] ? __kasan_check_write+0x14/0x20 [ 526.985675][ T2911] ? _copy_from_iter+0x3fb/0xd60 [ 526.990593][ T2911] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 526.996563][ T2911] cgroup_file_write+0x28e/0x590 [ 527.001573][ T2911] ? cgroup_seqfile_stop+0xc0/0xc0 [ 527.006676][ T2911] ? mutex_trylock+0x180/0x180 [ 527.011449][ T2911] ? __kasan_check_write+0x14/0x20 [ 527.016570][ T2911] kernfs_fop_write_iter+0x2d0/0x410 [ 527.021846][ T2911] ? cgroup_seqfile_stop+0xc0/0xc0 [ 527.026942][ T2911] vfs_write+0xc4a/0xf80 [ 527.031170][ T2911] ? slab_free_freelist_hook+0xcc/0x1a0 [ 527.036710][ T2911] ? kernel_write+0x420/0x420 [ 527.041397][ T2911] ? do_sys_openat2+0x397/0x470 [ 527.046350][ T2911] ? __kasan_check_read+0x11/0x20 [ 527.051446][ T2911] ? __fdget_pos+0x27e/0x310 [ 527.056123][ T2911] ksys_write+0x198/0x2c0 [ 527.060502][ T2911] ? __ia32_sys_read+0x90/0x90 [ 527.065250][ T2911] ? debug_smp_processor_id+0x17/0x20 [ 527.070597][ T2911] __x64_sys_write+0x7b/0x90 [ 527.075245][ T2911] do_syscall_64+0x34/0x70 [ 527.079655][ T2911] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 527.085522][ T2911] RIP: 0033:0x7f48883727a9 [ 527.089918][ T2911] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 527.109503][ T2911] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 527.118089][ T2911] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 527.126046][ T2911] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 527.134102][ T2911] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 527.142053][ T2911] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 527.150093][ T2911] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002b [ 527.159124][ T2911] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 527.197164][ T2913] FAULT_INJECTION: forcing a failure. [ 527.197164][ T2913] name failslab, interval 1, probability 0, space 0, times 0 [ 527.210033][ T2913] CPU: 1 PID: 2913 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 527.220431][ T2913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 527.230466][ T2913] Call Trace: [ 527.233752][ T2913] dump_stack_lvl+0x1e2/0x24b [ 527.238754][ T2913] ? bfq_pos_tree_add_move+0x43e/0x43e [ 527.244187][ T2913] ? selinux_kernfs_init_security+0x1a8/0x760 [ 527.250233][ T2913] dump_stack+0x15/0x17 [ 527.254375][ T2913] should_fail+0x3c0/0x510 [ 527.258790][ T2913] ? __kernfs_new_node+0x99/0x6e0 [ 527.263791][ T2913] __should_failslab+0x9f/0xe0 [ 527.268549][ T2913] should_failslab+0x9/0x20 [ 527.273024][ T2913] __kmalloc_track_caller+0x5f/0x350 [ 527.278371][ T2913] kstrdup_const+0x55/0x90 [ 527.282760][ T2913] __kernfs_new_node+0x99/0x6e0 [ 527.287700][ T2913] ? is_module_text_address+0xe1/0x140 [ 527.293148][ T2913] ? kernfs_new_node+0x170/0x170 [ 527.298059][ T2913] ? ptr_to_hashval+0x60/0x60 [ 527.302770][ T2913] ? mutex_lock+0xb2/0x1e0 [ 527.307176][ T2913] ? snprintf+0xd6/0x120 [ 527.311390][ T2913] ? mutex_unlock+0x29/0xf0 [ 527.315866][ T2913] kernfs_new_node+0x97/0x170 [ 527.320611][ T2913] __kernfs_create_file+0x4a/0x270 [ 527.325699][ T2913] cgroup_addrm_files+0xab8/0xfe0 [ 527.330707][ T2913] ? ____kasan_kmalloc+0xdc/0x110 [ 527.335711][ T2913] ? __kasan_kmalloc+0x9/0x10 [ 527.340366][ T2913] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 527.346151][ T2913] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 527.352284][ T2913] ? delete_node+0x759/0x7b0 [ 527.356853][ T2913] ? __kasan_check_read+0x11/0x20 [ 527.361866][ T2913] ? idr_replace+0x1c4/0x230 [ 527.366449][ T2913] ? idr_get_next+0x4b0/0x4b0 [ 527.371152][ T2913] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 527.376255][ T2913] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 527.381457][ T2913] css_populate_dir+0x137/0x370 [ 527.386299][ T2913] cgroup_apply_control_enable+0x8b9/0x12f0 [ 527.392179][ T2913] cgroup_apply_control+0x8e/0x7e0 [ 527.397358][ T2913] ? css_next_child+0x160/0x160 [ 527.402186][ T2913] ? stack_trace_save+0x12d/0x1f0 [ 527.407190][ T2913] ? io_schedule+0x120/0x120 [ 527.411783][ T2913] ? kernfs_fop_write_iter+0x15e/0x410 [ 527.417514][ T2913] ? __kasan_check_write+0x14/0x20 [ 527.422630][ T2913] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 527.428164][ T2913] cgroup_subtree_control_write+0xd19/0x1310 [ 527.434138][ T2913] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 527.440098][ T2913] ? __kasan_check_write+0x14/0x20 [ 527.445204][ T2913] ? _copy_from_iter+0x3fb/0xd60 [ 527.450243][ T2913] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 527.456311][ T2913] cgroup_file_write+0x28e/0x590 [ 527.461514][ T2913] ? cgroup_seqfile_stop+0xc0/0xc0 [ 527.466736][ T2913] ? mutex_trylock+0x180/0x180 [ 527.471494][ T2913] ? __kasan_check_write+0x14/0x20 [ 527.477370][ T2913] kernfs_fop_write_iter+0x2d0/0x410 [ 527.482638][ T2913] ? cgroup_seqfile_stop+0xc0/0xc0 [ 527.487743][ T2913] vfs_write+0xc4a/0xf80 [ 527.491978][ T2913] ? slab_free_freelist_hook+0xcc/0x1a0 [ 527.497511][ T2913] ? kernel_write+0x420/0x420 [ 527.502165][ T2913] ? do_sys_openat2+0x397/0x470 [ 527.507001][ T2913] ? __kasan_check_read+0x11/0x20 [ 527.512177][ T2913] ? __fdget_pos+0x27e/0x310 [ 527.516748][ T2913] ksys_write+0x198/0x2c0 [ 527.521054][ T2913] ? __ia32_sys_read+0x90/0x90 [ 527.525804][ T2913] ? debug_smp_processor_id+0x17/0x20 [ 527.531170][ T2913] __x64_sys_write+0x7b/0x90 [ 527.535895][ T2913] do_syscall_64+0x34/0x70 [ 527.540292][ T2913] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 527.546161][ T2913] RIP: 0033:0x7f48883727a9 [ 527.550577][ T2913] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 527.570161][ T2913] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 527.578565][ T2913] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 527.586550][ T2913] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 527.594533][ T2913] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 527.602575][ T2913] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 527.610611][ T2913] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002e [ 527.618808][ T2913] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 527.657213][ T2922] FAULT_INJECTION: forcing a failure. [ 527.657213][ T2922] name failslab, interval 1, probability 0, space 0, times 0 [ 527.670804][ T2922] CPU: 1 PID: 2922 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 527.681196][ T2922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 527.691330][ T2922] Call Trace: [ 527.694637][ T2922] dump_stack_lvl+0x1e2/0x24b [ 527.699306][ T2922] ? bfq_pos_tree_add_move+0x43e/0x43e [ 527.704757][ T2922] ? selinux_kernfs_init_security+0x1a8/0x760 [ 527.710890][ T2922] dump_stack+0x15/0x17 [ 527.715024][ T2922] should_fail+0x3c0/0x510 [ 527.719418][ T2922] ? __kernfs_new_node+0x99/0x6e0 [ 527.724595][ T2922] __should_failslab+0x9f/0xe0 [ 527.729339][ T2922] should_failslab+0x9/0x20 [ 527.733835][ T2922] __kmalloc_track_caller+0x5f/0x350 [ 527.739102][ T2922] kstrdup_const+0x55/0x90 [ 527.743498][ T2922] __kernfs_new_node+0x99/0x6e0 [ 527.748350][ T2922] ? is_module_text_address+0xe1/0x140 [ 527.753809][ T2922] ? kernfs_new_node+0x170/0x170 [ 527.758828][ T2922] ? ptr_to_hashval+0x60/0x60 [ 527.763522][ T2922] ? arch_stack_walk+0xf8/0x140 [ 527.768438][ T2922] ? snprintf+0xd6/0x120 [ 527.772828][ T2922] kernfs_new_node+0x97/0x170 [ 527.777740][ T2922] __kernfs_create_file+0x4a/0x270 [ 527.783072][ T2922] cgroup_addrm_files+0xab8/0xfe0 [ 527.788096][ T2922] ? ____kasan_kmalloc+0xdc/0x110 [ 527.793407][ T2922] ? __kasan_kmalloc+0x9/0x10 [ 527.798172][ T2922] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 527.803905][ T2922] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 527.810181][ T2922] ? delete_node+0x759/0x7b0 [ 527.814951][ T2922] ? __kasan_check_read+0x11/0x20 [ 527.820028][ T2922] ? delete_node+0x759/0x7b0 [ 527.824646][ T2922] ? __kasan_check_write+0x14/0x20 [ 527.829862][ T2922] ? idr_replace+0x1c4/0x230 [ 527.834456][ T2922] ? idr_get_next+0x4b0/0x4b0 [ 527.839117][ T2922] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 527.844470][ T2922] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 527.849853][ T2922] css_populate_dir+0x137/0x370 [ 527.854716][ T2922] cgroup_apply_control_enable+0x8b9/0x12f0 [ 527.860612][ T2922] cgroup_apply_control+0x8e/0x7e0 [ 527.865719][ T2922] ? css_next_child+0x160/0x160 [ 527.870557][ T2922] ? stack_trace_save+0x12d/0x1f0 [ 527.875563][ T2922] ? io_schedule+0x120/0x120 [ 527.880134][ T2922] ? kernfs_fop_write_iter+0x15e/0x410 [ 527.885573][ T2922] ? __kasan_check_write+0x14/0x20 [ 527.890661][ T2922] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 527.895923][ T2922] cgroup_subtree_control_write+0xd19/0x1310 [ 527.901882][ T2922] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 527.907839][ T2922] ? __kasan_check_write+0x14/0x20 [ 527.915071][ T2922] ? _copy_from_iter+0x3fb/0xd60 [ 527.920014][ T2922] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 527.925983][ T2922] cgroup_file_write+0x28e/0x590 [ 527.930915][ T2922] ? cgroup_seqfile_stop+0xc0/0xc0 [ 527.936009][ T2922] ? mutex_trylock+0x180/0x180 [ 527.940761][ T2922] ? __kasan_check_write+0x14/0x20 [ 527.945847][ T2922] kernfs_fop_write_iter+0x2d0/0x410 [ 527.951108][ T2922] ? cgroup_seqfile_stop+0xc0/0xc0 [ 527.956225][ T2922] vfs_write+0xc4a/0xf80 [ 527.960618][ T2922] ? slab_free_freelist_hook+0xcc/0x1a0 [ 527.966138][ T2922] ? kernel_write+0x420/0x420 [ 527.970887][ T2922] ? do_sys_openat2+0x397/0x470 [ 527.975714][ T2922] ? __kasan_check_read+0x11/0x20 [ 527.980713][ T2922] ? __fdget_pos+0x27e/0x310 [ 527.985279][ T2922] ksys_write+0x198/0x2c0 [ 527.989586][ T2922] ? __ia32_sys_read+0x90/0x90 [ 527.994412][ T2922] ? debug_smp_processor_id+0x17/0x20 [ 527.999779][ T2922] __x64_sys_write+0x7b/0x90 [ 528.004343][ T2922] do_syscall_64+0x34/0x70 [ 528.008735][ T2922] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 528.014631][ T2922] RIP: 0033:0x7f48883727a9 [ 528.019051][ T2922] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 528.038735][ T2922] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 528.047352][ T2922] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 528.057156][ T2922] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 528.065114][ T2922] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 528.073239][ T2922] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 528.081526][ T2922] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003b [ 528.090006][ T2922] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 528.127068][ T2924] FAULT_INJECTION: forcing a failure. [ 528.127068][ T2924] name failslab, interval 1, probability 0, space 0, times 0 [ 528.140034][ T2924] CPU: 0 PID: 2924 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 528.150559][ T2924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 528.160703][ T2924] Call Trace: [ 528.163989][ T2924] dump_stack_lvl+0x1e2/0x24b [ 528.168751][ T2924] ? bfq_pos_tree_add_move+0x43e/0x43e [ 528.174194][ T2924] ? selinux_kernfs_init_security+0x1a8/0x760 [ 528.180594][ T2924] dump_stack+0x15/0x17 [ 528.184747][ T2924] should_fail+0x3c0/0x510 [ 528.189164][ T2924] ? __kernfs_new_node+0x99/0x6e0 [ 528.194274][ T2924] __should_failslab+0x9f/0xe0 [ 528.199029][ T2924] should_failslab+0x9/0x20 [ 528.203515][ T2924] __kmalloc_track_caller+0x5f/0x350 [ 528.208800][ T2924] kstrdup_const+0x55/0x90 [ 528.213196][ T2924] __kernfs_new_node+0x99/0x6e0 [ 528.218039][ T2924] ? is_module_text_address+0xe1/0x140 [ 528.223683][ T2924] ? kernfs_new_node+0x170/0x170 [ 528.228798][ T2924] ? ptr_to_hashval+0x60/0x60 [ 528.233549][ T2924] ? mutex_lock+0xb2/0x1e0 [ 528.237948][ T2924] ? snprintf+0xd6/0x120 [ 528.242195][ T2924] ? mutex_unlock+0x29/0xf0 [ 528.246768][ T2924] kernfs_new_node+0x97/0x170 [ 528.251534][ T2924] __kernfs_create_file+0x4a/0x270 [ 528.256719][ T2924] cgroup_addrm_files+0xab8/0xfe0 [ 528.262016][ T2924] ? ____kasan_kmalloc+0xdc/0x110 [ 528.267037][ T2924] ? __kasan_kmalloc+0x9/0x10 [ 528.271880][ T2924] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 528.277476][ T2924] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 528.283621][ T2924] ? delete_node+0x759/0x7b0 [ 528.288304][ T2924] ? __kasan_check_read+0x11/0x20 [ 528.293317][ T2924] ? idr_replace+0x1c4/0x230 [ 528.297885][ T2924] ? idr_get_next+0x4b0/0x4b0 [ 528.302642][ T2924] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 528.307662][ T2924] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 528.312931][ T2924] css_populate_dir+0x137/0x370 [ 528.317773][ T2924] cgroup_apply_control_enable+0x8b9/0x12f0 [ 528.323650][ T2924] cgroup_apply_control+0x8e/0x7e0 [ 528.328739][ T2924] ? css_next_child+0x160/0x160 [ 528.333733][ T2924] ? stack_trace_save+0x12d/0x1f0 [ 528.338919][ T2924] ? io_schedule+0x120/0x120 [ 528.343597][ T2924] ? kernfs_fop_write_iter+0x15e/0x410 [ 528.349049][ T2924] ? __kasan_check_write+0x14/0x20 [ 528.354243][ T2924] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 528.359513][ T2924] cgroup_subtree_control_write+0xd19/0x1310 [ 528.365564][ T2924] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 528.371627][ T2924] ? __kasan_check_write+0x14/0x20 [ 528.376852][ T2924] ? _copy_from_iter+0x3fb/0xd60 [ 528.382013][ T2924] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 528.388858][ T2924] cgroup_file_write+0x28e/0x590 [ 528.393958][ T2924] ? cgroup_seqfile_stop+0xc0/0xc0 [ 528.399055][ T2924] ? mutex_trylock+0x180/0x180 [ 528.403801][ T2924] ? __kasan_check_write+0x14/0x20 [ 528.408927][ T2924] kernfs_fop_write_iter+0x2d0/0x410 [ 528.414289][ T2924] ? cgroup_seqfile_stop+0xc0/0xc0 [ 528.419400][ T2924] vfs_write+0xc4a/0xf80 [ 528.423638][ T2924] ? slab_free_freelist_hook+0xcc/0x1a0 [ 528.429178][ T2924] ? kernel_write+0x420/0x420 [ 528.433845][ T2924] ? do_sys_openat2+0x397/0x470 [ 528.438690][ T2924] ? __kasan_check_read+0x11/0x20 [ 528.443689][ T2924] ? __fdget_pos+0x27e/0x310 [ 528.448296][ T2924] ksys_write+0x198/0x2c0 [ 528.452602][ T2924] ? __ia32_sys_read+0x90/0x90 [ 528.457347][ T2924] ? debug_smp_processor_id+0x17/0x20 [ 528.462717][ T2924] __x64_sys_write+0x7b/0x90 [ 528.467416][ T2924] do_syscall_64+0x34/0x70 [ 528.471824][ T2924] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 528.477703][ T2924] RIP: 0033:0x7f48883727a9 [ 528.482113][ T2924] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 528.502222][ T2924] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 528.511071][ T2924] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 528.519360][ T2924] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 528.527445][ T2924] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 528.535567][ T2924] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 528.543715][ T2924] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002f [ 528.551921][ T2924] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 528.597313][ T2923] FAULT_INJECTION: forcing a failure. [ 528.597313][ T2923] name failslab, interval 1, probability 0, space 0, times 0 [ 528.610095][ T2923] CPU: 0 PID: 2923 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 528.620718][ T2923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 528.631344][ T2923] Call Trace: [ 528.634640][ T2923] dump_stack_lvl+0x1e2/0x24b [ 528.639408][ T2923] ? bfq_pos_tree_add_move+0x43e/0x43e [ 528.644877][ T2923] ? selinux_kernfs_init_security+0x1a8/0x760 [ 528.650945][ T2923] dump_stack+0x15/0x17 [ 528.655082][ T2923] should_fail+0x3c0/0x510 [ 528.659612][ T2923] ? __kernfs_new_node+0x99/0x6e0 [ 528.664760][ T2923] __should_failslab+0x9f/0xe0 [ 528.669669][ T2923] should_failslab+0x9/0x20 [ 528.674217][ T2923] __kmalloc_track_caller+0x5f/0x350 [ 528.679584][ T2923] kstrdup_const+0x55/0x90 [ 528.683980][ T2923] __kernfs_new_node+0x99/0x6e0 [ 528.688817][ T2923] ? is_module_text_address+0xe1/0x140 [ 528.694267][ T2923] ? kernfs_new_node+0x170/0x170 [ 528.699227][ T2923] ? ptr_to_hashval+0x60/0x60 [ 528.703888][ T2923] ? mutex_lock+0xb2/0x1e0 [ 528.708328][ T2923] ? snprintf+0xd6/0x120 [ 528.712799][ T2923] ? mutex_unlock+0x29/0xf0 [ 528.717323][ T2923] kernfs_new_node+0x97/0x170 [ 528.722255][ T2923] __kernfs_create_file+0x4a/0x270 [ 528.727350][ T2923] cgroup_addrm_files+0xab8/0xfe0 [ 528.732363][ T2923] ? ____kasan_kmalloc+0xdc/0x110 [ 528.737381][ T2923] ? __kasan_kmalloc+0x9/0x10 [ 528.742043][ T2923] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 528.747809][ T2923] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 528.754049][ T2923] ? delete_node+0x759/0x7b0 [ 528.758630][ T2923] ? __kasan_check_read+0x11/0x20 [ 528.763906][ T2923] ? idr_replace+0x1c4/0x230 [ 528.768492][ T2923] ? idr_get_next+0x4b0/0x4b0 [ 528.773149][ T2923] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 528.778167][ T2923] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 528.783385][ T2923] css_populate_dir+0x137/0x370 [ 528.788248][ T2923] cgroup_apply_control_enable+0x8b9/0x12f0 [ 528.794129][ T2923] cgroup_apply_control+0x8e/0x7e0 [ 528.799411][ T2923] ? css_next_child+0x160/0x160 [ 528.804281][ T2923] ? stack_trace_save+0x12d/0x1f0 [ 528.809290][ T2923] ? io_schedule+0x120/0x120 [ 528.813867][ T2923] ? kernfs_fop_write_iter+0x15e/0x410 [ 528.819503][ T2923] ? __kasan_check_write+0x14/0x20 [ 528.824603][ T2923] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 528.829868][ T2923] cgroup_subtree_control_write+0xd19/0x1310 [ 528.835934][ T2923] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 528.841900][ T2923] ? __kasan_check_write+0x14/0x20 [ 528.847014][ T2923] ? _copy_from_iter+0x3fb/0xd60 [ 528.852023][ T2923] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 528.857984][ T2923] cgroup_file_write+0x28e/0x590 [ 528.862931][ T2923] ? cgroup_seqfile_stop+0xc0/0xc0 [ 528.868226][ T2923] ? mutex_trylock+0x180/0x180 [ 528.873110][ T2923] ? __kasan_check_write+0x14/0x20 [ 528.878221][ T2923] kernfs_fop_write_iter+0x2d0/0x410 [ 528.883602][ T2923] ? cgroup_seqfile_stop+0xc0/0xc0 [ 528.888696][ T2923] vfs_write+0xc4a/0xf80 [ 528.892992][ T2923] ? slab_free_freelist_hook+0xcc/0x1a0 [ 528.898515][ T2923] ? kernel_write+0x420/0x420 [ 528.903172][ T2923] ? do_sys_openat2+0x397/0x470 [ 528.908010][ T2923] ? __kasan_check_read+0x11/0x20 [ 528.913008][ T2923] ? __fdget_pos+0x27e/0x310 [ 528.917579][ T2923] ksys_write+0x198/0x2c0 [ 528.921970][ T2923] ? __kasan_check_write+0x14/0x20 [ 528.927072][ T2923] ? __ia32_sys_read+0x90/0x90 [ 528.931824][ T2923] ? debug_smp_processor_id+0x17/0x20 [ 528.937261][ T2923] __x64_sys_write+0x7b/0x90 [ 528.941951][ T2923] do_syscall_64+0x34/0x70 [ 528.946560][ T2923] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 528.952531][ T2923] RIP: 0033:0x7f48883727a9 [ 528.957110][ T2923] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 528.976723][ T2923] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 528.985149][ T2923] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 528.993193][ T2923] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 529.001148][ T2923] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 529.009207][ T2923] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 529.017190][ T2923] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002c [ 529.025285][ T2923] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 529.057126][ T2925] FAULT_INJECTION: forcing a failure. [ 529.057126][ T2925] name failslab, interval 1, probability 0, space 0, times 0 [ 529.070174][ T2925] CPU: 0 PID: 2925 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 529.080660][ T2925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 529.090711][ T2925] Call Trace: [ 529.094007][ T2925] dump_stack_lvl+0x1e2/0x24b [ 529.098689][ T2925] ? panic+0x7d7/0x7d7 [ 529.102755][ T2925] ? bfq_pos_tree_add_move+0x43e/0x43e [ 529.108211][ T2925] ? selinux_kernfs_init_security+0x1a8/0x760 [ 529.114290][ T2925] dump_stack+0x15/0x17 [ 529.118443][ T2925] should_fail+0x3c0/0x510 [ 529.122872][ T2925] __should_failslab+0x9f/0xe0 [ 529.127636][ T2925] should_failslab+0x9/0x20 [ 529.132137][ T2925] kmem_cache_alloc+0x3f/0x300 [ 529.136973][ T2925] ? __kernfs_new_node+0xdb/0x6e0 [ 529.142013][ T2925] __kernfs_new_node+0xdb/0x6e0 [ 529.146854][ T2925] ? is_module_text_address+0xe1/0x140 [ 529.152417][ T2925] ? kernfs_new_node+0x170/0x170 [ 529.157613][ T2925] ? ptr_to_hashval+0x60/0x60 [ 529.162292][ T2925] ? arch_stack_walk+0xf8/0x140 [ 529.167133][ T2925] ? snprintf+0xd6/0x120 [ 529.171442][ T2925] kernfs_new_node+0x97/0x170 [ 529.176111][ T2925] __kernfs_create_file+0x4a/0x270 [ 529.181203][ T2925] cgroup_addrm_files+0xab8/0xfe0 [ 529.186301][ T2925] ? ____kasan_kmalloc+0xdc/0x110 [ 529.191301][ T2925] ? __kasan_kmalloc+0x9/0x10 [ 529.195980][ T2925] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 529.201627][ T2925] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 529.207798][ T2925] ? delete_node+0x759/0x7b0 [ 529.212663][ T2925] ? __kasan_check_read+0x11/0x20 [ 529.217701][ T2925] ? delete_node+0x759/0x7b0 [ 529.222306][ T2925] ? __kasan_check_write+0x14/0x20 [ 529.227490][ T2925] ? idr_replace+0x1c4/0x230 [ 529.232165][ T2925] ? idr_get_next+0x4b0/0x4b0 [ 529.236827][ T2925] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 529.241861][ T2925] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 529.247088][ T2925] css_populate_dir+0x137/0x370 [ 529.251930][ T2925] cgroup_apply_control_enable+0x8b9/0x12f0 [ 529.257808][ T2925] cgroup_apply_control+0x8e/0x7e0 [ 529.263077][ T2925] ? css_next_child+0x160/0x160 [ 529.268080][ T2925] ? stack_trace_save+0x12d/0x1f0 [ 529.273090][ T2925] ? io_schedule+0x120/0x120 [ 529.277724][ T2925] ? kernfs_fop_write_iter+0x15e/0x410 [ 529.283160][ T2925] ? __kasan_check_write+0x14/0x20 [ 529.288335][ T2925] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 529.293609][ T2925] cgroup_subtree_control_write+0xd19/0x1310 [ 529.299582][ T2925] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 529.305628][ T2925] ? __kasan_check_write+0x14/0x20 [ 529.310718][ T2925] ? _copy_from_iter+0x3fb/0xd60 [ 529.315655][ T2925] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 529.321614][ T2925] cgroup_file_write+0x28e/0x590 [ 529.326530][ T2925] ? cgroup_seqfile_stop+0xc0/0xc0 [ 529.331715][ T2925] ? mutex_trylock+0x180/0x180 [ 529.336546][ T2925] ? __kasan_check_write+0x14/0x20 [ 529.341657][ T2925] kernfs_fop_write_iter+0x2d0/0x410 [ 529.347095][ T2925] ? cgroup_seqfile_stop+0xc0/0xc0 [ 529.352181][ T2925] vfs_write+0xc4a/0xf80 [ 529.356418][ T2925] ? slab_free_freelist_hook+0xcc/0x1a0 [ 529.361955][ T2925] ? kernel_write+0x420/0x420 [ 529.366615][ T2925] ? do_sys_openat2+0x397/0x470 [ 529.371497][ T2925] ? __kasan_check_read+0x11/0x20 [ 529.376536][ T2925] ? __fdget_pos+0x27e/0x310 [ 529.381111][ T2925] ksys_write+0x198/0x2c0 [ 529.385424][ T2925] ? __ia32_sys_read+0x90/0x90 [ 529.390174][ T2925] ? debug_smp_processor_id+0x17/0x20 [ 529.395528][ T2925] __x64_sys_write+0x7b/0x90 [ 529.400109][ T2925] do_syscall_64+0x34/0x70 [ 529.404594][ T2925] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 529.410466][ T2925] RIP: 0033:0x7f48883727a9 [ 529.414872][ T2925] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 529.434600][ T2925] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 529.443006][ T2925] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 529.450972][ T2925] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 529.459026][ T2925] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 529.467006][ T2925] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 529.475144][ T2925] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003c [ 529.483391][ T2925] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 529.517238][ T2915] FAULT_INJECTION: forcing a failure. [ 529.517238][ T2915] name failslab, interval 1, probability 0, space 0, times 0 [ 529.530183][ T2915] CPU: 0 PID: 2915 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 529.540765][ T2915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 529.550807][ T2915] Call Trace: [ 529.554205][ T2915] dump_stack_lvl+0x1e2/0x24b [ 529.558890][ T2915] ? bfq_pos_tree_add_move+0x43e/0x43e [ 529.564343][ T2915] ? selinux_kernfs_init_security+0x1a8/0x760 [ 529.570431][ T2915] dump_stack+0x15/0x17 [ 529.574569][ T2915] should_fail+0x3c0/0x510 [ 529.578992][ T2915] ? __kernfs_new_node+0x99/0x6e0 [ 529.584100][ T2915] __should_failslab+0x9f/0xe0 [ 529.588917][ T2915] should_failslab+0x9/0x20 [ 529.593404][ T2915] __kmalloc_track_caller+0x5f/0x350 [ 529.598843][ T2915] kstrdup_const+0x55/0x90 [ 529.603283][ T2915] __kernfs_new_node+0x99/0x6e0 [ 529.608248][ T2915] ? is_module_text_address+0xe1/0x140 [ 529.613709][ T2915] ? kernfs_new_node+0x170/0x170 [ 529.618806][ T2915] ? ptr_to_hashval+0x60/0x60 [ 529.623476][ T2915] ? arch_stack_walk+0xf8/0x140 [ 529.628309][ T2915] ? snprintf+0xd6/0x120 [ 529.632552][ T2915] kernfs_new_node+0x97/0x170 [ 529.637280][ T2915] __kernfs_create_file+0x4a/0x270 [ 529.642395][ T2915] cgroup_addrm_files+0xab8/0xfe0 [ 529.647492][ T2915] ? ____kasan_kmalloc+0xdc/0x110 [ 529.653042][ T2915] ? __kasan_kmalloc+0x9/0x10 [ 529.657725][ T2915] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 529.663261][ T2915] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 529.669638][ T2915] ? delete_node+0x759/0x7b0 [ 529.674217][ T2915] ? __kasan_check_read+0x11/0x20 [ 529.679589][ T2915] ? delete_node+0x759/0x7b0 [ 529.684162][ T2915] ? __kasan_check_write+0x14/0x20 [ 529.689468][ T2915] ? idr_replace+0x1c4/0x230 [ 529.694058][ T2915] ? idr_get_next+0x4b0/0x4b0 [ 529.698734][ T2915] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 529.703957][ T2915] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 529.709156][ T2915] css_populate_dir+0x137/0x370 [ 529.714088][ T2915] cgroup_apply_control_enable+0x8b9/0x12f0 [ 529.720012][ T2915] cgroup_apply_control+0x8e/0x7e0 [ 529.725142][ T2915] ? css_next_child+0x160/0x160 [ 529.729978][ T2915] ? stack_trace_save+0x12d/0x1f0 [ 529.735066][ T2915] ? io_schedule+0x120/0x120 [ 529.739748][ T2915] ? kernfs_fop_write_iter+0x15e/0x410 [ 529.745184][ T2915] ? __kasan_check_write+0x14/0x20 [ 529.750281][ T2915] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 529.755553][ T2915] cgroup_subtree_control_write+0xd19/0x1310 [ 529.761514][ T2915] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 529.767486][ T2915] ? __kasan_check_write+0x14/0x20 [ 529.772597][ T2915] ? _copy_from_iter+0x3fb/0xd60 [ 529.777516][ T2915] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 529.783480][ T2915] cgroup_file_write+0x28e/0x590 [ 529.788399][ T2915] ? cgroup_seqfile_stop+0xc0/0xc0 [ 529.793598][ T2915] ? mutex_trylock+0x180/0x180 [ 529.798361][ T2915] ? __kasan_check_write+0x14/0x20 [ 529.803465][ T2915] kernfs_fop_write_iter+0x2d0/0x410 [ 529.808825][ T2915] ? cgroup_seqfile_stop+0xc0/0xc0 [ 529.813935][ T2915] vfs_write+0xc4a/0xf80 [ 529.818419][ T2915] ? slab_free_freelist_hook+0xcc/0x1a0 [ 529.823973][ T2915] ? kernel_write+0x420/0x420 [ 529.828628][ T2915] ? do_sys_openat2+0x397/0x470 [ 529.833457][ T2915] ? __kasan_check_read+0x11/0x20 [ 529.838486][ T2915] ? __fdget_pos+0x27e/0x310 [ 529.843214][ T2915] ksys_write+0x198/0x2c0 [ 529.847582][ T2915] ? __ia32_sys_read+0x90/0x90 [ 529.852331][ T2915] ? debug_smp_processor_id+0x17/0x20 [ 529.857707][ T2915] __x64_sys_write+0x7b/0x90 [ 529.862278][ T2915] do_syscall_64+0x34/0x70 [ 529.866696][ T2915] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 529.872581][ T2915] RIP: 0033:0x7f48883727a9 [ 529.876991][ T2915] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 529.896591][ T2915] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 529.905029][ T2915] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 529.913271][ T2915] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 529.921279][ T2915] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 529.929389][ T2915] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 529.937354][ T2915] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002f [ 529.945536][ T2915] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 529.977337][ T2929] FAULT_INJECTION: forcing a failure. [ 529.977337][ T2929] name failslab, interval 1, probability 0, space 0, times 0 [ 529.990075][ T2929] CPU: 0 PID: 2929 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 530.000655][ T2929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 530.010789][ T2929] Call Trace: [ 530.014162][ T2929] dump_stack_lvl+0x1e2/0x24b [ 530.018823][ T2929] ? panic+0x7d7/0x7d7 [ 530.022869][ T2929] ? bfq_pos_tree_add_move+0x43e/0x43e [ 530.028314][ T2929] ? selinux_kernfs_init_security+0x1a8/0x760 [ 530.034371][ T2929] dump_stack+0x15/0x17 [ 530.038506][ T2929] should_fail+0x3c0/0x510 [ 530.043082][ T2929] __should_failslab+0x9f/0xe0 [ 530.047823][ T2929] should_failslab+0x9/0x20 [ 530.052562][ T2929] kmem_cache_alloc+0x3f/0x300 [ 530.057324][ T2929] ? __kernfs_new_node+0xdb/0x6e0 [ 530.062334][ T2929] __kernfs_new_node+0xdb/0x6e0 [ 530.067247][ T2929] ? is_module_text_address+0xe1/0x140 [ 530.072680][ T2929] ? kernfs_new_node+0x170/0x170 [ 530.077600][ T2929] ? ptr_to_hashval+0x60/0x60 [ 530.082270][ T2929] ? arch_stack_walk+0xf8/0x140 [ 530.087100][ T2929] ? snprintf+0xd6/0x120 [ 530.091318][ T2929] kernfs_new_node+0x97/0x170 [ 530.095971][ T2929] __kernfs_create_file+0x4a/0x270 [ 530.101061][ T2929] cgroup_addrm_files+0xab8/0xfe0 [ 530.106070][ T2929] ? ____kasan_kmalloc+0xdc/0x110 [ 530.111069][ T2929] ? __kasan_kmalloc+0x9/0x10 [ 530.115730][ T2929] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 530.121253][ T2929] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 530.127382][ T2929] ? delete_node+0x759/0x7b0 [ 530.131953][ T2929] ? __kasan_check_read+0x11/0x20 [ 530.137037][ T2929] ? delete_node+0x759/0x7b0 [ 530.141795][ T2929] ? __kasan_check_write+0x14/0x20 [ 530.146912][ T2929] ? idr_replace+0x1c4/0x230 [ 530.151475][ T2929] ? idr_get_next+0x4b0/0x4b0 [ 530.156140][ T2929] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 530.161224][ T2929] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 530.166398][ T2929] css_populate_dir+0x137/0x370 [ 530.171223][ T2929] cgroup_apply_control_enable+0x8b9/0x12f0 [ 530.177090][ T2929] cgroup_apply_control+0x8e/0x7e0 [ 530.182178][ T2929] ? css_next_child+0x160/0x160 [ 530.187003][ T2929] ? stack_trace_save+0x12d/0x1f0 [ 530.192001][ T2929] ? io_schedule+0x120/0x120 [ 530.196568][ T2929] ? kernfs_fop_write_iter+0x15e/0x410 [ 530.202001][ T2929] ? __kasan_check_write+0x14/0x20 [ 530.207277][ T2929] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 530.212639][ T2929] cgroup_subtree_control_write+0xd19/0x1310 [ 530.218599][ T2929] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 530.224561][ T2929] ? __kasan_check_write+0x14/0x20 [ 530.229666][ T2929] ? _copy_from_iter+0x3fb/0xd60 [ 530.234588][ T2929] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 530.240541][ T2929] cgroup_file_write+0x28e/0x590 [ 530.245476][ T2929] ? cgroup_seqfile_stop+0xc0/0xc0 [ 530.250563][ T2929] ? mutex_trylock+0x180/0x180 [ 530.255306][ T2929] ? __kasan_check_write+0x14/0x20 [ 530.260427][ T2929] kernfs_fop_write_iter+0x2d0/0x410 [ 530.265724][ T2929] ? cgroup_seqfile_stop+0xc0/0xc0 [ 530.271127][ T2929] vfs_write+0xc4a/0xf80 [ 530.275528][ T2929] ? slab_free_freelist_hook+0xcc/0x1a0 [ 530.281054][ T2929] ? kernel_write+0x420/0x420 [ 530.285731][ T2929] ? do_sys_openat2+0x397/0x470 [ 530.290588][ T2929] ? __kasan_check_read+0x11/0x20 [ 530.295683][ T2929] ? __fdget_pos+0x27e/0x310 [ 530.300351][ T2929] ksys_write+0x198/0x2c0 [ 530.304746][ T2929] ? __kasan_check_write+0x14/0x20 [ 530.309847][ T2929] ? __ia32_sys_read+0x90/0x90 [ 530.314596][ T2929] ? debug_smp_processor_id+0x17/0x20 [ 530.319943][ T2929] __x64_sys_write+0x7b/0x90 [ 530.324568][ T2929] do_syscall_64+0x34/0x70 [ 530.328984][ T2929] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 530.335112][ T2929] RIP: 0033:0x7f48883727a9 [ 530.339766][ T2929] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 530.359617][ T2929] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 530.368007][ T2929] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 530.375952][ T2929] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 530.383898][ T2929] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 530.391983][ T2929] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 530.399960][ T2929] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000030 [ 530.408624][ T2929] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 530.447065][ T2926] FAULT_INJECTION: forcing a failure. [ 530.447065][ T2926] name failslab, interval 1, probability 0, space 0, times 0 [ 530.459832][ T2926] CPU: 0 PID: 2926 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 530.470452][ T2926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 530.480509][ T2926] Call Trace: [ 530.483893][ T2926] dump_stack_lvl+0x1e2/0x24b [ 530.488560][ T2926] ? panic+0x7d7/0x7d7 [ 530.492614][ T2926] ? bfq_pos_tree_add_move+0x43e/0x43e [ 530.498052][ T2926] ? selinux_kernfs_init_security+0x1a8/0x760 [ 530.504191][ T2926] dump_stack+0x15/0x17 [ 530.508348][ T2926] should_fail+0x3c0/0x510 [ 530.512771][ T2926] __should_failslab+0x9f/0xe0 [ 530.517517][ T2926] should_failslab+0x9/0x20 [ 530.522010][ T2926] kmem_cache_alloc+0x3f/0x300 [ 530.526778][ T2926] ? __kernfs_new_node+0xdb/0x6e0 [ 530.531889][ T2926] __kernfs_new_node+0xdb/0x6e0 [ 530.536832][ T2926] ? is_module_text_address+0xe1/0x140 [ 530.542460][ T2926] ? kernfs_new_node+0x170/0x170 [ 530.547568][ T2926] ? ptr_to_hashval+0x60/0x60 [ 530.552670][ T2926] ? arch_stack_walk+0xf8/0x140 [ 530.557501][ T2926] ? snprintf+0xd6/0x120 [ 530.561884][ T2926] kernfs_new_node+0x97/0x170 [ 530.566554][ T2926] __kernfs_create_file+0x4a/0x270 [ 530.571944][ T2926] cgroup_addrm_files+0xab8/0xfe0 [ 530.576961][ T2926] ? ____kasan_kmalloc+0xdc/0x110 [ 530.581969][ T2926] ? __kasan_kmalloc+0x9/0x10 [ 530.586630][ T2926] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 530.592472][ T2926] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 530.598609][ T2926] ? delete_node+0x759/0x7b0 [ 530.603356][ T2926] ? __kasan_check_read+0x11/0x20 [ 530.608358][ T2926] ? delete_node+0x759/0x7b0 [ 530.613019][ T2926] ? __kasan_check_write+0x14/0x20 [ 530.618110][ T2926] ? idr_replace+0x1c4/0x230 [ 530.622678][ T2926] ? idr_get_next+0x4b0/0x4b0 [ 530.627332][ T2926] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 530.632352][ T2926] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 530.637647][ T2926] css_populate_dir+0x137/0x370 [ 530.642501][ T2926] cgroup_apply_control_enable+0x8b9/0x12f0 [ 530.648401][ T2926] cgroup_apply_control+0x8e/0x7e0 [ 530.653528][ T2926] ? css_next_child+0x160/0x160 [ 530.658362][ T2926] ? stack_trace_save+0x12d/0x1f0 [ 530.663371][ T2926] ? io_schedule+0x120/0x120 [ 530.667953][ T2926] ? kernfs_fop_write_iter+0x15e/0x410 [ 530.673412][ T2926] ? __kasan_check_write+0x14/0x20 [ 530.678526][ T2926] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 530.683794][ T2926] cgroup_subtree_control_write+0xd19/0x1310 [ 530.689782][ T2926] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 530.695812][ T2926] ? __kasan_check_write+0x14/0x20 [ 530.700916][ T2926] ? _copy_from_iter+0x3fb/0xd60 [ 530.706115][ T2926] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 530.712656][ T2926] cgroup_file_write+0x28e/0x590 [ 530.717596][ T2926] ? cgroup_seqfile_stop+0xc0/0xc0 [ 530.722688][ T2926] ? mutex_trylock+0x180/0x180 [ 530.727429][ T2926] ? __kasan_check_write+0x14/0x20 [ 530.732516][ T2926] kernfs_fop_write_iter+0x2d0/0x410 [ 530.737777][ T2926] ? cgroup_seqfile_stop+0xc0/0xc0 [ 530.742869][ T2926] vfs_write+0xc4a/0xf80 [ 530.747173][ T2926] ? slab_free_freelist_hook+0xcc/0x1a0 [ 530.752784][ T2926] ? kernel_write+0x420/0x420 [ 530.757441][ T2926] ? do_sys_openat2+0x397/0x470 [ 530.762452][ T2926] ? __kasan_check_read+0x11/0x20 [ 530.767540][ T2926] ? __fdget_pos+0x27e/0x310 [ 530.772117][ T2926] ksys_write+0x198/0x2c0 [ 530.776439][ T2926] ? __ia32_sys_read+0x90/0x90 [ 530.781215][ T2926] ? debug_smp_processor_id+0x17/0x20 [ 530.786573][ T2926] __x64_sys_write+0x7b/0x90 [ 530.791401][ T2926] do_syscall_64+0x34/0x70 [ 530.795811][ T2926] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 530.801693][ T2926] RIP: 0033:0x7f48883727a9 [ 530.806147][ T2926] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 530.825748][ T2926] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 530.834167][ T2926] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 530.842243][ T2926] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 530.850200][ T2926] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 530.858153][ T2926] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 530.866132][ T2926] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000030 [ 530.874368][ T2926] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 530.917626][ T2928] FAULT_INJECTION: forcing a failure. [ 530.917626][ T2928] name failslab, interval 1, probability 0, space 0, times 0 [ 530.930439][ T2928] CPU: 1 PID: 2928 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 530.940854][ T2928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 530.950993][ T2928] Call Trace: [ 530.954271][ T2928] dump_stack_lvl+0x1e2/0x24b [ 530.958973][ T2928] ? panic+0x7d7/0x7d7 [ 530.963069][ T2928] ? bfq_pos_tree_add_move+0x43e/0x43e [ 530.968525][ T2928] ? selinux_kernfs_init_security+0x1a8/0x760 [ 530.974588][ T2928] dump_stack+0x15/0x17 [ 530.978726][ T2928] should_fail+0x3c0/0x510 [ 530.983160][ T2928] __should_failslab+0x9f/0xe0 [ 530.987916][ T2928] should_failslab+0x9/0x20 [ 530.992405][ T2928] kmem_cache_alloc+0x3f/0x300 [ 530.997151][ T2928] ? __kernfs_new_node+0xdb/0x6e0 [ 531.002171][ T2928] __kernfs_new_node+0xdb/0x6e0 [ 531.007179][ T2928] ? is_module_text_address+0xe1/0x140 [ 531.012958][ T2928] ? kernfs_new_node+0x170/0x170 [ 531.017886][ T2928] ? ptr_to_hashval+0x60/0x60 [ 531.022542][ T2928] ? arch_stack_walk+0xf8/0x140 [ 531.027407][ T2928] ? snprintf+0xd6/0x120 [ 531.031899][ T2928] kernfs_new_node+0x97/0x170 [ 531.036871][ T2928] __kernfs_create_file+0x4a/0x270 [ 531.041978][ T2928] cgroup_addrm_files+0xab8/0xfe0 [ 531.047231][ T2928] ? ____kasan_kmalloc+0xdc/0x110 [ 531.052252][ T2928] ? __kasan_kmalloc+0x9/0x10 [ 531.056916][ T2928] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 531.062570][ T2928] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 531.068820][ T2928] ? delete_node+0x759/0x7b0 [ 531.073396][ T2928] ? __kasan_check_read+0x11/0x20 [ 531.078413][ T2928] ? delete_node+0x759/0x7b0 [ 531.083600][ T2928] ? __kasan_check_write+0x14/0x20 [ 531.088955][ T2928] ? idr_replace+0x1c4/0x230 [ 531.093525][ T2928] ? idr_get_next+0x4b0/0x4b0 [ 531.098192][ T2928] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 531.103365][ T2928] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 531.108544][ T2928] css_populate_dir+0x137/0x370 [ 531.113760][ T2928] cgroup_apply_control_enable+0x8b9/0x12f0 [ 531.119650][ T2928] cgroup_apply_control+0x8e/0x7e0 [ 531.124831][ T2928] ? css_next_child+0x160/0x160 [ 531.129665][ T2928] ? io_schedule+0x120/0x120 [ 531.134239][ T2928] ? kernfs_fop_write_iter+0x15e/0x410 [ 531.139935][ T2928] ? __kasan_check_write+0x14/0x20 [ 531.145220][ T2928] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 531.150587][ T2928] cgroup_subtree_control_write+0xd19/0x1310 [ 531.156555][ T2928] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 531.162685][ T2928] ? __kasan_check_write+0x14/0x20 [ 531.167871][ T2928] ? _copy_from_iter+0x3fb/0xd60 [ 531.172964][ T2928] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 531.178919][ T2928] cgroup_file_write+0x28e/0x590 [ 531.183854][ T2928] ? cgroup_seqfile_stop+0xc0/0xc0 [ 531.188950][ T2928] ? mutex_trylock+0x180/0x180 [ 531.193692][ T2928] ? __kasan_check_write+0x14/0x20 [ 531.198786][ T2928] kernfs_fop_write_iter+0x2d0/0x410 [ 531.204049][ T2928] ? cgroup_seqfile_stop+0xc0/0xc0 [ 531.209240][ T2928] vfs_write+0xc4a/0xf80 [ 531.213458][ T2928] ? kernel_write+0x420/0x420 [ 531.218112][ T2928] ? do_sys_openat2+0x397/0x470 [ 531.222939][ T2928] ? __kasan_check_read+0x11/0x20 [ 531.227951][ T2928] ? __fdget_pos+0x27e/0x310 [ 531.232516][ T2928] ksys_write+0x198/0x2c0 [ 531.236830][ T2928] ? __ia32_sys_read+0x90/0x90 [ 531.241599][ T2928] ? debug_smp_processor_id+0x17/0x20 [ 531.247037][ T2928] __x64_sys_write+0x7b/0x90 [ 531.251612][ T2928] do_syscall_64+0x34/0x70 [ 531.256017][ T2928] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 531.261889][ T2928] RIP: 0033:0x7f48883727a9 [ 531.266298][ T2928] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 531.285979][ T2928] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 531.294455][ T2928] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 531.302418][ T2928] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 531.310367][ T2928] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 531.318332][ T2928] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 531.326453][ T2928] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003d [ 531.334663][ T2928] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 531.367050][ T2931] FAULT_INJECTION: forcing a failure. [ 531.367050][ T2931] name failslab, interval 1, probability 0, space 0, times 0 [ 531.379734][ T2931] CPU: 0 PID: 2931 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 531.390148][ T2931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 531.400193][ T2931] Call Trace: [ 531.403482][ T2931] dump_stack_lvl+0x1e2/0x24b [ 531.408270][ T2931] ? panic+0x7d7/0x7d7 [ 531.412327][ T2931] ? bfq_pos_tree_add_move+0x43e/0x43e [ 531.417783][ T2931] ? __irq_exit_rcu+0x41/0x150 [ 531.422556][ T2931] ? irq_exit_rcu+0x9/0x10 [ 531.426972][ T2931] ? sysvec_apic_timer_interrupt+0xcb/0xe0 [ 531.432856][ T2931] dump_stack+0x15/0x17 [ 531.437008][ T2931] should_fail+0x3c0/0x510 [ 531.441426][ T2931] __should_failslab+0x9f/0xe0 [ 531.446322][ T2931] should_failslab+0x9/0x20 [ 531.450834][ T2931] kmem_cache_alloc+0x3f/0x300 [ 531.455589][ T2931] ? __kernfs_new_node+0xdb/0x6e0 [ 531.460599][ T2931] __kernfs_new_node+0xdb/0x6e0 [ 531.465431][ T2931] ? is_module_text_address+0xe1/0x140 [ 531.470887][ T2931] ? kernfs_new_node+0x170/0x170 [ 531.475806][ T2931] ? ptr_to_hashval+0x60/0x60 [ 531.480648][ T2931] ? arch_stack_walk+0xf8/0x140 [ 531.485478][ T2931] ? snprintf+0xd6/0x120 [ 531.489702][ T2931] kernfs_new_node+0x97/0x170 [ 531.494359][ T2931] __kernfs_create_file+0x4a/0x270 [ 531.499555][ T2931] cgroup_addrm_files+0xab8/0xfe0 [ 531.504575][ T2931] ? ____kasan_kmalloc+0xdc/0x110 [ 531.509589][ T2931] ? __kasan_kmalloc+0x9/0x10 [ 531.514554][ T2931] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 531.520208][ T2931] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 531.526362][ T2931] ? delete_node+0x759/0x7b0 [ 531.530959][ T2931] ? __kasan_check_read+0x11/0x20 [ 531.535986][ T2931] ? delete_node+0x759/0x7b0 [ 531.540570][ T2931] ? __kasan_check_write+0x14/0x20 [ 531.545855][ T2931] ? idr_replace+0x1c4/0x230 [ 531.550432][ T2931] ? idr_get_next+0x4b0/0x4b0 [ 531.555112][ T2931] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 531.560250][ T2931] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 531.565435][ T2931] css_populate_dir+0x137/0x370 [ 531.570460][ T2931] cgroup_apply_control_enable+0x8b9/0x12f0 [ 531.576356][ T2931] cgroup_apply_control+0x8e/0x7e0 [ 531.581461][ T2931] ? css_next_child+0x160/0x160 [ 531.586288][ T2931] ? stack_trace_save+0x12d/0x1f0 [ 531.591311][ T2931] ? io_schedule+0x120/0x120 [ 531.595880][ T2931] ? kernfs_fop_write_iter+0x15e/0x410 [ 531.601496][ T2931] ? __kasan_check_write+0x14/0x20 [ 531.606588][ T2931] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 531.611855][ T2931] cgroup_subtree_control_write+0xd19/0x1310 [ 531.617838][ T2931] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 531.623809][ T2931] ? __kasan_check_write+0x14/0x20 [ 531.628978][ T2931] ? _copy_from_iter+0x3fb/0xd60 [ 531.633979][ T2931] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 531.639936][ T2931] cgroup_file_write+0x28e/0x590 [ 531.644858][ T2931] ? cgroup_seqfile_stop+0xc0/0xc0 [ 531.649961][ T2931] ? mutex_trylock+0x180/0x180 [ 531.654701][ T2931] ? __kasan_check_write+0x14/0x20 [ 531.660286][ T2931] kernfs_fop_write_iter+0x2d0/0x410 [ 531.665777][ T2931] ? cgroup_seqfile_stop+0xc0/0xc0 [ 531.670889][ T2931] vfs_write+0xc4a/0xf80 [ 531.675221][ T2931] ? slab_free_freelist_hook+0xcc/0x1a0 [ 531.680773][ T2931] ? kernel_write+0x420/0x420 [ 531.685531][ T2931] ? do_sys_openat2+0x397/0x470 [ 531.690474][ T2931] ? __kasan_check_read+0x11/0x20 [ 531.695489][ T2931] ? __fdget_pos+0x27e/0x310 [ 531.700062][ T2931] ksys_write+0x198/0x2c0 [ 531.704377][ T2931] ? __ia32_sys_read+0x90/0x90 [ 531.709132][ T2931] ? debug_smp_processor_id+0x17/0x20 [ 531.714543][ T2931] __x64_sys_write+0x7b/0x90 [ 531.719217][ T2931] do_syscall_64+0x34/0x70 [ 531.723834][ T2931] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 531.729711][ T2931] RIP: 0033:0x7f48883727a9 [ 531.734106][ T2931] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 531.753802][ T2931] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 531.762218][ T2931] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 531.770201][ T2931] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 531.778276][ T2931] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 531.786241][ T2931] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 531.794207][ T2931] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000031 [ 531.802592][ T2931] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 531.847285][ T2919] FAULT_INJECTION: forcing a failure. [ 531.847285][ T2919] name failslab, interval 1, probability 0, space 0, times 0 [ 531.860083][ T2919] CPU: 0 PID: 2919 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 531.870509][ T2919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 531.880563][ T2919] Call Trace: [ 531.883848][ T2919] dump_stack_lvl+0x1e2/0x24b [ 531.888513][ T2919] ? bfq_pos_tree_add_move+0x43e/0x43e [ 531.893966][ T2919] ? selinux_kernfs_init_security+0x1a8/0x760 [ 531.900029][ T2919] dump_stack+0x15/0x17 [ 531.904178][ T2919] should_fail+0x3c0/0x510 [ 531.908595][ T2919] ? __kernfs_new_node+0x99/0x6e0 [ 531.913812][ T2919] __should_failslab+0x9f/0xe0 [ 531.918744][ T2919] should_failslab+0x9/0x20 [ 531.923227][ T2919] __kmalloc_track_caller+0x5f/0x350 [ 531.928513][ T2919] kstrdup_const+0x55/0x90 [ 531.932905][ T2919] __kernfs_new_node+0x99/0x6e0 [ 531.937758][ T2919] ? is_module_text_address+0xe1/0x140 [ 531.943208][ T2919] ? kernfs_new_node+0x170/0x170 [ 531.948146][ T2919] ? ptr_to_hashval+0x60/0x60 [ 531.952804][ T2919] ? mutex_lock+0xb2/0x1e0 [ 531.957287][ T2919] ? snprintf+0xd6/0x120 [ 531.961505][ T2919] ? mutex_unlock+0x29/0xf0 [ 531.966082][ T2919] kernfs_new_node+0x97/0x170 [ 531.970738][ T2919] __kernfs_create_file+0x4a/0x270 [ 531.975825][ T2919] cgroup_addrm_files+0xab8/0xfe0 [ 531.980847][ T2919] ? ____kasan_kmalloc+0xdc/0x110 [ 531.985875][ T2919] ? __kasan_kmalloc+0x9/0x10 [ 531.990532][ T2919] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 531.996072][ T2919] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 532.002220][ T2919] ? delete_node+0x759/0x7b0 [ 532.006960][ T2919] ? __kasan_check_read+0x11/0x20 [ 532.011973][ T2919] ? idr_replace+0x1c4/0x230 [ 532.016755][ T2919] ? idr_get_next+0x4b0/0x4b0 [ 532.021536][ T2919] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 532.026557][ T2919] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 532.031761][ T2919] css_populate_dir+0x137/0x370 [ 532.036692][ T2919] cgroup_apply_control_enable+0x8b9/0x12f0 [ 532.042660][ T2919] cgroup_apply_control+0x8e/0x7e0 [ 532.047869][ T2919] ? css_next_child+0x160/0x160 [ 532.052704][ T2919] ? stack_trace_save+0x12d/0x1f0 [ 532.057790][ T2919] ? io_schedule+0x120/0x120 [ 532.062356][ T2919] ? kernfs_fop_write_iter+0x15e/0x410 [ 532.067805][ T2919] ? __kasan_check_write+0x14/0x20 [ 532.072905][ T2919] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 532.078262][ T2919] cgroup_subtree_control_write+0xd19/0x1310 [ 532.084851][ T2919] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 532.090840][ T2919] ? __kasan_check_write+0x14/0x20 [ 532.095999][ T2919] ? _copy_from_iter+0x3fb/0xd60 [ 532.100941][ T2919] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 532.107025][ T2919] cgroup_file_write+0x28e/0x590 [ 532.111965][ T2919] ? cgroup_seqfile_stop+0xc0/0xc0 [ 532.117133][ T2919] ? mutex_trylock+0x180/0x180 [ 532.121888][ T2919] ? __kasan_check_write+0x14/0x20 [ 532.126997][ T2919] kernfs_fop_write_iter+0x2d0/0x410 [ 532.132286][ T2919] ? cgroup_seqfile_stop+0xc0/0xc0 [ 532.137395][ T2919] vfs_write+0xc4a/0xf80 [ 532.141623][ T2919] ? slab_free_freelist_hook+0xcc/0x1a0 [ 532.147601][ T2919] ? kernel_write+0x420/0x420 [ 532.152268][ T2919] ? do_sys_openat2+0x397/0x470 [ 532.157110][ T2919] ? __kasan_check_read+0x11/0x20 [ 532.162228][ T2919] ? __fdget_pos+0x27e/0x310 [ 532.167063][ T2919] ksys_write+0x198/0x2c0 [ 532.171370][ T2919] ? __ia32_sys_read+0x90/0x90 [ 532.176112][ T2919] ? debug_smp_processor_id+0x17/0x20 [ 532.181505][ T2919] __x64_sys_write+0x7b/0x90 [ 532.186187][ T2919] do_syscall_64+0x34/0x70 [ 532.190763][ T2919] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 532.196743][ T2919] RIP: 0033:0x7f48883727a9 [ 532.201151][ T2919] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 532.220745][ T2919] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 532.229154][ T2919] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 532.237112][ T2919] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 532.245223][ T2919] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 532.253180][ T2919] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 532.261139][ T2919] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002b [ 532.269377][ T2919] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 532.317320][ T2934] FAULT_INJECTION: forcing a failure. [ 532.317320][ T2934] name failslab, interval 1, probability 0, space 0, times 0 [ 532.330054][ T2934] CPU: 1 PID: 2934 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 532.340675][ T2934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 532.350729][ T2934] Call Trace: [ 532.354010][ T2934] dump_stack_lvl+0x1e2/0x24b [ 532.358677][ T2934] ? bfq_pos_tree_add_move+0x43e/0x43e [ 532.364301][ T2934] ? selinux_kernfs_init_security+0x1a8/0x760 [ 532.370365][ T2934] dump_stack+0x15/0x17 [ 532.374538][ T2934] should_fail+0x3c0/0x510 [ 532.378935][ T2934] ? __kernfs_new_node+0x99/0x6e0 [ 532.384312][ T2934] __should_failslab+0x9f/0xe0 [ 532.389075][ T2934] should_failslab+0x9/0x20 [ 532.393565][ T2934] __kmalloc_track_caller+0x5f/0x350 [ 532.398832][ T2934] kstrdup_const+0x55/0x90 [ 532.403231][ T2934] __kernfs_new_node+0x99/0x6e0 [ 532.408062][ T2934] ? is_module_text_address+0xe1/0x140 [ 532.413510][ T2934] ? kernfs_new_node+0x170/0x170 [ 532.418512][ T2934] ? ptr_to_hashval+0x60/0x60 [ 532.423167][ T2934] ? mutex_lock+0xb2/0x1e0 [ 532.427572][ T2934] ? snprintf+0xd6/0x120 [ 532.431798][ T2934] ? mutex_unlock+0x29/0xf0 [ 532.436365][ T2934] kernfs_new_node+0x97/0x170 [ 532.441026][ T2934] __kernfs_create_file+0x4a/0x270 [ 532.446137][ T2934] cgroup_addrm_files+0xab8/0xfe0 [ 532.451232][ T2934] ? ____kasan_kmalloc+0xdc/0x110 [ 532.456243][ T2934] ? __kasan_kmalloc+0x9/0x10 [ 532.461004][ T2934] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 532.466622][ T2934] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 532.472771][ T2934] ? delete_node+0x759/0x7b0 [ 532.477349][ T2934] ? __kasan_check_read+0x11/0x20 [ 532.482365][ T2934] ? idr_replace+0x1c4/0x230 [ 532.486941][ T2934] ? idr_get_next+0x4b0/0x4b0 [ 532.491602][ T2934] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 532.496638][ T2934] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 532.501848][ T2934] css_populate_dir+0x137/0x370 [ 532.506707][ T2934] cgroup_apply_control_enable+0x8b9/0x12f0 [ 532.512821][ T2934] cgroup_apply_control+0x8e/0x7e0 [ 532.517935][ T2934] ? css_next_child+0x160/0x160 [ 532.522773][ T2934] ? stack_trace_save+0x12d/0x1f0 [ 532.527892][ T2934] ? io_schedule+0x120/0x120 [ 532.532474][ T2934] ? kernfs_fop_write_iter+0x15e/0x410 [ 532.537913][ T2934] ? __kasan_check_write+0x14/0x20 [ 532.543059][ T2934] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 532.548343][ T2934] cgroup_subtree_control_write+0xd19/0x1310 [ 532.554430][ T2934] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 532.560397][ T2934] ? __kasan_check_write+0x14/0x20 [ 532.565489][ T2934] ? _copy_from_iter+0x3fb/0xd60 [ 532.570409][ T2934] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 532.576366][ T2934] cgroup_file_write+0x28e/0x590 [ 532.581400][ T2934] ? cgroup_seqfile_stop+0xc0/0xc0 [ 532.586490][ T2934] ? mutex_trylock+0x180/0x180 [ 532.591238][ T2934] ? __kasan_check_write+0x14/0x20 [ 532.596335][ T2934] kernfs_fop_write_iter+0x2d0/0x410 [ 532.601782][ T2934] ? cgroup_seqfile_stop+0xc0/0xc0 [ 532.606874][ T2934] vfs_write+0xc4a/0xf80 [ 532.611118][ T2934] ? slab_free_freelist_hook+0xcc/0x1a0 [ 532.616641][ T2934] ? kernel_write+0x420/0x420 [ 532.621302][ T2934] ? do_sys_openat2+0x397/0x470 [ 532.626131][ T2934] ? __kasan_check_read+0x11/0x20 [ 532.631137][ T2934] ? __fdget_pos+0x27e/0x310 [ 532.635751][ T2934] ksys_write+0x198/0x2c0 [ 532.640143][ T2934] ? __ia32_sys_read+0x90/0x90 [ 532.644884][ T2934] ? debug_smp_processor_id+0x17/0x20 [ 532.650233][ T2934] __x64_sys_write+0x7b/0x90 [ 532.654978][ T2934] do_syscall_64+0x34/0x70 [ 532.659546][ T2934] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 532.665420][ T2934] RIP: 0033:0x7f48883727a9 [ 532.669934][ T2934] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 532.689614][ T2934] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 532.698108][ T2934] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 532.706263][ T2934] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 532.714219][ T2934] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 532.722193][ T2934] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 532.730148][ T2934] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002c [ 532.739274][ T2934] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 532.787458][ T2935] FAULT_INJECTION: forcing a failure. [ 532.787458][ T2935] name failslab, interval 1, probability 0, space 0, times 0 [ 532.800323][ T2935] CPU: 0 PID: 2935 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 532.810816][ T2935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 532.821149][ T2935] Call Trace: [ 532.824468][ T2935] dump_stack_lvl+0x1e2/0x24b [ 532.829181][ T2935] ? panic+0x7d7/0x7d7 [ 532.833239][ T2935] ? bfq_pos_tree_add_move+0x43e/0x43e [ 532.838765][ T2935] ? selinux_kernfs_init_security+0x1a8/0x760 [ 532.844863][ T2935] dump_stack+0x15/0x17 [ 532.849091][ T2935] should_fail+0x3c0/0x510 [ 532.853642][ T2935] __should_failslab+0x9f/0xe0 [ 532.858415][ T2935] should_failslab+0x9/0x20 [ 532.862935][ T2935] kmem_cache_alloc+0x3f/0x300 [ 532.867680][ T2935] ? __kernfs_new_node+0xdb/0x6e0 [ 532.872689][ T2935] __kernfs_new_node+0xdb/0x6e0 [ 532.877530][ T2935] ? is_module_text_address+0xe1/0x140 [ 532.882970][ T2935] ? kernfs_new_node+0x170/0x170 [ 532.888019][ T2935] ? ptr_to_hashval+0x60/0x60 [ 532.892676][ T2935] ? arch_stack_walk+0xf8/0x140 [ 532.897515][ T2935] ? snprintf+0xd6/0x120 [ 532.901743][ T2935] kernfs_new_node+0x97/0x170 [ 532.906404][ T2935] __kernfs_create_file+0x4a/0x270 [ 532.911585][ T2935] cgroup_addrm_files+0xab8/0xfe0 [ 532.916941][ T2935] ? ____kasan_kmalloc+0xdc/0x110 [ 532.921946][ T2935] ? __kasan_kmalloc+0x9/0x10 [ 532.926693][ T2935] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 532.932267][ T2935] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 532.938435][ T2935] ? delete_node+0x759/0x7b0 [ 532.943010][ T2935] ? __kasan_check_read+0x11/0x20 [ 532.948061][ T2935] ? delete_node+0x759/0x7b0 [ 532.952638][ T2935] ? __kasan_check_write+0x14/0x20 [ 532.957741][ T2935] ? idr_replace+0x1c4/0x230 [ 532.962314][ T2935] ? idr_get_next+0x4b0/0x4b0 [ 532.966967][ T2935] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 532.972057][ T2935] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 532.977247][ T2935] css_populate_dir+0x137/0x370 [ 532.982083][ T2935] cgroup_apply_control_enable+0x8b9/0x12f0 [ 532.987972][ T2935] cgroup_apply_control+0x8e/0x7e0 [ 532.993075][ T2935] ? css_next_child+0x160/0x160 [ 532.998038][ T2935] ? stack_trace_save+0x12d/0x1f0 [ 533.003076][ T2935] ? io_schedule+0x120/0x120 [ 533.007664][ T2935] ? kernfs_fop_write_iter+0x15e/0x410 [ 533.013287][ T2935] ? __kasan_check_write+0x14/0x20 [ 533.018433][ T2935] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 533.023711][ T2935] cgroup_subtree_control_write+0xd19/0x1310 [ 533.029681][ T2935] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 533.035724][ T2935] ? __kasan_check_write+0x14/0x20 [ 533.040828][ T2935] ? _copy_from_iter+0x3fb/0xd60 [ 533.045755][ T2935] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 533.051821][ T2935] cgroup_file_write+0x28e/0x590 [ 533.056748][ T2935] ? cgroup_seqfile_stop+0xc0/0xc0 [ 533.061840][ T2935] ? mutex_trylock+0x180/0x180 [ 533.066682][ T2935] ? __kasan_check_write+0x14/0x20 [ 533.071796][ T2935] kernfs_fop_write_iter+0x2d0/0x410 [ 533.077071][ T2935] ? cgroup_seqfile_stop+0xc0/0xc0 [ 533.082187][ T2935] vfs_write+0xc4a/0xf80 [ 533.086411][ T2935] ? slab_free_freelist_hook+0xcc/0x1a0 [ 533.091936][ T2935] ? kernel_write+0x420/0x420 [ 533.096593][ T2935] ? do_sys_openat2+0x397/0x470 [ 533.101509][ T2935] ? __kasan_check_read+0x11/0x20 [ 533.106598][ T2935] ? __fdget_pos+0x27e/0x310 [ 533.111178][ T2935] ksys_write+0x198/0x2c0 [ 533.115718][ T2935] ? __ia32_sys_read+0x90/0x90 [ 533.120714][ T2935] ? debug_smp_processor_id+0x17/0x20 [ 533.126073][ T2935] __x64_sys_write+0x7b/0x90 [ 533.130655][ T2935] do_syscall_64+0x34/0x70 [ 533.135074][ T2935] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 533.140951][ T2935] RIP: 0033:0x7f48883727a9 [ 533.145363][ T2935] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 533.164963][ T2935] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 533.173764][ T2935] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 533.181882][ T2935] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 533.189844][ T2935] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 533.197837][ T2935] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 533.205797][ T2935] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002c [ 533.214057][ T2935] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 533.257449][ T2937] FAULT_INJECTION: forcing a failure. [ 533.257449][ T2937] name failslab, interval 1, probability 0, space 0, times 0 [ 533.270200][ T2937] CPU: 0 PID: 2937 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 533.280870][ T2937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 533.290909][ T2937] Call Trace: [ 533.294307][ T2937] dump_stack_lvl+0x1e2/0x24b [ 533.298965][ T2937] ? bfq_pos_tree_add_move+0x43e/0x43e [ 533.304402][ T2937] ? selinux_kernfs_init_security+0x1a8/0x760 [ 533.310802][ T2937] dump_stack+0x15/0x17 [ 533.315112][ T2937] should_fail+0x3c0/0x510 [ 533.319522][ T2937] ? __kernfs_new_node+0x99/0x6e0 [ 533.324535][ T2937] __should_failslab+0x9f/0xe0 [ 533.329286][ T2937] should_failslab+0x9/0x20 [ 533.333778][ T2937] __kmalloc_track_caller+0x5f/0x350 [ 533.339131][ T2937] kstrdup_const+0x55/0x90 [ 533.343524][ T2937] __kernfs_new_node+0x99/0x6e0 [ 533.348349][ T2937] ? is_module_text_address+0xe1/0x140 [ 533.353779][ T2937] ? kernfs_new_node+0x170/0x170 [ 533.358690][ T2937] ? ptr_to_hashval+0x60/0x60 [ 533.363339][ T2937] ? mutex_lock+0xb2/0x1e0 [ 533.367730][ T2937] ? snprintf+0xd6/0x120 [ 533.372396][ T2937] ? mutex_unlock+0x29/0xf0 [ 533.376876][ T2937] kernfs_new_node+0x97/0x170 [ 533.381528][ T2937] __kernfs_create_file+0x4a/0x270 [ 533.386615][ T2937] cgroup_addrm_files+0xab8/0xfe0 [ 533.391625][ T2937] ? ____kasan_kmalloc+0xdc/0x110 [ 533.396621][ T2937] ? __kasan_kmalloc+0x9/0x10 [ 533.401576][ T2937] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 533.407117][ T2937] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 533.413303][ T2937] ? delete_node+0x759/0x7b0 [ 533.418058][ T2937] ? __kasan_check_read+0x11/0x20 [ 533.423256][ T2937] ? idr_replace+0x1c4/0x230 [ 533.427826][ T2937] ? idr_get_next+0x4b0/0x4b0 [ 533.432484][ T2937] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 533.437494][ T2937] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 533.442682][ T2937] css_populate_dir+0x137/0x370 [ 533.447543][ T2937] cgroup_apply_control_enable+0x8b9/0x12f0 [ 533.453435][ T2937] cgroup_apply_control+0x8e/0x7e0 [ 533.458554][ T2937] ? css_next_child+0x160/0x160 [ 533.463425][ T2937] ? stack_trace_save+0x12d/0x1f0 [ 533.468446][ T2937] ? io_schedule+0x120/0x120 [ 533.473208][ T2937] ? kernfs_fop_write_iter+0x15e/0x410 [ 533.478683][ T2937] ? __kasan_check_write+0x14/0x20 [ 533.483998][ T2937] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 533.489882][ T2937] cgroup_subtree_control_write+0xd19/0x1310 [ 533.495927][ T2937] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 533.501971][ T2937] ? __kasan_check_write+0x14/0x20 [ 533.507061][ T2937] ? _copy_from_iter+0x3fb/0xd60 [ 533.512281][ T2937] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 533.518237][ T2937] cgroup_file_write+0x28e/0x590 [ 533.523150][ T2937] ? cgroup_seqfile_stop+0xc0/0xc0 [ 533.528237][ T2937] ? mutex_trylock+0x180/0x180 [ 533.532977][ T2937] ? __kasan_check_write+0x14/0x20 [ 533.538431][ T2937] kernfs_fop_write_iter+0x2d0/0x410 [ 533.543703][ T2937] ? cgroup_seqfile_stop+0xc0/0xc0 [ 533.548790][ T2937] vfs_write+0xc4a/0xf80 [ 533.553011][ T2937] ? slab_free_freelist_hook+0xcc/0x1a0 [ 533.558546][ T2937] ? kernel_write+0x420/0x420 [ 533.563198][ T2937] ? do_sys_openat2+0x397/0x470 [ 533.568041][ T2937] ? __kasan_check_read+0x11/0x20 [ 533.573041][ T2937] ? __fdget_pos+0x27e/0x310 [ 533.577693][ T2937] ksys_write+0x198/0x2c0 [ 533.582088][ T2937] ? __ia32_sys_read+0x90/0x90 [ 533.586841][ T2937] ? debug_smp_processor_id+0x17/0x20 [ 533.592215][ T2937] __x64_sys_write+0x7b/0x90 [ 533.596817][ T2937] do_syscall_64+0x34/0x70 [ 533.601238][ T2937] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 533.607141][ T2937] RIP: 0033:0x7f48883727a9 [ 533.611547][ T2937] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 533.631139][ T2937] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 533.639534][ T2937] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 533.647495][ T2937] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 533.655443][ T2937] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 533.663503][ T2937] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 533.671455][ T2937] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002d [ 533.680656][ T2937] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 533.727077][ T2933] FAULT_INJECTION: forcing a failure. [ 533.727077][ T2933] name failslab, interval 1, probability 0, space 0, times 0 [ 533.739767][ T2933] CPU: 1 PID: 2933 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 533.750175][ T2933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 533.760213][ T2933] Call Trace: [ 533.763489][ T2933] dump_stack_lvl+0x1e2/0x24b [ 533.768148][ T2933] ? bfq_pos_tree_add_move+0x43e/0x43e [ 533.773587][ T2933] ? selinux_kernfs_init_security+0x1a8/0x760 [ 533.779637][ T2933] dump_stack+0x15/0x17 [ 533.783776][ T2933] should_fail+0x3c0/0x510 [ 533.788173][ T2933] ? __kernfs_new_node+0x99/0x6e0 [ 533.793262][ T2933] __should_failslab+0x9f/0xe0 [ 533.798007][ T2933] should_failslab+0x9/0x20 [ 533.802493][ T2933] __kmalloc_track_caller+0x5f/0x350 [ 533.807848][ T2933] kstrdup_const+0x55/0x90 [ 533.812245][ T2933] __kernfs_new_node+0x99/0x6e0 [ 533.817075][ T2933] ? is_module_text_address+0xe1/0x140 [ 533.822518][ T2933] ? kernfs_new_node+0x170/0x170 [ 533.827628][ T2933] ? ptr_to_hashval+0x60/0x60 [ 533.832280][ T2933] ? mutex_lock+0xb2/0x1e0 [ 533.836854][ T2933] ? snprintf+0xd6/0x120 [ 533.841090][ T2933] ? mutex_unlock+0x29/0xf0 [ 533.845602][ T2933] kernfs_new_node+0x97/0x170 [ 533.850420][ T2933] __kernfs_create_file+0x4a/0x270 [ 533.855532][ T2933] cgroup_addrm_files+0xab8/0xfe0 [ 533.860671][ T2933] ? ____kasan_kmalloc+0xdc/0x110 [ 533.865791][ T2933] ? __kasan_kmalloc+0x9/0x10 [ 533.870454][ T2933] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 533.876029][ T2933] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 533.882177][ T2933] ? delete_node+0x759/0x7b0 [ 533.886752][ T2933] ? __kasan_check_read+0x11/0x20 [ 533.891759][ T2933] ? idr_replace+0x1c4/0x230 [ 533.896423][ T2933] ? idr_get_next+0x4b0/0x4b0 [ 533.901084][ T2933] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 533.906170][ T2933] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 533.911346][ T2933] css_populate_dir+0x137/0x370 [ 533.916271][ T2933] cgroup_apply_control_enable+0x8b9/0x12f0 [ 533.922156][ T2933] cgroup_apply_control+0x8e/0x7e0 [ 533.927304][ T2933] ? css_next_child+0x160/0x160 [ 533.932318][ T2933] ? io_schedule+0x120/0x120 [ 533.936894][ T2933] ? kernfs_fop_write_iter+0x15e/0x410 [ 533.942447][ T2933] ? __kasan_check_write+0x14/0x20 [ 533.947544][ T2933] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 533.952825][ T2933] cgroup_subtree_control_write+0xd19/0x1310 [ 533.958979][ T2933] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 533.965053][ T2933] ? __kasan_check_write+0x14/0x20 [ 533.970253][ T2933] ? _copy_from_iter+0x3fb/0xd60 [ 533.975190][ T2933] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 533.981288][ T2933] cgroup_file_write+0x28e/0x590 [ 533.986224][ T2933] ? cgroup_seqfile_stop+0xc0/0xc0 [ 533.991400][ T2933] ? mutex_trylock+0x180/0x180 [ 533.996164][ T2933] ? __kasan_check_write+0x14/0x20 [ 534.001252][ T2933] kernfs_fop_write_iter+0x2d0/0x410 [ 534.006520][ T2933] ? cgroup_seqfile_stop+0xc0/0xc0 [ 534.011638][ T2933] vfs_write+0xc4a/0xf80 [ 534.015886][ T2933] ? kernel_write+0x420/0x420 [ 534.020543][ T2933] ? do_sys_openat2+0x397/0x470 [ 534.025395][ T2933] ? __kasan_check_read+0x11/0x20 [ 534.030720][ T2933] ? __fdget_pos+0x27e/0x310 [ 534.035485][ T2933] ksys_write+0x198/0x2c0 [ 534.039803][ T2933] ? __kasan_check_write+0x14/0x20 [ 534.044915][ T2933] ? __ia32_sys_read+0x90/0x90 [ 534.049667][ T2933] ? debug_smp_processor_id+0x17/0x20 [ 534.055197][ T2933] __x64_sys_write+0x7b/0x90 [ 534.059768][ T2933] do_syscall_64+0x34/0x70 [ 534.064189][ T2933] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 534.070073][ T2933] RIP: 0033:0x7f48883727a9 [ 534.074482][ T2933] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 534.095726][ T2933] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 534.104483][ T2933] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 534.112652][ T2933] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 534.120626][ T2933] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 534.128721][ T2933] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 534.136893][ T2933] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000032 [ 534.145150][ T2933] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 534.187221][ T2927] FAULT_INJECTION: forcing a failure. [ 534.187221][ T2927] name failslab, interval 1, probability 0, space 0, times 0 [ 534.199985][ T2927] CPU: 1 PID: 2927 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 534.210717][ T2927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 534.220997][ T2927] Call Trace: [ 534.224443][ T2927] dump_stack_lvl+0x1e2/0x24b [ 534.229122][ T2927] ? bfq_pos_tree_add_move+0x43e/0x43e [ 534.234617][ T2927] ? selinux_kernfs_init_security+0x1a8/0x760 [ 534.240785][ T2927] dump_stack+0x15/0x17 [ 534.244944][ T2927] should_fail+0x3c0/0x510 [ 534.249521][ T2927] ? __kernfs_new_node+0x99/0x6e0 [ 534.254613][ T2927] __should_failslab+0x9f/0xe0 [ 534.259362][ T2927] should_failslab+0x9/0x20 [ 534.263855][ T2927] __kmalloc_track_caller+0x5f/0x350 [ 534.269146][ T2927] kstrdup_const+0x55/0x90 [ 534.273547][ T2927] __kernfs_new_node+0x99/0x6e0 [ 534.278388][ T2927] ? is_module_text_address+0xe1/0x140 [ 534.283835][ T2927] ? kernfs_new_node+0x170/0x170 [ 534.288842][ T2927] ? ptr_to_hashval+0x60/0x60 [ 534.293520][ T2927] ? mutex_lock+0xb2/0x1e0 [ 534.297931][ T2927] ? snprintf+0xd6/0x120 [ 534.302174][ T2927] ? mutex_unlock+0x29/0xf0 [ 534.306786][ T2927] kernfs_new_node+0x97/0x170 [ 534.311535][ T2927] __kernfs_create_file+0x4a/0x270 [ 534.316657][ T2927] cgroup_addrm_files+0xab8/0xfe0 [ 534.321669][ T2927] ? ____kasan_kmalloc+0xdc/0x110 [ 534.326813][ T2927] ? __kasan_kmalloc+0x9/0x10 [ 534.331651][ T2927] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 534.337428][ T2927] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 534.343589][ T2927] ? delete_node+0x759/0x7b0 [ 534.348167][ T2927] ? __kasan_check_read+0x11/0x20 [ 534.353348][ T2927] ? idr_replace+0x1c4/0x230 [ 534.357926][ T2927] ? idr_get_next+0x4b0/0x4b0 [ 534.362593][ T2927] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 534.367605][ T2927] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 534.372815][ T2927] css_populate_dir+0x137/0x370 [ 534.377678][ T2927] cgroup_apply_control_enable+0x8b9/0x12f0 [ 534.383556][ T2927] cgroup_apply_control+0x8e/0x7e0 [ 534.388651][ T2927] ? css_next_child+0x160/0x160 [ 534.393498][ T2927] ? io_schedule+0x120/0x120 [ 534.398091][ T2927] ? kernfs_fop_write_iter+0x15e/0x410 [ 534.403533][ T2927] ? __kasan_check_write+0x14/0x20 [ 534.408635][ T2927] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 534.414181][ T2927] cgroup_subtree_control_write+0xd19/0x1310 [ 534.420154][ T2927] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 534.426333][ T2927] ? __kasan_check_write+0x14/0x20 [ 534.431435][ T2927] ? _copy_from_iter+0x3fb/0xd60 [ 534.436356][ T2927] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 534.442712][ T2927] cgroup_file_write+0x28e/0x590 [ 534.447656][ T2927] ? cgroup_seqfile_stop+0xc0/0xc0 [ 534.452760][ T2927] ? mutex_trylock+0x180/0x180 [ 534.457510][ T2927] ? __kasan_check_write+0x14/0x20 [ 534.462604][ T2927] kernfs_fop_write_iter+0x2d0/0x410 [ 534.467893][ T2927] ? cgroup_seqfile_stop+0xc0/0xc0 [ 534.473071][ T2927] vfs_write+0xc4a/0xf80 [ 534.477299][ T2927] ? kernel_write+0x420/0x420 [ 534.481968][ T2927] ? do_sys_openat2+0x397/0x470 [ 534.486801][ T2927] ? __kasan_check_read+0x11/0x20 [ 534.492196][ T2927] ? __fdget_pos+0x27e/0x310 [ 534.496788][ T2927] ksys_write+0x198/0x2c0 [ 534.501388][ T2927] ? __ia32_sys_read+0x90/0x90 [ 534.506185][ T2927] ? debug_smp_processor_id+0x17/0x20 [ 534.511770][ T2927] __x64_sys_write+0x7b/0x90 [ 534.516364][ T2927] do_syscall_64+0x34/0x70 [ 534.520843][ T2927] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 534.526724][ T2927] RIP: 0033:0x7f48883727a9 [ 534.531127][ T2927] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 534.550826][ T2927] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 534.559346][ T2927] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 534.567656][ T2927] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 534.575647][ T2927] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 534.583601][ T2927] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 534.591575][ T2927] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002d [ 534.599817][ T2927] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 534.637490][ T2936] FAULT_INJECTION: forcing a failure. [ 534.637490][ T2936] name failslab, interval 1, probability 0, space 0, times 0 [ 534.650129][ T2936] CPU: 1 PID: 2936 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 534.660526][ T2936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 534.670682][ T2936] Call Trace: [ 534.673991][ T2936] dump_stack_lvl+0x1e2/0x24b [ 534.678672][ T2936] ? panic+0x7d7/0x7d7 [ 534.682732][ T2936] ? bfq_pos_tree_add_move+0x43e/0x43e [ 534.688358][ T2936] ? selinux_kernfs_init_security+0x1a8/0x760 [ 534.694689][ T2936] dump_stack+0x15/0x17 [ 534.698855][ T2936] should_fail+0x3c0/0x510 [ 534.703387][ T2936] __should_failslab+0x9f/0xe0 [ 534.708299][ T2936] should_failslab+0x9/0x20 [ 534.712791][ T2936] kmem_cache_alloc+0x3f/0x300 [ 534.717779][ T2936] ? __kernfs_new_node+0xdb/0x6e0 [ 534.722905][ T2936] __kernfs_new_node+0xdb/0x6e0 [ 534.727857][ T2936] ? is_module_text_address+0xe1/0x140 [ 534.733305][ T2936] ? kernfs_new_node+0x170/0x170 [ 534.738228][ T2936] ? ptr_to_hashval+0x60/0x60 [ 534.742899][ T2936] ? arch_stack_walk+0xf8/0x140 [ 534.748526][ T2936] ? snprintf+0xd6/0x120 [ 534.752760][ T2936] kernfs_new_node+0x97/0x170 [ 534.757434][ T2936] __kernfs_create_file+0x4a/0x270 [ 534.762710][ T2936] cgroup_addrm_files+0xab8/0xfe0 [ 534.767718][ T2936] ? ____kasan_kmalloc+0xdc/0x110 [ 534.772722][ T2936] ? __kasan_kmalloc+0x9/0x10 [ 534.777436][ T2936] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 534.783237][ T2936] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 534.789535][ T2936] ? delete_node+0x759/0x7b0 [ 534.794142][ T2936] ? __kasan_check_read+0x11/0x20 [ 534.799143][ T2936] ? delete_node+0x759/0x7b0 [ 534.803713][ T2936] ? __kasan_check_write+0x14/0x20 [ 534.808807][ T2936] ? idr_replace+0x1c4/0x230 [ 534.813450][ T2936] ? idr_get_next+0x4b0/0x4b0 [ 534.818310][ T2936] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 534.823544][ T2936] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 534.828730][ T2936] css_populate_dir+0x137/0x370 [ 534.833672][ T2936] cgroup_apply_control_enable+0x8b9/0x12f0 [ 534.839564][ T2936] cgroup_apply_control+0x8e/0x7e0 [ 534.844663][ T2936] ? css_next_child+0x160/0x160 [ 534.849495][ T2936] ? stack_trace_save+0x12d/0x1f0 [ 534.854500][ T2936] ? io_schedule+0x120/0x120 [ 534.859190][ T2936] ? kernfs_fop_write_iter+0x15e/0x410 [ 534.864722][ T2936] ? __kasan_check_write+0x14/0x20 [ 534.869819][ T2936] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 534.875085][ T2936] cgroup_subtree_control_write+0xd19/0x1310 [ 534.881045][ T2936] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 534.887005][ T2936] ? __kasan_check_write+0x14/0x20 [ 534.892105][ T2936] ? _copy_from_iter+0x3fb/0xd60 [ 534.897119][ T2936] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 534.903084][ T2936] cgroup_file_write+0x28e/0x590 [ 534.908167][ T2936] ? cgroup_seqfile_stop+0xc0/0xc0 [ 534.913286][ T2936] ? mutex_trylock+0x180/0x180 [ 534.918152][ T2936] ? __kasan_check_write+0x14/0x20 [ 534.923339][ T2936] kernfs_fop_write_iter+0x2d0/0x410 [ 534.928618][ T2936] ? cgroup_seqfile_stop+0xc0/0xc0 [ 534.933804][ T2936] vfs_write+0xc4a/0xf80 [ 534.938042][ T2936] ? slab_free_freelist_hook+0xcc/0x1a0 [ 534.943675][ T2936] ? kernel_write+0x420/0x420 [ 534.948503][ T2936] ? do_sys_openat2+0x397/0x470 [ 534.953342][ T2936] ? __kasan_check_read+0x11/0x20 [ 534.958348][ T2936] ? __fdget_pos+0x27e/0x310 [ 534.963005][ T2936] ksys_write+0x198/0x2c0 [ 534.967316][ T2936] ? __ia32_sys_read+0x90/0x90 [ 534.972061][ T2936] ? debug_smp_processor_id+0x17/0x20 [ 534.977414][ T2936] __x64_sys_write+0x7b/0x90 [ 534.981984][ T2936] do_syscall_64+0x34/0x70 [ 534.986405][ T2936] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 534.992274][ T2936] RIP: 0033:0x7f48883727a9 [ 534.996667][ T2936] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 535.016343][ T2936] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 535.024837][ T2936] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 535.032799][ T2936] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 535.040756][ T2936] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 535.049082][ T2936] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 535.057051][ T2936] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002d [ 535.065277][ T2936] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 535.097266][ T2932] FAULT_INJECTION: forcing a failure. [ 535.097266][ T2932] name failslab, interval 1, probability 0, space 0, times 0 [ 535.110565][ T2932] CPU: 0 PID: 2932 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 535.120972][ T2932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 535.131017][ T2932] Call Trace: [ 535.134309][ T2932] dump_stack_lvl+0x1e2/0x24b [ 535.139058][ T2932] ? panic+0x7d7/0x7d7 [ 535.143269][ T2932] ? bfq_pos_tree_add_move+0x43e/0x43e [ 535.148987][ T2932] ? selinux_kernfs_init_security+0x1a8/0x760 [ 535.155228][ T2932] dump_stack+0x15/0x17 [ 535.159467][ T2932] should_fail+0x3c0/0x510 [ 535.163880][ T2932] __should_failslab+0x9f/0xe0 [ 535.168654][ T2932] should_failslab+0x9/0x20 [ 535.173254][ T2932] kmem_cache_alloc+0x3f/0x300 [ 535.178272][ T2932] ? __kernfs_new_node+0xdb/0x6e0 [ 535.183386][ T2932] __kernfs_new_node+0xdb/0x6e0 [ 535.188308][ T2932] ? is_module_text_address+0xe1/0x140 [ 535.193870][ T2932] ? kernfs_new_node+0x170/0x170 [ 535.198921][ T2932] ? ptr_to_hashval+0x60/0x60 [ 535.203588][ T2932] ? arch_stack_walk+0xf8/0x140 [ 535.208533][ T2932] ? snprintf+0xd6/0x120 [ 535.212872][ T2932] kernfs_new_node+0x97/0x170 [ 535.217534][ T2932] __kernfs_create_file+0x4a/0x270 [ 535.222776][ T2932] cgroup_addrm_files+0xab8/0xfe0 [ 535.227803][ T2932] ? ____kasan_kmalloc+0xdc/0x110 [ 535.232806][ T2932] ? __kasan_kmalloc+0x9/0x10 [ 535.237475][ T2932] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 535.243170][ T2932] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 535.249307][ T2932] ? delete_node+0x759/0x7b0 [ 535.254148][ T2932] ? __kasan_check_read+0x11/0x20 [ 535.259327][ T2932] ? delete_node+0x759/0x7b0 [ 535.264085][ T2932] ? __kasan_check_write+0x14/0x20 [ 535.269293][ T2932] ? idr_replace+0x1c4/0x230 [ 535.273865][ T2932] ? idr_get_next+0x4b0/0x4b0 [ 535.278612][ T2932] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 535.283642][ T2932] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 535.288924][ T2932] css_populate_dir+0x137/0x370 [ 535.293764][ T2932] cgroup_apply_control_enable+0x8b9/0x12f0 [ 535.299735][ T2932] cgroup_apply_control+0x8e/0x7e0 [ 535.304831][ T2932] ? css_next_child+0x160/0x160 [ 535.309660][ T2932] ? stack_trace_save+0x12d/0x1f0 [ 535.314661][ T2932] ? io_schedule+0x120/0x120 [ 535.319239][ T2932] ? kernfs_fop_write_iter+0x15e/0x410 [ 535.324694][ T2932] ? __kasan_check_write+0x14/0x20 [ 535.329995][ T2932] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 535.335445][ T2932] cgroup_subtree_control_write+0xd19/0x1310 [ 535.341428][ T2932] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 535.347432][ T2932] ? __kasan_check_write+0x14/0x20 [ 535.352551][ T2932] ? _copy_from_iter+0x3fb/0xd60 [ 535.357479][ T2932] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 535.363467][ T2932] cgroup_file_write+0x28e/0x590 [ 535.368517][ T2932] ? cgroup_seqfile_stop+0xc0/0xc0 [ 535.373620][ T2932] ? mutex_trylock+0x180/0x180 [ 535.378379][ T2932] ? __kasan_check_write+0x14/0x20 [ 535.383505][ T2932] kernfs_fop_write_iter+0x2d0/0x410 [ 535.388974][ T2932] ? cgroup_seqfile_stop+0xc0/0xc0 [ 535.394084][ T2932] vfs_write+0xc4a/0xf80 [ 535.398398][ T2932] ? slab_free_freelist_hook+0xcc/0x1a0 [ 535.403929][ T2932] ? kernel_write+0x420/0x420 [ 535.408611][ T2932] ? do_sys_openat2+0x397/0x470 [ 535.413448][ T2932] ? __kasan_check_read+0x11/0x20 [ 535.418464][ T2932] ? __fdget_pos+0x27e/0x310 [ 535.423051][ T2932] ksys_write+0x198/0x2c0 [ 535.427434][ T2932] ? __ia32_sys_read+0x90/0x90 [ 535.432225][ T2932] ? debug_smp_processor_id+0x17/0x20 [ 535.437785][ T2932] __x64_sys_write+0x7b/0x90 [ 535.442486][ T2932] do_syscall_64+0x34/0x70 [ 535.447012][ T2932] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 535.452897][ T2932] RIP: 0033:0x7f48883727a9 [ 535.457303][ T2932] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 535.477079][ T2932] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 535.485641][ T2932] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 535.493794][ T2932] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 535.501845][ T2932] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 535.510474][ T2932] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 535.518638][ T2932] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003e [ 535.526872][ T2932] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 535.577314][ T2940] FAULT_INJECTION: forcing a failure. [ 535.577314][ T2940] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 535.590737][ T2940] CPU: 1 PID: 2940 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 535.601238][ T2940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 535.611451][ T2940] Call Trace: [ 535.614729][ T2940] dump_stack_lvl+0x1e2/0x24b [ 535.619398][ T2940] ? bfq_pos_tree_add_move+0x43e/0x43e [ 535.624929][ T2940] ? stack_trace_save+0x12d/0x1f0 [ 535.630012][ T2940] dump_stack+0x15/0x17 [ 535.634180][ T2940] should_fail+0x3c0/0x510 [ 535.638606][ T2940] should_fail_alloc_page+0x50/0x60 [ 535.643822][ T2940] __alloc_pages_nodemask+0x1c0/0x890 [ 535.649279][ T2940] ? __kasan_check_write+0x14/0x20 [ 535.654381][ T2940] ? delete_node+0x759/0x7b0 [ 535.659054][ T2940] ? mutex_trylock+0x180/0x180 [ 535.663912][ T2940] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 535.669450][ T2940] ? kernfs_xattr_get+0x80/0x90 [ 535.674281][ T2940] ? selinux_kernfs_init_security+0x1a8/0x760 [ 535.680423][ T2940] allocate_slab+0x78/0x540 [ 535.685051][ T2940] ___slab_alloc+0x131/0x2e0 [ 535.689718][ T2940] ? __kernfs_new_node+0xdb/0x6e0 [ 535.694766][ T2940] __slab_alloc+0x63/0xa0 [ 535.699074][ T2940] ? __kernfs_new_node+0xdb/0x6e0 [ 535.704073][ T2940] kmem_cache_alloc+0x1ef/0x300 [ 535.709170][ T2940] ? __kernfs_new_node+0xdb/0x6e0 [ 535.714212][ T2940] __kernfs_new_node+0xdb/0x6e0 [ 535.719055][ T2940] ? is_module_text_address+0xe1/0x140 [ 535.724633][ T2940] ? kernfs_new_node+0x170/0x170 [ 535.729786][ T2940] ? ptr_to_hashval+0x60/0x60 [ 535.734574][ T2940] ? arch_stack_walk+0xf8/0x140 [ 535.739415][ T2940] ? snprintf+0xd6/0x120 [ 535.743665][ T2940] kernfs_new_node+0x97/0x170 [ 535.748418][ T2940] __kernfs_create_file+0x4a/0x270 [ 535.753519][ T2940] cgroup_addrm_files+0xab8/0xfe0 [ 535.758788][ T2940] ? ____kasan_kmalloc+0xdc/0x110 [ 535.763787][ T2940] ? __kasan_kmalloc+0x9/0x10 [ 535.768450][ T2940] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 535.774012][ T2940] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 535.780262][ T2940] ? delete_node+0x759/0x7b0 [ 535.784847][ T2940] ? __kasan_check_read+0x11/0x20 [ 535.789861][ T2940] ? delete_node+0x759/0x7b0 [ 535.794577][ T2940] ? __kasan_check_write+0x14/0x20 [ 535.799687][ T2940] ? idr_replace+0x1c4/0x230 [ 535.804274][ T2940] ? idr_get_next+0x4b0/0x4b0 [ 535.808951][ T2940] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 535.814155][ T2940] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 535.819344][ T2940] css_populate_dir+0x137/0x370 [ 535.824226][ T2940] cgroup_apply_control_enable+0x8b9/0x12f0 [ 535.830126][ T2940] cgroup_apply_control+0x8e/0x7e0 [ 535.835572][ T2940] ? css_next_child+0x160/0x160 [ 535.840666][ T2940] ? stack_trace_save+0x12d/0x1f0 [ 535.845752][ T2940] ? io_schedule+0x120/0x120 [ 535.850318][ T2940] ? kernfs_fop_write_iter+0x15e/0x410 [ 535.855748][ T2940] ? __kasan_check_write+0x14/0x20 [ 535.860834][ T2940] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 535.866094][ T2940] cgroup_subtree_control_write+0xd19/0x1310 [ 535.872061][ T2940] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 535.878014][ T2940] ? __kasan_check_write+0x14/0x20 [ 535.883100][ T2940] ? _copy_from_iter+0x3fb/0xd60 [ 535.888018][ T2940] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 535.893971][ T2940] cgroup_file_write+0x28e/0x590 [ 535.898905][ T2940] ? cgroup_seqfile_stop+0xc0/0xc0 [ 535.904160][ T2940] ? mutex_trylock+0x180/0x180 [ 535.908909][ T2940] ? __kasan_check_write+0x14/0x20 [ 535.914102][ T2940] kernfs_fop_write_iter+0x2d0/0x410 [ 535.919386][ T2940] ? cgroup_seqfile_stop+0xc0/0xc0 [ 535.924491][ T2940] vfs_write+0xc4a/0xf80 [ 535.928713][ T2940] ? slab_free_freelist_hook+0xcc/0x1a0 [ 535.934323][ T2940] ? kernel_write+0x420/0x420 [ 535.939076][ T2940] ? do_sys_openat2+0x397/0x470 [ 535.944164][ T2940] ? __kasan_check_read+0x11/0x20 [ 535.949288][ T2940] ? __fdget_pos+0x27e/0x310 [ 535.953979][ T2940] ksys_write+0x198/0x2c0 [ 535.958469][ T2940] ? __ia32_sys_read+0x90/0x90 [ 535.963210][ T2940] ? debug_smp_processor_id+0x17/0x20 [ 535.968566][ T2940] __x64_sys_write+0x7b/0x90 [ 535.973216][ T2940] do_syscall_64+0x34/0x70 [ 535.977604][ T2940] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 535.983496][ T2940] RIP: 0033:0x7f48883727a9 [ 535.987974][ T2940] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 536.008012][ T2940] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 536.016430][ T2940] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 536.024618][ T2940] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 536.032968][ T2940] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 536.041305][ T2940] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 536.049468][ T2940] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002e [ 536.077482][ T2938] FAULT_INJECTION: forcing a failure. [ 536.077482][ T2938] name failslab, interval 1, probability 0, space 0, times 0 [ 536.090560][ T2938] CPU: 0 PID: 2938 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 536.100980][ T2938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 536.111024][ T2938] Call Trace: [ 536.114406][ T2938] dump_stack_lvl+0x1e2/0x24b [ 536.119082][ T2938] ? bfq_pos_tree_add_move+0x43e/0x43e [ 536.124569][ T2938] ? selinux_kernfs_init_security+0x1a8/0x760 [ 536.130691][ T2938] dump_stack+0x15/0x17 [ 536.134858][ T2938] should_fail+0x3c0/0x510 [ 536.139290][ T2938] ? __kernfs_new_node+0x99/0x6e0 [ 536.144566][ T2938] __should_failslab+0x9f/0xe0 [ 536.149343][ T2938] should_failslab+0x9/0x20 [ 536.153976][ T2938] __kmalloc_track_caller+0x5f/0x350 [ 536.159279][ T2938] kstrdup_const+0x55/0x90 [ 536.163963][ T2938] __kernfs_new_node+0x99/0x6e0 [ 536.169606][ T2938] ? is_module_text_address+0xe1/0x140 [ 536.175168][ T2938] ? kernfs_new_node+0x170/0x170 [ 536.180288][ T2938] ? ptr_to_hashval+0x60/0x60 [ 536.185137][ T2938] ? mutex_lock+0xb2/0x1e0 [ 536.189587][ T2938] ? snprintf+0xd6/0x120 [ 536.193910][ T2938] ? mutex_unlock+0x29/0xf0 [ 536.198426][ T2938] kernfs_new_node+0x97/0x170 [ 536.203235][ T2938] __kernfs_create_file+0x4a/0x270 [ 536.208440][ T2938] cgroup_addrm_files+0xab8/0xfe0 [ 536.213498][ T2938] ? ____kasan_kmalloc+0xdc/0x110 [ 536.218529][ T2938] ? __kasan_kmalloc+0x9/0x10 [ 536.223833][ T2938] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 536.229735][ T2938] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 536.235996][ T2938] ? delete_node+0x759/0x7b0 [ 536.240578][ T2938] ? __kasan_check_read+0x11/0x20 [ 536.245898][ T2938] ? idr_replace+0x1c4/0x230 [ 536.250698][ T2938] ? idr_get_next+0x4b0/0x4b0 [ 536.255443][ T2938] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 536.260554][ T2938] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 536.265744][ T2938] css_populate_dir+0x137/0x370 [ 536.270577][ T2938] cgroup_apply_control_enable+0x8b9/0x12f0 [ 536.276606][ T2938] cgroup_apply_control+0x8e/0x7e0 [ 536.281923][ T2938] ? css_next_child+0x160/0x160 [ 536.286764][ T2938] ? stack_trace_save+0x12d/0x1f0 [ 536.291789][ T2938] ? io_schedule+0x120/0x120 [ 536.296527][ T2938] ? kernfs_fop_write_iter+0x15e/0x410 [ 536.301975][ T2938] ? __kasan_check_write+0x14/0x20 [ 536.307093][ T2938] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 536.312558][ T2938] cgroup_subtree_control_write+0xd19/0x1310 [ 536.318753][ T2938] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 536.324760][ T2938] ? __kasan_check_write+0x14/0x20 [ 536.330046][ T2938] ? _copy_from_iter+0x3fb/0xd60 [ 536.335062][ T2938] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 536.341261][ T2938] cgroup_file_write+0x28e/0x590 [ 536.346401][ T2938] ? cgroup_seqfile_stop+0xc0/0xc0 [ 536.351621][ T2938] ? mutex_trylock+0x180/0x180 [ 536.356506][ T2938] ? __kasan_check_write+0x14/0x20 [ 536.361625][ T2938] kernfs_fop_write_iter+0x2d0/0x410 [ 536.367550][ T2938] ? cgroup_seqfile_stop+0xc0/0xc0 [ 536.372686][ T2938] vfs_write+0xc4a/0xf80 [ 536.376956][ T2938] ? slab_free_freelist_hook+0xcc/0x1a0 [ 536.382611][ T2938] ? kernel_write+0x420/0x420 [ 536.387361][ T2938] ? do_sys_openat2+0x397/0x470 [ 536.393224][ T2938] ? __kasan_check_read+0x11/0x20 [ 536.398510][ T2938] ? __fdget_pos+0x27e/0x310 [ 536.403202][ T2938] ksys_write+0x198/0x2c0 [ 536.408160][ T2938] ? __ia32_sys_read+0x90/0x90 [ 536.413207][ T2938] ? debug_smp_processor_id+0x17/0x20 [ 536.418872][ T2938] __x64_sys_write+0x7b/0x90 [ 536.423469][ T2938] do_syscall_64+0x34/0x70 [ 536.428150][ T2938] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 536.434028][ T2938] RIP: 0033:0x7f48883727a9 [ 536.438584][ T2938] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 536.458288][ T2938] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 536.467335][ T2938] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 536.475400][ T2938] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 536.483358][ T2938] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 536.491347][ T2938] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 536.499438][ T2938] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002e [ 536.507826][ T2938] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 536.557119][ T2939] FAULT_INJECTION: forcing a failure. [ 536.557119][ T2939] name failslab, interval 1, probability 0, space 0, times 0 [ 536.569834][ T2939] CPU: 1 PID: 2939 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 536.580562][ T2939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 536.591345][ T2939] Call Trace: [ 536.594749][ T2939] dump_stack_lvl+0x1e2/0x24b [ 536.600072][ T2939] ? bfq_pos_tree_add_move+0x43e/0x43e [ 536.606093][ T2939] ? selinux_kernfs_init_security+0x1a8/0x760 [ 536.612363][ T2939] dump_stack+0x15/0x17 [ 536.616522][ T2939] should_fail+0x3c0/0x510 [ 536.620936][ T2939] ? __kernfs_new_node+0x99/0x6e0 [ 536.626070][ T2939] __should_failslab+0x9f/0xe0 [ 536.631197][ T2939] should_failslab+0x9/0x20 [ 536.635836][ T2939] __kmalloc_track_caller+0x5f/0x350 [ 536.641337][ T2939] kstrdup_const+0x55/0x90 [ 536.645933][ T2939] __kernfs_new_node+0x99/0x6e0 [ 536.650957][ T2939] ? is_module_text_address+0xe1/0x140 [ 536.656658][ T2939] ? kernfs_new_node+0x170/0x170 [ 536.662027][ T2939] ? ptr_to_hashval+0x60/0x60 [ 536.666709][ T2939] ? mutex_lock+0xb2/0x1e0 [ 536.671255][ T2939] ? snprintf+0xd6/0x120 [ 536.675605][ T2939] ? mutex_unlock+0x29/0xf0 [ 536.680380][ T2939] kernfs_new_node+0x97/0x170 [ 536.685222][ T2939] __kernfs_create_file+0x4a/0x270 [ 536.690541][ T2939] cgroup_addrm_files+0xab8/0xfe0 [ 536.695666][ T2939] ? ____kasan_kmalloc+0xdc/0x110 [ 536.700769][ T2939] ? __kasan_kmalloc+0x9/0x10 [ 536.705429][ T2939] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 536.711052][ T2939] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 536.717292][ T2939] ? delete_node+0x759/0x7b0 [ 536.721894][ T2939] ? __kasan_check_read+0x11/0x20 [ 536.726928][ T2939] ? idr_replace+0x1c4/0x230 [ 536.731506][ T2939] ? idr_get_next+0x4b0/0x4b0 [ 536.736188][ T2939] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 536.741218][ T2939] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 536.746409][ T2939] css_populate_dir+0x137/0x370 [ 536.751260][ T2939] cgroup_apply_control_enable+0x8b9/0x12f0 [ 536.757167][ T2939] cgroup_apply_control+0x8e/0x7e0 [ 536.762282][ T2939] ? css_next_child+0x160/0x160 [ 536.767128][ T2939] ? io_schedule+0x120/0x120 [ 536.771704][ T2939] ? kernfs_fop_write_iter+0x15e/0x410 [ 536.779246][ T2939] ? __kasan_check_write+0x14/0x20 [ 536.784354][ T2939] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 536.789631][ T2939] cgroup_subtree_control_write+0xd19/0x1310 [ 536.795590][ T2939] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 536.801558][ T2939] ? __kasan_check_write+0x14/0x20 [ 536.806656][ T2939] ? _copy_from_iter+0x3fb/0xd60 [ 536.811584][ T2939] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 536.817675][ T2939] cgroup_file_write+0x28e/0x590 [ 536.822725][ T2939] ? cgroup_seqfile_stop+0xc0/0xc0 [ 536.827995][ T2939] ? mutex_trylock+0x180/0x180 [ 536.832931][ T2939] ? __kasan_check_write+0x14/0x20 [ 536.838049][ T2939] kernfs_fop_write_iter+0x2d0/0x410 [ 536.843335][ T2939] ? cgroup_seqfile_stop+0xc0/0xc0 [ 536.848446][ T2939] vfs_write+0xc4a/0xf80 [ 536.852712][ T2939] ? kernel_write+0x420/0x420 [ 536.857391][ T2939] ? do_sys_openat2+0x397/0x470 [ 536.862327][ T2939] ? __kasan_check_read+0x11/0x20 [ 536.867336][ T2939] ? __fdget_pos+0x27e/0x310 [ 536.871906][ T2939] ksys_write+0x198/0x2c0 [ 536.876217][ T2939] ? __ia32_sys_read+0x90/0x90 [ 536.880967][ T2939] ? debug_smp_processor_id+0x17/0x20 [ 536.886336][ T2939] __x64_sys_write+0x7b/0x90 [ 536.890917][ T2939] do_syscall_64+0x34/0x70 [ 536.895412][ T2939] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 536.901291][ T2939] RIP: 0033:0x7f48883727a9 [ 536.905706][ T2939] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 536.925316][ T2939] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 536.933889][ T2939] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 536.941858][ T2939] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 536.949826][ T2939] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 536.957787][ T2939] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 536.965753][ T2939] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000033 [ 536.973860][ T2939] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 537.017244][ T2942] FAULT_INJECTION: forcing a failure. [ 537.017244][ T2942] name failslab, interval 1, probability 0, space 0, times 0 [ 537.030730][ T2942] CPU: 1 PID: 2942 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 537.041428][ T2942] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 537.052178][ T2942] Call Trace: [ 537.055458][ T2942] dump_stack_lvl+0x1e2/0x24b [ 537.060117][ T2942] ? bfq_pos_tree_add_move+0x43e/0x43e [ 537.065558][ T2942] ? selinux_kernfs_init_security+0x1a8/0x760 [ 537.071651][ T2942] dump_stack+0x15/0x17 [ 537.075816][ T2942] should_fail+0x3c0/0x510 [ 537.080227][ T2942] ? __kernfs_new_node+0x99/0x6e0 [ 537.085245][ T2942] __should_failslab+0x9f/0xe0 [ 537.090119][ T2942] should_failslab+0x9/0x20 [ 537.094721][ T2942] __kmalloc_track_caller+0x5f/0x350 [ 537.099994][ T2942] kstrdup_const+0x55/0x90 [ 537.104396][ T2942] __kernfs_new_node+0x99/0x6e0 [ 537.109426][ T2942] ? is_module_text_address+0xe1/0x140 [ 537.114991][ T2942] ? kernfs_new_node+0x170/0x170 [ 537.119919][ T2942] ? ptr_to_hashval+0x60/0x60 [ 537.124576][ T2942] ? mutex_lock+0xb2/0x1e0 [ 537.128974][ T2942] ? snprintf+0xd6/0x120 [ 537.133389][ T2942] ? mutex_unlock+0x29/0xf0 [ 537.138081][ T2942] kernfs_new_node+0x97/0x170 [ 537.142837][ T2942] __kernfs_create_file+0x4a/0x270 [ 537.147931][ T2942] cgroup_addrm_files+0xab8/0xfe0 [ 537.152944][ T2942] ? ____kasan_kmalloc+0xdc/0x110 [ 537.157963][ T2942] ? __kasan_kmalloc+0x9/0x10 [ 537.162619][ T2942] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 537.168164][ T2942] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 537.174378][ T2942] ? delete_node+0x759/0x7b0 [ 537.178954][ T2942] ? __kasan_check_read+0x11/0x20 [ 537.183959][ T2942] ? idr_replace+0x1c4/0x230 [ 537.188542][ T2942] ? idr_get_next+0x4b0/0x4b0 [ 537.193302][ T2942] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 537.198324][ T2942] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 537.203602][ T2942] css_populate_dir+0x137/0x370 [ 537.208456][ T2942] cgroup_apply_control_enable+0x8b9/0x12f0 [ 537.214358][ T2942] cgroup_apply_control+0x8e/0x7e0 [ 537.219486][ T2942] ? css_next_child+0x160/0x160 [ 537.224347][ T2942] ? stack_trace_save+0x12d/0x1f0 [ 537.229387][ T2942] ? io_schedule+0x120/0x120 [ 537.234014][ T2942] ? kernfs_fop_write_iter+0x15e/0x410 [ 537.239833][ T2942] ? __kasan_check_write+0x14/0x20 [ 537.244942][ T2942] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 537.250220][ T2942] cgroup_subtree_control_write+0xd19/0x1310 [ 537.256332][ T2942] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 537.262305][ T2942] ? __kasan_check_write+0x14/0x20 [ 537.267402][ T2942] ? _copy_from_iter+0x3fb/0xd60 [ 537.272325][ T2942] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 537.278287][ T2942] cgroup_file_write+0x28e/0x590 [ 537.283207][ T2942] ? cgroup_seqfile_stop+0xc0/0xc0 [ 537.288317][ T2942] ? mutex_trylock+0x180/0x180 [ 537.293167][ T2942] ? __kasan_check_write+0x14/0x20 [ 537.298393][ T2942] kernfs_fop_write_iter+0x2d0/0x410 [ 537.303794][ T2942] ? cgroup_seqfile_stop+0xc0/0xc0 [ 537.309102][ T2942] vfs_write+0xc4a/0xf80 [ 537.313395][ T2942] ? slab_free_freelist_hook+0xcc/0x1a0 [ 537.318930][ T2942] ? kernel_write+0x420/0x420 [ 537.323690][ T2942] ? do_sys_openat2+0x397/0x470 [ 537.328539][ T2942] ? __kasan_check_read+0x11/0x20 [ 537.333568][ T2942] ? __fdget_pos+0x27e/0x310 [ 537.338171][ T2942] ksys_write+0x198/0x2c0 [ 537.343061][ T2942] ? __ia32_sys_read+0x90/0x90 [ 537.347858][ T2942] ? debug_smp_processor_id+0x17/0x20 [ 537.353398][ T2942] __x64_sys_write+0x7b/0x90 [ 537.357977][ T2942] do_syscall_64+0x34/0x70 [ 537.362498][ T2942] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 537.368429][ T2942] RIP: 0033:0x7f48883727a9 [ 537.372931][ T2942] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 537.392697][ T2942] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 537.401184][ T2942] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 537.409250][ T2942] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 537.417551][ T2942] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 537.425561][ T2942] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 537.433707][ T2942] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003f [ 537.441816][ T2942] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 537.477223][ T2944] FAULT_INJECTION: forcing a failure. [ 537.477223][ T2944] name failslab, interval 1, probability 0, space 0, times 0 [ 537.490432][ T2944] CPU: 0 PID: 2944 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 537.501149][ T2944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 537.511395][ T2944] Call Trace: [ 537.514695][ T2944] dump_stack_lvl+0x1e2/0x24b [ 537.519376][ T2944] ? bfq_pos_tree_add_move+0x43e/0x43e [ 537.524844][ T2944] ? selinux_kernfs_init_security+0x1a8/0x760 [ 537.531171][ T2944] dump_stack+0x15/0x17 [ 537.535410][ T2944] should_fail+0x3c0/0x510 [ 537.539909][ T2944] ? __kernfs_new_node+0x99/0x6e0 [ 537.545011][ T2944] __should_failslab+0x9f/0xe0 [ 537.549766][ T2944] should_failslab+0x9/0x20 [ 537.554273][ T2944] __kmalloc_track_caller+0x5f/0x350 [ 537.559547][ T2944] kstrdup_const+0x55/0x90 [ 537.564050][ T2944] __kernfs_new_node+0x99/0x6e0 [ 537.568899][ T2944] ? is_module_text_address+0xe1/0x140 [ 537.574338][ T2944] ? kernfs_new_node+0x170/0x170 [ 537.579374][ T2944] ? ptr_to_hashval+0x60/0x60 [ 537.584036][ T2944] ? mutex_lock+0xb2/0x1e0 [ 537.588521][ T2944] ? snprintf+0xd6/0x120 [ 537.592830][ T2944] ? mutex_unlock+0x29/0xf0 [ 537.597331][ T2944] kernfs_new_node+0x97/0x170 [ 537.601987][ T2944] __kernfs_create_file+0x4a/0x270 [ 537.607091][ T2944] cgroup_addrm_files+0xab8/0xfe0 [ 537.612178][ T2944] ? ____kasan_kmalloc+0xdc/0x110 [ 537.617178][ T2944] ? __kasan_kmalloc+0x9/0x10 [ 537.621841][ T2944] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 537.627394][ T2944] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 537.633570][ T2944] ? delete_node+0x759/0x7b0 [ 537.638345][ T2944] ? __kasan_check_read+0x11/0x20 [ 537.643362][ T2944] ? idr_replace+0x1c4/0x230 [ 537.647939][ T2944] ? idr_get_next+0x4b0/0x4b0 [ 537.652598][ T2944] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 537.657697][ T2944] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 537.662878][ T2944] css_populate_dir+0x137/0x370 [ 537.667719][ T2944] cgroup_apply_control_enable+0x8b9/0x12f0 [ 537.673595][ T2944] cgroup_apply_control+0x8e/0x7e0 [ 537.678698][ T2944] ? css_next_child+0x160/0x160 [ 537.684160][ T2944] ? stack_trace_save+0x12d/0x1f0 [ 537.692807][ T2944] ? io_schedule+0x120/0x120 [ 537.697495][ T2944] ? kernfs_fop_write_iter+0x15e/0x410 [ 537.703222][ T2944] ? __kasan_check_write+0x14/0x20 [ 537.708325][ T2944] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 537.713681][ T2944] cgroup_subtree_control_write+0xd19/0x1310 [ 537.720042][ T2944] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 537.726539][ T2944] ? __kasan_check_write+0x14/0x20 [ 537.731660][ T2944] ? _copy_from_iter+0x3fb/0xd60 [ 537.736688][ T2944] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 537.742671][ T2944] cgroup_file_write+0x28e/0x590 [ 537.747596][ T2944] ? cgroup_seqfile_stop+0xc0/0xc0 [ 537.752683][ T2944] ? mutex_trylock+0x180/0x180 [ 537.757613][ T2944] ? __kasan_check_write+0x14/0x20 [ 537.762704][ T2944] kernfs_fop_write_iter+0x2d0/0x410 [ 537.768431][ T2944] ? cgroup_seqfile_stop+0xc0/0xc0 [ 537.773548][ T2944] vfs_write+0xc4a/0xf80 [ 537.777781][ T2944] ? slab_free_freelist_hook+0xcc/0x1a0 [ 537.783310][ T2944] ? kernel_write+0x420/0x420 [ 537.787970][ T2944] ? do_sys_openat2+0x397/0x470 [ 537.792804][ T2944] ? __kasan_check_read+0x11/0x20 [ 537.797814][ T2944] ? __fdget_pos+0x27e/0x310 [ 537.802380][ T2944] ksys_write+0x198/0x2c0 [ 537.806861][ T2944] ? __ia32_sys_read+0x90/0x90 [ 537.811652][ T2944] ? debug_smp_processor_id+0x17/0x20 [ 537.817026][ T2944] __x64_sys_write+0x7b/0x90 [ 537.821609][ T2944] do_syscall_64+0x34/0x70 [ 537.826051][ T2944] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 537.832021][ T2944] RIP: 0033:0x7f48883727a9 [ 537.836437][ T2944] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 537.856138][ T2944] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 537.864547][ T2944] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 537.872657][ T2944] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 537.880619][ T2944] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 537.888572][ T2944] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 537.896525][ T2944] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002f [ 537.904800][ T2944] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 537.947229][ T2946] FAULT_INJECTION: forcing a failure. [ 537.947229][ T2946] name failslab, interval 1, probability 0, space 0, times 0 [ 537.960356][ T2946] CPU: 1 PID: 2946 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 537.970846][ T2946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 537.980999][ T2946] Call Trace: [ 537.984305][ T2946] dump_stack_lvl+0x1e2/0x24b [ 537.989112][ T2946] ? panic+0x7d7/0x7d7 [ 537.993190][ T2946] ? bfq_pos_tree_add_move+0x43e/0x43e [ 537.998655][ T2946] ? selinux_kernfs_init_security+0x1a8/0x760 [ 538.004709][ T2946] dump_stack+0x15/0x17 [ 538.008848][ T2946] should_fail+0x3c0/0x510 [ 538.013268][ T2946] __should_failslab+0x9f/0xe0 [ 538.018345][ T2946] should_failslab+0x9/0x20 [ 538.023217][ T2946] kmem_cache_alloc+0x3f/0x300 [ 538.027969][ T2946] ? __kernfs_new_node+0xdb/0x6e0 [ 538.033100][ T2946] __kernfs_new_node+0xdb/0x6e0 [ 538.037967][ T2946] ? is_module_text_address+0xe1/0x140 [ 538.043420][ T2946] ? kernfs_new_node+0x170/0x170 [ 538.048372][ T2946] ? ptr_to_hashval+0x60/0x60 [ 538.053040][ T2946] ? arch_stack_walk+0xf8/0x140 [ 538.057872][ T2946] ? snprintf+0xd6/0x120 [ 538.062099][ T2946] kernfs_new_node+0x97/0x170 [ 538.066804][ T2946] __kernfs_create_file+0x4a/0x270 [ 538.071914][ T2946] cgroup_addrm_files+0xab8/0xfe0 [ 538.076986][ T2946] ? ____kasan_kmalloc+0xdc/0x110 [ 538.081988][ T2946] ? __kasan_kmalloc+0x9/0x10 [ 538.086651][ T2946] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 538.092191][ T2946] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 538.098338][ T2946] ? delete_node+0x759/0x7b0 [ 538.102921][ T2946] ? __kasan_check_read+0x11/0x20 [ 538.107943][ T2946] ? delete_node+0x759/0x7b0 [ 538.112520][ T2946] ? __kasan_check_write+0x14/0x20 [ 538.117627][ T2946] ? idr_replace+0x1c4/0x230 [ 538.122316][ T2946] ? idr_get_next+0x4b0/0x4b0 [ 538.127077][ T2946] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 538.132160][ T2946] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 538.137353][ T2946] css_populate_dir+0x137/0x370 [ 538.142208][ T2946] cgroup_apply_control_enable+0x8b9/0x12f0 [ 538.148198][ T2946] cgroup_apply_control+0x8e/0x7e0 [ 538.153382][ T2946] ? css_next_child+0x160/0x160 [ 538.158229][ T2946] ? io_schedule+0x120/0x120 [ 538.162804][ T2946] ? kernfs_fop_write_iter+0x15e/0x410 [ 538.168460][ T2946] ? __kasan_check_write+0x14/0x20 [ 538.173555][ T2946] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 538.178821][ T2946] cgroup_subtree_control_write+0xd19/0x1310 [ 538.184779][ T2946] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 538.190740][ T2946] ? __kasan_check_write+0x14/0x20 [ 538.195827][ T2946] ? _copy_from_iter+0x3fb/0xd60 [ 538.200956][ T2946] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 538.206923][ T2946] cgroup_file_write+0x28e/0x590 [ 538.212022][ T2946] ? cgroup_seqfile_stop+0xc0/0xc0 [ 538.217119][ T2946] ? mutex_trylock+0x180/0x180 [ 538.221866][ T2946] ? __kasan_check_write+0x14/0x20 [ 538.227048][ T2946] kernfs_fop_write_iter+0x2d0/0x410 [ 538.232310][ T2946] ? cgroup_seqfile_stop+0xc0/0xc0 [ 538.237411][ T2946] vfs_write+0xc4a/0xf80 [ 538.241639][ T2946] ? slab_free_freelist_hook+0xcc/0x1a0 [ 538.247353][ T2946] ? kernel_write+0x420/0x420 [ 538.252023][ T2946] ? do_sys_openat2+0x397/0x470 [ 538.257034][ T2946] ? __kasan_check_read+0x11/0x20 [ 538.262135][ T2946] ? __fdget_pos+0x27e/0x310 [ 538.267051][ T2946] ksys_write+0x198/0x2c0 [ 538.271359][ T2946] ? __ia32_sys_read+0x90/0x90 [ 538.276097][ T2946] ? debug_smp_processor_id+0x17/0x20 [ 538.281459][ T2946] __x64_sys_write+0x7b/0x90 [ 538.286038][ T2946] do_syscall_64+0x34/0x70 [ 538.290429][ T2946] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 538.296312][ T2946] RIP: 0033:0x7f48883727a9 [ 538.300823][ T2946] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 538.320611][ T2946] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 538.329277][ T2946] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 538.337229][ T2946] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 538.345285][ T2946] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 538.353585][ T2946] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 538.361628][ T2946] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000034 [ 538.369749][ T2946] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 538.417179][ T2941] FAULT_INJECTION: forcing a failure. [ 538.417179][ T2941] name failslab, interval 1, probability 0, space 0, times 0 [ 538.430057][ T2941] CPU: 0 PID: 2941 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 538.440455][ T2941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 538.450488][ T2941] Call Trace: [ 538.453767][ T2941] dump_stack_lvl+0x1e2/0x24b [ 538.458438][ T2941] ? panic+0x7d7/0x7d7 [ 538.462505][ T2941] ? bfq_pos_tree_add_move+0x43e/0x43e [ 538.467937][ T2941] ? selinux_kernfs_init_security+0x1a8/0x760 [ 538.474075][ T2941] dump_stack+0x15/0x17 [ 538.478311][ T2941] should_fail+0x3c0/0x510 [ 538.482706][ T2941] __should_failslab+0x9f/0xe0 [ 538.487576][ T2941] should_failslab+0x9/0x20 [ 538.492142][ T2941] kmem_cache_alloc+0x3f/0x300 [ 538.496880][ T2941] ? __kernfs_new_node+0xdb/0x6e0 [ 538.501876][ T2941] __kernfs_new_node+0xdb/0x6e0 [ 538.506706][ T2941] ? is_module_text_address+0xe1/0x140 [ 538.512135][ T2941] ? kernfs_new_node+0x170/0x170 [ 538.517134][ T2941] ? ptr_to_hashval+0x60/0x60 [ 538.521822][ T2941] ? arch_stack_walk+0xf8/0x140 [ 538.526857][ T2941] ? snprintf+0xd6/0x120 [ 538.531130][ T2941] kernfs_new_node+0x97/0x170 [ 538.535803][ T2941] __kernfs_create_file+0x4a/0x270 [ 538.540915][ T2941] cgroup_addrm_files+0xab8/0xfe0 [ 538.545916][ T2941] ? ____kasan_kmalloc+0xdc/0x110 [ 538.550916][ T2941] ? __kasan_kmalloc+0x9/0x10 [ 538.555568][ T2941] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 538.561195][ T2941] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 538.567668][ T2941] ? delete_node+0x759/0x7b0 [ 538.572238][ T2941] ? __kasan_check_read+0x11/0x20 [ 538.577235][ T2941] ? delete_node+0x759/0x7b0 [ 538.581854][ T2941] ? __kasan_check_write+0x14/0x20 [ 538.586939][ T2941] ? idr_replace+0x1c4/0x230 [ 538.591514][ T2941] ? idr_get_next+0x4b0/0x4b0 [ 538.596166][ T2941] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 538.601166][ T2941] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 538.606343][ T2941] css_populate_dir+0x137/0x370 [ 538.611170][ T2941] cgroup_apply_control_enable+0x8b9/0x12f0 [ 538.617037][ T2941] cgroup_apply_control+0x8e/0x7e0 [ 538.622134][ T2941] ? css_next_child+0x160/0x160 [ 538.626970][ T2941] ? io_schedule+0x120/0x120 [ 538.631537][ T2941] ? kernfs_fop_write_iter+0x15e/0x410 [ 538.636976][ T2941] ? __kasan_check_write+0x14/0x20 [ 538.642081][ T2941] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 538.647341][ T2941] cgroup_subtree_control_write+0xd19/0x1310 [ 538.653398][ T2941] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 538.659372][ T2941] ? __kasan_check_write+0x14/0x20 [ 538.664656][ T2941] ? _copy_from_iter+0x3fb/0xd60 [ 538.669568][ T2941] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 538.675523][ T2941] cgroup_file_write+0x28e/0x590 [ 538.680435][ T2941] ? cgroup_seqfile_stop+0xc0/0xc0 [ 538.685519][ T2941] ? mutex_trylock+0x180/0x180 [ 538.690265][ T2941] ? __kasan_check_write+0x14/0x20 [ 538.695362][ T2941] kernfs_fop_write_iter+0x2d0/0x410 [ 538.700621][ T2941] ? cgroup_seqfile_stop+0xc0/0xc0 [ 538.705707][ T2941] vfs_write+0xc4a/0xf80 [ 538.709928][ T2941] ? kernel_write+0x420/0x420 [ 538.715012][ T2941] ? do_sys_openat2+0x397/0x470 [ 538.719837][ T2941] ? __kasan_check_read+0x11/0x20 [ 538.724835][ T2941] ? __fdget_pos+0x27e/0x310 [ 538.729401][ T2941] ksys_write+0x198/0x2c0 [ 538.733712][ T2941] ? __ia32_sys_read+0x90/0x90 [ 538.738452][ T2941] ? debug_smp_processor_id+0x17/0x20 [ 538.743829][ T2941] __x64_sys_write+0x7b/0x90 [ 538.748397][ T2941] do_syscall_64+0x34/0x70 [ 538.752793][ T2941] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 538.758675][ T2941] RIP: 0033:0x7f48883727a9 [ 538.763069][ T2941] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 538.782837][ T2941] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 538.791238][ T2941] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 538.799196][ T2941] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 538.807228][ T2941] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 538.815283][ T2941] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 538.823319][ T2941] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002e [ 538.831466][ T2941] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 538.877015][ T2943] FAULT_INJECTION: forcing a failure. [ 538.877015][ T2943] name failslab, interval 1, probability 0, space 0, times 0 [ 538.889652][ T2943] CPU: 1 PID: 2943 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 538.900049][ T2943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 538.910099][ T2943] Call Trace: [ 538.913378][ T2943] dump_stack_lvl+0x1e2/0x24b [ 538.918037][ T2943] ? bfq_pos_tree_add_move+0x43e/0x43e [ 538.923478][ T2943] ? selinux_kernfs_init_security+0x1a8/0x760 [ 538.929824][ T2943] dump_stack+0x15/0x17 [ 538.933966][ T2943] should_fail+0x3c0/0x510 [ 538.938370][ T2943] ? __kernfs_new_node+0x99/0x6e0 [ 538.943385][ T2943] __should_failslab+0x9f/0xe0 [ 538.948224][ T2943] should_failslab+0x9/0x20 [ 538.952726][ T2943] __kmalloc_track_caller+0x5f/0x350 [ 538.958018][ T2943] kstrdup_const+0x55/0x90 [ 538.962430][ T2943] __kernfs_new_node+0x99/0x6e0 [ 538.967362][ T2943] ? is_module_text_address+0xe1/0x140 [ 538.972945][ T2943] ? kernfs_new_node+0x170/0x170 [ 538.977978][ T2943] ? ptr_to_hashval+0x60/0x60 [ 538.982651][ T2943] ? mutex_lock+0xb2/0x1e0 [ 538.987069][ T2943] ? snprintf+0xd6/0x120 [ 538.991309][ T2943] ? mutex_unlock+0x29/0xf0 [ 538.996007][ T2943] kernfs_new_node+0x97/0x170 [ 539.000687][ T2943] __kernfs_create_file+0x4a/0x270 [ 539.006038][ T2943] cgroup_addrm_files+0xab8/0xfe0 [ 539.011053][ T2943] ? ____kasan_kmalloc+0xdc/0x110 [ 539.016059][ T2943] ? __kasan_kmalloc+0x9/0x10 [ 539.020739][ T2943] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 539.026302][ T2943] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 539.032900][ T2943] ? delete_node+0x759/0x7b0 [ 539.037488][ T2943] ? __kasan_check_read+0x11/0x20 [ 539.042512][ T2943] ? idr_replace+0x1c4/0x230 [ 539.047090][ T2943] ? idr_get_next+0x4b0/0x4b0 [ 539.051855][ T2943] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 539.056873][ T2943] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 539.062377][ T2943] css_populate_dir+0x137/0x370 [ 539.067424][ T2943] cgroup_apply_control_enable+0x8b9/0x12f0 [ 539.073312][ T2943] cgroup_apply_control+0x8e/0x7e0 [ 539.078416][ T2943] ? css_next_child+0x160/0x160 [ 539.083261][ T2943] ? io_schedule+0x120/0x120 [ 539.087842][ T2943] ? kernfs_fop_write_iter+0x15e/0x410 [ 539.093303][ T2943] ? __kasan_check_write+0x14/0x20 [ 539.098574][ T2943] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 539.103952][ T2943] cgroup_subtree_control_write+0xd19/0x1310 [ 539.109989][ T2943] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 539.115966][ T2943] ? __kasan_check_write+0x14/0x20 [ 539.121281][ T2943] ? _copy_from_iter+0x3fb/0xd60 [ 539.126387][ T2943] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 539.132377][ T2943] cgroup_file_write+0x28e/0x590 [ 539.137309][ T2943] ? cgroup_seqfile_stop+0xc0/0xc0 [ 539.142509][ T2943] ? mutex_trylock+0x180/0x180 [ 539.147483][ T2943] ? __kasan_check_write+0x14/0x20 [ 539.152583][ T2943] kernfs_fop_write_iter+0x2d0/0x410 [ 539.157956][ T2943] ? cgroup_seqfile_stop+0xc0/0xc0 [ 539.163073][ T2943] vfs_write+0xc4a/0xf80 [ 539.167362][ T2943] ? slab_free_freelist_hook+0xcc/0x1a0 [ 539.172915][ T2943] ? kernel_write+0x420/0x420 [ 539.177593][ T2943] ? do_sys_openat2+0x397/0x470 [ 539.182525][ T2943] ? __kasan_check_read+0x11/0x20 [ 539.187541][ T2943] ? __fdget_pos+0x27e/0x310 [ 539.192122][ T2943] ksys_write+0x198/0x2c0 [ 539.196461][ T2943] ? __ia32_sys_read+0x90/0x90 [ 539.201213][ T2943] ? debug_smp_processor_id+0x17/0x20 [ 539.206586][ T2943] __x64_sys_write+0x7b/0x90 [ 539.211731][ T2943] do_syscall_64+0x34/0x70 [ 539.216236][ T2943] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 539.222284][ T2943] RIP: 0033:0x7f48883727a9 [ 539.226702][ T2943] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 539.246493][ T2943] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 539.254998][ T2943] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 539.263516][ T2943] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 539.271677][ T2943] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 539.280024][ T2943] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 539.288803][ T2943] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000032 [ 539.296885][ T2943] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 539.347267][ T2947] FAULT_INJECTION: forcing a failure. [ 539.347267][ T2947] name failslab, interval 1, probability 0, space 0, times 0 [ 539.360186][ T2947] CPU: 0 PID: 2947 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 539.370884][ T2947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 539.381025][ T2947] Call Trace: [ 539.384330][ T2947] dump_stack_lvl+0x1e2/0x24b [ 539.389004][ T2947] ? panic+0x7d7/0x7d7 [ 539.393157][ T2947] ? bfq_pos_tree_add_move+0x43e/0x43e [ 539.398608][ T2947] ? selinux_kernfs_init_security+0x1a8/0x760 [ 539.404834][ T2947] dump_stack+0x15/0x17 [ 539.408986][ T2947] should_fail+0x3c0/0x510 [ 539.413384][ T2947] __should_failslab+0x9f/0xe0 [ 539.418285][ T2947] should_failslab+0x9/0x20 [ 539.422795][ T2947] kmem_cache_alloc+0x3f/0x300 [ 539.427908][ T2947] ? __kernfs_new_node+0xdb/0x6e0 [ 539.432915][ T2947] __kernfs_new_node+0xdb/0x6e0 [ 539.437742][ T2947] ? is_module_text_address+0xe1/0x140 [ 539.443273][ T2947] ? kernfs_new_node+0x170/0x170 [ 539.448337][ T2947] ? ptr_to_hashval+0x60/0x60 [ 539.453021][ T2947] ? arch_stack_walk+0xf8/0x140 [ 539.457861][ T2947] ? snprintf+0xd6/0x120 [ 539.462263][ T2947] kernfs_new_node+0x97/0x170 [ 539.467017][ T2947] __kernfs_create_file+0x4a/0x270 [ 539.472115][ T2947] cgroup_addrm_files+0xab8/0xfe0 [ 539.477125][ T2947] ? ____kasan_kmalloc+0xdc/0x110 [ 539.482236][ T2947] ? __kasan_kmalloc+0x9/0x10 [ 539.487104][ T2947] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 539.492948][ T2947] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 539.499104][ T2947] ? delete_node+0x759/0x7b0 [ 539.503770][ T2947] ? __kasan_check_read+0x11/0x20 [ 539.508903][ T2947] ? delete_node+0x759/0x7b0 [ 539.513480][ T2947] ? __kasan_check_write+0x14/0x20 [ 539.518601][ T2947] ? idr_replace+0x1c4/0x230 [ 539.523192][ T2947] ? idr_get_next+0x4b0/0x4b0 [ 539.527872][ T2947] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 539.532891][ T2947] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 539.538078][ T2947] css_populate_dir+0x137/0x370 [ 539.543098][ T2947] cgroup_apply_control_enable+0x8b9/0x12f0 [ 539.549007][ T2947] cgroup_apply_control+0x8e/0x7e0 [ 539.554147][ T2947] ? css_next_child+0x160/0x160 [ 539.559259][ T2947] ? stack_trace_save+0x12d/0x1f0 [ 539.564271][ T2947] ? io_schedule+0x120/0x120 [ 539.569193][ T2947] ? kernfs_fop_write_iter+0x15e/0x410 [ 539.574642][ T2947] ? __kasan_check_write+0x14/0x20 [ 539.579747][ T2947] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 539.585031][ T2947] cgroup_subtree_control_write+0xd19/0x1310 [ 539.591004][ T2947] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 539.596968][ T2947] ? __kasan_check_write+0x14/0x20 [ 539.602063][ T2947] ? _copy_from_iter+0x3fb/0xd60 [ 539.606994][ T2947] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 539.612954][ T2947] cgroup_file_write+0x28e/0x590 [ 539.617872][ T2947] ? cgroup_seqfile_stop+0xc0/0xc0 [ 539.623150][ T2947] ? mutex_trylock+0x180/0x180 [ 539.627993][ T2947] ? __kasan_check_write+0x14/0x20 [ 539.633196][ T2947] kernfs_fop_write_iter+0x2d0/0x410 [ 539.638471][ T2947] ? cgroup_seqfile_stop+0xc0/0xc0 [ 539.643576][ T2947] vfs_write+0xc4a/0xf80 [ 539.647813][ T2947] ? slab_free_freelist_hook+0xcc/0x1a0 [ 539.653451][ T2947] ? kernel_write+0x420/0x420 [ 539.658110][ T2947] ? do_sys_openat2+0x397/0x470 [ 539.662959][ T2947] ? __kasan_check_read+0x11/0x20 [ 539.667974][ T2947] ? __fdget_pos+0x27e/0x310 [ 539.672911][ T2947] ksys_write+0x198/0x2c0 [ 539.677237][ T2947] ? __ia32_sys_read+0x90/0x90 [ 539.682085][ T2947] ? debug_smp_processor_id+0x17/0x20 [ 539.687717][ T2947] __x64_sys_write+0x7b/0x90 [ 539.692297][ T2947] do_syscall_64+0x34/0x70 [ 539.696725][ T2947] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 539.702730][ T2947] RIP: 0033:0x7f48883727a9 [ 539.707134][ T2947] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 539.726833][ T2947] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 539.735528][ T2947] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 539.743518][ T2947] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 539.751479][ T2947] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 539.759444][ T2947] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 539.767406][ T2947] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000040 [ 539.775696][ T2947] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 539.837073][ T2949] FAULT_INJECTION: forcing a failure. [ 539.837073][ T2949] name failslab, interval 1, probability 0, space 0, times 0 [ 539.849713][ T2949] CPU: 0 PID: 2949 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 539.860101][ T2949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 539.870550][ T2949] Call Trace: [ 539.873848][ T2949] dump_stack_lvl+0x1e2/0x24b [ 539.878515][ T2949] ? panic+0x7d7/0x7d7 [ 539.882573][ T2949] ? bfq_pos_tree_add_move+0x43e/0x43e [ 539.888029][ T2949] ? selinux_kernfs_init_security+0x1a8/0x760 [ 539.894187][ T2949] dump_stack+0x15/0x17 [ 539.898365][ T2949] should_fail+0x3c0/0x510 [ 539.902761][ T2949] __should_failslab+0x9f/0xe0 [ 539.907504][ T2949] should_failslab+0x9/0x20 [ 539.911998][ T2949] kmem_cache_alloc+0x3f/0x300 [ 539.916749][ T2949] ? __kernfs_new_node+0xdb/0x6e0 [ 539.921768][ T2949] __kernfs_new_node+0xdb/0x6e0 [ 539.926707][ T2949] ? is_module_text_address+0xe1/0x140 [ 539.932158][ T2949] ? kernfs_new_node+0x170/0x170 [ 539.937081][ T2949] ? ptr_to_hashval+0x60/0x60 [ 539.941738][ T2949] ? arch_stack_walk+0xf8/0x140 [ 539.946568][ T2949] ? snprintf+0xd6/0x120 [ 539.950808][ T2949] kernfs_new_node+0x97/0x170 [ 539.955472][ T2949] __kernfs_create_file+0x4a/0x270 [ 539.960660][ T2949] cgroup_addrm_files+0xab8/0xfe0 [ 539.965665][ T2949] ? ____kasan_kmalloc+0xdc/0x110 [ 539.970690][ T2949] ? __kasan_kmalloc+0x9/0x10 [ 539.975374][ T2949] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 539.980960][ T2949] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 539.987117][ T2949] ? delete_node+0x759/0x7b0 [ 539.991693][ T2949] ? __kasan_check_read+0x11/0x20 [ 539.996697][ T2949] ? delete_node+0x759/0x7b0 [ 540.001279][ T2949] ? __kasan_check_write+0x14/0x20 [ 540.006392][ T2949] ? idr_replace+0x1c4/0x230 [ 540.010960][ T2949] ? idr_get_next+0x4b0/0x4b0 [ 540.015626][ T2949] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 540.020628][ T2949] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 540.025800][ T2949] css_populate_dir+0x137/0x370 [ 540.030721][ T2949] cgroup_apply_control_enable+0x8b9/0x12f0 [ 540.036595][ T2949] cgroup_apply_control+0x8e/0x7e0 [ 540.041685][ T2949] ? css_next_child+0x160/0x160 [ 540.046531][ T2949] ? stack_trace_save+0x12d/0x1f0 [ 540.051542][ T2949] ? io_schedule+0x120/0x120 [ 540.056123][ T2949] ? kernfs_fop_write_iter+0x15e/0x410 [ 540.061656][ T2949] ? __kasan_check_write+0x14/0x20 [ 540.066780][ T2949] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 540.072055][ T2949] cgroup_subtree_control_write+0xd19/0x1310 [ 540.078031][ T2949] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 540.084115][ T2949] ? __kasan_check_write+0x14/0x20 [ 540.089205][ T2949] ? _copy_from_iter+0x3fb/0xd60 [ 540.094141][ T2949] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 540.100237][ T2949] cgroup_file_write+0x28e/0x590 [ 540.105260][ T2949] ? cgroup_seqfile_stop+0xc0/0xc0 [ 540.110519][ T2949] ? mutex_trylock+0x180/0x180 [ 540.115706][ T2949] ? __kasan_check_write+0x14/0x20 [ 540.120809][ T2949] kernfs_fop_write_iter+0x2d0/0x410 [ 540.126079][ T2949] ? cgroup_seqfile_stop+0xc0/0xc0 [ 540.131273][ T2949] vfs_write+0xc4a/0xf80 [ 540.135507][ T2949] ? slab_free_freelist_hook+0xcc/0x1a0 [ 540.141071][ T2949] ? kernel_write+0x420/0x420 [ 540.145748][ T2949] ? do_sys_openat2+0x397/0x470 [ 540.150595][ T2949] ? __kasan_check_read+0x11/0x20 [ 540.155609][ T2949] ? __fdget_pos+0x27e/0x310 [ 540.160190][ T2949] ksys_write+0x198/0x2c0 [ 540.164526][ T2949] ? __ia32_sys_read+0x90/0x90 [ 540.169350][ T2949] ? debug_smp_processor_id+0x17/0x20 [ 540.174724][ T2949] __x64_sys_write+0x7b/0x90 [ 540.179291][ T2949] do_syscall_64+0x34/0x70 [ 540.183698][ T2949] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 540.189574][ T2949] RIP: 0033:0x7f48883727a9 [ 540.193978][ T2949] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 540.213673][ T2949] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 540.222370][ T2949] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 540.230341][ T2949] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 540.238346][ T2949] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 540.246311][ T2949] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 540.254304][ T2949] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000035 [ 540.262666][ T2949] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 540.317272][ T2951] FAULT_INJECTION: forcing a failure. [ 540.317272][ T2951] name failslab, interval 1, probability 0, space 0, times 0 [ 540.329988][ T2951] CPU: 0 PID: 2951 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 540.340512][ T2951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 540.350545][ T2951] Call Trace: [ 540.353827][ T2951] dump_stack_lvl+0x1e2/0x24b [ 540.358519][ T2951] ? bfq_pos_tree_add_move+0x43e/0x43e [ 540.363964][ T2951] ? selinux_kernfs_init_security+0x1a8/0x760 [ 540.370010][ T2951] dump_stack+0x15/0x17 [ 540.374291][ T2951] should_fail+0x3c0/0x510 [ 540.378726][ T2951] ? __kernfs_new_node+0x99/0x6e0 [ 540.383758][ T2951] __should_failslab+0x9f/0xe0 [ 540.388942][ T2951] should_failslab+0x9/0x20 [ 540.395259][ T2951] __kmalloc_track_caller+0x5f/0x350 [ 540.400607][ T2951] kstrdup_const+0x55/0x90 [ 540.404999][ T2951] __kernfs_new_node+0x99/0x6e0 [ 540.409829][ T2951] ? is_module_text_address+0xe1/0x140 [ 540.415457][ T2951] ? kernfs_new_node+0x170/0x170 [ 540.420375][ T2951] ? ptr_to_hashval+0x60/0x60 [ 540.425037][ T2951] ? mutex_lock+0xb2/0x1e0 [ 540.429430][ T2951] ? snprintf+0xd6/0x120 [ 540.433666][ T2951] ? mutex_unlock+0x29/0xf0 [ 540.438253][ T2951] kernfs_new_node+0x97/0x170 [ 540.442946][ T2951] __kernfs_create_file+0x4a/0x270 [ 540.448062][ T2951] cgroup_addrm_files+0xab8/0xfe0 [ 540.453087][ T2951] ? ____kasan_kmalloc+0xdc/0x110 [ 540.458088][ T2951] ? __kasan_kmalloc+0x9/0x10 [ 540.462933][ T2951] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 540.468456][ T2951] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 540.474602][ T2951] ? delete_node+0x759/0x7b0 [ 540.479177][ T2951] ? __kasan_check_read+0x11/0x20 [ 540.484184][ T2951] ? idr_replace+0x1c4/0x230 [ 540.488760][ T2951] ? idr_get_next+0x4b0/0x4b0 [ 540.493423][ T2951] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 540.498434][ T2951] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 540.503869][ T2951] css_populate_dir+0x137/0x370 [ 540.508698][ T2951] cgroup_apply_control_enable+0x8b9/0x12f0 [ 540.514660][ T2951] cgroup_apply_control+0x8e/0x7e0 [ 540.519767][ T2951] ? css_next_child+0x160/0x160 [ 540.524686][ T2951] ? stack_trace_save+0x12d/0x1f0 [ 540.529886][ T2951] ? io_schedule+0x120/0x120 [ 540.534475][ T2951] ? kernfs_fop_write_iter+0x15e/0x410 [ 540.539966][ T2951] ? __kasan_check_write+0x14/0x20 [ 540.545105][ T2951] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 540.550381][ T2951] cgroup_subtree_control_write+0xd19/0x1310 [ 540.556351][ T2951] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 540.562405][ T2951] ? __kasan_check_write+0x14/0x20 [ 540.567582][ T2951] ? _copy_from_iter+0x3fb/0xd60 [ 540.572535][ T2951] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 540.578491][ T2951] cgroup_file_write+0x28e/0x590 [ 540.583498][ T2951] ? cgroup_seqfile_stop+0xc0/0xc0 [ 540.588691][ T2951] ? mutex_trylock+0x180/0x180 [ 540.593451][ T2951] ? __kasan_check_write+0x14/0x20 [ 540.598642][ T2951] kernfs_fop_write_iter+0x2d0/0x410 [ 540.603907][ T2951] ? cgroup_seqfile_stop+0xc0/0xc0 [ 540.608996][ T2951] vfs_write+0xc4a/0xf80 [ 540.613305][ T2951] ? slab_free_freelist_hook+0xcc/0x1a0 [ 540.618826][ T2951] ? kernel_write+0x420/0x420 [ 540.623497][ T2951] ? do_sys_openat2+0x397/0x470 [ 540.628327][ T2951] ? __kasan_check_read+0x11/0x20 [ 540.633443][ T2951] ? __fdget_pos+0x27e/0x310 [ 540.638011][ T2951] ksys_write+0x198/0x2c0 [ 540.642316][ T2951] ? __ia32_sys_read+0x90/0x90 [ 540.647058][ T2951] ? debug_smp_processor_id+0x17/0x20 [ 540.652423][ T2951] __x64_sys_write+0x7b/0x90 [ 540.656989][ T2951] do_syscall_64+0x34/0x70 [ 540.661383][ T2951] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 540.667512][ T2951] RIP: 0033:0x7f48883727a9 [ 540.671933][ T2951] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 540.691972][ T2951] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 540.700377][ T2951] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 540.708326][ T2951] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 540.716274][ T2951] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 540.724411][ T2951] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 540.732449][ T2951] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000033 [ 540.740775][ T2951] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 540.787285][ T2953] FAULT_INJECTION: forcing a failure. [ 540.787285][ T2953] name failslab, interval 1, probability 0, space 0, times 0 [ 540.800098][ T2953] CPU: 0 PID: 2953 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 540.810488][ T2953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 540.820684][ T2953] Call Trace: [ 540.823994][ T2953] dump_stack_lvl+0x1e2/0x24b [ 540.828663][ T2953] ? bfq_pos_tree_add_move+0x43e/0x43e [ 540.834111][ T2953] ? selinux_kernfs_init_security+0x1a8/0x760 [ 540.840220][ T2953] dump_stack+0x15/0x17 [ 540.844533][ T2953] should_fail+0x3c0/0x510 [ 540.849019][ T2953] ? __kernfs_new_node+0x99/0x6e0 [ 540.854037][ T2953] __should_failslab+0x9f/0xe0 [ 540.858795][ T2953] should_failslab+0x9/0x20 [ 540.863383][ T2953] __kmalloc_track_caller+0x5f/0x350 [ 540.868659][ T2953] kstrdup_const+0x55/0x90 [ 540.873055][ T2953] __kernfs_new_node+0x99/0x6e0 [ 540.877894][ T2953] ? is_module_text_address+0xe1/0x140 [ 540.883354][ T2953] ? kernfs_new_node+0x170/0x170 [ 540.888287][ T2953] ? ptr_to_hashval+0x60/0x60 [ 540.892955][ T2953] ? mutex_lock+0xb2/0x1e0 [ 540.897356][ T2953] ? snprintf+0xd6/0x120 [ 540.901573][ T2953] ? mutex_unlock+0x29/0xf0 [ 540.906046][ T2953] kernfs_new_node+0x97/0x170 [ 540.910698][ T2953] __kernfs_create_file+0x4a/0x270 [ 540.915792][ T2953] cgroup_addrm_files+0xab8/0xfe0 [ 540.920793][ T2953] ? ____kasan_kmalloc+0xdc/0x110 [ 540.925795][ T2953] ? __kasan_kmalloc+0x9/0x10 [ 540.930459][ T2953] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 540.935989][ T2953] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 540.942120][ T2953] ? delete_node+0x759/0x7b0 [ 540.946707][ T2953] ? __kasan_check_read+0x11/0x20 [ 540.951727][ T2953] ? idr_replace+0x1c4/0x230 [ 540.956331][ T2953] ? idr_get_next+0x4b0/0x4b0 [ 540.961010][ T2953] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 540.966019][ T2953] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 540.971273][ T2953] css_populate_dir+0x137/0x370 [ 540.976172][ T2953] cgroup_apply_control_enable+0x8b9/0x12f0 [ 540.982049][ T2953] cgroup_apply_control+0x8e/0x7e0 [ 540.987145][ T2953] ? css_next_child+0x160/0x160 [ 540.991975][ T2953] ? stack_trace_save+0x12d/0x1f0 [ 540.996979][ T2953] ? io_schedule+0x120/0x120 [ 541.001552][ T2953] ? kernfs_fop_write_iter+0x15e/0x410 [ 541.007010][ T2953] ? __kasan_check_write+0x14/0x20 [ 541.012113][ T2953] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 541.017385][ T2953] cgroup_subtree_control_write+0xd19/0x1310 [ 541.023356][ T2953] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 541.029506][ T2953] ? __kasan_check_write+0x14/0x20 [ 541.034729][ T2953] ? _copy_from_iter+0x3fb/0xd60 [ 541.039654][ T2953] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 541.045642][ T2953] cgroup_file_write+0x28e/0x590 [ 541.050565][ T2953] ? cgroup_seqfile_stop+0xc0/0xc0 [ 541.055654][ T2953] ? mutex_trylock+0x180/0x180 [ 541.060397][ T2953] ? __kasan_check_write+0x14/0x20 [ 541.065489][ T2953] kernfs_fop_write_iter+0x2d0/0x410 [ 541.070865][ T2953] ? cgroup_seqfile_stop+0xc0/0xc0 [ 541.075998][ T2953] vfs_write+0xc4a/0xf80 [ 541.080463][ T2953] ? slab_free_freelist_hook+0xcc/0x1a0 [ 541.086038][ T2953] ? kernel_write+0x420/0x420 [ 541.090705][ T2953] ? do_sys_openat2+0x397/0x470 [ 541.095567][ T2953] ? __kasan_check_read+0x11/0x20 [ 541.100598][ T2953] ? __fdget_pos+0x27e/0x310 [ 541.105175][ T2953] ksys_write+0x198/0x2c0 [ 541.109487][ T2953] ? __ia32_sys_read+0x90/0x90 [ 541.114235][ T2953] ? debug_smp_processor_id+0x17/0x20 [ 541.119690][ T2953] __x64_sys_write+0x7b/0x90 [ 541.124259][ T2953] do_syscall_64+0x34/0x70 [ 541.128659][ T2953] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 541.134627][ T2953] RIP: 0033:0x7f48883727a9 [ 541.139232][ T2953] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 541.158999][ T2953] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 541.167673][ T2953] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 541.175725][ T2953] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 541.183872][ T2953] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 541.192880][ T2953] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 541.200944][ T2953] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000036 [ 541.209067][ T2953] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 541.247234][ T2950] FAULT_INJECTION: forcing a failure. [ 541.247234][ T2950] name failslab, interval 1, probability 0, space 0, times 0 [ 541.260024][ T2950] CPU: 1 PID: 2950 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 541.270533][ T2950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 541.280877][ T2950] Call Trace: [ 541.284213][ T2950] dump_stack_lvl+0x1e2/0x24b [ 541.288930][ T2950] ? bfq_pos_tree_add_move+0x43e/0x43e [ 541.294387][ T2950] ? selinux_kernfs_init_security+0x1a8/0x760 [ 541.300446][ T2950] dump_stack+0x15/0x17 [ 541.304671][ T2950] should_fail+0x3c0/0x510 [ 541.309077][ T2950] ? __kernfs_new_node+0x99/0x6e0 [ 541.314099][ T2950] __should_failslab+0x9f/0xe0 [ 541.319119][ T2950] should_failslab+0x9/0x20 [ 541.323605][ T2950] __kmalloc_track_caller+0x5f/0x350 [ 541.329143][ T2950] kstrdup_const+0x55/0x90 [ 541.333550][ T2950] __kernfs_new_node+0x99/0x6e0 [ 541.338389][ T2950] ? is_module_text_address+0xe1/0x140 [ 541.343935][ T2950] ? kernfs_new_node+0x170/0x170 [ 541.348860][ T2950] ? ptr_to_hashval+0x60/0x60 [ 541.353609][ T2950] ? mutex_lock+0xb2/0x1e0 [ 541.358269][ T2950] ? snprintf+0xd6/0x120 [ 541.362590][ T2950] ? mutex_unlock+0x29/0xf0 [ 541.367164][ T2950] kernfs_new_node+0x97/0x170 [ 541.372190][ T2950] __kernfs_create_file+0x4a/0x270 [ 541.377347][ T2950] cgroup_addrm_files+0xab8/0xfe0 [ 541.382566][ T2950] ? ____kasan_kmalloc+0xdc/0x110 [ 541.387665][ T2950] ? __kasan_kmalloc+0x9/0x10 [ 541.392335][ T2950] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 541.397984][ T2950] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 541.404413][ T2950] ? delete_node+0x759/0x7b0 [ 541.409034][ T2950] ? __kasan_check_read+0x11/0x20 [ 541.414060][ T2950] ? idr_replace+0x1c4/0x230 [ 541.418649][ T2950] ? idr_get_next+0x4b0/0x4b0 [ 541.423341][ T2950] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 541.428352][ T2950] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 541.433724][ T2950] css_populate_dir+0x137/0x370 [ 541.438569][ T2950] cgroup_apply_control_enable+0x8b9/0x12f0 [ 541.444459][ T2950] cgroup_apply_control+0x8e/0x7e0 [ 541.449560][ T2950] ? css_next_child+0x160/0x160 [ 541.454518][ T2950] ? stack_trace_save+0x12d/0x1f0 [ 541.459624][ T2950] ? io_schedule+0x120/0x120 [ 541.464473][ T2950] ? kernfs_fop_write_iter+0x15e/0x410 [ 541.469919][ T2950] ? __kasan_check_write+0x14/0x20 [ 541.475033][ T2950] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 541.480323][ T2950] cgroup_subtree_control_write+0xd19/0x1310 [ 541.486311][ T2950] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 541.492282][ T2950] ? __kasan_check_write+0x14/0x20 [ 541.497548][ T2950] ? _copy_from_iter+0x3fb/0xd60 [ 541.502886][ T2950] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 541.509025][ T2950] cgroup_file_write+0x28e/0x590 [ 541.514003][ T2950] ? cgroup_seqfile_stop+0xc0/0xc0 [ 541.519192][ T2950] ? mutex_trylock+0x180/0x180 [ 541.524025][ T2950] ? __kasan_check_write+0x14/0x20 [ 541.529368][ T2950] kernfs_fop_write_iter+0x2d0/0x410 [ 541.534653][ T2950] ? cgroup_seqfile_stop+0xc0/0xc0 [ 541.539771][ T2950] vfs_write+0xc4a/0xf80 [ 541.544013][ T2950] ? slab_free_freelist_hook+0xcc/0x1a0 [ 541.549551][ T2950] ? kernel_write+0x420/0x420 [ 541.554410][ T2950] ? do_sys_openat2+0x397/0x470 [ 541.559258][ T2950] ? __kasan_check_read+0x11/0x20 [ 541.564267][ T2950] ? __fdget_pos+0x27e/0x310 [ 541.568847][ T2950] ksys_write+0x198/0x2c0 [ 541.573195][ T2950] ? __ia32_sys_read+0x90/0x90 [ 541.577951][ T2950] ? debug_smp_processor_id+0x17/0x20 [ 541.583307][ T2950] __x64_sys_write+0x7b/0x90 [ 541.587896][ T2950] do_syscall_64+0x34/0x70 [ 541.592390][ T2950] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 541.598616][ T2950] RIP: 0033:0x7f48883727a9 [ 541.603285][ T2950] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 541.622987][ T2950] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 541.631401][ T2950] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 541.639623][ T2950] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 541.647682][ T2950] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 541.655729][ T2950] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 541.664039][ T2950] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002f [ 541.672357][ T2950] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 541.717065][ T2948] FAULT_INJECTION: forcing a failure. [ 541.717065][ T2948] name failslab, interval 1, probability 0, space 0, times 0 [ 541.729990][ T2948] CPU: 0 PID: 2948 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 541.740387][ T2948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 541.750438][ T2948] Call Trace: [ 541.753728][ T2948] dump_stack_lvl+0x1e2/0x24b [ 541.758396][ T2948] ? bfq_pos_tree_add_move+0x43e/0x43e [ 541.763831][ T2948] ? selinux_kernfs_init_security+0x1a8/0x760 [ 541.769877][ T2948] dump_stack+0x15/0x17 [ 541.774006][ T2948] should_fail+0x3c0/0x510 [ 541.778454][ T2948] ? __kernfs_new_node+0x99/0x6e0 [ 541.783494][ T2948] __should_failslab+0x9f/0xe0 [ 541.788279][ T2948] should_failslab+0x9/0x20 [ 541.792786][ T2948] __kmalloc_track_caller+0x5f/0x350 [ 541.798064][ T2948] kstrdup_const+0x55/0x90 [ 541.802471][ T2948] __kernfs_new_node+0x99/0x6e0 [ 541.807383][ T2948] ? is_module_text_address+0xe1/0x140 [ 541.812812][ T2948] ? kernfs_new_node+0x170/0x170 [ 541.817721][ T2948] ? ptr_to_hashval+0x60/0x60 [ 541.822456][ T2948] ? mutex_lock+0xb2/0x1e0 [ 541.826844][ T2948] ? snprintf+0xd6/0x120 [ 541.831061][ T2948] ? mutex_unlock+0x29/0xf0 [ 541.835533][ T2948] kernfs_new_node+0x97/0x170 [ 541.840370][ T2948] __kernfs_create_file+0x4a/0x270 [ 541.845611][ T2948] cgroup_addrm_files+0xab8/0xfe0 [ 541.850714][ T2948] ? ____kasan_kmalloc+0xdc/0x110 [ 541.855718][ T2948] ? __kasan_kmalloc+0x9/0x10 [ 541.860386][ T2948] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 541.865961][ T2948] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 541.872106][ T2948] ? delete_node+0x759/0x7b0 [ 541.876674][ T2948] ? __kasan_check_read+0x11/0x20 [ 541.881673][ T2948] ? idr_replace+0x1c4/0x230 [ 541.886233][ T2948] ? idr_get_next+0x4b0/0x4b0 [ 541.890895][ T2948] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 541.895983][ T2948] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 541.901160][ T2948] css_populate_dir+0x137/0x370 [ 541.905988][ T2948] cgroup_apply_control_enable+0x8b9/0x12f0 [ 541.911856][ T2948] cgroup_apply_control+0x8e/0x7e0 [ 541.916938][ T2948] ? css_next_child+0x160/0x160 [ 541.921774][ T2948] ? stack_trace_save+0x12d/0x1f0 [ 541.926779][ T2948] ? io_schedule+0x120/0x120 [ 541.931449][ T2948] ? kernfs_fop_write_iter+0x15e/0x410 [ 541.937079][ T2948] ? __kasan_check_write+0x14/0x20 [ 541.942272][ T2948] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 541.947631][ T2948] cgroup_subtree_control_write+0xd19/0x1310 [ 541.953797][ T2948] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 541.959799][ T2948] ? __kasan_check_write+0x14/0x20 [ 541.964905][ T2948] ? _copy_from_iter+0x3fb/0xd60 [ 541.969823][ T2948] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 541.975786][ T2948] cgroup_file_write+0x28e/0x590 [ 541.980695][ T2948] ? cgroup_seqfile_stop+0xc0/0xc0 [ 541.985786][ T2948] ? mutex_trylock+0x180/0x180 [ 541.990529][ T2948] ? __kasan_check_write+0x14/0x20 [ 541.995627][ T2948] kernfs_fop_write_iter+0x2d0/0x410 [ 542.000885][ T2948] ? cgroup_seqfile_stop+0xc0/0xc0 [ 542.005966][ T2948] vfs_write+0xc4a/0xf80 [ 542.010266][ T2948] ? slab_free_freelist_hook+0xcc/0x1a0 [ 542.015784][ T2948] ? kernel_write+0x420/0x420 [ 542.020431][ T2948] ? do_sys_openat2+0x397/0x470 [ 542.025256][ T2948] ? __kasan_check_read+0x11/0x20 [ 542.030262][ T2948] ? __fdget_pos+0x27e/0x310 [ 542.034859][ T2948] ksys_write+0x198/0x2c0 [ 542.039206][ T2948] ? __ia32_sys_read+0x90/0x90 [ 542.044045][ T2948] ? debug_smp_processor_id+0x17/0x20 [ 542.049398][ T2948] __x64_sys_write+0x7b/0x90 [ 542.054310][ T2948] do_syscall_64+0x34/0x70 [ 542.058716][ T2948] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 542.064876][ T2948] RIP: 0033:0x7f48883727a9 [ 542.069297][ T2948] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 542.088895][ T2948] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 542.097317][ T2948] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 542.105303][ T2948] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 542.113349][ T2948] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 542.121442][ T2948] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 542.129413][ T2948] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000030 [ 542.137622][ T2948] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 542.177225][ T2952] FAULT_INJECTION: forcing a failure. [ 542.177225][ T2952] name failslab, interval 1, probability 0, space 0, times 0 [ 542.190095][ T2952] CPU: 1 PID: 2952 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 542.200666][ T2952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 542.211178][ T2952] Call Trace: [ 542.214480][ T2952] dump_stack_lvl+0x1e2/0x24b [ 542.219186][ T2952] ? bfq_pos_tree_add_move+0x43e/0x43e [ 542.224634][ T2952] ? selinux_kernfs_init_security+0x1a8/0x760 [ 542.230692][ T2952] dump_stack+0x15/0x17 [ 542.234849][ T2952] should_fail+0x3c0/0x510 [ 542.239413][ T2952] ? __kernfs_new_node+0x99/0x6e0 [ 542.245041][ T2952] __should_failslab+0x9f/0xe0 [ 542.250007][ T2952] should_failslab+0x9/0x20 [ 542.254496][ T2952] __kmalloc_track_caller+0x5f/0x350 [ 542.260741][ T2952] kstrdup_const+0x55/0x90 [ 542.265180][ T2952] __kernfs_new_node+0x99/0x6e0 [ 542.270027][ T2952] ? is_module_text_address+0xe1/0x140 [ 542.275599][ T2952] ? kernfs_new_node+0x170/0x170 [ 542.280528][ T2952] ? ptr_to_hashval+0x60/0x60 [ 542.285193][ T2952] ? mutex_lock+0xb2/0x1e0 [ 542.289781][ T2952] ? snprintf+0xd6/0x120 [ 542.294016][ T2952] ? mutex_unlock+0x29/0xf0 [ 542.298631][ T2952] kernfs_new_node+0x97/0x170 [ 542.303306][ T2952] __kernfs_create_file+0x4a/0x270 [ 542.308534][ T2952] cgroup_addrm_files+0xab8/0xfe0 [ 542.313646][ T2952] ? ____kasan_kmalloc+0xdc/0x110 [ 542.318673][ T2952] ? __kasan_kmalloc+0x9/0x10 [ 542.323360][ T2952] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 542.328902][ T2952] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 542.335041][ T2952] ? delete_node+0x759/0x7b0 [ 542.339734][ T2952] ? __kasan_check_read+0x11/0x20 [ 542.344770][ T2952] ? idr_replace+0x1c4/0x230 [ 542.349355][ T2952] ? idr_get_next+0x4b0/0x4b0 [ 542.354041][ T2952] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 542.359300][ T2952] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 542.365107][ T2952] css_populate_dir+0x137/0x370 [ 542.370064][ T2952] cgroup_apply_control_enable+0x8b9/0x12f0 [ 542.375962][ T2952] cgroup_apply_control+0x8e/0x7e0 [ 542.381064][ T2952] ? css_next_child+0x160/0x160 [ 542.385897][ T2952] ? stack_trace_save+0x12d/0x1f0 [ 542.390898][ T2952] ? io_schedule+0x120/0x120 [ 542.395463][ T2952] ? kernfs_fop_write_iter+0x15e/0x410 [ 542.400902][ T2952] ? __kasan_check_write+0x14/0x20 [ 542.406072][ T2952] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 542.411344][ T2952] cgroup_subtree_control_write+0xd19/0x1310 [ 542.417413][ T2952] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 542.423733][ T2952] ? __kasan_check_write+0x14/0x20 [ 542.428950][ T2952] ? _copy_from_iter+0x3fb/0xd60 [ 542.433880][ T2952] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 542.439852][ T2952] cgroup_file_write+0x28e/0x590 [ 542.444883][ T2952] ? cgroup_seqfile_stop+0xc0/0xc0 [ 542.450144][ T2952] ? mutex_trylock+0x180/0x180 [ 542.454885][ T2952] ? __kasan_check_write+0x14/0x20 [ 542.460409][ T2952] kernfs_fop_write_iter+0x2d0/0x410 [ 542.465870][ T2952] ? cgroup_seqfile_stop+0xc0/0xc0 [ 542.471135][ T2952] vfs_write+0xc4a/0xf80 [ 542.475359][ T2952] ? slab_free_freelist_hook+0xcc/0x1a0 [ 542.480911][ T2952] ? kernel_write+0x420/0x420 [ 542.485589][ T2952] ? do_sys_openat2+0x397/0x470 [ 542.490580][ T2952] ? __kasan_check_read+0x11/0x20 [ 542.495610][ T2952] ? __fdget_pos+0x27e/0x310 [ 542.500614][ T2952] ksys_write+0x198/0x2c0 [ 542.505084][ T2952] ? __ia32_sys_read+0x90/0x90 [ 542.509937][ T2952] ? debug_smp_processor_id+0x17/0x20 [ 542.515411][ T2952] __x64_sys_write+0x7b/0x90 [ 542.520006][ T2952] do_syscall_64+0x34/0x70 [ 542.524419][ T2952] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 542.530299][ T2952] RIP: 0033:0x7f48883727a9 [ 542.534699][ T2952] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 542.554377][ T2952] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 542.562773][ T2952] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 542.570727][ T2952] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 542.578765][ T2952] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 542.586863][ T2952] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 542.594849][ T2952] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000041 [ 542.603430][ T2952] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 542.647129][ T2954] FAULT_INJECTION: forcing a failure. [ 542.647129][ T2954] name failslab, interval 1, probability 0, space 0, times 0 [ 542.659805][ T2954] CPU: 0 PID: 2954 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 542.670475][ T2954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 542.680524][ T2954] Call Trace: [ 542.683805][ T2954] dump_stack_lvl+0x1e2/0x24b [ 542.688563][ T2954] ? bfq_pos_tree_add_move+0x43e/0x43e [ 542.694017][ T2954] dump_stack+0x15/0x17 [ 542.698173][ T2954] should_fail+0x3c0/0x510 [ 542.702585][ T2954] __should_failslab+0x9f/0xe0 [ 542.707422][ T2954] should_failslab+0x9/0x20 [ 542.711914][ T2954] kmem_cache_alloc+0x3f/0x300 [ 542.716654][ T2954] ? radix_tree_node_alloc+0x194/0x3c0 [ 542.722090][ T2954] radix_tree_node_alloc+0x194/0x3c0 [ 542.727355][ T2954] ? kernfs_new_node+0x97/0x170 [ 542.732179][ T2954] ? __kernfs_create_file+0x4a/0x270 [ 542.737439][ T2954] ? cgroup_addrm_files+0xab8/0xfe0 [ 542.742615][ T2954] ? cgroup_apply_control_enable+0x8b9/0x12f0 [ 542.748657][ T2954] idr_get_free+0x2d8/0x990 [ 542.753225][ T2954] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 542.759529][ T2954] idr_alloc_cyclic+0x1ef/0x5d0 [ 542.764374][ T2954] ? idr_alloc+0x2f0/0x2f0 [ 542.768791][ T2954] ? __kasan_check_write+0x14/0x20 [ 542.773889][ T2954] ? _raw_spin_lock+0xa3/0x1b0 [ 542.778724][ T2954] ? __radix_tree_preload+0x361/0x3e0 [ 542.784084][ T2954] ? kmem_cache_alloc+0x1a4/0x300 [ 542.789173][ T2954] __kernfs_new_node+0x124/0x6e0 [ 542.794108][ T2954] ? is_module_text_address+0xe1/0x140 [ 542.799800][ T2954] ? kernfs_new_node+0x170/0x170 [ 542.804715][ T2954] ? ptr_to_hashval+0x60/0x60 [ 542.809372][ T2954] ? arch_stack_walk+0xf8/0x140 [ 542.814211][ T2954] ? snprintf+0xd6/0x120 [ 542.818428][ T2954] kernfs_new_node+0x97/0x170 [ 542.823092][ T2954] __kernfs_create_file+0x4a/0x270 [ 542.828190][ T2954] cgroup_addrm_files+0xab8/0xfe0 [ 542.833199][ T2954] ? ____kasan_kmalloc+0xdc/0x110 [ 542.838316][ T2954] ? __kasan_kmalloc+0x9/0x10 [ 542.843414][ T2954] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 542.848944][ T2954] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 542.855525][ T2954] ? delete_node+0x759/0x7b0 [ 542.860092][ T2954] ? __kasan_check_read+0x11/0x20 [ 542.865281][ T2954] ? delete_node+0x759/0x7b0 [ 542.869961][ T2954] ? __kasan_check_write+0x14/0x20 [ 542.875082][ T2954] ? idr_replace+0x1c4/0x230 [ 542.879671][ T2954] ? idr_get_next+0x4b0/0x4b0 [ 542.884336][ T2954] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 542.889339][ T2954] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 542.894516][ T2954] css_populate_dir+0x137/0x370 [ 542.899396][ T2954] cgroup_apply_control_enable+0x8b9/0x12f0 [ 542.905265][ T2954] cgroup_apply_control+0x8e/0x7e0 [ 542.910363][ T2954] ? css_next_child+0x160/0x160 [ 542.915188][ T2954] ? stack_trace_save+0x12d/0x1f0 [ 542.920390][ T2954] ? io_schedule+0x120/0x120 [ 542.924977][ T2954] ? kernfs_fop_write_iter+0x15e/0x410 [ 542.930600][ T2954] ? __kasan_check_write+0x14/0x20 [ 542.935706][ T2954] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 542.940979][ T2954] cgroup_subtree_control_write+0xd19/0x1310 [ 542.946938][ T2954] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 542.952922][ T2954] ? __kasan_check_write+0x14/0x20 [ 542.958057][ T2954] ? _copy_from_iter+0x3fb/0xd60 [ 542.963004][ T2954] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 542.969164][ T2954] cgroup_file_write+0x28e/0x590 [ 542.974080][ T2954] ? cgroup_seqfile_stop+0xc0/0xc0 [ 542.979365][ T2954] ? mutex_trylock+0x180/0x180 [ 542.984107][ T2954] ? __kasan_check_write+0x14/0x20 [ 542.989282][ T2954] kernfs_fop_write_iter+0x2d0/0x410 [ 542.994544][ T2954] ? cgroup_seqfile_stop+0xc0/0xc0 [ 542.999766][ T2954] vfs_write+0xc4a/0xf80 [ 543.003990][ T2954] ? slab_free_freelist_hook+0xcc/0x1a0 [ 543.009596][ T2954] ? kernel_write+0x420/0x420 [ 543.014259][ T2954] ? do_sys_openat2+0x397/0x470 [ 543.019094][ T2954] ? __kasan_check_read+0x11/0x20 [ 543.024130][ T2954] ? __fdget_pos+0x27e/0x310 [ 543.028821][ T2954] ksys_write+0x198/0x2c0 [ 543.033161][ T2954] ? __ia32_sys_read+0x90/0x90 [ 543.038111][ T2954] ? debug_smp_processor_id+0x17/0x20 [ 543.043479][ T2954] __x64_sys_write+0x7b/0x90 [ 543.048085][ T2954] do_syscall_64+0x34/0x70 [ 543.052497][ T2954] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 543.058371][ T2954] RIP: 0033:0x7f48883727a9 [ 543.062774][ T2954] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 543.082719][ T2954] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 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 [ 543.091126][ T2954] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 543.099418][ T2954] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 543.107459][ T2954] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 543.115415][ T2954] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 543.123364][ T2954] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000034 [ 543.147125][ T2945] FAULT_INJECTION: forcing a failure. [ 543.147125][ T2945] name failslab, interval 1, probability 0, space 0, times 0 [ 543.160047][ T2945] CPU: 1 PID: 2945 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 543.170448][ T2945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 543.180485][ T2945] Call Trace: [ 543.183764][ T2945] dump_stack_lvl+0x1e2/0x24b [ 543.188420][ T2945] ? bfq_pos_tree_add_move+0x43e/0x43e [ 543.193998][ T2945] ? selinux_kernfs_init_security+0x1a8/0x760 [ 543.200086][ T2945] dump_stack+0x15/0x17 [ 543.204222][ T2945] should_fail+0x3c0/0x510 [ 543.208628][ T2945] ? __kernfs_new_node+0x99/0x6e0 [ 543.213739][ T2945] __should_failslab+0x9f/0xe0 [ 543.218576][ T2945] should_failslab+0x9/0x20 [ 543.223068][ T2945] __kmalloc_track_caller+0x5f/0x350 [ 543.228446][ T2945] kstrdup_const+0x55/0x90 [ 543.232849][ T2945] __kernfs_new_node+0x99/0x6e0 [ 543.237706][ T2945] ? is_module_text_address+0xe1/0x140 [ 543.243235][ T2945] ? kernfs_new_node+0x170/0x170 [ 543.248243][ T2945] ? ptr_to_hashval+0x60/0x60 [ 543.252989][ T2945] ? mutex_lock+0xb2/0x1e0 [ 543.257619][ T2945] ? snprintf+0xd6/0x120 [ 543.262027][ T2945] ? mutex_unlock+0x29/0xf0 [ 543.266528][ T2945] kernfs_new_node+0x97/0x170 [ 543.271287][ T2945] __kernfs_create_file+0x4a/0x270 [ 543.276379][ T2945] cgroup_addrm_files+0xab8/0xfe0 [ 543.281397][ T2945] ? ____kasan_kmalloc+0xdc/0x110 [ 543.286471][ T2945] ? __kasan_kmalloc+0x9/0x10 [ 543.291145][ T2945] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 543.296675][ T2945] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 543.302907][ T2945] ? delete_node+0x759/0x7b0 [ 543.307504][ T2945] ? __kasan_check_read+0x11/0x20 [ 543.312678][ T2945] ? idr_replace+0x1c4/0x230 [ 543.317450][ T2945] ? idr_get_next+0x4b0/0x4b0 [ 543.322163][ T2945] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 543.327273][ T2945] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 543.332466][ T2945] css_populate_dir+0x137/0x370 [ 543.337475][ T2945] cgroup_apply_control_enable+0x8b9/0x12f0 [ 543.343471][ T2945] cgroup_apply_control+0x8e/0x7e0 [ 543.348844][ T2945] ? css_next_child+0x160/0x160 [ 543.353706][ T2945] ? stack_trace_save+0x12d/0x1f0 [ 543.358720][ T2945] ? io_schedule+0x120/0x120 [ 543.363383][ T2945] ? kernfs_fop_write_iter+0x15e/0x410 [ 543.369033][ T2945] ? __kasan_check_write+0x14/0x20 [ 543.374160][ T2945] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 543.379525][ T2945] cgroup_subtree_control_write+0xd19/0x1310 [ 543.385510][ T2945] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 543.391484][ T2945] ? __kasan_check_write+0x14/0x20 [ 543.396606][ T2945] ? _copy_from_iter+0x3fb/0xd60 [ 543.401626][ T2945] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 543.407614][ T2945] cgroup_file_write+0x28e/0x590 [ 543.412539][ T2945] ? cgroup_seqfile_stop+0xc0/0xc0 [ 543.417637][ T2945] ? mutex_trylock+0x180/0x180 [ 543.422387][ T2945] ? __kasan_check_write+0x14/0x20 [ 543.427527][ T2945] kernfs_fop_write_iter+0x2d0/0x410 [ 543.432795][ T2945] ? cgroup_seqfile_stop+0xc0/0xc0 [ 543.437982][ T2945] vfs_write+0xc4a/0xf80 [ 543.442226][ T2945] ? slab_free_freelist_hook+0xcc/0x1a0 [ 543.447773][ T2945] ? kernel_write+0x420/0x420 [ 543.452433][ T2945] ? do_sys_openat2+0x397/0x470 [ 543.457535][ T2945] ? __kasan_check_read+0x11/0x20 [ 543.462952][ T2945] ? __fdget_pos+0x27e/0x310 [ 543.467550][ T2945] ksys_write+0x198/0x2c0 [ 543.471917][ T2945] ? __ia32_sys_read+0x90/0x90 [ 543.476793][ T2945] ? debug_smp_processor_id+0x17/0x20 [ 543.482434][ T2945] __x64_sys_write+0x7b/0x90 [ 543.487020][ T2945] do_syscall_64+0x34/0x70 [ 543.491661][ T2945] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 543.497547][ T2945] RIP: 0033:0x7f48883727a9 [ 543.502037][ T2945] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 543.522160][ T2945] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 543.530558][ T2945] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 543.538601][ T2945] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 543.546902][ T2945] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 543.554880][ T2945] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 543.563238][ T2945] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000002f [ 543.571335][ T2945] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 543.617408][ T2959] FAULT_INJECTION: forcing a failure. [ 543.617408][ T2959] name failslab, interval 1, probability 0, space 0, times 0 [ 543.630263][ T2959] CPU: 1 PID: 2959 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 543.640834][ T2959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 543.650913][ T2959] Call Trace: [ 543.654224][ T2959] dump_stack_lvl+0x1e2/0x24b [ 543.658908][ T2959] ? panic+0x7d7/0x7d7 [ 543.663137][ T2959] ? bfq_pos_tree_add_move+0x43e/0x43e [ 543.668606][ T2959] ? selinux_kernfs_init_security+0x1a8/0x760 [ 543.675165][ T2959] dump_stack+0x15/0x17 [ 543.679314][ T2959] should_fail+0x3c0/0x510 [ 543.683716][ T2959] __should_failslab+0x9f/0xe0 [ 543.688469][ T2959] should_failslab+0x9/0x20 [ 543.692970][ T2959] kmem_cache_alloc+0x3f/0x300 [ 543.697843][ T2959] ? __kernfs_new_node+0xdb/0x6e0 [ 543.703371][ T2959] __kernfs_new_node+0xdb/0x6e0 [ 543.708203][ T2959] ? is_module_text_address+0xe1/0x140 [ 543.713740][ T2959] ? kernfs_new_node+0x170/0x170 [ 543.718656][ T2959] ? ptr_to_hashval+0x60/0x60 [ 543.723308][ T2959] ? arch_stack_walk+0xf8/0x140 [ 543.728146][ T2959] ? snprintf+0xd6/0x120 [ 543.732476][ T2959] kernfs_new_node+0x97/0x170 [ 543.737167][ T2959] __kernfs_create_file+0x4a/0x270 [ 543.742253][ T2959] cgroup_addrm_files+0xab8/0xfe0 [ 543.747464][ T2959] ? ____kasan_kmalloc+0xdc/0x110 [ 543.752633][ T2959] ? __kasan_kmalloc+0x9/0x10 [ 543.757884][ T2959] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 543.763436][ T2959] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 543.769906][ T2959] ? delete_node+0x759/0x7b0 [ 543.774494][ T2959] ? __kasan_check_read+0x11/0x20 [ 543.779699][ T2959] ? delete_node+0x759/0x7b0 [ 543.784275][ T2959] ? __kasan_check_write+0x14/0x20 [ 543.789636][ T2959] ? idr_replace+0x1c4/0x230 [ 543.794219][ T2959] ? idr_get_next+0x4b0/0x4b0 [ 543.798967][ T2959] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 543.803991][ T2959] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 543.809173][ T2959] css_populate_dir+0x137/0x370 [ 543.814024][ T2959] cgroup_apply_control_enable+0x8b9/0x12f0 [ 543.819986][ T2959] cgroup_apply_control+0x8e/0x7e0 [ 543.825095][ T2959] ? css_next_child+0x160/0x160 [ 543.829943][ T2959] ? stack_trace_save+0x12d/0x1f0 [ 543.835109][ T2959] ? io_schedule+0x120/0x120 [ 543.839696][ T2959] ? kernfs_fop_write_iter+0x15e/0x410 [ 543.845149][ T2959] ? __kasan_check_write+0x14/0x20 [ 543.850247][ T2959] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 543.856668][ T2959] cgroup_subtree_control_write+0xd19/0x1310 [ 543.862644][ T2959] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 543.868795][ T2959] ? __kasan_check_write+0x14/0x20 [ 543.874085][ T2959] ? _copy_from_iter+0x3fb/0xd60 [ 543.879015][ T2959] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 543.885066][ T2959] cgroup_file_write+0x28e/0x590 [ 543.889981][ T2959] ? cgroup_seqfile_stop+0xc0/0xc0 [ 543.895099][ T2959] ? mutex_trylock+0x180/0x180 [ 543.899925][ T2959] ? __kasan_check_write+0x14/0x20 [ 543.905032][ T2959] kernfs_fop_write_iter+0x2d0/0x410 [ 543.910329][ T2959] ? cgroup_seqfile_stop+0xc0/0xc0 [ 543.915423][ T2959] vfs_write+0xc4a/0xf80 [ 543.919654][ T2959] ? slab_free_freelist_hook+0xcc/0x1a0 [ 543.925263][ T2959] ? kernel_write+0x420/0x420 [ 543.930000][ T2959] ? do_sys_openat2+0x397/0x470 [ 543.934831][ T2959] ? __kasan_check_read+0x11/0x20 [ 543.939829][ T2959] ? __fdget_pos+0x27e/0x310 [ 543.944417][ T2959] ksys_write+0x198/0x2c0 [ 543.948736][ T2959] ? __ia32_sys_read+0x90/0x90 [ 543.953483][ T2959] ? debug_smp_processor_id+0x17/0x20 [ 543.958963][ T2959] __x64_sys_write+0x7b/0x90 [ 543.963530][ T2959] do_syscall_64+0x34/0x70 [ 543.967944][ T2959] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 543.973982][ T2959] RIP: 0033:0x7f48883727a9 [ 543.978474][ T2959] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 543.998060][ T2959] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 544.006721][ T2959] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 544.014723][ T2959] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 544.022799][ T2959] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 544.030781][ T2959] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 544.038841][ T2959] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000043 [ 544.047119][ T2959] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 544.077279][ T2955] FAULT_INJECTION: forcing a failure. [ 544.077279][ T2955] name failslab, interval 1, probability 0, space 0, times 0 [ 544.090023][ T2955] CPU: 1 PID: 2955 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 544.100414][ T2955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 544.110461][ T2955] Call Trace: [ 544.113748][ T2955] dump_stack_lvl+0x1e2/0x24b [ 544.118403][ T2955] ? panic+0x7d7/0x7d7 [ 544.122455][ T2955] ? arch_stack_walk+0x106/0x140 [ 544.127375][ T2955] ? bfq_pos_tree_add_move+0x43e/0x43e [ 544.132904][ T2955] ? do_syscall_64+0x34/0x70 [ 544.137498][ T2955] dump_stack+0x15/0x17 [ 544.141633][ T2955] should_fail+0x3c0/0x510 [ 544.146024][ T2955] __should_failslab+0x9f/0xe0 [ 544.150869][ T2955] should_failslab+0x9/0x20 [ 544.155361][ T2955] kmem_cache_alloc+0x3f/0x300 [ 544.160459][ T2955] ? __kernfs_new_node+0xdb/0x6e0 [ 544.165465][ T2955] __kernfs_new_node+0xdb/0x6e0 [ 544.170319][ T2955] ? is_module_text_address+0xe1/0x140 [ 544.175770][ T2955] ? kernfs_new_node+0x170/0x170 [ 544.180824][ T2955] ? ptr_to_hashval+0x60/0x60 [ 544.185495][ T2955] ? arch_stack_walk+0xf8/0x140 [ 544.190577][ T2955] ? snprintf+0xd6/0x120 [ 544.195165][ T2955] kernfs_new_node+0x97/0x170 [ 544.199837][ T2955] __kernfs_create_file+0x4a/0x270 [ 544.204958][ T2955] cgroup_addrm_files+0xab8/0xfe0 [ 544.209976][ T2955] ? ____kasan_kmalloc+0xdc/0x110 [ 544.214990][ T2955] ? __kasan_kmalloc+0x9/0x10 [ 544.219676][ T2955] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 544.225215][ T2955] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 544.231775][ T2955] ? delete_node+0x759/0x7b0 [ 544.236531][ T2955] ? __kasan_check_read+0x11/0x20 [ 544.241562][ T2955] ? delete_node+0x759/0x7b0 [ 544.246139][ T2955] ? __kasan_check_write+0x14/0x20 [ 544.251374][ T2955] ? idr_replace+0x1c4/0x230 [ 544.255966][ T2955] ? idr_get_next+0x4b0/0x4b0 [ 544.260626][ T2955] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 544.265638][ T2955] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 544.270920][ T2955] css_populate_dir+0x137/0x370 [ 544.276013][ T2955] cgroup_apply_control_enable+0x8b9/0x12f0 [ 544.281897][ T2955] cgroup_apply_control+0x8e/0x7e0 [ 544.286999][ T2955] ? css_next_child+0x160/0x160 [ 544.291834][ T2955] ? io_schedule+0x120/0x120 [ 544.296417][ T2955] ? kernfs_fop_write_iter+0x15e/0x410 [ 544.301864][ T2955] ? __kasan_check_write+0x14/0x20 [ 544.307255][ T2955] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 544.312525][ T2955] cgroup_subtree_control_write+0xd19/0x1310 [ 544.318583][ T2955] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 544.324565][ T2955] ? __kasan_check_write+0x14/0x20 [ 544.329667][ T2955] ? _copy_from_iter+0x3fb/0xd60 [ 544.334614][ T2955] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 544.340663][ T2955] cgroup_file_write+0x28e/0x590 [ 544.345697][ T2955] ? cgroup_seqfile_stop+0xc0/0xc0 [ 544.350929][ T2955] ? mutex_trylock+0x180/0x180 [ 544.355712][ T2955] ? __kasan_check_write+0x14/0x20 [ 544.360810][ T2955] kernfs_fop_write_iter+0x2d0/0x410 [ 544.366093][ T2955] ? cgroup_seqfile_stop+0xc0/0xc0 [ 544.371190][ T2955] vfs_write+0xc4a/0xf80 [ 544.375560][ T2955] ? kernel_write+0x420/0x420 [ 544.380229][ T2955] ? do_sys_openat2+0x397/0x470 [ 544.385192][ T2955] ? __kasan_check_read+0x11/0x20 [ 544.390195][ T2955] ? __fdget_pos+0x27e/0x310 [ 544.394781][ T2955] ksys_write+0x198/0x2c0 [ 544.399281][ T2955] ? __kasan_check_write+0x14/0x20 [ 544.404380][ T2955] ? __ia32_sys_read+0x90/0x90 [ 544.409224][ T2955] ? debug_smp_processor_id+0x17/0x20 [ 544.414686][ T2955] __x64_sys_write+0x7b/0x90 [ 544.419264][ T2955] do_syscall_64+0x34/0x70 [ 544.423760][ T2955] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 544.429689][ T2955] RIP: 0033:0x7f48883727a9 [ 544.434084][ T2955] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 544.453887][ T2955] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 544.462287][ T2955] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 544.470351][ T2955] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 544.478612][ T2955] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 544.486987][ T2955] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 544.495038][ T2955] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000037 [ 544.503212][ T2955] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 544.537117][ T2956] FAULT_INJECTION: forcing a failure. [ 544.537117][ T2956] name failslab, interval 1, probability 0, space 0, times 0 [ 544.549749][ T2956] CPU: 0 PID: 2956 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 544.560137][ T2956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 544.570179][ T2956] Call Trace: [ 544.573466][ T2956] dump_stack_lvl+0x1e2/0x24b [ 544.578129][ T2956] ? panic+0x7d7/0x7d7 [ 544.582212][ T2956] ? bfq_pos_tree_add_move+0x43e/0x43e [ 544.587841][ T2956] ? selinux_kernfs_init_security+0x1a8/0x760 [ 544.594094][ T2956] dump_stack+0x15/0x17 [ 544.598359][ T2956] should_fail+0x3c0/0x510 [ 544.602969][ T2956] __should_failslab+0x9f/0xe0 [ 544.607728][ T2956] should_failslab+0x9/0x20 [ 544.612255][ T2956] kmem_cache_alloc+0x3f/0x300 [ 544.617287][ T2956] ? __kernfs_new_node+0xdb/0x6e0 [ 544.622434][ T2956] __kernfs_new_node+0xdb/0x6e0 [ 544.627368][ T2956] ? is_module_text_address+0xe1/0x140 [ 544.633005][ T2956] ? kernfs_new_node+0x170/0x170 [ 544.638306][ T2956] ? ptr_to_hashval+0x60/0x60 [ 544.643185][ T2956] ? arch_stack_walk+0xf8/0x140 [ 544.648043][ T2956] ? snprintf+0xd6/0x120 [ 544.652799][ T2956] kernfs_new_node+0x97/0x170 [ 544.657494][ T2956] __kernfs_create_file+0x4a/0x270 [ 544.662686][ T2956] cgroup_addrm_files+0xab8/0xfe0 [ 544.667707][ T2956] ? ____kasan_kmalloc+0xdc/0x110 [ 544.672739][ T2956] ? __kasan_kmalloc+0x9/0x10 [ 544.677429][ T2956] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 544.683113][ T2956] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 544.689356][ T2956] ? delete_node+0x759/0x7b0 [ 544.694130][ T2956] ? __kasan_check_read+0x11/0x20 [ 544.699139][ T2956] ? delete_node+0x759/0x7b0 [ 544.703723][ T2956] ? __kasan_check_write+0x14/0x20 [ 544.708826][ T2956] ? idr_replace+0x1c4/0x230 [ 544.713415][ T2956] ? idr_get_next+0x4b0/0x4b0 [ 544.718245][ T2956] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 544.723248][ T2956] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 544.728431][ T2956] css_populate_dir+0x137/0x370 [ 544.733410][ T2956] cgroup_apply_control_enable+0x8b9/0x12f0 [ 544.739387][ T2956] cgroup_apply_control+0x8e/0x7e0 [ 544.744495][ T2956] ? css_next_child+0x160/0x160 [ 544.749351][ T2956] ? stack_trace_save+0x12d/0x1f0 [ 544.754548][ T2956] ? io_schedule+0x120/0x120 [ 544.759138][ T2956] ? kernfs_fop_write_iter+0x15e/0x410 [ 544.764614][ T2956] ? __kasan_check_write+0x14/0x20 [ 544.769727][ T2956] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 544.775133][ T2956] cgroup_subtree_control_write+0xd19/0x1310 [ 544.781129][ T2956] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 544.787192][ T2956] ? __kasan_check_write+0x14/0x20 [ 544.792375][ T2956] ? _copy_from_iter+0x3fb/0xd60 [ 544.797304][ T2956] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 544.803296][ T2956] cgroup_file_write+0x28e/0x590 [ 544.809365][ T2956] ? cgroup_seqfile_stop+0xc0/0xc0 [ 544.814705][ T2956] ? mutex_trylock+0x180/0x180 [ 544.819776][ T2956] ? __kasan_check_write+0x14/0x20 [ 544.824873][ T2956] kernfs_fop_write_iter+0x2d0/0x410 [ 544.830137][ T2956] ? cgroup_seqfile_stop+0xc0/0xc0 [ 544.835683][ T2956] vfs_write+0xc4a/0xf80 [ 544.840024][ T2956] ? slab_free_freelist_hook+0xcc/0x1a0 [ 544.845557][ T2956] ? kernel_write+0x420/0x420 [ 544.850233][ T2956] ? do_sys_openat2+0x397/0x470 [ 544.855066][ T2956] ? __kasan_check_read+0x11/0x20 [ 544.860082][ T2956] ? __fdget_pos+0x27e/0x310 [ 544.864924][ T2956] ksys_write+0x198/0x2c0 [ 544.869952][ T2956] ? __ia32_sys_read+0x90/0x90 [ 544.874707][ T2956] ? debug_smp_processor_id+0x17/0x20 [ 544.880076][ T2956] __x64_sys_write+0x7b/0x90 [ 544.884657][ T2956] do_syscall_64+0x34/0x70 [ 544.889060][ T2956] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 544.894941][ T2956] RIP: 0033:0x7f48883727a9 [ 544.899358][ T2956] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 544.919136][ T2956] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 544.927692][ T2956] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 544.935789][ T2956] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 544.943975][ T2956] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 544.952024][ T2956] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 544.959997][ T2956] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000030 [ 544.968377][ T2956] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 544.997026][ T2962] FAULT_INJECTION: forcing a failure. [ 544.997026][ T2962] name failslab, interval 1, probability 0, space 0, times 0 [ 545.009848][ T2962] CPU: 0 PID: 2962 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 545.020262][ T2962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 545.030309][ T2962] Call Trace: [ 545.033596][ T2962] dump_stack_lvl+0x1e2/0x24b [ 545.038259][ T2962] ? bfq_pos_tree_add_move+0x43e/0x43e [ 545.043719][ T2962] ? selinux_kernfs_init_security+0x1a8/0x760 [ 545.049826][ T2962] dump_stack+0x15/0x17 [ 545.053988][ T2962] should_fail+0x3c0/0x510 [ 545.058494][ T2962] ? __kernfs_new_node+0x99/0x6e0 [ 545.063528][ T2962] __should_failslab+0x9f/0xe0 [ 545.068425][ T2962] should_failslab+0x9/0x20 [ 545.073022][ T2962] __kmalloc_track_caller+0x5f/0x350 [ 545.078313][ T2962] kstrdup_const+0x55/0x90 [ 545.082713][ T2962] __kernfs_new_node+0x99/0x6e0 [ 545.087543][ T2962] ? is_module_text_address+0xe1/0x140 [ 545.093004][ T2962] ? kernfs_new_node+0x170/0x170 [ 545.097949][ T2962] ? ptr_to_hashval+0x60/0x60 [ 545.102603][ T2962] ? mutex_lock+0xb2/0x1e0 [ 545.106996][ T2962] ? snprintf+0xd6/0x120 [ 545.111265][ T2962] ? mutex_unlock+0x29/0xf0 [ 545.115768][ T2962] kernfs_new_node+0x97/0x170 [ 545.120706][ T2962] __kernfs_create_file+0x4a/0x270 [ 545.125897][ T2962] cgroup_addrm_files+0xab8/0xfe0 [ 545.130924][ T2962] ? ____kasan_kmalloc+0xdc/0x110 [ 545.135962][ T2962] ? __kasan_kmalloc+0x9/0x10 [ 545.140643][ T2962] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 545.146242][ T2962] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 545.152711][ T2962] ? delete_node+0x759/0x7b0 [ 545.157483][ T2962] ? __kasan_check_read+0x11/0x20 [ 545.162493][ T2962] ? idr_replace+0x1c4/0x230 [ 545.167059][ T2962] ? idr_get_next+0x4b0/0x4b0 [ 545.172170][ T2962] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 545.177174][ T2962] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 545.182346][ T2962] css_populate_dir+0x137/0x370 [ 545.187189][ T2962] cgroup_apply_control_enable+0x8b9/0x12f0 [ 545.193078][ T2962] cgroup_apply_control+0x8e/0x7e0 [ 545.198262][ T2962] ? css_next_child+0x160/0x160 [ 545.203107][ T2962] ? stack_trace_save+0x12d/0x1f0 [ 545.208110][ T2962] ? io_schedule+0x120/0x120 [ 545.212705][ T2962] ? kernfs_fop_write_iter+0x15e/0x410 [ 545.218144][ T2962] ? __kasan_check_write+0x14/0x20 [ 545.223232][ T2962] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 545.228846][ T2962] cgroup_subtree_control_write+0xd19/0x1310 [ 545.234898][ T2962] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 545.240893][ T2962] ? __kasan_check_write+0x14/0x20 [ 545.246088][ T2962] ? _copy_from_iter+0x3fb/0xd60 [ 545.251014][ T2962] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 545.256982][ T2962] cgroup_file_write+0x28e/0x590 [ 545.261910][ T2962] ? cgroup_seqfile_stop+0xc0/0xc0 [ 545.266999][ T2962] ? mutex_trylock+0x180/0x180 [ 545.271753][ T2962] ? __kasan_check_write+0x14/0x20 [ 545.276853][ T2962] kernfs_fop_write_iter+0x2d0/0x410 [ 545.282249][ T2962] ? cgroup_seqfile_stop+0xc0/0xc0 [ 545.287340][ T2962] vfs_write+0xc4a/0xf80 [ 545.291556][ T2962] ? slab_free_freelist_hook+0xcc/0x1a0 [ 545.297110][ T2962] ? kernel_write+0x420/0x420 [ 545.301803][ T2962] ? do_sys_openat2+0x397/0x470 [ 545.306651][ T2962] ? __kasan_check_read+0x11/0x20 [ 545.311652][ T2962] ? __fdget_pos+0x27e/0x310 [ 545.316230][ T2962] ksys_write+0x198/0x2c0 [ 545.320555][ T2962] ? __ia32_sys_read+0x90/0x90 [ 545.325316][ T2962] ? debug_smp_processor_id+0x17/0x20 [ 545.330840][ T2962] __x64_sys_write+0x7b/0x90 [ 545.335934][ T2962] do_syscall_64+0x34/0x70 [ 545.340346][ T2962] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 545.346352][ T2962] RIP: 0033:0x7f48883727a9 [ 545.350853][ T2962] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 545.370853][ T2962] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 545.379266][ T2962] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 545.387669][ T2962] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 545.395650][ T2962] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 545.403616][ T2962] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 545.411847][ T2962] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000044 [ 545.420065][ T2962] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 545.457331][ T2965] FAULT_INJECTION: forcing a failure. [ 545.457331][ T2965] name failslab, interval 1, probability 0, space 0, times 0 [ 545.470141][ T2965] CPU: 1 PID: 2965 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 545.480644][ T2965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 545.490687][ T2965] Call Trace: [ 545.494077][ T2965] dump_stack_lvl+0x1e2/0x24b [ 545.498829][ T2965] ? bfq_pos_tree_add_move+0x43e/0x43e [ 545.504719][ T2965] ? selinux_kernfs_init_security+0x1a8/0x760 [ 545.511128][ T2965] dump_stack+0x15/0x17 [ 545.515748][ T2965] should_fail+0x3c0/0x510 [ 545.520237][ T2965] ? __kernfs_new_node+0x99/0x6e0 [ 545.525330][ T2965] __should_failslab+0x9f/0xe0 [ 545.530091][ T2965] should_failslab+0x9/0x20 [ 545.534575][ T2965] __kmalloc_track_caller+0x5f/0x350 [ 545.539950][ T2965] kstrdup_const+0x55/0x90 [ 545.544344][ T2965] __kernfs_new_node+0x99/0x6e0 [ 545.549435][ T2965] ? is_module_text_address+0xe1/0x140 [ 545.554966][ T2965] ? kernfs_new_node+0x170/0x170 [ 545.559892][ T2965] ? ptr_to_hashval+0x60/0x60 [ 545.564586][ T2965] ? mutex_lock+0xb2/0x1e0 [ 545.568985][ T2965] ? snprintf+0xd6/0x120 [ 545.573379][ T2965] ? mutex_unlock+0x29/0xf0 [ 545.577856][ T2965] kernfs_new_node+0x97/0x170 [ 545.582506][ T2965] __kernfs_create_file+0x4a/0x270 [ 545.587689][ T2965] cgroup_addrm_files+0xab8/0xfe0 [ 545.592696][ T2965] ? ____kasan_kmalloc+0xdc/0x110 [ 545.597976][ T2965] ? __kasan_kmalloc+0x9/0x10 [ 545.602648][ T2965] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 545.608191][ T2965] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 545.614322][ T2965] ? delete_node+0x759/0x7b0 [ 545.618887][ T2965] ? __kasan_check_read+0x11/0x20 [ 545.623889][ T2965] ? idr_replace+0x1c4/0x230 [ 545.628820][ T2965] ? idr_get_next+0x4b0/0x4b0 [ 545.633487][ T2965] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 545.638588][ T2965] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 545.643828][ T2965] css_populate_dir+0x137/0x370 [ 545.648671][ T2965] cgroup_apply_control_enable+0x8b9/0x12f0 [ 545.654566][ T2965] cgroup_apply_control+0x8e/0x7e0 [ 545.659661][ T2965] ? css_next_child+0x160/0x160 [ 545.664486][ T2965] ? stack_trace_save+0x12d/0x1f0 [ 545.669483][ T2965] ? io_schedule+0x120/0x120 [ 545.674186][ T2965] ? kernfs_fop_write_iter+0x15e/0x410 [ 545.679634][ T2965] ? __kasan_check_write+0x14/0x20 [ 545.684754][ T2965] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 545.690034][ T2965] cgroup_subtree_control_write+0xd19/0x1310 [ 545.696007][ T2965] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 545.701965][ T2965] ? __kasan_check_write+0x14/0x20 [ 545.707061][ T2965] ? _copy_from_iter+0x3fb/0xd60 [ 545.711985][ T2965] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 545.717957][ T2965] cgroup_file_write+0x28e/0x590 [ 545.723053][ T2965] ? cgroup_seqfile_stop+0xc0/0xc0 [ 545.728183][ T2965] ? mutex_trylock+0x180/0x180 [ 545.732967][ T2965] ? __kasan_check_write+0x14/0x20 [ 545.738069][ T2965] kernfs_fop_write_iter+0x2d0/0x410 [ 545.743770][ T2965] ? cgroup_seqfile_stop+0xc0/0xc0 [ 545.749144][ T2965] vfs_write+0xc4a/0xf80 [ 545.753648][ T2965] ? slab_free_freelist_hook+0xcc/0x1a0 [ 545.759195][ T2965] ? kernel_write+0x420/0x420 [ 545.763894][ T2965] ? do_sys_openat2+0x397/0x470 [ 545.768748][ T2965] ? __kasan_check_read+0x11/0x20 [ 545.773771][ T2965] ? __fdget_pos+0x27e/0x310 [ 545.778359][ T2965] ksys_write+0x198/0x2c0 [ 545.782771][ T2965] ? __ia32_sys_read+0x90/0x90 [ 545.787526][ T2965] ? debug_smp_processor_id+0x17/0x20 [ 545.792879][ T2965] __x64_sys_write+0x7b/0x90 [ 545.797452][ T2965] do_syscall_64+0x34/0x70 [ 545.801951][ T2965] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 545.807931][ T2965] RIP: 0033:0x7f48883727a9 [ 545.812343][ T2965] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 545.832114][ T2965] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 545.840645][ T2965] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 545.848771][ T2965] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 545.857002][ T2965] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 545.864969][ T2965] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 545.872953][ T2965] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000045 [ 545.881290][ T2965] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 545.927260][ T2960] FAULT_INJECTION: forcing a failure. [ 545.927260][ T2960] name failslab, interval 1, probability 0, space 0, times 0 [ 545.940042][ T2960] CPU: 1 PID: 2960 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 545.950485][ T2960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 545.960682][ T2960] Call Trace: [ 545.963972][ T2960] dump_stack_lvl+0x1e2/0x24b [ 545.968647][ T2960] ? bfq_pos_tree_add_move+0x43e/0x43e [ 545.974114][ T2960] ? selinux_kernfs_init_security+0x1a8/0x760 [ 545.980204][ T2960] dump_stack+0x15/0x17 [ 545.984365][ T2960] should_fail+0x3c0/0x510 [ 545.988874][ T2960] ? __kernfs_new_node+0x99/0x6e0 [ 545.993905][ T2960] __should_failslab+0x9f/0xe0 [ 545.998666][ T2960] should_failslab+0x9/0x20 [ 546.003358][ T2960] __kmalloc_track_caller+0x5f/0x350 [ 546.008677][ T2960] kstrdup_const+0x55/0x90 [ 546.013076][ T2960] __kernfs_new_node+0x99/0x6e0 [ 546.018328][ T2960] ? is_module_text_address+0xe1/0x140 [ 546.023861][ T2960] ? kernfs_new_node+0x170/0x170 [ 546.028836][ T2960] ? ptr_to_hashval+0x60/0x60 [ 546.033490][ T2960] ? mutex_lock+0xb2/0x1e0 [ 546.038097][ T2960] ? snprintf+0xd6/0x120 [ 546.042327][ T2960] ? mutex_unlock+0x29/0xf0 [ 546.046816][ T2960] kernfs_new_node+0x97/0x170 [ 546.051498][ T2960] __kernfs_create_file+0x4a/0x270 [ 546.056594][ T2960] cgroup_addrm_files+0xab8/0xfe0 [ 546.061612][ T2960] ? ____kasan_kmalloc+0xdc/0x110 [ 546.066611][ T2960] ? __kasan_kmalloc+0x9/0x10 [ 546.071279][ T2960] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 546.076891][ T2960] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 546.083024][ T2960] ? delete_node+0x759/0x7b0 [ 546.087603][ T2960] ? __kasan_check_read+0x11/0x20 [ 546.092607][ T2960] ? idr_replace+0x1c4/0x230 [ 546.097183][ T2960] ? idr_get_next+0x4b0/0x4b0 [ 546.101853][ T2960] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 546.106854][ T2960] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 546.112047][ T2960] css_populate_dir+0x137/0x370 [ 546.116914][ T2960] cgroup_apply_control_enable+0x8b9/0x12f0 [ 546.122975][ T2960] cgroup_apply_control+0x8e/0x7e0 [ 546.128135][ T2960] ? css_next_child+0x160/0x160 [ 546.133068][ T2960] ? stack_trace_save+0x12d/0x1f0 [ 546.138077][ T2960] ? io_schedule+0x120/0x120 [ 546.142666][ T2960] ? kernfs_fop_write_iter+0x15e/0x410 [ 546.148112][ T2960] ? __kasan_check_write+0x14/0x20 [ 546.153322][ T2960] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 546.158687][ T2960] cgroup_subtree_control_write+0xd19/0x1310 [ 546.164651][ T2960] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 546.170713][ T2960] ? __kasan_check_write+0x14/0x20 [ 546.175810][ T2960] ? _copy_from_iter+0x3fb/0xd60 [ 546.180741][ T2960] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 546.186993][ T2960] cgroup_file_write+0x28e/0x590 [ 546.192015][ T2960] ? cgroup_seqfile_stop+0xc0/0xc0 [ 546.197109][ T2960] ? mutex_trylock+0x180/0x180 [ 546.201956][ T2960] ? __kasan_check_write+0x14/0x20 [ 546.207064][ T2960] kernfs_fop_write_iter+0x2d0/0x410 [ 546.212466][ T2960] ? cgroup_seqfile_stop+0xc0/0xc0 [ 546.217772][ T2960] vfs_write+0xc4a/0xf80 [ 546.222198][ T2960] ? slab_free_freelist_hook+0xcc/0x1a0 [ 546.228083][ T2960] ? kernel_write+0x420/0x420 [ 546.233006][ T2960] ? do_sys_openat2+0x397/0x470 [ 546.238399][ T2960] ? __kasan_check_read+0x11/0x20 [ 546.243629][ T2960] ? __fdget_pos+0x27e/0x310 [ 546.248230][ T2960] ksys_write+0x198/0x2c0 [ 546.252570][ T2960] ? __ia32_sys_read+0x90/0x90 [ 546.257317][ T2960] ? debug_smp_processor_id+0x17/0x20 [ 546.262675][ T2960] __x64_sys_write+0x7b/0x90 [ 546.267263][ T2960] do_syscall_64+0x34/0x70 [ 546.271689][ T2960] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 546.277655][ T2960] RIP: 0033:0x7f48883727a9 [ 546.282060][ T2960] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 546.301656][ T2960] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 546.310380][ T2960] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 546.318698][ T2960] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 546.326657][ T2960] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 546.334618][ T2960] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 546.342665][ T2960] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000035 [ 546.350806][ T2960] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 546.387323][ T2963] FAULT_INJECTION: forcing a failure. [ 546.387323][ T2963] name failslab, interval 1, probability 0, space 0, times 0 [ 546.400354][ T2963] CPU: 0 PID: 2963 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 546.412005][ T2963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 546.422053][ T2963] Call Trace: [ 546.425519][ T2963] dump_stack_lvl+0x1e2/0x24b [ 546.430399][ T2963] ? bfq_pos_tree_add_move+0x43e/0x43e [ 546.435963][ T2963] dump_stack+0x15/0x17 [ 546.440103][ T2963] should_fail+0x3c0/0x510 [ 546.444499][ T2963] __should_failslab+0x9f/0xe0 [ 546.449245][ T2963] should_failslab+0x9/0x20 [ 546.453729][ T2963] kmem_cache_alloc+0x3f/0x300 [ 546.458720][ T2963] ? radix_tree_node_alloc+0x194/0x3c0 [ 546.464210][ T2963] radix_tree_node_alloc+0x194/0x3c0 [ 546.469554][ T2963] ? kernfs_new_node+0x97/0x170 [ 546.474492][ T2963] ? __kernfs_create_file+0x4a/0x270 [ 546.479795][ T2963] ? cgroup_addrm_files+0xab8/0xfe0 [ 546.484977][ T2963] ? cgroup_apply_control_enable+0x8b9/0x12f0 [ 546.491027][ T2963] idr_get_free+0x2d8/0x990 [ 546.495553][ T2963] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 546.501601][ T2963] idr_alloc_cyclic+0x1ef/0x5d0 [ 546.506436][ T2963] ? idr_alloc+0x2f0/0x2f0 [ 546.511198][ T2963] ? __kasan_check_write+0x14/0x20 [ 546.516377][ T2963] ? _raw_spin_lock+0xa3/0x1b0 [ 546.521242][ T2963] ? __radix_tree_preload+0x361/0x3e0 [ 546.526959][ T2963] ? kmem_cache_alloc+0x1a4/0x300 [ 546.531967][ T2963] __kernfs_new_node+0x124/0x6e0 [ 546.536900][ T2963] ? is_module_text_address+0xe1/0x140 [ 546.542349][ T2963] ? kernfs_new_node+0x170/0x170 [ 546.547708][ T2963] ? ptr_to_hashval+0x60/0x60 [ 546.552452][ T2963] ? arch_stack_walk+0xf8/0x140 [ 546.557301][ T2963] ? snprintf+0xd6/0x120 [ 546.561534][ T2963] kernfs_new_node+0x97/0x170 [ 546.566215][ T2963] __kernfs_create_file+0x4a/0x270 [ 546.571519][ T2963] cgroup_addrm_files+0xab8/0xfe0 [ 546.577148][ T2963] ? ____kasan_kmalloc+0xdc/0x110 [ 546.582157][ T2963] ? __kasan_kmalloc+0x9/0x10 [ 546.586834][ T2963] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 546.592460][ T2963] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 546.598603][ T2963] ? delete_node+0x759/0x7b0 [ 546.603183][ T2963] ? __kasan_check_read+0x11/0x20 [ 546.608187][ T2963] ? delete_node+0x759/0x7b0 [ 546.612765][ T2963] ? __kasan_check_write+0x14/0x20 [ 546.617881][ T2963] ? idr_replace+0x1c4/0x230 [ 546.622461][ T2963] ? idr_get_next+0x4b0/0x4b0 [ 546.627203][ T2963] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 546.632206][ T2963] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 546.637398][ T2963] css_populate_dir+0x137/0x370 [ 546.642225][ T2963] cgroup_apply_control_enable+0x8b9/0x12f0 [ 546.648097][ T2963] cgroup_apply_control+0x8e/0x7e0 [ 546.653198][ T2963] ? css_next_child+0x160/0x160 [ 546.658043][ T2963] ? stack_trace_save+0x12d/0x1f0 [ 546.663070][ T2963] ? io_schedule+0x120/0x120 [ 546.667653][ T2963] ? kernfs_fop_write_iter+0x15e/0x410 [ 546.673085][ T2963] ? __kasan_check_write+0x14/0x20 [ 546.678181][ T2963] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 546.683449][ T2963] cgroup_subtree_control_write+0xd19/0x1310 [ 546.689405][ T2963] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 546.695370][ T2963] ? __kasan_check_write+0x14/0x20 [ 546.700493][ T2963] ? _copy_from_iter+0x3fb/0xd60 [ 546.705408][ T2963] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 546.711363][ T2963] cgroup_file_write+0x28e/0x590 [ 546.716284][ T2963] ? cgroup_seqfile_stop+0xc0/0xc0 [ 546.721373][ T2963] ? mutex_trylock+0x180/0x180 [ 546.726123][ T2963] ? __kasan_check_write+0x14/0x20 [ 546.731222][ T2963] kernfs_fop_write_iter+0x2d0/0x410 [ 546.736489][ T2963] ? cgroup_seqfile_stop+0xc0/0xc0 [ 546.741581][ T2963] vfs_write+0xc4a/0xf80 [ 546.745884][ T2963] ? slab_free_freelist_hook+0xcc/0x1a0 [ 546.751412][ T2963] ? kernel_write+0x420/0x420 [ 546.756195][ T2963] ? do_sys_openat2+0x397/0x470 [ 546.761037][ T2963] ? __kasan_check_read+0x11/0x20 [ 546.766051][ T2963] ? __fdget_pos+0x27e/0x310 [ 546.770681][ T2963] ksys_write+0x198/0x2c0 [ 546.775001][ T2963] ? __ia32_sys_read+0x90/0x90 [ 546.779744][ T2963] ? debug_smp_processor_id+0x17/0x20 [ 546.785103][ T2963] __x64_sys_write+0x7b/0x90 [ 546.789675][ T2963] do_syscall_64+0x34/0x70 [ 546.794075][ T2963] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 546.799972][ T2963] RIP: 0033:0x7f48883727a9 [ 546.804562][ T2963] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 546.824263][ T2963] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 546.832923][ T2963] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 546.840972][ T2963] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 546.849394][ T2963] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 546.857354][ T2963] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 546.865434][ T2963] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000038 [ 546.897112][ T2957] FAULT_INJECTION: forcing a failure. [ 546.897112][ T2957] name failslab, interval 1, probability 0, space 0, times 0 [ 546.909870][ T2957] CPU: 1 PID: 2957 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 546.920264][ T2957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 546.930329][ T2957] Call Trace: [ 546.933611][ T2957] dump_stack_lvl+0x1e2/0x24b [ 546.938293][ T2957] ? bfq_pos_tree_add_move+0x43e/0x43e [ 546.943736][ T2957] ? selinux_kernfs_init_security+0x1a8/0x760 [ 546.949792][ T2957] dump_stack+0x15/0x17 [ 546.953948][ T2957] should_fail+0x3c0/0x510 [ 546.958345][ T2957] ? __kernfs_new_node+0x99/0x6e0 [ 546.963408][ T2957] __should_failslab+0x9f/0xe0 [ 546.968280][ T2957] should_failslab+0x9/0x20 [ 546.972770][ T2957] __kmalloc_track_caller+0x5f/0x350 [ 546.978055][ T2957] kstrdup_const+0x55/0x90 [ 546.982470][ T2957] __kernfs_new_node+0x99/0x6e0 [ 546.987999][ T2957] ? is_module_text_address+0xe1/0x140 [ 546.993503][ T2957] ? kernfs_new_node+0x170/0x170 [ 546.998523][ T2957] ? ptr_to_hashval+0x60/0x60 [ 547.003346][ T2957] ? mutex_lock+0xb2/0x1e0 [ 547.007833][ T2957] ? snprintf+0xd6/0x120 [ 547.012062][ T2957] ? mutex_unlock+0x29/0xf0 [ 547.016571][ T2957] kernfs_new_node+0x97/0x170 [ 547.021250][ T2957] __kernfs_create_file+0x4a/0x270 [ 547.026637][ T2957] cgroup_addrm_files+0xab8/0xfe0 [ 547.032369][ T2957] ? ____kasan_kmalloc+0xdc/0x110 [ 547.037407][ T2957] ? __kasan_kmalloc+0x9/0x10 [ 547.042071][ T2957] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 547.047609][ T2957] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 547.053919][ T2957] ? delete_node+0x759/0x7b0 [ 547.058492][ T2957] ? __kasan_check_read+0x11/0x20 [ 547.063524][ T2957] ? idr_replace+0x1c4/0x230 [ 547.068300][ T2957] ? idr_get_next+0x4b0/0x4b0 [ 547.073006][ T2957] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 547.078568][ T2957] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 547.083761][ T2957] css_populate_dir+0x137/0x370 [ 547.088713][ T2957] cgroup_apply_control_enable+0x8b9/0x12f0 [ 547.094685][ T2957] cgroup_apply_control+0x8e/0x7e0 [ 547.099798][ T2957] ? css_next_child+0x160/0x160 [ 547.104630][ T2957] ? stack_trace_save+0x12d/0x1f0 [ 547.109659][ T2957] ? io_schedule+0x120/0x120 [ 547.114232][ T2957] ? kernfs_fop_write_iter+0x15e/0x410 [ 547.119683][ T2957] ? __kasan_check_write+0x14/0x20 [ 547.124890][ T2957] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 547.130157][ T2957] cgroup_subtree_control_write+0xd19/0x1310 [ 547.136118][ T2957] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 547.142345][ T2957] ? __kasan_check_write+0x14/0x20 [ 547.147432][ T2957] ? _copy_from_iter+0x3fb/0xd60 [ 547.152452][ T2957] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 547.158412][ T2957] cgroup_file_write+0x28e/0x590 [ 547.163327][ T2957] ? cgroup_seqfile_stop+0xc0/0xc0 [ 547.168693][ T2957] ? mutex_trylock+0x180/0x180 [ 547.173884][ T2957] ? __kasan_check_write+0x14/0x20 [ 547.178984][ T2957] kernfs_fop_write_iter+0x2d0/0x410 [ 547.184423][ T2957] ? cgroup_seqfile_stop+0xc0/0xc0 [ 547.189532][ T2957] vfs_write+0xc4a/0xf80 [ 547.193759][ T2957] ? slab_free_freelist_hook+0xcc/0x1a0 [ 547.199373][ T2957] ? kernel_write+0x420/0x420 [ 547.204027][ T2957] ? do_sys_openat2+0x397/0x470 [ 547.208878][ T2957] ? __kasan_check_read+0x11/0x20 [ 547.213987][ T2957] ? __fdget_pos+0x27e/0x310 [ 547.218659][ T2957] ksys_write+0x198/0x2c0 [ 547.222991][ T2957] ? __ia32_sys_read+0x90/0x90 [ 547.227750][ T2957] ? debug_smp_processor_id+0x17/0x20 [ 547.233121][ T2957] __x64_sys_write+0x7b/0x90 [ 547.237807][ T2957] do_syscall_64+0x34/0x70 [ 547.242362][ T2957] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 547.248244][ T2957] RIP: 0033:0x7f48883727a9 [ 547.252637][ T2957] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 547.272335][ T2957] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 547.280744][ T2957] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 547.288830][ T2957] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 547.296870][ T2957] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 547.305304][ T2957] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 547.313276][ T2957] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000031 [ 547.321593][ T2957] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 547.357277][ T2961] FAULT_INJECTION: forcing a failure. [ 547.357277][ T2961] name failslab, interval 1, probability 0, space 0, times 0 [ 547.370771][ T2961] CPU: 0 PID: 2961 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 547.381376][ T2961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 547.391457][ T2961] Call Trace: [ 547.394867][ T2961] dump_stack_lvl+0x1e2/0x24b [ 547.399534][ T2961] ? bfq_pos_tree_add_move+0x43e/0x43e [ 547.404992][ T2961] ? selinux_kernfs_init_security+0x1a8/0x760 [ 547.411051][ T2961] dump_stack+0x15/0x17 [ 547.415382][ T2961] should_fail+0x3c0/0x510 [ 547.419790][ T2961] ? __kernfs_new_node+0x99/0x6e0 [ 547.424916][ T2961] __should_failslab+0x9f/0xe0 [ 547.429700][ T2961] should_failslab+0x9/0x20 [ 547.434222][ T2961] __kmalloc_track_caller+0x5f/0x350 [ 547.439685][ T2961] kstrdup_const+0x55/0x90 [ 547.444170][ T2961] __kernfs_new_node+0x99/0x6e0 [ 547.449015][ T2961] ? is_module_text_address+0xe1/0x140 [ 547.454636][ T2961] ? kernfs_new_node+0x170/0x170 [ 547.459555][ T2961] ? ptr_to_hashval+0x60/0x60 [ 547.464212][ T2961] ? mutex_lock+0xb2/0x1e0 [ 547.468637][ T2961] ? snprintf+0xd6/0x120 [ 547.472952][ T2961] ? mutex_unlock+0x29/0xf0 [ 547.477443][ T2961] kernfs_new_node+0x97/0x170 [ 547.482200][ T2961] __kernfs_create_file+0x4a/0x270 [ 547.487403][ T2961] cgroup_addrm_files+0xab8/0xfe0 [ 547.492687][ T2961] ? ____kasan_kmalloc+0xdc/0x110 [ 547.497713][ T2961] ? __kasan_kmalloc+0x9/0x10 [ 547.502523][ T2961] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 547.508090][ T2961] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 547.514266][ T2961] ? delete_node+0x759/0x7b0 [ 547.519502][ T2961] ? __kasan_check_read+0x11/0x20 [ 547.524720][ T2961] ? idr_replace+0x1c4/0x230 [ 547.529321][ T2961] ? idr_get_next+0x4b0/0x4b0 [ 547.534150][ T2961] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 547.539170][ T2961] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 547.544397][ T2961] css_populate_dir+0x137/0x370 [ 547.549262][ T2961] cgroup_apply_control_enable+0x8b9/0x12f0 [ 547.555237][ T2961] cgroup_apply_control+0x8e/0x7e0 [ 547.560353][ T2961] ? css_next_child+0x160/0x160 [ 547.565277][ T2961] ? stack_trace_save+0x12d/0x1f0 [ 547.570330][ T2961] ? io_schedule+0x120/0x120 [ 547.575359][ T2961] ? kernfs_fop_write_iter+0x15e/0x410 [ 547.580832][ T2961] ? __kasan_check_write+0x14/0x20 [ 547.585943][ T2961] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 547.591210][ T2961] cgroup_subtree_control_write+0xd19/0x1310 [ 547.597172][ T2961] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 547.603132][ T2961] ? __kasan_check_write+0x14/0x20 [ 547.608224][ T2961] ? _copy_from_iter+0x3fb/0xd60 [ 547.613163][ T2961] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 547.619139][ T2961] cgroup_file_write+0x28e/0x590 [ 547.624054][ T2961] ? cgroup_seqfile_stop+0xc0/0xc0 [ 547.629145][ T2961] ? mutex_trylock+0x180/0x180 [ 547.633905][ T2961] ? __kasan_check_write+0x14/0x20 [ 547.638997][ T2961] kernfs_fop_write_iter+0x2d0/0x410 [ 547.644285][ T2961] ? cgroup_seqfile_stop+0xc0/0xc0 [ 547.649376][ T2961] vfs_write+0xc4a/0xf80 [ 547.653609][ T2961] ? slab_free_freelist_hook+0xcc/0x1a0 [ 547.659153][ T2961] ? kernel_write+0x420/0x420 [ 547.663806][ T2961] ? do_sys_openat2+0x397/0x470 [ 547.668806][ T2961] ? __kasan_check_read+0x11/0x20 [ 547.673808][ T2961] ? __fdget_pos+0x27e/0x310 [ 547.678405][ T2961] ksys_write+0x198/0x2c0 [ 547.682977][ T2961] ? __ia32_sys_read+0x90/0x90 [ 547.688032][ T2961] ? debug_smp_processor_id+0x17/0x20 [ 547.693405][ T2961] __x64_sys_write+0x7b/0x90 [ 547.698044][ T2961] do_syscall_64+0x34/0x70 [ 547.702452][ T2961] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 547.708455][ T2961] RIP: 0033:0x7f48883727a9 [ 547.712873][ T2961] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 547.732817][ T2961] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 547.741221][ T2961] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 547.749367][ T2961] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 547.757510][ T2961] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 547.765585][ T2961] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 547.773553][ T2961] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000030 [ 547.782191][ T2961] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 547.827324][ T2970] FAULT_INJECTION: forcing a failure. [ 547.827324][ T2970] name failslab, interval 1, probability 0, space 0, times 0 [ 547.840459][ T2970] CPU: 0 PID: 2970 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 547.851405][ T2970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 547.861458][ T2970] Call Trace: [ 547.864747][ T2970] dump_stack_lvl+0x1e2/0x24b [ 547.869414][ T2970] ? bfq_pos_tree_add_move+0x43e/0x43e [ 547.875228][ T2970] ? selinux_kernfs_init_security+0x1a8/0x760 [ 547.881273][ T2970] dump_stack+0x15/0x17 [ 547.885409][ T2970] should_fail+0x3c0/0x510 [ 547.889807][ T2970] ? __kernfs_new_node+0x99/0x6e0 [ 547.894835][ T2970] __should_failslab+0x9f/0xe0 [ 547.899581][ T2970] should_failslab+0x9/0x20 [ 547.904169][ T2970] __kmalloc_track_caller+0x5f/0x350 [ 547.909463][ T2970] kstrdup_const+0x55/0x90 [ 547.913890][ T2970] __kernfs_new_node+0x99/0x6e0 [ 547.918723][ T2970] ? is_module_text_address+0xe1/0x140 [ 547.924177][ T2970] ? kernfs_new_node+0x170/0x170 [ 547.929117][ T2970] ? ptr_to_hashval+0x60/0x60 [ 547.933775][ T2970] ? mutex_lock+0xb2/0x1e0 [ 547.938173][ T2970] ? snprintf+0xd6/0x120 [ 547.942696][ T2970] ? mutex_unlock+0x29/0xf0 [ 547.947200][ T2970] kernfs_new_node+0x97/0x170 [ 547.952031][ T2970] __kernfs_create_file+0x4a/0x270 [ 547.957147][ T2970] cgroup_addrm_files+0xab8/0xfe0 [ 547.962325][ T2970] ? ____kasan_kmalloc+0xdc/0x110 [ 547.967417][ T2970] ? __kasan_kmalloc+0x9/0x10 [ 547.972082][ T2970] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 547.977653][ T2970] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 547.983865][ T2970] ? delete_node+0x759/0x7b0 [ 547.988453][ T2970] ? __kasan_check_read+0x11/0x20 [ 547.993470][ T2970] ? idr_replace+0x1c4/0x230 [ 547.998082][ T2970] ? idr_get_next+0x4b0/0x4b0 [ 548.002848][ T2970] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 548.008076][ T2970] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 548.013284][ T2970] css_populate_dir+0x137/0x370 [ 548.018233][ T2970] cgroup_apply_control_enable+0x8b9/0x12f0 [ 548.024121][ T2970] cgroup_apply_control+0x8e/0x7e0 [ 548.029482][ T2970] ? css_next_child+0x160/0x160 [ 548.034405][ T2970] ? stack_trace_save+0x12d/0x1f0 [ 548.039433][ T2970] ? io_schedule+0x120/0x120 [ 548.044118][ T2970] ? kernfs_fop_write_iter+0x15e/0x410 [ 548.049607][ T2970] ? __kasan_check_write+0x14/0x20 [ 548.054846][ T2970] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 548.060304][ T2970] cgroup_subtree_control_write+0xd19/0x1310 [ 548.066286][ T2970] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 548.072343][ T2970] ? __kasan_check_write+0x14/0x20 [ 548.077919][ T2970] ? _copy_from_iter+0x3fb/0xd60 [ 548.082945][ T2970] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 548.089082][ T2970] cgroup_file_write+0x28e/0x590 [ 548.094032][ T2970] ? cgroup_seqfile_stop+0xc0/0xc0 [ 548.099143][ T2970] ? mutex_trylock+0x180/0x180 [ 548.103919][ T2970] ? __kasan_check_write+0x14/0x20 [ 548.109029][ T2970] kernfs_fop_write_iter+0x2d0/0x410 [ 548.114303][ T2970] ? cgroup_seqfile_stop+0xc0/0xc0 [ 548.119410][ T2970] vfs_write+0xc4a/0xf80 [ 548.123649][ T2970] ? slab_free_freelist_hook+0xcc/0x1a0 [ 548.129189][ T2970] ? kernel_write+0x420/0x420 [ 548.133867][ T2970] ? do_sys_openat2+0x397/0x470 [ 548.138728][ T2970] ? __kasan_check_read+0x11/0x20 [ 548.143931][ T2970] ? __fdget_pos+0x27e/0x310 [ 548.148513][ T2970] ksys_write+0x198/0x2c0 [ 548.152878][ T2970] ? __kasan_check_write+0x14/0x20 [ 548.158083][ T2970] ? __ia32_sys_read+0x90/0x90 [ 548.162939][ T2970] ? debug_smp_processor_id+0x17/0x20 [ 548.168380][ T2970] __x64_sys_write+0x7b/0x90 [ 548.172962][ T2970] do_syscall_64+0x34/0x70 [ 548.177362][ T2970] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 548.183297][ T2970] RIP: 0033:0x7f48883727a9 [ 548.187710][ T2970] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 548.207401][ T2970] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 548.215832][ T2970] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 548.224085][ T2970] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 548.232140][ T2970] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 548.240377][ T2970] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 548.248574][ T2970] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000031 [ 548.256827][ T2970] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 548.297247][ T2969] FAULT_INJECTION: forcing a failure. [ 548.297247][ T2969] name failslab, interval 1, probability 0, space 0, times 0 [ 548.310159][ T2969] CPU: 0 PID: 2969 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 548.320650][ T2969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 548.330689][ T2969] Call Trace: [ 548.334057][ T2969] dump_stack_lvl+0x1e2/0x24b [ 548.338712][ T2969] ? panic+0x7d7/0x7d7 [ 548.342853][ T2969] ? bfq_pos_tree_add_move+0x43e/0x43e [ 548.348373][ T2969] ? selinux_kernfs_init_security+0x1a8/0x760 [ 548.354415][ T2969] dump_stack+0x15/0x17 [ 548.358551][ T2969] should_fail+0x3c0/0x510 [ 548.362945][ T2969] __should_failslab+0x9f/0xe0 [ 548.367682][ T2969] should_failslab+0x9/0x20 [ 548.372255][ T2969] kmem_cache_alloc+0x3f/0x300 [ 548.377114][ T2969] ? __kernfs_new_node+0xdb/0x6e0 [ 548.382244][ T2969] __kernfs_new_node+0xdb/0x6e0 [ 548.387355][ T2969] ? is_module_text_address+0xe1/0x140 [ 548.392877][ T2969] ? kernfs_new_node+0x170/0x170 [ 548.398141][ T2969] ? ptr_to_hashval+0x60/0x60 [ 548.402800][ T2969] ? arch_stack_walk+0xf8/0x140 [ 548.407807][ T2969] ? snprintf+0xd6/0x120 [ 548.412028][ T2969] kernfs_new_node+0x97/0x170 [ 548.416699][ T2969] __kernfs_create_file+0x4a/0x270 [ 548.421879][ T2969] cgroup_addrm_files+0xab8/0xfe0 [ 548.426891][ T2969] ? ____kasan_kmalloc+0xdc/0x110 [ 548.431891][ T2969] ? __kasan_kmalloc+0x9/0x10 [ 548.436660][ T2969] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 548.442217][ T2969] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 548.448363][ T2969] ? delete_node+0x759/0x7b0 [ 548.453017][ T2969] ? __kasan_check_read+0x11/0x20 [ 548.458048][ T2969] ? delete_node+0x759/0x7b0 [ 548.462648][ T2969] ? __kasan_check_write+0x14/0x20 [ 548.468131][ T2969] ? idr_replace+0x1c4/0x230 [ 548.472836][ T2969] ? idr_get_next+0x4b0/0x4b0 [ 548.477842][ T2969] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 548.482859][ T2969] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 548.488053][ T2969] css_populate_dir+0x137/0x370 [ 548.492886][ T2969] cgroup_apply_control_enable+0x8b9/0x12f0 [ 548.498758][ T2969] cgroup_apply_control+0x8e/0x7e0 [ 548.503996][ T2969] ? css_next_child+0x160/0x160 [ 548.508843][ T2969] ? stack_trace_save+0x12d/0x1f0 [ 548.513879][ T2969] ? io_schedule+0x120/0x120 [ 548.518622][ T2969] ? kernfs_fop_write_iter+0x15e/0x410 [ 548.524172][ T2969] ? __kasan_check_write+0x14/0x20 [ 548.529276][ T2969] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 548.534552][ T2969] cgroup_subtree_control_write+0xd19/0x1310 [ 548.540823][ T2969] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 548.546809][ T2969] ? __kasan_check_write+0x14/0x20 [ 548.551910][ T2969] ? _copy_from_iter+0x3fb/0xd60 [ 548.556928][ T2969] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 548.563148][ T2969] cgroup_file_write+0x28e/0x590 [ 548.568073][ T2969] ? cgroup_seqfile_stop+0xc0/0xc0 [ 548.573423][ T2969] ? mutex_trylock+0x180/0x180 [ 548.578163][ T2969] ? __kasan_check_write+0x14/0x20 [ 548.583249][ T2969] kernfs_fop_write_iter+0x2d0/0x410 [ 548.588511][ T2969] ? cgroup_seqfile_stop+0xc0/0xc0 [ 548.593701][ T2969] vfs_write+0xc4a/0xf80 [ 548.597917][ T2969] ? slab_free_freelist_hook+0xcc/0x1a0 [ 548.603437][ T2969] ? kernel_write+0x420/0x420 [ 548.608354][ T2969] ? do_sys_openat2+0x397/0x470 [ 548.613194][ T2969] ? __kasan_check_read+0x11/0x20 [ 548.618292][ T2969] ? __fdget_pos+0x27e/0x310 [ 548.622863][ T2969] ksys_write+0x198/0x2c0 [ 548.627190][ T2969] ? __ia32_sys_read+0x90/0x90 [ 548.631939][ T2969] ? debug_smp_processor_id+0x17/0x20 [ 548.637769][ T2969] __x64_sys_write+0x7b/0x90 [ 548.642333][ T2969] do_syscall_64+0x34/0x70 [ 548.646724][ T2969] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 548.652594][ T2969] RIP: 0033:0x7f48883727a9 [ 548.656990][ T2969] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 548.676574][ T2969] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 548.684970][ T2969] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 548.693023][ T2969] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 548.700971][ T2969] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 548.708920][ T2969] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 548.716903][ T2969] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000032 [ 548.725287][ T2969] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 548.757032][ T2968] FAULT_INJECTION: forcing a failure. [ 548.757032][ T2968] name failslab, interval 1, probability 0, space 0, times 0 [ 548.770774][ T2968] CPU: 0 PID: 2968 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 548.781209][ T2968] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 548.791338][ T2968] Call Trace: [ 548.794625][ T2968] dump_stack_lvl+0x1e2/0x24b [ 548.799320][ T2968] ? bfq_pos_tree_add_move+0x43e/0x43e [ 548.804797][ T2968] ? selinux_kernfs_init_security+0x1a8/0x760 [ 548.810859][ T2968] dump_stack+0x15/0x17 [ 548.815172][ T2968] should_fail+0x3c0/0x510 [ 548.819574][ T2968] ? __kernfs_new_node+0x99/0x6e0 [ 548.824635][ T2968] __should_failslab+0x9f/0xe0 [ 548.829547][ T2968] should_failslab+0x9/0x20 [ 548.834281][ T2968] __kmalloc_track_caller+0x5f/0x350 [ 548.839567][ T2968] kstrdup_const+0x55/0x90 [ 548.845000][ T2968] __kernfs_new_node+0x99/0x6e0 [ 548.849972][ T2968] ? is_module_text_address+0xe1/0x140 [ 548.855585][ T2968] ? kernfs_new_node+0x170/0x170 [ 548.860606][ T2968] ? ptr_to_hashval+0x60/0x60 [ 548.865278][ T2968] ? mutex_lock+0xb2/0x1e0 [ 548.869678][ T2968] ? snprintf+0xd6/0x120 [ 548.873920][ T2968] ? mutex_unlock+0x29/0xf0 [ 548.878493][ T2968] kernfs_new_node+0x97/0x170 [ 548.883152][ T2968] __kernfs_create_file+0x4a/0x270 [ 548.888332][ T2968] cgroup_addrm_files+0xab8/0xfe0 [ 548.893361][ T2968] ? ____kasan_kmalloc+0xdc/0x110 [ 548.898366][ T2968] ? __kasan_kmalloc+0x9/0x10 [ 548.903022][ T2968] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 548.908585][ T2968] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 548.914726][ T2968] ? delete_node+0x759/0x7b0 [ 548.919411][ T2968] ? __kasan_check_read+0x11/0x20 [ 548.924455][ T2968] ? idr_replace+0x1c4/0x230 [ 548.929079][ T2968] ? idr_get_next+0x4b0/0x4b0 [ 548.933744][ T2968] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 548.938779][ T2968] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 548.944151][ T2968] css_populate_dir+0x137/0x370 [ 548.949095][ T2968] cgroup_apply_control_enable+0x8b9/0x12f0 [ 548.954980][ T2968] cgroup_apply_control+0x8e/0x7e0 [ 548.960077][ T2968] ? css_next_child+0x160/0x160 [ 548.964910][ T2968] ? stack_trace_save+0x12d/0x1f0 [ 548.969914][ T2968] ? io_schedule+0x120/0x120 [ 548.974570][ T2968] ? kernfs_fop_write_iter+0x15e/0x410 [ 548.980193][ T2968] ? __kasan_check_write+0x14/0x20 [ 548.985302][ T2968] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 548.990665][ T2968] cgroup_subtree_control_write+0xd19/0x1310 [ 548.996634][ T2968] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 549.002786][ T2968] ? __kasan_check_write+0x14/0x20 [ 549.008195][ T2968] ? _copy_from_iter+0x3fb/0xd60 [ 549.013128][ T2968] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 549.019379][ T2968] cgroup_file_write+0x28e/0x590 [ 549.024313][ T2968] ? cgroup_seqfile_stop+0xc0/0xc0 [ 549.029643][ T2968] ? mutex_trylock+0x180/0x180 [ 549.034725][ T2968] ? __kasan_check_write+0x14/0x20 [ 549.039955][ T2968] kernfs_fop_write_iter+0x2d0/0x410 [ 549.045470][ T2968] ? cgroup_seqfile_stop+0xc0/0xc0 [ 549.050578][ T2968] vfs_write+0xc4a/0xf80 [ 549.055085][ T2968] ? slab_free_freelist_hook+0xcc/0x1a0 [ 549.060627][ T2968] ? kernel_write+0x420/0x420 [ 549.065323][ T2968] ? do_sys_openat2+0x397/0x470 [ 549.070156][ T2968] ? __kasan_check_read+0x11/0x20 [ 549.075503][ T2968] ? __fdget_pos+0x27e/0x310 [ 549.080095][ T2968] ksys_write+0x198/0x2c0 [ 549.084446][ T2968] ? __ia32_sys_read+0x90/0x90 [ 549.089221][ T2968] ? debug_smp_processor_id+0x17/0x20 [ 549.094611][ T2968] __x64_sys_write+0x7b/0x90 [ 549.099198][ T2968] do_syscall_64+0x34/0x70 [ 549.103636][ T2968] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 549.109547][ T2968] RIP: 0033:0x7f48883727a9 [ 549.113977][ T2968] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 549.133747][ T2968] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 549.142345][ T2968] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 549.150393][ T2968] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 549.158466][ T2968] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 549.166420][ T2968] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 549.174384][ T2968] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000039 [ 549.182583][ T2968] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 549.217140][ T2971] FAULT_INJECTION: forcing a failure. [ 549.217140][ T2971] name failslab, interval 1, probability 0, space 0, times 0 [ 549.229828][ T2971] CPU: 1 PID: 2971 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 549.241469][ T2971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 549.251614][ T2971] Call Trace: [ 549.254899][ T2971] dump_stack_lvl+0x1e2/0x24b [ 549.259678][ T2971] ? panic+0x7d7/0x7d7 [ 549.263740][ T2971] ? arch_stack_walk+0x106/0x140 [ 549.268697][ T2971] ? bfq_pos_tree_add_move+0x43e/0x43e [ 549.274345][ T2971] ? do_syscall_64+0x34/0x70 [ 549.279070][ T2971] dump_stack+0x15/0x17 [ 549.283216][ T2971] should_fail+0x3c0/0x510 [ 549.287615][ T2971] __should_failslab+0x9f/0xe0 [ 549.292403][ T2971] should_failslab+0x9/0x20 [ 549.296909][ T2971] kmem_cache_alloc+0x3f/0x300 [ 549.301677][ T2971] ? __kernfs_new_node+0xdb/0x6e0 [ 549.306713][ T2971] __kernfs_new_node+0xdb/0x6e0 [ 549.311572][ T2971] ? is_module_text_address+0xe1/0x140 [ 549.317021][ T2971] ? kernfs_new_node+0x170/0x170 [ 549.322081][ T2971] ? ptr_to_hashval+0x60/0x60 [ 549.326862][ T2971] ? arch_stack_walk+0xf8/0x140 [ 549.331970][ T2971] ? snprintf+0xd6/0x120 [ 549.336547][ T2971] kernfs_new_node+0x97/0x170 [ 549.341332][ T2971] __kernfs_create_file+0x4a/0x270 [ 549.346440][ T2971] cgroup_addrm_files+0xab8/0xfe0 [ 549.351633][ T2971] ? ____kasan_kmalloc+0xdc/0x110 [ 549.356684][ T2971] ? __kasan_kmalloc+0x9/0x10 [ 549.361383][ T2971] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 549.366951][ T2971] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 549.373098][ T2971] ? delete_node+0x759/0x7b0 [ 549.377859][ T2971] ? __kasan_check_read+0x11/0x20 [ 549.382861][ T2971] ? delete_node+0x759/0x7b0 [ 549.387444][ T2971] ? __kasan_check_write+0x14/0x20 [ 549.392544][ T2971] ? idr_replace+0x1c4/0x230 [ 549.397157][ T2971] ? idr_get_next+0x4b0/0x4b0 [ 549.401930][ T2971] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 549.406956][ T2971] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 549.412145][ T2971] css_populate_dir+0x137/0x370 [ 549.417085][ T2971] cgroup_apply_control_enable+0x8b9/0x12f0 [ 549.423073][ T2971] cgroup_apply_control+0x8e/0x7e0 [ 549.428184][ T2971] ? css_next_child+0x160/0x160 [ 549.433026][ T2971] ? stack_trace_save+0x12d/0x1f0 [ 549.438208][ T2971] ? io_schedule+0x120/0x120 [ 549.442894][ T2971] ? kernfs_fop_write_iter+0x15e/0x410 [ 549.448472][ T2971] ? __kasan_check_write+0x14/0x20 [ 549.453722][ T2971] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 549.459446][ T2971] cgroup_subtree_control_write+0xd19/0x1310 [ 549.465534][ T2971] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 549.471624][ T2971] ? __kasan_check_write+0x14/0x20 [ 549.476932][ T2971] ? _copy_from_iter+0x3fb/0xd60 [ 549.482211][ T2971] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 549.488311][ T2971] cgroup_file_write+0x28e/0x590 [ 549.493589][ T2971] ? cgroup_seqfile_stop+0xc0/0xc0 [ 549.498691][ T2971] ? mutex_trylock+0x180/0x180 [ 549.503441][ T2971] ? __kasan_check_write+0x14/0x20 [ 549.508661][ T2971] kernfs_fop_write_iter+0x2d0/0x410 [ 549.514378][ T2971] ? cgroup_seqfile_stop+0xc0/0xc0 [ 549.519589][ T2971] vfs_write+0xc4a/0xf80 [ 549.523909][ T2971] ? slab_free_freelist_hook+0xcc/0x1a0 [ 549.529446][ T2971] ? kernel_write+0x420/0x420 [ 549.534115][ T2971] ? do_sys_openat2+0x397/0x470 [ 549.538965][ T2971] ? __kasan_check_read+0x11/0x20 [ 549.543993][ T2971] ? __fdget_pos+0x27e/0x310 [ 549.548659][ T2971] ksys_write+0x198/0x2c0 [ 549.552988][ T2971] ? __ia32_sys_read+0x90/0x90 [ 549.557757][ T2971] ? debug_smp_processor_id+0x17/0x20 [ 549.563143][ T2971] __x64_sys_write+0x7b/0x90 [ 549.567753][ T2971] do_syscall_64+0x34/0x70 [ 549.572425][ T2971] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 549.578660][ T2971] RIP: 0033:0x7f48883727a9 [ 549.583220][ T2971] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 549.603302][ T2971] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 549.611805][ T2971] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 549.620106][ T2971] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 549.628149][ T2971] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 549.636193][ T2971] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 549.644261][ T2971] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000032 [ 549.652609][ T2971] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 549.697478][ T2972] FAULT_INJECTION: forcing a failure. [ 549.697478][ T2972] name failslab, interval 1, probability 0, space 0, times 0 [ 549.710275][ T2972] CPU: 1 PID: 2972 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 549.720689][ T2972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 549.730877][ T2972] Call Trace: [ 549.734182][ T2972] dump_stack_lvl+0x1e2/0x24b [ 549.738859][ T2972] ? panic+0x7d7/0x7d7 [ 549.743338][ T2972] ? bfq_pos_tree_add_move+0x43e/0x43e [ 549.748919][ T2972] ? selinux_kernfs_init_security+0x1a8/0x760 [ 549.755114][ T2972] dump_stack+0x15/0x17 [ 549.759273][ T2972] should_fail+0x3c0/0x510 [ 549.763672][ T2972] __should_failslab+0x9f/0xe0 [ 549.768424][ T2972] should_failslab+0x9/0x20 [ 549.772909][ T2972] kmem_cache_alloc+0x3f/0x300 [ 549.777659][ T2972] ? __kernfs_new_node+0xdb/0x6e0 [ 549.782672][ T2972] __kernfs_new_node+0xdb/0x6e0 [ 549.787512][ T2972] ? is_module_text_address+0xe1/0x140 [ 549.793059][ T2972] ? kernfs_new_node+0x170/0x170 [ 549.798001][ T2972] ? ptr_to_hashval+0x60/0x60 [ 549.802677][ T2972] ? arch_stack_walk+0xf8/0x140 [ 549.807966][ T2972] ? snprintf+0xd6/0x120 [ 549.812299][ T2972] kernfs_new_node+0x97/0x170 [ 549.816984][ T2972] __kernfs_create_file+0x4a/0x270 [ 549.822179][ T2972] cgroup_addrm_files+0xab8/0xfe0 [ 549.827201][ T2972] ? ____kasan_kmalloc+0xdc/0x110 [ 549.832304][ T2972] ? __kasan_kmalloc+0x9/0x10 [ 549.836962][ T2972] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 549.842843][ T2972] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 549.848992][ T2972] ? delete_node+0x759/0x7b0 [ 549.853723][ T2972] ? __kasan_check_read+0x11/0x20 [ 549.858732][ T2972] ? delete_node+0x759/0x7b0 [ 549.863315][ T2972] ? __kasan_check_write+0x14/0x20 [ 549.868413][ T2972] ? idr_replace+0x1c4/0x230 [ 549.872988][ T2972] ? idr_get_next+0x4b0/0x4b0 [ 549.878082][ T2972] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 549.883087][ T2972] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 549.888268][ T2972] css_populate_dir+0x137/0x370 [ 549.893112][ T2972] cgroup_apply_control_enable+0x8b9/0x12f0 [ 549.899000][ T2972] cgroup_apply_control+0x8e/0x7e0 [ 549.904102][ T2972] ? css_next_child+0x160/0x160 [ 549.908938][ T2972] ? stack_trace_save+0x12d/0x1f0 [ 549.913949][ T2972] ? io_schedule+0x120/0x120 [ 549.918550][ T2972] ? kernfs_fop_write_iter+0x15e/0x410 [ 549.923996][ T2972] ? __kasan_check_write+0x14/0x20 [ 549.929089][ T2972] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 549.934378][ T2972] cgroup_subtree_control_write+0xd19/0x1310 [ 549.940378][ T2972] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 549.946345][ T2972] ? __kasan_check_write+0x14/0x20 [ 549.951525][ T2972] ? _copy_from_iter+0x3fb/0xd60 [ 549.956575][ T2972] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 549.962540][ T2972] cgroup_file_write+0x28e/0x590 [ 549.967462][ T2972] ? cgroup_seqfile_stop+0xc0/0xc0 [ 549.972578][ T2972] ? mutex_trylock+0x180/0x180 [ 549.977443][ T2972] ? __kasan_check_write+0x14/0x20 [ 549.982553][ T2972] kernfs_fop_write_iter+0x2d0/0x410 [ 549.987823][ T2972] ? cgroup_seqfile_stop+0xc0/0xc0 [ 549.992915][ T2972] vfs_write+0xc4a/0xf80 [ 549.997234][ T2972] ? slab_free_freelist_hook+0xcc/0x1a0 [ 550.002777][ T2972] ? kernel_write+0x420/0x420 [ 550.007445][ T2972] ? do_sys_openat2+0x397/0x470 [ 550.012313][ T2972] ? __kasan_check_read+0x11/0x20 [ 550.017324][ T2972] ? __fdget_pos+0x27e/0x310 [ 550.021901][ T2972] ksys_write+0x198/0x2c0 [ 550.026217][ T2972] ? __ia32_sys_read+0x90/0x90 [ 550.030962][ T2972] ? debug_smp_processor_id+0x17/0x20 [ 550.036311][ T2972] __x64_sys_write+0x7b/0x90 [ 550.040882][ T2972] do_syscall_64+0x34/0x70 [ 550.045713][ T2972] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 550.051601][ T2972] RIP: 0033:0x7f48883727a9 [ 550.056004][ T2972] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 550.076158][ T2972] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 550.084646][ T2972] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 550.092693][ T2972] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 550.101083][ T2972] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 550.109144][ T2972] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 550.117103][ T2972] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000033 [ 550.125306][ T2972] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 550.187152][ T2964] FAULT_INJECTION: forcing a failure. [ 550.187152][ T2964] name failslab, interval 1, probability 0, space 0, times 0 [ 550.199847][ T2964] CPU: 0 PID: 2964 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 550.210787][ T2964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 550.221272][ T2964] Call Trace: [ 550.224564][ T2964] dump_stack_lvl+0x1e2/0x24b [ 550.229220][ T2964] ? bfq_pos_tree_add_move+0x43e/0x43e [ 550.234806][ T2964] dump_stack+0x15/0x17 [ 550.238962][ T2964] should_fail+0x3c0/0x510 [ 550.243362][ T2964] __should_failslab+0x9f/0xe0 [ 550.248128][ T2964] should_failslab+0x9/0x20 [ 550.252618][ T2964] kmem_cache_alloc+0x3f/0x300 [ 550.257359][ T2964] ? radix_tree_node_alloc+0x194/0x3c0 [ 550.262906][ T2964] radix_tree_node_alloc+0x194/0x3c0 [ 550.268168][ T2964] ? kernfs_new_node+0x97/0x170 [ 550.273342][ T2964] ? __kernfs_create_file+0x4a/0x270 [ 550.278604][ T2964] ? cgroup_addrm_files+0xab8/0xfe0 [ 550.283781][ T2964] ? cgroup_apply_control_enable+0x8b9/0x12f0 [ 550.289833][ T2964] idr_get_free+0x2d8/0x990 [ 550.294489][ T2964] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 550.300993][ T2964] idr_alloc_cyclic+0x1ef/0x5d0 [ 550.306087][ T2964] ? idr_alloc+0x2f0/0x2f0 [ 550.310486][ T2964] ? __kasan_check_write+0x14/0x20 [ 550.315668][ T2964] ? _raw_spin_lock+0xa3/0x1b0 [ 550.320543][ T2964] ? __radix_tree_preload+0x361/0x3e0 [ 550.326003][ T2964] ? kmem_cache_alloc+0x1a4/0x300 [ 550.331022][ T2964] __kernfs_new_node+0x124/0x6e0 [ 550.335942][ T2964] ? is_module_text_address+0xe1/0x140 [ 550.341379][ T2964] ? kernfs_new_node+0x170/0x170 [ 550.346388][ T2964] ? ptr_to_hashval+0x60/0x60 [ 550.351042][ T2964] ? arch_stack_walk+0xf8/0x140 [ 550.357270][ T2964] ? snprintf+0xd6/0x120 [ 550.361584][ T2964] kernfs_new_node+0x97/0x170 [ 550.366330][ T2964] __kernfs_create_file+0x4a/0x270 [ 550.371420][ T2964] cgroup_addrm_files+0xab8/0xfe0 [ 550.376869][ T2964] ? ____kasan_kmalloc+0xdc/0x110 [ 550.382043][ T2964] ? __kasan_kmalloc+0x9/0x10 [ 550.386705][ T2964] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 550.392315][ T2964] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 550.398441][ T2964] ? delete_node+0x759/0x7b0 [ 550.403267][ T2964] ? __kasan_check_read+0x11/0x20 [ 550.408268][ T2964] ? delete_node+0x759/0x7b0 [ 550.412837][ T2964] ? __kasan_check_write+0x14/0x20 [ 550.417927][ T2964] ? idr_replace+0x1c4/0x230 [ 550.422522][ T2964] ? idr_get_next+0x4b0/0x4b0 [ 550.427198][ T2964] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 550.432231][ T2964] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 550.437620][ T2964] css_populate_dir+0x137/0x370 [ 550.442468][ T2964] cgroup_apply_control_enable+0x8b9/0x12f0 [ 550.448346][ T2964] cgroup_apply_control+0x8e/0x7e0 [ 550.453438][ T2964] ? css_next_child+0x160/0x160 [ 550.458550][ T2964] ? stack_trace_save+0x12d/0x1f0 [ 550.463553][ T2964] ? io_schedule+0x120/0x120 [ 550.468249][ T2964] ? kernfs_fop_write_iter+0x15e/0x410 [ 550.473687][ T2964] ? __kasan_check_write+0x14/0x20 [ 550.478797][ T2964] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 550.484186][ T2964] cgroup_subtree_control_write+0xd19/0x1310 [ 550.490181][ T2964] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 550.496760][ T2964] ? __kasan_check_write+0x14/0x20 [ 550.501866][ T2964] ? _copy_from_iter+0x3fb/0xd60 [ 550.506786][ T2964] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 550.512764][ T2964] cgroup_file_write+0x28e/0x590 [ 550.517774][ T2964] ? cgroup_seqfile_stop+0xc0/0xc0 [ 550.523043][ T2964] ? mutex_trylock+0x180/0x180 [ 550.527790][ T2964] ? __kasan_check_write+0x14/0x20 [ 550.533223][ T2964] kernfs_fop_write_iter+0x2d0/0x410 [ 550.538529][ T2964] ? cgroup_seqfile_stop+0xc0/0xc0 [ 550.543620][ T2964] vfs_write+0xc4a/0xf80 [ 550.549590][ T2964] ? slab_free_freelist_hook+0xcc/0x1a0 [ 550.555114][ T2964] ? kernel_write+0x420/0x420 [ 550.559771][ T2964] ? do_sys_openat2+0x397/0x470 [ 550.564605][ T2964] ? __kasan_check_read+0x11/0x20 [ 550.569624][ T2964] ? __fdget_pos+0x27e/0x310 [ 550.574411][ T2964] ksys_write+0x198/0x2c0 [ 550.578741][ T2964] ? __ia32_sys_read+0x90/0x90 [ 550.583673][ T2964] ? debug_smp_processor_id+0x17/0x20 [ 550.589026][ T2964] __x64_sys_write+0x7b/0x90 [ 550.593592][ T2964] do_syscall_64+0x34/0x70 [ 550.597989][ T2964] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 550.603864][ T2964] RIP: 0033:0x7f48883727a9 [ 550.608306][ T2964] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 550.627988][ T2964] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 550.636703][ T2964] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 550.645094][ T2964] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 550.653396][ T2964] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 550.661431][ T2964] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 550.669467][ T2964] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000031 [ 550.717329][ T2973] FAULT_INJECTION: forcing a failure. [ 550.717329][ T2973] name failslab, interval 1, probability 0, space 0, times 0 [ 550.730844][ T2973] CPU: 1 PID: 2973 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 550.741262][ T2973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 550.751422][ T2973] Call Trace: [ 550.754730][ T2973] dump_stack_lvl+0x1e2/0x24b [ 550.759402][ T2973] ? panic+0x7d7/0x7d7 [ 550.763478][ T2973] ? bfq_pos_tree_add_move+0x43e/0x43e [ 550.768933][ T2973] ? selinux_kernfs_init_security+0x1a8/0x760 [ 550.775100][ T2973] dump_stack+0x15/0x17 [ 550.779256][ T2973] should_fail+0x3c0/0x510 [ 550.783697][ T2973] __should_failslab+0x9f/0xe0 [ 550.788555][ T2973] should_failslab+0x9/0x20 [ 550.793045][ T2973] kmem_cache_alloc+0x3f/0x300 [ 550.797789][ T2973] ? __kernfs_new_node+0xdb/0x6e0 [ 550.803009][ T2973] __kernfs_new_node+0xdb/0x6e0 [ 550.807887][ T2973] ? is_module_text_address+0xe1/0x140 [ 550.813428][ T2973] ? kernfs_new_node+0x170/0x170 [ 550.818361][ T2973] ? ptr_to_hashval+0x60/0x60 [ 550.823026][ T2973] ? arch_stack_walk+0xf8/0x140 [ 550.827960][ T2973] ? snprintf+0xd6/0x120 [ 550.832219][ T2973] kernfs_new_node+0x97/0x170 [ 550.836882][ T2973] __kernfs_create_file+0x4a/0x270 [ 550.841975][ T2973] cgroup_addrm_files+0xab8/0xfe0 [ 550.846986][ T2973] ? ____kasan_kmalloc+0xdc/0x110 [ 550.852078][ T2973] ? __kasan_kmalloc+0x9/0x10 [ 550.856750][ T2973] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 550.862291][ T2973] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 550.868439][ T2973] ? delete_node+0x759/0x7b0 [ 550.873465][ T2973] ? __kasan_check_read+0x11/0x20 [ 550.878562][ T2973] ? delete_node+0x759/0x7b0 [ 550.883225][ T2973] ? __kasan_check_write+0x14/0x20 [ 550.888412][ T2973] ? idr_replace+0x1c4/0x230 [ 550.892990][ T2973] ? idr_get_next+0x4b0/0x4b0 [ 550.897728][ T2973] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 550.902731][ T2973] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 550.907910][ T2973] css_populate_dir+0x137/0x370 [ 550.912755][ T2973] cgroup_apply_control_enable+0x8b9/0x12f0 [ 550.918635][ T2973] cgroup_apply_control+0x8e/0x7e0 [ 550.923839][ T2973] ? css_next_child+0x160/0x160 [ 550.928681][ T2973] ? stack_trace_save+0x12d/0x1f0 [ 550.933695][ T2973] ? io_schedule+0x120/0x120 [ 550.938266][ T2973] ? kernfs_fop_write_iter+0x15e/0x410 [ 550.943717][ T2973] ? __kasan_check_write+0x14/0x20 [ 550.948825][ T2973] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 550.954111][ T2973] cgroup_subtree_control_write+0xd19/0x1310 [ 550.960177][ T2973] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 550.966224][ T2973] ? __kasan_check_write+0x14/0x20 [ 550.971425][ T2973] ? _copy_from_iter+0x3fb/0xd60 [ 550.976364][ T2973] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 550.982340][ T2973] cgroup_file_write+0x28e/0x590 [ 550.987258][ T2973] ? cgroup_seqfile_stop+0xc0/0xc0 [ 550.992362][ T2973] ? mutex_trylock+0x180/0x180 [ 550.997158][ T2973] ? __kasan_check_write+0x14/0x20 [ 551.002249][ T2973] kernfs_fop_write_iter+0x2d0/0x410 [ 551.007604][ T2973] ? cgroup_seqfile_stop+0xc0/0xc0 [ 551.012699][ T2973] vfs_write+0xc4a/0xf80 [ 551.016942][ T2973] ? slab_free_freelist_hook+0xcc/0x1a0 [ 551.022475][ T2973] ? kernel_write+0x420/0x420 [ 551.027176][ T2973] ? do_sys_openat2+0x397/0x470 [ 551.032023][ T2973] ? __kasan_check_read+0x11/0x20 [ 551.037057][ T2973] ? __fdget_pos+0x27e/0x310 [ 551.041827][ T2973] ksys_write+0x198/0x2c0 [ 551.046165][ T2973] ? __ia32_sys_read+0x90/0x90 [ 551.051021][ T2973] ? debug_smp_processor_id+0x17/0x20 [ 551.056402][ T2973] __x64_sys_write+0x7b/0x90 [ 551.061204][ T2973] do_syscall_64+0x34/0x70 [ 551.065617][ T2973] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 551.071495][ T2973] RIP: 0033:0x7f48883727a9 [ 551.075898][ T2973] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 551.095581][ T2973] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 551.103991][ T2973] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 551.112034][ T2973] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 551.119990][ T2973] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 551.127950][ T2973] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 551.136051][ T2973] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003a [ 551.144449][ T2973] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 551.197141][ T2975] FAULT_INJECTION: forcing a failure. [ 551.197141][ T2975] name failslab, interval 1, probability 0, space 0, times 0 [ 551.209922][ T2975] CPU: 0 PID: 2975 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 551.220726][ T2975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 551.230771][ T2975] Call Trace: [ 551.234060][ T2975] dump_stack_lvl+0x1e2/0x24b [ 551.238723][ T2975] ? panic+0x7d7/0x7d7 [ 551.242976][ T2975] ? bfq_pos_tree_add_move+0x43e/0x43e [ 551.248507][ T2975] ? selinux_kernfs_init_security+0x1a8/0x760 [ 551.254757][ T2975] dump_stack+0x15/0x17 [ 551.258907][ T2975] should_fail+0x3c0/0x510 [ 551.263658][ T2975] __should_failslab+0x9f/0xe0 [ 551.268807][ T2975] should_failslab+0x9/0x20 [ 551.273334][ T2975] kmem_cache_alloc+0x3f/0x300 [ 551.278183][ T2975] ? __kernfs_new_node+0xdb/0x6e0 [ 551.283292][ T2975] __kernfs_new_node+0xdb/0x6e0 [ 551.288220][ T2975] ? is_module_text_address+0xe1/0x140 [ 551.293747][ T2975] ? kernfs_new_node+0x170/0x170 [ 551.298761][ T2975] ? ptr_to_hashval+0x60/0x60 [ 551.303590][ T2975] ? arch_stack_walk+0xf8/0x140 [ 551.308419][ T2975] ? snprintf+0xd6/0x120 [ 551.312643][ T2975] kernfs_new_node+0x97/0x170 [ 551.317326][ T2975] __kernfs_create_file+0x4a/0x270 [ 551.322547][ T2975] cgroup_addrm_files+0xab8/0xfe0 [ 551.327596][ T2975] ? ____kasan_kmalloc+0xdc/0x110 [ 551.332684][ T2975] ? __kasan_kmalloc+0x9/0x10 [ 551.337687][ T2975] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 551.343380][ T2975] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 551.349775][ T2975] ? delete_node+0x759/0x7b0 [ 551.354351][ T2975] ? __kasan_check_read+0x11/0x20 [ 551.359446][ T2975] ? delete_node+0x759/0x7b0 [ 551.364106][ T2975] ? __kasan_check_write+0x14/0x20 [ 551.369452][ T2975] ? idr_replace+0x1c4/0x230 [ 551.374651][ T2975] ? idr_get_next+0x4b0/0x4b0 [ 551.379307][ T2975] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 551.384434][ T2975] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 551.389624][ T2975] css_populate_dir+0x137/0x370 [ 551.394552][ T2975] cgroup_apply_control_enable+0x8b9/0x12f0 [ 551.400513][ T2975] cgroup_apply_control+0x8e/0x7e0 [ 551.405615][ T2975] ? css_next_child+0x160/0x160 [ 551.410536][ T2975] ? stack_trace_save+0x12d/0x1f0 [ 551.415539][ T2975] ? io_schedule+0x120/0x120 [ 551.420119][ T2975] ? kernfs_fop_write_iter+0x15e/0x410 [ 551.425553][ T2975] ? __kasan_check_write+0x14/0x20 [ 551.430724][ T2975] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 551.436158][ T2975] cgroup_subtree_control_write+0xd19/0x1310 [ 551.442415][ T2975] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 551.448369][ T2975] ? __kasan_check_write+0x14/0x20 [ 551.453562][ T2975] ? _copy_from_iter+0x3fb/0xd60 [ 551.458763][ T2975] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 551.464723][ T2975] cgroup_file_write+0x28e/0x590 [ 551.469645][ T2975] ? cgroup_seqfile_stop+0xc0/0xc0 [ 551.474737][ T2975] ? mutex_trylock+0x180/0x180 [ 551.479478][ T2975] ? __kasan_check_write+0x14/0x20 [ 551.484563][ T2975] kernfs_fop_write_iter+0x2d0/0x410 [ 551.489827][ T2975] ? cgroup_seqfile_stop+0xc0/0xc0 [ 551.494913][ T2975] vfs_write+0xc4a/0xf80 [ 551.499128][ T2975] ? slab_free_freelist_hook+0xcc/0x1a0 [ 551.504657][ T2975] ? kernel_write+0x420/0x420 [ 551.509466][ T2975] ? do_sys_openat2+0x397/0x470 [ 551.514336][ T2975] ? __kasan_check_read+0x11/0x20 [ 551.519373][ T2975] ? __fdget_pos+0x27e/0x310 [ 551.524042][ T2975] ksys_write+0x198/0x2c0 [ 551.528702][ T2975] ? __ia32_sys_read+0x90/0x90 [ 551.533457][ T2975] ? debug_smp_processor_id+0x17/0x20 [ 551.538979][ T2975] __x64_sys_write+0x7b/0x90 [ 551.543645][ T2975] do_syscall_64+0x34/0x70 [ 551.548054][ T2975] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 551.554227][ T2975] RIP: 0033:0x7f48883727a9 [ 551.558619][ T2975] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 551.578211][ T2975] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 551.586599][ T2975] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 551.594564][ T2975] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 551.602636][ T2975] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 551.610611][ T2975] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 551.618562][ T2975] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000034 [ 551.626946][ T2975] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 551.657212][ T2976] FAULT_INJECTION: forcing a failure. [ 551.657212][ T2976] name failslab, interval 1, probability 0, space 0, times 0 [ 551.670067][ T2976] CPU: 0 PID: 2976 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 551.680587][ T2976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 551.690736][ T2976] Call Trace: [ 551.694047][ T2976] dump_stack_lvl+0x1e2/0x24b [ 551.698751][ T2976] ? bfq_pos_tree_add_move+0x43e/0x43e [ 551.704228][ T2976] ? selinux_kernfs_init_security+0x1a8/0x760 [ 551.710312][ T2976] dump_stack+0x15/0x17 [ 551.714488][ T2976] should_fail+0x3c0/0x510 [ 551.719826][ T2976] ? __kernfs_new_node+0x99/0x6e0 [ 551.725023][ T2976] __should_failslab+0x9f/0xe0 [ 551.729910][ T2976] should_failslab+0x9/0x20 [ 551.734403][ T2976] __kmalloc_track_caller+0x5f/0x350 [ 551.739715][ T2976] kstrdup_const+0x55/0x90 [ 551.744147][ T2976] __kernfs_new_node+0x99/0x6e0 [ 551.749099][ T2976] ? is_module_text_address+0xe1/0x140 [ 551.754648][ T2976] ? kernfs_new_node+0x170/0x170 [ 551.759585][ T2976] ? ptr_to_hashval+0x60/0x60 [ 551.764289][ T2976] ? mutex_lock+0xb2/0x1e0 [ 551.768709][ T2976] ? snprintf+0xd6/0x120 [ 551.772935][ T2976] ? mutex_unlock+0x29/0xf0 [ 551.777538][ T2976] kernfs_new_node+0x97/0x170 [ 551.782215][ T2976] __kernfs_create_file+0x4a/0x270 [ 551.787519][ T2976] cgroup_addrm_files+0xab8/0xfe0 [ 551.792699][ T2976] ? ____kasan_kmalloc+0xdc/0x110 [ 551.797705][ T2976] ? __kasan_kmalloc+0x9/0x10 [ 551.802368][ T2976] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 551.807897][ T2976] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 551.814032][ T2976] ? delete_node+0x759/0x7b0 [ 551.818692][ T2976] ? __kasan_check_read+0x11/0x20 [ 551.823966][ T2976] ? idr_replace+0x1c4/0x230 [ 551.828643][ T2976] ? idr_get_next+0x4b0/0x4b0 [ 551.833418][ T2976] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 551.838554][ T2976] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 551.843766][ T2976] css_populate_dir+0x137/0x370 [ 551.848621][ T2976] cgroup_apply_control_enable+0x8b9/0x12f0 [ 551.854778][ T2976] cgroup_apply_control+0x8e/0x7e0 [ 551.859907][ T2976] ? css_next_child+0x160/0x160 [ 551.864760][ T2976] ? stack_trace_save+0x12d/0x1f0 [ 551.869769][ T2976] ? io_schedule+0x120/0x120 [ 551.874341][ T2976] ? kernfs_fop_write_iter+0x15e/0x410 [ 551.879882][ T2976] ? __kasan_check_write+0x14/0x20 [ 551.884983][ T2976] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 551.890250][ T2976] cgroup_subtree_control_write+0xd19/0x1310 [ 551.896212][ T2976] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 551.902170][ T2976] ? __kasan_check_write+0x14/0x20 [ 551.907256][ T2976] ? _copy_from_iter+0x3fb/0xd60 [ 551.912305][ T2976] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 551.918495][ T2976] cgroup_file_write+0x28e/0x590 [ 551.923419][ T2976] ? cgroup_seqfile_stop+0xc0/0xc0 [ 551.928509][ T2976] ? mutex_trylock+0x180/0x180 [ 551.933252][ T2976] ? __kasan_check_write+0x14/0x20 [ 551.938351][ T2976] kernfs_fop_write_iter+0x2d0/0x410 [ 551.943707][ T2976] ? cgroup_seqfile_stop+0xc0/0xc0 [ 551.948809][ T2976] vfs_write+0xc4a/0xf80 [ 551.953116][ T2976] ? slab_free_freelist_hook+0xcc/0x1a0 [ 551.958657][ T2976] ? kernel_write+0x420/0x420 [ 551.963325][ T2976] ? do_sys_openat2+0x397/0x470 [ 551.968159][ T2976] ? __kasan_check_read+0x11/0x20 [ 551.973161][ T2976] ? __fdget_pos+0x27e/0x310 [ 551.977729][ T2976] ksys_write+0x198/0x2c0 [ 551.982051][ T2976] ? __ia32_sys_read+0x90/0x90 [ 551.986808][ T2976] ? debug_smp_processor_id+0x17/0x20 [ 551.992169][ T2976] __x64_sys_write+0x7b/0x90 [ 551.996749][ T2976] do_syscall_64+0x34/0x70 [ 552.001236][ T2976] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 552.007104][ T2976] RIP: 0033:0x7f48883727a9 [ 552.011516][ T2976] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 552.031488][ T2976] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 552.040384][ T2976] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 552.049313][ T2976] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 552.057338][ T2976] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 552.065303][ T2976] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 552.073805][ T2976] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000032 [ 552.082113][ T2976] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 552.127454][ T2974] FAULT_INJECTION: forcing a failure. [ 552.127454][ T2974] name failslab, interval 1, probability 0, space 0, times 0 [ 552.140597][ T2974] CPU: 1 PID: 2974 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 552.151254][ T2974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 552.161909][ T2974] Call Trace: [ 552.165255][ T2974] dump_stack_lvl+0x1e2/0x24b [ 552.169930][ T2974] ? bfq_pos_tree_add_move+0x43e/0x43e [ 552.175488][ T2974] ? selinux_kernfs_init_security+0x1a8/0x760 [ 552.181558][ T2974] dump_stack+0x15/0x17 [ 552.185698][ T2974] should_fail+0x3c0/0x510 [ 552.190105][ T2974] ? __kernfs_new_node+0x99/0x6e0 [ 552.195124][ T2974] __should_failslab+0x9f/0xe0 [ 552.199891][ T2974] should_failslab+0x9/0x20 [ 552.204390][ T2974] __kmalloc_track_caller+0x5f/0x350 [ 552.209752][ T2974] kstrdup_const+0x55/0x90 [ 552.214559][ T2974] __kernfs_new_node+0x99/0x6e0 [ 552.219552][ T2974] ? is_module_text_address+0xe1/0x140 [ 552.225059][ T2974] ? kernfs_new_node+0x170/0x170 [ 552.230092][ T2974] ? ptr_to_hashval+0x60/0x60 [ 552.234777][ T2974] ? mutex_lock+0xb2/0x1e0 [ 552.239288][ T2974] ? snprintf+0xd6/0x120 [ 552.243516][ T2974] ? mutex_unlock+0x29/0xf0 [ 552.248001][ T2974] kernfs_new_node+0x97/0x170 [ 552.252680][ T2974] __kernfs_create_file+0x4a/0x270 [ 552.257811][ T2974] cgroup_addrm_files+0xab8/0xfe0 [ 552.262848][ T2974] ? ____kasan_kmalloc+0xdc/0x110 [ 552.267987][ T2974] ? __kasan_kmalloc+0x9/0x10 [ 552.272756][ T2974] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 552.278485][ T2974] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 552.285009][ T2974] ? delete_node+0x759/0x7b0 [ 552.290084][ T2974] ? __kasan_check_read+0x11/0x20 [ 552.295274][ T2974] ? idr_replace+0x1c4/0x230 [ 552.299854][ T2974] ? idr_get_next+0x4b0/0x4b0 [ 552.304899][ T2974] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 552.310048][ T2974] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 552.315440][ T2974] css_populate_dir+0x137/0x370 [ 552.320311][ T2974] cgroup_apply_control_enable+0x8b9/0x12f0 [ 552.326311][ T2974] cgroup_apply_control+0x8e/0x7e0 [ 552.331409][ T2974] ? css_next_child+0x160/0x160 [ 552.336672][ T2974] ? stack_trace_save+0x12d/0x1f0 [ 552.341712][ T2974] ? io_schedule+0x120/0x120 [ 552.346309][ T2974] ? kernfs_fop_write_iter+0x15e/0x410 [ 552.351757][ T2974] ? __kasan_check_write+0x14/0x20 [ 552.356851][ T2974] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 552.362124][ T2974] cgroup_subtree_control_write+0xd19/0x1310 [ 552.368092][ T2974] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 552.374050][ T2974] ? __kasan_check_write+0x14/0x20 [ 552.379139][ T2974] ? _copy_from_iter+0x3fb/0xd60 [ 552.384063][ T2974] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 552.390016][ T2974] cgroup_file_write+0x28e/0x590 [ 552.394938][ T2974] ? cgroup_seqfile_stop+0xc0/0xc0 [ 552.400037][ T2974] ? mutex_trylock+0x180/0x180 [ 552.404802][ T2974] ? __kasan_check_write+0x14/0x20 [ 552.409919][ T2974] kernfs_fop_write_iter+0x2d0/0x410 [ 552.415279][ T2974] ? cgroup_seqfile_stop+0xc0/0xc0 [ 552.420402][ T2974] vfs_write+0xc4a/0xf80 [ 552.424671][ T2974] ? slab_free_freelist_hook+0xcc/0x1a0 [ 552.430458][ T2974] ? kernel_write+0x420/0x420 [ 552.435233][ T2974] ? do_sys_openat2+0x397/0x470 [ 552.440196][ T2974] ? __kasan_check_read+0x11/0x20 [ 552.445312][ T2974] ? __fdget_pos+0x27e/0x310 [ 552.449913][ T2974] ksys_write+0x198/0x2c0 [ 552.454228][ T2974] ? __ia32_sys_read+0x90/0x90 [ 552.459075][ T2974] ? debug_smp_processor_id+0x17/0x20 [ 552.464428][ T2974] __x64_sys_write+0x7b/0x90 [ 552.469380][ T2974] do_syscall_64+0x34/0x70 [ 552.473823][ T2974] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 552.479719][ T2974] RIP: 0033:0x7f48883727a9 [ 552.484155][ T2974] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 552.504346][ T2974] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 552.512748][ T2974] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 552.520701][ T2974] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 552.528663][ T2974] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 552.537083][ T2974] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 552.545501][ T2974] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000033 [ 552.553665][ T2974] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 552.607113][ T2967] FAULT_INJECTION: forcing a failure. [ 552.607113][ T2967] name failslab, interval 1, probability 0, space 0, times 0 [ 552.619988][ T2967] CPU: 0 PID: 2967 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 552.630377][ T2967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 552.640417][ T2967] Call Trace: [ 552.643719][ T2967] dump_stack_lvl+0x1e2/0x24b [ 552.648477][ T2967] ? bfq_pos_tree_add_move+0x43e/0x43e [ 552.654030][ T2967] ? selinux_kernfs_init_security+0x1a8/0x760 [ 552.660194][ T2967] dump_stack+0x15/0x17 [ 552.664351][ T2967] should_fail+0x3c0/0x510 [ 552.668786][ T2967] ? __kernfs_new_node+0x99/0x6e0 [ 552.673796][ T2967] __should_failslab+0x9f/0xe0 [ 552.678544][ T2967] should_failslab+0x9/0x20 [ 552.683038][ T2967] __kmalloc_track_caller+0x5f/0x350 [ 552.688309][ T2967] kstrdup_const+0x55/0x90 [ 552.693060][ T2967] __kernfs_new_node+0x99/0x6e0 [ 552.698442][ T2967] ? is_module_text_address+0xe1/0x140 [ 552.704144][ T2967] ? kernfs_new_node+0x170/0x170 [ 552.709248][ T2967] ? ptr_to_hashval+0x60/0x60 [ 552.713908][ T2967] ? mutex_lock+0xb2/0x1e0 [ 552.718401][ T2967] ? snprintf+0xd6/0x120 [ 552.722636][ T2967] ? mutex_unlock+0x29/0xf0 [ 552.727244][ T2967] kernfs_new_node+0x97/0x170 [ 552.731902][ T2967] __kernfs_create_file+0x4a/0x270 [ 552.737252][ T2967] cgroup_addrm_files+0xab8/0xfe0 [ 552.742259][ T2967] ? ____kasan_kmalloc+0xdc/0x110 [ 552.748217][ T2967] ? __kasan_kmalloc+0x9/0x10 [ 552.753136][ T2967] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 552.758707][ T2967] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 552.765031][ T2967] ? delete_node+0x759/0x7b0 [ 552.769603][ T2967] ? __kasan_check_read+0x11/0x20 [ 552.774696][ T2967] ? idr_replace+0x1c4/0x230 [ 552.779354][ T2967] ? idr_get_next+0x4b0/0x4b0 [ 552.784009][ T2967] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 552.789013][ T2967] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 552.794288][ T2967] css_populate_dir+0x137/0x370 [ 552.799125][ T2967] cgroup_apply_control_enable+0x8b9/0x12f0 [ 552.805106][ T2967] cgroup_apply_control+0x8e/0x7e0 [ 552.810298][ T2967] ? css_next_child+0x160/0x160 [ 552.815229][ T2967] ? stack_trace_save+0x12d/0x1f0 [ 552.820232][ T2967] ? io_schedule+0x120/0x120 [ 552.824811][ T2967] ? kernfs_fop_write_iter+0x15e/0x410 [ 552.830420][ T2967] ? __kasan_check_write+0x14/0x20 [ 552.835598][ T2967] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 552.840884][ T2967] cgroup_subtree_control_write+0xd19/0x1310 [ 552.846933][ T2967] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 552.852907][ T2967] ? __kasan_check_write+0x14/0x20 [ 552.857999][ T2967] ? _copy_from_iter+0x3fb/0xd60 [ 552.862920][ T2967] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 552.868892][ T2967] cgroup_file_write+0x28e/0x590 [ 552.873809][ T2967] ? cgroup_seqfile_stop+0xc0/0xc0 [ 552.878896][ T2967] ? mutex_trylock+0x180/0x180 [ 552.883728][ T2967] ? __kasan_check_write+0x14/0x20 [ 552.888845][ T2967] kernfs_fop_write_iter+0x2d0/0x410 [ 552.894125][ T2967] ? cgroup_seqfile_stop+0xc0/0xc0 [ 552.899390][ T2967] vfs_write+0xc4a/0xf80 [ 552.903606][ T2967] ? slab_free_freelist_hook+0xcc/0x1a0 [ 552.909215][ T2967] ? kernel_write+0x420/0x420 [ 552.913868][ T2967] ? do_sys_openat2+0x397/0x470 [ 552.918697][ T2967] ? __kasan_check_read+0x11/0x20 [ 552.924498][ T2967] ? __fdget_pos+0x27e/0x310 [ 552.929073][ T2967] ksys_write+0x198/0x2c0 [ 552.933398][ T2967] ? __ia32_sys_read+0x90/0x90 [ 552.938151][ T2967] ? debug_smp_processor_id+0x17/0x20 [ 552.943534][ T2967] __x64_sys_write+0x7b/0x90 [ 552.948111][ T2967] do_syscall_64+0x34/0x70 [ 552.952558][ T2967] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 552.958445][ T2967] RIP: 0033:0x7f48883727a9 [ 552.963077][ T2967] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 552.982687][ T2967] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 552.991133][ T2967] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 552.999130][ T2967] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 553.007126][ T2967] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 553.015093][ T2967] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 553.023330][ T2967] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000036 [ 553.031587][ T2967] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 553.077075][ T2979] FAULT_INJECTION: forcing a failure. [ 553.077075][ T2979] name failslab, interval 1, probability 0, space 0, times 0 [ 553.089817][ T2979] CPU: 1 PID: 2979 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 553.100715][ T2979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 553.110768][ T2979] Call Trace: [ 553.114044][ T2979] dump_stack_lvl+0x1e2/0x24b [ 553.118790][ T2979] ? bfq_pos_tree_add_move+0x43e/0x43e [ 553.124228][ T2979] ? selinux_kernfs_init_security+0x1a8/0x760 [ 553.130795][ T2979] dump_stack+0x15/0x17 [ 553.134956][ T2979] should_fail+0x3c0/0x510 [ 553.139353][ T2979] ? __kernfs_new_node+0x99/0x6e0 [ 553.144546][ T2979] __should_failslab+0x9f/0xe0 [ 553.149387][ T2979] should_failslab+0x9/0x20 [ 553.154124][ T2979] __kmalloc_track_caller+0x5f/0x350 [ 553.159639][ T2979] kstrdup_const+0x55/0x90 [ 553.164046][ T2979] __kernfs_new_node+0x99/0x6e0 [ 553.168877][ T2979] ? is_module_text_address+0xe1/0x140 [ 553.174330][ T2979] ? kernfs_new_node+0x170/0x170 [ 553.179263][ T2979] ? ptr_to_hashval+0x60/0x60 [ 553.183915][ T2979] ? mutex_lock+0xb2/0x1e0 [ 553.188305][ T2979] ? snprintf+0xd6/0x120 [ 553.192537][ T2979] ? mutex_unlock+0x29/0xf0 [ 553.197016][ T2979] kernfs_new_node+0x97/0x170 [ 553.201686][ T2979] __kernfs_create_file+0x4a/0x270 [ 553.206883][ T2979] cgroup_addrm_files+0xab8/0xfe0 [ 553.211917][ T2979] ? ____kasan_kmalloc+0xdc/0x110 [ 553.216932][ T2979] ? __kasan_kmalloc+0x9/0x10 [ 553.221686][ T2979] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 553.227227][ T2979] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 553.233479][ T2979] ? delete_node+0x759/0x7b0 [ 553.238067][ T2979] ? __kasan_check_read+0x11/0x20 [ 553.243121][ T2979] ? idr_replace+0x1c4/0x230 [ 553.247701][ T2979] ? idr_get_next+0x4b0/0x4b0 [ 553.252365][ T2979] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 553.257799][ T2979] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 553.263220][ T2979] css_populate_dir+0x137/0x370 [ 553.268064][ T2979] cgroup_apply_control_enable+0x8b9/0x12f0 [ 553.273946][ T2979] cgroup_apply_control+0x8e/0x7e0 [ 553.279041][ T2979] ? css_next_child+0x160/0x160 [ 553.283869][ T2979] ? stack_trace_save+0x12d/0x1f0 [ 553.288871][ T2979] ? io_schedule+0x120/0x120 [ 553.293455][ T2979] ? kernfs_fop_write_iter+0x15e/0x410 [ 553.298998][ T2979] ? __kasan_check_write+0x14/0x20 [ 553.304087][ T2979] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 553.309363][ T2979] cgroup_subtree_control_write+0xd19/0x1310 [ 553.315333][ T2979] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 553.321489][ T2979] ? __kasan_check_write+0x14/0x20 [ 553.326591][ T2979] ? _copy_from_iter+0x3fb/0xd60 [ 553.331659][ T2979] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 553.337652][ T2979] cgroup_file_write+0x28e/0x590 [ 553.342582][ T2979] ? cgroup_seqfile_stop+0xc0/0xc0 [ 553.347862][ T2979] ? mutex_trylock+0x180/0x180 [ 553.352633][ T2979] ? __kasan_check_write+0x14/0x20 [ 553.357850][ T2979] kernfs_fop_write_iter+0x2d0/0x410 [ 553.363121][ T2979] ? cgroup_seqfile_stop+0xc0/0xc0 [ 553.368240][ T2979] vfs_write+0xc4a/0xf80 [ 553.372635][ T2979] ? slab_free_freelist_hook+0xcc/0x1a0 [ 553.378173][ T2979] ? kernel_write+0x420/0x420 [ 553.382897][ T2979] ? do_sys_openat2+0x397/0x470 [ 553.387772][ T2979] ? __kasan_check_read+0x11/0x20 [ 553.392801][ T2979] ? __fdget_pos+0x27e/0x310 [ 553.397379][ T2979] ksys_write+0x198/0x2c0 [ 553.401779][ T2979] ? __ia32_sys_read+0x90/0x90 [ 553.406524][ T2979] ? debug_smp_processor_id+0x17/0x20 [ 553.411889][ T2979] __x64_sys_write+0x7b/0x90 [ 553.416489][ T2979] do_syscall_64+0x34/0x70 [ 553.421244][ T2979] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 553.427291][ T2979] RIP: 0033:0x7f48883727a9 [ 553.431699][ T2979] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 553.451309][ T2979] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 553.459800][ T2979] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 553.467798][ T2979] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 553.475753][ T2979] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 553.483885][ T2979] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 553.491985][ T2979] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000033 [ 553.500527][ T2979] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 553.567059][ T2977] FAULT_INJECTION: forcing a failure. [ 553.567059][ T2977] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 553.580457][ T2977] CPU: 0 PID: 2977 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 553.590865][ T2977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 553.601097][ T2977] Call Trace: [ 553.604389][ T2977] dump_stack_lvl+0x1e2/0x24b [ 553.609062][ T2977] ? bfq_pos_tree_add_move+0x43e/0x43e [ 553.614586][ T2977] ? stack_trace_save+0x12d/0x1f0 [ 553.619596][ T2977] dump_stack+0x15/0x17 [ 553.623736][ T2977] should_fail+0x3c0/0x510 [ 553.628149][ T2977] should_fail_alloc_page+0x50/0x60 [ 553.633624][ T2977] __alloc_pages_nodemask+0x1c0/0x890 [ 553.639116][ T2977] ? __kasan_check_write+0x14/0x20 [ 553.644217][ T2977] ? delete_node+0x759/0x7b0 [ 553.648896][ T2977] ? mutex_trylock+0x180/0x180 [ 553.653661][ T2977] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 553.659201][ T2977] ? kernfs_xattr_get+0x80/0x90 [ 553.664233][ T2977] ? selinux_kernfs_init_security+0x1a8/0x760 [ 553.670383][ T2977] allocate_slab+0x78/0x540 [ 553.675141][ T2977] ___slab_alloc+0x131/0x2e0 [ 553.679713][ T2977] ? __kernfs_new_node+0xdb/0x6e0 [ 553.684737][ T2977] __slab_alloc+0x63/0xa0 [ 553.689148][ T2977] ? __kernfs_new_node+0xdb/0x6e0 [ 553.694199][ T2977] kmem_cache_alloc+0x1ef/0x300 [ 553.699213][ T2977] ? __kernfs_new_node+0xdb/0x6e0 [ 553.704253][ T2977] __kernfs_new_node+0xdb/0x6e0 [ 553.709081][ T2977] ? is_module_text_address+0xe1/0x140 [ 553.714539][ T2977] ? kernfs_new_node+0x170/0x170 [ 553.719712][ T2977] ? ptr_to_hashval+0x60/0x60 [ 553.724447][ T2977] ? arch_stack_walk+0xf8/0x140 [ 553.729376][ T2977] ? snprintf+0xd6/0x120 [ 553.733768][ T2977] kernfs_new_node+0x97/0x170 [ 553.738509][ T2977] __kernfs_create_file+0x4a/0x270 [ 553.743599][ T2977] cgroup_addrm_files+0xab8/0xfe0 [ 553.748603][ T2977] ? ____kasan_kmalloc+0xdc/0x110 [ 553.753604][ T2977] ? __kasan_kmalloc+0x9/0x10 [ 553.758260][ T2977] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 553.763869][ T2977] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 553.770127][ T2977] ? delete_node+0x759/0x7b0 [ 553.774706][ T2977] ? __kasan_check_read+0x11/0x20 [ 553.779973][ T2977] ? delete_node+0x759/0x7b0 [ 553.784554][ T2977] ? __kasan_check_write+0x14/0x20 [ 553.789674][ T2977] ? idr_replace+0x1c4/0x230 [ 553.794285][ T2977] ? idr_get_next+0x4b0/0x4b0 [ 553.798941][ T2977] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 553.804083][ T2977] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 553.809270][ T2977] css_populate_dir+0x137/0x370 [ 553.814099][ T2977] cgroup_apply_control_enable+0x8b9/0x12f0 [ 553.819976][ T2977] cgroup_apply_control+0x8e/0x7e0 [ 553.825072][ T2977] ? css_next_child+0x160/0x160 [ 553.829988][ T2977] ? stack_trace_save+0x12d/0x1f0 [ 553.834992][ T2977] ? io_schedule+0x120/0x120 [ 553.839576][ T2977] ? kernfs_fop_write_iter+0x15e/0x410 [ 553.845056][ T2977] ? __kasan_check_write+0x14/0x20 [ 553.850158][ T2977] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 553.855436][ T2977] cgroup_subtree_control_write+0xd19/0x1310 [ 553.861526][ T2977] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 553.867492][ T2977] ? __kasan_check_write+0x14/0x20 [ 553.872686][ T2977] ? _copy_from_iter+0x3fb/0xd60 [ 553.877610][ T2977] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 553.883659][ T2977] cgroup_file_write+0x28e/0x590 [ 553.888584][ T2977] ? cgroup_seqfile_stop+0xc0/0xc0 [ 553.893695][ T2977] ? mutex_trylock+0x180/0x180 [ 553.898446][ T2977] ? __kasan_check_write+0x14/0x20 [ 553.903557][ T2977] kernfs_fop_write_iter+0x2d0/0x410 [ 553.908873][ T2977] ? cgroup_seqfile_stop+0xc0/0xc0 [ 553.913969][ T2977] vfs_write+0xc4a/0xf80 [ 553.918198][ T2977] ? slab_free_freelist_hook+0xcc/0x1a0 [ 553.923901][ T2977] ? kernel_write+0x420/0x420 [ 553.928583][ T2977] ? do_sys_openat2+0x397/0x470 [ 553.933430][ T2977] ? __kasan_check_read+0x11/0x20 [ 553.938444][ T2977] ? __fdget_pos+0x27e/0x310 [ 553.943105][ T2977] ksys_write+0x198/0x2c0 [ 553.947413][ T2977] ? __ia32_sys_read+0x90/0x90 [ 553.952152][ T2977] ? debug_smp_processor_id+0x17/0x20 [ 553.957496][ T2977] __x64_sys_write+0x7b/0x90 [ 553.962063][ T2977] do_syscall_64+0x34/0x70 [ 553.966458][ T2977] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 553.972518][ T2977] RIP: 0033:0x7f48883727a9 [ 553.976920][ T2977] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 553.996884][ T2977] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 554.005376][ T2977] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 554.013334][ T2977] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 554.021377][ T2977] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 554.029432][ T2977] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 554.037676][ T2977] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 000000000000003b [ 554.087136][ T2966] FAULT_INJECTION: forcing a failure. [ 554.087136][ T2966] name failslab, interval 1, probability 0, space 0, times 0 [ 554.100088][ T2966] CPU: 1 PID: 2966 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 554.110476][ T2966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 554.120524][ T2966] Call Trace: [ 554.123825][ T2966] dump_stack_lvl+0x1e2/0x24b [ 554.128493][ T2966] ? bfq_pos_tree_add_move+0x43e/0x43e [ 554.133936][ T2966] ? selinux_kernfs_init_security+0x1a8/0x760 [ 554.140016][ T2966] dump_stack+0x15/0x17 [ 554.144175][ T2966] should_fail+0x3c0/0x510 [ 554.148659][ T2966] ? __kernfs_new_node+0x99/0x6e0 [ 554.153660][ T2966] __should_failslab+0x9f/0xe0 [ 554.158403][ T2966] should_failslab+0x9/0x20 [ 554.162908][ T2966] __kmalloc_track_caller+0x5f/0x350 [ 554.168191][ T2966] kstrdup_const+0x55/0x90 [ 554.172585][ T2966] __kernfs_new_node+0x99/0x6e0 [ 554.177415][ T2966] ? is_module_text_address+0xe1/0x140 [ 554.182852][ T2966] ? kernfs_new_node+0x170/0x170 [ 554.187767][ T2966] ? ptr_to_hashval+0x60/0x60 [ 554.192425][ T2966] ? mutex_lock+0xb2/0x1e0 [ 554.196844][ T2966] ? snprintf+0xd6/0x120 [ 554.201082][ T2966] ? mutex_unlock+0x29/0xf0 [ 554.205767][ T2966] kernfs_new_node+0x97/0x170 [ 554.210527][ T2966] __kernfs_create_file+0x4a/0x270 [ 554.215629][ T2966] cgroup_addrm_files+0xab8/0xfe0 [ 554.220732][ T2966] ? ____kasan_kmalloc+0xdc/0x110 [ 554.225733][ T2966] ? __kasan_kmalloc+0x9/0x10 [ 554.230385][ T2966] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 554.236173][ T2966] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 554.242326][ T2966] ? delete_node+0x759/0x7b0 [ 554.246894][ T2966] ? __kasan_check_read+0x11/0x20 [ 554.251907][ T2966] ? idr_replace+0x1c4/0x230 [ 554.256485][ T2966] ? idr_get_next+0x4b0/0x4b0 [ 554.261240][ T2966] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 554.266247][ T2966] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 554.271432][ T2966] css_populate_dir+0x137/0x370 [ 554.276445][ T2966] cgroup_apply_control_enable+0x8b9/0x12f0 [ 554.282328][ T2966] cgroup_apply_control+0x8e/0x7e0 [ 554.287450][ T2966] ? css_next_child+0x160/0x160 [ 554.292299][ T2966] ? io_schedule+0x120/0x120 [ 554.296875][ T2966] ? kernfs_fop_write_iter+0x15e/0x410 [ 554.302312][ T2966] ? __kasan_check_write+0x14/0x20 [ 554.307512][ T2966] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 554.312784][ T2966] cgroup_subtree_control_write+0xd19/0x1310 [ 554.318846][ T2966] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 554.324803][ T2966] ? __kasan_check_write+0x14/0x20 [ 554.329920][ T2966] ? _copy_from_iter+0x3fb/0xd60 [ 554.334842][ T2966] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 554.340912][ T2966] cgroup_file_write+0x28e/0x590 [ 554.345842][ T2966] ? cgroup_seqfile_stop+0xc0/0xc0 [ 554.350949][ T2966] ? mutex_trylock+0x180/0x180 [ 554.355891][ T2966] ? __kasan_check_write+0x14/0x20 [ 554.360988][ T2966] kernfs_fop_write_iter+0x2d0/0x410 [ 554.366344][ T2966] ? cgroup_seqfile_stop+0xc0/0xc0 [ 554.371443][ T2966] vfs_write+0xc4a/0xf80 [ 554.375664][ T2966] ? kernel_write+0x420/0x420 [ 554.380353][ T2966] ? do_sys_openat2+0x397/0x470 [ 554.385199][ T2966] ? __kasan_check_read+0x11/0x20 [ 554.390303][ T2966] ? __fdget_pos+0x27e/0x310 [ 554.394885][ T2966] ksys_write+0x198/0x2c0 [ 554.399196][ T2966] ? __ia32_sys_read+0x90/0x90 [ 554.403960][ T2966] ? debug_smp_processor_id+0x17/0x20 [ 554.409351][ T2966] __x64_sys_write+0x7b/0x90 [ 554.414274][ T2966] do_syscall_64+0x34/0x70 [ 554.418701][ T2966] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 554.424582][ T2966] RIP: 0033:0x7f48883727a9 [ 554.428984][ T2966] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 554.449140][ T2966] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 554.457582][ T2966] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 554.465748][ T2966] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 554.473710][ T2966] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 554.481761][ T2966] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 554.489733][ T2966] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000046 [ 554.497816][ T2966] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 554.547465][ T2978] FAULT_INJECTION: forcing a failure. [ 554.547465][ T2978] name failslab, interval 1, probability 0, space 0, times 0 [ 554.560149][ T2978] CPU: 0 PID: 2978 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 554.570570][ T2978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 554.580715][ T2978] Call Trace: [ 554.583991][ T2978] dump_stack_lvl+0x1e2/0x24b [ 554.588645][ T2978] ? bfq_pos_tree_add_move+0x43e/0x43e [ 554.594077][ T2978] ? selinux_kernfs_init_security+0x1a8/0x760 [ 554.600117][ T2978] dump_stack+0x15/0x17 [ 554.604250][ T2978] should_fail+0x3c0/0x510 [ 554.608644][ T2978] ? __kernfs_new_node+0x99/0x6e0 [ 554.613644][ T2978] __should_failslab+0x9f/0xe0 [ 554.618644][ T2978] should_failslab+0x9/0x20 [ 554.623136][ T2978] __kmalloc_track_caller+0x5f/0x350 [ 554.628412][ T2978] kstrdup_const+0x55/0x90 [ 554.632896][ T2978] __kernfs_new_node+0x99/0x6e0 [ 554.637724][ T2978] ? is_module_text_address+0xe1/0x140 [ 554.643157][ T2978] ? kernfs_new_node+0x170/0x170 [ 554.648245][ T2978] ? ptr_to_hashval+0x60/0x60 [ 554.653012][ T2978] ? mutex_lock+0xb2/0x1e0 [ 554.657410][ T2978] ? snprintf+0xd6/0x120 [ 554.661735][ T2978] ? mutex_unlock+0x29/0xf0 [ 554.666214][ T2978] kernfs_new_node+0x97/0x170 [ 554.670971][ T2978] __kernfs_create_file+0x4a/0x270 [ 554.676095][ T2978] cgroup_addrm_files+0xab8/0xfe0 [ 554.681133][ T2978] ? ____kasan_kmalloc+0xdc/0x110 [ 554.686138][ T2978] ? __kasan_kmalloc+0x9/0x10 [ 554.690797][ T2978] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 554.696407][ T2978] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 554.702535][ T2978] ? delete_node+0x759/0x7b0 [ 554.707114][ T2978] ? __kasan_check_read+0x11/0x20 [ 554.712141][ T2978] ? idr_replace+0x1c4/0x230 [ 554.716709][ T2978] ? idr_get_next+0x4b0/0x4b0 [ 554.721363][ T2978] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 554.726360][ T2978] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 554.731652][ T2978] css_populate_dir+0x137/0x370 [ 554.736478][ T2978] cgroup_apply_control_enable+0x8b9/0x12f0 [ 554.742392][ T2978] cgroup_apply_control+0x8e/0x7e0 [ 554.747491][ T2978] ? css_next_child+0x160/0x160 [ 554.752598][ T2978] ? io_schedule+0x120/0x120 [ 554.757181][ T2978] ? kernfs_fop_write_iter+0x15e/0x410 [ 554.762635][ T2978] ? __kasan_check_write+0x14/0x20 [ 554.767722][ T2978] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 554.772983][ T2978] cgroup_subtree_control_write+0xd19/0x1310 [ 554.778989][ T2978] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 554.784946][ T2978] ? __kasan_check_write+0x14/0x20 [ 554.790044][ T2978] ? _copy_from_iter+0x3fb/0xd60 [ 554.795222][ T2978] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 554.801405][ T2978] cgroup_file_write+0x28e/0x590 [ 554.806354][ T2978] ? cgroup_seqfile_stop+0xc0/0xc0 [ 554.811553][ T2978] ? mutex_trylock+0x180/0x180 [ 554.816380][ T2978] ? __kasan_check_write+0x14/0x20 [ 554.821467][ T2978] kernfs_fop_write_iter+0x2d0/0x410 [ 554.826737][ T2978] ? cgroup_seqfile_stop+0xc0/0xc0 [ 554.832010][ T2978] vfs_write+0xc4a/0xf80 [ 554.836315][ T2978] ? kernel_write+0x420/0x420 [ 554.840981][ T2978] ? do_sys_openat2+0x397/0x470 [ 554.845932][ T2978] ? __kasan_check_read+0x11/0x20 [ 554.850932][ T2978] ? __fdget_pos+0x27e/0x310 [ 554.855597][ T2978] ksys_write+0x198/0x2c0 [ 554.860176][ T2978] ? __ia32_sys_read+0x90/0x90 [ 554.864916][ T2978] ? debug_smp_processor_id+0x17/0x20 [ 554.870289][ T2978] __x64_sys_write+0x7b/0x90 [ 554.874993][ T2978] do_syscall_64+0x34/0x70 [ 554.879419][ T2978] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 554.885302][ T2978] RIP: 0033:0x7f48883727a9 [ 554.889874][ T2978] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 554.909485][ T2978] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 554.917878][ T2978] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 554.925848][ T2978] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 554.933801][ T2978] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 554.941750][ T2978] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 554.949894][ T2978] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000035 [ 554.958776][ T2978] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 554.987252][ T2981] FAULT_INJECTION: forcing a failure. [ 554.987252][ T2981] name failslab, interval 1, probability 0, space 0, times 0 [ 555.000307][ T2981] CPU: 0 PID: 2981 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 555.010722][ T2981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 555.020935][ T2981] Call Trace: [ 555.024237][ T2981] dump_stack_lvl+0x1e2/0x24b [ 555.028928][ T2981] ? bfq_pos_tree_add_move+0x43e/0x43e [ 555.034381][ T2981] ? stack_trace_save+0x1f0/0x1f0 [ 555.039503][ T2981] ? arch_stack_walk+0x106/0x140 [ 555.044458][ T2981] dump_stack+0x15/0x17 [ 555.048627][ T2981] should_fail+0x3c0/0x510 [ 555.053065][ T2981] ? __kernfs_new_node+0x99/0x6e0 [ 555.058086][ T2981] __should_failslab+0x9f/0xe0 [ 555.062849][ T2981] should_failslab+0x9/0x20 [ 555.067344][ T2981] __kmalloc_track_caller+0x5f/0x350 [ 555.072750][ T2981] kstrdup_const+0x55/0x90 [ 555.077283][ T2981] __kernfs_new_node+0x99/0x6e0 [ 555.082115][ T2981] ? is_module_text_address+0xe1/0x140 [ 555.087554][ T2981] ? kernfs_new_node+0x170/0x170 [ 555.092501][ T2981] ? ptr_to_hashval+0x60/0x60 [ 555.097336][ T2981] ? arch_stack_walk+0xf8/0x140 [ 555.102170][ T2981] ? snprintf+0xd6/0x120 [ 555.106397][ T2981] kernfs_new_node+0x97/0x170 [ 555.111091][ T2981] __kernfs_create_file+0x4a/0x270 [ 555.116368][ T2981] cgroup_addrm_files+0xab8/0xfe0 [ 555.121735][ T2981] ? ____kasan_kmalloc+0xdc/0x110 [ 555.126770][ T2981] ? __kasan_kmalloc+0x9/0x10 [ 555.131450][ T2981] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 555.136992][ T2981] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 555.143745][ T2981] ? delete_node+0x759/0x7b0 [ 555.148467][ T2981] ? __kasan_check_read+0x11/0x20 [ 555.153495][ T2981] ? delete_node+0x759/0x7b0 [ 555.158108][ T2981] ? __kasan_check_write+0x14/0x20 [ 555.163422][ T2981] ? idr_replace+0x1c4/0x230 [ 555.168014][ T2981] ? idr_get_next+0x4b0/0x4b0 [ 555.172688][ T2981] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 555.178529][ T2981] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 555.183730][ T2981] css_populate_dir+0x137/0x370 [ 555.188687][ T2981] cgroup_apply_control_enable+0x8b9/0x12f0 [ 555.194729][ T2981] cgroup_apply_control+0x8e/0x7e0 [ 555.200003][ T2981] ? css_next_child+0x160/0x160 [ 555.204842][ T2981] ? stack_trace_save+0x12d/0x1f0 [ 555.209945][ T2981] ? io_schedule+0x120/0x120 [ 555.214536][ T2981] ? kernfs_fop_write_iter+0x15e/0x410 [ 555.220024][ T2981] ? __kasan_check_write+0x14/0x20 [ 555.225261][ T2981] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 555.230648][ T2981] cgroup_subtree_control_write+0xd19/0x1310 [ 555.236771][ T2981] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 555.242753][ T2981] ? __kasan_check_write+0x14/0x20 [ 555.247849][ T2981] ? _copy_from_iter+0x3fb/0xd60 [ 555.252904][ T2981] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 555.258909][ T2981] cgroup_file_write+0x28e/0x590 [ 555.263841][ T2981] ? cgroup_seqfile_stop+0xc0/0xc0 [ 555.268945][ T2981] ? mutex_trylock+0x180/0x180 [ 555.273711][ T2981] ? __kasan_check_write+0x14/0x20 [ 555.278826][ T2981] kernfs_fop_write_iter+0x2d0/0x410 [ 555.284193][ T2981] ? cgroup_seqfile_stop+0xc0/0xc0 [ 555.289386][ T2981] vfs_write+0xc4a/0xf80 [ 555.293622][ T2981] ? slab_free_freelist_hook+0xcc/0x1a0 [ 555.299249][ T2981] ? kernel_write+0x420/0x420 [ 555.303918][ T2981] ? do_sys_openat2+0x397/0x470 [ 555.308825][ T2981] ? __kasan_check_read+0x11/0x20 [ 555.313841][ T2981] ? __fdget_pos+0x27e/0x310 [ 555.318512][ T2981] ksys_write+0x198/0x2c0 [ 555.322818][ T2981] ? __ia32_sys_read+0x90/0x90 [ 555.327562][ T2981] ? debug_smp_processor_id+0x17/0x20 [ 555.333013][ T2981] __x64_sys_write+0x7b/0x90 [ 555.337590][ T2981] do_syscall_64+0x34/0x70 [ 555.342078][ T2981] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 555.347950][ T2981] RIP: 0033:0x7f48883727a9 [ 555.352353][ T2981] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 555.372541][ T2981] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 555.381435][ T2981] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 555.389434][ T2981] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 555.397401][ T2981] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 555.405474][ T2981] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 555.413458][ T2981] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000037 [ 555.421670][ T2981] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 555.467184][ T2985] FAULT_INJECTION: forcing a failure. [ 555.467184][ T2985] name failslab, interval 1, probability 0, space 0, times 0 [ 555.480734][ T2985] CPU: 1 PID: 2985 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 555.491160][ T2985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 555.501523][ T2985] Call Trace: [ 555.505087][ T2985] dump_stack_lvl+0x1e2/0x24b [ 555.510190][ T2985] ? bfq_pos_tree_add_move+0x43e/0x43e [ 555.516373][ T2985] ? selinux_kernfs_init_security+0x1a8/0x760 [ 555.522911][ T2985] dump_stack+0x15/0x17 [ 555.527080][ T2985] should_fail+0x3c0/0x510 [ 555.531490][ T2985] ? __kernfs_new_node+0x99/0x6e0 [ 555.536514][ T2985] __should_failslab+0x9f/0xe0 [ 555.541272][ T2985] should_failslab+0x9/0x20 [ 555.545991][ T2985] __kmalloc_track_caller+0x5f/0x350 [ 555.551288][ T2985] kstrdup_const+0x55/0x90 [ 555.556044][ T2985] __kernfs_new_node+0x99/0x6e0 [ 555.560993][ T2985] ? is_module_text_address+0xe1/0x140 [ 555.566451][ T2985] ? kernfs_new_node+0x170/0x170 [ 555.571381][ T2985] ? ptr_to_hashval+0x60/0x60 [ 555.576051][ T2985] ? mutex_lock+0xb2/0x1e0 [ 555.580641][ T2985] ? snprintf+0xd6/0x120 [ 555.584870][ T2985] ? mutex_unlock+0x29/0xf0 [ 555.589443][ T2985] kernfs_new_node+0x97/0x170 [ 555.594207][ T2985] __kernfs_create_file+0x4a/0x270 [ 555.599665][ T2985] cgroup_addrm_files+0xab8/0xfe0 [ 555.604678][ T2985] ? ____kasan_kmalloc+0xdc/0x110 [ 555.609686][ T2985] ? __kasan_kmalloc+0x9/0x10 [ 555.614444][ T2985] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 555.619966][ T2985] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 555.626097][ T2985] ? delete_node+0x759/0x7b0 [ 555.630765][ T2985] ? __kasan_check_read+0x11/0x20 [ 555.635785][ T2985] ? idr_replace+0x1c4/0x230 [ 555.640361][ T2985] ? idr_get_next+0x4b0/0x4b0 [ 555.645106][ T2985] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 555.650124][ T2985] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 555.655410][ T2985] css_populate_dir+0x137/0x370 [ 555.660338][ T2985] cgroup_apply_control_enable+0x8b9/0x12f0 [ 555.666945][ T2985] cgroup_apply_control+0x8e/0x7e0 [ 555.672188][ T2985] ? css_next_child+0x160/0x160 [ 555.677053][ T2985] ? stack_trace_save+0x12d/0x1f0 [ 555.682155][ T2985] ? io_schedule+0x120/0x120 [ 555.686751][ T2985] ? kernfs_fop_write_iter+0x15e/0x410 [ 555.692194][ T2985] ? __kasan_check_write+0x14/0x20 [ 555.697290][ T2985] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 555.702575][ T2985] cgroup_subtree_control_write+0xd19/0x1310 [ 555.708538][ T2985] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 555.714632][ T2985] ? __kasan_check_write+0x14/0x20 [ 555.719725][ T2985] ? _copy_from_iter+0x3fb/0xd60 [ 555.724658][ T2985] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 555.730861][ T2985] cgroup_file_write+0x28e/0x590 [ 555.735836][ T2985] ? cgroup_seqfile_stop+0xc0/0xc0 [ 555.740942][ T2985] ? mutex_trylock+0x180/0x180 [ 555.745753][ T2985] ? __kasan_check_write+0x14/0x20 [ 555.750943][ T2985] kernfs_fop_write_iter+0x2d0/0x410 [ 555.756207][ T2985] ? cgroup_seqfile_stop+0xc0/0xc0 [ 555.761314][ T2985] vfs_write+0xc4a/0xf80 [ 555.765567][ T2985] ? slab_free_freelist_hook+0xcc/0x1a0 [ 555.771112][ T2985] ? kernel_write+0x420/0x420 [ 555.775855][ T2985] ? do_sys_openat2+0x397/0x470 [ 555.780695][ T2985] ? __kasan_check_read+0x11/0x20 [ 555.785707][ T2985] ? __fdget_pos+0x27e/0x310 [ 555.790281][ T2985] ksys_write+0x198/0x2c0 [ 555.794597][ T2985] ? __ia32_sys_read+0x90/0x90 [ 555.799341][ T2985] ? debug_smp_processor_id+0x17/0x20 [ 555.804699][ T2985] __x64_sys_write+0x7b/0x90 [ 555.809262][ T2985] do_syscall_64+0x34/0x70 [ 555.813744][ T2985] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 555.819615][ T2985] RIP: 0033:0x7f48883727a9 [ 555.824013][ T2985] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 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 c0 ff ff ff f7 d8 64 89 01 48 [ 555.843703][ T2985] RSP: 002b:00007ffc10808478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 555.852687][ T2985] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48883727a9 [ 555.860726][ T2985] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 555.869127][ T2985] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003432 [ 555.877096][ T2985] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc10808480 [ 555.885068][ T2985] R13: 00007ffc108084e0 R14: 00007ffc10808520 R15: 0000000000000036 [ 555.893422][ T2985] cgroup: cgroup_addrm_files: failed to add current, err=-12 [ 555.937316][ T2986] FAULT_INJECTION: forcing a failure. [ 555.937316][ T2986] name failslab, interval 1, probability 0, space 0, times 0 [ 555.950242][ T2986] CPU: 0 PID: 2986 Comm: syz-executor314 Not tainted 5.10.139-syzkaller-987205-g44cde61acc94 #0 [ 555.960810][ T2986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 555.970889][ T2986] Call Trace: [ 555.974337][ T2986] dump_stack_lvl+0x1e2/0x24b [ 555.979362][ T2986] ? bfq_pos_tree_add_move+0x43e/0x43e [ 555.984936][ T2986] ? selinux_kernfs_init_security+0x1a8/0x760 [ 555.991011][ T2986] dump_stack+0x15/0x17 [ 555.995158][ T2986] should_fail+0x3c0/0x510 [ 555.999561][ T2986] ? __kernfs_new_node+0x99/0x6e0 [ 556.004572][ T2986] __should_failslab+0x9f/0xe0 [ 556.009321][ T2986] should_failslab+0x9/0x20 [ 556.013831][ T2986] __kmalloc_track_caller+0x5f/0x350 [ 556.019093][ T2986] kstrdup_const+0x55/0x90 [ 556.023490][ T2986] __kernfs_new_node+0x99/0x6e0 [ 556.028335][ T2986] ? is_module_text_address+0xe1/0x140 [ 556.033770][ T2986] ? kernfs_new_node+0x170/0x170 [ 556.038712][ T2986] ? ptr_to_hashval+0x60/0x60 [ 556.043366][ T2986] ? mutex_lock+0xb2/0x1e0 [ 556.047847][ T2986] ? snprintf+0xd6/0x120 [ 556.052065][ T2986] ? mutex_unlock+0x29/0xf0 [ 556.056803][ T2986] kernfs_new_node+0x97/0x170 [ 556.061503][ T2986] __kernfs_create_file+0x4a/0x270 [ 556.066635][ T2986] cgroup_addrm_files+0xab8/0xfe0 [ 556.071829][ T2986] ? ____kasan_kmalloc+0xdc/0x110 [ 556.076837][ T2986] ? __kasan_kmalloc+0x9/0x10 [ 556.081496][ T2986] ? kmem_cache_alloc_trace+0x1dd/0x330