Warning: Permanently added '10.128.0.77' (ECDSA) to the list of known hosts. 2022/06/06 19:18:13 parsed 1 programs [ 36.358709][ T23] audit: type=1400 audit(1654543093.669:148): avc: denied { mounton } for pid=413 comm="syz-executor" path="/syzcgroup/unified" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=dir permissive=1 [ 36.358886][ T413] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 36.388872][ T413] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 36.395421][ T413] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 36.402058][ T413] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) 2022/06/06 19:18:13 executed programs: 0 [ 36.408678][ T413] cgroup: Unknown subsys name 'net' [ 36.414178][ T413] cgroup: Unknown subsys name 'devices' [ 36.420484][ T413] cgroup: Unknown subsys name 'hugetlb' [ 36.426136][ T413] cgroup: Unknown subsys name 'rlimit' [ 36.432270][ T23] audit: type=1400 audit(1654543093.749:149): avc: denied { mounton } for pid=413 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 36.486056][ T23] audit: type=1400 audit(1654543093.749:150): avc: denied { mount } for pid=413 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 36.512085][ T23] audit: type=1400 audit(1654543093.749:151): avc: denied { mounton } for pid=418 comm="syz-executor.0" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 36.534675][ T418] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.546111][ T23] audit: type=1400 audit(1654543093.749:152): avc: denied { module_request } for pid=418 comm="syz-executor.0" kmod="netdev-nr0" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 36.549400][ T418] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.575513][ T418] device bridge_slave_0 entered promiscuous mode [ 36.582350][ T418] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.589370][ T418] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.596710][ T418] device bridge_slave_1 entered promiscuous mode [ 36.693286][ T420] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.700316][ T420] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.707920][ T420] device bridge_slave_0 entered promiscuous mode [ 36.719174][ T425] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.726575][ T425] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.734109][ T425] device bridge_slave_0 entered promiscuous mode [ 36.741131][ T425] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.748154][ T425] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.755629][ T425] device bridge_slave_1 entered promiscuous mode [ 36.764858][ T420] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.771931][ T420] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.779189][ T420] device bridge_slave_1 entered promiscuous mode [ 36.800532][ T418] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.807588][ T418] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.814836][ T418] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.821857][ T418] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.857487][ T430] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.864761][ T430] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.872222][ T430] device bridge_slave_0 entered promiscuous mode [ 36.889036][ T429] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.896189][ T429] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.903615][ T429] device bridge_slave_0 entered promiscuous mode [ 36.910207][ T428] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.917330][ T428] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.924828][ T428] device bridge_slave_0 entered promiscuous mode [ 36.931508][ T430] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.938523][ T430] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.946001][ T430] device bridge_slave_1 entered promiscuous mode [ 36.962394][ T429] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.969511][ T429] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.977143][ T429] device bridge_slave_1 entered promiscuous mode [ 36.991126][ T428] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.998370][ T428] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.006107][ T428] device bridge_slave_1 entered promiscuous mode [ 37.017452][ T420] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.024602][ T420] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.031883][ T420] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.038888][ T420] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.082833][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.091529][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.099894][ T390] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.107449][ T390] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.115532][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 37.123292][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.151948][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.191833][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.199628][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.207904][ T390] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.214944][ T390] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.223244][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.231477][ T390] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.238571][ T390] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.245969][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.254335][ T390] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.261479][ T390] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.269059][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.277201][ T390] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.284396][ T390] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.291940][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.310735][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 37.318575][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.351335][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.359592][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.367728][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.377187][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.385217][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.423936][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.432500][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 37.441151][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.448582][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.457177][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.465149][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.474209][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.482289][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.490243][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.498692][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.505716][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.513293][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.521492][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.528582][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.535909][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.543801][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.562755][ T23] audit: type=1400 audit(1654543094.879:153): avc: denied { mount } for pid=418 comm="syz-executor.0" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 37.570991][ T418] !!!! cgroup_kn_unlock css_put(ffff888102d98000) [ 37.594783][ T418] !!!! cgroup_kn_unlock css_put(ffff888104bc8000) [ 37.601451][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 37.601555][ T418] !!!! cgroup_kn_unlock css_put(ffff888104bca000) [ 37.609059][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.625101][ T23] audit: type=1400 audit(1654543094.939:154): avc: denied { mounton } for pid=447 comm="syz-executor.0" path="/root/syzkaller-testdir2267983861/syzkaller.1oQ83F/0/file0" dev="sda1" ino=1158 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 37.625361][ T448] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 37.659345][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.668693][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.676780][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.684605][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.691311][ T19] !!!! css_release kill_css(ffff88811f58fc00) [ 37.693307][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 37.699698][ T23] audit: type=1400 audit(1654543095.009:155): avc: denied { append } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 37.707883][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.729931][ T448] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 37.737814][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.744655][ T23] audit: type=1400 audit(1654543095.009:156): avc: denied { open } for pid=142 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 37.752538][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.781781][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.782385][ T23] audit: type=1400 audit(1654543095.009:157): avc: denied { getattr } for pid=142 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 37.789524][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.821224][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 37.827815][ T451] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 37.840932][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 37.848578][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.856199][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 37.865104][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.871172][ T19] !!!! css_release kill_css(ffff88810fd3cc00) [ 37.874816][ T385] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.880202][ T451] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 37.886249][ T385] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.886479][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 37.908734][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.917029][ T385] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.924083][ T385] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.927476][ T453] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 37.931640][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 37.946037][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.951091][ T19] !!!! css_release kill_css(ffff88810ff5d000) [ 37.954035][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 37.960249][ T453] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 37.968167][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.982255][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 37.989991][ T455] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 37.990544][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.015689][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 38.016063][ T19] !!!! css_release kill_css(ffff88810ff5e800) [ 38.023776][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 38.029638][ T455] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.038619][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 38.053655][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.061208][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.064972][ T458] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.069914][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 38.084451][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.092927][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 38.101054][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 38.101172][ T19] !!!! css_release kill_css(ffff88810fee8800) [ 38.108971][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 38.115100][ T458] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.123364][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.146007][ T460] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.146719][ T430] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.165131][ T430] !!!! cgroup_kn_unlock css_put(ffff8881101de000) [ 38.171892][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 38.172445][ T430] !!!! cgroup_kn_unlock css_put(ffff88811e048010) [ 38.180129][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.187202][ T430] !!!! cgroup_kn_unlock css_put(ffff8881101d8000) [ 38.195917][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 38.210055][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.218512][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 38.226878][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.235677][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 38.243789][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 38.251719][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 38.259669][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 38.267722][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 38.275977][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.284368][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 38.292283][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 38.307816][ T430] !!!! cgroup_kn_unlock css_put(ffff88811e040010) [ 38.307869][ T449] !!!! css_release kill_css(ffff88810eadfc00) [ 38.321718][ T425] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.328620][ T420] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.329056][ T430] !!!! cgroup_kn_unlock css_put(ffff8881104de000) [ 38.337086][ T460] FAULT_INJECTION: forcing a failure. [ 38.337086][ T460] name failslab, interval 1, probability 0, space 0, times 1 [ 38.355536][ T460] CPU: 1 PID: 460 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 38.365699][ T460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.375844][ T460] Call Trace: [ 38.379118][ T460] dump_stack_lvl+0x1e2/0x24b [ 38.383965][ T460] ? panic+0x7d7/0x7d7 [ 38.388038][ T460] ? bfq_pos_tree_add_move+0x43e/0x43e [ 38.393482][ T460] ? selinux_kernfs_init_security+0x1a8/0x760 [ 38.399662][ T460] dump_stack+0x15/0x17 [ 38.403805][ T460] should_fail+0x3c0/0x510 [ 38.408212][ T460] __should_failslab+0x9f/0xe0 [ 38.412961][ T460] should_failslab+0x9/0x20 [ 38.417455][ T460] kmem_cache_alloc+0x3f/0x300 [ 38.422295][ T460] ? __kernfs_new_node+0xdb/0x6e0 [ 38.427475][ T460] __kernfs_new_node+0xdb/0x6e0 [ 38.432307][ T460] ? is_module_text_address+0xe1/0x140 [ 38.437833][ T460] ? kernfs_new_node+0x170/0x170 [ 38.442751][ T460] ? ptr_to_hashval+0x60/0x60 [ 38.447455][ T460] ? arch_stack_walk+0xf8/0x140 [ 38.452301][ T460] ? snprintf+0xd6/0x120 [ 38.456544][ T460] kernfs_new_node+0x97/0x170 [ 38.461204][ T460] __kernfs_create_file+0x4a/0x270 [ 38.466313][ T460] cgroup_addrm_files+0xab8/0xfe0 [ 38.471320][ T460] ? ____kasan_kmalloc+0xdc/0x110 [ 38.476325][ T460] ? __kasan_kmalloc+0x9/0x10 [ 38.481012][ T460] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 38.486576][ T460] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 38.492738][ T460] ? delete_node+0x759/0x7b0 [ 38.497403][ T460] ? __kasan_check_read+0x11/0x20 [ 38.502410][ T460] ? delete_node+0x759/0x7b0 [ 38.507001][ T460] ? __kasan_check_write+0x14/0x20 [ 38.512106][ T460] ? idr_replace+0x1c4/0x230 [ 38.516755][ T460] ? idr_get_next+0x4b0/0x4b0 [ 38.521600][ T460] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 38.526628][ T460] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 38.531821][ T460] css_populate_dir+0x137/0x370 [ 38.536841][ T460] cgroup_apply_control_enable+0x8b9/0x12f0 [ 38.542936][ T460] cgroup_apply_control+0x93/0x710 [ 38.548030][ T460] ? css_next_child+0x160/0x160 [ 38.552856][ T460] ? io_schedule+0x120/0x120 [ 38.557430][ T460] ? kernfs_fop_write_iter+0x15e/0x410 [ 38.562894][ T460] ? __kasan_check_write+0x14/0x20 [ 38.567994][ T460] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 38.573261][ T460] cgroup_subtree_control_write+0xd19/0x1310 [ 38.579501][ T460] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 38.585665][ T460] ? __kasan_check_write+0x14/0x20 [ 38.590866][ T460] ? _copy_from_iter+0x3fb/0xd60 [ 38.595948][ T460] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 38.602129][ T460] cgroup_file_write+0x28e/0x590 [ 38.607310][ T460] ? cgroup_seqfile_stop+0xc0/0xc0 [ 38.612602][ T460] ? mutex_lock+0xa6/0x110 [ 38.617103][ T460] ? mutex_trylock+0xb0/0xb0 [ 38.621758][ T460] ? __kasan_check_write+0x14/0x20 [ 38.626861][ T460] kernfs_fop_write_iter+0x2d0/0x410 [ 38.632131][ T460] ? cgroup_seqfile_stop+0xc0/0xc0 [ 38.637331][ T460] vfs_write+0xc1c/0xf40 [ 38.641557][ T460] ? kernel_write+0x3c0/0x3c0 [ 38.646302][ T460] ? mutex_trylock+0xb0/0xb0 [ 38.650878][ T460] ? __fdget_pos+0x26d/0x310 [ 38.655447][ T460] ? ksys_write+0x77/0x2c0 [ 38.659895][ T460] ksys_write+0x198/0x2c0 [ 38.664218][ T460] ? __ia32_sys_read+0x90/0x90 [ 38.668969][ T460] ? debug_smp_processor_id+0x17/0x20 [ 38.674407][ T460] __x64_sys_write+0x7b/0x90 [ 38.678976][ T460] do_syscall_64+0x34/0x70 [ 38.683373][ T460] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.689260][ T460] RIP: 0033:0x7ff5e9f170e9 [ 38.693652][ T460] 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 [ 38.713739][ T460] RSP: 002b:00007ff5e9e8d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 38.722140][ T460] RAX: ffffffffffffffda RBX: 00007ff5ea029f60 RCX: 00007ff5e9f170e9 [ 38.730194][ T460] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 38.738148][ T460] RBP: 00007ff5e9e8d1d0 R08: 0000000000000000 R09: 0000000000000000 [ 38.746113][ T460] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 38.754272][ T460] R13: 00007ffc4a28769f R14: 00007ff5e9e8d300 R15: 0000000000022000 [ 38.765982][ T460] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 38.774483][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 38.781308][ T460] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.782674][ T425] !!!! cgroup_kn_unlock css_put(ffff888110590000) [ 38.790278][ T420] !!!! cgroup_kn_unlock css_put(ffff888110604000) [ 38.796320][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.804091][ T420] !!!! cgroup_kn_unlock css_put(ffff88811e048010) [ 38.812026][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 38.821869][ T420] !!!! cgroup_kn_unlock css_put(ffff888110926000) [ 38.827919][ T425] !!!! cgroup_kn_unlock css_put(ffff88811e048010) [ 38.831682][ T390] !!!! css_release kill_css(ffff888110386000) [ 38.840721][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.848332][ T390] !!!! css_release kill_css(ffff888110384400) [ 38.857042][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 38.859294][ T425] !!!! cgroup_kn_unlock css_put(ffff88811075e000) [ 38.867124][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.881786][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 38.889933][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.898391][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 38.906690][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.915566][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 38.923945][ T461] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.933820][ T420] !!!! cgroup_kn_unlock css_put(ffff88811e040010) [ 38.940629][ T390] !!!! css_release kill_css(ffff888110387000) [ 38.947025][ T420] !!!! cgroup_kn_unlock css_put(ffff888110906000) [ 38.948264][ T428] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.954099][ T468] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.967227][ T428] !!!! cgroup_kn_unlock css_put(ffff888110900000) [ 38.967453][ T466] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.974560][ T428] !!!! cgroup_kn_unlock css_put(ffff88811e048010) [ 38.988933][ T425] !!!! cgroup_kn_unlock css_put(ffff88811e040010) [ 38.995713][ T428] !!!! cgroup_kn_unlock css_put(ffff8881108d6000) [ 38.995823][ T469] FAULT_INJECTION: forcing a failure. [ 38.995823][ T469] name failslab, interval 1, probability 0, space 0, times 0 [ 39.017044][ T469] CPU: 1 PID: 469 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 39.027204][ T469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.037462][ T469] Call Trace: [ 39.040762][ T469] dump_stack_lvl+0x1e2/0x24b [ 39.045423][ T469] ? bfq_pos_tree_add_move+0x43e/0x43e [ 39.050945][ T469] ? selinux_kernfs_init_security+0x1a8/0x760 [ 39.056997][ T469] dump_stack+0x15/0x17 [ 39.061136][ T469] should_fail+0x3c0/0x510 [ 39.065627][ T469] ? __kernfs_new_node+0x99/0x6e0 [ 39.070763][ T469] __should_failslab+0x9f/0xe0 [ 39.075518][ T469] should_failslab+0x9/0x20 [ 39.080282][ T469] __kmalloc_track_caller+0x5f/0x350 [ 39.085809][ T469] kstrdup_const+0x55/0x90 [ 39.090291][ T469] __kernfs_new_node+0x99/0x6e0 [ 39.095117][ T469] ? is_module_text_address+0xe1/0x140 [ 39.100564][ T469] ? kernfs_new_node+0x170/0x170 [ 39.105476][ T469] ? ptr_to_hashval+0x60/0x60 [ 39.110128][ T469] ? arch_stack_walk+0xf8/0x140 [ 39.115232][ T469] ? snprintf+0xd6/0x120 [ 39.119451][ T469] kernfs_new_node+0x97/0x170 [ 39.124103][ T469] __kernfs_create_file+0x4a/0x270 [ 39.129365][ T469] cgroup_addrm_files+0xab8/0xfe0 [ 39.134368][ T469] ? ____kasan_kmalloc+0xdc/0x110 [ 39.139371][ T469] ? __kasan_kmalloc+0x9/0x10 [ 39.144044][ T469] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 39.149852][ T469] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 39.156091][ T469] ? delete_node+0x759/0x7b0 [ 39.160792][ T469] ? __kasan_check_read+0x11/0x20 [ 39.165809][ T469] ? delete_node+0x759/0x7b0 [ 39.170466][ T469] ? __kasan_check_write+0x14/0x20 [ 39.176107][ T469] ? idr_replace+0x1c4/0x230 [ 39.180704][ T469] ? idr_get_next+0x4b0/0x4b0 [ 39.185413][ T469] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 39.190509][ T469] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 39.195719][ T469] css_populate_dir+0x137/0x370 [ 39.200687][ T469] cgroup_apply_control_enable+0x8b9/0x12f0 [ 39.206687][ T469] cgroup_apply_control+0x93/0x710 [ 39.211799][ T469] ? css_next_child+0x160/0x160 [ 39.216636][ T469] ? io_schedule+0x120/0x120 [ 39.221205][ T469] ? finish_task_switch+0x130/0x580 [ 39.226391][ T469] ? __kasan_check_write+0x14/0x20 [ 39.231492][ T469] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 39.236766][ T469] cgroup_subtree_control_write+0xd19/0x1310 [ 39.242750][ T469] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 39.249494][ T469] ? __kasan_check_read+0x11/0x20 [ 39.254564][ T469] ? preempt_schedule_irq+0xef/0x140 [ 39.260071][ T469] ? preempt_schedule_notrace+0x140/0x140 [ 39.265781][ T469] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 39.271760][ T469] cgroup_file_write+0x28e/0x590 [ 39.276689][ T469] ? cgroup_seqfile_stop+0xc0/0xc0 [ 39.281889][ T469] ? cgroup_seqfile_stop+0xc0/0xc0 [ 39.287034][ T469] kernfs_fop_write_iter+0x2d0/0x410 [ 39.292321][ T469] ? cgroup_seqfile_stop+0xc0/0xc0 [ 39.297458][ T469] vfs_write+0xc1c/0xf40 [ 39.301685][ T469] ? kernel_write+0x3c0/0x3c0 [ 39.306358][ T469] ? mutex_trylock+0xb0/0xb0 [ 39.310926][ T469] ? __fdget_pos+0x26d/0x310 [ 39.315579][ T469] ? ksys_write+0x77/0x2c0 [ 39.319970][ T469] ksys_write+0x198/0x2c0 [ 39.324277][ T469] ? __ia32_sys_read+0x90/0x90 [ 39.329017][ T469] ? debug_smp_processor_id+0x17/0x20 [ 39.334366][ T469] __x64_sys_write+0x7b/0x90 [ 39.338943][ T469] do_syscall_64+0x34/0x70 [ 39.343539][ T469] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.349405][ T469] RIP: 0033:0x7ff5e9f170e9 [ 39.353820][ T469] 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 [ 39.373406][ T469] RSP: 002b:00007ff5e9e6c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.381797][ T469] RAX: ffffffffffffffda RBX: 00007ff5ea02a030 RCX: 00007ff5e9f170e9 [ 39.389781][ T469] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 39.397894][ T469] RBP: 00007ff5e9e6c1d0 R08: 0000000000000000 R09: 0000000000000000 [ 39.406219][ T469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 39.414801][ T469] R13: 00007ffc4a28769f R14: 00007ff5e9e6c300 R15: 0000000000022000 [ 39.426207][ T469] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 39.435953][ T429] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 39.438579][ T469] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 39.445088][ T429] !!!! cgroup_kn_unlock css_put(ffff8881108d4000) [ 39.449499][ T425] !!!! cgroup_kn_unlock css_put(ffff888110cae000) [ 39.458913][ T429] !!!! cgroup_kn_unlock css_put(ffff88811e048010) [ 39.469625][ T428] !!!! cgroup_kn_unlock css_put(ffff88811e040010) [ 39.476569][ T390] !!!! css_release kill_css(ffff888110bc1400) [ 39.484717][ T390] !!!! css_release kill_css(ffff888110bc0800) [ 39.491469][ T429] !!!! cgroup_kn_unlock css_put(ffff888110eba000) [ 39.491609][ T390] !!!! css_release kill_css(ffff888110bc2800) [ 39.504662][ T428] !!!! cgroup_kn_unlock css_put(ffff888110ebe000) [ 39.504680][ T477] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 39.517858][ T470] FAULT_INJECTION: forcing a failure. [ 39.517858][ T470] name failslab, interval 1, probability 0, space 0, times 0 [ 39.530617][ T470] CPU: 1 PID: 470 Comm: syz-executor.4 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 39.542640][ T470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.552685][ T470] Call Trace: [ 39.556076][ T470] dump_stack_lvl+0x1e2/0x24b [ 39.560743][ T470] ? panic+0x7d7/0x7d7 [ 39.565246][ T470] ? bfq_pos_tree_add_move+0x43e/0x43e [ 39.570693][ T470] ? selinux_kernfs_init_security+0x1a8/0x760 [ 39.576748][ T470] dump_stack+0x15/0x17 [ 39.580900][ T470] should_fail+0x3c0/0x510 [ 39.585666][ T470] __should_failslab+0x9f/0xe0 [ 39.590523][ T470] should_failslab+0x9/0x20 [ 39.595366][ T470] kmem_cache_alloc+0x3f/0x300 [ 39.600162][ T470] ? __kernfs_new_node+0xdb/0x6e0 [ 39.605182][ T470] __kernfs_new_node+0xdb/0x6e0 [ 39.610023][ T470] ? is_module_text_address+0xe1/0x140 [ 39.615462][ T470] ? kernfs_new_node+0x170/0x170 [ 39.620378][ T470] ? ptr_to_hashval+0x60/0x60 [ 39.625123][ T470] ? arch_stack_walk+0xf8/0x140 [ 39.629992][ T470] ? snprintf+0xd6/0x120 [ 39.634324][ T470] kernfs_new_node+0x97/0x170 [ 39.638987][ T470] __kernfs_create_file+0x4a/0x270 [ 39.644388][ T470] cgroup_addrm_files+0xab8/0xfe0 [ 39.649408][ T470] ? ____kasan_kmalloc+0xdc/0x110 [ 39.654423][ T470] ? __kasan_kmalloc+0x9/0x10 [ 39.659096][ T470] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 39.664993][ T470] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 39.671308][ T470] ? delete_node+0x759/0x7b0 [ 39.675880][ T470] ? __kasan_check_read+0x11/0x20 [ 39.680888][ T470] ? delete_node+0x759/0x7b0 [ 39.685474][ T470] ? __kasan_check_write+0x14/0x20 [ 39.690566][ T470] ? idr_replace+0x1c4/0x230 [ 39.695133][ T470] ? idr_get_next+0x4b0/0x4b0 [ 39.699811][ T470] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 39.704809][ T470] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 39.710001][ T470] css_populate_dir+0x137/0x370 [ 39.715021][ T470] cgroup_apply_control_enable+0x8b9/0x12f0 [ 39.720914][ T470] cgroup_apply_control+0x93/0x710 [ 39.726185][ T470] ? css_next_child+0x160/0x160 [ 39.731015][ T470] ? dequeue_task_fair+0x7ad/0xb50 [ 39.737163][ T470] ? io_schedule+0x120/0x120 [ 39.741742][ T470] ? kernfs_fop_write_iter+0x15e/0x410 [ 39.747296][ T470] ? __kasan_check_write+0x14/0x20 [ 39.752413][ T470] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 39.757754][ T470] cgroup_subtree_control_write+0xd19/0x1310 [ 39.763806][ T470] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 39.769763][ T470] ? __kasan_check_write+0x14/0x20 [ 39.774857][ T470] ? _copy_from_iter+0x3fb/0xd60 [ 39.779771][ T470] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 39.785747][ T470] cgroup_file_write+0x28e/0x590 [ 39.790759][ T470] ? cgroup_seqfile_stop+0xc0/0xc0 [ 39.796030][ T470] ? mutex_lock+0xa6/0x110 [ 39.800420][ T470] ? mutex_trylock+0xb0/0xb0 [ 39.805174][ T470] ? __kasan_check_write+0x14/0x20 [ 39.810263][ T470] kernfs_fop_write_iter+0x2d0/0x410 [ 39.815840][ T470] ? cgroup_seqfile_stop+0xc0/0xc0 [ 39.820926][ T470] vfs_write+0xc1c/0xf40 [ 39.825142][ T470] ? kernel_write+0x3c0/0x3c0 [ 39.829796][ T470] ? mutex_trylock+0xb0/0xb0 [ 39.834359][ T470] ? __fdget_pos+0x26d/0x310 [ 39.838921][ T470] ? ksys_write+0x77/0x2c0 [ 39.843310][ T470] ksys_write+0x198/0x2c0 [ 39.847612][ T470] ? __ia32_sys_read+0x90/0x90 [ 39.852354][ T470] ? debug_smp_processor_id+0x17/0x20 [ 39.857702][ T470] __x64_sys_write+0x7b/0x90 [ 39.862277][ T470] do_syscall_64+0x34/0x70 [ 39.866686][ T470] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.872573][ T470] RIP: 0033:0x7fe78c1da0e9 [ 39.876962][ T470] 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 [ 39.896553][ T470] RSP: 002b:00007fe78c12f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.904949][ T470] RAX: ffffffffffffffda RBX: 00007fe78c2ed030 RCX: 00007fe78c1da0e9 [ 39.912993][ T470] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 39.921121][ T470] RBP: 00007fe78c12f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 39.929450][ T470] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 39.937561][ T470] R13: 00007ffe83e0826f R14: 00007fe78c12f300 R15: 0000000000022000 [ 39.949560][ T470] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 39.959116][ T470] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 39.962659][ T429] !!!! cgroup_kn_unlock css_put(ffff88811e040010) [ 39.978432][ T429] !!!! cgroup_kn_unlock css_put(ffff8881114fc000) [ 39.990664][ T389] !!!! css_release kill_css(ffff888110e0d400) [ 39.997181][ T389] !!!! css_release kill_css(ffff888110e0c800) [ 40.003874][ T389] !!!! css_release kill_css(ffff888110e0e800) [ 40.010255][ T477] FAULT_INJECTION: forcing a failure. [ 40.010255][ T477] name failslab, interval 1, probability 0, space 0, times 0 [ 40.023369][ T477] CPU: 1 PID: 477 Comm: syz-executor.5 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 40.033896][ T477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.044030][ T477] Call Trace: [ 40.047301][ T477] dump_stack_lvl+0x1e2/0x24b [ 40.052059][ T477] ? bfq_pos_tree_add_move+0x43e/0x43e [ 40.057511][ T477] ? selinux_kernfs_init_security+0x1a8/0x760 [ 40.063565][ T477] dump_stack+0x15/0x17 [ 40.067889][ T477] should_fail+0x3c0/0x510 [ 40.072279][ T477] ? __kernfs_new_node+0x99/0x6e0 [ 40.077370][ T477] __should_failslab+0x9f/0xe0 [ 40.082119][ T477] should_failslab+0x9/0x20 [ 40.086711][ T477] __kmalloc_track_caller+0x5f/0x350 [ 40.092003][ T477] kstrdup_const+0x55/0x90 [ 40.096409][ T477] __kernfs_new_node+0x99/0x6e0 [ 40.101245][ T477] ? is_module_text_address+0xe1/0x140 [ 40.106675][ T477] ? kernfs_new_node+0x170/0x170 [ 40.111628][ T477] ? ptr_to_hashval+0x60/0x60 [ 40.116305][ T477] ? arch_stack_walk+0xf8/0x140 [ 40.121275][ T477] ? snprintf+0xd6/0x120 [ 40.125599][ T477] kernfs_new_node+0x97/0x170 [ 40.130253][ T477] __kernfs_create_file+0x4a/0x270 [ 40.135340][ T477] cgroup_addrm_files+0xab8/0xfe0 [ 40.140363][ T477] ? ____kasan_kmalloc+0xdc/0x110 [ 40.145374][ T477] ? __kasan_kmalloc+0x9/0x10 [ 40.150022][ T477] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 40.155547][ T477] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 40.161680][ T477] ? delete_node+0x759/0x7b0 [ 40.166242][ T477] ? __kasan_check_read+0x11/0x20 [ 40.171235][ T477] ? delete_node+0x759/0x7b0 [ 40.175823][ T477] ? __kasan_check_write+0x14/0x20 [ 40.180935][ T477] ? idr_replace+0x1c4/0x230 [ 40.185512][ T477] ? idr_get_next+0x4b0/0x4b0 [ 40.190169][ T477] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 40.195257][ T477] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 40.200443][ T477] css_populate_dir+0x137/0x370 [ 40.205303][ T477] cgroup_apply_control_enable+0x8b9/0x12f0 [ 40.211176][ T477] cgroup_apply_control+0x93/0x710 [ 40.216284][ T477] ? css_next_child+0x160/0x160 [ 40.221115][ T477] ? io_schedule+0x120/0x120 [ 40.225788][ T477] ? kernfs_fop_write_iter+0x15e/0x410 [ 40.231225][ T477] ? __kasan_check_write+0x14/0x20 [ 40.236321][ T477] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 40.241580][ T477] cgroup_subtree_control_write+0xd19/0x1310 [ 40.247653][ T477] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 40.253630][ T477] ? __kasan_check_write+0x14/0x20 [ 40.258722][ T477] ? _copy_from_iter+0x3fb/0xd60 [ 40.263654][ T477] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 40.269784][ T477] cgroup_file_write+0x28e/0x590 [ 40.274695][ T477] ? cgroup_seqfile_stop+0xc0/0xc0 [ 40.279779][ T477] ? mutex_lock+0xa6/0x110 [ 40.284176][ T477] ? mutex_trylock+0xb0/0xb0 [ 40.288771][ T477] ? __kasan_check_write+0x14/0x20 [ 40.294737][ T477] kernfs_fop_write_iter+0x2d0/0x410 [ 40.300011][ T477] ? cgroup_seqfile_stop+0xc0/0xc0 [ 40.305277][ T477] vfs_write+0xc1c/0xf40 [ 40.309500][ T477] ? kernel_write+0x3c0/0x3c0 [ 40.314146][ T477] ? mutex_trylock+0xb0/0xb0 [ 40.318729][ T477] ? __fdget_pos+0x26d/0x310 [ 40.323313][ T477] ? ksys_write+0x77/0x2c0 [ 40.327711][ T477] ksys_write+0x198/0x2c0 [ 40.332150][ T477] ? __ia32_sys_read+0x90/0x90 [ 40.336989][ T477] ? debug_smp_processor_id+0x17/0x20 [ 40.342331][ T477] __x64_sys_write+0x7b/0x90 [ 40.346903][ T477] do_syscall_64+0x34/0x70 [ 40.351383][ T477] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.357425][ T477] RIP: 0033:0x7fe4108200e9 [ 40.361811][ T477] 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 [ 40.381390][ T477] RSP: 002b:00007fe410796168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.389874][ T477] RAX: ffffffffffffffda RBX: 00007fe410932f60 RCX: 00007fe4108200e9 [ 40.397835][ T477] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 40.405811][ T477] RBP: 00007fe4107961d0 R08: 0000000000000000 R09: 0000000000000000 [ 40.413781][ T477] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 40.421815][ T477] R13: 00007fffcdf413ef R14: 00007fe410796300 R15: 0000000000022000 [ 40.430886][ T477] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 40.439716][ T477] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.491231][ T461] !!!! css_release kill_css(ffff88811152b800) [ 40.497563][ T461] !!!! css_release kill_css(ffff888111529400) [ 40.504208][ T461] !!!! css_release kill_css(ffff888111528800) [ 40.511058][ T486] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.511667][ T476] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.517594][ T483] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.524435][ T489] FAULT_INJECTION: forcing a failure. [ 40.524435][ T489] name failslab, interval 1, probability 0, space 0, times 0 [ 40.524447][ T489] CPU: 1 PID: 489 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 40.524452][ T489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.524455][ T489] Call Trace: [ 40.524470][ T489] dump_stack_lvl+0x1e2/0x24b [ 40.524478][ T489] ? panic+0x7d7/0x7d7 [ 40.524487][ T489] ? bfq_pos_tree_add_move+0x43e/0x43e [ 40.524503][ T489] ? selinux_kernfs_init_security+0x1a8/0x760 [ 40.587974][ T489] dump_stack+0x15/0x17 [ 40.592209][ T489] should_fail+0x3c0/0x510 [ 40.596621][ T489] __should_failslab+0x9f/0xe0 [ 40.601491][ T489] should_failslab+0x9/0x20 [ 40.606262][ T489] kmem_cache_alloc+0x3f/0x300 [ 40.611358][ T489] ? __kernfs_new_node+0xdb/0x6e0 [ 40.616363][ T489] __kernfs_new_node+0xdb/0x6e0 [ 40.621367][ T489] ? is_module_text_address+0xe1/0x140 [ 40.626823][ T489] ? kernfs_new_node+0x170/0x170 [ 40.631742][ T489] ? ptr_to_hashval+0x60/0x60 [ 40.636398][ T489] ? arch_stack_walk+0xf8/0x140 [ 40.641228][ T489] ? snprintf+0xd6/0x120 [ 40.645461][ T489] kernfs_new_node+0x97/0x170 [ 40.650119][ T489] __kernfs_create_file+0x4a/0x270 [ 40.655298][ T489] cgroup_addrm_files+0xab8/0xfe0 [ 40.660321][ T489] ? ____kasan_kmalloc+0xdc/0x110 [ 40.665342][ T489] ? __kasan_kmalloc+0x9/0x10 [ 40.670019][ T489] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 40.675547][ T489] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 40.681686][ T489] ? delete_node+0x759/0x7b0 [ 40.686265][ T489] ? __kasan_check_read+0x11/0x20 [ 40.691269][ T489] ? delete_node+0x759/0x7b0 [ 40.695969][ T489] ? __kasan_check_write+0x14/0x20 [ 40.701067][ T489] ? idr_replace+0x1c4/0x230 [ 40.705649][ T489] ? idr_get_next+0x4b0/0x4b0 [ 40.710304][ T489] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 40.715322][ T489] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 40.720500][ T489] css_populate_dir+0x137/0x370 [ 40.725345][ T489] cgroup_apply_control_enable+0x8b9/0x12f0 [ 40.731428][ T489] cgroup_apply_control+0x93/0x710 [ 40.736623][ T489] ? css_next_child+0x160/0x160 [ 40.741684][ T489] ? dequeue_task_fair+0x7ad/0xb50 [ 40.746878][ T489] ? io_schedule+0x120/0x120 [ 40.751491][ T489] ? kernfs_fop_write_iter+0x15e/0x410 [ 40.757187][ T489] ? __kasan_check_write+0x14/0x20 [ 40.762335][ T489] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 40.767718][ T489] cgroup_subtree_control_write+0xd19/0x1310 [ 40.773684][ T489] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 40.779650][ T489] ? __kasan_check_write+0x14/0x20 [ 40.784744][ T489] ? _copy_from_iter+0x3fb/0xd60 [ 40.789756][ T489] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 40.795721][ T489] cgroup_file_write+0x28e/0x590 [ 40.800638][ T489] ? cgroup_seqfile_stop+0xc0/0xc0 [ 40.805734][ T489] ? mutex_lock+0xa6/0x110 [ 40.810148][ T489] ? mutex_trylock+0xb0/0xb0 [ 40.814902][ T489] ? __kasan_check_write+0x14/0x20 [ 40.820002][ T489] kernfs_fop_write_iter+0x2d0/0x410 [ 40.825383][ T489] ? cgroup_seqfile_stop+0xc0/0xc0 [ 40.830481][ T489] vfs_write+0xc1c/0xf40 [ 40.834815][ T489] ? kernel_write+0x3c0/0x3c0 [ 40.839529][ T489] ? mutex_trylock+0xb0/0xb0 [ 40.844110][ T489] ? __fdget_pos+0x26d/0x310 [ 40.848939][ T489] ? ksys_write+0x77/0x2c0 [ 40.853336][ T489] ksys_write+0x198/0x2c0 [ 40.857732][ T489] ? __ia32_sys_read+0x90/0x90 [ 40.862472][ T489] ? debug_smp_processor_id+0x17/0x20 [ 40.867905][ T489] __x64_sys_write+0x7b/0x90 [ 40.872583][ T489] do_syscall_64+0x34/0x70 [ 40.876978][ T489] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.882947][ T489] RIP: 0033:0x7ff5e9f170e9 [ 40.887499][ T489] 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 [ 40.907182][ T489] RSP: 002b:00007ff5e9e6c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.916942][ T489] RAX: ffffffffffffffda RBX: 00007ff5ea02a030 RCX: 00007ff5e9f170e9 [ 40.924929][ T489] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 40.932984][ T489] RBP: 00007ff5e9e6c1d0 R08: 0000000000000000 R09: 0000000000000000 [ 40.941382][ T489] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 40.949548][ T489] R13: 00007ffc4a28769f R14: 00007ff5e9e6c300 R15: 0000000000022000 [ 40.958613][ T489] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 40.965804][ T489] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.990979][ T390] !!!! css_release kill_css(ffff888110b5bc00) [ 40.997204][ T390] !!!! css_release kill_css(ffff888110f1c800) [ 41.003736][ T390] !!!! css_release kill_css(ffff888110f1d400) [ 41.010161][ T480] FAULT_INJECTION: forcing a failure. [ 41.010161][ T480] name failslab, interval 1, probability 0, space 0, times 0 [ 41.023103][ T480] CPU: 0 PID: 480 Comm: syz-executor.1 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 41.033357][ T480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.043664][ T480] Call Trace: [ 41.046938][ T480] dump_stack_lvl+0x1e2/0x24b [ 41.051687][ T480] ? panic+0x7d7/0x7d7 [ 41.055753][ T480] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.061326][ T480] ? selinux_kernfs_init_security+0x1a8/0x760 [ 41.067708][ T480] dump_stack+0x15/0x17 [ 41.071843][ T480] should_fail+0x3c0/0x510 [ 41.076318][ T480] __should_failslab+0x9f/0xe0 [ 41.081082][ T480] should_failslab+0x9/0x20 [ 41.085568][ T480] kmem_cache_alloc+0x3f/0x300 [ 41.090304][ T480] ? __kernfs_new_node+0xdb/0x6e0 [ 41.095393][ T480] __kernfs_new_node+0xdb/0x6e0 [ 41.100222][ T480] ? is_module_text_address+0xe1/0x140 [ 41.105662][ T480] ? kernfs_new_node+0x170/0x170 [ 41.110678][ T480] ? ptr_to_hashval+0x60/0x60 [ 41.115323][ T480] ? arch_stack_walk+0xf8/0x140 [ 41.120415][ T480] ? snprintf+0xd6/0x120 [ 41.124891][ T480] kernfs_new_node+0x97/0x170 [ 41.129539][ T480] __kernfs_create_file+0x4a/0x270 [ 41.134645][ T480] cgroup_addrm_files+0xab8/0xfe0 [ 41.139731][ T480] ? ____kasan_kmalloc+0xdc/0x110 [ 41.144754][ T480] ? __kasan_kmalloc+0x9/0x10 [ 41.149583][ T480] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 41.155114][ T480] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 41.161240][ T480] ? delete_node+0x759/0x7b0 [ 41.165825][ T480] ? __kasan_check_read+0x11/0x20 [ 41.170915][ T480] ? delete_node+0x759/0x7b0 [ 41.175604][ T480] ? __kasan_check_write+0x14/0x20 [ 41.180708][ T480] ? idr_replace+0x1c4/0x230 [ 41.185280][ T480] ? idr_get_next+0x4b0/0x4b0 [ 41.189933][ T480] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 41.195137][ T480] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 41.200333][ T480] css_populate_dir+0x137/0x370 [ 41.205221][ T480] cgroup_apply_control_enable+0x8b9/0x12f0 [ 41.211097][ T480] cgroup_apply_control+0x93/0x710 [ 41.216189][ T480] ? css_next_child+0x160/0x160 [ 41.221063][ T480] ? set_next_entity+0xc5/0x390 [ 41.225988][ T480] ? io_schedule+0x120/0x120 [ 41.230551][ T480] ? kernfs_fop_write_iter+0x15e/0x410 [ 41.235996][ T480] ? __kasan_check_write+0x14/0x20 [ 41.241254][ T480] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 41.246525][ T480] cgroup_subtree_control_write+0xd19/0x1310 [ 41.252481][ T480] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.258452][ T480] ? __kasan_check_write+0x14/0x20 [ 41.263550][ T480] ? _copy_from_iter+0x3fb/0xd60 [ 41.268581][ T480] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.274617][ T480] cgroup_file_write+0x28e/0x590 [ 41.279612][ T480] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.284703][ T480] ? mutex_lock+0xa6/0x110 [ 41.289186][ T480] ? mutex_trylock+0xb0/0xb0 [ 41.293749][ T480] ? __kasan_check_write+0x14/0x20 [ 41.298835][ T480] kernfs_fop_write_iter+0x2d0/0x410 [ 41.304197][ T480] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.309391][ T480] vfs_write+0xc1c/0xf40 [ 41.313624][ T480] ? kernel_write+0x3c0/0x3c0 [ 41.318312][ T480] ? mutex_trylock+0xb0/0xb0 [ 41.322891][ T480] ? __fdget_pos+0x26d/0x310 [ 41.327563][ T480] ? ksys_write+0x77/0x2c0 [ 41.331978][ T480] ksys_write+0x198/0x2c0 [ 41.336291][ T480] ? __ia32_sys_read+0x90/0x90 [ 41.341124][ T480] ? debug_smp_processor_id+0x17/0x20 [ 41.346466][ T480] __x64_sys_write+0x7b/0x90 [ 41.351029][ T480] do_syscall_64+0x34/0x70 [ 41.355416][ T480] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.361286][ T480] RIP: 0033:0x7f6d588ea0e9 [ 41.365697][ T480] 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 [ 41.385420][ T480] RSP: 002b:00007f6d5883f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 41.393995][ T480] RAX: ffffffffffffffda RBX: 00007f6d589fd030 RCX: 00007f6d588ea0e9 [ 41.401939][ T480] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 41.409881][ T480] RBP: 00007f6d5883f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.417948][ T480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.425966][ T480] R13: 00007fff407af90f R14: 00007f6d5883f300 R15: 0000000000022000 [ 41.437323][ T480] cgroup: cgroup_addrm_files: failed to add max, err=-12 2022/06/06 19:18:18 executed programs: 19 [ 41.444519][ T480] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.470987][ T389] !!!! css_release kill_css(ffff888110f1dc00) [ 41.477242][ T389] !!!! css_release kill_css(ffff888110f1e400) [ 41.483765][ T389] !!!! css_release kill_css(ffff888110f1cc00) [ 41.490071][ T488] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.491129][ T484] FAULT_INJECTION: forcing a failure. [ 41.491129][ T484] name failslab, interval 1, probability 0, space 0, times 0 [ 41.509519][ T484] CPU: 0 PID: 484 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 41.519650][ T484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.529692][ T484] Call Trace: [ 41.532963][ T484] dump_stack_lvl+0x1e2/0x24b [ 41.537628][ T484] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.543152][ T484] ? selinux_kernfs_init_security+0x1a8/0x760 [ 41.549197][ T484] dump_stack+0x15/0x17 [ 41.553328][ T484] should_fail+0x3c0/0x510 [ 41.557727][ T484] ? __kernfs_new_node+0x99/0x6e0 [ 41.562740][ T484] __should_failslab+0x9f/0xe0 [ 41.567579][ T484] should_failslab+0x9/0x20 [ 41.572244][ T484] __kmalloc_track_caller+0x5f/0x350 [ 41.577524][ T484] kstrdup_const+0x55/0x90 [ 41.581913][ T484] __kernfs_new_node+0x99/0x6e0 [ 41.586742][ T484] ? is_module_text_address+0xe1/0x140 [ 41.592192][ T484] ? kernfs_new_node+0x170/0x170 [ 41.597206][ T484] ? ptr_to_hashval+0x60/0x60 [ 41.601855][ T484] ? arch_stack_walk+0xf8/0x140 [ 41.606778][ T484] ? snprintf+0xd6/0x120 [ 41.610995][ T484] kernfs_new_node+0x97/0x170 [ 41.615643][ T484] __kernfs_create_file+0x4a/0x270 [ 41.620730][ T484] cgroup_addrm_files+0xab8/0xfe0 [ 41.625731][ T484] ? ____kasan_kmalloc+0xdc/0x110 [ 41.630726][ T484] ? __kasan_kmalloc+0x9/0x10 [ 41.635378][ T484] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 41.640895][ T484] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 41.647042][ T484] ? delete_node+0x759/0x7b0 [ 41.651621][ T484] ? __kasan_check_read+0x11/0x20 [ 41.656617][ T484] ? delete_node+0x759/0x7b0 [ 41.661326][ T484] ? __kasan_check_write+0x14/0x20 [ 41.666564][ T484] ? idr_replace+0x1c4/0x230 [ 41.671152][ T484] ? idr_get_next+0x4b0/0x4b0 [ 41.675803][ T484] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 41.681164][ T484] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 41.686348][ T484] css_populate_dir+0x137/0x370 [ 41.691195][ T484] cgroup_apply_control_enable+0x8b9/0x12f0 [ 41.697084][ T484] cgroup_apply_control+0x93/0x710 [ 41.702181][ T484] ? css_next_child+0x160/0x160 [ 41.707016][ T484] ? set_next_entity+0xc5/0x390 [ 41.711933][ T484] ? io_schedule+0x120/0x120 [ 41.716577][ T484] ? kernfs_fop_write_iter+0x15e/0x410 [ 41.722279][ T484] ? __kasan_check_write+0x14/0x20 [ 41.727456][ T484] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 41.732886][ T484] cgroup_subtree_control_write+0xd19/0x1310 [ 41.738841][ T484] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.744881][ T484] ? __kasan_check_write+0x14/0x20 [ 41.749972][ T484] ? _copy_from_iter+0x3fb/0xd60 [ 41.754910][ T484] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.760873][ T484] cgroup_file_write+0x28e/0x590 [ 41.765789][ T484] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.770876][ T484] ? mutex_lock+0xa6/0x110 [ 41.775271][ T484] ? mutex_trylock+0xb0/0xb0 [ 41.779836][ T484] ? __kasan_check_write+0x14/0x20 [ 41.784922][ T484] kernfs_fop_write_iter+0x2d0/0x410 [ 41.790188][ T484] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.795293][ T484] vfs_write+0xc1c/0xf40 [ 41.799648][ T484] ? kernel_write+0x3c0/0x3c0 [ 41.804328][ T484] ? mutex_trylock+0xb0/0xb0 [ 41.808910][ T484] ? __fdget_pos+0x26d/0x310 [ 41.813487][ T484] ? ksys_write+0x77/0x2c0 [ 41.818058][ T484] ksys_write+0x198/0x2c0 [ 41.822393][ T484] ? __ia32_sys_read+0x90/0x90 [ 41.827142][ T484] ? debug_smp_processor_id+0x17/0x20 [ 41.832502][ T484] __x64_sys_write+0x7b/0x90 [ 41.837166][ T484] do_syscall_64+0x34/0x70 [ 41.841587][ T484] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.847458][ T484] RIP: 0033:0x7f6c01dab0e9 [ 41.851852][ T484] 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 [ 41.871941][ T484] RSP: 002b:00007f6c01d00168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 41.880337][ T484] RAX: ffffffffffffffda RBX: 00007f6c01ebe030 RCX: 00007f6c01dab0e9 [ 41.888397][ T484] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 41.896408][ T484] RBP: 00007f6c01d001d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.904541][ T484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.912506][ T484] R13: 00007ffe3bc55f7f R14: 00007f6c01d00300 R15: 0000000000022000 [ 41.921551][ T484] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 41.928727][ T484] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.950935][ T68] !!!! css_release kill_css(ffff888111aa3800) [ 41.957484][ T68] !!!! css_release kill_css(ffff888111aa1400) [ 41.964141][ T68] !!!! css_release kill_css(ffff888111aa0800) [ 41.970415][ T493] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.970432][ T497] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.977741][ T493] FAULT_INJECTION: forcing a failure. [ 41.977741][ T493] name failslab, interval 1, probability 0, space 0, times 0 [ 41.996907][ T493] CPU: 1 PID: 493 Comm: syz-executor.4 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 42.007057][ T493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.017374][ T493] Call Trace: [ 42.020658][ T493] dump_stack_lvl+0x1e2/0x24b [ 42.025398][ T493] ? panic+0x7d7/0x7d7 [ 42.029442][ T493] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.034876][ T493] ? find_next_bit+0xd6/0x120 [ 42.039531][ T493] ? cpumask_next+0x11/0x30 [ 42.044027][ T493] dump_stack+0x15/0x17 [ 42.048335][ T493] should_fail+0x3c0/0x510 [ 42.052725][ T493] ? percpu_ref_init+0xd0/0x330 [ 42.057636][ T493] __should_failslab+0x9f/0xe0 [ 42.062462][ T493] should_failslab+0x9/0x20 [ 42.066946][ T493] kmem_cache_alloc_trace+0x3a/0x330 [ 42.072294][ T493] percpu_ref_init+0xd0/0x330 [ 42.077033][ T493] ? cgroup_setup_root+0xea0/0xea0 [ 42.082142][ T493] cgroup_apply_control_enable+0x3a2/0x12f0 [ 42.088008][ T493] cgroup_apply_control+0x93/0x710 [ 42.093159][ T493] ? css_next_child+0x160/0x160 [ 42.097984][ T493] ? io_schedule+0x120/0x120 [ 42.102636][ T493] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.108206][ T493] ? __kasan_check_write+0x14/0x20 [ 42.113294][ T493] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.118559][ T493] cgroup_subtree_control_write+0xd19/0x1310 [ 42.124516][ T493] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.130482][ T493] ? __kasan_check_write+0x14/0x20 [ 42.135841][ T493] ? _copy_from_iter+0x3fb/0xd60 [ 42.140758][ T493] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.146810][ T493] cgroup_file_write+0x28e/0x590 [ 42.151731][ T493] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.156996][ T493] ? mutex_lock+0xa6/0x110 [ 42.161396][ T493] ? mutex_trylock+0xb0/0xb0 [ 42.165967][ T493] ? __kasan_check_write+0x14/0x20 [ 42.171054][ T493] kernfs_fop_write_iter+0x2d0/0x410 [ 42.176325][ T493] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.181414][ T493] vfs_write+0xc1c/0xf40 [ 42.185757][ T493] ? kernel_write+0x3c0/0x3c0 [ 42.190511][ T493] ? mutex_trylock+0xb0/0xb0 [ 42.195075][ T493] ? __fdget_pos+0x26d/0x310 [ 42.199813][ T493] ? ksys_write+0x77/0x2c0 [ 42.204205][ T493] ksys_write+0x198/0x2c0 [ 42.208610][ T493] ? __ia32_sys_read+0x90/0x90 [ 42.213607][ T493] ? debug_smp_processor_id+0x17/0x20 [ 42.218964][ T493] __x64_sys_write+0x7b/0x90 [ 42.223620][ T493] do_syscall_64+0x34/0x70 [ 42.228013][ T493] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.233993][ T493] RIP: 0033:0x7fe78c1da0e9 [ 42.238472][ T493] 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 [ 42.258058][ T493] RSP: 002b:00007fe78c150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.266623][ T493] RAX: ffffffffffffffda RBX: 00007fe78c2ecf60 RCX: 00007fe78c1da0e9 [ 42.274790][ T493] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 42.282737][ T493] RBP: 00007fe78c1501d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.290778][ T493] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.298831][ T493] R13: 00007ffe83e0826f R14: 00007fe78c150300 R15: 0000000000022000 [ 42.308627][ T493] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.341064][ T461] !!!! css_release kill_css(ffff888111c79000) [ 42.347416][ T461] !!!! css_release kill_css(ffff888111c78c00) [ 42.354003][ T497] FAULT_INJECTION: forcing a failure. [ 42.354003][ T497] name failslab, interval 1, probability 0, space 0, times 0 [ 42.366893][ T497] CPU: 0 PID: 497 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 42.377018][ T497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.387177][ T497] Call Trace: [ 42.390464][ T497] dump_stack_lvl+0x1e2/0x24b [ 42.395116][ T497] ? panic+0x7d7/0x7d7 [ 42.399256][ T497] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.404714][ T497] ? find_next_bit+0xd6/0x120 [ 42.409368][ T497] ? cpumask_next+0x11/0x30 [ 42.413869][ T497] dump_stack+0x15/0x17 [ 42.418040][ T497] should_fail+0x3c0/0x510 [ 42.422533][ T497] ? percpu_ref_init+0xd0/0x330 [ 42.427512][ T497] __should_failslab+0x9f/0xe0 [ 42.432281][ T497] should_failslab+0x9/0x20 [ 42.436768][ T497] kmem_cache_alloc_trace+0x3a/0x330 [ 42.442404][ T497] percpu_ref_init+0xd0/0x330 [ 42.447158][ T497] ? cgroup_setup_root+0xea0/0xea0 [ 42.452245][ T497] cgroup_apply_control_enable+0x3a2/0x12f0 [ 42.458133][ T497] cgroup_apply_control+0x93/0x710 [ 42.463224][ T497] ? css_next_child+0x160/0x160 [ 42.468338][ T497] ? io_schedule+0x120/0x120 [ 42.473117][ T497] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.478563][ T497] ? __kasan_check_write+0x14/0x20 [ 42.483654][ T497] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.489016][ T497] cgroup_subtree_control_write+0xd19/0x1310 [ 42.495149][ T497] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.501121][ T497] ? __kasan_check_write+0x14/0x20 [ 42.506215][ T497] ? _copy_from_iter+0x3fb/0xd60 [ 42.511243][ T497] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.517473][ T497] cgroup_file_write+0x28e/0x590 [ 42.522658][ T497] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.527856][ T497] ? mutex_lock+0xa6/0x110 [ 42.532282][ T497] ? mutex_trylock+0xb0/0xb0 [ 42.536867][ T497] ? __kasan_check_write+0x14/0x20 [ 42.541981][ T497] kernfs_fop_write_iter+0x2d0/0x410 [ 42.547564][ T497] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.552660][ T497] vfs_write+0xc1c/0xf40 [ 42.556898][ T497] ? kernel_write+0x3c0/0x3c0 [ 42.561555][ T497] ? mutex_trylock+0xb0/0xb0 [ 42.566125][ T497] ? __fdget_pos+0x26d/0x310 [ 42.570704][ T497] ? ksys_write+0x77/0x2c0 [ 42.575097][ T497] ksys_write+0x198/0x2c0 [ 42.579426][ T497] ? __ia32_sys_read+0x90/0x90 [ 42.584167][ T497] ? debug_smp_processor_id+0x17/0x20 [ 42.589526][ T497] __x64_sys_write+0x7b/0x90 [ 42.594094][ T497] do_syscall_64+0x34/0x70 [ 42.598491][ T497] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.604557][ T497] RIP: 0033:0x7ff5e9f170e9 [ 42.608956][ T497] 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 [ 42.628632][ T497] RSP: 002b:00007ff5e9e8d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.637111][ T497] RAX: ffffffffffffffda RBX: 00007ff5ea029f60 RCX: 00007ff5e9f170e9 [ 42.645169][ T497] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 42.653214][ T497] RBP: 00007ff5e9e8d1d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.661172][ T497] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.669571][ T497] R13: 00007ffc4a28769f R14: 00007ff5e9e8d300 R15: 0000000000022000 [ 42.678964][ T497] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.694285][ T391] !!!! css_release kill_css(ffff888110c6bc00) [ 42.700624][ T391] !!!! css_release kill_css(ffff888110c68000) [ 42.707288][ T500] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.707444][ T490] FAULT_INJECTION: forcing a failure. [ 42.707444][ T490] name failslab, interval 1, probability 0, space 0, times 0 [ 42.726577][ T490] CPU: 1 PID: 490 Comm: syz-executor.5 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 42.736890][ T490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.747039][ T490] Call Trace: [ 42.750324][ T490] dump_stack_lvl+0x1e2/0x24b [ 42.754991][ T490] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.760467][ T490] ? selinux_kernfs_init_security+0x1a8/0x760 [ 42.766707][ T490] dump_stack+0x15/0x17 [ 42.770858][ T490] should_fail+0x3c0/0x510 [ 42.775268][ T490] ? __kernfs_new_node+0x99/0x6e0 [ 42.780303][ T490] __should_failslab+0x9f/0xe0 [ 42.785250][ T490] should_failslab+0x9/0x20 [ 42.789741][ T490] __kmalloc_track_caller+0x5f/0x350 [ 42.795013][ T490] kstrdup_const+0x55/0x90 [ 42.799406][ T490] __kernfs_new_node+0x99/0x6e0 [ 42.804273][ T490] ? is_module_text_address+0xe1/0x140 [ 42.809808][ T490] ? kernfs_new_node+0x170/0x170 [ 42.814723][ T490] ? ptr_to_hashval+0x60/0x60 [ 42.819399][ T490] ? arch_stack_walk+0xf8/0x140 [ 42.824229][ T490] ? snprintf+0xd6/0x120 [ 42.828461][ T490] kernfs_new_node+0x97/0x170 [ 42.833141][ T490] __kernfs_create_file+0x4a/0x270 [ 42.838244][ T490] cgroup_addrm_files+0xab8/0xfe0 [ 42.843272][ T490] ? ____kasan_kmalloc+0xdc/0x110 [ 42.848273][ T490] ? __kasan_kmalloc+0x9/0x10 [ 42.852948][ T490] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 42.858645][ T490] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 42.864962][ T490] ? delete_node+0x759/0x7b0 [ 42.869535][ T490] ? __kasan_check_read+0x11/0x20 [ 42.874690][ T490] ? delete_node+0x759/0x7b0 [ 42.879260][ T490] ? __kasan_check_write+0x14/0x20 [ 42.884363][ T490] ? idr_replace+0x1c4/0x230 [ 42.889075][ T490] ? idr_get_next+0x4b0/0x4b0 [ 42.893731][ T490] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 42.898732][ T490] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 42.905211][ T490] css_populate_dir+0x137/0x370 [ 42.910048][ T490] cgroup_apply_control_enable+0x8b9/0x12f0 [ 42.915926][ T490] cgroup_apply_control+0x93/0x710 [ 42.921043][ T490] ? css_next_child+0x160/0x160 [ 42.925892][ T490] ? dequeue_task_fair+0x7ad/0xb50 [ 42.931008][ T490] ? io_schedule+0x120/0x120 [ 42.935672][ T490] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.941129][ T490] ? __kasan_check_write+0x14/0x20 [ 42.946233][ T490] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.951557][ T490] cgroup_subtree_control_write+0xd19/0x1310 [ 42.957626][ T490] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.963879][ T490] ? __kasan_check_write+0x14/0x20 [ 42.969125][ T490] ? _copy_from_iter+0x3fb/0xd60 [ 42.974054][ T490] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.980022][ T490] cgroup_file_write+0x28e/0x590 [ 42.984946][ T490] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.990089][ T490] ? mutex_lock+0xa6/0x110 [ 42.994493][ T490] ? mutex_trylock+0xb0/0xb0 [ 42.999181][ T490] ? __kasan_check_write+0x14/0x20 [ 43.004424][ T490] kernfs_fop_write_iter+0x2d0/0x410 [ 43.009693][ T490] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.014814][ T490] vfs_write+0xc1c/0xf40 [ 43.019140][ T490] ? kernel_write+0x3c0/0x3c0 [ 43.023803][ T490] ? mutex_trylock+0xb0/0xb0 [ 43.028477][ T490] ? __fdget_pos+0x26d/0x310 [ 43.033137][ T490] ? ksys_write+0x77/0x2c0 [ 43.037532][ T490] ksys_write+0x198/0x2c0 [ 43.041858][ T490] ? __ia32_sys_read+0x90/0x90 [ 43.046697][ T490] ? debug_smp_processor_id+0x17/0x20 [ 43.052060][ T490] __x64_sys_write+0x7b/0x90 [ 43.056718][ T490] do_syscall_64+0x34/0x70 [ 43.061114][ T490] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.067103][ T490] RIP: 0033:0x7fe4108200e9 [ 43.071875][ T490] 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 [ 43.091501][ T490] RSP: 002b:00007fe410775168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 43.099898][ T490] RAX: ffffffffffffffda RBX: 00007fe410933030 RCX: 00007fe4108200e9 [ 43.107947][ T490] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 43.116005][ T490] RBP: 00007fe4107751d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.124044][ T490] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.132008][ T490] R13: 00007fffcdf413ef R14: 00007fe410775300 R15: 0000000000022000 [ 43.141596][ T490] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 43.144485][ T23] audit: type=1400 audit(1654543100.459:158): avc: denied { remove_name } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 43.148830][ T490] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.172190][ T23] audit: type=1400 audit(1654543100.459:159): avc: denied { rename } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 43.200473][ T23] audit: type=1400 audit(1654543100.459:160): avc: denied { create } for pid=142 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 43.200963][ T389] !!!! css_release kill_css(ffff888111f8c800) [ 43.230379][ T389] !!!! css_release kill_css(ffff888111f8d400) [ 43.237375][ T505] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.237474][ T512] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.244037][ T498] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.250729][ T503] FAULT_INJECTION: forcing a failure. [ 43.250729][ T503] name failslab, interval 1, probability 0, space 0, times 0 [ 43.270233][ T503] CPU: 0 PID: 503 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 43.280486][ T503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.290611][ T503] Call Trace: [ 43.293909][ T503] dump_stack_lvl+0x1e2/0x24b [ 43.298586][ T503] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.304051][ T503] ? selinux_kernfs_init_security+0x1a8/0x760 [ 43.310100][ T503] dump_stack+0x15/0x17 [ 43.314262][ T503] should_fail+0x3c0/0x510 [ 43.318674][ T503] ? __kernfs_new_node+0x99/0x6e0 [ 43.323740][ T503] __should_failslab+0x9f/0xe0 [ 43.328486][ T503] should_failslab+0x9/0x20 [ 43.332975][ T503] __kmalloc_track_caller+0x5f/0x350 [ 43.338252][ T503] kstrdup_const+0x55/0x90 [ 43.342758][ T503] __kernfs_new_node+0x99/0x6e0 [ 43.347683][ T503] ? is_module_text_address+0xe1/0x140 [ 43.353132][ T503] ? kernfs_new_node+0x170/0x170 [ 43.358049][ T503] ? ptr_to_hashval+0x60/0x60 [ 43.362994][ T503] ? arch_stack_walk+0xf8/0x140 [ 43.367918][ T503] ? snprintf+0xd6/0x120 [ 43.372155][ T503] kernfs_new_node+0x97/0x170 [ 43.376899][ T503] __kernfs_create_file+0x4a/0x270 [ 43.382185][ T503] cgroup_addrm_files+0xab8/0xfe0 [ 43.387203][ T503] ? ____kasan_kmalloc+0xdc/0x110 [ 43.392204][ T503] ? __kasan_kmalloc+0x9/0x10 [ 43.396952][ T503] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 43.402596][ T503] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 43.409103][ T503] ? delete_node+0x759/0x7b0 [ 43.413681][ T503] ? __kasan_check_read+0x11/0x20 [ 43.418686][ T503] ? delete_node+0x759/0x7b0 [ 43.423295][ T503] ? __kasan_check_write+0x14/0x20 [ 43.428399][ T503] ? idr_replace+0x1c4/0x230 [ 43.432980][ T503] ? idr_get_next+0x4b0/0x4b0 [ 43.437662][ T503] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 43.442773][ T503] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 43.447960][ T503] css_populate_dir+0x137/0x370 [ 43.452803][ T503] cgroup_apply_control_enable+0x8b9/0x12f0 [ 43.458700][ T503] cgroup_apply_control+0x93/0x710 [ 43.463795][ T503] ? css_next_child+0x160/0x160 [ 43.468630][ T503] ? set_next_entity+0xc5/0x390 [ 43.473468][ T503] ? io_schedule+0x120/0x120 [ 43.478047][ T503] ? kernfs_fop_write_iter+0x15e/0x410 [ 43.483494][ T503] ? __kasan_check_write+0x14/0x20 [ 43.488590][ T503] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 43.493857][ T503] cgroup_subtree_control_write+0xd19/0x1310 [ 43.499907][ T503] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.505889][ T503] ? __kasan_check_write+0x14/0x20 [ 43.510982][ T503] ? _copy_from_iter+0x3fb/0xd60 [ 43.516010][ T503] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.522086][ T503] cgroup_file_write+0x28e/0x590 [ 43.527015][ T503] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.532247][ T503] ? mutex_lock+0xa6/0x110 [ 43.536677][ T503] ? mutex_trylock+0xb0/0xb0 [ 43.541270][ T503] ? __kasan_check_write+0x14/0x20 [ 43.546537][ T503] kernfs_fop_write_iter+0x2d0/0x410 [ 43.551829][ T503] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.557022][ T503] vfs_write+0xc1c/0xf40 [ 43.561263][ T503] ? kernel_write+0x3c0/0x3c0 [ 43.565989][ T503] ? mutex_trylock+0xb0/0xb0 [ 43.571048][ T503] ? __fdget_pos+0x26d/0x310 [ 43.575717][ T503] ? ksys_write+0x77/0x2c0 [ 43.580136][ T503] ksys_write+0x198/0x2c0 [ 43.584712][ T503] ? __ia32_sys_read+0x90/0x90 [ 43.589576][ T503] ? debug_smp_processor_id+0x17/0x20 [ 43.594945][ T503] __x64_sys_write+0x7b/0x90 [ 43.599617][ T503] do_syscall_64+0x34/0x70 [ 43.604016][ T503] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.609895][ T503] RIP: 0033:0x7f6c01dab0e9 [ 43.614381][ T503] 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 [ 43.634325][ T503] RSP: 002b:00007f6c01d00168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 43.642892][ T503] RAX: ffffffffffffffda RBX: 00007f6c01ebe030 RCX: 00007f6c01dab0e9 [ 43.650852][ T503] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 43.658979][ T503] RBP: 00007f6c01d001d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.667054][ T503] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.675099][ T503] R13: 00007ffe3bc55f7f R14: 00007f6c01d00300 R15: 0000000000022000 [ 43.683787][ T503] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 43.691000][ T503] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.731387][ T391] !!!! css_release kill_css(ffff888112007c00) [ 43.737773][ T391] !!!! css_release kill_css(ffff888112004000) [ 43.744209][ T391] !!!! css_release kill_css(ffff888112007800) [ 43.750582][ T518] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.750720][ T502] FAULT_INJECTION: forcing a failure. [ 43.750720][ T502] name failslab, interval 1, probability 0, space 0, times 0 [ 43.770141][ T502] CPU: 1 PID: 502 Comm: syz-executor.1 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 43.781580][ T502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.791618][ T502] Call Trace: [ 43.794988][ T502] dump_stack_lvl+0x1e2/0x24b [ 43.799761][ T502] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.805310][ T502] ? selinux_kernfs_init_security+0x1a8/0x760 [ 43.811372][ T502] dump_stack+0x15/0x17 [ 43.815954][ T502] should_fail+0x3c0/0x510 [ 43.820397][ T502] ? __kernfs_new_node+0x99/0x6e0 [ 43.825490][ T502] __should_failslab+0x9f/0xe0 [ 43.830253][ T502] should_failslab+0x9/0x20 [ 43.834834][ T502] __kmalloc_track_caller+0x5f/0x350 [ 43.840444][ T502] kstrdup_const+0x55/0x90 [ 43.844858][ T502] __kernfs_new_node+0x99/0x6e0 [ 43.849702][ T502] ? is_module_text_address+0xe1/0x140 [ 43.855185][ T502] ? kernfs_new_node+0x170/0x170 [ 43.860108][ T502] ? ptr_to_hashval+0x60/0x60 [ 43.864767][ T502] ? arch_stack_walk+0xf8/0x140 [ 43.869610][ T502] ? snprintf+0xd6/0x120 [ 43.873832][ T502] kernfs_new_node+0x97/0x170 [ 43.878488][ T502] __kernfs_create_file+0x4a/0x270 [ 43.883686][ T502] cgroup_addrm_files+0xab8/0xfe0 [ 43.888710][ T502] ? ____kasan_kmalloc+0xdc/0x110 [ 43.893782][ T502] ? __kasan_kmalloc+0x9/0x10 [ 43.898442][ T502] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 43.904000][ T502] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 43.910661][ T502] ? delete_node+0x759/0x7b0 [ 43.915241][ T502] ? __kasan_check_read+0x11/0x20 [ 43.920335][ T502] ? delete_node+0x759/0x7b0 [ 43.924906][ T502] ? __kasan_check_write+0x14/0x20 [ 43.930013][ T502] ? idr_replace+0x1c4/0x230 [ 43.934897][ T502] ? idr_get_next+0x4b0/0x4b0 [ 43.939667][ T502] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 43.944790][ T502] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 43.949991][ T502] css_populate_dir+0x137/0x370 [ 43.954966][ T502] cgroup_apply_control_enable+0x8b9/0x12f0 [ 43.960867][ T502] cgroup_apply_control+0x93/0x710 [ 43.966003][ T502] ? css_next_child+0x160/0x160 [ 43.970973][ T502] ? set_next_entity+0xc5/0x390 [ 43.975847][ T502] ? io_schedule+0x120/0x120 [ 43.980516][ T502] ? kernfs_fop_write_iter+0x15e/0x410 [ 43.986203][ T502] ? __kasan_check_write+0x14/0x20 [ 43.991310][ T502] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 43.996698][ T502] cgroup_subtree_control_write+0xd19/0x1310 [ 44.002765][ T502] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.008742][ T502] ? __kasan_check_write+0x14/0x20 [ 44.013970][ T502] ? _copy_from_iter+0x3fb/0xd60 [ 44.018899][ T502] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.025042][ T502] cgroup_file_write+0x28e/0x590 [ 44.029991][ T502] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.035111][ T502] ? mutex_lock+0xa6/0x110 [ 44.039513][ T502] ? mutex_trylock+0xb0/0xb0 [ 44.044092][ T502] ? __kasan_check_write+0x14/0x20 [ 44.049186][ T502] kernfs_fop_write_iter+0x2d0/0x410 [ 44.054466][ T502] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.059756][ T502] vfs_write+0xc1c/0xf40 [ 44.064091][ T502] ? kernel_write+0x3c0/0x3c0 [ 44.068862][ T502] ? mutex_trylock+0xb0/0xb0 [ 44.073453][ T502] ? __fdget_pos+0x26d/0x310 [ 44.078040][ T502] ? ksys_write+0x77/0x2c0 [ 44.082606][ T502] ksys_write+0x198/0x2c0 [ 44.086924][ T502] ? __ia32_sys_read+0x90/0x90 [ 44.091674][ T502] ? debug_smp_processor_id+0x17/0x20 [ 44.097129][ T502] __x64_sys_write+0x7b/0x90 [ 44.101702][ T502] do_syscall_64+0x34/0x70 [ 44.106097][ T502] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.111966][ T502] RIP: 0033:0x7f6d588ea0e9 [ 44.116443][ T502] 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 [ 44.136031][ T502] RSP: 002b:00007f6d5883f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 44.144431][ T502] RAX: ffffffffffffffda RBX: 00007f6d589fd030 RCX: 00007f6d588ea0e9 [ 44.152383][ T502] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 44.160330][ T502] RBP: 00007f6d5883f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.168281][ T502] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.176230][ T502] R13: 00007fff407af90f R14: 00007f6d5883f300 R15: 0000000000022000 [ 44.184688][ T502] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 44.191966][ T502] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.211055][ T389] !!!! css_release kill_css(ffff888112059800) [ 44.217440][ T389] !!!! css_release kill_css(ffff88811205a000) [ 44.223952][ T389] !!!! css_release kill_css(ffff888112058400) [ 44.230368][ T517] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.230491][ T512] FAULT_INJECTION: forcing a failure. [ 44.230491][ T512] name failslab, interval 1, probability 0, space 0, times 0 [ 44.249617][ T512] CPU: 1 PID: 512 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 44.265461][ T512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.275534][ T512] Call Trace: [ 44.278823][ T512] dump_stack_lvl+0x1e2/0x24b [ 44.283847][ T512] ? panic+0x7d7/0x7d7 [ 44.287907][ T512] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.293531][ T512] ? find_next_bit+0xd6/0x120 [ 44.298373][ T512] ? cpumask_next+0x11/0x30 [ 44.302867][ T512] dump_stack+0x15/0x17 [ 44.307011][ T512] should_fail+0x3c0/0x510 [ 44.311409][ T512] ? percpu_ref_init+0xd0/0x330 [ 44.316239][ T512] __should_failslab+0x9f/0xe0 [ 44.321068][ T512] should_failslab+0x9/0x20 [ 44.325569][ T512] kmem_cache_alloc_trace+0x3a/0x330 [ 44.330922][ T512] percpu_ref_init+0xd0/0x330 [ 44.335674][ T512] ? cgroup_setup_root+0xea0/0xea0 [ 44.340767][ T512] cgroup_apply_control_enable+0x3a2/0x12f0 [ 44.346901][ T512] cgroup_apply_control+0x93/0x710 [ 44.352087][ T512] ? css_next_child+0x160/0x160 [ 44.356926][ T512] ? io_schedule+0x120/0x120 [ 44.361503][ T512] ? kernfs_fop_write_iter+0x15e/0x410 [ 44.367140][ T512] ? __kasan_check_write+0x14/0x20 [ 44.372497][ T512] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 44.377857][ T512] cgroup_subtree_control_write+0xd19/0x1310 [ 44.383821][ T512] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.389788][ T512] ? __kasan_check_write+0x14/0x20 [ 44.394933][ T512] ? _copy_from_iter+0x3fb/0xd60 [ 44.399856][ T512] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.406264][ T512] cgroup_file_write+0x28e/0x590 [ 44.411347][ T512] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.416549][ T512] ? mutex_lock+0xa6/0x110 [ 44.420953][ T512] ? mutex_trylock+0xb0/0xb0 [ 44.425539][ T512] ? __kasan_check_write+0x14/0x20 [ 44.430630][ T512] kernfs_fop_write_iter+0x2d0/0x410 [ 44.435910][ T512] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.441023][ T512] vfs_write+0xc1c/0xf40 [ 44.445263][ T512] ? kernel_write+0x3c0/0x3c0 [ 44.449918][ T512] ? mutex_trylock+0xb0/0xb0 [ 44.454520][ T512] ? __fdget_pos+0x26d/0x310 [ 44.459088][ T512] ? ksys_write+0x77/0x2c0 [ 44.463489][ T512] ksys_write+0x198/0x2c0 [ 44.467801][ T512] ? __ia32_sys_read+0x90/0x90 [ 44.472543][ T512] ? debug_smp_processor_id+0x17/0x20 [ 44.477904][ T512] __x64_sys_write+0x7b/0x90 [ 44.482498][ T512] do_syscall_64+0x34/0x70 [ 44.486989][ T512] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.492962][ T512] RIP: 0033:0x7ff5e9f170e9 [ 44.497363][ T512] 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 [ 44.517140][ T512] RSP: 002b:00007ff5e9e8d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 44.525542][ T512] RAX: ffffffffffffffda RBX: 00007ff5ea029f60 RCX: 00007ff5e9f170e9 [ 44.533496][ T512] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 44.541465][ T512] RBP: 00007ff5e9e8d1d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.549532][ T512] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.557598][ T512] R13: 00007ffc4a28769f R14: 00007ff5e9e8d300 R15: 0000000000022000 [ 44.566743][ T512] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.611182][ T390] !!!! css_release kill_css(ffff88811229e400) [ 44.617772][ T390] !!!! css_release kill_css(ffff88811229dc00) [ 44.624398][ T524] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.624676][ T519] FAULT_INJECTION: forcing a failure. [ 44.624676][ T519] name failslab, interval 1, probability 0, space 0, times 0 [ 44.643852][ T519] CPU: 1 PID: 519 Comm: syz-executor.5 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 44.654095][ T519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.664325][ T519] Call Trace: [ 44.667602][ T519] dump_stack_lvl+0x1e2/0x24b [ 44.672260][ T519] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.677726][ T519] ? selinux_kernfs_init_security+0x1a8/0x760 [ 44.683867][ T519] dump_stack+0x15/0x17 [ 44.688108][ T519] should_fail+0x3c0/0x510 [ 44.692507][ T519] ? __kernfs_new_node+0x99/0x6e0 [ 44.697521][ T519] __should_failslab+0x9f/0xe0 [ 44.702400][ T519] should_failslab+0x9/0x20 [ 44.706885][ T519] __kmalloc_track_caller+0x5f/0x350 [ 44.712157][ T519] kstrdup_const+0x55/0x90 [ 44.716558][ T519] __kernfs_new_node+0x99/0x6e0 [ 44.721396][ T519] ? is_module_text_address+0xe1/0x140 [ 44.726831][ T519] ? kernfs_new_node+0x170/0x170 [ 44.731844][ T519] ? ptr_to_hashval+0x60/0x60 [ 44.736519][ T519] ? arch_stack_walk+0xf8/0x140 [ 44.741362][ T519] ? snprintf+0xd6/0x120 [ 44.745764][ T519] kernfs_new_node+0x97/0x170 [ 44.750421][ T519] __kernfs_create_file+0x4a/0x270 [ 44.755509][ T519] cgroup_addrm_files+0xab8/0xfe0 [ 44.760508][ T519] ? ____kasan_kmalloc+0xdc/0x110 [ 44.765509][ T519] ? __kasan_kmalloc+0x9/0x10 [ 44.770161][ T519] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 44.775811][ T519] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 44.782117][ T519] ? delete_node+0x759/0x7b0 [ 44.786684][ T519] ? __kasan_check_read+0x11/0x20 [ 44.791873][ T519] ? delete_node+0x759/0x7b0 [ 44.796438][ T519] ? __kasan_check_write+0x14/0x20 [ 44.801525][ T519] ? idr_replace+0x1c4/0x230 [ 44.806112][ T519] ? idr_get_next+0x4b0/0x4b0 [ 44.810770][ T519] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 44.815785][ T519] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 44.820990][ T519] css_populate_dir+0x137/0x370 [ 44.825904][ T519] cgroup_apply_control_enable+0x8b9/0x12f0 [ 44.831870][ T519] cgroup_apply_control+0x93/0x710 [ 44.836971][ T519] ? css_next_child+0x160/0x160 [ 44.841813][ T519] ? set_next_entity+0xc5/0x390 [ 44.846761][ T519] ? io_schedule+0x120/0x120 [ 44.851330][ T519] ? kernfs_fop_write_iter+0x15e/0x410 [ 44.856770][ T519] ? __kasan_check_write+0x14/0x20 [ 44.861865][ T519] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 44.867132][ T519] cgroup_subtree_control_write+0xd19/0x1310 [ 44.873124][ T519] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.879171][ T519] ? __kasan_check_write+0x14/0x20 [ 44.884345][ T519] ? _copy_from_iter+0x3fb/0xd60 [ 44.889260][ T519] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.895229][ T519] cgroup_file_write+0x28e/0x590 [ 44.900251][ T519] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.905482][ T519] ? mutex_lock+0xa6/0x110 [ 44.910084][ T519] ? mutex_trylock+0xb0/0xb0 [ 44.914668][ T519] ? __kasan_check_write+0x14/0x20 [ 44.922984][ T519] kernfs_fop_write_iter+0x2d0/0x410 [ 44.928249][ T519] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.933427][ T519] vfs_write+0xc1c/0xf40 [ 44.937911][ T519] ? kernel_write+0x3c0/0x3c0 [ 44.942573][ T519] ? mutex_trylock+0xb0/0xb0 [ 44.947155][ T519] ? __fdget_pos+0x26d/0x310 [ 44.951721][ T519] ? ksys_write+0x77/0x2c0 [ 44.956141][ T519] ksys_write+0x198/0x2c0 [ 44.960452][ T519] ? __ia32_sys_read+0x90/0x90 [ 44.965320][ T519] ? debug_smp_processor_id+0x17/0x20 [ 44.970757][ T519] __x64_sys_write+0x7b/0x90 [ 44.975478][ T519] do_syscall_64+0x34/0x70 [ 44.979884][ T519] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.985845][ T519] RIP: 0033:0x7fe4108200e9 [ 44.990591][ T519] 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 [ 45.010551][ T519] RSP: 002b:00007fe410775168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.018939][ T519] RAX: ffffffffffffffda RBX: 00007fe410933030 RCX: 00007fe4108200e9 [ 45.026902][ T519] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 45.034956][ T519] RBP: 00007fe4107751d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.043028][ T519] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.051051][ T519] R13: 00007fffcdf413ef R14: 00007fe410775300 R15: 0000000000022000 [ 45.059865][ T519] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 45.067519][ T519] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.091328][ T461] !!!! css_release kill_css(ffff88811180c800) [ 45.097728][ T461] !!!! css_release kill_css(ffff888111f89400) [ 45.104344][ T461] !!!! css_release kill_css(ffff888110949000) [ 45.110702][ T518] FAULT_INJECTION: forcing a failure. [ 45.110702][ T518] name failslab, interval 1, probability 0, space 0, times 0 [ 45.123718][ T518] CPU: 0 PID: 518 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 45.134201][ T518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.144895][ T518] Call Trace: [ 45.148173][ T518] dump_stack_lvl+0x1e2/0x24b [ 45.152851][ T518] ? panic+0x7d7/0x7d7 [ 45.156903][ T518] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.162452][ T518] ? find_next_bit+0xd6/0x120 [ 45.167126][ T518] ? cpumask_next+0x11/0x30 [ 45.171968][ T518] dump_stack+0x15/0x17 [ 45.176148][ T518] should_fail+0x3c0/0x510 [ 45.180559][ T518] ? percpu_ref_init+0xd0/0x330 [ 45.185483][ T518] __should_failslab+0x9f/0xe0 [ 45.190316][ T518] should_failslab+0x9/0x20 [ 45.194814][ T518] kmem_cache_alloc_trace+0x3a/0x330 [ 45.200081][ T518] percpu_ref_init+0xd0/0x330 [ 45.204746][ T518] ? cgroup_setup_root+0xea0/0xea0 [ 45.210067][ T518] cgroup_apply_control_enable+0x3a2/0x12f0 [ 45.215956][ T518] cgroup_apply_control+0x93/0x710 [ 45.221228][ T518] ? css_next_child+0x160/0x160 [ 45.226094][ T518] ? io_schedule+0x120/0x120 [ 45.230663][ T518] ? kernfs_fop_write_iter+0x15e/0x410 [ 45.236194][ T518] ? __kasan_check_write+0x14/0x20 [ 45.241284][ T518] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 45.246546][ T518] cgroup_subtree_control_write+0xd19/0x1310 [ 45.252502][ T518] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.258459][ T518] ? __kasan_check_write+0x14/0x20 [ 45.263833][ T518] ? _copy_from_iter+0x3fb/0xd60 [ 45.268766][ T518] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.275035][ T518] cgroup_file_write+0x28e/0x590 [ 45.280047][ T518] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.285278][ T518] ? mutex_lock+0xa6/0x110 [ 45.289672][ T518] ? mutex_trylock+0xb0/0xb0 [ 45.294409][ T518] ? __kasan_check_write+0x14/0x20 [ 45.299739][ T518] kernfs_fop_write_iter+0x2d0/0x410 [ 45.305220][ T518] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.310342][ T518] vfs_write+0xc1c/0xf40 [ 45.314585][ T518] ? kernel_write+0x3c0/0x3c0 [ 45.319348][ T518] ? mutex_trylock+0xb0/0xb0 [ 45.324139][ T518] ? __fdget_pos+0x26d/0x310 [ 45.328758][ T518] ? ksys_write+0x77/0x2c0 [ 45.333168][ T518] ksys_write+0x198/0x2c0 [ 45.337488][ T518] ? __ia32_sys_read+0x90/0x90 [ 45.342243][ T518] ? debug_smp_processor_id+0x17/0x20 [ 45.347597][ T518] __x64_sys_write+0x7b/0x90 [ 45.352196][ T518] do_syscall_64+0x34/0x70 [ 45.356594][ T518] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.362481][ T518] RIP: 0033:0x7f6c01dab0e9 [ 45.366890][ T518] 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 [ 45.386480][ T518] RSP: 002b:00007f6c01d21168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.394875][ T518] RAX: ffffffffffffffda RBX: 00007f6c01ebdf60 RCX: 00007f6c01dab0e9 [ 45.402832][ T518] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 45.411137][ T518] RBP: 00007f6c01d211d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.419278][ T518] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.427430][ T518] R13: 00007ffe3bc55f7f R14: 00007f6c01d21300 R15: 0000000000022000 [ 45.436033][ T518] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.470977][ T390] !!!! css_release kill_css(ffff88811255b400) [ 45.477282][ T390] !!!! css_release kill_css(ffff888112559000) [ 45.483775][ T506] FAULT_INJECTION: forcing a failure. [ 45.483775][ T506] name failslab, interval 1, probability 0, space 0, times 0 [ 45.496609][ T506] CPU: 1 PID: 506 Comm: syz-executor.4 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 45.506846][ T506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.516900][ T506] Call Trace: [ 45.520174][ T506] dump_stack_lvl+0x1e2/0x24b [ 45.524846][ T506] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.530378][ T506] ? selinux_kernfs_init_security+0x1a8/0x760 [ 45.536435][ T506] dump_stack+0x15/0x17 [ 45.540573][ T506] should_fail+0x3c0/0x510 [ 45.544970][ T506] ? __kernfs_new_node+0x99/0x6e0 [ 45.550051][ T506] __should_failslab+0x9f/0xe0 [ 45.554817][ T506] should_failslab+0x9/0x20 [ 45.559483][ T506] __kmalloc_track_caller+0x5f/0x350 [ 45.564859][ T506] kstrdup_const+0x55/0x90 [ 45.569270][ T506] __kernfs_new_node+0x99/0x6e0 [ 45.574118][ T506] ? is_module_text_address+0xe1/0x140 [ 45.579568][ T506] ? kernfs_new_node+0x170/0x170 [ 45.584489][ T506] ? ptr_to_hashval+0x60/0x60 [ 45.589142][ T506] ? arch_stack_walk+0xf8/0x140 [ 45.594040][ T506] ? snprintf+0xd6/0x120 [ 45.598353][ T506] kernfs_new_node+0x97/0x170 [ 45.603370][ T506] __kernfs_create_file+0x4a/0x270 [ 45.608496][ T506] cgroup_addrm_files+0xab8/0xfe0 [ 45.613839][ T506] ? ____kasan_kmalloc+0xdc/0x110 [ 45.619074][ T506] ? __kasan_kmalloc+0x9/0x10 [ 45.623749][ T506] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 45.629285][ T506] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 45.635420][ T506] ? delete_node+0x759/0x7b0 [ 45.640058][ T506] ? __kasan_check_read+0x11/0x20 [ 45.645172][ T506] ? delete_node+0x759/0x7b0 [ 45.649900][ T506] ? __kasan_check_write+0x14/0x20 [ 45.655014][ T506] ? idr_replace+0x1c4/0x230 [ 45.659588][ T506] ? idr_get_next+0x4b0/0x4b0 [ 45.664261][ T506] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 45.669267][ T506] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 45.674531][ T506] css_populate_dir+0x137/0x370 [ 45.679369][ T506] cgroup_apply_control_enable+0x8b9/0x12f0 [ 45.685331][ T506] cgroup_apply_control+0x93/0x710 [ 45.690447][ T506] ? css_next_child+0x160/0x160 [ 45.695289][ T506] ? set_next_entity+0xc5/0x390 [ 45.700206][ T506] ? io_schedule+0x120/0x120 [ 45.704781][ T506] ? kernfs_fop_write_iter+0x15e/0x410 [ 45.710440][ T506] ? __kasan_check_write+0x14/0x20 [ 45.715532][ T506] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 45.720886][ T506] cgroup_subtree_control_write+0xd19/0x1310 [ 45.726848][ T506] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.732979][ T506] ? __kasan_check_write+0x14/0x20 [ 45.738067][ T506] ? _copy_from_iter+0x3fb/0xd60 [ 45.743107][ T506] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.749175][ T506] cgroup_file_write+0x28e/0x590 [ 45.754115][ T506] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.759225][ T506] ? mutex_lock+0xa6/0x110 [ 45.763705][ T506] ? mutex_trylock+0xb0/0xb0 [ 45.768712][ T506] ? __kasan_check_write+0x14/0x20 [ 45.773886][ T506] kernfs_fop_write_iter+0x2d0/0x410 [ 45.779349][ T506] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.784466][ T506] vfs_write+0xc1c/0xf40 [ 45.788694][ T506] ? kernel_write+0x3c0/0x3c0 [ 45.793448][ T506] ? mutex_trylock+0xb0/0xb0 [ 45.798040][ T506] ? __fdget_pos+0x26d/0x310 [ 45.802605][ T506] ? ksys_write+0x77/0x2c0 [ 45.807126][ T506] ksys_write+0x198/0x2c0 [ 45.811448][ T506] ? __ia32_sys_read+0x90/0x90 [ 45.816235][ T506] ? debug_smp_processor_id+0x17/0x20 [ 45.821595][ T506] __x64_sys_write+0x7b/0x90 [ 45.826170][ T506] do_syscall_64+0x34/0x70 [ 45.830586][ T506] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.836459][ T506] RIP: 0033:0x7fe78c1da0e9 [ 45.840857][ T506] 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 [ 45.860717][ T506] RSP: 002b:00007fe78c12f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.869616][ T506] RAX: ffffffffffffffda RBX: 00007fe78c2ed030 RCX: 00007fe78c1da0e9 [ 45.877727][ T506] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 45.886328][ T506] RBP: 00007fe78c12f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.894541][ T506] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.902706][ T506] R13: 00007ffe83e0826f R14: 00007fe78c12f300 R15: 0000000000022000 [ 45.910867][ T506] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 45.918280][ T506] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.926255][ T430] ------------[ cut here ]------------ [ 45.932067][ T430] WARNING: CPU: 0 PID: 430 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 45.941041][ T430] Modules linked in: [ 45.945201][ T430] CPU: 0 PID: 430 Comm: syz-executor.4 Not tainted 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 45.955355][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.965423][ T430] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 45.971071][ T430] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 45.990782][ T430] RSP: 0018:ffffc90000f67ba0 EFLAGS: 00010293 [ 45.997081][ T430] RAX: ffffffff81b68b0a RBX: 00000000ffffffff RCX: ffff88810c6abb40 [ 46.005177][ T430] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 46.013190][ T430] RBP: ffffc90000f67c70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 46.021365][ T430] R10: fffff520001ecf65 R11: 1ffff920001ecf64 R12: dffffc0000000000 [ 46.029421][ T430] R13: ffff888110870fc0 R14: ffffc90000f67c00 R15: 1ffff920001ecf7c [ 46.037404][ T430] FS: 00005555567b2400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 46.046351][ T430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.053367][ T430] CR2: 00005555574f3b38 CR3: 000000010a0d4000 CR4: 00000000003506b0 [ 46.061394][ T430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.069812][ T430] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.077919][ T430] Call Trace: [ 46.081223][ T430] ? io_schedule+0x120/0x120 [ 46.085795][ T430] ? vfs_submount+0xb0/0xb0 [ 46.090286][ T430] ? shrink_dentry_list+0x4ec/0x500 [ 46.095512][ T430] namespace_unlock+0x448/0x4f0 [ 46.100563][ T430] ? umount_tree+0xf50/0xf50 [ 46.105211][ T430] ? __detach_mounts+0x670/0x670 [ 46.110157][ T430] ? selinux_umount+0xf0/0x130 [ 46.114959][ T430] path_umount+0xf03/0xfb0 [ 46.119566][ T430] ? namespace_unlock+0x4f0/0x4f0 [ 46.124800][ T430] ? user_path_at_empty+0x40/0x50 [ 46.130153][ T430] __x64_sys_umount+0x122/0x170 [ 46.135188][ T430] ? path_umount+0xfb0/0xfb0 [ 46.139868][ T430] ? debug_smp_processor_id+0x17/0x20 [ 46.145292][ T430] do_syscall_64+0x34/0x70 [ 46.149714][ T430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.155645][ T430] RIP: 0033:0x7fe78c1db557 [ 46.160057][ T430] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.179683][ T430] RSP: 002b:00007ffe83e073c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 46.188143][ T430] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe78c1db557 [ 46.196140][ T430] RDX: 00007ffe83e07499 RSI: 000000000000000a RDI: 00007ffe83e07490 [ 46.204131][ T430] RBP: 00007ffe83e07490 R08: 00000000ffffffff R09: 00007ffe83e07260 [ 46.212180][ T430] R10: 00005555567b3ba3 R11: 0000000000000246 R12: 00007fe78c2331f8 [ 46.220678][ T430] R13: 00007ffe83e08550 R14: 00005555567b3b00 R15: 00007ffe83e08590 [ 46.228684][ T430] ---[ end trace 9cc038e294c8c14b ]--- [ 46.234389][ T430] ------------[ cut here ]------------ [ 46.240216][ T430] WARNING: CPU: 0 PID: 430 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 46.249191][ T430] Modules linked in: [ 46.254066][ T430] CPU: 0 PID: 430 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 46.265706][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.275968][ T430] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 46.281778][ T430] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 46.301830][ T430] RSP: 0018:ffffc90000f67ca0 EFLAGS: 00010293 [ 46.307890][ T430] RAX: ffffffff81b68b0a RBX: 00000000fffffffe RCX: ffff88810c6abb40 [ 46.315893][ T430] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 46.323888][ T430] RBP: ffffc90000f67d70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 46.331897][ T430] R10: fffff520001ecf85 R11: 1ffff920001ecf84 R12: dffffc0000000000 [ 46.339877][ T430] R13: ffff888110870fc0 R14: ffffc90000f67d00 R15: 1ffff920001ecf9c [ 46.347899][ T430] FS: 00005555567b2400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 46.356884][ T430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.363492][ T430] CR2: 00005555574f3b38 CR3: 000000010a0d4000 CR4: 00000000003506b0 [ 46.371540][ T430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.379828][ T430] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.387815][ T430] Call Trace: [ 46.391294][ T430] ? lockref_get_or_lock+0x340/0x340 [ 46.396904][ T430] ? umount_tree+0xf50/0xf50 [ 46.401599][ T430] ? vfs_submount+0xb0/0xb0 [ 46.406198][ T430] ? dput+0x2b6/0x320 [ 46.410187][ T430] path_umount+0x1fe/0xfb0 [ 46.414851][ T430] ? namespace_unlock+0x4f0/0x4f0 [ 46.419895][ T430] ? user_path_at_empty+0x40/0x50 [ 46.425059][ T430] __x64_sys_umount+0x122/0x170 [ 46.429934][ T430] ? path_umount+0xfb0/0xfb0 [ 46.434574][ T430] ? debug_smp_processor_id+0x17/0x20 [ 46.439957][ T430] do_syscall_64+0x34/0x70 [ 46.444394][ T430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.450280][ T430] RIP: 0033:0x7fe78c1db557 [ 46.454724][ T430] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.474473][ T430] RSP: 002b:00007ffe83e073c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 46.483012][ T430] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe78c1db557 [ 46.491010][ T430] RDX: 00007ffe83e07499 RSI: 000000000000000a RDI: 00007ffe83e07490 [ 46.499086][ T430] RBP: 00007ffe83e07490 R08: 00000000ffffffff R09: 00007ffe83e07260 [ 46.507172][ T430] R10: 00005555567b3ba3 R11: 0000000000000246 R12: 00007fe78c2331f8 [ 46.515171][ T430] R13: 00007ffe83e08550 R14: 00005555567b3b00 R15: 00007ffe83e08590 [ 46.523163][ T430] ---[ end trace 9cc038e294c8c14c ]--- [ 46.528682][ T461] !!!! css_release kill_css(ffff88811244ac00) [ 46.535275][ T461] !!!! css_release kill_css(ffff88811244a800) [ 46.541842][ T461] !!!! css_release kill_css(ffff888112448800) [ 46.548231][ T527] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 46.548807][ T525] FAULT_INJECTION: forcing a failure. [ 46.548807][ T525] name failslab, interval 1, probability 0, space 0, times 0 [ 46.567491][ T525] CPU: 1 PID: 525 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 46.579009][ T525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.589052][ T525] Call Trace: [ 46.592329][ T525] dump_stack_lvl+0x1e2/0x24b [ 46.596986][ T525] ? panic+0x7d7/0x7d7 [ 46.601041][ T525] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.606568][ T525] ? find_next_bit+0xd6/0x120 [ 46.611226][ T525] ? cpumask_next+0x11/0x30 [ 46.615731][ T525] dump_stack+0x15/0x17 [ 46.619865][ T525] should_fail+0x3c0/0x510 [ 46.624287][ T525] ? percpu_ref_init+0xd0/0x330 [ 46.629209][ T525] __should_failslab+0x9f/0xe0 [ 46.634315][ T525] should_failslab+0x9/0x20 [ 46.638924][ T525] kmem_cache_alloc_trace+0x3a/0x330 [ 46.644194][ T525] percpu_ref_init+0xd0/0x330 [ 46.648867][ T525] ? cgroup_setup_root+0xea0/0xea0 [ 46.654044][ T525] cgroup_apply_control_enable+0x3a2/0x12f0 [ 46.659929][ T525] cgroup_apply_control+0x93/0x710 [ 46.665209][ T525] ? css_next_child+0x160/0x160 [ 46.670041][ T525] ? io_schedule+0x120/0x120 [ 46.674613][ T525] ? kernfs_fop_write_iter+0x15e/0x410 [ 46.680324][ T525] ? __kasan_check_write+0x14/0x20 [ 46.685416][ T525] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 46.690681][ T525] cgroup_subtree_control_write+0xd19/0x1310 [ 46.696640][ T525] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.702696][ T525] ? __kasan_check_write+0x14/0x20 [ 46.707804][ T525] ? _copy_from_iter+0x3fb/0xd60 [ 46.712930][ T525] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.718897][ T525] cgroup_file_write+0x28e/0x590 [ 46.723916][ T525] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.729132][ T525] ? mutex_lock+0xa6/0x110 [ 46.733773][ T525] ? mutex_trylock+0xb0/0xb0 [ 46.738364][ T525] ? __kasan_check_write+0x14/0x20 [ 46.743563][ T525] kernfs_fop_write_iter+0x2d0/0x410 [ 46.749160][ T525] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.756437][ T525] vfs_write+0xc1c/0xf40 [ 46.760873][ T525] ? kernel_write+0x3c0/0x3c0 [ 46.765545][ T525] ? mutex_trylock+0xb0/0xb0 [ 46.770185][ T525] ? __fdget_pos+0x26d/0x310 [ 46.774751][ T525] ? ksys_write+0x77/0x2c0 [ 46.779219][ T525] ksys_write+0x198/0x2c0 [ 46.783578][ T525] ? __ia32_sys_read+0x90/0x90 [ 46.788435][ T525] ? debug_smp_processor_id+0x17/0x20 [ 46.793792][ T525] __x64_sys_write+0x7b/0x90 [ 46.798461][ T525] do_syscall_64+0x34/0x70 [ 46.803312][ T525] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.809316][ T525] RIP: 0033:0x7ff5e9f170e9 [ 46.813715][ T525] 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 [ 46.833303][ T525] RSP: 002b:00007ff5e9e6c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.841725][ T525] RAX: ffffffffffffffda RBX: 00007ff5ea02a030 RCX: 00007ff5e9f170e9 [ 46.849681][ T525] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 46.858526][ T525] RBP: 00007ff5e9e6c1d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.866895][ T525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 2022/06/06 19:18:24 executed programs: 32 [ 46.874876][ T525] R13: 00007ffc4a28769f R14: 00007ff5e9e6c300 R15: 0000000000022000 [ 46.883064][ T525] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 46.891509][ T418] ------------[ cut here ]------------ [ 46.897028][ T418] WARNING: CPU: 0 PID: 418 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 46.906091][ T418] Modules linked in: [ 46.909982][ T418] CPU: 0 PID: 418 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 46.911097][ T390] !!!! css_release kill_css(ffff8881127c4800) [ 46.921793][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.928366][ T390] !!!! css_release kill_css(ffff8881127c6800) [ 46.938134][ T418] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 46.938152][ T418] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 46.944785][ T528] FAULT_INJECTION: forcing a failure. [ 46.944785][ T528] name failslab, interval 1, probability 0, space 0, times 0 [ 46.949965][ T418] RSP: 0018:ffffc90000ba7ba0 EFLAGS: 00010293 [ 46.949977][ T418] RAX: ffffffff81b68b0a RBX: 00000000ffffffff RCX: ffff88810c860000 [ 46.949983][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 46.949997][ T418] RBP: ffffc90000ba7c70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 47.004468][ T528] CPU: 1 PID: 528 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 47.012738][ T418] R10: fffff52000174f65 R11: 1ffff92000174f64 R12: dffffc0000000000 [ 47.024231][ T528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.024234][ T528] Call Trace: [ 47.024251][ T528] dump_stack_lvl+0x1e2/0x24b [ 47.024259][ T528] ? panic+0x7d7/0x7d7 [ 47.024275][ T528] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.032231][ T418] R13: ffff88811156f880 R14: ffffc90000ba7c00 R15: 1ffff92000174f7c [ 47.042256][ T528] ? find_next_bit+0xd6/0x120 [ 47.042265][ T528] ? cpumask_next+0x11/0x30 [ 47.042280][ T528] dump_stack+0x15/0x17 [ 47.045558][ T418] FS: 00005555573da400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 47.050310][ T528] should_fail+0x3c0/0x510 [ 47.054366][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.059788][ T528] ? percpu_ref_init+0xd0/0x330 [ 47.067751][ T418] CR2: 00007ffc4a285ff8 CR3: 000000010c772000 CR4: 00000000003506b0 [ 47.072388][ T528] __should_failslab+0x9f/0xe0 [ 47.072404][ T528] should_failslab+0x9/0x20 [ 47.076901][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.081032][ T528] kmem_cache_alloc_trace+0x3a/0x330 [ 47.081048][ T528] percpu_ref_init+0xd0/0x330 [ 47.089957][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.089971][ T418] Call Trace: [ 47.094384][ T528] ? cgroup_setup_root+0xea0/0xea0 [ 47.094397][ T528] cgroup_apply_control_enable+0x3a2/0x12f0 [ 47.094408][ T528] cgroup_apply_control+0x93/0x710 [ 47.094427][ T528] ? css_next_child+0x160/0x160 [ 47.101011][ T418] ? io_schedule+0x120/0x120 [ 47.105911][ T528] ? dequeue_task_fair+0x7ad/0xb50 [ 47.113877][ T418] ? vfs_submount+0xb0/0xb0 [ 47.118684][ T528] ? io_schedule+0x120/0x120 [ 47.123171][ T418] ? shrink_dentry_list+0x4ec/0x500 [ 47.131273][ T528] ? kernfs_fop_write_iter+0x15e/0x410 [ 47.131291][ T528] ? __kasan_check_write+0x14/0x20 [ 47.138210][ T418] namespace_unlock+0x448/0x4f0 [ 47.142849][ T528] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 47.142858][ T528] cgroup_subtree_control_write+0xd19/0x1310 [ 47.142874][ T528] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.150949][ T418] ? umount_tree+0xf50/0xf50 [ 47.154288][ T528] ? __kasan_check_write+0x14/0x20 [ 47.159377][ T418] ? __detach_mounts+0x670/0x670 [ 47.165233][ T528] ? _copy_from_iter+0x3fb/0xd60 [ 47.165243][ T528] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.165251][ T528] cgroup_file_write+0x28e/0x590 [ 47.165266][ T528] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.170351][ T418] ? selinux_umount+0xf0/0x130 [ 47.175196][ T528] ? mutex_lock+0xa6/0x110 [ 47.175205][ T528] ? mutex_trylock+0xb0/0xb0 [ 47.175220][ T528] ? __kasan_check_write+0x14/0x20 [ 47.179782][ T418] path_umount+0xf03/0xfb0 [ 47.184863][ T528] kernfs_fop_write_iter+0x2d0/0x410 [ 47.184872][ T528] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.184886][ T528] vfs_write+0xc1c/0xf40 [ 47.189377][ T418] ? namespace_unlock+0x4f0/0x4f0 [ 47.193932][ T528] ? kernel_write+0x3c0/0x3c0 [ 47.193941][ T528] ? mutex_trylock+0xb0/0xb0 [ 47.193956][ T528] ? __fdget_pos+0x26d/0x310 [ 47.199133][ T418] ? user_path_at_empty+0x40/0x50 [ 47.204937][ T528] ? ksys_write+0x77/0x2c0 [ 47.204946][ T528] ksys_write+0x198/0x2c0 [ 47.204960][ T528] ? __ia32_sys_read+0x90/0x90 [ 47.210063][ T418] __x64_sys_umount+0x122/0x170 [ 47.214863][ T528] ? debug_smp_processor_id+0x17/0x20 [ 47.214872][ T528] __x64_sys_write+0x7b/0x90 [ 47.214887][ T528] do_syscall_64+0x34/0x70 [ 47.220148][ T418] ? path_umount+0xfb0/0xfb0 [ 47.226200][ T528] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.226209][ T528] RIP: 0033:0x7fe4108200e9 [ 47.226224][ T528] 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 [ 47.232197][ T418] ? debug_smp_processor_id+0x17/0x20 [ 47.236751][ T528] RSP: 002b:00007fe410775168 EFLAGS: 00000246 [ 47.241849][ T418] do_syscall_64+0x34/0x70 [ 47.246745][ T528] ORIG_RAX: 0000000000000001 [ 47.251672][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.257696][ T528] RAX: ffffffffffffffda RBX: 00007fe410933030 RCX: 00007fe4108200e9 [ 47.262614][ T418] RIP: 0033:0x7ff5e9f18557 [ 47.267798][ T528] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 47.272914][ T418] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.277288][ T528] RBP: 00007fe4107751d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.281864][ T418] RSP: 002b:00007ffc4a2867f8 EFLAGS: 00000246 [ 47.286933][ T528] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.291330][ T418] ORIG_RAX: 00000000000000a6 [ 47.296575][ T528] R13: 00007fffcdf413ef R14: 00007fe410775300 R15: 0000000000022000 [ 47.301696][ T418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff5e9f18557 [ 47.309393][ T528] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 47.311113][ T418] RDX: 00007ffc4a2868ca RSI: 000000000000000a RDI: 00007ffc4a2868c0 [ 47.522967][ T418] RBP: 00007ffc4a2868c0 R08: 00000000ffffffff R09: 00007ffc4a286690 [ 47.530956][ T418] R10: 00005555573dbba3 R11: 0000000000000246 R12: 00007ff5e9f701f8 [ 47.538940][ T418] R13: 00007ffc4a287980 R14: 00005555573dbb00 R15: 00007ffc4a2879c0 [ 47.546929][ T418] ---[ end trace 9cc038e294c8c14d ]--- [ 47.552464][ T418] ------------[ cut here ]------------ [ 47.557931][ T418] WARNING: CPU: 1 PID: 418 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 47.567138][ T418] Modules linked in: [ 47.571064][ T418] CPU: 1 PID: 418 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 47.582946][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.593200][ T418] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 47.598917][ T418] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 47.618709][ T418] RSP: 0018:ffffc90000ba7ca0 EFLAGS: 00010293 [ 47.624795][ T418] RAX: ffffffff81b68b0a RBX: 00000000ffffffff RCX: ffff88810c860000 [ 47.632875][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 47.641035][ T418] RBP: ffffc90000ba7d70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 47.649168][ T418] R10: fffff52000174f85 R11: 1ffff92000174f84 R12: dffffc0000000000 [ 47.657148][ T418] R13: ffff88811156f880 R14: ffffc90000ba7d00 R15: 1ffff92000174f9c [ 47.665242][ T418] FS: 00005555573da400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 47.674172][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.680747][ T418] CR2: 00007fffcdf4056c CR3: 000000010c772000 CR4: 00000000003506a0 [ 47.688820][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.696834][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.704809][ T418] Call Trace: [ 47.708093][ T418] ? lockref_get_or_lock+0x340/0x340 [ 47.713387][ T418] ? umount_tree+0xf50/0xf50 [ 47.717965][ T418] ? vfs_submount+0xb0/0xb0 [ 47.722574][ T418] ? dput+0x2b6/0x320 [ 47.726541][ T418] path_umount+0x1fe/0xfb0 [ 47.730962][ T418] ? namespace_unlock+0x4f0/0x4f0 [ 47.735989][ T418] ? user_path_at_empty+0x40/0x50 [ 47.741195][ T418] __x64_sys_umount+0x122/0x170 [ 47.746022][ T418] ? path_umount+0xfb0/0xfb0 [ 47.750685][ T418] ? debug_smp_processor_id+0x17/0x20 [ 47.756152][ T418] do_syscall_64+0x34/0x70 [ 47.760580][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.766500][ T418] RIP: 0033:0x7ff5e9f18557 [ 47.770925][ T418] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.790741][ T418] RSP: 002b:00007ffc4a2867f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 47.799249][ T418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff5e9f18557 [ 47.807389][ T418] RDX: 00007ffc4a2868ca RSI: 000000000000000a RDI: 00007ffc4a2868c0 [ 47.815376][ T418] RBP: 00007ffc4a2868c0 R08: 00000000ffffffff R09: 00007ffc4a286690 [ 47.823344][ T418] R10: 00005555573dbba3 R11: 0000000000000246 R12: 00007ff5e9f701f8 [ 47.831307][ T418] R13: 00007ffc4a287980 R14: 00005555573dbb00 R15: 00007ffc4a2879c0 [ 47.839261][ T418] ---[ end trace 9cc038e294c8c14e ]--- [ 47.881157][ T390] !!!! css_release kill_css(ffff888117fd3c00) [ 47.887462][ T390] !!!! css_release kill_css(ffff888117fd0000) [ 47.893972][ T494] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 47.894003][ T521] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 47.900619][ T501] FAULT_INJECTION: forcing a failure. [ 47.900619][ T501] name failslab, interval 1, probability 0, space 0, times 0 [ 47.920027][ T501] CPU: 0 PID: 501 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 47.931723][ T501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.941933][ T501] Call Trace: [ 47.945202][ T501] dump_stack_lvl+0x1e2/0x24b [ 47.949856][ T501] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.955296][ T501] ? selinux_kernfs_init_security+0x1a8/0x760 [ 47.961618][ T501] dump_stack+0x15/0x17 [ 47.965771][ T501] should_fail+0x3c0/0x510 [ 47.970186][ T501] ? __kernfs_new_node+0x99/0x6e0 [ 47.975201][ T501] __should_failslab+0x9f/0xe0 [ 47.979958][ T501] should_failslab+0x9/0x20 [ 47.984750][ T501] __kmalloc_track_caller+0x5f/0x350 [ 47.990024][ T501] kstrdup_const+0x55/0x90 [ 47.994446][ T501] __kernfs_new_node+0x99/0x6e0 [ 47.999308][ T501] ? is_module_text_address+0xe1/0x140 [ 48.004860][ T501] ? kernfs_new_node+0x170/0x170 [ 48.009775][ T501] ? ptr_to_hashval+0x60/0x60 [ 48.014797][ T501] ? arch_stack_walk+0xf8/0x140 [ 48.019622][ T501] ? snprintf+0xd6/0x120 [ 48.023840][ T501] kernfs_new_node+0x97/0x170 [ 48.029372][ T501] __kernfs_create_file+0x4a/0x270 [ 48.034497][ T501] cgroup_addrm_files+0xab8/0xfe0 [ 48.039590][ T501] ? ____kasan_kmalloc+0xdc/0x110 [ 48.044586][ T501] ? __kasan_kmalloc+0x9/0x10 [ 48.049247][ T501] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 48.054787][ T501] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 48.061094][ T501] ? delete_node+0x759/0x7b0 [ 48.065661][ T501] ? __kasan_check_read+0x11/0x20 [ 48.070833][ T501] ? delete_node+0x759/0x7b0 [ 48.075396][ T501] ? __kasan_check_write+0x14/0x20 [ 48.080526][ T501] ? idr_replace+0x1c4/0x230 [ 48.085098][ T501] ? idr_get_next+0x4b0/0x4b0 [ 48.089749][ T501] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 48.094766][ T501] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 48.099961][ T501] css_populate_dir+0x137/0x370 [ 48.104796][ T501] cgroup_apply_control_enable+0x8b9/0x12f0 [ 48.110667][ T501] cgroup_apply_control+0x93/0x710 [ 48.115751][ T501] ? css_next_child+0x160/0x160 [ 48.120588][ T501] ? set_next_entity+0xc5/0x390 [ 48.125414][ T501] ? io_schedule+0x120/0x120 [ 48.129994][ T501] ? kernfs_fop_write_iter+0x15e/0x410 [ 48.135436][ T501] ? __kasan_check_write+0x14/0x20 [ 48.140549][ T501] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 48.145833][ T501] cgroup_subtree_control_write+0xd19/0x1310 [ 48.151807][ T501] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.157777][ T501] ? __kasan_check_write+0x14/0x20 [ 48.162861][ T501] ? _copy_from_iter+0x3fb/0xd60 [ 48.167773][ T501] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.173831][ T501] cgroup_file_write+0x28e/0x590 [ 48.178750][ T501] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.183972][ T501] ? mutex_lock+0xa6/0x110 [ 48.188380][ T501] ? mutex_trylock+0xb0/0xb0 [ 48.193045][ T501] ? __kasan_check_write+0x14/0x20 [ 48.198157][ T501] kernfs_fop_write_iter+0x2d0/0x410 [ 48.203528][ T501] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.208622][ T501] vfs_write+0xc1c/0xf40 [ 48.213093][ T501] ? kernel_write+0x3c0/0x3c0 [ 48.217764][ T501] ? mutex_trylock+0xb0/0xb0 [ 48.222337][ T501] ? __fdget_pos+0x26d/0x310 [ 48.226901][ T501] ? ksys_write+0x77/0x2c0 [ 48.231306][ T501] ksys_write+0x198/0x2c0 [ 48.235793][ T501] ? __ia32_sys_read+0x90/0x90 [ 48.240546][ T501] ? debug_smp_processor_id+0x17/0x20 [ 48.245904][ T501] __x64_sys_write+0x7b/0x90 [ 48.250471][ T501] do_syscall_64+0x34/0x70 [ 48.254870][ T501] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.260733][ T501] RIP: 0033:0x7f21333640e9 [ 48.265303][ T501] 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 [ 48.285168][ T501] RSP: 002b:00007f21332b9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 48.293563][ T501] RAX: ffffffffffffffda RBX: 00007f2133477030 RCX: 00007f21333640e9 [ 48.301567][ T501] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 48.309527][ T501] RBP: 00007f21332b91d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.317521][ T501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.325475][ T501] R13: 00007ffd7c682e4f R14: 00007f21332b9300 R15: 0000000000022000 [ 48.333635][ T501] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 48.341315][ T501] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.370988][ T461] !!!! css_release kill_css(ffff888112904800) [ 48.377646][ T461] !!!! css_release kill_css(ffff888112906800) [ 48.384810][ T461] !!!! css_release kill_css(ffff888112906c00) [ 48.391228][ T535] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.391243][ T538] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.398282][ T535] FAULT_INJECTION: forcing a failure. [ 48.398282][ T535] name failslab, interval 1, probability 0, space 0, times 0 [ 48.417839][ T535] CPU: 1 PID: 535 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 48.429502][ T535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.439632][ T535] Call Trace: [ 48.442926][ T535] dump_stack_lvl+0x1e2/0x24b [ 48.447701][ T535] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.453405][ T535] ? selinux_kernfs_init_security+0x1a8/0x760 [ 48.459556][ T535] dump_stack+0x15/0x17 [ 48.463788][ T535] should_fail+0x3c0/0x510 [ 48.468274][ T535] ? __kernfs_new_node+0x99/0x6e0 [ 48.473280][ T535] __should_failslab+0x9f/0xe0 [ 48.478090][ T535] should_failslab+0x9/0x20 [ 48.482600][ T535] __kmalloc_track_caller+0x5f/0x350 [ 48.487979][ T535] kstrdup_const+0x55/0x90 [ 48.492561][ T535] __kernfs_new_node+0x99/0x6e0 [ 48.497428][ T535] ? is_module_text_address+0xe1/0x140 [ 48.502863][ T535] ? kernfs_new_node+0x170/0x170 [ 48.507960][ T535] ? ptr_to_hashval+0x60/0x60 [ 48.513533][ T535] ? arch_stack_walk+0xf8/0x140 [ 48.518505][ T535] ? snprintf+0xd6/0x120 [ 48.522734][ T535] kernfs_new_node+0x97/0x170 [ 48.527411][ T535] __kernfs_create_file+0x4a/0x270 [ 48.532521][ T535] cgroup_addrm_files+0xab8/0xfe0 [ 48.537762][ T535] ? ____kasan_kmalloc+0xdc/0x110 [ 48.542773][ T535] ? __kasan_kmalloc+0x9/0x10 [ 48.547514][ T535] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 48.553228][ T535] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 48.559379][ T535] ? delete_node+0x759/0x7b0 [ 48.564051][ T535] ? __kasan_check_read+0x11/0x20 [ 48.569084][ T535] ? delete_node+0x759/0x7b0 [ 48.573652][ T535] ? __kasan_check_write+0x14/0x20 [ 48.578876][ T535] ? idr_replace+0x1c4/0x230 [ 48.583457][ T535] ? idr_get_next+0x4b0/0x4b0 [ 48.588151][ T535] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 48.593161][ T535] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 48.598347][ T535] css_populate_dir+0x137/0x370 [ 48.603188][ T535] cgroup_apply_control_enable+0x8b9/0x12f0 [ 48.609260][ T535] cgroup_apply_control+0x93/0x710 [ 48.614363][ T535] ? css_next_child+0x160/0x160 [ 48.619290][ T535] ? io_schedule+0x120/0x120 [ 48.623980][ T535] ? kernfs_fop_write_iter+0x15e/0x410 [ 48.629530][ T535] ? __kasan_check_write+0x14/0x20 [ 48.634812][ T535] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 48.640104][ T535] cgroup_subtree_control_write+0xd19/0x1310 [ 48.646171][ T535] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.652232][ T535] ? __kasan_check_write+0x14/0x20 [ 48.657325][ T535] ? _copy_from_iter+0x3fb/0xd60 [ 48.662258][ T535] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.668235][ T535] cgroup_file_write+0x28e/0x590 [ 48.673154][ T535] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.678240][ T535] ? mutex_lock+0xa6/0x110 [ 48.682649][ T535] ? mutex_trylock+0xb0/0xb0 [ 48.687317][ T535] ? __kasan_check_write+0x14/0x20 [ 48.692404][ T535] kernfs_fop_write_iter+0x2d0/0x410 [ 48.697668][ T535] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.702758][ T535] vfs_write+0xc1c/0xf40 [ 48.706978][ T535] ? kernel_write+0x3c0/0x3c0 [ 48.711646][ T535] ? mutex_trylock+0xb0/0xb0 [ 48.716212][ T535] ? __fdget_pos+0x26d/0x310 [ 48.720782][ T535] ? ksys_write+0x77/0x2c0 [ 48.725190][ T535] ksys_write+0x198/0x2c0 [ 48.729540][ T535] ? __ia32_sys_read+0x90/0x90 [ 48.734381][ T535] ? debug_smp_processor_id+0x17/0x20 [ 48.739741][ T535] __x64_sys_write+0x7b/0x90 [ 48.744308][ T535] do_syscall_64+0x34/0x70 [ 48.748698][ T535] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.754564][ T535] RIP: 0033:0x7ff5e9f170e9 [ 48.758962][ T535] 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 [ 48.778542][ T535] RSP: 002b:00007ff5e9e8d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 48.786934][ T535] RAX: ffffffffffffffda RBX: 00007ff5ea029f60 RCX: 00007ff5e9f170e9 [ 48.794973][ T535] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 48.802924][ T535] RBP: 00007ff5e9e8d1d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.810876][ T535] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.818918][ T535] R13: 00007ffc4a28769f R14: 00007ff5e9e8d300 R15: 0000000000022000 [ 48.827374][ T535] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 48.834603][ T535] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.870985][ T390] !!!! css_release kill_css(ffff888112b58800) [ 48.877348][ T390] !!!! css_release kill_css(ffff888112b5a800) [ 48.883764][ T390] !!!! css_release kill_css(ffff888112b5ac00) [ 48.889965][ T543] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.890551][ T522] FAULT_INJECTION: forcing a failure. [ 48.890551][ T522] name failslab, interval 1, probability 0, space 0, times 0 [ 48.909342][ T522] CPU: 0 PID: 522 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 48.920965][ T522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.931019][ T522] Call Trace: [ 48.934386][ T522] dump_stack_lvl+0x1e2/0x24b [ 48.939048][ T522] ? panic+0x7d7/0x7d7 [ 48.943108][ T522] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.949157][ T522] ? find_next_bit+0xd6/0x120 [ 48.953815][ T522] ? cpumask_next+0x11/0x30 [ 48.958522][ T522] dump_stack+0x15/0x17 [ 48.963011][ T522] should_fail+0x3c0/0x510 [ 48.967409][ T522] ? percpu_ref_init+0xd0/0x330 [ 48.972245][ T522] __should_failslab+0x9f/0xe0 [ 48.976996][ T522] should_failslab+0x9/0x20 [ 48.981506][ T522] kmem_cache_alloc_trace+0x3a/0x330 [ 48.987185][ T522] percpu_ref_init+0xd0/0x330 [ 48.991847][ T522] ? cgroup_setup_root+0xea0/0xea0 [ 48.996966][ T522] cgroup_apply_control_enable+0x3a2/0x12f0 [ 49.002933][ T522] cgroup_apply_control+0x93/0x710 [ 49.008040][ T522] ? css_next_child+0x160/0x160 [ 49.013008][ T522] ? set_next_entity+0xc5/0x390 [ 49.017947][ T522] ? io_schedule+0x120/0x120 [ 49.022519][ T522] ? kernfs_fop_write_iter+0x15e/0x410 [ 49.027956][ T522] ? __kasan_check_write+0x14/0x20 [ 49.033054][ T522] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 49.038472][ T522] cgroup_subtree_control_write+0xd19/0x1310 [ 49.044448][ T522] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.050408][ T522] ? __kasan_check_write+0x14/0x20 [ 49.055607][ T522] ? _copy_from_iter+0x3fb/0xd60 [ 49.060549][ T522] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.066791][ T522] cgroup_file_write+0x28e/0x590 [ 49.071957][ T522] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.077060][ T522] ? mutex_lock+0xa6/0x110 [ 49.081455][ T522] ? mutex_trylock+0xb0/0xb0 [ 49.086115][ T522] ? __kasan_check_write+0x14/0x20 [ 49.091301][ T522] kernfs_fop_write_iter+0x2d0/0x410 [ 49.096719][ T522] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.101920][ T522] vfs_write+0xc1c/0xf40 [ 49.106260][ T522] ? kernel_write+0x3c0/0x3c0 [ 49.110917][ T522] ? mutex_trylock+0xb0/0xb0 [ 49.115488][ T522] ? __fdget_pos+0x26d/0x310 [ 49.120157][ T522] ? ksys_write+0x77/0x2c0 [ 49.124550][ T522] ksys_write+0x198/0x2c0 [ 49.128857][ T522] ? __ia32_sys_read+0x90/0x90 [ 49.133967][ T522] ? debug_smp_processor_id+0x17/0x20 [ 49.139640][ T522] __x64_sys_write+0x7b/0x90 [ 49.144231][ T522] do_syscall_64+0x34/0x70 [ 49.148661][ T522] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.154662][ T522] RIP: 0033:0x7f6d588ea0e9 [ 49.159067][ T522] 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 [ 49.178663][ T522] RSP: 002b:00007f6d5883f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 49.187333][ T522] RAX: ffffffffffffffda RBX: 00007f6d589fd030 RCX: 00007f6d588ea0e9 [ 49.195321][ T522] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 49.203588][ T522] RBP: 00007f6d5883f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 49.211546][ T522] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 49.219500][ T522] R13: 00007fff407af90f R14: 00007f6d5883f300 R15: 0000000000022000 [ 49.227989][ T522] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.271109][ T461] !!!! css_release kill_css(ffff888112bdb400) [ 49.277579][ T461] !!!! css_release kill_css(ffff888112bd9000) [ 49.283899][ T536] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.284000][ T532] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.290456][ T531] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.297538][ T540] FAULT_INJECTION: forcing a failure. [ 49.297538][ T540] name failslab, interval 1, probability 0, space 0, times 0 [ 49.316271][ T540] CPU: 0 PID: 540 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 49.327873][ T540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.337928][ T540] Call Trace: [ 49.341238][ T540] dump_stack_lvl+0x1e2/0x24b [ 49.345913][ T540] ? panic+0x7d7/0x7d7 [ 49.349973][ T540] ? bfq_pos_tree_add_move+0x43e/0x43e [ 49.355592][ T540] ? find_next_bit+0xd6/0x120 [ 49.360344][ T540] ? cpumask_next+0x11/0x30 [ 49.364830][ T540] dump_stack+0x15/0x17 [ 49.368970][ T540] should_fail+0x3c0/0x510 [ 49.373553][ T540] ? percpu_ref_init+0xd0/0x330 [ 49.378384][ T540] __should_failslab+0x9f/0xe0 [ 49.383126][ T540] should_failslab+0x9/0x20 [ 49.387702][ T540] kmem_cache_alloc_trace+0x3a/0x330 [ 49.392982][ T540] percpu_ref_init+0xd0/0x330 [ 49.397654][ T540] ? cgroup_setup_root+0xea0/0xea0 [ 49.402751][ T540] cgroup_apply_control_enable+0x3a2/0x12f0 [ 49.408645][ T540] cgroup_apply_control+0x93/0x710 [ 49.413736][ T540] ? css_next_child+0x160/0x160 [ 49.418564][ T540] ? io_schedule+0x120/0x120 [ 49.423131][ T540] ? kernfs_fop_write_iter+0x15e/0x410 [ 49.428753][ T540] ? __kasan_check_write+0x14/0x20 [ 49.433929][ T540] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 49.439193][ T540] cgroup_subtree_control_write+0xd19/0x1310 [ 49.445151][ T540] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.451194][ T540] ? __kasan_check_write+0x14/0x20 [ 49.456372][ T540] ? _copy_from_iter+0x3fb/0xd60 [ 49.461377][ T540] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.467343][ T540] cgroup_file_write+0x28e/0x590 [ 49.472266][ T540] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.477460][ T540] ? mutex_lock+0xa6/0x110 [ 49.481854][ T540] ? mutex_trylock+0xb0/0xb0 [ 49.486518][ T540] ? __kasan_check_write+0x14/0x20 [ 49.491606][ T540] kernfs_fop_write_iter+0x2d0/0x410 [ 49.496886][ T540] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.501981][ T540] vfs_write+0xc1c/0xf40 [ 49.506225][ T540] ? kernel_write+0x3c0/0x3c0 [ 49.510910][ T540] ? mutex_trylock+0xb0/0xb0 [ 49.515487][ T540] ? __fdget_pos+0x26d/0x310 [ 49.520058][ T540] ? ksys_write+0x77/0x2c0 [ 49.524452][ T540] ksys_write+0x198/0x2c0 [ 49.528759][ T540] ? __ia32_sys_read+0x90/0x90 [ 49.533513][ T540] ? debug_smp_processor_id+0x17/0x20 [ 49.539389][ T540] __x64_sys_write+0x7b/0x90 [ 49.543968][ T540] do_syscall_64+0x34/0x70 [ 49.548369][ T540] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.554379][ T540] RIP: 0033:0x7fe78c1da0e9 [ 49.558869][ T540] 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 [ 49.578725][ T540] RSP: 002b:00007fe78c12f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 49.587305][ T540] RAX: ffffffffffffffda RBX: 00007fe78c2ed030 RCX: 00007fe78c1da0e9 [ 49.595439][ T540] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 49.603607][ T540] RBP: 00007fe78c12f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 49.611559][ T540] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 49.619696][ T540] R13: 00007ffe83e0826f R14: 00007fe78c12f300 R15: 0000000000022000 [ 49.628282][ T540] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.671075][ T19] !!!! css_release kill_css(ffff888112bd9800) [ 49.677263][ T19] !!!! css_release kill_css(ffff888112bda000) [ 49.683709][ T548] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.683841][ T541] FAULT_INJECTION: forcing a failure. [ 49.683841][ T541] name failslab, interval 1, probability 0, space 0, times 0 [ 49.702862][ T541] CPU: 1 PID: 541 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 49.714472][ T541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.724648][ T541] Call Trace: [ 49.727929][ T541] dump_stack_lvl+0x1e2/0x24b [ 49.732613][ T541] ? bfq_pos_tree_add_move+0x43e/0x43e [ 49.738407][ T541] ? selinux_kernfs_init_security+0x1a8/0x760 [ 49.744465][ T541] dump_stack+0x15/0x17 [ 49.748602][ T541] should_fail+0x3c0/0x510 [ 49.753006][ T541] ? __kernfs_new_node+0x99/0x6e0 [ 49.758010][ T541] __should_failslab+0x9f/0xe0 [ 49.762763][ T541] should_failslab+0x9/0x20 [ 49.767529][ T541] __kmalloc_track_caller+0x5f/0x350 [ 49.772902][ T541] kstrdup_const+0x55/0x90 [ 49.777346][ T541] __kernfs_new_node+0x99/0x6e0 [ 49.782196][ T541] ? is_module_text_address+0xe1/0x140 [ 49.787742][ T541] ? kernfs_new_node+0x170/0x170 [ 49.792670][ T541] ? ptr_to_hashval+0x60/0x60 [ 49.797497][ T541] ? arch_stack_walk+0xf8/0x140 [ 49.802337][ T541] ? snprintf+0xd6/0x120 [ 49.806575][ T541] kernfs_new_node+0x97/0x170 [ 49.811241][ T541] __kernfs_create_file+0x4a/0x270 [ 49.816353][ T541] cgroup_addrm_files+0xab8/0xfe0 [ 49.821364][ T541] ? ____kasan_kmalloc+0xdc/0x110 [ 49.826392][ T541] ? __kasan_kmalloc+0x9/0x10 [ 49.831158][ T541] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 49.836846][ T541] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 49.842993][ T541] ? delete_node+0x759/0x7b0 [ 49.847773][ T541] ? __kasan_check_read+0x11/0x20 [ 49.852775][ T541] ? delete_node+0x759/0x7b0 [ 49.857339][ T541] ? __kasan_check_write+0x14/0x20 [ 49.862640][ T541] ? idr_replace+0x1c4/0x230 [ 49.867293][ T541] ? idr_get_next+0x4b0/0x4b0 [ 49.871962][ T541] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 49.876962][ T541] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 49.882147][ T541] css_populate_dir+0x137/0x370 [ 49.886995][ T541] cgroup_apply_control_enable+0x8b9/0x12f0 [ 49.892873][ T541] cgroup_apply_control+0x93/0x710 [ 49.898066][ T541] ? css_next_child+0x160/0x160 [ 49.903005][ T541] ? set_next_entity+0xc5/0x390 [ 49.908596][ T541] ? io_schedule+0x120/0x120 [ 49.913272][ T541] ? kernfs_fop_write_iter+0x15e/0x410 [ 49.918717][ T541] ? __kasan_check_write+0x14/0x20 [ 49.923830][ T541] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 49.929279][ T541] cgroup_subtree_control_write+0xd19/0x1310 [ 49.935343][ T541] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.941336][ T541] ? __kasan_check_write+0x14/0x20 [ 49.946734][ T541] ? _copy_from_iter+0x3fb/0xd60 [ 49.951657][ T541] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.957747][ T541] cgroup_file_write+0x28e/0x590 [ 49.962682][ T541] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.967821][ T541] ? mutex_lock+0xa6/0x110 [ 49.972224][ T541] ? mutex_trylock+0xb0/0xb0 [ 49.976973][ T541] ? __kasan_check_write+0x14/0x20 [ 49.982065][ T541] kernfs_fop_write_iter+0x2d0/0x410 [ 49.987333][ T541] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.992519][ T541] vfs_write+0xc1c/0xf40 [ 49.996750][ T541] ? kernel_write+0x3c0/0x3c0 [ 50.001437][ T541] ? mutex_trylock+0xb0/0xb0 [ 50.006007][ T541] ? __fdget_pos+0x26d/0x310 [ 50.010579][ T541] ? ksys_write+0x77/0x2c0 [ 50.014979][ T541] ksys_write+0x198/0x2c0 [ 50.019299][ T541] ? __ia32_sys_read+0x90/0x90 [ 50.024046][ T541] ? debug_smp_processor_id+0x17/0x20 [ 50.029575][ T541] __x64_sys_write+0x7b/0x90 [ 50.034155][ T541] do_syscall_64+0x34/0x70 [ 50.038660][ T541] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.044628][ T541] RIP: 0033:0x7f6c01dab0e9 [ 50.049027][ T541] 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 [ 50.068714][ T541] RSP: 002b:00007f6c01d00168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.077121][ T541] RAX: ffffffffffffffda RBX: 00007f6c01ebe030 RCX: 00007f6c01dab0e9 [ 50.085080][ T541] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.093048][ T541] RBP: 00007f6c01d001d0 R08: 0000000000000000 R09: 0000000000000000 [ 50.100999][ T541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 50.109256][ T541] R13: 00007ffe3bc55f7f R14: 00007f6c01d00300 R15: 0000000000022000 [ 50.118173][ T541] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 50.125610][ T541] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.150968][ T19] !!!! css_release kill_css(ffff888112f26c00) [ 50.157157][ T19] !!!! css_release kill_css(ffff888113034000) [ 50.164005][ T19] !!!! css_release kill_css(ffff888113037c00) [ 50.170386][ T548] FAULT_INJECTION: forcing a failure. [ 50.170386][ T548] name failslab, interval 1, probability 0, space 0, times 0 [ 50.183181][ T548] CPU: 1 PID: 548 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 50.194707][ T548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.204740][ T548] Call Trace: [ 50.208014][ T548] dump_stack_lvl+0x1e2/0x24b [ 50.212695][ T548] ? panic+0x7d7/0x7d7 [ 50.216766][ T548] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.222206][ T548] ? find_next_bit+0xd6/0x120 [ 50.227018][ T548] ? cpumask_next+0x11/0x30 [ 50.231517][ T548] dump_stack+0x15/0x17 [ 50.235773][ T548] should_fail+0x3c0/0x510 [ 50.240397][ T548] ? percpu_ref_init+0xd0/0x330 [ 50.245248][ T548] __should_failslab+0x9f/0xe0 [ 50.249992][ T548] should_failslab+0x9/0x20 [ 50.254488][ T548] kmem_cache_alloc_trace+0x3a/0x330 [ 50.259761][ T548] percpu_ref_init+0xd0/0x330 [ 50.264530][ T548] ? cgroup_setup_root+0xea0/0xea0 [ 50.269635][ T548] cgroup_apply_control_enable+0x3a2/0x12f0 [ 50.275644][ T548] cgroup_apply_control+0x93/0x710 [ 50.280739][ T548] ? css_next_child+0x160/0x160 [ 50.285570][ T548] ? io_schedule+0x120/0x120 [ 50.290136][ T548] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.295577][ T548] ? __kasan_check_write+0x14/0x20 [ 50.300761][ T548] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.306138][ T548] cgroup_subtree_control_write+0xd19/0x1310 [ 50.312317][ T548] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.318339][ T548] ? __kasan_check_write+0x14/0x20 [ 50.323441][ T548] ? _copy_from_iter+0x3fb/0xd60 [ 50.328469][ T548] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.334518][ T548] cgroup_file_write+0x28e/0x590 [ 50.339808][ T548] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.344904][ T548] ? mutex_lock+0xa6/0x110 [ 50.349388][ T548] ? mutex_trylock+0xb0/0xb0 [ 50.353970][ T548] ? __kasan_check_write+0x14/0x20 [ 50.359091][ T548] kernfs_fop_write_iter+0x2d0/0x410 [ 50.364369][ T548] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.369461][ T548] vfs_write+0xc1c/0xf40 [ 50.373694][ T548] ? kernel_write+0x3c0/0x3c0 [ 50.378351][ T548] ? mutex_trylock+0xb0/0xb0 [ 50.382952][ T548] ? __fdget_pos+0x26d/0x310 [ 50.387526][ T548] ? ksys_write+0x77/0x2c0 [ 50.392006][ T548] ksys_write+0x198/0x2c0 [ 50.396314][ T548] ? __ia32_sys_read+0x90/0x90 [ 50.401055][ T548] ? debug_smp_processor_id+0x17/0x20 [ 50.406422][ T548] __x64_sys_write+0x7b/0x90 [ 50.410987][ T548] do_syscall_64+0x34/0x70 [ 50.415483][ T548] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.421365][ T548] RIP: 0033:0x7fe78c1da0e9 [ 50.425877][ T548] 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 [ 50.445551][ T548] RSP: 002b:00007fe78c150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.454570][ T548] RAX: ffffffffffffffda RBX: 00007fe78c2ecf60 RCX: 00007fe78c1da0e9 [ 50.462547][ T548] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.470502][ T548] RBP: 00007fe78c1501d0 R08: 0000000000000000 R09: 0000000000000000 [ 50.478467][ T548] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 50.486449][ T548] R13: 00007ffe83e0826f R14: 00007fe78c150300 R15: 0000000000022000 [ 50.494672][ T548] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.561103][ T391] !!!! css_release kill_css(ffff8881127ff000) [ 50.567502][ T391] !!!! css_release kill_css(ffff8881127fe000) [ 50.573982][ T550] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.574862][ T553] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.580626][ T545] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.587656][ T539] FAULT_INJECTION: forcing a failure. [ 50.587656][ T539] name failslab, interval 1, probability 0, space 0, times 0 [ 50.608469][ T539] CPU: 0 PID: 539 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 50.620107][ T539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.630156][ T539] Call Trace: [ 50.633557][ T539] dump_stack_lvl+0x1e2/0x24b [ 50.638566][ T539] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.644007][ T539] ? selinux_kernfs_init_security+0x1a8/0x760 [ 50.650154][ T539] dump_stack+0x15/0x17 [ 50.654406][ T539] should_fail+0x3c0/0x510 [ 50.658814][ T539] ? __kernfs_new_node+0x99/0x6e0 [ 50.663909][ T539] __should_failslab+0x9f/0xe0 [ 50.668653][ T539] should_failslab+0x9/0x20 [ 50.673168][ T539] __kmalloc_track_caller+0x5f/0x350 [ 50.678437][ T539] kstrdup_const+0x55/0x90 [ 50.683032][ T539] __kernfs_new_node+0x99/0x6e0 [ 50.687863][ T539] ? is_module_text_address+0xe1/0x140 [ 50.693298][ T539] ? kernfs_new_node+0x170/0x170 [ 50.698215][ T539] ? ptr_to_hashval+0x60/0x60 [ 50.702877][ T539] ? arch_stack_walk+0xf8/0x140 [ 50.707799][ T539] ? snprintf+0xd6/0x120 [ 50.712112][ T539] kernfs_new_node+0x97/0x170 [ 50.716769][ T539] __kernfs_create_file+0x4a/0x270 [ 50.721865][ T539] cgroup_addrm_files+0xab8/0xfe0 [ 50.727070][ T539] ? ____kasan_kmalloc+0xdc/0x110 [ 50.732070][ T539] ? __kasan_kmalloc+0x9/0x10 [ 50.736991][ T539] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 50.742522][ T539] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 50.748654][ T539] ? delete_node+0x759/0x7b0 [ 50.753228][ T539] ? __kasan_check_read+0x11/0x20 [ 50.758402][ T539] ? delete_node+0x759/0x7b0 [ 50.763100][ T539] ? __kasan_check_write+0x14/0x20 [ 50.768311][ T539] ? idr_replace+0x1c4/0x230 [ 50.772899][ T539] ? idr_get_next+0x4b0/0x4b0 [ 50.777651][ T539] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 50.782688][ T539] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 50.787867][ T539] css_populate_dir+0x137/0x370 [ 50.792946][ T539] cgroup_apply_control_enable+0x8b9/0x12f0 [ 50.798827][ T539] cgroup_apply_control+0x93/0x710 [ 50.803918][ T539] ? css_next_child+0x160/0x160 [ 50.808785][ T539] ? set_next_entity+0xc5/0x390 [ 50.815455][ T539] ? io_schedule+0x120/0x120 [ 50.820036][ T539] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.825478][ T539] ? __kasan_check_write+0x14/0x20 [ 50.830565][ T539] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.835860][ T539] cgroup_subtree_control_write+0xd19/0x1310 [ 50.841827][ T539] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.847820][ T539] ? __kasan_check_write+0x14/0x20 [ 50.852930][ T539] ? _copy_from_iter+0x3fb/0xd60 [ 50.857852][ T539] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.863826][ T539] cgroup_file_write+0x28e/0x590 [ 50.868751][ T539] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.873859][ T539] ? mutex_lock+0xa6/0x110 [ 50.878264][ T539] ? mutex_trylock+0xb0/0xb0 [ 50.882844][ T539] ? __kasan_check_write+0x14/0x20 [ 50.887933][ T539] kernfs_fop_write_iter+0x2d0/0x410 [ 50.893195][ T539] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.898465][ T539] vfs_write+0xc1c/0xf40 [ 50.903044][ T539] ? kernel_write+0x3c0/0x3c0 [ 50.907800][ T539] ? mutex_trylock+0xb0/0xb0 [ 50.912463][ T539] ? __fdget_pos+0x26d/0x310 [ 50.917182][ T539] ? ksys_write+0x77/0x2c0 [ 50.921588][ T539] ksys_write+0x198/0x2c0 [ 50.925898][ T539] ? __ia32_sys_read+0x90/0x90 [ 50.930646][ T539] ? debug_smp_processor_id+0x17/0x20 [ 50.936169][ T539] __x64_sys_write+0x7b/0x90 [ 50.940774][ T539] do_syscall_64+0x34/0x70 [ 50.945265][ T539] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.951144][ T539] RIP: 0033:0x7fe4108200e9 [ 50.955546][ T539] 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 [ 50.975152][ T539] RSP: 002b:00007fe410775168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.983580][ T539] RAX: ffffffffffffffda RBX: 00007fe410933030 RCX: 00007fe4108200e9 [ 50.991549][ T539] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.999611][ T539] RBP: 00007fe4107751d0 R08: 0000000000000000 R09: 0000000000000000 [ 51.007808][ T539] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.015791][ T539] R13: 00007fffcdf413ef R14: 00007fe410775300 R15: 0000000000022000 [ 51.024504][ T539] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 51.032193][ T539] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.071027][ T390] !!!! css_release kill_css(ffff888112678c00) [ 51.077412][ T390] !!!! css_release kill_css(ffff88811267a400) [ 51.084004][ T390] !!!! css_release kill_css(ffff888112679c00) [ 51.090578][ T546] FAULT_INJECTION: forcing a failure. [ 51.090578][ T546] name failslab, interval 1, probability 0, space 0, times 0 [ 51.103300][ T546] CPU: 1 PID: 546 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 51.114833][ T546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.124870][ T546] Call Trace: [ 51.128148][ T546] dump_stack_lvl+0x1e2/0x24b [ 51.132804][ T546] ? panic+0x7d7/0x7d7 [ 51.136847][ T546] ? bfq_pos_tree_add_move+0x43e/0x43e [ 51.142284][ T546] ? find_next_bit+0xd6/0x120 [ 51.146942][ T546] ? cpumask_next+0x11/0x30 [ 51.151422][ T546] dump_stack+0x15/0x17 [ 51.155696][ T546] should_fail+0x3c0/0x510 [ 51.160098][ T546] ? percpu_ref_init+0xd0/0x330 [ 51.164931][ T546] __should_failslab+0x9f/0xe0 [ 51.169678][ T546] should_failslab+0x9/0x20 [ 51.174178][ T546] kmem_cache_alloc_trace+0x3a/0x330 [ 51.179513][ T546] percpu_ref_init+0xd0/0x330 [ 51.184186][ T546] ? cgroup_setup_root+0xea0/0xea0 [ 51.189294][ T546] cgroup_apply_control_enable+0x3a2/0x12f0 [ 51.195194][ T546] cgroup_apply_control+0x93/0x710 [ 51.200829][ T546] ? css_next_child+0x160/0x160 [ 51.205855][ T546] ? set_next_entity+0xc5/0x390 [ 51.211326][ T546] ? io_schedule+0x120/0x120 [ 51.215996][ T546] ? kernfs_fop_write_iter+0x15e/0x410 [ 51.221529][ T546] ? __kasan_check_write+0x14/0x20 [ 51.227227][ T546] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 51.232618][ T546] cgroup_subtree_control_write+0xd19/0x1310 [ 51.238580][ T546] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.244539][ T546] ? __kasan_check_write+0x14/0x20 [ 51.249811][ T546] ? _copy_from_iter+0x3fb/0xd60 [ 51.254728][ T546] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.260686][ T546] cgroup_file_write+0x28e/0x590 [ 51.265715][ T546] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.270805][ T546] ? mutex_lock+0xa6/0x110 [ 51.275206][ T546] ? mutex_trylock+0xb0/0xb0 [ 51.279779][ T546] ? __kasan_check_write+0x14/0x20 [ 51.284876][ T546] kernfs_fop_write_iter+0x2d0/0x410 [ 51.290135][ T546] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.295223][ T546] vfs_write+0xc1c/0xf40 [ 51.299446][ T546] ? kernel_write+0x3c0/0x3c0 [ 51.304096][ T546] ? mutex_trylock+0xb0/0xb0 [ 51.308693][ T546] ? __fdget_pos+0x26d/0x310 [ 51.313267][ T546] ? ksys_write+0x77/0x2c0 [ 51.317674][ T546] ksys_write+0x198/0x2c0 [ 51.321985][ T546] ? __ia32_sys_read+0x90/0x90 [ 51.326729][ T546] ? debug_smp_processor_id+0x17/0x20 [ 51.332083][ T546] __x64_sys_write+0x7b/0x90 [ 51.336659][ T546] do_syscall_64+0x34/0x70 [ 51.341073][ T546] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.346942][ T546] RIP: 0033:0x7f6d588ea0e9 [ 51.351351][ T546] 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 [ 51.370953][ T546] RSP: 002b:00007f6d5883f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.379364][ T546] RAX: ffffffffffffffda RBX: 00007f6d589fd030 RCX: 00007f6d588ea0e9 [ 51.387490][ T546] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 51.395539][ T546] RBP: 00007f6d5883f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 51.403755][ T546] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.411705][ T546] R13: 00007fff407af90f R14: 00007f6d5883f300 R15: 0000000000022000 [ 51.421045][ T546] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.441075][ T389] !!!! css_release kill_css(ffff888112f29000) [ 51.447587][ T389] !!!! css_release kill_css(ffff888112f28c00) [ 51.454077][ T559] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.454134][ T556] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.460870][ T543] FAULT_INJECTION: forcing a failure. [ 51.460870][ T543] name failslab, interval 1, probability 0, space 0, times 0 [ 51.479903][ T543] CPU: 1 PID: 543 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 51.491551][ T543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.501680][ T543] Call Trace: [ 51.504978][ T543] dump_stack_lvl+0x1e2/0x24b [ 51.509649][ T543] ? bfq_pos_tree_add_move+0x43e/0x43e [ 51.515108][ T543] ? selinux_kernfs_init_security+0x1a8/0x760 [ 51.521162][ T543] dump_stack+0x15/0x17 [ 51.525297][ T543] should_fail+0x3c0/0x510 [ 51.529687][ T543] ? __kernfs_new_node+0x99/0x6e0 [ 51.534686][ T543] __should_failslab+0x9f/0xe0 [ 51.539428][ T543] should_failslab+0x9/0x20 [ 51.544021][ T543] __kmalloc_track_caller+0x5f/0x350 [ 51.549287][ T543] kstrdup_const+0x55/0x90 [ 51.553856][ T543] __kernfs_new_node+0x99/0x6e0 [ 51.558682][ T543] ? is_module_text_address+0xe1/0x140 [ 51.564165][ T543] ? kernfs_new_node+0x170/0x170 [ 51.569078][ T543] ? ptr_to_hashval+0x60/0x60 [ 51.573731][ T543] ? arch_stack_walk+0xf8/0x140 [ 51.578556][ T543] ? snprintf+0xd6/0x120 [ 51.582773][ T543] kernfs_new_node+0x97/0x170 [ 51.587424][ T543] __kernfs_create_file+0x4a/0x270 [ 51.592555][ T543] cgroup_addrm_files+0xab8/0xfe0 [ 51.597573][ T543] ? ____kasan_kmalloc+0xdc/0x110 [ 51.602658][ T543] ? __kasan_kmalloc+0x9/0x10 [ 51.607311][ T543] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 51.612854][ T543] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 51.619073][ T543] ? delete_node+0x759/0x7b0 [ 51.623657][ T543] ? __kasan_check_read+0x11/0x20 [ 51.628657][ T543] ? delete_node+0x759/0x7b0 [ 51.633222][ T543] ? __kasan_check_write+0x14/0x20 [ 51.638322][ T543] ? idr_replace+0x1c4/0x230 [ 51.642891][ T543] ? idr_get_next+0x4b0/0x4b0 [ 51.647543][ T543] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 51.652628][ T543] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 51.657900][ T543] css_populate_dir+0x137/0x370 [ 51.662729][ T543] cgroup_apply_control_enable+0x8b9/0x12f0 [ 51.668604][ T543] cgroup_apply_control+0x93/0x710 [ 51.673699][ T543] ? css_next_child+0x160/0x160 [ 51.678559][ T543] ? io_schedule+0x120/0x120 [ 51.683151][ T543] ? kernfs_fop_write_iter+0x15e/0x410 [ 51.688594][ T543] ? __kasan_check_write+0x14/0x20 [ 51.693701][ T543] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 51.698968][ T543] cgroup_subtree_control_write+0xd19/0x1310 [ 51.704922][ T543] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.710877][ T543] ? __kasan_check_write+0x14/0x20 [ 51.715965][ T543] ? _copy_from_iter+0x3fb/0xd60 [ 51.720877][ T543] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.726828][ T543] cgroup_file_write+0x28e/0x590 [ 51.731751][ T543] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.736835][ T543] ? mutex_lock+0xa6/0x110 [ 51.741242][ T543] ? mutex_trylock+0xb0/0xb0 [ 51.745819][ T543] ? __kasan_check_write+0x14/0x20 [ 51.750906][ T543] kernfs_fop_write_iter+0x2d0/0x410 [ 51.756193][ T543] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.761365][ T543] vfs_write+0xc1c/0xf40 [ 51.765622][ T543] ? kernel_write+0x3c0/0x3c0 [ 51.770274][ T543] ? mutex_trylock+0xb0/0xb0 [ 51.774836][ T543] ? __fdget_pos+0x26d/0x310 [ 51.779400][ T543] ? ksys_write+0x77/0x2c0 [ 51.783786][ T543] ksys_write+0x198/0x2c0 [ 51.788092][ T543] ? __ia32_sys_read+0x90/0x90 [ 51.792837][ T543] ? debug_smp_processor_id+0x17/0x20 [ 51.798181][ T543] __x64_sys_write+0x7b/0x90 [ 51.803005][ T543] do_syscall_64+0x34/0x70 [ 51.807486][ T543] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.813356][ T543] RIP: 0033:0x7ff5e9f170e9 [ 51.817749][ T543] 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 [ 51.837421][ T543] RSP: 002b:00007ff5e9e8d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.845811][ T543] RAX: ffffffffffffffda RBX: 00007ff5ea029f60 RCX: 00007ff5e9f170e9 [ 51.853760][ T543] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 51.861708][ T543] RBP: 00007ff5e9e8d1d0 R08: 0000000000000000 R09: 0000000000000000 2022/06/06 19:18:29 executed programs: 42 [ 51.869651][ T543] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.877603][ T543] R13: 00007ffc4a28769f R14: 00007ff5e9e8d300 R15: 0000000000022000 [ 51.886570][ T543] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 51.893867][ T543] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.931030][ T389] !!!! css_release kill_css(ffff888113035400) [ 51.937768][ T389] !!!! css_release kill_css(ffff888113037800) [ 51.944419][ T389] !!!! css_release kill_css(ffff888113123400) [ 51.950742][ T559] FAULT_INJECTION: forcing a failure. [ 51.950742][ T559] name failslab, interval 1, probability 0, space 0, times 0 [ 51.963606][ T559] CPU: 1 PID: 559 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 51.975169][ T559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.985481][ T559] Call Trace: [ 51.988775][ T559] dump_stack_lvl+0x1e2/0x24b [ 51.993444][ T559] ? panic+0x7d7/0x7d7 [ 51.997588][ T559] ? bfq_pos_tree_add_move+0x43e/0x43e [ 52.003159][ T559] ? selinux_kernfs_init_security+0x1a8/0x760 [ 52.009377][ T559] dump_stack+0x15/0x17 [ 52.013702][ T559] should_fail+0x3c0/0x510 [ 52.018098][ T559] __should_failslab+0x9f/0xe0 [ 52.022857][ T559] should_failslab+0x9/0x20 [ 52.027334][ T559] kmem_cache_alloc+0x3f/0x300 [ 52.032075][ T559] ? __kernfs_new_node+0xdb/0x6e0 [ 52.037076][ T559] __kernfs_new_node+0xdb/0x6e0 [ 52.042003][ T559] ? is_module_text_address+0xe1/0x140 [ 52.047635][ T559] ? kernfs_new_node+0x170/0x170 [ 52.052744][ T559] ? ptr_to_hashval+0x60/0x60 [ 52.057429][ T559] ? snprintf+0xd6/0x120 [ 52.061665][ T559] ? __kasan_check_write+0x14/0x20 [ 52.066774][ T559] ? mutex_unlock+0x1d/0x40 [ 52.071374][ T559] kernfs_new_node+0x97/0x170 [ 52.076057][ T559] __kernfs_create_file+0x4a/0x270 [ 52.081303][ T559] cgroup_addrm_files+0xab8/0xfe0 [ 52.086323][ T559] ? ____kasan_kmalloc+0xdc/0x110 [ 52.091346][ T559] ? __kasan_kmalloc+0x9/0x10 [ 52.096090][ T559] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 52.101614][ T559] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 52.107745][ T559] ? delete_node+0x759/0x7b0 [ 52.112678][ T559] ? __kasan_check_read+0x11/0x20 [ 52.117707][ T559] ? idr_replace+0x1c4/0x230 [ 52.122301][ T559] ? idr_get_next+0x4b0/0x4b0 [ 52.126967][ T559] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 52.131993][ T559] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 52.137188][ T559] css_populate_dir+0x137/0x370 [ 52.142078][ T559] cgroup_apply_control_enable+0x8b9/0x12f0 [ 52.148096][ T559] cgroup_apply_control+0x93/0x710 [ 52.153686][ T559] ? css_next_child+0x160/0x160 [ 52.158626][ T559] ? io_schedule+0x120/0x120 [ 52.163406][ T559] ? kernfs_fop_write_iter+0x15e/0x410 [ 52.169563][ T559] ? __kasan_check_write+0x14/0x20 [ 52.174681][ T559] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 52.179954][ T559] cgroup_subtree_control_write+0xd19/0x1310 [ 52.185932][ T559] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.191897][ T559] ? __kasan_check_write+0x14/0x20 [ 52.196987][ T559] ? _copy_from_iter+0x3fb/0xd60 [ 52.201917][ T559] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.207884][ T559] cgroup_file_write+0x28e/0x590 [ 52.212942][ T559] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.218046][ T559] ? mutex_lock+0xa6/0x110 [ 52.222467][ T559] ? mutex_trylock+0xb0/0xb0 [ 52.227215][ T559] ? __kasan_check_write+0x14/0x20 [ 52.232311][ T559] kernfs_fop_write_iter+0x2d0/0x410 [ 52.237593][ T559] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.242687][ T559] vfs_write+0xc1c/0xf40 [ 52.246915][ T559] ? compat_start_thread+0x80/0x80 [ 52.252022][ T559] ? kernel_write+0x3c0/0x3c0 [ 52.256680][ T559] ? mutex_trylock+0xb0/0xb0 [ 52.261258][ T559] ? __fdget_pos+0x26d/0x310 [ 52.265830][ T559] ? ksys_write+0x77/0x2c0 [ 52.270239][ T559] ksys_write+0x198/0x2c0 [ 52.274579][ T559] ? __ia32_sys_read+0x90/0x90 [ 52.279330][ T559] ? debug_smp_processor_id+0x17/0x20 [ 52.284694][ T559] __x64_sys_write+0x7b/0x90 [ 52.289272][ T559] do_syscall_64+0x34/0x70 [ 52.293668][ T559] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.299624][ T559] RIP: 0033:0x7f6d588ea0e9 [ 52.304108][ T559] 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 [ 52.323891][ T559] RSP: 002b:00007f6d58860168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 52.332284][ T559] RAX: ffffffffffffffda RBX: 00007f6d589fcf60 RCX: 00007f6d588ea0e9 [ 52.340323][ T559] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 52.348278][ T559] RBP: 00007f6d588601d0 R08: 0000000000000000 R09: 0000000000000000 [ 52.356325][ T559] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 52.364281][ T559] R13: 00007fff407af90f R14: 00007f6d58860300 R15: 0000000000022000 [ 52.372782][ T559] cgroup: cgroup_addrm_files: failed to add events, err=-12 [ 52.380253][ T559] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 52.389018][ T420] ------------[ cut here ]------------ [ 52.394523][ T420] WARNING: CPU: 0 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 52.403464][ T420] Modules linked in: [ 52.407364][ T420] CPU: 0 PID: 420 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 52.418912][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.418936][ T389] !!!! css_release kill_css(ffff88811315d400) [ 52.428979][ T420] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 52.428988][ T420] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 52.429001][ T420] RSP: 0018:ffffc90000bd7ba0 EFLAGS: 00010293 [ 52.440813][ T389] !!!! css_release kill_css(ffff88811315c800) [ 52.460526][ T420] [ 52.460536][ T420] RAX: ffffffff81b68b0a RBX: 00000000ffffffff RCX: ffff88810c6acf00 [ 52.460541][ T420] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 52.460547][ T420] RBP: ffffc90000bd7c70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 52.460553][ T420] R10: fffff5200017af65 R11: 1ffff9200017af64 R12: dffffc0000000000 [ 52.460559][ T420] R13: ffff88811156fdc0 R14: ffffc90000bd7c00 R15: 1ffff9200017af7c [ 52.460568][ T420] FS: 0000555556876400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 52.460574][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.460580][ T420] CR2: 000055555687fb38 CR3: 000000011d307000 CR4: 00000000003506b0 [ 52.460588][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.460594][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.460597][ T420] Call Trace: [ 52.460612][ T420] ? io_schedule+0x120/0x120 [ 52.460623][ T420] ? vfs_submount+0xb0/0xb0 [ 52.460633][ T420] ? shrink_dentry_list+0x4ec/0x500 [ 52.460643][ T420] namespace_unlock+0x448/0x4f0 [ 52.460653][ T420] ? umount_tree+0xf50/0xf50 [ 52.460661][ T420] ? __detach_mounts+0x670/0x670 [ 52.460670][ T420] ? selinux_umount+0xf0/0x130 [ 52.460679][ T420] path_umount+0xf03/0xfb0 [ 52.460697][ T420] ? namespace_unlock+0x4f0/0x4f0 [ 52.460707][ T420] ? user_path_at_empty+0x40/0x50 [ 52.460717][ T420] __x64_sys_umount+0x122/0x170 [ 52.460726][ T420] ? path_umount+0xfb0/0xfb0 [ 52.460734][ T420] ? debug_smp_processor_id+0x17/0x20 [ 52.460744][ T420] do_syscall_64+0x34/0x70 [ 52.460753][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.460760][ T420] RIP: 0033:0x7f6d588eb557 [ 52.460770][ T420] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 52.460776][ T420] RSP: 002b:00007fff407aea68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 52.460788][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6d588eb557 [ 52.460795][ T420] RDX: 00007fff407aeb39 RSI: 000000000000000a RDI: 00007fff407aeb30 [ 52.460801][ T420] RBP: 00007fff407aeb30 R08: 00000000ffffffff R09: 00007fff407ae900 [ 52.460806][ T420] R10: 0000555556877ba3 R11: 0000000000000246 R12: 00007f6d589431f8 [ 52.460816][ T420] R13: 00007fff407afbf0 R14: 0000555556877b00 R15: 00007fff407afc30 [ 52.469729][ T551] FAULT_INJECTION: forcing a failure. [ 52.469729][ T551] name failslab, interval 1, probability 0, space 0, times 0 [ 52.474047][ T420] ---[ end trace 9cc038e294c8c14f ]--- [ 52.475805][ T551] CPU: 1 PID: 551 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 52.484181][ T420] ------------[ cut here ]------------ [ 52.491651][ T551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.491655][ T551] Call Trace: [ 52.491671][ T551] dump_stack_lvl+0x1e2/0x24b [ 52.491679][ T551] ? panic+0x7d7/0x7d7 [ 52.491688][ T551] ? bfq_pos_tree_add_move+0x43e/0x43e [ 52.491704][ T551] ? find_next_bit+0xd6/0x120 [ 52.499670][ T420] WARNING: CPU: 0 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 52.507614][ T551] ? cpumask_next+0x11/0x30 [ 52.507624][ T551] dump_stack+0x15/0x17 [ 52.507638][ T551] should_fail+0x3c0/0x510 [ 52.516020][ T420] Modules linked in: [ 52.525110][ T551] ? percpu_ref_init+0xd0/0x330 [ 52.525120][ T551] __should_failslab+0x9f/0xe0 [ 52.525135][ T551] should_failslab+0x9/0x20 [ 52.531701][ T420] [ 52.539647][ T551] kmem_cache_alloc_trace+0x3a/0x330 [ 52.547603][ T420] CPU: 0 PID: 420 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 52.555535][ T551] percpu_ref_init+0xd0/0x330 [ 52.555552][ T551] ? cgroup_setup_root+0xea0/0xea0 [ 52.558881][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.563528][ T551] cgroup_apply_control_enable+0x3a2/0x12f0 [ 52.563544][ T551] cgroup_apply_control+0x93/0x710 [ 52.568117][ T420] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 52.573313][ T551] ? css_next_child+0x160/0x160 [ 52.573322][ T551] ? set_next_entity+0xc5/0x390 [ 52.573337][ T551] ? io_schedule+0x120/0x120 [ 52.578160][ T420] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 52.582715][ T551] ? kernfs_fop_write_iter+0x15e/0x410 [ 52.582724][ T551] ? __kasan_check_write+0x14/0x20 [ 52.582738][ T551] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 52.587645][ T420] RSP: 0018:ffffc90000bd7ca0 EFLAGS: 00010293 [ 52.592393][ T551] cgroup_subtree_control_write+0xd19/0x1310 [ 52.592410][ T551] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.596790][ T420] [ 52.601813][ T551] ? __kasan_check_write+0x14/0x20 [ 52.601822][ T551] ? _copy_from_iter+0x3fb/0xd60 [ 52.601837][ T551] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.606829][ T420] RAX: ffffffff81b68b0a RBX: 00000000fffffffe RCX: ffff88810c6acf00 [ 52.611659][ T551] cgroup_file_write+0x28e/0x590 [ 52.611668][ T551] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.611686][ T551] ? mutex_lock+0xa6/0x110 [ 52.616247][ T420] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 52.621584][ T551] ? mutex_trylock+0xb0/0xb0 [ 52.621593][ T551] ? __kasan_check_write+0x14/0x20 [ 52.621607][ T551] kernfs_fop_write_iter+0x2d0/0x410 [ 52.625996][ T420] RBP: ffffc90000bd7d70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 52.631866][ T551] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.631876][ T551] vfs_write+0xc1c/0xf40 [ 52.631890][ T551] ? kernel_write+0x3c0/0x3c0 [ 52.636277][ T420] R10: fffff5200017af85 R11: 1ffff9200017af84 R12: dffffc0000000000 [ 52.656024][ T551] ? mutex_trylock+0xb0/0xb0 [ 52.656034][ T551] ? __fdget_pos+0x26d/0x310 [ 52.656048][ T551] ? ksys_write+0x77/0x2c0 [ 52.664443][ T420] R13: ffff88811156fdc0 R14: ffffc90000bd7d00 R15: 1ffff9200017af9c [ 52.672381][ T551] ksys_write+0x198/0x2c0 [ 52.672396][ T551] ? __ia32_sys_read+0x90/0x90 [ 52.680345][ T420] FS: 0000555556876400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 52.688329][ T551] ? debug_smp_processor_id+0x17/0x20 [ 52.688338][ T551] __x64_sys_write+0x7b/0x90 [ 52.688354][ T551] do_syscall_64+0x34/0x70 [ 52.696319][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.704256][ T551] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.704270][ T551] RIP: 0033:0x7f6c01dab0e9 [ 52.716930][ T420] CR2: 000055555687fb38 CR3: 000000011d307000 CR4: 00000000003506b0 [ 52.722426][ T551] 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 [ 52.722438][ T551] RSP: 002b:00007f6c01d00168 EFLAGS: 00000246 [ 52.734125][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.739546][ T551] ORIG_RAX: 0000000000000001 [ 52.749597][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.752841][ T551] RAX: ffffffffffffffda RBX: 00007f6c01ebe030 RCX: 00007f6c01dab0e9 [ 52.752847][ T551] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 52.752859][ T551] RBP: 00007f6c01d001d0 R08: 0000000000000000 R09: 0000000000000000 [ 52.757500][ T420] Call Trace: [ 52.761535][ T551] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 52.761542][ T551] R13: 00007ffe3bc55f7f R14: 00007f6c01d00300 R15: 0000000000022000 [ 53.091923][ T551] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 53.208656][ T420] ? lockref_get_or_lock+0x340/0x340 [ 53.213974][ T420] ? umount_tree+0xf50/0xf50 [ 53.218545][ T420] ? vfs_submount+0xb0/0xb0 [ 53.223046][ T420] ? dput+0x2b6/0x320 [ 53.227008][ T420] path_umount+0x1fe/0xfb0 [ 53.231429][ T420] ? namespace_unlock+0x4f0/0x4f0 [ 53.236457][ T420] ? user_path_at_empty+0x40/0x50 [ 53.241477][ T420] __x64_sys_umount+0x122/0x170 [ 53.246305][ T420] ? path_umount+0xfb0/0xfb0 [ 53.250906][ T420] ? debug_smp_processor_id+0x17/0x20 [ 53.256267][ T420] do_syscall_64+0x34/0x70 [ 53.260667][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.266568][ T420] RIP: 0033:0x7f6d588eb557 [ 53.270977][ T420] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.290935][ T420] RSP: 002b:00007fff407aea68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 53.299331][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6d588eb557 [ 53.307303][ T420] RDX: 00007fff407aeb39 RSI: 000000000000000a RDI: 00007fff407aeb30 [ 53.315300][ T420] RBP: 00007fff407aeb30 R08: 00000000ffffffff R09: 00007fff407ae900 [ 53.323309][ T420] R10: 0000555556877ba3 R11: 0000000000000246 R12: 00007f6d589431f8 [ 53.331291][ T420] R13: 00007fff407afbf0 R14: 0000555556877b00 R15: 00007fff407afc30 [ 53.339358][ T420] ---[ end trace 9cc038e294c8c150 ]--- [ 53.391150][ T390] !!!! css_release kill_css(ffff88811338ec00) [ 53.397670][ T390] !!!! css_release kill_css(ffff88811338f400) [ 53.404261][ T538] FAULT_INJECTION: forcing a failure. [ 53.404261][ T538] name failslab, interval 1, probability 0, space 0, times 0 [ 53.417106][ T538] CPU: 0 PID: 538 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 53.428728][ T538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.439142][ T538] Call Trace: [ 53.442465][ T538] dump_stack_lvl+0x1e2/0x24b [ 53.447134][ T538] ? bfq_pos_tree_add_move+0x43e/0x43e [ 53.452580][ T538] ? selinux_kernfs_init_security+0x1a8/0x760 [ 53.458717][ T538] dump_stack+0x15/0x17 [ 53.462854][ T538] should_fail+0x3c0/0x510 [ 53.467247][ T538] ? __kernfs_new_node+0x99/0x6e0 [ 53.472343][ T538] __should_failslab+0x9f/0xe0 [ 53.477095][ T538] should_failslab+0x9/0x20 [ 53.481619][ T538] __kmalloc_track_caller+0x5f/0x350 [ 53.486900][ T538] kstrdup_const+0x55/0x90 [ 53.491405][ T538] __kernfs_new_node+0x99/0x6e0 [ 53.496286][ T538] ? is_module_text_address+0xe1/0x140 [ 53.501815][ T538] ? kernfs_new_node+0x170/0x170 [ 53.506753][ T538] ? ptr_to_hashval+0x60/0x60 [ 53.511478][ T538] ? arch_stack_walk+0xf8/0x140 [ 53.516502][ T538] ? snprintf+0xd6/0x120 [ 53.520848][ T538] kernfs_new_node+0x97/0x170 [ 53.525602][ T538] __kernfs_create_file+0x4a/0x270 [ 53.530725][ T538] cgroup_addrm_files+0xab8/0xfe0 [ 53.536090][ T538] ? ____kasan_kmalloc+0xdc/0x110 [ 53.541102][ T538] ? __kasan_kmalloc+0x9/0x10 [ 53.546067][ T538] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 53.551599][ T538] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 53.557916][ T538] ? delete_node+0x759/0x7b0 [ 53.562494][ T538] ? __kasan_check_read+0x11/0x20 [ 53.567509][ T538] ? delete_node+0x759/0x7b0 [ 53.572077][ T538] ? __kasan_check_write+0x14/0x20 [ 53.577269][ T538] ? idr_replace+0x1c4/0x230 [ 53.581833][ T538] ? idr_get_next+0x4b0/0x4b0 [ 53.586484][ T538] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 53.591484][ T538] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 53.596657][ T538] css_populate_dir+0x137/0x370 [ 53.601488][ T538] cgroup_apply_control_enable+0x8b9/0x12f0 [ 53.607451][ T538] cgroup_apply_control+0x93/0x710 [ 53.612627][ T538] ? css_next_child+0x160/0x160 [ 53.617454][ T538] ? io_schedule+0x120/0x120 [ 53.622026][ T538] ? kernfs_fop_write_iter+0x15e/0x410 [ 53.627461][ T538] ? __kasan_check_write+0x14/0x20 [ 53.632551][ T538] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 53.637814][ T538] cgroup_subtree_control_write+0xd19/0x1310 [ 53.643773][ T538] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 53.649725][ T538] ? __kasan_check_write+0x14/0x20 [ 53.654813][ T538] ? _copy_from_iter+0x3fb/0xd60 [ 53.659724][ T538] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 53.665675][ T538] cgroup_file_write+0x28e/0x590 [ 53.670586][ T538] ? cgroup_seqfile_stop+0xc0/0xc0 [ 53.675772][ T538] ? mutex_lock+0xa6/0x110 [ 53.680163][ T538] ? mutex_trylock+0xb0/0xb0 [ 53.684743][ T538] ? __kasan_check_write+0x14/0x20 [ 53.689840][ T538] kernfs_fop_write_iter+0x2d0/0x410 [ 53.695195][ T538] ? cgroup_seqfile_stop+0xc0/0xc0 [ 53.700305][ T538] vfs_write+0xc1c/0xf40 [ 53.704619][ T538] ? kernel_write+0x3c0/0x3c0 [ 53.709272][ T538] ? mutex_trylock+0xb0/0xb0 [ 53.713978][ T538] ? __fdget_pos+0x26d/0x310 [ 53.718631][ T538] ? ksys_write+0x77/0x2c0 [ 53.724603][ T538] ksys_write+0x198/0x2c0 [ 53.728911][ T538] ? __ia32_sys_read+0x90/0x90 [ 53.733650][ T538] ? debug_smp_processor_id+0x17/0x20 [ 53.739021][ T538] __x64_sys_write+0x7b/0x90 [ 53.743586][ T538] do_syscall_64+0x34/0x70 [ 53.747982][ T538] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.753972][ T538] RIP: 0033:0x7f21333640e9 [ 53.758365][ T538] 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 [ 53.778034][ T538] RSP: 002b:00007f21332da168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 53.786553][ T538] RAX: ffffffffffffffda RBX: 00007f2133476f60 RCX: 00007f21333640e9 [ 53.794590][ T538] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 53.804304][ T538] RBP: 00007f21332da1d0 R08: 0000000000000000 R09: 0000000000000000 [ 53.812400][ T538] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 53.820352][ T538] R13: 00007ffd7c682e4f R14: 00007f21332da300 R15: 0000000000022000 [ 53.829643][ T538] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 53.837290][ T538] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 53.870980][ T391] !!!! css_release kill_css(ffff888113395400) [ 53.877470][ T391] !!!! css_release kill_css(ffff888113394800) [ 53.884191][ T391] !!!! css_release kill_css(ffff888113396800) [ 53.890592][ T567] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 53.897471][ T557] FAULT_INJECTION: forcing a failure. [ 53.897471][ T557] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 53.911107][ T557] CPU: 0 PID: 557 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 53.922895][ T557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.933055][ T557] Call Trace: [ 53.936437][ T557] dump_stack_lvl+0x1e2/0x24b [ 53.941118][ T557] ? bfq_pos_tree_add_move+0x43e/0x43e [ 53.946593][ T557] ? __kasan_check_write+0x14/0x20 [ 53.951696][ T557] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 53.956801][ T557] dump_stack+0x15/0x17 [ 53.960945][ T557] should_fail+0x3c0/0x510 [ 53.965459][ T557] should_fail_alloc_page+0x50/0x60 [ 53.970723][ T557] __alloc_pages_nodemask+0x1c0/0x890 [ 53.976081][ T557] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 53.982313][ T557] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 53.987839][ T557] allocate_slab+0x78/0x540 [ 53.992339][ T557] ___slab_alloc+0x131/0x2e0 [ 53.996962][ T557] ? pids_css_alloc+0x4e/0x120 [ 54.001806][ T557] __slab_alloc+0x63/0xa0 [ 54.006239][ T557] ? pids_css_alloc+0x4e/0x120 [ 54.011007][ T557] kmem_cache_alloc_trace+0x20e/0x330 [ 54.016376][ T557] ? pids_css_alloc+0x4e/0x120 [ 54.021224][ T557] pids_css_alloc+0x4e/0x120 [ 54.025800][ T557] cgroup_apply_control_enable+0x350/0x12f0 [ 54.031684][ T557] cgroup_apply_control+0x93/0x710 [ 54.037064][ T557] ? css_next_child+0x160/0x160 [ 54.041907][ T557] ? set_next_entity+0xc5/0x390 [ 54.046779][ T557] ? io_schedule+0x120/0x120 [ 54.051372][ T557] ? kernfs_fop_write_iter+0x15e/0x410 [ 54.056821][ T557] ? __kasan_check_write+0x14/0x20 [ 54.061984][ T557] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 54.067274][ T557] cgroup_subtree_control_write+0xd19/0x1310 [ 54.073236][ T557] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 54.079205][ T557] ? __kasan_check_write+0x14/0x20 [ 54.084472][ T557] ? _copy_from_iter+0x3fb/0xd60 [ 54.089479][ T557] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 54.095623][ T557] cgroup_file_write+0x28e/0x590 [ 54.100540][ T557] ? cgroup_seqfile_stop+0xc0/0xc0 [ 54.105643][ T557] ? mutex_lock+0xa6/0x110 [ 54.110045][ T557] ? mutex_trylock+0xb0/0xb0 [ 54.114897][ T557] ? __kasan_check_write+0x14/0x20 [ 54.119997][ T557] kernfs_fop_write_iter+0x2d0/0x410 [ 54.125291][ T557] ? cgroup_seqfile_stop+0xc0/0xc0 [ 54.130389][ T557] vfs_write+0xc1c/0xf40 [ 54.134623][ T557] ? kernel_write+0x3c0/0x3c0 [ 54.139280][ T557] ? mutex_trylock+0xb0/0xb0 [ 54.143938][ T557] ? __fdget_pos+0x26d/0x310 [ 54.148507][ T557] ? ksys_write+0x77/0x2c0 [ 54.153007][ T557] ksys_write+0x198/0x2c0 [ 54.157322][ T557] ? __ia32_sys_read+0x90/0x90 [ 54.162084][ T557] ? debug_smp_processor_id+0x17/0x20 [ 54.167446][ T557] __x64_sys_write+0x7b/0x90 [ 54.172340][ T557] do_syscall_64+0x34/0x70 [ 54.176739][ T557] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.182611][ T557] RIP: 0033:0x7fe4108200e9 [ 54.187011][ T557] 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 [ 54.206870][ T557] RSP: 002b:00007fe410775168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 54.215393][ T557] RAX: ffffffffffffffda RBX: 00007fe410933030 RCX: 00007fe4108200e9 [ 54.223347][ T557] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 54.231316][ T557] RBP: 00007fe4107751d0 R08: 0000000000000000 R09: 0000000000000000 [ 54.239271][ T557] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 54.247244][ T557] R13: 00007fffcdf413ef R14: 00007fe410775300 R15: 0000000000022000 [ 54.257146][ T557] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 54.257177][ T554] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 54.267119][ T563] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 54.277007][ T430] ------------[ cut here ]------------ [ 54.282506][ T430] WARNING: CPU: 1 PID: 430 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 54.291455][ T430] Modules linked in: [ 54.295455][ T430] CPU: 1 PID: 430 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 54.307097][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.317305][ T430] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 54.322966][ T430] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 54.342671][ T430] RSP: 0018:ffffc90000f67ba0 EFLAGS: 00010293 [ 54.348903][ T430] RAX: ffffffff81b68b0a RBX: 00000000fffffffd RCX: ffff88810c6abb40 [ 54.357105][ T430] RDX: 0000000000000000 RSI: 00000000fffffffd RDI: 0000000000000000 [ 54.365160][ T430] RBP: ffffc90000f67c70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 54.373187][ T430] R10: fffff520001ecf65 R11: 1ffff920001ecf64 R12: dffffc0000000000 [ 54.381330][ T430] R13: ffff88811156fa40 R14: ffffc90000f67c00 R15: 1ffff920001ecf7c [ 54.389492][ T430] FS: 00005555567b2400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 54.398621][ T430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.405309][ T430] CR2: 00007fffcdf3fe08 CR3: 000000010a0d4000 CR4: 00000000003506a0 [ 54.413402][ T430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.421458][ T430] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.429425][ T430] Call Trace: [ 54.432752][ T430] ? io_schedule+0x120/0x120 [ 54.437323][ T430] ? vfs_submount+0xb0/0xb0 [ 54.441813][ T430] ? shrink_dentry_list+0x4ec/0x500 [ 54.447183][ T430] namespace_unlock+0x448/0x4f0 [ 54.452095][ T430] ? umount_tree+0xf50/0xf50 [ 54.456672][ T430] ? __detach_mounts+0x670/0x670 [ 54.461602][ T430] ? selinux_umount+0xf0/0x130 [ 54.466428][ T430] path_umount+0xf03/0xfb0 [ 54.470864][ T430] ? namespace_unlock+0x4f0/0x4f0 [ 54.475891][ T430] ? user_path_at_empty+0x40/0x50 [ 54.481015][ T430] __x64_sys_umount+0x122/0x170 [ 54.485843][ T430] ? path_umount+0xfb0/0xfb0 [ 54.490423][ T430] do_syscall_64+0x34/0x70 [ 54.494836][ T430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.500700][ T430] RIP: 0033:0x7fe78c1db557 [ 54.505187][ T430] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 54.525388][ T430] RSP: 002b:00007ffe83e073c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 54.533916][ T430] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe78c1db557 [ 54.541907][ T430] RDX: 00007ffe83e07499 RSI: 000000000000000a RDI: 00007ffe83e07490 [ 54.549856][ T430] RBP: 00007ffe83e07490 R08: 00000000ffffffff R09: 00007ffe83e07260 [ 54.557843][ T430] R10: 00005555567b3ba3 R11: 0000000000000246 R12: 00007fe78c2331f8 [ 54.565846][ T430] R13: 00007ffe83e08550 R14: 00005555567b3b00 R15: 00007ffe83e08590 [ 54.573918][ T430] ---[ end trace 9cc038e294c8c151 ]--- [ 54.579872][ T430] ------------[ cut here ]------------ [ 54.585443][ T430] WARNING: CPU: 1 PID: 430 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 54.594466][ T430] Modules linked in: [ 54.598342][ T430] CPU: 1 PID: 430 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 54.609892][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.619966][ T430] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 54.625592][ T430] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 54.645296][ T430] RSP: 0018:ffffc90000f67ca0 EFLAGS: 00010293 [ 54.651488][ T430] RAX: ffffffff81b68b0a RBX: 00000000fffffffc RCX: ffff88810c6abb40 [ 54.659528][ T430] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: 0000000000000000 [ 54.667496][ T430] RBP: ffffc90000f67d70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 54.675455][ T430] R10: fffff520001ecf85 R11: 1ffff920001ecf84 R12: dffffc0000000000 [ 54.683420][ T430] R13: ffff88811156fa40 R14: ffffc90000f67d00 R15: 1ffff920001ecf9c [ 54.691385][ T430] FS: 00005555567b2400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 54.700409][ T430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.707003][ T430] CR2: 00007fffcdf3fe08 CR3: 000000010a0d4000 CR4: 00000000003506a0 [ 54.715165][ T430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.723395][ T430] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.731436][ T430] Call Trace: [ 54.734970][ T430] ? lockref_get_or_lock+0x340/0x340 [ 54.740349][ T430] ? umount_tree+0xf50/0xf50 [ 54.745051][ T430] ? vfs_submount+0xb0/0xb0 [ 54.749749][ T430] ? dput+0x2b6/0x320 [ 54.753729][ T430] path_umount+0x1fe/0xfb0 [ 54.758133][ T430] ? namespace_unlock+0x4f0/0x4f0 [ 54.763346][ T430] ? user_path_at_empty+0x40/0x50 [ 54.768364][ T430] __x64_sys_umount+0x122/0x170 [ 54.773230][ T430] ? path_umount+0xfb0/0xfb0 [ 54.777805][ T430] do_syscall_64+0x34/0x70 [ 54.782210][ T430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.788086][ T430] RIP: 0033:0x7fe78c1db557 [ 54.792489][ T430] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 54.812094][ T430] RSP: 002b:00007ffe83e073c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 54.820595][ T430] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe78c1db557 [ 54.828584][ T430] RDX: 00007ffe83e07499 RSI: 000000000000000a RDI: 00007ffe83e07490 [ 54.836650][ T430] RBP: 00007ffe83e07490 R08: 00000000ffffffff R09: 00007ffe83e07260 [ 54.844610][ T430] R10: 00005555567b3ba3 R11: 0000000000000246 R12: 00007fe78c2331f8 [ 54.852614][ T430] R13: 00007ffe83e08550 R14: 00005555567b3b00 R15: 00007ffe83e08590 [ 54.860566][ T430] ---[ end trace 9cc038e294c8c152 ]--- [ 54.870964][ T23] audit: type=1400 audit(1654543112.179:161): avc: denied { unlink } for pid=142 comm="syslogd" name="messages.0" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 54.882209][ T390] !!!! css_release kill_css(ffff8881135e5800) [ 54.899858][ T390] !!!! css_release kill_css(ffff8881135e6000) [ 54.906382][ T390] !!!! css_release kill_css(ffff8881132b0c00) [ 54.912703][ T390] !!!! css_release kill_css(ffff8881132b0400) [ 54.919613][ T390] !!!! css_release kill_css(ffff8881132b0000) [ 54.926242][ T390] !!!! css_release kill_css(ffff8881132b0800) [ 54.933006][ T562] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 54.933120][ T569] FAULT_INJECTION: forcing a failure. [ 54.933120][ T569] name failslab, interval 1, probability 0, space 0, times 0 [ 54.952549][ T569] CPU: 0 PID: 569 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 54.964900][ T569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.975142][ T569] Call Trace: [ 54.978420][ T569] dump_stack_lvl+0x1e2/0x24b [ 54.983189][ T569] ? bfq_pos_tree_add_move+0x43e/0x43e [ 54.988655][ T569] ? selinux_kernfs_init_security+0x1a8/0x760 [ 54.994705][ T569] dump_stack+0x15/0x17 [ 54.998849][ T569] should_fail+0x3c0/0x510 [ 55.003268][ T569] ? __kernfs_new_node+0x99/0x6e0 [ 55.008284][ T569] __should_failslab+0x9f/0xe0 [ 55.013028][ T569] should_failslab+0x9/0x20 [ 55.017522][ T569] __kmalloc_track_caller+0x5f/0x350 [ 55.022796][ T569] kstrdup_const+0x55/0x90 [ 55.027197][ T569] __kernfs_new_node+0x99/0x6e0 [ 55.032209][ T569] ? is_module_text_address+0xe1/0x140 [ 55.037655][ T569] ? kernfs_new_node+0x170/0x170 [ 55.042942][ T569] ? ptr_to_hashval+0x60/0x60 [ 55.047606][ T569] ? arch_stack_walk+0xf8/0x140 [ 55.052441][ T569] ? snprintf+0xd6/0x120 [ 55.056665][ T569] kernfs_new_node+0x97/0x170 [ 55.061318][ T569] __kernfs_create_file+0x4a/0x270 [ 55.066405][ T569] cgroup_addrm_files+0xab8/0xfe0 [ 55.071406][ T569] ? ____kasan_kmalloc+0xdc/0x110 [ 55.076429][ T569] ? __kasan_kmalloc+0x9/0x10 [ 55.081269][ T569] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 55.086981][ T569] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 55.093295][ T569] ? delete_node+0x759/0x7b0 [ 55.097869][ T569] ? __kasan_check_read+0x11/0x20 [ 55.103114][ T569] ? delete_node+0x759/0x7b0 [ 55.107684][ T569] ? __kasan_check_write+0x14/0x20 [ 55.112863][ T569] ? idr_replace+0x1c4/0x230 [ 55.117442][ T569] ? idr_get_next+0x4b0/0x4b0 [ 55.122298][ T569] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 55.127312][ T569] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 55.132505][ T569] css_populate_dir+0x137/0x370 [ 55.137356][ T569] cgroup_apply_control_enable+0x8b9/0x12f0 [ 55.143231][ T569] cgroup_apply_control+0x93/0x710 [ 55.148372][ T569] ? css_next_child+0x160/0x160 [ 55.153213][ T569] ? dequeue_task_fair+0x7ad/0xb50 [ 55.158333][ T569] ? io_schedule+0x120/0x120 [ 55.162933][ T569] ? kernfs_fop_write_iter+0x15e/0x410 [ 55.168459][ T569] ? __kasan_check_write+0x14/0x20 [ 55.173546][ T569] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 55.178826][ T569] cgroup_subtree_control_write+0xd19/0x1310 [ 55.184783][ T569] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.190739][ T569] ? __kasan_check_write+0x14/0x20 [ 55.195835][ T569] ? _copy_from_iter+0x3fb/0xd60 [ 55.200771][ T569] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.206813][ T569] cgroup_file_write+0x28e/0x590 [ 55.211825][ T569] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.216934][ T569] ? mutex_lock+0xa6/0x110 [ 55.221425][ T569] ? mutex_trylock+0xb0/0xb0 [ 55.226002][ T569] ? __kasan_check_write+0x14/0x20 [ 55.231182][ T569] kernfs_fop_write_iter+0x2d0/0x410 [ 55.238704][ T569] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.244055][ T569] vfs_write+0xc1c/0xf40 [ 55.248363][ T569] ? kernel_write+0x3c0/0x3c0 [ 55.253018][ T569] ? mutex_trylock+0xb0/0xb0 [ 55.257682][ T569] ? __fdget_pos+0x26d/0x310 [ 55.262285][ T569] ? ksys_write+0x77/0x2c0 [ 55.266703][ T569] ksys_write+0x198/0x2c0 [ 55.271031][ T569] ? __ia32_sys_read+0x90/0x90 [ 55.275800][ T569] ? debug_smp_processor_id+0x17/0x20 [ 55.281159][ T569] __x64_sys_write+0x7b/0x90 [ 55.285731][ T569] do_syscall_64+0x34/0x70 [ 55.290128][ T569] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.295996][ T569] RIP: 0033:0x7f6d588ea0e9 [ 55.300399][ T569] 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 [ 55.320000][ T569] RSP: 002b:00007f6d5883f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 55.328573][ T569] RAX: ffffffffffffffda RBX: 00007f6d589fd030 RCX: 00007f6d588ea0e9 [ 55.336525][ T569] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 55.344579][ T569] RBP: 00007f6d5883f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 55.352541][ T569] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 55.360602][ T569] R13: 00007fff407af90f R14: 00007f6d5883f300 R15: 0000000000022000 [ 55.369485][ T569] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 55.376925][ T569] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 55.400975][ T389] !!!! css_release kill_css(ffff888113607400) [ 55.407456][ T389] !!!! css_release kill_css(ffff888113605000) [ 55.414002][ T389] !!!! css_release kill_css(ffff888113604c00) [ 55.420337][ T567] FAULT_INJECTION: forcing a failure. [ 55.420337][ T567] name failslab, interval 1, probability 0, space 0, times 0 [ 55.433033][ T567] CPU: 1 PID: 567 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 55.444663][ T567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.454791][ T567] Call Trace: [ 55.458152][ T567] dump_stack_lvl+0x1e2/0x24b [ 55.462913][ T567] ? bfq_pos_tree_add_move+0x43e/0x43e [ 55.468353][ T567] ? selinux_kernfs_init_security+0x1a8/0x760 [ 55.474507][ T567] dump_stack+0x15/0x17 [ 55.478642][ T567] should_fail+0x3c0/0x510 [ 55.483078][ T567] ? __kernfs_new_node+0x99/0x6e0 [ 55.488127][ T567] __should_failslab+0x9f/0xe0 [ 55.492875][ T567] should_failslab+0x9/0x20 [ 55.497366][ T567] __kmalloc_track_caller+0x5f/0x350 [ 55.503231][ T567] kstrdup_const+0x55/0x90 [ 55.507758][ T567] __kernfs_new_node+0x99/0x6e0 [ 55.512680][ T567] ? is_module_text_address+0xe1/0x140 [ 55.518313][ T567] ? kernfs_new_node+0x170/0x170 [ 55.523242][ T567] ? ptr_to_hashval+0x60/0x60 [ 55.527919][ T567] ? arch_stack_walk+0xf8/0x140 [ 55.532761][ T567] ? snprintf+0xd6/0x120 [ 55.536987][ T567] kernfs_new_node+0x97/0x170 [ 55.541745][ T567] __kernfs_create_file+0x4a/0x270 [ 55.546839][ T567] cgroup_addrm_files+0xab8/0xfe0 [ 55.552214][ T567] ? ____kasan_kmalloc+0xdc/0x110 [ 55.557223][ T567] ? __kasan_kmalloc+0x9/0x10 [ 55.561904][ T567] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 55.568091][ T567] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 55.574252][ T567] ? delete_node+0x759/0x7b0 [ 55.578853][ T567] ? __kasan_check_read+0x11/0x20 [ 55.583858][ T567] ? delete_node+0x759/0x7b0 [ 55.588428][ T567] ? __kasan_check_write+0x14/0x20 [ 55.594051][ T567] ? idr_replace+0x1c4/0x230 [ 55.598636][ T567] ? idr_get_next+0x4b0/0x4b0 [ 55.603298][ T567] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 55.608325][ T567] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 55.613509][ T567] css_populate_dir+0x137/0x370 [ 55.618735][ T567] cgroup_apply_control_enable+0x8b9/0x12f0 [ 55.624725][ T567] cgroup_apply_control+0x93/0x710 [ 55.629920][ T567] ? css_next_child+0x160/0x160 [ 55.634790][ T567] ? io_schedule+0x120/0x120 [ 55.639453][ T567] ? kernfs_fop_write_iter+0x15e/0x410 [ 55.644948][ T567] ? __kasan_check_write+0x14/0x20 [ 55.650161][ T567] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 55.655636][ T567] cgroup_subtree_control_write+0xd19/0x1310 [ 55.661619][ T567] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.667728][ T567] ? __kasan_check_write+0x14/0x20 [ 55.672819][ T567] ? _copy_from_iter+0x3fb/0xd60 [ 55.677736][ T567] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.683869][ T567] cgroup_file_write+0x28e/0x590 [ 55.688785][ T567] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.693977][ T567] ? mutex_lock+0xa6/0x110 [ 55.698369][ T567] ? mutex_trylock+0xb0/0xb0 [ 55.702937][ T567] ? __kasan_check_write+0x14/0x20 [ 55.708034][ T567] kernfs_fop_write_iter+0x2d0/0x410 [ 55.713317][ T567] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.718528][ T567] vfs_write+0xc1c/0xf40 [ 55.722775][ T567] ? kernel_write+0x3c0/0x3c0 [ 55.727436][ T567] ? mutex_trylock+0xb0/0xb0 [ 55.732011][ T567] ? __fdget_pos+0x26d/0x310 [ 55.736593][ T567] ? ksys_write+0x77/0x2c0 [ 55.741073][ T567] ksys_write+0x198/0x2c0 [ 55.745394][ T567] ? __ia32_sys_read+0x90/0x90 [ 55.750225][ T567] ? debug_smp_processor_id+0x17/0x20 [ 55.755711][ T567] __x64_sys_write+0x7b/0x90 [ 55.760301][ T567] do_syscall_64+0x34/0x70 [ 55.764710][ T567] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.770578][ T567] RIP: 0033:0x7f21333640e9 [ 55.774973][ T567] 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 [ 55.794559][ T567] RSP: 002b:00007f21332da168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 55.803139][ T567] RAX: ffffffffffffffda RBX: 00007f2133476f60 RCX: 00007f21333640e9 [ 55.811105][ T567] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 55.819073][ T567] RBP: 00007f21332da1d0 R08: 0000000000000000 R09: 0000000000000000 [ 55.827038][ T567] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 55.835023][ T567] R13: 00007ffd7c682e4f R14: 00007f21332da300 R15: 0000000000022000 [ 55.843522][ T567] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 55.850652][ T567] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 55.891314][ T389] !!!! css_release kill_css(ffff888113d92400) [ 55.897769][ T24] !!!! css_release kill_css(ffff888113d90c00) [ 55.904408][ T24] !!!! css_release kill_css(ffff888113d91000) [ 55.910777][ T568] FAULT_INJECTION: forcing a failure. [ 55.910777][ T568] name failslab, interval 1, probability 0, space 0, times 0 [ 55.923796][ T568] CPU: 1 PID: 568 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 55.935506][ T568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.945561][ T568] Call Trace: [ 55.948867][ T568] dump_stack_lvl+0x1e2/0x24b [ 55.953618][ T568] ? panic+0x7d7/0x7d7 [ 55.957679][ T568] ? bfq_pos_tree_add_move+0x43e/0x43e [ 55.963208][ T568] ? find_next_bit+0xd6/0x120 [ 55.967859][ T568] ? cpumask_next+0x11/0x30 [ 55.972337][ T568] dump_stack+0x15/0x17 [ 55.976561][ T568] should_fail+0x3c0/0x510 [ 55.981184][ T568] ? percpu_ref_init+0xd0/0x330 [ 55.986168][ T568] __should_failslab+0x9f/0xe0 [ 55.991034][ T568] should_failslab+0x9/0x20 [ 55.995633][ T568] kmem_cache_alloc_trace+0x3a/0x330 [ 56.000915][ T568] percpu_ref_init+0xd0/0x330 [ 56.005594][ T568] ? cgroup_setup_root+0xea0/0xea0 [ 56.010688][ T568] cgroup_apply_control_enable+0x3a2/0x12f0 [ 56.016565][ T568] cgroup_apply_control+0x93/0x710 [ 56.021760][ T568] ? css_next_child+0x160/0x160 [ 56.026676][ T568] ? set_next_entity+0xc5/0x390 [ 56.031782][ T568] ? io_schedule+0x120/0x120 [ 56.036485][ T568] ? kernfs_fop_write_iter+0x15e/0x410 [ 56.041948][ T568] ? __kasan_check_write+0x14/0x20 [ 56.047132][ T568] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 56.052687][ T568] cgroup_subtree_control_write+0xd19/0x1310 [ 56.058650][ T568] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.064609][ T568] ? __kasan_check_write+0x14/0x20 [ 56.069787][ T568] ? _copy_from_iter+0x3fb/0xd60 [ 56.074795][ T568] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.080762][ T568] cgroup_file_write+0x28e/0x590 [ 56.085712][ T568] ? cgroup_seqfile_stop+0xc0/0xc0 [ 56.090828][ T568] ? mutex_lock+0xa6/0x110 [ 56.095336][ T568] ? mutex_trylock+0xb0/0xb0 [ 56.099904][ T568] ? __kasan_check_write+0x14/0x20 [ 56.105017][ T568] kernfs_fop_write_iter+0x2d0/0x410 [ 56.110457][ T568] ? cgroup_seqfile_stop+0xc0/0xc0 [ 56.115564][ T568] vfs_write+0xc1c/0xf40 [ 56.120246][ T568] ? kernel_write+0x3c0/0x3c0 [ 56.124995][ T568] ? mutex_trylock+0xb0/0xb0 [ 56.129700][ T568] ? __fdget_pos+0x26d/0x310 [ 56.134275][ T568] ? ksys_write+0x77/0x2c0 [ 56.138672][ T568] ksys_write+0x198/0x2c0 [ 56.142979][ T568] ? __ia32_sys_read+0x90/0x90 [ 56.147771][ T568] ? debug_smp_processor_id+0x17/0x20 [ 56.153141][ T568] __x64_sys_write+0x7b/0x90 [ 56.157714][ T568] do_syscall_64+0x34/0x70 [ 56.162196][ T568] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.168162][ T568] RIP: 0033:0x7ff5e9f170e9 [ 56.172619][ T568] 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 [ 56.192382][ T568] RSP: 002b:00007ff5e9e6c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 56.200784][ T568] RAX: ffffffffffffffda RBX: 00007ff5ea02a030 RCX: 00007ff5e9f170e9 [ 56.208802][ T568] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 56.216764][ T568] RBP: 00007ff5e9e6c1d0 R08: 0000000000000000 R09: 0000000000000000 [ 56.224717][ T568] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 56.232674][ T568] R13: 00007ffc4a28769f R14: 00007ff5e9e6c300 R15: 0000000000022000 [ 56.240945][ T568] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.291168][ T391] !!!! css_release kill_css(ffff888113f62800) [ 56.297366][ T391] !!!! css_release kill_css(ffff888113f62c00) [ 56.303592][ T572] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.303710][ T565] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.310653][ T575] FAULT_INJECTION: forcing a failure. [ 56.310653][ T575] name failslab, interval 1, probability 0, space 0, times 0 [ 56.329528][ T575] CPU: 0 PID: 575 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 56.341405][ T575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.351441][ T575] Call Trace: [ 56.354714][ T575] dump_stack_lvl+0x1e2/0x24b [ 56.359381][ T575] ? bfq_pos_tree_add_move+0x43e/0x43e [ 56.364837][ T575] ? selinux_kernfs_init_security+0x1a8/0x760 [ 56.370993][ T575] dump_stack+0x15/0x17 [ 56.375146][ T575] should_fail+0x3c0/0x510 [ 56.379580][ T575] ? __kernfs_new_node+0x99/0x6e0 [ 56.384589][ T575] __should_failslab+0x9f/0xe0 [ 56.389426][ T575] should_failslab+0x9/0x20 [ 56.393922][ T575] __kmalloc_track_caller+0x5f/0x350 [ 56.399196][ T575] kstrdup_const+0x55/0x90 [ 56.403689][ T575] __kernfs_new_node+0x99/0x6e0 [ 56.408524][ T575] ? is_module_text_address+0xe1/0x140 [ 56.414052][ T575] ? kernfs_new_node+0x170/0x170 [ 56.418965][ T575] ? ptr_to_hashval+0x60/0x60 [ 56.423632][ T575] ? arch_stack_walk+0xf8/0x140 [ 56.428458][ T575] ? snprintf+0xd6/0x120 [ 56.432745][ T575] kernfs_new_node+0x97/0x170 [ 56.437408][ T575] __kernfs_create_file+0x4a/0x270 [ 56.442506][ T575] cgroup_addrm_files+0xab8/0xfe0 [ 56.447601][ T575] ? ____kasan_kmalloc+0xdc/0x110 [ 56.452773][ T575] ? __kasan_kmalloc+0x9/0x10 [ 56.457424][ T575] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 56.463063][ T575] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 56.469366][ T575] ? delete_node+0x759/0x7b0 [ 56.474069][ T575] ? __kasan_check_read+0x11/0x20 [ 56.479077][ T575] ? delete_node+0x759/0x7b0 [ 56.483711][ T575] ? __kasan_check_write+0x14/0x20 [ 56.488810][ T575] ? idr_replace+0x1c4/0x230 [ 56.493391][ T575] ? idr_get_next+0x4b0/0x4b0 [ 56.498152][ T575] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 56.503311][ T575] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 56.508524][ T575] css_populate_dir+0x137/0x370 [ 56.513479][ T575] cgroup_apply_control_enable+0x8b9/0x12f0 [ 56.519356][ T575] cgroup_apply_control+0x93/0x710 [ 56.524453][ T575] ? css_next_child+0x160/0x160 [ 56.529285][ T575] ? set_next_entity+0xc5/0x390 [ 56.534113][ T575] ? io_schedule+0x120/0x120 [ 56.538682][ T575] ? kernfs_fop_write_iter+0x15e/0x410 [ 56.544116][ T575] ? __kasan_check_write+0x14/0x20 [ 56.549206][ T575] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 56.554468][ T575] cgroup_subtree_control_write+0xd19/0x1310 [ 56.560601][ T575] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.566648][ T575] ? __kasan_check_write+0x14/0x20 [ 56.571939][ T575] ? _copy_from_iter+0x3fb/0xd60 [ 56.576853][ T575] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.582804][ T575] cgroup_file_write+0x28e/0x590 [ 56.587720][ T575] ? cgroup_seqfile_stop+0xc0/0xc0 [ 56.592809][ T575] ? mutex_lock+0xa6/0x110 [ 56.597197][ T575] ? mutex_trylock+0xb0/0xb0 [ 56.601762][ T575] ? __kasan_check_write+0x14/0x20 [ 56.606850][ T575] kernfs_fop_write_iter+0x2d0/0x410 [ 56.612115][ T575] ? cgroup_seqfile_stop+0xc0/0xc0 [ 56.617203][ T575] vfs_write+0xc1c/0xf40 [ 56.621445][ T575] ? kernel_write+0x3c0/0x3c0 [ 56.626110][ T575] ? mutex_trylock+0xb0/0xb0 [ 56.630683][ T575] ? __fdget_pos+0x26d/0x310 [ 56.635259][ T575] ? ksys_write+0x77/0x2c0 [ 56.639763][ T575] ksys_write+0x198/0x2c0 [ 56.644071][ T575] ? __ia32_sys_read+0x90/0x90 [ 56.648821][ T575] ? debug_smp_processor_id+0x17/0x20 [ 56.654173][ T575] __x64_sys_write+0x7b/0x90 [ 56.658742][ T575] do_syscall_64+0x34/0x70 [ 56.663131][ T575] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.668999][ T575] RIP: 0033:0x7fe78c1da0e9 [ 56.673396][ T575] 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 [ 56.695080][ T575] RSP: 002b:00007fe78c12f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 56.703485][ T575] RAX: ffffffffffffffda RBX: 00007fe78c2ed030 RCX: 00007fe78c1da0e9 [ 56.711431][ T575] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 56.720772][ T575] RBP: 00007fe78c12f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 56.728813][ T575] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 56.736852][ T575] R13: 00007ffe83e0826f R14: 00007fe78c12f300 R15: 0000000000022000 [ 56.745244][ T575] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 56.752457][ T575] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.790962][ T24] !!!! css_release kill_css(ffff888113f60c00) [ 56.797394][ T24] !!!! css_release kill_css(ffff888113f62400) [ 56.804232][ T24] !!!! css_release kill_css(ffff888113f61c00) [ 56.810518][ T581] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.810534][ T584] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.817384][ T582] FAULT_INJECTION: forcing a failure. [ 56.817384][ T582] name failslab, interval 1, probability 0, space 0, times 0 [ 56.836735][ T582] CPU: 0 PID: 582 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 56.848381][ T582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.858419][ T582] Call Trace: [ 56.861694][ T582] dump_stack_lvl+0x1e2/0x24b [ 56.866350][ T582] ? panic+0x7d7/0x7d7 [ 56.870396][ T582] ? bfq_pos_tree_add_move+0x43e/0x43e [ 56.875834][ T582] ? find_next_bit+0xd6/0x120 [ 56.880489][ T582] ? cpumask_next+0x11/0x30 [ 56.885257][ T582] dump_stack+0x15/0x17 [ 56.889509][ T582] should_fail+0x3c0/0x510 [ 56.894172][ T582] ? percpu_ref_init+0xd0/0x330 [ 56.899005][ T582] __should_failslab+0x9f/0xe0 [ 56.903762][ T582] should_failslab+0x9/0x20 [ 56.908254][ T582] kmem_cache_alloc_trace+0x3a/0x330 [ 56.913531][ T582] percpu_ref_init+0xd0/0x330 [ 56.918185][ T582] ? cgroup_setup_root+0xea0/0xea0 [ 56.923362][ T582] cgroup_apply_control_enable+0x3a2/0x12f0 [ 56.929236][ T582] cgroup_apply_control+0x93/0x710 [ 56.934331][ T582] ? css_next_child+0x160/0x160 [ 56.939158][ T582] ? set_next_entity+0xc5/0x390 [ 56.944002][ T582] ? io_schedule+0x120/0x120 [ 56.948655][ T582] ? kernfs_fop_write_iter+0x15e/0x410 [ 56.954112][ T582] ? __kasan_check_write+0x14/0x20 [ 56.959305][ T582] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 56.964667][ T582] cgroup_subtree_control_write+0xd19/0x1310 [ 56.970648][ T582] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.976608][ T582] ? __kasan_check_write+0x14/0x20 [ 56.981710][ T582] ? _copy_from_iter+0x3fb/0xd60 [ 56.986713][ T582] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 56.992699][ T582] cgroup_file_write+0x28e/0x590 [ 56.997713][ T582] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.002873][ T582] ? mutex_lock+0xa6/0x110 [ 57.007307][ T582] ? mutex_trylock+0xb0/0xb0 [ 57.011908][ T582] ? __kasan_check_write+0x14/0x20 [ 57.017276][ T582] kernfs_fop_write_iter+0x2d0/0x410 [ 57.022656][ T582] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.027842][ T582] vfs_write+0xc1c/0xf40 [ 57.032075][ T582] ? kernel_write+0x3c0/0x3c0 [ 57.036822][ T582] ? mutex_trylock+0xb0/0xb0 [ 57.041772][ T582] ? __fdget_pos+0x26d/0x310 [ 57.046362][ T582] ? ksys_write+0x77/0x2c0 [ 57.050770][ T582] ksys_write+0x198/0x2c0 [ 57.055087][ T582] ? __ia32_sys_read+0x90/0x90 [ 57.059828][ T582] ? debug_smp_processor_id+0x17/0x20 [ 57.065182][ T582] __x64_sys_write+0x7b/0x90 [ 57.069760][ T582] do_syscall_64+0x34/0x70 [ 57.074159][ T582] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.080119][ T582] RIP: 0033:0x7f21333640e9 [ 57.084658][ T582] 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 [ 57.104459][ T582] RSP: 002b:00007f21332b9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 57.113502][ T582] RAX: ffffffffffffffda RBX: 00007f2133477030 RCX: 00007f21333640e9 [ 57.121561][ T582] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 57.130552][ T582] RBP: 00007f21332b91d0 R08: 0000000000000000 R09: 0000000000000000 2022/06/06 19:18:34 executed programs: 52 [ 57.138808][ T582] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 57.146865][ T582] R13: 00007ffd7c682e4f R14: 00007f21332b9300 R15: 0000000000022000 [ 57.155222][ T582] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 57.190988][ T391] !!!! css_release kill_css(ffff888113f60400) [ 57.197344][ T391] !!!! css_release kill_css(ffff888113f63000) [ 57.203777][ T578] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 57.203987][ T570] FAULT_INJECTION: forcing a failure. [ 57.203987][ T570] name failslab, interval 1, probability 0, space 0, times 0 [ 57.222891][ T570] CPU: 1 PID: 570 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 57.234458][ T570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.244714][ T570] Call Trace: [ 57.247998][ T570] dump_stack_lvl+0x1e2/0x24b [ 57.252695][ T570] ? panic+0x7d7/0x7d7 [ 57.256832][ T570] ? bfq_pos_tree_add_move+0x43e/0x43e [ 57.262275][ T570] ? find_next_bit+0xd6/0x120 [ 57.266936][ T570] ? cpumask_next+0x11/0x30 [ 57.271416][ T570] dump_stack+0x15/0x17 [ 57.275592][ T570] should_fail+0x3c0/0x510 [ 57.279989][ T570] ? percpu_ref_init+0xd0/0x330 [ 57.284816][ T570] __should_failslab+0x9f/0xe0 [ 57.289595][ T570] should_failslab+0x9/0x20 [ 57.294527][ T570] kmem_cache_alloc_trace+0x3a/0x330 [ 57.299888][ T570] percpu_ref_init+0xd0/0x330 [ 57.304547][ T570] ? cgroup_setup_root+0xea0/0xea0 [ 57.309825][ T570] cgroup_apply_control_enable+0x3a2/0x12f0 [ 57.315730][ T570] cgroup_apply_control+0x93/0x710 [ 57.320918][ T570] ? css_next_child+0x160/0x160 [ 57.325750][ T570] ? set_next_entity+0xc5/0x390 [ 57.330592][ T570] ? io_schedule+0x120/0x120 [ 57.335169][ T570] ? kernfs_fop_write_iter+0x15e/0x410 [ 57.340616][ T570] ? __kasan_check_write+0x14/0x20 [ 57.345801][ T570] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 57.351087][ T570] cgroup_subtree_control_write+0xd19/0x1310 [ 57.357047][ T570] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.363010][ T570] ? __kasan_check_write+0x14/0x20 [ 57.368099][ T570] ? _copy_from_iter+0x3fb/0xd60 [ 57.373017][ T570] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.378989][ T570] cgroup_file_write+0x28e/0x590 [ 57.383916][ T570] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.389195][ T570] ? mutex_lock+0xa6/0x110 [ 57.393630][ T570] ? mutex_trylock+0xb0/0xb0 [ 57.398208][ T570] ? __kasan_check_write+0x14/0x20 [ 57.403482][ T570] kernfs_fop_write_iter+0x2d0/0x410 [ 57.408764][ T570] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.413863][ T570] vfs_write+0xc1c/0xf40 [ 57.418107][ T570] ? kernel_write+0x3c0/0x3c0 [ 57.422835][ T570] ? mutex_trylock+0xb0/0xb0 [ 57.427441][ T570] ? __fdget_pos+0x26d/0x310 [ 57.432012][ T570] ? ksys_write+0x77/0x2c0 [ 57.436525][ T570] ksys_write+0x198/0x2c0 [ 57.441027][ T570] ? __ia32_sys_read+0x90/0x90 [ 57.445774][ T570] ? debug_smp_processor_id+0x17/0x20 [ 57.451129][ T570] __x64_sys_write+0x7b/0x90 [ 57.455718][ T570] do_syscall_64+0x34/0x70 [ 57.460224][ T570] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.466103][ T570] RIP: 0033:0x7f6c01dab0e9 [ 57.470494][ T570] 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 [ 57.490247][ T570] RSP: 002b:00007f6c01d00168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 57.498665][ T570] RAX: ffffffffffffffda RBX: 00007f6c01ebe030 RCX: 00007f6c01dab0e9 [ 57.506804][ T570] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 57.514854][ T570] RBP: 00007f6c01d001d0 R08: 0000000000000000 R09: 0000000000000000 [ 57.522903][ T570] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 57.530868][ T570] R13: 00007ffe3bc55f7f R14: 00007f6c01d00300 R15: 0000000000022000 [ 57.540117][ T570] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 57.571228][ T24] !!!! css_release kill_css(ffff8881140b1000) [ 57.577561][ T24] !!!! css_release kill_css(ffff8881140b0c00) [ 57.583885][ T593] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 57.585524][ T585] FAULT_INJECTION: forcing a failure. [ 57.585524][ T585] name failslab, interval 1, probability 0, space 0, times 0 [ 57.591394][ T590] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 57.604029][ T585] CPU: 0 PID: 585 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 57.621633][ T585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.631848][ T585] Call Trace: [ 57.635128][ T585] dump_stack_lvl+0x1e2/0x24b [ 57.639975][ T585] ? bfq_pos_tree_add_move+0x43e/0x43e [ 57.645697][ T585] ? selinux_kernfs_init_security+0x1a8/0x760 [ 57.651755][ T585] dump_stack+0x15/0x17 [ 57.655899][ T585] should_fail+0x3c0/0x510 [ 57.660296][ T585] ? __kernfs_new_node+0x99/0x6e0 [ 57.665400][ T585] __should_failslab+0x9f/0xe0 [ 57.670153][ T585] should_failslab+0x9/0x20 [ 57.674742][ T585] __kmalloc_track_caller+0x5f/0x350 [ 57.680011][ T585] kstrdup_const+0x55/0x90 [ 57.684493][ T585] __kernfs_new_node+0x99/0x6e0 [ 57.689586][ T585] ? is_module_text_address+0xe1/0x140 [ 57.695128][ T585] ? kernfs_new_node+0x170/0x170 [ 57.700147][ T585] ? ptr_to_hashval+0x60/0x60 [ 57.704979][ T585] ? arch_stack_walk+0xf8/0x140 [ 57.709900][ T585] ? snprintf+0xd6/0x120 [ 57.714126][ T585] kernfs_new_node+0x97/0x170 [ 57.718790][ T585] __kernfs_create_file+0x4a/0x270 [ 57.723978][ T585] cgroup_addrm_files+0xab8/0xfe0 [ 57.729010][ T585] ? ____kasan_kmalloc+0xdc/0x110 [ 57.734130][ T585] ? __kasan_kmalloc+0x9/0x10 [ 57.738792][ T585] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 57.744322][ T585] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 57.750601][ T585] ? delete_node+0x759/0x7b0 [ 57.755359][ T585] ? __kasan_check_read+0x11/0x20 [ 57.760382][ T585] ? delete_node+0x759/0x7b0 [ 57.764975][ T585] ? __kasan_check_write+0x14/0x20 [ 57.770086][ T585] ? idr_replace+0x1c4/0x230 [ 57.774750][ T585] ? idr_get_next+0x4b0/0x4b0 [ 57.779415][ T585] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 57.784418][ T585] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 57.789595][ T585] css_populate_dir+0x137/0x370 [ 57.794483][ T585] cgroup_apply_control_enable+0x8b9/0x12f0 [ 57.800577][ T585] cgroup_apply_control+0x93/0x710 [ 57.805947][ T585] ? css_next_child+0x160/0x160 [ 57.810875][ T585] ? set_next_entity+0xc5/0x390 [ 57.815729][ T585] ? io_schedule+0x120/0x120 [ 57.820318][ T585] ? kernfs_fop_write_iter+0x15e/0x410 [ 57.825775][ T585] ? __kasan_check_write+0x14/0x20 [ 57.830884][ T585] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 57.836164][ T585] cgroup_subtree_control_write+0xd19/0x1310 [ 57.842136][ T585] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.848114][ T585] ? __kasan_check_write+0x14/0x20 [ 57.853388][ T585] ? _copy_from_iter+0x3fb/0xd60 [ 57.858408][ T585] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.864372][ T585] cgroup_file_write+0x28e/0x590 [ 57.869311][ T585] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.874424][ T585] ? mutex_lock+0xa6/0x110 [ 57.878819][ T585] ? mutex_trylock+0xb0/0xb0 [ 57.883399][ T585] ? __kasan_check_write+0x14/0x20 [ 57.888592][ T585] kernfs_fop_write_iter+0x2d0/0x410 [ 57.893879][ T585] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.898977][ T585] vfs_write+0xc1c/0xf40 [ 57.903337][ T585] ? kernel_write+0x3c0/0x3c0 [ 57.908011][ T585] ? mutex_trylock+0xb0/0xb0 [ 57.912697][ T585] ? __fdget_pos+0x26d/0x310 [ 57.917784][ T585] ? ksys_write+0x77/0x2c0 [ 57.922193][ T585] ksys_write+0x198/0x2c0 [ 57.926623][ T585] ? __ia32_sys_read+0x90/0x90 [ 57.931370][ T585] ? debug_smp_processor_id+0x17/0x20 [ 57.936719][ T585] __x64_sys_write+0x7b/0x90 [ 57.941388][ T585] do_syscall_64+0x34/0x70 [ 57.945779][ T585] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.951645][ T585] RIP: 0033:0x7ff5e9f170e9 [ 57.956125][ T585] 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 [ 57.976071][ T585] RSP: 002b:00007ff5e9e6c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 57.984490][ T585] RAX: ffffffffffffffda RBX: 00007ff5ea02a030 RCX: 00007ff5e9f170e9 [ 57.992552][ T585] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 58.000600][ T585] RBP: 00007ff5e9e6c1d0 R08: 0000000000000000 R09: 0000000000000000 [ 58.009154][ T585] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 58.017219][ T585] R13: 00007ffc4a28769f R14: 00007ff5e9e6c300 R15: 0000000000022000 [ 58.025646][ T585] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 58.032851][ T585] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 58.041908][ T418] ------------[ cut here ]------------ [ 58.048006][ T418] WARNING: CPU: 1 PID: 418 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 58.057120][ T418] Modules linked in: [ 58.061252][ C1] ------------[ cut here ]------------ [ 58.061264][ C1] percpu ref (css_release) <= 0 (0) after switching to atomic [ 58.061325][ C1] WARNING: CPU: 1 PID: 418 at lib/percpu-refcount.c:196 percpu_ref_switch_to_atomic_rcu+0x505/0x5b0 [ 58.061327][ C1] Modules linked in: [ 58.061339][ C1] CPU: 1 PID: 418 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 58.061342][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.061350][ C1] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x505/0x5b0 [ 58.061356][ C1] Code: 00 00 00 fc ff df 41 80 3c 06 00 74 08 4c 89 ef e8 b0 36 5a ff 49 8b 55 00 48 c7 c7 a0 b8 43 85 48 89 de 31 c0 e8 4b ad f2 fe <0f> 0b e9 4b fd ff ff e8 5f 70 20 ff 0f 0b e9 a2 fe ff ff 48 c7 c1 [ 58.061360][ C1] RSP: 0018:ffffc90000160c08 EFLAGS: 00010246 [ 58.061366][ C1] RAX: 02badfb1eb817500 RBX: ffffffff81647ad0 RCX: ffff88810c860000 [ 58.061370][ C1] RDX: 0000000000000102 RSI: 0000000000000102 RDI: 0000000000000000 [ 58.061374][ C1] RBP: ffffc90000160c50 R08: ffffffff8153b2f8 R09: ffffed103ee64e83 [ 58.061378][ C1] R10: ffffed103ee64e83 R11: 1ffff1103ee64e82 R12: 7fffffffffffffff [ 58.061383][ C1] R13: ffff888113728800 R14: 1ffff110226e5100 R15: ffff888113728820 [ 58.061388][ C1] FS: 00005555573da400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 58.061392][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.061395][ C1] CR2: 00007ffc4a285ff8 CR3: 000000010c772000 CR4: 00000000003506a0 [ 58.061402][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.061408][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.061410][ C1] Call Trace: [ 58.061414][ C1] [ 58.061424][ C1] ? percpu_ref_noop_confirm_switch+0x10/0x10 [ 58.061435][ C1] rcu_do_batch+0x4f8/0xbc0 [ 58.061446][ C1] ? local_bh_enable+0x20/0x20 [ 58.061455][ C1] ? note_gp_changes+0x158/0x260 [ 58.061465][ C1] ? __next_timer_interrupt+0x207/0x260 [ 58.061478][ C1] ? memset+0x35/0x40 [ 58.061487][ C1] rcu_core+0x59b/0xe30 [ 58.061498][ C1] ? calc_index+0x240/0x240 [ 58.061506][ C1] ? rcu_cpu_kthread_park+0x90/0x90 [ 58.061516][ C1] ? sched_clock_cpu+0x1b/0x3b0 [ 58.061524][ C1] rcu_core_si+0x9/0x10 [ 58.061533][ C1] __do_softirq+0x27e/0x596 [ 58.061539][ C1] asm_call_irq_on_stack+0xf/0x20 [ 58.061541][ C1] [ 58.061547][ C1] do_softirq_own_stack+0x60/0x80 [ 58.061553][ C1] __irq_exit_rcu+0x128/0x150 [ 58.061558][ C1] irq_exit_rcu+0x9/0x10 [ 58.061565][ C1] sysvec_apic_timer_interrupt+0xbf/0xe0 [ 58.061570][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 58.061577][ C1] RIP: 0010:console_unlock+0xb5c/0xf20 [ 58.061583][ C1] Code: 85 db 4c 8d b4 24 60 01 00 00 0f 85 82 03 00 00 e8 49 6e 00 00 48 8b 44 24 30 48 89 84 24 90 00 00 00 ff b4 24 90 00 00 00 9d <48> 8b 44 24 38 42 80 3c 38 00 74 08 4c 89 f7 e8 10 d1 52 00 48 c7 [ 58.061595][ C1] RSP: 0018:ffffc90000ba7520 EFLAGS: 00000246 [ 58.061601][ C1] RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff88810c860000 [ 58.061606][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 58.061610][ C1] RBP: ffffc90000ba77b0 R08: ffffffff8153ae3b R09: 0000000000000003 [ 58.061614][ C1] R10: fffff52000174e95 R11: 1ffff92000174e94 R12: ffffc90000ba7720 [ 58.061619][ C1] R13: 1ffffffff0c3ad89 R14: ffffc90000ba7680 R15: dffffc0000000000 [ 58.061625][ C1] ? console_unlock+0xb1b/0xf20 [ 58.061632][ C1] ? __kasan_check_write+0x14/0x20 [ 58.061637][ C1] ? _raw_spin_lock_irqsave+0xf8/0x210 [ 58.061643][ C1] ? vprintk_emit+0x640/0x640 [ 58.061648][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 58.061653][ C1] ? log_output+0x207/0x4d0 [ 58.061659][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 58.061665][ C1] ? resume_console+0x50/0x50 [ 58.061670][ C1] ? _raw_spin_lock+0xa3/0x1b0 [ 58.061677][ C1] ? vsnprintf+0x1bfd/0x1cd0 [ 58.061683][ C1] vprintk_emit+0x44b/0x640 [ 58.061688][ C1] ? resume_console+0x50/0x50 [ 58.061694][ C1] ? log_output+0x4d0/0x4d0 [ 58.061699][ C1] ? wake_up_klogd+0xc1/0xf0 [ 58.061705][ C1] vprintk_default+0x26/0x30 [ 58.061710][ C1] vprintk_func+0x19d/0x1e0 [ 58.061715][ C1] printk+0xcf/0x10f [ 58.061721][ C1] ? wake_up_klogd+0xb8/0xf0 [ 58.061726][ C1] ? panic+0x7d7/0x7d7 [ 58.061731][ C1] ? vprintk_default+0x26/0x30 [ 58.061737][ C1] print_modules+0xf8/0x1f0 [ 58.061742][ C1] ? is_module_text_address+0x140/0x140 [ 58.061747][ C1] ? printk+0xcf/0x10f [ 58.061752][ C1] ? report_bug+0x3c0/0x580 [ 58.061757][ C1] ? panic+0x7d7/0x7d7 [ 58.061762][ C1] __warn+0xf5/0x260 [ 58.061768][ C1] ? mntput_no_expire+0x48a/0x6c0 [ 58.061773][ C1] report_bug+0x410/0x580 [ 58.061779][ C1] ? mntput_no_expire+0x48a/0x6c0 [ 58.061784][ C1] handle_bug+0x41/0x70 [ 58.061789][ C1] exc_invalid_op+0x1b/0x50 [ 58.061794][ C1] asm_exc_invalid_op+0x12/0x20 [ 58.061800][ C1] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 58.061806][ C1] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 58.061809][ C1] RSP: 0018:ffffc90000ba7ca0 EFLAGS: 00010293 [ 58.061815][ C1] RAX: ffffffff81b68b0a RBX: 00000000ffffffff RCX: ffff88810c860000 [ 58.061819][ C1] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 58.061823][ C1] RBP: ffffc90000ba7d70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 58.061827][ C1] R10: fffff52000174f85 R11: 1ffff92000174f84 R12: dffffc0000000000 [ 58.061832][ C1] R13: ffff88811156ee00 R14: ffffc90000ba7d00 R15: 1ffff92000174f9c [ 58.061837][ C1] ? mntput_no_expire+0x178/0x6c0 [ 58.061843][ C1] ? mntput_no_expire+0x48a/0x6c0 [ 58.061849][ C1] ? lockref_get_or_lock+0x340/0x340 [ 58.061854][ C1] ? umount_tree+0xf50/0xf50 [ 58.061860][ C1] ? vfs_submount+0xb0/0xb0 [ 58.061866][ C1] ? dput+0x2b6/0x320 [ 58.061871][ C1] path_umount+0x1fe/0xfb0 [ 58.061877][ C1] ? namespace_unlock+0x4f0/0x4f0 [ 58.061884][ C1] ? user_path_at_empty+0x40/0x50 [ 58.061889][ C1] __x64_sys_umount+0x122/0x170 [ 58.061895][ C1] ? path_umount+0xfb0/0xfb0 [ 58.061899][ C1] ? debug_smp_processor_id+0x17/0x20 [ 58.061905][ C1] do_syscall_64+0x34/0x70 [ 58.061910][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.061915][ C1] RIP: 0033:0x7ff5e9f18557 [ 58.061921][ C1] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 58.061925][ C1] RSP: 002b:00007ffc4a2867f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 58.061931][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff5e9f18557 [ 58.061935][ C1] RDX: 00007ffc4a2868ca RSI: 000000000000000a RDI: 00007ffc4a2868c0 [ 58.061939][ C1] RBP: 00007ffc4a2868c0 R08: 00000000ffffffff R09: 00007ffc4a286690 [ 58.061943][ C1] R10: 00005555573dbba3 R11: 0000000000000246 R12: 00007ff5e9f701f8 [ 58.061946][ C1] R13: 00007ffc4a287980 R14: 00005555573dbb00 R15: 00007ffc4a2879c0 [ 58.061951][ C1] ---[ end trace 9cc038e294c8c153 ]--- [ 58.771401][ T418] CPU: 1 PID: 418 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 58.783023][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.793111][ T418] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 58.798733][ T418] Code: 48 c7 c2 c0 03 04 86 e8 a4 f4 8e ff e9 8b fc ff ff e8 da 2d b6 ff e9 81 fc ff ff e8 d0 2d b6 ff e9 77 fc ff ff e8 c6 2d b6 ff <0f> 0b e9 f4 fc ff ff e8 ba 2d b6 ff e8 a5 b9 a2 ff e9 ea fc ff ff [ 58.818447][ T418] RSP: 0018:ffffc90000ba7ca0 EFLAGS: 00010293 [ 58.824544][ T418] RAX: ffffffff81b68b0a RBX: 00000000ffffffff RCX: ffff88810c860000 [ 58.832555][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 58.840520][ T418] RBP: ffffc90000ba7d70 R08: ffffffff81b687f8 R09: 0000000000000003 [ 58.848522][ T418] R10: fffff52000174f85 R11: 1ffff92000174f84 R12: dffffc0000000000 [ 58.856513][ T418] R13: ffff88811156ee00 R14: ffffc90000ba7d00 R15: 1ffff92000174f9c [ 58.864501][ T418] FS: 00005555573da400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 58.873433][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.880013][ T418] CR2: 00007ffc4a285ff8 CR3: 000000010c772000 CR4: 00000000003506a0 [ 58.888086][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.896081][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.904045][ T418] Call Trace: [ 58.907325][ T418] ? lockref_get_or_lock+0x340/0x340 [ 58.913235][ T418] ? umount_tree+0xf50/0xf50 [ 58.917806][ T418] ? vfs_submount+0xb0/0xb0 [ 58.922354][ T418] ? dput+0x2b6/0x320 [ 58.926430][ T418] path_umount+0x1fe/0xfb0 [ 58.930946][ T418] ? namespace_unlock+0x4f0/0x4f0 [ 58.935984][ T418] ? user_path_at_empty+0x40/0x50 [ 58.941010][ T418] __x64_sys_umount+0x122/0x170 [ 58.945852][ T418] ? path_umount+0xfb0/0xfb0 [ 58.950418][ T418] ? debug_smp_processor_id+0x17/0x20 [ 58.955798][ T418] do_syscall_64+0x34/0x70 [ 58.960195][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.966079][ T418] RIP: 0033:0x7ff5e9f18557 [ 58.970560][ T418] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 58.990419][ T418] RSP: 002b:00007ffc4a2867f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 58.999028][ T418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff5e9f18557 [ 59.007000][ T418] RDX: 00007ffc4a2868ca RSI: 000000000000000a RDI: 00007ffc4a2868c0 [ 59.014998][ T418] RBP: 00007ffc4a2868c0 R08: 00000000ffffffff R09: 00007ffc4a286690 [ 59.022987][ T418] R10: 00005555573dbba3 R11: 0000000000000246 R12: 00007ff5e9f701f8 [ 59.030954][ T418] R13: 00007ffc4a287980 R14: 00005555573dbb00 R15: 00007ffc4a2879c0 [ 59.038907][ T418] ---[ end trace 9cc038e294c8c154 ]--- [ 59.044409][ T24] !!!! css_release kill_css(ffff888114472c00) [ 59.046259][ T418] ------------[ cut here ]------------ [ 59.051629][ T390] !!!! css_release kill_css(ffff888114473400) [ 59.056199][ T418] WARNING: CPU: 0 PID: 418 at fs/namespace.c:1109 cleanup_mnt+0x4c5/0x510 [ 59.062998][ T579] FAULT_INJECTION: forcing a failure. [ 59.062998][ T579] name failslab, interval 1, probability 0, space 0, times 0 [ 59.071182][ T418] Modules linked in: [ 59.083805][ T579] CPU: 1 PID: 579 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 59.087760][ T418] CPU: 0 PID: 418 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 59.099372][ T579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.099377][ T579] Call Trace: [ 59.099394][ T579] dump_stack_lvl+0x1e2/0x24b [ 59.099403][ T579] ? panic+0x7d7/0x7d7 [ 59.099412][ T579] ? bfq_pos_tree_add_move+0x43e/0x43e [ 59.099421][ T579] ? find_next_bit+0xd6/0x120 [ 59.099435][ T579] ? cpumask_next+0x11/0x30 [ 59.099449][ T579] dump_stack+0x15/0x17 [ 59.111776][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.121342][ T579] should_fail+0x3c0/0x510 [ 59.121352][ T579] ? percpu_ref_init+0xd0/0x330 [ 59.121363][ T579] __should_failslab+0x9f/0xe0 [ 59.121372][ T579] should_failslab+0x9/0x20 [ 59.121382][ T579] kmem_cache_alloc_trace+0x3a/0x330 [ 59.121390][ T579] percpu_ref_init+0xd0/0x330 [ 59.121407][ T579] ? cgroup_setup_root+0xea0/0xea0 [ 59.125382][ T418] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 59.129769][ T579] cgroup_apply_control_enable+0x3a2/0x12f0 [ 59.129781][ T579] cgroup_apply_control+0x93/0x710 [ 59.129796][ T579] ? css_next_child+0x160/0x160 [ 59.134143][ T418] Code: 0f a1 ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fe 13 b5 ff 48 8b 7d d0 e8 c5 07 05 00 e9 21 fd ff ff e8 eb 13 b5 ff <0f> 0b e9 e5 fc ff ff 48 c7 c1 58 d8 5e 86 80 e1 07 80 c1 03 38 c1 [ 59.139264][ T579] ? dequeue_task_fair+0x7ad/0xb50 [ 59.139274][ T579] ? io_schedule+0x120/0x120 [ 59.139290][ T579] ? kernfs_fop_write_iter+0x15e/0x410 [ 59.144237][ T418] RSP: 0018:ffffc90000ba7e30 EFLAGS: 00010293 [ 59.148414][ T579] ? __kasan_check_write+0x14/0x20 [ 59.148430][ T579] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 59.148447][ T579] cgroup_subtree_control_write+0xd19/0x1310 [ 59.152844][ T418] [ 59.162692][ T579] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.162704][ T579] ? __kasan_check_write+0x14/0x20 [ 59.162713][ T579] ? _copy_from_iter+0x3fb/0xd60 [ 59.162730][ T579] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.167431][ T418] RAX: ffffffff81b7a4e5 RBX: ffffe8ffffd42014 RCX: ffff88810c860000 [ 59.171944][ T579] cgroup_file_write+0x28e/0x590 [ 59.171954][ T579] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.171964][ T579] ? mutex_lock+0xa6/0x110 [ 59.171973][ T579] ? mutex_trylock+0xb0/0xb0 [ 59.171983][ T579] ? __kasan_check_write+0x14/0x20 [ 59.171999][ T579] kernfs_fop_write_iter+0x2d0/0x410 [ 59.177322][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 59.181489][ T579] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.181500][ T579] vfs_write+0xc1c/0xf40 [ 59.181510][ T579] ? kernel_write+0x3c0/0x3c0 [ 59.181521][ T579] ? mutex_trylock+0xb0/0xb0 [ 59.181531][ T579] ? __fdget_pos+0x26d/0x310 [ 59.181539][ T579] ? ksys_write+0x77/0x2c0 [ 59.181546][ T579] ksys_write+0x198/0x2c0 [ 59.181555][ T579] ? __ia32_sys_read+0x90/0x90 [ 59.181574][ T579] ? debug_smp_processor_id+0x17/0x20 [ 59.187370][ T418] RBP: ffffc90000ba7e80 R08: ffffffff81b7a1c3 R09: 0000000000000003 [ 59.191489][ T579] __x64_sys_write+0x7b/0x90 [ 59.191500][ T579] do_syscall_64+0x34/0x70 [ 59.191511][ T579] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.191519][ T579] RIP: 0033:0x7f6d588ea0e9 [ 59.191530][ T579] 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 [ 59.191535][ T579] RSP: 002b:00007f6d5883f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 59.197023][ T418] R10: fffff52000174fc5 R11: 1ffff92000174fc4 R12: ffff88811156ee68 [ 59.201800][ T579] RAX: ffffffffffffffda RBX: 00007f6d589fd030 RCX: 00007f6d588ea0e9 [ 59.201808][ T579] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 59.201814][ T579] RBP: 00007f6d5883f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 59.201819][ T579] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 59.201826][ T579] R13: 00007fff407af90f R14: 00007f6d5883f300 R15: 0000000000022000 [ 59.202123][ T579] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 59.208217][ T418] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 59.508824][ T418] FS: 00005555573da400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 59.517909][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.524560][ T418] CR2: 00005555568763b8 CR3: 000000010c772000 CR4: 00000000003506b0 [ 59.524580][ T389] !!!! css_release kill_css(ffff88811467f400) [ 59.532722][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.538893][ T389] !!!! css_release kill_css(ffff88811467d000) [ 59.546826][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.553633][ T593] FAULT_INJECTION: forcing a failure. [ 59.553633][ T593] name failslab, interval 1, probability 0, space 0, times 0 [ 59.561614][ T418] Call Trace: [ 59.561640][ T418] __cleanup_mnt+0x19/0x20 [ 59.574636][ T593] CPU: 1 PID: 593 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 59.577933][ T418] task_work_run+0x147/0x1b0 [ 59.581989][ T593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.581993][ T593] Call Trace: [ 59.582012][ T593] dump_stack_lvl+0x1e2/0x24b [ 59.582021][ T593] ? bfq_pos_tree_add_move+0x43e/0x43e [ 59.582032][ T593] ? selinux_kernfs_init_security+0x1a8/0x760 [ 59.582040][ T593] dump_stack+0x15/0x17 [ 59.582049][ T593] should_fail+0x3c0/0x510 [ 59.582057][ T593] ? __kernfs_new_node+0x99/0x6e0 [ 59.582068][ T593] __should_failslab+0x9f/0xe0 [ 59.582087][ T593] should_failslab+0x9/0x20 [ 59.594316][ T418] exit_to_user_mode_loop+0xc8/0xe0 [ 59.598218][ T593] __kmalloc_track_caller+0x5f/0x350 [ 59.608632][ T418] syscall_exit_to_user_mode+0x77/0xa0 [ 59.611616][ T593] kstrdup_const+0x55/0x90 [ 59.611626][ T593] __kernfs_new_node+0x99/0x6e0 [ 59.611635][ T593] ? is_module_text_address+0xe1/0x140 [ 59.611644][ T593] ? kernfs_new_node+0x170/0x170 [ 59.611653][ T593] ? ptr_to_hashval+0x60/0x60 [ 59.611669][ T593] ? arch_stack_walk+0xf8/0x140 [ 59.616744][ T418] do_syscall_64+0x40/0x70 [ 59.621845][ T593] ? snprintf+0xd6/0x120 [ 59.621855][ T593] kernfs_new_node+0x97/0x170 [ 59.621864][ T593] __kernfs_create_file+0x4a/0x270 [ 59.621873][ T593] cgroup_addrm_files+0xab8/0xfe0 [ 59.621890][ T593] ? ____kasan_kmalloc+0xdc/0x110 [ 59.628149][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.632137][ T593] ? __kasan_kmalloc+0x9/0x10 [ 59.632148][ T593] ? kmem_cache_alloc_trace+0x1dd/0x330 [ 59.632158][ T593] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 59.632173][ T593] ? delete_node+0x759/0x7b0 [ 59.636562][ T418] RIP: 0033:0x7ff5e9f18557 [ 59.641579][ T593] ? __kasan_check_read+0x11/0x20 [ 59.641587][ T593] ? delete_node+0x759/0x7b0 [ 59.641603][ T593] ? __kasan_check_write+0x14/0x20 [ 59.647133][ T418] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 59.651429][ T593] ? idr_replace+0x1c4/0x230 [ 59.651438][ T593] ? idr_get_next+0x4b0/0x4b0 [ 59.651447][ T593] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 59.651469][ T593] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 59.656926][ T418] RSP: 002b:00007ffc4a2867f8 EFLAGS: 00000246 [ 59.661901][ T593] css_populate_dir+0x137/0x370 [ 59.661912][ T593] cgroup_apply_control_enable+0x8b9/0x12f0 [ 59.661922][ T593] cgroup_apply_control+0x93/0x710 [ 59.661932][ T593] ? css_next_child+0x160/0x160 [ 59.661949][ T593] ? io_schedule+0x120/0x120 [ 59.667730][ T418] ORIG_RAX: 00000000000000a6 [ 59.672034][ T593] ? kernfs_fop_write_iter+0x15e/0x410 [ 59.672045][ T593] ? __kasan_check_write+0x14/0x20 [ 59.672055][ T593] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 59.672064][ T593] cgroup_subtree_control_write+0xd19/0x1310 [ 59.672079][ T593] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.676901][ T418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff5e9f18557 [ 59.682335][ T593] ? __kasan_check_write+0x14/0x20 [ 59.682345][ T593] ? _copy_from_iter+0x3fb/0xd60 [ 59.682361][ T593] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.688125][ T418] RDX: 00007ffc4a2868ca RSI: 000000000000000a RDI: 00007ffc4a2868c0 [ 59.692184][ T593] cgroup_file_write+0x28e/0x590 [ 59.692193][ T593] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.692204][ T593] ? mutex_lock+0xa6/0x110 [ 59.692218][ T593] ? mutex_trylock+0xb0/0xb0 [ 59.697445][ T418] RBP: 00007ffc4a2868c0 R08: 00000000ffffffff R09: 00007ffc4a286690 [ 59.701433][ T593] ? __kasan_check_write+0x14/0x20 [ 59.701443][ T593] kernfs_fop_write_iter+0x2d0/0x410 [ 59.701457][ T593] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.701473][ T593] vfs_write+0xc1c/0xf40 [ 59.705992][ T418] R10: 00005555573dbba3 R11: 0000000000000246 R12: 00007ff5e9f701f8 [ 59.710343][ T593] ? kernel_write+0x3c0/0x3c0 [ 59.715577][ T418] R13: 00007ffc4a287980 R14: 00005555573dbb00 R15: 00007ffc4a2879c0 [ 59.720610][ T593] ? mutex_trylock+0xb0/0xb0 [ 59.725774][ T418] ---[ end trace 9cc038e294c8c155 ]--- [ 59.731477][ T593] ? __fdget_pos+0x26d/0x310 [ 59.731487][ T593] ? ksys_write+0x77/0x2c0 [ 59.731495][ T593] ksys_write+0x198/0x2c0 [ 59.731504][ T593] ? __ia32_sys_read+0x90/0x90 [ 59.731521][ T593] ? debug_smp_processor_id+0x17/0x20 [ 60.010692][ T593] __x64_sys_write+0x7b/0x90 [ 60.015289][ T593] do_syscall_64+0x34/0x70 [ 60.019749][ T593] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.025634][ T593] RIP: 0033:0x7f6c01dab0e9 [ 60.030035][ T593] 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 [ 60.050129][ T593] RSP: 002b:00007f6c01d21168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 60.058884][ T593] RAX: ffffffffffffffda RBX: 00007f6c01ebdf60 RCX: 00007f6c01dab0e9 [ 60.066856][ T593] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 60.074810][ T593] RBP: 00007f6c01d211d0 R08: 0000000000000000 R09: 0000000000000000 [ 60.082937][ T593] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 60.090974][ T593] R13: 00007ffe3bc55f7f R14: 00007f6c01d21300 R15: 0000000000022000 [ 60.099684][ T593] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 60.107127][ T593] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 60.127502][ C0] !!!! css_release kill_css(ffff88811467d400) [ 60.133691][ C0] list_add corruption. prev->next should be next (ffff8881f725c060), but was ffff88811467d470. (prev=ffff88811467d470). [ 60.146423][ C0] ------------[ cut here ]------------ [ 60.151860][ C0] kernel BUG at lib/list_debug.c:28! [ 60.157124][ C0] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 60.163425][ C0] CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W 5.10.110-syzkaller-00174-g9a152518a662 #0 [ 60.174671][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.184807][ C0] RIP: 0010:__list_add_valid+0xc6/0xd0 [ 60.190266][ C0] Code: 48 c7 c7 40 d8 43 85 4c 89 e6 4c 89 f1 31 c0 e8 8d 10 40 02 0f 0b 48 c7 c7 00 d9 43 85 4c 89 f6 4c 89 e1 31 c0 e8 77 10 40 02 <0f> 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 49 [ 60.210493][ C0] RSP: 0018:ffffc900000c77e0 EFLAGS: 00010046 [ 60.216637][ C0] RAX: 0000000000000075 RBX: ffff8881f725c068 RCX: 7d74300638d53100 [ 60.224581][ C0] RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 [ 60.232535][ C0] RBP: ffffc900000c7808 R08: ffffffff8153b2f8 R09: ffffed103ee44e83 [ 60.240497][ C0] R10: ffffed103ee44e83 R11: 1ffff1103ee44e82 R12: ffff88811467d470 [ 60.248463][ C0] R13: dffffc0000000000 R14: ffff8881f725c060 R15: ffff88811467d470 [ 60.256434][ C0] FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 60.265436][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.272174][ C0] CR2: 000055d9af3cdf28 CR3: 0000000112ade000 CR4: 00000000003506b0 [ 60.280223][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.288303][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.296364][ C0] Call Trace: [ 60.299642][ C0] insert_work+0x107/0x330 [ 60.304070][ C0] __queue_work+0x971/0xd30 [ 60.308556][ C0] queue_work_on+0xf2/0x150 [ 60.313049][ C0] ? wq_worker_last_func+0x50/0x50 [ 60.318154][ C0] ? __alloc_reserved_percpu+0x30/0x30 [ 60.323603][ C0] css_release+0xc0/0xd0 [ 60.327926][ C0] percpu_ref_switch_to_atomic_rcu+0x5a2/0x5b0 [ 60.334065][ C0] ? percpu_ref_noop_confirm_switch+0x10/0x10 [ 60.340107][ C0] rcu_do_batch+0x4f8/0xbc0 [ 60.344582][ C0] ? local_bh_enable+0x20/0x20 [ 60.349319][ C0] ? _raw_spin_lock_irqsave+0xf8/0x210 [ 60.354778][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 60.360570][ C0] ? rcu_report_qs_rnp+0x2e0/0x3b0 [ 60.365677][ C0] rcu_core+0x59b/0xe30 [ 60.369943][ C0] ? rcu_cpu_kthread_park+0x90/0x90 [ 60.375145][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 60.380339][ C0] ? sched_clock+0x3a/0x40 [ 60.384756][ C0] ? sched_clock_cpu+0x1b/0x3b0 [ 60.389746][ C0] ? irqtime_account_irq+0x76/0x270 [ 60.395023][ C0] rcu_core_si+0x9/0x10 [ 60.399155][ C0] __do_softirq+0x27e/0x596 [ 60.403691][ C0] ? ksoftirqd_should_run+0x20/0x20 [ 60.409126][ C0] run_ksoftirqd+0x23/0x30 [ 60.413539][ C0] smpboot_thread_fn+0x551/0x930 [ 60.418474][ C0] ? __sched_text_start+0x8/0x8 [ 60.423497][ C0] ? cpu_report_death+0x1a0/0x1a0 [ 60.428589][ C0] ? schedule+0x162/0x1e0 [ 60.432914][ C0] ? __kasan_check_read+0x11/0x20 [ 60.437912][ C0] ? __kthread_parkme+0x194/0x1d0 [ 60.443366][ C0] kthread+0x349/0x3d0 [ 60.447666][ C0] ? cpu_report_death+0x1a0/0x1a0 [ 60.452688][ C0] ? kthread_blkcg+0xd0/0xd0 [ 60.457267][ C0] ret_from_fork+0x1f/0x30 [ 60.461716][ C0] Modules linked in: [ 60.465602][ C0] ---[ end trace 9cc038e294c8c156 ]--- [ 60.471064][ C0] RIP: 0010:__list_add_valid+0xc6/0xd0 [ 60.476493][ C0] Code: 48 c7 c7 40 d8 43 85 4c 89 e6 4c 89 f1 31 c0 e8 8d 10 40 02 0f 0b 48 c7 c7 00 d9 43 85 4c 89 f6 4c 89 e1 31 c0 e8 77 10 40 02 <0f> 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 49 [ 60.496344][ C0] RSP: 0018:ffffc900000c77e0 EFLAGS: 00010046 [ 60.502393][ C0] RAX: 0000000000000075 RBX: ffff8881f725c068 RCX: 7d74300638d53100 [ 60.510618][ C0] RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 [ 60.518568][ C0] RBP: ffffc900000c7808 R08: ffffffff8153b2f8 R09: ffffed103ee44e83 [ 60.526599][ C0] R10: ffffed103ee44e83 R11: 1ffff1103ee44e82 R12: ffff88811467d470 [ 60.534558][ C0] R13: dffffc0000000000 R14: ffff8881f725c060 R15: ffff88811467d470 [ 60.542603][ C0] FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 60.551610][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.558257][ C0] CR2: 000055d9af3cdf28 CR3: 0000000112ade000 CR4: 00000000003506b0 [ 60.566321][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.574283][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.582412][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 61.687837][ C0] Shutting down cpus with NMI [ 61.692793][ C0] Kernel Offset: disabled [ 61.697280][ C0] Rebooting in 86400 seconds..