[ 20.225819][ C0] !!!! put_css_set_locked css_put(ffff88811f2d0a00) [ 20.232546][ C0] !!!! put_css_set_locked css_put(ffff88811f298c00) [ 20.239191][ C0] !!!! put_css_set_locked cgroup_put(self ffff88810578e000) [ 20.246552][ C0] !!!! put_css_set_locked cgroup_put(self ffff888101fcc000) [ 20.254118][ C0] !!!! put_css_set_locked cgroup_put(self ffff888105788000) [ 20.505589][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 20.595767][ T104] device bridge_slave_1 left promiscuous mode [ 20.601912][ T104] bridge0: port 2(bridge_slave_1) entered disabled state [ 20.615892][ T104] device bridge_slave_0 left promiscuous mode [ 20.622165][ T104] bridge0: port 1(bridge_slave_0) entered disabled state Warning: Permanently added '10.128.1.106' (ECDSA) to the list of known hosts. 2022/06/06 21:51:28 parsed 1 programs [ 38.204834][ T23] kauditd_printk_skb: 65 callbacks suppressed [ 38.204840][ T23] audit: type=1400 audit(1654552288.539:148): avc: denied { mounton } for pid=403 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 [ 38.205727][ T403] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.240948][ T403] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.247643][ T403] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) 2022/06/06 21:51:28 executed programs: 0 [ 38.254289][ T403] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 38.261011][ T403] cgroup: Unknown subsys name 'net' [ 38.266546][ T403] cgroup: Unknown subsys name 'devices' [ 38.272939][ T403] cgroup: Unknown subsys name 'hugetlb' [ 38.278615][ T403] cgroup: Unknown subsys name 'rlimit' [ 38.284950][ T23] audit: type=1400 audit(1654552288.619:149): avc: denied { mounton } for pid=403 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 [ 38.326962][ T23] audit: type=1400 audit(1654552288.619:150): avc: denied { mount } for pid=403 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 [ 38.358813][ T23] audit: type=1400 audit(1654552288.659:151): avc: denied { mounton } for pid=408 comm="syz-executor.2" 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 [ 38.385280][ T23] audit: type=1400 audit(1654552288.659:152): avc: denied { module_request } for pid=408 comm="syz-executor.2" kmod="netdev-nr2" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 38.437778][ T408] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.444942][ T408] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.452370][ T408] device bridge_slave_0 entered promiscuous mode [ 38.460268][ T408] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.467347][ T408] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.474842][ T408] device bridge_slave_1 entered promiscuous mode [ 38.489552][ T412] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.496801][ T412] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.504244][ T412] device bridge_slave_0 entered promiscuous mode [ 38.512238][ T412] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.519326][ T412] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.526714][ T412] device bridge_slave_1 entered promiscuous mode [ 38.572831][ T419] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.580086][ T419] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.587629][ T419] device bridge_slave_0 entered promiscuous mode [ 38.610570][ T416] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.617703][ T416] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.625145][ T416] device bridge_slave_0 entered promiscuous mode [ 38.631914][ T419] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.638999][ T419] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.646471][ T419] device bridge_slave_1 entered promiscuous mode [ 38.676108][ T416] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.683140][ T416] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.690803][ T416] device bridge_slave_1 entered promiscuous mode [ 38.709886][ T414] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.717065][ T414] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.724826][ T414] device bridge_slave_0 entered promiscuous mode [ 38.734593][ T408] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.741755][ T408] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.749037][ T408] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.756178][ T408] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.766177][ T412] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.773206][ T412] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.780524][ T412] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.787583][ T412] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.805446][ T418] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.812678][ T418] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.820134][ T418] device bridge_slave_0 entered promiscuous mode [ 38.827070][ T414] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.834192][ T414] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.841577][ T414] device bridge_slave_1 entered promiscuous mode [ 38.875526][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 38.883458][ T24] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.890802][ T24] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.898080][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 38.906726][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 38.918052][ T418] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.925159][ T418] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.932857][ T418] device bridge_slave_1 entered promiscuous mode [ 38.974358][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.983873][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 38.991489][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 38.999169][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.007565][ T379] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.014589][ T379] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.022049][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.030180][ T379] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.037199][ T379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.044611][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.052661][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.090285][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.098690][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.108522][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.117856][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.125834][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.133960][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.141992][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.173069][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.182807][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.199598][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.208346][ T24] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.215461][ T24] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.222902][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.231185][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.238328][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.245955][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.267863][ T412] !!!! css_create css ffff88810f5a0c00 !!!! [ 39.274006][ T412] !!!! css_create css ffff88812157c000 !!!! [ 39.275579][ T23] audit: type=1400 audit(1654552289.609:153): avc: denied { mount } for pid=412 comm="syz-executor.3" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 39.285873][ T412] !!!! css_create css ffff88810f744000 !!!! [ 39.316156][ T412] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 39.323760][ T412] !!!! cgroup_kn_unlock css_put(ffff888121578000) [ 39.331660][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.336210][ T412] !!!! css_create css ffff88810f960400 !!!! [ 39.346647][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.346756][ T412] !!!! css_create css ffff88810f22ce00 !!!! [ 39.354222][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.359944][ T412] !!!! cgroup_kn_unlock css_put(ffff88811dcc4010) [ 39.374683][ T412] !!!! put_css_set_locked css_put(ffffffff85fb68e0) [ 39.381822][ T412] !!!! put_css_set_locked css_put(ffff88810f5a0c00) [ 39.388473][ T412] !!!! put_css_set_locked css_put(ffffffff85ef4300) [ 39.395136][ T412] !!!! put_css_set_locked css_put(ffffffff86918540) [ 39.401968][ T412] !!!! put_css_set_locked css_put(ffff88812157c000) [ 39.408632][ T412] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 39.415334][ T412] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 39.422057][ T412] !!!! put_css_set_locked css_put(ffff88810f744000) [ 39.428818][ T412] !!!! put_css_set_locked cgroup_put(self ffff888121578000) [ 39.436427][ T412] !!!! cgroup_kn_unlock css_put(ffff888121694000) [ 39.443238][ T412] !!!! css_create css ffff88810f963000 !!!! [ 39.449395][ T412] !!!! css_create css ffff88810f170800 !!!! [ 39.455383][ T412] !!!! css_create css ffff88810f170a00 !!!! [ 39.461673][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.469576][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.477856][ T379] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.484860][ T379] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.492349][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.500637][ T379] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.509461][ T379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.536136][ T412] !!!! cgroup_kn_unlock css_put(ffff88811dc80010) [ 39.542865][ T412] !!!! put_css_set_locked css_put(ffff88810f960400) [ 39.549538][ T412] !!!! put_css_set_locked css_put(ffff88810f5a0c00) [ 39.556370][ T412] !!!! put_css_set_locked css_put(ffff88810f22ce00) [ 39.563024][ T412] !!!! put_css_set_locked css_put(ffffffff86918540) [ 39.569670][ T412] !!!! put_css_set_locked css_put(ffff88812157c000) [ 39.577751][ T412] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 39.584451][ T412] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 39.591100][ T412] !!!! put_css_set_locked css_put(ffff88810f744000) [ 39.597833][ T412] !!!! put_css_set_locked cgroup_put(self ffff888121578000) [ 39.605179][ T412] !!!! put_css_set_locked cgroup_put(self ffff888121694000) [ 39.613362][ T412] !!!! cgroup_kn_unlock css_put(ffff88810f7c6000) [ 39.625846][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.626355][ T439] !!!! put_css_set_locked css_put(ffff88810f960400) [ 39.633476][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.639885][ T439] !!!! put_css_set_locked css_put(ffff88810f5a0c00) [ 39.639889][ T439] !!!! put_css_set_locked css_put(ffff88810f22ce00) [ 39.639892][ T439] !!!! put_css_set_locked css_put(ffff88810f963000) [ 39.639896][ T439] !!!! put_css_set_locked css_put(ffff88812157c000) [ 39.639900][ T439] !!!! put_css_set_locked css_put(ffff88810f170800) [ 39.639904][ T439] !!!! put_css_set_locked css_put(ffff88810f170a00) [ 39.639907][ T439] !!!! put_css_set_locked css_put(ffff88810f744000) [ 39.639911][ T439] !!!! put_css_set_locked cgroup_put(self ffff888121578000) [ 39.639922][ T439] !!!! put_css_set_locked cgroup_put(self ffff88810f7c6000) [ 39.639927][ T439] !!!! put_css_set_locked cgroup_put(self ffff888121694000) [ 39.640077][ T439] !!!! control_disable kill_css(ffff88811f298c00) [ 39.648617][ T23] audit: type=1400 audit(1654552289.969:154): avc: denied { mounton } for pid=438 comm="syz-executor.3" path="/root/syzkaller-testdir346425101/syzkaller.7OqEtW/0/file0" dev="sda1" ino=1158 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 39.655288][ T439] !!!! control_disable kill_css(ffff88810f744000) [ 39.663535][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.672694][ T439] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 39.675271][ T23] audit: type=1400 audit(1654552290.009:155): avc: denied { append } for pid=143 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 39.795735][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.804078][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.805511][ C1] !!!! css_killed_ref_fn enqueue(ffff88811f298c00) [ 39.812143][ T23] audit: type=1400 audit(1654552290.009:156): avc: denied { open } for pid=143 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 [ 39.818436][ T24] !!!! css_killed_work_fn css_put(ffff88811f298c00) [ 39.818442][ T24] !!!! css_release enqueue(ffff88811f298c00) [ 39.825613][ C1] !!!! css_killed_ref_fn enqueue(ffff88810f744000) [ 39.841143][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.847540][ T24] !!!! css_killed_work_fn css_put(ffff88810f744000) [ 39.854041][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.861025][ T24] !!!! css_release enqueue(ffff88810f744000) [ 39.868905][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.875613][ T441] !!!! css_create css ffff88810fbdd800 !!!! [ 39.883445][ T23] audit: type=1400 audit(1654552290.009:157): avc: denied { getattr } for pid=143 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 [ 39.889757][ T441] !!!! css_create css ffff88810fbdd400 !!!! [ 39.898048][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.903734][ T441] FAULT_INJECTION: forcing a failure. [ 39.903734][ T441] name failslab, interval 1, probability 0, space 0, times 1 [ 39.926376][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.932281][ T441] CPU: 1 PID: 441 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 39.940342][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.952564][ T441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.952568][ T441] Call Trace: [ 39.952585][ T441] dump_stack_lvl+0x1e2/0x24b [ 39.952595][ T441] ? bfq_pos_tree_add_move+0x43e/0x43e [ 39.952604][ T441] dump_stack+0x15/0x17 [ 39.952612][ T441] should_fail+0x3c0/0x510 [ 39.952623][ T441] ? allocate_cgrp_cset_links+0xb3/0x270 [ 39.952635][ T441] __should_failslab+0x9f/0xe0 [ 39.952643][ T441] should_failslab+0x9/0x20 [ 39.952653][ T441] kmem_cache_alloc_trace+0x3a/0x330 [ 39.952662][ T441] allocate_cgrp_cset_links+0xb3/0x270 [ 39.952670][ T441] find_css_set+0xb13/0x1db0 [ 39.952680][ T441] ? _raw_spin_unlock_irq+0x4e/0x70 [ 39.952690][ T441] ? rcu_sync_enter_start+0x70/0x70 [ 39.952701][ T441] ? cgroup_migrate_prepare_dst+0x950/0x950 [ 39.952708][ T441] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 39.952719][ T441] ? refcount_dec_if_one+0x130/0x130 [ 39.952727][ T441] ? cpumask_next+0x23/0x30 [ 39.952735][ T441] ? percpu_down_write+0x226/0x380 [ 39.952746][ T441] cgroup_migrate_prepare_dst+0xd1/0x950 [ 39.952757][ T441] cgroup_apply_control+0x54e/0x710 [ 39.952767][ T441] ? css_next_child+0x160/0x160 [ 39.952778][ T441] ? __kasan_check_write+0x14/0x20 [ 39.952788][ T441] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 39.952798][ T441] cgroup_subtree_control_write+0xd19/0x1310 [ 39.952809][ T441] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 39.952818][ T441] ? __kasan_check_write+0x14/0x20 [ 39.952828][ T441] ? _copy_from_iter+0x3fb/0xd60 [ 39.952838][ T441] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 39.952846][ T441] cgroup_file_write+0x28e/0x590 [ 39.952856][ T441] ? cgroup_seqfile_stop+0xc0/0xc0 [ 39.952865][ T441] ? mutex_lock+0xa6/0x110 [ 39.952878][ T441] ? mutex_trylock+0xb0/0xb0 [ 39.952887][ T441] ? __kasan_check_write+0x14/0x20 [ 39.952895][ T441] kernfs_fop_write_iter+0x2d0/0x410 [ 39.952902][ T441] ? cgroup_seqfile_stop+0xc0/0xc0 [ 39.952911][ T441] vfs_write+0xc1c/0xf40 [ 39.952926][ T441] ? kernel_write+0x3c0/0x3c0 [ 39.952936][ T441] ? mutex_trylock+0xb0/0xb0 [ 39.952945][ T441] ? __fdget_pos+0x26d/0x310 [ 39.952954][ T441] ? ksys_write+0x77/0x2c0 [ 39.952963][ T441] ksys_write+0x198/0x2c0 [ 39.952972][ T441] ? __ia32_sys_read+0x90/0x90 [ 39.952989][ T441] ? debug_smp_processor_id+0x17/0x20 [ 39.960888][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.970715][ T441] __x64_sys_write+0x7b/0x90 [ 39.970726][ T441] do_syscall_64+0x34/0x70 [ 39.970737][ T441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.970754][ T441] RIP: 0033:0x7f157230c0e9 [ 39.979012][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.988745][ T441] 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 [ 39.988751][ T441] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.988763][ T441] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 39.988779][ T441] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 39.992270][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.996687][ T441] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 [ 39.996692][ T441] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 39.996698][ T441] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 39.997164][ T441] !!!! control_disable kill_css(ffff88810fbdd800) [ 40.002824][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.016759][ T441] !!!! control_disable kill_css(ffff88810fbdd400) [ 40.022133][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.026415][ T441] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.057835][ C1] !!!! css_killed_ref_fn enqueue(ffff88810fbdd800) [ 40.357581][ T24] !!!! css_killed_work_fn css_put(ffff88810fbdd800) [ 40.364605][ T24] !!!! css_release enqueue(ffff88810fbdd800) [ 40.372343][ C1] !!!! css_killed_ref_fn enqueue(ffff88810fbdd400) [ 40.378994][ T24] !!!! css_killed_work_fn css_put(ffff88810fbdd400) [ 40.385840][ T24] !!!! css_release enqueue(ffff88810fbdd400) [ 40.397389][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.405781][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.413883][ T379] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.420950][ T379] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.425750][ T443] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.429367][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 40.435015][ T443] !!!! css_create css ffff88810fe01800 !!!! [ 40.445909][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.451161][ T443] !!!! css_create css ffff88810fe02800 !!!! [ 40.459477][ T379] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.464993][ T443] FAULT_INJECTION: forcing a failure. [ 40.464993][ T443] name failslab, interval 1, probability 0, space 0, times 0 [ 40.471981][ T379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.472598][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 40.484626][ T443] CPU: 1 PID: 443 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 40.484632][ T443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.484635][ T443] Call Trace: [ 40.484653][ T443] dump_stack_lvl+0x1e2/0x24b [ 40.484664][ T443] ? bfq_pos_tree_add_move+0x43e/0x43e [ 40.484673][ T443] dump_stack+0x15/0x17 [ 40.484681][ T443] should_fail+0x3c0/0x510 [ 40.484692][ T443] ? allocate_cgrp_cset_links+0xb3/0x270 [ 40.484702][ T443] __should_failslab+0x9f/0xe0 [ 40.484711][ T443] should_failslab+0x9/0x20 [ 40.484720][ T443] kmem_cache_alloc_trace+0x3a/0x330 [ 40.484738][ T443] allocate_cgrp_cset_links+0xb3/0x270 [ 40.492289][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.499690][ T443] find_css_set+0xb13/0x1db0 [ 40.499702][ T443] ? _raw_spin_unlock_irq+0x4e/0x70 [ 40.499712][ T443] ? rcu_sync_enter_start+0x70/0x70 [ 40.499722][ T443] ? cgroup_migrate_prepare_dst+0x950/0x950 [ 40.499729][ T443] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 40.499747][ T443] ? refcount_dec_if_one+0x130/0x130 [ 40.511814][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 40.520527][ T443] ? cpumask_next+0x23/0x30 [ 40.520538][ T443] ? percpu_down_write+0x226/0x380 [ 40.520550][ T443] cgroup_migrate_prepare_dst+0xd1/0x950 [ 40.520559][ T443] cgroup_apply_control+0x54e/0x710 [ 40.520569][ T443] ? css_next_child+0x160/0x160 [ 40.520582][ T443] ? __kasan_check_write+0x14/0x20 [ 40.520591][ T443] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 40.520600][ T443] cgroup_subtree_control_write+0xd19/0x1310 [ 40.520610][ T443] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 40.520618][ T443] ? __kasan_check_write+0x14/0x20 [ 40.520629][ T443] ? _copy_from_iter+0x3fb/0xd60 [ 40.520637][ T443] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 40.520645][ T443] cgroup_file_write+0x28e/0x590 [ 40.520655][ T443] ? cgroup_seqfile_stop+0xc0/0xc0 [ 40.520664][ T443] ? mutex_lock+0xa6/0x110 [ 40.520672][ T443] ? mutex_trylock+0xb0/0xb0 [ 40.520680][ T443] ? __kasan_check_write+0x14/0x20 [ 40.520698][ T443] kernfs_fop_write_iter+0x2d0/0x410 [ 40.525104][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.528981][ T443] ? cgroup_seqfile_stop+0xc0/0xc0 [ 40.528993][ T443] vfs_write+0xc1c/0xf40 [ 40.529003][ T443] ? kernel_write+0x3c0/0x3c0 [ 40.529014][ T443] ? mutex_trylock+0xb0/0xb0 [ 40.529025][ T443] ? __fdget_pos+0x26d/0x310 [ 40.529031][ T443] ? ksys_write+0x77/0x2c0 [ 40.529049][ T443] ksys_write+0x198/0x2c0 [ 40.535367][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 40.538633][ T443] ? __ia32_sys_read+0x90/0x90 [ 40.538643][ T443] ? debug_smp_processor_id+0x17/0x20 [ 40.538651][ T443] __x64_sys_write+0x7b/0x90 [ 40.538661][ T443] do_syscall_64+0x34/0x70 [ 40.538671][ T443] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.538679][ T443] RIP: 0033:0x7f157230c0e9 [ 40.538689][ T443] 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 [ 40.538695][ T443] RSP: 002b:00007f1572282168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.538707][ T443] RAX: ffffffffffffffda RBX: 00007f157241ef60 RCX: 00007f157230c0e9 [ 40.538713][ T443] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 40.538719][ T443] RBP: 00007f15722821d0 R08: 0000000000000000 R09: 0000000000000000 [ 40.538725][ T443] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 40.538731][ T443] R13: 00007fffbdc705cf R14: 00007f1572282300 R15: 0000000000022000 [ 40.549203][ T443] !!!! control_disable kill_css(ffff88810fe01800) [ 40.554128][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.568959][ T443] !!!! control_disable kill_css(ffff88810fe02800) [ 40.577144][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 40.586529][ T443] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.897759][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.905859][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 40.914171][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.915498][ C1] !!!! css_killed_ref_fn enqueue(ffff88810fe01800) [ 40.922556][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.928826][ C1] !!!! css_killed_ref_fn enqueue(ffff88810fe02800) [ 40.931613][ T24] !!!! css_killed_work_fn css_put(ffff88810fe01800) [ 40.937768][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.943578][ T24] !!!! css_release enqueue(ffff88810fe01800) [ 40.950685][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.958797][ T24] !!!! css_killed_work_fn css_put(ffff88810fe02800) [ 40.964860][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.972800][ T24] !!!! css_release enqueue(ffff88810fe02800) [ 40.979781][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.988287][ T445] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 40.993980][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.001425][ T445] !!!! css_create css ffff88810e922000 !!!! [ 41.007859][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.014954][ T445] !!!! css_create css ffff88810e923000 !!!! [ 41.020866][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.029110][ T445] FAULT_INJECTION: forcing a failure. [ 41.029110][ T445] name failslab, interval 1, probability 0, space 0, times 0 [ 41.034962][ T379] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.042876][ T445] CPU: 1 PID: 445 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 41.055257][ T379] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.062508][ T445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.062512][ T445] Call Trace: [ 41.062529][ T445] dump_stack_lvl+0x1e2/0x24b [ 41.062547][ T445] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.072945][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.079842][ T445] dump_stack+0x15/0x17 [ 41.079857][ T445] should_fail+0x3c0/0x510 [ 41.079868][ T445] ? allocate_cgrp_cset_links+0xb3/0x270 [ 41.079886][ T445] __should_failslab+0x9f/0xe0 [ 41.090192][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.093197][ T445] should_failslab+0x9/0x20 [ 41.093215][ T445] kmem_cache_alloc_trace+0x3a/0x330 [ 41.098195][ T379] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.103460][ T445] allocate_cgrp_cset_links+0xb3/0x270 [ 41.103477][ T445] find_css_set+0xb13/0x1db0 [ 41.111617][ T379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.115722][ T445] ? _raw_spin_unlock_irq+0x4e/0x70 [ 41.115740][ T445] ? rcu_sync_enter_start+0x70/0x70 [ 41.120405][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 41.125737][ T445] ? cgroup_migrate_prepare_dst+0x950/0x950 [ 41.125746][ T445] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 41.125756][ T445] ? refcount_dec_if_one+0x130/0x130 [ 41.125766][ T445] ? cpumask_next+0x23/0x30 [ 41.125775][ T445] ? percpu_down_write+0x226/0x380 [ 41.125785][ T445] cgroup_migrate_prepare_dst+0xd1/0x950 [ 41.125795][ T445] cgroup_apply_control+0x54e/0x710 [ 41.125803][ T445] ? css_next_child+0x160/0x160 [ 41.125814][ T445] ? __kasan_check_write+0x14/0x20 [ 41.125830][ T445] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 41.130845][ T379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 41.138600][ T445] cgroup_subtree_control_write+0xd19/0x1310 [ 41.138609][ T445] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.138620][ T445] ? __kasan_check_write+0x14/0x20 [ 41.138630][ T445] ? _copy_from_iter+0x3fb/0xd60 [ 41.138645][ T445] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 41.280684][ T445] cgroup_file_write+0x28e/0x590 [ 41.285617][ T445] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.290704][ T445] ? mutex_lock+0xa6/0x110 [ 41.295105][ T445] ? mutex_trylock+0xb0/0xb0 [ 41.299685][ T445] ? __kasan_check_write+0x14/0x20 [ 41.304776][ T445] kernfs_fop_write_iter+0x2d0/0x410 [ 41.310040][ T445] ? cgroup_seqfile_stop+0xc0/0xc0 [ 41.315132][ T445] vfs_write+0xc1c/0xf40 [ 41.319361][ T445] ? kernel_write+0x3c0/0x3c0 [ 41.324073][ T445] ? mutex_trylock+0xb0/0xb0 [ 41.328648][ T445] ? __fdget_pos+0x26d/0x310 [ 41.333232][ T445] ? ksys_write+0x77/0x2c0 [ 41.337629][ T445] ksys_write+0x198/0x2c0 [ 41.342027][ T445] ? __ia32_sys_read+0x90/0x90 [ 41.346766][ T445] ? debug_smp_processor_id+0x17/0x20 [ 41.352182][ T445] __x64_sys_write+0x7b/0x90 [ 41.356791][ T445] do_syscall_64+0x34/0x70 [ 41.361188][ T445] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.367169][ T445] RIP: 0033:0x7f157230c0e9 [ 41.371658][ T445] 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 [ 41.391247][ T445] RSP: 002b:00007f1572282168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 41.399845][ T445] RAX: ffffffffffffffda RBX: 00007f157241ef60 RCX: 00007f157230c0e9 [ 41.407980][ T445] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 41.416143][ T445] RBP: 00007f15722821d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.424113][ T445] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.432072][ T445] R13: 00007fffbdc705cf R14: 00007f1572282300 R15: 0000000000022000 [ 41.440597][ T445] !!!! control_disable kill_css(ffff88810e922000) [ 41.447312][ T445] !!!! control_disable kill_css(ffff88810e923000) [ 41.461929][ T445] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.469656][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 41.470061][ T414] !!!! css_create css ffff88810f5a0e00 !!!! [ 41.478798][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 41.485917][ C1] !!!! css_killed_ref_fn enqueue(ffff88810e922000) [ 41.493517][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 41.499672][ T414] !!!! css_create css ffff8881105f2000 !!!! [ 41.506997][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 41.512035][ T24] !!!! css_killed_work_fn css_put(ffff88810e922000) [ 41.521053][ T414] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.526161][ T24] !!!! css_release enqueue(ffff88810e922000) [ 41.540091][ C1] !!!! css_killed_ref_fn enqueue(ffff88810e923000) [ 41.547147][ T19] !!!! css_killed_work_fn css_put(ffff88810e923000) [ 41.553868][ T19] !!!! css_release enqueue(ffff88810e923000) [ 41.563733][ T414] !!!! cgroup_kn_unlock css_put(ffff8881105f6000) [ 41.566138][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 41.570882][ T414] !!!! css_create css ffff8881105c6400 !!!! [ 41.579210][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.584527][ T414] !!!! css_create css ffff88810f851000 !!!! [ 41.598723][ T419] !!!! cgroup_kn_unlock css_put(ffff88810578e000) [ 41.600094][ T414] !!!! cgroup_kn_unlock css_put(ffff88811dcc4010) [ 41.605585][ T448] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.612537][ T414] !!!! put_css_set_locked css_put(ffffffff85fb68e0) [ 41.624899][ T414] !!!! put_css_set_locked css_put(ffff88810f5a0e00) [ 41.631569][ T414] !!!! put_css_set_locked css_put(ffffffff85ef4300) [ 41.638323][ T414] !!!! put_css_set_locked css_put(ffffffff86918540) [ 41.644965][ T414] !!!! put_css_set_locked css_put(ffff8881105f2000) [ 41.651698][ T414] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 41.658344][ T414] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 41.664986][ T414] !!!! put_css_set_locked css_put(ffff888100127800) [ 41.671629][ T414] !!!! put_css_set_locked cgroup_put(self ffff8881105f6000) [ 41.680505][ T414] !!!! cgroup_kn_unlock css_put(ffff8881105f0000) [ 41.680888][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 41.687545][ T418] !!!! css_create css ffff88811f297000 !!!! [ 41.695775][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.701297][ T418] !!!! css_create css ffff888110578000 !!!! [ 41.709659][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 41.714830][ T418] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 41.722785][ T419] !!!! put_css_set_locked css_put(ffffffff85fb68e0) [ 41.722791][ T419] !!!! put_css_set_locked css_put(ffff88811f296a00) [ 41.722795][ T419] !!!! put_css_set_locked css_put(ffffffff85ef4300) [ 41.722799][ T419] !!!! put_css_set_locked css_put(ffffffff86918540) [ 41.722804][ T419] !!!! put_css_set_locked css_put(ffff88810578c000) [ 41.722816][ T419] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 41.769435][ T419] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 41.776102][ T419] !!!! put_css_set_locked css_put(ffff888100127800) [ 41.782765][ T419] !!!! put_css_set_locked cgroup_put(self ffff88810578e000) [ 41.790623][ T419] !!!! cgroup_kn_unlock css_put(ffff888105788000) [ 41.790683][ T448] !!!! css_create css ffff8881107f5400 !!!! [ 41.803766][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 41.803868][ T448] !!!! css_create css ffff8881107e8800 !!!! [ 41.811936][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 41.818167][ T448] !!!! css_create css ffff8881107e8c00 !!!! [ 41.826119][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 41.833284][ T448] FAULT_INJECTION: forcing a failure. [ 41.833284][ T448] name failslab, interval 1, probability 0, space 0, times 0 [ 41.841727][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 41.854349][ T448] CPU: 0 PID: 448 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 41.862587][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 41.872277][ T448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.872282][ T448] Call Trace: [ 41.872301][ T448] dump_stack_lvl+0x1e2/0x24b [ 41.872309][ T448] ? panic+0x7d7/0x7d7 [ 41.872317][ T448] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.872328][ T448] ? __kasan_check_write+0x14/0x20 [ 41.872347][ T448] ? __switch_to+0x5e4/0x1220 [ 41.917820][ T448] dump_stack+0x15/0x17 [ 41.922045][ T448] should_fail+0x3c0/0x510 [ 41.926455][ T448] __should_failslab+0x9f/0xe0 [ 41.931200][ T448] should_failslab+0x9/0x20 [ 41.935677][ T448] kmem_cache_alloc+0x3f/0x300 [ 41.940421][ T448] ? __kernfs_new_node+0xdb/0x6e0 [ 41.945418][ T448] __kernfs_new_node+0xdb/0x6e0 [ 41.950251][ T448] ? stack_trace_save+0x1f0/0x1f0 [ 41.955254][ T448] ? kernfs_new_node+0x170/0x170 [ 41.960191][ T448] ? ptr_to_hashval+0x60/0x60 [ 41.964849][ T448] ? snprintf+0xd6/0x120 [ 41.969083][ T448] kernfs_new_node+0x97/0x170 [ 41.973754][ T448] __kernfs_create_file+0x4a/0x270 [ 41.978874][ T448] cgroup_addrm_files+0xab8/0xfe0 [ 41.984002][ T448] ? cgroup_apply_control_enable+0x734/0x12e0 [ 41.990048][ T448] ? cgroup_apply_control+0x93/0x710 [ 41.995304][ T448] ? cgroup_subtree_control_write+0xd19/0x1310 [ 42.001447][ T448] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 42.007575][ T448] ? delete_node+0x759/0x7b0 [ 42.012137][ T448] ? __kasan_check_read+0x11/0x20 [ 42.017128][ T448] ? delete_node+0x759/0x7b0 [ 42.021695][ T448] ? __kasan_check_write+0x14/0x20 [ 42.026864][ T448] ? __radix_tree_replace+0x246/0x2e0 [ 42.032208][ T448] ? idr_get_next+0x4b0/0x4b0 [ 42.036852][ T448] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 42.041845][ T448] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 42.047017][ T448] css_populate_dir+0x137/0x370 [ 42.051843][ T448] cgroup_apply_control_enable+0x629/0x12e0 [ 42.057717][ T448] cgroup_apply_control+0x93/0x710 [ 42.062813][ T448] ? css_next_child+0x160/0x160 [ 42.067639][ T448] ? io_schedule+0x120/0x120 [ 42.072227][ T448] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.077695][ T448] ? __kasan_check_write+0x14/0x20 [ 42.082798][ T448] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.088059][ T448] cgroup_subtree_control_write+0xd19/0x1310 [ 42.094010][ T448] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.099980][ T448] ? __kasan_check_write+0x14/0x20 [ 42.105146][ T448] ? _copy_from_iter+0x3fb/0xd60 [ 42.110057][ T448] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.116007][ T448] cgroup_file_write+0x28e/0x590 [ 42.120917][ T448] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.126001][ T448] ? mutex_lock+0xa6/0x110 [ 42.131357][ T448] ? mutex_trylock+0xb0/0xb0 [ 42.135928][ T448] ? __kasan_check_write+0x14/0x20 [ 42.141009][ T448] kernfs_fop_write_iter+0x2d0/0x410 [ 42.146330][ T448] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.151432][ T448] vfs_write+0xc1c/0xf40 [ 42.155657][ T448] ? kernel_write+0x3c0/0x3c0 [ 42.160402][ T448] ? mutex_trylock+0xb0/0xb0 [ 42.164970][ T448] ? __fdget_pos+0x26d/0x310 [ 42.169797][ T448] ? ksys_write+0x77/0x2c0 [ 42.174198][ T448] ksys_write+0x198/0x2c0 [ 42.178613][ T448] ? __ia32_sys_read+0x90/0x90 [ 42.183359][ T448] ? debug_smp_processor_id+0x17/0x20 [ 42.188705][ T448] __x64_sys_write+0x7b/0x90 [ 42.193275][ T448] do_syscall_64+0x34/0x70 [ 42.197663][ T448] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.203553][ T448] RIP: 0033:0x7f157230c0e9 [ 42.207961][ T448] 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 [ 42.227536][ T448] RSP: 002b:00007f1572282168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.235930][ T448] RAX: ffffffffffffffda RBX: 00007f157241ef60 RCX: 00007f157230c0e9 [ 42.243897][ T448] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 42.251843][ T448] RBP: 00007f15722821d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.259796][ T448] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.267748][ T448] R13: 00007fffbdc705cf R14: 00007f1572282300 R15: 0000000000022000 [ 42.277418][ T448] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 42.284604][ T448] !!!! control_disable kill_css(ffff8881107f5400) [ 42.293614][ T448] !!!! control_disable kill_css(ffff8881107e8800) [ 42.300534][ T448] !!!! control_disable kill_css(ffff8881107e8c00) [ 42.307471][ T414] !!!! css_create css ffff8881109c6c00 !!!! [ 42.307823][ T448] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.313435][ T414] !!!! css_create css ffff8881217bfe00 !!!! [ 42.326007][ C1] !!!! css_killed_ref_fn enqueue(ffff8881107f5400) [ 42.326022][ C0] !!!! css_killed_ref_fn enqueue(ffff8881107e8800) [ 42.332911][ T414] !!!! css_create css ffff8881217bf200 !!!! [ 42.339191][ C1] !!!! css_killed_ref_fn enqueue(ffff8881107e8c00) [ 42.352671][ T408] !!!! css_create css ffff88810f5a0200 !!!! [ 42.358829][ T414] !!!! cgroup_kn_unlock css_put(ffff88811dc80010) [ 42.366047][ T408] !!!! css_create css ffff888110944000 !!!! [ 42.372038][ T408] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.372057][ T383] !!!! css_killed_work_fn css_put(ffff8881107f5400) [ 42.385345][ T383] !!!! css_release enqueue(ffff8881107f5400) [ 42.391597][ T383] !!!! css_killed_work_fn css_put(ffff8881107e8c00) [ 42.398411][ T383] !!!! css_release enqueue(ffff8881107e8c00) [ 42.404484][ T437] !!!! css_killed_work_fn css_put(ffff8881107e8800) [ 42.411264][ T437] !!!! css_release enqueue(ffff8881107e8800) [ 42.417536][ T419] !!!! put_css_set_locked css_put(ffff88811f2a8800) [ 42.424401][ T419] !!!! put_css_set_locked css_put(ffff88811f296a00) [ 42.431058][ T419] !!!! put_css_set_locked css_put(ffff88811f2d1c00) [ 42.437715][ T419] !!!! put_css_set_locked css_put(ffffffff86918540) [ 42.444359][ T419] !!!! put_css_set_locked css_put(ffff88810578c000) [ 42.451007][ T419] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 42.457764][ T419] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 42.464427][ T419] !!!! put_css_set_locked css_put(ffff888100127800) [ 42.471077][ T419] !!!! put_css_set_locked cgroup_put(self ffff88810578e000) [ 42.478427][ T419] !!!! put_css_set_locked cgroup_put(self ffff888105788000) [ 42.486622][ T419] !!!! cgroup_kn_unlock css_put(ffff888101fcc000) [ 42.493488][ T414] !!!! put_css_set_locked css_put(ffff8881105c6400) [ 42.500240][ T414] !!!! put_css_set_locked css_put(ffff88810f5a0e00) [ 42.506897][ T414] !!!! put_css_set_locked css_put(ffff88810f851000) [ 42.514534][ T414] !!!! put_css_set_locked css_put(ffffffff86918540) [ 42.521193][ T414] !!!! put_css_set_locked css_put(ffff8881105f2000) [ 42.527955][ T414] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 42.534626][ T414] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 42.541293][ T414] !!!! put_css_set_locked css_put(ffff888100127800) [ 42.547945][ T414] !!!! put_css_set_locked cgroup_put(self ffff8881105f6000) [ 42.555309][ T414] !!!! put_css_set_locked cgroup_put(self ffff8881105f0000) [ 42.567558][ T414] !!!! cgroup_kn_unlock css_put(ffff888110732000) [ 42.570565][ T454] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.575302][ T418] !!!! cgroup_kn_unlock css_put(ffff88811057c000) [ 42.580949][ T454] !!!! css_create css ffff88810ec1d000 !!!! [ 42.596705][ T454] !!!! css_create css ffff8881217dc000 !!!! [ 42.602745][ T454] !!!! css_create css ffff888110e37400 !!!! [ 42.608822][ T454] FAULT_INJECTION: forcing a failure. [ 42.608822][ T454] name failslab, interval 1, probability 0, space 0, times 0 [ 42.621693][ T454] CPU: 0 PID: 454 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 42.631930][ T454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.641973][ T454] Call Trace: [ 42.645313][ T454] dump_stack_lvl+0x1e2/0x24b [ 42.650123][ T454] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.655607][ T454] ? find_next_bit+0xd6/0x120 [ 42.660267][ T454] ? cpumask_next+0x11/0x30 [ 42.664801][ T454] dump_stack+0x15/0x17 [ 42.668936][ T454] should_fail+0x3c0/0x510 [ 42.673331][ T454] ? percpu_ref_init+0xd0/0x330 [ 42.678162][ T454] __should_failslab+0x9f/0xe0 [ 42.682900][ T454] should_failslab+0x9/0x20 [ 42.687384][ T454] kmem_cache_alloc_trace+0x3a/0x330 [ 42.692647][ T454] percpu_ref_init+0xd0/0x330 [ 42.697650][ T454] ? cgroup_setup_root+0xea0/0xea0 [ 42.702827][ T454] cgroup_apply_control_enable+0x734/0x12e0 [ 42.709133][ T454] cgroup_apply_control+0x93/0x710 [ 42.714226][ T454] ? css_next_child+0x160/0x160 [ 42.719069][ T454] ? io_schedule+0x120/0x120 [ 42.723634][ T454] ? kernfs_fop_write_iter+0x15e/0x410 [ 42.729071][ T454] ? __kasan_check_write+0x14/0x20 [ 42.734159][ T454] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 42.739428][ T454] cgroup_subtree_control_write+0xd19/0x1310 [ 42.745391][ T454] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.751357][ T454] ? __kasan_check_write+0x14/0x20 [ 42.756444][ T454] ? _copy_from_iter+0x3fb/0xd60 [ 42.761359][ T454] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 42.767316][ T454] cgroup_file_write+0x28e/0x590 [ 42.772317][ T454] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.777414][ T454] ? mutex_lock+0xa6/0x110 [ 42.781811][ T454] ? mutex_trylock+0xb0/0xb0 [ 42.786378][ T454] ? __kasan_check_write+0x14/0x20 [ 42.791463][ T454] kernfs_fop_write_iter+0x2d0/0x410 [ 42.796806][ T454] ? cgroup_seqfile_stop+0xc0/0xc0 [ 42.801904][ T454] vfs_write+0xc1c/0xf40 [ 42.806123][ T454] ? kernel_write+0x3c0/0x3c0 [ 42.810782][ T454] ? mutex_trylock+0xb0/0xb0 [ 42.815355][ T454] ? __fdget_pos+0x26d/0x310 [ 42.819932][ T454] ? ksys_write+0x77/0x2c0 [ 42.824322][ T454] ksys_write+0x198/0x2c0 [ 42.828636][ T454] ? __ia32_sys_read+0x90/0x90 [ 42.833383][ T454] ? debug_smp_processor_id+0x17/0x20 [ 42.838826][ T454] __x64_sys_write+0x7b/0x90 [ 42.843412][ T454] do_syscall_64+0x34/0x70 [ 42.847819][ T454] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.853704][ T454] RIP: 0033:0x7f1d047a10e9 [ 42.858111][ T454] 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 [ 42.877954][ T454] RSP: 002b:00007f1d04717168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.886351][ T454] RAX: ffffffffffffffda RBX: 00007f1d048b3f60 RCX: 00007f1d047a10e9 [ 42.894312][ T454] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 42.902266][ T454] RBP: 00007f1d047171d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.910242][ T454] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.918193][ T454] R13: 00007fffe63542cf R14: 00007f1d04717300 R15: 0000000000022000 [ 42.929178][ T454] !!!! css_create rcu_enqueue(ffff888110e37400) !!!! [ 42.936091][ T454] !!!! control_disable kill_css(ffff88810ec1d000) [ 42.942710][ T454] !!!! control_disable kill_css(ffff8881217dc000) [ 42.949519][ T416] !!!! css_create css ffff88811f297400 !!!! [ 42.955524][ T454] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.962364][ T416] !!!! css_create css ffff888110942000 !!!! [ 42.968639][ T416] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 42.975905][ T408] !!!! cgroup_kn_unlock css_put(ffff88811092c000) [ 42.983565][ T418] !!!! css_create css ffff888110f28400 !!!! [ 42.989804][ C0] !!!! css_killed_ref_fn enqueue(ffff88810ec1d000) [ 42.989823][ C0] !!!! css_killed_ref_fn enqueue(ffff8881217dc000) [ 43.004171][ T418] !!!! css_create css ffff88810fea3c00 !!!! [ 43.010507][ T418] !!!! cgroup_kn_unlock css_put(ffff88811dcc4010) [ 43.017166][ T437] !!!! css_killed_work_fn css_put(ffff88810ec1d000) [ 43.023838][ T437] !!!! css_release enqueue(ffff88810ec1d000) [ 43.031336][ T416] !!!! cgroup_kn_unlock css_put(ffff888110940000) [ 43.031407][ T418] !!!! put_css_set_locked css_put(ffffffff85fb68e0) [ 43.044484][ T418] !!!! put_css_set_locked css_put(ffff88811f297000) [ 43.051156][ T418] !!!! put_css_set_locked css_put(ffffffff85ef4300) [ 43.057887][ T418] !!!! put_css_set_locked css_put(ffffffff86918540) [ 43.064535][ T418] !!!! put_css_set_locked css_put(ffff888110578000) [ 43.071220][ T418] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 43.077884][ T418] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 43.084526][ T418] !!!! put_css_set_locked css_put(ffff888100127800) [ 43.091625][ T418] !!!! put_css_set_locked cgroup_put(self ffff88811057c000) [ 43.100485][ T418] !!!! cgroup_kn_unlock css_put(ffff888110e4e000) [ 43.100695][ T408] !!!! css_create css ffff888110d4f000 !!!! [ 43.114285][ T408] !!!! css_create css ffff88810fea3200 !!!! [ 43.120632][ T5] !!!! css_killed_work_fn css_put(ffff8881217dc000) [ 43.127491][ T408] !!!! cgroup_kn_unlock css_put(ffff88811dcc4010) [ 43.134089][ T5] !!!! css_release enqueue(ffff8881217dc000) [ 43.140597][ T418] !!!! css_create css ffff8881217e6400 !!!! [ 43.146949][ T418] !!!! css_create css ffff88810fea3e00 !!!! [ 43.153124][ T418] !!!! css_create css ffff88810fea3400 !!!! [ 43.159220][ T418] !!!! cgroup_kn_unlock css_put(ffff88811dc80010) [ 43.159265][ T462] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.166227][ T418] !!!! put_css_set_locked css_put(ffff888110f28400) [ 43.178961][ T418] !!!! put_css_set_locked css_put(ffff88811f297000) [ 43.185691][ T418] !!!! put_css_set_locked css_put(ffff88810fea3c00) [ 43.192345][ T418] !!!! put_css_set_locked css_put(ffffffff86918540) [ 43.198988][ T418] !!!! put_css_set_locked css_put(ffff888110578000) [ 43.205634][ T418] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 43.212287][ T418] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 43.218955][ T418] !!!! put_css_set_locked css_put(ffff888100127800) [ 43.225615][ T418] !!!! put_css_set_locked cgroup_put(self ffff88811057c000) [ 43.232991][ T418] !!!! put_css_set_locked cgroup_put(self ffff888110e4e000) [ 43.241525][ T418] !!!! cgroup_kn_unlock css_put(ffff888110e4a000) [ 43.241757][ T416] !!!! css_create css ffff888110d31c00 !!!! [ 43.256047][ T416] !!!! css_create css ffff88810f8cb800 !!!! [ 43.262191][ T416] !!!! cgroup_kn_unlock css_put(ffff88811dcc4010) [ 43.262217][ T463] !!!! css_create css ffff888110d32400 !!!! [ 43.274713][ T463] !!!! css_create css ffff888110d31000 !!!! [ 43.280770][ T463] !!!! css_create css ffff888110d30c00 !!!! [ 43.286690][ T463] FAULT_INJECTION: forcing a failure. [ 43.286690][ T463] name failslab, interval 1, probability 0, space 0, times 0 [ 43.299743][ T463] CPU: 1 PID: 463 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 43.309887][ T463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.319923][ T463] Call Trace: [ 43.323212][ T463] dump_stack_lvl+0x1e2/0x24b [ 43.327989][ T463] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.333443][ T463] dump_stack+0x15/0x17 [ 43.337762][ T463] should_fail+0x3c0/0x510 [ 43.342168][ T463] ? __kernfs_new_node+0x99/0x6e0 [ 43.347233][ T463] __should_failslab+0x9f/0xe0 [ 43.352085][ T463] should_failslab+0x9/0x20 [ 43.356663][ T463] __kmalloc_track_caller+0x5f/0x350 [ 43.361929][ T463] kstrdup_const+0x55/0x90 [ 43.366341][ T463] __kernfs_new_node+0x99/0x6e0 [ 43.371173][ T463] ? stack_trace_save+0x1f0/0x1f0 [ 43.376225][ T463] ? kernfs_new_node+0x170/0x170 [ 43.381141][ T463] ? ptr_to_hashval+0x60/0x60 [ 43.385800][ T463] ? snprintf+0xd6/0x120 [ 43.390193][ T463] kernfs_new_node+0x97/0x170 [ 43.394883][ T463] __kernfs_create_file+0x4a/0x270 [ 43.399994][ T463] cgroup_addrm_files+0xab8/0xfe0 [ 43.405008][ T463] ? cgroup_apply_control_enable+0x734/0x12e0 [ 43.411077][ T463] ? cgroup_apply_control+0x93/0x710 [ 43.416444][ T463] ? cgroup_subtree_control_write+0xd19/0x1310 [ 43.422702][ T463] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 43.428840][ T463] ? delete_node+0x759/0x7b0 [ 43.433523][ T463] ? __kasan_check_read+0x11/0x20 [ 43.438532][ T463] ? delete_node+0x759/0x7b0 [ 43.443130][ T463] ? __kasan_check_write+0x14/0x20 [ 43.448257][ T463] ? __radix_tree_replace+0x246/0x2e0 [ 43.453714][ T463] ? idr_get_next+0x4b0/0x4b0 [ 43.458378][ T463] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 43.463478][ T463] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 43.468657][ T463] css_populate_dir+0x137/0x370 [ 43.473512][ T463] cgroup_apply_control_enable+0x629/0x12e0 [ 43.479413][ T463] cgroup_apply_control+0x93/0x710 [ 43.484638][ T463] ? css_next_child+0x160/0x160 [ 43.489648][ T463] ? set_next_entity+0xc5/0x390 [ 43.494672][ T463] ? io_schedule+0x120/0x120 [ 43.499264][ T463] ? kernfs_fop_write_iter+0x15e/0x410 [ 43.504719][ T463] ? __kasan_check_write+0x14/0x20 [ 43.509827][ T463] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 43.515099][ T463] cgroup_subtree_control_write+0xd19/0x1310 [ 43.521060][ T463] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.527021][ T463] ? __kasan_check_write+0x14/0x20 [ 43.532131][ T463] ? _copy_from_iter+0x3fb/0xd60 [ 43.537048][ T463] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 43.543007][ T463] cgroup_file_write+0x28e/0x590 [ 43.548025][ T463] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.553158][ T463] ? mutex_lock+0xa6/0x110 [ 43.557601][ T463] ? mutex_trylock+0xb0/0xb0 [ 43.562179][ T463] ? __kasan_check_write+0x14/0x20 [ 43.567272][ T463] kernfs_fop_write_iter+0x2d0/0x410 [ 43.572582][ T463] ? cgroup_seqfile_stop+0xc0/0xc0 [ 43.577680][ T463] vfs_write+0xc1c/0xf40 [ 43.581911][ T463] ? kernel_write+0x3c0/0x3c0 [ 43.586574][ T463] ? mutex_trylock+0xb0/0xb0 [ 43.591141][ T463] ? __fdget_pos+0x26d/0x310 [ 43.595761][ T463] ? ksys_write+0x77/0x2c0 [ 43.600328][ T463] ksys_write+0x198/0x2c0 [ 43.604657][ T463] ? __ia32_sys_read+0x90/0x90 [ 43.609485][ T463] ? debug_smp_processor_id+0x17/0x20 [ 43.614834][ T463] __x64_sys_write+0x7b/0x90 [ 43.619411][ T463] do_syscall_64+0x34/0x70 [ 43.623814][ T463] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.629689][ T463] RIP: 0033:0x7f1d047a10e9 [ 43.634086][ T463] 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 [ 43.653761][ T463] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 43.662177][ T463] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 43.670129][ T463] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 43.678089][ T463] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.686053][ T463] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.694107][ T463] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 43.706874][ T463] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 43.714017][ T463] !!!! control_disable kill_css(ffff888110d32400) [ 43.720702][ T463] !!!! control_disable kill_css(ffff888110d31000) [ 43.727427][ T463] !!!! control_disable kill_css(ffff888110d30c00) [ 43.734196][ T408] !!!! put_css_set_locked css_put(ffffffff85fb68e0) [ 43.735526][ T463] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 43.740866][ T408] !!!! put_css_set_locked css_put(ffff88810f5a0200) [ 43.740871][ T408] !!!! put_css_set_locked css_put(ffffffff85ef4300) [ 43.740874][ T408] !!!! put_css_set_locked css_put(ffffffff86918540) [ 43.740879][ T408] !!!! put_css_set_locked css_put(ffff888110944000) [ 43.740883][ T408] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 43.740887][ T408] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 43.740891][ T408] !!!! put_css_set_locked css_put(ffff888100127800) [ 43.740905][ T408] !!!! put_css_set_locked cgroup_put(self ffff88811092c000) [ 43.802847][ T408] !!!! cgroup_kn_unlock css_put(ffff888110d18000) [ 43.804015][ C1] !!!! css_killed_ref_fn enqueue(ffff888110d32400) [ 43.809588][ T416] !!!! put_css_set_locked css_put(ffffffff85fb68e0) [ 43.822702][ T416] !!!! put_css_set_locked css_put(ffff88811f297400) [ 43.829348][ T416] !!!! put_css_set_locked css_put(ffffffff85ef4300) [ 43.836078][ T416] !!!! put_css_set_locked css_put(ffffffff86918540) [ 43.842723][ T416] !!!! put_css_set_locked css_put(ffff888110942000) [ 43.850981][ T416] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 43.857628][ T416] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 43.864275][ T416] !!!! put_css_set_locked css_put(ffff888100127800) 2022/06/06 21:51:34 executed programs: 14 [ 43.870923][ T416] !!!! put_css_set_locked cgroup_put(self ffff888110940000) [ 43.879757][ T384] !!!! css_killed_work_fn css_put(ffff888110d32400) [ 43.885383][ T416] !!!! cgroup_kn_unlock css_put(ffff88811114a000) [ 43.886501][ C1] !!!! css_killed_ref_fn enqueue(ffff888110d31000) [ 43.899581][ C1] !!!! css_killed_ref_fn enqueue(ffff888110d30c00) [ 43.906292][ T384] !!!! css_release enqueue(ffff888110d32400) [ 43.912433][ T408] !!!! css_create css ffff888110757800 !!!! [ 43.918546][ T408] !!!! css_create css ffff888110d8ce00 !!!! [ 43.924444][ T408] !!!! css_create css ffff888110d8c200 !!!! [ 43.930397][ T384] !!!! css_killed_work_fn css_put(ffff888110d31000) [ 43.935565][ T408] !!!! cgroup_kn_unlock css_put(ffff88811dc80010) [ 43.937452][ T384] !!!! css_release enqueue(ffff888110d31000) [ 43.949928][ T384] !!!! css_killed_work_fn css_put(ffff888110d30c00) [ 43.957138][ T384] !!!! css_release enqueue(ffff888110d30c00) [ 43.963341][ T416] !!!! css_create css ffff888111496000 !!!! [ 43.969298][ T416] !!!! css_create css ffff88810f8cb200 !!!! [ 43.975222][ T416] !!!! css_create css ffff88810f8cbc00 !!!! [ 43.981160][ T416] !!!! cgroup_kn_unlock css_put(ffff88811dc80010) [ 43.987842][ T408] !!!! put_css_set_locked css_put(ffff888110d4f000) [ 43.994510][ T408] !!!! put_css_set_locked css_put(ffff88810f5a0200) [ 44.001776][ T408] !!!! put_css_set_locked css_put(ffff88810fea3200) [ 44.008437][ T408] !!!! put_css_set_locked css_put(ffffffff86918540) [ 44.015097][ T408] !!!! put_css_set_locked css_put(ffff888110944000) [ 44.021762][ T408] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 44.028413][ T408] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 44.035059][ T408] !!!! put_css_set_locked css_put(ffff888100127800) [ 44.041708][ T408] !!!! put_css_set_locked cgroup_put(self ffff88811092c000) [ 44.049069][ T408] !!!! put_css_set_locked cgroup_put(self ffff888110d18000) [ 44.056841][ T408] !!!! cgroup_kn_unlock css_put(ffff88811114c000) [ 44.057007][ T416] !!!! put_css_set_locked css_put(ffff888110d31c00) [ 44.069995][ T416] !!!! put_css_set_locked css_put(ffff88811f297400) [ 44.076831][ T416] !!!! put_css_set_locked css_put(ffff88810f8cb800) [ 44.083666][ T416] !!!! put_css_set_locked css_put(ffffffff86918540) [ 44.090398][ T416] !!!! put_css_set_locked css_put(ffff888110942000) [ 44.097095][ T416] !!!! put_css_set_locked css_put(ffff8881001c7400) [ 44.103864][ T416] !!!! put_css_set_locked css_put(ffff8881001c7e00) [ 44.110526][ T416] !!!! put_css_set_locked css_put(ffff888100127800) [ 44.117260][ T416] !!!! put_css_set_locked cgroup_put(self ffff888110940000) [ 44.124613][ T416] !!!! put_css_set_locked cgroup_put(self ffff88811114a000) [ 44.132092][ T416] !!!! cgroup_kn_unlock css_put(ffff888111486000) [ 44.134516][ T468] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.145733][ T468] !!!! css_create css ffff8881113ec800 !!!! [ 44.151707][ T468] !!!! css_create css ffff8881113edc00 !!!! [ 44.158787][ T468] !!!! css_create css ffff8881113ee000 !!!! [ 44.164790][ T468] FAULT_INJECTION: forcing a failure. [ 44.164790][ T468] name failslab, interval 1, probability 0, space 0, times 0 [ 44.177908][ T468] CPU: 0 PID: 468 Comm: syz-executor.2 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 44.188325][ T468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.198372][ T468] Call Trace: [ 44.201645][ T468] dump_stack_lvl+0x1e2/0x24b [ 44.206296][ T468] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.211725][ T468] dump_stack+0x15/0x17 [ 44.215867][ T468] should_fail+0x3c0/0x510 [ 44.220263][ T468] ? __kernfs_new_node+0x99/0x6e0 [ 44.225268][ T468] __should_failslab+0x9f/0xe0 [ 44.230022][ T468] should_failslab+0x9/0x20 [ 44.234539][ T468] __kmalloc_track_caller+0x5f/0x350 [ 44.239806][ T468] kstrdup_const+0x55/0x90 [ 44.244217][ T468] __kernfs_new_node+0x99/0x6e0 [ 44.249053][ T468] ? stack_trace_save+0x1f0/0x1f0 [ 44.254079][ T468] ? kernfs_new_node+0x170/0x170 [ 44.259006][ T468] ? ptr_to_hashval+0x60/0x60 [ 44.263680][ T468] ? snprintf+0xd6/0x120 [ 44.267911][ T468] kernfs_new_node+0x97/0x170 [ 44.272567][ T468] __kernfs_create_file+0x4a/0x270 [ 44.277678][ T468] cgroup_addrm_files+0xab8/0xfe0 [ 44.282679][ T468] ? cgroup_apply_control_enable+0x734/0x12e0 [ 44.288893][ T468] ? cgroup_apply_control+0x93/0x710 [ 44.294185][ T468] ? cgroup_subtree_control_write+0xd19/0x1310 [ 44.300322][ T468] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 44.306452][ T468] ? delete_node+0x759/0x7b0 [ 44.311279][ T468] ? __kasan_check_read+0x11/0x20 [ 44.316295][ T468] ? delete_node+0x759/0x7b0 [ 44.320861][ T468] ? __kasan_check_write+0x14/0x20 [ 44.325955][ T468] ? __radix_tree_replace+0x246/0x2e0 [ 44.331399][ T468] ? idr_get_next+0x4b0/0x4b0 [ 44.336049][ T468] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 44.341046][ T468] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 44.346325][ T468] css_populate_dir+0x137/0x370 [ 44.351237][ T468] cgroup_apply_control_enable+0x629/0x12e0 [ 44.357194][ T468] cgroup_apply_control+0x93/0x710 [ 44.362459][ T468] ? css_next_child+0x160/0x160 [ 44.367377][ T468] ? io_schedule+0x120/0x120 [ 44.371948][ T468] ? kernfs_fop_write_iter+0x15e/0x410 [ 44.377394][ T468] ? __kasan_check_write+0x14/0x20 [ 44.382495][ T468] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 44.387859][ T468] cgroup_subtree_control_write+0xd19/0x1310 [ 44.393824][ T468] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.399884][ T468] ? __kasan_check_write+0x14/0x20 [ 44.404968][ T468] ? _copy_from_iter+0x3fb/0xd60 [ 44.409966][ T468] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 44.415918][ T468] cgroup_file_write+0x28e/0x590 [ 44.420832][ T468] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.425936][ T468] ? mutex_lock+0xa6/0x110 [ 44.430323][ T468] ? mutex_trylock+0xb0/0xb0 [ 44.434892][ T468] ? __kasan_check_write+0x14/0x20 [ 44.439981][ T468] kernfs_fop_write_iter+0x2d0/0x410 [ 44.445238][ T468] ? cgroup_seqfile_stop+0xc0/0xc0 [ 44.450319][ T468] vfs_write+0xc1c/0xf40 [ 44.454535][ T468] ? kernel_write+0x3c0/0x3c0 [ 44.459183][ T468] ? mutex_trylock+0xb0/0xb0 [ 44.463754][ T468] ? __fdget_pos+0x26d/0x310 [ 44.468404][ T468] ? ksys_write+0x77/0x2c0 [ 44.472801][ T468] ksys_write+0x198/0x2c0 [ 44.477113][ T468] ? __ia32_sys_read+0x90/0x90 [ 44.481852][ T468] ? debug_smp_processor_id+0x17/0x20 [ 44.487203][ T468] __x64_sys_write+0x7b/0x90 [ 44.491877][ T468] do_syscall_64+0x34/0x70 [ 44.496276][ T468] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.502188][ T468] RIP: 0033:0x7f05b76700e9 [ 44.506695][ T468] 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 [ 44.526280][ T468] RSP: 002b:00007f05b75e6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 44.534684][ T468] RAX: ffffffffffffffda RBX: 00007f05b7782f60 RCX: 00007f05b76700e9 [ 44.542631][ T468] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 44.550757][ T468] RBP: 00007f05b75e61d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.558918][ T468] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.567225][ T468] R13: 00007fff27b047ef R14: 00007f05b75e6300 R15: 0000000000022000 [ 44.577530][ T468] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 44.578679][ T23] audit: type=1400 audit(1654552294.919:158): avc: denied { remove_name } for pid=143 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 44.584725][ T468] !!!! control_disable kill_css(ffff8881113ec800) [ 44.607681][ T23] audit: type=1400 audit(1654552294.919:159): avc: denied { rename } for pid=143 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 44.614175][ T468] !!!! control_disable kill_css(ffff8881113edc00) [ 44.636292][ T23] audit: type=1400 audit(1654552294.919:160): avc: denied { create } for pid=143 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 44.642760][ T468] !!!! control_disable kill_css(ffff8881113ee000) [ 44.670134][ T468] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.695513][ C0] !!!! css_killed_ref_fn enqueue(ffff8881113ec800) [ 44.702115][ C0] !!!! css_killed_ref_fn enqueue(ffff8881113edc00) [ 44.709103][ T5] !!!! css_killed_work_fn css_put(ffff8881113ec800) [ 44.715914][ C0] !!!! css_killed_ref_fn enqueue(ffff8881113ee000) [ 44.723968][ T5] !!!! css_release enqueue(ffff8881113ec800) [ 44.730308][ T5] !!!! css_killed_work_fn css_put(ffff8881113edc00) [ 44.737145][ T5] !!!! css_release enqueue(ffff8881113edc00) [ 44.744468][ T5] !!!! css_killed_work_fn css_put(ffff8881113ee000) [ 44.751456][ T5] !!!! css_release enqueue(ffff8881113ee000) [ 44.757731][ T483] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.764247][ T480] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 44.765777][ T483] !!!! css_create css ffff8881114b7400 !!!! [ 44.776702][ T483] !!!! css_create css ffff8881114b5800 !!!! [ 44.782847][ T483] !!!! css_create css ffff8881114b6800 !!!! [ 44.788818][ T483] FAULT_INJECTION: forcing a failure. [ 44.788818][ T483] name failslab, interval 1, probability 0, space 0, times 0 [ 44.801456][ T483] CPU: 1 PID: 483 Comm: syz-executor.2 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 44.812116][ T483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.822168][ T483] Call Trace: [ 44.825444][ T483] dump_stack_lvl+0x1e2/0x24b [ 44.830126][ T483] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.835586][ T483] dump_stack+0x15/0x17 [ 44.839749][ T483] should_fail+0x3c0/0x510 [ 44.844246][ T483] ? __kernfs_new_node+0x99/0x6e0 [ 44.849260][ T483] __should_failslab+0x9f/0xe0 [ 44.854467][ T483] should_failslab+0x9/0x20 [ 44.859167][ T483] __kmalloc_track_caller+0x5f/0x350 [ 44.864445][ T483] kstrdup_const+0x55/0x90 [ 44.868882][ T483] __kernfs_new_node+0x99/0x6e0 [ 44.873724][ T483] ? stack_trace_save+0x1f0/0x1f0 [ 44.878728][ T483] ? kernfs_new_node+0x170/0x170 [ 44.883652][ T483] ? ptr_to_hashval+0x60/0x60 [ 44.888323][ T483] ? snprintf+0xd6/0x120 [ 44.892563][ T483] kernfs_new_node+0x97/0x170 [ 44.897224][ T483] __kernfs_create_file+0x4a/0x270 [ 44.902491][ T483] cgroup_addrm_files+0xab8/0xfe0 [ 44.907513][ T483] ? cgroup_apply_control_enable+0x734/0x12e0 [ 44.913734][ T483] ? cgroup_apply_control+0x93/0x710 [ 44.919007][ T483] ? cgroup_subtree_control_write+0xd19/0x1310 [ 44.925152][ T483] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 44.931497][ T483] ? delete_node+0x759/0x7b0 [ 44.936165][ T483] ? __kasan_check_read+0x11/0x20 [ 44.941179][ T483] ? delete_node+0x759/0x7b0 [ 44.945762][ T483] ? __kasan_check_write+0x14/0x20 [ 44.950853][ T483] ? __radix_tree_replace+0x246/0x2e0 [ 44.956208][ T483] ? idr_get_next+0x4b0/0x4b0 [ 44.960874][ T483] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 44.965872][ T483] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 44.971116][ T483] css_populate_dir+0x137/0x370 [ 44.975963][ T483] cgroup_apply_control_enable+0x629/0x12e0 [ 44.981853][ T483] cgroup_apply_control+0x93/0x710 [ 44.986951][ T483] ? css_next_child+0x160/0x160 [ 44.991789][ T483] ? irqentry_exit+0x50/0x60 [ 44.996530][ T483] ? sysvec_apic_timer_interrupt+0xcb/0xe0 [ 45.002427][ T483] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 45.008581][ T483] cgroup_subtree_control_write+0xd19/0x1310 [ 45.014564][ T483] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.020524][ T483] ? __kasan_check_write+0x14/0x20 [ 45.025643][ T483] ? _copy_from_iter+0x3fb/0xd60 [ 45.030561][ T483] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.036524][ T483] cgroup_file_write+0x28e/0x590 [ 45.041450][ T483] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.046536][ T483] ? mutex_lock+0xa6/0x110 [ 45.051119][ T483] ? mutex_trylock+0xb0/0xb0 [ 45.055692][ T483] ? __kasan_check_write+0x14/0x20 [ 45.060788][ T483] kernfs_fop_write_iter+0x2d0/0x410 [ 45.066316][ T483] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.071425][ T483] vfs_write+0xc1c/0xf40 [ 45.075671][ T483] ? kernel_write+0x3c0/0x3c0 [ 45.080540][ T483] ? mutex_trylock+0xb0/0xb0 [ 45.085139][ T483] ? __fdget_pos+0x26d/0x310 [ 45.090255][ T483] ? ksys_write+0x77/0x2c0 [ 45.094670][ T483] ksys_write+0x198/0x2c0 [ 45.099021][ T483] ? __ia32_sys_read+0x90/0x90 [ 45.103787][ T483] ? debug_smp_processor_id+0x17/0x20 [ 45.109245][ T483] __x64_sys_write+0x7b/0x90 [ 45.113826][ T483] do_syscall_64+0x34/0x70 [ 45.118749][ T483] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.124703][ T483] RIP: 0033:0x7f05b76700e9 [ 45.129230][ T483] 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 [ 45.148812][ T483] RSP: 002b:00007f05b75e6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.157204][ T483] RAX: ffffffffffffffda RBX: 00007f05b7782f60 RCX: 00007f05b76700e9 [ 45.165153][ T483] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 45.173102][ T483] RBP: 00007f05b75e61d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.181058][ T483] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.189015][ T483] R13: 00007fff27b047ef R14: 00007f05b75e6300 R15: 0000000000022000 [ 45.197219][ T483] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 45.204393][ T483] !!!! control_disable kill_css(ffff8881114b7400) [ 45.210986][ T483] !!!! control_disable kill_css(ffff8881114b5800) [ 45.217602][ T483] !!!! control_disable kill_css(ffff8881114b6800) [ 45.224350][ T483] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.245499][ C1] !!!! css_killed_ref_fn enqueue(ffff8881114b7400) [ 45.252187][ T383] !!!! css_killed_work_fn css_put(ffff8881114b7400) [ 45.258930][ T383] !!!! css_release enqueue(ffff8881114b7400) [ 45.265493][ C1] !!!! css_killed_ref_fn enqueue(ffff8881114b5800) [ 45.272197][ C1] !!!! css_killed_ref_fn enqueue(ffff8881114b6800) [ 45.278982][ T383] !!!! css_killed_work_fn css_put(ffff8881114b5800) [ 45.285718][ T383] !!!! css_release enqueue(ffff8881114b5800) [ 45.292005][ T383] !!!! css_killed_work_fn css_put(ffff8881114b6800) [ 45.298929][ T383] !!!! css_release enqueue(ffff8881114b6800) [ 45.305032][ T485] !!!! css_create css ffff8881114b4000 !!!! [ 45.311046][ T485] !!!! css_create css ffff88811182ac00 !!!! [ 45.317190][ T485] !!!! css_create css ffff88811182b400 !!!! [ 45.323153][ T485] FAULT_INJECTION: forcing a failure. [ 45.323153][ T485] name failslab, interval 1, probability 0, space 0, times 0 [ 45.337201][ T485] CPU: 0 PID: 485 Comm: syz-executor.1 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 45.347432][ T485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.357481][ T485] Call Trace: [ 45.360833][ T485] dump_stack_lvl+0x1e2/0x24b [ 45.365482][ T485] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.370914][ T485] dump_stack+0x15/0x17 [ 45.375046][ T485] should_fail+0x3c0/0x510 [ 45.379434][ T485] ? __kernfs_new_node+0x99/0x6e0 [ 45.384463][ T485] __should_failslab+0x9f/0xe0 [ 45.389213][ T485] should_failslab+0x9/0x20 [ 45.393781][ T485] __kmalloc_track_caller+0x5f/0x350 [ 45.399039][ T485] kstrdup_const+0x55/0x90 [ 45.403561][ T485] __kernfs_new_node+0x99/0x6e0 [ 45.408509][ T485] ? stack_trace_save+0x1f0/0x1f0 [ 45.413538][ T485] ? kernfs_new_node+0x170/0x170 [ 45.418466][ T485] ? ptr_to_hashval+0x60/0x60 [ 45.423139][ T485] ? snprintf+0xd6/0x120 [ 45.427372][ T485] kernfs_new_node+0x97/0x170 [ 45.432084][ T485] __kernfs_create_file+0x4a/0x270 [ 45.437267][ T485] cgroup_addrm_files+0xab8/0xfe0 [ 45.442353][ T485] ? cgroup_apply_control_enable+0x734/0x12e0 [ 45.448396][ T485] ? cgroup_apply_control+0x93/0x710 [ 45.453652][ T485] ? cgroup_subtree_control_write+0xd19/0x1310 [ 45.459861][ T485] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 45.466035][ T485] ? delete_node+0x759/0x7b0 [ 45.470748][ T485] ? __kasan_check_read+0x11/0x20 [ 45.475754][ T485] ? delete_node+0x759/0x7b0 [ 45.482496][ T485] ? __kasan_check_write+0x14/0x20 [ 45.487596][ T485] ? __radix_tree_replace+0x246/0x2e0 [ 45.492947][ T485] ? idr_get_next+0x4b0/0x4b0 [ 45.497602][ T485] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 45.502600][ T485] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 45.507775][ T485] css_populate_dir+0x137/0x370 [ 45.512606][ T485] cgroup_apply_control_enable+0x629/0x12e0 [ 45.518472][ T485] cgroup_apply_control+0x93/0x710 [ 45.523569][ T485] ? css_next_child+0x160/0x160 [ 45.528407][ T485] ? set_next_entity+0xc5/0x390 [ 45.533244][ T485] ? io_schedule+0x120/0x120 [ 45.537819][ T485] ? kernfs_fop_write_iter+0x15e/0x410 [ 45.543267][ T485] ? __kasan_check_write+0x14/0x20 [ 45.548375][ T485] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 45.553639][ T485] cgroup_subtree_control_write+0xd19/0x1310 [ 45.559701][ T485] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.565669][ T485] ? __kasan_check_write+0x14/0x20 [ 45.570762][ T485] ? _copy_from_iter+0x3fb/0xd60 [ 45.575859][ T485] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 45.581811][ T485] cgroup_file_write+0x28e/0x590 [ 45.586737][ T485] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.591820][ T485] ? mutex_lock+0xa6/0x110 [ 45.596216][ T485] ? mutex_trylock+0xb0/0xb0 [ 45.600790][ T485] ? __kasan_check_write+0x14/0x20 [ 45.605873][ T485] kernfs_fop_write_iter+0x2d0/0x410 [ 45.611321][ T485] ? cgroup_seqfile_stop+0xc0/0xc0 [ 45.616412][ T485] vfs_write+0xc1c/0xf40 [ 45.620623][ T485] ? kernel_write+0x3c0/0x3c0 [ 45.625270][ T485] ? mutex_trylock+0xb0/0xb0 [ 45.629838][ T485] ? __fdget_pos+0x26d/0x310 [ 45.634410][ T485] ? ksys_write+0x77/0x2c0 [ 45.638803][ T485] ksys_write+0x198/0x2c0 [ 45.643113][ T485] ? __ia32_sys_read+0x90/0x90 [ 45.647949][ T485] ? debug_smp_processor_id+0x17/0x20 [ 45.653325][ T485] __x64_sys_write+0x7b/0x90 [ 45.657909][ T485] do_syscall_64+0x34/0x70 [ 45.662298][ T485] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.669030][ T485] RIP: 0033:0x7fee9f29f0e9 [ 45.673419][ T485] 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 [ 45.693094][ T485] RSP: 002b:00007fee9f1f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.701487][ T485] RAX: ffffffffffffffda RBX: 00007fee9f3b2030 RCX: 00007fee9f29f0e9 [ 45.709437][ T485] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 45.717378][ T485] RBP: 00007fee9f1f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.725321][ T485] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.733353][ T485] R13: 00007fff0617897f R14: 00007fee9f1f4300 R15: 0000000000022000 [ 45.744472][ T485] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 45.751642][ T485] !!!! control_disable kill_css(ffff8881114b4000) [ 45.758438][ T485] !!!! control_disable kill_css(ffff88811182ac00) [ 45.765029][ T485] !!!! control_disable kill_css(ffff88811182b400) [ 45.771674][ T485] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.779159][ C0] !!!! css_killed_ref_fn enqueue(ffff8881114b4000) [ 45.785873][ T437] !!!! css_killed_work_fn css_put(ffff8881114b4000) [ 45.792707][ C0] !!!! css_killed_ref_fn enqueue(ffff88811182ac00) [ 45.799414][ C0] !!!! css_killed_ref_fn enqueue(ffff88811182b400) [ 45.806204][ T437] !!!! css_release enqueue(ffff8881114b4000) [ 45.820636][ T125] !!!! css_killed_work_fn css_put(ffff88811182ac00) [ 45.827508][ T125] !!!! css_release enqueue(ffff88811182ac00) [ 45.833731][ T437] !!!! css_killed_work_fn css_put(ffff88811182b400) [ 45.840682][ T437] !!!! css_release enqueue(ffff88811182b400) [ 45.847144][ T475] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.847181][ T493] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.853764][ T481] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.861768][ T495] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.867977][ T474] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 45.868096][ T484] !!!! css_create css ffff888111a5f400 !!!! [ 45.868152][ T484] !!!! css_create css ffff888111a5ec00 !!!! [ 45.868190][ T484] !!!! css_create css ffff888111a5f800 !!!! [ 45.868215][ T484] FAULT_INJECTION: forcing a failure. [ 45.868215][ T484] name failslab, interval 1, probability 0, space 0, times 0 [ 45.911869][ T484] CPU: 1 PID: 484 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 45.922031][ T484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.932156][ T484] Call Trace: [ 45.935430][ T484] dump_stack_lvl+0x1e2/0x24b [ 45.940115][ T484] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.945555][ T484] ? prb_reserve+0x1125/0x1430 [ 45.950314][ T484] dump_stack+0x15/0x17 [ 45.954454][ T484] should_fail+0x3c0/0x510 [ 45.958858][ T484] ? __kernfs_new_node+0x99/0x6e0 [ 45.963861][ T484] __should_failslab+0x9f/0xe0 [ 45.968607][ T484] should_failslab+0x9/0x20 [ 45.973106][ T484] __kmalloc_track_caller+0x5f/0x350 [ 45.978404][ T484] kstrdup_const+0x55/0x90 [ 45.982898][ T484] __kernfs_new_node+0x99/0x6e0 [ 45.987733][ T484] ? stack_trace_save+0x1f0/0x1f0 [ 45.992762][ T484] ? kernfs_new_node+0x170/0x170 [ 45.997679][ T484] ? ptr_to_hashval+0x60/0x60 [ 46.002350][ T484] ? snprintf+0xd6/0x120 [ 46.006580][ T484] kernfs_new_node+0x97/0x170 [ 46.011287][ T484] __kernfs_create_file+0x4a/0x270 [ 46.016391][ T484] cgroup_addrm_files+0xab8/0xfe0 [ 46.021395][ T484] ? cgroup_apply_control_enable+0x734/0x12e0 [ 46.027459][ T484] ? cgroup_apply_control+0x93/0x710 [ 46.032739][ T484] ? cgroup_subtree_control_write+0xd19/0x1310 [ 46.038978][ T484] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 46.045200][ T484] ? delete_node+0x759/0x7b0 [ 46.049795][ T484] ? __kasan_check_read+0x11/0x20 [ 46.054800][ T484] ? delete_node+0x759/0x7b0 [ 46.059368][ T484] ? __kasan_check_write+0x14/0x20 [ 46.064459][ T484] ? __radix_tree_replace+0x246/0x2e0 [ 46.069818][ T484] ? idr_get_next+0x4b0/0x4b0 [ 46.074510][ T484] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 46.079510][ T484] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 46.084709][ T484] css_populate_dir+0x137/0x370 [ 46.089569][ T484] cgroup_apply_control_enable+0x629/0x12e0 [ 46.095448][ T484] cgroup_apply_control+0x93/0x710 [ 46.100543][ T484] ? css_next_child+0x160/0x160 [ 46.105490][ T484] ? io_schedule+0x120/0x120 [ 46.110068][ T484] ? kernfs_fop_write_iter+0x15e/0x410 [ 46.115518][ T484] ? __kasan_check_write+0x14/0x20 [ 46.120628][ T484] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 46.126003][ T484] cgroup_subtree_control_write+0xd19/0x1310 [ 46.131965][ T484] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.137950][ T484] ? __kasan_check_write+0x14/0x20 [ 46.143126][ T484] ? _copy_from_iter+0x3fb/0xd60 [ 46.148041][ T484] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.154088][ T484] cgroup_file_write+0x28e/0x590 [ 46.159021][ T484] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.164117][ T484] ? mutex_lock+0xa6/0x110 [ 46.168513][ T484] ? mutex_trylock+0xb0/0xb0 [ 46.173085][ T484] ? __kasan_check_write+0x14/0x20 [ 46.178174][ T484] kernfs_fop_write_iter+0x2d0/0x410 [ 46.183442][ T484] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.188531][ T484] vfs_write+0xc1c/0xf40 [ 46.192753][ T484] ? ktime_get+0x127/0x150 [ 46.197150][ T484] ? kernel_write+0x3c0/0x3c0 [ 46.201832][ T484] ? mutex_trylock+0xb0/0xb0 [ 46.206430][ T484] ? __fdget_pos+0x26d/0x310 [ 46.211002][ T484] ? ksys_write+0x77/0x2c0 [ 46.215393][ T484] ksys_write+0x198/0x2c0 [ 46.219698][ T484] ? kvm_sched_clock_read+0x18/0x40 [ 46.224897][ T484] ? sched_clock+0x3a/0x40 [ 46.229400][ T484] ? __ia32_sys_read+0x90/0x90 [ 46.234163][ T484] ? debug_smp_processor_id+0x17/0x20 [ 46.239528][ T484] __x64_sys_write+0x7b/0x90 [ 46.244124][ T484] do_syscall_64+0x34/0x70 [ 46.248526][ T484] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.254402][ T484] RIP: 0033:0x7f1d047a10e9 [ 46.258803][ 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 [ 46.278506][ T484] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.286904][ T484] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 46.294881][ T484] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 46.302843][ T484] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.310834][ T484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.318801][ T484] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 46.327815][ T484] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 46.334855][ T484] !!!! control_disable kill_css(ffff888111a5f400) [ 46.341417][ T484] !!!! control_disable kill_css(ffff888111a5ec00) [ 46.348342][ T484] !!!! control_disable kill_css(ffff888111a5f800) [ 46.354948][ T484] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 46.395531][ C1] !!!! css_killed_ref_fn enqueue(ffff888111a5f400) [ 46.402211][ C1] !!!! css_killed_ref_fn enqueue(ffff888111a5ec00) [ 46.408832][ C1] !!!! css_killed_ref_fn enqueue(ffff888111a5f800) [ 46.415574][ T384] !!!! css_killed_work_fn css_put(ffff888111a5f400) [ 46.422240][ T384] !!!! css_release enqueue(ffff888111a5f400) [ 46.428688][ T384] !!!! css_killed_work_fn css_put(ffff888111a5ec00) [ 46.435736][ T384] !!!! css_release enqueue(ffff888111a5ec00) [ 46.441951][ T384] !!!! css_killed_work_fn css_put(ffff888111a5f800) [ 46.448763][ T384] !!!! css_release enqueue(ffff888111a5f800) [ 46.454906][ T493] !!!! css_create css ffff888112182800 !!!! [ 46.461060][ T493] !!!! css_create css ffff888112181400 !!!! [ 46.467183][ T493] !!!! css_create css ffff888112180c00 !!!! [ 46.473184][ T493] FAULT_INJECTION: forcing a failure. [ 46.473184][ T493] name failslab, interval 1, probability 0, space 0, times 0 [ 46.485913][ T493] CPU: 0 PID: 493 Comm: syz-executor.2 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 46.496044][ T493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.506078][ T493] Call Trace: [ 46.509366][ T493] dump_stack_lvl+0x1e2/0x24b [ 46.514023][ T493] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.519457][ T493] ? find_next_bit+0xd6/0x120 [ 46.524109][ T493] ? cpumask_next+0x11/0x30 [ 46.528593][ T493] dump_stack+0x15/0x17 [ 46.532738][ T493] should_fail+0x3c0/0x510 [ 46.537138][ T493] ? percpu_ref_init+0xd0/0x330 [ 46.541990][ T493] __should_failslab+0x9f/0xe0 [ 46.546737][ T493] should_failslab+0x9/0x20 [ 46.551238][ T493] kmem_cache_alloc_trace+0x3a/0x330 [ 46.556504][ T493] percpu_ref_init+0xd0/0x330 [ 46.561196][ T493] ? cgroup_setup_root+0xea0/0xea0 [ 46.566292][ T493] cgroup_apply_control_enable+0x734/0x12e0 [ 46.572160][ T493] cgroup_apply_control+0x93/0x710 [ 46.577246][ T493] ? css_next_child+0x160/0x160 [ 46.582085][ T493] ? io_schedule+0x120/0x120 [ 46.586652][ T493] ? kernfs_fop_write_iter+0x15e/0x410 [ 46.592086][ T493] ? __kasan_check_write+0x14/0x20 [ 46.597170][ T493] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 46.602435][ T493] cgroup_subtree_control_write+0xd19/0x1310 [ 46.608474][ T493] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.614447][ T493] ? __kasan_check_write+0x14/0x20 [ 46.619663][ T493] ? _copy_from_iter+0x3fb/0xd60 [ 46.624611][ T493] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 46.630659][ T493] cgroup_file_write+0x28e/0x590 [ 46.635666][ T493] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.640766][ T493] ? mutex_lock+0xa6/0x110 [ 46.645157][ T493] ? mutex_trylock+0xb0/0xb0 [ 46.649727][ T493] ? __kasan_check_write+0x14/0x20 [ 46.654814][ T493] kernfs_fop_write_iter+0x2d0/0x410 [ 46.660182][ T493] ? cgroup_seqfile_stop+0xc0/0xc0 [ 46.665289][ T493] vfs_write+0xc1c/0xf40 [ 46.669687][ T493] ? kernel_write+0x3c0/0x3c0 [ 46.674357][ T493] ? mutex_trylock+0xb0/0xb0 [ 46.679017][ T493] ? __fdget_pos+0x26d/0x310 [ 46.683581][ T493] ? ksys_write+0x77/0x2c0 [ 46.687980][ T493] ksys_write+0x198/0x2c0 [ 46.692393][ T493] ? __ia32_sys_read+0x90/0x90 [ 46.697131][ T493] ? debug_smp_processor_id+0x17/0x20 [ 46.702478][ T493] __x64_sys_write+0x7b/0x90 [ 46.707116][ T493] do_syscall_64+0x34/0x70 [ 46.711511][ T493] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.718602][ T493] RIP: 0033:0x7f05b76700e9 [ 46.723005][ 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 [ 46.742717][ T493] RSP: 002b:00007f05b75e6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.751112][ T493] RAX: ffffffffffffffda RBX: 00007f05b7782f60 RCX: 00007f05b76700e9 [ 46.759148][ T493] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 46.767093][ T493] RBP: 00007f05b75e61d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.775046][ T493] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.782999][ T493] R13: 00007fff27b047ef R14: 00007f05b75e6300 R15: 0000000000022000 [ 46.793058][ T493] !!!! css_create rcu_enqueue(ffff888112180c00) !!!! [ 46.799874][ T493] !!!! control_disable kill_css(ffff888112182800) [ 46.807018][ T493] !!!! control_disable kill_css(ffff888112181400) [ 46.813663][ T493] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 46.828615][ C0] !!!! css_killed_ref_fn enqueue(ffff888112182800) [ 46.835536][ C0] !!!! css_killed_ref_fn enqueue(ffff888112181400) [ 46.842436][ T125] !!!! css_killed_work_fn css_put(ffff888112182800) [ 46.849256][ T125] !!!! css_release enqueue(ffff888112182800) [ 46.856750][ T125] !!!! css_killed_work_fn css_put(ffff888112181400) [ 46.863412][ T125] !!!! css_release enqueue(ffff888112181400) [ 46.869717][ T501] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 46.869791][ T487] !!!! css_create css ffff888112122c00 !!!! [ 46.882195][ T487] !!!! css_create css ffff888112123400 !!!! [ 46.888137][ T487] !!!! css_create css ffff888112121800 !!!! [ 46.894043][ T487] FAULT_INJECTION: forcing a failure. [ 46.894043][ T487] name failslab, interval 1, probability 0, space 0, times 0 [ 46.906859][ T487] CPU: 1 PID: 487 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 46.916993][ T487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.927049][ T487] Call Trace: [ 46.930337][ T487] dump_stack_lvl+0x1e2/0x24b [ 46.935014][ T487] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.940464][ T487] ? serial8250_console_write+0xae0/0xe60 [ 46.946175][ T487] ? record_print_text+0x266/0x420 [ 46.951282][ T487] dump_stack+0x15/0x17 [ 46.955422][ T487] should_fail+0x3c0/0x510 [ 46.959813][ T487] ? __kernfs_new_node+0x99/0x6e0 [ 46.964811][ T487] __should_failslab+0x9f/0xe0 [ 46.969668][ T487] should_failslab+0x9/0x20 [ 46.974238][ T487] __kmalloc_track_caller+0x5f/0x350 [ 46.979506][ T487] kstrdup_const+0x55/0x90 [ 46.983905][ T487] __kernfs_new_node+0x99/0x6e0 [ 46.988743][ T487] ? stack_trace_save+0x1f0/0x1f0 [ 46.993743][ T487] ? kernfs_new_node+0x170/0x170 [ 46.998655][ T487] ? ptr_to_hashval+0x60/0x60 [ 47.003303][ T487] ? snprintf+0xd6/0x120 [ 47.007520][ T487] kernfs_new_node+0x97/0x170 [ 47.012172][ T487] __kernfs_create_file+0x4a/0x270 [ 47.017373][ T487] cgroup_addrm_files+0xab8/0xfe0 [ 47.022374][ T487] ? cgroup_apply_control_enable+0x734/0x12e0 [ 47.028443][ T487] ? cgroup_apply_control+0x93/0x710 [ 47.033705][ T487] ? cgroup_subtree_control_write+0xd19/0x1310 [ 47.039836][ T487] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 47.046000][ T487] ? delete_node+0x759/0x7b0 [ 47.050565][ T487] ? __kasan_check_read+0x11/0x20 [ 47.055590][ T487] ? delete_node+0x759/0x7b0 [ 47.060171][ T487] ? __kasan_check_write+0x14/0x20 [ 47.065267][ T487] ? __radix_tree_replace+0x246/0x2e0 [ 47.070684][ T487] ? idr_get_next+0x4b0/0x4b0 [ 47.075348][ T487] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 47.080358][ T487] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 47.085565][ T487] css_populate_dir+0x137/0x370 [ 47.090415][ T487] cgroup_apply_control_enable+0x629/0x12e0 [ 47.096387][ T487] cgroup_apply_control+0x93/0x710 [ 47.101485][ T487] ? css_next_child+0x160/0x160 [ 47.106585][ T487] ? set_next_entity+0xc5/0x390 [ 47.111412][ T487] ? io_schedule+0x120/0x120 [ 47.115975][ T487] ? kernfs_fop_write_iter+0x15e/0x410 [ 47.121409][ T487] ? __kasan_check_write+0x14/0x20 [ 47.126507][ T487] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 47.131945][ T487] cgroup_subtree_control_write+0xd19/0x1310 [ 47.137902][ T487] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.143956][ T487] ? __kasan_check_write+0x14/0x20 [ 47.149048][ T487] ? _copy_from_iter+0x3fb/0xd60 [ 47.153960][ T487] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.159915][ T487] cgroup_file_write+0x28e/0x590 [ 47.164842][ T487] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.170054][ T487] ? mutex_lock+0xa6/0x110 [ 47.174464][ T487] ? mutex_trylock+0xb0/0xb0 [ 47.179035][ T487] ? __kasan_check_write+0x14/0x20 [ 47.184147][ T487] kernfs_fop_write_iter+0x2d0/0x410 [ 47.189581][ T487] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.194673][ T487] vfs_write+0xc1c/0xf40 [ 47.198908][ T487] ? kernel_write+0x3c0/0x3c0 [ 47.203563][ T487] ? mutex_trylock+0xb0/0xb0 [ 47.208147][ T487] ? __fdget_pos+0x26d/0x310 [ 47.212710][ T487] ? ksys_write+0x77/0x2c0 [ 47.217277][ T487] ksys_write+0x198/0x2c0 [ 47.221587][ T487] ? __ia32_sys_read+0x90/0x90 [ 47.226337][ T487] ? debug_smp_processor_id+0x17/0x20 [ 47.231693][ T487] __x64_sys_write+0x7b/0x90 [ 47.236264][ T487] do_syscall_64+0x34/0x70 [ 47.240660][ T487] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.246535][ T487] RIP: 0033:0x7f157230c0e9 [ 47.250926][ T487] 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 [ 47.270621][ T487] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.279101][ T487] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 47.287149][ T487] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 47.295098][ T487] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.303063][ T487] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.311017][ T487] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 47.320006][ T487] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 47.327073][ T487] !!!! control_disable kill_css(ffff888112122c00) [ 47.333597][ T487] !!!! control_disable kill_css(ffff888112123400) [ 47.340245][ T487] !!!! control_disable kill_css(ffff888112121800) [ 47.346776][ T487] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 47.385588][ C1] !!!! css_killed_ref_fn enqueue(ffff888112122c00) [ 47.392419][ C1] !!!! css_killed_ref_fn enqueue(ffff888112123400) [ 47.399158][ C1] !!!! css_killed_ref_fn enqueue(ffff888112121800) [ 47.405933][ T383] !!!! css_killed_work_fn css_put(ffff888112122c00) [ 47.412604][ T383] !!!! css_release enqueue(ffff888112122c00) [ 47.418715][ T383] !!!! css_killed_work_fn css_put(ffff888112123400) [ 47.425510][ T383] !!!! css_release enqueue(ffff888112123400) [ 47.431722][ T383] !!!! css_killed_work_fn css_put(ffff888112121800) [ 47.438523][ T383] !!!! css_release enqueue(ffff888112121800) [ 47.444714][ T477] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 47.451700][ T486] !!!! css_create css ffff88811212fc00 !!!! [ 47.451872][ T503] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 47.457769][ T486] !!!! css_create css ffff88811212e000 !!!! [ 47.470373][ T486] !!!! css_create css ffff88811212ec00 !!!! [ 47.476630][ T486] FAULT_INJECTION: forcing a failure. [ 47.476630][ T486] name failslab, interval 1, probability 0, space 0, times 0 [ 47.489444][ T486] CPU: 0 PID: 486 Comm: syz-executor.5 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 47.499588][ T486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.509640][ T486] Call Trace: [ 47.512913][ T486] dump_stack_lvl+0x1e2/0x24b [ 47.517578][ T486] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.523039][ T486] dump_stack+0x15/0x17 [ 47.527261][ T486] should_fail+0x3c0/0x510 [ 47.531656][ T486] ? __kernfs_new_node+0x99/0x6e0 [ 47.536695][ T486] __should_failslab+0x9f/0xe0 [ 47.541444][ T486] should_failslab+0x9/0x20 [ 47.545964][ T486] __kmalloc_track_caller+0x5f/0x350 [ 47.551242][ T486] kstrdup_const+0x55/0x90 [ 47.555728][ T486] __kernfs_new_node+0x99/0x6e0 [ 47.560734][ T486] ? stack_trace_save+0x1f0/0x1f0 [ 47.565838][ T486] ? kernfs_new_node+0x170/0x170 [ 47.570768][ T486] ? ptr_to_hashval+0x60/0x60 [ 47.575433][ T486] ? snprintf+0xd6/0x120 [ 47.579653][ T486] ? preempt_schedule_notrace+0x140/0x140 [ 47.585345][ T486] kernfs_new_node+0x97/0x170 [ 47.590085][ T486] __kernfs_create_file+0x4a/0x270 [ 47.595281][ T486] cgroup_addrm_files+0xab8/0xfe0 [ 47.600393][ T486] ? cgroup_apply_control_enable+0x734/0x12e0 [ 47.606474][ T486] ? cgroup_apply_control+0x93/0x710 [ 47.611737][ T486] ? cgroup_subtree_control_write+0xd19/0x1310 [ 47.617870][ T486] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 47.624020][ T486] ? delete_node+0x759/0x7b0 [ 47.628602][ T486] ? __kasan_check_read+0x11/0x20 [ 47.633598][ T486] ? delete_node+0x759/0x7b0 [ 47.638168][ T486] ? __kasan_check_write+0x14/0x20 [ 47.644734][ T486] ? __radix_tree_replace+0x246/0x2e0 [ 47.650197][ T486] ? idr_get_next+0x4b0/0x4b0 [ 47.654908][ T486] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 47.659915][ T486] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 47.665108][ T486] css_populate_dir+0x137/0x370 [ 47.669963][ T486] cgroup_apply_control_enable+0x629/0x12e0 [ 47.675869][ T486] cgroup_apply_control+0x93/0x710 [ 47.680962][ T486] ? css_next_child+0x160/0x160 [ 47.685790][ T486] ? set_next_entity+0xc5/0x390 [ 47.690707][ T486] ? io_schedule+0x120/0x120 [ 47.695272][ T486] ? kernfs_fop_write_iter+0x15e/0x410 [ 47.700708][ T486] ? __kasan_check_write+0x14/0x20 [ 47.705811][ T486] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 47.711088][ T486] cgroup_subtree_control_write+0xd19/0x1310 [ 47.717047][ T486] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.723000][ T486] ? __kasan_check_write+0x14/0x20 [ 47.728096][ T486] ? _copy_from_iter+0x3fb/0xd60 [ 47.733019][ T486] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 47.738988][ T486] cgroup_file_write+0x28e/0x590 [ 47.744682][ T486] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.749774][ T486] ? mutex_lock+0xa6/0x110 [ 47.754183][ T486] ? mutex_trylock+0xb0/0xb0 [ 47.758754][ T486] ? __kasan_check_write+0x14/0x20 [ 47.763841][ T486] kernfs_fop_write_iter+0x2d0/0x410 [ 47.769099][ T486] ? cgroup_seqfile_stop+0xc0/0xc0 [ 47.774184][ T486] vfs_write+0xc1c/0xf40 [ 47.778408][ T486] ? kernel_write+0x3c0/0x3c0 [ 47.783055][ T486] ? mutex_trylock+0xb0/0xb0 [ 47.787616][ T486] ? __fdget_pos+0x26d/0x310 [ 47.792266][ T486] ? ksys_write+0x77/0x2c0 [ 47.796676][ T486] ksys_write+0x198/0x2c0 [ 47.800981][ T486] ? __ia32_sys_read+0x90/0x90 [ 47.805989][ T486] ? debug_smp_processor_id+0x17/0x20 [ 47.811329][ T486] __x64_sys_write+0x7b/0x90 [ 47.816002][ T486] do_syscall_64+0x34/0x70 [ 47.820697][ T486] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.826672][ T486] RIP: 0033:0x7fb14d3820e9 [ 47.831154][ T486] 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 [ 47.850935][ T486] RSP: 002b:00007fb14d2d7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.859414][ T486] RAX: ffffffffffffffda RBX: 00007fb14d495030 RCX: 00007fb14d3820e9 [ 47.867364][ T486] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 47.875398][ T486] RBP: 00007fb14d2d71d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.883344][ T486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.891291][ T486] R13: 00007ffc3daf25ff R14: 00007fb14d2d7300 R15: 0000000000022000 [ 47.901629][ T486] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 47.908953][ T486] !!!! control_disable kill_css(ffff88811212fc00) [ 47.916051][ T486] !!!! control_disable kill_css(ffff88811212e000) [ 47.922602][ T486] !!!! control_disable kill_css(ffff88811212ec00) [ 47.929371][ T486] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 47.955507][ C1] !!!! css_killed_ref_fn enqueue(ffff88811212fc00) [ 47.962390][ C1] !!!! css_killed_ref_fn enqueue(ffff88811212e000) [ 47.969228][ T383] !!!! css_killed_work_fn css_put(ffff88811212fc00) [ 47.975927][ T383] !!!! css_release enqueue(ffff88811212fc00) [ 47.982001][ T383] !!!! css_killed_work_fn css_put(ffff88811212e000) [ 47.988679][ C1] !!!! css_killed_ref_fn enqueue(ffff88811212ec00) [ 47.995595][ T383] !!!! css_release enqueue(ffff88811212e000) [ 48.001842][ T383] !!!! css_killed_work_fn css_put(ffff88811212ec00) [ 48.008537][ T383] !!!! css_release enqueue(ffff88811212ec00) [ 48.014658][ T495] !!!! css_create css ffff888112326800 !!!! [ 48.020747][ T495] !!!! css_create css ffff888112325400 !!!! [ 48.027077][ T495] !!!! css_create css ffff888112326400 !!!! [ 48.033162][ T495] FAULT_INJECTION: forcing a failure. [ 48.033162][ T495] name failslab, interval 1, probability 0, space 0, times 0 [ 48.045904][ T495] CPU: 0 PID: 495 Comm: syz-executor.1 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 48.056251][ T495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.066315][ T495] Call Trace: [ 48.069606][ T495] dump_stack_lvl+0x1e2/0x24b [ 48.074265][ T495] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.079722][ T495] ? find_next_bit+0xd6/0x120 [ 48.084442][ T495] ? cpumask_next+0x11/0x30 [ 48.088940][ T495] dump_stack+0x15/0x17 [ 48.093077][ T495] should_fail+0x3c0/0x510 [ 48.097473][ T495] ? percpu_ref_init+0xd0/0x330 [ 48.102570][ T495] __should_failslab+0x9f/0xe0 [ 48.107344][ T495] should_failslab+0x9/0x20 [ 48.111903][ T495] kmem_cache_alloc_trace+0x3a/0x330 [ 48.117218][ T495] percpu_ref_init+0xd0/0x330 [ 48.121882][ T495] ? cgroup_setup_root+0xea0/0xea0 [ 48.126972][ T495] cgroup_apply_control_enable+0x734/0x12e0 [ 48.132857][ T495] cgroup_apply_control+0x93/0x710 [ 48.138078][ T495] ? css_next_child+0x160/0x160 [ 48.143012][ T495] ? io_schedule+0x120/0x120 [ 48.147617][ T495] ? kernfs_fop_write_iter+0x15e/0x410 [ 48.153074][ T495] ? __kasan_check_write+0x14/0x20 [ 48.158161][ T495] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 48.163444][ T495] cgroup_subtree_control_write+0xd19/0x1310 [ 48.169408][ T495] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.175364][ T495] ? __kasan_check_write+0x14/0x20 [ 48.180471][ T495] ? _copy_from_iter+0x3fb/0xd60 [ 48.185387][ T495] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.191346][ T495] cgroup_file_write+0x28e/0x590 [ 48.196260][ T495] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.201345][ T495] ? mutex_lock+0xa6/0x110 [ 48.205765][ T495] ? mutex_trylock+0xb0/0xb0 [ 48.210356][ T495] ? __kasan_check_write+0x14/0x20 [ 48.215440][ T495] kernfs_fop_write_iter+0x2d0/0x410 [ 48.220733][ T495] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.225847][ T495] vfs_write+0xc1c/0xf40 [ 48.230153][ T495] ? kernel_write+0x3c0/0x3c0 [ 48.234821][ T495] ? mutex_trylock+0xb0/0xb0 [ 48.239396][ T495] ? __fdget_pos+0x26d/0x310 [ 48.243972][ T495] ? ksys_write+0x77/0x2c0 [ 48.248368][ T495] ksys_write+0x198/0x2c0 [ 48.252674][ T495] ? __ia32_sys_read+0x90/0x90 [ 48.257417][ T495] ? debug_smp_processor_id+0x17/0x20 [ 48.262764][ T495] __x64_sys_write+0x7b/0x90 [ 48.267329][ T495] do_syscall_64+0x34/0x70 [ 48.271730][ T495] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.277598][ T495] RIP: 0033:0x7fee9f29f0e9 [ 48.281996][ T495] 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 [ 48.301705][ T495] RSP: 002b:00007fee9f215168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 48.310101][ T495] RAX: ffffffffffffffda RBX: 00007fee9f3b1f60 RCX: 00007fee9f29f0e9 [ 48.318170][ T495] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 48.326124][ T495] RBP: 00007fee9f2151d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.334086][ T495] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.342040][ T495] R13: 00007fff0617897f R14: 00007fee9f215300 R15: 0000000000022000 [ 48.350587][ T495] !!!! css_create rcu_enqueue(ffff888112326400) !!!! [ 48.357547][ T495] !!!! control_disable kill_css(ffff888112326800) [ 48.364123][ T495] !!!! control_disable kill_css(ffff888112325400) [ 48.370802][ T495] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.386765][ C0] !!!! css_killed_ref_fn enqueue(ffff888112326800) [ 48.393415][ C0] !!!! css_killed_ref_fn enqueue(ffff888112325400) [ 48.400358][ T437] !!!! css_killed_work_fn css_put(ffff888112326800) [ 48.407338][ T437] !!!! css_release enqueue(ffff888112326800) [ 48.413415][ T437] !!!! css_killed_work_fn css_put(ffff888112325400) [ 48.420780][ T437] !!!! css_release enqueue(ffff888112325400) [ 48.427064][ T488] !!!! css_create css ffff888112255000 !!!! [ 48.433340][ T509] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.435855][ T488] !!!! css_create css ffff888112113400 !!!! [ 48.446081][ T488] !!!! css_create css ffff888112113800 !!!! [ 48.452119][ T488] FAULT_INJECTION: forcing a failure. [ 48.452119][ T488] name failslab, interval 1, probability 0, space 0, times 0 [ 48.464957][ T488] CPU: 0 PID: 488 Comm: syz-executor.4 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 48.475113][ T488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.485244][ T488] Call Trace: [ 48.488535][ T488] dump_stack_lvl+0x1e2/0x24b [ 48.493369][ T488] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.498983][ T488] dump_stack+0x15/0x17 [ 48.503116][ T488] should_fail+0x3c0/0x510 [ 48.507518][ T488] ? __kernfs_new_node+0x99/0x6e0 [ 48.512538][ T488] __should_failslab+0x9f/0xe0 [ 48.517296][ T488] should_failslab+0x9/0x20 [ 48.521791][ T488] __kmalloc_track_caller+0x5f/0x350 [ 48.527071][ T488] kstrdup_const+0x55/0x90 [ 48.531467][ T488] __kernfs_new_node+0x99/0x6e0 [ 48.536341][ T488] ? stack_trace_save+0x1f0/0x1f0 [ 48.541391][ T488] ? kernfs_new_node+0x170/0x170 [ 48.546347][ T488] ? ptr_to_hashval+0x60/0x60 [ 48.550998][ T488] ? snprintf+0xd6/0x120 [ 48.555224][ T488] kernfs_new_node+0x97/0x170 [ 48.559876][ T488] __kernfs_create_file+0x4a/0x270 [ 48.565067][ T488] cgroup_addrm_files+0xab8/0xfe0 [ 48.570091][ T488] ? cgroup_apply_control_enable+0x734/0x12e0 [ 48.576404][ T488] ? cgroup_apply_control+0x93/0x710 [ 48.581664][ T488] ? cgroup_subtree_control_write+0xd19/0x1310 [ 48.587800][ T488] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 48.593939][ T488] ? delete_node+0x759/0x7b0 [ 48.598512][ T488] ? __kasan_check_read+0x11/0x20 [ 48.603521][ T488] ? delete_node+0x759/0x7b0 [ 48.608086][ T488] ? __kasan_check_write+0x14/0x20 [ 48.613187][ T488] ? __radix_tree_replace+0x246/0x2e0 [ 48.618540][ T488] ? idr_get_next+0x4b0/0x4b0 [ 48.623210][ T488] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 48.628227][ T488] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 48.633421][ T488] css_populate_dir+0x137/0x370 [ 48.638274][ T488] cgroup_apply_control_enable+0x629/0x12e0 [ 48.644161][ T488] cgroup_apply_control+0x93/0x710 [ 48.649271][ T488] ? css_next_child+0x160/0x160 [ 48.654211][ T488] ? io_schedule+0x120/0x120 [ 48.658810][ T488] ? kernfs_fop_write_iter+0x15e/0x410 [ 48.664262][ T488] ? __kasan_check_write+0x14/0x20 [ 48.669349][ T488] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 48.674729][ T488] cgroup_subtree_control_write+0xd19/0x1310 [ 48.680688][ T488] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.686648][ T488] ? __kasan_check_write+0x14/0x20 [ 48.691737][ T488] ? _copy_from_iter+0x3fb/0xd60 [ 48.696651][ T488] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 48.702621][ T488] cgroup_file_write+0x28e/0x590 [ 48.707548][ T488] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.712650][ T488] ? mutex_lock+0xa6/0x110 [ 48.717057][ T488] ? mutex_trylock+0xb0/0xb0 [ 48.721620][ T488] ? __kasan_check_write+0x14/0x20 [ 48.726723][ T488] kernfs_fop_write_iter+0x2d0/0x410 [ 48.731991][ T488] ? cgroup_seqfile_stop+0xc0/0xc0 [ 48.737094][ T488] vfs_write+0xc1c/0xf40 [ 48.741327][ T488] ? kernel_write+0x3c0/0x3c0 [ 48.746004][ T488] ? mutex_trylock+0xb0/0xb0 [ 48.750599][ T488] ? __fdget_pos+0x26d/0x310 [ 48.755200][ T488] ? ksys_write+0x77/0x2c0 [ 48.759592][ T488] ksys_write+0x198/0x2c0 [ 48.763899][ T488] ? __ia32_sys_read+0x90/0x90 [ 48.768648][ T488] ? debug_smp_processor_id+0x17/0x20 [ 48.774009][ T488] __x64_sys_write+0x7b/0x90 [ 48.778579][ T488] do_syscall_64+0x34/0x70 [ 48.782989][ T488] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.788871][ T488] RIP: 0033:0x7f210270a0e9 [ 48.793283][ T488] 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 [ 48.812877][ T488] RSP: 002b:00007f210265f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 48.821267][ T488] RAX: ffffffffffffffda RBX: 00007f210281d030 RCX: 00007f210270a0e9 [ 48.829218][ T488] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 48.837184][ T488] RBP: 00007f210265f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.845222][ T488] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 2022/06/06 21:51:39 executed programs: 26 [ 48.853182][ T488] R13: 00007ffff3aad91f R14: 00007f210265f300 R15: 0000000000022000 [ 48.861496][ T488] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 48.868763][ T488] !!!! control_disable kill_css(ffff888112255000) [ 48.875443][ T488] !!!! control_disable kill_css(ffff888112113400) [ 48.882174][ T488] !!!! control_disable kill_css(ffff888112113800) [ 48.888745][ T488] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.915515][ C0] !!!! css_killed_ref_fn enqueue(ffff888112255000) [ 48.922135][ C0] !!!! css_killed_ref_fn enqueue(ffff888112113400) [ 48.929092][ T5] !!!! css_killed_work_fn css_put(ffff888112255000) [ 48.935834][ T5] !!!! css_release enqueue(ffff888112255000) [ 48.941941][ T5] !!!! css_killed_work_fn css_put(ffff888112113400) [ 48.948816][ C0] !!!! css_killed_ref_fn enqueue(ffff888112113800) [ 48.955451][ T5] !!!! css_release enqueue(ffff888112113400) [ 48.961912][ T5] !!!! css_killed_work_fn css_put(ffff888112113800) [ 48.968654][ T5] !!!! css_release enqueue(ffff888112113800) [ 48.974794][ T506] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 48.974914][ T510] !!!! css_create css ffff8881124d1c00 !!!! [ 48.987501][ T510] !!!! css_create css ffff8881124d3000 !!!! [ 48.993509][ T510] FAULT_INJECTION: forcing a failure. [ 48.993509][ T510] name failslab, interval 1, probability 0, space 0, times 0 [ 49.006361][ T510] CPU: 1 PID: 510 Comm: syz-executor.1 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 49.016487][ T510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.026525][ T510] Call Trace: [ 49.029801][ T510] dump_stack_lvl+0x1e2/0x24b [ 49.034491][ T510] ? panic+0x7d7/0x7d7 [ 49.038559][ T510] ? bfq_pos_tree_add_move+0x43e/0x43e [ 49.044003][ T510] dump_stack+0x15/0x17 [ 49.048146][ T510] should_fail+0x3c0/0x510 [ 49.052549][ T510] ? pids_css_alloc+0x4e/0x120 [ 49.057297][ T510] __should_failslab+0x9f/0xe0 [ 49.062070][ T510] should_failslab+0x9/0x20 [ 49.066631][ T510] kmem_cache_alloc_trace+0x3a/0x330 [ 49.071923][ T510] pids_css_alloc+0x4e/0x120 [ 49.076499][ T510] cgroup_apply_control_enable+0x6d9/0x12e0 [ 49.082549][ T510] cgroup_apply_control+0x93/0x710 [ 49.087754][ T510] ? css_next_child+0x160/0x160 [ 49.092605][ T510] ? io_schedule+0x120/0x120 [ 49.097178][ T510] ? kernfs_fop_write_iter+0x15e/0x410 [ 49.102613][ T510] ? __kasan_check_write+0x14/0x20 [ 49.107701][ T510] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 49.112965][ T510] cgroup_subtree_control_write+0xd19/0x1310 [ 49.118924][ T510] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.124883][ T510] ? __kasan_check_write+0x14/0x20 [ 49.129975][ T510] ? _copy_from_iter+0x3fb/0xd60 [ 49.134921][ T510] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.140881][ T510] cgroup_file_write+0x28e/0x590 [ 49.145803][ T510] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.150924][ T510] ? mutex_lock+0xa6/0x110 [ 49.155317][ T510] ? mutex_trylock+0xb0/0xb0 [ 49.159980][ T510] ? __kasan_check_write+0x14/0x20 [ 49.165067][ T510] kernfs_fop_write_iter+0x2d0/0x410 [ 49.170603][ T510] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.175719][ T510] vfs_write+0xc1c/0xf40 [ 49.179943][ T510] ? kernel_write+0x3c0/0x3c0 [ 49.184624][ T510] ? mutex_trylock+0xb0/0xb0 [ 49.189208][ T510] ? __fdget_pos+0x26d/0x310 [ 49.193977][ T510] ? ksys_write+0x77/0x2c0 [ 49.198369][ T510] ksys_write+0x198/0x2c0 [ 49.202674][ T510] ? __ia32_sys_read+0x90/0x90 [ 49.207411][ T510] ? debug_smp_processor_id+0x17/0x20 [ 49.212771][ T510] __x64_sys_write+0x7b/0x90 [ 49.217520][ T510] do_syscall_64+0x34/0x70 [ 49.221925][ T510] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.227809][ T510] RIP: 0033:0x7fee9f29f0e9 [ 49.232208][ T510] 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 [ 49.251806][ T510] RSP: 002b:00007fee9f1f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 49.261069][ T510] RAX: ffffffffffffffda RBX: 00007fee9f3b2030 RCX: 00007fee9f29f0e9 [ 49.270408][ T510] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 49.278361][ T510] RBP: 00007fee9f1f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 49.286332][ T510] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 49.294280][ T510] R13: 00007fff0617897f R14: 00007fee9f1f4300 R15: 0000000000022000 [ 49.303594][ T510] !!!! css_create css fffffffffffffff4 !!!! [ 49.309617][ T510] !!!! control_disable kill_css(ffff8881124d1c00) [ 49.316235][ T510] !!!! control_disable kill_css(ffff8881124d3000) [ 49.322847][ T510] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.355512][ C0] !!!! css_killed_ref_fn enqueue(ffff8881124d1c00) [ 49.362173][ C0] !!!! css_killed_ref_fn enqueue(ffff8881124d3000) [ 49.369031][ T5] !!!! css_killed_work_fn css_put(ffff8881124d1c00) [ 49.376007][ T5] !!!! css_release enqueue(ffff8881124d1c00) [ 49.382229][ T5] !!!! css_killed_work_fn css_put(ffff8881124d3000) [ 49.389274][ T5] !!!! css_release enqueue(ffff8881124d3000) [ 49.395508][ T504] !!!! css_create css ffff888112642800 !!!! [ 49.401598][ T504] !!!! css_create css ffff888112641400 !!!! [ 49.407586][ T504] !!!! css_create css ffff888112640c00 !!!! [ 49.413562][ T504] FAULT_INJECTION: forcing a failure. [ 49.413562][ T504] name failslab, interval 1, probability 0, space 0, times 0 [ 49.426267][ T504] CPU: 1 PID: 504 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 49.437612][ T504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.447645][ T504] Call Trace: [ 49.450910][ T504] dump_stack_lvl+0x1e2/0x24b [ 49.455577][ T504] ? bfq_pos_tree_add_move+0x43e/0x43e [ 49.461028][ T504] dump_stack+0x15/0x17 [ 49.465168][ T504] should_fail+0x3c0/0x510 [ 49.469565][ T504] ? __kernfs_new_node+0x99/0x6e0 [ 49.476567][ T504] __should_failslab+0x9f/0xe0 [ 49.481336][ T504] should_failslab+0x9/0x20 [ 49.485829][ T504] __kmalloc_track_caller+0x5f/0x350 [ 49.491100][ T504] kstrdup_const+0x55/0x90 [ 49.495576][ T504] __kernfs_new_node+0x99/0x6e0 [ 49.500404][ T504] ? stack_trace_save+0x1f0/0x1f0 [ 49.505427][ T504] ? kernfs_new_node+0x170/0x170 [ 49.510352][ T504] ? ptr_to_hashval+0x60/0x60 [ 49.515011][ T504] ? snprintf+0xd6/0x120 [ 49.519229][ T504] kernfs_new_node+0x97/0x170 [ 49.523880][ T504] __kernfs_create_file+0x4a/0x270 [ 49.528965][ T504] cgroup_addrm_files+0xab8/0xfe0 [ 49.533977][ T504] ? cgroup_apply_control_enable+0x734/0x12e0 [ 49.540018][ T504] ? cgroup_apply_control+0x93/0x710 [ 49.545287][ T504] ? cgroup_subtree_control_write+0xd19/0x1310 [ 49.551414][ T504] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 49.557550][ T504] ? delete_node+0x759/0x7b0 [ 49.562126][ T504] ? __kasan_check_read+0x11/0x20 [ 49.567134][ T504] ? delete_node+0x759/0x7b0 [ 49.571707][ T504] ? __kasan_check_write+0x14/0x20 [ 49.576825][ T504] ? __radix_tree_replace+0x246/0x2e0 [ 49.582182][ T504] ? idr_get_next+0x4b0/0x4b0 [ 49.586850][ T504] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 49.591859][ T504] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 49.597840][ T504] css_populate_dir+0x137/0x370 [ 49.602692][ T504] cgroup_apply_control_enable+0x629/0x12e0 [ 49.608595][ T504] cgroup_apply_control+0x93/0x710 [ 49.613690][ T504] ? css_next_child+0x160/0x160 [ 49.618536][ T504] ? dequeue_task_fair+0x7ad/0xb50 [ 49.623640][ T504] ? io_schedule+0x120/0x120 [ 49.628292][ T504] ? kernfs_fop_write_iter+0x15e/0x410 [ 49.633829][ T504] ? __kasan_check_write+0x14/0x20 [ 49.638924][ T504] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 49.644198][ T504] cgroup_subtree_control_write+0xd19/0x1310 [ 49.650168][ T504] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.656124][ T504] ? __kasan_check_write+0x14/0x20 [ 49.661214][ T504] ? _copy_from_iter+0x3fb/0xd60 [ 49.666136][ T504] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 49.672093][ T504] cgroup_file_write+0x28e/0x590 [ 49.677016][ T504] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.684111][ T504] ? mutex_lock+0xa6/0x110 [ 49.688512][ T504] ? mutex_trylock+0xb0/0xb0 [ 49.693081][ T504] ? __kasan_check_write+0x14/0x20 [ 49.698168][ T504] kernfs_fop_write_iter+0x2d0/0x410 [ 49.703426][ T504] ? cgroup_seqfile_stop+0xc0/0xc0 [ 49.708516][ T504] vfs_write+0xc1c/0xf40 [ 49.712731][ T504] ? kernel_write+0x3c0/0x3c0 [ 49.717387][ T504] ? mutex_trylock+0xb0/0xb0 [ 49.721960][ T504] ? __fdget_pos+0x26d/0x310 [ 49.726525][ T504] ? ksys_write+0x77/0x2c0 [ 49.730912][ T504] ksys_write+0x198/0x2c0 [ 49.735215][ T504] ? __ia32_sys_read+0x90/0x90 [ 49.740039][ T504] ? debug_smp_processor_id+0x17/0x20 [ 49.745385][ T504] __x64_sys_write+0x7b/0x90 [ 49.749963][ T504] do_syscall_64+0x34/0x70 [ 49.754457][ T504] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.760495][ T504] RIP: 0033:0x7f157230c0e9 [ 49.764890][ T504] 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 [ 49.784562][ T504] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 49.792965][ T504] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 49.800922][ T504] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 49.808898][ T504] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 [ 49.816859][ T504] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 49.824838][ T504] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 49.833183][ T504] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 49.840328][ T504] !!!! control_disable kill_css(ffff888112642800) [ 49.846927][ T504] !!!! control_disable kill_css(ffff888112641400) [ 49.853686][ T504] !!!! control_disable kill_css(ffff888112640c00) [ 49.860475][ T504] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.885535][ C1] !!!! css_killed_ref_fn enqueue(ffff888112642800) [ 49.892257][ T383] !!!! css_killed_work_fn css_put(ffff888112642800) [ 49.899184][ T383] !!!! css_release enqueue(ffff888112642800) [ 49.905551][ C0] !!!! css_killed_ref_fn enqueue(ffff888112641400) [ 49.912205][ C0] !!!! css_killed_ref_fn enqueue(ffff888112640c00) [ 49.918888][ T125] !!!! css_killed_work_fn css_put(ffff888112641400) [ 49.926010][ T125] !!!! css_release enqueue(ffff888112641400) [ 49.932139][ T125] !!!! css_killed_work_fn css_put(ffff888112640c00) [ 49.939142][ T515] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 49.939166][ T501] !!!! css_create css ffff88811262f400 !!!! [ 49.951881][ T501] !!!! css_create css ffff88811262d800 !!!! [ 49.957892][ T501] !!!! css_create css ffff88811262e800 !!!! [ 49.963787][ T501] FAULT_INJECTION: forcing a failure. [ 49.963787][ T501] name failslab, interval 1, probability 0, space 0, times 0 [ 49.976393][ T501] CPU: 1 PID: 501 Comm: syz-executor.2 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 49.986810][ T501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.996845][ T501] Call Trace: [ 50.000115][ T501] dump_stack_lvl+0x1e2/0x24b [ 50.004777][ T501] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.010218][ T501] ? find_next_bit+0xd6/0x120 [ 50.014886][ T501] ? cpumask_next+0x11/0x30 [ 50.019385][ T501] dump_stack+0x15/0x17 [ 50.023517][ T501] should_fail+0x3c0/0x510 [ 50.028025][ T501] ? percpu_ref_init+0xd0/0x330 [ 50.032853][ T501] __should_failslab+0x9f/0xe0 [ 50.037594][ T501] should_failslab+0x9/0x20 [ 50.042080][ T501] kmem_cache_alloc_trace+0x3a/0x330 [ 50.047435][ T501] percpu_ref_init+0xd0/0x330 [ 50.052156][ T501] ? cgroup_setup_root+0xea0/0xea0 [ 50.057263][ T501] cgroup_apply_control_enable+0x734/0x12e0 [ 50.063142][ T501] cgroup_apply_control+0x93/0x710 [ 50.068239][ T501] ? css_next_child+0x160/0x160 [ 50.073075][ T501] ? io_schedule+0x120/0x120 [ 50.077658][ T501] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.083098][ T501] ? __kasan_check_write+0x14/0x20 [ 50.088191][ T501] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.093456][ T501] cgroup_subtree_control_write+0xd19/0x1310 [ 50.099588][ T501] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.105553][ T501] ? __kasan_check_write+0x14/0x20 [ 50.110639][ T501] ? _copy_from_iter+0x3fb/0xd60 [ 50.115643][ T501] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.121601][ T501] cgroup_file_write+0x28e/0x590 [ 50.126632][ T501] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.131846][ T501] ? mutex_lock+0xa6/0x110 [ 50.136257][ T501] ? mutex_trylock+0xb0/0xb0 [ 50.140834][ T501] ? __kasan_check_write+0x14/0x20 [ 50.145933][ T501] kernfs_fop_write_iter+0x2d0/0x410 [ 50.151206][ T501] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.156443][ T501] vfs_write+0xc1c/0xf40 [ 50.160760][ T501] ? kernel_write+0x3c0/0x3c0 [ 50.165443][ T501] ? mutex_trylock+0xb0/0xb0 [ 50.170067][ T501] ? __fdget_pos+0x26d/0x310 [ 50.174694][ T501] ? ksys_write+0x77/0x2c0 [ 50.179104][ T501] ksys_write+0x198/0x2c0 [ 50.183507][ T501] ? __ia32_sys_read+0x90/0x90 [ 50.188249][ T501] ? debug_smp_processor_id+0x17/0x20 [ 50.193606][ T501] __x64_sys_write+0x7b/0x90 [ 50.198190][ T501] do_syscall_64+0x34/0x70 [ 50.202580][ T501] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.208449][ T501] RIP: 0033:0x7f05b76700e9 [ 50.212941][ 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 [ 50.232526][ T501] RSP: 002b:00007f05b75e6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.241027][ T501] RAX: ffffffffffffffda RBX: 00007f05b7782f60 RCX: 00007f05b76700e9 [ 50.249093][ T501] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.257054][ T501] RBP: 00007f05b75e61d0 R08: 0000000000000000 R09: 0000000000000000 [ 50.265016][ T501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 50.273234][ T501] R13: 00007fff27b047ef R14: 00007f05b75e6300 R15: 0000000000022000 [ 50.281585][ T501] !!!! css_create rcu_enqueue(ffff88811262e800) !!!! [ 50.288387][ T501] !!!! control_disable kill_css(ffff88811262f400) [ 50.294910][ T501] !!!! control_disable kill_css(ffff88811262d800) [ 50.301487][ T501] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.345537][ C1] !!!! css_killed_ref_fn enqueue(ffff88811262f400) [ 50.352179][ C1] !!!! css_killed_ref_fn enqueue(ffff88811262d800) [ 50.359202][ T384] !!!! css_killed_work_fn css_put(ffff88811262f400) [ 50.366131][ T384] !!!! css_release enqueue(ffff88811262f400) [ 50.372285][ T384] !!!! css_killed_work_fn css_put(ffff88811262d800) [ 50.379332][ T384] !!!! css_release enqueue(ffff88811262d800) [ 50.385443][ T521] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.392499][ T516] !!!! css_create css ffff88810f63dc00 !!!! [ 50.398519][ T516] !!!! css_create css ffff88811262c800 !!!! [ 50.404471][ T516] !!!! css_create css ffff88811262dc00 !!!! [ 50.410513][ T516] FAULT_INJECTION: forcing a failure. [ 50.410513][ T516] name failslab, interval 1, probability 0, space 0, times 0 [ 50.423249][ T516] CPU: 1 PID: 516 Comm: syz-executor.1 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 50.433411][ T516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.443449][ T516] Call Trace: [ 50.446727][ T516] dump_stack_lvl+0x1e2/0x24b [ 50.451379][ T516] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.456819][ T516] ? find_next_bit+0xd6/0x120 [ 50.461491][ T516] ? cpumask_next+0x11/0x30 [ 50.466089][ T516] dump_stack+0x15/0x17 [ 50.470308][ T516] should_fail+0x3c0/0x510 [ 50.474733][ T516] ? percpu_ref_init+0xd0/0x330 [ 50.479566][ T516] __should_failslab+0x9f/0xe0 [ 50.484320][ T516] should_failslab+0x9/0x20 [ 50.488810][ T516] kmem_cache_alloc_trace+0x3a/0x330 [ 50.494085][ T516] percpu_ref_init+0xd0/0x330 [ 50.498745][ T516] ? cgroup_setup_root+0xea0/0xea0 [ 50.503859][ T516] cgroup_apply_control_enable+0x734/0x12e0 [ 50.509743][ T516] cgroup_apply_control+0x93/0x710 [ 50.514840][ T516] ? css_next_child+0x160/0x160 [ 50.519674][ T516] ? dequeue_task_fair+0x7ad/0xb50 [ 50.524776][ T516] ? io_schedule+0x120/0x120 [ 50.530136][ T516] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.535622][ T516] ? __kasan_check_write+0x14/0x20 [ 50.540802][ T516] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.546207][ T516] cgroup_subtree_control_write+0xd19/0x1310 [ 50.552521][ T516] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.558487][ T516] ? __kasan_check_write+0x14/0x20 [ 50.563676][ T516] ? _copy_from_iter+0x3fb/0xd60 [ 50.568716][ T516] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.574684][ T516] cgroup_file_write+0x28e/0x590 [ 50.579621][ T516] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.584712][ T516] ? mutex_lock+0xa6/0x110 [ 50.589112][ T516] ? mutex_trylock+0xb0/0xb0 [ 50.593768][ T516] ? __kasan_check_write+0x14/0x20 [ 50.598876][ T516] kernfs_fop_write_iter+0x2d0/0x410 [ 50.604143][ T516] ? cgroup_seqfile_stop+0xc0/0xc0 [ 50.609234][ T516] vfs_write+0xc1c/0xf40 [ 50.613463][ T516] ? kernel_write+0x3c0/0x3c0 [ 50.618120][ T516] ? mutex_trylock+0xb0/0xb0 [ 50.622700][ T516] ? __fdget_pos+0x26d/0x310 [ 50.627364][ T516] ? ksys_write+0x77/0x2c0 [ 50.631783][ T516] ksys_write+0x198/0x2c0 [ 50.636098][ T516] ? __ia32_sys_read+0x90/0x90 [ 50.640845][ T516] ? debug_smp_processor_id+0x17/0x20 [ 50.646206][ T516] __x64_sys_write+0x7b/0x90 [ 50.650779][ T516] do_syscall_64+0x34/0x70 [ 50.655963][ T516] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.661850][ T516] RIP: 0033:0x7fee9f29f0e9 [ 50.666252][ T516] 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 [ 50.685899][ T516] RSP: 002b:00007fee9f1f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.694387][ T516] RAX: ffffffffffffffda RBX: 00007fee9f3b2030 RCX: 00007fee9f29f0e9 [ 50.702510][ T516] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 50.710468][ T516] RBP: 00007fee9f1f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 50.718421][ T516] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 50.726371][ T516] R13: 00007fff0617897f R14: 00007fee9f1f4300 R15: 0000000000022000 [ 50.734772][ T516] !!!! css_create rcu_enqueue(ffff88811262dc00) !!!! [ 50.741540][ T516] !!!! control_disable kill_css(ffff88810f63dc00) [ 50.748320][ T516] !!!! control_disable kill_css(ffff88811262c800) [ 50.754923][ T516] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.785516][ C0] !!!! css_killed_ref_fn enqueue(ffff88810f63dc00) [ 50.792166][ C0] !!!! css_killed_ref_fn enqueue(ffff88811262c800) [ 50.798872][ T125] !!!! css_killed_work_fn css_put(ffff88810f63dc00) [ 50.805852][ T125] !!!! css_release enqueue(ffff88810f63dc00) [ 50.811980][ T125] !!!! css_killed_work_fn css_put(ffff88811262c800) [ 50.818731][ T125] !!!! css_release enqueue(ffff88811262c800) [ 50.825066][ T498] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.825281][ T518] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 50.831666][ T507] !!!! css_create css ffff8881127ebc00 !!!! [ 50.844437][ T507] !!!! css_create css ffff8881127ea000 !!!! [ 50.850561][ T507] FAULT_INJECTION: forcing a failure. [ 50.850561][ T507] name failslab, interval 1, probability 0, space 0, times 0 [ 50.863351][ T507] CPU: 1 PID: 507 Comm: syz-executor.5 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 50.873597][ T507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.883633][ T507] Call Trace: [ 50.886930][ T507] dump_stack_lvl+0x1e2/0x24b [ 50.891586][ T507] ? panic+0x7d7/0x7d7 [ 50.895633][ T507] ? bfq_pos_tree_add_move+0x43e/0x43e [ 50.901068][ T507] dump_stack+0x15/0x17 [ 50.905204][ T507] should_fail+0x3c0/0x510 [ 50.909603][ T507] ? pids_css_alloc+0x4e/0x120 [ 50.914350][ T507] __should_failslab+0x9f/0xe0 [ 50.919102][ T507] should_failslab+0x9/0x20 [ 50.923598][ T507] kmem_cache_alloc_trace+0x3a/0x330 [ 50.928871][ T507] pids_css_alloc+0x4e/0x120 [ 50.933445][ T507] cgroup_apply_control_enable+0x6d9/0x12e0 [ 50.939320][ T507] cgroup_apply_control+0x93/0x710 [ 50.944411][ T507] ? css_next_child+0x160/0x160 [ 50.949940][ T507] ? dequeue_task_fair+0x7ad/0xb50 [ 50.955031][ T507] ? io_schedule+0x120/0x120 [ 50.959597][ T507] ? kernfs_fop_write_iter+0x15e/0x410 [ 50.965140][ T507] ? __kasan_check_write+0x14/0x20 [ 50.970335][ T507] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 50.975619][ T507] cgroup_subtree_control_write+0xd19/0x1310 [ 50.981579][ T507] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 50.987536][ T507] ? __kasan_check_write+0x14/0x20 [ 50.992624][ T507] ? _copy_from_iter+0x3fb/0xd60 [ 50.997536][ T507] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.003489][ T507] cgroup_file_write+0x28e/0x590 [ 51.008402][ T507] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.013486][ T507] ? mutex_lock+0xa6/0x110 [ 51.017879][ T507] ? mutex_trylock+0xb0/0xb0 [ 51.022453][ T507] ? __kasan_check_write+0x14/0x20 [ 51.027546][ T507] kernfs_fop_write_iter+0x2d0/0x410 [ 51.032813][ T507] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.037906][ T507] vfs_write+0xc1c/0xf40 [ 51.042130][ T507] ? kernel_write+0x3c0/0x3c0 [ 51.046787][ T507] ? mutex_trylock+0xb0/0xb0 [ 51.051349][ T507] ? __fdget_pos+0x26d/0x310 [ 51.055911][ T507] ? ksys_write+0x77/0x2c0 [ 51.060313][ T507] ksys_write+0x198/0x2c0 [ 51.064622][ T507] ? __ia32_sys_read+0x90/0x90 [ 51.069365][ T507] ? debug_smp_processor_id+0x17/0x20 [ 51.074713][ T507] __x64_sys_write+0x7b/0x90 [ 51.079280][ T507] do_syscall_64+0x34/0x70 [ 51.083672][ T507] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.089541][ T507] RIP: 0033:0x7fb14d3820e9 [ 51.093933][ T507] 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 [ 51.113511][ T507] RSP: 002b:00007fb14d2d7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.121911][ T507] RAX: ffffffffffffffda RBX: 00007fb14d495030 RCX: 00007fb14d3820e9 [ 51.129862][ T507] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 51.137812][ T507] RBP: 00007fb14d2d71d0 R08: 0000000000000000 R09: 0000000000000000 [ 51.145787][ T507] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.153743][ T507] R13: 00007ffc3daf25ff R14: 00007fb14d2d7300 R15: 0000000000022000 [ 51.162925][ T507] !!!! css_create css fffffffffffffff4 !!!! [ 51.169205][ T507] !!!! control_disable kill_css(ffff8881127ebc00) [ 51.175834][ T507] !!!! control_disable kill_css(ffff8881127ea000) [ 51.182463][ T507] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.215502][ C1] !!!! css_killed_ref_fn enqueue(ffff8881127ebc00) [ 51.222110][ C1] !!!! css_killed_ref_fn enqueue(ffff8881127ea000) [ 51.228732][ T384] !!!! css_killed_work_fn css_put(ffff8881127ebc00) [ 51.235411][ T384] !!!! css_release enqueue(ffff8881127ebc00) [ 51.241522][ T384] !!!! css_killed_work_fn css_put(ffff8881127ea000) [ 51.248248][ T384] !!!! css_release enqueue(ffff8881127ea000) [ 51.254350][ T527] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.254379][ T519] !!!! css_create css ffff8881127eac00 !!!! [ 51.266906][ T519] !!!! css_create css ffff8881127eb400 !!!! [ 51.272820][ T519] !!!! css_create css ffff8881127e9800 !!!! [ 51.278976][ T519] FAULT_INJECTION: forcing a failure. [ 51.278976][ T519] name failslab, interval 1, probability 0, space 0, times 0 [ 51.291728][ T519] CPU: 1 PID: 519 Comm: syz-executor.3 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 51.302037][ T519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.312083][ T519] Call Trace: [ 51.315369][ T519] dump_stack_lvl+0x1e2/0x24b [ 51.320284][ T519] ? bfq_pos_tree_add_move+0x43e/0x43e [ 51.325729][ T519] dump_stack+0x15/0x17 [ 51.329862][ T519] should_fail+0x3c0/0x510 [ 51.334266][ T519] ? __kernfs_new_node+0x99/0x6e0 [ 51.339263][ T519] __should_failslab+0x9f/0xe0 [ 51.344003][ T519] should_failslab+0x9/0x20 [ 51.348478][ T519] __kmalloc_track_caller+0x5f/0x350 [ 51.353739][ T519] kstrdup_const+0x55/0x90 [ 51.358133][ T519] __kernfs_new_node+0x99/0x6e0 [ 51.362979][ T519] ? stack_trace_save+0x1f0/0x1f0 [ 51.367978][ T519] ? kernfs_new_node+0x170/0x170 [ 51.372917][ T519] ? ptr_to_hashval+0x60/0x60 [ 51.377568][ T519] ? snprintf+0xd6/0x120 [ 51.381783][ T519] kernfs_new_node+0x97/0x170 [ 51.386430][ T519] __kernfs_create_file+0x4a/0x270 [ 51.391534][ T519] cgroup_addrm_files+0xab8/0xfe0 [ 51.396649][ T519] ? cgroup_apply_control_enable+0x734/0x12e0 [ 51.402825][ T519] ? cgroup_apply_control+0x93/0x710 [ 51.408212][ T519] ? cgroup_subtree_control_write+0xd19/0x1310 [ 51.414344][ T519] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 51.420475][ T519] ? delete_node+0x759/0x7b0 [ 51.425042][ T519] ? __kasan_check_read+0x11/0x20 [ 51.430121][ T519] ? delete_node+0x759/0x7b0 [ 51.434698][ T519] ? __kasan_check_write+0x14/0x20 [ 51.439784][ T519] ? __radix_tree_replace+0x246/0x2e0 [ 51.445146][ T519] ? idr_get_next+0x4b0/0x4b0 [ 51.449808][ T519] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 51.454824][ T519] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 51.459995][ T519] css_populate_dir+0x137/0x370 [ 51.464831][ T519] cgroup_apply_control_enable+0x629/0x12e0 [ 51.470707][ T519] cgroup_apply_control+0x93/0x710 [ 51.475808][ T519] ? css_next_child+0x160/0x160 [ 51.480634][ T519] ? dequeue_task_fair+0x7ad/0xb50 [ 51.485721][ T519] ? io_schedule+0x120/0x120 [ 51.490375][ T519] ? kernfs_fop_write_iter+0x15e/0x410 [ 51.495819][ T519] ? __kasan_check_write+0x14/0x20 [ 51.500924][ T519] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 51.506231][ T519] cgroup_subtree_control_write+0xd19/0x1310 [ 51.512198][ T519] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.518155][ T519] ? __kasan_check_write+0x14/0x20 [ 51.523241][ T519] ? _copy_from_iter+0x3fb/0xd60 [ 51.528224][ T519] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 51.534200][ T519] cgroup_file_write+0x28e/0x590 [ 51.539142][ T519] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.544237][ T519] ? mutex_lock+0xa6/0x110 [ 51.548675][ T519] ? mutex_trylock+0xb0/0xb0 [ 51.553263][ T519] ? __kasan_check_write+0x14/0x20 [ 51.558356][ T519] kernfs_fop_write_iter+0x2d0/0x410 [ 51.563708][ T519] ? cgroup_seqfile_stop+0xc0/0xc0 [ 51.568809][ T519] vfs_write+0xc1c/0xf40 [ 51.573030][ T519] ? kernel_write+0x3c0/0x3c0 [ 51.577689][ T519] ? mutex_trylock+0xb0/0xb0 [ 51.582257][ T519] ? __fdget_pos+0x26d/0x310 [ 51.586826][ T519] ? ksys_write+0x77/0x2c0 [ 51.591228][ T519] ksys_write+0x198/0x2c0 [ 51.595632][ T519] ? __ia32_sys_read+0x90/0x90 [ 51.600374][ T519] ? debug_smp_processor_id+0x17/0x20 [ 51.605722][ T519] __x64_sys_write+0x7b/0x90 [ 51.610293][ T519] do_syscall_64+0x34/0x70 [ 51.614728][ T519] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.620717][ T519] RIP: 0033:0x7f157230c0e9 [ 51.625136][ 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 [ 51.645427][ T519] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.653836][ T519] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 51.662168][ T519] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 51.670153][ T519] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 [ 51.678110][ T519] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 51.686078][ T519] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 51.694384][ T519] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 51.701717][ T519] !!!! control_disable kill_css(ffff8881127eac00) [ 51.708384][ T519] !!!! control_disable kill_css(ffff8881127eb400) [ 51.715066][ T519] !!!! control_disable kill_css(ffff8881127e9800) [ 51.721754][ T519] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 51.755523][ C0] !!!! css_killed_ref_fn enqueue(ffff8881127eac00) [ 51.762529][ C0] !!!! css_killed_ref_fn enqueue(ffff8881127eb400) [ 51.769147][ C0] !!!! css_killed_ref_fn enqueue(ffff8881127e9800) [ 51.775813][ T125] !!!! css_killed_work_fn css_put(ffff8881127eac00) [ 51.782475][ T125] !!!! css_release enqueue(ffff8881127eac00) [ 51.789462][ T437] !!!! css_killed_work_fn css_put(ffff8881127eb400) [ 51.796401][ T437] !!!! css_release enqueue(ffff8881127eb400) [ 51.802701][ T125] !!!! css_killed_work_fn css_put(ffff8881127e9800) [ 51.809812][ T125] !!!! css_release enqueue(ffff8881127e9800) [ 51.816089][ T528] !!!! css_create css ffff888112986000 !!!! [ 51.822119][ T528] !!!! css_create css ffff888112984400 !!!! [ 51.828146][ T528] !!!! css_create css ffff88810f63ec00 !!!! [ 51.834163][ T528] FAULT_INJECTION: forcing a failure. [ 51.834163][ T528] name failslab, interval 1, probability 0, space 0, times 0 [ 51.847131][ T528] CPU: 0 PID: 528 Comm: syz-executor.5 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 51.857282][ T528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.867330][ T528] Call Trace: [ 51.870782][ T528] dump_stack_lvl+0x1e2/0x24b [ 51.875626][ T528] ? bfq_pos_tree_add_move+0x43e/0x43e [ 51.881199][ T528] ? serial8250_console_write+0xae0/0xe60 [ 51.887517][ T528] ? record_print_text+0x266/0x420 [ 51.892708][ T528] dump_stack+0x15/0x17 [ 51.896952][ T528] should_fail+0x3c0/0x510 [ 51.901348][ T528] ? __kernfs_new_node+0x99/0x6e0 [ 51.906452][ T528] __should_failslab+0x9f/0xe0 [ 51.911286][ T528] should_failslab+0x9/0x20 [ 51.915785][ T528] __kmalloc_track_caller+0x5f/0x350 [ 51.921062][ T528] kstrdup_const+0x55/0x90 [ 51.925454][ T528] __kernfs_new_node+0x99/0x6e0 [ 51.930307][ T528] ? stack_trace_save+0x1f0/0x1f0 [ 51.935575][ T528] ? kernfs_new_node+0x170/0x170 [ 51.940684][ T528] ? ptr_to_hashval+0x60/0x60 [ 51.945357][ T528] ? snprintf+0xd6/0x120 [ 51.949798][ T528] kernfs_new_node+0x97/0x170 [ 51.954462][ T528] __kernfs_create_file+0x4a/0x270 [ 51.959678][ T528] cgroup_addrm_files+0xab8/0xfe0 [ 51.965139][ T528] ? cgroup_apply_control_enable+0x734/0x12e0 [ 51.971187][ T528] ? cgroup_apply_control+0x93/0x710 [ 51.976449][ T528] ? cgroup_subtree_control_write+0xd19/0x1310 [ 51.982595][ T528] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 51.988756][ T528] ? delete_node+0x759/0x7b0 [ 51.993441][ T528] ? __kasan_check_read+0x11/0x20 [ 51.998470][ T528] ? delete_node+0x759/0x7b0 [ 52.003071][ T528] ? __kasan_check_write+0x14/0x20 [ 52.008178][ T528] ? __radix_tree_replace+0x246/0x2e0 [ 52.013618][ T528] ? idr_get_next+0x4b0/0x4b0 [ 52.018275][ T528] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 52.023275][ T528] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 52.028539][ T528] css_populate_dir+0x137/0x370 [ 52.033383][ T528] cgroup_apply_control_enable+0x629/0x12e0 [ 52.039359][ T528] cgroup_apply_control+0x93/0x710 [ 52.044546][ T528] ? css_next_child+0x160/0x160 [ 52.049555][ T528] ? io_schedule+0x120/0x120 [ 52.054133][ T528] ? kernfs_fop_write_iter+0x15e/0x410 [ 52.059595][ T528] ? __kasan_check_write+0x14/0x20 [ 52.064683][ T528] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 52.069948][ T528] cgroup_subtree_control_write+0xd19/0x1310 [ 52.075906][ T528] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.081977][ T528] ? __kasan_check_write+0x14/0x20 [ 52.087331][ T528] ? _copy_from_iter+0x3fb/0xd60 [ 52.092247][ T528] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.098313][ T528] cgroup_file_write+0x28e/0x590 [ 52.103242][ T528] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.108346][ T528] ? mutex_lock+0xa6/0x110 [ 52.112742][ T528] ? mutex_trylock+0xb0/0xb0 [ 52.117402][ T528] ? __kasan_check_write+0x14/0x20 [ 52.122503][ T528] kernfs_fop_write_iter+0x2d0/0x410 [ 52.127776][ T528] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.132967][ T528] vfs_write+0xc1c/0xf40 [ 52.137214][ T528] ? kernel_write+0x3c0/0x3c0 [ 52.141906][ T528] ? mutex_trylock+0xb0/0xb0 [ 52.146490][ T528] ? __fdget_pos+0x26d/0x310 [ 52.151088][ T528] ? ksys_write+0x77/0x2c0 [ 52.155670][ T528] ksys_write+0x198/0x2c0 [ 52.159980][ T528] ? __ia32_sys_read+0x90/0x90 [ 52.164751][ T528] ? debug_smp_processor_id+0x17/0x20 [ 52.170341][ T528] __x64_sys_write+0x7b/0x90 [ 52.175378][ T528] do_syscall_64+0x34/0x70 [ 52.179778][ T528] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.185649][ T528] RIP: 0033:0x7fb14d3820e9 [ 52.190074][ 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 [ 52.209671][ T528] RSP: 002b:00007fb14d2d7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 52.218076][ T528] RAX: ffffffffffffffda RBX: 00007fb14d495030 RCX: 00007fb14d3820e9 [ 52.226040][ T528] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 52.233992][ T528] RBP: 00007fb14d2d71d0 R08: 0000000000000000 R09: 0000000000000000 [ 52.241944][ T528] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 52.250130][ T528] R13: 00007ffc3daf25ff R14: 00007fb14d2d7300 R15: 0000000000022000 [ 52.261068][ T528] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 52.268123][ T528] !!!! control_disable kill_css(ffff888112986000) [ 52.274669][ T528] !!!! control_disable kill_css(ffff888112984400) [ 52.281407][ T528] !!!! control_disable kill_css(ffff88810f63ec00) [ 52.288098][ T528] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 52.315497][ C0] !!!! css_killed_ref_fn enqueue(ffff888112986000) [ 52.322261][ C0] !!!! css_killed_ref_fn enqueue(ffff888112984400) [ 52.329087][ T437] !!!! css_killed_work_fn css_put(ffff888112986000) [ 52.335803][ T437] !!!! css_release enqueue(ffff888112986000) [ 52.341934][ T437] !!!! css_killed_work_fn css_put(ffff888112984400) [ 52.348707][ C0] !!!! css_killed_ref_fn enqueue(ffff88810f63ec00) [ 52.355775][ T437] !!!! css_release enqueue(ffff888112984400) [ 52.362106][ T437] !!!! css_killed_work_fn css_put(ffff88810f63ec00) [ 52.368975][ T437] !!!! css_release enqueue(ffff88810f63ec00) [ 52.375060][ T512] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 52.375085][ T530] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 52.381807][ T499] !!!! css_create css ffff888112b7e800 !!!! [ 52.394466][ T499] !!!! css_create css ffff888112b7d800 !!!! [ 52.400479][ T499] !!!! css_create css ffff888112874000 !!!! [ 52.406797][ T499] FAULT_INJECTION: forcing a failure. [ 52.406797][ T499] name failslab, interval 1, probability 0, space 0, times 0 [ 52.419689][ T499] CPU: 0 PID: 499 Comm: syz-executor.0 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 52.430162][ T499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.440387][ T499] Call Trace: [ 52.443760][ T499] dump_stack_lvl+0x1e2/0x24b [ 52.448614][ T499] ? bfq_pos_tree_add_move+0x43e/0x43e [ 52.454056][ T499] ? find_next_bit+0xd6/0x120 [ 52.458715][ T499] ? cpumask_next+0x11/0x30 [ 52.463307][ T499] dump_stack+0x15/0x17 [ 52.467456][ T499] should_fail+0x3c0/0x510 [ 52.471850][ T499] ? percpu_ref_init+0xd0/0x330 [ 52.476682][ T499] __should_failslab+0x9f/0xe0 [ 52.481521][ T499] should_failslab+0x9/0x20 [ 52.486001][ T499] kmem_cache_alloc_trace+0x3a/0x330 [ 52.491274][ T499] percpu_ref_init+0xd0/0x330 [ 52.495937][ T499] ? cgroup_setup_root+0xea0/0xea0 [ 52.501048][ T499] cgroup_apply_control_enable+0x734/0x12e0 [ 52.506933][ T499] cgroup_apply_control+0x93/0x710 [ 52.512041][ T499] ? css_next_child+0x160/0x160 [ 52.516948][ T499] ? io_schedule+0x120/0x120 [ 52.521517][ T499] ? kernfs_fop_write_iter+0x15e/0x410 [ 52.526971][ T499] ? __kasan_check_write+0x14/0x20 [ 52.532079][ T499] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 52.537339][ T499] cgroup_subtree_control_write+0xd19/0x1310 [ 52.543294][ T499] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.549252][ T499] ? __kasan_check_write+0x14/0x20 [ 52.554345][ T499] ? _copy_from_iter+0x3fb/0xd60 [ 52.559359][ T499] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.565314][ T499] cgroup_file_write+0x28e/0x590 [ 52.570251][ T499] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.575368][ T499] ? mutex_lock+0xa6/0x110 [ 52.579786][ T499] ? mutex_trylock+0xb0/0xb0 [ 52.584360][ T499] ? __kasan_check_write+0x14/0x20 [ 52.589452][ T499] kernfs_fop_write_iter+0x2d0/0x410 [ 52.594810][ T499] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.599898][ T499] vfs_write+0xc1c/0xf40 [ 52.604124][ T499] ? kernel_write+0x3c0/0x3c0 [ 52.608788][ T499] ? mutex_trylock+0xb0/0xb0 [ 52.613443][ T499] ? __fdget_pos+0x26d/0x310 [ 52.618008][ T499] ? ksys_write+0x77/0x2c0 [ 52.622403][ T499] ksys_write+0x198/0x2c0 [ 52.626711][ T499] ? __ia32_sys_read+0x90/0x90 [ 52.631447][ T499] ? debug_smp_processor_id+0x17/0x20 [ 52.636815][ T499] __x64_sys_write+0x7b/0x90 [ 52.641384][ T499] do_syscall_64+0x34/0x70 [ 52.645789][ T499] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.651675][ T499] RIP: 0033:0x7f1d047a10e9 [ 52.656123][ T499] 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 [ 52.675804][ T499] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 52.684547][ T499] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 52.692614][ T499] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 52.700675][ T499] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 52.708641][ T499] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 52.716652][ T499] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 52.725661][ T499] !!!! css_create rcu_enqueue(ffff888112874000) !!!! [ 52.732391][ T499] !!!! control_disable kill_css(ffff888112b7e800) [ 52.739022][ T499] !!!! control_disable kill_css(ffff888112b7d800) [ 52.745744][ T499] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 52.775557][ C0] !!!! css_killed_ref_fn enqueue(ffff888112b7e800) [ 52.782311][ T437] !!!! css_killed_work_fn css_put(ffff888112b7e800) [ 52.789176][ T437] !!!! css_release enqueue(ffff888112b7e800) [ 52.795510][ C0] !!!! css_killed_ref_fn enqueue(ffff888112b7d800) [ 52.802495][ T437] !!!! css_killed_work_fn css_put(ffff888112b7d800) [ 52.809290][ T437] !!!! css_release enqueue(ffff888112b7d800) [ 52.815882][ T513] !!!! css_create css ffff888112cf5800 !!!! [ 52.821899][ T513] !!!! css_create css ffff888112cf6800 !!!! [ 52.828260][ T513] FAULT_INJECTION: forcing a failure. [ 52.828260][ T513] name failslab, interval 1, probability 0, space 0, times 0 [ 52.841067][ T513] CPU: 0 PID: 513 Comm: syz-executor.4 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 52.851196][ T513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.861325][ T513] Call Trace: [ 52.864611][ T513] dump_stack_lvl+0x1e2/0x24b [ 52.869370][ T513] ? panic+0x7d7/0x7d7 [ 52.873425][ T513] ? bfq_pos_tree_add_move+0x43e/0x43e [ 52.878862][ T513] dump_stack+0x15/0x17 [ 52.883085][ T513] should_fail+0x3c0/0x510 [ 52.887657][ T513] ? pids_css_alloc+0x4e/0x120 [ 52.892410][ T513] __should_failslab+0x9f/0xe0 [ 52.897177][ T513] should_failslab+0x9/0x20 [ 52.901665][ T513] kmem_cache_alloc_trace+0x3a/0x330 [ 52.906931][ T513] pids_css_alloc+0x4e/0x120 [ 52.911513][ T513] cgroup_apply_control_enable+0x6d9/0x12e0 [ 52.917403][ T513] cgroup_apply_control+0x93/0x710 [ 52.922493][ T513] ? css_next_child+0x160/0x160 [ 52.927321][ T513] ? dequeue_task_fair+0x7ad/0xb50 [ 52.932428][ T513] ? io_schedule+0x120/0x120 [ 52.937181][ T513] ? kernfs_fop_write_iter+0x15e/0x410 [ 52.942632][ T513] ? __kasan_check_write+0x14/0x20 [ 52.947829][ T513] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 52.953094][ T513] cgroup_subtree_control_write+0xd19/0x1310 [ 52.959251][ T513] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.965249][ T513] ? __kasan_check_write+0x14/0x20 [ 52.970472][ T513] ? _copy_from_iter+0x3fb/0xd60 [ 52.975413][ T513] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 52.981393][ T513] cgroup_file_write+0x28e/0x590 [ 52.986321][ T513] ? cgroup_seqfile_stop+0xc0/0xc0 [ 52.991506][ T513] ? mutex_lock+0xa6/0x110 [ 52.996006][ T513] ? mutex_trylock+0xb0/0xb0 [ 53.000582][ T513] ? __kasan_check_write+0x14/0x20 [ 53.005670][ T513] kernfs_fop_write_iter+0x2d0/0x410 [ 53.010956][ T513] ? cgroup_seqfile_stop+0xc0/0xc0 [ 53.016061][ T513] vfs_write+0xc1c/0xf40 [ 53.020284][ T513] ? kernel_write+0x3c0/0x3c0 [ 53.025046][ T513] ? mutex_trylock+0xb0/0xb0 [ 53.029963][ T513] ? __fdget_pos+0x26d/0x310 [ 53.034529][ T513] ? ksys_write+0x77/0x2c0 [ 53.038924][ T513] ksys_write+0x198/0x2c0 [ 53.043254][ T513] ? __ia32_sys_read+0x90/0x90 [ 53.047995][ T513] ? debug_smp_processor_id+0x17/0x20 [ 53.053341][ T513] __x64_sys_write+0x7b/0x90 [ 53.057910][ T513] do_syscall_64+0x34/0x70 [ 53.062317][ T513] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.068188][ T513] RIP: 0033:0x7f210270a0e9 [ 53.072584][ T513] 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 [ 53.092173][ T513] RSP: 002b:00007f210265f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 53.100652][ T513] RAX: ffffffffffffffda RBX: 00007f210281d030 RCX: 00007f210270a0e9 [ 53.108604][ T513] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 53.116663][ T513] RBP: 00007f210265f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 53.124613][ T513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 53.132580][ T513] R13: 00007ffff3aad91f R14: 00007f210265f300 R15: 0000000000022000 [ 53.142721][ T513] !!!! css_create css fffffffffffffff4 !!!! [ 53.148993][ T513] !!!! control_disable kill_css(ffff888112cf5800) [ 53.155759][ T513] !!!! control_disable kill_css(ffff888112cf6800) [ 53.162374][ T513] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 53.170430][ T414] ------------[ cut here ]------------ [ 53.175933][ T414] WARNING: CPU: 1 PID: 414 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 53.184948][ T414] Modules linked in: [ 53.188901][ T414] CPU: 1 PID: 414 Comm: syz-executor.4 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 53.188908][ C0] !!!! css_killed_ref_fn enqueue(ffff888112cf5800) [ 53.188939][ C0] !!!! css_killed_ref_fn enqueue(ffff888112cf6800) [ 53.199087][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.199106][ T414] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 53.199122][ T414] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 53.205784][ T125] !!!! css_killed_work_fn css_put(ffff888112cf5800) [ 53.212288][ T414] RSP: 0018:ffffc90000ef7ba0 EFLAGS: 00010293 [ 53.212301][ T414] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810c8b0000 [ 53.212308][ T414] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 53.212314][ T414] RBP: ffffc90000ef7c70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 53.212321][ T414] R10: fffff520001def65 R11: 1ffff920001def64 R12: dffffc0000000000 [ 53.212327][ T414] R13: ffff8881109fc700 R14: ffffc90000ef7c00 R15: 1ffff920001def7c [ 53.212335][ T414] FS: 0000555555a7c400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 53.212341][ T414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.212361][ T414] CR2: 00007ffff3aaca9c CR3: 000000011a140000 CR4: 00000000003506a0 [ 53.223638][ T125] !!!! css_release enqueue(ffff888112cf5800) [ 53.228395][ T414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.248425][ T125] !!!! css_killed_work_fn css_put(ffff888112cf6800) [ 53.254652][ T414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.254657][ T414] Call Trace: [ 53.254675][ T414] ? io_schedule+0x120/0x120 [ 53.254686][ T414] ? vfs_submount+0xb0/0xb0 [ 53.254696][ T414] ? shrink_dentry_list+0x4ec/0x500 [ 53.254715][ T414] namespace_unlock+0x448/0x4f0 [ 53.261236][ T125] !!!! css_release enqueue(ffff888112cf6800) [ 53.268837][ T414] ? umount_tree+0xf50/0xf50 [ 53.268854][ T414] ? __detach_mounts+0x670/0x670 [ 53.277210][ T524] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 53.284813][ T414] ? selinux_umount+0xf0/0x130 [ 53.284824][ T414] path_umount+0xf03/0xfb0 [ 53.284841][ T414] ? namespace_unlock+0x4f0/0x4f0 [ 53.292875][ T533] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 53.301234][ T414] ? user_path_at_empty+0x40/0x50 [ 53.310435][ T522] !!!! css_create css ffff888112dd2800 !!!! [ 53.316951][ T414] __x64_sys_umount+0x122/0x170 [ 53.316971][ T414] ? path_umount+0xfb0/0xfb0 [ 53.326605][ T522] !!!! css_create css ffff888112dd7400 !!!! [ 53.331328][ T414] ? debug_smp_processor_id+0x17/0x20 [ 53.339592][ T522] !!!! css_create css ffff888112dd5800 !!!! [ 53.346011][ T414] do_syscall_64+0x34/0x70 [ 53.354042][ T522] FAULT_INJECTION: forcing a failure. [ 53.354042][ T522] name failslab, interval 1, probability 0, space 0, times 0 [ 53.357519][ T414] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.357534][ T414] RIP: 0033:0x7f210270b557 [ 53.362144][ T522] CPU: 0 PID: 522 Comm: syz-executor.2 Not tainted 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 53.366588][ T414] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.374894][ T522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.379816][ T414] RSP: 002b:00007ffff3aaca78 EFLAGS: 00000246 [ 53.385847][ T522] Call Trace: [ 53.385864][ T522] dump_stack_lvl+0x1e2/0x24b [ 53.385880][ T522] ? bfq_pos_tree_add_move+0x43e/0x43e [ 53.390435][ T414] ORIG_RAX: 00000000000000a6 [ 53.390449][ T414] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f210270b557 [ 53.395363][ T522] ? find_next_bit+0xd6/0x120 [ 53.401911][ T414] RDX: 00007ffff3aacb49 RSI: 000000000000000a RDI: 00007ffff3aacb40 [ 53.406629][ T522] ? cpumask_next+0x11/0x30 [ 53.406642][ T522] dump_stack+0x15/0x17 [ 53.406651][ T522] should_fail+0x3c0/0x510 [ 53.406660][ T522] ? percpu_ref_init+0xd0/0x330 [ 53.406670][ T522] __should_failslab+0x9f/0xe0 [ 53.406689][ T522] should_failslab+0x9/0x20 [ 53.411087][ T414] RBP: 00007ffff3aacb40 R08: 00000000ffffffff R09: 00007ffff3aac910 [ 53.416095][ T522] kmem_cache_alloc_trace+0x3a/0x330 [ 53.416110][ T522] percpu_ref_init+0xd0/0x330 [ 53.416130][ T522] ? cgroup_setup_root+0xea0/0xea0 [ 53.422692][ T414] R10: 0000555555a7dba3 R11: 0000000000000246 R12: 00007f21027631f8 [ 53.428032][ T522] cgroup_apply_control_enable+0x734/0x12e0 [ 53.428044][ T522] cgroup_apply_control+0x93/0x710 [ 53.428059][ T522] ? css_next_child+0x160/0x160 [ 53.434016][ T414] R13: 00007ffff3aadc00 R14: 0000555555a7db00 R15: 00007ffff3aadc40 [ 53.438838][ T522] ? dequeue_task_fair+0x7ad/0xb50 [ 53.438849][ T522] ? io_schedule+0x120/0x120 [ 53.438865][ T522] ? kernfs_fop_write_iter+0x15e/0x410 [ 53.443441][ T414] ---[ end trace eb0090bb59c3f92c ]--- [ 53.449312][ T522] ? __kasan_check_write+0x14/0x20 [ 53.449322][ T522] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 53.449338][ T522] cgroup_subtree_control_write+0xd19/0x1310 [ 53.692462][ T522] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 53.698425][ T522] ? __kasan_check_write+0x14/0x20 [ 53.703533][ T522] ? _copy_from_iter+0x3fb/0xd60 [ 53.708452][ T522] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 53.714443][ T522] cgroup_file_write+0x28e/0x590 [ 53.719415][ T522] ? cgroup_seqfile_stop+0xc0/0xc0 [ 53.724524][ T522] ? mutex_lock+0xa6/0x110 [ 53.728943][ T522] ? mutex_trylock+0xb0/0xb0 [ 53.733525][ T522] ? __kasan_check_write+0x14/0x20 [ 53.738618][ T522] kernfs_fop_write_iter+0x2d0/0x410 [ 53.743882][ T522] ? cgroup_seqfile_stop+0xc0/0xc0 [ 53.748974][ T522] vfs_write+0xc1c/0xf40 [ 53.753196][ T522] ? kernel_write+0x3c0/0x3c0 [ 53.757866][ T522] ? mutex_trylock+0xb0/0xb0 [ 53.762457][ T522] ? __fdget_pos+0x26d/0x310 [ 53.767029][ T522] ? ksys_write+0x77/0x2c0 [ 53.771577][ T522] ksys_write+0x198/0x2c0 [ 53.775893][ T522] ? __ia32_sys_read+0x90/0x90 [ 53.780644][ T522] ? debug_smp_processor_id+0x17/0x20 [ 53.786022][ T522] __x64_sys_write+0x7b/0x90 [ 53.790609][ T522] do_syscall_64+0x34/0x70 [ 53.795022][ T522] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.801153][ T522] RIP: 0033:0x7f05b76700e9 [ 53.805562][ 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 [ 53.825319][ T522] RSP: 002b:00007f05b75c5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 53.833712][ T522] RAX: ffffffffffffffda RBX: 00007f05b7783030 RCX: 00007f05b76700e9 [ 53.841663][ T522] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 53.849701][ T522] RBP: 00007f05b75c51d0 R08: 0000000000000000 R09: 0000000000000000 [ 53.857651][ T522] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 53.865604][ T522] R13: 00007fff27b047ef R14: 00007f05b75c5300 R15: 0000000000022000 [ 53.874258][ T414] ------------[ cut here ]------------ [ 53.879838][ T414] WARNING: CPU: 1 PID: 414 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 53.888999][ T414] Modules linked in: [ 53.892890][ T414] CPU: 1 PID: 414 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 53.904435][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.915124][ T414] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 53.920763][ T414] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 53.940483][ T414] RSP: 0018:ffffc90000ef7ca0 EFLAGS: 00010293 [ 53.946551][ T414] RAX: ffffffff81b68afa RBX: 00000000fffffffe RCX: ffff88810c8b0000 [ 53.954564][ T414] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 53.962539][ T414] RBP: ffffc90000ef7d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 53.970534][ T414] R10: fffff520001def85 R11: 1ffff920001def84 R12: dffffc0000000000 [ 53.978538][ T414] R13: ffff8881109fc700 R14: ffffc90000ef7d00 R15: 1ffff920001def9c [ 53.986521][ T414] FS: 0000555555a7c400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 53.995585][ T414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.002154][ T414] CR2: 00007ffff3aaca9c CR3: 000000011a140000 CR4: 00000000003506a0 [ 54.010129][ T414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.018097][ T414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.026078][ T414] Call Trace: [ 54.029363][ T414] ? lockref_get_or_lock+0x340/0x340 [ 54.034652][ T414] ? umount_tree+0xf50/0xf50 [ 54.039264][ T414] ? vfs_submount+0xb0/0xb0 [ 54.043775][ T414] ? dput+0x2b6/0x320 [ 54.047772][ T414] path_umount+0x1fe/0xfb0 [ 54.052262][ T414] ? namespace_unlock+0x4f0/0x4f0 [ 54.057291][ T414] ? user_path_at_empty+0x40/0x50 [ 54.062321][ T414] __x64_sys_umount+0x122/0x170 [ 54.067177][ T414] ? path_umount+0xfb0/0xfb0 [ 54.071753][ T414] ? debug_smp_processor_id+0x17/0x20 [ 54.077162][ T414] do_syscall_64+0x34/0x70 [ 54.081564][ T414] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.087454][ T414] RIP: 0033:0x7f210270b557 [ 54.091857][ T414] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 54.111687][ T414] RSP: 002b:00007ffff3aaca78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 54.120194][ T414] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f210270b557 [ 54.128171][ T414] RDX: 00007ffff3aacb49 RSI: 000000000000000a RDI: 00007ffff3aacb40 [ 54.136176][ T414] RBP: 00007ffff3aacb40 R08: 00000000ffffffff R09: 00007ffff3aac910 [ 54.144129][ T414] R10: 0000555555a7dba3 R11: 0000000000000246 R12: 00007f21027631f8 [ 54.152113][ T414] R13: 00007ffff3aadc00 R14: 0000555555a7db00 R15: 00007ffff3aadc40 [ 54.160191][ T414] ---[ end trace eb0090bb59c3f92d ]--- [ 54.165882][ T522] !!!! css_create rcu_enqueue(ffff888112dd5800) !!!! [ 54.173488][ T522] !!!! control_disable kill_css(ffff888112dd2800) 2022/06/06 21:51:44 executed programs: 36 [ 54.180234][ T522] !!!! control_disable kill_css(ffff888112dd7400) [ 54.187249][ T522] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 54.196342][ T408] ------------[ cut here ]------------ [ 54.201846][ T408] WARNING: CPU: 1 PID: 408 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 54.210878][ T408] Modules linked in: [ 54.214763][ T408] CPU: 1 PID: 408 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 54.226352][ C1] !!!! css_killed_ref_fn enqueue(ffff888112dd2800) [ 54.226369][ C1] !!!! css_killed_ref_fn enqueue(ffff888112dd7400) [ 54.239696][ T408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.250161][ T408] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 54.255815][ T408] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 54.275614][ T408] RSP: 0018:ffffc90000b77ca0 EFLAGS: 00010293 [ 54.281668][ T408] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810c0be2c0 [ 54.289682][ T408] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 54.297669][ T408] RBP: ffffc90000b77d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 54.305661][ T408] R10: fffff5200016ef85 R11: 1ffff9200016ef84 R12: dffffc0000000000 [ 54.313616][ T408] R13: ffff8881114f3a40 R14: ffffc90000b77d00 R15: 1ffff9200016ef9c [ 54.321650][ T408] FS: 0000555556225400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 54.330626][ T408] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.337414][ T408] CR2: 000055555622eb38 CR3: 000000010c09b000 CR4: 00000000003506a0 [ 54.345381][ T408] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.353939][ T408] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.362274][ T408] Call Trace: [ 54.365624][ T408] ? lockref_get_or_lock+0x340/0x340 [ 54.370990][ T408] ? umount_tree+0xf50/0xf50 [ 54.375607][ T408] ? vfs_submount+0xb0/0xb0 [ 54.380108][ T408] ? dput+0x2b6/0x320 [ 54.384081][ T408] path_umount+0x1fe/0xfb0 [ 54.388549][ T408] ? namespace_unlock+0x4f0/0x4f0 [ 54.393672][ T408] ? user_path_at_empty+0x40/0x50 [ 54.398818][ T408] __x64_sys_umount+0x122/0x170 [ 54.403657][ T408] ? path_umount+0xfb0/0xfb0 [ 54.408283][ T408] ? debug_smp_processor_id+0x17/0x20 [ 54.413644][ T408] do_syscall_64+0x34/0x70 [ 54.418113][ T408] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.424115][ T408] RIP: 0033:0x7f05b7671557 [ 54.428595][ T408] 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 [ 54.448222][ T408] RSP: 002b:00007fff27b03948 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 54.457169][ T408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f05b7671557 [ 54.465157][ T408] RDX: 00007fff27b03a19 RSI: 000000000000000a RDI: 00007fff27b03a10 [ 54.473159][ T408] RBP: 00007fff27b03a10 R08: 00000000ffffffff R09: 00007fff27b037e0 [ 54.481315][ T408] R10: 0000555556226ba3 R11: 0000000000000246 R12: 00007f05b76c91f8 [ 54.489309][ T408] R13: 00007fff27b04ad0 R14: 0000555556226b00 R15: 00007fff27b04b10 [ 54.497297][ T408] ---[ end trace eb0090bb59c3f92e ]--- [ 54.502866][ T384] !!!! css_killed_work_fn css_put(ffff888112dd2800) [ 54.509644][ T384] !!!! css_release enqueue(ffff888112dd2800) [ 54.516013][ T386] !!!! css_killed_work_fn css_put(ffff888112dd7400) [ 54.522962][ T386] !!!! css_release enqueue(ffff888112dd7400) [ 54.529324][ T535] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 54.536234][ T531] !!!! css_create css ffff888112ec3c00 !!!! [ 54.542221][ T531] !!!! css_create css ffff888112ae3800 !!!! [ 54.548398][ T531] !!!! css_create css ffff888112ae2800 !!!! [ 54.554406][ T531] FAULT_INJECTION: forcing a failure. [ 54.554406][ T531] name failslab, interval 1, probability 0, space 0, times 0 [ 54.567390][ T531] CPU: 0 PID: 531 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 54.579076][ T531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.589212][ T531] Call Trace: [ 54.592491][ T531] dump_stack_lvl+0x1e2/0x24b [ 54.597242][ T531] ? bfq_pos_tree_add_move+0x43e/0x43e [ 54.602774][ T531] ? find_next_bit+0xd6/0x120 [ 54.607562][ T531] ? cpumask_next+0x11/0x30 [ 54.612053][ T531] dump_stack+0x15/0x17 [ 54.616206][ T531] should_fail+0x3c0/0x510 [ 54.620621][ T531] ? percpu_ref_init+0xd0/0x330 [ 54.625453][ T531] __should_failslab+0x9f/0xe0 [ 54.630206][ T531] should_failslab+0x9/0x20 [ 54.634697][ T531] kmem_cache_alloc_trace+0x3a/0x330 [ 54.640032][ T531] percpu_ref_init+0xd0/0x330 [ 54.644704][ T531] ? cgroup_setup_root+0xea0/0xea0 [ 54.649988][ T531] cgroup_apply_control_enable+0x734/0x12e0 [ 54.655862][ T531] cgroup_apply_control+0x93/0x710 [ 54.660948][ T531] ? css_next_child+0x160/0x160 [ 54.665790][ T531] ? set_next_entity+0xc5/0x390 [ 54.670618][ T531] ? io_schedule+0x120/0x120 [ 54.675185][ T531] ? kernfs_fop_write_iter+0x15e/0x410 [ 54.681605][ T531] ? __kasan_check_write+0x14/0x20 [ 54.686701][ T531] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 54.691977][ T531] cgroup_subtree_control_write+0xd19/0x1310 [ 54.697940][ T531] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 54.704027][ T531] ? __kasan_check_write+0x14/0x20 [ 54.709136][ T531] ? _copy_from_iter+0x3fb/0xd60 [ 54.714063][ T531] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 54.720253][ T531] cgroup_file_write+0x28e/0x590 [ 54.725310][ T531] ? cgroup_seqfile_stop+0xc0/0xc0 [ 54.730557][ T531] ? mutex_lock+0xa6/0x110 [ 54.734956][ T531] ? mutex_trylock+0xb0/0xb0 [ 54.739614][ T531] ? __kasan_check_write+0x14/0x20 [ 54.744787][ T531] kernfs_fop_write_iter+0x2d0/0x410 [ 54.750153][ T531] ? cgroup_seqfile_stop+0xc0/0xc0 [ 54.755250][ T531] vfs_write+0xc1c/0xf40 [ 54.759611][ T531] ? kernel_write+0x3c0/0x3c0 [ 54.764362][ T531] ? mutex_trylock+0xb0/0xb0 [ 54.769020][ T531] ? __fdget_pos+0x26d/0x310 [ 54.773686][ T531] ? ksys_write+0x77/0x2c0 [ 54.778172][ T531] ksys_write+0x198/0x2c0 [ 54.782565][ T531] ? __ia32_sys_read+0x90/0x90 [ 54.787396][ T531] ? debug_smp_processor_id+0x17/0x20 [ 54.792742][ T531] __x64_sys_write+0x7b/0x90 [ 54.797309][ T531] do_syscall_64+0x34/0x70 [ 54.801723][ T531] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.807589][ T531] RIP: 0033:0x7f157230c0e9 [ 54.811985][ T531] 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 [ 54.831591][ T531] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 54.839992][ T531] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 54.847950][ T531] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 54.855899][ T531] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 [ 54.863849][ T531] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 54.871973][ T531] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 54.882020][ T531] !!!! css_create rcu_enqueue(ffff888112ae2800) !!!! [ 54.888797][ T531] !!!! control_disable kill_css(ffff888112ec3c00) [ 54.895605][ T531] !!!! control_disable kill_css(ffff888112ae3800) [ 54.902423][ T531] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 54.935562][ C0] !!!! css_killed_ref_fn enqueue(ffff888112ec3c00) [ 54.942452][ C0] !!!! css_killed_ref_fn enqueue(ffff888112ae3800) [ 54.949457][ T125] !!!! css_killed_work_fn css_put(ffff888112ec3c00) [ 54.956263][ T125] !!!! css_release enqueue(ffff888112ec3c00) [ 54.962717][ T125] !!!! css_killed_work_fn css_put(ffff888112ae3800) [ 54.969492][ T125] !!!! css_release enqueue(ffff888112ae3800) [ 54.976080][ T537] !!!! css_create css ffff88811309bc00 !!!! [ 54.982331][ T537] !!!! css_create css ffff88811309a000 !!!! [ 54.988557][ T537] !!!! css_create css ffff88811309fc00 !!!! [ 54.994799][ T537] FAULT_INJECTION: forcing a failure. [ 54.994799][ T537] name failslab, interval 1, probability 0, space 0, times 0 [ 55.007622][ T537] CPU: 0 PID: 537 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 55.019278][ T537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.029408][ T537] Call Trace: [ 55.032695][ T537] dump_stack_lvl+0x1e2/0x24b [ 55.037508][ T537] ? bfq_pos_tree_add_move+0x43e/0x43e [ 55.042956][ T537] ? find_next_bit+0xd6/0x120 [ 55.047732][ T537] ? cpumask_next+0x11/0x30 [ 55.052220][ T537] dump_stack+0x15/0x17 [ 55.056357][ T537] should_fail+0x3c0/0x510 [ 55.060759][ T537] ? percpu_ref_init+0xd0/0x330 [ 55.065591][ T537] __should_failslab+0x9f/0xe0 [ 55.070339][ T537] should_failslab+0x9/0x20 [ 55.074833][ T537] kmem_cache_alloc_trace+0x3a/0x330 [ 55.080112][ T537] percpu_ref_init+0xd0/0x330 [ 55.084899][ T537] ? cgroup_setup_root+0xea0/0xea0 [ 55.090002][ T537] cgroup_apply_control_enable+0x734/0x12e0 [ 55.095912][ T537] cgroup_apply_control+0x93/0x710 [ 55.101113][ T537] ? css_next_child+0x160/0x160 [ 55.105956][ T537] ? dequeue_task_fair+0x7ad/0xb50 [ 55.111066][ T537] ? io_schedule+0x120/0x120 [ 55.115737][ T537] ? kernfs_fop_write_iter+0x15e/0x410 [ 55.121203][ T537] ? __kasan_check_write+0x14/0x20 [ 55.126308][ T537] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 55.131576][ T537] cgroup_subtree_control_write+0xd19/0x1310 [ 55.137551][ T537] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.143521][ T537] ? __kasan_check_write+0x14/0x20 [ 55.148621][ T537] ? _copy_from_iter+0x3fb/0xd60 [ 55.153650][ T537] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.159619][ T537] cgroup_file_write+0x28e/0x590 [ 55.164548][ T537] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.169718][ T537] ? mutex_lock+0xa6/0x110 [ 55.174142][ T537] ? mutex_trylock+0xb0/0xb0 [ 55.178727][ T537] ? __kasan_check_write+0x14/0x20 [ 55.183814][ T537] kernfs_fop_write_iter+0x2d0/0x410 [ 55.189079][ T537] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.194189][ T537] vfs_write+0xc1c/0xf40 [ 55.198505][ T537] ? kernel_write+0x3c0/0x3c0 [ 55.203343][ T537] ? mutex_trylock+0xb0/0xb0 [ 55.207914][ T537] ? __fdget_pos+0x26d/0x310 [ 55.212480][ T537] ? ksys_write+0x77/0x2c0 [ 55.216891][ T537] ksys_write+0x198/0x2c0 [ 55.221217][ T537] ? __ia32_sys_read+0x90/0x90 [ 55.225960][ T537] ? debug_smp_processor_id+0x17/0x20 [ 55.231401][ T537] __x64_sys_write+0x7b/0x90 [ 55.236066][ T537] do_syscall_64+0x34/0x70 [ 55.240476][ T537] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.246350][ T537] RIP: 0033:0x7f1d047a10e9 [ 55.250756][ T537] 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 [ 55.270373][ T537] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 55.278793][ T537] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 55.286782][ T537] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 55.294746][ T537] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 55.303003][ T537] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 55.311080][ T537] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 55.319418][ T537] !!!! css_create rcu_enqueue(ffff88811309fc00) !!!! [ 55.326325][ T537] !!!! control_disable kill_css(ffff88811309bc00) [ 55.333428][ T537] !!!! control_disable kill_css(ffff88811309a000) [ 55.340406][ T537] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 55.365557][ C1] !!!! css_killed_ref_fn enqueue(ffff88811309bc00) [ 55.372421][ T383] !!!! css_killed_work_fn css_put(ffff88811309bc00) [ 55.379131][ T383] !!!! css_release enqueue(ffff88811309bc00) [ 55.385308][ C1] !!!! css_killed_ref_fn enqueue(ffff88811309a000) [ 55.392095][ T383] !!!! css_killed_work_fn css_put(ffff88811309a000) [ 55.398952][ T383] !!!! css_release enqueue(ffff88811309a000) [ 55.405109][ T536] !!!! css_create css ffff8881f738c000 !!!! [ 55.411281][ T536] !!!! css_create css ffff88811308f800 !!!! [ 55.417329][ T536] !!!! css_create css ffff88811309f400 !!!! [ 55.423400][ T536] FAULT_INJECTION: forcing a failure. [ 55.423400][ T536] name failslab, interval 1, probability 0, space 0, times 0 [ 55.436194][ T536] CPU: 0 PID: 536 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 55.447807][ T536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.457843][ T536] Call Trace: [ 55.461110][ T536] dump_stack_lvl+0x1e2/0x24b [ 55.465768][ T536] ? bfq_pos_tree_add_move+0x43e/0x43e [ 55.471203][ T536] ? find_next_bit+0xd6/0x120 [ 55.475861][ T536] ? cpumask_next+0x11/0x30 [ 55.480345][ T536] dump_stack+0x15/0x17 [ 55.484477][ T536] should_fail+0x3c0/0x510 [ 55.488876][ T536] ? percpu_ref_init+0xd0/0x330 [ 55.493707][ T536] __should_failslab+0x9f/0xe0 [ 55.498446][ T536] should_failslab+0x9/0x20 [ 55.502924][ T536] kmem_cache_alloc_trace+0x3a/0x330 [ 55.508184][ T536] percpu_ref_init+0xd0/0x330 [ 55.513278][ T536] ? cgroup_setup_root+0xea0/0xea0 [ 55.518392][ T536] cgroup_apply_control_enable+0x734/0x12e0 [ 55.524364][ T536] cgroup_apply_control+0x93/0x710 [ 55.529461][ T536] ? css_next_child+0x160/0x160 [ 55.534298][ T536] ? dequeue_task_fair+0x7ad/0xb50 [ 55.539383][ T536] ? io_schedule+0x120/0x120 [ 55.543966][ T536] ? kernfs_fop_write_iter+0x15e/0x410 [ 55.549439][ T536] ? __kasan_check_write+0x14/0x20 [ 55.554530][ T536] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 55.559792][ T536] cgroup_subtree_control_write+0xd19/0x1310 [ 55.565827][ T536] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.571800][ T536] ? __kasan_check_write+0x14/0x20 [ 55.576913][ T536] ? _copy_from_iter+0x3fb/0xd60 [ 55.581847][ T536] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 55.587803][ T536] cgroup_file_write+0x28e/0x590 [ 55.592731][ T536] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.597816][ T536] ? mutex_lock+0xa6/0x110 [ 55.602234][ T536] ? mutex_trylock+0xb0/0xb0 [ 55.606805][ T536] ? __kasan_check_write+0x14/0x20 [ 55.611891][ T536] kernfs_fop_write_iter+0x2d0/0x410 [ 55.617152][ T536] ? cgroup_seqfile_stop+0xc0/0xc0 [ 55.622239][ T536] vfs_write+0xc1c/0xf40 [ 55.626552][ T536] ? kernel_write+0x3c0/0x3c0 [ 55.631303][ T536] ? mutex_trylock+0xb0/0xb0 [ 55.635981][ T536] ? __fdget_pos+0x26d/0x310 [ 55.640641][ T536] ? ksys_write+0x77/0x2c0 [ 55.645038][ T536] ksys_write+0x198/0x2c0 [ 55.649865][ T536] ? __ia32_sys_read+0x90/0x90 [ 55.654630][ T536] ? debug_smp_processor_id+0x17/0x20 [ 55.659976][ T536] __x64_sys_write+0x7b/0x90 [ 55.664547][ T536] do_syscall_64+0x34/0x70 [ 55.668955][ T536] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.675015][ T536] RIP: 0033:0x7fb14d3820e9 [ 55.679409][ T536] 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 [ 55.699001][ T536] RSP: 002b:00007fb14d2d7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 55.707417][ T536] RAX: ffffffffffffffda RBX: 00007fb14d495030 RCX: 00007fb14d3820e9 [ 55.715474][ T536] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 55.723719][ T536] RBP: 00007fb14d2d71d0 R08: 0000000000000000 R09: 0000000000000000 [ 55.731689][ T536] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 55.739732][ T536] R13: 00007ffc3daf25ff R14: 00007fb14d2d7300 R15: 0000000000022000 [ 55.750407][ T536] !!!! css_create rcu_enqueue(ffff88811309f400) !!!! [ 55.757210][ T536] !!!! control_disable kill_css(ffff8881f738c000) [ 55.763912][ T536] !!!! control_disable kill_css(ffff88811308f800) [ 55.770669][ T536] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 55.779252][ T416] ------------[ cut here ]------------ [ 55.784731][ T416] WARNING: CPU: 0 PID: 416 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 55.793728][ C0] !!!! css_killed_ref_fn enqueue(ffff8881f738c000) [ 55.793745][ C0] ------------[ cut here ]------------ [ 55.793757][ C0] percpu ref (css_release) <= 0 (0) after switching to atomic [ 55.793852][ C0] WARNING: CPU: 0 PID: 416 at lib/percpu-refcount.c:196 percpu_ref_switch_to_atomic_rcu+0x505/0x5b0 [ 55.793854][ C0] Modules linked in: [ 55.793875][ C0] CPU: 0 PID: 416 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 55.793885][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.793900][ C0] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x505/0x5b0 [ 55.793913][ C0] 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 e0 bb 43 85 48 89 de 31 c0 e8 5b 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 [ 55.793925][ C0] RSP: 0018:ffffc90000007c08 EFLAGS: 00010246 [ 55.793936][ C0] RAX: ddec7ce79c042d00 RBX: ffffffff81647a50 RCX: ffff88810658e2c0 [ 55.793943][ C0] RDX: 0000000000000102 RSI: 0000000000000102 RDI: 0000000000000000 [ 55.793955][ C0] RBP: ffffc90000007c50 R08: ffffffff8153b2f8 R09: 0000000000000003 [ 55.793967][ C0] R10: fffff52000000f21 R11: 1ffff92000000f20 R12: 7fffffffffffffff [ 55.793979][ C0] R13: ffff88811256d700 R14: 1ffff110224adae0 R15: ffff88811256d720 [ 55.793992][ C0] FS: 00005555572dd400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 55.794005][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.794013][ C0] CR2: 00007ffc3daf0f88 CR3: 0000000119e80000 CR4: 00000000003506b0 [ 55.794022][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.794028][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.794031][ C0] Call Trace: [ 55.794035][ C0] [ 55.794048][ C0] ? percpu_ref_noop_confirm_switch+0x10/0x10 [ 55.794059][ C0] rcu_do_batch+0x4f8/0xbc0 [ 55.794072][ C0] ? local_bh_enable+0x20/0x20 [ 55.794081][ C0] ? note_gp_changes+0x158/0x260 [ 55.794092][ C0] ? update_load_avg+0x4e7/0xa90 [ 55.794101][ C0] rcu_core+0x59b/0xe30 [ 55.794111][ C0] ? rcu_cpu_kthread_park+0x90/0x90 [ 55.794121][ C0] rcu_core_si+0x9/0x10 [ 55.794130][ C0] __do_softirq+0x27e/0x596 [ 55.794140][ C0] asm_call_irq_on_stack+0xf/0x20 [ 55.794143][ C0] [ 55.794153][ C0] do_softirq_own_stack+0x60/0x80 [ 55.794163][ C0] __irq_exit_rcu+0x128/0x150 [ 55.794170][ C0] irq_exit_rcu+0x9/0x10 [ 55.794179][ C0] sysvec_apic_timer_interrupt+0xbf/0xe0 [ 55.794188][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 55.794199][ C0] RIP: 0010:console_unlock+0xb5c/0xf20 [ 55.794208][ C0] 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 00 d1 52 00 48 c7 [ 55.794213][ C0] RSP: 0018:ffffc90000f17600 EFLAGS: 00000246 [ 55.794220][ C0] RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff88810658e2c0 [ 55.794224][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 55.794228][ C0] RBP: ffffc90000f17890 R08: ffffffff8153ae3b R09: 0000000000000003 [ 55.794232][ C0] R10: fffff520001e2eb1 R11: 1ffff920001e2eb0 R12: ffffc90000f17800 [ 55.794236][ C0] R13: 1ffffffff0c3adb9 R14: ffffc90000f17760 R15: dffffc0000000000 [ 55.794243][ C0] ? console_unlock+0xb1b/0xf20 [ 55.794251][ C0] ? memcpy+0x56/0x70 [ 55.794256][ C0] ? __kasan_check_write+0x14/0x20 [ 55.794261][ C0] ? _raw_spin_lock_irqsave+0xf8/0x210 [ 55.794267][ C0] ? vprintk_emit+0x640/0x640 [ 55.794271][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 55.794278][ C0] ? vsnprintf+0x1fa/0x1cd0 [ 55.794283][ C0] ? memcpy+0x56/0x70 [ 55.794288][ C0] ? vsnprintf+0x1bfd/0x1cd0 [ 55.794293][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 55.794299][ C0] ? resume_console+0x50/0x50 [ 55.794303][ C0] ? _raw_spin_lock+0xa3/0x1b0 [ 55.794309][ C0] vprintk_emit+0x44b/0x640 [ 55.794315][ C0] ? log_output+0x4d0/0x4d0 [ 55.794320][ C0] ? vprintk_emit+0x58c/0x640 [ 55.794325][ C0] ? log_output+0x4d0/0x4d0 [ 55.794331][ C0] vprintk_default+0x26/0x30 [ 55.794343][ C0] vprintk_func+0x19d/0x1e0 [ 55.794348][ C0] printk+0xcf/0x10f [ 55.794355][ C0] ? mntput_no_expire+0x48a/0x6c0 [ 55.794359][ C0] ? panic+0x7d7/0x7d7 [ 55.794364][ C0] ? printk+0xcf/0x10f [ 55.794369][ C0] ? report_bug+0x3c0/0x580 [ 55.794374][ C0] ? panic+0x7d7/0x7d7 [ 55.794378][ C0] __warn+0xe6/0x260 [ 55.794384][ C0] ? mntput_no_expire+0x48a/0x6c0 [ 55.794389][ C0] report_bug+0x410/0x580 [ 55.794394][ C0] ? mntput_no_expire+0x48a/0x6c0 [ 55.794399][ C0] handle_bug+0x41/0x70 [ 55.794404][ C0] exc_invalid_op+0x1b/0x50 [ 55.794409][ C0] asm_exc_invalid_op+0x12/0x20 [ 55.794414][ C0] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 55.794420][ C0] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 55.794423][ C0] RSP: 0018:ffffc90000f17ca0 EFLAGS: 00010293 [ 55.794428][ C0] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810658e2c0 [ 55.794432][ C0] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 55.794436][ C0] RBP: ffffc90000f17d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 55.794440][ C0] R10: fffff520001e2f85 R11: 1ffff920001e2f84 R12: dffffc0000000000 [ 55.794444][ C0] R13: ffff8881114f2a80 R14: ffffc90000f17d00 R15: 1ffff920001e2f9c [ 55.794450][ C0] ? mntput_no_expire+0x178/0x6c0 [ 55.794455][ C0] ? mntput_no_expire+0x48a/0x6c0 [ 55.794462][ C0] ? lockref_get_or_lock+0x340/0x340 [ 55.794467][ C0] ? umount_tree+0xf50/0xf50 [ 55.794472][ C0] ? vfs_submount+0xb0/0xb0 [ 55.794478][ C0] ? dput+0x2b6/0x320 [ 55.794483][ C0] path_umount+0x1fe/0xfb0 [ 55.794489][ C0] ? namespace_unlock+0x4f0/0x4f0 [ 55.794495][ C0] ? user_path_at_empty+0x40/0x50 [ 55.794501][ C0] __x64_sys_umount+0x122/0x170 [ 55.794506][ C0] ? path_umount+0xfb0/0xfb0 [ 55.794510][ C0] ? debug_smp_processor_id+0x17/0x20 [ 55.794516][ C0] do_syscall_64+0x34/0x70 [ 55.794521][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.794525][ C0] RIP: 0033:0x7fb14d383557 [ 55.794531][ C0] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 55.794535][ C0] RSP: 002b:00007ffc3daf1758 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 55.794541][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb14d383557 [ 55.794545][ C0] RDX: 00007ffc3daf1829 RSI: 000000000000000a RDI: 00007ffc3daf1820 [ 55.794549][ C0] RBP: 00007ffc3daf1820 R08: 00000000ffffffff R09: 00007ffc3daf15f0 [ 55.794552][ C0] R10: 00005555572deba3 R11: 0000000000000246 R12: 00007fb14d3db1f8 [ 55.794556][ C0] R13: 00007ffc3daf28e0 R14: 00005555572deb00 R15: 00007ffc3daf2920 [ 55.794560][ C0] ---[ end trace eb0090bb59c3f92f ]--- [ 55.794565][ C0] !!!! css_killed_ref_fn enqueue(ffff88811308f800) [ 56.484255][ T416] Modules linked in: [ 56.488175][ T416] CPU: 0 PID: 416 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 56.499726][ T416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.509796][ T416] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 56.515426][ T416] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 56.535048][ T416] RSP: 0018:ffffc90000f17ca0 EFLAGS: 00010293 [ 56.541115][ T416] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810658e2c0 [ 56.549092][ T416] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 56.557066][ T416] RBP: ffffc90000f17d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 56.565050][ T416] R10: fffff520001e2f85 R11: 1ffff920001e2f84 R12: dffffc0000000000 [ 56.573064][ T416] R13: ffff8881114f2a80 R14: ffffc90000f17d00 R15: 1ffff920001e2f9c [ 56.581060][ T416] FS: 00005555572dd400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 56.590072][ T416] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.596655][ T416] CR2: 00007ffc3daf0f88 CR3: 0000000119e80000 CR4: 00000000003506b0 [ 56.605047][ T416] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.613028][ T416] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.620994][ T416] Call Trace: [ 56.624273][ T416] ? lockref_get_or_lock+0x340/0x340 [ 56.629555][ T416] ? umount_tree+0xf50/0xf50 [ 56.634128][ T416] ? vfs_submount+0xb0/0xb0 [ 56.638649][ T416] ? dput+0x2b6/0x320 [ 56.642613][ T416] path_umount+0x1fe/0xfb0 [ 56.647064][ T416] ? namespace_unlock+0x4f0/0x4f0 [ 56.652074][ T416] ? user_path_at_empty+0x40/0x50 [ 56.657127][ T416] __x64_sys_umount+0x122/0x170 [ 56.661960][ T416] ? path_umount+0xfb0/0xfb0 [ 56.666670][ T416] ? debug_smp_processor_id+0x17/0x20 [ 56.672030][ T416] do_syscall_64+0x34/0x70 [ 56.676454][ T416] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.682327][ T416] RIP: 0033:0x7fb14d383557 [ 56.686743][ T416] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 56.706442][ T416] RSP: 002b:00007ffc3daf1758 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 56.714946][ T416] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb14d383557 [ 56.722951][ T416] RDX: 00007ffc3daf1829 RSI: 000000000000000a RDI: 00007ffc3daf1820 [ 56.730935][ T416] RBP: 00007ffc3daf1820 R08: 00000000ffffffff R09: 00007ffc3daf15f0 [ 56.738917][ T416] R10: 00005555572deba3 R11: 0000000000000246 R12: 00007fb14d3db1f8 [ 56.746896][ T416] R13: 00007ffc3daf28e0 R14: 00005555572deb00 R15: 00007ffc3daf2920 [ 56.754937][ T416] ---[ end trace eb0090bb59c3f930 ]--- [ 56.760457][ T416] ------------[ cut here ]------------ [ 56.761597][ T437] !!!! css_killed_work_fn css_put(ffff8881f738c000) [ 56.766201][ T416] WARNING: CPU: 1 PID: 416 at fs/namespace.c:1109 cleanup_mnt+0x4c5/0x510 [ 56.772726][ T437] !!!! css_release enqueue(ffff8881f738c000) [ 56.787486][ T23] audit: type=1400 audit(1654552307.129:161): avc: denied { unlink } for pid=143 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 [ 56.787614][ T125] !!!! css_killed_work_fn css_put(ffff88811308f800) [ 56.814637][ T416] Modules linked in: [ 56.816967][ T547] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.820609][ T416] CPU: 1 PID: 416 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 56.827083][ T545] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.827198][ T551] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 56.838745][ T548] !!!! css_create css ffff88811339e800 !!!! [ 56.845435][ T416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.852460][ T548] !!!! css_create css ffff88811339c800 !!!! [ 56.857707][ T416] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 56.867996][ T548] !!!! css_create css ffff88811339fc00 !!!! [ 56.873635][ T416] 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 d8 d9 5e 86 80 e1 07 80 c1 03 38 c1 [ 56.879160][ T548] FAULT_INJECTION: forcing a failure. [ 56.879160][ T548] name failslab, interval 1, probability 0, space 0, times 0 [ 56.884836][ T416] RSP: 0018:ffffc90000f17e30 EFLAGS: 00010293 [ 56.884848][ T416] RAX: ffffffff81b7a4d5 RBX: ffffe8ffffd43024 RCX: ffff88810658e2c0 [ 56.884854][ T416] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 56.884869][ T416] RBP: ffffc90000f17e80 R08: ffffffff81b7a1b3 R09: 0000000000000003 [ 56.905069][ T548] CPU: 1 PID: 548 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 56.917807][ T416] R10: fffff520001e2fc5 R11: 1ffff920001e2fc4 R12: ffff8881114f2ae8 [ 56.923247][ T548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.923251][ T548] Call Trace: [ 56.923267][ T548] dump_stack_lvl+0x1e2/0x24b [ 56.923283][ T548] ? bfq_pos_tree_add_move+0x43e/0x43e [ 56.931315][ T416] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 56.939201][ T548] dump_stack+0x15/0x17 [ 56.939210][ T548] should_fail+0x3c0/0x510 [ 56.939228][ T548] ? __kernfs_new_node+0x99/0x6e0 [ 56.947222][ T416] FS: 00005555572dd400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 56.958684][ T548] __should_failslab+0x9f/0xe0 [ 56.958695][ T548] should_failslab+0x9/0x20 [ 56.958713][ T548] __kmalloc_track_caller+0x5f/0x350 [ 56.966781][ T416] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.976790][ T548] kstrdup_const+0x55/0x90 [ 56.976800][ T548] __kernfs_new_node+0x99/0x6e0 [ 56.976815][ T548] ? stack_trace_save+0x1f0/0x1f0 [ 56.980098][ T416] CR2: 00007ffc3daf0f88 CR3: 0000000119e80000 CR4: 00000000003506b0 [ 56.984901][ T548] ? kernfs_new_node+0x170/0x170 [ 56.984911][ T548] ? ptr_to_hashval+0x60/0x60 [ 56.984927][ T548] ? snprintf+0xd6/0x120 [ 56.990392][ T416] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.998406][ T548] ? debug_smp_processor_id+0x17/0x20 [ 56.998415][ T548] kernfs_new_node+0x97/0x170 [ 56.998430][ T548] __kernfs_create_file+0x4a/0x270 [ 57.002572][ T416] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.007045][ T548] cgroup_addrm_files+0xab8/0xfe0 [ 57.007057][ T548] ? cgroup_apply_control_enable+0x734/0x12e0 [ 57.007065][ T548] ? cgroup_apply_control+0x93/0x710 [ 57.007073][ T548] ? cgroup_subtree_control_write+0xd19/0x1310 [ 57.007082][ T548] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 57.007090][ T548] ? delete_node+0x759/0x7b0 [ 57.007107][ T548] ? __kasan_check_read+0x11/0x20 [ 57.012426][ T416] Call Trace: [ 57.021026][ T548] ? delete_node+0x759/0x7b0 [ 57.021036][ T548] ? __kasan_check_write+0x14/0x20 [ 57.021045][ T548] ? __radix_tree_replace+0x246/0x2e0 [ 57.021056][ T548] ? idr_get_next+0x4b0/0x4b0 [ 57.021064][ T548] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 57.021072][ T548] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 57.021082][ T548] css_populate_dir+0x137/0x370 [ 57.021099][ T548] cgroup_apply_control_enable+0x629/0x12e0 [ 57.025906][ T416] __cleanup_mnt+0x19/0x20 [ 57.030322][ T548] cgroup_apply_control+0x93/0x710 [ 57.030338][ T548] ? css_next_child+0x160/0x160 [ 57.035644][ T416] task_work_run+0x147/0x1b0 [ 57.042156][ T548] ? dequeue_task_fair+0x7ad/0xb50 [ 57.042174][ T548] ? io_schedule+0x120/0x120 [ 57.046612][ T416] exit_to_user_mode_loop+0xc8/0xe0 [ 57.051391][ T548] ? kernfs_fop_write_iter+0x15e/0x410 [ 57.051409][ T548] ? __kasan_check_write+0x14/0x20 [ 57.056437][ T416] syscall_exit_to_user_mode+0x77/0xa0 [ 57.064355][ T548] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 57.064371][ T548] cgroup_subtree_control_write+0xd19/0x1310 [ 57.069348][ T416] do_syscall_64+0x40/0x70 [ 57.073945][ T548] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.073961][ T548] ? __kasan_check_write+0x14/0x20 [ 57.078382][ T416] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.086513][ T548] ? _copy_from_iter+0x3fb/0xd60 [ 57.086525][ T548] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.086533][ T548] cgroup_file_write+0x28e/0x590 [ 57.086543][ T548] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.086553][ T548] ? mutex_lock+0xa6/0x110 [ 57.086561][ T548] ? mutex_trylock+0xb0/0xb0 [ 57.086580][ T548] ? __kasan_check_write+0x14/0x20 [ 57.092008][ T416] RIP: 0033:0x7fb14d383557 [ 57.096624][ T548] kernfs_fop_write_iter+0x2d0/0x410 [ 57.096635][ T548] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.096644][ T548] vfs_write+0xc1c/0xf40 [ 57.096654][ T548] ? kernel_write+0x3c0/0x3c0 [ 57.096665][ T548] ? mutex_trylock+0xb0/0xb0 [ 57.096675][ T548] ? __fdget_pos+0x26d/0x310 [ 57.096682][ T548] ? ksys_write+0x77/0x2c0 [ 57.096703][ T548] ksys_write+0x198/0x2c0 [ 57.101841][ T416] 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 [ 57.110271][ T548] ? __ia32_sys_read+0x90/0x90 [ 57.110280][ T548] ? debug_smp_processor_id+0x17/0x20 [ 57.110289][ T548] __x64_sys_write+0x7b/0x90 [ 57.110299][ T548] do_syscall_64+0x34/0x70 [ 57.110308][ T548] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.110323][ T548] RIP: 0033:0x7f05b76700e9 [ 57.115362][ T416] RSP: 002b:00007ffc3daf1758 EFLAGS: 00000246 [ 57.121350][ 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 [ 57.121356][ T548] RSP: 002b:00007f05b75c5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 57.121369][ T548] RAX: ffffffffffffffda RBX: 00007f05b7783030 RCX: 00007f05b76700e9 [ 57.121382][ T548] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 57.126681][ T416] ORIG_RAX: 00000000000000a6 [ 57.132761][ T548] RBP: 00007f05b75c51d0 R08: 0000000000000000 R09: 0000000000000000 [ 57.132768][ T548] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 57.132781][ T548] R13: 00007fff27b047ef R14: 00007f05b75c5300 R15: 0000000000022000 [ 57.138943][ T416] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb14d383557 [ 57.144157][ T548] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 57.148906][ T416] RDX: 00007ffc3daf1829 RSI: 000000000000000a RDI: 00007ffc3daf1820 [ 57.152089][ T548] !!!! control_disable kill_css(ffff88811339e800) [ 57.156803][ T416] RBP: 00007ffc3daf1820 R08: 00000000ffffffff R09: 00007ffc3daf15f0 [ 57.161724][ T548] !!!! control_disable kill_css(ffff88811339c800) [ 57.167049][ T416] R10: 00005555572deba3 R11: 0000000000000246 R12: 00007fb14d3db1f8 [ 57.171817][ T548] !!!! control_disable kill_css(ffff88811339fc00) [ 57.178367][ T416] R13: 00007ffc3daf28e0 R14: 00005555572deb00 R15: 00007ffc3daf2920 [ 57.183418][ T548] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 57.188471][ T416] ---[ end trace eb0090bb59c3f931 ]--- [ 57.208477][ C1] !!!! css_killed_ref_fn enqueue(ffff88811339e800) [ 57.569179][ C1] !!!! css_killed_ref_fn enqueue(ffff88811339c800) [ 57.575803][ C1] !!!! css_killed_ref_fn enqueue(ffff88811339fc00) [ 57.582514][ T383] !!!! css_killed_work_fn css_put(ffff88811339e800) [ 57.589237][ T383] !!!! css_release enqueue(ffff88811339e800) [ 57.595390][ T383] !!!! css_killed_work_fn css_put(ffff88811339c800) [ 57.604586][ T383] !!!! css_release enqueue(ffff88811339c800) [ 57.615735][ T383] !!!! css_killed_work_fn css_put(ffff88811339fc00) [ 57.624124][ T383] !!!! css_release enqueue(ffff88811339fc00) [ 57.630652][ T539] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 57.635558][ T525] !!!! css_create css ffff888113358400 !!!! [ 57.643083][ T525] !!!! css_create css ffff88811335b800 !!!! [ 57.649307][ T525] !!!! css_create css ffff88811335ac00 !!!! [ 57.655226][ T525] FAULT_INJECTION: forcing a failure. [ 57.655226][ T525] name failslab, interval 1, probability 0, space 0, times 0 [ 57.667950][ T525] CPU: 1 PID: 525 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 57.679475][ T525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.689945][ T525] Call Trace: [ 57.693327][ T525] dump_stack_lvl+0x1e2/0x24b [ 57.697986][ T525] ? bfq_pos_tree_add_move+0x43e/0x43e [ 57.703436][ T525] ? find_next_bit+0xd6/0x120 [ 57.708092][ T525] ? cpumask_next+0x11/0x30 [ 57.712573][ T525] dump_stack+0x15/0x17 [ 57.716892][ T525] should_fail+0x3c0/0x510 [ 57.721330][ T525] ? percpu_ref_init+0xd0/0x330 [ 57.726245][ T525] __should_failslab+0x9f/0xe0 [ 57.730993][ T525] should_failslab+0x9/0x20 [ 57.735766][ T525] kmem_cache_alloc_trace+0x3a/0x330 [ 57.741041][ T525] percpu_ref_init+0xd0/0x330 [ 57.745699][ T525] ? cgroup_setup_root+0xea0/0xea0 [ 57.750906][ T525] cgroup_apply_control_enable+0x734/0x12e0 [ 57.756787][ T525] cgroup_apply_control+0x93/0x710 [ 57.761889][ T525] ? css_next_child+0x160/0x160 [ 57.766717][ T525] ? set_next_entity+0xc5/0x390 [ 57.771543][ T525] ? io_schedule+0x120/0x120 [ 57.776111][ T525] ? kernfs_fop_write_iter+0x15e/0x410 [ 57.781557][ T525] ? __kasan_check_write+0x14/0x20 [ 57.786648][ T525] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 57.791930][ T525] cgroup_subtree_control_write+0xd19/0x1310 [ 57.797893][ T525] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.803856][ T525] ? __kasan_check_write+0x14/0x20 [ 57.808948][ T525] ? _copy_from_iter+0x3fb/0xd60 [ 57.813862][ T525] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 57.819821][ T525] cgroup_file_write+0x28e/0x590 [ 57.824845][ T525] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.829947][ T525] ? mutex_lock+0xa6/0x110 [ 57.834349][ T525] ? mutex_trylock+0xb0/0xb0 [ 57.838943][ T525] ? __kasan_check_write+0x14/0x20 [ 57.844054][ T525] kernfs_fop_write_iter+0x2d0/0x410 [ 57.849384][ T525] ? cgroup_seqfile_stop+0xc0/0xc0 [ 57.854489][ T525] vfs_write+0xc1c/0xf40 [ 57.858727][ T525] ? kernel_write+0x3c0/0x3c0 [ 57.863390][ T525] ? mutex_trylock+0xb0/0xb0 [ 57.867963][ T525] ? __fdget_pos+0x26d/0x310 [ 57.872549][ T525] ? ksys_write+0x77/0x2c0 [ 57.876951][ T525] ksys_write+0x198/0x2c0 [ 57.881369][ T525] ? __ia32_sys_read+0x90/0x90 [ 57.886226][ T525] ? debug_smp_processor_id+0x17/0x20 [ 57.891583][ T525] __x64_sys_write+0x7b/0x90 [ 57.896157][ T525] do_syscall_64+0x34/0x70 [ 57.900553][ T525] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.906418][ T525] RIP: 0033:0x7fee9f29f0e9 [ 57.910821][ 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 [ 57.931797][ T525] RSP: 002b:00007fee9f1f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 57.940452][ T525] RAX: ffffffffffffffda RBX: 00007fee9f3b2030 RCX: 00007fee9f29f0e9 [ 57.948404][ T525] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 57.956438][ T525] RBP: 00007fee9f1f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 57.964407][ T525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 57.972373][ T525] R13: 00007fff0617897f R14: 00007fee9f1f4300 R15: 0000000000022000 [ 57.980866][ T525] !!!! css_create rcu_enqueue(ffff88811335ac00) !!!! [ 57.987656][ T525] !!!! control_disable kill_css(ffff888113358400) [ 57.994489][ T525] !!!! control_disable kill_css(ffff88811335b800) [ 58.001361][ T525] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 58.009354][ T418] ------------[ cut here ]------------ [ 58.014825][ T418] WARNING: CPU: 0 PID: 418 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 58.023793][ T418] Modules linked in: [ 58.027741][ C0] !!!! css_killed_ref_fn enqueue(ffff888113358400) [ 58.034325][ T418] CPU: 0 PID: 418 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 58.045863][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.056067][ T418] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 58.061924][ T418] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 58.081571][ T418] RSP: 0018:ffffc90000f37ba0 EFLAGS: 00010293 [ 58.087663][ T418] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810658a780 [ 58.095792][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 58.103890][ T418] RBP: ffffc90000f37c70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 58.111890][ T418] R10: fffff520001e6f65 R11: 1ffff920001e6f64 R12: dffffc0000000000 [ 58.119974][ T418] R13: ffff8881114f2000 R14: ffffc90000f37c00 R15: 1ffff920001e6f7c [ 58.127977][ T418] FS: 0000555556246400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 58.137114][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.143678][ T418] CR2: 00007fff06177afc CR3: 000000010bbca000 CR4: 00000000003506b0 [ 58.151669][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.160843][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.168842][ T418] Call Trace: [ 58.172135][ T418] ? io_schedule+0x120/0x120 [ 58.176757][ T418] ? vfs_submount+0xb0/0xb0 [ 58.181515][ T418] ? shrink_dentry_list+0x4ec/0x500 [ 58.186763][ T418] namespace_unlock+0x448/0x4f0 [ 58.191601][ T418] ? umount_tree+0xf50/0xf50 [ 58.196222][ T418] ? __detach_mounts+0x670/0x670 [ 58.201148][ T418] ? selinux_umount+0xf0/0x130 [ 58.205936][ T418] path_umount+0xf03/0xfb0 [ 58.210337][ T418] ? namespace_unlock+0x4f0/0x4f0 [ 58.215342][ T418] ? user_path_at_empty+0x40/0x50 [ 58.220382][ T418] __x64_sys_umount+0x122/0x170 [ 58.225308][ T418] ? path_umount+0xfb0/0xfb0 [ 58.229921][ T418] ? debug_smp_processor_id+0x17/0x20 [ 58.235278][ T418] do_syscall_64+0x34/0x70 [ 58.239716][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.245700][ T418] RIP: 0033:0x7fee9f2a0557 [ 58.250248][ 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 [ 58.270146][ T418] RSP: 002b:00007fff06177ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 58.278591][ T418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fee9f2a0557 [ 58.286594][ T418] RDX: 00007fff06177ba9 RSI: 000000000000000a RDI: 00007fff06177ba0 [ 58.294735][ T418] RBP: 00007fff06177ba0 R08: 00000000ffffffff R09: 00007fff06177970 [ 58.302871][ T418] R10: 0000555556247ba3 R11: 0000000000000246 R12: 00007fee9f2f81f8 [ 58.310878][ T418] R13: 00007fff06178c60 R14: 0000555556247b00 R15: 00007fff06178ca0 [ 58.318882][ T418] ---[ end trace eb0090bb59c3f932 ]--- [ 58.324492][ T418] ------------[ cut here ]------------ [ 58.324591][ T437] !!!! css_killed_work_fn css_put(ffff888113358400) [ 58.329994][ T418] WARNING: CPU: 1 PID: 418 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 58.329997][ T418] Modules linked in: [ 58.330018][ T418] CPU: 1 PID: 418 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 58.336956][ T437] !!!! css_release enqueue(ffff888113358400) [ 58.345630][ C0] !!!! css_killed_ref_fn enqueue(ffff88811335b800) [ 58.345637][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.345654][ T418] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 58.345664][ T418] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 58.345671][ T418] RSP: 0018:ffffc90000f37ca0 EFLAGS: 00010293 [ 58.345682][ T418] RAX: ffffffff81b68afa RBX: 00000000fffffffe RCX: ffff88810658a780 [ 58.345695][ T418] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 58.349907][ T437] !!!! css_killed_work_fn css_put(ffff88811335b800) [ 58.361103][ T418] RBP: ffffc90000f37d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 58.361111][ T418] R10: fffff520001e6f85 R11: 1ffff920001e6f84 R12: dffffc0000000000 [ 58.361117][ T418] R13: ffff8881114f2000 R14: ffffc90000f37d00 R15: 1ffff920001e6f9c [ 58.361126][ T418] FS: 0000555556246400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 58.361132][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.361138][ T418] CR2: 00007fff27b04a28 CR3: 000000010bbca000 CR4: 00000000003506a0 [ 58.361148][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.361155][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.361158][ T418] Call Trace: [ 58.361174][ T418] ? lockref_get_or_lock+0x340/0x340 [ 58.361183][ T418] ? umount_tree+0xf50/0xf50 [ 58.361199][ T418] ? vfs_submount+0xb0/0xb0 [ 58.368175][ T437] !!!! css_release enqueue(ffff88811335b800) [ 58.373820][ T418] ? dput+0x2b6/0x320 [ 58.373832][ T418] path_umount+0x1fe/0xfb0 [ 58.373849][ T418] ? namespace_unlock+0x4f0/0x4f0 [ 58.384232][ T557] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 58.389567][ T418] ? user_path_at_empty+0x40/0x50 [ 58.389577][ T418] __x64_sys_umount+0x122/0x170 [ 58.389586][ T418] ? path_umount+0xfb0/0xfb0 [ 58.389594][ T418] ? debug_smp_processor_id+0x17/0x20 [ 58.389611][ T418] do_syscall_64+0x34/0x70 [ 58.475614][ T558] !!!! css_create css ffff888113541000 !!!! [ 58.478205][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.491666][ T558] !!!! css_create css ffff888113540800 !!!! [ 58.494171][ T418] RIP: 0033:0x7fee9f2a0557 [ 58.494182][ 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 [ 58.494196][ T418] RSP: 002b:00007fff06177ad8 EFLAGS: 00000246 [ 58.514602][ T558] !!!! css_create css ffff888113543c00 !!!! [ 58.515748][ T418] ORIG_RAX: 00000000000000a6 [ 58.515756][ T418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fee9f2a0557 [ 58.515770][ T418] RDX: 00007fff06177ba9 RSI: 000000000000000a RDI: 00007fff06177ba0 [ 58.521553][ T558] FAULT_INJECTION: forcing a failure. [ 58.521553][ T558] name failslab, interval 1, probability 0, space 0, times 0 [ 58.526332][ T418] RBP: 00007fff06177ba0 R08: 00000000ffffffff R09: 00007fff06177970 [ 58.526340][ T418] R10: 0000555556247ba3 R11: 0000000000000246 R12: 00007fee9f2f81f8 [ 58.526353][ T418] R13: 00007fff06178c60 R14: 0000555556247b00 R15: 00007fff06178ca0 [ 58.535725][ T558] CPU: 0 PID: 558 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 58.539732][ T418] ---[ end trace eb0090bb59c3f933 ]--- [ 58.546188][ T558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.546192][ T558] Call Trace: [ 58.546216][ T558] dump_stack_lvl+0x1e2/0x24b [ 58.716226][ T558] ? bfq_pos_tree_add_move+0x43e/0x43e [ 58.721837][ T558] ? find_next_bit+0xd6/0x120 [ 58.726496][ T558] ? cpumask_next+0x11/0x30 [ 58.730981][ T558] dump_stack+0x15/0x17 [ 58.735122][ T558] should_fail+0x3c0/0x510 [ 58.739516][ T558] ? percpu_ref_init+0xd0/0x330 [ 58.744348][ T558] __should_failslab+0x9f/0xe0 [ 58.749107][ T558] should_failslab+0x9/0x20 [ 58.753601][ T558] kmem_cache_alloc_trace+0x3a/0x330 [ 58.758953][ T558] percpu_ref_init+0xd0/0x330 [ 58.763696][ T558] ? cgroup_setup_root+0xea0/0xea0 [ 58.768788][ T558] cgroup_apply_control_enable+0x734/0x12e0 [ 58.774666][ T558] cgroup_apply_control+0x93/0x710 [ 58.779758][ T558] ? css_next_child+0x160/0x160 [ 58.784675][ T558] ? set_next_entity+0xc5/0x390 [ 58.789615][ T558] ? io_schedule+0x120/0x120 [ 58.794283][ T558] ? kernfs_fop_write_iter+0x15e/0x410 [ 58.799755][ T558] ? __kasan_check_write+0x14/0x20 [ 58.804857][ T558] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 58.810136][ T558] cgroup_subtree_control_write+0xd19/0x1310 [ 58.816124][ T558] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 58.822110][ T558] ? __kasan_check_write+0x14/0x20 [ 58.827206][ T558] ? _copy_from_iter+0x3fb/0xd60 [ 58.832124][ T558] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 58.838171][ T558] cgroup_file_write+0x28e/0x590 [ 58.843087][ T558] ? cgroup_seqfile_stop+0xc0/0xc0 [ 58.848175][ T558] ? mutex_lock+0xa6/0x110 [ 58.852660][ T558] ? mutex_trylock+0xb0/0xb0 [ 58.857237][ T558] ? __kasan_check_write+0x14/0x20 [ 58.862376][ T558] kernfs_fop_write_iter+0x2d0/0x410 [ 58.867643][ T558] ? cgroup_seqfile_stop+0xc0/0xc0 [ 58.872733][ T558] vfs_write+0xc1c/0xf40 [ 58.877042][ T558] ? kernel_write+0x3c0/0x3c0 [ 58.881788][ T558] ? mutex_trylock+0xb0/0xb0 [ 58.886396][ T558] ? __fdget_pos+0x26d/0x310 [ 58.890992][ T558] ? ksys_write+0x77/0x2c0 [ 58.895497][ T558] ksys_write+0x198/0x2c0 [ 58.900008][ T558] ? __ia32_sys_read+0x90/0x90 [ 58.904764][ T558] ? debug_smp_processor_id+0x17/0x20 [ 58.910306][ T558] __x64_sys_write+0x7b/0x90 [ 58.914876][ T558] do_syscall_64+0x34/0x70 [ 58.919304][ T558] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.925191][ T558] RIP: 0033:0x7f05b76700e9 [ 58.929607][ T558] 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 [ 58.949718][ T558] RSP: 002b:00007f05b75c5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 58.958393][ T558] RAX: ffffffffffffffda RBX: 00007f05b7783030 RCX: 00007f05b76700e9 [ 58.966374][ T558] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 58.974328][ T558] RBP: 00007f05b75c51d0 R08: 0000000000000000 R09: 0000000000000000 [ 58.982282][ T558] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 58.990485][ T558] R13: 00007fff27b047ef R14: 00007f05b75c5300 R15: 0000000000022000 [ 59.005834][ T558] !!!! css_create rcu_enqueue(ffff888113543c00) !!!! [ 59.012650][ T558] !!!! control_disable kill_css(ffff888113541000) [ 59.019671][ T558] !!!! control_disable kill_css(ffff888113540800) [ 59.026479][ T558] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 59.065510][ C0] !!!! css_killed_ref_fn enqueue(ffff888113541000) [ 59.072316][ C0] !!!! css_killed_ref_fn enqueue(ffff888113540800) [ 59.078993][ T437] !!!! css_killed_work_fn css_put(ffff888113541000) [ 59.085951][ T437] !!!! css_release enqueue(ffff888113541000) [ 59.092226][ T125] !!!! css_killed_work_fn css_put(ffff888113540800) [ 59.099133][ T125] !!!! css_release enqueue(ffff888113540800) [ 59.105282][ T560] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 59.105303][ T562] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 59.112007][ T563] !!!! css_create css ffff8881134b5400 !!!! [ 59.124385][ T563] !!!! css_create css ffff8881134b4c00 !!!! [ 59.130370][ T563] !!!! css_create css ffff888110648c00 !!!! [ 59.136671][ T563] FAULT_INJECTION: forcing a failure. [ 59.136671][ T563] name failslab, interval 1, probability 0, space 0, times 0 [ 59.149443][ T563] CPU: 0 PID: 563 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 59.161045][ T563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.171269][ T563] Call Trace: [ 59.174550][ T563] dump_stack_lvl+0x1e2/0x24b [ 59.179205][ T563] ? bfq_pos_tree_add_move+0x43e/0x43e [ 59.184656][ T563] dump_stack+0x15/0x17 [ 59.188897][ T563] should_fail+0x3c0/0x510 [ 59.193386][ T563] ? __kernfs_new_node+0x99/0x6e0 [ 59.198392][ T563] __should_failslab+0x9f/0xe0 [ 59.203193][ T563] should_failslab+0x9/0x20 [ 59.207673][ T563] __kmalloc_track_caller+0x5f/0x350 [ 59.212949][ T563] kstrdup_const+0x55/0x90 [ 59.217426][ T563] __kernfs_new_node+0x99/0x6e0 [ 59.222254][ T563] ? stack_trace_save+0x1f0/0x1f0 [ 59.227253][ T563] ? kernfs_new_node+0x170/0x170 [ 59.232173][ T563] ? ptr_to_hashval+0x60/0x60 [ 59.236826][ T563] ? snprintf+0xd6/0x120 [ 59.241065][ T563] kernfs_new_node+0x97/0x170 [ 59.245717][ T563] __kernfs_create_file+0x4a/0x270 [ 59.250817][ T563] cgroup_addrm_files+0xab8/0xfe0 [ 59.255840][ T563] ? cgroup_apply_control_enable+0x734/0x12e0 [ 59.262057][ T563] ? cgroup_apply_control+0x93/0x710 [ 59.267406][ T563] ? cgroup_subtree_control_write+0xd19/0x1310 [ 59.273621][ T563] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 59.279848][ T563] ? delete_node+0x759/0x7b0 [ 59.284417][ T563] ? __kasan_check_read+0x11/0x20 [ 59.289447][ T563] ? delete_node+0x759/0x7b0 [ 59.294023][ T563] ? __kasan_check_write+0x14/0x20 [ 59.299147][ T563] ? __radix_tree_replace+0x246/0x2e0 [ 59.304503][ T563] ? idr_get_next+0x4b0/0x4b0 [ 59.309156][ T563] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 59.314159][ T563] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 59.319343][ T563] css_populate_dir+0x137/0x370 [ 59.324174][ T563] cgroup_apply_control_enable+0x629/0x12e0 [ 59.330046][ T563] cgroup_apply_control+0x93/0x710 [ 59.335231][ T563] ? css_next_child+0x160/0x160 [ 59.340065][ T563] ? set_next_entity+0xc5/0x390 [ 59.344919][ T563] ? io_schedule+0x120/0x120 [ 59.349502][ T563] ? kernfs_fop_write_iter+0x15e/0x410 [ 59.354948][ T563] ? __kasan_check_write+0x14/0x20 [ 59.360054][ T563] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 59.365321][ T563] cgroup_subtree_control_write+0xd19/0x1310 [ 59.371400][ T563] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.377376][ T563] ? __kasan_check_write+0x14/0x20 [ 59.382480][ T563] ? _copy_from_iter+0x3fb/0xd60 [ 59.387394][ T563] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.393369][ T563] cgroup_file_write+0x28e/0x590 [ 59.398301][ T563] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.403387][ T563] ? mutex_lock+0xa6/0x110 [ 59.407777][ T563] ? mutex_trylock+0xb0/0xb0 [ 59.412341][ T563] ? __kasan_check_write+0x14/0x20 [ 59.417438][ T563] kernfs_fop_write_iter+0x2d0/0x410 [ 59.422800][ T563] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.427916][ T563] vfs_write+0xc1c/0xf40 [ 59.432144][ T563] ? kernel_write+0x3c0/0x3c0 [ 59.436824][ T563] ? mutex_trylock+0xb0/0xb0 [ 59.441398][ T563] ? __fdget_pos+0x26d/0x310 [ 59.445981][ T563] ? ksys_write+0x77/0x2c0 [ 59.450480][ T563] ksys_write+0x198/0x2c0 [ 59.454809][ T563] ? __ia32_sys_read+0x90/0x90 [ 59.459600][ T563] ? debug_smp_processor_id+0x17/0x20 [ 59.464959][ T563] __x64_sys_write+0x7b/0x90 [ 59.469529][ T563] do_syscall_64+0x34/0x70 [ 59.473924][ T563] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.479817][ T563] RIP: 0033:0x7fee9f29f0e9 [ 59.484229][ T563] 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 [ 59.503999][ T563] RSP: 002b:00007fee9f1f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 59.512491][ T563] RAX: ffffffffffffffda RBX: 00007fee9f3b2030 RCX: 00007fee9f29f0e9 [ 59.520459][ T563] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 59.528446][ T563] RBP: 00007fee9f1f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 59.536394][ T563] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 59.544371][ T563] R13: 00007fff0617897f R14: 00007fee9f1f4300 R15: 0000000000022000 [ 59.554404][ T563] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 59.561619][ T563] !!!! control_disable kill_css(ffff8881134b5400) 2022/06/06 21:51:49 executed programs: 44 [ 59.568239][ T563] !!!! control_disable kill_css(ffff8881134b4c00) [ 59.574843][ T563] !!!! control_disable kill_css(ffff888110648c00) [ 59.581415][ T563] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 59.605505][ C1] !!!! css_killed_ref_fn enqueue(ffff8881134b5400) [ 59.612141][ C1] !!!! css_killed_ref_fn enqueue(ffff8881134b4c00) [ 59.618789][ T386] !!!! css_killed_work_fn css_put(ffff8881134b5400) [ 59.625503][ T386] !!!! css_release enqueue(ffff8881134b5400) [ 59.631603][ T386] !!!! css_killed_work_fn css_put(ffff8881134b4c00) [ 59.638285][ C1] !!!! css_killed_ref_fn enqueue(ffff888110648c00) [ 59.644986][ T386] !!!! css_release enqueue(ffff8881134b4c00) [ 59.651341][ T386] !!!! css_killed_work_fn css_put(ffff888110648c00) [ 59.658244][ T386] !!!! css_release enqueue(ffff888110648c00) [ 59.664334][ T554] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 59.664363][ T540] !!!! css_create css ffff8881131fec00 !!!! [ 59.677010][ T540] !!!! css_create css ffff8881134b5c00 !!!! [ 59.682996][ T540] !!!! css_create css ffff8881134b7000 !!!! [ 59.689081][ T540] FAULT_INJECTION: forcing a failure. [ 59.689081][ T540] name failslab, interval 1, probability 0, space 0, times 0 [ 59.701762][ T540] CPU: 0 PID: 540 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 59.713301][ T540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.723354][ T540] Call Trace: [ 59.726644][ T540] dump_stack_lvl+0x1e2/0x24b [ 59.731322][ T540] ? bfq_pos_tree_add_move+0x43e/0x43e [ 59.736848][ T540] ? find_next_bit+0xd6/0x120 [ 59.741517][ T540] ? cpumask_next+0x11/0x30 [ 59.746049][ T540] dump_stack+0x15/0x17 [ 59.750181][ T540] should_fail+0x3c0/0x510 [ 59.754569][ T540] ? percpu_ref_init+0xd0/0x330 [ 59.759395][ T540] __should_failslab+0x9f/0xe0 [ 59.764377][ T540] should_failslab+0x9/0x20 [ 59.769013][ T540] kmem_cache_alloc_trace+0x3a/0x330 [ 59.774605][ T540] percpu_ref_init+0xd0/0x330 [ 59.779643][ T540] ? cgroup_setup_root+0xea0/0xea0 [ 59.784844][ T540] cgroup_apply_control_enable+0x734/0x12e0 [ 59.790896][ T540] cgroup_apply_control+0x93/0x710 [ 59.796008][ T540] ? css_next_child+0x160/0x160 [ 59.800845][ T540] ? io_schedule+0x120/0x120 [ 59.805422][ T540] ? kernfs_fop_write_iter+0x15e/0x410 [ 59.810858][ T540] ? __kasan_check_write+0x14/0x20 [ 59.815955][ T540] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 59.821217][ T540] cgroup_subtree_control_write+0xd19/0x1310 [ 59.827525][ T540] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.833513][ T540] ? __kasan_check_write+0x14/0x20 [ 59.838621][ T540] ? _copy_from_iter+0x3fb/0xd60 [ 59.843539][ T540] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 59.849494][ T540] cgroup_file_write+0x28e/0x590 [ 59.854424][ T540] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.859520][ T540] ? mutex_lock+0xa6/0x110 [ 59.863925][ T540] ? mutex_trylock+0xb0/0xb0 [ 59.868510][ T540] ? __kasan_check_write+0x14/0x20 [ 59.873595][ T540] kernfs_fop_write_iter+0x2d0/0x410 [ 59.878966][ T540] ? cgroup_seqfile_stop+0xc0/0xc0 [ 59.884059][ T540] vfs_write+0xc1c/0xf40 [ 59.888298][ T540] ? kernel_write+0x3c0/0x3c0 [ 59.893072][ T540] ? mutex_trylock+0xb0/0xb0 [ 59.897649][ T540] ? __fdget_pos+0x26d/0x310 [ 59.902215][ T540] ? ksys_write+0x77/0x2c0 [ 59.906621][ T540] ksys_write+0x198/0x2c0 [ 59.910946][ T540] ? __ia32_sys_read+0x90/0x90 [ 59.915699][ T540] ? debug_smp_processor_id+0x17/0x20 [ 59.921061][ T540] __x64_sys_write+0x7b/0x90 [ 59.925647][ T540] do_syscall_64+0x34/0x70 [ 59.930158][ T540] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.936037][ T540] RIP: 0033:0x7f210270a0e9 [ 59.940442][ 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 [ 59.960140][ T540] RSP: 002b:00007f210265f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 59.968546][ T540] RAX: ffffffffffffffda RBX: 00007f210281d030 RCX: 00007f210270a0e9 [ 59.976713][ T540] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 59.984781][ T540] RBP: 00007f210265f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 59.992751][ T540] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 60.000718][ T540] R13: 00007ffff3aad91f R14: 00007f210265f300 R15: 0000000000022000 [ 60.008968][ T540] !!!! css_create rcu_enqueue(ffff8881134b7000) !!!! [ 60.015733][ T540] !!!! control_disable kill_css(ffff8881131fec00) [ 60.022471][ T540] !!!! control_disable kill_css(ffff8881134b5c00) [ 60.029595][ T540] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 60.055522][ C0] !!!! css_killed_ref_fn enqueue(ffff8881131fec00) [ 60.062195][ C0] !!!! css_killed_ref_fn enqueue(ffff8881134b5c00) [ 60.068902][ T437] !!!! css_killed_work_fn css_put(ffff8881131fec00) [ 60.075928][ T437] !!!! css_release enqueue(ffff8881131fec00) [ 60.082121][ T437] !!!! css_killed_work_fn css_put(ffff8881134b5c00) [ 60.088988][ T569] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 60.089047][ T552] !!!! css_create css ffff8881131fd800 !!!! [ 60.101516][ T552] !!!! css_create css ffff8881131fe800 !!!! [ 60.107623][ T552] !!!! css_create css ffff88811348ac00 !!!! [ 60.113560][ T552] FAULT_INJECTION: forcing a failure. [ 60.113560][ T552] name failslab, interval 1, probability 0, space 0, times 0 [ 60.126407][ T552] CPU: 0 PID: 552 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 60.137950][ T552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.148165][ T552] Call Trace: [ 60.151446][ T552] dump_stack_lvl+0x1e2/0x24b [ 60.156140][ T552] ? bfq_pos_tree_add_move+0x43e/0x43e [ 60.161618][ T552] ? find_next_bit+0xd6/0x120 [ 60.166283][ T552] ? cpumask_next+0x11/0x30 [ 60.170770][ T552] dump_stack+0x15/0x17 [ 60.174911][ T552] should_fail+0x3c0/0x510 [ 60.179310][ T552] ? percpu_ref_init+0xd0/0x330 [ 60.184163][ T552] __should_failslab+0x9f/0xe0 [ 60.188911][ T552] should_failslab+0x9/0x20 [ 60.193543][ T552] kmem_cache_alloc_trace+0x3a/0x330 [ 60.198893][ T552] percpu_ref_init+0xd0/0x330 [ 60.203630][ T552] ? cgroup_setup_root+0xea0/0xea0 [ 60.208734][ T552] cgroup_apply_control_enable+0x734/0x12e0 [ 60.214615][ T552] cgroup_apply_control+0x93/0x710 [ 60.219725][ T552] ? css_next_child+0x160/0x160 [ 60.224562][ T552] ? set_next_entity+0xc5/0x390 [ 60.229403][ T552] ? io_schedule+0x120/0x120 [ 60.233976][ T552] ? kernfs_fop_write_iter+0x15e/0x410 [ 60.239511][ T552] ? __kasan_check_write+0x14/0x20 [ 60.244604][ T552] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 60.249878][ T552] cgroup_subtree_control_write+0xd19/0x1310 [ 60.256078][ T552] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 60.262078][ T552] ? __kasan_check_write+0x14/0x20 [ 60.267396][ T552] ? _copy_from_iter+0x3fb/0xd60 [ 60.272315][ T552] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 60.278375][ T552] cgroup_file_write+0x28e/0x590 [ 60.283322][ T552] ? cgroup_seqfile_stop+0xc0/0xc0 [ 60.288422][ T552] ? mutex_lock+0xa6/0x110 [ 60.292820][ T552] ? mutex_trylock+0xb0/0xb0 [ 60.297415][ T552] ? __kasan_check_write+0x14/0x20 [ 60.302605][ T552] kernfs_fop_write_iter+0x2d0/0x410 [ 60.308026][ T552] ? cgroup_seqfile_stop+0xc0/0xc0 [ 60.313267][ T552] vfs_write+0xc1c/0xf40 [ 60.317514][ T552] ? kernel_write+0x3c0/0x3c0 [ 60.322169][ T552] ? mutex_trylock+0xb0/0xb0 [ 60.327012][ T552] ? __fdget_pos+0x26d/0x310 [ 60.331602][ T552] ? ksys_write+0x77/0x2c0 [ 60.336000][ T552] ksys_write+0x198/0x2c0 [ 60.340326][ T552] ? __ia32_sys_read+0x90/0x90 [ 60.345158][ T552] ? debug_smp_processor_id+0x17/0x20 [ 60.350525][ T552] __x64_sys_write+0x7b/0x90 [ 60.355119][ T552] do_syscall_64+0x34/0x70 [ 60.359520][ T552] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.365416][ T552] RIP: 0033:0x7f1d047a10e9 [ 60.369814][ T552] 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 [ 60.394834][ T552] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 60.403525][ T552] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 60.411509][ T552] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 60.419463][ T552] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 60.427413][ T552] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 60.435383][ T552] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 60.443633][ T552] !!!! css_create rcu_enqueue(ffff88811348ac00) !!!! [ 60.450636][ T552] !!!! control_disable kill_css(ffff8881131fd800) [ 60.457239][ T552] !!!! control_disable kill_css(ffff8881131fe800) [ 60.463977][ T552] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 60.495538][ C0] !!!! css_killed_ref_fn enqueue(ffff8881131fd800) [ 60.502191][ C0] !!!! css_killed_ref_fn enqueue(ffff8881131fe800) [ 60.508899][ T437] !!!! css_killed_work_fn css_put(ffff8881131fd800) [ 60.515904][ T437] !!!! css_release enqueue(ffff8881131fd800) [ 60.522007][ T437] !!!! css_killed_work_fn css_put(ffff8881131fe800) [ 60.528964][ T437] !!!! css_release enqueue(ffff8881131fe800) [ 60.535177][ T564] !!!! css_create css ffff8881139ef800 !!!! [ 60.541197][ T564] !!!! css_create css ffff8881139eec00 !!!! [ 60.547384][ T564] !!!! css_create css ffff888113a85400 !!!! [ 60.553379][ T564] FAULT_INJECTION: forcing a failure. [ 60.553379][ T564] name failslab, interval 1, probability 0, space 0, times 0 [ 60.566321][ T564] CPU: 1 PID: 564 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 60.578059][ T564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.588126][ T564] Call Trace: [ 60.591402][ T564] dump_stack_lvl+0x1e2/0x24b [ 60.596057][ T564] ? bfq_pos_tree_add_move+0x43e/0x43e [ 60.601495][ T564] ? find_next_bit+0xd6/0x120 [ 60.606328][ T564] ? cpumask_next+0x11/0x30 [ 60.610831][ T564] dump_stack+0x15/0x17 [ 60.614967][ T564] should_fail+0x3c0/0x510 [ 60.619378][ T564] ? percpu_ref_init+0xd0/0x330 [ 60.624213][ T564] __should_failslab+0x9f/0xe0 [ 60.629219][ T564] should_failslab+0x9/0x20 [ 60.633714][ T564] kmem_cache_alloc_trace+0x3a/0x330 [ 60.638982][ T564] percpu_ref_init+0xd0/0x330 [ 60.643735][ T564] ? cgroup_setup_root+0xea0/0xea0 [ 60.648853][ T564] cgroup_apply_control_enable+0x734/0x12e0 [ 60.654745][ T564] cgroup_apply_control+0x93/0x710 [ 60.659853][ T564] ? css_next_child+0x160/0x160 [ 60.664686][ T564] ? dequeue_task_fair+0x7ad/0xb50 [ 60.669782][ T564] ? io_schedule+0x120/0x120 [ 60.674355][ T564] ? kernfs_fop_write_iter+0x15e/0x410 [ 60.679796][ T564] ? __kasan_check_write+0x14/0x20 [ 60.684950][ T564] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 60.690317][ T564] cgroup_subtree_control_write+0xd19/0x1310 [ 60.696285][ T564] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 60.702268][ T564] ? __kasan_check_write+0x14/0x20 [ 60.707370][ T564] ? _copy_from_iter+0x3fb/0xd60 [ 60.712297][ T564] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 60.718570][ T564] cgroup_file_write+0x28e/0x590 [ 60.723604][ T564] ? cgroup_seqfile_stop+0xc0/0xc0 [ 60.728708][ T564] ? mutex_lock+0xa6/0x110 [ 60.733238][ T564] ? mutex_trylock+0xb0/0xb0 [ 60.737812][ T564] ? __kasan_check_write+0x14/0x20 [ 60.743025][ T564] kernfs_fop_write_iter+0x2d0/0x410 [ 60.748298][ T564] ? cgroup_seqfile_stop+0xc0/0xc0 [ 60.753511][ T564] vfs_write+0xc1c/0xf40 [ 60.757738][ T564] ? kernel_write+0x3c0/0x3c0 [ 60.762398][ T564] ? mutex_trylock+0xb0/0xb0 [ 60.766973][ T564] ? __fdget_pos+0x26d/0x310 [ 60.771897][ T564] ? ksys_write+0x77/0x2c0 [ 60.776321][ T564] ksys_write+0x198/0x2c0 [ 60.780641][ T564] ? __ia32_sys_read+0x90/0x90 [ 60.785501][ T564] ? debug_smp_processor_id+0x17/0x20 [ 60.790888][ T564] __x64_sys_write+0x7b/0x90 [ 60.795471][ T564] do_syscall_64+0x34/0x70 [ 60.799898][ T564] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.805859][ T564] RIP: 0033:0x7f05b76700e9 [ 60.810362][ T564] 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 [ 60.829963][ T564] RSP: 002b:00007f05b75c5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 60.838464][ T564] RAX: ffffffffffffffda RBX: 00007f05b7783030 RCX: 00007f05b76700e9 [ 60.846416][ T564] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 60.854371][ T564] RBP: 00007f05b75c51d0 R08: 0000000000000000 R09: 0000000000000000 [ 60.862326][ T564] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 60.870289][ T564] R13: 00007fff27b047ef R14: 00007f05b75c5300 R15: 0000000000022000 [ 60.883870][ T564] !!!! css_create rcu_enqueue(ffff888113a85400) !!!! [ 60.890648][ T564] !!!! control_disable kill_css(ffff8881139ef800) [ 60.897527][ T564] !!!! control_disable kill_css(ffff8881139eec00) [ 60.904113][ T564] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 60.925585][ C0] !!!! css_killed_ref_fn enqueue(ffff8881139ef800) [ 60.933022][ C0] !!!! css_killed_ref_fn enqueue(ffff8881139eec00) [ 60.939841][ T437] !!!! css_killed_work_fn css_put(ffff8881139ef800) [ 60.946640][ T437] !!!! css_release enqueue(ffff8881139ef800) [ 60.952957][ T437] !!!! css_killed_work_fn css_put(ffff8881139eec00) [ 60.959777][ T572] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 60.959876][ T566] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 60.966674][ T570] !!!! css_create css ffff888113522400 !!!! [ 60.979331][ T570] !!!! css_create css ffff888113521000 !!!! [ 60.985431][ T570] !!!! css_create css ffff888113520c00 !!!! [ 60.991626][ T570] FAULT_INJECTION: forcing a failure. [ 60.991626][ T570] name failslab, interval 1, probability 0, space 0, times 0 [ 61.004397][ T570] CPU: 0 PID: 570 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 61.015920][ T570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.025952][ T570] Call Trace: [ 61.029229][ T570] dump_stack_lvl+0x1e2/0x24b [ 61.033884][ T570] ? bfq_pos_tree_add_move+0x43e/0x43e [ 61.039318][ T570] ? find_next_bit+0xd6/0x120 [ 61.044009][ T570] ? cpumask_next+0x11/0x30 [ 61.048499][ T570] dump_stack+0x15/0x17 [ 61.052631][ T570] should_fail+0x3c0/0x510 [ 61.057068][ T570] ? percpu_ref_init+0xd0/0x330 [ 61.062084][ T570] __should_failslab+0x9f/0xe0 [ 61.066840][ T570] should_failslab+0x9/0x20 [ 61.071333][ T570] kmem_cache_alloc_trace+0x3a/0x330 [ 61.076682][ T570] percpu_ref_init+0xd0/0x330 [ 61.081341][ T570] ? cgroup_setup_root+0xea0/0xea0 [ 61.086433][ T570] cgroup_apply_control_enable+0x734/0x12e0 [ 61.092305][ T570] cgroup_apply_control+0x93/0x710 [ 61.097652][ T570] ? css_next_child+0x160/0x160 [ 61.102489][ T570] ? io_schedule+0x120/0x120 [ 61.107145][ T570] ? kernfs_fop_write_iter+0x15e/0x410 [ 61.112580][ T570] ? __kasan_check_write+0x14/0x20 [ 61.117671][ T570] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 61.122942][ T570] cgroup_subtree_control_write+0xd19/0x1310 [ 61.128914][ T570] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 61.135016][ T570] ? __kasan_check_write+0x14/0x20 [ 61.140187][ T570] ? _copy_from_iter+0x3fb/0xd60 [ 61.145099][ T570] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 61.151059][ T570] cgroup_file_write+0x28e/0x590 [ 61.155973][ T570] ? cgroup_seqfile_stop+0xc0/0xc0 [ 61.161111][ T570] ? mutex_lock+0xa6/0x110 [ 61.165503][ T570] ? mutex_trylock+0xb0/0xb0 [ 61.170066][ T570] ? __kasan_check_write+0x14/0x20 [ 61.175257][ T570] kernfs_fop_write_iter+0x2d0/0x410 [ 61.180600][ T570] ? cgroup_seqfile_stop+0xc0/0xc0 [ 61.185682][ T570] vfs_write+0xc1c/0xf40 [ 61.189898][ T570] ? kernel_write+0x3c0/0x3c0 [ 61.194557][ T570] ? mutex_trylock+0xb0/0xb0 [ 61.199206][ T570] ? __fdget_pos+0x26d/0x310 [ 61.203782][ T570] ? ksys_write+0x77/0x2c0 [ 61.208181][ T570] ksys_write+0x198/0x2c0 [ 61.213373][ T570] ? __ia32_sys_read+0x90/0x90 [ 61.218309][ T570] ? debug_smp_processor_id+0x17/0x20 [ 61.223661][ T570] __x64_sys_write+0x7b/0x90 [ 61.228237][ T570] do_syscall_64+0x34/0x70 [ 61.232658][ T570] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.238526][ T570] RIP: 0033:0x7f210270a0e9 [ 61.242949][ 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 [ 61.262626][ T570] RSP: 002b:00007f210265f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 61.271025][ T570] RAX: ffffffffffffffda RBX: 00007f210281d030 RCX: 00007f210270a0e9 [ 61.279082][ T570] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 61.287118][ T570] RBP: 00007f210265f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 61.295153][ T570] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 61.303111][ T570] R13: 00007ffff3aad91f R14: 00007f210265f300 R15: 0000000000022000 [ 61.313236][ T570] !!!! css_create rcu_enqueue(ffff888113520c00) !!!! [ 61.320094][ T570] !!!! control_disable kill_css(ffff888113522400) [ 61.326775][ T570] !!!! control_disable kill_css(ffff888113521000) [ 61.333356][ T570] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 61.341985][ T414] ------------[ cut here ]------------ [ 61.347608][ C0] !!!! css_killed_ref_fn enqueue(ffff888113522400) [ 61.347626][ C0] !!!! css_killed_ref_fn enqueue(ffff888113521000) [ 61.360804][ T414] WARNING: CPU: 0 PID: 414 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 61.369762][ T414] Modules linked in: [ 61.373659][ T414] CPU: 0 PID: 414 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 61.385211][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.395434][ T414] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 61.401325][ T414] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 61.420966][ T414] RSP: 0018:ffffc90000ef7ca0 EFLAGS: 00010293 [ 61.427164][ T414] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810c8b0000 [ 61.435213][ T414] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 61.443647][ T414] RBP: ffffc90000ef7d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 61.452534][ T414] R10: fffff520001def85 R11: 1ffff920001def84 R12: dffffc0000000000 [ 61.460598][ T414] R13: ffff888112da3c00 R14: ffffc90000ef7d00 R15: 1ffff920001def9c [ 61.468757][ T414] FS: 0000555555a7c400(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 61.477711][ T414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.484280][ T414] CR2: 0000555555a85b38 CR3: 000000011a140000 CR4: 00000000003506b0 [ 61.492275][ T414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.500355][ T414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.508337][ T414] Call Trace: [ 61.512198][ T414] ? lockref_get_or_lock+0x340/0x340 [ 61.518297][ T414] ? umount_tree+0xf50/0xf50 [ 61.522900][ T414] ? vfs_submount+0xb0/0xb0 [ 61.527417][ T414] ? dput+0x2b6/0x320 [ 61.531491][ T414] path_umount+0x1fe/0xfb0 [ 61.536489][ T414] ? namespace_unlock+0x4f0/0x4f0 [ 61.541552][ T414] ? user_path_at_empty+0x40/0x50 [ 61.546603][ T414] __x64_sys_umount+0x122/0x170 [ 61.551547][ T414] ? path_umount+0xfb0/0xfb0 [ 61.556267][ T414] ? debug_smp_processor_id+0x17/0x20 [ 61.561639][ T414] do_syscall_64+0x34/0x70 [ 61.566091][ T414] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.571992][ T414] RIP: 0033:0x7f210270b557 [ 61.576515][ T414] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 61.596415][ T414] RSP: 002b:00007ffff3aaca78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 61.604912][ T414] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f210270b557 [ 61.612935][ T414] RDX: 00007ffff3aacb49 RSI: 000000000000000a RDI: 00007ffff3aacb40 [ 61.620950][ T414] RBP: 00007ffff3aacb40 R08: 00000000ffffffff R09: 00007ffff3aac910 [ 61.628943][ T414] R10: 0000555555a7dba3 R11: 0000000000000246 R12: 00007f21027631f8 [ 61.636939][ T414] R13: 00007ffff3aadc00 R14: 0000555555a7db00 R15: 00007ffff3aadc40 [ 61.644948][ T414] ---[ end trace eb0090bb59c3f934 ]--- [ 61.650598][ T437] !!!! css_killed_work_fn css_put(ffff888113522400) [ 61.650658][ T414] ------------[ cut here ]------------ [ 61.657312][ T437] !!!! css_release enqueue(ffff888113522400) [ 61.662920][ T414] WARNING: CPU: 1 PID: 414 at fs/namespace.c:1109 cleanup_mnt+0x4c5/0x510 [ 61.669001][ T125] !!!! css_killed_work_fn css_put(ffff888113521000) [ 61.677547][ T414] Modules linked in: [ 61.684275][ T549] !!!! css_create css ffff888113c5c800 !!!! [ 61.688162][ T414] CPU: 1 PID: 414 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 61.694136][ T549] !!!! css_create css ffff888113c5dc00 !!!! [ 61.705715][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.711813][ T549] !!!! css_create css ffff888113c5c400 !!!! [ 61.721838][ T414] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 61.727667][ T549] FAULT_INJECTION: forcing a failure. [ 61.727667][ T549] name failslab, interval 1, probability 0, space 0, times 0 [ 61.732855][ T414] 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 d8 d9 5e 86 80 e1 07 80 c1 03 38 c1 [ 61.745423][ T549] CPU: 0 PID: 549 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 61.765263][ T414] RSP: 0018:ffffc90000ef7e30 EFLAGS: 00010293 [ 61.776412][ T549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.776416][ T549] Call Trace: [ 61.776433][ T549] dump_stack_lvl+0x1e2/0x24b [ 61.776443][ T549] ? bfq_pos_tree_add_move+0x43e/0x43e [ 61.776453][ T549] dump_stack+0x15/0x17 [ 61.776463][ T549] should_fail+0x3c0/0x510 [ 61.776481][ T549] ? __kernfs_new_node+0x99/0x6e0 [ 61.782799][ T414] [ 61.792778][ T549] __should_failslab+0x9f/0xe0 [ 61.792788][ T549] should_failslab+0x9/0x20 [ 61.792798][ T549] __kmalloc_track_caller+0x5f/0x350 [ 61.792815][ T549] kstrdup_const+0x55/0x90 [ 61.796113][ T414] RAX: ffffffff81b7a4d5 RBX: ffffe8ffffd43024 RCX: ffff88810c8b0000 [ 61.800802][ T549] __kernfs_new_node+0x99/0x6e0 [ 61.800812][ T549] ? stack_trace_save+0x1f0/0x1f0 [ 61.800826][ T549] ? kernfs_new_node+0x170/0x170 [ 61.806319][ T414] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 61.810398][ T549] ? ptr_to_hashval+0x60/0x60 [ 61.810408][ T549] ? snprintf+0xd6/0x120 [ 61.810424][ T549] ? debug_smp_processor_id+0x17/0x20 [ 61.814942][ T414] RBP: ffffc90000ef7e80 R08: ffffffff81b7a1b3 R09: 0000000000000003 [ 61.819904][ T549] kernfs_new_node+0x97/0x170 [ 61.819916][ T549] __kernfs_create_file+0x4a/0x270 [ 61.819925][ T549] cgroup_addrm_files+0xab8/0xfe0 [ 61.819942][ T549] ? cgroup_apply_control_enable+0x734/0x12e0 [ 61.822357][ T414] R10: fffff520001defc5 R11: 1ffff920001defc4 R12: ffff888112da3c68 [ 61.827073][ T549] ? cgroup_apply_control+0x93/0x710 [ 61.827082][ T549] ? cgroup_subtree_control_write+0xd19/0x1310 [ 61.827092][ T549] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 61.827107][ T549] ? delete_node+0x759/0x7b0 [ 61.831618][ T414] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 61.836844][ T549] ? __kasan_check_read+0x11/0x20 [ 61.836853][ T549] ? delete_node+0x759/0x7b0 [ 61.836861][ T549] ? __kasan_check_write+0x14/0x20 [ 61.836876][ T549] ? __radix_tree_replace+0x246/0x2e0 [ 61.841300][ T414] FS: 0000555555a7c400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 61.849217][ T549] ? idr_get_next+0x4b0/0x4b0 [ 61.849227][ T549] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 61.849235][ T549] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 61.849252][ T549] css_populate_dir+0x137/0x370 [ 61.854272][ T414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.859263][ T549] cgroup_apply_control_enable+0x629/0x12e0 [ 61.859275][ T549] cgroup_apply_control+0x93/0x710 [ 61.859290][ T549] ? css_next_child+0x160/0x160 [ 61.864309][ T414] CR2: 00007f05b75c4ff8 CR3: 000000011a140000 CR4: 00000000003506a0 [ 61.872224][ T549] ? dequeue_task_fair+0x7ad/0xb50 [ 61.872235][ T549] ? io_schedule+0x120/0x120 [ 61.872252][ T549] ? kernfs_fop_write_iter+0x15e/0x410 [ 61.876939][ T414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.881123][ T549] ? __kasan_check_write+0x14/0x20 [ 61.881134][ T549] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 61.881149][ T549] cgroup_subtree_control_write+0xd19/0x1310 [ 61.886554][ T414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.894452][ T549] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 61.894463][ T549] ? __kasan_check_write+0x14/0x20 [ 61.894480][ T549] ? _copy_from_iter+0x3fb/0xd60 [ 61.899165][ T414] Call Trace: [ 61.904199][ T549] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 61.904208][ T549] cgroup_file_write+0x28e/0x590 [ 61.904224][ T549] ? cgroup_seqfile_stop+0xc0/0xc0 [ 61.909262][ T414] __cleanup_mnt+0x19/0x20 [ 61.915251][ T549] ? mutex_lock+0xa6/0x110 [ 61.915260][ T549] ? mutex_trylock+0xb0/0xb0 [ 61.915277][ T549] ? __kasan_check_write+0x14/0x20 [ 61.923267][ T414] task_work_run+0x147/0x1b0 [ 61.928574][ T549] kernfs_fop_write_iter+0x2d0/0x410 [ 61.928584][ T549] ? cgroup_seqfile_stop+0xc0/0xc0 [ 61.928601][ T549] vfs_write+0xc1c/0xf40 [ 61.934755][ T414] exit_to_user_mode_loop+0xc8/0xe0 [ 61.940843][ T549] ? kernel_write+0x3c0/0x3c0 [ 61.940856][ T549] ? mutex_trylock+0xb0/0xb0 [ 61.940871][ T549] ? __fdget_pos+0x26d/0x310 [ 61.945485][ T414] syscall_exit_to_user_mode+0x77/0xa0 [ 61.953381][ T549] ? ksys_write+0x77/0x2c0 [ 61.953391][ T549] ksys_write+0x198/0x2c0 [ 61.953407][ T549] ? __ia32_sys_read+0x90/0x90 [ 61.958448][ T414] do_syscall_64+0x40/0x70 [ 61.962955][ T549] ? debug_smp_processor_id+0x17/0x20 [ 61.962965][ T549] __x64_sys_write+0x7b/0x90 [ 61.962981][ T549] do_syscall_64+0x34/0x70 [ 61.968110][ T414] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.973412][ T549] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.973421][ T549] RIP: 0033:0x7f157230c0e9 [ 61.973438][ T549] 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 [ 61.982384][ T414] RIP: 0033:0x7f210270b557 [ 61.987003][ T549] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 61.987017][ T549] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 61.987030][ T549] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 61.992082][ T414] Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 61.997392][ T549] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 [ 61.997399][ T549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 61.997406][ T549] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 61.997839][ T549] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 62.002542][ T414] RSP: 002b:00007ffff3aaca78 EFLAGS: 00000246 [ 62.009300][ T549] !!!! control_disable kill_css(ffff888113c5c800) [ 62.025121][ T414] ORIG_RAX: 00000000000000a6 [ 62.033461][ T549] !!!! control_disable kill_css(ffff888113c5dc00) [ 62.056051][ T414] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f210270b557 [ 62.056065][ T414] RDX: 00007ffff3aacb49 RSI: 000000000000000a RDI: 00007ffff3aacb40 [ 62.061474][ T549] !!!! control_disable kill_css(ffff888113c5c400) [ 62.067017][ T414] RBP: 00007ffff3aacb40 R08: 00000000ffffffff R09: 00007ffff3aac910 [ 62.072982][ T549] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 62.080987][ T414] R10: 0000555555a7dba3 R11: 0000000000000246 R12: 00007f21027631f8 [ 62.090669][ C0] !!!! css_killed_ref_fn enqueue(ffff888113c5c800) [ 62.091825][ T414] R13: 00007ffff3aadc00 R14: 0000555555a7db00 R15: 00007ffff3aadc40 [ 62.091840][ T414] ---[ end trace eb0090bb59c3f935 ]--- [ 62.096992][ T5] !!!! css_killed_work_fn css_put(ffff888113c5c800) [ 62.139417][ C0] !!!! css_killed_ref_fn enqueue(ffff888113c5dc00) [ 62.139432][ C0] !!!! css_killed_ref_fn enqueue(ffff888113c5c400) [ 62.448026][ T5] !!!! css_release enqueue(ffff888113c5c800) [ 62.455087][ T437] !!!! css_killed_work_fn css_put(ffff888113c5dc00) [ 62.462371][ T437] !!!! css_release enqueue(ffff888113c5dc00) [ 62.468673][ T5] !!!! css_killed_work_fn css_put(ffff888113c5c400) [ 62.475614][ T555] !!!! css_create css ffff8881139ba400 !!!! [ 62.481650][ T555] !!!! css_create css ffff8881139b9000 !!!! [ 62.488080][ T555] !!!! css_create css ffff888113bf2c00 !!!! [ 62.494006][ T555] FAULT_INJECTION: forcing a failure. [ 62.494006][ T555] name failslab, interval 1, probability 0, space 0, times 0 [ 62.506954][ T555] CPU: 1 PID: 555 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 62.518632][ T555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.528677][ T555] Call Trace: [ 62.531961][ T555] dump_stack_lvl+0x1e2/0x24b [ 62.536746][ T555] ? bfq_pos_tree_add_move+0x43e/0x43e [ 62.542187][ T555] ? serial8250_console_write+0xae0/0xe60 [ 62.547912][ T555] ? record_print_text+0x266/0x420 [ 62.553009][ T555] dump_stack+0x15/0x17 [ 62.557230][ T555] should_fail+0x3c0/0x510 [ 62.561713][ T555] ? __kernfs_new_node+0x99/0x6e0 [ 62.566725][ T555] __should_failslab+0x9f/0xe0 [ 62.571586][ T555] should_failslab+0x9/0x20 [ 62.576069][ T555] __kmalloc_track_caller+0x5f/0x350 [ 62.581347][ T555] kstrdup_const+0x55/0x90 [ 62.585742][ T555] __kernfs_new_node+0x99/0x6e0 [ 62.590573][ T555] ? stack_trace_save+0x1f0/0x1f0 [ 62.595576][ T555] ? kernfs_new_node+0x170/0x170 [ 62.600523][ T555] ? ptr_to_hashval+0x60/0x60 [ 62.605179][ T555] ? snprintf+0xd6/0x120 [ 62.609402][ T555] kernfs_new_node+0x97/0x170 [ 62.614060][ T555] __kernfs_create_file+0x4a/0x270 [ 62.619164][ T555] cgroup_addrm_files+0xab8/0xfe0 [ 62.624171][ T555] ? cgroup_apply_control_enable+0x734/0x12e0 [ 62.630235][ T555] ? cgroup_apply_control+0x93/0x710 [ 62.635674][ T555] ? cgroup_subtree_control_write+0xd19/0x1310 [ 62.641806][ T555] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 62.647948][ T555] ? delete_node+0x759/0x7b0 [ 62.652524][ T555] ? __kasan_check_read+0x11/0x20 [ 62.657614][ T555] ? delete_node+0x759/0x7b0 [ 62.662183][ T555] ? __kasan_check_write+0x14/0x20 [ 62.667273][ T555] ? __radix_tree_replace+0x246/0x2e0 [ 62.672642][ T555] ? idr_get_next+0x4b0/0x4b0 [ 62.677316][ T555] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 62.682321][ T555] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 62.687500][ T555] css_populate_dir+0x137/0x370 [ 62.692431][ T555] cgroup_apply_control_enable+0x629/0x12e0 [ 62.698318][ T555] cgroup_apply_control+0x93/0x710 [ 62.703428][ T555] ? css_next_child+0x160/0x160 [ 62.708258][ T555] ? dequeue_task_fair+0x7ad/0xb50 [ 62.713349][ T555] ? io_schedule+0x120/0x120 [ 62.718089][ T555] ? kernfs_fop_write_iter+0x15e/0x410 [ 62.723543][ T555] ? __kasan_check_write+0x14/0x20 [ 62.728632][ T555] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 62.733897][ T555] cgroup_subtree_control_write+0xd19/0x1310 [ 62.739856][ T555] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 62.745817][ T555] ? __kasan_check_write+0x14/0x20 [ 62.750995][ T555] ? _copy_from_iter+0x3fb/0xd60 [ 62.755926][ T555] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 62.761887][ T555] cgroup_file_write+0x28e/0x590 [ 62.766809][ T555] ? cgroup_seqfile_stop+0xc0/0xc0 [ 62.771914][ T555] ? mutex_lock+0xa6/0x110 [ 62.776373][ T555] ? mutex_trylock+0xb0/0xb0 [ 62.780972][ T555] ? __kasan_check_write+0x14/0x20 [ 62.786078][ T555] kernfs_fop_write_iter+0x2d0/0x410 [ 62.791340][ T555] ? cgroup_seqfile_stop+0xc0/0xc0 [ 62.796428][ T555] vfs_write+0xc1c/0xf40 [ 62.800757][ T555] ? kernel_write+0x3c0/0x3c0 [ 62.805424][ T555] ? mutex_trylock+0xb0/0xb0 [ 62.809996][ T555] ? __fdget_pos+0x26d/0x310 [ 62.814578][ T555] ? ksys_write+0x77/0x2c0 [ 62.818979][ T555] ksys_write+0x198/0x2c0 [ 62.823286][ T555] ? __ia32_sys_read+0x90/0x90 [ 62.828031][ T555] ? debug_smp_processor_id+0x17/0x20 [ 62.833384][ T555] __x64_sys_write+0x7b/0x90 [ 62.837956][ T555] do_syscall_64+0x34/0x70 [ 62.842350][ T555] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.848233][ T555] RIP: 0033:0x7fb14d3820e9 [ 62.852632][ T555] 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 [ 62.872301][ T555] RSP: 002b:00007fb14d2d7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 62.880710][ T555] RAX: ffffffffffffffda RBX: 00007fb14d495030 RCX: 00007fb14d3820e9 [ 62.888761][ T555] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 62.896714][ T555] RBP: 00007fb14d2d71d0 R08: 0000000000000000 R09: 0000000000000000 [ 62.904680][ T555] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 62.912643][ T555] R13: 00007ffc3daf25ff R14: 00007fb14d2d7300 R15: 0000000000022000 [ 62.922768][ T555] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 62.929957][ T555] !!!! control_disable kill_css(ffff8881139ba400) [ 62.936686][ T555] !!!! control_disable kill_css(ffff8881139b9000) [ 62.943318][ T555] !!!! control_disable kill_css(ffff888113bf2c00) [ 62.950037][ T555] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 62.966747][ C1] !!!! css_killed_ref_fn enqueue(ffff8881139ba400) [ 62.973398][ C1] !!!! css_killed_ref_fn enqueue(ffff8881139b9000) [ 62.980029][ T386] !!!! css_killed_work_fn css_put(ffff8881139ba400) [ 62.986837][ C1] !!!! css_killed_ref_fn enqueue(ffff888113bf2c00) [ 62.993778][ T386] !!!! css_killed_work_fn css_put(ffff8881139b9000) [ 63.000666][ T386] !!!! css_release enqueue(ffff8881139b9000) [ 63.006797][ T386] !!!! css_killed_work_fn css_put(ffff888113bf2c00) [ 63.013509][ T581] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 63.013542][ T573] !!!! css_create css ffff888113e29400 !!!! [ 63.026017][ T573] !!!! css_create css ffff888113e28c00 !!!! [ 63.031934][ T573] !!!! css_create css ffff888113e29000 !!!! [ 63.037850][ T573] FAULT_INJECTION: forcing a failure. [ 63.037850][ T573] name failslab, interval 1, probability 0, space 0, times 0 [ 63.050455][ T573] CPU: 1 PID: 573 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 63.061964][ T573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.072984][ T573] Call Trace: [ 63.076299][ T573] dump_stack_lvl+0x1e2/0x24b [ 63.080954][ T573] ? bfq_pos_tree_add_move+0x43e/0x43e [ 63.086389][ T573] dump_stack+0x15/0x17 [ 63.090526][ T573] should_fail+0x3c0/0x510 [ 63.094930][ T573] ? __kernfs_new_node+0x99/0x6e0 [ 63.099939][ T573] __should_failslab+0x9f/0xe0 [ 63.104771][ T573] should_failslab+0x9/0x20 [ 63.109515][ T573] __kmalloc_track_caller+0x5f/0x350 [ 63.114782][ T573] kstrdup_const+0x55/0x90 [ 63.119204][ T573] __kernfs_new_node+0x99/0x6e0 [ 63.124299][ T573] ? stack_trace_save+0x1f0/0x1f0 [ 63.129388][ T573] ? kernfs_new_node+0x170/0x170 [ 63.134472][ T573] ? ptr_to_hashval+0x60/0x60 [ 63.139142][ T573] ? snprintf+0xd6/0x120 [ 63.143358][ T573] kernfs_new_node+0x97/0x170 [ 63.148024][ T573] __kernfs_create_file+0x4a/0x270 [ 63.153224][ T573] cgroup_addrm_files+0xab8/0xfe0 [ 63.158243][ T573] ? cgroup_apply_control_enable+0x734/0x12e0 [ 63.164291][ T573] ? cgroup_apply_control+0x93/0x710 [ 63.169559][ T573] ? cgroup_subtree_control_write+0xd19/0x1310 [ 63.175706][ T573] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 63.181836][ T573] ? delete_node+0x759/0x7b0 [ 63.186418][ T573] ? __kasan_check_read+0x11/0x20 [ 63.191437][ T573] ? delete_node+0x759/0x7b0 [ 63.196018][ T573] ? __kasan_check_write+0x14/0x20 [ 63.203551][ T573] ? __radix_tree_replace+0x246/0x2e0 [ 63.209029][ T573] ? idr_get_next+0x4b0/0x4b0 [ 63.213739][ T573] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 63.218751][ T573] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 63.224197][ T573] css_populate_dir+0x137/0x370 [ 63.229079][ T573] cgroup_apply_control_enable+0x629/0x12e0 [ 63.234955][ T573] cgroup_apply_control+0x93/0x710 [ 63.240052][ T573] ? css_next_child+0x160/0x160 [ 63.244912][ T573] ? dequeue_task_fair+0x7ad/0xb50 [ 63.250004][ T573] ? io_schedule+0x120/0x120 [ 63.254604][ T573] ? kernfs_fop_write_iter+0x15e/0x410 [ 63.260136][ T573] ? __kasan_check_write+0x14/0x20 [ 63.265226][ T573] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 63.270593][ T573] cgroup_subtree_control_write+0xd19/0x1310 [ 63.276569][ T573] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 63.282542][ T573] ? __kasan_check_write+0x14/0x20 [ 63.287634][ T573] ? _copy_from_iter+0x3fb/0xd60 [ 63.292574][ T573] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 63.298568][ T573] cgroup_file_write+0x28e/0x590 [ 63.303507][ T573] ? cgroup_seqfile_stop+0xc0/0xc0 [ 63.308857][ T573] ? mutex_lock+0xa6/0x110 [ 63.313424][ T573] ? mutex_trylock+0xb0/0xb0 [ 63.318167][ T573] ? __kasan_check_write+0x14/0x20 [ 63.323268][ T573] kernfs_fop_write_iter+0x2d0/0x410 [ 63.328548][ T573] ? cgroup_seqfile_stop+0xc0/0xc0 [ 63.333739][ T573] vfs_write+0xc1c/0xf40 [ 63.338072][ T573] ? kernel_write+0x3c0/0x3c0 [ 63.342863][ T573] ? mutex_trylock+0xb0/0xb0 [ 63.347445][ T573] ? __fdget_pos+0x26d/0x310 [ 63.352107][ T573] ? ksys_write+0x77/0x2c0 [ 63.356505][ T573] ksys_write+0x198/0x2c0 [ 63.360819][ T573] ? __ia32_sys_read+0x90/0x90 [ 63.365633][ T573] ? debug_smp_processor_id+0x17/0x20 [ 63.371004][ T573] __x64_sys_write+0x7b/0x90 [ 63.375581][ T573] do_syscall_64+0x34/0x70 [ 63.380000][ T573] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.385877][ T573] RIP: 0033:0x7f1d047a10e9 [ 63.390289][ T573] 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 [ 63.410240][ T573] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 63.418653][ T573] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 63.426719][ T573] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 63.434700][ T573] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 63.442859][ T573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 63.450831][ T573] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 63.462093][ T573] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 63.475606][ T573] !!!! control_disable kill_css(ffff888113e29400) [ 63.485816][ T573] !!!! control_disable kill_css(ffff888113e28c00) [ 63.495426][ T573] !!!! control_disable kill_css(ffff888113e29000) [ 63.502201][ T573] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 63.516631][ C0] !!!! css_killed_ref_fn enqueue(ffff888113e29400) [ 63.523466][ C0] !!!! css_killed_ref_fn enqueue(ffff888113e28c00) [ 63.530144][ T437] !!!! css_killed_work_fn css_put(ffff888113e29400) [ 63.537010][ C0] !!!! css_killed_ref_fn enqueue(ffff888113e29000) [ 63.544365][ T437] !!!! css_release enqueue(ffff888113e29400) [ 63.550843][ T437] !!!! css_killed_work_fn css_put(ffff888113e28c00) [ 63.557798][ T437] !!!! css_release enqueue(ffff888113e28c00) [ 63.564143][ T437] !!!! css_killed_work_fn css_put(ffff888113e29000) [ 63.571277][ T437] !!!! css_release enqueue(ffff888113e29000) [ 63.577543][ T593] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 63.584063][ T588] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 63.585592][ T594] !!!! css_create css ffff8881139bb000 !!!! [ 63.596771][ T594] !!!! css_create css ffff8881139b9c00 !!!! [ 63.602684][ T594] !!!! css_create css ffff8881139bac00 !!!! [ 63.608698][ T594] FAULT_INJECTION: forcing a failure. [ 63.608698][ T594] name failslab, interval 1, probability 0, space 0, times 0 [ 63.621391][ T594] CPU: 1 PID: 594 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 63.633221][ T594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.643265][ T594] Call Trace: [ 63.646808][ T594] dump_stack_lvl+0x1e2/0x24b [ 63.651530][ T594] ? bfq_pos_tree_add_move+0x43e/0x43e [ 63.656997][ T594] ? find_next_bit+0xd6/0x120 [ 63.661751][ T594] ? cpumask_next+0x11/0x30 [ 63.666432][ T594] dump_stack+0x15/0x17 [ 63.670828][ T594] should_fail+0x3c0/0x510 [ 63.675235][ T594] ? percpu_ref_init+0xd0/0x330 [ 63.680116][ T594] __should_failslab+0x9f/0xe0 [ 63.684874][ T594] should_failslab+0x9/0x20 [ 63.689579][ T594] kmem_cache_alloc_trace+0x3a/0x330 [ 63.694850][ T594] percpu_ref_init+0xd0/0x330 [ 63.699518][ T594] ? cgroup_setup_root+0xea0/0xea0 [ 63.704620][ T594] cgroup_apply_control_enable+0x734/0x12e0 [ 63.710498][ T594] cgroup_apply_control+0x93/0x710 [ 63.715588][ T594] ? css_next_child+0x160/0x160 [ 63.720437][ T594] ? dequeue_task_fair+0x7ad/0xb50 [ 63.725533][ T594] ? io_schedule+0x120/0x120 [ 63.730101][ T594] ? kernfs_fop_write_iter+0x15e/0x410 [ 63.735555][ T594] ? __kasan_check_write+0x14/0x20 [ 63.740668][ T594] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 63.746038][ T594] cgroup_subtree_control_write+0xd19/0x1310 [ 63.752014][ T594] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 63.757985][ T594] ? __kasan_check_write+0x14/0x20 [ 63.763194][ T594] ? _copy_from_iter+0x3fb/0xd60 [ 63.768747][ T594] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 63.775322][ T594] cgroup_file_write+0x28e/0x590 [ 63.780275][ T594] ? cgroup_seqfile_stop+0xc0/0xc0 [ 63.785429][ T594] ? mutex_lock+0xa6/0x110 [ 63.789841][ T594] ? mutex_trylock+0xb0/0xb0 [ 63.794453][ T594] ? __kasan_check_write+0x14/0x20 [ 63.799608][ T594] kernfs_fop_write_iter+0x2d0/0x410 [ 63.804887][ T594] ? cgroup_seqfile_stop+0xc0/0xc0 [ 63.809993][ T594] vfs_write+0xc1c/0xf40 [ 63.814243][ T594] ? kernel_write+0x3c0/0x3c0 [ 63.818964][ T594] ? mutex_trylock+0xb0/0xb0 [ 63.823558][ T594] ? __fdget_pos+0x26d/0x310 [ 63.828130][ T594] ? ksys_write+0x77/0x2c0 [ 63.832528][ T594] ksys_write+0x198/0x2c0 [ 63.836852][ T594] ? __ia32_sys_read+0x90/0x90 [ 63.841709][ T594] ? debug_smp_processor_id+0x17/0x20 [ 63.847166][ T594] __x64_sys_write+0x7b/0x90 [ 63.851740][ T594] do_syscall_64+0x34/0x70 [ 63.856138][ T594] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.862104][ T594] RIP: 0033:0x7f1d047a10e9 [ 63.866507][ T594] 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 [ 63.886095][ T594] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 63.894500][ T594] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 63.902455][ T594] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 63.910421][ T594] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 63.918553][ T594] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 63.926553][ T594] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 63.934795][ T594] !!!! css_create rcu_enqueue(ffff8881139bac00) !!!! [ 63.941544][ T594] !!!! control_disable kill_css(ffff8881139bb000) [ 63.948391][ T594] !!!! control_disable kill_css(ffff8881139b9c00) [ 63.954979][ T594] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 63.985590][ C1] !!!! css_killed_ref_fn enqueue(ffff8881139bb000) [ 63.992226][ C1] !!!! css_killed_ref_fn enqueue(ffff8881139b9c00) [ 63.999069][ T383] !!!! css_killed_work_fn css_put(ffff8881139bb000) [ 64.005760][ T383] !!!! css_release enqueue(ffff8881139bb000) [ 64.011844][ T383] !!!! css_killed_work_fn css_put(ffff8881139b9c00) [ 64.018684][ T383] !!!! css_release enqueue(ffff8881139b9c00) [ 64.025072][ T589] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 64.031751][ T567] !!!! css_create css ffff888113bf2000 !!!! [ 64.037770][ T567] !!!! css_create css ffff888113bf3c00 !!!! [ 64.043760][ T567] !!!! css_create css ffff888113bf3000 !!!! [ 64.049893][ T567] FAULT_INJECTION: forcing a failure. [ 64.049893][ T567] name failslab, interval 1, probability 0, space 0, times 0 [ 64.062870][ T567] CPU: 0 PID: 567 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 64.074497][ T567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.084536][ T567] Call Trace: [ 64.087827][ T567] dump_stack_lvl+0x1e2/0x24b [ 64.092494][ T567] ? bfq_pos_tree_add_move+0x43e/0x43e [ 64.098013][ T567] ? find_next_bit+0xd6/0x120 [ 64.102663][ T567] ? cpumask_next+0x11/0x30 [ 64.107150][ T567] dump_stack+0x15/0x17 [ 64.111369][ T567] should_fail+0x3c0/0x510 [ 64.115765][ T567] ? percpu_ref_init+0xd0/0x330 [ 64.120602][ T567] __should_failslab+0x9f/0xe0 [ 64.125341][ T567] should_failslab+0x9/0x20 [ 64.129926][ T567] kmem_cache_alloc_trace+0x3a/0x330 [ 64.135189][ T567] percpu_ref_init+0xd0/0x330 [ 64.139846][ T567] ? cgroup_setup_root+0xea0/0xea0 [ 64.145021][ T567] cgroup_apply_control_enable+0x734/0x12e0 [ 64.150913][ T567] cgroup_apply_control+0x93/0x710 [ 64.156661][ T567] ? css_next_child+0x160/0x160 [ 64.161505][ T567] ? io_schedule+0x120/0x120 [ 64.166080][ T567] ? kernfs_fop_write_iter+0x15e/0x410 [ 64.171526][ T567] ? __kasan_check_write+0x14/0x20 [ 64.176619][ T567] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 64.181887][ T567] cgroup_subtree_control_write+0xd19/0x1310 [ 64.187857][ T567] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 64.193817][ T567] ? __kasan_check_write+0x14/0x20 [ 64.198911][ T567] ? _copy_from_iter+0x3fb/0xd60 [ 64.203837][ T567] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 64.209793][ T567] cgroup_file_write+0x28e/0x590 [ 64.214704][ T567] ? cgroup_seqfile_stop+0xc0/0xc0 [ 64.219799][ T567] ? mutex_lock+0xa6/0x110 [ 64.224198][ T567] ? mutex_trylock+0xb0/0xb0 [ 64.228774][ T567] ? __kasan_check_write+0x14/0x20 [ 64.233958][ T567] kernfs_fop_write_iter+0x2d0/0x410 [ 64.239235][ T567] ? cgroup_seqfile_stop+0xc0/0xc0 [ 64.244328][ T567] vfs_write+0xc1c/0xf40 [ 64.248549][ T567] ? kernel_write+0x3c0/0x3c0 [ 64.253200][ T567] ? mutex_trylock+0xb0/0xb0 [ 64.257766][ T567] ? __fdget_pos+0x26d/0x310 [ 64.262418][ T567] ? ksys_write+0x77/0x2c0 [ 64.266821][ T567] ksys_write+0x198/0x2c0 [ 64.271126][ T567] ? __ia32_sys_read+0x90/0x90 [ 64.275864][ T567] ? debug_smp_processor_id+0x17/0x20 [ 64.281208][ T567] __x64_sys_write+0x7b/0x90 [ 64.285770][ T567] do_syscall_64+0x34/0x70 [ 64.290162][ T567] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.296037][ T567] RIP: 0033:0x7fee9f29f0e9 [ 64.300438][ 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 [ 64.320289][ T567] RSP: 002b:00007fee9f1f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 64.328853][ T567] RAX: ffffffffffffffda RBX: 00007fee9f3b2030 RCX: 00007fee9f29f0e9 [ 64.336932][ T567] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 64.344936][ T567] RBP: 00007fee9f1f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 64.352904][ T567] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 64.360870][ T567] R13: 00007fff0617897f R14: 00007fee9f1f4300 R15: 0000000000022000 [ 64.370668][ T567] !!!! css_create rcu_enqueue(ffff888113bf3000) !!!! [ 64.377409][ T567] !!!! control_disable kill_css(ffff888113bf2000) [ 64.384123][ T567] !!!! control_disable kill_css(ffff888113bf3c00) [ 64.390764][ T567] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 64.415520][ C1] !!!! css_killed_ref_fn enqueue(ffff888113bf2000) [ 64.422196][ C1] !!!! css_killed_ref_fn enqueue(ffff888113bf3c00) [ 64.429049][ T383] !!!! css_killed_work_fn css_put(ffff888113bf2000) [ 64.435953][ T383] !!!! css_release enqueue(ffff888113bf2000) [ 64.442083][ T383] !!!! css_killed_work_fn css_put(ffff888113bf3c00) [ 64.449034][ T383] !!!! css_release enqueue(ffff888113bf3c00) [ 64.455222][ T596] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 64.461970][ T584] !!!! css_create css ffff888114391c00 !!!! [ 64.467961][ T584] !!!! css_create css ffff888114393000 !!!! [ 64.473966][ T584] !!!! css_create css ffff888114393c00 !!!! [ 64.479956][ T584] FAULT_INJECTION: forcing a failure. [ 64.479956][ T584] name failslab, interval 1, probability 0, space 0, times 0 [ 64.492633][ T584] CPU: 0 PID: 584 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 64.504165][ T584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.514198][ T584] Call Trace: [ 64.517472][ T584] dump_stack_lvl+0x1e2/0x24b [ 64.522144][ T584] ? bfq_pos_tree_add_move+0x43e/0x43e [ 64.527579][ T584] dump_stack+0x15/0x17 [ 64.531717][ T584] should_fail+0x3c0/0x510 [ 64.536202][ T584] ? __kernfs_new_node+0x99/0x6e0 [ 64.541229][ T584] __should_failslab+0x9f/0xe0 [ 64.545980][ T584] should_failslab+0x9/0x20 [ 64.550493][ T584] __kmalloc_track_caller+0x5f/0x350 [ 64.555759][ T584] kstrdup_const+0x55/0x90 [ 64.560176][ T584] __kernfs_new_node+0x99/0x6e0 [ 64.565015][ T584] ? stack_trace_save+0x1f0/0x1f0 [ 64.570122][ T584] ? kernfs_new_node+0x170/0x170 [ 64.575044][ T584] ? ptr_to_hashval+0x60/0x60 [ 64.579700][ T584] ? snprintf+0xd6/0x120 [ 64.584006][ T584] kernfs_new_node+0x97/0x170 [ 64.588668][ T584] __kernfs_create_file+0x4a/0x270 [ 64.594104][ T584] cgroup_addrm_files+0xab8/0xfe0 [ 64.599111][ T584] ? cgroup_apply_control_enable+0x734/0x12e0 [ 64.605168][ T584] ? cgroup_apply_control+0x93/0x710 [ 64.610430][ T584] ? cgroup_subtree_control_write+0xd19/0x1310 [ 64.616561][ T584] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 64.622694][ T584] ? delete_node+0x759/0x7b0 [ 64.627268][ T584] ? __kasan_check_read+0x11/0x20 [ 64.632266][ T584] ? delete_node+0x759/0x7b0 [ 64.636837][ T584] ? __kasan_check_write+0x14/0x20 [ 64.641925][ T584] ? __radix_tree_replace+0x246/0x2e0 [ 64.647274][ T584] ? idr_get_next+0x4b0/0x4b0 [ 64.651934][ T584] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 64.657019][ T584] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 64.662198][ T584] css_populate_dir+0x137/0x370 [ 64.667034][ T584] cgroup_apply_control_enable+0x629/0x12e0 [ 64.672993][ T584] cgroup_apply_control+0x93/0x710 [ 64.678090][ T584] ? css_next_child+0x160/0x160 [ 64.682918][ T584] ? dequeue_task_fair+0x7ad/0xb50 [ 64.688007][ T584] ? io_schedule+0x120/0x120 [ 64.692574][ T584] ? kernfs_fop_write_iter+0x15e/0x410 [ 64.698019][ T584] ? __kasan_check_write+0x14/0x20 [ 64.703107][ T584] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 64.708371][ T584] cgroup_subtree_control_write+0xd19/0x1310 [ 64.714338][ T584] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 64.720391][ T584] ? __kasan_check_write+0x14/0x20 [ 64.725481][ T584] ? _copy_from_iter+0x3fb/0xd60 [ 64.730395][ T584] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 64.736356][ T584] cgroup_file_write+0x28e/0x590 [ 64.741358][ T584] ? cgroup_seqfile_stop+0xc0/0xc0 [ 64.746451][ T584] ? mutex_lock+0xa6/0x110 [ 64.752589][ T584] ? mutex_trylock+0xb0/0xb0 [ 64.757159][ T584] ? __kasan_check_write+0x14/0x20 [ 64.762251][ T584] kernfs_fop_write_iter+0x2d0/0x410 [ 64.767605][ T584] ? cgroup_seqfile_stop+0xc0/0xc0 [ 64.772704][ T584] vfs_write+0xc1c/0xf40 [ 64.776932][ T584] ? kernel_write+0x3c0/0x3c0 [ 64.781675][ T584] ? mutex_trylock+0xb0/0xb0 [ 64.786248][ T584] ? __fdget_pos+0x26d/0x310 [ 64.790833][ T584] ? ksys_write+0x77/0x2c0 [ 64.795338][ T584] ksys_write+0x198/0x2c0 [ 64.799739][ T584] ? __ia32_sys_read+0x90/0x90 [ 64.804573][ T584] ? debug_smp_processor_id+0x17/0x20 [ 64.810009][ T584] __x64_sys_write+0x7b/0x90 [ 64.814575][ T584] do_syscall_64+0x34/0x70 [ 64.818979][ T584] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.824938][ T584] RIP: 0033:0x7f157230c0e9 [ 64.829332][ T584] 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 [ 64.849346][ T584] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 64.857833][ T584] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 64.865788][ T584] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 64.873751][ T584] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 2022/06/06 21:51:55 executed programs: 56 [ 64.882140][ T584] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 64.890108][ T584] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 64.899478][ T584] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 64.906815][ T584] !!!! control_disable kill_css(ffff888114391c00) [ 64.913438][ T584] !!!! control_disable kill_css(ffff888114393000) [ 64.920277][ T584] !!!! control_disable kill_css(ffff888114393c00) [ 64.926917][ T584] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 64.965589][ C0] !!!! css_killed_ref_fn enqueue(ffff888114391c00) [ 64.972355][ C0] !!!! css_killed_ref_fn enqueue(ffff888114393000) [ 64.975495][ C1] !!!! css_killed_ref_fn enqueue(ffff888114393c00) [ 64.979349][ T437] !!!! css_killed_work_fn css_put(ffff888114391c00) [ 64.992278][ T437] !!!! css_release enqueue(ffff888114391c00) [ 64.998866][ T383] !!!! css_killed_work_fn css_put(ffff888114393c00) [ 65.005766][ T437] !!!! css_killed_work_fn css_put(ffff888114393000) [ 65.012482][ T437] !!!! css_release enqueue(ffff888114393000) [ 65.018836][ T591] !!!! css_create css ffff8881144c1c00 !!!! [ 65.024826][ T591] !!!! css_create css ffff8881144c3000 !!!! [ 65.031710][ T591] FAULT_INJECTION: forcing a failure. [ 65.031710][ T591] name failslab, interval 1, probability 0, space 0, times 0 [ 65.044611][ T591] CPU: 1 PID: 591 Comm: syz-executor.4 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 65.056175][ T591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.066333][ T591] Call Trace: [ 65.069695][ T591] dump_stack_lvl+0x1e2/0x24b [ 65.074355][ T591] ? panic+0x7d7/0x7d7 [ 65.078400][ T591] ? bfq_pos_tree_add_move+0x43e/0x43e [ 65.083834][ T591] dump_stack+0x15/0x17 [ 65.087965][ T591] should_fail+0x3c0/0x510 [ 65.092364][ T591] ? pids_css_alloc+0x4e/0x120 [ 65.097104][ T591] __should_failslab+0x9f/0xe0 [ 65.101937][ T591] should_failslab+0x9/0x20 [ 65.106420][ T591] kmem_cache_alloc_trace+0x3a/0x330 [ 65.111709][ T591] pids_css_alloc+0x4e/0x120 [ 65.116291][ T591] cgroup_apply_control_enable+0x6d9/0x12e0 [ 65.122275][ T591] cgroup_apply_control+0x93/0x710 [ 65.127362][ T591] ? css_next_child+0x160/0x160 [ 65.132205][ T591] ? set_next_entity+0xc5/0x390 [ 65.137034][ T591] ? io_schedule+0x120/0x120 [ 65.141599][ T591] ? kernfs_fop_write_iter+0x15e/0x410 [ 65.147038][ T591] ? __kasan_check_write+0x14/0x20 [ 65.152141][ T591] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 65.157490][ T591] cgroup_subtree_control_write+0xd19/0x1310 [ 65.163452][ T591] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 65.169429][ T591] ? __kasan_check_write+0x14/0x20 [ 65.174513][ T591] ? _copy_from_iter+0x3fb/0xd60 [ 65.179431][ T591] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 65.185382][ T591] cgroup_file_write+0x28e/0x590 [ 65.190294][ T591] ? cgroup_seqfile_stop+0xc0/0xc0 [ 65.195382][ T591] ? mutex_lock+0xa6/0x110 [ 65.199804][ T591] ? mutex_trylock+0xb0/0xb0 [ 65.204385][ T591] ? __kasan_check_write+0x14/0x20 [ 65.209477][ T591] kernfs_fop_write_iter+0x2d0/0x410 [ 65.214740][ T591] ? cgroup_seqfile_stop+0xc0/0xc0 [ 65.219835][ T591] vfs_write+0xc1c/0xf40 [ 65.224150][ T591] ? kernel_write+0x3c0/0x3c0 [ 65.228833][ T591] ? mutex_trylock+0xb0/0xb0 [ 65.233524][ T591] ? __fdget_pos+0x26d/0x310 [ 65.238098][ T591] ? ksys_write+0x77/0x2c0 [ 65.242489][ T591] ksys_write+0x198/0x2c0 [ 65.246819][ T591] ? __ia32_sys_read+0x90/0x90 [ 65.251571][ T591] ? debug_smp_processor_id+0x17/0x20 [ 65.256936][ T591] __x64_sys_write+0x7b/0x90 [ 65.261501][ T591] do_syscall_64+0x34/0x70 [ 65.265904][ T591] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.271769][ T591] RIP: 0033:0x7f210270a0e9 [ 65.276254][ T591] 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 [ 65.296037][ T591] RSP: 002b:00007f210265f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 65.304448][ T591] RAX: ffffffffffffffda RBX: 00007f210281d030 RCX: 00007f210270a0e9 [ 65.312404][ T591] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 65.322270][ T591] RBP: 00007f210265f1d0 R08: 0000000000000000 R09: 0000000000000000 [ 65.330229][ T591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 65.338180][ T591] R13: 00007ffff3aad91f R14: 00007f210265f300 R15: 0000000000022000 [ 65.346339][ T591] !!!! css_create css fffffffffffffff4 !!!! [ 65.352356][ T591] !!!! control_disable kill_css(ffff8881144c1c00) [ 65.358940][ T591] !!!! control_disable kill_css(ffff8881144c3000) [ 65.365603][ T591] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 65.395517][ C1] !!!! css_killed_ref_fn enqueue(ffff8881144c1c00) [ 65.402134][ C1] !!!! css_killed_ref_fn enqueue(ffff8881144c3000) [ 65.408834][ T383] !!!! css_killed_work_fn css_put(ffff8881144c1c00) [ 65.415527][ T383] !!!! css_release enqueue(ffff8881144c1c00) [ 65.421602][ T383] !!!! css_killed_work_fn css_put(ffff8881144c3000) [ 65.428552][ T383] !!!! css_release enqueue(ffff8881144c3000) [ 65.434814][ T575] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 65.441479][ T597] !!!! css_create css ffff8881144c3400 !!!! [ 65.447553][ T597] !!!! css_create css ffff8881144c1800 !!!! [ 65.453695][ T597] !!!! css_create css ffff8881144c2800 !!!! [ 65.459632][ T597] FAULT_INJECTION: forcing a failure. [ 65.459632][ T597] name failslab, interval 1, probability 0, space 0, times 0 [ 65.472272][ T597] CPU: 1 PID: 597 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 65.483783][ T597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.493939][ T597] Call Trace: [ 65.497222][ T597] dump_stack_lvl+0x1e2/0x24b [ 65.501887][ T597] ? bfq_pos_tree_add_move+0x43e/0x43e [ 65.507332][ T597] ? find_next_bit+0xd6/0x120 [ 65.511989][ T597] ? cpumask_next+0x11/0x30 [ 65.516478][ T597] dump_stack+0x15/0x17 [ 65.520607][ T597] should_fail+0x3c0/0x510 [ 65.525179][ T597] ? percpu_ref_init+0xd0/0x330 [ 65.530029][ T597] __should_failslab+0x9f/0xe0 [ 65.534796][ T597] should_failslab+0x9/0x20 [ 65.539279][ T597] kmem_cache_alloc_trace+0x3a/0x330 [ 65.544551][ T597] percpu_ref_init+0xd0/0x330 [ 65.549208][ T597] ? cgroup_setup_root+0xea0/0xea0 [ 65.554335][ T597] cgroup_apply_control_enable+0x734/0x12e0 [ 65.560213][ T597] cgroup_apply_control+0x93/0x710 [ 65.565305][ T597] ? css_next_child+0x160/0x160 [ 65.570133][ T597] ? set_next_entity+0xc5/0x390 [ 65.574976][ T597] ? io_schedule+0x120/0x120 [ 65.579544][ T597] ? kernfs_fop_write_iter+0x15e/0x410 [ 65.585075][ T597] ? __kasan_check_write+0x14/0x20 [ 65.590178][ T597] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 65.595453][ T597] cgroup_subtree_control_write+0xd19/0x1310 [ 65.601420][ T597] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 65.607392][ T597] ? __kasan_check_write+0x14/0x20 [ 65.612480][ T597] ? _copy_from_iter+0x3fb/0xd60 [ 65.617483][ T597] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 65.623439][ T597] cgroup_file_write+0x28e/0x590 [ 65.628352][ T597] ? cgroup_seqfile_stop+0xc0/0xc0 [ 65.633450][ T597] ? mutex_lock+0xa6/0x110 [ 65.637845][ T597] ? mutex_trylock+0xb0/0xb0 [ 65.642421][ T597] ? __kasan_check_write+0x14/0x20 [ 65.647614][ T597] kernfs_fop_write_iter+0x2d0/0x410 [ 65.652903][ T597] ? cgroup_seqfile_stop+0xc0/0xc0 [ 65.657994][ T597] vfs_write+0xc1c/0xf40 [ 65.662218][ T597] ? kernel_write+0x3c0/0x3c0 [ 65.666872][ T597] ? mutex_trylock+0xb0/0xb0 [ 65.671436][ T597] ? __fdget_pos+0x26d/0x310 [ 65.676001][ T597] ? ksys_write+0x77/0x2c0 [ 65.680411][ T597] ksys_write+0x198/0x2c0 [ 65.684717][ T597] ? __ia32_sys_read+0x90/0x90 [ 65.689458][ T597] ? debug_smp_processor_id+0x17/0x20 [ 65.694834][ T597] __x64_sys_write+0x7b/0x90 [ 65.699416][ T597] do_syscall_64+0x34/0x70 [ 65.703837][ T597] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.709703][ T597] RIP: 0033:0x7f1d047a10e9 [ 65.714118][ T597] 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 [ 65.733797][ T597] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 65.742370][ T597] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 65.750329][ T597] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 65.758466][ T597] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 65.766511][ T597] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 65.774479][ T597] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 65.782954][ T597] !!!! css_create rcu_enqueue(ffff8881144c2800) !!!! [ 65.789745][ T597] !!!! control_disable kill_css(ffff8881144c3400) [ 65.796417][ T597] !!!! control_disable kill_css(ffff8881144c1800) [ 65.802992][ T597] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 65.811410][ T419] ------------[ cut here ]------------ [ 65.816898][ T419] WARNING: CPU: 1 PID: 419 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 65.825851][ T419] Modules linked in: [ 65.829763][ T419] CPU: 1 PID: 419 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 65.841409][ T419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.851770][ T419] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 65.857418][ T419] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 65.877238][ T419] RSP: 0018:ffffc90000f47ca0 EFLAGS: 00010293 [ 65.883295][ T419] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810658bb40 [ 65.891343][ T419] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 65.899358][ T419] RBP: ffffc90000f47d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 65.907368][ T419] R10: fffff520001e8f85 R11: 1ffff920001e8f84 R12: dffffc0000000000 [ 65.915350][ T419] R13: ffff888113c8bc00 R14: ffffc90000f47d00 R15: 1ffff920001e8f9c [ 65.923444][ T419] FS: 0000555556a4b400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 65.932744][ T419] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.939343][ T419] CR2: 00007fffe6352ce8 CR3: 000000011df41000 CR4: 00000000003506a0 [ 65.947455][ T419] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.955429][ T419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.963528][ T419] Call Trace: [ 65.966840][ T419] ? lockref_get_or_lock+0x340/0x340 [ 65.972123][ T419] ? umount_tree+0xf50/0xf50 [ 65.976727][ T419] ? vfs_submount+0xb0/0xb0 [ 65.981316][ T419] ? dput+0x2b6/0x320 [ 65.985283][ T419] path_umount+0x1fe/0xfb0 [ 65.989752][ T419] ? namespace_unlock+0x4f0/0x4f0 [ 65.994791][ T419] ? user_path_at_empty+0x40/0x50 [ 65.999843][ T419] __x64_sys_umount+0x122/0x170 [ 66.004700][ T419] ? path_umount+0xfb0/0xfb0 [ 66.009353][ T419] ? debug_smp_processor_id+0x17/0x20 [ 66.014728][ T419] do_syscall_64+0x34/0x70 [ 66.019251][ T419] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.025297][ T419] RIP: 0033:0x7f1d047a2557 [ 66.029736][ T419] 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 [ 66.049390][ T419] RSP: 002b:00007fffe6353428 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 66.057847][ T419] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1d047a2557 [ 66.066062][ T419] RDX: 00007fffe63534f9 RSI: 000000000000000a RDI: 00007fffe63534f0 [ 66.074024][ T419] RBP: 00007fffe63534f0 R08: 00000000ffffffff R09: 00007fffe63532c0 [ 66.082056][ T419] R10: 0000555556a4cba3 R11: 0000000000000246 R12: 00007f1d047fa1f8 [ 66.090045][ T419] R13: 00007fffe63545b0 R14: 0000555556a4cb00 R15: 00007fffe63545f0 [ 66.098033][ T419] ---[ end trace eb0090bb59c3f936 ]--- [ 66.115502][ C1] !!!! css_killed_ref_fn enqueue(ffff8881144c3400) [ 66.122261][ C1] !!!! css_killed_ref_fn enqueue(ffff8881144c1800) [ 66.128941][ T386] !!!! css_killed_work_fn css_put(ffff8881144c3400) [ 66.135757][ T386] !!!! css_release enqueue(ffff8881144c3400) [ 66.141932][ T386] !!!! css_killed_work_fn css_put(ffff8881144c1800) [ 66.148739][ T386] !!!! css_release enqueue(ffff8881144c1800) [ 66.154951][ T602] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 66.154976][ T608] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 66.162039][ T603] !!!! css_create css ffff88811416dc00 !!!! [ 66.174492][ T603] !!!! css_create css ffff88811416c000 !!!! [ 66.180575][ T603] !!!! css_create css ffff8881144c0c00 !!!! [ 66.186671][ T603] FAULT_INJECTION: forcing a failure. [ 66.186671][ T603] name failslab, interval 1, probability 0, space 0, times 0 [ 66.199536][ T603] CPU: 0 PID: 603 Comm: syz-executor.3 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 66.211842][ T603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.221877][ T603] Call Trace: [ 66.225147][ T603] dump_stack_lvl+0x1e2/0x24b [ 66.229814][ T603] ? bfq_pos_tree_add_move+0x43e/0x43e [ 66.235272][ T603] ? find_next_bit+0xd6/0x120 [ 66.239934][ T603] ? cpumask_next+0x11/0x30 [ 66.244423][ T603] dump_stack+0x15/0x17 [ 66.248866][ T603] should_fail+0x3c0/0x510 [ 66.253279][ T603] ? percpu_ref_init+0xd0/0x330 [ 66.258134][ T603] __should_failslab+0x9f/0xe0 [ 66.262889][ T603] should_failslab+0x9/0x20 [ 66.267394][ T603] kmem_cache_alloc_trace+0x3a/0x330 [ 66.272655][ T603] percpu_ref_init+0xd0/0x330 [ 66.277309][ T603] ? cgroup_setup_root+0xea0/0xea0 [ 66.282395][ T603] cgroup_apply_control_enable+0x734/0x12e0 [ 66.288292][ T603] cgroup_apply_control+0x93/0x710 [ 66.293391][ T603] ? css_next_child+0x160/0x160 [ 66.298226][ T603] ? dequeue_task_fair+0x7ad/0xb50 [ 66.303326][ T603] ? io_schedule+0x120/0x120 [ 66.307892][ T603] ? kernfs_fop_write_iter+0x15e/0x410 [ 66.313336][ T603] ? __kasan_check_write+0x14/0x20 [ 66.318418][ T603] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 66.323679][ T603] cgroup_subtree_control_write+0xd19/0x1310 [ 66.329647][ T603] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 66.335604][ T603] ? __kasan_check_write+0x14/0x20 [ 66.340687][ T603] ? _copy_from_iter+0x3fb/0xd60 [ 66.345613][ T603] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 66.351580][ T603] cgroup_file_write+0x28e/0x590 [ 66.356490][ T603] ? cgroup_seqfile_stop+0xc0/0xc0 [ 66.361720][ T603] ? mutex_lock+0xa6/0x110 [ 66.366221][ T603] ? mutex_trylock+0xb0/0xb0 [ 66.370826][ T603] ? __kasan_check_write+0x14/0x20 [ 66.375915][ T603] kernfs_fop_write_iter+0x2d0/0x410 [ 66.381294][ T603] ? cgroup_seqfile_stop+0xc0/0xc0 [ 66.386429][ T603] vfs_write+0xc1c/0xf40 [ 66.390672][ T603] ? kernel_write+0x3c0/0x3c0 [ 66.395991][ T603] ? mutex_trylock+0xb0/0xb0 [ 66.400571][ T603] ? __fdget_pos+0x26d/0x310 [ 66.405167][ T603] ? ksys_write+0x77/0x2c0 [ 66.409561][ T603] ksys_write+0x198/0x2c0 [ 66.413885][ T603] ? __ia32_sys_read+0x90/0x90 [ 66.418626][ T603] ? debug_smp_processor_id+0x17/0x20 [ 66.423973][ T603] __x64_sys_write+0x7b/0x90 [ 66.428534][ T603] do_syscall_64+0x34/0x70 [ 66.432925][ T603] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.438789][ T603] RIP: 0033:0x7f157230c0e9 [ 66.443178][ T603] 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 [ 66.462904][ T603] RSP: 002b:00007f1572261168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 66.471302][ T603] RAX: ffffffffffffffda RBX: 00007f157241f030 RCX: 00007f157230c0e9 [ 66.479255][ T603] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 66.487219][ T603] RBP: 00007f15722611d0 R08: 0000000000000000 R09: 0000000000000000 [ 66.495187][ T603] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 66.503183][ T603] R13: 00007fffbdc705cf R14: 00007f1572261300 R15: 0000000000022000 [ 66.513225][ T603] !!!! css_create rcu_enqueue(ffff8881144c0c00) !!!! [ 66.519990][ T603] !!!! control_disable kill_css(ffff88811416dc00) [ 66.526690][ T603] !!!! control_disable kill_css(ffff88811416c000) [ 66.533292][ T603] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 66.555518][ C1] !!!! css_killed_ref_fn enqueue(ffff88811416dc00) [ 66.562149][ C1] !!!! css_killed_ref_fn enqueue(ffff88811416c000) [ 66.568870][ T386] !!!! css_killed_work_fn css_put(ffff88811416dc00) [ 66.575579][ T386] !!!! css_release enqueue(ffff88811416dc00) [ 66.581673][ T386] !!!! css_killed_work_fn css_put(ffff88811416c000) [ 66.588373][ T386] !!!! css_release enqueue(ffff88811416c000) [ 66.594503][ T576] !!!! css_create css ffff8881146fac00 !!!! [ 66.600623][ T576] !!!! css_create css ffff8881146fb400 !!!! [ 66.606717][ T576] !!!! css_create css ffff8881146fa800 !!!! [ 66.612665][ T576] FAULT_INJECTION: forcing a failure. [ 66.612665][ T576] name failslab, interval 1, probability 0, space 0, times 0 [ 66.625452][ T576] CPU: 0 PID: 576 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 66.637060][ T576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.647103][ T576] Call Trace: [ 66.650603][ T576] dump_stack_lvl+0x1e2/0x24b [ 66.655275][ T576] ? bfq_pos_tree_add_move+0x43e/0x43e [ 66.660725][ T576] dump_stack+0x15/0x17 [ 66.664867][ T576] should_fail+0x3c0/0x510 [ 66.669256][ T576] ? __kernfs_new_node+0x99/0x6e0 [ 66.674251][ T576] __should_failslab+0x9f/0xe0 [ 66.678991][ T576] should_failslab+0x9/0x20 [ 66.683468][ T576] __kmalloc_track_caller+0x5f/0x350 [ 66.688729][ T576] kstrdup_const+0x55/0x90 [ 66.693207][ T576] __kernfs_new_node+0x99/0x6e0 [ 66.698119][ T576] ? stack_trace_save+0x1f0/0x1f0 [ 66.703111][ T576] ? kernfs_new_node+0x170/0x170 [ 66.708051][ T576] ? ptr_to_hashval+0x60/0x60 [ 66.712713][ T576] ? snprintf+0xd6/0x120 [ 66.716930][ T576] kernfs_new_node+0x97/0x170 [ 66.721615][ T576] __kernfs_create_file+0x4a/0x270 [ 66.726809][ T576] cgroup_addrm_files+0xab8/0xfe0 [ 66.731904][ T576] ? cgroup_apply_control_enable+0x734/0x12e0 [ 66.737938][ T576] ? cgroup_apply_control+0x93/0x710 [ 66.743212][ T576] ? cgroup_subtree_control_write+0xd19/0x1310 [ 66.749334][ T576] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 66.755457][ T576] ? delete_node+0x759/0x7b0 [ 66.760020][ T576] ? __kasan_check_read+0x11/0x20 [ 66.765012][ T576] ? delete_node+0x759/0x7b0 [ 66.769603][ T576] ? __kasan_check_write+0x14/0x20 [ 66.774866][ T576] ? __radix_tree_replace+0x246/0x2e0 [ 66.780220][ T576] ? idr_get_next+0x4b0/0x4b0 [ 66.784872][ T576] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 66.789869][ T576] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 66.795070][ T576] css_populate_dir+0x137/0x370 [ 66.799898][ T576] cgroup_apply_control_enable+0x629/0x12e0 [ 66.805782][ T576] cgroup_apply_control+0x93/0x710 [ 66.810865][ T576] ? css_next_child+0x160/0x160 [ 66.815689][ T576] ? dequeue_task_fair+0x7ad/0xb50 [ 66.820775][ T576] ? io_schedule+0x120/0x120 [ 66.825429][ T576] ? kernfs_fop_write_iter+0x15e/0x410 [ 66.830861][ T576] ? __kasan_check_write+0x14/0x20 [ 66.835966][ T576] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 66.841239][ T576] cgroup_subtree_control_write+0xd19/0x1310 [ 66.847212][ T576] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 66.853165][ T576] ? __kasan_check_write+0x14/0x20 [ 66.858275][ T576] ? _copy_from_iter+0x3fb/0xd60 [ 66.863197][ T576] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 66.869148][ T576] cgroup_file_write+0x28e/0x590 [ 66.874143][ T576] ? cgroup_seqfile_stop+0xc0/0xc0 [ 66.879236][ T576] ? mutex_lock+0xa6/0x110 [ 66.883632][ T576] ? mutex_trylock+0xb0/0xb0 [ 66.888223][ T576] ? __kasan_check_write+0x14/0x20 [ 66.893454][ T576] kernfs_fop_write_iter+0x2d0/0x410 [ 66.898744][ T576] ? cgroup_seqfile_stop+0xc0/0xc0 [ 66.903958][ T576] vfs_write+0xc1c/0xf40 [ 66.908204][ T576] ? kernel_write+0x3c0/0x3c0 [ 66.912884][ T576] ? mutex_trylock+0xb0/0xb0 [ 66.917618][ T576] ? __fdget_pos+0x26d/0x310 [ 66.922220][ T576] ? ksys_write+0x77/0x2c0 [ 66.926623][ T576] ksys_write+0x198/0x2c0 [ 66.931269][ T576] ? __ia32_sys_read+0x90/0x90 [ 66.936030][ T576] ? debug_smp_processor_id+0x17/0x20 [ 66.941416][ T576] __x64_sys_write+0x7b/0x90 [ 66.946167][ T576] do_syscall_64+0x34/0x70 [ 66.950562][ T576] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.956430][ T576] RIP: 0033:0x7f05b76700e9 [ 66.960824][ T576] 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 [ 66.980750][ T576] RSP: 002b:00007f05b75c5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 66.989150][ T576] RAX: ffffffffffffffda RBX: 00007f05b7783030 RCX: 00007f05b76700e9 [ 66.997297][ T576] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 67.005244][ T576] RBP: 00007f05b75c51d0 R08: 0000000000000000 R09: 0000000000000000 [ 67.013274][ T576] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 67.021222][ T576] R13: 00007fff27b047ef R14: 00007f05b75c5300 R15: 0000000000022000 [ 67.030565][ T576] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 67.037683][ T576] !!!! control_disable kill_css(ffff8881146fac00) [ 67.044228][ T576] !!!! control_disable kill_css(ffff8881146fb400) [ 67.050801][ T576] !!!! control_disable kill_css(ffff8881146fa800) [ 67.057440][ T576] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 67.065275][ T408] ------------[ cut here ]------------ [ 67.070793][ T408] WARNING: CPU: 1 PID: 408 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 67.079741][ T408] Modules linked in: [ 67.083625][ T408] CPU: 1 PID: 408 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 67.095172][ T408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.105238][ T408] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 67.110877][ T408] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 67.130580][ T408] RSP: 0018:ffffc90000b77ba0 EFLAGS: 00010293 [ 67.136649][ T408] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810c0be2c0 [ 67.144699][ T408] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 67.153058][ T408] RBP: ffffc90000b77c70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 67.161218][ T408] R10: fffff5200016ef65 R11: 1ffff9200016ef64 R12: dffffc0000000000 [ 67.169204][ T408] R13: ffff888112da21c0 R14: ffffc90000b77c00 R15: 1ffff9200016ef7c [ 67.177258][ T408] FS: 0000555556225400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 67.186178][ T408] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.192751][ T408] CR2: 00007fff27b0396c CR3: 000000010c09b000 CR4: 00000000003506a0 [ 67.200735][ T408] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.208715][ T408] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.216786][ T408] Call Trace: [ 67.220076][ T408] ? io_schedule+0x120/0x120 [ 67.224662][ T408] ? vfs_submount+0xb0/0xb0 [ 67.229218][ T408] ? shrink_dentry_list+0x4ec/0x500 [ 67.234842][ T408] namespace_unlock+0x448/0x4f0 [ 67.239713][ T408] ? umount_tree+0xf50/0xf50 [ 67.244418][ T408] ? __detach_mounts+0x670/0x670 [ 67.249404][ T408] ? selinux_umount+0xf0/0x130 [ 67.254173][ T408] path_umount+0xf03/0xfb0 [ 67.258694][ T408] ? namespace_unlock+0x4f0/0x4f0 [ 67.263726][ T408] ? user_path_at_empty+0x40/0x50 [ 67.268777][ T408] __x64_sys_umount+0x122/0x170 [ 67.273616][ T408] ? path_umount+0xfb0/0xfb0 [ 67.278226][ T408] do_syscall_64+0x34/0x70 [ 67.282642][ T408] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.288557][ T408] RIP: 0033:0x7f05b7671557 [ 67.293067][ T408] 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 [ 67.312798][ T408] RSP: 002b:00007fff27b03948 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 67.321308][ T408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f05b7671557 [ 67.329388][ T408] RDX: 00007fff27b03a1a RSI: 000000000000000a RDI: 00007fff27b03a10 [ 67.337361][ T408] RBP: 00007fff27b03a10 R08: 00000000ffffffff R09: 00007fff27b037e0 [ 67.345319][ T408] R10: 0000555556226ba3 R11: 0000000000000246 R12: 00007f05b76c91f8 [ 67.353297][ T408] R13: 00007fff27b04ad0 R14: 0000555556226b00 R15: 00007fff27b04b10 [ 67.361368][ T408] ---[ end trace eb0090bb59c3f937 ]--- [ 67.367265][ T408] ------------[ cut here ]------------ [ 67.372828][ T408] WARNING: CPU: 1 PID: 408 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 67.381784][ T408] Modules linked in: [ 67.385496][ C0] !!!! css_killed_ref_fn enqueue(ffff8881146fb400) [ 67.385690][ C1] !!!! css_killed_ref_fn enqueue(ffff8881146fac00) [ 67.392340][ T125] !!!! css_killed_work_fn css_put(ffff8881146fb400) [ 67.398871][ C1] !!!! css_killed_ref_fn enqueue(ffff8881146fa800) [ 67.398936][ T408] CPU: 1 PID: 408 Comm: syz-executor.2 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 67.413463][ T125] !!!! css_release enqueue(ffff8881146fb400) [ 67.423783][ T408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.439885][ T408] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 67.445545][ T408] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 67.465327][ T408] RSP: 0018:ffffc90000b77ca0 EFLAGS: 00010293 [ 67.471420][ T408] RAX: ffffffff81b68afa RBX: 00000000fffffffe RCX: ffff88810c0be2c0 [ 67.479488][ T408] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000 [ 67.487453][ T408] RBP: ffffc90000b77d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 67.495421][ T408] R10: fffff5200016ef85 R11: 1ffff9200016ef84 R12: dffffc0000000000 [ 67.503409][ T408] R13: ffff888112da21c0 R14: ffffc90000b77d00 R15: 1ffff9200016ef9c [ 67.511587][ T408] FS: 0000555556225400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 67.520630][ T408] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.527223][ T408] CR2: 00007fff27b0396c CR3: 000000010c09b000 CR4: 00000000003506a0 [ 67.535239][ T408] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.543516][ T408] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.552030][ T408] Call Trace: [ 67.555313][ T408] ? lockref_get_or_lock+0x340/0x340 [ 67.560674][ T408] ? umount_tree+0xf50/0xf50 [ 67.565256][ T408] ? vfs_submount+0xb0/0xb0 [ 67.569778][ T408] ? dput+0x2b6/0x320 [ 67.573754][ T408] path_umount+0x1fe/0xfb0 [ 67.578188][ T408] ? namespace_unlock+0x4f0/0x4f0 [ 67.583202][ T408] ? user_path_at_empty+0x40/0x50 [ 67.588238][ T408] __x64_sys_umount+0x122/0x170 [ 67.593069][ T408] ? path_umount+0xfb0/0xfb0 [ 67.597856][ T408] do_syscall_64+0x34/0x70 [ 67.602266][ T408] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.608180][ T408] RIP: 0033:0x7f05b7671557 [ 67.612589][ T408] 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 [ 67.633264][ T408] RSP: 002b:00007fff27b03948 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 67.642114][ T408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f05b7671557 [ 67.650170][ T408] RDX: 00007fff27b03a1a RSI: 000000000000000a RDI: 00007fff27b03a10 [ 67.658236][ T408] RBP: 00007fff27b03a10 R08: 00000000ffffffff R09: 00007fff27b037e0 [ 67.666295][ T408] R10: 0000555556226ba3 R11: 0000000000000246 R12: 00007f05b76c91f8 [ 67.674248][ T408] R13: 00007fff27b04ad0 R14: 0000555556226b00 R15: 00007fff27b04b10 [ 67.682212][ T408] ---[ end trace eb0090bb59c3f938 ]--- [ 67.687716][ T383] !!!! css_killed_work_fn css_put(ffff8881146fac00) [ 67.694381][ T383] !!!! css_release enqueue(ffff8881146fac00) [ 67.701072][ T383] !!!! css_killed_work_fn css_put(ffff8881146fa800) [ 67.707942][ T383] !!!! css_release enqueue(ffff8881146fa800) [ 67.714289][ T590] !!!! css_create css ffff888114687c00 !!!! [ 67.720478][ T590] !!!! css_create css ffff888114d46400 !!!! [ 67.726569][ T590] !!!! css_create css ffff888114d45000 !!!! [ 67.732599][ T590] FAULT_INJECTION: forcing a failure. [ 67.732599][ T590] name failslab, interval 1, probability 0, space 0, times 0 [ 67.745726][ T590] CPU: 0 PID: 590 Comm: syz-executor.5 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 67.757245][ T590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.767303][ T590] Call Trace: [ 67.770575][ T590] dump_stack_lvl+0x1e2/0x24b [ 67.775223][ T590] ? bfq_pos_tree_add_move+0x43e/0x43e [ 67.780663][ T590] ? serial8250_console_write+0xae0/0xe60 [ 67.786363][ T590] ? record_print_text+0x266/0x420 [ 67.791544][ T590] dump_stack+0x15/0x17 [ 67.795677][ T590] should_fail+0x3c0/0x510 [ 67.800067][ T590] ? __kernfs_new_node+0x99/0x6e0 [ 67.805084][ T590] __should_failslab+0x9f/0xe0 [ 67.809838][ T590] should_failslab+0x9/0x20 [ 67.814330][ T590] __kmalloc_track_caller+0x5f/0x350 [ 67.819606][ T590] kstrdup_const+0x55/0x90 [ 67.824015][ T590] __kernfs_new_node+0x99/0x6e0 [ 67.828861][ T590] ? stack_trace_save+0x1f0/0x1f0 [ 67.833880][ T590] ? kernfs_new_node+0x170/0x170 [ 67.838801][ T590] ? ptr_to_hashval+0x60/0x60 [ 67.843472][ T590] ? snprintf+0xd6/0x120 [ 67.847787][ T590] kernfs_new_node+0x97/0x170 [ 67.852449][ T590] __kernfs_create_file+0x4a/0x270 [ 67.857533][ T590] cgroup_addrm_files+0xab8/0xfe0 [ 67.862540][ T590] ? cgroup_apply_control_enable+0x734/0x12e0 [ 67.868579][ T590] ? cgroup_apply_control+0x93/0x710 [ 67.873934][ T590] ? cgroup_subtree_control_write+0xd19/0x1310 [ 67.880081][ T590] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 67.886218][ T590] ? delete_node+0x759/0x7b0 [ 67.890791][ T590] ? __kasan_check_read+0x11/0x20 [ 67.895799][ T590] ? delete_node+0x759/0x7b0 [ 67.900365][ T590] ? __kasan_check_write+0x14/0x20 [ 67.905458][ T590] ? __radix_tree_replace+0x246/0x2e0 [ 67.910899][ T590] ? idr_get_next+0x4b0/0x4b0 [ 67.917494][ T590] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 67.922498][ T590] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 67.927690][ T590] css_populate_dir+0x137/0x370 [ 67.932562][ T590] cgroup_apply_control_enable+0x629/0x12e0 [ 67.938434][ T590] cgroup_apply_control+0x93/0x710 [ 67.943521][ T590] ? css_next_child+0x160/0x160 [ 67.948447][ T590] ? dequeue_task_fair+0x7ad/0xb50 [ 67.953534][ T590] ? io_schedule+0x120/0x120 [ 67.958112][ T590] ? kernfs_fop_write_iter+0x15e/0x410 [ 67.963548][ T590] ? __kasan_check_write+0x14/0x20 [ 67.968652][ T590] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 67.973918][ T590] cgroup_subtree_control_write+0xd19/0x1310 [ 67.979879][ T590] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 67.985834][ T590] ? __kasan_check_write+0x14/0x20 [ 67.991012][ T590] ? _copy_from_iter+0x3fb/0xd60 [ 67.995926][ T590] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 68.001970][ T590] cgroup_file_write+0x28e/0x590 [ 68.007872][ T590] ? cgroup_seqfile_stop+0xc0/0xc0 [ 68.012959][ T590] ? mutex_lock+0xa6/0x110 [ 68.017525][ T590] ? mutex_trylock+0xb0/0xb0 [ 68.022091][ T590] ? __kasan_check_write+0x14/0x20 [ 68.027187][ T590] kernfs_fop_write_iter+0x2d0/0x410 [ 68.032451][ T590] ? cgroup_seqfile_stop+0xc0/0xc0 [ 68.037541][ T590] vfs_write+0xc1c/0xf40 [ 68.041763][ T590] ? kernel_write+0x3c0/0x3c0 [ 68.046414][ T590] ? mutex_trylock+0xb0/0xb0 [ 68.050993][ T590] ? __fdget_pos+0x26d/0x310 [ 68.055566][ T590] ? ksys_write+0x77/0x2c0 [ 68.059959][ T590] ksys_write+0x198/0x2c0 [ 68.064262][ T590] ? __ia32_sys_read+0x90/0x90 [ 68.069010][ T590] ? debug_smp_processor_id+0x17/0x20 [ 68.074370][ T590] __x64_sys_write+0x7b/0x90 [ 68.079021][ T590] do_syscall_64+0x34/0x70 [ 68.083413][ T590] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.089290][ T590] RIP: 0033:0x7fb14d3820e9 [ 68.093684][ T590] 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 [ 68.113630][ T590] RSP: 002b:00007fb14d2d7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 68.122035][ T590] RAX: ffffffffffffffda RBX: 00007fb14d495030 RCX: 00007fb14d3820e9 [ 68.129993][ T590] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 68.138204][ T590] RBP: 00007fb14d2d71d0 R08: 0000000000000000 R09: 0000000000000000 [ 68.146153][ T590] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 68.154195][ T590] R13: 00007ffc3daf25ff R14: 00007fb14d2d7300 R15: 0000000000022000 [ 68.163915][ T590] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 68.170996][ T590] !!!! control_disable kill_css(ffff888114687c00) [ 68.177558][ T590] !!!! control_disable kill_css(ffff888114d46400) [ 68.184076][ T590] !!!! control_disable kill_css(ffff888114d45000) [ 68.190624][ T590] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 68.225536][ C0] !!!! css_killed_ref_fn enqueue(ffff888114687c00) [ 68.232295][ C0] !!!! css_killed_ref_fn enqueue(ffff888114d46400) [ 68.239023][ C0] !!!! css_killed_ref_fn enqueue(ffff888114d45000) [ 68.245719][ T437] !!!! css_killed_work_fn css_put(ffff888114687c00) [ 68.252495][ T437] !!!! css_release enqueue(ffff888114687c00) [ 68.258697][ T437] !!!! css_killed_work_fn css_put(ffff888114d46400) [ 68.266098][ T437] !!!! css_release enqueue(ffff888114d46400) [ 68.272374][ T437] !!!! css_killed_work_fn css_put(ffff888114d45000) [ 68.279164][ T437] !!!! css_release enqueue(ffff888114d45000) [ 68.285652][ T599] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 68.285670][ T621] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 68.292382][ T600] !!!! css_create css ffff888114f1e400 !!!! [ 68.304615][ T600] !!!! css_create css ffff888114f1c000 !!!! [ 68.310556][ T600] !!!! css_create css ffff888114d45c00 !!!! [ 68.316657][ T600] FAULT_INJECTION: forcing a failure. [ 68.316657][ T600] name failslab, interval 1, probability 0, space 0, times 0 [ 68.329327][ T600] CPU: 1 PID: 600 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 68.340844][ T600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.350975][ T600] Call Trace: [ 68.354260][ T600] dump_stack_lvl+0x1e2/0x24b [ 68.359098][ T600] ? bfq_pos_tree_add_move+0x43e/0x43e [ 68.364593][ T600] dump_stack+0x15/0x17 [ 68.368832][ T600] should_fail+0x3c0/0x510 [ 68.373232][ T600] ? __kernfs_new_node+0x99/0x6e0 [ 68.378254][ T600] __should_failslab+0x9f/0xe0 [ 68.383024][ T600] should_failslab+0x9/0x20 [ 68.387511][ T600] __kmalloc_track_caller+0x5f/0x350 [ 68.392795][ T600] kstrdup_const+0x55/0x90 [ 68.397197][ T600] __kernfs_new_node+0x99/0x6e0 [ 68.402032][ T600] ? stack_trace_save+0x1f0/0x1f0 [ 68.407060][ T600] ? kernfs_new_node+0x170/0x170 [ 68.411990][ T600] ? ptr_to_hashval+0x60/0x60 [ 68.416768][ T600] ? snprintf+0xd6/0x120 [ 68.421002][ T600] kernfs_new_node+0x97/0x170 [ 68.425793][ T600] __kernfs_create_file+0x4a/0x270 [ 68.430905][ T600] cgroup_addrm_files+0xab8/0xfe0 [ 68.435957][ T600] ? cgroup_apply_control_enable+0x734/0x12e0 [ 68.442150][ T600] ? cgroup_apply_control+0x93/0x710 [ 68.447555][ T600] ? cgroup_subtree_control_write+0xd19/0x1310 [ 68.453702][ T600] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 68.459929][ T600] ? delete_node+0x759/0x7b0 [ 68.464544][ T600] ? __kasan_check_read+0x11/0x20 [ 68.469569][ T600] ? delete_node+0x759/0x7b0 [ 68.474152][ T600] ? __kasan_check_write+0x14/0x20 [ 68.479254][ T600] ? __radix_tree_replace+0x246/0x2e0 [ 68.484609][ T600] ? idr_get_next+0x4b0/0x4b0 [ 68.489272][ T600] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 68.494468][ T600] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 68.499732][ T600] css_populate_dir+0x137/0x370 [ 68.504562][ T600] cgroup_apply_control_enable+0x629/0x12e0 [ 68.510439][ T600] cgroup_apply_control+0x93/0x710 [ 68.515541][ T600] ? css_next_child+0x160/0x160 [ 68.520465][ T600] ? io_schedule+0x120/0x120 [ 68.525055][ T600] ? kernfs_fop_write_iter+0x15e/0x410 [ 68.530514][ T600] ? __kasan_check_write+0x14/0x20 [ 68.535612][ T600] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 68.540899][ T600] cgroup_subtree_control_write+0xd19/0x1310 [ 68.546890][ T600] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 68.552871][ T600] ? __kasan_check_write+0x14/0x20 [ 68.557976][ T600] ? _copy_from_iter+0x3fb/0xd60 [ 68.562953][ T600] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 68.568921][ T600] cgroup_file_write+0x28e/0x590 [ 68.573864][ T600] ? cgroup_seqfile_stop+0xc0/0xc0 [ 68.578962][ T600] ? mutex_lock+0xa6/0x110 [ 68.583374][ T600] ? mutex_trylock+0xb0/0xb0 [ 68.588041][ T600] ? __kasan_check_write+0x14/0x20 [ 68.593133][ T600] kernfs_fop_write_iter+0x2d0/0x410 [ 68.598400][ T600] ? cgroup_seqfile_stop+0xc0/0xc0 [ 68.603544][ T600] vfs_write+0xc1c/0xf40 [ 68.607783][ T600] ? kernel_write+0x3c0/0x3c0 [ 68.612629][ T600] ? mutex_trylock+0xb0/0xb0 [ 68.617290][ T600] ? __fdget_pos+0x26d/0x310 [ 68.621952][ T600] ? ksys_write+0x77/0x2c0 [ 68.626552][ T600] ksys_write+0x198/0x2c0 [ 68.630948][ T600] ? __ia32_sys_read+0x90/0x90 [ 68.635691][ T600] ? debug_smp_processor_id+0x17/0x20 [ 68.641056][ T600] __x64_sys_write+0x7b/0x90 [ 68.645632][ T600] do_syscall_64+0x34/0x70 [ 68.650036][ T600] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.656009][ T600] RIP: 0033:0x7fee9f29f0e9 [ 68.660499][ T600] 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 [ 68.680092][ T600] RSP: 002b:00007fee9f1f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 68.689273][ T600] RAX: ffffffffffffffda RBX: 00007fee9f3b2030 RCX: 00007fee9f29f0e9 [ 68.697231][ T600] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 68.705305][ T600] RBP: 00007fee9f1f41d0 R08: 0000000000000000 R09: 0000000000000000 [ 68.713265][ T600] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 68.721225][ T600] R13: 00007fff0617897f R14: 00007fee9f1f4300 R15: 0000000000022000 [ 68.730492][ T600] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 68.737620][ T600] !!!! control_disable kill_css(ffff888114f1e400) [ 68.744263][ T600] !!!! control_disable kill_css(ffff888114f1c000) [ 68.750851][ T600] !!!! control_disable kill_css(ffff888114d45c00) [ 68.757435][ T600] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 68.765658][ T418] ------------[ cut here ]------------ [ 68.771137][ T418] WARNING: CPU: 1 PID: 418 at fs/namespace.c:1168 mntput_no_expire+0x48a/0x6c0 [ 68.780084][ C1] !!!! css_killed_ref_fn enqueue(ffff888114f1e400) [ 68.780109][ C1] !!!! css_killed_ref_fn enqueue(ffff888114f1c000) [ 68.793317][ T418] Modules linked in: [ 68.797261][ T418] CPU: 1 PID: 418 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 68.808823][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.819102][ T418] RIP: 0010:mntput_no_expire+0x48a/0x6c0 [ 68.824900][ T418] Code: 48 c7 c2 40 05 04 86 e8 b4 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 b5 b9 a2 ff e9 ea fc ff ff [ 68.844911][ T418] RSP: 0018:ffffc90000f37ca0 EFLAGS: 00010293 [ 68.851107][ T418] RAX: ffffffff81b68afa RBX: 00000000ffffffff RCX: ffff88810658a780 [ 68.859119][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 68.867146][ T418] RBP: ffffc90000f37d70 R08: ffffffff81b687e8 R09: 0000000000000003 [ 68.875136][ T418] R10: fffff520001e6f85 R11: 1ffff920001e6f84 R12: dffffc0000000000 [ 68.883206][ T418] R13: ffff888112da3dc0 R14: ffffc90000f37d00 R15: 1ffff920001e6f9c [ 68.891633][ T418] FS: 0000555556246400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 68.900578][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.907199][ T418] CR2: 00007f1572260ff8 CR3: 000000010bbca000 CR4: 00000000003506a0 [ 68.915172][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.923160][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.931407][ T418] Call Trace: [ 68.934701][ T418] ? lockref_get_or_lock+0x340/0x340 [ 68.940016][ T418] ? umount_tree+0xf50/0xf50 [ 68.944694][ T418] ? vfs_submount+0xb0/0xb0 [ 68.949231][ T418] ? dput+0x2b6/0x320 [ 68.953302][ T418] path_umount+0x1fe/0xfb0 [ 68.957732][ T418] ? namespace_unlock+0x4f0/0x4f0 [ 68.962773][ T418] ? user_path_at_empty+0x40/0x50 [ 68.967912][ T418] __x64_sys_umount+0x122/0x170 [ 68.972793][ T418] ? path_umount+0xfb0/0xfb0 [ 68.977427][ T418] ? debug_smp_processor_id+0x17/0x20 [ 68.982825][ T418] do_syscall_64+0x34/0x70 [ 68.987271][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.993167][ T418] RIP: 0033:0x7fee9f2a0557 [ 68.997606][ 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 [ 69.017310][ T418] RSP: 002b:00007fff06177ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 69.025754][ T418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fee9f2a0557 [ 69.033810][ T418] RDX: 00007fff06177ba9 RSI: 000000000000000a RDI: 00007fff06177ba0 [ 69.041797][ T418] RBP: 00007fff06177ba0 R08: 00000000ffffffff R09: 00007fff06177970 [ 69.049801][ T418] R10: 0000555556247ba3 R11: 0000000000000246 R12: 00007fee9f2f81f8 [ 69.057798][ T418] R13: 00007fff06178c60 R14: 0000555556247b00 R15: 00007fff06178ca0 [ 69.066411][ T418] ---[ end trace eb0090bb59c3f939 ]--- [ 69.071965][ T386] !!!! css_killed_work_fn css_put(ffff888114f1e400) [ 69.075574][ T418] ------------[ cut here ]------------ [ 69.078866][ T386] !!!! css_release enqueue(ffff888114f1e400) [ 69.084395][ T418] WARNING: CPU: 0 PID: 418 at fs/namespace.c:1109 cleanup_mnt+0x4c5/0x510 [ 69.090181][ C1] !!!! css_killed_ref_fn enqueue(ffff888114d45c00) [ 69.090421][ T383] !!!! css_killed_work_fn css_put(ffff888114f1c000) [ 69.099082][ T418] Modules linked in: [ 69.105443][ T383] !!!! css_release enqueue(ffff888114f1c000) [ 69.112381][ T418] [ 69.124677][ T418] CPU: 0 PID: 418 Comm: syz-executor.1 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 69.136647][ T386] !!!! css_killed_work_fn css_put(ffff888114d45c00) [ 69.136842][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.153455][ T609] !!!! css_create css ffff8881150d1000 !!!! [ 69.155556][ T418] RIP: 0010:cleanup_mnt+0x4c5/0x510 [ 69.159510][ T609] !!!! css_create css ffff8881150d2400 !!!! [ 69.164624][ 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 d8 d9 5e 86 80 e1 07 80 c1 03 38 c1 [ 69.170499][ T609] !!!! css_create css ffff8881150d0000 !!!! [ 69.190681][ T418] RSP: 0018:ffffc90000f37e30 EFLAGS: 00010293 [ 69.196604][ T609] FAULT_INJECTION: forcing a failure. [ 69.196604][ T609] name failslab, interval 1, probability 0, space 0, times 0 [ 69.202483][ T418] RAX: ffffffff81b7a4d5 RBX: ffffe8ffffd43034 RCX: ffff88810658a780 [ 69.215237][ T609] CPU: 0 PID: 609 Comm: syz-executor.0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 69.223543][ T418] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 69.234790][ T609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.234794][ T609] Call Trace: [ 69.234812][ T609] dump_stack_lvl+0x1e2/0x24b [ 69.234823][ T609] ? bfq_pos_tree_add_move+0x43e/0x43e [ 69.234840][ T609] dump_stack+0x15/0x17 [ 69.243152][ T418] RBP: ffffc90000f37e80 R08: ffffffff81b7a1b3 R09: 0000000000000003 [ 69.252931][ T609] should_fail+0x3c0/0x510 [ 69.252943][ T609] ? __kernfs_new_node+0x99/0x6e0 [ 69.252953][ T609] __should_failslab+0x9f/0xe0 [ 69.252970][ T609] should_failslab+0x9/0x20 [ 69.256535][ T418] R10: fffff520001e6fc5 R11: 1ffff920001e6fc4 R12: ffff888112da3e28 [ 69.260971][ T609] __kmalloc_track_caller+0x5f/0x350 [ 69.260989][ T609] kstrdup_const+0x55/0x90 [ 69.266622][ T418] R13: 0000000000000008 R14: dffffc0000000000 R15: 00000000ffffffff [ 69.270575][ T609] __kernfs_new_node+0x99/0x6e0 [ 69.270592][ T609] ? stack_trace_save+0x1f0/0x1f0 [ 69.278884][ T418] FS: 0000555556246400(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 69.283020][ T609] ? kernfs_new_node+0x170/0x170 [ 69.283039][ T609] ? ptr_to_hashval+0x60/0x60 [ 69.288272][ T418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.292798][ T609] ? snprintf+0xd6/0x120 [ 69.292815][ T609] kernfs_new_node+0x97/0x170 [ 69.297485][ T418] CR2: 00007f1572260ff8 CR3: 000000010bbca000 CR4: 00000000003506a0 [ 69.305237][ T609] __kernfs_create_file+0x4a/0x270 [ 69.305254][ T609] cgroup_addrm_files+0xab8/0xfe0 [ 69.310720][ T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.315040][ T609] ? cgroup_apply_control_enable+0x734/0x12e0 [ 69.315056][ T609] ? cgroup_apply_control+0x93/0x710 [ 69.323211][ T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.328191][ T609] ? cgroup_subtree_control_write+0xd19/0x1310 [ 69.328203][ T609] ? trace_raw_output_cgroup_event+0x1f0/0x1f0 [ 69.328218][ T609] ? delete_node+0x759/0x7b0 [ 69.333451][ T418] Call Trace: [ 69.342131][ T609] ? __kasan_check_read+0x11/0x20 [ 69.342140][ T609] ? delete_node+0x759/0x7b0 [ 69.342149][ T609] ? __kasan_check_write+0x14/0x20 [ 69.342164][ T609] ? __radix_tree_replace+0x246/0x2e0 [ 69.347348][ T418] __cleanup_mnt+0x19/0x20 [ 69.351729][ T609] ? idr_get_next+0x4b0/0x4b0 [ 69.351746][ T609] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 69.358520][ T418] task_work_run+0x147/0x1b0 [ 69.362533][ T609] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 69.362551][ T609] css_populate_dir+0x137/0x370 [ 69.367417][ T418] exit_to_user_mode_loop+0xc8/0xe0 [ 69.375423][ T609] cgroup_apply_control_enable+0x629/0x12e0 [ 69.375436][ T609] cgroup_apply_control+0x93/0x710 [ 69.375455][ T609] ? css_next_child+0x160/0x160 [ 69.381718][ T418] syscall_exit_to_user_mode+0x77/0xa0 [ 69.386339][ T609] ? set_next_entity+0xc5/0x390 [ 69.386350][ T609] ? io_schedule+0x120/0x120 [ 69.386360][ T609] ? kernfs_fop_write_iter+0x15e/0x410 [ 69.386372][ T609] ? __kasan_check_write+0x14/0x20 [ 69.386390][ T609] ? cgroup_kn_lock_live+0x1b0/0x2f0 [ 69.394768][ T418] do_syscall_64+0x40/0x70 [ 69.400613][ T609] cgroup_subtree_control_write+0xd19/0x1310 [ 69.400625][ T609] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 69.400636][ T609] ? __kasan_check_write+0x14/0x20 [ 69.400647][ T609] ? _copy_from_iter+0x3fb/0xd60 [ 69.400656][ T609] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 69.400674][ T609] cgroup_file_write+0x28e/0x590 [ 69.406366][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 69.413991][ T609] ? cgroup_seqfile_stop+0xc0/0xc0 [ 69.414008][ T609] ? mutex_lock+0xa6/0x110 [ 69.420369][ T418] RIP: 0033:0x7fee9f2a0557 [ 69.426268][ T609] ? mutex_trylock+0xb0/0xb0 [ 69.426279][ T609] ? __kasan_check_write+0x14/0x20 [ 69.426290][ T609] kernfs_fop_write_iter+0x2d0/0x410 [ 69.426306][ T609] ? cgroup_seqfile_stop+0xc0/0xc0 [ 69.431585][ 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 [ 69.434564][ T609] vfs_write+0xc1c/0xf40 [ 69.434580][ T609] ? kernel_write+0x3c0/0x3c0 [ 69.439777][ T418] RSP: 002b:00007fff06177ad8 EFLAGS: 00000246 [ 69.444141][ T609] ? mutex_trylock+0xb0/0xb0 [ 69.444158][ T609] ? __fdget_pos+0x26d/0x310 [ 69.449456][ T418] ORIG_RAX: 00000000000000a6 [ 69.454682][ T609] ? ksys_write+0x77/0x2c0 [ 69.454697][ T609] ksys_write+0x198/0x2c0 [ 69.459390][ T418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fee9f2a0557 [ 69.464088][ T609] ? __ia32_sys_read+0x90/0x90 [ 69.464099][ T609] ? debug_smp_processor_id+0x17/0x20 [ 69.464117][ T609] __x64_sys_write+0x7b/0x90 [ 69.469497][ T418] RDX: 00007fff06177ba9 RSI: 000000000000000a RDI: 00007fff06177ba0 [ 69.473783][ T609] do_syscall_64+0x34/0x70 [ 69.473803][ T609] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 69.479337][ T418] RBP: 00007fff06177ba0 R08: 00000000ffffffff R09: 00007fff06177970 [ 69.483817][ T609] RIP: 0033:0x7f1d047a10e9 [ 69.483829][ T609] 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 [ 69.483844][ T609] RSP: 002b:00007f1d046f6168 EFLAGS: 00000246 [ 69.489362][ T418] R10: 0000555556247ba3 R11: 0000000000000246 R12: 00007fee9f2f81f8 [ 69.495261][ T609] ORIG_RAX: 0000000000000001 [ 69.495270][ T609] RAX: ffffffffffffffda RBX: 00007f1d048b4030 RCX: 00007f1d047a10e9 [ 69.495284][ T609] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 69.500682][ T418] R13: 00007fff06178c60 R14: 0000555556247b00 R15: 00007fff06178ca0 [ 69.505217][ T609] RBP: 00007f1d046f61d0 R08: 0000000000000000 R09: 0000000000000000 [ 69.505224][ T609] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 69.505238][ T609] R13: 00007fffe63542cf R14: 00007f1d046f6300 R15: 0000000000022000 [ 69.511095][ T418] ---[ end trace eb0090bb59c3f93a ]--- [ 69.526920][ T609] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 69.825780][ T609] !!!! control_disable kill_css(ffff8881150d1000) [ 69.832597][ T609] !!!! control_disable kill_css(ffff8881150d2400) [ 69.839219][ T609] !!!! control_disable kill_css(ffff8881150d0000) [ 69.845768][ T609] !!!! cgroup_kn_unlock css_put(ffffffff85fabeb0) [ 69.885634][ C0] !!!! css_killed_ref_fn enqueue(ffff8881150d1000) [ 69.892443][ C0] !!!! css_killed_ref_fn enqueue(ffff8881150d2400) [ 69.899189][ C0] !!!! css_killed_ref_fn enqueue(ffff8881150d0000) [ 69.905814][ C0] !!!! css_release enqueue(ffff8881150d0000) [ 69.911882][ C0] list_add corruption. prev->next should be next (ffff8881f725c060), but was ffff8881150d0070. (prev=ffff8881150d0070). [ 69.924488][ C0] ------------[ cut here ]------------ [ 69.929962][ C0] kernel BUG at lib/list_debug.c:28! [ 69.935250][ C0] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 69.941304][ C0] CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 [ 69.953100][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.963152][ C0] RIP: 0010:__list_add_valid+0xc6/0xd0 [ 69.968589][ C0] Code: 48 c7 c7 80 db 43 85 4c 89 e6 4c 89 f1 31 c0 e8 8d 10 40 02 0f 0b 48 c7 c7 40 dc 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 [ 69.988443][ C0] RSP: 0018:ffffc900000c77e0 EFLAGS: 00010046 [ 69.994504][ C0] RAX: 0000000000000075 RBX: ffff8881f725c068 RCX: 6e4af497fd7b9a00 [ 70.002456][ C0] RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 [ 70.010416][ C0] RBP: ffffc900000c7808 R08: ffffffff8153b2f8 R09: ffffed103ee44e83 [ 70.018498][ C0] R10: ffffed103ee44e83 R11: 1ffff1103ee44e82 R12: ffff8881150d0070 [ 70.026550][ C0] R13: dffffc0000000000 R14: ffff8881f725c060 R15: ffff8881150d0070 [ 70.034564][ C0] FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 70.043656][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.050252][ C0] CR2: 00007fff06178bb8 CR3: 000000010bbca000 CR4: 00000000003506b0 [ 70.058298][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.066252][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.074216][ C0] Call Trace: [ 70.077502][ C0] insert_work+0x107/0x330 [ 70.082009][ C0] __queue_work+0x971/0xd30 [ 70.086515][ C0] queue_work_on+0xf2/0x150 [ 70.091004][ C0] ? wq_worker_last_func+0x50/0x50 [ 70.096120][ C0] ? __alloc_reserved_percpu+0x30/0x30 [ 70.101886][ C0] css_release+0xc0/0xd0 [ 70.106143][ C0] percpu_ref_switch_to_atomic_rcu+0x5a2/0x5b0 [ 70.112406][ C0] ? percpu_ref_noop_confirm_switch+0x10/0x10 [ 70.118641][ C0] rcu_do_batch+0x4f8/0xbc0 [ 70.123130][ C0] ? local_bh_enable+0x20/0x20 [ 70.127877][ C0] ? _raw_spin_lock_irqsave+0xf8/0x210 [ 70.133347][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 70.139134][ C0] ? rcu_report_qs_rnp+0x3a3/0x3b0 [ 70.144221][ C0] rcu_core+0x59b/0xe30 [ 70.148363][ C0] ? rcu_cpu_kthread_park+0x90/0x90 [ 70.153538][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 70.158719][ C0] ? sched_clock+0x3a/0x40 [ 70.163117][ C0] ? sched_clock_cpu+0x1b/0x3b0 [ 70.167946][ C0] ? irqtime_account_irq+0x76/0x270 [ 70.173215][ C0] rcu_core_si+0x9/0x10 [ 70.177368][ C0] __do_softirq+0x27e/0x596 [ 70.181856][ C0] ? ksoftirqd_should_run+0x20/0x20 [ 70.187060][ C0] run_ksoftirqd+0x23/0x30 [ 70.191457][ C0] smpboot_thread_fn+0x551/0x930 [ 70.196375][ C0] ? __sched_text_start+0x8/0x8 [ 70.201291][ C0] ? cpu_report_death+0x1a0/0x1a0 [ 70.206295][ C0] ? schedule+0x162/0x1e0 [ 70.210976][ C0] ? __kasan_check_read+0x11/0x20 [ 70.216153][ C0] ? __kthread_parkme+0x194/0x1d0 [ 70.221156][ C0] kthread+0x349/0x3d0 [ 70.225289][ C0] ? cpu_report_death+0x1a0/0x1a0 [ 70.230307][ C0] ? kthread_blkcg+0xd0/0xd0 [ 70.234916][ C0] ret_from_fork+0x1f/0x30 [ 70.239335][ C0] Modules linked in: [ 70.243227][ C0] ---[ end trace eb0090bb59c3f93b ]--- [ 70.248679][ C0] RIP: 0010:__list_add_valid+0xc6/0xd0 [ 70.254204][ C0] Code: 48 c7 c7 80 db 43 85 4c 89 e6 4c 89 f1 31 c0 e8 8d 10 40 02 0f 0b 48 c7 c7 40 dc 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 [ 70.274062][ C0] RSP: 0018:ffffc900000c77e0 EFLAGS: 00010046 [ 70.280117][ C0] RAX: 0000000000000075 RBX: ffff8881f725c068 RCX: 6e4af497fd7b9a00 [ 70.288069][ C0] RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 [ 70.296108][ C0] RBP: ffffc900000c7808 R08: ffffffff8153b2f8 R09: ffffed103ee44e83 [ 70.304150][ C0] R10: ffffed103ee44e83 R11: 1ffff1103ee44e82 R12: ffff8881150d0070 [ 70.312116][ C0] R13: dffffc0000000000 R14: ffff8881f725c060 R15: ffff8881150d0070 [ 70.320389][ C0] FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 70.329422][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.335991][ C0] CR2: 00007fff06178bb8 CR3: 000000010bbca000 CR4: 00000000003506b0 [ 70.343946][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.352002][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.360058][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 71.473113][ C0] Shutting down cpus with NMI [ 71.478142][ C0] Kernel Offset: disabled [ 71.482453][ C0] Rebooting in 86400 seconds..