syzkaller syzkaller login: [ 4.939458][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 10.559469][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 12.068367][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 12.068373][ T23] audit: type=1400 audit(1648676170.529:71): avc: denied { transition } for pid=290 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.073545][ T23] audit: type=1400 audit(1648676170.539:72): avc: denied { write } for pid=290 comm="sh" path="pipe:[11420]" dev="pipefs" ino=11420 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 12.649407][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #88!!! [ 12.689401][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 12.810075][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! Warning: Permanently added '10.128.0.146' (ECDSA) to the list of known hosts. [ 1004.621728][ T23] audit: type=1400 audit(1648677163.089:73): avc: denied { execmem } for pid=365 comm="syz-executor157" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 1004.624804][ T23] audit: type=1400 audit(1648677163.089:74): avc: denied { mounton } for pid=365 comm="syz-executor157" path="/syzcgroup/unified" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 1004.625256][ T365] cgroup: Unknown subsys name 'net' [ 1004.627898][ T23] audit: type=1400 audit(1648677163.089:75): avc: denied { mount } for pid=365 comm="syz-executor157" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 1004.631803][ T23] audit: type=1400 audit(1648677163.099:76): avc: denied { unmount } for pid=365 comm="syz-executor157" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 1004.631946][ T365] cgroup: Unknown subsys name 'devices' [ 1004.750378][ T365] cgroup: Unknown subsys name 'hugetlb' [ 1004.755955][ T365] cgroup: Unknown subsys name 'rlimit' [ 1004.880148][ T23] audit: type=1400 audit(1648677163.349:77): avc: denied { mounton } for pid=365 comm="syz-executor157" 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 [ 1004.905294][ T23] audit: type=1400 audit(1648677163.379:78): avc: denied { mount } for pid=365 comm="syz-executor157" 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 [ 1004.940927][ T23] audit: type=1400 audit(1648677163.379:79): avc: denied { setattr } for pid=365 comm="syz-executor157" name="raw-gadget" dev="devtmpfs" ino=165 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 1004.964526][ T23] audit: type=1400 audit(1648677163.379:80): avc: denied { mounton } for pid=372 comm="syz-executor157" 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 [ 1004.988706][ T23] audit: type=1400 audit(1648677163.379:81): avc: denied { mount } for pid=372 comm="syz-executor157" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 1005.012378][ T23] audit: type=1400 audit(1648677163.379:82): avc: denied { mounton } for pid=372 comm="syz-executor157" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 1005.041598][ T372] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.048617][ T372] bridge0: port 1(bridge_slave_0) entered disabled state [ 1005.055975][ T372] device bridge_slave_0 entered promiscuous mode [ 1005.063878][ T372] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.070911][ T372] bridge0: port 2(bridge_slave_1) entered disabled state [ 1005.086391][ T372] device bridge_slave_1 entered promiscuous mode [ 1005.100867][ T377] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.107889][ T377] bridge0: port 1(bridge_slave_0) entered disabled state [ 1005.115221][ T377] device bridge_slave_0 entered promiscuous mode [ 1005.124248][ T375] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.131476][ T375] bridge0: port 1(bridge_slave_0) entered disabled state [ 1005.138716][ T375] device bridge_slave_0 entered promiscuous mode [ 1005.146713][ T375] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.153741][ T375] bridge0: port 2(bridge_slave_1) entered disabled state [ 1005.161101][ T375] device bridge_slave_1 entered promiscuous mode [ 1005.182189][ T376] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.189220][ T376] bridge0: port 1(bridge_slave_0) entered disabled state [ 1005.196411][ T376] device bridge_slave_0 entered promiscuous mode [ 1005.204996][ T376] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.212069][ T376] bridge0: port 2(bridge_slave_1) entered disabled state [ 1005.219362][ T376] device bridge_slave_1 entered promiscuous mode [ 1005.225843][ T377] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.232921][ T377] bridge0: port 2(bridge_slave_1) entered disabled state [ 1005.240156][ T377] device bridge_slave_1 entered promiscuous mode [ 1005.260732][ T374] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.267758][ T374] bridge0: port 1(bridge_slave_0) entered disabled state [ 1005.275130][ T374] device bridge_slave_0 entered promiscuous mode [ 1005.283857][ T374] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.291024][ T374] bridge0: port 2(bridge_slave_1) entered disabled state [ 1005.298250][ T374] device bridge_slave_1 entered promiscuous mode [ 1005.308491][ T373] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.315528][ T373] bridge0: port 1(bridge_slave_0) entered disabled state [ 1005.322867][ T373] device bridge_slave_0 entered promiscuous mode [ 1005.335531][ T373] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.342586][ T373] bridge0: port 2(bridge_slave_1) entered disabled state [ 1005.349895][ T373] device bridge_slave_1 entered promiscuous mode [ 1005.406561][ T372] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.413608][ T372] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1005.420859][ T372] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.427852][ T372] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1005.469018][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1005.477206][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1005.487088][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1005.495297][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1005.502663][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1005.533362][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1005.570641][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1005.590654][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1005.598055][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1005.606440][ T74] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.613462][ T74] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1005.651005][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1005.658407][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1005.667501][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1005.675940][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1005.683838][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1005.692239][ T74] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.699263][ T74] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1005.706716][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1005.714621][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1005.722594][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1005.730764][ T74] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.737758][ T74] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1005.745202][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1005.753319][ T74] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.760329][ T74] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1005.767718][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1005.775933][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1005.783925][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1005.792111][ T74] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.799124][ T74] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1005.806588][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1005.814676][ T74] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.821689][ T74] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1005.829211][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1005.837049][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1005.844977][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1005.853347][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1005.860971][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1005.879272][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1005.887473][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1005.895187][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1005.902649][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1005.910814][ T378] bridge0: port 1(bridge_slave_0) entered blocking state [ 1005.917807][ T378] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1005.925206][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1005.933673][ T378] bridge0: port 2(bridge_slave_1) entered blocking state [ 1005.940690][ T378] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1005.969333][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1005.977213][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1005.985048][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1005.995085][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1006.004501][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready executing program [ 1006.012816][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1006.021150][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1006.039804][ T372] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 1006.053728][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1006.062859][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1006.071183][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1006.079702][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1006.087883][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1006.096101][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1006.104200][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 1006.112517][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1006.120941][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1006.129161][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1006.152649][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1006.161282][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready executing program write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1006.170500][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1006.178745][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1006.187363][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1006.195882][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1006.204373][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1006.212873][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1006.221373][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1006.229775][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1006.238030][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1006.245786][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1006.253553][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1006.262564][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1006.270981][ T378] bridge0: port 1(bridge_slave_0) entered blocking state [ 1006.277982][ T378] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1006.285548][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1006.293917][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1006.302179][ T378] bridge0: port 2(bridge_slave_1) entered blocking state [ 1006.309210][ T378] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1006.316671][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1006.335372][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1006.343441][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1006.351573][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1006.359831][ T74] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 1006.372721][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1006.381477][ T405] FAULT_INJECTION: forcing a failure. [ 1006.381477][ T405] name fail_usercopy, interval 1, probability 0, space 0, times 1 [ 1006.394886][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1006.396747][ T405] CPU: 0 PID: 405 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1006.403176][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1006.412820][ T405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1006.412824][ T405] Call Trace: [ 1006.412851][ T405] dump_stack_lvl+0x1e2/0x24b [ 1006.412867][ T405] ? show_regs_print_info+0x18/0x18 [ 1006.421131][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1006.430670][ T405] dump_stack+0x15/0x1d [ 1006.430680][ T405] should_fail+0x3c0/0x510 [ 1006.430688][ T405] should_fail_usercopy+0x1a/0x20 [ 1006.430703][ T405] copy_page_from_iter+0x3b7/0x770 [ 1006.470029][ T405] pipe_write+0x153e/0x1930 [ 1006.474502][ T405] ? handle_pte_fault+0x5ab/0xdf0 [ 1006.479508][ T405] ? selinux_file_permission+0x431/0x550 [ 1006.485108][ T405] ? pipe_read+0x1030/0x1030 [ 1006.489666][ T405] ? fsnotify_perm+0x67/0x4e0 [ 1006.494312][ T405] ? security_file_permission+0x9d/0xc0 [ 1006.499826][ T405] ? security_file_permission+0xa8/0xc0 [ 1006.505351][ T405] ? iov_iter_init+0x3f/0x120 [ 1006.510002][ T405] vfs_write+0xc02/0xf20 [ 1006.514213][ T405] ? kernel_write+0x3c0/0x3c0 [ 1006.518863][ T405] ? up_read+0x10/0x10 [ 1006.522907][ T405] ? down_read_trylock+0x17a/0x1d0 [ 1006.527989][ T405] ? __init_rwsem+0x1c0/0x1c0 [ 1006.532652][ T405] ? vmacache_update+0xb7/0x120 [ 1006.537472][ T405] ? __kasan_check_read+0x11/0x20 [ 1006.542464][ T405] ? __fdget_pos+0x1fa/0x300 [ 1006.547022][ T405] ksys_write+0x186/0x2b0 [ 1006.551337][ T405] ? __ia32_sys_read+0x90/0x90 [ 1006.556072][ T405] ? debug_smp_processor_id+0x1c/0x20 [ 1006.561413][ T405] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1006.567451][ T405] ? exit_to_user_mode_prepare+0x3b/0xe0 [ 1006.573064][ T405] __x64_sys_write+0x7b/0x90 [ 1006.577634][ T405] do_syscall_64+0x31/0x70 [ 1006.582024][ T405] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1006.587885][ T405] RIP: 0033:0x7f6958806e63 [ 1006.592275][ T405] Code: fc e9 6e fe ff ff bf 01 00 00 00 e8 37 71 00 00 0f 1f 80 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 [ 1006.611858][ T405] RSP: 002b:00007ffd60389d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program executing program executing program executing program [ 1006.620238][ T405] RAX: ffffffffffffffda RBX: 0000000000000059 RCX: 00007f6958806e63 [ 1006.628180][ T405] RDX: 0000000000000059 RSI: 0000555555ad96b0 RDI: 0000000000000001 [ 1006.636135][ T405] RBP: 0000555555ad96b0 R08: 0000000000000000 R09: 0000000000003833 [ 1006.644100][ T405] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000059 [ 1006.652040][ T405] R13: 00007f69588be380 R14: 0000000000000059 R15: 00007f69588c01c0 [ 1006.682067][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 1006.692007][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1006.700445][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 1006.709166][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1006.711321][ T409] FAULT_INJECTION: forcing a failure. [ 1006.711321][ T409] name failslab, interval 1, probability 0, space 0, times 1 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 1006.717530][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 1006.730509][ T409] CPU: 1 PID: 409 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1006.738301][ T378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1006.748270][ T409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1006.748274][ T409] Call Trace: [ 1006.748289][ T409] dump_stack_lvl+0x1e2/0x24b [ 1006.748299][ T409] ? show_regs_print_info+0x18/0x18 [ 1006.748308][ T409] dump_stack+0x15/0x1d [ 1006.748316][ T409] should_fail+0x3c0/0x510 [ 1006.748324][ T409] ? find_css_set+0xb1d/0x18b0 [ 1006.748332][ T409] __should_failslab+0x9f/0xe0 [ 1006.748340][ T409] should_failslab+0x9/0x20 [ 1006.748347][ T409] kmem_cache_alloc_trace+0x42/0x3a0 [ 1006.748353][ T409] ? find_css_set+0xa29/0x18b0 [ 1006.748360][ T409] find_css_set+0xb1d/0x18b0 [ 1006.748368][ T409] ? cgroup_migrate_prepare_dst+0x910/0x910 [ 1006.748378][ T409] ? refcount_dec_if_one+0x1a0/0x1a0 [ 1006.748386][ T409] ? cpumask_next+0x23/0x30 [ 1006.748395][ T409] cgroup_migrate_prepare_dst+0xd1/0x910 [ 1006.748403][ T409] cgroup_apply_control+0x55e/0x730 [ 1006.748412][ T409] ? css_next_child+0x180/0x180 [ 1006.748421][ T409] ? __kasan_check_write+0x14/0x20 [ 1006.748429][ T409] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1006.748439][ T409] cgroup_subtree_control_write+0xd87/0x1310 [ 1006.748450][ T409] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1006.748459][ T409] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1006.748467][ T409] cgroup_file_write+0x28e/0x590 [ 1006.748476][ T409] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1006.748487][ T409] ? mutex_lock+0xa6/0x110 [ 1006.748494][ T409] ? mutex_trylock+0xb0/0xb0 [ 1006.748501][ T409] ? __kasan_check_write+0x14/0x20 [ 1006.748510][ T409] kernfs_fop_write_iter+0x2d0/0x410 [ 1006.748518][ T409] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1006.748529][ T409] vfs_write+0xc02/0xf20 [ 1006.748537][ T409] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1006.748546][ T409] ? kernel_write+0x3c0/0x3c0 [ 1006.748555][ T409] ? do_sys_openat2+0x397/0x470 [ 1006.748563][ T409] ? vmacache_update+0xb7/0x120 [ 1006.748571][ T409] ? __kasan_check_read+0x11/0x20 [ 1006.748579][ T409] ? __fdget_pos+0x27a/0x300 [ 1006.748587][ T409] ksys_write+0x186/0x2b0 [ 1006.748595][ T409] ? __ia32_sys_read+0x90/0x90 [ 1006.748601][ T409] ? debug_smp_processor_id+0x1c/0x20 [ 1006.748608][ T409] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1006.748616][ T409] __x64_sys_write+0x7b/0x90 [ 1006.748626][ T409] do_syscall_64+0x31/0x70 [ 1006.748635][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1006.748642][ T409] RIP: 0033:0x7f695884ccf9 [ 1006.748650][ T409] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1006.748655][ T409] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1006.748667][ T409] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1006.748673][ T409] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 executing program [ 1006.748678][ T409] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1006.748683][ T409] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1006.748688][ T409] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000006 [ 1007.062463][ T398] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 1007.070832][ T398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1007.078579][ T398] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1007.079707][ T408] FAULT_INJECTION: forcing a failure. [ 1007.079707][ T408] name failslab, interval 1, probability 0, space 0, times 0 [ 1007.087048][ T398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1007.099335][ T408] CPU: 1 PID: 408 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1007.117175][ T408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1007.127221][ T408] Call Trace: [ 1007.130491][ T408] dump_stack_lvl+0x1e2/0x24b [ 1007.135143][ T408] ? show_regs_print_info+0x18/0x18 [ 1007.140317][ T408] dump_stack+0x15/0x1d [ 1007.144445][ T408] should_fail+0x3c0/0x510 [ 1007.148835][ T408] ? find_css_set+0xb1d/0x18b0 [ 1007.153598][ T408] __should_failslab+0x9f/0xe0 [ 1007.158332][ T408] should_failslab+0x9/0x20 [ 1007.162820][ T408] kmem_cache_alloc_trace+0x42/0x3a0 [ 1007.168073][ T408] ? find_css_set+0xa29/0x18b0 [ 1007.172807][ T408] find_css_set+0xb1d/0x18b0 [ 1007.177380][ T408] ? cgroup_migrate_prepare_dst+0x910/0x910 [ 1007.183250][ T408] ? refcount_dec_if_one+0x1a0/0x1a0 [ 1007.188510][ T408] ? cpumask_next+0x23/0x30 [ 1007.192989][ T408] cgroup_migrate_prepare_dst+0xd1/0x910 [ 1007.198594][ T408] cgroup_apply_control+0x55e/0x730 [ 1007.203767][ T408] ? css_next_child+0x180/0x180 [ 1007.208593][ T408] ? __kasan_check_write+0x14/0x20 [ 1007.213683][ T408] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1007.218948][ T408] cgroup_subtree_control_write+0xd87/0x1310 [ 1007.224908][ T408] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1007.230861][ T408] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1007.236814][ T408] cgroup_file_write+0x28e/0x590 [ 1007.241725][ T408] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1007.246812][ T408] ? mutex_lock+0xa6/0x110 [ 1007.251219][ T408] ? mutex_trylock+0xb0/0xb0 [ 1007.255780][ T408] ? __kasan_check_write+0x14/0x20 [ 1007.260875][ T408] kernfs_fop_write_iter+0x2d0/0x410 [ 1007.266132][ T408] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1007.271217][ T408] vfs_write+0xc02/0xf20 [ 1007.275434][ T408] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1007.280974][ T408] ? kernel_write+0x3c0/0x3c0 [ 1007.285639][ T408] ? do_sys_openat2+0x397/0x470 [ 1007.290465][ T408] ? vmacache_update+0xb7/0x120 [ 1007.295293][ T408] ? __kasan_check_read+0x11/0x20 [ 1007.300291][ T408] ? __fdget_pos+0x27a/0x300 [ 1007.304857][ T408] ksys_write+0x186/0x2b0 [ 1007.309161][ T408] ? __ia32_sys_read+0x90/0x90 [ 1007.313900][ T408] ? debug_smp_processor_id+0x1c/0x20 [ 1007.319245][ T408] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1007.325371][ T408] __x64_sys_write+0x7b/0x90 [ 1007.329940][ T408] do_syscall_64+0x31/0x70 [ 1007.334334][ T408] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1007.340210][ T408] RIP: 0033:0x7f695884ccf9 [ 1007.344690][ T408] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1007.364271][ T408] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1007.372664][ T408] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1007.380611][ T408] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1007.388556][ T408] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1007.396517][ T408] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1007.404477][ T408] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000001 [ 1007.425614][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1007.433866][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1007.443029][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1007.451373][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1007.451922][ T413] FAULT_INJECTION: forcing a failure. [ 1007.451922][ T413] name failslab, interval 1, probability 0, space 0, times 0 [ 1007.472661][ T413] CPU: 1 PID: 413 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1007.482890][ T413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1007.492920][ T413] Call Trace: [ 1007.496186][ T413] dump_stack_lvl+0x1e2/0x24b [ 1007.500838][ T413] ? show_regs_print_info+0x18/0x18 [ 1007.506005][ T413] dump_stack+0x15/0x1d [ 1007.510147][ T413] should_fail+0x3c0/0x510 [ 1007.514533][ T413] ? find_css_set+0xb1d/0x18b0 [ 1007.519266][ T413] __should_failslab+0x9f/0xe0 [ 1007.523998][ T413] should_failslab+0x9/0x20 [ 1007.528472][ T413] kmem_cache_alloc_trace+0x42/0x3a0 [ 1007.533725][ T413] ? find_css_set+0xb1d/0x18b0 [ 1007.538457][ T413] find_css_set+0xb1d/0x18b0 [ 1007.543018][ T413] ? cgroup_migrate_prepare_dst+0x910/0x910 [ 1007.548880][ T413] ? refcount_dec_if_one+0x1a0/0x1a0 [ 1007.554150][ T413] ? cpumask_next+0x23/0x30 [ 1007.558635][ T413] cgroup_migrate_prepare_dst+0xd1/0x910 [ 1007.564240][ T413] cgroup_apply_control+0x55e/0x730 [ 1007.569408][ T413] ? css_next_child+0x180/0x180 [ 1007.574232][ T413] ? __kasan_check_write+0x14/0x20 [ 1007.579314][ T413] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1007.584568][ T413] cgroup_subtree_control_write+0xd87/0x1310 [ 1007.590518][ T413] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1007.596467][ T413] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1007.602416][ T413] cgroup_file_write+0x28e/0x590 [ 1007.607325][ T413] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1007.612407][ T413] ? mutex_lock+0xa6/0x110 [ 1007.616793][ T413] ? mutex_trylock+0xb0/0xb0 [ 1007.621367][ T413] ? __kasan_check_write+0x14/0x20 [ 1007.626449][ T413] kernfs_fop_write_iter+0x2d0/0x410 [ 1007.631722][ T413] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1007.636809][ T413] vfs_write+0xc02/0xf20 [ 1007.641021][ T413] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1007.646536][ T413] ? kernel_write+0x3c0/0x3c0 [ 1007.651192][ T413] ? do_sys_openat2+0x397/0x470 [ 1007.656013][ T413] ? vmacache_update+0xb7/0x120 [ 1007.660833][ T413] ? __kasan_check_read+0x11/0x20 [ 1007.665825][ T413] ? __fdget_pos+0x27a/0x300 [ 1007.670384][ T413] ksys_write+0x186/0x2b0 [ 1007.674681][ T413] ? __ia32_sys_read+0x90/0x90 [ 1007.679414][ T413] ? debug_smp_processor_id+0x1c/0x20 [ 1007.684768][ T413] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1007.690824][ T413] __x64_sys_write+0x7b/0x90 [ 1007.695385][ T413] do_syscall_64+0x31/0x70 [ 1007.699769][ T413] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1007.705634][ T413] RIP: 0033:0x7f695884ccf9 [ 1007.710021][ T413] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 1007.729596][ T413] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1007.737983][ T413] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1007.745927][ T413] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1007.753870][ T413] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1007.761813][ T413] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1007.769755][ T413] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000002 executing program executing program [ 1007.782702][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1007.790926][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1007.799636][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1007.807872][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1007.816302][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1007.824658][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1007.840599][ T411] FAULT_INJECTION: forcing a failure. [ 1007.840599][ T411] name failslab, interval 1, probability 0, space 0, times 0 [ 1007.855353][ T411] CPU: 1 PID: 411 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1007.865592][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1007.875735][ T411] Call Trace: [ 1007.879013][ T411] dump_stack_lvl+0x1e2/0x24b [ 1007.883665][ T411] ? show_regs_print_info+0x18/0x18 [ 1007.888851][ T411] ? __rcu_read_lock+0x50/0x50 [ 1007.893590][ T411] dump_stack+0x15/0x1d [ 1007.897718][ T411] should_fail+0x3c0/0x510 [ 1007.902116][ T411] ? __kernfs_new_node+0xdb/0x6e0 [ 1007.907133][ T411] __should_failslab+0x9f/0xe0 [ 1007.911872][ T411] should_failslab+0x9/0x20 [ 1007.916346][ T411] kmem_cache_alloc+0x43/0x380 [ 1007.921084][ T411] ? memcpy+0x56/0x70 [ 1007.925036][ T411] __kernfs_new_node+0xdb/0x6e0 [ 1007.929856][ T411] ? vsnprintf+0x1cb4/0x1d60 [ 1007.934413][ T411] ? kernfs_new_node+0x170/0x170 [ 1007.939315][ T411] ? ptr_to_hashval+0x60/0x60 [ 1007.943960][ T411] ? stack_trace_snprint+0xe0/0xe0 [ 1007.949050][ T411] ? pcpu_chunk_refresh_hint+0x793/0x8a0 [ 1007.954655][ T411] ? snprintf+0xd6/0x120 [ 1007.958875][ T411] kernfs_new_node+0x97/0x170 [ 1007.963523][ T411] __kernfs_create_file+0x4a/0x270 [ 1007.968603][ T411] cgroup_addrm_files+0xb01/0x1010 [ 1007.973730][ T411] ? kzalloc+0x20/0x20 [ 1007.977774][ T411] ? node_tag_clear+0x1e2/0x290 [ 1007.982599][ T411] ? delete_node+0x74b/0x7a0 [ 1007.987161][ T411] ? __local_bh_enable_ip+0xa8/0x170 [ 1007.992420][ T411] ? _local_bh_enable+0x30/0x30 [ 1007.997252][ T411] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1008.002246][ T411] css_populate_dir+0x137/0x370 [ 1008.007071][ T411] cgroup_apply_control_enable+0x6cc/0x1230 [ 1008.012933][ T411] cgroup_apply_control+0x93/0x730 [ 1008.018011][ T411] ? css_next_child+0x180/0x180 [ 1008.022842][ T411] ? io_schedule+0x120/0x120 [ 1008.027399][ T411] ? kernfs_fop_write_iter+0x15e/0x410 [ 1008.032838][ T411] ? __kasan_check_write+0x14/0x20 [ 1008.037918][ T411] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1008.043186][ T411] cgroup_subtree_control_write+0xd87/0x1310 [ 1008.049133][ T411] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1008.055083][ T411] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1008.061031][ T411] cgroup_file_write+0x28e/0x590 [ 1008.065945][ T411] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1008.071024][ T411] ? mutex_lock+0xa6/0x110 [ 1008.075411][ T411] ? mutex_trylock+0xb0/0xb0 [ 1008.079972][ T411] ? __kasan_check_write+0x14/0x20 [ 1008.085057][ T411] kernfs_fop_write_iter+0x2d0/0x410 [ 1008.090311][ T411] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1008.095404][ T411] vfs_write+0xc02/0xf20 [ 1008.099629][ T411] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1008.105146][ T411] ? kernel_write+0x3c0/0x3c0 [ 1008.109792][ T411] ? do_sys_openat2+0x397/0x470 [ 1008.114612][ T411] ? vmacache_update+0xb7/0x120 [ 1008.119450][ T411] ? __kasan_check_read+0x11/0x20 [ 1008.124464][ T411] ? __fdget_pos+0x27a/0x300 [ 1008.129024][ T411] ksys_write+0x186/0x2b0 [ 1008.133328][ T411] ? __ia32_sys_read+0x90/0x90 [ 1008.138066][ T411] ? debug_smp_processor_id+0x1c/0x20 [ 1008.143409][ T411] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1008.149446][ T411] __x64_sys_write+0x7b/0x90 [ 1008.154006][ T411] do_syscall_64+0x31/0x70 [ 1008.158393][ T411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1008.164254][ T411] RIP: 0033:0x7f695884ccf9 [ 1008.168640][ T411] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1008.188227][ T411] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1008.196609][ T411] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1008.204552][ T411] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1008.212495][ T411] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1008.220450][ T411] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1008.228402][ T411] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000000 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program executing program [ 1008.240568][ T411] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1008.259549][ T412] FAULT_INJECTION: forcing a failure. [ 1008.259549][ T412] name failslab, interval 1, probability 0, space 0, times 0 [ 1008.272225][ T412] CPU: 1 PID: 412 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1008.282434][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1008.292464][ T412] Call Trace: [ 1008.295746][ T412] dump_stack_lvl+0x1e2/0x24b [ 1008.300411][ T412] ? devkmsg_release+0x127/0x127 [ 1008.305321][ T412] ? show_regs_print_info+0x18/0x18 [ 1008.310490][ T412] dump_stack+0x15/0x1d [ 1008.314619][ T412] should_fail+0x3c0/0x510 [ 1008.319009][ T412] ? __kernfs_new_node+0x99/0x6e0 [ 1008.324005][ T412] __should_failslab+0x9f/0xe0 [ 1008.328744][ T412] should_failslab+0x9/0x20 [ 1008.333219][ T412] __kmalloc_track_caller+0x67/0x3b0 [ 1008.338479][ T412] ? widen_string+0x40/0x380 [ 1008.343043][ T412] kstrdup_const+0x55/0x90 [ 1008.347430][ T412] __kernfs_new_node+0x99/0x6e0 [ 1008.352249][ T412] ? vsnprintf+0x1cb4/0x1d60 [ 1008.356811][ T412] ? kernfs_new_node+0x170/0x170 [ 1008.361716][ T412] ? ptr_to_hashval+0x60/0x60 [ 1008.366361][ T412] ? stack_trace_snprint+0xe0/0xe0 [ 1008.371451][ T412] ? find_next_bit+0x113/0x120 [ 1008.376186][ T412] ? snprintf+0xd6/0x120 [ 1008.380401][ T412] kernfs_new_node+0x97/0x170 [ 1008.385049][ T412] __kernfs_create_file+0x4a/0x270 [ 1008.390129][ T412] cgroup_addrm_files+0xb01/0x1010 [ 1008.395209][ T412] ? kzalloc+0x20/0x20 [ 1008.399251][ T412] ? node_tag_clear+0x1e2/0x290 [ 1008.404087][ T412] ? delete_node+0x74b/0x7a0 [ 1008.408655][ T412] ? __local_bh_enable_ip+0xa8/0x170 [ 1008.413910][ T412] ? _local_bh_enable+0x30/0x30 [ 1008.418731][ T412] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1008.423739][ T412] css_populate_dir+0x137/0x370 [ 1008.428594][ T412] cgroup_apply_control_enable+0x6cc/0x1230 [ 1008.434470][ T412] cgroup_apply_control+0x93/0x730 [ 1008.439552][ T412] ? css_next_child+0x180/0x180 [ 1008.444371][ T412] ? io_schedule+0x120/0x120 [ 1008.448929][ T412] ? kernfs_fop_write_iter+0x15e/0x410 [ 1008.454357][ T412] ? __kasan_check_write+0x14/0x20 [ 1008.459436][ T412] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1008.464691][ T412] cgroup_subtree_control_write+0xd87/0x1310 [ 1008.470647][ T412] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1008.476598][ T412] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1008.482548][ T412] cgroup_file_write+0x28e/0x590 [ 1008.487455][ T412] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1008.492534][ T412] ? mutex_lock+0xa6/0x110 [ 1008.496951][ T412] ? mutex_trylock+0xb0/0xb0 [ 1008.501512][ T412] ? __kasan_check_write+0x14/0x20 [ 1008.506608][ T412] kernfs_fop_write_iter+0x2d0/0x410 [ 1008.513962][ T412] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1008.519052][ T412] vfs_write+0xc02/0xf20 [ 1008.523294][ T412] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1008.528830][ T412] ? kernel_write+0x3c0/0x3c0 [ 1008.533508][ T412] ? do_sys_openat2+0x397/0x470 [ 1008.538329][ T412] ? vmacache_update+0xb7/0x120 [ 1008.543164][ T412] ? __kasan_check_read+0x11/0x20 [ 1008.548157][ T412] ? __fdget_pos+0x27a/0x300 [ 1008.552723][ T412] ksys_write+0x186/0x2b0 [ 1008.557042][ T412] ? __ia32_sys_read+0x90/0x90 [ 1008.561782][ T412] ? debug_smp_processor_id+0x1c/0x20 [ 1008.567124][ T412] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1008.573160][ T412] __x64_sys_write+0x7b/0x90 [ 1008.577732][ T412] do_syscall_64+0x31/0x70 [ 1008.582147][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1008.588024][ T412] RIP: 0033:0x7f695884ccf9 [ 1008.592415][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1008.612007][ T412] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1008.620392][ T412] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1008.628334][ T412] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1008.636281][ T412] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1008.644242][ T412] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1008.652194][ T412] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000007 [ 1008.663246][ T412] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1008.709517][ T416] FAULT_INJECTION: forcing a failure. [ 1008.709517][ T416] name failslab, interval 1, probability 0, space 0, times 0 [ 1008.722148][ T416] CPU: 1 PID: 416 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1008.732363][ T416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1008.742411][ T416] Call Trace: [ 1008.745683][ T416] dump_stack_lvl+0x1e2/0x24b [ 1008.750339][ T416] ? devkmsg_release+0x127/0x127 [ 1008.755248][ T416] ? show_regs_print_info+0x18/0x18 [ 1008.760419][ T416] ? sched_clock_cpu+0x1b/0x3c0 [ 1008.765676][ T416] dump_stack+0x15/0x1d [ 1008.769813][ T416] should_fail+0x3c0/0x510 [ 1008.774203][ T416] ? __kernfs_new_node+0x99/0x6e0 [ 1008.779201][ T416] __should_failslab+0x9f/0xe0 [ 1008.783941][ T416] should_failslab+0x9/0x20 [ 1008.788433][ T416] __kmalloc_track_caller+0x67/0x3b0 [ 1008.793699][ T416] ? widen_string+0x40/0x380 [ 1008.798281][ T416] kstrdup_const+0x55/0x90 [ 1008.802686][ T416] __kernfs_new_node+0x99/0x6e0 [ 1008.807524][ T416] ? vsnprintf+0x1cb4/0x1d60 [ 1008.812085][ T416] ? kernfs_new_node+0x170/0x170 [ 1008.816995][ T416] ? ptr_to_hashval+0x60/0x60 [ 1008.821645][ T416] ? stack_trace_snprint+0xe0/0xe0 [ 1008.826738][ T416] ? snprintf+0xd6/0x120 [ 1008.830958][ T416] kernfs_new_node+0x97/0x170 [ 1008.835614][ T416] __kernfs_create_file+0x4a/0x270 [ 1008.840701][ T416] cgroup_addrm_files+0xb01/0x1010 [ 1008.845851][ T416] ? kzalloc+0x20/0x20 [ 1008.849893][ T416] ? node_tag_clear+0x1e2/0x290 [ 1008.854713][ T416] ? delete_node+0x74b/0x7a0 [ 1008.859276][ T416] ? __local_bh_enable_ip+0xa8/0x170 [ 1008.864538][ T416] ? _local_bh_enable+0x30/0x30 [ 1008.869361][ T416] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1008.874360][ T416] css_populate_dir+0x137/0x370 [ 1008.879186][ T416] cgroup_apply_control_enable+0x6cc/0x1230 [ 1008.885052][ T416] cgroup_apply_control+0x93/0x730 [ 1008.890137][ T416] ? css_next_child+0x180/0x180 [ 1008.894958][ T416] ? io_schedule+0x120/0x120 [ 1008.899520][ T416] ? kernfs_fop_write_iter+0x15e/0x410 [ 1008.904950][ T416] ? __kasan_check_write+0x14/0x20 [ 1008.910032][ T416] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1008.915405][ T416] cgroup_subtree_control_write+0xd87/0x1310 [ 1008.921378][ T416] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1008.927343][ T416] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1008.933316][ T416] cgroup_file_write+0x28e/0x590 [ 1008.938230][ T416] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1008.943313][ T416] ? mutex_lock+0xa6/0x110 [ 1008.947706][ T416] ? mutex_trylock+0xb0/0xb0 [ 1008.952272][ T416] ? __kasan_check_write+0x14/0x20 [ 1008.957368][ T416] kernfs_fop_write_iter+0x2d0/0x410 [ 1008.962629][ T416] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1008.967714][ T416] vfs_write+0xc02/0xf20 [ 1008.971930][ T416] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1008.977447][ T416] ? kernel_write+0x3c0/0x3c0 [ 1008.982709][ T416] ? do_sys_openat2+0x397/0x470 [ 1008.987530][ T416] ? vmacache_update+0xb7/0x120 [ 1008.992369][ T416] ? __kasan_check_read+0x11/0x20 [ 1008.997377][ T416] ? __fdget_pos+0x27a/0x300 [ 1009.001937][ T416] ksys_write+0x186/0x2b0 [ 1009.006238][ T416] ? __ia32_sys_read+0x90/0x90 [ 1009.010979][ T416] ? debug_smp_processor_id+0x1c/0x20 [ 1009.016322][ T416] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1009.022374][ T416] __x64_sys_write+0x7b/0x90 [ 1009.026945][ T416] do_syscall_64+0x31/0x70 [ 1009.031354][ T416] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1009.041923][ T416] RIP: 0033:0x7f695884ccf9 [ 1009.046325][ T416] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1009.065911][ T416] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1009.074297][ T416] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1009.082242][ T416] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1009.090196][ T416] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1009.098146][ T416] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1009.106092][ T416] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000000 [ 1009.115905][ T416] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1009.149427][ T419] FAULT_INJECTION: forcing a failure. [ 1009.149427][ T419] name failslab, interval 1, probability 0, space 0, times 0 [ 1009.162078][ T419] CPU: 1 PID: 419 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1009.172298][ T419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1009.182350][ T419] Call Trace: [ 1009.185617][ T419] dump_stack_lvl+0x1e2/0x24b [ 1009.190278][ T419] ? show_regs_print_info+0x18/0x18 [ 1009.195448][ T419] ? __rcu_read_lock+0x50/0x50 [ 1009.200191][ T419] dump_stack+0x15/0x1d [ 1009.204318][ T419] should_fail+0x3c0/0x510 [ 1009.208707][ T419] ? __kernfs_new_node+0xdb/0x6e0 [ 1009.213713][ T419] __should_failslab+0x9f/0xe0 [ 1009.218459][ T419] should_failslab+0x9/0x20 [ 1009.222934][ T419] kmem_cache_alloc+0x43/0x380 [ 1009.227669][ T419] ? memcpy+0x56/0x70 [ 1009.231623][ T419] __kernfs_new_node+0xdb/0x6e0 [ 1009.236445][ T419] ? vsnprintf+0x1cb4/0x1d60 [ 1009.241004][ T419] ? kernfs_new_node+0x170/0x170 [ 1009.245912][ T419] ? ptr_to_hashval+0x60/0x60 [ 1009.250558][ T419] ? stack_trace_snprint+0xe0/0xe0 [ 1009.255637][ T419] ? snprintf+0xd6/0x120 [ 1009.259851][ T419] kernfs_new_node+0x97/0x170 [ 1009.264499][ T419] __kernfs_create_file+0x4a/0x270 [ 1009.269580][ T419] cgroup_addrm_files+0xb01/0x1010 [ 1009.274685][ T419] ? kzalloc+0x20/0x20 [ 1009.278734][ T419] ? node_tag_clear+0x1e2/0x290 [ 1009.283553][ T419] ? delete_node+0x74b/0x7a0 [ 1009.288118][ T419] ? __local_bh_enable_ip+0xa8/0x170 [ 1009.293374][ T419] ? _local_bh_enable+0x30/0x30 [ 1009.298197][ T419] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1009.303212][ T419] css_populate_dir+0x137/0x370 [ 1009.308035][ T419] cgroup_apply_control_enable+0x6cc/0x1230 [ 1009.313907][ T419] cgroup_apply_control+0x93/0x730 [ 1009.319000][ T419] ? css_next_child+0x180/0x180 [ 1009.323821][ T419] ? io_schedule+0x120/0x120 [ 1009.328380][ T419] ? kernfs_fop_write_iter+0x15e/0x410 [ 1009.333808][ T419] ? __kasan_check_write+0x14/0x20 [ 1009.338889][ T419] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1009.344148][ T419] cgroup_subtree_control_write+0xd87/0x1310 [ 1009.350098][ T419] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1009.356047][ T419] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1009.361999][ T419] cgroup_file_write+0x28e/0x590 [ 1009.366924][ T419] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1009.372007][ T419] ? mutex_lock+0xa6/0x110 [ 1009.376394][ T419] ? mutex_trylock+0xb0/0xb0 [ 1009.380954][ T419] ? __kasan_check_write+0x14/0x20 [ 1009.386034][ T419] kernfs_fop_write_iter+0x2d0/0x410 [ 1009.391290][ T419] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1009.396390][ T419] vfs_write+0xc02/0xf20 [ 1009.400607][ T419] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1009.406139][ T419] ? kernel_write+0x3c0/0x3c0 [ 1009.410795][ T419] ? do_sys_openat2+0x397/0x470 [ 1009.415622][ T419] ? vmacache_update+0xb7/0x120 [ 1009.420444][ T419] ? __kasan_check_read+0x11/0x20 [ 1009.425439][ T419] ? __fdget_pos+0x27a/0x300 [ 1009.430016][ T419] ksys_write+0x186/0x2b0 [ 1009.434318][ T419] ? __ia32_sys_read+0x90/0x90 [ 1009.439051][ T419] ? debug_smp_processor_id+0x1c/0x20 [ 1009.444392][ T419] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1009.450443][ T419] __x64_sys_write+0x7b/0x90 [ 1009.455020][ T419] do_syscall_64+0x31/0x70 [ 1009.459408][ T419] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1009.465270][ T419] RIP: 0033:0x7f695884ccf9 [ 1009.469662][ T419] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1009.489254][ T419] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1009.497639][ T419] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1009.505585][ T419] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1009.513536][ T419] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1009.521482][ T419] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1009.529433][ T419] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000001 [ 1009.538228][ T419] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1009.559392][ T410] FAULT_INJECTION: forcing a failure. [ 1009.559392][ T410] name failslab, interval 1, probability 0, space 0, times 0 [ 1009.572107][ T410] CPU: 0 PID: 410 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1009.582315][ T410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1009.592348][ T410] Call Trace: [ 1009.595640][ T410] dump_stack_lvl+0x1e2/0x24b [ 1009.600295][ T410] ? devkmsg_release+0x127/0x127 [ 1009.605206][ T410] ? show_regs_print_info+0x18/0x18 [ 1009.610387][ T410] ? node_tag_clear+0x1e2/0x290 [ 1009.615217][ T410] dump_stack+0x15/0x1d [ 1009.619361][ T410] should_fail+0x3c0/0x510 [ 1009.623757][ T410] ? pids_css_alloc+0x4e/0x120 [ 1009.628497][ T410] __should_failslab+0x9f/0xe0 [ 1009.633251][ T410] should_failslab+0x9/0x20 [ 1009.637732][ T410] kmem_cache_alloc_trace+0x42/0x3a0 [ 1009.642997][ T410] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1009.648019][ T410] pids_css_alloc+0x4e/0x120 [ 1009.652586][ T410] cgroup_apply_control_enable+0x320/0x1230 [ 1009.658456][ T410] cgroup_apply_control+0x93/0x730 [ 1009.663564][ T410] ? css_next_child+0x180/0x180 [ 1009.668400][ T410] ? io_schedule+0x120/0x120 [ 1009.672964][ T410] ? kernfs_fop_write_iter+0x15e/0x410 [ 1009.678402][ T410] ? __kasan_check_write+0x14/0x20 [ 1009.683489][ T410] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1009.688753][ T410] cgroup_subtree_control_write+0xd87/0x1310 [ 1009.694728][ T410] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1009.700699][ T410] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1009.706659][ T410] cgroup_file_write+0x28e/0x590 [ 1009.711570][ T410] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1009.716659][ T410] ? mutex_lock+0xa6/0x110 [ 1009.721050][ T410] ? mutex_trylock+0xb0/0xb0 [ 1009.725615][ T410] ? __kasan_check_write+0x14/0x20 [ 1009.730729][ T410] kernfs_fop_write_iter+0x2d0/0x410 [ 1009.735994][ T410] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1009.741082][ T410] vfs_write+0xc02/0xf20 [ 1009.745297][ T410] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1009.750903][ T410] ? kernel_write+0x3c0/0x3c0 [ 1009.755557][ T410] ? do_sys_openat2+0x397/0x470 [ 1009.760384][ T410] ? vmacache_update+0xb7/0x120 [ 1009.765207][ T410] ? __kasan_check_read+0x11/0x20 [ 1009.770216][ T410] ? __fdget_pos+0x27a/0x300 [ 1009.774784][ T410] ksys_write+0x186/0x2b0 [ 1009.779090][ T410] ? __ia32_sys_read+0x90/0x90 [ 1009.783829][ T410] ? debug_smp_processor_id+0x1c/0x20 [ 1009.789188][ T410] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1009.795237][ T410] __x64_sys_write+0x7b/0x90 [ 1009.799887][ T410] do_syscall_64+0x31/0x70 [ 1009.804284][ T410] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1009.810150][ T410] RIP: 0033:0x7f695884ccf9 [ 1009.814540][ T410] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1009.834125][ T410] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1009.842516][ T410] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1009.850464][ T410] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1009.858497][ T410] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1009.866445][ T410] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1009.874394][ T410] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000000 [ 1009.909340][ T415] FAULT_INJECTION: forcing a failure. [ 1009.909340][ T415] name failslab, interval 1, probability 0, space 0, times 0 [ 1009.922004][ T415] CPU: 1 PID: 415 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1009.932222][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1009.942260][ T415] Call Trace: [ 1009.945529][ T415] dump_stack_lvl+0x1e2/0x24b [ 1009.950182][ T415] ? show_regs_print_info+0x18/0x18 [ 1009.955355][ T415] ? pcpu_alloc+0x12f9/0x1370 [ 1009.960008][ T415] dump_stack+0x15/0x1d [ 1009.964155][ T415] should_fail+0x3c0/0x510 [ 1009.968551][ T415] ? percpu_ref_init+0xd5/0x310 [ 1009.973388][ T415] __should_failslab+0x9f/0xe0 [ 1009.978145][ T415] should_failslab+0x9/0x20 [ 1009.982646][ T415] kmem_cache_alloc_trace+0x42/0x3a0 [ 1009.987934][ T415] percpu_ref_init+0xd5/0x310 [ 1009.992585][ T415] ? cgroup_setup_root+0xc70/0xc70 [ 1009.997687][ T415] cgroup_apply_control_enable+0x36a/0x1230 [ 1010.003572][ T415] cgroup_apply_control+0x93/0x730 [ 1010.008660][ T415] ? css_next_child+0x180/0x180 [ 1010.013486][ T415] ? io_schedule+0x120/0x120 [ 1010.018049][ T415] ? kernfs_fop_write_iter+0x15e/0x410 [ 1010.023477][ T415] ? __kasan_check_write+0x14/0x20 [ 1010.028559][ T415] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1010.033815][ T415] cgroup_subtree_control_write+0xd87/0x1310 [ 1010.039822][ T415] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1010.045775][ T415] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1010.051728][ T415] cgroup_file_write+0x28e/0x590 [ 1010.056639][ T415] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1010.061721][ T415] ? mutex_lock+0xa6/0x110 [ 1010.066108][ T415] ? mutex_trylock+0xb0/0xb0 [ 1010.070671][ T415] ? __kasan_check_write+0x14/0x20 [ 1010.075755][ T415] kernfs_fop_write_iter+0x2d0/0x410 [ 1010.081012][ T415] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1010.086109][ T415] vfs_write+0xc02/0xf20 [ 1010.090326][ T415] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1010.095845][ T415] ? kernel_write+0x3c0/0x3c0 [ 1010.100493][ T415] ? do_sys_openat2+0x397/0x470 [ 1010.105315][ T415] ? vmacache_update+0xb7/0x120 [ 1010.110140][ T415] ? __kasan_check_read+0x11/0x20 [ 1010.115134][ T415] ? __fdget_pos+0x27a/0x300 [ 1010.119697][ T415] ksys_write+0x186/0x2b0 [ 1010.123999][ T415] ? __ia32_sys_read+0x90/0x90 [ 1010.128731][ T415] ? debug_smp_processor_id+0x1c/0x20 [ 1010.134074][ T415] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1010.140119][ T415] __x64_sys_write+0x7b/0x90 [ 1010.144697][ T415] do_syscall_64+0x31/0x70 [ 1010.149086][ T415] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1010.154948][ T415] RIP: 0033:0x7f695884ccf9 [ 1010.159335][ T415] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1010.178911][ T415] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1010.187297][ T415] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1010.195242][ T415] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1010.203203][ T415] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1010.211284][ T415] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1010.219243][ T415] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000000 [ 1010.249198][ T414] FAULT_INJECTION: forcing a failure. [ 1010.249198][ T414] name failslab, interval 1, probability 0, space 0, times 0 [ 1010.261973][ T414] CPU: 1 PID: 414 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1010.272184][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1010.282240][ T414] Call Trace: [ 1010.285506][ T414] dump_stack_lvl+0x1e2/0x24b [ 1010.290156][ T414] ? show_regs_print_info+0x18/0x18 [ 1010.295327][ T414] ? pcpu_alloc+0x12f9/0x1370 [ 1010.299992][ T414] dump_stack+0x15/0x1d [ 1010.304124][ T414] should_fail+0x3c0/0x510 [ 1010.308513][ T414] ? percpu_ref_init+0xd5/0x310 [ 1010.313333][ T414] __should_failslab+0x9f/0xe0 [ 1010.318066][ T414] should_failslab+0x9/0x20 [ 1010.322542][ T414] kmem_cache_alloc_trace+0x42/0x3a0 [ 1010.327802][ T414] percpu_ref_init+0xd5/0x310 [ 1010.332468][ T414] ? cgroup_setup_root+0xc70/0xc70 [ 1010.337556][ T414] cgroup_apply_control_enable+0x36a/0x1230 [ 1010.343426][ T414] cgroup_apply_control+0x93/0x730 [ 1010.348507][ T414] ? css_next_child+0x180/0x180 [ 1010.353327][ T414] ? io_schedule+0x120/0x120 [ 1010.357888][ T414] ? kernfs_fop_write_iter+0x15e/0x410 [ 1010.363318][ T414] ? __kasan_check_write+0x14/0x20 [ 1010.368402][ T414] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1010.373662][ T414] cgroup_subtree_control_write+0xd87/0x1310 [ 1010.379613][ T414] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1010.385564][ T414] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1010.391511][ T414] cgroup_file_write+0x28e/0x590 [ 1010.396419][ T414] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1010.401502][ T414] ? mutex_lock+0xa6/0x110 [ 1010.405888][ T414] ? mutex_trylock+0xb0/0xb0 [ 1010.410449][ T414] ? __kasan_check_write+0x14/0x20 [ 1010.415531][ T414] kernfs_fop_write_iter+0x2d0/0x410 [ 1010.420783][ T414] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1010.425866][ T414] vfs_write+0xc02/0xf20 [ 1010.430077][ T414] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1010.435594][ T414] ? kernel_write+0x3c0/0x3c0 [ 1010.440243][ T414] ? do_sys_openat2+0x397/0x470 [ 1010.445063][ T414] ? vmacache_update+0xb7/0x120 [ 1010.449880][ T414] ? __kasan_check_read+0x11/0x20 [ 1010.454893][ T414] ? __fdget_pos+0x27a/0x300 [ 1010.459463][ T414] ksys_write+0x186/0x2b0 [ 1010.463777][ T414] ? __ia32_sys_read+0x90/0x90 [ 1010.468522][ T414] ? debug_smp_processor_id+0x1c/0x20 [ 1010.473862][ T414] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1010.479898][ T414] __x64_sys_write+0x7b/0x90 [ 1010.484459][ T414] do_syscall_64+0x31/0x70 [ 1010.488898][ T414] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1010.494771][ T414] RIP: 0033:0x7f695884ccf9 [ 1010.499159][ T414] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1010.518735][ T414] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1010.527121][ T414] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1010.535068][ T414] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1010.543014][ T414] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1010.550958][ T414] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1010.558901][ T414] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000003 [ 1010.619352][ T422] FAULT_INJECTION: forcing a failure. [ 1010.619352][ T422] name failslab, interval 1, probability 0, space 0, times 0 [ 1010.632139][ T422] CPU: 1 PID: 422 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1010.642375][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1010.652407][ T422] Call Trace: [ 1010.655679][ T422] dump_stack_lvl+0x1e2/0x24b [ 1010.660353][ T422] ? devkmsg_release+0x127/0x127 [ 1010.665263][ T422] ? show_regs_print_info+0x18/0x18 [ 1010.670437][ T422] dump_stack+0x15/0x1d [ 1010.674570][ T422] should_fail+0x3c0/0x510 [ 1010.678962][ T422] ? __kernfs_new_node+0x99/0x6e0 [ 1010.683966][ T422] __should_failslab+0x9f/0xe0 [ 1010.688704][ T422] should_failslab+0x9/0x20 [ 1010.693183][ T422] __kmalloc_track_caller+0x67/0x3b0 [ 1010.698451][ T422] ? widen_string+0x40/0x380 [ 1010.703017][ T422] kstrdup_const+0x55/0x90 [ 1010.707409][ T422] __kernfs_new_node+0x99/0x6e0 [ 1010.712233][ T422] ? vsnprintf+0x1cb4/0x1d60 [ 1010.716800][ T422] ? kernfs_new_node+0x170/0x170 [ 1010.721705][ T422] ? ptr_to_hashval+0x60/0x60 [ 1010.726353][ T422] ? stack_trace_snprint+0xe0/0xe0 [ 1010.731436][ T422] ? find_next_bit+0x113/0x120 [ 1010.736173][ T422] ? snprintf+0xd6/0x120 [ 1010.740391][ T422] kernfs_new_node+0x97/0x170 [ 1010.745037][ T422] __kernfs_create_file+0x4a/0x270 [ 1010.750121][ T422] cgroup_addrm_files+0xb01/0x1010 [ 1010.755205][ T422] ? kzalloc+0x20/0x20 [ 1010.759247][ T422] ? node_tag_clear+0x1e2/0x290 [ 1010.764070][ T422] ? delete_node+0x74b/0x7a0 [ 1010.768631][ T422] ? __local_bh_enable_ip+0xa8/0x170 [ 1010.773889][ T422] ? _local_bh_enable+0x30/0x30 [ 1010.778710][ T422] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1010.783801][ T422] css_populate_dir+0x137/0x370 [ 1010.788642][ T422] cgroup_apply_control_enable+0x6cc/0x1230 [ 1010.794523][ T422] cgroup_apply_control+0x93/0x730 [ 1010.799622][ T422] ? css_next_child+0x180/0x180 [ 1010.804455][ T422] ? io_schedule+0x120/0x120 [ 1010.809043][ T422] ? kernfs_fop_write_iter+0x15e/0x410 [ 1010.814532][ T422] ? __kasan_check_write+0x14/0x20 [ 1010.819626][ T422] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1010.824897][ T422] cgroup_subtree_control_write+0xd87/0x1310 [ 1010.830852][ T422] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1010.836805][ T422] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1010.842757][ T422] cgroup_file_write+0x28e/0x590 [ 1010.847670][ T422] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1010.852754][ T422] ? mutex_lock+0xa6/0x110 [ 1010.857140][ T422] ? mutex_trylock+0xb0/0xb0 [ 1010.861704][ T422] ? __kasan_check_write+0x14/0x20 [ 1010.866803][ T422] kernfs_fop_write_iter+0x2d0/0x410 [ 1010.872061][ T422] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1010.877161][ T422] vfs_write+0xc02/0xf20 [ 1010.881389][ T422] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1010.886909][ T422] ? kernel_write+0x3c0/0x3c0 [ 1010.891563][ T422] ? do_sys_openat2+0x397/0x470 [ 1010.896390][ T422] ? vmacache_update+0xb7/0x120 [ 1010.901229][ T422] ? __kasan_check_read+0x11/0x20 [ 1010.906236][ T422] ? __fdget_pos+0x27a/0x300 [ 1010.910815][ T422] ksys_write+0x186/0x2b0 [ 1010.915117][ T422] ? __ia32_sys_read+0x90/0x90 [ 1010.919858][ T422] ? debug_smp_processor_id+0x1c/0x20 [ 1010.925204][ T422] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1010.931258][ T422] __x64_sys_write+0x7b/0x90 [ 1010.935824][ T422] do_syscall_64+0x31/0x70 [ 1010.940212][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1010.946075][ T422] RIP: 0033:0x7f695884ccf9 [ 1010.950462][ T422] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1010.970040][ T422] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1010.978425][ T422] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1010.986379][ T422] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1010.994417][ T422] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1011.002368][ T422] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1011.010313][ T422] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 1011.018838][ T422] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1011.027523][ T373] ------------[ cut here ]------------ [ 1011.033009][ T373] WARNING: CPU: 1 PID: 373 at fs/namespace.c:1168 mntput_no_expire+0xb56/0xc10 [ 1011.041983][ T373] Modules linked in: [ 1011.045860][ T373] CPU: 1 PID: 373 Comm: syz-executor157 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1011.056108][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1011.066181][ T373] RIP: 0010:mntput_no_expire+0xb56/0xc10 [ 1011.071839][ T373] Code: b0 f3 b5 ff 4c 89 e7 e8 d8 13 01 00 e9 cb f5 ff ff e8 9e f3 b5 ff e9 9a fa ff ff e8 94 f3 b5 ff e9 ae f9 ff ff e8 8a f3 b5 ff <0f> 0b e9 e2 f7 ff ff e8 7e f3 b5 ff e9 98 f9 ff ff 48 c7 c1 98 8e [ 1011.091455][ T373] RSP: 0018:ffffc90000b87b80 EFLAGS: 00010293 [ 1011.097512][ T373] RAX: ffffffff81b707d6 RBX: 00000000ffffffff RCX: ffff88811d1113c0 [ 1011.105495][ T373] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 00000000ffffffff [ 1011.113472][ T373] RBP: ffffc90000b87c70 R08: ffffffff81b6ffb2 R09: 0000000000000003 [ 1011.121452][ T373] R10: fffff52000170f61 R11: 0000000000000004 R12: ffff88810e60c8c0 [ 1011.129443][ T373] R13: 1ffff92000170f7c R14: ffffc90000b87c00 R15: dffffc0000000000 [ 1011.137419][ T373] FS: 0000555555ad83c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 1011.146430][ T373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1011.153129][ T373] CR2: 0000555555ae26f8 CR3: 000000011d102000 CR4: 00000000003506a0 [ 1011.161131][ T373] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1011.169103][ T373] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1011.177045][ T373] Call Trace: [ 1011.180335][ T373] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1011.185870][ T373] ? up_write+0xd0/0xd0 [ 1011.190026][ T373] ? io_schedule+0x120/0x120 [ 1011.194611][ T373] ? vfs_submount+0xb0/0xb0 [ 1011.199117][ T373] namespace_unlock+0x448/0x4f0 [ 1011.203959][ T373] ? umount_tree+0xf50/0xf50 [ 1011.208520][ T373] ? __detach_mounts+0x650/0x650 [ 1011.213474][ T373] ? selinux_umount+0xf0/0x130 [ 1011.218219][ T373] ? security_sb_umount+0x9d/0xb0 [ 1011.223478][ T373] path_umount+0xebd/0xf70 [ 1011.227892][ T373] ? namespace_unlock+0x4f0/0x4f0 [ 1011.233076][ T373] ? user_path_at_empty+0x40/0x50 [ 1011.238077][ T373] __x64_sys_umount+0x122/0x170 [ 1011.242928][ T373] ? path_umount+0xf70/0xf70 [ 1011.247503][ T373] ? debug_smp_processor_id+0x1c/0x20 [ 1011.252889][ T373] ? exit_to_user_mode_prepare+0x3b/0xe0 [ 1011.258516][ T373] do_syscall_64+0x31/0x70 [ 1011.262942][ T373] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1011.268817][ T373] RIP: 0033:0x7f695884e0a7 [ 1011.273237][ T373] Code: 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 1011.292852][ T373] RSP: 002b:00007ffd60388de8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 1011.301464][ T373] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f695884e0a7 [ 1011.309630][ T373] RDX: 00007ffd60388ea9 RSI: 000000000000000a RDI: 00007ffd60388ea0 [ 1011.317582][ T373] RBP: 00007ffd60388ea0 R08: 00000000ffffffff R09: 00007ffd60388c80 [ 1011.325557][ T373] R10: 0000555555ada763 R11: 0000000000000206 R12: 00007ffd60389f10 [ 1011.333535][ T373] R13: 0000555555ada6c0 R14: 00007ffd60388e10 R15: 0000000000000002 [ 1011.341515][ T373] ---[ end trace 2c8d7c89d484fe85 ]--- [ 1011.347039][ T373] ------------[ cut here ]------------ [ 1011.352536][ T373] WARNING: CPU: 0 PID: 373 at fs/namespace.c:1168 mntput_no_expire+0xb56/0xc10 [ 1011.359300][ T418] FAULT_INJECTION: forcing a failure. [ 1011.359300][ T418] name failslab, interval 1, probability 0, space 0, times 0 [ 1011.361459][ T373] Modules linked in: [ 1011.374344][ T418] CPU: 1 PID: 418 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1011.377908][ T373] CPU: 0 PID: 373 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1011.389485][ T418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1011.389489][ T418] Call Trace: [ 1011.389505][ T418] dump_stack_lvl+0x1e2/0x24b [ 1011.389513][ T418] ? devkmsg_release+0x127/0x127 [ 1011.389522][ T418] ? show_regs_print_info+0x18/0x18 [ 1011.389531][ T418] dump_stack+0x15/0x1d [ 1011.389540][ T418] should_fail+0x3c0/0x510 [ 1011.389549][ T418] ? __kernfs_new_node+0x99/0x6e0 [ 1011.389557][ T418] __should_failslab+0x9f/0xe0 [ 1011.389564][ T418] should_failslab+0x9/0x20 [ 1011.389572][ T418] __kmalloc_track_caller+0x67/0x3b0 [ 1011.389579][ T418] ? widen_string+0x40/0x380 [ 1011.389588][ T418] kstrdup_const+0x55/0x90 [ 1011.389597][ T418] __kernfs_new_node+0x99/0x6e0 [ 1011.389604][ T418] ? vsnprintf+0x1cb4/0x1d60 [ 1011.389613][ T418] ? kernfs_new_node+0x170/0x170 [ 1011.389625][ T418] ? ptr_to_hashval+0x60/0x60 [ 1011.401387][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1011.411242][ T418] ? stack_trace_snprint+0xe0/0xe0 [ 1011.411250][ T418] ? find_next_bit+0x113/0x120 [ 1011.411263][ T418] ? snprintf+0xd6/0x120 [ 1011.414523][ T373] RIP: 0010:mntput_no_expire+0xb56/0xc10 [ 1011.419159][ T418] kernfs_new_node+0x97/0x170 [ 1011.419167][ T418] __kernfs_create_file+0x4a/0x270 [ 1011.419182][ T418] cgroup_addrm_files+0xb01/0x1010 [ 1011.424084][ T373] Code: b0 f3 b5 ff 4c 89 e7 e8 d8 13 01 00 e9 cb f5 ff ff e8 9e f3 b5 ff e9 9a fa ff ff e8 94 f3 b5 ff e9 ae f9 ff ff e8 8a f3 b5 ff <0f> 0b e9 e2 f7 ff ff e8 7e f3 b5 ff e9 98 f9 ff ff 48 c7 c1 98 8e [ 1011.429245][ T418] ? kzalloc+0x20/0x20 [ 1011.429253][ T418] ? node_tag_clear+0x1e2/0x290 [ 1011.429259][ T418] ? delete_node+0x74b/0x7a0 [ 1011.429269][ T418] ? __local_bh_enable_ip+0xa8/0x170 [ 1011.429282][ T418] ? _local_bh_enable+0x30/0x30 [ 1011.433404][ T373] RSP: 0018:ffffc90000b87c80 EFLAGS: 00010293 [ 1011.437789][ T418] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1011.442782][ T373] [ 1011.447506][ T418] css_populate_dir+0x137/0x370 [ 1011.451983][ T373] RAX: ffffffff81b707d6 RBX: 00000000fffffffe RCX: ffff88811d1113c0 [ 1011.457231][ T418] cgroup_apply_control_enable+0x6cc/0x1230 [ 1011.462008][ T373] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000ffffffff [ 1011.466178][ T418] cgroup_apply_control+0x93/0x730 [ 1011.471135][ T373] RBP: ffffc90000b87d70 R08: ffffffff81b6ffb2 R09: 0000000000000003 [ 1011.475556][ T418] ? css_next_child+0x180/0x180 [ 1011.480471][ T373] R10: fffff52000170f81 R11: 0000000000000004 R12: ffff88810e60c8c0 [ 1011.485109][ T418] ? io_schedule+0x120/0x120 [ 1011.495156][ T373] R13: 1ffff92000170f9c R14: ffffc90000b87d00 R15: dffffc0000000000 [ 1011.500205][ T418] ? kernfs_fop_write_iter+0x15e/0x410 [ 1011.500219][ T418] ? __kasan_check_write+0x14/0x20 [ 1011.504952][ T373] FS: 0000555555ad83c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 1011.509158][ T418] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1011.509167][ T418] cgroup_subtree_control_write+0xd87/0x1310 [ 1011.509181][ T418] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1011.514777][ T373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1011.519417][ T418] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1011.519425][ T418] cgroup_file_write+0x28e/0x590 [ 1011.519438][ T418] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1011.524512][ T373] CR2: 00007ffd60389eb8 CR3: 000000011d102000 CR4: 00000000003506b0 [ 1011.529587][ T418] ? mutex_lock+0xa6/0x110 [ 1011.529595][ T418] ? mutex_trylock+0xb0/0xb0 [ 1011.529609][ T418] ? __kasan_check_write+0x14/0x20 [ 1011.549340][ T373] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1011.553224][ T418] kernfs_fop_write_iter+0x2d0/0x410 [ 1011.558031][ T373] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1011.558039][ T373] Call Trace: [ 1011.562594][ T418] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1011.562604][ T418] vfs_write+0xc02/0xf20 [ 1011.562612][ T418] ? slab_free_freelist_hook+0xcc/0x1a0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 1011.562620][ T418] ? kernel_write+0x3c0/0x3c0 [ 1011.562628][ T418] ? do_sys_openat2+0x397/0x470 [ 1011.562636][ T418] ? __kasan_check_read+0x11/0x20 [ 1011.562643][ T418] ? __fdget_pos+0x27a/0x300 [ 1011.562650][ T418] ksys_write+0x186/0x2b0 [ 1011.562657][ T418] ? __ia32_sys_read+0x90/0x90 [ 1011.562665][ T418] ? debug_smp_processor_id+0x1c/0x20 [ 1011.562673][ T418] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1011.562680][ T418] __x64_sys_write+0x7b/0x90 [ 1011.562688][ T418] do_syscall_64+0x31/0x70 [ 1011.562697][ T418] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1011.562705][ T418] RIP: 0033:0x7f695884ccf9 [ 1011.562715][ T418] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1011.562721][ T418] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1011.562733][ T418] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1011.562739][ T418] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1011.562751][ T418] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1011.568006][ T373] ? __rcu_read_lock+0x50/0x50 [ 1011.572812][ T418] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1011.572818][ T418] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000008 [ 1011.778688][ T418] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1011.781716][ T373] ? umount_tree+0xf50/0xf50 [ 1011.915472][ T373] ? vfs_submount+0xb0/0xb0 [ 1011.919969][ T373] ? dput+0x517/0x600 [ 1011.923930][ T373] ? security_sb_umount+0x9d/0xb0 [ 1011.928944][ T373] path_umount+0x201/0xf70 [ 1011.933339][ T373] ? namespace_unlock+0x4f0/0x4f0 [ 1011.938338][ T373] ? user_path_at_empty+0x40/0x50 [ 1011.943538][ T373] __x64_sys_umount+0x122/0x170 [ 1011.948371][ T373] ? path_umount+0xf70/0xf70 [ 1011.953110][ T373] ? debug_smp_processor_id+0x1c/0x20 [ 1011.958462][ T373] ? exit_to_user_mode_prepare+0x3b/0xe0 [ 1011.964089][ T373] do_syscall_64+0x31/0x70 [ 1011.968481][ T373] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1011.974366][ T373] RIP: 0033:0x7f695884e0a7 [ 1011.978762][ T373] Code: 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 1011.998358][ T373] RSP: 002b:00007ffd60388de8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 1012.006773][ T373] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f695884e0a7 [ 1012.014738][ T373] RDX: 00007ffd60388ea9 RSI: 000000000000000a RDI: 00007ffd60388ea0 executing program executing program [ 1012.022830][ T373] RBP: 00007ffd60388ea0 R08: 00000000ffffffff R09: 00007ffd60388c80 [ 1012.030887][ T373] R10: 0000555555ada763 R11: 0000000000000206 R12: 00007ffd60389f10 [ 1012.038861][ T373] R13: 0000555555ada6c0 R14: 00007ffd60388e10 R15: 0000000000000002 [ 1012.046820][ T373] ---[ end trace 2c8d7c89d484fe86 ]--- [ 1012.058161][ T23] kauditd_printk_skb: 7 callbacks suppressed [ 1012.058170][ T23] audit: type=1400 audit(1648677170.529:90): avc: denied { remove_name } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 1012.086552][ T23] audit: type=1400 audit(1648677170.529:91): avc: denied { rename } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 1012.109741][ T421] FAULT_INJECTION: forcing a failure. [ 1012.109741][ T421] name failslab, interval 1, probability 0, space 0, times 0 [ 1012.122345][ T421] CPU: 1 PID: 421 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1012.133946][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1012.143973][ T421] Call Trace: [ 1012.147242][ T421] dump_stack_lvl+0x1e2/0x24b [ 1012.151891][ T421] ? devkmsg_release+0x127/0x127 [ 1012.156798][ T421] ? __kasan_check_write+0x14/0x20 [ 1012.161882][ T421] ? show_regs_print_info+0x18/0x18 [ 1012.167050][ T421] ? kernfs_xattr_get+0x80/0x90 [ 1012.171871][ T421] ? selinux_kernfs_init_security+0x1b2/0x7e0 [ 1012.177919][ T421] dump_stack+0x15/0x1d [ 1012.182055][ T421] should_fail+0x3c0/0x510 [ 1012.186444][ T421] ? __kernfs_new_node+0x99/0x6e0 [ 1012.191441][ T421] __should_failslab+0x9f/0xe0 [ 1012.196175][ T421] should_failslab+0x9/0x20 [ 1012.200648][ T421] __kmalloc_track_caller+0x67/0x3b0 [ 1012.205902][ T421] ? widen_string+0x40/0x380 [ 1012.210461][ T421] kstrdup_const+0x55/0x90 [ 1012.214845][ T421] __kernfs_new_node+0x99/0x6e0 [ 1012.219666][ T421] ? vsnprintf+0x1cb4/0x1d60 [ 1012.224229][ T421] ? kernfs_new_node+0x170/0x170 [ 1012.229134][ T421] ? ptr_to_hashval+0x60/0x60 [ 1012.233779][ T421] ? snprintf+0xd6/0x120 [ 1012.237992][ T421] ? __kasan_check_write+0x14/0x20 [ 1012.243075][ T421] kernfs_new_node+0x97/0x170 [ 1012.247721][ T421] __kernfs_create_file+0x4a/0x270 [ 1012.252812][ T421] cgroup_addrm_files+0xb01/0x1010 [ 1012.257903][ T421] ? kzalloc+0x20/0x20 [ 1012.261944][ T421] ? node_tag_clear+0x1e2/0x290 [ 1012.266771][ T421] ? __local_bh_enable_ip+0xa8/0x170 [ 1012.272026][ T421] ? _local_bh_enable+0x30/0x30 [ 1012.276849][ T421] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1012.281843][ T421] css_populate_dir+0x137/0x370 [ 1012.286720][ T421] cgroup_apply_control_enable+0x6cc/0x1230 [ 1012.292584][ T421] cgroup_apply_control+0x93/0x730 [ 1012.297667][ T421] ? css_next_child+0x180/0x180 [ 1012.302491][ T421] ? io_schedule+0x120/0x120 [ 1012.307052][ T421] ? kernfs_fop_write_iter+0x15e/0x410 [ 1012.312482][ T421] ? __kasan_check_write+0x14/0x20 [ 1012.317565][ T421] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1012.322821][ T421] cgroup_subtree_control_write+0xd87/0x1310 [ 1012.328770][ T421] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1012.334717][ T421] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1012.340756][ T421] cgroup_file_write+0x28e/0x590 [ 1012.345679][ T421] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1012.350766][ T421] ? mutex_lock+0xa6/0x110 [ 1012.355151][ T421] ? mutex_trylock+0xb0/0xb0 [ 1012.359711][ T421] ? __kasan_check_write+0x14/0x20 [ 1012.364805][ T421] kernfs_fop_write_iter+0x2d0/0x410 [ 1012.370063][ T421] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1012.375146][ T421] vfs_write+0xc02/0xf20 [ 1012.379375][ T421] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1012.384903][ T421] ? kernel_write+0x3c0/0x3c0 [ 1012.389553][ T421] ? do_sys_openat2+0x397/0x470 [ 1012.394376][ T421] ? vmacache_update+0xb7/0x120 [ 1012.399196][ T421] ? __kasan_check_read+0x11/0x20 [ 1012.404192][ T421] ? __fdget_pos+0x27a/0x300 [ 1012.408757][ T421] ksys_write+0x186/0x2b0 [ 1012.413062][ T421] ? __ia32_sys_read+0x90/0x90 [ 1012.417849][ T421] ? debug_smp_processor_id+0x1c/0x20 [ 1012.423193][ T421] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1012.429236][ T421] __x64_sys_write+0x7b/0x90 [ 1012.433805][ T421] do_syscall_64+0x31/0x70 [ 1012.438193][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1012.444061][ T421] RIP: 0033:0x7f695884ccf9 [ 1012.448448][ T421] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1012.468025][ T421] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1012.476428][ T421] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1012.484377][ T421] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1012.492322][ T421] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1012.500277][ T421] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1012.508244][ T421] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000001 [ 1012.516625][ T421] cgroup: cgroup_addrm_files: failed to add events, err=-12 [ 1012.539442][ T426] FAULT_INJECTION: forcing a failure. [ 1012.539442][ T426] name failslab, interval 1, probability 0, space 0, times 0 [ 1012.552084][ T426] CPU: 1 PID: 426 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1012.563686][ T426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1012.573715][ T426] Call Trace: [ 1012.576982][ T426] dump_stack_lvl+0x1e2/0x24b [ 1012.581633][ T426] ? devkmsg_release+0x127/0x127 [ 1012.586542][ T426] ? show_regs_print_info+0x18/0x18 [ 1012.591715][ T426] dump_stack+0x15/0x1d [ 1012.595841][ T426] should_fail+0x3c0/0x510 [ 1012.600231][ T426] ? __kernfs_new_node+0x99/0x6e0 [ 1012.605244][ T426] __should_failslab+0x9f/0xe0 [ 1012.610000][ T426] should_failslab+0x9/0x20 [ 1012.614491][ T426] __kmalloc_track_caller+0x67/0x3b0 [ 1012.619790][ T426] ? widen_string+0x40/0x380 [ 1012.624359][ T426] kstrdup_const+0x55/0x90 [ 1012.628753][ T426] __kernfs_new_node+0x99/0x6e0 [ 1012.633580][ T426] ? vsnprintf+0x1cb4/0x1d60 [ 1012.638144][ T426] ? kernfs_new_node+0x170/0x170 [ 1012.643092][ T426] ? ptr_to_hashval+0x60/0x60 [ 1012.647743][ T426] ? stack_trace_snprint+0xe0/0xe0 [ 1012.652828][ T426] ? find_next_bit+0x113/0x120 [ 1012.657564][ T426] ? snprintf+0xd6/0x120 [ 1012.661783][ T426] kernfs_new_node+0x97/0x170 [ 1012.666564][ T426] __kernfs_create_file+0x4a/0x270 [ 1012.671747][ T426] cgroup_addrm_files+0xb01/0x1010 [ 1012.676858][ T426] ? kzalloc+0x20/0x20 [ 1012.680903][ T426] ? node_tag_clear+0x1e2/0x290 [ 1012.685727][ T426] ? delete_node+0x74b/0x7a0 [ 1012.690300][ T426] ? __local_bh_enable_ip+0xa8/0x170 [ 1012.695564][ T426] ? _local_bh_enable+0x30/0x30 [ 1012.700386][ T426] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1012.705390][ T426] css_populate_dir+0x137/0x370 [ 1012.710214][ T426] cgroup_apply_control_enable+0x6cc/0x1230 [ 1012.716078][ T426] cgroup_apply_control+0x93/0x730 [ 1012.721159][ T426] ? css_next_child+0x180/0x180 [ 1012.725984][ T426] ? io_schedule+0x120/0x120 [ 1012.730561][ T426] ? kernfs_fop_write_iter+0x15e/0x410 [ 1012.736012][ T426] ? __kasan_check_write+0x14/0x20 [ 1012.741093][ T426] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1012.746351][ T426] cgroup_subtree_control_write+0xd87/0x1310 [ 1012.752319][ T426] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1012.758806][ T426] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1012.764768][ T426] cgroup_file_write+0x28e/0x590 [ 1012.769706][ T426] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1012.774801][ T426] ? mutex_lock+0xa6/0x110 [ 1012.779189][ T426] ? mutex_trylock+0xb0/0xb0 [ 1012.783750][ T426] ? __kasan_check_write+0x14/0x20 [ 1012.788843][ T426] kernfs_fop_write_iter+0x2d0/0x410 [ 1012.794108][ T426] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1012.799194][ T426] vfs_write+0xc02/0xf20 [ 1012.803410][ T426] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1012.808929][ T426] ? kernel_write+0x3c0/0x3c0 [ 1012.813579][ T426] ? do_sys_openat2+0x397/0x470 [ 1012.818403][ T426] ? vmacache_update+0xb7/0x120 [ 1012.823258][ T426] ? __kasan_check_read+0x11/0x20 [ 1012.828260][ T426] ? __fdget_pos+0x27a/0x300 [ 1012.832831][ T426] ksys_write+0x186/0x2b0 [ 1012.837134][ T426] ? __ia32_sys_read+0x90/0x90 [ 1012.841865][ T426] ? debug_smp_processor_id+0x1c/0x20 [ 1012.847206][ T426] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1012.853243][ T426] __x64_sys_write+0x7b/0x90 [ 1012.857828][ T426] do_syscall_64+0x31/0x70 [ 1012.862240][ T426] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1012.868106][ T426] RIP: 0033:0x7f695884ccf9 [ 1012.872497][ T426] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1012.892083][ T426] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1012.900471][ T426] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1012.908418][ T426] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1012.916367][ T426] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1012.924314][ T426] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1012.932260][ T426] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1012.940883][ T426] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1012.979466][ T420] FAULT_INJECTION: forcing a failure. [ 1012.979466][ T420] name failslab, interval 1, probability 0, space 0, times 0 [ 1012.992169][ T420] CPU: 0 PID: 420 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1013.003766][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1013.013796][ T420] Call Trace: [ 1013.017066][ T420] dump_stack_lvl+0x1e2/0x24b [ 1013.021717][ T420] ? devkmsg_release+0x127/0x127 [ 1013.026627][ T420] ? show_regs_print_info+0x18/0x18 [ 1013.031799][ T420] ? node_tag_clear+0x1e2/0x290 [ 1013.036623][ T420] dump_stack+0x15/0x1d [ 1013.040753][ T420] should_fail+0x3c0/0x510 [ 1013.045143][ T420] ? pids_css_alloc+0x4e/0x120 [ 1013.049894][ T420] __should_failslab+0x9f/0xe0 [ 1013.054628][ T420] should_failslab+0x9/0x20 [ 1013.059103][ T420] kmem_cache_alloc_trace+0x42/0x3a0 [ 1013.064356][ T420] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1013.069353][ T420] pids_css_alloc+0x4e/0x120 [ 1013.073914][ T420] cgroup_apply_control_enable+0x320/0x1230 [ 1013.079776][ T420] cgroup_apply_control+0x93/0x730 [ 1013.084858][ T420] ? css_next_child+0x180/0x180 [ 1013.089680][ T420] ? io_schedule+0x120/0x120 [ 1013.094241][ T420] ? kernfs_fop_write_iter+0x15e/0x410 [ 1013.099682][ T420] ? __kasan_check_write+0x14/0x20 [ 1013.104765][ T420] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1013.110021][ T420] cgroup_subtree_control_write+0xd87/0x1310 [ 1013.115971][ T420] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1013.121922][ T420] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1013.127886][ T420] cgroup_file_write+0x28e/0x590 [ 1013.132795][ T420] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1013.137875][ T420] ? mutex_lock+0xa6/0x110 [ 1013.142263][ T420] ? mutex_trylock+0xb0/0xb0 [ 1013.146824][ T420] ? __kasan_check_write+0x14/0x20 [ 1013.151908][ T420] kernfs_fop_write_iter+0x2d0/0x410 [ 1013.157162][ T420] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1013.162246][ T420] vfs_write+0xc02/0xf20 [ 1013.166485][ T420] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1013.172019][ T420] ? kernel_write+0x3c0/0x3c0 [ 1013.176665][ T420] ? do_sys_openat2+0x397/0x470 [ 1013.181488][ T420] ? vmacache_update+0xb7/0x120 [ 1013.186308][ T420] ? __kasan_check_read+0x11/0x20 [ 1013.191329][ T420] ? __fdget_pos+0x27a/0x300 [ 1013.195892][ T420] ksys_write+0x186/0x2b0 [ 1013.200192][ T420] ? __ia32_sys_read+0x90/0x90 [ 1013.204930][ T420] ? debug_smp_processor_id+0x1c/0x20 [ 1013.211052][ T420] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1013.217085][ T420] __x64_sys_write+0x7b/0x90 [ 1013.221647][ T420] do_syscall_64+0x31/0x70 [ 1013.226142][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1013.232006][ T420] RIP: 0033:0x7f695884ccf9 [ 1013.236391][ T420] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1013.255971][ T420] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1013.264368][ T420] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1013.272312][ T420] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1013.280265][ T420] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1013.288211][ T420] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1013.296157][ T420] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000002 [ 1013.329303][ T423] FAULT_INJECTION: forcing a failure. [ 1013.329303][ T423] name failslab, interval 1, probability 0, space 0, times 0 [ 1013.341917][ T423] CPU: 1 PID: 423 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1013.353512][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1013.363540][ T423] Call Trace: [ 1013.366804][ T423] dump_stack_lvl+0x1e2/0x24b [ 1013.371454][ T423] ? show_regs_print_info+0x18/0x18 [ 1013.376629][ T423] ? pcpu_alloc+0x12f9/0x1370 [ 1013.381278][ T423] dump_stack+0x15/0x1d [ 1013.385403][ T423] should_fail+0x3c0/0x510 [ 1013.389805][ T423] ? percpu_ref_init+0xd5/0x310 [ 1013.394627][ T423] __should_failslab+0x9f/0xe0 [ 1013.399367][ T423] should_failslab+0x9/0x20 [ 1013.403849][ T423] kmem_cache_alloc_trace+0x42/0x3a0 [ 1013.409105][ T423] percpu_ref_init+0xd5/0x310 [ 1013.413752][ T423] ? cgroup_setup_root+0xc70/0xc70 [ 1013.418848][ T423] cgroup_apply_control_enable+0x36a/0x1230 [ 1013.424720][ T423] cgroup_apply_control+0x93/0x730 [ 1013.429811][ T423] ? css_next_child+0x180/0x180 [ 1013.434648][ T423] ? io_schedule+0x120/0x120 [ 1013.439210][ T423] ? kernfs_fop_write_iter+0x15e/0x410 [ 1013.444653][ T423] ? __kasan_check_write+0x14/0x20 [ 1013.449738][ T423] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1013.454996][ T423] cgroup_subtree_control_write+0xd87/0x1310 [ 1013.460947][ T423] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1013.466914][ T423] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1013.472865][ T423] cgroup_file_write+0x28e/0x590 [ 1013.477786][ T423] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1013.482870][ T423] ? mutex_lock+0xa6/0x110 [ 1013.487258][ T423] ? mutex_trylock+0xb0/0xb0 [ 1013.491834][ T423] ? __kasan_check_write+0x14/0x20 [ 1013.496915][ T423] kernfs_fop_write_iter+0x2d0/0x410 [ 1013.502180][ T423] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1013.507272][ T423] vfs_write+0xc02/0xf20 [ 1013.511493][ T423] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1013.517008][ T423] ? kernel_write+0x3c0/0x3c0 [ 1013.521661][ T423] ? do_sys_openat2+0x397/0x470 [ 1013.526582][ T423] ? vmacache_update+0xb7/0x120 [ 1013.531410][ T423] ? __kasan_check_read+0x11/0x20 [ 1013.536421][ T423] ? __fdget_pos+0x27a/0x300 [ 1013.540984][ T423] ksys_write+0x186/0x2b0 [ 1013.545289][ T423] ? __ia32_sys_read+0x90/0x90 [ 1013.550023][ T423] ? debug_smp_processor_id+0x1c/0x20 [ 1013.555364][ T423] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1013.561401][ T423] __x64_sys_write+0x7b/0x90 [ 1013.565964][ T423] do_syscall_64+0x31/0x70 [ 1013.570352][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1013.576217][ T423] RIP: 0033:0x7f695884ccf9 [ 1013.580607][ T423] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1013.600187][ T423] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1013.608574][ T423] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1013.616521][ T423] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1013.624466][ T423] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1013.632413][ T423] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1013.640370][ T423] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000004 executing program [ 1013.689279][ T427] FAULT_INJECTION: forcing a failure. [ 1013.689279][ T427] name failslab, interval 1, probability 0, space 0, times 0 [ 1013.702023][ T427] CPU: 1 PID: 427 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1013.713633][ T427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1013.723666][ T427] Call Trace: [ 1013.726938][ T427] dump_stack_lvl+0x1e2/0x24b [ 1013.731595][ T427] ? show_regs_print_info+0x18/0x18 [ 1013.736766][ T427] ? pcpu_alloc+0x12f9/0x1370 [ 1013.741413][ T427] dump_stack+0x15/0x1d [ 1013.745543][ T427] should_fail+0x3c0/0x510 [ 1013.749934][ T427] ? percpu_ref_init+0xd5/0x310 [ 1013.754758][ T427] __should_failslab+0x9f/0xe0 [ 1013.759496][ T427] should_failslab+0x9/0x20 [ 1013.763969][ T427] kmem_cache_alloc_trace+0x42/0x3a0 [ 1013.769229][ T427] percpu_ref_init+0xd5/0x310 [ 1013.773890][ T427] ? cgroup_setup_root+0xc70/0xc70 [ 1013.778982][ T427] cgroup_apply_control_enable+0x36a/0x1230 [ 1013.784847][ T427] cgroup_apply_control+0x93/0x730 [ 1013.789931][ T427] ? css_next_child+0x180/0x180 [ 1013.794751][ T427] ? io_schedule+0x120/0x120 [ 1013.799315][ T427] ? kernfs_fop_write_iter+0x15e/0x410 [ 1013.804743][ T427] ? __kasan_check_write+0x14/0x20 [ 1013.809825][ T427] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1013.815087][ T427] cgroup_subtree_control_write+0xd87/0x1310 [ 1013.821040][ T427] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1013.826992][ T427] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1013.832945][ T427] cgroup_file_write+0x28e/0x590 [ 1013.837864][ T427] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1013.842953][ T427] ? mutex_lock+0xa6/0x110 [ 1013.847341][ T427] ? mutex_trylock+0xb0/0xb0 [ 1013.851904][ T427] ? __kasan_check_write+0x14/0x20 [ 1013.856985][ T427] kernfs_fop_write_iter+0x2d0/0x410 [ 1013.862243][ T427] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1013.867329][ T427] vfs_write+0xc02/0xf20 [ 1013.871542][ T427] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1013.877071][ T427] ? kernel_write+0x3c0/0x3c0 [ 1013.881729][ T427] ? do_sys_openat2+0x397/0x470 [ 1013.886549][ T427] ? vmacache_update+0xb7/0x120 [ 1013.891425][ T427] ? __kasan_check_read+0x11/0x20 [ 1013.896420][ T427] ? __fdget_pos+0x27a/0x300 [ 1013.900981][ T427] ksys_write+0x186/0x2b0 [ 1013.905284][ T427] ? __ia32_sys_read+0x90/0x90 [ 1013.910018][ T427] ? debug_smp_processor_id+0x1c/0x20 [ 1013.915359][ T427] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1013.921398][ T427] __x64_sys_write+0x7b/0x90 [ 1013.925968][ T427] do_syscall_64+0x31/0x70 [ 1013.930391][ T427] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1013.936254][ T427] RIP: 0033:0x7f695884ccf9 [ 1013.940639][ T427] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1013.960217][ T427] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1013.968602][ T427] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1013.976549][ T427] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1013.984494][ T427] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1013.992438][ T427] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1014.000384][ T427] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000003 [ 1014.039285][ T425] FAULT_INJECTION: forcing a failure. [ 1014.039285][ T425] name failslab, interval 1, probability 0, space 0, times 0 [ 1014.052001][ T425] CPU: 0 PID: 425 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1014.063598][ T425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1014.073628][ T425] Call Trace: [ 1014.076914][ T425] dump_stack_lvl+0x1e2/0x24b [ 1014.081566][ T425] ? devkmsg_release+0x127/0x127 [ 1014.086480][ T425] ? show_regs_print_info+0x18/0x18 [ 1014.091652][ T425] dump_stack+0x15/0x1d [ 1014.095781][ T425] should_fail+0x3c0/0x510 [ 1014.100185][ T425] ? __kernfs_new_node+0x99/0x6e0 [ 1014.105179][ T425] __should_failslab+0x9f/0xe0 [ 1014.109915][ T425] should_failslab+0x9/0x20 [ 1014.114392][ T425] __kmalloc_track_caller+0x67/0x3b0 [ 1014.119646][ T425] ? widen_string+0x40/0x380 [ 1014.124224][ T425] kstrdup_const+0x55/0x90 [ 1014.128609][ T425] __kernfs_new_node+0x99/0x6e0 [ 1014.133428][ T425] ? vsnprintf+0x1cb4/0x1d60 [ 1014.137992][ T425] ? kernfs_new_node+0x170/0x170 [ 1014.142898][ T425] ? ptr_to_hashval+0x60/0x60 [ 1014.147552][ T425] ? stack_trace_snprint+0xe0/0xe0 [ 1014.152641][ T425] ? find_next_bit+0x113/0x120 [ 1014.157387][ T425] ? snprintf+0xd6/0x120 [ 1014.161610][ T425] kernfs_new_node+0x97/0x170 [ 1014.166257][ T425] __kernfs_create_file+0x4a/0x270 [ 1014.171339][ T425] cgroup_addrm_files+0xb01/0x1010 [ 1014.176420][ T425] ? kzalloc+0x20/0x20 [ 1014.180456][ T425] ? node_tag_clear+0x1e2/0x290 [ 1014.185274][ T425] ? delete_node+0x74b/0x7a0 [ 1014.189837][ T425] ? __local_bh_enable_ip+0xa8/0x170 [ 1014.195089][ T425] ? _local_bh_enable+0x30/0x30 [ 1014.199907][ T425] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1014.204899][ T425] css_populate_dir+0x137/0x370 [ 1014.209722][ T425] cgroup_apply_control_enable+0x6cc/0x1230 [ 1014.215583][ T425] cgroup_apply_control+0x93/0x730 [ 1014.220665][ T425] ? css_next_child+0x180/0x180 [ 1014.225490][ T425] ? io_schedule+0x120/0x120 [ 1014.230048][ T425] ? kernfs_fop_write_iter+0x15e/0x410 [ 1014.235477][ T425] ? __kasan_check_write+0x14/0x20 [ 1014.240571][ T425] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1014.245829][ T425] cgroup_subtree_control_write+0xd87/0x1310 [ 1014.251781][ T425] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1014.257731][ T425] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1014.263683][ T425] cgroup_file_write+0x28e/0x590 [ 1014.268591][ T425] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1014.273671][ T425] ? mutex_lock+0xa6/0x110 [ 1014.278059][ T425] ? mutex_trylock+0xb0/0xb0 [ 1014.282618][ T425] ? __kasan_check_write+0x14/0x20 [ 1014.287697][ T425] kernfs_fop_write_iter+0x2d0/0x410 [ 1014.292957][ T425] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1014.298039][ T425] vfs_write+0xc02/0xf20 [ 1014.302254][ T425] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1014.307785][ T425] ? kernel_write+0x3c0/0x3c0 [ 1014.312432][ T425] ? do_sys_openat2+0x397/0x470 [ 1014.317252][ T425] ? vmacache_update+0xb7/0x120 [ 1014.322075][ T425] ? __kasan_check_read+0x11/0x20 [ 1014.327068][ T425] ? __fdget_pos+0x27a/0x300 [ 1014.331628][ T425] ksys_write+0x186/0x2b0 [ 1014.335928][ T425] ? __ia32_sys_read+0x90/0x90 [ 1014.340666][ T425] ? debug_smp_processor_id+0x1c/0x20 [ 1014.346008][ T425] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1014.352054][ T425] __x64_sys_write+0x7b/0x90 [ 1014.356640][ T425] do_syscall_64+0x31/0x70 [ 1014.361029][ T425] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1014.366893][ T425] RIP: 0033:0x7f695884ccf9 [ 1014.371283][ T425] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1014.390864][ T425] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1014.399252][ T425] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1014.407220][ T425] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1014.415169][ T425] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1014.423114][ T425] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1014.431058][ T425] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000009 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1014.439758][ T425] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1014.479309][ T424] FAULT_INJECTION: forcing a failure. [ 1014.479309][ T424] name failslab, interval 1, probability 0, space 0, times 0 [ 1014.492403][ T424] CPU: 1 PID: 424 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1014.504004][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1014.514036][ T424] Call Trace: [ 1014.517304][ T424] dump_stack_lvl+0x1e2/0x24b [ 1014.521959][ T424] ? devkmsg_release+0x127/0x127 [ 1014.526876][ T424] ? show_regs_print_info+0x18/0x18 [ 1014.532046][ T424] ? node_tag_clear+0x1e2/0x290 [ 1014.536866][ T424] dump_stack+0x15/0x1d [ 1014.541007][ T424] should_fail+0x3c0/0x510 [ 1014.545398][ T424] ? pids_css_alloc+0x4e/0x120 [ 1014.550133][ T424] __should_failslab+0x9f/0xe0 [ 1014.554866][ T424] should_failslab+0x9/0x20 [ 1014.559364][ T424] kmem_cache_alloc_trace+0x42/0x3a0 [ 1014.564620][ T424] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1014.569621][ T424] pids_css_alloc+0x4e/0x120 [ 1014.574376][ T424] cgroup_apply_control_enable+0x320/0x1230 [ 1014.580255][ T424] cgroup_apply_control+0x93/0x730 [ 1014.585349][ T424] ? css_next_child+0x180/0x180 [ 1014.590168][ T424] ? io_schedule+0x120/0x120 [ 1014.594731][ T424] ? kernfs_fop_write_iter+0x15e/0x410 [ 1014.600175][ T424] ? __kasan_check_write+0x14/0x20 [ 1014.605260][ T424] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1014.610516][ T424] cgroup_subtree_control_write+0xd87/0x1310 [ 1014.616465][ T424] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1014.622424][ T424] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1014.628373][ T424] cgroup_file_write+0x28e/0x590 [ 1014.633295][ T424] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1014.638384][ T424] ? mutex_lock+0xa6/0x110 [ 1014.642772][ T424] ? mutex_trylock+0xb0/0xb0 [ 1014.647337][ T424] ? __kasan_check_write+0x14/0x20 [ 1014.652418][ T424] kernfs_fop_write_iter+0x2d0/0x410 [ 1014.657702][ T424] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1014.662802][ T424] vfs_write+0xc02/0xf20 [ 1014.667028][ T424] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1014.672549][ T424] ? kernel_write+0x3c0/0x3c0 [ 1014.677208][ T424] ? do_sys_openat2+0x397/0x470 [ 1014.682040][ T424] ? vmacache_update+0xb7/0x120 [ 1014.686863][ T424] ? __kasan_check_read+0x11/0x20 [ 1014.691861][ T424] ? __fdget_pos+0x27a/0x300 [ 1014.696424][ T424] ksys_write+0x186/0x2b0 [ 1014.700738][ T424] ? __ia32_sys_read+0x90/0x90 [ 1014.705544][ T424] ? debug_smp_processor_id+0x1c/0x20 [ 1014.710895][ T424] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1014.716931][ T424] __x64_sys_write+0x7b/0x90 [ 1014.721503][ T424] do_syscall_64+0x31/0x70 [ 1014.725898][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1014.731763][ T424] RIP: 0033:0x7f695884ccf9 [ 1014.736157][ T424] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1014.755752][ T424] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1014.764143][ T424] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1014.772105][ T424] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1014.780082][ T424] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1014.788035][ T424] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1014.796003][ T424] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000002 [ 1014.859230][ T431] FAULT_INJECTION: forcing a failure. [ 1014.859230][ T431] name failslab, interval 1, probability 0, space 0, times 0 [ 1014.871921][ T431] CPU: 1 PID: 431 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1014.883554][ T431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1014.893583][ T431] Call Trace: [ 1014.896853][ T431] dump_stack_lvl+0x1e2/0x24b [ 1014.901507][ T431] ? show_regs_print_info+0x18/0x18 [ 1014.906677][ T431] ? pcpu_alloc+0x12f9/0x1370 [ 1014.911341][ T431] dump_stack+0x15/0x1d [ 1014.915469][ T431] should_fail+0x3c0/0x510 [ 1014.919856][ T431] ? percpu_ref_init+0xd5/0x310 [ 1014.924697][ T431] __should_failslab+0x9f/0xe0 [ 1014.929434][ T431] should_failslab+0x9/0x20 [ 1014.933906][ T431] kmem_cache_alloc_trace+0x42/0x3a0 [ 1014.939163][ T431] percpu_ref_init+0xd5/0x310 [ 1014.943810][ T431] ? cgroup_setup_root+0xc70/0xc70 [ 1014.948895][ T431] cgroup_apply_control_enable+0x36a/0x1230 [ 1014.954796][ T431] cgroup_apply_control+0x93/0x730 [ 1014.959879][ T431] ? css_next_child+0x180/0x180 [ 1014.964702][ T431] ? io_schedule+0x120/0x120 [ 1014.969270][ T431] ? kernfs_fop_write_iter+0x15e/0x410 [ 1014.974711][ T431] ? __kasan_check_write+0x14/0x20 [ 1014.979800][ T431] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1014.985054][ T431] cgroup_subtree_control_write+0xd87/0x1310 [ 1014.991004][ T431] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1014.996959][ T431] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1015.002909][ T431] cgroup_file_write+0x28e/0x590 [ 1015.007834][ T431] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1015.012918][ T431] ? mutex_lock+0xa6/0x110 [ 1015.017307][ T431] ? mutex_trylock+0xb0/0xb0 [ 1015.021872][ T431] ? __kasan_check_write+0x14/0x20 [ 1015.026955][ T431] kernfs_fop_write_iter+0x2d0/0x410 [ 1015.032212][ T431] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1015.037294][ T431] vfs_write+0xc02/0xf20 [ 1015.041513][ T431] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1015.047039][ T431] ? kernel_write+0x3c0/0x3c0 [ 1015.051689][ T431] ? do_sys_openat2+0x397/0x470 [ 1015.056508][ T431] ? vmacache_update+0xb7/0x120 [ 1015.061330][ T431] ? __kasan_check_read+0x11/0x20 [ 1015.066376][ T431] ? __fdget_pos+0x27a/0x300 [ 1015.070946][ T431] ksys_write+0x186/0x2b0 [ 1015.075256][ T431] ? __ia32_sys_read+0x90/0x90 [ 1015.080010][ T431] ? debug_smp_processor_id+0x1c/0x20 [ 1015.085359][ T431] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1015.091403][ T431] __x64_sys_write+0x7b/0x90 [ 1015.095967][ T431] do_syscall_64+0x31/0x70 [ 1015.100355][ T431] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1015.106219][ T431] RIP: 0033:0x7f695884ccf9 [ 1015.110610][ T431] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1015.130211][ T431] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1015.138607][ T431] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1015.146555][ T431] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1015.154500][ T431] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1015.162454][ T431] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1015.170413][ T431] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000004 [ 1015.229317][ T430] FAULT_INJECTION: forcing a failure. [ 1015.229317][ T430] name failslab, interval 1, probability 0, space 0, times 0 [ 1015.244695][ T430] CPU: 0 PID: 430 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1015.256291][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1015.266318][ T430] Call Trace: [ 1015.269584][ T430] dump_stack_lvl+0x1e2/0x24b [ 1015.274235][ T430] ? show_regs_print_info+0x18/0x18 [ 1015.279425][ T430] ? pcpu_alloc+0x12f9/0x1370 [ 1015.284079][ T430] dump_stack+0x15/0x1d [ 1015.288265][ T430] should_fail+0x3c0/0x510 [ 1015.292653][ T430] ? percpu_ref_init+0xd5/0x310 [ 1015.297482][ T430] __should_failslab+0x9f/0xe0 [ 1015.302215][ T430] should_failslab+0x9/0x20 [ 1015.306688][ T430] kmem_cache_alloc_trace+0x42/0x3a0 [ 1015.311944][ T430] percpu_ref_init+0xd5/0x310 [ 1015.316589][ T430] ? cgroup_setup_root+0xc70/0xc70 [ 1015.321669][ T430] cgroup_apply_control_enable+0x36a/0x1230 [ 1015.327535][ T430] cgroup_apply_control+0x93/0x730 [ 1015.332631][ T430] ? css_next_child+0x180/0x180 [ 1015.337523][ T430] ? io_schedule+0x120/0x120 [ 1015.342082][ T430] ? kernfs_fop_write_iter+0x15e/0x410 [ 1015.347513][ T430] ? __kasan_check_write+0x14/0x20 [ 1015.352623][ T430] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1015.357994][ T430] cgroup_subtree_control_write+0xd87/0x1310 [ 1015.363948][ T430] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1015.369900][ T430] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1015.375899][ T430] cgroup_file_write+0x28e/0x590 [ 1015.380816][ T430] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1015.385909][ T430] ? mutex_lock+0xa6/0x110 [ 1015.390299][ T430] ? mutex_trylock+0xb0/0xb0 [ 1015.394870][ T430] ? __kasan_check_write+0x14/0x20 [ 1015.399967][ T430] kernfs_fop_write_iter+0x2d0/0x410 [ 1015.405226][ T430] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1015.410311][ T430] vfs_write+0xc02/0xf20 [ 1015.414531][ T430] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1015.420066][ T430] ? kernel_write+0x3c0/0x3c0 [ 1015.424714][ T430] ? do_sys_openat2+0x397/0x470 [ 1015.429538][ T430] ? vmacache_update+0xb7/0x120 [ 1015.434360][ T430] ? __kasan_check_read+0x11/0x20 [ 1015.439356][ T430] ? __fdget_pos+0x27a/0x300 [ 1015.443919][ T430] ksys_write+0x186/0x2b0 [ 1015.448223][ T430] ? __ia32_sys_read+0x90/0x90 [ 1015.452972][ T430] ? debug_smp_processor_id+0x1c/0x20 [ 1015.458316][ T430] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1015.464353][ T430] __x64_sys_write+0x7b/0x90 [ 1015.468915][ T430] do_syscall_64+0x31/0x70 [ 1015.473301][ T430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1015.479167][ T430] RIP: 0033:0x7f695884ccf9 [ 1015.483556][ T430] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1015.503132][ T430] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1015.511520][ T430] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1015.519484][ T430] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1015.527517][ T430] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1015.535462][ T430] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1015.543410][ T430] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000002 [ 1015.599275][ T432] FAULT_INJECTION: forcing a failure. [ 1015.599275][ T432] name failslab, interval 1, probability 0, space 0, times 0 [ 1015.611932][ T432] CPU: 0 PID: 432 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1015.623530][ T432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1015.633561][ T432] Call Trace: [ 1015.636828][ T432] dump_stack_lvl+0x1e2/0x24b [ 1015.641479][ T432] ? devkmsg_release+0x127/0x127 [ 1015.646392][ T432] ? show_regs_print_info+0x18/0x18 [ 1015.651562][ T432] dump_stack+0x15/0x1d [ 1015.655690][ T432] should_fail+0x3c0/0x510 [ 1015.660080][ T432] ? __kernfs_new_node+0x99/0x6e0 [ 1015.665082][ T432] __should_failslab+0x9f/0xe0 [ 1015.669814][ T432] should_failslab+0x9/0x20 [ 1015.674290][ T432] __kmalloc_track_caller+0x67/0x3b0 [ 1015.679547][ T432] ? widen_string+0x40/0x380 [ 1015.684111][ T432] kstrdup_const+0x55/0x90 [ 1015.688496][ T432] __kernfs_new_node+0x99/0x6e0 [ 1015.693321][ T432] ? vsnprintf+0x1cb4/0x1d60 [ 1015.697883][ T432] ? kernfs_new_node+0x170/0x170 [ 1015.702797][ T432] ? ptr_to_hashval+0x60/0x60 [ 1015.707446][ T432] ? stack_trace_snprint+0xe0/0xe0 [ 1015.712528][ T432] ? snprintf+0xd6/0x120 [ 1015.716742][ T432] kernfs_new_node+0x97/0x170 [ 1015.721391][ T432] __kernfs_create_file+0x4a/0x270 [ 1015.726474][ T432] cgroup_addrm_files+0xb01/0x1010 [ 1015.731555][ T432] ? kzalloc+0x20/0x20 [ 1015.735594][ T432] ? node_tag_clear+0x1e2/0x290 [ 1015.740413][ T432] ? delete_node+0x74b/0x7a0 [ 1015.744978][ T432] ? __local_bh_enable_ip+0xa8/0x170 [ 1015.750237][ T432] ? _local_bh_enable+0x30/0x30 [ 1015.755069][ T432] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1015.760071][ T432] css_populate_dir+0x137/0x370 [ 1015.764902][ T432] cgroup_apply_control_enable+0x6cc/0x1230 [ 1015.770764][ T432] cgroup_apply_control+0x93/0x730 [ 1015.775933][ T432] ? css_next_child+0x180/0x180 [ 1015.780753][ T432] ? io_schedule+0x120/0x120 [ 1015.785322][ T432] ? kernfs_fop_write_iter+0x15e/0x410 [ 1015.790754][ T432] ? __kasan_check_write+0x14/0x20 [ 1015.795835][ T432] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1015.801093][ T432] cgroup_subtree_control_write+0xd87/0x1310 [ 1015.807046][ T432] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1015.813083][ T432] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1015.819034][ T432] cgroup_file_write+0x28e/0x590 [ 1015.823945][ T432] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1015.829030][ T432] ? mutex_lock+0xa6/0x110 [ 1015.833419][ T432] ? mutex_trylock+0xb0/0xb0 [ 1015.837981][ T432] ? __kasan_check_write+0x14/0x20 [ 1015.843072][ T432] kernfs_fop_write_iter+0x2d0/0x410 [ 1015.848344][ T432] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1015.853437][ T432] vfs_write+0xc02/0xf20 [ 1015.857660][ T432] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1015.863180][ T432] ? kernel_write+0x3c0/0x3c0 [ 1015.867849][ T432] ? do_sys_openat2+0x397/0x470 [ 1015.872672][ T432] ? vmacache_update+0xb7/0x120 [ 1015.877506][ T432] ? __kasan_check_read+0x11/0x20 [ 1015.882503][ T432] ? __fdget_pos+0x27a/0x300 [ 1015.887080][ T432] ksys_write+0x186/0x2b0 [ 1015.891389][ T432] ? __ia32_sys_read+0x90/0x90 [ 1015.896121][ T432] ? debug_smp_processor_id+0x1c/0x20 [ 1015.901465][ T432] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1015.907514][ T432] __x64_sys_write+0x7b/0x90 [ 1015.912085][ T432] do_syscall_64+0x31/0x70 [ 1015.916481][ T432] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1015.922342][ T432] RIP: 0033:0x7f695884ccf9 [ 1015.926728][ T432] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1015.946304][ T432] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1015.954687][ T432] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1015.962635][ T432] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1015.970581][ T432] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1015.978527][ T432] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1015.986486][ T432] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 000000000000000a write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1015.994566][ T432] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1016.029206][ T433] FAULT_INJECTION: forcing a failure. [ 1016.029206][ T433] name failslab, interval 1, probability 0, space 0, times 0 [ 1016.041925][ T433] CPU: 0 PID: 433 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1016.053526][ T433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1016.063559][ T433] Call Trace: [ 1016.066829][ T433] dump_stack_lvl+0x1e2/0x24b [ 1016.071492][ T433] ? devkmsg_release+0x127/0x127 [ 1016.076407][ T433] ? show_regs_print_info+0x18/0x18 [ 1016.081578][ T433] ? node_tag_clear+0x1e2/0x290 [ 1016.086419][ T433] dump_stack+0x15/0x1d [ 1016.090550][ T433] should_fail+0x3c0/0x510 [ 1016.094945][ T433] ? pids_css_alloc+0x4e/0x120 [ 1016.099684][ T433] __should_failslab+0x9f/0xe0 [ 1016.104418][ T433] should_failslab+0x9/0x20 [ 1016.108893][ T433] kmem_cache_alloc_trace+0x42/0x3a0 [ 1016.114149][ T433] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1016.119148][ T433] pids_css_alloc+0x4e/0x120 [ 1016.123708][ T433] cgroup_apply_control_enable+0x320/0x1230 [ 1016.129590][ T433] cgroup_apply_control+0x93/0x730 [ 1016.134676][ T433] ? css_next_child+0x180/0x180 [ 1016.139500][ T433] ? io_schedule+0x120/0x120 [ 1016.144062][ T433] ? kernfs_fop_write_iter+0x15e/0x410 [ 1016.149490][ T433] ? __kasan_check_write+0x14/0x20 [ 1016.154576][ T433] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1016.159838][ T433] cgroup_subtree_control_write+0xd87/0x1310 [ 1016.165793][ T433] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1016.171747][ T433] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1016.177697][ T433] cgroup_file_write+0x28e/0x590 [ 1016.182607][ T433] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1016.187694][ T433] ? mutex_lock+0xa6/0x110 [ 1016.192086][ T433] ? mutex_trylock+0xb0/0xb0 [ 1016.196648][ T433] ? __kasan_check_write+0x14/0x20 [ 1016.201730][ T433] kernfs_fop_write_iter+0x2d0/0x410 [ 1016.207045][ T433] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1016.212142][ T433] vfs_write+0xc02/0xf20 [ 1016.216357][ T433] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1016.221879][ T433] ? kernel_write+0x3c0/0x3c0 [ 1016.226534][ T433] ? do_sys_openat2+0x397/0x470 [ 1016.231356][ T433] ? vmacache_update+0xb7/0x120 [ 1016.236194][ T433] ? __kasan_check_read+0x11/0x20 [ 1016.241200][ T433] ? __fdget_pos+0x27a/0x300 [ 1016.245761][ T433] ksys_write+0x186/0x2b0 [ 1016.250068][ T433] ? __ia32_sys_read+0x90/0x90 [ 1016.254826][ T433] ? debug_smp_processor_id+0x1c/0x20 [ 1016.260176][ T433] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1016.266219][ T433] __x64_sys_write+0x7b/0x90 [ 1016.270786][ T433] do_syscall_64+0x31/0x70 [ 1016.275175][ T433] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1016.281037][ T433] RIP: 0033:0x7f695884ccf9 [ 1016.285425][ T433] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1016.305005][ T433] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1016.313402][ T433] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1016.321357][ T433] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 1016.329319][ T433] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1016.337267][ T433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1016.345213][ T433] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000003 [ 1016.356900][ T373] ------------[ cut here ]------------ [ 1016.362405][ T373] WARNING: CPU: 1 PID: 373 at fs/namespace.c:1168 mntput_no_expire+0xb56/0xc10 [ 1016.371323][ T373] Modules linked in: [ 1016.375216][ T373] CPU: 1 PID: 373 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1016.386836][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1016.396896][ T373] RIP: 0010:mntput_no_expire+0xb56/0xc10 [ 1016.402526][ T373] Code: b0 f3 b5 ff 4c 89 e7 e8 d8 13 01 00 e9 cb f5 ff ff e8 9e f3 b5 ff e9 9a fa ff ff e8 94 f3 b5 ff e9 ae f9 ff ff e8 8a f3 b5 ff <0f> 0b e9 e2 f7 ff ff e8 7e f3 b5 ff e9 98 f9 ff ff 48 c7 c1 98 8e [ 1016.422142][ T373] RSP: 0018:ffffc90000b87b80 EFLAGS: 00010293 [ 1016.428202][ T373] RAX: ffffffff81b707d6 RBX: 00000000ffffffff RCX: ffff88811d1113c0 [ 1016.436181][ T373] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 00000000ffffffff [ 1016.444154][ T373] RBP: ffffc90000b87c70 R08: ffffffff81b6ffb2 R09: 0000000000000003 [ 1016.452133][ T373] R10: fffff52000170f61 R11: 0000000000000004 R12: ffff88810e5d7500 [ 1016.460101][ T373] R13: 1ffff92000170f7c R14: ffffc90000b87c00 R15: dffffc0000000000 [ 1016.468062][ T373] FS: 0000555555ad83c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 1016.476991][ T373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1016.483575][ T373] CR2: 0000555555ae26f8 CR3: 000000011d102000 CR4: 00000000003506a0 [ 1016.491544][ T373] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1016.499513][ T373] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1016.507463][ T373] Call Trace: [ 1016.510767][ T373] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1016.516305][ T373] ? up_write+0xd0/0xd0 [ 1016.520462][ T373] ? io_schedule+0x120/0x120 [ 1016.525051][ T373] ? vfs_submount+0xb0/0xb0 [ 1016.529556][ T373] namespace_unlock+0x448/0x4f0 [ 1016.534396][ T373] ? umount_tree+0xf50/0xf50 [ 1016.538999][ T373] ? __detach_mounts+0x650/0x650 [ 1016.543925][ T373] ? selinux_umount+0xf0/0x130 [ 1016.548668][ T373] ? security_sb_umount+0x9d/0xb0 [ 1016.553707][ T373] path_umount+0xebd/0xf70 [ 1016.558111][ T373] ? namespace_unlock+0x4f0/0x4f0 [ 1016.563137][ T373] ? user_path_at_empty+0x40/0x50 [ 1016.568143][ T373] __x64_sys_umount+0x122/0x170 [ 1016.572998][ T373] ? path_umount+0xf70/0xf70 [ 1016.577572][ T373] ? debug_smp_processor_id+0x1c/0x20 [ 1016.582978][ T373] ? exit_to_user_mode_prepare+0x3b/0xe0 [ 1016.588594][ T373] do_syscall_64+0x31/0x70 [ 1016.593020][ T373] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1016.598908][ T373] RIP: 0033:0x7f695884e0a7 [ 1016.603304][ T373] Code: 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 1016.622911][ T373] RSP: 002b:00007ffd60388de8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 1016.631321][ T373] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f695884e0a7 [ 1016.639300][ T373] RDX: 00007ffd60388ea9 RSI: 000000000000000a RDI: 00007ffd60388ea0 [ 1016.647271][ T373] RBP: 00007ffd60388ea0 R08: 00000000ffffffff R09: 00007ffd60388c80 [ 1016.655250][ T373] R10: 0000555555ada763 R11: 0000000000000206 R12: 00007ffd60389f10 [ 1016.663224][ T373] R13: 0000555555ada6c0 R14: 00007ffd60388e10 R15: 0000000000000004 [ 1016.671197][ T373] ---[ end trace 2c8d7c89d484fe87 ]--- [ 1016.676787][ T373] ------------[ cut here ]------------ [ 1016.682276][ T373] WARNING: CPU: 1 PID: 373 at fs/namespace.c:1168 mntput_no_expire+0xb56/0xc10 [ 1016.691211][ T373] Modules linked in: [ 1016.695112][ T373] CPU: 1 PID: 373 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1016.706757][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1016.716833][ T373] RIP: 0010:mntput_no_expire+0xb56/0xc10 [ 1016.722474][ T373] Code: b0 f3 b5 ff 4c 89 e7 e8 d8 13 01 00 e9 cb f5 ff ff e8 9e f3 b5 ff e9 9a fa ff ff e8 94 f3 b5 ff e9 ae f9 ff ff e8 8a f3 b5 ff <0f> 0b e9 e2 f7 ff ff e8 7e f3 b5 ff e9 98 f9 ff ff 48 c7 c1 98 8e [ 1016.742090][ T373] RSP: 0018:ffffc90000b87c80 EFLAGS: 00010293 [ 1016.748134][ T373] RAX: ffffffff81b707d6 RBX: 00000000fffffffe RCX: ffff88811d1113c0 [ 1016.756109][ T373] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000ffffffff [ 1016.764088][ T373] RBP: ffffc90000b87d70 R08: ffffffff81b6ffb2 R09: 0000000000000003 [ 1016.772077][ T373] R10: fffff52000170f81 R11: 0000000000000004 R12: ffff88810e5d7500 [ 1016.780055][ T373] R13: 1ffff92000170f9c R14: ffffc90000b87d00 R15: dffffc0000000000 [ 1016.788022][ T373] FS: 0000555555ad83c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 1016.796954][ T373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1016.803536][ T373] CR2: 0000555555ae26f8 CR3: 000000011d102000 CR4: 00000000003506a0 [ 1016.811512][ T373] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1016.819492][ T373] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1016.827440][ T373] Call Trace: [ 1016.830748][ T373] ? __rcu_read_lock+0x50/0x50 [ 1016.835506][ T373] ? umount_tree+0xf50/0xf50 [ 1016.840111][ T373] ? vfs_submount+0xb0/0xb0 [ 1016.844617][ T373] ? dput+0x517/0x600 [ 1016.848587][ T373] ? security_sb_umount+0x9d/0xb0 [ 1016.853621][ T373] path_umount+0x201/0xf70 [ 1016.858033][ T373] ? namespace_unlock+0x4f0/0x4f0 [ 1016.863108][ T373] ? user_path_at_empty+0x40/0x50 [ 1016.868129][ T373] __x64_sys_umount+0x122/0x170 [ 1016.872988][ T373] ? path_umount+0xf70/0xf70 [ 1016.877567][ T373] ? debug_smp_processor_id+0x1c/0x20 [ 1016.882951][ T373] ? exit_to_user_mode_prepare+0x3b/0xe0 [ 1016.888589][ T373] do_syscall_64+0x31/0x70 [ 1016.893038][ T373] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1016.899047][ T373] RIP: 0033:0x7f695884e0a7 [ 1016.903447][ T373] Code: 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 1016.923060][ T373] RSP: 002b:00007ffd60388de8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 executing program [ 1016.931485][ T373] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f695884e0a7 [ 1016.939459][ T373] RDX: 00007ffd60388ea9 RSI: 000000000000000a RDI: 00007ffd60388ea0 [ 1016.947414][ T373] RBP: 00007ffd60388ea0 R08: 00000000ffffffff R09: 00007ffd60388c80 [ 1016.955389][ T373] R10: 0000555555ada763 R11: 0000000000000206 R12: 00007ffd60389f10 [ 1016.963371][ T373] R13: 0000555555ada6c0 R14: 00007ffd60388e10 R15: 0000000000000004 [ 1016.971347][ T373] ---[ end trace 2c8d7c89d484fe88 ]--- [ 1016.979448][ T436] FAULT_INJECTION: forcing a failure. [ 1016.979448][ T436] name failslab, interval 1, probability 0, space 0, times 0 [ 1016.992159][ T436] CPU: 0 PID: 436 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1017.003769][ T436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1017.013805][ T436] Call Trace: [ 1017.017070][ T436] dump_stack_lvl+0x1e2/0x24b [ 1017.021722][ T436] ? devkmsg_release+0x127/0x127 [ 1017.026629][ T436] ? show_regs_print_info+0x18/0x18 [ 1017.031800][ T436] ? node_tag_clear+0x1e2/0x290 [ 1017.036631][ T436] dump_stack+0x15/0x1d [ 1017.040760][ T436] should_fail+0x3c0/0x510 [ 1017.045146][ T436] ? pids_css_alloc+0x4e/0x120 [ 1017.049883][ T436] __should_failslab+0x9f/0xe0 [ 1017.054615][ T436] should_failslab+0x9/0x20 [ 1017.059097][ T436] kmem_cache_alloc_trace+0x42/0x3a0 [ 1017.064353][ T436] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1017.069360][ T436] pids_css_alloc+0x4e/0x120 [ 1017.073922][ T436] cgroup_apply_control_enable+0x320/0x1230 [ 1017.079785][ T436] cgroup_apply_control+0x93/0x730 [ 1017.084866][ T436] ? css_next_child+0x180/0x180 [ 1017.089688][ T436] ? io_schedule+0x120/0x120 [ 1017.094249][ T436] ? kernfs_fop_write_iter+0x15e/0x410 [ 1017.099689][ T436] ? __kasan_check_write+0x14/0x20 [ 1017.104780][ T436] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1017.110036][ T436] cgroup_subtree_control_write+0xd87/0x1310 [ 1017.115983][ T436] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1017.121929][ T436] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1017.127875][ T436] cgroup_file_write+0x28e/0x590 [ 1017.132782][ T436] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1017.137868][ T436] ? mutex_lock+0xa6/0x110 [ 1017.142278][ T436] ? mutex_trylock+0xb0/0xb0 [ 1017.146840][ T436] ? __kasan_check_write+0x14/0x20 [ 1017.151926][ T436] kernfs_fop_write_iter+0x2d0/0x410 [ 1017.157215][ T436] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1017.162307][ T436] vfs_write+0xc02/0xf20 [ 1017.166528][ T436] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1017.172046][ T436] ? kernel_write+0x3c0/0x3c0 [ 1017.176697][ T436] ? do_sys_openat2+0x397/0x470 [ 1017.181517][ T436] ? vmacache_update+0xb7/0x120 [ 1017.186336][ T436] ? __kasan_check_read+0x11/0x20 [ 1017.191329][ T436] ? __fdget_pos+0x27a/0x300 [ 1017.195889][ T436] ksys_write+0x186/0x2b0 [ 1017.200188][ T436] ? __ia32_sys_read+0x90/0x90 [ 1017.204924][ T436] ? debug_smp_processor_id+0x1c/0x20 [ 1017.210265][ T436] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1017.216298][ T436] __x64_sys_write+0x7b/0x90 [ 1017.220862][ T436] do_syscall_64+0x31/0x70 [ 1017.225248][ T436] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1017.231112][ T436] RIP: 0033:0x7f695884ccf9 [ 1017.235510][ T436] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1017.255089][ T436] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1017.263524][ T436] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1017.271465][ T436] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1017.279411][ T436] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1017.287367][ T436] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1017.295326][ T436] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 000000000000000b [ 1017.329215][ T437] FAULT_INJECTION: forcing a failure. [ 1017.329215][ T437] name failslab, interval 1, probability 0, space 0, times 0 [ 1017.341850][ T437] CPU: 0 PID: 437 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1017.353450][ T437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1017.363483][ T437] Call Trace: [ 1017.366749][ T437] dump_stack_lvl+0x1e2/0x24b [ 1017.371412][ T437] ? devkmsg_release+0x127/0x127 [ 1017.376334][ T437] ? show_regs_print_info+0x18/0x18 [ 1017.381519][ T437] dump_stack+0x15/0x1d [ 1017.385647][ T437] should_fail+0x3c0/0x510 [ 1017.390034][ T437] ? __kernfs_new_node+0x99/0x6e0 [ 1017.395027][ T437] __should_failslab+0x9f/0xe0 [ 1017.399773][ T437] should_failslab+0x9/0x20 [ 1017.404258][ T437] __kmalloc_track_caller+0x67/0x3b0 [ 1017.409515][ T437] ? widen_string+0x40/0x380 [ 1017.414078][ T437] kstrdup_const+0x55/0x90 [ 1017.418482][ T437] __kernfs_new_node+0x99/0x6e0 [ 1017.423300][ T437] ? vsnprintf+0x1cb4/0x1d60 [ 1017.427861][ T437] ? kernfs_new_node+0x170/0x170 [ 1017.432775][ T437] ? ptr_to_hashval+0x60/0x60 [ 1017.437422][ T437] ? stack_trace_snprint+0xe0/0xe0 [ 1017.442506][ T437] ? snprintf+0xd6/0x120 [ 1017.446724][ T437] kernfs_new_node+0x97/0x170 [ 1017.451386][ T437] __kernfs_create_file+0x4a/0x270 [ 1017.456471][ T437] cgroup_addrm_files+0xb01/0x1010 [ 1017.461552][ T437] ? kzalloc+0x20/0x20 [ 1017.465591][ T437] ? node_tag_clear+0x1e2/0x290 [ 1017.470414][ T437] ? delete_node+0x74b/0x7a0 [ 1017.474980][ T437] ? __local_bh_enable_ip+0xa8/0x170 [ 1017.480240][ T437] ? _local_bh_enable+0x30/0x30 [ 1017.485061][ T437] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1017.490068][ T437] css_populate_dir+0x137/0x370 [ 1017.494891][ T437] cgroup_apply_control_enable+0x6cc/0x1230 [ 1017.500754][ T437] cgroup_apply_control+0x93/0x730 [ 1017.505837][ T437] ? css_next_child+0x180/0x180 [ 1017.510662][ T437] ? io_schedule+0x120/0x120 [ 1017.515223][ T437] ? kernfs_fop_write_iter+0x15e/0x410 [ 1017.520665][ T437] ? __kasan_check_write+0x14/0x20 [ 1017.525751][ T437] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1017.531007][ T437] cgroup_subtree_control_write+0xd87/0x1310 [ 1017.536963][ T437] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1017.542914][ T437] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1017.548867][ T437] cgroup_file_write+0x28e/0x590 [ 1017.553773][ T437] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1017.558861][ T437] ? mutex_lock+0xa6/0x110 [ 1017.563250][ T437] ? mutex_trylock+0xb0/0xb0 [ 1017.567817][ T437] ? __kasan_check_write+0x14/0x20 [ 1017.572914][ T437] kernfs_fop_write_iter+0x2d0/0x410 [ 1017.578172][ T437] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1017.583254][ T437] vfs_write+0xc02/0xf20 [ 1017.587470][ T437] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1017.592986][ T437] ? kernel_write+0x3c0/0x3c0 [ 1017.597634][ T437] ? do_sys_openat2+0x397/0x470 [ 1017.602454][ T437] ? vmacache_update+0xb7/0x120 [ 1017.607274][ T437] ? __kasan_check_read+0x11/0x20 [ 1017.612269][ T437] ? __fdget_pos+0x27a/0x300 [ 1017.616835][ T437] ksys_write+0x186/0x2b0 [ 1017.621136][ T437] ? __ia32_sys_read+0x90/0x90 [ 1017.625869][ T437] ? debug_smp_processor_id+0x1c/0x20 [ 1017.631212][ T437] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1017.637252][ T437] __x64_sys_write+0x7b/0x90 [ 1017.641817][ T437] do_syscall_64+0x31/0x70 [ 1017.646203][ T437] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1017.652085][ T437] RIP: 0033:0x7f695884ccf9 [ 1017.656559][ T437] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1017.676134][ T437] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1017.684537][ T437] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1017.692484][ T437] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1017.700430][ T437] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1017.708378][ T437] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1017.716325][ T437] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1017.725872][ T437] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 1017.759426][ T439] FAULT_INJECTION: forcing a failure. [ 1017.759426][ T439] name failslab, interval 1, probability 0, space 0, times 0 [ 1017.772097][ T439] CPU: 0 PID: 439 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1017.783727][ T439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1017.793758][ T439] Call Trace: [ 1017.797042][ T439] dump_stack_lvl+0x1e2/0x24b [ 1017.801700][ T439] ? show_regs_print_info+0x18/0x18 [ 1017.806879][ T439] ? pcpu_alloc+0x12f9/0x1370 [ 1017.811527][ T439] dump_stack+0x15/0x1d [ 1017.815656][ T439] should_fail+0x3c0/0x510 [ 1017.820049][ T439] ? percpu_ref_init+0xd5/0x310 [ 1017.824874][ T439] __should_failslab+0x9f/0xe0 [ 1017.829606][ T439] should_failslab+0x9/0x20 [ 1017.834079][ T439] kmem_cache_alloc_trace+0x42/0x3a0 [ 1017.839334][ T439] percpu_ref_init+0xd5/0x310 [ 1017.843987][ T439] ? cgroup_setup_root+0xc70/0xc70 [ 1017.849114][ T439] cgroup_apply_control_enable+0x36a/0x1230 [ 1017.854979][ T439] cgroup_apply_control+0x93/0x730 [ 1017.860061][ T439] ? css_next_child+0x180/0x180 [ 1017.864883][ T439] ? io_schedule+0x120/0x120 [ 1017.869441][ T439] ? kernfs_fop_write_iter+0x15e/0x410 [ 1017.874871][ T439] ? __kasan_check_write+0x14/0x20 [ 1017.879952][ T439] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1017.885221][ T439] cgroup_subtree_control_write+0xd87/0x1310 [ 1017.891173][ T439] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1017.897123][ T439] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1017.903071][ T439] cgroup_file_write+0x28e/0x590 [ 1017.907976][ T439] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1017.913074][ T439] ? mutex_lock+0xa6/0x110 [ 1017.917460][ T439] ? mutex_trylock+0xb0/0xb0 [ 1017.922020][ T439] ? __kasan_check_write+0x14/0x20 [ 1017.927117][ T439] kernfs_fop_write_iter+0x2d0/0x410 [ 1017.932371][ T439] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1017.937453][ T439] vfs_write+0xc02/0xf20 [ 1017.941671][ T439] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1017.947183][ T439] ? kernel_write+0x3c0/0x3c0 [ 1017.951832][ T439] ? do_sys_openat2+0x397/0x470 [ 1017.956659][ T439] ? vmacache_update+0xb7/0x120 [ 1017.961487][ T439] ? __kasan_check_read+0x11/0x20 [ 1017.966482][ T439] ? __fdget_pos+0x27a/0x300 [ 1017.971052][ T439] ksys_write+0x186/0x2b0 [ 1017.975353][ T439] ? __ia32_sys_read+0x90/0x90 [ 1017.980105][ T439] ? debug_smp_processor_id+0x1c/0x20 [ 1017.985469][ T439] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1017.991519][ T439] __x64_sys_write+0x7b/0x90 [ 1017.996082][ T439] do_syscall_64+0x31/0x70 [ 1018.000474][ T439] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1018.006338][ T439] RIP: 0033:0x7f695884ccf9 [ 1018.010728][ T439] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1018.030306][ T439] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1018.038701][ T439] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1018.046655][ T439] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program [ 1018.054601][ T439] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1018.062544][ T439] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1018.070493][ T439] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000005 [ 1018.119456][ T434] FAULT_INJECTION: forcing a failure. [ 1018.119456][ T434] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 1018.132673][ T434] CPU: 1 PID: 434 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1018.144271][ T434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1018.154302][ T434] Call Trace: [ 1018.157572][ T434] dump_stack_lvl+0x1e2/0x24b [ 1018.162226][ T434] ? show_regs_print_info+0x18/0x18 [ 1018.167398][ T434] ? __kasan_check_write+0x14/0x20 [ 1018.172479][ T434] dump_stack+0x15/0x1d [ 1018.176614][ T434] should_fail+0x3c0/0x510 [ 1018.181068][ T434] should_fail_alloc_page+0x4f/0x60 [ 1018.186241][ T434] __alloc_pages_nodemask+0x1b9/0x820 [ 1018.191618][ T434] ? cgroup_addrm_files+0xf96/0x1010 [ 1018.196874][ T434] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 1018.202441][ T434] ? kzalloc+0x20/0x20 [ 1018.206494][ T434] ? node_tag_clear+0x1e2/0x290 [ 1018.211318][ T434] allocate_slab+0x6b/0x350 [ 1018.215795][ T434] ___slab_alloc+0x143/0x2f0 [ 1018.220357][ T434] ? pids_css_alloc+0x4e/0x120 [ 1018.225095][ T434] kmem_cache_alloc_trace+0x278/0x3a0 [ 1018.230450][ T434] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 1018.235463][ T434] ? pids_css_alloc+0x4e/0x120 [ 1018.240198][ T434] pids_css_alloc+0x4e/0x120 [ 1018.244764][ T434] cgroup_apply_control_enable+0x320/0x1230 [ 1018.250649][ T434] cgroup_apply_control+0x93/0x730 [ 1018.255751][ T434] ? css_next_child+0x180/0x180 [ 1018.260586][ T434] ? io_schedule+0x120/0x120 [ 1018.265148][ T434] ? kernfs_fop_write_iter+0x15e/0x410 [ 1018.270582][ T434] ? __kasan_check_write+0x14/0x20 [ 1018.275667][ T434] ? cgroup_kn_lock_live+0x1b1/0x2f0 [ 1018.280932][ T434] cgroup_subtree_control_write+0xd87/0x1310 [ 1018.286887][ T434] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1018.292852][ T434] ? cgroup_subtree_control_show+0x1d0/0x1d0 [ 1018.298802][ T434] cgroup_file_write+0x28e/0x590 [ 1018.303713][ T434] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1018.308803][ T434] ? mutex_lock+0xa6/0x110 [ 1018.313189][ T434] ? mutex_trylock+0xb0/0xb0 [ 1018.317776][ T434] ? __kasan_check_write+0x14/0x20 [ 1018.322901][ T434] kernfs_fop_write_iter+0x2d0/0x410 [ 1018.328159][ T434] ? cgroup_seqfile_stop+0xc0/0xc0 [ 1018.333243][ T434] vfs_write+0xc02/0xf20 [ 1018.337457][ T434] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1018.342973][ T434] ? kernel_write+0x3c0/0x3c0 [ 1018.347618][ T434] ? do_sys_openat2+0x397/0x470 [ 1018.352451][ T434] ? vmacache_update+0xb7/0x120 [ 1018.357287][ T434] ? __kasan_check_read+0x11/0x20 [ 1018.362282][ T434] ? __fdget_pos+0x27a/0x300 [ 1018.366846][ T434] ksys_write+0x186/0x2b0 [ 1018.371156][ T434] ? __ia32_sys_read+0x90/0x90 [ 1018.375893][ T434] ? debug_smp_processor_id+0x1c/0x20 [ 1018.381235][ T434] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 1018.387272][ T434] __x64_sys_write+0x7b/0x90 [ 1018.391835][ T434] do_syscall_64+0x31/0x70 [ 1018.396221][ T434] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1018.402082][ T434] RIP: 0033:0x7f695884ccf9 [ 1018.406470][ T434] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 1018.426056][ T434] RSP: 002b:00007ffd60389ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1018.434455][ T434] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f695884ccf9 [ 1018.442401][ T434] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 1018.450346][ T434] RBP: 00007ffd60389eb0 R08: 0000000000000002 R09: 0000000000003833 [ 1018.458401][ T434] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 1018.466344][ T434] R13: 00007ffd60389f10 R14: 00007ffd60389f50 R15: 0000000000000005 [ 1018.477158][ T376] ------------[ cut here ]------------ [ 1018.482684][ T376] WARNING: CPU: 0 PID: 376 at fs/namespace.c:1168 mntput_no_expire+0xb56/0xc10 [ 1018.491614][ T376] Modules linked in: [ 1018.495495][ T376] CPU: 0 PID: 376 Comm: syz-executor157 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1018.507127][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1018.517213][ T376] RIP: 0010:mntput_no_expire+0xb56/0xc10 [ 1018.522841][ T376] Code: b0 f3 b5 ff 4c 89 e7 e8 d8 13 01 00 e9 cb f5 ff ff e8 9e f3 b5 ff e9 9a fa ff ff e8 94 f3 b5 ff e9 ae f9 ff ff e8 8a f3 b5 ff <0f> 0b e9 e2 f7 ff ff e8 7e f3 b5 ff e9 98 f9 ff ff 48 c7 c1 98 8e [ 1018.542457][ T376] RSP: 0018:ffffc90000bd7b80 EFLAGS: 00010293 [ 1018.548506][ T376] RAX: ffffffff81b707d6 RBX: 00000000fffffffe RCX: ffff888106588000 [ 1018.556488][ T376] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000ffffffff [ 1018.564477][ T376] RBP: ffffc90000bd7c70 R08: ffffffff81b6ffb2 R09: 0000000000000003 [ 1018.572456][ T376] R10: fffff5200017af61 R11: 0000000000000004 R12: ffff88810e60c700 [ 1018.580420][ T376] R13: 1ffff9200017af7c R14: ffffc90000bd7c00 R15: dffffc0000000000 [ 1018.588368][ T376] FS: 0000555555ad83c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 1018.597311][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1018.603890][ T376] CR2: 0000555555ae26f8 CR3: 000000011ca0a000 CR4: 00000000003506b0 [ 1018.611871][ T376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1018.619856][ T376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1018.627807][ T376] Call Trace: [ 1018.631984][ T376] ? slab_free_freelist_hook+0xcc/0x1a0 [ 1018.637521][ T376] ? up_write+0xd0/0xd0 [ 1018.641673][ T376] ? io_schedule+0x120/0x120 [ 1018.646242][ T376] ? vfs_submount+0xb0/0xb0 [ 1018.650747][ T376] namespace_unlock+0x448/0x4f0 [ 1018.656015][ T376] ? umount_tree+0xf50/0xf50 [ 1018.660602][ T376] ? __detach_mounts+0x650/0x650 [ 1018.665521][ T376] ? selinux_umount+0xf0/0x130 [ 1018.670277][ T376] ? security_sb_umount+0x9d/0xb0 [ 1018.675278][ T376] path_umount+0xebd/0xf70 [ 1018.679691][ T376] ? namespace_unlock+0x4f0/0x4f0 [ 1018.684710][ T376] ? user_path_at_empty+0x40/0x50 [ 1018.689752][ T376] __x64_sys_umount+0x122/0x170 [ 1018.694584][ T376] ? path_umount+0xf70/0xf70 [ 1018.699257][ T376] ? debug_smp_processor_id+0x1c/0x20 [ 1018.704617][ T376] ? exit_to_user_mode_prepare+0x3b/0xe0 [ 1018.710284][ T376] do_syscall_64+0x31/0x70 [ 1018.714690][ T376] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1018.720580][ T376] RIP: 0033:0x7f695884e0a7 [ 1018.724975][ T376] Code: 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 1018.744604][ T376] RSP: 002b:00007ffd60388de8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 1018.753159][ T376] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f695884e0a7 [ 1018.761130][ T376] RDX: 00007ffd60388ea9 RSI: 000000000000000a RDI: 00007ffd60388ea0 [ 1018.769125][ T376] RBP: 00007ffd60388ea0 R08: 00000000ffffffff R09: 00007ffd60388c80 [ 1018.777083][ T376] R10: 0000555555ada763 R11: 0000000000000206 R12: 00007ffd60389f10 [ 1018.785049][ T376] R13: 0000555555ada6c0 R14: 00007ffd60388e10 R15: 0000000000000006 [ 1018.793022][ T376] ---[ end trace 2c8d7c89d484fe89 ]--- [ 1018.799627][ T376] ------------[ cut here ]------------ [ 1018.805151][ T376] WARNING: CPU: 0 PID: 376 at fs/namespace.c:1168 mntput_no_expire+0xb56/0xc10 [ 1018.808997][ C1] list_add corruption. prev->next should be next (ffff8881f715c060), but was ffff88810e794870. (prev=ffff88810e794870). [ 1018.814176][ T376] Modules linked in: [ 1018.826594][ C1] ------------[ cut here ]------------ [ 1018.826600][ C1] kernel BUG at lib/list_debug.c:28! [ 1018.826615][ C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 1018.826627][ C1] CPU: 1 PID: 397 Comm: kworker/1:2 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0 [ 1018.826632][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1018.826646][ C1] Workqueue: cgroup_destroy css_free_rwork_fn [ 1018.826662][ C1] RIP: 0010:__list_add_valid+0xbb/0xc0 [ 1018.826671][ C1] Code: 48 c7 c7 e0 c3 49 85 4c 89 e6 4c 89 f1 31 c0 e8 e2 9b 01 ff 0f 0b 48 c7 c7 a0 c4 49 85 4c 89 f6 4c 89 e1 31 c0 e8 cc 9b 01 ff <0f> 0b 0f 1f 00 55 48 89 e5 41 57 41 56 41 54 53 49 89 fe 49 bc 00 [ 1018.826677][ C1] RSP: 0018:ffffc900001609e0 EFLAGS: 00010046 [ 1018.826687][ C1] RAX: 0000000000000075 RBX: ffff8881f715c068 RCX: af2b18e851678f00 [ 1018.826692][ C1] RDX: 0000000080000102 RSI: 0000000080000102 RDI: 0000000000000000 [ 1018.826699][ C1] RBP: ffffc90000160a08 R08: ffffffff815454d8 R09: 0000000000000003 [ 1018.826707][ C1] R10: fffff5200002c091 R11: 0000000000000004 R12: ffff88810e794870 [ 1018.826714][ C1] R13: dffffc0000000000 R14: ffff8881f715c060 R15: ffff88810e794870 [ 1018.826722][ C1] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 1018.826729][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1018.826736][ C1] CR2: 0000555555ad8380 CR3: 000000011d102000 CR4: 00000000003506a0 [ 1018.826745][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1018.826751][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1018.826754][ C1] Call Trace: [ 1018.826758][ C1] [ 1018.826768][ C1] insert_work+0x107/0x330 [ 1018.826775][ C1] __queue_work+0x951/0xda0 [ 1018.826784][ C1] queue_work_on+0xef/0x150 [ 1018.826793][ C1] ? wq_worker_last_func+0x50/0x50 [ 1018.826803][ C1] ? __alloc_reserved_percpu+0x30/0x30 [ 1018.826811][ C1] css_release+0xae/0xc0 [ 1018.826823][ C1] percpu_ref_switch_to_atomic_rcu+0x5a0/0x5b0 [ 1018.826831][ C1] ? percpu_ref_noop_confirm_switch+0x10/0x10 [ 1018.826841][ C1] rcu_do_batch+0x4cd/0xb40 [ 1018.826851][ C1] ? trigger_load_balance+0x94/0xa0 [ 1018.826861][ C1] ? local_bh_enable+0x20/0x20 [ 1018.826872][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 1018.826882][ C1] rcu_core+0x822/0x10a0 [ 1018.826900][ C1] ? rcu_cpu_kthread_park+0x90/0x90 [ 1018.826911][ C1] ? kvm_sched_clock_read+0x19/0x40 [ 1018.826920][ C1] ? sched_clock+0x3a/0x40 [ 1018.826929][ C1] ? sched_clock_cpu+0x1b/0x3c0 [ 1018.826939][ C1] rcu_core_si+0x9/0x10 [ 1018.826948][ C1] __do_softirq+0x27e/0x598 [ 1018.826959][ C1] asm_call_irq_on_stack+0xf/0x20 [ 1018.826962][ C1] [ 1018.826971][ C1] do_softirq_own_stack+0x60/0x80 [ 1018.826981][ C1] __local_bh_enable_ip+0x158/0x170 [ 1018.826990][ C1] ? _local_bh_enable+0x30/0x30 [ 1018.827001][ C1] ? radix_tree_delete_item+0x251/0x340 [ 1018.827010][ C1] _raw_spin_unlock_bh+0x51/0x60 [ 1018.827018][ C1] css_free_rwork_fn+0x106/0x680 [ 1018.827029][ C1] process_one_work+0x6b4/0xfb0 [ 1018.827039][ C1] worker_thread+0xb15/0x1600 [ 1018.827050][ C1] ? __kasan_check_read+0x11/0x20 [ 1018.827059][ C1] kthread+0x371/0x390 [ 1018.827068][ C1] ? process_one_work+0xfb0/0xfb0 [ 1018.827075][ C1] ? kthread_blkcg+0xd0/0xd0 [ 1018.827085][ C1] ret_from_fork+0x1f/0x30 [ 1018.827090][ C1] Modules linked in: [ 1018.827099][ C1] ---[ end trace 2c8d7c89d484fe8a ]--- [ 1018.827110][ C1] RIP: 0010:__list_add_valid+0xbb/0xc0 [ 1018.827119][ C1] Code: 48 c7 c7 e0 c3 49 85 4c 89 e6 4c 89 f1 31 c0 e8 e2 9b 01 ff 0f 0b 48 c7 c7 a0 c4 49 85 4c 89 f6 4c 89 e1 31 c0 e8 cc 9b 01 ff <0f> 0b 0f 1f 00 55 48 89 e5 41 57 41 56 41 54 53 49 89 fe 49 bc 00 [ 1018.827125][ C1] RSP: 0018:ffffc900001609e0 EFLAGS: 00010046 [ 1018.827135][ C1] RAX: 0000000000000075 RBX: ffff8881f715c068 RCX: af2b18e851678f00 [ 1018.827141][ C1] RDX: 0000000080000102 RSI: 0000000080000102 RDI: 0000000000000000 [ 1018.827148][ C1] RBP: ffffc90000160a08 R08: ffffffff815454d8 R09: 0000000000000003 [ 1018.827155][ C1] R10: fffff5200002c091 R11: 0000000000000004 R12: ffff88810e794870 [ 1018.827162][ C1] R13: dffffc0000000000 R14: ffff8881f715c060 R15: ffff88810e794870 [ 1018.827170][ C1] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 1018.827178][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1018.827184][ C1] CR2: 0000555555ad8380 CR3: 000000011d102000 CR4: 00000000003506a0 [ 1018.827193][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1018.827199][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1018.827205][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 1018.827365][ C1] Kernel Offset: disabled [ 1019.285264][ C1] Rebooting in 86400 seconds..