[ 50.502032][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.517409][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 50.525759][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 50.534139][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 50.542464][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 50.555681][ T381] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 50.981716][ T7] device bridge_slave_1 left promiscuous mode [ 50.987979][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.995837][ T7] device bridge_slave_0 left promiscuous mode [ 51.002707][ T7] bridge0: port 1(bridge_slave_0) entered disabled state Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts. [ 69.891257][ T22] kauditd_printk_skb: 66 callbacks suppressed [ 69.891261][ T22] audit: type=1400 audit(1648692679.100:149): avc: denied { mounton } for pid=413 comm="syz-executor101" path="/syzcgroup/unified" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=dir permissive=1 [ 69.891814][ T413] cgroup: Unknown subsys name 'net' [ 69.926856][ T413] cgroup: Unknown subsys name 'devices' [ 69.932889][ T413] cgroup: Unknown subsys name 'hugetlb' [ 69.938626][ T413] cgroup: Unknown subsys name 'rlimit' [ 69.944656][ T22] audit: type=1400 audit(1648692679.150:150): avc: denied { mounton } for pid=413 comm="syz-executor101" 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 [ 69.977679][ T22] audit: type=1400 audit(1648692679.150:151): avc: denied { mount } for pid=413 comm="syz-executor101" 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 [ 70.025342][ T22] audit: type=1400 audit(1648692679.160:152): avc: denied { mounton } for pid=420 comm="syz-executor101" 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 [ 70.030847][ T421] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.049437][ T22] audit: type=1400 audit(1648692679.160:153): avc: denied { module_request } for pid=420 comm="syz-executor101" kmod="netdev-nr5" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 70.056712][ T421] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.085807][ T421] device bridge_slave_0 entered promiscuous mode [ 70.121412][ T421] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.128490][ T421] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.135677][ T421] device bridge_slave_1 entered promiscuous mode [ 70.166071][ T422] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.173105][ T422] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.180358][ T422] device bridge_slave_0 entered promiscuous mode [ 70.190046][ T420] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.197068][ T420] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.204423][ T420] device bridge_slave_0 entered promiscuous mode [ 70.213120][ T420] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.220317][ T420] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.227613][ T420] device bridge_slave_1 entered promiscuous mode [ 70.240675][ T422] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.247849][ T422] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.255780][ T422] device bridge_slave_1 entered promiscuous mode [ 70.264918][ T423] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.272166][ T423] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.279484][ T423] device bridge_slave_0 entered promiscuous mode [ 70.294107][ T424] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.301168][ T424] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.308599][ T424] device bridge_slave_0 entered promiscuous mode [ 70.317537][ T425] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.324823][ T425] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.332299][ T425] device bridge_slave_0 entered promiscuous mode [ 70.348497][ T423] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.355529][ T423] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.363121][ T423] device bridge_slave_1 entered promiscuous mode [ 70.374775][ T424] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.382066][ T424] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.389510][ T424] device bridge_slave_1 entered promiscuous mode [ 70.395975][ T425] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.403115][ T425] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.410471][ T425] device bridge_slave_1 entered promiscuous mode [ 70.505269][ T423] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.512402][ T423] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.520154][ T423] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.527171][ T423] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.540552][ T421] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.547618][ T421] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.555053][ T421] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.562206][ T421] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.574781][ T422] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.581831][ T422] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.589072][ T422] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.596181][ T422] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.607513][ T420] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.614687][ T420] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.621982][ T420] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.629016][ T420] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.658526][ T18] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.665749][ T18] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.673087][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.680787][ T18] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.688115][ T18] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.695254][ T18] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.703127][ T18] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.710554][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.718924][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.727905][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.735784][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.757810][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.766061][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.773633][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.781468][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.789858][ T385] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.796873][ T385] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.804697][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.812890][ T385] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.819919][ T385] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.854656][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.863025][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.872430][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.881629][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.889840][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.902128][ T22] audit: type=1400 audit(1648692680.110:154): avc: denied { mount } for pid=423 comm="syz-executor101" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 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 [ 70.931107][ T22] audit: type=1400 audit(1648692680.130:155): avc: denied { mounton } for pid=445 comm="syz-executor101" path="/root/syzkaller.tycmuy/0/file0" dev="sda1" ino=1153 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 70.931199][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.964407][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.973389][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.981767][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.989691][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 70.997687][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.006078][ T18] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.013722][ T18] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.021171][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.029268][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.037113][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.045236][ T18] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.052355][ T18] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.068661][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.093922][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.102932][ T385] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.109992][ T385] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.118478][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.126639][ T385] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.133661][ T385] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.141025][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.149122][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.156968][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.165156][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.173020][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.180498][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.187924][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.196084][ T385] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.204371][ T385] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.211395][ T385] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.219011][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.239316][ T448] FAULT_INJECTION: forcing a failure. [ 71.239316][ T448] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 71.254018][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.254541][ T448] CPU: 1 PID: 448 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 71.262382][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.270565][ T448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.270567][ T448] Call Trace: [ 71.270582][ T448] dump_stack+0x84/0xad [ 71.270586][ T448] should_fail.cold+0x5/0x1f [ 71.270594][ T448] ? __this_cpu_preempt_check+0x13/0x20 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 71.270602][ T448] should_fail_alloc_page+0x74/0x90 [ 71.270607][ T448] __alloc_pages_nodemask+0x132/0x5d0 [ 71.270611][ T448] ? __this_cpu_preempt_check+0x13/0x20 [ 71.270615][ T448] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 71.270619][ T448] ? page_add_file_rmap+0x2ee/0x510 [ 71.270624][ T448] wp_page_copy+0x168/0x15c0 [ 71.270629][ T448] ? filemap_map_pages+0x577/0xbc0 [ 71.270633][ T448] ? add_mm_counter_fast+0x1f0/0x1f0 [ 71.270636][ T448] ? __pte_alloc_kernel+0x100/0x100 [ 71.270639][ T448] ? __kasan_check_write+0x14/0x20 [ 71.270642][ T448] do_wp_page+0x1d5/0x1160 [ 71.270646][ T448] handle_mm_fault+0x1d24/0x3030 [ 71.270652][ T448] ? rcu_cpu_kthread+0x630/0x630 [ 71.270656][ T448] ? copy_page_range+0x2820/0x2820 [ 71.270663][ T448] do_user_addr_fault+0x282/0x7e0 [ 71.270667][ T448] exc_page_fault+0x62/0xc0 [ 71.270671][ T448] ? asm_exc_page_fault+0x8/0x30 [ 71.270674][ T448] asm_exc_page_fault+0x1e/0x30 [ 71.270678][ T448] RIP: 0033:0x7fabe7ea6f88 [ 71.270686][ T448] Code: 62 fe ff 64 48 8b 1c 25 10 00 00 00 48 39 1d e7 73 0a 00 74 23 64 8b 04 25 18 00 00 00 85 c0 0f 85 69 02 00 00 ba 01 00 00 00 <0f> b1 15 c1 73 0a 00 48 89 1d c2 73 0a 00 8b 05 b8 73 0a 00 48 8b [ 71.270689][ T448] RSP: 002b:00007ffc76d31260 EFLAGS: 00010246 [ 71.270695][ T448] RAX: 0000000000000000 RBX: 00005555573b23c0 RCX: 0000000000000001 [ 71.270698][ T448] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 [ 71.270701][ T448] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000003833 [ 71.270703][ T448] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fabe7f4b3f0 [ 71.270706][ T448] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 71.271296][ T448] Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF [ 71.279717][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.290015][ T449] FAULT_INJECTION: forcing a failure. [ 71.290015][ T449] name fail_usercopy, interval 1, probability 0, space 0, times 1 [ 71.293239][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.296721][ T449] CPU: 1 PID: 449 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 71.301547][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.306576][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.312228][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.320110][ T449] Call Trace: [ 71.320126][ T449] dump_stack+0x84/0xad [ 71.320130][ T449] should_fail.cold+0x5/0x1f [ 71.320139][ T449] should_fail_usercopy+0x15/0x20 [ 71.320145][ T449] copyin+0x17/0x60 [ 71.320149][ T449] copy_page_from_iter+0x183/0x730 [ 71.320158][ T449] pipe_write+0x863/0x1a10 [ 71.320163][ T449] ? avc_has_perm_noaudit+0x210/0x210 [ 71.320170][ T449] ? page_add_file_rmap+0x500/0x510 [ 71.320174][ T449] ? anon_pipe_buf_try_steal+0x140/0x140 [ 71.320177][ T449] ? inode_has_perm+0x142/0x220 [ 71.320181][ T449] ? file_has_perm+0x24c/0x360 [ 71.320189][ T449] new_sync_write+0x49b/0x6e0 [ 71.320192][ T449] ? new_sync_read+0x6e0/0x6e0 [ 71.320201][ T449] ? rw_verify_area+0xc3/0x2b0 [ 71.325961][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.332440][ T449] vfs_write+0x4f5/0x750 [ 71.332443][ T449] ksys_write+0x192/0x210 [ 71.332447][ T449] ? __ia32_sys_read+0xa0/0xa0 [ 71.332456][ T449] ? debug_smp_processor_id+0x17/0x20 [ 71.332463][ T449] ? fpregs_assert_state_consistent+0x49/0xb0 [ 71.332467][ T449] __x64_sys_write+0x6e/0xb0 [ 71.332471][ T449] ? exc_page_fault+0x6e/0xc0 [ 71.332475][ T449] do_syscall_64+0x32/0x80 [ 71.332481][ T449] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.332485][ T449] RIP: 0033:0x7fabe7e91e53 [ 71.332493][ T449] 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 [ 71.332495][ T449] RSP: 002b:00007ffc76d311e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 71.332500][ T449] RAX: ffffffffffffffda RBX: 0000000000000059 RCX: 00007fabe7e91e53 [ 71.332503][ T449] RDX: 0000000000000059 RSI: 00005555573b36b0 RDI: 0000000000000001 [ 71.332506][ T449] RBP: 00005555573b36b0 R08: 0000000000000000 R09: 0000000000003833 [ 71.332508][ T449] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000059 [ 71.332510][ T449] R13: 00007fabe7f49380 R14: 0000000000000059 R15: 00007fabe7f4b1c0 [ 71.738120][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.746301][ T386] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.753368][ T386] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.760778][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.769076][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.777129][ T386] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.784163][ T386] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.786956][ T22] audit: type=1400 audit(1648692681.000:156): avc: denied { append } for pid=141 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 [ 71.791629][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.813679][ T22] audit: type=1400 audit(1648692681.000:157): avc: denied { open } for pid=141 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 71.822448][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 71.844319][ T22] audit: type=1400 audit(1648692681.000:158): avc: denied { getattr } for pid=141 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 71.852387][ T386] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.875693][ T451] FAULT_INJECTION: forcing a failure. [ 71.875693][ T451] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 71.881805][ T386] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.882360][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.896151][ T451] CPU: 1 PID: 451 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 71.902886][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.910278][ T451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.910282][ T451] Call Trace: [ 71.910296][ T451] dump_stack+0x84/0xad [ 71.910300][ T451] should_fail.cold+0x5/0x1f [ 71.910310][ T451] should_fail_alloc_page+0x74/0x90 [ 71.910314][ T451] __alloc_pages_nodemask+0x132/0x5d0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 71.910321][ T451] ? __this_cpu_preempt_check+0x13/0x20 [ 71.910327][ T451] ? __mod_memcg_lruvec_state+0x117/0x380 [ 71.910331][ T451] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 71.910336][ T451] ? unlock_page_memcg+0x96/0x120 [ 71.910339][ T451] ? page_remove_rmap+0x99/0xbf0 [ 71.910349][ T451] wp_page_copy+0x168/0x15c0 [ 71.919636][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.926511][ T451] ? add_mm_counter_fast+0x1f0/0x1f0 [ 71.926516][ T451] ? __pte_alloc_kernel+0x100/0x100 [ 71.926523][ T451] ? __kasan_check_write+0x14/0x20 [ 71.937116][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.939826][ T451] do_wp_page+0x1d5/0x1160 [ 71.939833][ T451] handle_mm_fault+0x1d24/0x3030 [ 71.939846][ T451] ? rcu_cpu_kthread+0x630/0x630 [ 71.939850][ T451] ? copy_page_range+0x2820/0x2820 [ 71.939858][ T451] do_user_addr_fault+0x282/0x7e0 [ 71.939867][ T451] exc_page_fault+0x62/0xc0 [ 71.939871][ T451] ? asm_exc_page_fault+0x8/0x30 [ 71.939873][ T451] asm_exc_page_fault+0x1e/0x30 [ 71.939878][ T451] RIP: 0033:0x7fabe7e8e598 [ 71.939889][ T451] Code: 00 00 80 3d 89 ce 0b 00 00 75 2f 55 48 83 3d a6 a9 0b 00 00 48 89 e5 74 0c 48 8b 3d ba ab 0b 00 e8 e5 ec ff ff e8 68 ff ff ff 05 61 ce 0b 00 01 5d c3 0f 1f 80 00 00 00 00 c3 0f 1f 80 00 00 [ 71.944779][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.948669][ T451] RSP: 002b:00007ffc76d31310 EFLAGS: 00010246 [ 71.948677][ T451] RAX: 00007fabe7f4ab70 RBX: 0000000000000001 RCX: 0000000000000001 [ 71.948679][ T451] RDX: 00007fabe7e93550 RSI: 0000000000000000 RDI: 00007fabe7f4ab70 [ 71.948681][ T451] RBP: 00007ffc76d31310 R08: 0000000000000000 R09: 0000000000003833 [ 71.948683][ T451] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 71.948685][ T451] R13: 0000000000000001 R14: 00007fabe7f4df20 R15: 0000000000000001 [ 71.949518][ T451] Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF [ 71.954538][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.155056][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.163168][ T386] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.168425][ T452] FAULT_INJECTION: forcing a failure. [ 72.168425][ T452] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 72.184137][ T452] CPU: 1 PID: 452 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 72.192619][ T452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.198722][ T453] FAULT_INJECTION: forcing a failure. [ 72.198722][ T453] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 72.202746][ T452] Call Trace: [ 72.202760][ T452] dump_stack+0x84/0xad [ 72.202769][ T452] should_fail.cold+0x5/0x1f [ 72.227908][ T452] should_fail_usercopy+0x15/0x20 [ 72.232912][ T452] copyin+0x17/0x60 [ 72.236697][ T452] copy_page_from_iter+0x183/0x730 [ 72.241784][ T452] pipe_write+0x863/0x1a10 [ 72.246168][ T452] ? avc_has_perm_noaudit+0x210/0x210 [ 72.251517][ T452] ? page_add_file_rmap+0x500/0x510 [ 72.256780][ T452] ? anon_pipe_buf_try_steal+0x140/0x140 [ 72.262381][ T452] ? inode_has_perm+0x142/0x220 [ 72.268090][ T452] ? file_has_perm+0x24c/0x360 [ 72.272827][ T452] new_sync_write+0x49b/0x6e0 [ 72.277480][ T452] ? new_sync_read+0x6e0/0x6e0 [ 72.282239][ T452] ? rw_verify_area+0xc3/0x2b0 [ 72.286979][ T452] vfs_write+0x4f5/0x750 [ 72.291192][ T452] ksys_write+0x192/0x210 [ 72.295489][ T452] ? __ia32_sys_read+0xa0/0xa0 [ 72.300229][ T452] ? debug_smp_processor_id+0x17/0x20 [ 72.305584][ T452] ? fpregs_assert_state_consistent+0x49/0xb0 [ 72.311649][ T452] __x64_sys_write+0x6e/0xb0 [ 72.316231][ T452] ? exc_page_fault+0x6e/0xc0 [ 72.320881][ T452] do_syscall_64+0x32/0x80 [ 72.325402][ T452] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 72.331297][ T452] RIP: 0033:0x7fabe7e91e53 [ 72.335687][ T452] 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 [ 72.355448][ T452] RSP: 002b:00007ffc76d311e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 72.363827][ T452] RAX: ffffffffffffffda RBX: 0000000000000059 RCX: 00007fabe7e91e53 [ 72.371770][ T452] RDX: 0000000000000059 RSI: 00005555573b36b0 RDI: 0000000000000001 [ 72.379725][ T452] RBP: 00005555573b36b0 R08: 0000000000000000 R09: 0000000000003833 [ 72.387666][ T452] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000059 [ 72.395606][ T452] R13: 00007fabe7f49380 R14: 0000000000000059 R15: 00007fabe7f4b1c0 [ 72.403558][ T453] CPU: 0 PID: 453 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 72.412048][ T453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.422275][ T453] Call Trace: [ 72.425561][ T453] dump_stack+0x84/0xad [ 72.429798][ T453] should_fail.cold+0x5/0x1f [ 72.434423][ T453] should_fail_alloc_page+0x74/0x90 [ 72.439626][ T453] __alloc_pages_nodemask+0x132/0x5d0 [ 72.445000][ T453] ? __this_cpu_preempt_check+0x13/0x20 [ 72.450555][ T453] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 72.457484][ T453] ? lock_page_memcg+0xa1/0x1f0 [ 72.462566][ T453] ? page_add_file_rmap+0x2ee/0x510 [ 72.467840][ T453] wp_page_copy+0x168/0x15c0 [ 72.472401][ T453] ? filemap_map_pages+0x577/0xbc0 [ 72.477482][ T453] ? add_mm_counter_fast+0x1f0/0x1f0 [ 72.482791][ T453] ? __pte_alloc_kernel+0x100/0x100 [ 72.488146][ T453] ? __kasan_check_write+0x14/0x20 [ 72.493325][ T453] do_wp_page+0x1d5/0x1160 [ 72.497825][ T453] handle_mm_fault+0x1d24/0x3030 [ 72.502838][ T453] ? sysvec_apic_timer_interrupt+0x4a/0xe0 [ 72.508621][ T453] ? copy_page_range+0x2820/0x2820 [ 72.513740][ T453] do_user_addr_fault+0x282/0x7e0 [ 72.518736][ T453] exc_page_fault+0x62/0xc0 [ 72.523201][ T453] ? asm_exc_page_fault+0x8/0x30 [ 72.528106][ T453] asm_exc_page_fault+0x1e/0x30 [ 72.532917][ T453] RIP: 0033:0x7fabe7ea6f88 [ 72.537295][ T453] Code: 62 fe ff 64 48 8b 1c 25 10 00 00 00 48 39 1d e7 73 0a 00 74 23 64 8b 04 25 18 00 00 00 85 c0 0f 85 69 02 00 00 ba 01 00 00 00 <0f> b1 15 c1 73 0a 00 48 89 1d c2 73 0a 00 8b 05 b8 73 0a 00 48 8b [ 72.556879][ T453] RSP: 002b:00007ffc76d31260 EFLAGS: 00010246 [ 72.562931][ T453] RAX: 0000000000000000 RBX: 00005555573b23c0 RCX: 0000000000000001 [ 72.570880][ T453] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 [ 72.579531][ T453] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000003833 [ 72.587473][ T453] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fabe7f4b3f0 [ 72.595413][ T453] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 72.605250][ T453] Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF [ 72.610252][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.622032][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.631139][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.640219][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.648175][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.648816][ T455] FAULT_INJECTION: forcing a failure. [ 72.648816][ T455] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 72.656296][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.670205][ T455] CPU: 1 PID: 455 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 72.678342][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.685954][ T455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.685958][ T455] Call Trace: [ 72.685973][ T455] dump_stack+0x84/0xad write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 72.685981][ T455] should_fail.cold+0x5/0x1f [ 72.694404][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.704145][ T455] ? create_prof_cpu_mask+0x20/0x20 [ 72.704155][ T455] should_fail_alloc_page+0x74/0x90 [ 72.704158][ T455] __alloc_pages_nodemask+0x132/0x5d0 [ 72.704163][ T455] ? kasan_save_stack+0x42/0x50 [ 72.704165][ T455] ? kasan_save_stack+0x23/0x50 [ 72.704169][ T455] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 72.704172][ T455] ? exit_to_user_mode_prepare+0xd9/0xe0 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 72.704179][ T455] ? syscall_exit_to_user_mode+0x27/0x160 [ 72.704182][ T455] ? do_syscall_64+0x3f/0x80 [ 72.704187][ T455] ? kasan_slab_free+0xe/0x10 [ 72.704192][ T455] ? slab_free_freelist_hook+0x77/0x160 [ 72.704198][ T455] wp_page_copy+0x168/0x15c0 [ 72.704204][ T455] ? cgroup_file_poll+0xd0/0xd0 [ 72.704209][ T455] ? __mutex_lock_slowpath+0x10/0x10 [ 72.704214][ T455] ? add_mm_counter_fast+0x1f0/0x1f0 [ 72.704217][ T455] ? __pte_alloc_kernel+0x100/0x100 [ 72.704220][ T455] ? __kasan_check_write+0x14/0x20 [ 72.704223][ T455] do_wp_page+0x1d5/0x1160 [ 72.704228][ T455] handle_mm_fault+0x1d24/0x3030 [ 72.704233][ T455] ? rcu_cpu_kthread+0x630/0x630 [ 72.704236][ T455] ? copy_page_range+0x2820/0x2820 [ 72.704243][ T455] do_user_addr_fault+0x282/0x7e0 [ 72.704247][ T455] exc_page_fault+0x62/0xc0 [ 72.704250][ T455] ? asm_exc_page_fault+0x8/0x30 [ 72.704253][ T455] asm_exc_page_fault+0x1e/0x30 [ 72.704257][ T455] RIP: 0033:0x7fabe7e98d05 [ 72.704267][ T455] Code: 0b 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 fc 51 0b 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 72.708016][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.711639][ T455] RSP: 002b:00007ffc76d31340 EFLAGS: 00010246 [ 72.711646][ T455] RAX: 0000000000000000 RBX: 00007fabe7f49168 RCX: 0000000000000001 [ 72.711648][ T455] RDX: 0000000000000001 RSI: 00007fabe7f49168 RDI: 0000000000000000 [ 72.711650][ T455] RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000003833 [ 72.711653][ T455] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 72.711658][ T455] R13: 0000000000000001 R14: 00007ffc76d31400 R15: 0000000000000006 [ 72.716452][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.724890][ T455] Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF [ 72.730029][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.748577][ T454] FAULT_INJECTION: forcing a failure. [ 72.748577][ T454] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 72.750822][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.758685][ T454] CPU: 1 PID: 454 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 72.764778][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.768581][ T454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.768584][ T454] Call Trace: [ 72.768600][ T454] dump_stack+0x84/0xad [ 72.768604][ T454] should_fail.cold+0x5/0x1f [ 72.768613][ T454] should_fail_alloc_page+0x74/0x90 [ 72.768617][ T454] __alloc_pages_nodemask+0x132/0x5d0 [ 72.768625][ T454] ? __this_cpu_preempt_check+0x13/0x20 [ 72.768633][ T454] ? __mod_memcg_lruvec_state+0x117/0x380 [ 72.768638][ T454] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 72.768642][ T454] ? unlock_page_memcg+0x96/0x120 [ 72.768645][ T454] ? page_remove_rmap+0x99/0xbf0 [ 72.768651][ T454] wp_page_copy+0x168/0x15c0 [ 72.768654][ T454] ? add_mm_counter_fast+0x1f0/0x1f0 [ 72.768658][ T454] ? __pte_alloc_kernel+0x100/0x100 [ 72.768662][ T454] ? __kasan_check_write+0x14/0x20 [ 72.768666][ T454] do_wp_page+0x1d5/0x1160 [ 72.768671][ T454] handle_mm_fault+0x1d24/0x3030 [ 72.768678][ T454] ? rcu_cpu_kthread+0x630/0x630 [ 72.768683][ T454] ? copy_page_range+0x2820/0x2820 [ 72.768691][ T454] do_user_addr_fault+0x282/0x7e0 [ 72.768696][ T454] exc_page_fault+0x62/0xc0 [ 72.768700][ T454] ? asm_exc_page_fault+0x8/0x30 [ 72.768703][ T454] asm_exc_page_fault+0x1e/0x30 [ 72.768707][ T454] RIP: 0033:0x7fabe7e8e598 [ 72.768713][ T454] Code: 00 00 80 3d 89 ce 0b 00 00 75 2f 55 48 83 3d a6 a9 0b 00 00 48 89 e5 74 0c 48 8b 3d ba ab 0b 00 e8 e5 ec ff ff e8 68 ff ff ff 05 61 ce 0b 00 01 5d c3 0f 1f 80 00 00 00 00 c3 0f 1f 80 00 00 [ 72.768715][ T454] RSP: 002b:00007ffc76d31310 EFLAGS: 00010246 [ 72.768721][ T454] RAX: 00007fabe7f4ab70 RBX: 0000000000000001 RCX: 0000000000000001 [ 72.768724][ T454] RDX: 00007fabe7e93550 RSI: 0000000000000000 RDI: 00007fabe7f4ab70 [ 72.768727][ T454] RBP: 00007ffc76d31310 R08: 0000000000000000 R09: 0000000000003833 [ 72.768730][ T454] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 72.768732][ T454] R13: 0000000000000001 R14: 00007fabe7f4df20 R15: 0000000000000001 [ 72.769879][ T454] Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF [ 72.773589][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.200842][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.209201][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.217445][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.225326][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.233138][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.241442][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.251717][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.259840][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.268485][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.276851][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.285323][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.293470][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.301558][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.309738][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.317643][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.326230][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.335043][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.343324][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.351822][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 73.360116][ T73] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.370171][ T456] FAULT_INJECTION: forcing a failure. [ 73.370171][ T456] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 73.384442][ T456] CPU: 0 PID: 456 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 73.392933][ T456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.403062][ T456] Call Trace: [ 73.406347][ T456] dump_stack+0x84/0xad [ 73.410476][ T456] should_fail.cold+0x5/0x1f [ 73.415070][ T456] ? __this_cpu_preempt_check+0x13/0x20 [ 73.420802][ T456] should_fail_alloc_page+0x74/0x90 [ 73.425991][ T456] __alloc_pages_nodemask+0x132/0x5d0 [ 73.431355][ T456] ? __this_cpu_preempt_check+0x13/0x20 [ 73.437063][ T456] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 73.443811][ T456] ? page_add_file_rmap+0x2ee/0x510 [ 73.448997][ T456] wp_page_copy+0x168/0x15c0 [ 73.453573][ T456] ? filemap_map_pages+0x577/0xbc0 [ 73.458772][ T456] ? add_mm_counter_fast+0x1f0/0x1f0 [ 73.464230][ T456] ? __pte_alloc_kernel+0x100/0x100 [ 73.469416][ T456] ? __kasan_check_write+0x14/0x20 [ 73.474514][ T456] do_wp_page+0x1d5/0x1160 [ 73.479024][ T456] handle_mm_fault+0x1d24/0x3030 [ 73.484150][ T456] ? rcu_cpu_kthread+0x630/0x630 [ 73.489450][ T456] ? copy_page_range+0x2820/0x2820 [ 73.494531][ T456] do_user_addr_fault+0x282/0x7e0 [ 73.499638][ T456] exc_page_fault+0x62/0xc0 [ 73.504139][ T456] ? asm_exc_page_fault+0x8/0x30 [ 73.509114][ T456] asm_exc_page_fault+0x1e/0x30 [ 73.513961][ T456] RIP: 0033:0x7fabe7ea6f88 [ 73.518373][ T456] Code: 62 fe ff 64 48 8b 1c 25 10 00 00 00 48 39 1d e7 73 0a 00 74 23 64 8b 04 25 18 00 00 00 85 c0 0f 85 69 02 00 00 ba 01 00 00 00 <0f> b1 15 c1 73 0a 00 48 89 1d c2 73 0a 00 8b 05 b8 73 0a 00 48 8b [ 73.537981][ T456] RSP: 002b:00007ffc76d31260 EFLAGS: 00010246 [ 73.544046][ T456] RAX: 0000000000000000 RBX: 00005555573b23c0 RCX: 0000000000000001 [ 73.552085][ T456] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 73.560123][ T456] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000003833 [ 73.568333][ T456] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fabe7f4b3f0 [ 73.576302][ T456] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 73.584994][ T456] Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF [ 73.598651][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.607462][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.616179][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.625406][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.635019][ T459] FAULT_INJECTION: forcing a failure. [ 73.635019][ T459] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 73.656448][ T459] CPU: 1 PID: 459 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 73.665488][ T459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.676377][ T459] Call Trace: [ 73.679687][ T459] dump_stack+0x84/0xad [ 73.683831][ T459] should_fail.cold+0x5/0x1f [ 73.688529][ T459] should_fail_alloc_page+0x74/0x90 [ 73.693720][ T459] __alloc_pages_nodemask+0x132/0x5d0 [ 73.699396][ T459] ? __this_cpu_preempt_check+0x13/0x20 [ 73.705361][ T459] ? __mod_memcg_lruvec_state+0x117/0x380 [ 73.711081][ T459] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 73.718219][ T459] ? unlock_page_memcg+0x96/0x120 [ 73.723347][ T459] ? page_remove_rmap+0x99/0xbf0 [ 73.728469][ T459] wp_page_copy+0x168/0x15c0 [ 73.733056][ T459] ? add_mm_counter_fast+0x1f0/0x1f0 [ 73.738352][ T459] ? __pte_alloc_kernel+0x100/0x100 [ 73.744603][ T459] ? __kasan_check_write+0x14/0x20 [ 73.749827][ T459] do_wp_page+0x1d5/0x1160 [ 73.754449][ T459] handle_mm_fault+0x1d24/0x3030 [ 73.759573][ T459] ? rcu_cpu_kthread+0x630/0x630 [ 73.764502][ T459] ? copy_page_range+0x2820/0x2820 [ 73.769723][ T459] do_user_addr_fault+0x282/0x7e0 [ 73.774846][ T459] exc_page_fault+0x62/0xc0 [ 73.779450][ T459] ? asm_exc_page_fault+0x8/0x30 [ 73.784703][ T459] asm_exc_page_fault+0x1e/0x30 [ 73.789839][ T459] RIP: 0033:0x7fabe7e8e598 [ 73.795653][ T459] Code: 00 00 80 3d 89 ce 0b 00 00 75 2f 55 48 83 3d a6 a9 0b 00 00 48 89 e5 74 0c 48 8b 3d ba ab 0b 00 e8 e5 ec ff ff e8 68 ff ff ff 05 61 ce 0b 00 01 5d c3 0f 1f 80 00 00 00 00 c3 0f 1f 80 00 00 [ 73.815967][ T459] RSP: 002b:00007ffc76d31310 EFLAGS: 00010246 [ 73.822106][ T459] RAX: 00007fabe7f4ab70 RBX: 0000000000000001 RCX: 0000000000000001 [ 73.830472][ T459] RDX: 00007fabe7e93550 RSI: 0000000000000000 RDI: 00007fabe7f4ab70 [ 73.838553][ T459] RBP: 00007ffc76d31310 R08: 0000000000000000 R09: 0000000000003833 [ 73.846708][ T459] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 73.855107][ T459] R13: 0000000000000001 R14: 00007fabe7f4df20 R15: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 73.869700][ T459] Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF [ 73.886065][ T461] FAULT_INJECTION: forcing a failure. [ 73.886065][ T461] name failslab, interval 1, probability 0, space 0, times 1 [ 73.899697][ T461] CPU: 0 PID: 461 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 73.909916][ T461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.920644][ T461] Call Trace: [ 73.924605][ T461] dump_stack+0x84/0xad [ 73.928755][ T461] should_fail.cold+0x5/0x1f [ 73.934019][ T461] ? __kernfs_new_node+0xe5/0x680 [ 73.940041][ T461] __should_failslab+0xd8/0x120 [ 73.965554][ T461] should_failslab+0x9/0x20 [ 73.970129][ T461] kmem_cache_alloc+0x2d/0x4e0 [ 73.975396][ T461] __kernfs_new_node+0xe5/0x680 [ 73.980335][ T461] ? kernfs_dop_revalidate+0x370/0x370 [ 73.985784][ T461] ? kasan_save_stack+0x42/0x50 [ 73.990866][ T461] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 73.997064][ T461] ? kasan_kmalloc+0x9/0x10 [ 74.001642][ T461] ? snprintf+0x9e/0xd0 [ 74.006261][ T461] ? vsprintf+0x20/0x20 [ 74.010778][ T461] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.017093][ T461] ? do_syscall_64+0x32/0x80 [ 74.021764][ T461] kernfs_new_node+0x79/0x110 [ 74.026632][ T461] ? __kasan_check_write+0x14/0x20 [ 74.032580][ T461] __kernfs_create_file+0x24/0x270 [ 74.037691][ T461] cgroup_addrm_files+0x2e2/0x830 [ 74.042888][ T461] ? cgroup_show_path+0x3d0/0x3d0 [ 74.048397][ T461] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 74.053859][ T461] ? __radix_tree_replace+0xd0/0x250 [ 74.059126][ T461] ? idr_replace+0x138/0x150 [ 74.063777][ T461] ? idr_get_next+0x130/0x130 [ 74.068600][ T461] css_populate_dir+0x17a/0x400 [ 74.073672][ T461] cgroup_apply_control_enable+0x39c/0xf10 [ 74.079917][ T461] cgroup_subtree_control_write+0x6d3/0xd60 [ 74.085946][ T461] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 74.092009][ T461] ? kfree+0xc2/0x560 [ 74.095969][ T461] ? __kasan_slab_free+0x129/0x170 [ 74.101075][ T461] cgroup_file_write+0x272/0x7c0 [ 74.106468][ T461] ? __kasan_check_write+0x14/0x20 [ 74.111890][ T461] ? cgroup_file_poll+0xd0/0xd0 [ 74.116725][ T461] ? __mutex_lock_slowpath+0x10/0x10 [ 74.122081][ T461] ? cgroup_file_poll+0xd0/0xd0 [ 74.126905][ T461] kernfs_fop_write_iter+0x2d5/0x450 [ 74.132160][ T461] new_sync_write+0x358/0x6e0 [ 74.136816][ T461] ? new_sync_read+0x6e0/0x6e0 [ 74.142010][ T461] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 74.148746][ T461] ? rw_verify_area+0xc3/0x2b0 [ 74.153573][ T461] vfs_write+0x4f5/0x750 [ 74.157792][ T461] ksys_write+0x111/0x210 [ 74.162196][ T461] ? __ia32_sys_read+0xa0/0xa0 [ 74.167035][ T461] ? debug_smp_processor_id+0x17/0x20 [ 74.172382][ T461] ? fpregs_assert_state_consistent+0x49/0xb0 [ 74.178425][ T461] __x64_sys_write+0x6e/0xb0 [ 74.183073][ T461] ? syscall_exit_to_user_mode+0x27/0x160 [ 74.189120][ T461] do_syscall_64+0x32/0x80 [ 74.193600][ T461] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.199555][ T461] RIP: 0033:0x7fabe7ed7ce9 [ 74.204054][ T461] 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 [ 74.224070][ T461] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 74.232455][ T461] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 74.240489][ T461] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 74.248450][ T461] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 74.256753][ T461] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 74.265151][ T461] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000000 [ 74.275176][ T461] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 74.318240][ T460] FAULT_INJECTION: forcing a failure. [ 74.318240][ T460] name failslab, interval 1, probability 0, space 0, times 0 [ 74.331102][ T460] CPU: 0 PID: 460 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 74.339581][ T460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.349704][ T460] Call Trace: [ 74.352984][ T460] dump_stack+0x84/0xad [ 74.357113][ T460] should_fail.cold+0x5/0x1f [ 74.361684][ T460] ? find_next_bit+0x14/0x20 [ 74.366272][ T460] ? cgroup_exit_cftypes+0x150/0x150 [ 74.371544][ T460] ? percpu_ref_init+0xd1/0x380 [ 74.376476][ T460] __should_failslab+0xd8/0x120 [ 74.381396][ T460] should_failslab+0x9/0x20 [ 74.385969][ T460] kmem_cache_alloc_trace+0x3d/0x330 [ 74.391266][ T460] ? cgroup_exit_cftypes+0x150/0x150 [ 74.397484][ T460] percpu_ref_init+0xd1/0x380 [ 74.402135][ T460] cgroup_apply_control_enable+0x486/0xf10 [ 74.408016][ T460] cgroup_subtree_control_write+0x6d3/0xd60 [ 74.414283][ T460] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 74.420750][ T460] ? kfree+0xc2/0x560 [ 74.424799][ T460] ? __kasan_slab_free+0x129/0x170 [ 74.430497][ T460] cgroup_file_write+0x272/0x7c0 [ 74.435847][ T460] ? __kasan_check_write+0x14/0x20 [ 74.440964][ T460] ? cgroup_file_poll+0xd0/0xd0 [ 74.445799][ T460] ? __mutex_lock_slowpath+0x10/0x10 [ 74.451207][ T460] ? cgroup_file_poll+0xd0/0xd0 [ 74.456819][ T460] kernfs_fop_write_iter+0x2d5/0x450 [ 74.462258][ T460] new_sync_write+0x358/0x6e0 [ 74.467703][ T460] ? new_sync_read+0x6e0/0x6e0 [ 74.472542][ T460] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 74.479393][ T460] ? rw_verify_area+0xc3/0x2b0 [ 74.484680][ T460] vfs_write+0x4f5/0x750 [ 74.489112][ T460] ksys_write+0x111/0x210 [ 74.493525][ T460] ? __ia32_sys_read+0xa0/0xa0 [ 74.498367][ T460] ? debug_smp_processor_id+0x17/0x20 [ 74.504010][ T460] ? fpregs_assert_state_consistent+0x49/0xb0 [ 74.510056][ T460] __x64_sys_write+0x6e/0xb0 [ 74.514624][ T460] ? syscall_exit_to_user_mode+0x27/0x160 [ 74.520412][ T460] do_syscall_64+0x32/0x80 [ 74.524953][ T460] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.530934][ T460] RIP: 0033:0x7fabe7ed7ce9 [ 74.535324][ T460] 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 [ 74.555000][ T460] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 74.563384][ T460] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 74.571333][ T460] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 74.579291][ T460] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 74.587410][ T460] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 74.595446][ T460] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000008 [ 74.638549][ T462] FAULT_INJECTION: forcing a failure. [ 74.638549][ T462] name failslab, interval 1, probability 0, space 0, times 0 [ 74.651285][ T462] CPU: 1 PID: 462 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 74.659770][ T462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.670011][ T462] Call Trace: [ 74.673309][ T462] dump_stack+0x84/0xad [ 74.677715][ T462] should_fail.cold+0x5/0x1f [ 74.682936][ T462] __should_failslab+0xd8/0x120 [ 74.687768][ T462] should_failslab+0x9/0x20 [ 74.692455][ T462] __kmalloc_track_caller+0x5c/0x360 [ 74.697745][ T462] ? __kernfs_new_node+0xaa/0x680 [ 74.702751][ T462] kstrdup_const+0x45/0x70 [ 74.707377][ T462] __kernfs_new_node+0xaa/0x680 [ 74.712304][ T462] ? kernfs_dop_revalidate+0x370/0x370 [ 74.717992][ T462] ? kasan_save_stack+0x42/0x50 [ 74.722836][ T462] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 74.728624][ T462] ? kasan_kmalloc+0x9/0x10 [ 74.733232][ T462] ? snprintf+0x9e/0xd0 [ 74.737469][ T462] ? vsprintf+0x20/0x20 [ 74.741626][ T462] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.747678][ T462] ? do_syscall_64+0x32/0x80 [ 74.752340][ T462] kernfs_new_node+0x79/0x110 [ 74.757078][ T462] ? __kasan_check_write+0x14/0x20 [ 74.762740][ T462] __kernfs_create_file+0x24/0x270 [ 74.767844][ T462] cgroup_addrm_files+0x2e2/0x830 [ 74.772845][ T462] ? cgroup_show_path+0x3d0/0x3d0 [ 74.777974][ T462] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 74.783355][ T462] ? __radix_tree_replace+0xd0/0x250 [ 74.788803][ T462] ? idr_replace+0x138/0x150 [ 74.793367][ T462] ? idr_get_next+0x130/0x130 [ 74.798021][ T462] css_populate_dir+0x17a/0x400 [ 74.803000][ T462] cgroup_apply_control_enable+0x39c/0xf10 [ 74.808870][ T462] cgroup_subtree_control_write+0x6d3/0xd60 [ 74.814825][ T462] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 74.820883][ T462] ? kfree+0xc2/0x560 [ 74.824839][ T462] ? __kasan_slab_free+0x129/0x170 [ 74.830028][ T462] cgroup_file_write+0x272/0x7c0 [ 74.835238][ T462] ? __kasan_check_write+0x14/0x20 [ 74.840502][ T462] ? cgroup_file_poll+0xd0/0xd0 [ 74.845525][ T462] ? __mutex_lock_slowpath+0x10/0x10 [ 74.850790][ T462] ? cgroup_file_poll+0xd0/0xd0 [ 74.855736][ T462] kernfs_fop_write_iter+0x2d5/0x450 [ 74.860994][ T462] new_sync_write+0x358/0x6e0 [ 74.865641][ T462] ? new_sync_read+0x6e0/0x6e0 [ 74.870382][ T462] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 74.877119][ T462] ? rw_verify_area+0xc3/0x2b0 [ 74.881856][ T462] vfs_write+0x4f5/0x750 [ 74.886128][ T462] ksys_write+0x111/0x210 [ 74.890429][ T462] ? __ia32_sys_read+0xa0/0xa0 [ 74.895237][ T462] ? debug_smp_processor_id+0x17/0x20 [ 74.900584][ T462] ? fpregs_assert_state_consistent+0x49/0xb0 [ 74.906648][ T462] __x64_sys_write+0x6e/0xb0 [ 74.911332][ T462] ? syscall_exit_to_user_mode+0x27/0x160 [ 74.917055][ T462] do_syscall_64+0x32/0x80 [ 74.921455][ T462] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.927345][ T462] RIP: 0033:0x7fabe7ed7ce9 [ 74.931828][ T462] 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 [ 74.951410][ T462] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 74.959996][ T462] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 74.968070][ T462] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 74.976116][ T462] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 74.984171][ T462] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 74.992120][ T462] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000000 [ 75.003118][ T462] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 75.028601][ T467] FAULT_INJECTION: forcing a failure. [ 75.028601][ T467] name failslab, interval 1, probability 0, space 0, times 0 [ 75.041474][ T467] CPU: 1 PID: 467 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 75.050274][ T467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.060659][ T467] Call Trace: [ 75.063929][ T467] dump_stack+0x84/0xad [ 75.068066][ T467] should_fail.cold+0x5/0x1f [ 75.072634][ T467] __should_failslab+0xd8/0x120 [ 75.077451][ T467] should_failslab+0x9/0x20 [ 75.082022][ T467] __kmalloc_track_caller+0x5c/0x360 [ 75.087288][ T467] ? __kernfs_new_node+0xaa/0x680 [ 75.092303][ T467] kstrdup_const+0x45/0x70 [ 75.096721][ T467] __kernfs_new_node+0xaa/0x680 [ 75.101730][ T467] ? kernfs_dop_revalidate+0x370/0x370 [ 75.107161][ T467] ? kasan_save_stack+0x42/0x50 [ 75.111984][ T467] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 75.117944][ T467] ? kasan_kmalloc+0x9/0x10 [ 75.122423][ T467] ? snprintf+0x9e/0xd0 [ 75.126618][ T467] ? vsprintf+0x20/0x20 [ 75.130869][ T467] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 75.136921][ T467] ? do_syscall_64+0x32/0x80 [ 75.141488][ T467] kernfs_new_node+0x79/0x110 [ 75.147554][ T467] ? __kasan_check_write+0x14/0x20 [ 75.152641][ T467] __kernfs_create_file+0x24/0x270 [ 75.157739][ T467] cgroup_addrm_files+0x2e2/0x830 [ 75.162915][ T467] ? cgroup_show_path+0x3d0/0x3d0 [ 75.168207][ T467] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 75.173553][ T467] ? __radix_tree_replace+0xd0/0x250 [ 75.178815][ T467] ? idr_replace+0x138/0x150 [ 75.183423][ T467] ? idr_get_next+0x130/0x130 [ 75.188250][ T467] css_populate_dir+0x17a/0x400 [ 75.193282][ T467] cgroup_apply_control_enable+0x39c/0xf10 [ 75.199072][ T467] cgroup_subtree_control_write+0x6d3/0xd60 [ 75.204961][ T467] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 75.211093][ T467] ? kfree+0xc2/0x560 [ 75.215231][ T467] ? __kasan_slab_free+0x129/0x170 [ 75.220507][ T467] cgroup_file_write+0x272/0x7c0 [ 75.225416][ T467] ? __kasan_check_write+0x14/0x20 [ 75.230743][ T467] ? cgroup_file_poll+0xd0/0xd0 [ 75.235626][ T467] ? __mutex_lock_slowpath+0x10/0x10 [ 75.240991][ T467] ? cgroup_file_poll+0xd0/0xd0 [ 75.245814][ T467] kernfs_fop_write_iter+0x2d5/0x450 [ 75.251083][ T467] new_sync_write+0x358/0x6e0 [ 75.255871][ T467] ? new_sync_read+0x6e0/0x6e0 [ 75.260844][ T467] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 75.267682][ T467] ? rw_verify_area+0xc3/0x2b0 [ 75.272470][ T467] vfs_write+0x4f5/0x750 [ 75.276791][ T467] ksys_write+0x111/0x210 [ 75.281195][ T467] ? __ia32_sys_read+0xa0/0xa0 [ 75.286136][ T467] ? debug_smp_processor_id+0x17/0x20 [ 75.291604][ T467] ? fpregs_assert_state_consistent+0x49/0xb0 [ 75.298220][ T467] __x64_sys_write+0x6e/0xb0 [ 75.302886][ T467] ? syscall_exit_to_user_mode+0x27/0x160 [ 75.308767][ T467] do_syscall_64+0x32/0x80 [ 75.313345][ T467] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 75.319218][ T467] RIP: 0033:0x7fabe7ed7ce9 [ 75.323616][ T467] 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 [ 75.343312][ T467] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 75.351698][ T467] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 75.359646][ T467] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 75.367855][ T467] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 75.375905][ T467] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 75.383853][ T467] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000009 [ 75.395425][ T467] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 75.403882][ T423] ------------[ cut here ]------------ [ 75.409466][ T423] WARNING: CPU: 0 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 75.418526][ T423] Modules linked in: [ 75.422404][ T423] CPU: 0 PID: 423 Comm: syz-executor101 Not tainted 5.10.105-syzkaller #0 [ 75.431219][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.441306][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 75.447365][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 75.467013][ T423] RSP: 0018:ffffc900007a7c28 EFLAGS: 00010286 [ 75.473208][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4f8c RCX: 0000000000000002 [ 75.481315][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 75.489300][ T423] RBP: ffffc900007a7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 75.497428][ T423] R10: fffff520000f4f78 R11: 0000000000000000 R12: ffffc900007a7c80 [ 75.505432][ T423] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810b5d8300 [ 75.513405][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 75.522338][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.528927][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506b0 [ 75.537433][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.545704][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.553887][ T423] Call Trace: [ 75.557172][ T423] ? clone_private_mount+0x300/0x300 [ 75.562462][ T423] ? change_mnt_propagation+0x5df/0xd40 [ 75.568097][ T423] namespace_unlock+0x331/0x3e0 [ 75.573056][ T423] ? kern_unmount+0xb0/0xb0 [ 75.577541][ T423] ? unhash_mnt+0x3b0/0x3b0 [ 75.582075][ T423] path_umount+0x665/0x1170 [ 75.586576][ T423] ? __detach_mounts+0x210/0x210 [ 75.591713][ T423] ? user_path_at_empty+0xa2/0xf0 [ 75.596759][ T423] __x64_sys_umount+0xfb/0x120 [ 75.601535][ T423] ? path_umount+0x1170/0x1170 [ 75.606293][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 75.612375][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 75.618008][ T423] do_syscall_64+0x32/0x80 [ 75.622397][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 75.628285][ T423] RIP: 0033:0x7fabe7ed9097 [ 75.632709][ T423] 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 [ 75.652349][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 75.660865][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 75.669064][ T423] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 75.677015][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 75.684991][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 75.693051][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000a [ 75.701205][ T423] ---[ end trace a21a7dc9bb3febdd ]--- [ 75.706727][ T423] ------------[ cut here ]------------ [ 75.712245][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 75.721314][ T423] Modules linked in: [ 75.725192][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 75.735077][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.745175][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 75.750822][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 75.770522][ T423] RSP: 0018:ffffc900007a7cf0 EFLAGS: 00010282 [ 75.776570][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4fa5 RCX: 0000000000000002 [ 75.784650][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 75.792619][ T423] RBP: ffffc900007a7db0 R08: 0000000000000000 R09: 0000000000000008 [ 75.800707][ T423] R10: fffff520000f4f91 R11: 0000000000000000 R12: ffffc900007a7d48 [ 75.808800][ T423] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810b5d8300 [ 75.816747][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 75.825677][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.832256][ T423] CR2: 00007fabe7f4e350 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 75.840309][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.848299][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.856331][ T423] Call Trace: [ 75.859682][ T423] ? namespace_unlock+0x331/0x3e0 [ 75.864685][ T423] ? clone_private_mount+0x300/0x300 [ 75.869973][ T423] ? dput+0xac/0x8a0 [ 75.873886][ T423] path_umount+0x6a3/0x1170 [ 75.878387][ T423] ? __detach_mounts+0x210/0x210 [ 75.883307][ T423] ? user_path_at_empty+0xa2/0xf0 [ 75.888310][ T423] __x64_sys_umount+0xfb/0x120 [ 75.893189][ T423] ? path_umount+0x1170/0x1170 [ 75.898494][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 75.904727][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 75.910343][ T423] do_syscall_64+0x32/0x80 [ 75.914734][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 75.920629][ T423] RIP: 0033:0x7fabe7ed9097 [ 75.925020][ T423] 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 [ 75.944614][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 75.953009][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 75.960964][ T423] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 75.969125][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 75.977242][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 75.985631][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000a [ 75.993594][ T423] ---[ end trace a21a7dc9bb3febde ]--- [ 75.999721][ T464] FAULT_INJECTION: forcing a failure. [ 75.999721][ T464] name failslab, interval 1, probability 0, space 0, times 0 [ 76.012753][ T464] CPU: 0 PID: 464 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 76.022850][ T464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.033042][ T464] Call Trace: [ 76.036318][ T464] dump_stack+0x84/0xad [ 76.040472][ T464] should_fail.cold+0x5/0x1f [ 76.045042][ T464] ? __kernfs_new_node+0xe5/0x680 [ 76.050062][ T464] __should_failslab+0xd8/0x120 [ 76.055007][ T464] should_failslab+0x9/0x20 [ 76.059492][ T464] kmem_cache_alloc+0x2d/0x4e0 [ 76.064463][ T464] __kernfs_new_node+0xe5/0x680 [ 76.069317][ T464] ? kernfs_dop_revalidate+0x370/0x370 [ 76.075150][ T464] ? kasan_save_stack+0x42/0x50 [ 76.080077][ T464] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 76.086404][ T464] ? kasan_kmalloc+0x9/0x10 [ 76.090881][ T464] ? snprintf+0x9e/0xd0 [ 76.096486][ T464] ? vsprintf+0x20/0x20 [ 76.100664][ T464] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 76.106703][ T464] ? do_syscall_64+0x32/0x80 [ 76.111288][ T464] kernfs_new_node+0x79/0x110 [ 76.116134][ T464] ? __kasan_check_write+0x14/0x20 [ 76.121214][ T464] __kernfs_create_file+0x24/0x270 [ 76.126295][ T464] cgroup_addrm_files+0x2e2/0x830 [ 76.131401][ T464] ? cgroup_show_path+0x3d0/0x3d0 [ 76.136499][ T464] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 76.141840][ T464] ? __radix_tree_replace+0xd0/0x250 [ 76.147092][ T464] ? idr_replace+0x138/0x150 [ 76.151656][ T464] ? idr_get_next+0x130/0x130 [ 76.156305][ T464] css_populate_dir+0x17a/0x400 [ 76.161410][ T464] cgroup_apply_control_enable+0x39c/0xf10 [ 76.167187][ T464] cgroup_subtree_control_write+0x6d3/0xd60 [ 76.173224][ T464] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 76.179293][ T464] ? kfree+0xc2/0x560 [ 76.183244][ T464] ? __kasan_slab_free+0x129/0x170 [ 76.188333][ T464] cgroup_file_write+0x272/0x7c0 [ 76.193246][ T464] ? __kasan_check_write+0x14/0x20 [ 76.198326][ T464] ? cgroup_file_poll+0xd0/0xd0 [ 76.203149][ T464] ? __mutex_lock_slowpath+0x10/0x10 [ 76.208781][ T464] ? cgroup_file_poll+0xd0/0xd0 [ 76.213604][ T464] kernfs_fop_write_iter+0x2d5/0x450 [ 76.218865][ T464] new_sync_write+0x358/0x6e0 [ 76.223529][ T464] ? new_sync_read+0x6e0/0x6e0 [ 76.228428][ T464] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 76.235571][ T464] ? rw_verify_area+0xc3/0x2b0 [ 76.240434][ T464] vfs_write+0x4f5/0x750 [ 76.244662][ T464] ksys_write+0x111/0x210 [ 76.248979][ T464] ? __ia32_sys_read+0xa0/0xa0 [ 76.253733][ T464] ? debug_smp_processor_id+0x17/0x20 [ 76.259253][ T464] ? fpregs_assert_state_consistent+0x49/0xb0 [ 76.265301][ T464] __x64_sys_write+0x6e/0xb0 [ 76.269867][ T464] ? syscall_exit_to_user_mode+0x27/0x160 [ 76.275557][ T464] do_syscall_64+0x32/0x80 [ 76.280083][ T464] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 76.286050][ T464] RIP: 0033:0x7fabe7ed7ce9 [ 76.290464][ T464] 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 [ 76.310059][ T464] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.318441][ T464] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 76.326671][ T464] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 76.334717][ T464] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 76.342693][ T464] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 76.350740][ T464] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000000 [ 76.359382][ T464] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 76.408407][ T466] FAULT_INJECTION: forcing a failure. [ 76.408407][ T466] name failslab, interval 1, probability 0, space 0, times 0 [ 76.421633][ T466] CPU: 1 PID: 466 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 76.432512][ T466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.442845][ T466] Call Trace: [ 76.446297][ T466] dump_stack+0x84/0xad [ 76.450527][ T466] should_fail.cold+0x5/0x1f [ 76.455092][ T466] __should_failslab+0xd8/0x120 [ 76.460143][ T466] should_failslab+0x9/0x20 [ 76.464655][ T466] __kmalloc_track_caller+0x5c/0x360 [ 76.470386][ T466] ? __kernfs_new_node+0xaa/0x680 [ 76.476035][ T466] kstrdup_const+0x45/0x70 [ 76.480433][ T466] __kernfs_new_node+0xaa/0x680 [ 76.485358][ T466] ? kernfs_dop_revalidate+0x370/0x370 [ 76.490989][ T466] ? kasan_save_stack+0x42/0x50 [ 76.495842][ T466] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 76.501619][ T466] ? kasan_kmalloc+0x9/0x10 [ 76.506119][ T466] ? snprintf+0x9e/0xd0 [ 76.510261][ T466] ? vsprintf+0x20/0x20 [ 76.514389][ T466] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 76.520470][ T466] ? do_syscall_64+0x32/0x80 [ 76.525063][ T466] kernfs_new_node+0x79/0x110 [ 76.529728][ T466] ? __kasan_check_write+0x14/0x20 [ 76.535278][ T466] __kernfs_create_file+0x24/0x270 [ 76.540477][ T466] cgroup_addrm_files+0x2e2/0x830 [ 76.545470][ T466] ? cgroup_show_path+0x3d0/0x3d0 [ 76.550493][ T466] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 76.555833][ T466] ? __radix_tree_replace+0xd0/0x250 [ 76.561089][ T466] ? idr_replace+0x138/0x150 [ 76.565651][ T466] css_populate_dir+0x17a/0x400 [ 76.570509][ T466] cgroup_apply_control_enable+0x39c/0xf10 [ 76.576380][ T466] cgroup_subtree_control_write+0x6d3/0xd60 [ 76.582484][ T466] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 76.588640][ T466] ? kfree+0xc2/0x560 [ 76.592596][ T466] ? __kasan_check_write+0x14/0x20 [ 76.598121][ T466] cgroup_file_write+0x272/0x7c0 [ 76.603122][ T466] ? __kasan_check_write+0x14/0x20 [ 76.608203][ T466] ? cgroup_file_poll+0xd0/0xd0 [ 76.613050][ T466] ? __mutex_lock_slowpath+0x10/0x10 [ 76.618399][ T466] ? cgroup_file_poll+0xd0/0xd0 [ 76.623222][ T466] kernfs_fop_write_iter+0x2d5/0x450 [ 76.628482][ T466] new_sync_write+0x358/0x6e0 [ 76.633138][ T466] ? new_sync_read+0x6e0/0x6e0 [ 76.637874][ T466] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 76.644620][ T466] ? rw_verify_area+0xc3/0x2b0 [ 76.649353][ T466] vfs_write+0x4f5/0x750 [ 76.653563][ T466] ksys_write+0x111/0x210 [ 76.657886][ T466] ? __ia32_sys_read+0xa0/0xa0 [ 76.662637][ T466] ? debug_smp_processor_id+0x17/0x20 [ 76.668132][ T466] ? fpregs_assert_state_consistent+0x49/0xb0 [ 76.674316][ T466] __x64_sys_write+0x6e/0xb0 [ 76.678891][ T466] ? syscall_exit_to_user_mode+0x27/0x160 [ 76.684703][ T466] do_syscall_64+0x32/0x80 [ 76.689530][ T466] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 76.695448][ T466] RIP: 0033:0x7fabe7ed7ce9 [ 76.700024][ T466] 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 [ 76.719614][ T466] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.728003][ T466] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 76.736286][ T466] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 76.744601][ T466] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 76.752566][ T466] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 76.760638][ T466] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000001 [ 76.771121][ T466] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 76.808352][ T471] FAULT_INJECTION: forcing a failure. [ 76.808352][ T471] name failslab, interval 1, probability 0, space 0, times 0 [ 76.821061][ T471] CPU: 1 PID: 471 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 76.830955][ T471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.841021][ T471] Call Trace: [ 76.844305][ T471] dump_stack+0x84/0xad [ 76.848447][ T471] should_fail.cold+0x5/0x1f [ 76.853007][ T471] ? find_next_bit+0x14/0x20 [ 76.857569][ T471] ? cgroup_exit_cftypes+0x150/0x150 [ 76.862822][ T471] ? percpu_ref_init+0xd1/0x380 [ 76.867667][ T471] __should_failslab+0xd8/0x120 [ 76.872667][ T471] should_failslab+0x9/0x20 [ 76.877143][ T471] kmem_cache_alloc_trace+0x3d/0x330 [ 76.882506][ T471] ? cgroup_exit_cftypes+0x150/0x150 [ 76.887768][ T471] percpu_ref_init+0xd1/0x380 [ 76.892418][ T471] cgroup_apply_control_enable+0x486/0xf10 [ 76.898219][ T471] cgroup_subtree_control_write+0x6d3/0xd60 [ 76.904099][ T471] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 76.910225][ T471] ? kfree+0xc2/0x560 [ 76.914176][ T471] ? __kasan_slab_free+0x129/0x170 [ 76.919281][ T471] cgroup_file_write+0x272/0x7c0 [ 76.924340][ T471] ? __kasan_check_write+0x14/0x20 [ 76.929610][ T471] ? cgroup_file_poll+0xd0/0xd0 [ 76.934457][ T471] ? __mutex_lock_slowpath+0x10/0x10 [ 76.939729][ T471] ? cgroup_file_poll+0xd0/0xd0 [ 76.944561][ T471] kernfs_fop_write_iter+0x2d5/0x450 [ 76.949828][ T471] new_sync_write+0x358/0x6e0 [ 76.954503][ T471] ? new_sync_read+0x6e0/0x6e0 [ 76.959516][ T471] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 76.966749][ T471] ? rw_verify_area+0xc3/0x2b0 [ 76.971605][ T471] vfs_write+0x4f5/0x750 [ 76.975821][ T471] ksys_write+0x111/0x210 [ 76.980119][ T471] ? __ia32_sys_read+0xa0/0xa0 [ 76.984876][ T471] ? debug_smp_processor_id+0x17/0x20 [ 76.990224][ T471] ? fpregs_assert_state_consistent+0x49/0xb0 [ 76.996352][ T471] __x64_sys_write+0x6e/0xb0 [ 77.000920][ T471] ? syscall_exit_to_user_mode+0x27/0x160 [ 77.006607][ T471] do_syscall_64+0x32/0x80 [ 77.011103][ T471] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 77.016972][ T471] RIP: 0033:0x7fabe7ed7ce9 [ 77.021536][ T471] 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 [ 77.041666][ T471] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 77.050156][ T471] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 77.058187][ T471] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 77.066225][ T471] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 77.074363][ T471] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 77.082434][ T471] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000002 [ 77.092109][ T22] audit: type=1400 audit(1648692686.310:159): avc: denied { remove_name } for pid=141 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 [ 77.114912][ T22] audit: type=1400 audit(1648692686.310:160): avc: denied { rename } for pid=141 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 [ 77.137240][ T22] audit: type=1400 audit(1648692686.310:161): avc: denied { create } for pid=141 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 77.168279][ T469] FAULT_INJECTION: forcing a failure. [ 77.168279][ T469] name failslab, interval 1, probability 0, space 0, times 0 [ 77.181002][ T469] CPU: 1 PID: 469 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 77.190889][ T469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.201103][ T469] Call Trace: [ 77.204383][ T469] dump_stack+0x84/0xad [ 77.208510][ T469] should_fail.cold+0x5/0x1f [ 77.213080][ T469] ? find_next_bit+0x14/0x20 [ 77.217651][ T469] ? cgroup_exit_cftypes+0x150/0x150 [ 77.222926][ T469] ? percpu_ref_init+0xd1/0x380 [ 77.227780][ T469] __should_failslab+0xd8/0x120 [ 77.232625][ T469] should_failslab+0x9/0x20 [ 77.237114][ T469] kmem_cache_alloc_trace+0x3d/0x330 [ 77.242400][ T469] ? cgroup_exit_cftypes+0x150/0x150 [ 77.247836][ T469] percpu_ref_init+0xd1/0x380 [ 77.252495][ T469] cgroup_apply_control_enable+0x486/0xf10 [ 77.258283][ T469] cgroup_subtree_control_write+0x6d3/0xd60 [ 77.264239][ T469] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 77.270366][ T469] ? kfree+0xc2/0x560 [ 77.274318][ T469] ? __kasan_slab_free+0x129/0x170 [ 77.279425][ T469] cgroup_file_write+0x272/0x7c0 [ 77.284427][ T469] ? __kasan_check_write+0x14/0x20 [ 77.289509][ T469] ? cgroup_file_poll+0xd0/0xd0 [ 77.294337][ T469] ? __mutex_lock_slowpath+0x10/0x10 [ 77.299608][ T469] ? cgroup_file_poll+0xd0/0xd0 [ 77.304435][ T469] kernfs_fop_write_iter+0x2d5/0x450 [ 77.309692][ T469] new_sync_write+0x358/0x6e0 [ 77.314339][ T469] ? new_sync_read+0x6e0/0x6e0 [ 77.319078][ T469] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 77.325909][ T469] ? rw_verify_area+0xc3/0x2b0 [ 77.330648][ T469] vfs_write+0x4f5/0x750 [ 77.334863][ T469] ksys_write+0x111/0x210 [ 77.339163][ T469] ? __ia32_sys_read+0xa0/0xa0 [ 77.344026][ T469] ? debug_smp_processor_id+0x17/0x20 [ 77.349370][ T469] ? fpregs_assert_state_consistent+0x49/0xb0 [ 77.355417][ T469] __x64_sys_write+0x6e/0xb0 [ 77.360074][ T469] ? syscall_exit_to_user_mode+0x27/0x160 [ 77.365840][ T469] do_syscall_64+0x32/0x80 [ 77.370234][ T469] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 77.376096][ T469] RIP: 0033:0x7fabe7ed7ce9 [ 77.380481][ T469] 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 [ 77.400606][ T469] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 77.409008][ T469] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 77.417054][ T469] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 77.425316][ T469] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 77.433461][ T469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 77.441575][ T469] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000a [ 77.488227][ T468] FAULT_INJECTION: forcing a failure. [ 77.488227][ T468] name failslab, interval 1, probability 0, space 0, times 0 [ 77.501210][ T468] CPU: 0 PID: 468 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 77.511159][ T468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.521200][ T468] Call Trace: [ 77.524491][ T468] dump_stack+0x84/0xad [ 77.528632][ T468] should_fail.cold+0x5/0x1f [ 77.533210][ T468] ? find_next_bit+0x14/0x20 [ 77.538199][ T468] ? cgroup_exit_cftypes+0x150/0x150 [ 77.543483][ T468] ? percpu_ref_init+0xd1/0x380 [ 77.548318][ T468] __should_failslab+0xd8/0x120 [ 77.553195][ T468] should_failslab+0x9/0x20 [ 77.557871][ T468] kmem_cache_alloc_trace+0x3d/0x330 [ 77.563142][ T468] ? cgroup_exit_cftypes+0x150/0x150 [ 77.568424][ T468] percpu_ref_init+0xd1/0x380 [ 77.573083][ T468] cgroup_apply_control_enable+0x486/0xf10 [ 77.579155][ T468] cgroup_subtree_control_write+0x6d3/0xd60 [ 77.585062][ T468] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 77.591124][ T468] ? kfree+0xc2/0x560 [ 77.595089][ T468] ? __kasan_slab_free+0x129/0x170 [ 77.600186][ T468] cgroup_file_write+0x272/0x7c0 [ 77.605099][ T468] ? __kasan_check_write+0x14/0x20 [ 77.610199][ T468] ? cgroup_file_poll+0xd0/0xd0 [ 77.615123][ T468] ? __mutex_lock_slowpath+0x10/0x10 [ 77.620854][ T468] ? cgroup_file_poll+0xd0/0xd0 [ 77.625804][ T468] kernfs_fop_write_iter+0x2d5/0x450 [ 77.631078][ T468] new_sync_write+0x358/0x6e0 [ 77.635870][ T468] ? new_sync_read+0x6e0/0x6e0 [ 77.640623][ T468] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 77.647601][ T468] ? rw_verify_area+0xc3/0x2b0 [ 77.652336][ T468] vfs_write+0x4f5/0x750 [ 77.656654][ T468] ksys_write+0x111/0x210 [ 77.660957][ T468] ? __ia32_sys_read+0xa0/0xa0 [ 77.665697][ T468] ? debug_smp_processor_id+0x17/0x20 [ 77.671044][ T468] ? fpregs_assert_state_consistent+0x49/0xb0 [ 77.677092][ T468] __x64_sys_write+0x6e/0xb0 [ 77.681656][ T468] ? syscall_exit_to_user_mode+0x27/0x160 [ 77.687363][ T468] do_syscall_64+0x32/0x80 [ 77.691846][ T468] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 77.697708][ T468] RIP: 0033:0x7fabe7ed7ce9 [ 77.702106][ T468] 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 [ 77.723442][ T468] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 77.731913][ T468] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 77.739973][ T468] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 77.748032][ T468] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 77.756066][ T468] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 77.764012][ T468] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000001 [ 77.828249][ T470] FAULT_INJECTION: forcing a failure. [ 77.828249][ T470] name failslab, interval 1, probability 0, space 0, times 0 [ 77.840892][ T470] CPU: 1 PID: 470 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 77.850930][ T470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.860965][ T470] Call Trace: [ 77.864235][ T470] dump_stack+0x84/0xad [ 77.868367][ T470] should_fail.cold+0x5/0x1f [ 77.872949][ T470] __should_failslab+0xd8/0x120 [ 77.877807][ T470] should_failslab+0x9/0x20 [ 77.882312][ T470] __kmalloc_track_caller+0x5c/0x360 [ 77.887686][ T470] ? __kernfs_new_node+0xaa/0x680 [ 77.892712][ T470] kstrdup_const+0x45/0x70 [ 77.897371][ T470] __kernfs_new_node+0xaa/0x680 [ 77.902215][ T470] ? kernfs_dop_revalidate+0x370/0x370 [ 77.907770][ T470] ? kasan_save_stack+0x42/0x50 [ 77.912610][ T470] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 77.918568][ T470] ? kasan_kmalloc+0x9/0x10 [ 77.923076][ T470] ? snprintf+0x9e/0xd0 [ 77.927203][ T470] ? vsprintf+0x20/0x20 [ 77.931342][ T470] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 77.937528][ T470] ? do_syscall_64+0x32/0x80 [ 77.942177][ T470] kernfs_new_node+0x79/0x110 [ 77.946825][ T470] ? __kasan_check_write+0x14/0x20 [ 77.951915][ T470] __kernfs_create_file+0x24/0x270 [ 77.957010][ T470] cgroup_addrm_files+0x2e2/0x830 [ 77.962020][ T470] ? cgroup_show_path+0x3d0/0x3d0 [ 77.967026][ T470] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 77.972368][ T470] ? __radix_tree_replace+0xd0/0x250 [ 77.977622][ T470] ? idr_replace+0x138/0x150 [ 77.982182][ T470] ? idr_get_next+0x130/0x130 [ 77.987264][ T470] css_populate_dir+0x17a/0x400 [ 77.992110][ T470] cgroup_apply_control_enable+0x39c/0xf10 [ 77.997909][ T470] cgroup_subtree_control_write+0x6d3/0xd60 [ 78.004014][ T470] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 78.010060][ T470] ? kfree+0xc2/0x560 [ 78.014268][ T470] ? __kasan_slab_free+0x129/0x170 [ 78.019359][ T470] cgroup_file_write+0x272/0x7c0 [ 78.024277][ T470] ? __kasan_check_write+0x14/0x20 [ 78.029380][ T470] ? cgroup_file_poll+0xd0/0xd0 [ 78.034284][ T470] ? __mutex_lock_slowpath+0x10/0x10 [ 78.039670][ T470] ? cgroup_file_poll+0xd0/0xd0 [ 78.044602][ T470] kernfs_fop_write_iter+0x2d5/0x450 [ 78.049897][ T470] new_sync_write+0x358/0x6e0 [ 78.054639][ T470] ? new_sync_read+0x6e0/0x6e0 [ 78.059388][ T470] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 78.066136][ T470] ? rw_verify_area+0xc3/0x2b0 [ 78.071010][ T470] vfs_write+0x4f5/0x750 [ 78.075543][ T470] ksys_write+0x111/0x210 [ 78.079859][ T470] ? __ia32_sys_read+0xa0/0xa0 [ 78.084612][ T470] ? debug_smp_processor_id+0x17/0x20 [ 78.090247][ T470] ? fpregs_assert_state_consistent+0x49/0xb0 [ 78.096295][ T470] __x64_sys_write+0x6e/0xb0 [ 78.100862][ T470] ? syscall_exit_to_user_mode+0x27/0x160 [ 78.106676][ T470] do_syscall_64+0x32/0x80 [ 78.111072][ T470] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 78.116934][ T470] RIP: 0033:0x7fabe7ed7ce9 [ 78.121323][ T470] 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 [ 78.140935][ T470] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.149319][ T470] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 78.157266][ T470] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 78.165248][ T470] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 78.173224][ T470] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 78.181184][ T470] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000001 [ 78.189625][ T470] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 78.228199][ T465] FAULT_INJECTION: forcing a failure. [ 78.228199][ T465] name failslab, interval 1, probability 0, space 0, times 0 [ 78.241169][ T465] CPU: 0 PID: 465 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 78.251180][ T465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.261331][ T465] Call Trace: [ 78.264605][ T465] dump_stack+0x84/0xad [ 78.268744][ T465] should_fail.cold+0x5/0x1f [ 78.275084][ T465] ? pids_css_alloc+0x3c/0x130 [ 78.279832][ T465] __should_failslab+0xd8/0x120 [ 78.284666][ T465] should_failslab+0x9/0x20 [ 78.289449][ T465] kmem_cache_alloc_trace+0x3d/0x330 [ 78.294713][ T465] pids_css_alloc+0x3c/0x130 [ 78.299300][ T465] cgroup_apply_control_enable+0x432/0xf10 [ 78.305292][ T465] cgroup_subtree_control_write+0x6d3/0xd60 [ 78.311161][ T465] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 78.317204][ T465] ? kfree+0xc2/0x560 [ 78.321157][ T465] ? __kasan_slab_free+0x129/0x170 [ 78.331109][ T465] cgroup_file_write+0x272/0x7c0 [ 78.336109][ T465] ? __kasan_check_write+0x14/0x20 [ 78.341223][ T465] ? cgroup_file_poll+0xd0/0xd0 [ 78.346089][ T465] ? __mutex_lock_slowpath+0x10/0x10 [ 78.351533][ T465] ? cgroup_file_poll+0xd0/0xd0 [ 78.356368][ T465] kernfs_fop_write_iter+0x2d5/0x450 [ 78.361721][ T465] new_sync_write+0x358/0x6e0 [ 78.366395][ T465] ? new_sync_read+0x6e0/0x6e0 [ 78.371142][ T465] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 78.378168][ T465] ? rw_verify_area+0xc3/0x2b0 [ 78.382998][ T465] vfs_write+0x4f5/0x750 [ 78.387314][ T465] ksys_write+0x111/0x210 [ 78.391653][ T465] ? __ia32_sys_read+0xa0/0xa0 [ 78.396439][ T465] ? debug_smp_processor_id+0x17/0x20 [ 78.401878][ T465] ? fpregs_assert_state_consistent+0x49/0xb0 [ 78.407962][ T465] __x64_sys_write+0x6e/0xb0 [ 78.412559][ T465] ? syscall_exit_to_user_mode+0x27/0x160 [ 78.418517][ T465] do_syscall_64+0x32/0x80 [ 78.422909][ T465] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 78.430030][ T465] RIP: 0033:0x7fabe7ed7ce9 [ 78.434444][ T465] 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 [ 78.454044][ T465] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.462436][ T465] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 78.470522][ T465] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 78.478611][ T465] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 78.486603][ T465] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 78.494642][ T465] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000000 [ 78.538263][ T463] FAULT_INJECTION: forcing a failure. [ 78.538263][ T463] name failslab, interval 1, probability 0, space 0, times 0 [ 78.551046][ T463] CPU: 1 PID: 463 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 78.560958][ T463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.571571][ T463] Call Trace: [ 78.574853][ T463] dump_stack+0x84/0xad [ 78.579423][ T463] should_fail.cold+0x5/0x1f [ 78.584008][ T463] ? pids_css_alloc+0x3c/0x130 [ 78.588905][ T463] __should_failslab+0xd8/0x120 [ 78.593952][ T463] should_failslab+0x9/0x20 [ 78.598471][ T463] kmem_cache_alloc_trace+0x3d/0x330 [ 78.603823][ T463] pids_css_alloc+0x3c/0x130 [ 78.608388][ T463] cgroup_apply_control_enable+0x432/0xf10 [ 78.614518][ T463] cgroup_subtree_control_write+0x6d3/0xd60 [ 78.620387][ T463] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 78.626429][ T463] ? kfree+0xc2/0x560 [ 78.630383][ T463] ? __kasan_slab_free+0x129/0x170 [ 78.635468][ T463] cgroup_file_write+0x272/0x7c0 [ 78.640473][ T463] ? __kasan_check_write+0x14/0x20 [ 78.645793][ T463] ? cgroup_file_poll+0xd0/0xd0 [ 78.650974][ T463] ? __mutex_lock_slowpath+0x10/0x10 [ 78.656242][ T463] ? cgroup_file_poll+0xd0/0xd0 [ 78.661179][ T463] kernfs_fop_write_iter+0x2d5/0x450 [ 78.666465][ T463] new_sync_write+0x358/0x6e0 [ 78.671131][ T463] ? new_sync_read+0x6e0/0x6e0 [ 78.675930][ T463] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 78.682926][ T463] ? rw_verify_area+0xc3/0x2b0 [ 78.687704][ T463] vfs_write+0x4f5/0x750 [ 78.691967][ T463] ksys_write+0x111/0x210 [ 78.696388][ T463] ? __ia32_sys_read+0xa0/0xa0 [ 78.701409][ T463] ? debug_smp_processor_id+0x17/0x20 [ 78.706776][ T463] ? fpregs_assert_state_consistent+0x49/0xb0 [ 78.712852][ T463] __x64_sys_write+0x6e/0xb0 [ 78.717437][ T463] ? syscall_exit_to_user_mode+0x27/0x160 [ 78.723132][ T463] do_syscall_64+0x32/0x80 [ 78.727521][ T463] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 78.733411][ T463] RIP: 0033:0x7fabe7ed7ce9 [ 78.738147][ T463] 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 [ 78.757910][ T463] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.766326][ T463] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 78.774275][ T463] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 78.782235][ T463] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 78.790276][ T463] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 78.798226][ T463] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000006 [ 78.838477][ T472] FAULT_INJECTION: forcing a failure. [ 78.838477][ T472] name failslab, interval 1, probability 0, space 0, times 0 [ 78.851382][ T472] CPU: 0 PID: 472 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 78.861680][ T472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.871719][ T472] Call Trace: [ 78.875071][ T472] dump_stack+0x84/0xad [ 78.879217][ T472] should_fail.cold+0x5/0x1f [ 78.883786][ T472] ? pids_css_alloc+0x3c/0x130 [ 78.888618][ T472] __should_failslab+0xd8/0x120 [ 78.893546][ T472] should_failslab+0x9/0x20 [ 78.898033][ T472] kmem_cache_alloc_trace+0x3d/0x330 [ 78.903288][ T472] pids_css_alloc+0x3c/0x130 [ 78.907850][ T472] cgroup_apply_control_enable+0x432/0xf10 [ 78.913639][ T472] cgroup_subtree_control_write+0x6d3/0xd60 [ 78.919589][ T472] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 78.925633][ T472] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 78.931434][ T472] cgroup_file_write+0x272/0x7c0 [ 78.936554][ T472] ? __kasan_check_write+0x14/0x20 [ 78.941637][ T472] ? cgroup_file_poll+0xd0/0xd0 [ 78.946466][ T472] ? __mutex_lock_slowpath+0x10/0x10 [ 78.951747][ T472] ? cgroup_file_poll+0xd0/0xd0 [ 78.956571][ T472] kernfs_fop_write_iter+0x2d5/0x450 [ 78.961831][ T472] new_sync_write+0x358/0x6e0 [ 78.966481][ T472] ? new_sync_read+0x6e0/0x6e0 [ 78.971303][ T472] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 78.978039][ T472] ? rw_verify_area+0xc3/0x2b0 [ 78.982956][ T472] vfs_write+0x4f5/0x750 [ 78.987194][ T472] ksys_write+0x111/0x210 [ 78.991666][ T472] ? __ia32_sys_read+0xa0/0xa0 [ 78.997026][ T472] ? debug_smp_processor_id+0x17/0x20 [ 79.002393][ T472] ? fpregs_assert_state_consistent+0x49/0xb0 [ 79.008429][ T472] __x64_sys_write+0x6e/0xb0 [ 79.013085][ T472] ? syscall_exit_to_user_mode+0x27/0x160 [ 79.018872][ T472] do_syscall_64+0x32/0x80 [ 79.023301][ T472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 79.029186][ T472] RIP: 0033:0x7fabe7ed7ce9 [ 79.033575][ T472] 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 [ 79.053237][ T472] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 79.061793][ T472] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 79.069744][ T472] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 79.077706][ T472] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 79.085652][ T472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 79.093698][ T472] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000003 [ 79.128198][ T474] FAULT_INJECTION: forcing a failure. [ 79.128198][ T474] name failslab, interval 1, probability 0, space 0, times 0 [ 79.140987][ T474] CPU: 0 PID: 474 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 79.151041][ T474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.161171][ T474] Call Trace: [ 79.164569][ T474] dump_stack+0x84/0xad [ 79.168710][ T474] should_fail.cold+0x5/0x1f [ 79.173449][ T474] ? find_next_bit+0x14/0x20 [ 79.178176][ T474] ? cgroup_exit_cftypes+0x150/0x150 [ 79.183439][ T474] ? percpu_ref_init+0xd1/0x380 [ 79.188266][ T474] __should_failslab+0xd8/0x120 [ 79.193183][ T474] should_failslab+0x9/0x20 [ 79.197662][ T474] kmem_cache_alloc_trace+0x3d/0x330 [ 79.202926][ T474] ? cgroup_exit_cftypes+0x150/0x150 [ 79.208328][ T474] percpu_ref_init+0xd1/0x380 [ 79.213026][ T474] cgroup_apply_control_enable+0x486/0xf10 [ 79.218992][ T474] cgroup_subtree_control_write+0x6d3/0xd60 [ 79.224867][ T474] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 79.230914][ T474] ? kfree+0xc2/0x560 [ 79.234874][ T474] ? __kasan_slab_free+0x129/0x170 [ 79.239983][ T474] cgroup_file_write+0x272/0x7c0 [ 79.244901][ T474] ? __kasan_check_write+0x14/0x20 [ 79.250003][ T474] ? cgroup_file_poll+0xd0/0xd0 [ 79.255261][ T474] ? __mutex_lock_slowpath+0x10/0x10 [ 79.260524][ T474] ? cgroup_file_poll+0xd0/0xd0 [ 79.265356][ T474] kernfs_fop_write_iter+0x2d5/0x450 [ 79.270625][ T474] new_sync_write+0x358/0x6e0 [ 79.275277][ T474] ? new_sync_read+0x6e0/0x6e0 [ 79.280022][ T474] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 79.286767][ T474] ? rw_verify_area+0xc3/0x2b0 [ 79.291519][ T474] vfs_write+0x4f5/0x750 [ 79.295875][ T474] ksys_write+0x111/0x210 [ 79.300192][ T474] ? __ia32_sys_read+0xa0/0xa0 [ 79.304957][ T474] ? debug_smp_processor_id+0x17/0x20 [ 79.310442][ T474] ? fpregs_assert_state_consistent+0x49/0xb0 [ 79.316595][ T474] __x64_sys_write+0x6e/0xb0 [ 79.321281][ T474] ? syscall_exit_to_user_mode+0x27/0x160 [ 79.326980][ T474] do_syscall_64+0x32/0x80 [ 79.331378][ T474] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 79.337256][ T474] RIP: 0033:0x7fabe7ed7ce9 [ 79.341644][ T474] 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 [ 79.361226][ T474] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 79.369613][ T474] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 79.377564][ T474] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 79.385516][ T474] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 79.393671][ T474] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 79.401865][ T474] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000002 [ 79.412058][ T421] ------------[ cut here ]------------ [ 79.417672][ T421] WARNING: CPU: 0 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 79.426813][ T421] Modules linked in: [ 79.430816][ T421] CPU: 0 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 79.441439][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.451612][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 79.457607][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 79.477429][ T421] RSP: 0018:ffffc90000757c28 EFLAGS: 00010282 [ 79.483675][ T421] RAX: 0000000000000000 RBX: 1ffff920000eaf8c RCX: 0000000000000002 [ 79.491756][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 79.499750][ T421] RBP: ffffc90000757ce8 R08: 0000000000000000 R09: 0000000000000008 [ 79.507712][ T421] R10: fffff520000eaf78 R11: 0000000000000000 R12: ffffc90000757c80 [ 79.515700][ T421] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810b5d8900 [ 79.523858][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 79.533041][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.539746][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506b0 [ 79.547886][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.555851][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.563880][ T421] Call Trace: [ 79.567167][ T421] ? clone_private_mount+0x300/0x300 [ 79.572481][ T421] ? change_mnt_propagation+0x5df/0xd40 [ 79.578057][ T421] namespace_unlock+0x331/0x3e0 [ 79.583010][ T421] ? kern_unmount+0xb0/0xb0 [ 79.587489][ T421] ? unhash_mnt+0x3b0/0x3b0 [ 79.592025][ T421] path_umount+0x665/0x1170 [ 79.596614][ T421] ? __detach_mounts+0x210/0x210 [ 79.601675][ T421] ? user_path_at_empty+0xa2/0xf0 [ 79.606701][ T421] __x64_sys_umount+0xfb/0x120 [ 79.611526][ T421] ? path_umount+0x1170/0x1170 [ 79.616317][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 79.622504][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 79.628150][ T421] do_syscall_64+0x32/0x80 [ 79.632674][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 79.638586][ T421] RIP: 0033:0x7fabe7ed9097 [ 79.642989][ T421] 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 [ 79.662619][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 79.671063][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 79.679842][ T421] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 79.687839][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 79.695800][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 79.703776][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000003 [ 79.711877][ T421] ---[ end trace a21a7dc9bb3febdf ]--- [ 79.717462][ T421] ------------[ cut here ]------------ [ 79.723094][ T421] WARNING: CPU: 1 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 79.732022][ T421] Modules linked in: [ 79.735997][ T421] CPU: 1 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 79.737987][ T475] FAULT_INJECTION: forcing a failure. [ 79.737987][ T475] name failslab, interval 1, probability 0, space 0, times 0 [ 79.745881][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.768602][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 79.770425][ T475] CPU: 0 PID: 475 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 79.774208][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 79.784058][ T475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.784060][ T475] Call Trace: [ 79.784073][ T475] dump_stack+0x84/0xad [ 79.784080][ T475] should_fail.cold+0x5/0x1f [ 79.803672][ T421] RSP: 0018:ffffc90000757cf0 EFLAGS: 00010282 [ 79.813686][ T475] ? find_next_bit+0x14/0x20 [ 79.813700][ T475] ? cgroup_exit_cftypes+0x150/0x150 [ 79.816946][ T421] [ 79.821064][ T475] ? percpu_ref_init+0xd1/0x380 [ 79.821069][ T475] __should_failslab+0xd8/0x120 [ 79.821079][ T475] should_failslab+0x9/0x20 [ 79.825631][ T421] RAX: 0000000000000000 RBX: 1ffff920000eafa5 RCX: 0000000000000002 [ 79.831664][ T475] kmem_cache_alloc_trace+0x3d/0x330 [ 79.831670][ T475] ? cgroup_exit_cftypes+0x150/0x150 [ 79.831676][ T475] percpu_ref_init+0xd1/0x380 [ 79.836231][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 79.841490][ T475] cgroup_apply_control_enable+0x486/0xf10 [ 79.841495][ T475] cgroup_subtree_control_write+0x6d3/0xd60 [ 79.841501][ T475] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 79.843796][ T421] RBP: ffffc90000757db0 R08: 0000000000000000 R09: 0000000000000008 [ 79.848615][ T475] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 79.848622][ T475] cgroup_file_write+0x272/0x7c0 [ 79.853436][ T421] R10: fffff520000eaf91 R11: 0000000000000000 R12: ffffc90000757d48 [ 79.857904][ T475] ? __kasan_check_write+0x14/0x20 [ 79.857908][ T475] ? cgroup_file_poll+0xd0/0xd0 [ 79.857912][ T475] ? __mutex_lock_slowpath+0x10/0x10 [ 79.857917][ T475] ? cgroup_file_poll+0xd0/0xd0 [ 79.865860][ T421] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810b5d8900 [ 79.871146][ T475] kernfs_fop_write_iter+0x2d5/0x450 [ 79.871154][ T475] new_sync_write+0x358/0x6e0 [ 79.871160][ T475] ? new_sync_read+0x6e0/0x6e0 [ 79.876407][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 79.881048][ T475] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 79.881053][ T475] ? rw_verify_area+0xc3/0x2b0 [ 79.881059][ T475] vfs_write+0x4f5/0x750 [ 79.889113][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.894962][ T475] ksys_write+0x111/0x210 [ 79.900870][ T421] CR2: 00007ffc76d31368 CR3: 0000000109020000 CR4: 00000000003506a0 [ 79.907013][ T475] ? __ia32_sys_read+0xa0/0xa0 [ 79.915007][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.920740][ T475] ? debug_smp_processor_id+0x17/0x20 [ 79.920753][ T475] ? fpregs_assert_state_consistent+0x49/0xb0 [ 79.925742][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.933696][ T475] __x64_sys_write+0x6e/0xb0 [ 79.933702][ T475] ? syscall_exit_to_user_mode+0x27/0x160 [ 79.933705][ T475] do_syscall_64+0x32/0x80 [ 79.933711][ T475] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 79.933719][ T475] RIP: 0033:0x7fabe7ed7ce9 [ 79.938856][ T421] Call Trace: [ 79.943666][ T475] 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 [ 79.949016][ T421] ? namespace_unlock+0x331/0x3e0 [ 79.953817][ T475] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 [ 79.961789][ T421] ? clone_private_mount+0x300/0x300 [ 79.967023][ T475] ORIG_RAX: 0000000000000001 [ 79.971681][ T421] ? dput+0xac/0x8a0 [ 79.976397][ T475] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 79.985402][ T421] path_umount+0x6a3/0x1170 [ 79.992112][ T475] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 79.992115][ T475] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 79.992117][ T475] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 79.992119][ T475] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000002 [ 80.171711][ T421] ? __detach_mounts+0x210/0x210 [ 80.176619][ T421] ? user_path_at_empty+0xa2/0xf0 [ 80.181623][ T421] __x64_sys_umount+0xfb/0x120 [ 80.186357][ T421] ? path_umount+0x1170/0x1170 [ 80.191125][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 80.197164][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 80.202799][ T421] do_syscall_64+0x32/0x80 [ 80.207192][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 80.213134][ T421] RIP: 0033:0x7fabe7ed9097 [ 80.217533][ T421] 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 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 80.238190][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 80.246675][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 80.254652][ T421] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 80.262609][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 80.270563][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 80.278605][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000003 [ 80.286572][ T421] ---[ end trace a21a7dc9bb3febe0 ]--- [ 80.308533][ T477] FAULT_INJECTION: forcing a failure. [ 80.308533][ T477] name failslab, interval 1, probability 0, space 0, times 0 [ 80.321521][ T477] CPU: 1 PID: 477 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 80.334965][ T477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.344995][ T477] Call Trace: [ 80.348273][ T477] dump_stack+0x84/0xad [ 80.352555][ T477] should_fail.cold+0x5/0x1f [ 80.357121][ T477] ? pids_css_alloc+0x3c/0x130 [ 80.361860][ T477] __should_failslab+0xd8/0x120 [ 80.366685][ T477] should_failslab+0x9/0x20 [ 80.371273][ T477] kmem_cache_alloc_trace+0x3d/0x330 [ 80.376533][ T477] pids_css_alloc+0x3c/0x130 [ 80.381092][ T477] cgroup_apply_control_enable+0x432/0xf10 [ 80.386866][ T477] cgroup_subtree_control_write+0x6d3/0xd60 [ 80.392831][ T477] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 80.398992][ T477] ? kfree+0xc2/0x560 [ 80.402955][ T477] ? __kasan_slab_free+0x129/0x170 [ 80.408133][ T477] cgroup_file_write+0x272/0x7c0 [ 80.413237][ T477] ? __kasan_check_write+0x14/0x20 [ 80.418516][ T477] ? cgroup_file_poll+0xd0/0xd0 [ 80.423562][ T477] ? __mutex_lock_slowpath+0x10/0x10 [ 80.428917][ T477] ? cgroup_file_poll+0xd0/0xd0 [ 80.433771][ T477] kernfs_fop_write_iter+0x2d5/0x450 [ 80.439058][ T477] new_sync_write+0x358/0x6e0 [ 80.443720][ T477] ? new_sync_read+0x6e0/0x6e0 [ 80.448460][ T477] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 80.455200][ T477] ? rw_verify_area+0xc3/0x2b0 [ 80.459943][ T477] vfs_write+0x4f5/0x750 [ 80.464263][ T477] ksys_write+0x111/0x210 [ 80.468574][ T477] ? __ia32_sys_read+0xa0/0xa0 [ 80.473310][ T477] ? debug_smp_processor_id+0x17/0x20 [ 80.478653][ T477] ? fpregs_assert_state_consistent+0x49/0xb0 [ 80.484794][ T477] __x64_sys_write+0x6e/0xb0 [ 80.489372][ T477] ? syscall_exit_to_user_mode+0x27/0x160 [ 80.495063][ T477] do_syscall_64+0x32/0x80 [ 80.499489][ T477] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 80.505364][ T477] RIP: 0033:0x7fabe7ed7ce9 [ 80.509761][ T477] 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 [ 80.529564][ T477] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.537965][ T477] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 80.546179][ T477] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 80.554131][ T477] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 80.562395][ T477] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 80.570359][ T477] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000007 [ 80.608128][ T478] FAULT_INJECTION: forcing a failure. [ 80.608128][ T478] name failslab, interval 1, probability 0, space 0, times 0 [ 80.620896][ T478] CPU: 0 PID: 478 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 80.630773][ T478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.641187][ T478] Call Trace: [ 80.644482][ T478] dump_stack+0x84/0xad [ 80.648615][ T478] should_fail.cold+0x5/0x1f [ 80.653186][ T478] __should_failslab+0xd8/0x120 [ 80.658101][ T478] should_failslab+0x9/0x20 [ 80.662593][ T478] __kmalloc_track_caller+0x5c/0x360 [ 80.667854][ T478] ? __kernfs_new_node+0xaa/0x680 [ 80.672857][ T478] kstrdup_const+0x45/0x70 [ 80.677248][ T478] __kernfs_new_node+0xaa/0x680 [ 80.682074][ T478] ? kernfs_dop_revalidate+0x370/0x370 [ 80.687596][ T478] ? kasan_save_stack+0x42/0x50 [ 80.692424][ T478] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 80.698210][ T478] ? kasan_kmalloc+0x9/0x10 [ 80.702704][ T478] ? snprintf+0x9e/0xd0 [ 80.706834][ T478] ? vsprintf+0x20/0x20 [ 80.710979][ T478] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 80.717203][ T478] ? do_syscall_64+0x32/0x80 [ 80.722574][ T478] kernfs_new_node+0x79/0x110 [ 80.727526][ T478] ? __kasan_check_write+0x14/0x20 [ 80.733636][ T478] __kernfs_create_file+0x24/0x270 [ 80.738937][ T478] cgroup_addrm_files+0x2e2/0x830 [ 80.744721][ T478] ? cgroup_show_path+0x3d0/0x3d0 [ 80.749812][ T478] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 80.755252][ T478] ? __radix_tree_replace+0xd0/0x250 [ 80.761294][ T478] ? idr_replace+0x138/0x150 [ 80.765861][ T478] ? idr_get_next+0x130/0x130 [ 80.775875][ T478] css_populate_dir+0x17a/0x400 [ 80.780795][ T478] cgroup_apply_control_enable+0x39c/0xf10 [ 80.787623][ T478] cgroup_subtree_control_write+0x6d3/0xd60 [ 80.794272][ T478] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 80.800650][ T478] ? kfree+0xc2/0x560 [ 80.804712][ T478] ? __kasan_slab_free+0x129/0x170 [ 80.809813][ T478] cgroup_file_write+0x272/0x7c0 [ 80.814829][ T478] ? __kasan_check_write+0x14/0x20 [ 80.820182][ T478] ? cgroup_file_poll+0xd0/0xd0 [ 80.825177][ T478] ? __mutex_lock_slowpath+0x10/0x10 [ 80.830522][ T478] ? cgroup_file_poll+0xd0/0xd0 [ 80.835342][ T478] kernfs_fop_write_iter+0x2d5/0x450 [ 80.840614][ T478] new_sync_write+0x358/0x6e0 [ 80.845266][ T478] ? psi_group_change+0x667/0xa30 [ 80.850376][ T478] ? new_sync_read+0x6e0/0x6e0 [ 80.855143][ T478] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 80.862241][ T478] ? rw_verify_area+0xc3/0x2b0 [ 80.867154][ T478] vfs_write+0x4f5/0x750 [ 80.871392][ T478] ksys_write+0x111/0x210 [ 80.875692][ T478] ? __ia32_sys_read+0xa0/0xa0 [ 80.880426][ T478] ? debug_smp_processor_id+0x17/0x20 [ 80.885866][ T478] ? fpregs_assert_state_consistent+0x49/0xb0 [ 80.891905][ T478] __x64_sys_write+0x6e/0xb0 [ 80.896684][ T478] ? syscall_exit_to_user_mode+0x27/0x160 [ 80.902515][ T478] do_syscall_64+0x32/0x80 [ 80.906911][ T478] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 80.912781][ T478] RIP: 0033:0x7fabe7ed7ce9 [ 80.917258][ T478] 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 [ 80.937864][ T478] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.946855][ T478] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 80.955597][ T478] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 80.963552][ T478] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 80.971583][ T478] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 80.979621][ T478] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000004 [ 80.987872][ T478] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 81.038235][ T476] FAULT_INJECTION: forcing a failure. [ 81.038235][ T476] name failslab, interval 1, probability 0, space 0, times 0 [ 81.051717][ T476] CPU: 1 PID: 476 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 81.062318][ T476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.073392][ T476] Call Trace: [ 81.077402][ T476] dump_stack+0x84/0xad [ 81.082629][ T476] should_fail.cold+0x5/0x1f [ 81.087801][ T476] __should_failslab+0xd8/0x120 [ 81.093161][ T476] should_failslab+0x9/0x20 [ 81.098204][ T476] __kmalloc_track_caller+0x5c/0x360 [ 81.103882][ T476] ? __kernfs_new_node+0xaa/0x680 [ 81.109080][ T476] kstrdup_const+0x45/0x70 [ 81.113896][ T476] __kernfs_new_node+0xaa/0x680 [ 81.118907][ T476] ? kernfs_dop_revalidate+0x370/0x370 [ 81.125197][ T476] ? kasan_save_stack+0x42/0x50 [ 81.130319][ T476] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 81.136198][ T476] ? kasan_kmalloc+0x9/0x10 [ 81.140806][ T476] ? snprintf+0x9e/0xd0 [ 81.144956][ T476] ? vsprintf+0x20/0x20 [ 81.149314][ T476] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 81.156216][ T476] ? do_syscall_64+0x32/0x80 [ 81.160884][ T476] kernfs_new_node+0x79/0x110 [ 81.165651][ T476] ? __kasan_check_write+0x14/0x20 [ 81.170991][ T476] __kernfs_create_file+0x24/0x270 [ 81.176203][ T476] cgroup_addrm_files+0x2e2/0x830 [ 81.181428][ T476] ? cgroup_show_path+0x3d0/0x3d0 [ 81.186686][ T476] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 81.192604][ T476] ? __radix_tree_replace+0xd0/0x250 [ 81.198259][ T476] ? idr_replace+0x138/0x150 [ 81.202853][ T476] ? idr_get_next+0x130/0x130 [ 81.207594][ T476] css_populate_dir+0x17a/0x400 [ 81.212417][ T476] cgroup_apply_control_enable+0x39c/0xf10 [ 81.218235][ T476] cgroup_subtree_control_write+0x6d3/0xd60 [ 81.224665][ T476] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 81.230973][ T476] ? kfree+0xc2/0x560 [ 81.234930][ T476] ? __kasan_slab_free+0x129/0x170 [ 81.240542][ T476] cgroup_file_write+0x272/0x7c0 [ 81.247547][ T476] ? __kasan_check_write+0x14/0x20 [ 81.252746][ T476] ? cgroup_file_poll+0xd0/0xd0 [ 81.257583][ T476] ? __mutex_lock_slowpath+0x10/0x10 [ 81.262867][ T476] ? cgroup_file_poll+0xd0/0xd0 [ 81.267801][ T476] kernfs_fop_write_iter+0x2d5/0x450 [ 81.273091][ T476] new_sync_write+0x358/0x6e0 [ 81.277746][ T476] ? new_sync_read+0x6e0/0x6e0 [ 81.282490][ T476] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 81.290024][ T476] ? rw_verify_area+0xc3/0x2b0 [ 81.294854][ T476] vfs_write+0x4f5/0x750 [ 81.299636][ T476] ksys_write+0x111/0x210 [ 81.303969][ T476] ? __ia32_sys_read+0xa0/0xa0 [ 81.308721][ T476] ? debug_smp_processor_id+0x17/0x20 [ 81.314153][ T476] ? fpregs_assert_state_consistent+0x49/0xb0 [ 81.320560][ T476] __x64_sys_write+0x6e/0xb0 [ 81.325318][ T476] ? syscall_exit_to_user_mode+0x27/0x160 [ 81.331268][ T476] do_syscall_64+0x32/0x80 [ 81.336125][ T476] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 81.342003][ T476] RIP: 0033:0x7fabe7ed7ce9 [ 81.347358][ T476] 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 [ 81.372106][ T476] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.380492][ T476] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 81.389048][ T476] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 81.397263][ T476] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 81.405216][ T476] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 81.413514][ T476] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000001 [ 81.422058][ T476] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 81.468228][ T473] FAULT_INJECTION: forcing a failure. [ 81.468228][ T473] name failslab, interval 1, probability 0, space 0, times 0 [ 81.481791][ T473] CPU: 0 PID: 473 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 81.492207][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.502336][ T473] Call Trace: [ 81.505704][ T473] dump_stack+0x84/0xad [ 81.510121][ T473] should_fail.cold+0x5/0x1f [ 81.514705][ T473] ? __kernfs_new_node+0xe5/0x680 [ 81.520365][ T473] __should_failslab+0xd8/0x120 [ 81.525430][ T473] should_failslab+0x9/0x20 [ 81.530147][ T473] kmem_cache_alloc+0x2d/0x4e0 [ 81.535974][ T473] __kernfs_new_node+0xe5/0x680 [ 81.540933][ T473] ? kernfs_dop_revalidate+0x370/0x370 [ 81.546828][ T473] ? kasan_save_stack+0x42/0x50 [ 81.552194][ T473] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 81.559549][ T473] ? kasan_kmalloc+0x9/0x10 [ 81.564332][ T473] ? snprintf+0x9e/0xd0 [ 81.569788][ T473] ? vsprintf+0x20/0x20 [ 81.574446][ T473] kernfs_new_node+0x79/0x110 [ 81.579132][ T473] __kernfs_create_file+0x24/0x270 [ 81.584469][ T473] cgroup_addrm_files+0x2e2/0x830 [ 81.589693][ T473] ? cgroup_show_path+0x3d0/0x3d0 [ 81.594998][ T473] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 81.600929][ T473] ? __radix_tree_replace+0xd0/0x250 [ 81.607171][ T473] ? idr_replace+0x138/0x150 [ 81.611947][ T473] ? idr_get_next+0x130/0x130 [ 81.616798][ T473] css_populate_dir+0x17a/0x400 [ 81.621753][ T473] cgroup_apply_control_enable+0x39c/0xf10 [ 81.627648][ T473] cgroup_subtree_control_write+0x6d3/0xd60 [ 81.633523][ T473] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 81.639683][ T473] ? kfree+0xc2/0x560 [ 81.643794][ T473] ? __kasan_slab_free+0x129/0x170 [ 81.648994][ T473] cgroup_file_write+0x272/0x7c0 [ 81.653904][ T473] ? __kasan_check_write+0x14/0x20 [ 81.658985][ T473] ? cgroup_file_poll+0xd0/0xd0 [ 81.663929][ T473] ? __mutex_lock_slowpath+0x10/0x10 [ 81.669191][ T473] ? cgroup_file_poll+0xd0/0xd0 [ 81.674039][ T473] kernfs_fop_write_iter+0x2d5/0x450 [ 81.679341][ T473] new_sync_write+0x358/0x6e0 [ 81.684008][ T473] ? new_sync_read+0x6e0/0x6e0 [ 81.689299][ T473] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 81.696155][ T473] ? rw_verify_area+0xc3/0x2b0 [ 81.701879][ T473] vfs_write+0x4f5/0x750 [ 81.706131][ T473] ksys_write+0x111/0x210 [ 81.710457][ T473] ? __ia32_sys_read+0xa0/0xa0 [ 81.715229][ T473] ? debug_smp_processor_id+0x17/0x20 [ 81.720791][ T473] ? fpregs_assert_state_consistent+0x49/0xb0 [ 81.726833][ T473] __x64_sys_write+0x6e/0xb0 [ 81.731663][ T473] ? syscall_exit_to_user_mode+0x27/0x160 [ 81.737464][ T473] do_syscall_64+0x32/0x80 [ 81.742165][ T473] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 81.748845][ T473] RIP: 0033:0x7fabe7ed7ce9 [ 81.753253][ T473] 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 [ 81.774666][ T473] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.783243][ T473] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 81.791470][ T473] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 81.799952][ T473] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 81.808016][ T473] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 81.816152][ T473] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000b [ 81.824376][ T473] cgroup: cgroup_addrm_files: failed to add events, err=-12 [ 81.833284][ T423] ------------[ cut here ]------------ [ 81.838783][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 81.847723][ T423] Modules linked in: [ 81.851627][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 81.861510][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.871979][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 81.877790][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 81.897436][ T423] RSP: 0018:ffffc900007a7c28 EFLAGS: 00010282 [ 81.903691][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4f8c RCX: 0000000000000002 [ 81.911867][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 81.919861][ T423] RBP: ffffc900007a7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 81.927925][ T423] R10: fffff520000f4f78 R11: ffff8881f7155bc0 R12: ffffc900007a7c80 [ 81.935879][ T423] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810b5d8d80 [ 81.943869][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 81.952941][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.959535][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 81.967497][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.975576][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.983559][ T423] Call Trace: [ 81.986826][ T423] ? clone_private_mount+0x300/0x300 [ 81.992112][ T423] ? change_mnt_propagation+0x5df/0xd40 [ 81.997782][ T423] namespace_unlock+0x331/0x3e0 [ 82.002702][ T423] ? kern_unmount+0xb0/0xb0 [ 82.007193][ T423] ? unhash_mnt+0x3b0/0x3b0 [ 82.011838][ T423] path_umount+0x665/0x1170 [ 82.016366][ T423] ? __detach_mounts+0x210/0x210 [ 82.021311][ T423] ? user_path_at_empty+0xa2/0xf0 [ 82.026410][ T423] __x64_sys_umount+0xfb/0x120 [ 82.031188][ T423] ? path_umount+0x1170/0x1170 [ 82.035940][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 82.042133][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 82.047882][ T423] do_syscall_64+0x32/0x80 [ 82.052465][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 82.058374][ T423] RIP: 0033:0x7fabe7ed9097 [ 82.062803][ T423] 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 [ 82.082740][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 82.091533][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 82.099549][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 82.107509][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 82.115506][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 82.123664][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000c [ 82.131663][ T423] ---[ end trace a21a7dc9bb3febe1 ]--- [ 82.137194][ T423] ------------[ cut here ]------------ [ 82.142725][ T423] WARNING: CPU: 0 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 82.151732][ T423] Modules linked in: [ 82.155712][ T423] CPU: 0 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 82.165623][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.175881][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 82.181520][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 82.201448][ T423] RSP: 0018:ffffc900007a7cf0 EFLAGS: 00010282 [ 82.207589][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4fa5 RCX: 0000000000000002 [ 82.215611][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 82.223726][ T423] RBP: ffffc900007a7db0 R08: 0000000000000000 R09: 0000000000000008 [ 82.231969][ T423] R10: fffff520000f4f91 R11: ffff8881f7155bc0 R12: ffffc900007a7d48 [ 82.240072][ T423] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810b5d8d80 [ 82.248068][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 82.256989][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.263689][ T423] CR2: 00007fabe7f4e350 CR3: 0000000117a6d000 CR4: 00000000003506b0 [ 82.271689][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.279720][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.287914][ T423] Call Trace: [ 82.291663][ T423] ? namespace_unlock+0x331/0x3e0 [ 82.296762][ T423] ? clone_private_mount+0x300/0x300 [ 82.302254][ T423] ? dput+0xac/0x8a0 [ 82.306508][ T423] path_umount+0x6a3/0x1170 [ 82.311043][ T423] ? __detach_mounts+0x210/0x210 [ 82.315970][ T423] ? user_path_at_empty+0xa2/0xf0 [ 82.321008][ T423] __x64_sys_umount+0xfb/0x120 [ 82.325925][ T423] ? path_umount+0x1170/0x1170 [ 82.330716][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 82.336771][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 82.342419][ T423] do_syscall_64+0x32/0x80 [ 82.346849][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 82.352788][ T423] RIP: 0033:0x7fabe7ed9097 [ 82.357217][ T423] 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 [ 82.377058][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 82.385770][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 82.393772][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 82.401859][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 82.410012][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 82.418153][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000c [ 82.426208][ T423] ---[ end trace a21a7dc9bb3febe2 ]--- [ 82.432177][ T481] FAULT_INJECTION: forcing a failure. [ 82.432177][ T481] name failslab, interval 1, probability 0, space 0, times 0 [ 82.445233][ T481] CPU: 1 PID: 481 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 82.455114][ T481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.465147][ T481] Call Trace: [ 82.468418][ T481] dump_stack+0x84/0xad [ 82.472559][ T481] should_fail.cold+0x5/0x1f [ 82.477493][ T481] ? pids_css_alloc+0x3c/0x130 [ 82.482266][ T481] __should_failslab+0xd8/0x120 [ 82.487107][ T481] should_failslab+0x9/0x20 [ 82.491604][ T481] kmem_cache_alloc_trace+0x3d/0x330 [ 82.496870][ T481] pids_css_alloc+0x3c/0x130 [ 82.501533][ T481] cgroup_apply_control_enable+0x432/0xf10 [ 82.507307][ T481] cgroup_subtree_control_write+0x6d3/0xd60 [ 82.513355][ T481] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 82.519392][ T481] ? kfree+0xc2/0x560 [ 82.523342][ T481] ? __kasan_slab_free+0x129/0x170 [ 82.528600][ T481] cgroup_file_write+0x272/0x7c0 [ 82.533530][ T481] ? __kasan_check_write+0x14/0x20 [ 82.538726][ T481] ? cgroup_file_poll+0xd0/0xd0 [ 82.543715][ T481] ? __mutex_lock_slowpath+0x10/0x10 [ 82.548989][ T481] ? cgroup_file_poll+0xd0/0xd0 [ 82.554052][ T481] kernfs_fop_write_iter+0x2d5/0x450 [ 82.559537][ T481] new_sync_write+0x358/0x6e0 [ 82.564194][ T481] ? new_sync_read+0x6e0/0x6e0 [ 82.570512][ T481] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 82.577280][ T481] ? rw_verify_area+0xc3/0x2b0 [ 82.582019][ T481] vfs_write+0x4f5/0x750 [ 82.586779][ T481] ksys_write+0x111/0x210 [ 82.591083][ T481] ? __ia32_sys_read+0xa0/0xa0 [ 82.595956][ T481] ? debug_smp_processor_id+0x17/0x20 [ 82.601301][ T481] ? fpregs_assert_state_consistent+0x49/0xb0 [ 82.607440][ T481] __x64_sys_write+0x6e/0xb0 [ 82.612109][ T481] ? syscall_exit_to_user_mode+0x27/0x160 [ 82.618043][ T481] do_syscall_64+0x32/0x80 [ 82.622550][ T481] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 82.628454][ T481] RIP: 0033:0x7fabe7ed7ce9 [ 82.632864][ T481] 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 [ 82.658098][ T481] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 82.666572][ T481] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 82.674553][ T481] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 82.682844][ T481] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 82.691176][ T481] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 82.699227][ T481] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000008 [ 82.709452][ T420] ------------[ cut here ]------------ [ 82.715281][ T420] WARNING: CPU: 0 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 82.724394][ T420] Modules linked in: [ 82.728388][ T420] CPU: 0 PID: 420 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 82.738641][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.751683][ T420] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 82.757485][ T420] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 82.777809][ T420] RSP: 0018:ffffc90000747c28 EFLAGS: 00010282 [ 82.783969][ T420] RAX: 0000000000000000 RBX: 1ffff920000e8f8c RCX: 0000000000000002 [ 82.792479][ T420] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 82.801065][ T420] RBP: ffffc90000747ce8 R08: 0000000000000000 R09: 0000000000000008 [ 82.809129][ T420] R10: fffff520000e8f78 R11: 0000000000000000 R12: ffffc90000747c80 [ 82.817207][ T420] R13: 00000000fffffffb R14: dffffc0000000000 R15: ffff88810b5d9980 [ 82.825462][ T420] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 82.835002][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.841783][ T420] CR2: 00007ffc76d2fff8 CR3: 0000000107efc000 CR4: 00000000003506b0 [ 82.850251][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.858226][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.866565][ T420] Call Trace: [ 82.870151][ T420] ? clone_private_mount+0x300/0x300 [ 82.875588][ T420] ? change_mnt_propagation+0x5df/0xd40 [ 82.882599][ T420] namespace_unlock+0x331/0x3e0 [ 82.887534][ T420] ? kern_unmount+0xb0/0xb0 [ 82.892037][ T420] ? unhash_mnt+0x3b0/0x3b0 [ 82.896508][ T420] path_umount+0x665/0x1170 [ 82.901006][ T420] ? __detach_mounts+0x210/0x210 [ 82.906000][ T420] ? user_path_at_empty+0xa2/0xf0 [ 82.911014][ T420] __x64_sys_umount+0xfb/0x120 [ 82.915981][ T420] ? path_umount+0x1170/0x1170 [ 82.920985][ T420] ? fpregs_assert_state_consistent+0x49/0xb0 [ 82.928169][ T420] ? exit_to_user_mode_prepare+0x30/0xe0 [ 82.934298][ T420] do_syscall_64+0x32/0x80 [ 82.938978][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 82.945985][ T420] RIP: 0033:0x7fabe7ed9097 [ 82.950641][ T420] 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 [ 82.971160][ T420] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 82.980367][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 82.988328][ T420] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 82.996379][ T420] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 83.004492][ T420] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 83.013219][ T420] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000009 [ 83.021209][ T420] ---[ end trace a21a7dc9bb3febe3 ]--- [ 83.027996][ T420] ------------[ cut here ]------------ [ 83.033492][ T420] WARNING: CPU: 0 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 83.043541][ T420] Modules linked in: [ 83.047514][ T420] CPU: 0 PID: 420 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 83.057444][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.067644][ T420] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 83.073300][ T420] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 83.092904][ T420] RSP: 0018:ffffc90000747cf0 EFLAGS: 00010286 [ 83.098985][ T420] RAX: 0000000000000000 RBX: 1ffff920000e8fa5 RCX: 0000000000000002 [ 83.106968][ T420] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 83.114951][ T420] RBP: ffffc90000747db0 R08: 0000000000000000 R09: 0000000000000008 [ 83.123113][ T420] R10: fffff520000e8f91 R11: 0000000000000000 R12: ffffc90000747d48 [ 83.131095][ T420] R13: 00000000fffffffa R14: dffffc0000000000 R15: ffff88810b5d9980 [ 83.139149][ T420] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 83.148095][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.154663][ T420] CR2: 00007ffc76d2fff8 CR3: 0000000107efc000 CR4: 00000000003506b0 [ 83.162643][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.170698][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.178666][ T420] Call Trace: [ 83.181941][ T420] ? namespace_unlock+0x331/0x3e0 [ 83.186946][ T420] ? clone_private_mount+0x300/0x300 [ 83.192238][ T420] ? dput+0xac/0x8a0 [ 83.196205][ T420] path_umount+0x6a3/0x1170 [ 83.200714][ T420] ? __detach_mounts+0x210/0x210 [ 83.205662][ T420] ? user_path_at_empty+0xa2/0xf0 [ 83.210693][ T420] __x64_sys_umount+0xfb/0x120 [ 83.215446][ T420] ? path_umount+0x1170/0x1170 [ 83.220215][ T420] ? fpregs_assert_state_consistent+0x49/0xb0 [ 83.226308][ T420] ? exit_to_user_mode_prepare+0x30/0xe0 [ 83.232038][ T420] do_syscall_64+0x32/0x80 [ 83.236441][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 83.242354][ T420] RIP: 0033:0x7fabe7ed9097 [ 83.246917][ T420] 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 [ 83.267569][ T420] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 83.276183][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 83.284164][ T420] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 83.292247][ T420] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 83.300249][ T420] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 83.309013][ T420] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000009 [ 83.317120][ T420] ---[ end trace a21a7dc9bb3febe4 ]--- [ 83.323252][ T484] FAULT_INJECTION: forcing a failure. [ 83.323252][ T484] name failslab, interval 1, probability 0, space 0, times 0 [ 83.335857][ T484] CPU: 0 PID: 484 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 83.345894][ T484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.356314][ T484] Call Trace: [ 83.359596][ T484] dump_stack+0x84/0xad [ 83.363750][ T484] should_fail.cold+0x5/0x1f [ 83.368520][ T484] ? find_next_bit+0x14/0x20 [ 83.373143][ T484] ? cgroup_exit_cftypes+0x150/0x150 [ 83.378402][ T484] ? percpu_ref_init+0xd1/0x380 [ 83.383315][ T484] __should_failslab+0xd8/0x120 [ 83.389533][ T484] should_failslab+0x9/0x20 [ 83.394009][ T484] kmem_cache_alloc_trace+0x3d/0x330 [ 83.399276][ T484] ? cgroup_exit_cftypes+0x150/0x150 [ 83.404818][ T484] percpu_ref_init+0xd1/0x380 [ 83.409559][ T484] cgroup_apply_control_enable+0x486/0xf10 [ 83.415336][ T484] cgroup_subtree_control_write+0x6d3/0xd60 [ 83.421227][ T484] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 83.427302][ T484] ? kfree+0xc2/0x560 [ 83.431342][ T484] ? __kasan_slab_free+0x129/0x170 [ 83.436509][ T484] cgroup_file_write+0x272/0x7c0 [ 83.441480][ T484] ? __kasan_check_write+0x14/0x20 [ 83.446924][ T484] ? cgroup_file_poll+0xd0/0xd0 [ 83.451933][ T484] ? __mutex_lock_slowpath+0x10/0x10 [ 83.457232][ T484] ? cgroup_file_poll+0xd0/0xd0 [ 83.462089][ T484] kernfs_fop_write_iter+0x2d5/0x450 [ 83.467364][ T484] new_sync_write+0x358/0x6e0 [ 83.472017][ T484] ? new_sync_read+0x6e0/0x6e0 [ 83.476756][ T484] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 83.483728][ T484] ? rw_verify_area+0xc3/0x2b0 [ 83.488651][ T484] vfs_write+0x4f5/0x750 [ 83.492958][ T484] ksys_write+0x111/0x210 [ 83.497266][ T484] ? __ia32_sys_read+0xa0/0xa0 [ 83.502012][ T484] ? debug_smp_processor_id+0x17/0x20 [ 83.507372][ T484] ? fpregs_assert_state_consistent+0x49/0xb0 [ 83.513426][ T484] __x64_sys_write+0x6e/0xb0 [ 83.518000][ T484] ? syscall_exit_to_user_mode+0x27/0x160 [ 83.523738][ T484] do_syscall_64+0x32/0x80 [ 83.528140][ T484] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 83.534013][ T484] RIP: 0033:0x7fabe7ed7ce9 [ 83.538491][ T484] 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 [ 83.558099][ T484] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.566699][ T484] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 83.575019][ T484] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 83.582977][ T484] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 83.591021][ T484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 83.598974][ T484] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000c [ 83.638458][ T479] FAULT_INJECTION: forcing a failure. [ 83.638458][ T479] name failslab, interval 1, probability 0, space 0, times 0 [ 83.651188][ T479] CPU: 1 PID: 479 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 83.661085][ T479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.671120][ T479] Call Trace: [ 83.674420][ T479] dump_stack+0x84/0xad [ 83.678550][ T479] should_fail.cold+0x5/0x1f [ 83.683201][ T479] ? pids_css_alloc+0x3c/0x130 [ 83.687936][ T479] __should_failslab+0xd8/0x120 [ 83.692847][ T479] should_failslab+0x9/0x20 [ 83.697322][ T479] kmem_cache_alloc_trace+0x3d/0x330 [ 83.702767][ T479] pids_css_alloc+0x3c/0x130 [ 83.707343][ T479] cgroup_apply_control_enable+0x432/0xf10 [ 83.713129][ T479] cgroup_subtree_control_write+0x6d3/0xd60 [ 83.718994][ T479] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 83.725286][ T479] ? kfree+0xc2/0x560 [ 83.729264][ T479] ? __kasan_slab_free+0x129/0x170 [ 83.734358][ T479] cgroup_file_write+0x272/0x7c0 [ 83.739294][ T479] ? __kasan_check_write+0x14/0x20 [ 83.744533][ T479] ? cgroup_file_poll+0xd0/0xd0 [ 83.749372][ T479] ? __mutex_lock_slowpath+0x10/0x10 [ 83.754818][ T479] ? cgroup_file_poll+0xd0/0xd0 [ 83.759827][ T479] kernfs_fop_write_iter+0x2d5/0x450 [ 83.765093][ T479] new_sync_write+0x358/0x6e0 [ 83.770068][ T479] ? new_sync_read+0x6e0/0x6e0 [ 83.774878][ T479] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 83.781816][ T479] ? rw_verify_area+0xc3/0x2b0 [ 83.786777][ T479] vfs_write+0x4f5/0x750 [ 83.791177][ T479] ksys_write+0x111/0x210 [ 83.795504][ T479] ? __ia32_sys_read+0xa0/0xa0 [ 83.800276][ T479] ? debug_smp_processor_id+0x17/0x20 [ 83.805630][ T479] ? fpregs_assert_state_consistent+0x49/0xb0 [ 83.811682][ T479] __x64_sys_write+0x6e/0xb0 [ 83.816342][ T479] ? syscall_exit_to_user_mode+0x27/0x160 [ 83.822049][ T479] do_syscall_64+0x32/0x80 [ 83.826511][ T479] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 83.832396][ T479] RIP: 0033:0x7fabe7ed7ce9 [ 83.836789][ T479] 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 [ 83.856378][ T479] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.864763][ T479] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 83.872710][ T479] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 83.880653][ T479] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 83.888940][ T479] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 83.897043][ T479] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000003 [ 83.928096][ T482] FAULT_INJECTION: forcing a failure. [ 83.928096][ T482] name failslab, interval 1, probability 0, space 0, times 0 [ 83.940913][ T482] CPU: 1 PID: 482 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 83.950911][ T482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.961517][ T482] Call Trace: [ 83.966688][ T482] dump_stack+0x84/0xad [ 83.970878][ T482] should_fail.cold+0x5/0x1f [ 83.975472][ T482] __should_failslab+0xd8/0x120 [ 83.980438][ T482] should_failslab+0x9/0x20 [ 83.984919][ T482] __kmalloc_track_caller+0x5c/0x360 [ 83.990291][ T482] ? __kernfs_new_node+0xaa/0x680 [ 83.995300][ T482] kstrdup_const+0x45/0x70 [ 84.000161][ T482] __kernfs_new_node+0xaa/0x680 [ 84.004995][ T482] ? kernfs_dop_revalidate+0x370/0x370 [ 84.010498][ T482] ? kasan_save_stack+0x42/0x50 [ 84.015336][ T482] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 84.021118][ T482] ? kasan_kmalloc+0x9/0x10 [ 84.025632][ T482] ? snprintf+0x9e/0xd0 [ 84.029777][ T482] ? vsprintf+0x20/0x20 [ 84.033906][ T482] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 84.039949][ T482] ? do_syscall_64+0x32/0x80 [ 84.045653][ T482] kernfs_new_node+0x79/0x110 [ 84.050443][ T482] __kernfs_create_file+0x24/0x270 [ 84.055536][ T482] cgroup_addrm_files+0x2e2/0x830 [ 84.060537][ T482] ? cgroup_show_path+0x3d0/0x3d0 [ 84.065706][ T482] ? irq_exit_rcu+0x3a/0x1a0 [ 84.070390][ T482] ? sysvec_apic_timer_interrupt+0x4a/0xe0 [ 84.076162][ T482] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 84.082420][ T482] css_populate_dir+0x17a/0x400 [ 84.087252][ T482] cgroup_apply_control_enable+0x39c/0xf10 [ 84.093230][ T482] cgroup_subtree_control_write+0x6d3/0xd60 [ 84.099113][ T482] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 84.105164][ T482] ? kfree+0xc2/0x560 [ 84.109193][ T482] ? __kasan_slab_free+0x129/0x170 [ 84.114394][ T482] cgroup_file_write+0x272/0x7c0 [ 84.119416][ T482] ? __kasan_check_write+0x14/0x20 [ 84.124619][ T482] ? cgroup_file_poll+0xd0/0xd0 [ 84.129741][ T482] ? __mutex_lock_slowpath+0x10/0x10 [ 84.135122][ T482] ? cgroup_file_poll+0xd0/0xd0 [ 84.139953][ T482] kernfs_fop_write_iter+0x2d5/0x450 [ 84.145211][ T482] new_sync_write+0x358/0x6e0 [ 84.149878][ T482] ? new_sync_read+0x6e0/0x6e0 [ 84.154649][ T482] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 84.161387][ T482] ? rw_verify_area+0xc3/0x2b0 [ 84.166126][ T482] vfs_write+0x4f5/0x750 [ 84.170338][ T482] ksys_write+0x111/0x210 [ 84.174645][ T482] ? __ia32_sys_read+0xa0/0xa0 [ 84.179678][ T482] ? debug_smp_processor_id+0x17/0x20 [ 84.185144][ T482] ? fpregs_assert_state_consistent+0x49/0xb0 [ 84.191186][ T482] __x64_sys_write+0x6e/0xb0 [ 84.195836][ T482] ? syscall_exit_to_user_mode+0x27/0x160 [ 84.201524][ T482] do_syscall_64+0x32/0x80 [ 84.205911][ T482] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 84.211772][ T482] RIP: 0033:0x7fabe7ed7ce9 [ 84.216245][ T482] 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 [ 84.236215][ T482] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.245921][ T482] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 84.254075][ T482] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 84.262035][ T482] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 84.270093][ T482] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 84.278052][ T482] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000005 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 84.289023][ T482] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 84.308311][ T486] FAULT_INJECTION: forcing a failure. [ 84.308311][ T486] name failslab, interval 1, probability 0, space 0, times 0 [ 84.321866][ T486] CPU: 1 PID: 486 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 84.332044][ T486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.342177][ T486] Call Trace: [ 84.345449][ T486] dump_stack+0x84/0xad [ 84.349702][ T486] should_fail.cold+0x5/0x1f [ 84.354390][ T486] ? find_next_bit+0x14/0x20 [ 84.359060][ T486] ? cgroup_exit_cftypes+0x150/0x150 [ 84.364700][ T486] ? percpu_ref_init+0xd1/0x380 [ 84.369576][ T486] __should_failslab+0xd8/0x120 [ 84.375670][ T486] should_failslab+0x9/0x20 [ 84.380259][ T486] kmem_cache_alloc_trace+0x3d/0x330 [ 84.385709][ T486] ? cgroup_exit_cftypes+0x150/0x150 [ 84.390977][ T486] percpu_ref_init+0xd1/0x380 [ 84.395632][ T486] cgroup_apply_control_enable+0x486/0xf10 [ 84.401540][ T486] cgroup_subtree_control_write+0x6d3/0xd60 [ 84.407533][ T486] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 84.413590][ T486] ? kfree+0xc2/0x560 [ 84.417807][ T486] ? __kasan_slab_free+0x129/0x170 [ 84.422906][ T486] cgroup_file_write+0x272/0x7c0 [ 84.428002][ T486] ? __kasan_check_write+0x14/0x20 [ 84.433343][ T486] ? cgroup_file_poll+0xd0/0xd0 [ 84.438265][ T486] ? __mutex_lock_slowpath+0x10/0x10 [ 84.443527][ T486] ? cgroup_file_poll+0xd0/0xd0 [ 84.448581][ T486] kernfs_fop_write_iter+0x2d5/0x450 [ 84.454074][ T486] new_sync_write+0x358/0x6e0 [ 84.458862][ T486] ? new_sync_read+0x6e0/0x6e0 [ 84.463725][ T486] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 84.470478][ T486] ? rw_verify_area+0xc3/0x2b0 [ 84.475218][ T486] vfs_write+0x4f5/0x750 [ 84.479435][ T486] ksys_write+0x111/0x210 [ 84.483746][ T486] ? __ia32_sys_read+0xa0/0xa0 [ 84.488492][ T486] ? debug_smp_processor_id+0x17/0x20 [ 84.493841][ T486] ? fpregs_assert_state_consistent+0x49/0xb0 [ 84.500070][ T486] __x64_sys_write+0x6e/0xb0 [ 84.504640][ T486] ? syscall_exit_to_user_mode+0x27/0x160 [ 84.510343][ T486] do_syscall_64+0x32/0x80 [ 84.514891][ T486] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 84.520762][ T486] RIP: 0033:0x7fabe7ed7ce9 [ 84.525248][ T486] 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 [ 84.545110][ T486] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.553501][ T486] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 84.561536][ T486] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 84.569919][ T486] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 84.577888][ T486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 84.585920][ T486] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000d [ 84.628283][ T483] FAULT_INJECTION: forcing a failure. [ 84.628283][ T483] name failslab, interval 1, probability 0, space 0, times 0 [ 84.641248][ T483] CPU: 1 PID: 483 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 84.651460][ T483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.661751][ T483] Call Trace: [ 84.665119][ T483] dump_stack+0x84/0xad [ 84.669258][ T483] should_fail.cold+0x5/0x1f [ 84.674004][ T483] ? find_next_bit+0x14/0x20 [ 84.678905][ T483] ? cgroup_exit_cftypes+0x150/0x150 [ 84.684421][ T483] ? percpu_ref_init+0xd1/0x380 [ 84.689374][ T483] __should_failslab+0xd8/0x120 [ 84.694208][ T483] should_failslab+0x9/0x20 [ 84.698937][ T483] kmem_cache_alloc_trace+0x3d/0x330 [ 84.704326][ T483] ? cgroup_exit_cftypes+0x150/0x150 [ 84.710003][ T483] percpu_ref_init+0xd1/0x380 [ 84.714941][ T483] cgroup_apply_control_enable+0x486/0xf10 [ 84.721343][ T483] cgroup_subtree_control_write+0x6d3/0xd60 [ 84.727230][ T483] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 84.734266][ T483] ? kfree+0xc2/0x560 [ 84.739276][ T483] ? __kasan_slab_free+0x129/0x170 [ 84.744550][ T483] cgroup_file_write+0x272/0x7c0 [ 84.749842][ T483] ? __kasan_check_write+0x14/0x20 [ 84.755740][ T483] ? cgroup_file_poll+0xd0/0xd0 [ 84.760765][ T483] ? __mutex_lock_slowpath+0x10/0x10 [ 84.766331][ T483] ? cgroup_file_poll+0xd0/0xd0 [ 84.771542][ T483] kernfs_fop_write_iter+0x2d5/0x450 [ 84.777749][ T483] new_sync_write+0x358/0x6e0 [ 84.783029][ T483] ? new_sync_read+0x6e0/0x6e0 [ 84.787957][ T483] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 84.795767][ T483] ? rw_verify_area+0xc3/0x2b0 [ 84.800521][ T483] vfs_write+0x4f5/0x750 [ 84.805633][ T483] ksys_write+0x111/0x210 [ 84.810051][ T483] ? __ia32_sys_read+0xa0/0xa0 [ 84.814836][ T483] ? debug_smp_processor_id+0x17/0x20 [ 84.820208][ T483] ? fpregs_assert_state_consistent+0x49/0xb0 [ 84.826264][ T483] __x64_sys_write+0x6e/0xb0 [ 84.830973][ T483] ? syscall_exit_to_user_mode+0x27/0x160 [ 84.836774][ T483] do_syscall_64+0x32/0x80 [ 84.841184][ T483] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 84.847152][ T483] RIP: 0033:0x7fabe7ed7ce9 [ 84.851569][ T483] 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 [ 84.871189][ T483] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.879841][ T483] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 84.887793][ T483] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 84.895771][ T483] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 84.903905][ T483] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 84.911990][ T483] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000002 [ 84.958309][ T490] FAULT_INJECTION: forcing a failure. [ 84.958309][ T490] name failslab, interval 1, probability 0, space 0, times 0 [ 84.971309][ T490] CPU: 0 PID: 490 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 84.981292][ T490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.992661][ T490] Call Trace: [ 84.995944][ T490] dump_stack+0x84/0xad [ 85.000296][ T490] should_fail.cold+0x5/0x1f [ 85.004978][ T490] __should_failslab+0xd8/0x120 [ 85.009839][ T490] should_failslab+0x9/0x20 [ 85.014327][ T490] __kmalloc_track_caller+0x5c/0x360 [ 85.019594][ T490] ? __kernfs_new_node+0xaa/0x680 [ 85.024698][ T490] kstrdup_const+0x45/0x70 [ 85.029118][ T490] __kernfs_new_node+0xaa/0x680 [ 85.034062][ T490] ? kernfs_dop_revalidate+0x370/0x370 [ 85.039525][ T490] ? kasan_save_stack+0x42/0x50 [ 85.044576][ T490] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 85.050712][ T490] ? kasan_kmalloc+0x9/0x10 [ 85.055309][ T490] ? snprintf+0x9e/0xd0 [ 85.059440][ T490] ? vsprintf+0x20/0x20 [ 85.063684][ T490] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 85.069763][ T490] ? do_syscall_64+0x32/0x80 [ 85.074361][ T490] kernfs_new_node+0x79/0x110 [ 85.079101][ T490] ? __kasan_check_write+0x14/0x20 [ 85.084289][ T490] __kernfs_create_file+0x24/0x270 [ 85.089574][ T490] cgroup_addrm_files+0x2e2/0x830 [ 85.094599][ T490] ? cgroup_show_path+0x3d0/0x3d0 [ 85.099601][ T490] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 85.104987][ T490] ? __radix_tree_replace+0xd0/0x250 [ 85.110252][ T490] ? idr_replace+0x138/0x150 [ 85.114835][ T490] ? idr_get_next+0x130/0x130 [ 85.119491][ T490] css_populate_dir+0x17a/0x400 [ 85.124411][ T490] cgroup_apply_control_enable+0x39c/0xf10 [ 85.130381][ T490] cgroup_subtree_control_write+0x6d3/0xd60 [ 85.136259][ T490] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 85.142490][ T490] ? kfree+0xc2/0x560 [ 85.146456][ T490] ? __kasan_slab_free+0x129/0x170 [ 85.151579][ T490] cgroup_file_write+0x272/0x7c0 [ 85.156607][ T490] ? __kasan_check_write+0x14/0x20 [ 85.161832][ T490] ? cgroup_file_poll+0xd0/0xd0 [ 85.166682][ T490] ? __mutex_lock_slowpath+0x10/0x10 [ 85.172082][ T490] ? cgroup_file_poll+0xd0/0xd0 [ 85.177027][ T490] kernfs_fop_write_iter+0x2d5/0x450 [ 85.182482][ T490] new_sync_write+0x358/0x6e0 [ 85.187134][ T490] ? new_sync_read+0x6e0/0x6e0 [ 85.191934][ T490] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 85.198950][ T490] ? rw_verify_area+0xc3/0x2b0 [ 85.203705][ T490] vfs_write+0x4f5/0x750 [ 85.207925][ T490] ksys_write+0x111/0x210 [ 85.212232][ T490] ? __ia32_sys_read+0xa0/0xa0 [ 85.217064][ T490] ? debug_smp_processor_id+0x17/0x20 [ 85.222445][ T490] ? fpregs_assert_state_consistent+0x49/0xb0 [ 85.228495][ T490] __x64_sys_write+0x6e/0xb0 [ 85.233277][ T490] ? syscall_exit_to_user_mode+0x27/0x160 [ 85.239317][ T490] do_syscall_64+0x32/0x80 [ 85.243831][ T490] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 85.249698][ T490] RIP: 0033:0x7fabe7ed7ce9 [ 85.254319][ T490] 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 [ 85.274523][ T490] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.283090][ T490] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 85.291962][ T490] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 85.300199][ T490] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 85.309516][ T490] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 85.317652][ T490] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000003 [ 85.326072][ T490] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 85.337644][ T422] ------------[ cut here ]------------ [ 85.343342][ T422] WARNING: CPU: 0 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 85.352900][ T422] Modules linked in: [ 85.356968][ T422] CPU: 0 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 85.367211][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.377745][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 85.383478][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 85.403330][ T422] RSP: 0018:ffffc90000767c28 EFLAGS: 00010286 [ 85.409442][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecf8c RCX: 0000000000000002 [ 85.417514][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 85.425550][ T422] RBP: ffffc90000767ce8 R08: 0000000000000000 R09: 0000000000000008 [ 85.433613][ T422] R10: fffff520000ecf78 R11: ffff8881f7055bc0 R12: ffffc90000767c80 [ 85.441591][ T422] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810d603b00 [ 85.449995][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 85.458920][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.465484][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506b0 [ 85.473466][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.483285][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.491258][ T422] Call Trace: [ 85.494800][ T422] ? clone_private_mount+0x300/0x300 [ 85.500081][ T422] ? change_mnt_propagation+0x5df/0xd40 [ 85.505629][ T422] namespace_unlock+0x331/0x3e0 [ 85.510518][ T422] ? kern_unmount+0xb0/0xb0 [ 85.515012][ T422] ? unhash_mnt+0x3b0/0x3b0 [ 85.519819][ T422] path_umount+0x665/0x1170 [ 85.524427][ T422] ? __detach_mounts+0x210/0x210 [ 85.529380][ T422] ? user_path_at_empty+0xa2/0xf0 [ 85.534398][ T422] __x64_sys_umount+0xfb/0x120 [ 85.539432][ T422] ? path_umount+0x1170/0x1170 [ 85.544354][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 85.550506][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 85.556206][ T422] do_syscall_64+0x32/0x80 [ 85.560621][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 85.566495][ T422] RIP: 0033:0x7fabe7ed9097 [ 85.570928][ T422] 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 [ 85.590538][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 85.598941][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 85.606993][ T422] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 85.615075][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 85.623579][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 85.631587][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000004 [ 85.639653][ T422] ---[ end trace a21a7dc9bb3febe5 ]--- [ 85.645173][ T422] ------------[ cut here ]------------ [ 85.650775][ T422] WARNING: CPU: 1 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 85.659688][ T422] Modules linked in: [ 85.663563][ T422] CPU: 1 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 85.673696][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.684100][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 85.689747][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 85.709462][ T422] RSP: 0018:ffffc90000767cf0 EFLAGS: 00010282 [ 85.715503][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecfa5 RCX: 0000000000000002 [ 85.723498][ C1] ------------[ cut here ]------------ [ 85.723510][ C1] percpu ref (css_release) <= 0 (-1) after switching to atomic [ 85.723549][ C1] WARNING: CPU: 1 PID: 422 at lib/percpu-refcount.c:194 percpu_ref_switch_to_atomic_rcu+0x378/0x4c0 [ 85.723550][ C1] Modules linked in: [ 85.723558][ C1] CPU: 1 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 85.723561][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.723565][ C1] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x378/0x4c0 [ 85.723570][ C1] Code: 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2c 01 00 00 49 8b 77 e8 4c 89 e2 48 c7 c7 00 ea be 84 e8 48 10 e3 01 <0f> 0b e9 06 fe ff ff e8 8c 50 73 ff e9 9d fe ff ff 48 c7 c7 04 7b [ 85.723572][ C1] RSP: 0018:ffffc90000150db0 EFLAGS: 00010286 [ 85.723576][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 85.723578][ C1] RDX: 0000000000000103 RSI: 0000000000000004 RDI: fffff5200002a1a8 [ 85.723580][ C1] RBP: ffffc90000150df8 R08: 0000000000000001 R09: ffff8881f71274cb [ 85.723583][ C1] R10: ffffed103ee24e99 R11: 0000000000000001 R12: ffffffffffffffff [ 85.723585][ C1] R13: 0000607e08c3db30 R14: 0000000000000007 R15: ffff88810d3033a0 [ 85.723588][ C1] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 85.723594][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.723597][ C1] CR2: 00007fabe7f4e350 CR3: 0000000116a99000 CR4: 00000000003506a0 [ 85.723598][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.723600][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.723602][ C1] Call Trace: [ 85.723603][ C1] [ 85.723611][ C1] rcu_do_batch+0x418/0xbc0 [ 85.723615][ C1] ? rcu_gp_kthread+0x26c0/0x26c0 [ 85.723620][ C1] ? call_timer_fn+0x1e0/0x1e0 [ 85.723627][ C1] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 85.723630][ C1] rcu_core+0x622/0xb70 [ 85.723634][ C1] rcu_core_si+0x9/0x10 [ 85.723636][ C1] __do_softirq+0x1c2/0x6cb [ 85.723640][ C1] asm_call_irq_on_stack+0xf/0x20 [ 85.723641][ C1] [ 85.723648][ C1] do_softirq_own_stack+0x61/0x80 [ 85.723655][ C1] irq_exit_rcu+0x17d/0x1a0 [ 85.723661][ C1] sysvec_apic_timer_interrupt+0x3f/0xe0 [ 85.723663][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 85.723669][ C1] RIP: 0010:console_unlock+0x556/0x830 [ 85.723672][ C1] Code: 84 c0 74 08 3c 01 0f 8e 86 02 00 00 41 0f b7 47 48 a8 10 0f 85 69 fe ff ff e9 a0 fd ff ff e8 91 2d 00 00 ff b5 d0 fe ff ff 9d 04 fc ff ff 48 8b 85 b8 fe ff ff 48 85 c0 74 0e 89 c2 48 c7 c6 [ 85.723674][ C1] RSP: 0018:ffffc90000767838 EFLAGS: 00000247 [ 85.723677][ C1] RAX: 0000000000000002 RBX: dffffc0000000000 RCX: 0000000000000000 [ 85.723679][ C1] RDX: 0000000000000003 RSI: 0000000000000004 RDI: 0000000000000001 [ 85.723681][ C1] RBP: ffffc900007679a0 R08: 0000000000000001 R09: 0000000000000003 [ 85.723683][ C1] R10: fffff520000ecefa R11: 3966666666312052 R12: 0000000000000000 [ 85.723686][ C1] R13: ffffc90000767898 R14: ffffc90000767978 R15: 0000000000000000 [ 85.723691][ C1] ? devkmsg_read+0x610/0x610 [ 85.723695][ C1] ? __kasan_check_write+0x14/0x20 [ 85.723698][ C1] ? _raw_spin_lock_irqsave+0x8c/0x130 [ 85.723702][ C1] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 85.723707][ C1] ? down_trylock+0x58/0x80 [ 85.723709][ C1] ? wake_up_klogd+0xad/0x100 [ 85.723712][ C1] vprintk_emit+0xc6/0x1a0 [ 85.723717][ C1] ? mntput_no_expire+0x4f4/0x980 [ 85.723719][ C1] vprintk_default+0x18/0x20 [ 85.723722][ C1] vprintk_func+0x5c/0x1f0 [ 85.723726][ C1] printk+0xad/0xde [ 85.723729][ C1] ? pm_suspend.cold+0x57/0x57 [ 85.723733][ C1] __show_regs+0xd2/0x6a0 [ 85.723735][ C1] ? mntput_no_expire+0x4f4/0x980 [ 85.723739][ C1] ? dump_stack_print_info+0xb2/0xe0 [ 85.723742][ C1] ? mntput_no_expire+0x4f4/0x980 [ 85.723744][ C1] show_regs+0x36/0x50 [ 85.723748][ C1] __warn+0xc3/0x1b0 [ 85.723750][ C1] ? mntput_no_expire+0x4f4/0x980 [ 85.723753][ C1] report_bug+0x15d/0x1c0 [ 85.723756][ C1] handle_bug+0x40/0x70 [ 85.723759][ C1] exc_invalid_op+0x19/0x50 [ 85.723761][ C1] asm_exc_invalid_op+0x12/0x20 [ 85.723764][ C1] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 85.723767][ C1] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 85.723768][ C1] RSP: 0018:ffffc90000767cf0 EFLAGS: 00010282 [ 85.723771][ C1] RAX: 0000000000000000 RBX: 1ffff920000ecfa5 RCX: 0000000000000002 [ 85.723773][ C1] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 85.723775][ C1] RBP: ffffc90000767db0 R08: 0000000000000000 R09: 0000000000000008 [ 85.723777][ C1] R10: fffff520000ecf91 R11: ffff8881f7055bc0 R12: ffffc90000767d48 [ 85.723779][ C1] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d603b00 [ 85.723784][ C1] ? namespace_unlock+0x331/0x3e0 [ 85.723787][ C1] ? clone_private_mount+0x300/0x300 [ 85.723791][ C1] ? dput+0xac/0x8a0 [ 85.723794][ C1] path_umount+0x6a3/0x1170 [ 85.723798][ C1] ? __detach_mounts+0x210/0x210 [ 85.723802][ C1] ? user_path_at_empty+0xa2/0xf0 [ 85.723805][ C1] __x64_sys_umount+0xfb/0x120 [ 85.723808][ C1] ? path_umount+0x1170/0x1170 [ 85.723814][ C1] ? fpregs_assert_state_consistent+0x49/0xb0 [ 85.723817][ C1] ? exit_to_user_mode_prepare+0x30/0xe0 [ 85.723821][ C1] do_syscall_64+0x32/0x80 [ 85.723824][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 85.723827][ C1] RIP: 0033:0x7fabe7ed9097 [ 85.723831][ C1] 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 [ 85.723833][ C1] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 85.723836][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 85.723838][ C1] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 85.723840][ C1] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 85.723842][ C1] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 85.723844][ C1] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000004 [ 85.723847][ C1] ---[ end trace a21a7dc9bb3febe6 ]--- [ 86.346818][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 86.354780][ T422] RBP: ffffc90000767db0 R08: 0000000000000000 R09: 0000000000000008 [ 86.362735][ T422] R10: fffff520000ecf91 R11: ffff8881f7055bc0 R12: ffffc90000767d48 [ 86.370690][ T422] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d603b00 [ 86.378729][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 86.387717][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.394284][ T422] CR2: 00007fabe7f4e350 CR3: 0000000116a99000 CR4: 00000000003506a0 [ 86.402235][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.410186][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.418134][ T422] Call Trace: [ 86.421436][ T422] ? namespace_unlock+0x331/0x3e0 [ 86.426453][ T422] ? clone_private_mount+0x300/0x300 [ 86.431723][ T422] ? dput+0xac/0x8a0 [ 86.435780][ T422] path_umount+0x6a3/0x1170 [ 86.440262][ T422] ? __detach_mounts+0x210/0x210 [ 86.445171][ T422] ? user_path_at_empty+0xa2/0xf0 [ 86.450177][ T422] __x64_sys_umount+0xfb/0x120 [ 86.454932][ T422] ? path_umount+0x1170/0x1170 [ 86.459793][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 86.465866][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 86.471934][ T422] do_syscall_64+0x32/0x80 [ 86.476358][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 86.482297][ T422] RIP: 0033:0x7fabe7ed9097 [ 86.486691][ T422] 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 [ 86.506294][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 86.515382][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 86.523351][ T422] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 86.531315][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 86.539567][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 86.547624][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000004 [ 86.555590][ T422] ---[ end trace a21a7dc9bb3febe7 ]--- [ 86.562698][ T489] FAULT_INJECTION: forcing a failure. [ 86.562698][ T489] name failslab, interval 1, probability 0, space 0, times 0 [ 86.575459][ T489] CPU: 0 PID: 489 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 86.585606][ T489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.595737][ T489] Call Trace: [ 86.599009][ T489] dump_stack+0x84/0xad [ 86.603363][ T489] should_fail.cold+0x5/0x1f [ 86.608126][ T489] ? find_next_bit+0x14/0x20 [ 86.612688][ T489] ? cgroup_exit_cftypes+0x150/0x150 [ 86.618027][ T489] ? percpu_ref_init+0xd1/0x380 [ 86.622849][ T489] __should_failslab+0xd8/0x120 [ 86.627668][ T489] should_failslab+0x9/0x20 [ 86.632157][ T489] kmem_cache_alloc_trace+0x3d/0x330 [ 86.637495][ T489] ? cgroup_exit_cftypes+0x150/0x150 [ 86.642838][ T489] percpu_ref_init+0xd1/0x380 [ 86.647484][ T489] cgroup_apply_control_enable+0x486/0xf10 [ 86.653253][ T489] cgroup_subtree_control_write+0x6d3/0xd60 [ 86.659119][ T489] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 86.665257][ T489] ? kfree+0xc2/0x560 [ 86.669292][ T489] ? __kasan_slab_free+0x129/0x170 [ 86.674371][ T489] cgroup_file_write+0x272/0x7c0 [ 86.679301][ T489] ? __kasan_check_write+0x14/0x20 [ 86.684379][ T489] ? cgroup_file_poll+0xd0/0xd0 [ 86.689197][ T489] ? __mutex_lock_slowpath+0x10/0x10 [ 86.694447][ T489] ? cgroup_file_poll+0xd0/0xd0 [ 86.699392][ T489] kernfs_fop_write_iter+0x2d5/0x450 [ 86.705457][ T489] new_sync_write+0x358/0x6e0 [ 86.710120][ T489] ? new_sync_read+0x6e0/0x6e0 [ 86.714946][ T489] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 86.721689][ T489] ? rw_verify_area+0xc3/0x2b0 [ 86.726431][ T489] vfs_write+0x4f5/0x750 [ 86.730643][ T489] ksys_write+0x111/0x210 [ 86.734959][ T489] ? __ia32_sys_read+0xa0/0xa0 [ 86.741688][ T489] ? debug_smp_processor_id+0x17/0x20 [ 86.747040][ T489] ? fpregs_assert_state_consistent+0x49/0xb0 [ 86.753174][ T489] __x64_sys_write+0x6e/0xb0 [ 86.757877][ T489] ? syscall_exit_to_user_mode+0x27/0x160 [ 86.763634][ T489] do_syscall_64+0x32/0x80 [ 86.768372][ T489] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 86.774333][ T489] RIP: 0033:0x7fabe7ed7ce9 [ 86.778814][ T489] 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 [ 86.798484][ T489] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.807081][ T489] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 86.815250][ T489] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 86.823197][ T489] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 86.831142][ T489] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 86.839099][ T489] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000e [ 86.888389][ T488] FAULT_INJECTION: forcing a failure. [ 86.888389][ T488] name failslab, interval 1, probability 0, space 0, times 0 [ 86.901366][ T488] CPU: 0 PID: 488 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 86.911413][ T488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.921855][ T488] Call Trace: [ 86.925339][ T488] dump_stack+0x84/0xad [ 86.929580][ T488] should_fail.cold+0x5/0x1f [ 86.934149][ T488] ? find_next_bit+0x14/0x20 [ 86.938746][ T488] ? cgroup_exit_cftypes+0x150/0x150 [ 86.944023][ T488] ? percpu_ref_init+0xd1/0x380 [ 86.948871][ T488] __should_failslab+0xd8/0x120 [ 86.953724][ T488] should_failslab+0x9/0x20 [ 86.958235][ T488] kmem_cache_alloc_trace+0x3d/0x330 [ 86.963522][ T488] ? cgroup_exit_cftypes+0x150/0x150 [ 86.969316][ T488] percpu_ref_init+0xd1/0x380 [ 86.974035][ T488] cgroup_apply_control_enable+0x486/0xf10 [ 86.979833][ T488] cgroup_subtree_control_write+0x6d3/0xd60 [ 86.985819][ T488] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 86.992047][ T488] ? kfree+0xc2/0x560 [ 86.996014][ T488] ? __kasan_slab_free+0x129/0x170 [ 87.001119][ T488] cgroup_file_write+0x272/0x7c0 [ 87.006224][ T488] ? __kasan_check_write+0x14/0x20 [ 87.012628][ T488] ? cgroup_file_poll+0xd0/0xd0 [ 87.017993][ T488] ? __mutex_lock_slowpath+0x10/0x10 [ 87.023744][ T488] ? cgroup_file_poll+0xd0/0xd0 [ 87.028592][ T488] kernfs_fop_write_iter+0x2d5/0x450 [ 87.034383][ T488] new_sync_write+0x358/0x6e0 [ 87.039134][ T488] ? new_sync_read+0x6e0/0x6e0 [ 87.043894][ T488] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 87.050663][ T488] ? rw_verify_area+0xc3/0x2b0 [ 87.055423][ T488] vfs_write+0x4f5/0x750 [ 87.059820][ T488] ksys_write+0x111/0x210 [ 87.064414][ T488] ? __ia32_sys_read+0xa0/0xa0 [ 87.069181][ T488] ? debug_smp_processor_id+0x17/0x20 [ 87.074532][ T488] ? fpregs_assert_state_consistent+0x49/0xb0 [ 87.080869][ T488] __x64_sys_write+0x6e/0xb0 [ 87.085647][ T488] ? syscall_exit_to_user_mode+0x27/0x160 [ 87.091723][ T488] do_syscall_64+0x32/0x80 [ 87.096118][ T488] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 87.102002][ T488] RIP: 0033:0x7fabe7ed7ce9 [ 87.106477][ T488] 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 [ 87.126259][ T488] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 87.134824][ T488] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 87.142876][ T488] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 87.150825][ T488] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 87.159034][ T488] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 87.167144][ T488] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000006 [ 87.208355][ T492] FAULT_INJECTION: forcing a failure. [ 87.208355][ T492] name failslab, interval 1, probability 0, space 0, times 0 [ 87.221569][ T492] CPU: 1 PID: 492 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 87.231674][ T492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 87.241720][ T492] Call Trace: [ 87.245118][ T492] dump_stack+0x84/0xad [ 87.249249][ T492] should_fail.cold+0x5/0x1f [ 87.253989][ T492] ? pids_css_alloc+0x3c/0x130 [ 87.258728][ T492] __should_failslab+0xd8/0x120 [ 87.263559][ T492] should_failslab+0x9/0x20 [ 87.268127][ T492] kmem_cache_alloc_trace+0x3d/0x330 [ 87.273390][ T492] pids_css_alloc+0x3c/0x130 [ 87.277977][ T492] cgroup_apply_control_enable+0x432/0xf10 [ 87.283776][ T492] cgroup_subtree_control_write+0x6d3/0xd60 [ 87.289646][ T492] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 87.295685][ T492] ? kfree+0xc2/0x560 [ 87.299643][ T492] ? __kasan_slab_free+0x129/0x170 [ 87.304728][ T492] cgroup_file_write+0x272/0x7c0 [ 87.309638][ T492] ? __kasan_check_write+0x14/0x20 [ 87.314719][ T492] ? cgroup_file_poll+0xd0/0xd0 [ 87.319558][ T492] ? __mutex_lock_slowpath+0x10/0x10 [ 87.324815][ T492] ? cgroup_file_poll+0xd0/0xd0 [ 87.329656][ T492] kernfs_fop_write_iter+0x2d5/0x450 [ 87.334931][ T492] new_sync_write+0x358/0x6e0 [ 87.339693][ T492] ? new_sync_read+0x6e0/0x6e0 [ 87.344516][ T492] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 87.351404][ T492] ? rw_verify_area+0xc3/0x2b0 [ 87.356224][ T492] vfs_write+0x4f5/0x750 [ 87.360459][ T492] ksys_write+0x111/0x210 [ 87.364863][ T492] ? __ia32_sys_read+0xa0/0xa0 [ 87.369836][ T492] ? debug_smp_processor_id+0x17/0x20 [ 87.375354][ T492] ? fpregs_assert_state_consistent+0x49/0xb0 [ 87.381447][ T492] __x64_sys_write+0x6e/0xb0 [ 87.386019][ T492] ? syscall_exit_to_user_mode+0x27/0x160 [ 87.391721][ T492] do_syscall_64+0x32/0x80 [ 87.396123][ T492] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 87.401984][ T492] RIP: 0033:0x7fabe7ed7ce9 [ 87.406374][ T492] 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 [ 87.426051][ T492] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 87.434443][ T492] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 87.442391][ T492] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 87.450432][ T492] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 87.458383][ T492] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 87.466342][ T492] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000f [ 87.498346][ T495] FAULT_INJECTION: forcing a failure. [ 87.498346][ T495] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 87.511744][ T495] CPU: 1 PID: 495 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 87.521841][ T495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 87.531899][ T495] Call Trace: [ 87.535175][ T495] dump_stack+0x84/0xad [ 87.539309][ T495] should_fail.cold+0x5/0x1f [ 87.543889][ T495] ? kernfs_dop_revalidate+0x370/0x370 [ 87.549479][ T495] should_fail_alloc_page+0x74/0x90 [ 87.554917][ T495] __alloc_pages_nodemask+0x132/0x5d0 [ 87.560366][ T495] ? mutex_lock+0x79/0xd0 [ 87.564670][ T495] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 87.571407][ T495] ? delegate_show+0x200/0x200 [ 87.576159][ T495] ? _raw_spin_lock_irq+0x87/0x120 [ 87.581267][ T495] ? _raw_spin_lock+0x120/0x120 [ 87.586359][ T495] allocate_slab+0x367/0x4c0 [ 87.590926][ T495] ___slab_alloc.constprop.0+0x240/0x760 [ 87.596638][ T495] ? pids_css_alloc+0x3c/0x130 [ 87.601394][ T495] ? cgroup_show_path+0x3d0/0x3d0 [ 87.606517][ T495] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 87.611867][ T495] ? __radix_tree_replace+0xd0/0x250 [ 87.617133][ T495] ? pids_css_alloc+0x3c/0x130 [ 87.621868][ T495] ? pids_css_alloc+0x3c/0x130 [ 87.626630][ T495] kmem_cache_alloc_trace+0x2c6/0x330 [ 87.632084][ T495] pids_css_alloc+0x3c/0x130 [ 87.636652][ T495] cgroup_apply_control_enable+0x432/0xf10 [ 87.642462][ T495] cgroup_subtree_control_write+0x6d3/0xd60 [ 87.648513][ T495] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 87.654555][ T495] ? kfree+0xc2/0x560 [ 87.658513][ T495] ? __kasan_check_write+0x14/0x20 [ 87.663686][ T495] cgroup_file_write+0x272/0x7c0 [ 87.668770][ T495] ? __kasan_check_write+0x14/0x20 [ 87.673877][ T495] ? cgroup_file_poll+0xd0/0xd0 [ 87.678727][ T495] ? __mutex_lock_slowpath+0x10/0x10 [ 87.684166][ T495] ? cgroup_file_poll+0xd0/0xd0 [ 87.689079][ T495] kernfs_fop_write_iter+0x2d5/0x450 [ 87.694351][ T495] new_sync_write+0x358/0x6e0 [ 87.699111][ T495] ? new_sync_read+0x6e0/0x6e0 [ 87.703849][ T495] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 87.710581][ T495] ? rw_verify_area+0xc3/0x2b0 [ 87.715316][ T495] vfs_write+0x4f5/0x750 [ 87.719531][ T495] ksys_write+0x111/0x210 [ 87.723832][ T495] ? __ia32_sys_read+0xa0/0xa0 [ 87.728697][ T495] ? debug_smp_processor_id+0x17/0x20 [ 87.734255][ T495] ? fpregs_assert_state_consistent+0x49/0xb0 [ 87.740303][ T495] __x64_sys_write+0x6e/0xb0 [ 87.744976][ T495] ? syscall_exit_to_user_mode+0x27/0x160 [ 87.750755][ T495] do_syscall_64+0x32/0x80 [ 87.755142][ T495] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 87.761174][ T495] RIP: 0033:0x7fabe7ed7ce9 [ 87.765562][ T495] 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 [ 87.785292][ T495] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 87.793816][ T495] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 87.801942][ T495] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 87.809967][ T495] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 87.817998][ T495] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 87.825947][ T495] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000010 [ 87.836991][ T425] ------------[ cut here ]------------ [ 87.842498][ T425] WARNING: CPU: 1 PID: 425 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 87.851420][ T425] Modules linked in: [ 87.855302][ T425] CPU: 1 PID: 425 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 87.865361][ T425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 87.875525][ T425] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 87.881452][ T425] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 87.901246][ T425] RSP: 0018:ffffc900007c7c28 EFLAGS: 00010282 [ 87.907552][ T425] RAX: 0000000000000000 RBX: 1ffff920000f8f8c RCX: 0000000000000002 [ 87.915533][ T425] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 87.923492][ T425] RBP: ffffc900007c7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 87.931454][ T425] R10: fffff520000f8f78 R11: 0000000000000000 R12: ffffc900007c7c80 [ 87.939437][ T425] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810d603980 [ 87.947390][ T425] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 87.956443][ T425] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.963055][ T425] CR2: 00007ffc76d2fff8 CR3: 0000000118da0000 CR4: 00000000003506a0 [ 87.971021][ T425] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.978988][ T425] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.986937][ T425] Call Trace: [ 87.990217][ T425] ? clone_private_mount+0x300/0x300 [ 87.995486][ T425] ? change_mnt_propagation+0x5df/0xd40 [ 88.001043][ T425] namespace_unlock+0x331/0x3e0 [ 88.005956][ T425] ? kern_unmount+0xb0/0xb0 [ 88.010456][ T425] ? unhash_mnt+0x3b0/0x3b0 [ 88.014933][ T425] path_umount+0x665/0x1170 [ 88.019444][ T425] ? __detach_mounts+0x210/0x210 [ 88.024550][ T425] ? user_path_at_empty+0xa2/0xf0 [ 88.029578][ T425] __x64_sys_umount+0xfb/0x120 [ 88.034382][ T425] ? path_umount+0x1170/0x1170 [ 88.039242][ T425] ? fpregs_assert_state_consistent+0x49/0xb0 [ 88.045292][ T425] ? exit_to_user_mode_prepare+0x30/0xe0 [ 88.050925][ T425] do_syscall_64+0x32/0x80 [ 88.055322][ T425] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 88.061209][ T425] RIP: 0033:0x7fabe7ed9097 [ 88.065636][ T425] 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 [ 88.085366][ T425] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 88.093798][ T425] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 88.101865][ T425] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 88.109848][ T425] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 88.117825][ T425] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 88.125792][ T425] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000008 [ 88.133768][ T425] ---[ end trace a21a7dc9bb3febe8 ]--- [ 88.139579][ T425] ------------[ cut here ]------------ [ 88.145039][ T425] WARNING: CPU: 1 PID: 425 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 88.156149][ T425] Modules linked in: [ 88.160058][ T425] CPU: 1 PID: 425 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 88.170230][ T425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.180298][ T425] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 88.185919][ T425] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 88.205554][ T425] RSP: 0018:ffffc900007c7cf0 EFLAGS: 00010286 [ 88.211616][ T425] RAX: 0000000000000000 RBX: 1ffff920000f8fa5 RCX: 0000000000000002 [ 88.219587][ T425] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 88.227566][ T425] RBP: ffffc900007c7db0 R08: 0000000000000000 R09: 0000000000000008 [ 88.235624][ T425] R10: fffff520000f8f91 R11: 0000000000000000 R12: ffffc900007c7d48 [ 88.243592][ T425] R13: 00000000fffffffc R14: dffffc0000000000 R15: ffff88810d603980 [ 88.251658][ T425] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 88.260764][ T425] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.267326][ T425] CR2: 00007ffc76d2fff8 CR3: 0000000118da0000 CR4: 00000000003506a0 [ 88.275298][ T425] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.283268][ T425] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.291379][ T425] Call Trace: [ 88.294670][ T425] ? namespace_unlock+0x331/0x3e0 [ 88.299693][ T425] ? clone_private_mount+0x300/0x300 [ 88.305002][ T425] ? dput+0xac/0x8a0 [ 88.309081][ T425] path_umount+0x6a3/0x1170 [ 88.313620][ T425] ? __detach_mounts+0x210/0x210 [ 88.318609][ T425] ? user_path_at_empty+0xa2/0xf0 [ 88.323617][ T425] __x64_sys_umount+0xfb/0x120 [ 88.328398][ T425] ? path_umount+0x1170/0x1170 [ 88.333156][ T425] ? fpregs_assert_state_consistent+0x49/0xb0 [ 88.339226][ T425] ? exit_to_user_mode_prepare+0x30/0xe0 [ 88.344838][ T425] do_syscall_64+0x32/0x80 [ 88.349284][ T425] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 88.355154][ T425] RIP: 0033:0x7fabe7ed9097 [ 88.359657][ T425] 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 [ 88.379265][ T425] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 88.387664][ T425] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 88.395657][ T425] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 88.403652][ T425] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 88.411915][ T425] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 88.419969][ T425] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000008 [ 88.427940][ T425] ---[ end trace a21a7dc9bb3febe9 ]--- [ 88.434290][ T420] ------------[ cut here ]------------ [ 88.440488][ T420] WARNING: CPU: 0 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 88.449414][ T420] Modules linked in: [ 88.453288][ T420] CPU: 0 PID: 420 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 88.463809][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.473971][ T420] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 88.479692][ T420] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 88.501333][ T420] RSP: 0018:ffffc90000747c28 EFLAGS: 00010286 [ 88.507488][ T420] RAX: 0000000000000000 RBX: 1ffff920000e8f8c RCX: 0000000000000002 [ 88.516424][ T420] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 88.524678][ T420] RBP: ffffc90000747ce8 R08: 0000000000000000 R09: 0000000000000008 [ 88.532831][ T420] R10: fffff520000e8f78 R11: ffff8881f7055bc0 R12: ffffc90000747c80 [ 88.541045][ T420] R13: 00000000fffffffc R14: dffffc0000000000 R15: ffff88810bc90f00 [ 88.549213][ T420] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 88.558244][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.564846][ T420] CR2: 00007ffc76d2fff8 CR3: 0000000107efc000 CR4: 00000000003506b0 [ 88.573001][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.581250][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.589221][ T420] Call Trace: [ 88.592515][ T420] ? clone_private_mount+0x300/0x300 [ 88.597817][ T420] ? change_mnt_propagation+0x5df/0xd40 [ 88.603474][ T420] namespace_unlock+0x331/0x3e0 [ 88.608596][ T420] ? kern_unmount+0xb0/0xb0 [ 88.613094][ T420] ? unhash_mnt+0x3b0/0x3b0 [ 88.617658][ T420] path_umount+0x665/0x1170 [ 88.622169][ T420] ? __detach_mounts+0x210/0x210 [ 88.627639][ T420] ? user_path_at_empty+0xa2/0xf0 [ 88.632701][ T420] __x64_sys_umount+0xfb/0x120 [ 88.637447][ T420] ? path_umount+0x1170/0x1170 [ 88.642226][ T420] ? fpregs_assert_state_consistent+0x49/0xb0 [ 88.648465][ T420] ? exit_to_user_mode_prepare+0x30/0xe0 [ 88.654075][ T420] do_syscall_64+0x32/0x80 [ 88.658577][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 88.664448][ T420] RIP: 0033:0x7fabe7ed9097 [ 88.668866][ T420] 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 [ 88.688903][ T420] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 88.697290][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 88.705302][ T420] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 88.713358][ T420] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 88.721412][ T420] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 88.729668][ T420] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000a [ 88.737626][ T420] ---[ end trace a21a7dc9bb3febea ]--- [ 88.744677][ T420] ------------[ cut here ]------------ [ 88.750689][ T420] WARNING: CPU: 1 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 88.759928][ T420] Modules linked in: [ 88.763812][ T420] CPU: 1 PID: 420 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 88.773783][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.783946][ T420] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 88.789582][ T420] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 88.809488][ T420] RSP: 0018:ffffc90000747cf0 EFLAGS: 00010282 [ 88.815629][ T420] RAX: 0000000000000000 RBX: 1ffff920000e8fa5 RCX: 0000000000000002 [ 88.823786][ T420] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 88.831881][ T420] RBP: ffffc90000747db0 R08: 0000000000000000 R09: 0000000000000008 [ 88.840089][ T420] R10: fffff520000e8f91 R11: ffff8881f7055bc0 R12: ffffc90000747d48 [ 88.848174][ T420] R13: 00000000fffffffb R14: dffffc0000000000 R15: ffff88810bc90f00 [ 88.856131][ T420] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 88.865184][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.871777][ T420] CR2: 00007fabe7e8f47e CR3: 0000000107efc000 CR4: 00000000003506a0 [ 88.879754][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.887711][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.895698][ T420] Call Trace: [ 88.898987][ T420] ? namespace_unlock+0x331/0x3e0 [ 88.903993][ T420] ? clone_private_mount+0x300/0x300 [ 88.909280][ T420] ? dput+0xac/0x8a0 [ 88.913159][ T420] path_umount+0x6a3/0x1170 [ 88.917721][ T420] ? __detach_mounts+0x210/0x210 [ 88.922772][ T420] ? user_path_at_empty+0xa2/0xf0 [ 88.927791][ T420] __x64_sys_umount+0xfb/0x120 [ 88.932526][ T420] ? path_umount+0x1170/0x1170 [ 88.937265][ T420] ? fpregs_assert_state_consistent+0x49/0xb0 [ 88.943577][ T420] ? exit_to_user_mode_prepare+0x30/0xe0 [ 88.949297][ T420] do_syscall_64+0x32/0x80 [ 88.953690][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 88.959660][ T420] RIP: 0033:0x7fabe7ed9097 [ 88.964137][ T420] 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 [ 88.983814][ T420] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 88.992295][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 89.000339][ T420] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 89.008293][ T420] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 89.016391][ T420] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 89.024562][ T420] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000a [ 89.032544][ T420] ---[ end trace a21a7dc9bb3febeb ]--- [ 89.042251][ T496] FAULT_INJECTION: forcing a failure. [ 89.042251][ T496] name failslab, interval 1, probability 0, space 0, times 0 [ 89.055443][ T496] CPU: 0 PID: 496 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 89.066998][ T496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.077236][ T496] Call Trace: [ 89.080531][ T496] dump_stack+0x84/0xad [ 89.084674][ T496] should_fail.cold+0x5/0x1f [ 89.089272][ T496] ? find_next_bit+0x14/0x20 [ 89.094202][ T496] ? cgroup_exit_cftypes+0x150/0x150 [ 89.099607][ T496] ? percpu_ref_init+0xd1/0x380 [ 89.104532][ T496] __should_failslab+0xd8/0x120 [ 89.109383][ T496] should_failslab+0x9/0x20 [ 89.113864][ T496] kmem_cache_alloc_trace+0x3d/0x330 [ 89.119124][ T496] ? cgroup_exit_cftypes+0x150/0x150 [ 89.124412][ T496] percpu_ref_init+0xd1/0x380 [ 89.129061][ T496] cgroup_apply_control_enable+0x486/0xf10 [ 89.134901][ T496] cgroup_subtree_control_write+0x6d3/0xd60 [ 89.140780][ T496] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 89.148659][ T496] ? kfree+0xc2/0x560 [ 89.152899][ T496] ? __kasan_slab_free+0x129/0x170 [ 89.158003][ T496] cgroup_file_write+0x272/0x7c0 [ 89.162932][ T496] ? __kasan_check_write+0x14/0x20 [ 89.168042][ T496] ? cgroup_file_poll+0xd0/0xd0 [ 89.172972][ T496] ? __mutex_lock_slowpath+0x10/0x10 [ 89.178244][ T496] ? cgroup_file_poll+0xd0/0xd0 [ 89.183073][ T496] kernfs_fop_write_iter+0x2d5/0x450 [ 89.188336][ T496] new_sync_write+0x358/0x6e0 [ 89.193183][ T496] ? new_sync_read+0x6e0/0x6e0 [ 89.197943][ T496] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 89.204682][ T496] ? rw_verify_area+0xc3/0x2b0 [ 89.209670][ T496] vfs_write+0x4f5/0x750 [ 89.213924][ T496] ksys_write+0x111/0x210 [ 89.218326][ T496] ? __ia32_sys_read+0xa0/0xa0 [ 89.223115][ T496] ? debug_smp_processor_id+0x17/0x20 [ 89.228498][ T496] ? fpregs_assert_state_consistent+0x49/0xb0 [ 89.234544][ T496] __x64_sys_write+0x6e/0xb0 [ 89.239112][ T496] ? syscall_exit_to_user_mode+0x27/0x160 [ 89.244887][ T496] do_syscall_64+0x32/0x80 [ 89.249715][ T496] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 89.255667][ T496] RIP: 0033:0x7fabe7ed7ce9 [ 89.260106][ T496] 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 [ 89.280101][ T496] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 89.288583][ T496] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 89.296555][ T496] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 89.304501][ T496] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 89.312794][ T496] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 89.320750][ T496] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000008 [ 89.329961][ T22] audit: type=1400 audit(1648692698.540:162): avc: denied { unlink } for pid=141 comm="syslogd" name="messages.0" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 89.378417][ T497] FAULT_INJECTION: forcing a failure. [ 89.378417][ T497] name failslab, interval 1, probability 0, space 0, times 0 [ 89.391359][ T497] CPU: 1 PID: 497 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 89.401520][ T497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.411687][ T497] Call Trace: [ 89.415053][ T497] dump_stack+0x84/0xad [ 89.419606][ T497] should_fail.cold+0x5/0x1f [ 89.424318][ T497] ? find_next_bit+0x14/0x20 [ 89.428943][ T497] ? cgroup_exit_cftypes+0x150/0x150 [ 89.434988][ T497] ? percpu_ref_init+0xd1/0x380 [ 89.440426][ T497] __should_failslab+0xd8/0x120 [ 89.445621][ T497] should_failslab+0x9/0x20 [ 89.450441][ T497] kmem_cache_alloc_trace+0x3d/0x330 [ 89.455895][ T497] ? cgroup_exit_cftypes+0x150/0x150 [ 89.461286][ T497] percpu_ref_init+0xd1/0x380 [ 89.466071][ T497] cgroup_apply_control_enable+0x486/0xf10 [ 89.472178][ T497] cgroup_subtree_control_write+0x6d3/0xd60 [ 89.478172][ T497] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 89.484310][ T497] ? kfree+0xc2/0x560 [ 89.488356][ T497] ? __kasan_slab_free+0x129/0x170 [ 89.493450][ T497] cgroup_file_write+0x272/0x7c0 [ 89.498370][ T497] ? __kasan_check_write+0x14/0x20 [ 89.503718][ T497] ? cgroup_file_poll+0xd0/0xd0 [ 89.508558][ T497] ? __mutex_lock_slowpath+0x10/0x10 [ 89.513854][ T497] ? cgroup_file_poll+0xd0/0xd0 [ 89.518880][ T497] kernfs_fop_write_iter+0x2d5/0x450 [ 89.524248][ T497] new_sync_write+0x358/0x6e0 [ 89.529303][ T497] ? new_sync_read+0x6e0/0x6e0 [ 89.534511][ T497] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 89.541440][ T497] ? rw_verify_area+0xc3/0x2b0 [ 89.546268][ T497] vfs_write+0x4f5/0x750 [ 89.550511][ T497] ksys_write+0x111/0x210 [ 89.554825][ T497] ? __ia32_sys_read+0xa0/0xa0 [ 89.559661][ T497] ? debug_smp_processor_id+0x17/0x20 [ 89.565021][ T497] ? fpregs_assert_state_consistent+0x49/0xb0 [ 89.571443][ T497] __x64_sys_write+0x6e/0xb0 [ 89.576020][ T497] ? syscall_exit_to_user_mode+0x27/0x160 [ 89.581724][ T497] do_syscall_64+0x32/0x80 [ 89.586767][ T497] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 89.592746][ T497] RIP: 0033:0x7fabe7ed7ce9 [ 89.597164][ T497] 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 [ 89.616746][ T497] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 89.625139][ T497] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 89.633988][ T497] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 89.641933][ T497] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 89.649993][ T497] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 89.657953][ T497] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000011 [ 89.758236][ T491] FAULT_INJECTION: forcing a failure. [ 89.758236][ T491] name failslab, interval 1, probability 0, space 0, times 0 [ 89.771057][ T491] CPU: 0 PID: 491 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 89.781130][ T491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.791165][ T491] Call Trace: [ 89.794614][ T491] dump_stack+0x84/0xad [ 89.798748][ T491] should_fail.cold+0x5/0x1f [ 89.803321][ T491] ? find_next_bit+0x14/0x20 [ 89.808064][ T491] ? cgroup_exit_cftypes+0x150/0x150 [ 89.813340][ T491] ? percpu_ref_init+0xd1/0x380 [ 89.818373][ T491] __should_failslab+0xd8/0x120 [ 89.823289][ T491] should_failslab+0x9/0x20 [ 89.827869][ T491] kmem_cache_alloc_trace+0x3d/0x330 [ 89.833182][ T491] ? cgroup_exit_cftypes+0x150/0x150 [ 89.838472][ T491] percpu_ref_init+0xd1/0x380 [ 89.843258][ T491] cgroup_apply_control_enable+0x486/0xf10 [ 89.849046][ T491] cgroup_subtree_control_write+0x6d3/0xd60 [ 89.855075][ T491] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 89.861124][ T491] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 89.867020][ T491] cgroup_file_write+0x272/0x7c0 [ 89.872022][ T491] ? __kasan_check_write+0x14/0x20 [ 89.877173][ T491] ? cgroup_file_poll+0xd0/0xd0 [ 89.882000][ T491] ? __mutex_lock_slowpath+0x10/0x10 [ 89.887278][ T491] ? cgroup_file_poll+0xd0/0xd0 [ 89.892107][ T491] kernfs_fop_write_iter+0x2d5/0x450 [ 89.897386][ T491] new_sync_write+0x358/0x6e0 [ 89.902062][ T491] ? new_sync_read+0x6e0/0x6e0 [ 89.906810][ T491] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 89.913554][ T491] ? rw_verify_area+0xc3/0x2b0 [ 89.918309][ T491] vfs_write+0x4f5/0x750 [ 89.922527][ T491] ksys_write+0x111/0x210 [ 89.926842][ T491] ? __ia32_sys_read+0xa0/0xa0 [ 89.931583][ T491] ? debug_smp_processor_id+0x17/0x20 [ 89.937892][ T491] ? fpregs_assert_state_consistent+0x49/0xb0 [ 89.944024][ T491] __x64_sys_write+0x6e/0xb0 [ 89.948672][ T491] ? syscall_exit_to_user_mode+0x27/0x160 [ 89.954497][ T491] do_syscall_64+0x32/0x80 [ 89.959119][ T491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 89.965190][ T491] RIP: 0033:0x7fabe7ed7ce9 [ 89.969610][ T491] 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 [ 89.989813][ T491] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 89.998296][ T491] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 90.006255][ T491] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 90.014298][ T491] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 90.022627][ T491] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 90.030590][ T491] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000004 [ 90.040727][ T422] ------------[ cut here ]------------ [ 90.046193][ T422] WARNING: CPU: 1 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 90.055167][ T422] Modules linked in: [ 90.059110][ T422] CPU: 1 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 90.070136][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.080301][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 90.085995][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 90.105866][ T422] RSP: 0018:ffffc90000767c28 EFLAGS: 00010282 [ 90.112123][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecf8c RCX: 0000000000000002 [ 90.120567][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 90.128809][ T422] RBP: ffffc90000767ce8 R08: 0000000000000000 R09: 0000000000000008 [ 90.136958][ T422] R10: fffff520000ecf78 R11: 0000000000000000 R12: ffffc90000767c80 [ 90.145024][ T422] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d602000 [ 90.153085][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 90.162039][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.168640][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506a0 [ 90.176809][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.184795][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.192799][ T422] Call Trace: [ 90.196074][ T422] ? clone_private_mount+0x300/0x300 [ 90.201361][ T422] ? change_mnt_propagation+0x5df/0xd40 [ 90.206904][ T422] namespace_unlock+0x331/0x3e0 [ 90.211768][ T422] ? kern_unmount+0xb0/0xb0 [ 90.216269][ T422] ? unhash_mnt+0x3b0/0x3b0 [ 90.220878][ T422] path_umount+0x665/0x1170 [ 90.225456][ T422] ? __detach_mounts+0x210/0x210 [ 90.230437][ T422] ? user_path_at_empty+0xa2/0xf0 [ 90.235529][ T422] __x64_sys_umount+0xfb/0x120 [ 90.240428][ T422] ? path_umount+0x1170/0x1170 [ 90.245422][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 90.252398][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 90.258669][ T422] do_syscall_64+0x32/0x80 [ 90.263080][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 90.269113][ T422] RIP: 0033:0x7fabe7ed9097 [ 90.273677][ T422] 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 [ 90.293503][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 90.305435][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 90.313514][ T422] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 90.322319][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 90.330504][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 90.339402][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000005 [ 90.349045][ T422] ---[ end trace a21a7dc9bb3febec ]--- [ 90.354684][ T422] ------------[ cut here ]------------ [ 90.360455][ T422] WARNING: CPU: 0 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 90.369585][ T422] Modules linked in: [ 90.373905][ T422] CPU: 0 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 90.384198][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.394828][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 90.400679][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 90.420428][ T422] RSP: 0018:ffffc90000767cf0 EFLAGS: 00010282 [ 90.426611][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecfa5 RCX: 0000000000000002 [ 90.434646][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 90.442840][ T422] RBP: ffffc90000767db0 R08: 0000000000000000 R09: 0000000000000008 [ 90.451164][ T422] R10: fffff520000ecf91 R11: 0000000000000000 R12: ffffc90000767d48 [ 90.460081][ T422] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810d602000 [ 90.468406][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 90.477509][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.484443][ T422] CR2: 00007fabe7f4e350 CR3: 0000000116a99000 CR4: 00000000003506b0 [ 90.492539][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.500732][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.508985][ T422] Call Trace: [ 90.512566][ T422] ? namespace_unlock+0x331/0x3e0 [ 90.517676][ T422] ? clone_private_mount+0x300/0x300 [ 90.523288][ T422] ? dput+0xac/0x8a0 [ 90.527230][ T422] path_umount+0x6a3/0x1170 [ 90.532256][ T422] ? __detach_mounts+0x210/0x210 [ 90.537393][ T422] ? user_path_at_empty+0xa2/0xf0 [ 90.545387][ T422] __x64_sys_umount+0xfb/0x120 [ 90.550300][ T422] ? path_umount+0x1170/0x1170 [ 90.555536][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 90.562694][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 90.568771][ T422] do_syscall_64+0x32/0x80 [ 90.573216][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 90.579311][ T422] RIP: 0033:0x7fabe7ed9097 [ 90.583714][ T422] 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 [ 90.604589][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 90.613695][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 90.621684][ T422] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 90.629691][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 90.639080][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 90.647244][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000005 [ 90.655232][ T422] ---[ end trace a21a7dc9bb3febed ]--- [ 90.661138][ T499] FAULT_INJECTION: forcing a failure. [ 90.661138][ T499] name failslab, interval 1, probability 0, space 0, times 0 [ 90.674327][ T499] CPU: 1 PID: 499 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 90.684201][ T499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.694252][ T499] Call Trace: [ 90.697527][ T499] dump_stack+0x84/0xad [ 90.701659][ T499] should_fail.cold+0x5/0x1f [ 90.706254][ T499] ? find_next_bit+0x14/0x20 [ 90.710840][ T499] ? cgroup_exit_cftypes+0x150/0x150 [ 90.716122][ T499] ? percpu_ref_init+0xd1/0x380 [ 90.721034][ T499] __should_failslab+0xd8/0x120 [ 90.725857][ T499] should_failslab+0x9/0x20 [ 90.730608][ T499] kmem_cache_alloc_trace+0x3d/0x330 [ 90.735874][ T499] ? cgroup_exit_cftypes+0x150/0x150 [ 90.741136][ T499] percpu_ref_init+0xd1/0x380 [ 90.745796][ T499] cgroup_apply_control_enable+0x486/0xf10 [ 90.751592][ T499] cgroup_subtree_control_write+0x6d3/0xd60 [ 90.757498][ T499] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 90.763544][ T499] ? kfree+0xc2/0x560 [ 90.767516][ T499] ? __kasan_slab_free+0x129/0x170 [ 90.772782][ T499] cgroup_file_write+0x272/0x7c0 [ 90.777719][ T499] ? __kasan_check_write+0x14/0x20 [ 90.782814][ T499] ? cgroup_file_poll+0xd0/0xd0 [ 90.787660][ T499] ? __mutex_lock_slowpath+0x10/0x10 [ 90.793900][ T499] ? cgroup_file_poll+0xd0/0xd0 [ 90.798845][ T499] kernfs_fop_write_iter+0x2d5/0x450 [ 90.804126][ T499] new_sync_write+0x358/0x6e0 [ 90.808828][ T499] ? new_sync_read+0x6e0/0x6e0 [ 90.813571][ T499] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 90.820313][ T499] ? rw_verify_area+0xc3/0x2b0 [ 90.825052][ T499] vfs_write+0x4f5/0x750 [ 90.829268][ T499] ksys_write+0x111/0x210 [ 90.833570][ T499] ? __ia32_sys_read+0xa0/0xa0 [ 90.838467][ T499] ? debug_smp_processor_id+0x17/0x20 [ 90.843900][ T499] ? fpregs_assert_state_consistent+0x49/0xb0 [ 90.849954][ T499] __x64_sys_write+0x6e/0xb0 [ 90.854524][ T499] ? syscall_exit_to_user_mode+0x27/0x160 [ 90.860328][ T499] do_syscall_64+0x32/0x80 [ 90.864720][ T499] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 90.870585][ T499] RIP: 0033:0x7fabe7ed7ce9 [ 90.875053][ T499] 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 [ 90.894636][ T499] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 90.903406][ T499] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 90.911380][ T499] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 90.919328][ T499] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 90.927277][ T499] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 90.935246][ T499] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000009 [ 90.978236][ T501] FAULT_INJECTION: forcing a failure. [ 90.978236][ T501] name failslab, interval 1, probability 0, space 0, times 0 [ 90.991108][ T501] CPU: 0 PID: 501 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 91.001092][ T501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.011248][ T501] Call Trace: [ 91.014523][ T501] dump_stack+0x84/0xad [ 91.018846][ T501] should_fail.cold+0x5/0x1f [ 91.023415][ T501] ? find_next_bit+0x14/0x20 [ 91.027996][ T501] ? cgroup_exit_cftypes+0x150/0x150 [ 91.033545][ T501] ? percpu_ref_init+0xd1/0x380 [ 91.038395][ T501] __should_failslab+0xd8/0x120 [ 91.043225][ T501] should_failslab+0x9/0x20 [ 91.047723][ T501] kmem_cache_alloc_trace+0x3d/0x330 [ 91.053188][ T501] ? cgroup_exit_cftypes+0x150/0x150 [ 91.058451][ T501] percpu_ref_init+0xd1/0x380 [ 91.063104][ T501] cgroup_apply_control_enable+0x486/0xf10 [ 91.069164][ T501] cgroup_subtree_control_write+0x6d3/0xd60 [ 91.075431][ T501] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 91.081567][ T501] ? kfree+0xc2/0x560 [ 91.085532][ T501] ? __kasan_slab_free+0x129/0x170 [ 91.090635][ T501] cgroup_file_write+0x272/0x7c0 [ 91.095632][ T501] ? __kasan_check_write+0x14/0x20 [ 91.100833][ T501] ? cgroup_file_poll+0xd0/0xd0 [ 91.106039][ T501] ? __mutex_lock_slowpath+0x10/0x10 [ 91.111569][ T501] ? cgroup_file_poll+0xd0/0xd0 [ 91.116482][ T501] kernfs_fop_write_iter+0x2d5/0x450 [ 91.121740][ T501] new_sync_write+0x358/0x6e0 [ 91.126410][ T501] ? new_sync_read+0x6e0/0x6e0 [ 91.131148][ T501] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 91.137882][ T501] ? rw_verify_area+0xc3/0x2b0 [ 91.142624][ T501] vfs_write+0x4f5/0x750 [ 91.146857][ T501] ksys_write+0x111/0x210 [ 91.151269][ T501] ? __ia32_sys_read+0xa0/0xa0 [ 91.156014][ T501] ? debug_smp_processor_id+0x17/0x20 [ 91.161358][ T501] ? fpregs_assert_state_consistent+0x49/0xb0 [ 91.167774][ T501] __x64_sys_write+0x6e/0xb0 [ 91.172348][ T501] ? syscall_exit_to_user_mode+0x27/0x160 [ 91.178067][ T501] do_syscall_64+0x32/0x80 [ 91.182549][ T501] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 91.188436][ T501] RIP: 0033:0x7fabe7ed7ce9 [ 91.192843][ T501] 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 [ 91.212711][ T501] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 91.221115][ T501] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 91.230030][ T501] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 91.238128][ T501] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 91.246191][ T501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 91.255536][ T501] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000005 [ 91.266394][ T422] ------------[ cut here ]------------ [ 91.271975][ T422] WARNING: CPU: 1 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 91.281100][ T422] Modules linked in: [ 91.285111][ T422] CPU: 1 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 91.297537][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.307893][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 91.313577][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 91.333486][ T422] RSP: 0018:ffffc90000767c28 EFLAGS: 00010282 [ 91.339738][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecf8c RCX: 0000000000000002 [ 91.347715][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 91.356021][ T422] RBP: ffffc90000767ce8 R08: 0000000000000000 R09: 0000000000000008 [ 91.364010][ T422] R10: fffff520000ecf78 R11: ffff8881f7155bc0 R12: ffffc90000767c80 [ 91.372084][ T422] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d686000 [ 91.380632][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 91.390017][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.396766][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506a0 [ 91.404950][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.413125][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.421547][ T422] Call Trace: [ 91.426653][ T422] ? clone_private_mount+0x300/0x300 [ 91.432048][ T422] ? change_mnt_propagation+0x5df/0xd40 [ 91.437621][ T422] namespace_unlock+0x331/0x3e0 [ 91.444755][ T422] ? kern_unmount+0xb0/0xb0 [ 91.449438][ T422] ? unhash_mnt+0x3b0/0x3b0 [ 91.453948][ T422] path_umount+0x665/0x1170 [ 91.458489][ T422] ? __detach_mounts+0x210/0x210 [ 91.463544][ T422] ? user_path_at_empty+0xa2/0xf0 [ 91.468588][ T422] __x64_sys_umount+0xfb/0x120 [ 91.473806][ T422] ? path_umount+0x1170/0x1170 [ 91.479132][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 91.485281][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 91.491271][ T422] do_syscall_64+0x32/0x80 [ 91.495680][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 91.502162][ T422] RIP: 0033:0x7fabe7ed9097 [ 91.506660][ T422] 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 [ 91.526873][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 91.535922][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 91.544754][ T422] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 91.553507][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 91.561893][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 91.570429][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000006 [ 91.578432][ T422] ---[ end trace a21a7dc9bb3febee ]--- [ 91.584488][ T422] ------------[ cut here ]------------ [ 91.590025][ T422] WARNING: CPU: 0 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 91.599257][ T422] Modules linked in: [ 91.603149][ T422] CPU: 0 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 91.614361][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.624608][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 91.630498][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 91.647938][ T494] FAULT_INJECTION: forcing a failure. [ 91.647938][ T494] name failslab, interval 1, probability 0, space 0, times 0 [ 91.650336][ T422] RSP: 0018:ffffc90000767cf0 EFLAGS: 00010282 [ 91.669079][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecfa5 RCX: 0000000000000002 [ 91.677028][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 91.685119][ T422] RBP: ffffc90000767db0 R08: 0000000000000000 R09: 0000000000000008 [ 91.687767][ T494] CPU: 1 PID: 494 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 91.693095][ T422] R10: fffff520000ecf91 R11: ffff8881f7155bc0 R12: ffffc90000767d48 [ 91.702932][ T494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.702934][ T494] Call Trace: [ 91.702948][ T494] dump_stack+0x84/0xad [ 91.702955][ T494] should_fail.cold+0x5/0x1f [ 91.711049][ T422] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810d686000 [ 91.721095][ T494] __should_failslab+0xd8/0x120 [ 91.721102][ T494] should_failslab+0x9/0x20 [ 91.721107][ T494] __kmalloc_track_caller+0x5c/0x360 [ 91.721112][ T494] ? __kernfs_new_node+0xaa/0x680 [ 91.721119][ T494] kstrdup_const+0x45/0x70 [ 91.721128][ T494] __kernfs_new_node+0xaa/0x680 [ 91.724529][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 91.728741][ T494] ? kernfs_dop_revalidate+0x370/0x370 [ 91.728746][ T494] ? kasan_save_stack+0x42/0x50 [ 91.728749][ T494] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 91.728752][ T494] ? kasan_kmalloc+0x9/0x10 [ 91.728762][ T494] ? snprintf+0x9e/0xd0 [ 91.733319][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.741263][ T494] ? vsprintf+0x20/0x20 [ 91.741276][ T494] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 91.741283][ T494] ? do_syscall_64+0x32/0x80 [ 91.746121][ T422] CR2: 00007fabe7f4e350 CR3: 0000000116a99000 CR4: 00000000003506b0 [ 91.750606][ T494] kernfs_new_node+0x79/0x110 [ 91.750612][ T494] ? __kasan_check_write+0x14/0x20 [ 91.750616][ T494] __kernfs_create_file+0x24/0x270 [ 91.750622][ T494] cgroup_addrm_files+0x2e2/0x830 [ 91.750627][ T494] ? cgroup_show_path+0x3d0/0x3d0 [ 91.750634][ T494] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 91.750638][ T494] ? __radix_tree_replace+0xd0/0x250 [ 91.750641][ T494] ? idr_replace+0x138/0x150 [ 91.750644][ T494] ? idr_get_next+0x130/0x130 [ 91.750648][ T494] css_populate_dir+0x17a/0x400 [ 91.750656][ T494] cgroup_apply_control_enable+0x39c/0xf10 [ 91.755911][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.760933][ T494] cgroup_subtree_control_write+0x6d3/0xd60 [ 91.760938][ T494] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 91.760944][ T494] ? kfree+0xc2/0x560 [ 91.760947][ T494] ? __kasan_slab_free+0x129/0x170 [ 91.760958][ T494] cgroup_file_write+0x272/0x7c0 [ 91.765359][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.770194][ T494] ? __kasan_check_write+0x14/0x20 [ 91.770199][ T494] ? cgroup_file_poll+0xd0/0xd0 [ 91.770205][ T494] ? __mutex_lock_slowpath+0x10/0x10 [ 91.770210][ T494] ? cgroup_file_poll+0xd0/0xd0 [ 91.770218][ T494] kernfs_fop_write_iter+0x2d5/0x450 [ 91.781244][ T422] Call Trace: [ 91.786703][ T494] new_sync_write+0x358/0x6e0 [ 91.791712][ T422] ? namespace_unlock+0x331/0x3e0 [ 91.797734][ T494] ? new_sync_read+0x6e0/0x6e0 [ 91.802667][ T422] ? clone_private_mount+0x300/0x300 [ 91.806736][ T494] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 91.813341][ T422] ? dput+0xac/0x8a0 [ 91.817446][ T494] ? rw_verify_area+0xc3/0x2b0 [ 91.823529][ T422] path_umount+0x6a3/0x1170 [ 91.828419][ T494] vfs_write+0x4f5/0x750 [ 91.828425][ T494] ksys_write+0x111/0x210 [ 91.828429][ T494] ? __ia32_sys_read+0xa0/0xa0 [ 91.828437][ T494] ? debug_smp_processor_id+0x17/0x20 [ 91.828449][ T494] ? fpregs_assert_state_consistent+0x49/0xb0 [ 91.836407][ T422] ? __detach_mounts+0x210/0x210 [ 91.841091][ T494] __x64_sys_write+0x6e/0xb0 [ 91.841097][ T494] ? syscall_exit_to_user_mode+0x27/0x160 [ 91.841100][ T494] do_syscall_64+0x32/0x80 [ 91.841105][ T494] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 91.841109][ T494] RIP: 0033:0x7fabe7ed7ce9 [ 91.841118][ T494] 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 [ 91.846196][ T422] ? user_path_at_empty+0xa2/0xf0 [ 91.851275][ T494] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 91.851280][ T494] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 91.851283][ T494] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 91.851285][ T494] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 91.851287][ T494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 91.851290][ T494] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000004 [ 92.133648][ T422] __x64_sys_umount+0xfb/0x120 [ 92.138481][ T422] ? path_umount+0x1170/0x1170 [ 92.143315][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 92.149473][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 92.155170][ T422] do_syscall_64+0x32/0x80 [ 92.159571][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 92.166743][ T422] RIP: 0033:0x7fabe7ed9097 [ 92.171362][ T422] 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 [ 92.191748][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 92.200331][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 92.208296][ T422] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 92.216245][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 92.224207][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 92.232362][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000006 [ 92.241193][ T422] ---[ end trace a21a7dc9bb3febef ]--- [ 92.246856][ T494] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 92.254871][ T421] ------------[ cut here ]------------ [ 92.260570][ T421] WARNING: CPU: 1 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 92.269630][ T421] Modules linked in: [ 92.273515][ T421] CPU: 1 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 92.283652][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.294204][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 92.299835][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 92.320068][ T421] RSP: 0018:ffffc90000757c28 EFLAGS: 00010286 [ 92.326134][ T421] RAX: 0000000000000000 RBX: 1ffff920000eaf8c RCX: 0000000000000002 [ 92.334111][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 92.342085][ T421] RBP: ffffc90000757ce8 R08: 0000000000000000 R09: 0000000000000008 [ 92.350067][ T421] R10: fffff520000eaf78 R11: 0000000000000000 R12: ffffc90000757c80 [ 92.358062][ T421] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810d603200 [ 92.366012][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 92.375116][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.381699][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506a0 [ 92.389704][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.397666][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.405665][ T421] Call Trace: [ 92.409211][ T421] ? clone_private_mount+0x300/0x300 [ 92.414648][ T421] ? change_mnt_propagation+0x5df/0xd40 [ 92.420193][ T421] namespace_unlock+0x331/0x3e0 [ 92.425034][ T421] ? kern_unmount+0xb0/0xb0 [ 92.429746][ T421] ? unhash_mnt+0x3b0/0x3b0 [ 92.434237][ T421] path_umount+0x665/0x1170 [ 92.438762][ T421] ? __detach_mounts+0x210/0x210 [ 92.443685][ T421] ? user_path_at_empty+0xa2/0xf0 [ 92.448732][ T421] __x64_sys_umount+0xfb/0x120 [ 92.453480][ T421] ? path_umount+0x1170/0x1170 [ 92.458241][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 92.464298][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 92.469968][ T421] do_syscall_64+0x32/0x80 [ 92.474384][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 92.480278][ T421] RIP: 0033:0x7fabe7ed9097 [ 92.484702][ T421] 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 [ 92.506970][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 92.515419][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 92.523394][ T421] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 92.531454][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 92.539603][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 92.547589][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000005 [ 92.555664][ T421] ---[ end trace a21a7dc9bb3febf0 ]--- [ 92.561382][ T421] ------------[ cut here ]------------ [ 92.567126][ T421] WARNING: CPU: 0 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 92.576389][ T421] Modules linked in: [ 92.580299][ T421] CPU: 0 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 92.590348][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.601080][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 92.606723][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 92.626911][ T421] RSP: 0018:ffffc90000757cf0 EFLAGS: 00010282 [ 92.632987][ T421] RAX: 0000000000000000 RBX: 1ffff920000eafa5 RCX: 0000000000000002 [ 92.641107][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 92.649182][ T421] RBP: ffffc90000757db0 R08: 0000000000000000 R09: 0000000000000008 [ 92.657169][ T421] R10: fffff520000eaf91 R11: 0000000000000000 R12: ffffc90000757d48 [ 92.665165][ T421] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d603200 [ 92.673247][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 92.682579][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.689176][ T421] CR2: 00007fabe7f4e350 CR3: 0000000109020000 CR4: 00000000003506b0 [ 92.697122][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.705101][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.713445][ T421] Call Trace: [ 92.716716][ T421] ? namespace_unlock+0x331/0x3e0 [ 92.721744][ T421] ? clone_private_mount+0x300/0x300 [ 92.727023][ T421] ? dput+0xac/0x8a0 [ 92.730926][ T421] path_umount+0x6a3/0x1170 [ 92.735720][ T421] ? __detach_mounts+0x210/0x210 [ 92.740664][ T421] ? user_path_at_empty+0xa2/0xf0 [ 92.745851][ T421] __x64_sys_umount+0xfb/0x120 [ 92.750789][ T421] ? path_umount+0x1170/0x1170 [ 92.755745][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 92.761845][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 92.767704][ T421] do_syscall_64+0x32/0x80 [ 92.772226][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 92.778124][ T421] RIP: 0033:0x7fabe7ed9097 [ 92.782817][ T421] 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 [ 92.802436][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 92.810852][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 92.818837][ T421] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 92.826802][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 92.834798][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 92.842805][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000005 [ 92.850919][ T421] ---[ end trace a21a7dc9bb3febf1 ]--- [ 92.856907][ T487] FAULT_INJECTION: forcing a failure. [ 92.856907][ T487] name failslab, interval 1, probability 0, space 0, times 0 [ 92.869685][ T487] CPU: 1 PID: 487 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 92.879548][ T487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.889670][ T487] Call Trace: [ 92.892940][ T487] dump_stack+0x84/0xad [ 92.897081][ T487] should_fail.cold+0x5/0x1f [ 92.901649][ T487] ? pids_css_alloc+0x3c/0x130 [ 92.906385][ T487] __should_failslab+0xd8/0x120 [ 92.911309][ T487] should_failslab+0x9/0x20 [ 92.915811][ T487] kmem_cache_alloc_trace+0x3d/0x330 [ 92.921086][ T487] pids_css_alloc+0x3c/0x130 [ 92.925650][ T487] cgroup_apply_control_enable+0x432/0xf10 [ 92.931549][ T487] cgroup_subtree_control_write+0x6d3/0xd60 [ 92.937436][ T487] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 92.943749][ T487] ? kfree+0xc2/0x560 [ 92.947706][ T487] ? __kasan_slab_free+0x129/0x170 [ 92.952796][ T487] cgroup_file_write+0x272/0x7c0 [ 92.957710][ T487] ? __kasan_check_write+0x14/0x20 [ 92.962989][ T487] ? cgroup_file_poll+0xd0/0xd0 [ 92.967821][ T487] ? __mutex_lock_slowpath+0x10/0x10 [ 92.973439][ T487] ? cgroup_file_poll+0xd0/0xd0 [ 92.978262][ T487] kernfs_fop_write_iter+0x2d5/0x450 [ 92.983517][ T487] new_sync_write+0x358/0x6e0 [ 92.988172][ T487] ? new_sync_read+0x6e0/0x6e0 [ 92.993271][ T487] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 93.000093][ T487] ? rw_verify_area+0xc3/0x2b0 [ 93.004827][ T487] vfs_write+0x4f5/0x750 [ 93.009039][ T487] ksys_write+0x111/0x210 [ 93.013443][ T487] ? __ia32_sys_read+0xa0/0xa0 [ 93.018267][ T487] ? debug_smp_processor_id+0x17/0x20 [ 93.023619][ T487] ? fpregs_assert_state_consistent+0x49/0xb0 [ 93.029669][ T487] __x64_sys_write+0x6e/0xb0 [ 93.034228][ T487] ? syscall_exit_to_user_mode+0x27/0x160 [ 93.040149][ T487] do_syscall_64+0x32/0x80 [ 93.044542][ T487] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 93.050588][ T487] RIP: 0033:0x7fabe7ed7ce9 [ 93.054973][ T487] 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 [ 93.074646][ T487] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 93.083036][ T487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 93.091161][ T487] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 93.099111][ T487] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 93.107056][ T487] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 93.115002][ T487] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000004 [ 93.148252][ T504] FAULT_INJECTION: forcing a failure. [ 93.148252][ T504] name failslab, interval 1, probability 0, space 0, times 0 [ 93.160948][ T504] CPU: 1 PID: 504 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 93.170809][ T504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.180930][ T504] Call Trace: [ 93.184196][ T504] dump_stack+0x84/0xad [ 93.188322][ T504] should_fail.cold+0x5/0x1f [ 93.192896][ T504] __should_failslab+0xd8/0x120 [ 93.197720][ T504] should_failslab+0x9/0x20 [ 93.202204][ T504] __kmalloc_track_caller+0x5c/0x360 [ 93.207456][ T504] ? __kernfs_new_node+0xaa/0x680 [ 93.212451][ T504] kstrdup_const+0x45/0x70 [ 93.217364][ T504] __kernfs_new_node+0xaa/0x680 [ 93.222182][ T504] ? kernfs_dop_revalidate+0x370/0x370 [ 93.227608][ T504] ? kasan_save_stack+0x42/0x50 [ 93.232428][ T504] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 93.238268][ T504] ? kasan_kmalloc+0x9/0x10 [ 93.243004][ T504] ? snprintf+0x9e/0xd0 [ 93.247128][ T504] ? vsprintf+0x20/0x20 [ 93.251261][ T504] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 93.257303][ T504] ? do_syscall_64+0x32/0x80 [ 93.261953][ T504] kernfs_new_node+0x79/0x110 [ 93.266610][ T504] ? __kasan_check_write+0x14/0x20 [ 93.271699][ T504] __kernfs_create_file+0x24/0x270 [ 93.276780][ T504] cgroup_addrm_files+0x2e2/0x830 [ 93.281782][ T504] ? cgroup_show_path+0x3d0/0x3d0 [ 93.286796][ T504] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 93.292149][ T504] ? __radix_tree_replace+0xd0/0x250 [ 93.297752][ T504] ? idr_replace+0x138/0x150 [ 93.302315][ T504] ? idr_get_next+0x130/0x130 [ 93.307050][ T504] css_populate_dir+0x17a/0x400 [ 93.311869][ T504] cgroup_apply_control_enable+0x39c/0xf10 [ 93.317643][ T504] cgroup_subtree_control_write+0x6d3/0xd60 [ 93.323501][ T504] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 93.329542][ T504] ? resched_curr+0x1b9/0x220 [ 93.334195][ T504] ? check_preempt_wakeup+0x46d/0x830 [ 93.339537][ T504] ? select_task_rq_fair+0x3af0/0x3af0 [ 93.345184][ T504] cgroup_file_write+0x272/0x7c0 [ 93.350088][ T504] ? __kasan_check_write+0x14/0x20 [ 93.355171][ T504] ? cgroup_file_poll+0xd0/0xd0 [ 93.359990][ T504] ? __mutex_lock_slowpath+0x10/0x10 [ 93.365347][ T504] ? cgroup_file_poll+0xd0/0xd0 [ 93.370167][ T504] kernfs_fop_write_iter+0x2d5/0x450 [ 93.375430][ T504] new_sync_write+0x358/0x6e0 [ 93.380082][ T504] ? new_sync_read+0x6e0/0x6e0 [ 93.384813][ T504] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 93.391553][ T504] ? rw_verify_area+0xc3/0x2b0 [ 93.396285][ T504] vfs_write+0x4f5/0x750 [ 93.400604][ T504] ksys_write+0x111/0x210 [ 93.404900][ T504] ? __ia32_sys_read+0xa0/0xa0 [ 93.409634][ T504] ? debug_smp_processor_id+0x17/0x20 [ 93.414972][ T504] ? fpregs_assert_state_consistent+0x49/0xb0 [ 93.421105][ T504] __x64_sys_write+0x6e/0xb0 [ 93.425752][ T504] ? syscall_exit_to_user_mode+0x27/0x160 [ 93.431446][ T504] do_syscall_64+0x32/0x80 [ 93.436013][ T504] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 93.441995][ T504] RIP: 0033:0x7fabe7ed7ce9 [ 93.446382][ T504] 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 [ 93.465960][ T504] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 93.474431][ T504] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 93.482475][ T504] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 93.490769][ T504] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 93.498721][ T504] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 93.506669][ T504] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000005 [ 93.514827][ T504] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 93.548141][ T503] FAULT_INJECTION: forcing a failure. [ 93.548141][ T503] name failslab, interval 1, probability 0, space 0, times 0 [ 93.560966][ T503] CPU: 0 PID: 503 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 93.570961][ T503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.581283][ T503] Call Trace: [ 93.584592][ T503] dump_stack+0x84/0xad [ 93.589030][ T503] should_fail.cold+0x5/0x1f [ 93.593623][ T503] ? pids_css_alloc+0x3c/0x130 [ 93.598384][ T503] __should_failslab+0xd8/0x120 [ 93.603242][ T503] should_failslab+0x9/0x20 [ 93.607762][ T503] kmem_cache_alloc_trace+0x3d/0x330 [ 93.613080][ T503] pids_css_alloc+0x3c/0x130 [ 93.617757][ T503] cgroup_apply_control_enable+0x432/0xf10 [ 93.623819][ T503] cgroup_subtree_control_write+0x6d3/0xd60 [ 93.629749][ T503] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 93.636056][ T503] ? kfree+0xc2/0x560 [ 93.640165][ T503] ? __kasan_slab_free+0x129/0x170 [ 93.645354][ T503] cgroup_file_write+0x272/0x7c0 [ 93.650277][ T503] ? __kasan_check_write+0x14/0x20 [ 93.655462][ T503] ? cgroup_file_poll+0xd0/0xd0 [ 93.660638][ T503] ? __mutex_lock_slowpath+0x10/0x10 [ 93.665901][ T503] ? cgroup_file_poll+0xd0/0xd0 [ 93.670727][ T503] kernfs_fop_write_iter+0x2d5/0x450 [ 93.675989][ T503] new_sync_write+0x358/0x6e0 [ 93.680813][ T503] ? new_sync_read+0x6e0/0x6e0 [ 93.685565][ T503] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 93.692313][ T503] ? rw_verify_area+0xc3/0x2b0 [ 93.697054][ T503] vfs_write+0x4f5/0x750 [ 93.701363][ T503] ksys_write+0x111/0x210 [ 93.705698][ T503] ? __ia32_sys_read+0xa0/0xa0 [ 93.710447][ T503] ? debug_smp_processor_id+0x17/0x20 [ 93.715821][ T503] ? fpregs_assert_state_consistent+0x49/0xb0 [ 93.721907][ T503] __x64_sys_write+0x6e/0xb0 [ 93.726566][ T503] ? syscall_exit_to_user_mode+0x27/0x160 [ 93.732295][ T503] do_syscall_64+0x32/0x80 [ 93.736696][ T503] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 93.742681][ T503] RIP: 0033:0x7fabe7ed7ce9 [ 93.747075][ T503] 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 [ 93.766856][ T503] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 93.775436][ T503] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 93.783506][ T503] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 93.793270][ T503] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 93.801456][ T503] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 93.809885][ T503] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000006 [ 93.858113][ T500] FAULT_INJECTION: forcing a failure. [ 93.858113][ T500] name failslab, interval 1, probability 0, space 0, times 0 [ 93.871009][ T500] CPU: 0 PID: 500 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 93.881044][ T500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.891835][ T500] Call Trace: [ 93.895118][ T500] dump_stack+0x84/0xad [ 93.899428][ T500] should_fail.cold+0x5/0x1f [ 93.904101][ T500] __should_failslab+0xd8/0x120 [ 93.908951][ T500] should_failslab+0x9/0x20 [ 93.913429][ T500] __kmalloc_track_caller+0x5c/0x360 [ 93.918815][ T500] ? __kernfs_new_node+0xaa/0x680 [ 93.923866][ T500] kstrdup_const+0x45/0x70 [ 93.928411][ T500] __kernfs_new_node+0xaa/0x680 [ 93.933290][ T500] ? kernfs_dop_revalidate+0x370/0x370 [ 93.938912][ T500] ? kasan_save_stack+0x42/0x50 [ 93.943926][ T500] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 93.949719][ T500] ? kasan_kmalloc+0x9/0x10 [ 93.954197][ T500] ? snprintf+0x9e/0xd0 [ 93.958323][ T500] ? vsprintf+0x20/0x20 [ 93.963084][ T500] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 93.969232][ T500] ? do_syscall_64+0x32/0x80 [ 93.973795][ T500] kernfs_new_node+0x79/0x110 [ 93.978441][ T500] ? __kasan_check_write+0x14/0x20 [ 93.983539][ T500] __kernfs_create_file+0x24/0x270 [ 93.988642][ T500] cgroup_addrm_files+0x2e2/0x830 [ 93.993834][ T500] ? cgroup_show_path+0x3d0/0x3d0 [ 93.998861][ T500] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 94.005382][ T500] ? __radix_tree_replace+0xd0/0x250 [ 94.010645][ T500] ? idr_replace+0x138/0x150 [ 94.015733][ T500] ? idr_get_next+0x130/0x130 [ 94.020392][ T500] css_populate_dir+0x17a/0x400 [ 94.025221][ T500] cgroup_apply_control_enable+0x39c/0xf10 [ 94.031241][ T500] cgroup_subtree_control_write+0x6d3/0xd60 [ 94.037293][ T500] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 94.043431][ T500] ? kfree+0xc2/0x560 [ 94.047773][ T500] ? __kasan_slab_free+0x129/0x170 [ 94.052858][ T500] cgroup_file_write+0x272/0x7c0 [ 94.057909][ T500] ? __kasan_check_write+0x14/0x20 [ 94.063263][ T500] ? cgroup_file_poll+0xd0/0xd0 [ 94.068115][ T500] ? __mutex_lock_slowpath+0x10/0x10 [ 94.073572][ T500] ? cgroup_file_poll+0xd0/0xd0 [ 94.078514][ T500] kernfs_fop_write_iter+0x2d5/0x450 [ 94.083892][ T500] new_sync_write+0x358/0x6e0 [ 94.090523][ T500] ? new_sync_read+0x6e0/0x6e0 [ 94.096929][ T500] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 94.104059][ T500] ? rw_verify_area+0xc3/0x2b0 [ 94.108894][ T500] vfs_write+0x4f5/0x750 [ 94.113107][ T500] ksys_write+0x111/0x210 [ 94.117606][ T500] ? __ia32_sys_read+0xa0/0xa0 [ 94.122711][ T500] ? debug_smp_processor_id+0x17/0x20 [ 94.128175][ T500] ? fpregs_assert_state_consistent+0x49/0xb0 [ 94.134223][ T500] __x64_sys_write+0x6e/0xb0 [ 94.138948][ T500] ? syscall_exit_to_user_mode+0x27/0x160 [ 94.144821][ T500] do_syscall_64+0x32/0x80 [ 94.149210][ T500] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 94.155090][ T500] RIP: 0033:0x7fabe7ed7ce9 [ 94.159646][ T500] 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 [ 94.179560][ T500] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 94.188032][ T500] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 94.195997][ T500] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 94.203942][ T500] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 94.211978][ T500] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 94.220109][ T500] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000012 [ 94.228277][ T500] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 94.237016][ T423] ------------[ cut here ]------------ [ 94.243867][ T423] WARNING: CPU: 0 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 94.252808][ T423] Modules linked in: [ 94.256736][ T423] CPU: 0 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 94.266988][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.277170][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 94.282965][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 94.302785][ T423] RSP: 0018:ffffc900007a7c28 EFLAGS: 00010286 [ 94.309034][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4f8c RCX: 0000000000000002 [ 94.317012][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 94.325375][ T423] RBP: ffffc900007a7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 94.333579][ T423] R10: fffff520000f4f78 R11: ffff8881f7055bc0 R12: ffffc900007a7c80 [ 94.341734][ T423] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810d602180 [ 94.349884][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 94.359211][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.365783][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506b0 [ 94.373943][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.381922][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 94.389891][ T423] Call Trace: [ 94.393219][ T423] ? clone_private_mount+0x300/0x300 [ 94.398495][ T423] ? change_mnt_propagation+0x5df/0xd40 [ 94.404041][ T423] namespace_unlock+0x331/0x3e0 [ 94.408920][ T423] ? kern_unmount+0xb0/0xb0 [ 94.413682][ T423] ? unhash_mnt+0x3b0/0x3b0 [ 94.418211][ T423] path_umount+0x665/0x1170 [ 94.422701][ T423] ? __detach_mounts+0x210/0x210 [ 94.427625][ T423] ? user_path_at_empty+0xa2/0xf0 [ 94.432667][ T423] __x64_sys_umount+0xfb/0x120 [ 94.437414][ T423] ? path_umount+0x1170/0x1170 [ 94.442235][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 94.448382][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 94.454004][ T423] do_syscall_64+0x32/0x80 [ 94.458531][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 94.464501][ T423] RIP: 0033:0x7fabe7ed9097 [ 94.469013][ T423] 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 [ 94.489156][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 94.497541][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 94.505621][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 94.513604][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 94.521685][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 94.529659][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000013 [ 94.537628][ T423] ---[ end trace a21a7dc9bb3febf2 ]--- [ 94.543281][ T423] ------------[ cut here ]------------ [ 94.548787][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 94.557692][ T423] Modules linked in: [ 94.562098][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 94.572061][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.582312][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 94.587925][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 94.608272][ T423] RSP: 0018:ffffc900007a7cf0 EFLAGS: 00010282 [ 94.614401][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4fa5 RCX: 0000000000000002 [ 94.622391][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 94.630394][ T423] RBP: ffffc900007a7db0 R08: 0000000000000000 R09: 0000000000000008 [ 94.638480][ T423] R10: fffff520000f4f91 R11: ffff8881f7055bc0 R12: ffffc900007a7d48 [ 94.646432][ T423] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d602180 [ 94.654445][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 94.663372][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.669955][ T423] CR2: 00007fabe7f4e350 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 94.678205][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.686159][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 94.694294][ T423] Call Trace: [ 94.697651][ T423] ? namespace_unlock+0x331/0x3e0 [ 94.702668][ T423] ? clone_private_mount+0x300/0x300 [ 94.707939][ T423] ? dput+0xac/0x8a0 [ 94.711804][ T423] path_umount+0x6a3/0x1170 [ 94.716464][ T423] ? __detach_mounts+0x210/0x210 [ 94.721410][ T423] ? user_path_at_empty+0xa2/0xf0 [ 94.726420][ T423] __x64_sys_umount+0xfb/0x120 [ 94.731176][ T423] ? path_umount+0x1170/0x1170 [ 94.735926][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 94.742001][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 94.747608][ T423] do_syscall_64+0x32/0x80 [ 94.752017][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 94.758005][ T423] RIP: 0033:0x7fabe7ed9097 [ 94.762396][ T423] 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 [ 94.782210][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 94.790626][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 94.798950][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 94.807085][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 94.816023][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 94.824005][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000013 [ 94.832012][ T423] ---[ end trace a21a7dc9bb3febf3 ]--- [ 94.839077][ T506] FAULT_INJECTION: forcing a failure. [ 94.839077][ T506] name failslab, interval 1, probability 0, space 0, times 0 [ 94.854795][ T506] CPU: 0 PID: 506 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 94.864650][ T506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.874693][ T506] Call Trace: [ 94.877952][ T506] dump_stack+0x84/0xad [ 94.882079][ T506] should_fail.cold+0x5/0x1f [ 94.886638][ T506] ? __kernfs_new_node+0xe5/0x680 [ 94.891634][ T506] __should_failslab+0xd8/0x120 [ 94.896458][ T506] should_failslab+0x9/0x20 [ 94.900926][ T506] kmem_cache_alloc+0x2d/0x4e0 [ 94.905657][ T506] __kernfs_new_node+0xe5/0x680 [ 94.910474][ T506] ? kernfs_dop_revalidate+0x370/0x370 [ 94.915900][ T506] ? kasan_save_stack+0x42/0x50 [ 94.920716][ T506] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 94.926487][ T506] ? kasan_kmalloc+0x9/0x10 [ 94.934604][ T506] ? snprintf+0x9e/0xd0 [ 94.938730][ T506] ? vsprintf+0x20/0x20 [ 94.942858][ T506] kernfs_new_node+0x79/0x110 [ 94.947502][ T506] __kernfs_create_file+0x24/0x270 [ 94.952931][ T506] cgroup_addrm_files+0x2e2/0x830 [ 94.957921][ T506] ? cgroup_show_path+0x3d0/0x3d0 [ 94.962923][ T506] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 94.968276][ T506] ? __radix_tree_replace+0xd0/0x250 [ 94.973595][ T506] ? idr_replace+0x138/0x150 [ 94.978167][ T506] ? idr_get_next+0x130/0x130 [ 94.983082][ T506] css_populate_dir+0x17a/0x400 [ 94.987903][ T506] cgroup_apply_control_enable+0x39c/0xf10 [ 94.993696][ T506] cgroup_subtree_control_write+0x6d3/0xd60 [ 94.999833][ T506] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 95.005958][ T506] ? kfree+0xc2/0x560 [ 95.009920][ T506] ? __kasan_slab_free+0x129/0x170 [ 95.014996][ T506] cgroup_file_write+0x272/0x7c0 [ 95.020026][ T506] ? __kasan_check_write+0x14/0x20 [ 95.025119][ T506] ? cgroup_file_poll+0xd0/0xd0 [ 95.029938][ T506] ? __mutex_lock_slowpath+0x10/0x10 [ 95.035189][ T506] ? cgroup_file_poll+0xd0/0xd0 [ 95.040048][ T506] kernfs_fop_write_iter+0x2d5/0x450 [ 95.045399][ T506] new_sync_write+0x358/0x6e0 [ 95.050131][ T506] ? new_sync_read+0x6e0/0x6e0 [ 95.054963][ T506] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 95.061923][ T506] ? rw_verify_area+0xc3/0x2b0 [ 95.066655][ T506] vfs_write+0x4f5/0x750 [ 95.070951][ T506] ksys_write+0x111/0x210 [ 95.075249][ T506] ? __ia32_sys_read+0xa0/0xa0 [ 95.080068][ T506] ? debug_smp_processor_id+0x17/0x20 [ 95.085860][ T506] ? fpregs_assert_state_consistent+0x49/0xb0 [ 95.092084][ T506] __x64_sys_write+0x6e/0xb0 [ 95.096760][ T506] ? syscall_exit_to_user_mode+0x27/0x160 [ 95.102448][ T506] do_syscall_64+0x32/0x80 [ 95.106833][ T506] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 95.112702][ T506] RIP: 0033:0x7fabe7ed7ce9 [ 95.117194][ T506] 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 [ 95.136867][ T506] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 95.145393][ T506] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 95.153531][ T506] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 95.161666][ T506] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 95.169826][ T506] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 95.177775][ T506] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000006 [ 95.185898][ T506] cgroup: cgroup_addrm_files: failed to add events, err=-12 [ 95.218154][ T498] FAULT_INJECTION: forcing a failure. [ 95.218154][ T498] name failslab, interval 1, probability 0, space 0, times 0 [ 95.230947][ T498] CPU: 1 PID: 498 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 95.240821][ T498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.251210][ T498] Call Trace: [ 95.254476][ T498] dump_stack+0x84/0xad [ 95.258606][ T498] should_fail.cold+0x5/0x1f [ 95.263172][ T498] ? pids_css_alloc+0x3c/0x130 [ 95.267916][ T498] __should_failslab+0xd8/0x120 [ 95.272741][ T498] should_failslab+0x9/0x20 [ 95.277220][ T498] kmem_cache_alloc_trace+0x3d/0x330 [ 95.282563][ T498] pids_css_alloc+0x3c/0x130 [ 95.287127][ T498] cgroup_apply_control_enable+0x432/0xf10 [ 95.292908][ T498] cgroup_subtree_control_write+0x6d3/0xd60 [ 95.298858][ T498] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 95.305099][ T498] ? kfree+0xc2/0x560 [ 95.309055][ T498] ? __kasan_slab_free+0x129/0x170 [ 95.314160][ T498] cgroup_file_write+0x272/0x7c0 [ 95.319071][ T498] ? __kasan_check_write+0x14/0x20 [ 95.324154][ T498] ? cgroup_file_poll+0xd0/0xd0 [ 95.328973][ T498] ? __mutex_lock_slowpath+0x10/0x10 [ 95.334226][ T498] ? cgroup_file_poll+0xd0/0xd0 [ 95.339043][ T498] kernfs_fop_write_iter+0x2d5/0x450 [ 95.344397][ T498] new_sync_write+0x358/0x6e0 [ 95.349091][ T498] ? new_sync_read+0x6e0/0x6e0 [ 95.353834][ T498] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 95.360579][ T498] ? rw_verify_area+0xc3/0x2b0 [ 95.365312][ T498] vfs_write+0x4f5/0x750 [ 95.370400][ T498] ksys_write+0x111/0x210 [ 95.374707][ T498] ? __ia32_sys_read+0xa0/0xa0 [ 95.379454][ T498] ? debug_smp_processor_id+0x17/0x20 [ 95.384910][ T498] ? fpregs_assert_state_consistent+0x49/0xb0 [ 95.390955][ T498] __x64_sys_write+0x6e/0xb0 [ 95.395702][ T498] ? syscall_exit_to_user_mode+0x27/0x160 [ 95.401414][ T498] do_syscall_64+0x32/0x80 [ 95.405817][ T498] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 95.411673][ T498] RIP: 0033:0x7fabe7ed7ce9 [ 95.416115][ T498] 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 [ 95.435714][ T498] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 95.444181][ T498] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 95.452131][ T498] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 95.460349][ T498] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 95.468388][ T498] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 95.476451][ T498] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000a [ 95.518061][ T502] FAULT_INJECTION: forcing a failure. [ 95.518061][ T502] name failslab, interval 1, probability 0, space 0, times 0 [ 95.530784][ T502] CPU: 1 PID: 502 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 95.540644][ T502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.550782][ T502] Call Trace: [ 95.554047][ T502] dump_stack+0x84/0xad [ 95.558176][ T502] should_fail.cold+0x5/0x1f [ 95.562740][ T502] ? pids_css_alloc+0x3c/0x130 [ 95.567468][ T502] __should_failslab+0xd8/0x120 [ 95.572302][ T502] should_failslab+0x9/0x20 [ 95.577647][ T502] kmem_cache_alloc_trace+0x3d/0x330 [ 95.582899][ T502] pids_css_alloc+0x3c/0x130 [ 95.587456][ T502] cgroup_apply_control_enable+0x432/0xf10 [ 95.593234][ T502] cgroup_subtree_control_write+0x6d3/0xd60 [ 95.599268][ T502] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 95.605319][ T502] ? kfree+0xc2/0x560 [ 95.609279][ T502] ? __kasan_slab_free+0x129/0x170 [ 95.614411][ T502] cgroup_file_write+0x272/0x7c0 [ 95.619317][ T502] ? __kasan_check_write+0x14/0x20 [ 95.624514][ T502] ? cgroup_file_poll+0xd0/0xd0 [ 95.629352][ T502] ? __mutex_lock_slowpath+0x10/0x10 [ 95.634605][ T502] ? cgroup_file_poll+0xd0/0xd0 [ 95.639436][ T502] kernfs_fop_write_iter+0x2d5/0x450 [ 95.644702][ T502] new_sync_write+0x358/0x6e0 [ 95.649369][ T502] ? new_sync_read+0x6e0/0x6e0 [ 95.654126][ T502] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 95.660868][ T502] ? rw_verify_area+0xc3/0x2b0 [ 95.665601][ T502] vfs_write+0x4f5/0x750 [ 95.669834][ T502] ksys_write+0x111/0x210 [ 95.674138][ T502] ? __ia32_sys_read+0xa0/0xa0 [ 95.678870][ T502] ? debug_smp_processor_id+0x17/0x20 [ 95.684210][ T502] ? fpregs_assert_state_consistent+0x49/0xb0 [ 95.690245][ T502] __x64_sys_write+0x6e/0xb0 [ 95.694802][ T502] ? syscall_exit_to_user_mode+0x27/0x160 [ 95.700498][ T502] do_syscall_64+0x32/0x80 [ 95.704972][ T502] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 95.710831][ T502] RIP: 0033:0x7fabe7ed7ce9 [ 95.715220][ T502] 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 [ 95.735085][ T502] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 95.743648][ T502] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 95.751619][ T502] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 95.760097][ T502] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 95.769449][ T502] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 95.777824][ T502] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000a [ 95.818144][ T508] FAULT_INJECTION: forcing a failure. [ 95.818144][ T508] name failslab, interval 1, probability 0, space 0, times 0 [ 95.830943][ T508] CPU: 0 PID: 508 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 95.840896][ T508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.850955][ T508] Call Trace: [ 95.854306][ T508] dump_stack+0x84/0xad [ 95.858448][ T508] should_fail.cold+0x5/0x1f [ 95.863006][ T508] __should_failslab+0xd8/0x120 [ 95.867826][ T508] should_failslab+0x9/0x20 [ 95.872314][ T508] __kmalloc_track_caller+0x5c/0x360 [ 95.877572][ T508] ? __kernfs_new_node+0xaa/0x680 [ 95.882672][ T508] kstrdup_const+0x45/0x70 [ 95.887076][ T508] __kernfs_new_node+0xaa/0x680 [ 95.891923][ T508] ? kernfs_dop_revalidate+0x370/0x370 [ 95.897366][ T508] ? kasan_save_stack+0x42/0x50 [ 95.902282][ T508] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 95.908056][ T508] ? kasan_kmalloc+0x9/0x10 [ 95.912781][ T508] ? snprintf+0x9e/0xd0 [ 95.916905][ T508] ? vsprintf+0x20/0x20 [ 95.921030][ T508] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 95.927086][ T508] ? do_syscall_64+0x32/0x80 [ 95.931763][ T508] kernfs_new_node+0x79/0x110 [ 95.936528][ T508] ? __kasan_check_write+0x14/0x20 [ 95.941894][ T508] __kernfs_create_file+0x24/0x270 [ 95.946996][ T508] cgroup_addrm_files+0x2e2/0x830 [ 95.952437][ T508] ? cgroup_show_path+0x3d0/0x3d0 [ 95.958137][ T508] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 95.963485][ T508] ? __radix_tree_replace+0xd0/0x250 [ 95.968836][ T508] ? idr_replace+0x138/0x150 [ 95.973393][ T508] ? idr_get_next+0x130/0x130 [ 95.978066][ T508] css_populate_dir+0x17a/0x400 [ 95.982904][ T508] cgroup_apply_control_enable+0x39c/0xf10 [ 95.988681][ T508] cgroup_subtree_control_write+0x6d3/0xd60 [ 95.994818][ T508] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 96.000862][ T508] ? kfree+0xc2/0x560 [ 96.004817][ T508] ? __kasan_check_write+0x14/0x20 [ 96.009909][ T508] cgroup_file_write+0x272/0x7c0 [ 96.014830][ T508] ? __kasan_check_write+0x14/0x20 [ 96.019909][ T508] ? cgroup_file_poll+0xd0/0xd0 [ 96.024818][ T508] ? __mutex_lock_slowpath+0x10/0x10 [ 96.030073][ T508] ? cgroup_file_poll+0xd0/0xd0 [ 96.034926][ T508] kernfs_fop_write_iter+0x2d5/0x450 [ 96.040283][ T508] new_sync_write+0x358/0x6e0 [ 96.045040][ T508] ? new_sync_read+0x6e0/0x6e0 [ 96.049805][ T508] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 96.056564][ T508] ? rw_verify_area+0xc3/0x2b0 [ 96.062010][ T508] vfs_write+0x4f5/0x750 [ 96.066248][ T508] ksys_write+0x111/0x210 [ 96.070734][ T508] ? __ia32_sys_read+0xa0/0xa0 [ 96.075495][ T508] ? debug_smp_processor_id+0x17/0x20 [ 96.081071][ T508] ? fpregs_assert_state_consistent+0x49/0xb0 [ 96.087296][ T508] __x64_sys_write+0x6e/0xb0 [ 96.091860][ T508] ? syscall_exit_to_user_mode+0x27/0x160 [ 96.097558][ T508] do_syscall_64+0x32/0x80 [ 96.101958][ T508] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 96.108083][ T508] RIP: 0033:0x7fabe7ed7ce9 [ 96.112483][ T508] 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 [ 96.132815][ T508] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 96.141280][ T508] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 96.149221][ T508] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 96.157246][ T508] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 96.165186][ T508] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 96.173127][ T508] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000013 [ 96.181994][ T508] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 96.228259][ T505] FAULT_INJECTION: forcing a failure. [ 96.228259][ T505] name failslab, interval 1, probability 0, space 0, times 0 [ 96.241060][ T505] CPU: 1 PID: 505 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 96.251105][ T505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.261392][ T505] Call Trace: [ 96.264651][ T505] dump_stack+0x84/0xad [ 96.268898][ T505] should_fail.cold+0x5/0x1f [ 96.273453][ T505] ? find_next_bit+0x14/0x20 [ 96.278011][ T505] ? cgroup_exit_cftypes+0x150/0x150 [ 96.283263][ T505] ? percpu_ref_init+0xd1/0x380 [ 96.288077][ T505] __should_failslab+0xd8/0x120 [ 96.292894][ T505] should_failslab+0x9/0x20 [ 96.297378][ T505] kmem_cache_alloc_trace+0x3d/0x330 [ 96.302627][ T505] ? cgroup_exit_cftypes+0x150/0x150 [ 96.307878][ T505] percpu_ref_init+0xd1/0x380 [ 96.312536][ T505] cgroup_apply_control_enable+0x486/0xf10 [ 96.318315][ T505] cgroup_subtree_control_write+0x6d3/0xd60 [ 96.324169][ T505] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 96.330210][ T505] ? kfree+0xc2/0x560 [ 96.334162][ T505] ? __kasan_slab_free+0x129/0x170 [ 96.339238][ T505] cgroup_file_write+0x272/0x7c0 [ 96.344144][ T505] ? __kasan_check_write+0x14/0x20 [ 96.349231][ T505] ? cgroup_file_poll+0xd0/0xd0 [ 96.354050][ T505] ? __mutex_lock_slowpath+0x10/0x10 [ 96.359306][ T505] ? cgroup_file_poll+0xd0/0xd0 [ 96.364131][ T505] kernfs_fop_write_iter+0x2d5/0x450 [ 96.369388][ T505] new_sync_write+0x358/0x6e0 [ 96.374034][ T505] ? new_sync_read+0x6e0/0x6e0 [ 96.378762][ T505] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 96.385497][ T505] ? rw_verify_area+0xc3/0x2b0 [ 96.390232][ T505] vfs_write+0x4f5/0x750 [ 96.394525][ T505] ksys_write+0x111/0x210 [ 96.399182][ T505] ? __ia32_sys_read+0xa0/0xa0 [ 96.403912][ T505] ? debug_smp_processor_id+0x17/0x20 [ 96.409273][ T505] ? fpregs_assert_state_consistent+0x49/0xb0 [ 96.415574][ T505] __x64_sys_write+0x6e/0xb0 [ 96.420147][ T505] ? syscall_exit_to_user_mode+0x27/0x160 [ 96.425840][ T505] do_syscall_64+0x32/0x80 [ 96.430396][ T505] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 96.436252][ T505] RIP: 0033:0x7fabe7ed7ce9 [ 96.440719][ T505] 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 [ 96.460381][ T505] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 96.468756][ T505] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 96.476708][ T505] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 96.484756][ T505] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 96.492714][ T505] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 96.500712][ T505] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000005 [ 96.558166][ T512] FAULT_INJECTION: forcing a failure. [ 96.558166][ T512] name failslab, interval 1, probability 0, space 0, times 0 [ 96.570929][ T512] CPU: 1 PID: 512 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 96.580827][ T512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.590941][ T512] Call Trace: [ 96.594214][ T512] dump_stack+0x84/0xad [ 96.598422][ T512] should_fail.cold+0x5/0x1f [ 96.602995][ T512] ? find_next_bit+0x14/0x20 [ 96.607578][ T512] ? cgroup_exit_cftypes+0x150/0x150 [ 96.612855][ T512] ? percpu_ref_init+0xd1/0x380 [ 96.617914][ T512] __should_failslab+0xd8/0x120 [ 96.622832][ T512] should_failslab+0x9/0x20 [ 96.627320][ T512] kmem_cache_alloc_trace+0x3d/0x330 [ 96.632614][ T512] ? cgroup_exit_cftypes+0x150/0x150 [ 96.637989][ T512] percpu_ref_init+0xd1/0x380 [ 96.642835][ T512] cgroup_apply_control_enable+0x486/0xf10 [ 96.648922][ T512] cgroup_subtree_control_write+0x6d3/0xd60 [ 96.654807][ T512] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 96.660937][ T512] ? kfree+0xc2/0x560 [ 96.664905][ T512] ? __kasan_slab_free+0x129/0x170 [ 96.670130][ T512] cgroup_file_write+0x272/0x7c0 [ 96.675063][ T512] ? __kasan_check_write+0x14/0x20 [ 96.680282][ T512] ? cgroup_file_poll+0xd0/0xd0 [ 96.685294][ T512] ? __mutex_lock_slowpath+0x10/0x10 [ 96.690562][ T512] ? cgroup_file_poll+0xd0/0xd0 [ 96.695571][ T512] kernfs_fop_write_iter+0x2d5/0x450 [ 96.700878][ T512] new_sync_write+0x358/0x6e0 [ 96.705621][ T512] ? new_sync_read+0x6e0/0x6e0 [ 96.710378][ T512] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 96.718412][ T512] ? rw_verify_area+0xc3/0x2b0 [ 96.723145][ T512] vfs_write+0x4f5/0x750 [ 96.727355][ T512] ksys_write+0x111/0x210 [ 96.731812][ T512] ? __ia32_sys_read+0xa0/0xa0 [ 96.736558][ T512] ? debug_smp_processor_id+0x17/0x20 [ 96.742017][ T512] ? fpregs_assert_state_consistent+0x49/0xb0 [ 96.748229][ T512] __x64_sys_write+0x6e/0xb0 [ 96.752998][ T512] ? syscall_exit_to_user_mode+0x27/0x160 [ 96.758878][ T512] do_syscall_64+0x32/0x80 [ 96.763268][ T512] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 96.769131][ T512] RIP: 0033:0x7fabe7ed7ce9 [ 96.773718][ T512] 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 [ 96.793403][ T512] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 96.803344][ T512] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 96.811292][ T512] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 96.819579][ T512] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 96.827691][ T512] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 96.835727][ T512] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000014 [ 96.878349][ T509] FAULT_INJECTION: forcing a failure. [ 96.878349][ T509] name failslab, interval 1, probability 0, space 0, times 0 [ 96.890970][ T509] CPU: 0 PID: 509 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 96.900854][ T509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.910900][ T509] Call Trace: [ 96.914183][ T509] dump_stack+0x84/0xad [ 96.918375][ T509] should_fail.cold+0x5/0x1f [ 96.922969][ T509] ? find_next_bit+0x14/0x20 [ 96.927545][ T509] ? cgroup_exit_cftypes+0x150/0x150 [ 96.932895][ T509] ? percpu_ref_init+0xd1/0x380 [ 96.937715][ T509] __should_failslab+0xd8/0x120 [ 96.942550][ T509] should_failslab+0x9/0x20 [ 96.947024][ T509] kmem_cache_alloc_trace+0x3d/0x330 [ 96.952363][ T509] ? cgroup_exit_cftypes+0x150/0x150 [ 96.957618][ T509] percpu_ref_init+0xd1/0x380 [ 96.962268][ T509] cgroup_apply_control_enable+0x486/0xf10 [ 96.968054][ T509] cgroup_subtree_control_write+0x6d3/0xd60 [ 96.974003][ T509] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 96.980050][ T509] ? kfree+0xc2/0x560 [ 96.984695][ T509] ? __kasan_slab_free+0x129/0x170 [ 96.989778][ T509] cgroup_file_write+0x272/0x7c0 [ 96.994786][ T509] ? __kasan_check_write+0x14/0x20 [ 96.999882][ T509] ? cgroup_file_poll+0xd0/0xd0 [ 97.004801][ T509] ? __mutex_lock_slowpath+0x10/0x10 [ 97.011120][ T509] ? cgroup_file_poll+0xd0/0xd0 [ 97.015955][ T509] kernfs_fop_write_iter+0x2d5/0x450 [ 97.021560][ T509] new_sync_write+0x358/0x6e0 [ 97.027691][ T509] ? new_sync_read+0x6e0/0x6e0 [ 97.032433][ T509] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 97.039201][ T509] ? rw_verify_area+0xc3/0x2b0 [ 97.043941][ T509] vfs_write+0x4f5/0x750 [ 97.048158][ T509] ksys_write+0x111/0x210 [ 97.052460][ T509] ? __ia32_sys_read+0xa0/0xa0 [ 97.057310][ T509] ? debug_smp_processor_id+0x17/0x20 [ 97.062658][ T509] ? fpregs_assert_state_consistent+0x49/0xb0 [ 97.068710][ T509] __x64_sys_write+0x6e/0xb0 [ 97.073292][ T509] ? syscall_exit_to_user_mode+0x27/0x160 [ 97.079246][ T509] do_syscall_64+0x32/0x80 [ 97.083637][ T509] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 97.089884][ T509] RIP: 0033:0x7fabe7ed7ce9 [ 97.094268][ T509] 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 [ 97.114375][ T509] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 97.123210][ T509] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 97.131616][ T509] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 97.139663][ T509] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 97.149659][ T509] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 97.157812][ T509] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000007 [ 97.198401][ T507] FAULT_INJECTION: forcing a failure. [ 97.198401][ T507] name failslab, interval 1, probability 0, space 0, times 0 [ 97.211259][ T507] CPU: 1 PID: 507 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 97.221747][ T507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.231781][ T507] Call Trace: [ 97.235049][ T507] dump_stack+0x84/0xad [ 97.239291][ T507] should_fail.cold+0x5/0x1f [ 97.243867][ T507] ? pids_css_alloc+0x3c/0x130 [ 97.248716][ T507] __should_failslab+0xd8/0x120 [ 97.253893][ T507] should_failslab+0x9/0x20 [ 97.261445][ T507] kmem_cache_alloc_trace+0x3d/0x330 [ 97.266886][ T507] pids_css_alloc+0x3c/0x130 [ 97.271592][ T507] cgroup_apply_control_enable+0x432/0xf10 [ 97.277379][ T507] cgroup_subtree_control_write+0x6d3/0xd60 [ 97.283255][ T507] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 97.289334][ T507] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 97.295315][ T507] cgroup_file_write+0x272/0x7c0 [ 97.300356][ T507] ? __kasan_check_write+0x14/0x20 [ 97.305716][ T507] ? cgroup_file_poll+0xd0/0xd0 [ 97.310553][ T507] ? __mutex_lock_slowpath+0x10/0x10 [ 97.315824][ T507] ? cgroup_file_poll+0xd0/0xd0 [ 97.326294][ T507] kernfs_fop_write_iter+0x2d5/0x450 [ 97.332197][ T507] new_sync_write+0x358/0x6e0 [ 97.336881][ T507] ? new_sync_read+0x6e0/0x6e0 [ 97.341787][ T507] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 97.348541][ T507] ? rw_verify_area+0xc3/0x2b0 [ 97.353400][ T507] vfs_write+0x4f5/0x750 [ 97.357755][ T507] ksys_write+0x111/0x210 [ 97.362079][ T507] ? __ia32_sys_read+0xa0/0xa0 [ 97.366836][ T507] ? debug_smp_processor_id+0x17/0x20 [ 97.372391][ T507] ? fpregs_assert_state_consistent+0x49/0xb0 [ 97.378438][ T507] __x64_sys_write+0x6e/0xb0 [ 97.383001][ T507] ? syscall_exit_to_user_mode+0x27/0x160 [ 97.388693][ T507] do_syscall_64+0x32/0x80 [ 97.393096][ T507] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 97.398972][ T507] RIP: 0033:0x7fabe7ed7ce9 [ 97.403359][ T507] 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 [ 97.422935][ T507] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 97.431772][ T507] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 97.439803][ T507] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 97.447753][ T507] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 97.455700][ T507] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 97.463679][ T507] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000007 [ 97.498318][ T510] FAULT_INJECTION: forcing a failure. [ 97.498318][ T510] name failslab, interval 1, probability 0, space 0, times 0 [ 97.511661][ T510] CPU: 0 PID: 510 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 97.521740][ T510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.533436][ T510] Call Trace: [ 97.536908][ T510] dump_stack+0x84/0xad [ 97.541322][ T510] should_fail.cold+0x5/0x1f [ 97.545940][ T510] ? find_next_bit+0x14/0x20 [ 97.550607][ T510] ? cgroup_exit_cftypes+0x150/0x150 [ 97.555873][ T510] ? percpu_ref_init+0xd1/0x380 [ 97.560847][ T510] __should_failslab+0xd8/0x120 [ 97.565768][ T510] should_failslab+0x9/0x20 [ 97.570247][ T510] kmem_cache_alloc_trace+0x3d/0x330 [ 97.579061][ T510] ? cgroup_exit_cftypes+0x150/0x150 [ 97.584560][ T510] percpu_ref_init+0xd1/0x380 [ 97.589593][ T510] cgroup_apply_control_enable+0x486/0xf10 [ 97.595379][ T510] cgroup_subtree_control_write+0x6d3/0xd60 [ 97.601439][ T510] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 97.607490][ T510] ? kfree+0xc2/0x560 [ 97.611464][ T510] ? __kasan_slab_free+0x129/0x170 [ 97.616551][ T510] cgroup_file_write+0x272/0x7c0 [ 97.621458][ T510] ? __kasan_check_write+0x14/0x20 [ 97.626551][ T510] ? cgroup_file_poll+0xd0/0xd0 [ 97.631406][ T510] ? __mutex_lock_slowpath+0x10/0x10 [ 97.636671][ T510] ? cgroup_file_poll+0xd0/0xd0 [ 97.641502][ T510] kernfs_fop_write_iter+0x2d5/0x450 [ 97.646770][ T510] new_sync_write+0x358/0x6e0 [ 97.651426][ T510] ? new_sync_read+0x6e0/0x6e0 [ 97.656163][ T510] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 97.662892][ T510] ? rw_verify_area+0xc3/0x2b0 [ 97.667625][ T510] vfs_write+0x4f5/0x750 [ 97.671854][ T510] ksys_write+0x111/0x210 [ 97.676166][ T510] ? __ia32_sys_read+0xa0/0xa0 [ 97.681029][ T510] ? debug_smp_processor_id+0x17/0x20 [ 97.686380][ T510] ? fpregs_assert_state_consistent+0x49/0xb0 [ 97.692432][ T510] __x64_sys_write+0x6e/0xb0 [ 97.697005][ T510] ? syscall_exit_to_user_mode+0x27/0x160 [ 97.702829][ T510] do_syscall_64+0x32/0x80 [ 97.707583][ T510] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 97.713453][ T510] RIP: 0033:0x7fabe7ed7ce9 [ 97.717842][ T510] 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 [ 97.737440][ T510] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 97.745822][ T510] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 97.753763][ T510] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 97.761703][ T510] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 97.769734][ T510] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 97.777680][ T510] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000b [ 97.818270][ T515] FAULT_INJECTION: forcing a failure. [ 97.818270][ T515] name failslab, interval 1, probability 0, space 0, times 0 [ 97.831137][ T515] CPU: 0 PID: 515 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 97.841249][ T515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.851282][ T515] Call Trace: [ 97.854547][ T515] dump_stack+0x84/0xad [ 97.858779][ T515] should_fail.cold+0x5/0x1f [ 97.863455][ T515] ? find_next_bit+0x14/0x20 [ 97.868013][ T515] ? cgroup_exit_cftypes+0x150/0x150 [ 97.873264][ T515] ? percpu_ref_init+0xd1/0x380 [ 97.878085][ T515] __should_failslab+0xd8/0x120 [ 97.882995][ T515] should_failslab+0x9/0x20 [ 97.887467][ T515] kmem_cache_alloc_trace+0x3d/0x330 [ 97.892733][ T515] ? cgroup_exit_cftypes+0x150/0x150 [ 97.898190][ T515] percpu_ref_init+0xd1/0x380 [ 97.902942][ T515] cgroup_apply_control_enable+0x486/0xf10 [ 97.908725][ T515] cgroup_subtree_control_write+0x6d3/0xd60 [ 97.914721][ T515] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 97.921016][ T515] ? kfree+0xc2/0x560 [ 97.924980][ T515] ? __kasan_slab_free+0x129/0x170 [ 97.930169][ T515] cgroup_file_write+0x272/0x7c0 [ 97.935110][ T515] ? __kasan_check_write+0x14/0x20 [ 97.940202][ T515] ? cgroup_file_poll+0xd0/0xd0 [ 97.945031][ T515] ? __mutex_lock_slowpath+0x10/0x10 [ 97.950346][ T515] ? cgroup_file_poll+0xd0/0xd0 [ 97.955190][ T515] kernfs_fop_write_iter+0x2d5/0x450 [ 97.960463][ T515] new_sync_write+0x358/0x6e0 [ 97.965117][ T515] ? new_sync_read+0x6e0/0x6e0 [ 97.970071][ T515] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 97.976818][ T515] ? rw_verify_area+0xc3/0x2b0 [ 97.981839][ T515] vfs_write+0x4f5/0x750 [ 97.986068][ T515] ksys_write+0x111/0x210 [ 97.990469][ T515] ? __ia32_sys_read+0xa0/0xa0 [ 97.995207][ T515] ? debug_smp_processor_id+0x17/0x20 [ 98.000552][ T515] ? fpregs_assert_state_consistent+0x49/0xb0 [ 98.006585][ T515] __x64_sys_write+0x6e/0xb0 [ 98.011233][ T515] ? syscall_exit_to_user_mode+0x27/0x160 [ 98.016921][ T515] do_syscall_64+0x32/0x80 [ 98.021311][ T515] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 98.027191][ T515] RIP: 0033:0x7fabe7ed7ce9 [ 98.036994][ T515] 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 [ 98.056581][ T515] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 98.064966][ T515] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 98.072915][ T515] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 98.080907][ T515] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 98.088848][ T515] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 98.096889][ T515] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000008 [ 98.148157][ T517] FAULT_INJECTION: forcing a failure. [ 98.148157][ T517] name failslab, interval 1, probability 0, space 0, times 0 [ 98.161114][ T517] CPU: 0 PID: 517 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 98.171144][ T517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.181782][ T517] Call Trace: [ 98.185046][ T517] dump_stack+0x84/0xad [ 98.189172][ T517] should_fail.cold+0x5/0x1f [ 98.193758][ T517] __should_failslab+0xd8/0x120 [ 98.198582][ T517] should_failslab+0x9/0x20 [ 98.203062][ T517] __kmalloc_track_caller+0x5c/0x360 [ 98.208323][ T517] ? __kernfs_new_node+0xaa/0x680 [ 98.213317][ T517] kstrdup_const+0x45/0x70 [ 98.217707][ T517] __kernfs_new_node+0xaa/0x680 [ 98.222525][ T517] ? kernfs_dop_revalidate+0x370/0x370 [ 98.227951][ T517] ? kasan_save_stack+0x42/0x50 [ 98.232806][ T517] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 98.238708][ T517] ? kasan_kmalloc+0x9/0x10 [ 98.243191][ T517] ? snprintf+0x9e/0xd0 [ 98.247323][ T517] ? vsprintf+0x20/0x20 [ 98.251453][ T517] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 98.257490][ T517] ? do_syscall_64+0x32/0x80 [ 98.262057][ T517] kernfs_new_node+0x79/0x110 [ 98.266716][ T517] ? __kasan_check_write+0x14/0x20 [ 98.271875][ T517] __kernfs_create_file+0x24/0x270 [ 98.276994][ T517] cgroup_addrm_files+0x2e2/0x830 [ 98.281994][ T517] ? cgroup_show_path+0x3d0/0x3d0 [ 98.286989][ T517] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 98.292343][ T517] ? __radix_tree_replace+0xd0/0x250 [ 98.297598][ T517] ? idr_replace+0x138/0x150 [ 98.302176][ T517] ? idr_get_next+0x130/0x130 [ 98.306829][ T517] css_populate_dir+0x17a/0x400 [ 98.311665][ T517] cgroup_apply_control_enable+0x39c/0xf10 [ 98.317467][ T517] cgroup_subtree_control_write+0x6d3/0xd60 [ 98.323339][ T517] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 98.329374][ T517] ? kfree+0xc2/0x560 [ 98.333400][ T517] ? __kasan_slab_free+0x129/0x170 [ 98.338501][ T517] cgroup_file_write+0x272/0x7c0 [ 98.343428][ T517] ? __kasan_check_write+0x14/0x20 [ 98.348523][ T517] ? cgroup_file_poll+0xd0/0xd0 [ 98.353375][ T517] ? __mutex_lock_slowpath+0x10/0x10 [ 98.358635][ T517] ? cgroup_file_poll+0xd0/0xd0 [ 98.363459][ T517] kernfs_fop_write_iter+0x2d5/0x450 [ 98.368715][ T517] new_sync_write+0x358/0x6e0 [ 98.373363][ T517] ? new_sync_read+0x6e0/0x6e0 [ 98.378098][ T517] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 98.384826][ T517] ? rw_verify_area+0xc3/0x2b0 [ 98.389560][ T517] vfs_write+0x4f5/0x750 [ 98.393772][ T517] ksys_write+0x111/0x210 [ 98.398070][ T517] ? __ia32_sys_read+0xa0/0xa0 [ 98.402802][ T517] ? debug_smp_processor_id+0x17/0x20 [ 98.408434][ T517] ? fpregs_assert_state_consistent+0x49/0xb0 [ 98.414477][ T517] __x64_sys_write+0x6e/0xb0 [ 98.419168][ T517] ? syscall_exit_to_user_mode+0x27/0x160 [ 98.424866][ T517] do_syscall_64+0x32/0x80 [ 98.429295][ T517] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 98.435157][ T517] RIP: 0033:0x7fabe7ed7ce9 [ 98.439552][ T517] 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 [ 98.459263][ T517] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 98.467650][ T517] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 98.475674][ T517] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 98.483641][ T517] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 98.491588][ T517] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 98.499564][ T517] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000c [ 98.507803][ T517] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 98.516608][ T420] ------------[ cut here ]------------ [ 98.522295][ T420] WARNING: CPU: 1 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 98.531255][ T420] Modules linked in: [ 98.535275][ T420] CPU: 1 PID: 420 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 98.545282][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.555690][ T420] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 98.561332][ T420] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 98.581478][ T420] RSP: 0018:ffffc90000747c28 EFLAGS: 00010286 [ 98.587557][ T420] RAX: 0000000000000000 RBX: 1ffff920000e8f8c RCX: 0000000000000002 [ 98.595548][ T420] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 98.603744][ T420] RBP: ffffc90000747ce8 R08: 0000000000000000 R09: 0000000000000008 [ 98.611743][ T420] R10: fffff520000e8f78 R11: ffff8881f7155bc0 R12: ffffc90000747c80 [ 98.619921][ T420] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810d602c00 [ 98.627907][ T420] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 98.636820][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.643422][ T420] CR2: 00007ffc76d2fff8 CR3: 0000000107efc000 CR4: 00000000003506a0 [ 98.651429][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.659411][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.667385][ T420] Call Trace: [ 98.670681][ T420] ? clone_private_mount+0x300/0x300 [ 98.675951][ T420] ? change_mnt_propagation+0x5df/0xd40 [ 98.681502][ T420] namespace_unlock+0x331/0x3e0 [ 98.686331][ T420] ? kern_unmount+0xb0/0xb0 [ 98.690834][ T420] ? unhash_mnt+0x3b0/0x3b0 [ 98.695362][ T420] path_umount+0x665/0x1170 [ 98.699958][ T420] ? __detach_mounts+0x210/0x210 [ 98.704882][ T420] ? user_path_at_empty+0xa2/0xf0 [ 98.709916][ T420] __x64_sys_umount+0xfb/0x120 [ 98.714662][ T420] ? path_umount+0x1170/0x1170 [ 98.719446][ T420] ? fpregs_assert_state_consistent+0x49/0xb0 [ 98.725492][ T420] ? exit_to_user_mode_prepare+0x30/0xe0 [ 98.731124][ T420] do_syscall_64+0x32/0x80 [ 98.735546][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 98.741431][ T420] RIP: 0033:0x7fabe7ed9097 [ 98.746043][ T420] 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 [ 98.766393][ T420] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 98.774823][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 98.782805][ T420] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 98.790885][ T420] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 98.798864][ T420] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 98.806904][ T420] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000d [ 98.814973][ T420] ---[ end trace a21a7dc9bb3febf4 ]--- [ 98.820788][ T420] ------------[ cut here ]------------ [ 98.826450][ T420] WARNING: CPU: 0 PID: 420 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 98.835477][ T420] Modules linked in: [ 98.838239][ T511] FAULT_INJECTION: forcing a failure. [ 98.838239][ T511] name failslab, interval 1, probability 0, space 0, times 0 [ 98.839458][ T420] CPU: 0 PID: 420 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 98.852284][ T511] CPU: 1 PID: 511 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 98.862143][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.871983][ T511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.871986][ T511] Call Trace: [ 98.872000][ T511] dump_stack+0x84/0xad [ 98.872005][ T511] should_fail.cold+0x5/0x1f [ 98.872014][ T511] ? find_next_bit+0x14/0x20 [ 98.872025][ T511] ? cgroup_exit_cftypes+0x150/0x150 [ 98.882061][ T420] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 98.892162][ T511] ? percpu_ref_init+0xd1/0x380 [ 98.892168][ T511] __should_failslab+0xd8/0x120 [ 98.892177][ T511] should_failslab+0x9/0x20 [ 98.895432][ T420] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 98.899551][ T511] kmem_cache_alloc_trace+0x3d/0x330 [ 98.899557][ T511] ? cgroup_exit_cftypes+0x150/0x150 [ 98.899563][ T511] percpu_ref_init+0xd1/0x380 [ 98.904115][ T420] RSP: 0018:ffffc90000747cf0 EFLAGS: 00010282 [ 98.908668][ T511] cgroup_apply_control_enable+0x486/0xf10 [ 98.908674][ T511] cgroup_subtree_control_write+0x6d3/0xd60 [ 98.908680][ T511] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 98.913929][ T420] [ 98.919615][ T511] ? kfree+0xc2/0x560 [ 98.919620][ T511] ? __kasan_slab_free+0x129/0x170 [ 98.919625][ T511] cgroup_file_write+0x272/0x7c0 [ 98.919631][ T511] ? __kasan_check_write+0x14/0x20 [ 98.924552][ T420] RAX: 0000000000000000 RBX: 1ffff920000e8fa5 RCX: 0000000000000002 [ 98.929368][ T511] ? cgroup_file_poll+0xd0/0xd0 [ 98.929374][ T511] ? __mutex_lock_slowpath+0x10/0x10 [ 98.929381][ T511] ? cgroup_file_poll+0xd0/0xd0 [ 98.933851][ T420] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 98.953462][ T511] kernfs_fop_write_iter+0x2d5/0x450 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 98.953471][ T511] new_sync_write+0x358/0x6e0 [ 98.953475][ T511] ? new_sync_read+0x6e0/0x6e0 [ 98.953482][ T511] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 98.953492][ T511] ? rw_verify_area+0xc3/0x2b0 [ 98.958764][ T420] RBP: ffffc90000747db0 R08: 0000000000000000 R09: 0000000000000008 [ 98.964008][ T511] vfs_write+0x4f5/0x750 [ 98.968656][ T420] R10: fffff520000e8f91 R11: ffff8881f7155bc0 R12: ffffc90000747d48 [ 98.974679][ T511] ksys_write+0x111/0x210 [ 98.980543][ T420] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d602c00 [ 98.986391][ T511] ? __ia32_sys_read+0xa0/0xa0 [ 98.992444][ T420] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 98.994766][ T511] ? debug_smp_processor_id+0x17/0x20 [ 98.998760][ T420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.003796][ T511] ? fpregs_assert_state_consistent+0x49/0xb0 [ 99.008706][ T420] CR2: 00007ffc76d31368 CR3: 0000000107efc000 CR4: 00000000003506b0 [ 99.013771][ T511] __x64_sys_write+0x6e/0xb0 [ 99.021916][ T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.026741][ T511] ? syscall_exit_to_user_mode+0x27/0x160 [ 99.032018][ T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.036809][ T511] do_syscall_64+0x32/0x80 [ 99.044773][ T420] Call Trace: [ 99.050274][ T511] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 99.050280][ T511] RIP: 0033:0x7fabe7ed7ce9 [ 99.050290][ T511] 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 [ 99.054947][ T420] ? namespace_unlock+0x331/0x3e0 [ 99.059681][ T511] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 99.059688][ T511] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 99.059690][ T511] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 99.059693][ T511] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 99.059699][ T511] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 99.066428][ T420] ? clone_private_mount+0x300/0x300 [ 99.071146][ T511] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000b [ 99.265675][ T420] ? dput+0xac/0x8a0 [ 99.269566][ T420] path_umount+0x6a3/0x1170 [ 99.274065][ T420] ? __detach_mounts+0x210/0x210 [ 99.278992][ T420] ? user_path_at_empty+0xa2/0xf0 [ 99.284019][ T420] __x64_sys_umount+0xfb/0x120 [ 99.288778][ T420] ? path_umount+0x1170/0x1170 [ 99.293537][ T420] ? fpregs_assert_state_consistent+0x49/0xb0 [ 99.299601][ T420] ? exit_to_user_mode_prepare+0x30/0xe0 [ 99.305223][ T420] do_syscall_64+0x32/0x80 [ 99.309635][ T420] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 99.315507][ T420] RIP: 0033:0x7fabe7ed9097 [ 99.319949][ T420] 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 [ 99.339549][ T420] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 99.348065][ T420] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 99.356211][ T420] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 99.364183][ T420] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 99.372143][ T420] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 99.382290][ T420] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000d [ 99.390256][ T420] ---[ end trace a21a7dc9bb3febf5 ]--- [ 99.408509][ T518] FAULT_INJECTION: forcing a failure. [ 99.408509][ T518] name failslab, interval 1, probability 0, space 0, times 0 [ 99.421283][ T518] CPU: 1 PID: 518 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 99.431326][ T518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.441396][ T518] Call Trace: [ 99.444667][ T518] dump_stack+0x84/0xad [ 99.448795][ T518] should_fail.cold+0x5/0x1f [ 99.453364][ T518] ? pids_css_alloc+0x3c/0x130 [ 99.458111][ T518] __should_failslab+0xd8/0x120 [ 99.462944][ T518] should_failslab+0x9/0x20 [ 99.467436][ T518] kmem_cache_alloc_trace+0x3d/0x330 [ 99.472711][ T518] pids_css_alloc+0x3c/0x130 [ 99.477287][ T518] cgroup_apply_control_enable+0x432/0xf10 [ 99.483084][ T518] cgroup_subtree_control_write+0x6d3/0xd60 [ 99.488972][ T518] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 99.495024][ T518] ? kfree+0xc2/0x560 [ 99.499069][ T518] ? __kasan_slab_free+0x129/0x170 [ 99.504168][ T518] cgroup_file_write+0x272/0x7c0 [ 99.509089][ T518] ? __kasan_check_write+0x14/0x20 [ 99.514168][ T518] ? cgroup_file_poll+0xd0/0xd0 [ 99.518995][ T518] ? __mutex_lock_slowpath+0x10/0x10 [ 99.524245][ T518] ? cgroup_file_poll+0xd0/0xd0 [ 99.529063][ T518] kernfs_fop_write_iter+0x2d5/0x450 [ 99.534324][ T518] new_sync_write+0x358/0x6e0 [ 99.539066][ T518] ? new_sync_read+0x6e0/0x6e0 [ 99.543800][ T518] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 99.550641][ T518] ? rw_verify_area+0xc3/0x2b0 [ 99.555843][ T518] vfs_write+0x4f5/0x750 [ 99.560055][ T518] ksys_write+0x111/0x210 [ 99.564365][ T518] ? __ia32_sys_read+0xa0/0xa0 [ 99.569105][ T518] ? debug_smp_processor_id+0x17/0x20 [ 99.574472][ T518] ? fpregs_assert_state_consistent+0x49/0xb0 [ 99.580521][ T518] __x64_sys_write+0x6e/0xb0 [ 99.585096][ T518] ? syscall_exit_to_user_mode+0x27/0x160 [ 99.590781][ T518] do_syscall_64+0x32/0x80 [ 99.595270][ T518] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 99.601145][ T518] RIP: 0033:0x7fabe7ed7ce9 [ 99.605538][ T518] 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 [ 99.625115][ T518] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 99.633496][ T518] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 99.641711][ T518] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 99.650195][ T518] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 99.658321][ T518] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 99.666267][ T518] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000009 [ 99.708068][ T514] FAULT_INJECTION: forcing a failure. [ 99.708068][ T514] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 99.721640][ T514] CPU: 0 PID: 514 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 99.731507][ T514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.741544][ T514] Call Trace: [ 99.744832][ T514] dump_stack+0x84/0xad [ 99.748966][ T514] should_fail.cold+0x5/0x1f [ 99.753535][ T514] ? kernfs_dop_revalidate+0x370/0x370 [ 99.759142][ T514] should_fail_alloc_page+0x74/0x90 [ 99.764312][ T514] __alloc_pages_nodemask+0x132/0x5d0 [ 99.769657][ T514] ? mutex_lock+0x79/0xd0 [ 99.773963][ T514] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 99.780724][ T514] ? delegate_show+0x200/0x200 [ 99.785650][ T514] ? _raw_spin_lock_irq+0x87/0x120 [ 99.790731][ T514] ? _raw_spin_lock+0x120/0x120 [ 99.795567][ T514] allocate_slab+0x367/0x4c0 [ 99.800591][ T514] ___slab_alloc.constprop.0+0x240/0x760 [ 99.806199][ T514] ? pids_css_alloc+0x3c/0x130 [ 99.810942][ T514] ? cgroup_show_path+0x3d0/0x3d0 [ 99.815946][ T514] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 99.821284][ T514] ? __radix_tree_replace+0xd0/0x250 [ 99.826540][ T514] ? pids_css_alloc+0x3c/0x130 [ 99.831275][ T514] ? pids_css_alloc+0x3c/0x130 [ 99.836043][ T514] kmem_cache_alloc_trace+0x2c6/0x330 [ 99.841506][ T514] pids_css_alloc+0x3c/0x130 [ 99.846074][ T514] cgroup_apply_control_enable+0x432/0xf10 [ 99.851852][ T514] cgroup_subtree_control_write+0x6d3/0xd60 [ 99.857719][ T514] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 99.863757][ T514] ? kfree+0xc2/0x560 [ 99.867794][ T514] ? __kasan_slab_free+0x129/0x170 [ 99.872875][ T514] cgroup_file_write+0x272/0x7c0 [ 99.877784][ T514] ? __kasan_check_write+0x14/0x20 [ 99.882877][ T514] ? cgroup_file_poll+0xd0/0xd0 [ 99.887717][ T514] ? __mutex_lock_slowpath+0x10/0x10 [ 99.893168][ T514] ? cgroup_file_poll+0xd0/0xd0 [ 99.897989][ T514] kernfs_fop_write_iter+0x2d5/0x450 [ 99.903259][ T514] new_sync_write+0x358/0x6e0 [ 99.907966][ T514] ? new_sync_read+0x6e0/0x6e0 [ 99.912714][ T514] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 99.919552][ T514] ? rw_verify_area+0xc3/0x2b0 [ 99.924959][ T514] vfs_write+0x4f5/0x750 [ 99.929175][ T514] ksys_write+0x111/0x210 [ 99.933483][ T514] ? __ia32_sys_read+0xa0/0xa0 [ 99.938586][ T514] ? debug_smp_processor_id+0x17/0x20 [ 99.944211][ T514] ? fpregs_assert_state_consistent+0x49/0xb0 [ 99.950252][ T514] __x64_sys_write+0x6e/0xb0 [ 99.954828][ T514] ? syscall_exit_to_user_mode+0x27/0x160 [ 99.960608][ T514] do_syscall_64+0x32/0x80 [ 99.965013][ T514] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 99.970879][ T514] RIP: 0033:0x7fabe7ed7ce9 [ 99.975260][ T514] 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 [ 99.994851][ T514] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 100.003238][ T514] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 100.011192][ T514] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 100.019144][ T514] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 100.027230][ T514] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 100.035179][ T514] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000015 [ 100.078218][ T516] FAULT_INJECTION: forcing a failure. [ 100.078218][ T516] name failslab, interval 1, probability 0, space 0, times 0 [ 100.091072][ T516] CPU: 0 PID: 516 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 100.100943][ T516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.111845][ T516] Call Trace: [ 100.115114][ T516] dump_stack+0x84/0xad [ 100.119255][ T516] should_fail.cold+0x5/0x1f [ 100.123840][ T516] ? pids_css_alloc+0x3c/0x130 [ 100.129107][ T516] __should_failslab+0xd8/0x120 [ 100.133941][ T516] should_failslab+0x9/0x20 [ 100.138442][ T516] kmem_cache_alloc_trace+0x3d/0x330 [ 100.143918][ T516] pids_css_alloc+0x3c/0x130 [ 100.148604][ T516] cgroup_apply_control_enable+0x432/0xf10 [ 100.154404][ T516] cgroup_subtree_control_write+0x6d3/0xd60 [ 100.160476][ T516] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 100.166529][ T516] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 100.172329][ T516] cgroup_file_write+0x272/0x7c0 [ 100.177242][ T516] ? __kasan_check_write+0x14/0x20 [ 100.182321][ T516] ? cgroup_file_poll+0xd0/0xd0 [ 100.187146][ T516] ? __mutex_lock_slowpath+0x10/0x10 [ 100.192489][ T516] ? cgroup_file_poll+0xd0/0xd0 [ 100.197310][ T516] kernfs_fop_write_iter+0x2d5/0x450 [ 100.202566][ T516] new_sync_write+0x358/0x6e0 [ 100.207209][ T516] ? new_sync_read+0x6e0/0x6e0 [ 100.212113][ T516] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 100.218845][ T516] ? rw_verify_area+0xc3/0x2b0 [ 100.223592][ T516] vfs_write+0x4f5/0x750 [ 100.227810][ T516] ksys_write+0x111/0x210 [ 100.232291][ T516] ? __ia32_sys_read+0xa0/0xa0 [ 100.237044][ T516] ? debug_smp_processor_id+0x17/0x20 [ 100.242399][ T516] ? fpregs_assert_state_consistent+0x49/0xb0 [ 100.248450][ T516] __x64_sys_write+0x6e/0xb0 [ 100.253021][ T516] ? syscall_exit_to_user_mode+0x27/0x160 [ 100.258808][ T516] do_syscall_64+0x32/0x80 [ 100.263308][ T516] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 100.269168][ T516] RIP: 0033:0x7fabe7ed7ce9 [ 100.273587][ T516] 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 [ 100.293859][ T516] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 100.302253][ T516] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 100.310211][ T516] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 100.318152][ T516] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 100.326103][ T516] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 100.334044][ T516] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000008 [ 100.368265][ T523] FAULT_INJECTION: forcing a failure. [ 100.368265][ T523] name failslab, interval 1, probability 0, space 0, times 0 [ 100.381769][ T523] CPU: 0 PID: 523 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 100.391648][ T523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.401763][ T523] Call Trace: [ 100.405026][ T523] dump_stack+0x84/0xad [ 100.409151][ T523] should_fail.cold+0x5/0x1f [ 100.413728][ T523] __should_failslab+0xd8/0x120 [ 100.418553][ T523] should_failslab+0x9/0x20 [ 100.423145][ T523] __kmalloc_track_caller+0x5c/0x360 [ 100.428406][ T523] ? __kernfs_new_node+0xaa/0x680 [ 100.433419][ T523] kstrdup_const+0x45/0x70 [ 100.437811][ T523] __kernfs_new_node+0xaa/0x680 [ 100.442636][ T523] ? kernfs_dop_revalidate+0x370/0x370 [ 100.448064][ T523] ? kasan_save_stack+0x42/0x50 [ 100.452881][ T523] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 100.458655][ T523] ? kasan_kmalloc+0x9/0x10 [ 100.463128][ T523] ? snprintf+0x9e/0xd0 [ 100.467252][ T523] ? vsprintf+0x20/0x20 [ 100.471388][ T523] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 100.477587][ T523] ? do_syscall_64+0x32/0x80 [ 100.482175][ T523] kernfs_new_node+0x79/0x110 [ 100.486824][ T523] ? __kasan_check_write+0x14/0x20 [ 100.491915][ T523] __kernfs_create_file+0x24/0x270 [ 100.497177][ T523] cgroup_addrm_files+0x2e2/0x830 [ 100.502188][ T523] ? cgroup_show_path+0x3d0/0x3d0 [ 100.507183][ T523] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 100.512524][ T523] ? __radix_tree_replace+0xd0/0x250 [ 100.517793][ T523] ? idr_replace+0x138/0x150 [ 100.522439][ T523] ? idr_get_next+0x130/0x130 [ 100.527081][ T523] css_populate_dir+0x17a/0x400 [ 100.532153][ T523] cgroup_apply_control_enable+0x39c/0xf10 [ 100.537946][ T523] cgroup_subtree_control_write+0x6d3/0xd60 [ 100.543820][ T523] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 100.549870][ T523] ? kfree+0xc2/0x560 [ 100.553911][ T523] ? __kasan_slab_free+0x129/0x170 [ 100.558997][ T523] cgroup_file_write+0x272/0x7c0 [ 100.563905][ T523] ? __kasan_check_write+0x14/0x20 [ 100.569086][ T523] ? cgroup_file_poll+0xd0/0xd0 [ 100.573934][ T523] ? __mutex_lock_slowpath+0x10/0x10 [ 100.579191][ T523] ? cgroup_file_poll+0xd0/0xd0 [ 100.584015][ T523] kernfs_fop_write_iter+0x2d5/0x450 [ 100.589274][ T523] new_sync_write+0x358/0x6e0 [ 100.593925][ T523] ? new_sync_read+0x6e0/0x6e0 [ 100.598669][ T523] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 100.605397][ T523] ? rw_verify_area+0xc3/0x2b0 [ 100.610132][ T523] vfs_write+0x4f5/0x750 [ 100.614345][ T523] ksys_write+0x111/0x210 [ 100.618641][ T523] ? __ia32_sys_read+0xa0/0xa0 [ 100.623377][ T523] ? debug_smp_processor_id+0x17/0x20 [ 100.628725][ T523] ? fpregs_assert_state_consistent+0x49/0xb0 [ 100.634763][ T523] __x64_sys_write+0x6e/0xb0 [ 100.639323][ T523] ? syscall_exit_to_user_mode+0x27/0x160 [ 100.645073][ T523] do_syscall_64+0x32/0x80 [ 100.649584][ T523] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 100.655535][ T523] RIP: 0033:0x7fabe7ed7ce9 [ 100.659920][ T523] 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 [ 100.679501][ T523] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 100.687906][ T523] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 100.695871][ T523] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 100.703901][ T523] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 100.711846][ T523] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 100.719802][ T523] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000009 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 100.728629][ T523] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 100.798138][ T513] FAULT_INJECTION: forcing a failure. [ 100.798138][ T513] name failslab, interval 1, probability 0, space 0, times 0 [ 100.810787][ T513] CPU: 1 PID: 513 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 100.820820][ T513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.831105][ T513] Call Trace: [ 100.834386][ T513] dump_stack+0x84/0xad [ 100.838685][ T513] should_fail.cold+0x5/0x1f [ 100.843270][ T513] ? find_next_bit+0x14/0x20 [ 100.847834][ T513] ? cgroup_exit_cftypes+0x150/0x150 [ 100.853088][ T513] ? percpu_ref_init+0xd1/0x380 [ 100.857910][ T513] __should_failslab+0xd8/0x120 [ 100.862750][ T513] should_failslab+0x9/0x20 [ 100.867221][ T513] kmem_cache_alloc_trace+0x3d/0x330 [ 100.872496][ T513] ? cgroup_exit_cftypes+0x150/0x150 [ 100.877752][ T513] percpu_ref_init+0xd1/0x380 [ 100.882396][ T513] cgroup_apply_control_enable+0x486/0xf10 [ 100.888171][ T513] cgroup_subtree_control_write+0x6d3/0xd60 [ 100.894041][ T513] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 100.900089][ T513] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 100.906847][ T513] cgroup_file_write+0x272/0x7c0 [ 100.911760][ T513] ? __kasan_check_write+0x14/0x20 [ 100.916842][ T513] ? cgroup_file_poll+0xd0/0xd0 [ 100.921673][ T513] ? __mutex_lock_slowpath+0x10/0x10 [ 100.926938][ T513] ? cgroup_file_poll+0xd0/0xd0 [ 100.931762][ T513] kernfs_fop_write_iter+0x2d5/0x450 [ 100.937282][ T513] new_sync_write+0x358/0x6e0 [ 100.941929][ T513] ? new_sync_read+0x6e0/0x6e0 [ 100.946662][ T513] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 100.953409][ T513] ? rw_verify_area+0xc3/0x2b0 [ 100.958143][ T513] vfs_write+0x4f5/0x750 [ 100.962359][ T513] ksys_write+0x111/0x210 [ 100.966657][ T513] ? __ia32_sys_read+0xa0/0xa0 [ 100.971562][ T513] ? debug_smp_processor_id+0x17/0x20 [ 100.976920][ T513] ? fpregs_assert_state_consistent+0x49/0xb0 [ 100.982975][ T513] __x64_sys_write+0x6e/0xb0 [ 100.987531][ T513] ? syscall_exit_to_user_mode+0x27/0x160 [ 100.993214][ T513] do_syscall_64+0x32/0x80 [ 100.997597][ T513] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 101.003457][ T513] RIP: 0033:0x7fabe7ed7ce9 [ 101.007840][ T513] 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 [ 101.027420][ T513] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 101.035820][ T513] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 101.043942][ T513] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 101.052079][ T513] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 101.060029][ T513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 101.067981][ T513] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000006 [ 101.080225][ T424] ------------[ cut here ]------------ [ 101.085819][ T424] WARNING: CPU: 1 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 101.094959][ T424] Modules linked in: [ 101.098193][ T521] FAULT_INJECTION: forcing a failure. [ 101.098193][ T521] name failslab, interval 1, probability 0, space 0, times 0 [ 101.098873][ T424] CPU: 1 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 101.111759][ T521] CPU: 0 PID: 521 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 101.121315][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.131141][ T521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.131144][ T521] Call Trace: [ 101.131159][ T521] dump_stack+0x84/0xad [ 101.131164][ T521] should_fail.cold+0x5/0x1f [ 101.131172][ T521] ? pids_css_alloc+0x3c/0x130 [ 101.131179][ T521] __should_failslab+0xd8/0x120 [ 101.131185][ T521] should_failslab+0x9/0x20 [ 101.131191][ T521] kmem_cache_alloc_trace+0x3d/0x330 [ 101.131198][ T521] pids_css_alloc+0x3c/0x130 [ 101.141243][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 101.151333][ T521] cgroup_apply_control_enable+0x432/0xf10 [ 101.151339][ T521] cgroup_subtree_control_write+0x6d3/0xd60 [ 101.151347][ T521] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 101.154599][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 101.158714][ T521] ? kfree+0xc2/0x560 [ 101.158719][ T521] ? __kasan_slab_free+0x129/0x170 [ 101.158727][ T521] cgroup_file_write+0x272/0x7c0 [ 101.158730][ T521] ? __kasan_check_write+0x14/0x20 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 101.158734][ T521] ? cgroup_file_poll+0xd0/0xd0 [ 101.158741][ T521] ? __mutex_lock_slowpath+0x10/0x10 [ 101.158747][ T521] ? cgroup_file_poll+0xd0/0xd0 [ 101.163346][ T424] RSP: 0018:ffffc900007b7c28 EFLAGS: 00010286 [ 101.168089][ T521] kernfs_fop_write_iter+0x2d5/0x450 [ 101.168098][ T521] new_sync_write+0x358/0x6e0 [ 101.168104][ T521] ? new_sync_read+0x6e0/0x6e0 [ 101.172915][ T424] [ 101.177386][ T521] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 101.182645][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6f8c RCX: 0000000000000002 [ 101.187196][ T521] ? rw_verify_area+0xc3/0x2b0 [ 101.192821][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 101.198566][ T521] vfs_write+0x4f5/0x750 [ 101.198572][ T521] ksys_write+0x111/0x210 [ 101.198578][ T521] ? __ia32_sys_read+0xa0/0xa0 [ 101.204517][ T424] RBP: ffffc900007b7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 101.210547][ T521] ? debug_smp_processor_id+0x17/0x20 [ 101.210556][ T521] ? fpregs_assert_state_consistent+0x49/0xb0 [ 101.210563][ T521] __x64_sys_write+0x6e/0xb0 [ 101.230147][ T424] R10: fffff520000f6f78 R11: ffff8881f7155bc0 R12: ffffc900007b7c80 [ 101.234084][ T521] ? syscall_exit_to_user_mode+0x27/0x160 [ 101.239258][ T424] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810d686a80 [ 101.244159][ T521] do_syscall_64+0x32/0x80 [ 101.249266][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 101.254069][ T521] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 101.259327][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.264128][ T521] RIP: 0033:0x7fabe7ed7ce9 [ 101.270163][ T424] CR2: 00007ffc76d31368 CR3: 0000000116c61000 CR4: 00000000003506a0 [ 101.275494][ T521] 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 [ 101.280145][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.284858][ T521] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 [ 101.287164][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.293882][ T521] ORIG_RAX: 0000000000000001 [ 101.293885][ T521] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 101.293887][ T521] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 101.293890][ T521] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 101.293892][ T521] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 101.293895][ T521] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000a [ 101.497873][ T424] Call Trace: [ 101.501140][ T424] ? clone_private_mount+0x300/0x300 [ 101.506391][ T424] ? change_mnt_propagation+0x5df/0xd40 [ 101.511928][ T424] namespace_unlock+0x331/0x3e0 [ 101.516767][ T424] ? kern_unmount+0xb0/0xb0 [ 101.521294][ T424] ? unhash_mnt+0x3b0/0x3b0 [ 101.525860][ T424] path_umount+0x665/0x1170 [ 101.530356][ T424] ? __detach_mounts+0x210/0x210 [ 101.535284][ T424] ? user_path_at_empty+0xa2/0xf0 [ 101.540490][ T424] __x64_sys_umount+0xfb/0x120 [ 101.545228][ T424] ? path_umount+0x1170/0x1170 [ 101.549995][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 101.556057][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 101.561713][ T424] do_syscall_64+0x32/0x80 [ 101.566116][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 101.572006][ T424] RIP: 0033:0x7fabe7ed9097 [ 101.576396][ T424] 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 [ 101.596172][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 101.604581][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 101.612745][ T424] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 101.620706][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 101.628680][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 101.636637][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000007 [ 101.644626][ T424] ---[ end trace a21a7dc9bb3febf6 ]--- [ 101.650142][ T424] ------------[ cut here ]------------ [ 101.655634][ T424] WARNING: CPU: 0 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 101.664653][ T424] Modules linked in: [ 101.668531][ T424] CPU: 0 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 101.678473][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.688604][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 101.694204][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 101.713815][ T424] RSP: 0018:ffffc900007b7cf0 EFLAGS: 00010282 [ 101.719981][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6fa5 RCX: 0000000000000002 [ 101.727936][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 101.735880][ T424] RBP: ffffc900007b7db0 R08: 0000000000000000 R09: 0000000000000008 [ 101.743833][ T424] R10: fffff520000f6f91 R11: ffff8881f7155bc0 R12: ffffc900007b7d48 [ 101.751888][ T424] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d686a80 [ 101.760083][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 101.769011][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.775744][ T424] CR2: 00007ffc76d302ac CR3: 0000000116c61000 CR4: 00000000003506b0 [ 101.783740][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.791693][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.799651][ T424] Call Trace: [ 101.802919][ T424] ? namespace_unlock+0x331/0x3e0 [ 101.807927][ T424] ? clone_private_mount+0x300/0x300 [ 101.813194][ T424] ? dput+0xac/0x8a0 [ 101.817068][ T424] path_umount+0x6a3/0x1170 [ 101.821572][ T424] ? __detach_mounts+0x210/0x210 [ 101.826580][ T424] ? user_path_at_empty+0xa2/0xf0 [ 101.831603][ T424] __x64_sys_umount+0xfb/0x120 [ 101.836344][ T424] ? path_umount+0x1170/0x1170 [ 101.841119][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 101.847155][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 101.852801][ T424] do_syscall_64+0x32/0x80 [ 101.857210][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 101.863087][ T424] RIP: 0033:0x7fabe7ed9097 [ 101.869067][ T424] 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 [ 101.888725][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 101.897116][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 101.905080][ T424] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 101.913036][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 101.921159][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 101.929175][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000007 [ 101.937209][ T424] ---[ end trace a21a7dc9bb3febf7 ]--- [ 101.944319][ T421] ------------[ cut here ]------------ [ 101.949833][ T421] WARNING: CPU: 1 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 101.959090][ T421] Modules linked in: [ 101.962964][ T421] CPU: 1 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 101.972838][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.982929][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 101.988553][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 102.008159][ T421] RSP: 0018:ffffc90000757c28 EFLAGS: 00010282 [ 102.014202][ T421] RAX: 0000000000000000 RBX: 1ffff920000eaf8c RCX: 0000000000000002 [ 102.022173][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 102.030136][ T421] RBP: ffffc90000757ce8 R08: 0000000000000000 R09: 0000000000000008 [ 102.038280][ T421] R10: fffff520000eaf78 R11: ffff8881f7155bc0 R12: ffffc90000757c80 [ 102.046228][ T421] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d603800 [ 102.054244][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 102.063170][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.069988][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506a0 [ 102.077987][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 102.086030][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 102.094115][ T421] Call Trace: [ 102.097401][ T421] ? clone_private_mount+0x300/0x300 [ 102.102693][ T421] ? change_mnt_propagation+0x5df/0xd40 [ 102.108235][ T421] namespace_unlock+0x331/0x3e0 [ 102.113058][ T421] ? kern_unmount+0xb0/0xb0 [ 102.117581][ T421] ? unhash_mnt+0x3b0/0x3b0 [ 102.122132][ T421] path_umount+0x665/0x1170 [ 102.126707][ T421] ? __detach_mounts+0x210/0x210 [ 102.131656][ T421] ? user_path_at_empty+0xa2/0xf0 [ 102.136689][ T421] __x64_sys_umount+0xfb/0x120 [ 102.141490][ T421] ? path_umount+0x1170/0x1170 [ 102.146245][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 102.152331][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 102.157962][ T421] do_syscall_64+0x32/0x80 [ 102.162361][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 102.168324][ T421] RIP: 0033:0x7fabe7ed9097 [ 102.172748][ T421] 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 [ 102.192829][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 102.201232][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 102.209201][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 102.217151][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 102.225210][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 102.233175][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000b [ 102.241149][ T421] ---[ end trace a21a7dc9bb3febf8 ]--- [ 102.246679][ T421] ------------[ cut here ]------------ [ 102.252239][ T421] WARNING: CPU: 0 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 102.261260][ T421] Modules linked in: [ 102.265132][ T421] CPU: 0 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 102.275082][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 102.285137][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 102.290847][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 102.310582][ T421] RSP: 0018:ffffc90000757cf0 EFLAGS: 00010282 [ 102.316730][ T421] RAX: 0000000000000000 RBX: 1ffff920000eafa5 RCX: 0000000000000002 [ 102.324858][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 102.332829][ T421] RBP: ffffc90000757db0 R08: 0000000000000000 R09: 0000000000000008 [ 102.340967][ T421] R10: fffff520000eaf91 R11: ffff8881f7155bc0 R12: ffffc90000757d48 [ 102.349058][ T421] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810d603800 [ 102.357006][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 102.366051][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.372631][ T421] CR2: 00007fabe7e8f47e CR3: 0000000109020000 CR4: 00000000003506b0 [ 102.380653][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 102.388702][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 102.396684][ T421] Call Trace: [ 102.399981][ T421] ? namespace_unlock+0x331/0x3e0 [ 102.404987][ T421] ? clone_private_mount+0x300/0x300 [ 102.410267][ T421] ? dput+0xac/0x8a0 [ 102.414145][ T421] path_umount+0x6a3/0x1170 [ 102.421185][ T421] ? __detach_mounts+0x210/0x210 [ 102.426107][ T421] ? user_path_at_empty+0xa2/0xf0 [ 102.431154][ T421] __x64_sys_umount+0xfb/0x120 [ 102.435908][ T421] ? path_umount+0x1170/0x1170 [ 102.440706][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 102.446750][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 102.452413][ T421] do_syscall_64+0x32/0x80 [ 102.456819][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 102.462887][ T421] RIP: 0033:0x7fabe7ed9097 [ 102.467407][ T421] 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 [ 102.487198][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 102.495612][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 102.503641][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 102.511635][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 102.519711][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 102.527662][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000b [ 102.536506][ T421] ---[ end trace a21a7dc9bb3febf9 ]--- [ 102.543750][ T524] FAULT_INJECTION: forcing a failure. [ 102.543750][ T524] name failslab, interval 1, probability 0, space 0, times 0 [ 102.556568][ T524] CPU: 1 PID: 524 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 102.566670][ T524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 102.576702][ T524] Call Trace: [ 102.579981][ T524] dump_stack+0x84/0xad [ 102.584117][ T524] should_fail.cold+0x5/0x1f [ 102.588695][ T524] __should_failslab+0xd8/0x120 [ 102.593813][ T524] should_failslab+0x9/0x20 [ 102.598462][ T524] __kmalloc_track_caller+0x5c/0x360 [ 102.603819][ T524] ? __kernfs_new_node+0xaa/0x680 [ 102.608947][ T524] kstrdup_const+0x45/0x70 [ 102.613463][ T524] __kernfs_new_node+0xaa/0x680 [ 102.618305][ T524] ? kernfs_dop_revalidate+0x370/0x370 [ 102.623912][ T524] ? kasan_save_stack+0x42/0x50 [ 102.628834][ T524] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 102.634607][ T524] ? kasan_kmalloc+0x9/0x10 [ 102.639317][ T524] ? snprintf+0x9e/0xd0 [ 102.643540][ T524] ? vsprintf+0x20/0x20 [ 102.647682][ T524] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 102.653923][ T524] ? do_syscall_64+0x32/0x80 [ 102.658518][ T524] kernfs_new_node+0x79/0x110 [ 102.663187][ T524] ? __kasan_check_write+0x14/0x20 [ 102.668355][ T524] __kernfs_create_file+0x24/0x270 [ 102.673533][ T524] cgroup_addrm_files+0x2e2/0x830 [ 102.678526][ T524] ? cgroup_show_path+0x3d0/0x3d0 [ 102.683520][ T524] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 102.689139][ T524] ? __radix_tree_replace+0xd0/0x250 [ 102.694391][ T524] ? idr_replace+0x138/0x150 [ 102.698949][ T524] ? idr_get_next+0x130/0x130 [ 102.703599][ T524] css_populate_dir+0x17a/0x400 [ 102.708434][ T524] cgroup_apply_control_enable+0x39c/0xf10 [ 102.714310][ T524] cgroup_subtree_control_write+0x6d3/0xd60 [ 102.720181][ T524] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 102.726308][ T524] ? kfree+0xc2/0x560 [ 102.730260][ T524] ? __kasan_slab_free+0x129/0x170 [ 102.735337][ T524] cgroup_file_write+0x272/0x7c0 [ 102.740427][ T524] ? __kasan_check_write+0x14/0x20 [ 102.745726][ T524] ? cgroup_file_poll+0xd0/0xd0 [ 102.750590][ T524] ? __mutex_lock_slowpath+0x10/0x10 [ 102.755942][ T524] ? cgroup_file_poll+0xd0/0xd0 [ 102.760769][ T524] kernfs_fop_write_iter+0x2d5/0x450 [ 102.766122][ T524] new_sync_write+0x358/0x6e0 [ 102.770866][ T524] ? new_sync_read+0x6e0/0x6e0 [ 102.775607][ T524] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 102.782580][ T524] ? rw_verify_area+0xc3/0x2b0 [ 102.787406][ T524] vfs_write+0x4f5/0x750 [ 102.791910][ T524] ksys_write+0x111/0x210 [ 102.796231][ T524] ? __ia32_sys_read+0xa0/0xa0 [ 102.800982][ T524] ? debug_smp_processor_id+0x17/0x20 [ 102.806427][ T524] ? fpregs_assert_state_consistent+0x49/0xb0 [ 102.812468][ T524] __x64_sys_write+0x6e/0xb0 [ 102.817027][ T524] ? syscall_exit_to_user_mode+0x27/0x160 [ 102.822800][ T524] do_syscall_64+0x32/0x80 [ 102.827190][ T524] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 102.833175][ T524] RIP: 0033:0x7fabe7ed7ce9 [ 102.837562][ T524] 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 [ 102.857239][ T524] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 102.865723][ T524] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 102.873940][ T524] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 102.882078][ T524] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 102.890021][ T524] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 102.897969][ T524] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000a write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 102.907942][ T524] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 102.938080][ T519] FAULT_INJECTION: forcing a failure. [ 102.938080][ T519] name failslab, interval 1, probability 0, space 0, times 0 [ 102.951064][ T519] CPU: 1 PID: 519 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 102.961372][ T519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 102.971605][ T519] Call Trace: [ 102.974879][ T519] dump_stack+0x84/0xad [ 102.979275][ T519] should_fail.cold+0x5/0x1f [ 102.983839][ T519] ? pids_css_alloc+0x3c/0x130 [ 102.988690][ T519] __should_failslab+0xd8/0x120 [ 102.993517][ T519] should_failslab+0x9/0x20 [ 102.998019][ T519] kmem_cache_alloc_trace+0x3d/0x330 [ 103.003575][ T519] pids_css_alloc+0x3c/0x130 [ 103.008138][ T519] cgroup_apply_control_enable+0x432/0xf10 [ 103.014087][ T519] cgroup_subtree_control_write+0x6d3/0xd60 [ 103.020135][ T519] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 103.026399][ T519] ? kfree+0xc2/0x560 [ 103.030357][ T519] ? __kasan_slab_free+0x129/0x170 [ 103.035462][ T519] cgroup_file_write+0x272/0x7c0 [ 103.040367][ T519] ? __kasan_check_write+0x14/0x20 [ 103.045551][ T519] ? cgroup_file_poll+0xd0/0xd0 [ 103.050489][ T519] ? __mutex_lock_slowpath+0x10/0x10 [ 103.055743][ T519] ? cgroup_file_poll+0xd0/0xd0 [ 103.060577][ T519] kernfs_fop_write_iter+0x2d5/0x450 [ 103.065920][ T519] new_sync_write+0x358/0x6e0 [ 103.070912][ T519] ? new_sync_read+0x6e0/0x6e0 [ 103.075654][ T519] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 103.082504][ T519] ? rw_verify_area+0xc3/0x2b0 [ 103.088602][ T519] vfs_write+0x4f5/0x750 [ 103.093111][ T519] ksys_write+0x111/0x210 [ 103.097427][ T519] ? __ia32_sys_read+0xa0/0xa0 [ 103.102165][ T519] ? debug_smp_processor_id+0x17/0x20 [ 103.107522][ T519] ? fpregs_assert_state_consistent+0x49/0xb0 [ 103.113572][ T519] __x64_sys_write+0x6e/0xb0 [ 103.118136][ T519] ? syscall_exit_to_user_mode+0x27/0x160 [ 103.123825][ T519] do_syscall_64+0x32/0x80 [ 103.128222][ T519] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 103.134266][ T519] RIP: 0033:0x7fabe7ed7ce9 [ 103.138836][ T519] 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 [ 103.158512][ T519] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 103.166982][ T519] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 103.175203][ T519] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 103.183150][ T519] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 103.191278][ T519] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 103.199251][ T519] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000d [ 103.248201][ T527] FAULT_INJECTION: forcing a failure. [ 103.248201][ T527] name failslab, interval 1, probability 0, space 0, times 0 [ 103.260898][ T527] CPU: 0 PID: 527 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 103.271023][ T527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.281195][ T527] Call Trace: [ 103.284477][ T527] dump_stack+0x84/0xad [ 103.288627][ T527] should_fail.cold+0x5/0x1f [ 103.293266][ T527] __should_failslab+0xd8/0x120 [ 103.298121][ T527] should_failslab+0x9/0x20 [ 103.302629][ T527] __kmalloc_track_caller+0x5c/0x360 [ 103.307890][ T527] ? __kernfs_new_node+0xaa/0x680 [ 103.312915][ T527] kstrdup_const+0x45/0x70 [ 103.317431][ T527] __kernfs_new_node+0xaa/0x680 [ 103.322679][ T527] ? kernfs_dop_revalidate+0x370/0x370 [ 103.328233][ T527] ? kasan_save_stack+0x42/0x50 [ 103.333408][ T527] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 103.339792][ T527] ? kasan_kmalloc+0x9/0x10 [ 103.344269][ T527] ? snprintf+0x9e/0xd0 [ 103.348517][ T527] ? vsprintf+0x20/0x20 [ 103.352774][ T527] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 103.358901][ T527] ? do_syscall_64+0x32/0x80 [ 103.363465][ T527] kernfs_new_node+0x79/0x110 [ 103.368284][ T527] ? __kasan_check_write+0x14/0x20 [ 103.373426][ T527] __kernfs_create_file+0x24/0x270 [ 103.379056][ T527] cgroup_addrm_files+0x2e2/0x830 [ 103.384057][ T527] ? cgroup_show_path+0x3d0/0x3d0 [ 103.389065][ T527] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 103.394426][ T527] ? __radix_tree_replace+0xd0/0x250 [ 103.399684][ T527] ? idr_replace+0x138/0x150 [ 103.404259][ T527] ? idr_get_next+0x130/0x130 [ 103.408918][ T527] css_populate_dir+0x17a/0x400 [ 103.413759][ T527] cgroup_apply_control_enable+0x39c/0xf10 [ 103.419547][ T527] cgroup_subtree_control_write+0x6d3/0xd60 [ 103.425456][ T527] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 103.431516][ T527] ? kfree+0xc2/0x560 [ 103.435476][ T527] ? __kasan_slab_free+0x129/0x170 [ 103.440577][ T527] cgroup_file_write+0x272/0x7c0 [ 103.445785][ T527] ? __kasan_check_write+0x14/0x20 [ 103.450902][ T527] ? cgroup_file_poll+0xd0/0xd0 [ 103.455741][ T527] ? __mutex_lock_slowpath+0x10/0x10 [ 103.461129][ T527] ? cgroup_file_poll+0xd0/0xd0 [ 103.466041][ T527] kernfs_fop_write_iter+0x2d5/0x450 [ 103.471302][ T527] new_sync_write+0x358/0x6e0 [ 103.475964][ T527] ? new_sync_read+0x6e0/0x6e0 [ 103.480887][ T527] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 103.488210][ T527] ? rw_verify_area+0xc3/0x2b0 [ 103.492966][ T527] vfs_write+0x4f5/0x750 [ 103.497396][ T527] ksys_write+0x111/0x210 [ 103.501707][ T527] ? __ia32_sys_read+0xa0/0xa0 [ 103.506441][ T527] ? debug_smp_processor_id+0x17/0x20 [ 103.511781][ T527] ? fpregs_assert_state_consistent+0x49/0xb0 [ 103.517814][ T527] __x64_sys_write+0x6e/0xb0 [ 103.522898][ T527] ? syscall_exit_to_user_mode+0x27/0x160 [ 103.529141][ T527] do_syscall_64+0x32/0x80 [ 103.533529][ T527] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 103.539843][ T527] RIP: 0033:0x7fabe7ed7ce9 [ 103.544242][ T527] 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 [ 103.564027][ T527] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 103.572642][ T527] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 103.580718][ T527] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 103.588750][ T527] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 103.596695][ T527] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 103.604769][ T527] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000b [ 103.612808][ T527] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 103.658225][ T528] FAULT_INJECTION: forcing a failure. [ 103.658225][ T528] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 103.671546][ T528] CPU: 0 PID: 528 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 103.681423][ T528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.691454][ T528] Call Trace: [ 103.694716][ T528] dump_stack+0x84/0xad [ 103.698855][ T528] should_fail.cold+0x5/0x1f [ 103.703533][ T528] ? kernfs_dop_revalidate+0x370/0x370 [ 103.709231][ T528] should_fail_alloc_page+0x74/0x90 [ 103.714397][ T528] __alloc_pages_nodemask+0x132/0x5d0 [ 103.719765][ T528] ? mutex_lock+0x79/0xd0 [ 103.724069][ T528] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 103.730887][ T528] ? delegate_show+0x200/0x200 [ 103.735627][ T528] ? _raw_spin_lock_irq+0x87/0x120 [ 103.740882][ T528] ? _raw_spin_lock+0x120/0x120 [ 103.745707][ T528] allocate_slab+0x367/0x4c0 [ 103.750278][ T528] ___slab_alloc.constprop.0+0x240/0x760 [ 103.755972][ T528] ? pids_css_alloc+0x3c/0x130 [ 103.760712][ T528] ? cgroup_show_path+0x3d0/0x3d0 [ 103.765790][ T528] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 103.771147][ T528] ? __radix_tree_replace+0xd0/0x250 [ 103.776402][ T528] ? pids_css_alloc+0x3c/0x130 [ 103.781134][ T528] ? pids_css_alloc+0x3c/0x130 [ 103.785979][ T528] kmem_cache_alloc_trace+0x2c6/0x330 [ 103.791479][ T528] pids_css_alloc+0x3c/0x130 [ 103.796052][ T528] cgroup_apply_control_enable+0x432/0xf10 [ 103.801846][ T528] cgroup_subtree_control_write+0x6d3/0xd60 [ 103.807709][ T528] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 103.813755][ T528] ? kfree+0xc2/0x560 [ 103.817721][ T528] ? __kasan_slab_free+0x129/0x170 [ 103.822815][ T528] cgroup_file_write+0x272/0x7c0 [ 103.827720][ T528] ? __kasan_check_write+0x14/0x20 [ 103.834636][ T528] ? cgroup_file_poll+0xd0/0xd0 [ 103.839460][ T528] ? __mutex_lock_slowpath+0x10/0x10 [ 103.844724][ T528] ? cgroup_file_poll+0xd0/0xd0 [ 103.849549][ T528] kernfs_fop_write_iter+0x2d5/0x450 [ 103.854804][ T528] new_sync_write+0x358/0x6e0 [ 103.859449][ T528] ? new_sync_read+0x6e0/0x6e0 [ 103.864184][ T528] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 103.870914][ T528] ? rw_verify_area+0xc3/0x2b0 [ 103.875732][ T528] vfs_write+0x4f5/0x750 [ 103.879946][ T528] ksys_write+0x111/0x210 [ 103.884244][ T528] ? __ia32_sys_read+0xa0/0xa0 [ 103.888977][ T528] ? debug_smp_processor_id+0x17/0x20 [ 103.894326][ T528] ? fpregs_assert_state_consistent+0x49/0xb0 [ 103.900517][ T528] __x64_sys_write+0x6e/0xb0 [ 103.905239][ T528] ? syscall_exit_to_user_mode+0x27/0x160 [ 103.910945][ T528] do_syscall_64+0x32/0x80 [ 103.915466][ T528] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 103.921366][ T528] RIP: 0033:0x7fabe7ed7ce9 [ 103.925753][ T528] 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 [ 103.945463][ T528] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 103.953847][ T528] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 103.961817][ T528] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 103.969996][ T528] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 103.978378][ T528] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 103.986505][ T528] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000e [ 104.018302][ T522] FAULT_INJECTION: forcing a failure. [ 104.018302][ T522] name failslab, interval 1, probability 0, space 0, times 0 [ 104.031009][ T522] CPU: 0 PID: 522 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 104.041024][ T522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.051056][ T522] Call Trace: [ 104.054497][ T522] dump_stack+0x84/0xad [ 104.058884][ T522] should_fail.cold+0x5/0x1f [ 104.063451][ T522] ? pids_css_alloc+0x3c/0x130 [ 104.068407][ T522] __should_failslab+0xd8/0x120 [ 104.073238][ T522] should_failslab+0x9/0x20 [ 104.077719][ T522] kmem_cache_alloc_trace+0x3d/0x330 [ 104.082981][ T522] pids_css_alloc+0x3c/0x130 [ 104.087537][ T522] cgroup_apply_control_enable+0x432/0xf10 [ 104.093321][ T522] cgroup_subtree_control_write+0x6d3/0xd60 [ 104.099202][ T522] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 104.105252][ T522] ? kfree+0xc2/0x560 [ 104.109301][ T522] ? __kasan_slab_free+0x129/0x170 [ 104.114402][ T522] cgroup_file_write+0x272/0x7c0 [ 104.119320][ T522] ? __kasan_check_write+0x14/0x20 [ 104.124421][ T522] ? cgroup_file_poll+0xd0/0xd0 [ 104.129253][ T522] ? __mutex_lock_slowpath+0x10/0x10 [ 104.134529][ T522] ? cgroup_file_poll+0xd0/0xd0 [ 104.139391][ T522] kernfs_fop_write_iter+0x2d5/0x450 [ 104.144787][ T522] new_sync_write+0x358/0x6e0 [ 104.149462][ T522] ? new_sync_read+0x6e0/0x6e0 [ 104.154202][ T522] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 104.160940][ T522] ? rw_verify_area+0xc3/0x2b0 [ 104.165691][ T522] vfs_write+0x4f5/0x750 [ 104.169905][ T522] ksys_write+0x111/0x210 [ 104.174222][ T522] ? __ia32_sys_read+0xa0/0xa0 [ 104.179048][ T522] ? debug_smp_processor_id+0x17/0x20 [ 104.184398][ T522] ? fpregs_assert_state_consistent+0x49/0xb0 [ 104.190582][ T522] __x64_sys_write+0x6e/0xb0 [ 104.195150][ T522] ? syscall_exit_to_user_mode+0x27/0x160 [ 104.200845][ T522] do_syscall_64+0x32/0x80 [ 104.205253][ T522] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 104.211158][ T522] RIP: 0033:0x7fabe7ed7ce9 [ 104.215576][ T522] 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 [ 104.235181][ T522] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 104.243745][ T522] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 104.251878][ T522] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 104.259833][ T522] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 104.267785][ T522] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 104.275823][ T522] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000016 [ 104.318112][ T525] FAULT_INJECTION: forcing a failure. [ 104.318112][ T525] name failslab, interval 1, probability 0, space 0, times 0 [ 104.330889][ T525] CPU: 0 PID: 525 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 104.340763][ T525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.350888][ T525] Call Trace: [ 104.354274][ T525] dump_stack+0x84/0xad [ 104.358396][ T525] should_fail.cold+0x5/0x1f [ 104.362949][ T525] ? find_next_bit+0x14/0x20 [ 104.367510][ T525] ? cgroup_exit_cftypes+0x150/0x150 [ 104.372779][ T525] ? percpu_ref_init+0xd1/0x380 [ 104.377621][ T525] __should_failslab+0xd8/0x120 [ 104.382449][ T525] should_failslab+0x9/0x20 [ 104.386953][ T525] kmem_cache_alloc_trace+0x3d/0x330 [ 104.392218][ T525] ? cgroup_exit_cftypes+0x150/0x150 [ 104.397494][ T525] percpu_ref_init+0xd1/0x380 [ 104.402148][ T525] cgroup_apply_control_enable+0x486/0xf10 [ 104.407930][ T525] cgroup_subtree_control_write+0x6d3/0xd60 [ 104.413795][ T525] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 104.419830][ T525] ? kfree+0xc2/0x560 [ 104.423785][ T525] ? __kasan_slab_free+0x129/0x170 [ 104.428864][ T525] cgroup_file_write+0x272/0x7c0 [ 104.433781][ T525] ? __kasan_check_write+0x14/0x20 [ 104.438876][ T525] ? cgroup_file_poll+0xd0/0xd0 [ 104.443702][ T525] ? __mutex_lock_slowpath+0x10/0x10 [ 104.448963][ T525] ? cgroup_file_poll+0xd0/0xd0 [ 104.453784][ T525] kernfs_fop_write_iter+0x2d5/0x450 [ 104.459054][ T525] new_sync_write+0x358/0x6e0 [ 104.463707][ T525] ? new_sync_read+0x6e0/0x6e0 [ 104.468442][ T525] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 104.475181][ T525] ? rw_verify_area+0xc3/0x2b0 [ 104.479930][ T525] vfs_write+0x4f5/0x750 [ 104.484157][ T525] ksys_write+0x111/0x210 [ 104.488463][ T525] ? __ia32_sys_read+0xa0/0xa0 [ 104.493201][ T525] ? debug_smp_processor_id+0x17/0x20 [ 104.498541][ T525] ? fpregs_assert_state_consistent+0x49/0xb0 [ 104.504586][ T525] __x64_sys_write+0x6e/0xb0 [ 104.509166][ T525] ? syscall_exit_to_user_mode+0x27/0x160 [ 104.514850][ T525] do_syscall_64+0x32/0x80 [ 104.519490][ T525] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 104.525368][ T525] RIP: 0033:0x7fabe7ed7ce9 [ 104.529847][ T525] 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 [ 104.549517][ T525] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 104.557998][ T525] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 104.566386][ T525] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 104.574348][ T525] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 104.582402][ T525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 104.590690][ T525] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000007 [ 104.628301][ T532] FAULT_INJECTION: forcing a failure. [ 104.628301][ T532] name failslab, interval 1, probability 0, space 0, times 0 [ 104.641093][ T532] CPU: 1 PID: 532 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 104.651666][ T532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.661701][ T532] Call Trace: [ 104.664998][ T532] dump_stack+0x84/0xad [ 104.669221][ T532] should_fail.cold+0x5/0x1f [ 104.673885][ T532] ? find_next_bit+0x14/0x20 [ 104.678464][ T532] ? cgroup_exit_cftypes+0x150/0x150 [ 104.683726][ T532] ? percpu_ref_init+0xd1/0x380 [ 104.688550][ T532] __should_failslab+0xd8/0x120 [ 104.693378][ T532] should_failslab+0x9/0x20 [ 104.697851][ T532] kmem_cache_alloc_trace+0x3d/0x330 [ 104.703111][ T532] ? cgroup_exit_cftypes+0x150/0x150 [ 104.708368][ T532] percpu_ref_init+0xd1/0x380 [ 104.713014][ T532] cgroup_apply_control_enable+0x486/0xf10 [ 104.718789][ T532] cgroup_subtree_control_write+0x6d3/0xd60 [ 104.724647][ T532] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 104.730679][ T532] ? kfree+0xc2/0x560 [ 104.734630][ T532] ? __kasan_slab_free+0x129/0x170 [ 104.739714][ T532] cgroup_file_write+0x272/0x7c0 [ 104.744615][ T532] ? __kasan_check_write+0x14/0x20 [ 104.749691][ T532] ? cgroup_file_poll+0xd0/0xd0 [ 104.754508][ T532] ? __mutex_lock_slowpath+0x10/0x10 [ 104.759762][ T532] ? cgroup_file_poll+0xd0/0xd0 [ 104.764581][ T532] kernfs_fop_write_iter+0x2d5/0x450 [ 104.769835][ T532] new_sync_write+0x358/0x6e0 [ 104.774478][ T532] ? new_sync_read+0x6e0/0x6e0 [ 104.779234][ T532] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 104.785973][ T532] ? rw_verify_area+0xc3/0x2b0 [ 104.790700][ T532] vfs_write+0x4f5/0x750 [ 104.794926][ T532] ksys_write+0x111/0x210 [ 104.799224][ T532] ? __ia32_sys_read+0xa0/0xa0 [ 104.803961][ T532] ? debug_smp_processor_id+0x17/0x20 [ 104.809307][ T532] ? fpregs_assert_state_consistent+0x49/0xb0 [ 104.815339][ T532] __x64_sys_write+0x6e/0xb0 [ 104.819988][ T532] ? syscall_exit_to_user_mode+0x27/0x160 [ 104.825847][ T532] do_syscall_64+0x32/0x80 [ 104.830232][ T532] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 104.836134][ T532] RIP: 0033:0x7fabe7ed7ce9 [ 104.840551][ T532] 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 [ 104.860126][ T532] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 104.868519][ T532] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 104.876461][ T532] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 104.884412][ T532] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 104.892353][ T532] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 104.900381][ T532] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000017 [ 104.910881][ T423] ------------[ cut here ]------------ [ 104.916356][ T423] WARNING: CPU: 0 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 104.925296][ T423] Modules linked in: [ 104.929180][ T423] CPU: 0 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 104.939071][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.949135][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 104.954733][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 104.975673][ T423] RSP: 0018:ffffc900007a7c28 EFLAGS: 00010282 [ 104.981961][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4f8c RCX: 0000000000000002 [ 104.990121][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 104.998135][ T423] RBP: ffffc900007a7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 105.006174][ T423] R10: fffff520000f4f78 R11: 0000000000000000 R12: ffffc900007a7c80 [ 105.014176][ T423] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d686780 [ 105.022316][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 105.031250][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.037836][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506b0 [ 105.045792][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.053762][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.061742][ T423] Call Trace: [ 105.065009][ T423] ? clone_private_mount+0x300/0x300 [ 105.070287][ T423] ? change_mnt_propagation+0x5df/0xd40 [ 105.075827][ T423] namespace_unlock+0x331/0x3e0 [ 105.080865][ T423] ? kern_unmount+0xb0/0xb0 [ 105.085351][ T423] ? unhash_mnt+0x3b0/0x3b0 [ 105.089861][ T423] path_umount+0x665/0x1170 [ 105.094358][ T423] ? __detach_mounts+0x210/0x210 [ 105.099400][ T423] ? user_path_at_empty+0xa2/0xf0 [ 105.104520][ T423] __x64_sys_umount+0xfb/0x120 [ 105.109292][ T423] ? path_umount+0x1170/0x1170 [ 105.114079][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 105.120149][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 105.126044][ T423] do_syscall_64+0x32/0x80 [ 105.130461][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 105.136560][ T423] RIP: 0033:0x7fabe7ed9097 [ 105.140994][ T423] 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 [ 105.160998][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 105.169508][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 105.177465][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 105.186121][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 105.196017][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 105.204547][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000018 [ 105.212521][ T423] ---[ end trace a21a7dc9bb3febfa ]--- [ 105.219465][ T423] ------------[ cut here ]------------ [ 105.225193][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 105.234256][ T423] Modules linked in: [ 105.238194][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 105.248104][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.258270][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 105.264069][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 105.284236][ T423] RSP: 0018:ffffc900007a7cf0 EFLAGS: 00010282 [ 105.290413][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4fa5 RCX: 0000000000000002 [ 105.298406][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 105.306661][ T423] RBP: ffffc900007a7db0 R08: 0000000000000000 R09: 0000000000000008 [ 105.314835][ T423] R10: fffff520000f4f91 R11: 0000000000000000 R12: ffffc900007a7d48 [ 105.322892][ T423] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810d686780 [ 105.330970][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 105.339999][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.346578][ T423] CR2: 00007fabe7f4e350 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 105.356689][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.364891][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.373205][ T423] Call Trace: [ 105.376484][ T423] ? namespace_unlock+0x331/0x3e0 [ 105.381525][ T423] ? clone_private_mount+0x300/0x300 [ 105.386880][ T423] ? dput+0xac/0x8a0 [ 105.392442][ T423] path_umount+0x6a3/0x1170 [ 105.396947][ T423] ? __detach_mounts+0x210/0x210 [ 105.401909][ T423] ? user_path_at_empty+0xa2/0xf0 [ 105.407036][ T423] __x64_sys_umount+0xfb/0x120 [ 105.411811][ T423] ? path_umount+0x1170/0x1170 [ 105.416754][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 105.422832][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 105.428474][ T423] do_syscall_64+0x32/0x80 [ 105.433163][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 105.439321][ T423] RIP: 0033:0x7fabe7ed9097 [ 105.443983][ T423] 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 [ 105.463983][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 105.472516][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 105.480841][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 105.488967][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 105.496917][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 105.505056][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000018 [ 105.513075][ T423] ---[ end trace a21a7dc9bb3febfb ]--- [ 105.518994][ T526] FAULT_INJECTION: forcing a failure. [ 105.518994][ T526] name failslab, interval 1, probability 0, space 0, times 0 [ 105.532161][ T526] CPU: 0 PID: 526 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 105.544224][ T526] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.554354][ T526] Call Trace: [ 105.557630][ T526] dump_stack+0x84/0xad [ 105.561770][ T526] should_fail.cold+0x5/0x1f [ 105.566345][ T526] ? pids_css_alloc+0x3c/0x130 [ 105.571083][ T526] __should_failslab+0xd8/0x120 [ 105.576133][ T526] should_failslab+0x9/0x20 [ 105.580803][ T526] kmem_cache_alloc_trace+0x3d/0x330 [ 105.588577][ T526] pids_css_alloc+0x3c/0x130 [ 105.593138][ T526] cgroup_apply_control_enable+0x432/0xf10 [ 105.598917][ T526] cgroup_subtree_control_write+0x6d3/0xd60 [ 105.605385][ T526] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 105.611452][ T526] ? kfree+0xc2/0x560 [ 105.615411][ T526] ? __kasan_slab_free+0x129/0x170 [ 105.620513][ T526] cgroup_file_write+0x272/0x7c0 [ 105.625543][ T526] ? __kasan_check_write+0x14/0x20 [ 105.630641][ T526] ? cgroup_file_poll+0xd0/0xd0 [ 105.635599][ T526] ? __mutex_lock_slowpath+0x10/0x10 [ 105.640966][ T526] ? cgroup_file_poll+0xd0/0xd0 [ 105.645792][ T526] kernfs_fop_write_iter+0x2d5/0x450 [ 105.651049][ T526] new_sync_write+0x358/0x6e0 [ 105.655697][ T526] ? new_sync_read+0x6e0/0x6e0 [ 105.660433][ T526] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 105.667293][ T526] ? rw_verify_area+0xc3/0x2b0 [ 105.672079][ T526] vfs_write+0x4f5/0x750 [ 105.676326][ T526] ksys_write+0x111/0x210 [ 105.681204][ T526] ? __ia32_sys_read+0xa0/0xa0 [ 105.686087][ T526] ? debug_smp_processor_id+0x17/0x20 [ 105.692826][ T526] ? fpregs_assert_state_consistent+0x49/0xb0 [ 105.698885][ T526] __x64_sys_write+0x6e/0xb0 [ 105.703566][ T526] ? syscall_exit_to_user_mode+0x27/0x160 [ 105.709303][ T526] do_syscall_64+0x32/0x80 [ 105.714250][ T526] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 105.722026][ T526] RIP: 0033:0x7fabe7ed7ce9 [ 105.726454][ T526] 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 [ 105.746644][ T526] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 105.755216][ T526] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 105.763168][ T526] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 105.771472][ T526] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 105.779430][ T526] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 105.787465][ T526] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000b [ 105.797332][ T421] ------------[ cut here ]------------ [ 105.803007][ T421] WARNING: CPU: 1 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 105.812191][ T421] Modules linked in: [ 105.816089][ T421] CPU: 1 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 105.825979][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.836476][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 105.842186][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 105.861789][ T421] RSP: 0018:ffffc90000757c28 EFLAGS: 00010282 [ 105.867851][ T421] RAX: 0000000000000000 RBX: 1ffff920000eaf8c RCX: 0000000000000002 [ 105.875818][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 105.883934][ T421] RBP: ffffc90000757ce8 R08: 0000000000000000 R09: 0000000000000008 [ 105.891919][ T421] R10: fffff520000eaf78 R11: 0000000000000000 R12: ffffc90000757c80 [ 105.899920][ T421] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d687680 [ 105.907903][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 105.916814][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.923406][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506a0 [ 105.931493][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.939791][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.947774][ T421] Call Trace: [ 105.951047][ T421] ? clone_private_mount+0x300/0x300 [ 105.956422][ T421] ? change_mnt_propagation+0x5df/0xd40 [ 105.962103][ T421] namespace_unlock+0x331/0x3e0 [ 105.967149][ T421] ? kern_unmount+0xb0/0xb0 [ 105.973391][ T421] ? unhash_mnt+0x3b0/0x3b0 [ 105.977987][ T421] path_umount+0x665/0x1170 [ 105.982464][ T421] ? __detach_mounts+0x210/0x210 [ 105.987376][ T421] ? user_path_at_empty+0xa2/0xf0 [ 105.992424][ T421] __x64_sys_umount+0xfb/0x120 [ 105.997175][ T421] ? path_umount+0x1170/0x1170 [ 106.001947][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 106.008101][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 106.013711][ T421] do_syscall_64+0x32/0x80 [ 106.018128][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 106.024091][ T421] RIP: 0033:0x7fabe7ed9097 [ 106.028506][ T421] 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 [ 106.048170][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 106.056739][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 106.064723][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 106.072696][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 106.080658][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 106.088621][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000c [ 106.096572][ T421] ---[ end trace a21a7dc9bb3febfc ]--- [ 106.102217][ T421] ------------[ cut here ]------------ [ 106.108073][ T421] WARNING: CPU: 0 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 106.116988][ T421] Modules linked in: [ 106.120929][ T421] CPU: 0 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 106.128003][ T531] FAULT_INJECTION: forcing a failure. [ 106.128003][ T531] name failslab, interval 1, probability 0, space 0, times 0 [ 106.130809][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 106.149929][ T531] CPU: 1 PID: 531 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 106.153419][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 106.163467][ T531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 106.163472][ T531] Call Trace: [ 106.163493][ T531] dump_stack+0x84/0xad [ 106.163497][ T531] should_fail.cold+0x5/0x1f [ 106.163504][ T531] ? find_next_bit+0x14/0x20 [ 106.163513][ T531] ? cgroup_exit_cftypes+0x150/0x150 [ 106.163524][ T531] ? percpu_ref_init+0xd1/0x380 [ 106.169146][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 106.179154][ T531] __should_failslab+0xd8/0x120 [ 106.179162][ T531] should_failslab+0x9/0x20 [ 106.179167][ T531] kmem_cache_alloc_trace+0x3d/0x330 [ 106.179173][ T531] ? cgroup_exit_cftypes+0x150/0x150 [ 106.179177][ T531] percpu_ref_init+0xd1/0x380 [ 106.179183][ T531] cgroup_apply_control_enable+0x486/0xf10 [ 106.179190][ T531] cgroup_subtree_control_write+0x6d3/0xd60 [ 106.182443][ T421] RSP: 0018:ffffc90000757cf0 EFLAGS: 00010282 [ 106.186564][ T531] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 106.191127][ T421] [ 106.195671][ T531] ? kfree+0xc2/0x560 [ 106.200925][ T421] RAX: 0000000000000000 RBX: 1ffff920000eafa5 RCX: 0000000000000002 [ 106.205747][ T531] ? __kasan_slab_free+0x129/0x170 [ 106.225387][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 106.230169][ T531] cgroup_file_write+0x272/0x7c0 [ 106.230178][ T531] ? __kasan_check_write+0x14/0x20 [ 106.234643][ T421] RBP: ffffc90000757db0 R08: 0000000000000000 R09: 0000000000000008 [ 106.239891][ T531] ? cgroup_file_poll+0xd0/0xd0 [ 106.239899][ T531] ? __mutex_lock_slowpath+0x10/0x10 [ 106.239904][ T531] ? cgroup_file_poll+0xd0/0xd0 [ 106.239909][ T531] kernfs_fop_write_iter+0x2d5/0x450 [ 106.239917][ T531] new_sync_write+0x358/0x6e0 [ 106.239921][ T531] ? new_sync_read+0x6e0/0x6e0 [ 106.239930][ T531] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 106.245178][ T421] R10: fffff520000eaf91 R11: 0000000000000000 R12: ffffc90000757d48 [ 106.249815][ T531] ? rw_verify_area+0xc3/0x2b0 [ 106.249820][ T531] vfs_write+0x4f5/0x750 [ 106.249824][ T531] ksys_write+0x111/0x210 [ 106.249828][ T531] ? __ia32_sys_read+0xa0/0xa0 [ 106.249840][ T531] ? debug_smp_processor_id+0x17/0x20 [ 106.255602][ T421] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810d687680 [ 106.261471][ T531] ? fpregs_assert_state_consistent+0x49/0xb0 [ 106.261475][ T531] __x64_sys_write+0x6e/0xb0 [ 106.261481][ T531] ? syscall_exit_to_user_mode+0x27/0x160 [ 106.261487][ T531] do_syscall_64+0x32/0x80 [ 106.267517][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 106.273552][ T531] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 106.273558][ T531] RIP: 0033:0x7fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 106.273569][ T531] 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 [ 106.275864][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 106.279804][ T531] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 106.279810][ T531] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 106.279813][ T531] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 106.279815][ T531] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 106.279818][ T531] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 106.279820][ T531] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000f [ 106.510109][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506b0 [ 106.518080][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 106.526035][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 106.534015][ T421] Call Trace: [ 106.537287][ T421] ? namespace_unlock+0x331/0x3e0 [ 106.542312][ T421] ? clone_private_mount+0x300/0x300 [ 106.547600][ T421] ? dput+0xac/0x8a0 [ 106.551506][ T421] path_umount+0x6a3/0x1170 [ 106.555996][ T421] ? __detach_mounts+0x210/0x210 [ 106.560935][ T421] ? user_path_at_empty+0xa2/0xf0 [ 106.565946][ T421] __x64_sys_umount+0xfb/0x120 [ 106.570710][ T421] ? path_umount+0x1170/0x1170 [ 106.575458][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 106.581533][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 106.587160][ T421] do_syscall_64+0x32/0x80 [ 106.591577][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 106.597452][ T421] RIP: 0033:0x7fabe7ed9097 [ 106.601869][ T421] 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 [ 106.622429][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 106.630950][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 106.638924][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 106.646868][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 106.654835][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 106.662811][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000c [ 106.672617][ T421] ---[ end trace a21a7dc9bb3febfd ]--- [ 106.718430][ T533] FAULT_INJECTION: forcing a failure. [ 106.718430][ T533] name failslab, interval 1, probability 0, space 0, times 0 [ 106.731059][ T533] CPU: 1 PID: 533 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 106.740937][ T533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 106.750998][ T533] Call Trace: [ 106.754308][ T533] dump_stack+0x84/0xad [ 106.760281][ T533] should_fail.cold+0x5/0x1f [ 106.764868][ T533] ? pids_css_alloc+0x3c/0x130 [ 106.769630][ T533] __should_failslab+0xd8/0x120 [ 106.774476][ T533] should_failslab+0x9/0x20 [ 106.779006][ T533] kmem_cache_alloc_trace+0x3d/0x330 [ 106.784281][ T533] pids_css_alloc+0x3c/0x130 [ 106.789031][ T533] cgroup_apply_control_enable+0x432/0xf10 [ 106.794819][ T533] cgroup_subtree_control_write+0x6d3/0xd60 [ 106.800689][ T533] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 106.806745][ T533] ? kfree+0xc2/0x560 [ 106.810696][ T533] ? __kasan_slab_free+0x129/0x170 [ 106.815795][ T533] cgroup_file_write+0x272/0x7c0 [ 106.820703][ T533] ? __kasan_check_write+0x14/0x20 [ 106.825798][ T533] ? cgroup_file_poll+0xd0/0xd0 [ 106.830621][ T533] ? __mutex_lock_slowpath+0x10/0x10 [ 106.835897][ T533] ? cgroup_file_poll+0xd0/0xd0 [ 106.840749][ T533] kernfs_fop_write_iter+0x2d5/0x450 [ 106.846013][ T533] new_sync_write+0x358/0x6e0 [ 106.850669][ T533] ? new_sync_read+0x6e0/0x6e0 [ 106.855426][ T533] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 106.862283][ T533] ? rw_verify_area+0xc3/0x2b0 [ 106.867061][ T533] vfs_write+0x4f5/0x750 [ 106.872888][ T533] ksys_write+0x111/0x210 [ 106.877760][ T533] ? __ia32_sys_read+0xa0/0xa0 [ 106.883162][ T533] ? debug_smp_processor_id+0x17/0x20 [ 106.888695][ T533] ? fpregs_assert_state_consistent+0x49/0xb0 [ 106.895107][ T533] __x64_sys_write+0x6e/0xb0 [ 106.899768][ T533] ? syscall_exit_to_user_mode+0x27/0x160 [ 106.905730][ T533] do_syscall_64+0x32/0x80 [ 106.910126][ T533] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 106.916091][ T533] RIP: 0033:0x7fabe7ed7ce9 [ 106.920605][ T533] 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 [ 106.940389][ T533] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 106.948865][ T533] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 106.956929][ T533] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 106.965055][ T533] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 106.973018][ T533] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 106.981328][ T533] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000008 [ 107.038184][ T529] FAULT_INJECTION: forcing a failure. [ 107.038184][ T529] name failslab, interval 1, probability 0, space 0, times 0 [ 107.050965][ T529] CPU: 1 PID: 529 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 107.060856][ T529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.071100][ T529] Call Trace: [ 107.074384][ T529] dump_stack+0x84/0xad [ 107.078524][ T529] should_fail.cold+0x5/0x1f [ 107.083347][ T529] ? find_next_bit+0x14/0x20 [ 107.087995][ T529] ? cgroup_exit_cftypes+0x150/0x150 [ 107.093250][ T529] ? percpu_ref_init+0xd1/0x380 [ 107.098088][ T529] __should_failslab+0xd8/0x120 [ 107.102925][ T529] should_failslab+0x9/0x20 [ 107.107420][ T529] kmem_cache_alloc_trace+0x3d/0x330 [ 107.112677][ T529] ? cgroup_exit_cftypes+0x150/0x150 [ 107.117970][ T529] percpu_ref_init+0xd1/0x380 [ 107.122724][ T529] cgroup_apply_control_enable+0x486/0xf10 [ 107.128499][ T529] cgroup_subtree_control_write+0x6d3/0xd60 [ 107.134367][ T529] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 107.140428][ T529] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 107.146321][ T529] cgroup_file_write+0x272/0x7c0 [ 107.151350][ T529] ? __kasan_check_write+0x14/0x20 [ 107.156472][ T529] ? cgroup_file_poll+0xd0/0xd0 [ 107.161311][ T529] ? __mutex_lock_slowpath+0x10/0x10 [ 107.166686][ T529] ? cgroup_file_poll+0xd0/0xd0 [ 107.171532][ T529] kernfs_fop_write_iter+0x2d5/0x450 [ 107.176801][ T529] new_sync_write+0x358/0x6e0 [ 107.181474][ T529] ? new_sync_read+0x6e0/0x6e0 [ 107.186300][ T529] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 107.193041][ T529] ? rw_verify_area+0xc3/0x2b0 [ 107.197783][ T529] vfs_write+0x4f5/0x750 [ 107.201996][ T529] ksys_write+0x111/0x210 [ 107.206318][ T529] ? __ia32_sys_read+0xa0/0xa0 [ 107.211069][ T529] ? debug_smp_processor_id+0x17/0x20 [ 107.216443][ T529] ? fpregs_assert_state_consistent+0x49/0xb0 [ 107.222490][ T529] __x64_sys_write+0x6e/0xb0 [ 107.227180][ T529] ? syscall_exit_to_user_mode+0x27/0x160 [ 107.232925][ T529] do_syscall_64+0x32/0x80 [ 107.237330][ T529] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 107.243199][ T529] RIP: 0033:0x7fabe7ed7ce9 [ 107.247597][ T529] 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 [ 107.267501][ T529] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 107.275918][ T529] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 107.283880][ T529] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 107.291825][ T529] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 107.299813][ T529] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 107.307759][ T529] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000c [ 107.338301][ T534] FAULT_INJECTION: forcing a failure. [ 107.338301][ T534] name failslab, interval 1, probability 0, space 0, times 0 [ 107.351729][ T534] CPU: 0 PID: 534 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 107.361596][ T534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.371625][ T534] Call Trace: [ 107.374893][ T534] dump_stack+0x84/0xad [ 107.379093][ T534] should_fail.cold+0x5/0x1f [ 107.383656][ T534] ? pids_css_alloc+0x3c/0x130 [ 107.388420][ T534] __should_failslab+0xd8/0x120 [ 107.393249][ T534] should_failslab+0x9/0x20 [ 107.397898][ T534] kmem_cache_alloc_trace+0x3d/0x330 [ 107.403179][ T534] pids_css_alloc+0x3c/0x130 [ 107.407738][ T534] cgroup_apply_control_enable+0x432/0xf10 [ 107.413637][ T534] cgroup_subtree_control_write+0x6d3/0xd60 [ 107.419540][ T534] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 107.425642][ T534] ? kfree+0xc2/0x560 [ 107.429623][ T534] ? __kasan_slab_free+0x129/0x170 [ 107.434815][ T534] cgroup_file_write+0x272/0x7c0 [ 107.439983][ T534] ? __kasan_check_write+0x14/0x20 [ 107.445400][ T534] ? cgroup_file_poll+0xd0/0xd0 [ 107.450333][ T534] ? __mutex_lock_slowpath+0x10/0x10 [ 107.455711][ T534] ? cgroup_file_poll+0xd0/0xd0 [ 107.460548][ T534] kernfs_fop_write_iter+0x2d5/0x450 [ 107.465857][ T534] new_sync_write+0x358/0x6e0 [ 107.470507][ T534] ? new_sync_read+0x6e0/0x6e0 [ 107.475243][ T534] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 107.481977][ T534] ? rw_verify_area+0xc3/0x2b0 [ 107.486711][ T534] vfs_write+0x4f5/0x750 [ 107.490926][ T534] ksys_write+0x111/0x210 [ 107.495224][ T534] ? __ia32_sys_read+0xa0/0xa0 [ 107.499970][ T534] ? debug_smp_processor_id+0x17/0x20 [ 107.505628][ T534] ? fpregs_assert_state_consistent+0x49/0xb0 [ 107.511875][ T534] __x64_sys_write+0x6e/0xb0 [ 107.516473][ T534] ? syscall_exit_to_user_mode+0x27/0x160 [ 107.522210][ T534] do_syscall_64+0x32/0x80 [ 107.526728][ T534] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 107.532610][ T534] RIP: 0033:0x7fabe7ed7ce9 [ 107.537279][ T534] 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 [ 107.556952][ T534] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 107.565333][ T534] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 107.573381][ T534] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 107.581332][ T534] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 107.589322][ T534] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 107.597312][ T534] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000018 [ 107.638130][ T536] FAULT_INJECTION: forcing a failure. [ 107.638130][ T536] name failslab, interval 1, probability 0, space 0, times 0 [ 107.651177][ T536] CPU: 0 PID: 536 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 107.661056][ T536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.671703][ T536] Call Trace: [ 107.675466][ T536] dump_stack+0x84/0xad [ 107.679820][ T536] should_fail.cold+0x5/0x1f [ 107.684434][ T536] ? find_next_bit+0x14/0x20 [ 107.688999][ T536] ? cgroup_exit_cftypes+0x150/0x150 [ 107.696170][ T536] ? percpu_ref_init+0xd1/0x380 [ 107.705720][ T536] __should_failslab+0xd8/0x120 [ 107.710572][ T536] should_failslab+0x9/0x20 [ 107.715056][ T536] kmem_cache_alloc_trace+0x3d/0x330 [ 107.720343][ T536] ? cgroup_exit_cftypes+0x150/0x150 [ 107.725607][ T536] percpu_ref_init+0xd1/0x380 [ 107.730272][ T536] cgroup_apply_control_enable+0x486/0xf10 [ 107.736051][ T536] cgroup_subtree_control_write+0x6d3/0xd60 [ 107.742145][ T536] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 107.748234][ T536] ? kfree+0xc2/0x560 [ 107.752369][ T536] ? __kasan_slab_free+0x129/0x170 [ 107.757569][ T536] cgroup_file_write+0x272/0x7c0 [ 107.762584][ T536] ? __kasan_check_write+0x14/0x20 [ 107.767776][ T536] ? cgroup_file_poll+0xd0/0xd0 [ 107.772611][ T536] ? __mutex_lock_slowpath+0x10/0x10 [ 107.777887][ T536] ? cgroup_file_poll+0xd0/0xd0 [ 107.782974][ T536] kernfs_fop_write_iter+0x2d5/0x450 [ 107.788230][ T536] new_sync_write+0x358/0x6e0 [ 107.794287][ T536] ? new_sync_read+0x6e0/0x6e0 [ 107.799121][ T536] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 107.805857][ T536] ? rw_verify_area+0xc3/0x2b0 [ 107.810589][ T536] vfs_write+0x4f5/0x750 [ 107.814883][ T536] ksys_write+0x111/0x210 [ 107.819180][ T536] ? __ia32_sys_read+0xa0/0xa0 [ 107.824053][ T536] ? debug_smp_processor_id+0x17/0x20 [ 107.829424][ T536] ? fpregs_assert_state_consistent+0x49/0xb0 [ 107.835489][ T536] __x64_sys_write+0x6e/0xb0 [ 107.840054][ T536] ? syscall_exit_to_user_mode+0x27/0x160 [ 107.845760][ T536] do_syscall_64+0x32/0x80 [ 107.850166][ T536] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 107.856031][ T536] RIP: 0033:0x7fabe7ed7ce9 [ 107.860417][ T536] 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 [ 107.880033][ T536] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 107.888534][ T536] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 107.896713][ T536] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 107.904669][ T536] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 107.912730][ T536] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 107.920768][ T536] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000010 [ 107.968147][ T535] FAULT_INJECTION: forcing a failure. [ 107.968147][ T535] name failslab, interval 1, probability 0, space 0, times 0 [ 107.980820][ T535] CPU: 0 PID: 535 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 107.990678][ T535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.000704][ T535] Call Trace: [ 108.003983][ T535] dump_stack+0x84/0xad [ 108.008130][ T535] should_fail.cold+0x5/0x1f [ 108.012695][ T535] ? find_next_bit+0x14/0x20 [ 108.017268][ T535] ? cgroup_exit_cftypes+0x150/0x150 [ 108.022531][ T535] ? percpu_ref_init+0xd1/0x380 [ 108.027359][ T535] __should_failslab+0xd8/0x120 [ 108.032357][ T535] should_failslab+0x9/0x20 [ 108.036881][ T535] kmem_cache_alloc_trace+0x3d/0x330 [ 108.042168][ T535] ? cgroup_exit_cftypes+0x150/0x150 [ 108.047444][ T535] percpu_ref_init+0xd1/0x380 [ 108.052124][ T535] cgroup_apply_control_enable+0x486/0xf10 [ 108.057926][ T535] cgroup_subtree_control_write+0x6d3/0xd60 [ 108.063800][ T535] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 108.071593][ T535] ? kfree+0xc2/0x560 [ 108.075556][ T535] ? __kasan_slab_free+0x129/0x170 [ 108.080644][ T535] cgroup_file_write+0x272/0x7c0 [ 108.085572][ T535] ? __kasan_check_write+0x14/0x20 [ 108.090652][ T535] ? cgroup_file_poll+0xd0/0xd0 [ 108.095475][ T535] ? __mutex_lock_slowpath+0x10/0x10 [ 108.100731][ T535] ? cgroup_file_poll+0xd0/0xd0 [ 108.105556][ T535] kernfs_fop_write_iter+0x2d5/0x450 [ 108.111007][ T535] new_sync_write+0x358/0x6e0 [ 108.115657][ T535] ? new_sync_read+0x6e0/0x6e0 [ 108.120404][ T535] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 108.127667][ T535] ? rw_verify_area+0xc3/0x2b0 [ 108.132685][ T535] vfs_write+0x4f5/0x750 [ 108.137130][ T535] ksys_write+0x111/0x210 [ 108.141449][ T535] ? __ia32_sys_read+0xa0/0xa0 [ 108.146220][ T535] ? debug_smp_processor_id+0x17/0x20 [ 108.151571][ T535] ? fpregs_assert_state_consistent+0x49/0xb0 [ 108.157674][ T535] __x64_sys_write+0x6e/0xb0 [ 108.162251][ T535] ? syscall_exit_to_user_mode+0x27/0x160 [ 108.168050][ T535] do_syscall_64+0x32/0x80 [ 108.172452][ T535] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 108.178321][ T535] RIP: 0033:0x7fabe7ed7ce9 [ 108.182816][ T535] 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 [ 108.202424][ T535] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 108.210827][ T535] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 108.218785][ T535] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 108.226844][ T535] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 108.234791][ T535] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 108.243006][ T535] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000c [ 108.278307][ T538] FAULT_INJECTION: forcing a failure. [ 108.278307][ T538] name failslab, interval 1, probability 0, space 0, times 0 [ 108.291074][ T538] CPU: 0 PID: 538 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 108.300947][ T538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.310984][ T538] Call Trace: [ 108.314258][ T538] dump_stack+0x84/0xad [ 108.318387][ T538] should_fail.cold+0x5/0x1f [ 108.322952][ T538] __should_failslab+0xd8/0x120 [ 108.327967][ T538] should_failslab+0x9/0x20 [ 108.332457][ T538] __kmalloc_track_caller+0x5c/0x360 [ 108.337991][ T538] ? __kernfs_new_node+0xaa/0x680 [ 108.343104][ T538] kstrdup_const+0x45/0x70 [ 108.347609][ T538] __kernfs_new_node+0xaa/0x680 [ 108.352619][ T538] ? kernfs_dop_revalidate+0x370/0x370 [ 108.358196][ T538] ? kasan_save_stack+0x42/0x50 [ 108.363485][ T538] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 108.369398][ T538] ? kasan_kmalloc+0x9/0x10 [ 108.374019][ T538] ? snprintf+0x9e/0xd0 [ 108.378279][ T538] ? vsprintf+0x20/0x20 [ 108.382414][ T538] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 108.388475][ T538] ? do_syscall_64+0x32/0x80 [ 108.393314][ T538] kernfs_new_node+0x79/0x110 [ 108.397977][ T538] ? __kasan_check_write+0x14/0x20 [ 108.403070][ T538] __kernfs_create_file+0x24/0x270 [ 108.408170][ T538] cgroup_addrm_files+0x2e2/0x830 [ 108.413182][ T538] ? cgroup_show_path+0x3d0/0x3d0 [ 108.418315][ T538] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 108.423787][ T538] ? __radix_tree_replace+0xd0/0x250 [ 108.429047][ T538] ? idr_replace+0x138/0x150 [ 108.433620][ T538] ? idr_get_next+0x130/0x130 [ 108.438276][ T538] css_populate_dir+0x17a/0x400 [ 108.443279][ T538] cgroup_apply_control_enable+0x39c/0xf10 [ 108.449055][ T538] cgroup_subtree_control_write+0x6d3/0xd60 [ 108.454920][ T538] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 108.460973][ T538] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 108.466766][ T538] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 108.472633][ T538] cgroup_file_write+0x272/0x7c0 [ 108.477552][ T538] ? __kasan_check_write+0x14/0x20 [ 108.482899][ T538] ? cgroup_file_poll+0xd0/0xd0 [ 108.487806][ T538] ? __mutex_lock_slowpath+0x10/0x10 [ 108.493101][ T538] ? cgroup_file_poll+0xd0/0xd0 [ 108.497919][ T538] kernfs_fop_write_iter+0x2d5/0x450 [ 108.503263][ T538] new_sync_write+0x358/0x6e0 [ 108.508010][ T538] ? new_sync_read+0x6e0/0x6e0 [ 108.512755][ T538] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 108.519756][ T538] ? rw_verify_area+0xc3/0x2b0 [ 108.524604][ T538] vfs_write+0x4f5/0x750 [ 108.528832][ T538] ksys_write+0x111/0x210 [ 108.533143][ T538] ? __ia32_sys_read+0xa0/0xa0 [ 108.537933][ T538] ? debug_smp_processor_id+0x17/0x20 [ 108.543290][ T538] ? fpregs_assert_state_consistent+0x49/0xb0 [ 108.550204][ T538] __x64_sys_write+0x6e/0xb0 [ 108.554773][ T538] ? syscall_exit_to_user_mode+0x27/0x160 [ 108.560477][ T538] do_syscall_64+0x32/0x80 [ 108.564883][ T538] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 108.570861][ T538] RIP: 0033:0x7fabe7ed7ce9 [ 108.575254][ T538] 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 [ 108.595197][ T538] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 108.603609][ T538] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 108.611573][ T538] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 108.619684][ T538] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 108.627658][ T538] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 108.635608][ T538] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000d [ 108.643866][ T538] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 108.652746][ T422] ------------[ cut here ]------------ [ 108.658269][ T422] WARNING: CPU: 1 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 108.667311][ T422] Modules linked in: [ 108.671432][ T422] CPU: 1 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 108.681463][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.691565][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 108.697187][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 108.716849][ T422] RSP: 0018:ffffc90000767c28 EFLAGS: 00010282 [ 108.723055][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecf8c RCX: 0000000000000002 [ 108.731160][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 108.739141][ T422] RBP: ffffc90000767ce8 R08: 0000000000000000 R09: 0000000000000008 [ 108.747092][ T422] R10: fffff520000ecf78 R11: ffff8881f7155bc0 R12: ffffc90000767c80 [ 108.755095][ T422] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810e4b4d80 [ 108.763097][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 108.772041][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.778633][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506a0 [ 108.786582][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 108.794574][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 108.802546][ T422] Call Trace: [ 108.805832][ T422] ? clone_private_mount+0x300/0x300 [ 108.811195][ T422] ? change_mnt_propagation+0x5df/0xd40 [ 108.816747][ T422] namespace_unlock+0x331/0x3e0 [ 108.821607][ T422] ? kern_unmount+0xb0/0xb0 [ 108.826107][ T422] ? unhash_mnt+0x3b0/0x3b0 [ 108.830622][ T422] path_umount+0x665/0x1170 [ 108.835099][ T422] ? __detach_mounts+0x210/0x210 [ 108.840117][ T422] ? user_path_at_empty+0xa2/0xf0 [ 108.845384][ T422] __x64_sys_umount+0xfb/0x120 [ 108.850152][ T422] ? path_umount+0x1170/0x1170 [ 108.854897][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 108.860946][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 108.866635][ T422] do_syscall_64+0x32/0x80 [ 108.871072][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 108.877127][ T422] RIP: 0033:0x7fabe7ed9097 [ 108.881524][ T422] 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 [ 108.901154][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 108.909655][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 108.917621][ T422] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 108.925585][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 108.933539][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 108.941502][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000e [ 108.949462][ T422] ---[ end trace a21a7dc9bb3febfe ]--- [ 108.955029][ T422] ------------[ cut here ]------------ [ 108.960511][ T422] WARNING: CPU: 1 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 108.969468][ T422] Modules linked in: [ 108.973363][ T422] CPU: 1 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 108.983238][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.993379][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 108.998994][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 109.018588][ T422] RSP: 0018:ffffc90000767cf0 EFLAGS: 00010282 [ 109.024640][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecfa5 RCX: 0000000000000002 [ 109.032588][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 109.040548][ T422] RBP: ffffc90000767db0 R08: 0000000000000000 R09: 0000000000000008 [ 109.048501][ T422] R10: fffff520000ecf91 R11: ffff8881f7155bc0 R12: ffffc90000767d48 [ 109.056445][ T422] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810e4b4d80 [ 109.064409][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 109.073779][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.080348][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506a0 [ 109.088479][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 109.096437][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 109.104388][ T422] Call Trace: [ 109.107653][ T422] ? namespace_unlock+0x331/0x3e0 [ 109.112671][ T422] ? clone_private_mount+0x300/0x300 [ 109.117932][ T422] ? dput+0xac/0x8a0 [ 109.121798][ T422] path_umount+0x6a3/0x1170 [ 109.126267][ T422] ? __detach_mounts+0x210/0x210 [ 109.131182][ T422] ? user_path_at_empty+0xa2/0xf0 [ 109.136172][ T422] __x64_sys_umount+0xfb/0x120 [ 109.140932][ T422] ? path_umount+0x1170/0x1170 [ 109.145665][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 109.151727][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 109.157342][ T422] do_syscall_64+0x32/0x80 [ 109.161738][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 109.167599][ T422] RIP: 0033:0x7fabe7ed9097 [ 109.172025][ T422] 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 [ 109.192148][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 109.200570][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 109.208518][ T422] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 109.216474][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 109.224436][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 109.232412][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000e [ 109.240370][ T422] ---[ end trace a21a7dc9bb3febff ]--- [ 109.246374][ T540] FAULT_INJECTION: forcing a failure. [ 109.246374][ T540] name failslab, interval 1, probability 0, space 0, times 0 [ 109.259124][ T540] CPU: 1 PID: 540 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 109.268996][ T540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.279051][ T540] Call Trace: [ 109.282422][ T540] dump_stack+0x84/0xad [ 109.286561][ T540] should_fail.cold+0x5/0x1f [ 109.291129][ T540] ? find_next_bit+0x14/0x20 [ 109.295714][ T540] ? cgroup_exit_cftypes+0x150/0x150 [ 109.300981][ T540] ? percpu_ref_init+0xd1/0x380 [ 109.305810][ T540] __should_failslab+0xd8/0x120 [ 109.310634][ T540] should_failslab+0x9/0x20 [ 109.315124][ T540] kmem_cache_alloc_trace+0x3d/0x330 [ 109.320398][ T540] ? cgroup_exit_cftypes+0x150/0x150 [ 109.325668][ T540] percpu_ref_init+0xd1/0x380 [ 109.330329][ T540] cgroup_apply_control_enable+0x486/0xf10 [ 109.336112][ T540] cgroup_subtree_control_write+0x6d3/0xd60 [ 109.341990][ T540] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 109.348068][ T540] ? kfree+0xc2/0x560 [ 109.352029][ T540] ? __kasan_slab_free+0x129/0x170 [ 109.357135][ T540] cgroup_file_write+0x272/0x7c0 [ 109.362050][ T540] ? __kasan_check_write+0x14/0x20 [ 109.367154][ T540] ? cgroup_file_poll+0xd0/0xd0 [ 109.372159][ T540] ? __mutex_lock_slowpath+0x10/0x10 [ 109.377414][ T540] ? cgroup_file_poll+0xd0/0xd0 [ 109.382242][ T540] kernfs_fop_write_iter+0x2d5/0x450 [ 109.387510][ T540] new_sync_write+0x358/0x6e0 [ 109.392154][ T540] ? new_sync_read+0x6e0/0x6e0 [ 109.396883][ T540] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 109.403605][ T540] ? rw_verify_area+0xc3/0x2b0 [ 109.408335][ T540] vfs_write+0x4f5/0x750 [ 109.412540][ T540] ksys_write+0x111/0x210 [ 109.416845][ T540] ? __ia32_sys_read+0xa0/0xa0 [ 109.421581][ T540] ? debug_smp_processor_id+0x17/0x20 [ 109.426940][ T540] ? fpregs_assert_state_consistent+0x49/0xb0 [ 109.433004][ T540] __x64_sys_write+0x6e/0xb0 [ 109.437573][ T540] ? syscall_exit_to_user_mode+0x27/0x160 [ 109.443265][ T540] do_syscall_64+0x32/0x80 [ 109.447667][ T540] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 109.453550][ T540] RIP: 0033:0x7fabe7ed7ce9 [ 109.457976][ T540] 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 [ 109.477643][ T540] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 109.486033][ T540] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 109.494074][ T540] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 109.502020][ T540] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 109.509966][ T540] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 109.517913][ T540] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000011 [ 109.598175][ T539] FAULT_INJECTION: forcing a failure. [ 109.598175][ T539] name failslab, interval 1, probability 0, space 0, times 0 [ 109.610951][ T539] CPU: 1 PID: 539 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 109.620929][ T539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.630963][ T539] Call Trace: [ 109.634241][ T539] dump_stack+0x84/0xad [ 109.638367][ T539] should_fail.cold+0x5/0x1f [ 109.642925][ T539] ? find_next_bit+0x14/0x20 [ 109.647483][ T539] ? cgroup_exit_cftypes+0x150/0x150 [ 109.652833][ T539] ? percpu_ref_init+0xd1/0x380 [ 109.657652][ T539] __should_failslab+0xd8/0x120 [ 109.662481][ T539] should_failslab+0x9/0x20 [ 109.666969][ T539] kmem_cache_alloc_trace+0x3d/0x330 [ 109.672410][ T539] ? cgroup_exit_cftypes+0x150/0x150 [ 109.677682][ T539] percpu_ref_init+0xd1/0x380 [ 109.682436][ T539] cgroup_apply_control_enable+0x486/0xf10 [ 109.688339][ T539] cgroup_subtree_control_write+0x6d3/0xd60 [ 109.694214][ T539] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 109.700281][ T539] ? kfree+0xc2/0x560 [ 109.704234][ T539] ? __kasan_check_write+0x14/0x20 [ 109.709316][ T539] cgroup_file_write+0x272/0x7c0 [ 109.714239][ T539] ? __kasan_check_write+0x14/0x20 [ 109.719335][ T539] ? cgroup_file_poll+0xd0/0xd0 [ 109.724249][ T539] ? __mutex_lock_slowpath+0x10/0x10 [ 109.729521][ T539] ? cgroup_file_poll+0xd0/0xd0 [ 109.734559][ T539] kernfs_fop_write_iter+0x2d5/0x450 [ 109.739827][ T539] new_sync_write+0x358/0x6e0 [ 109.744488][ T539] ? new_sync_read+0x6e0/0x6e0 [ 109.749250][ T539] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 109.755987][ T539] ? rw_verify_area+0xc3/0x2b0 [ 109.761143][ T539] vfs_write+0x4f5/0x750 [ 109.765385][ T539] ksys_write+0x111/0x210 [ 109.769698][ T539] ? __ia32_sys_read+0xa0/0xa0 [ 109.774453][ T539] ? debug_smp_processor_id+0x17/0x20 [ 109.779834][ T539] ? fpregs_assert_state_consistent+0x49/0xb0 [ 109.785972][ T539] __x64_sys_write+0x6e/0xb0 [ 109.790551][ T539] ? syscall_exit_to_user_mode+0x27/0x160 [ 109.796417][ T539] do_syscall_64+0x32/0x80 [ 109.800823][ T539] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 109.807393][ T539] RIP: 0033:0x7fabe7ed7ce9 [ 109.811798][ T539] 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 [ 109.831547][ T539] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 109.839937][ T539] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 109.847880][ T539] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 109.855823][ T539] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 109.863956][ T539] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 109.872274][ T539] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000019 [ 109.908437][ T537] FAULT_INJECTION: forcing a failure. [ 109.908437][ T537] name failslab, interval 1, probability 0, space 0, times 0 [ 109.921127][ T537] CPU: 1 PID: 537 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 109.931035][ T537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.941364][ T537] Call Trace: [ 109.944646][ T537] dump_stack+0x84/0xad [ 109.948905][ T537] should_fail.cold+0x5/0x1f [ 109.953515][ T537] ? find_next_bit+0x14/0x20 [ 109.958245][ T537] ? cgroup_exit_cftypes+0x150/0x150 [ 109.963847][ T537] ? percpu_ref_init+0xd1/0x380 [ 109.968789][ T537] __should_failslab+0xd8/0x120 [ 109.973624][ T537] should_failslab+0x9/0x20 [ 109.978105][ T537] kmem_cache_alloc_trace+0x3d/0x330 [ 109.983385][ T537] ? cgroup_exit_cftypes+0x150/0x150 [ 109.988665][ T537] percpu_ref_init+0xd1/0x380 [ 109.993343][ T537] cgroup_apply_control_enable+0x486/0xf10 [ 109.999132][ T537] cgroup_subtree_control_write+0x6d3/0xd60 [ 110.005023][ T537] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 110.011302][ T537] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 110.017105][ T537] cgroup_file_write+0x272/0x7c0 [ 110.022037][ T537] ? __kasan_check_write+0x14/0x20 [ 110.027144][ T537] ? cgroup_file_poll+0xd0/0xd0 [ 110.031996][ T537] ? __mutex_lock_slowpath+0x10/0x10 [ 110.037265][ T537] ? cgroup_file_poll+0xd0/0xd0 [ 110.042102][ T537] kernfs_fop_write_iter+0x2d5/0x450 [ 110.047457][ T537] new_sync_write+0x358/0x6e0 [ 110.052109][ T537] ? new_sync_read+0x6e0/0x6e0 [ 110.056864][ T537] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 110.063669][ T537] ? rw_verify_area+0xc3/0x2b0 [ 110.068640][ T537] vfs_write+0x4f5/0x750 [ 110.072981][ T537] ksys_write+0x111/0x210 [ 110.077305][ T537] ? __ia32_sys_read+0xa0/0xa0 [ 110.082138][ T537] ? debug_smp_processor_id+0x17/0x20 [ 110.087509][ T537] ? fpregs_assert_state_consistent+0x49/0xb0 [ 110.093553][ T537] __x64_sys_write+0x6e/0xb0 [ 110.098180][ T537] ? syscall_exit_to_user_mode+0x27/0x160 [ 110.103875][ T537] do_syscall_64+0x32/0x80 [ 110.108278][ T537] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 110.114152][ T537] RIP: 0033:0x7fabe7ed7ce9 [ 110.118550][ T537] 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 [ 110.138230][ T537] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 110.146629][ T537] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 110.154836][ T537] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 110.162795][ T537] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 110.170736][ T537] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 110.178857][ T537] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000009 [ 110.188755][ T424] ------------[ cut here ]------------ [ 110.194265][ T424] WARNING: CPU: 1 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 110.203255][ T424] Modules linked in: [ 110.207152][ T424] CPU: 1 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 110.217045][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.227207][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 110.232836][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 110.252449][ T424] RSP: 0018:ffffc900007b7c28 EFLAGS: 00010282 [ 110.258528][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6f8c RCX: 0000000000000002 [ 110.266605][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 110.274877][ T424] RBP: ffffc900007b7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 110.283316][ T424] R10: fffff520000f6f78 R11: ffff8881f7155bc0 R12: ffffc900007b7c80 [ 110.291318][ T424] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810d686d80 [ 110.299293][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 110.308221][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.314798][ T424] CR2: 00007ffc76d2fff8 CR3: 0000000116c61000 CR4: 00000000003506a0 [ 110.322880][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 110.330862][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 110.338829][ T424] Call Trace: [ 110.342103][ T424] ? clone_private_mount+0x300/0x300 [ 110.347375][ T424] ? change_mnt_propagation+0x5df/0xd40 [ 110.352921][ T424] namespace_unlock+0x331/0x3e0 [ 110.357867][ T424] ? kern_unmount+0xb0/0xb0 [ 110.362346][ T424] ? unhash_mnt+0x3b0/0x3b0 [ 110.366828][ T424] path_umount+0x665/0x1170 [ 110.371337][ T424] ? __detach_mounts+0x210/0x210 [ 110.376261][ T424] ? user_path_at_empty+0xa2/0xf0 [ 110.381360][ T424] __x64_sys_umount+0xfb/0x120 [ 110.386279][ T424] ? path_umount+0x1170/0x1170 [ 110.391050][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 110.397098][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 110.402823][ T424] do_syscall_64+0x32/0x80 [ 110.407222][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 110.413543][ T424] RIP: 0033:0x7fabe7ed9097 [ 110.417975][ T424] 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 [ 110.437835][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 110.446231][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 110.454483][ T424] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 110.462453][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 110.470437][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 110.478408][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000a [ 110.486466][ T424] ---[ end trace a21a7dc9bb3fec00 ]--- [ 110.492142][ T424] ------------[ cut here ]------------ [ 110.497622][ T424] WARNING: CPU: 1 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 110.506550][ T424] Modules linked in: [ 110.510513][ T424] CPU: 1 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 110.520575][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.530634][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 110.536644][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 110.556517][ T424] RSP: 0018:ffffc900007b7cf0 EFLAGS: 00010282 [ 110.562716][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6fa5 RCX: 0000000000000002 [ 110.570704][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 110.578963][ T424] RBP: ffffc900007b7db0 R08: 0000000000000000 R09: 0000000000000008 [ 110.587471][ T424] R10: fffff520000f6f91 R11: ffff8881f7155bc0 R12: ffffc900007b7d48 [ 110.595467][ T424] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810d686d80 [ 110.603490][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 110.612514][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.619097][ T424] CR2: 00007ffc76d2fff8 CR3: 0000000116c61000 CR4: 00000000003506a0 [ 110.627234][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 110.635395][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 110.643919][ T424] Call Trace: [ 110.647281][ T424] ? namespace_unlock+0x331/0x3e0 [ 110.652387][ T424] ? clone_private_mount+0x300/0x300 [ 110.662465][ T424] ? dput+0xac/0x8a0 [ 110.666349][ T424] path_umount+0x6a3/0x1170 [ 110.670847][ T424] ? __detach_mounts+0x210/0x210 [ 110.675958][ T424] ? user_path_at_empty+0xa2/0xf0 [ 110.681004][ T424] __x64_sys_umount+0xfb/0x120 [ 110.686507][ T424] ? path_umount+0x1170/0x1170 [ 110.691280][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 110.697327][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 110.702965][ T424] do_syscall_64+0x32/0x80 [ 110.707366][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 110.713390][ T424] RIP: 0033:0x7fabe7ed9097 [ 110.717923][ T424] 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 [ 110.737720][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 110.746128][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 110.754282][ T424] RDX: 00007ffc76d30359 RSI: 000000000000000a RDI: 00007ffc76d30350 [ 110.762351][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 110.770322][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 110.778305][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000a [ 110.786382][ T424] ---[ end trace a21a7dc9bb3fec01 ]--- [ 110.793130][ T542] FAULT_INJECTION: forcing a failure. [ 110.793130][ T542] name failslab, interval 1, probability 0, space 0, times 0 [ 110.805743][ T542] CPU: 1 PID: 542 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 110.815613][ T542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.825731][ T542] Call Trace: [ 110.829002][ T542] dump_stack+0x84/0xad [ 110.833125][ T542] should_fail.cold+0x5/0x1f [ 110.838296][ T542] ? find_next_bit+0x14/0x20 [ 110.843379][ T542] ? cgroup_exit_cftypes+0x150/0x150 [ 110.848653][ T542] ? percpu_ref_init+0xd1/0x380 [ 110.853474][ T542] __should_failslab+0xd8/0x120 [ 110.858325][ T542] should_failslab+0x9/0x20 [ 110.862807][ T542] kmem_cache_alloc_trace+0x3d/0x330 [ 110.868068][ T542] ? cgroup_exit_cftypes+0x150/0x150 [ 110.873323][ T542] percpu_ref_init+0xd1/0x380 [ 110.877978][ T542] cgroup_apply_control_enable+0x486/0xf10 [ 110.883771][ T542] cgroup_subtree_control_write+0x6d3/0xd60 [ 110.889632][ T542] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 110.895688][ T542] ? kfree+0xc2/0x560 [ 110.899820][ T542] ? kernfs_fop_write_iter+0x1b4/0x450 [ 110.905248][ T542] ? __kasan_slab_free+0x129/0x170 [ 110.910335][ T542] cgroup_file_write+0x272/0x7c0 [ 110.915242][ T542] ? __kasan_check_write+0x14/0x20 [ 110.920418][ T542] ? cgroup_file_poll+0xd0/0xd0 [ 110.925245][ T542] ? __mutex_lock_slowpath+0x10/0x10 [ 110.930495][ T542] ? cgroup_file_poll+0xd0/0xd0 [ 110.935316][ T542] kernfs_fop_write_iter+0x2d5/0x450 [ 110.940567][ T542] new_sync_write+0x358/0x6e0 [ 110.945209][ T542] ? new_sync_read+0x6e0/0x6e0 [ 110.949952][ T542] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 110.956689][ T542] ? rw_verify_area+0xc3/0x2b0 [ 110.961431][ T542] vfs_write+0x4f5/0x750 [ 110.965659][ T542] ksys_write+0x111/0x210 [ 110.969972][ T542] ? __ia32_sys_read+0xa0/0xa0 [ 110.974718][ T542] ? debug_smp_processor_id+0x17/0x20 [ 110.980061][ T542] ? fpregs_assert_state_consistent+0x49/0xb0 [ 110.986118][ T542] __x64_sys_write+0x6e/0xb0 [ 110.990773][ T542] ? syscall_exit_to_user_mode+0x27/0x160 [ 110.996855][ T542] do_syscall_64+0x32/0x80 [ 111.001336][ T542] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 111.007194][ T542] RIP: 0033:0x7fabe7ed7ce9 [ 111.011786][ T542] 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 [ 111.031971][ T542] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 111.040362][ T542] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 111.048316][ T542] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 111.056278][ T542] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 111.064229][ T542] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 111.072436][ T542] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000e [ 111.158150][ T541] FAULT_INJECTION: forcing a failure. [ 111.158150][ T541] name failslab, interval 1, probability 0, space 0, times 0 [ 111.170884][ T541] CPU: 0 PID: 541 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 111.180755][ T541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.190792][ T541] Call Trace: [ 111.194065][ T541] dump_stack+0x84/0xad [ 111.198280][ T541] should_fail.cold+0x5/0x1f [ 111.202925][ T541] ? find_next_bit+0x14/0x20 [ 111.207509][ T541] ? cgroup_exit_cftypes+0x150/0x150 [ 111.212759][ T541] ? percpu_ref_init+0xd1/0x380 [ 111.217581][ T541] __should_failslab+0xd8/0x120 [ 111.222412][ T541] should_failslab+0x9/0x20 [ 111.226883][ T541] kmem_cache_alloc_trace+0x3d/0x330 [ 111.232137][ T541] ? cgroup_exit_cftypes+0x150/0x150 [ 111.237409][ T541] percpu_ref_init+0xd1/0x380 [ 111.242064][ T541] cgroup_apply_control_enable+0x486/0xf10 [ 111.247836][ T541] cgroup_subtree_control_write+0x6d3/0xd60 [ 111.253693][ T541] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 111.259727][ T541] ? kernfs_fop_write_iter+0x1b4/0x450 [ 111.265154][ T541] ? check_preempt_wakeup+0x32d/0x830 [ 111.270497][ T541] ? select_task_rq_fair+0x3af0/0x3af0 [ 111.275934][ T541] cgroup_file_write+0x272/0x7c0 [ 111.280839][ T541] ? __kasan_check_write+0x14/0x20 [ 111.285933][ T541] ? cgroup_file_poll+0xd0/0xd0 [ 111.290758][ T541] ? __mutex_lock_slowpath+0x10/0x10 [ 111.296014][ T541] ? cgroup_file_poll+0xd0/0xd0 [ 111.300836][ T541] kernfs_fop_write_iter+0x2d5/0x450 [ 111.306111][ T541] new_sync_write+0x358/0x6e0 [ 111.310761][ T541] ? _raw_spin_lock_irq+0x87/0x120 [ 111.315840][ T541] ? new_sync_read+0x6e0/0x6e0 [ 111.321966][ T541] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 111.328872][ T541] ? rw_verify_area+0xc3/0x2b0 [ 111.333602][ T541] vfs_write+0x4f5/0x750 [ 111.337867][ T541] ksys_write+0x111/0x210 [ 111.342175][ T541] ? sched_clock_cpu+0x1b/0x260 [ 111.346996][ T541] ? __ia32_sys_read+0xa0/0xa0 [ 111.351729][ T541] ? debug_smp_processor_id+0x17/0x20 [ 111.357069][ T541] ? fpregs_assert_state_consistent+0x49/0xb0 [ 111.363103][ T541] __x64_sys_write+0x6e/0xb0 [ 111.367660][ T541] ? syscall_exit_to_user_mode+0x27/0x160 [ 111.373431][ T541] do_syscall_64+0x32/0x80 [ 111.377853][ T541] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 111.383720][ T541] RIP: 0033:0x7fabe7ed7ce9 [ 111.388123][ T541] 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 [ 111.408482][ T541] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 111.417216][ T541] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 111.425339][ T541] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 111.433464][ T541] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 111.441406][ T541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 111.449445][ T541] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000d [ 111.459128][ T421] ------------[ cut here ]------------ [ 111.464688][ T421] WARNING: CPU: 1 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 111.473837][ T421] Modules linked in: [ 111.477725][ T421] CPU: 1 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 111.487641][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.497931][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 111.503541][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 111.523619][ T421] RSP: 0018:ffffc90000757c28 EFLAGS: 00010282 [ 111.529776][ T421] RAX: 0000000000000000 RBX: 1ffff920000eaf8c RCX: 0000000000000002 [ 111.538178][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 111.546164][ T421] RBP: ffffc90000757ce8 R08: 0000000000000000 R09: 0000000000000008 [ 111.554265][ T421] R10: fffff520000eaf78 R11: ffff8881f7155bc0 R12: ffffc90000757c80 [ 111.562282][ T421] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810e4b4000 [ 111.570460][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 111.579619][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 111.586197][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506a0 [ 111.594392][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 111.602384][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 111.610375][ T421] Call Trace: [ 111.613657][ T421] ? clone_private_mount+0x300/0x300 [ 111.618945][ T421] ? change_mnt_propagation+0x5df/0xd40 [ 111.624475][ T421] namespace_unlock+0x331/0x3e0 [ 111.629365][ T421] ? kern_unmount+0xb0/0xb0 [ 111.633881][ T421] ? unhash_mnt+0x3b0/0x3b0 [ 111.638495][ T421] path_umount+0x665/0x1170 [ 111.642991][ T421] ? __detach_mounts+0x210/0x210 [ 111.647940][ T421] ? user_path_at_empty+0xa2/0xf0 [ 111.652945][ T421] __x64_sys_umount+0xfb/0x120 [ 111.657701][ T421] ? path_umount+0x1170/0x1170 [ 111.662556][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 111.669069][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 111.674681][ T421] do_syscall_64+0x32/0x80 [ 111.679094][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 111.685057][ T421] RIP: 0033:0x7fabe7ed9097 [ 111.689468][ T421] 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 [ 111.709162][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 111.717549][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 111.725530][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 111.733513][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 111.741489][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 111.749516][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000e [ 111.757580][ T421] ---[ end trace a21a7dc9bb3fec02 ]--- [ 111.763394][ T421] ------------[ cut here ]------------ [ 111.768883][ T421] WARNING: CPU: 1 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 111.777919][ T421] Modules linked in: [ 111.781800][ T421] CPU: 1 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 111.791708][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.801890][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 111.807605][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 111.827291][ T421] RSP: 0018:ffffc90000757cf0 EFLAGS: 00010282 [ 111.833477][ T421] RAX: 0000000000000000 RBX: 1ffff920000eafa5 RCX: 0000000000000002 [ 111.841436][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 111.849407][ T421] RBP: ffffc90000757db0 R08: 0000000000000000 R09: 0000000000000008 [ 111.857356][ T421] R10: fffff520000eaf91 R11: ffff8881f7155bc0 R12: ffffc90000757d48 [ 111.865334][ T421] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810e4b4000 [ 111.873297][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 111.882214][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 111.888781][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506a0 [ 111.896818][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 111.905036][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 111.913185][ T421] Call Trace: [ 111.916454][ T421] ? namespace_unlock+0x331/0x3e0 [ 111.921478][ T421] ? clone_private_mount+0x300/0x300 [ 111.926731][ T421] ? dput+0xac/0x8a0 [ 111.930604][ T421] path_umount+0x6a3/0x1170 [ 111.935096][ T421] ? __detach_mounts+0x210/0x210 [ 111.940025][ T421] ? user_path_at_empty+0xa2/0xf0 [ 111.945017][ T421] __x64_sys_umount+0xfb/0x120 [ 111.949768][ T421] ? path_umount+0x1170/0x1170 [ 111.954501][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 111.960551][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 111.966154][ T421] do_syscall_64+0x32/0x80 [ 111.970550][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 111.976410][ T421] RIP: 0033:0x7fabe7ed9097 [ 111.980805][ T421] 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 [ 112.000650][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 112.009049][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 112.016991][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 112.024945][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 112.032898][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 112.040861][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000e [ 112.048814][ T421] ---[ end trace a21a7dc9bb3fec03 ]--- [ 112.054652][ T543] FAULT_INJECTION: forcing a failure. [ 112.054652][ T543] name failslab, interval 1, probability 0, space 0, times 0 [ 112.067480][ T543] CPU: 0 PID: 543 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 112.077598][ T543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.087633][ T543] Call Trace: [ 112.090912][ T543] dump_stack+0x84/0xad [ 112.095106][ T543] should_fail.cold+0x5/0x1f [ 112.099672][ T543] ? find_next_bit+0x14/0x20 [ 112.104238][ T543] ? cgroup_exit_cftypes+0x150/0x150 [ 112.109665][ T543] ? percpu_ref_init+0xd1/0x380 [ 112.114485][ T543] __should_failslab+0xd8/0x120 [ 112.119308][ T543] should_failslab+0x9/0x20 [ 112.123797][ T543] kmem_cache_alloc_trace+0x3d/0x330 [ 112.129062][ T543] ? cgroup_exit_cftypes+0x150/0x150 [ 112.134326][ T543] percpu_ref_init+0xd1/0x380 [ 112.139006][ T543] cgroup_apply_control_enable+0x486/0xf10 [ 112.144786][ T543] cgroup_subtree_control_write+0x6d3/0xd60 [ 112.150669][ T543] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 112.156716][ T543] ? kfree+0xc2/0x560 [ 112.160666][ T543] ? __kasan_slab_free+0x129/0x170 [ 112.165768][ T543] cgroup_file_write+0x272/0x7c0 [ 112.170683][ T543] ? __kasan_check_write+0x14/0x20 [ 112.175770][ T543] ? cgroup_file_poll+0xd0/0xd0 [ 112.180610][ T543] ? __mutex_lock_slowpath+0x10/0x10 [ 112.185867][ T543] ? cgroup_file_poll+0xd0/0xd0 [ 112.190802][ T543] kernfs_fop_write_iter+0x2d5/0x450 [ 112.196057][ T543] new_sync_write+0x358/0x6e0 [ 112.200702][ T543] ? new_sync_read+0x6e0/0x6e0 [ 112.205436][ T543] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 112.212176][ T543] ? rw_verify_area+0xc3/0x2b0 [ 112.216912][ T543] vfs_write+0x4f5/0x750 [ 112.221121][ T543] ksys_write+0x111/0x210 [ 112.225437][ T543] ? __ia32_sys_read+0xa0/0xa0 [ 112.230184][ T543] ? debug_smp_processor_id+0x17/0x20 [ 112.235525][ T543] ? fpregs_assert_state_consistent+0x49/0xb0 [ 112.241560][ T543] __x64_sys_write+0x6e/0xb0 [ 112.246134][ T543] ? syscall_exit_to_user_mode+0x27/0x160 [ 112.251820][ T543] do_syscall_64+0x32/0x80 [ 112.256207][ T543] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 112.262069][ T543] RIP: 0033:0x7fabe7ed7ce9 [ 112.266454][ T543] 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 [ 112.286028][ T543] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 112.294408][ T543] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 112.302351][ T543] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 112.310303][ T543] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 112.318249][ T543] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 112.326468][ T543] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000012 [ 112.378116][ T544] FAULT_INJECTION: forcing a failure. [ 112.378116][ T544] name failslab, interval 1, probability 0, space 0, times 0 [ 112.390976][ T544] CPU: 1 PID: 544 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 112.400832][ T544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.410946][ T544] Call Trace: [ 112.414207][ T544] dump_stack+0x84/0xad [ 112.418334][ T544] should_fail.cold+0x5/0x1f [ 112.422897][ T544] ? find_next_bit+0x14/0x20 [ 112.427465][ T544] ? cgroup_exit_cftypes+0x150/0x150 [ 112.432715][ T544] ? percpu_ref_init+0xd1/0x380 [ 112.437535][ T544] __should_failslab+0xd8/0x120 [ 112.442383][ T544] should_failslab+0x9/0x20 [ 112.446865][ T544] kmem_cache_alloc_trace+0x3d/0x330 [ 112.452125][ T544] ? cgroup_exit_cftypes+0x150/0x150 [ 112.457469][ T544] percpu_ref_init+0xd1/0x380 [ 112.462127][ T544] cgroup_apply_control_enable+0x486/0xf10 [ 112.467991][ T544] cgroup_subtree_control_write+0x6d3/0xd60 [ 112.473875][ T544] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 112.479919][ T544] ? kfree+0xc2/0x560 [ 112.483880][ T544] ? __kasan_slab_free+0x129/0x170 [ 112.488967][ T544] cgroup_file_write+0x272/0x7c0 [ 112.493879][ T544] ? __kasan_check_write+0x14/0x20 [ 112.498976][ T544] ? cgroup_file_poll+0xd0/0xd0 [ 112.503797][ T544] ? __mutex_lock_slowpath+0x10/0x10 [ 112.509072][ T544] ? cgroup_file_poll+0xd0/0xd0 [ 112.514014][ T544] kernfs_fop_write_iter+0x2d5/0x450 [ 112.519309][ T544] new_sync_write+0x358/0x6e0 [ 112.524056][ T544] ? new_sync_read+0x6e0/0x6e0 [ 112.528795][ T544] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 112.535616][ T544] ? rw_verify_area+0xc3/0x2b0 [ 112.540546][ T544] vfs_write+0x4f5/0x750 [ 112.545288][ T544] ksys_write+0x111/0x210 [ 112.549593][ T544] ? __ia32_sys_read+0xa0/0xa0 [ 112.554331][ T544] ? debug_smp_processor_id+0x17/0x20 [ 112.559686][ T544] ? fpregs_assert_state_consistent+0x49/0xb0 [ 112.565744][ T544] __x64_sys_write+0x6e/0xb0 [ 112.570364][ T544] ? syscall_exit_to_user_mode+0x27/0x160 [ 112.576155][ T544] do_syscall_64+0x32/0x80 [ 112.580545][ T544] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 112.586408][ T544] RIP: 0033:0x7fabe7ed7ce9 [ 112.590792][ T544] 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 [ 112.610467][ T544] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 112.618893][ T544] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 112.626832][ T544] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 112.634874][ T544] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 112.642810][ T544] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 112.650747][ T544] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000001a [ 112.661475][ T423] ------------[ cut here ]------------ [ 112.666952][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 112.675891][ T423] Modules linked in: [ 112.679841][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 112.689726][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.699808][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 112.705411][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 112.725019][ T423] RSP: 0018:ffffc900007a7c28 EFLAGS: 00010282 [ 112.731095][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4f8c RCX: 0000000000000002 [ 112.739064][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 112.747025][ T423] RBP: ffffc900007a7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 112.754995][ T423] R10: fffff520000f4f78 R11: ffff8881f7155bc0 R12: ffffc900007a7c80 [ 112.762954][ T423] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810e4b5980 [ 112.770924][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 112.779846][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 112.786401][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 112.794364][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 112.802325][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 112.810285][ T423] Call Trace: [ 112.813557][ T423] ? clone_private_mount+0x300/0x300 [ 112.818828][ T423] ? change_mnt_propagation+0x5df/0xd40 [ 112.824346][ T423] namespace_unlock+0x331/0x3e0 [ 112.829185][ T423] ? kern_unmount+0xb0/0xb0 [ 112.833667][ T423] ? unhash_mnt+0x3b0/0x3b0 [ 112.838216][ T423] path_umount+0x665/0x1170 [ 112.842688][ T423] ? __detach_mounts+0x210/0x210 [ 112.847590][ T423] ? user_path_at_empty+0xa2/0xf0 [ 112.852607][ T423] __x64_sys_umount+0xfb/0x120 [ 112.857341][ T423] ? path_umount+0x1170/0x1170 [ 112.862081][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 112.868124][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 112.873725][ T423] do_syscall_64+0x32/0x80 [ 112.878123][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 112.883978][ T423] RIP: 0033:0x7fabe7ed9097 [ 112.888370][ T423] 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 [ 112.907964][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 112.916342][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 112.924290][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 112.932240][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 112.940186][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 112.948228][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000001b [ 112.956171][ T423] ---[ end trace a21a7dc9bb3fec04 ]--- [ 112.961824][ T423] ------------[ cut here ]------------ [ 112.967377][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 112.976363][ T423] Modules linked in: [ 112.980313][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 112.990259][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.000300][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 113.005910][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 113.025493][ T423] RSP: 0018:ffffc900007a7cf0 EFLAGS: 00010282 [ 113.028020][ T545] FAULT_INJECTION: forcing a failure. [ 113.028020][ T545] name failslab, interval 1, probability 0, space 0, times 0 [ 113.031673][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4fa5 RCX: 0000000000000002 [ 113.052188][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 113.060140][ T423] RBP: ffffc900007a7db0 R08: 0000000000000000 R09: 0000000000000008 [ 113.068192][ T423] R10: fffff520000f4f91 R11: ffff8881f7155bc0 R12: ffffc900007a7d48 [ 113.076133][ T423] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810e4b5980 [ 113.076443][ T545] CPU: 0 PID: 545 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 113.084170][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 113.094107][ T545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.094111][ T545] Call Trace: [ 113.094127][ T545] dump_stack+0x84/0xad [ 113.094134][ T545] should_fail.cold+0x5/0x1f [ 113.103627][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.113727][ T545] ? pids_css_alloc+0x3c/0x130 [ 113.113735][ T545] __should_failslab+0xd8/0x120 [ 113.117071][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 113.121196][ T545] should_failslab+0x9/0x20 [ 113.121204][ T545] kmem_cache_alloc_trace+0x3d/0x330 [ 113.125844][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 113.132395][ T545] pids_css_alloc+0x3c/0x130 [ 113.132399][ T545] cgroup_apply_control_enable+0x432/0xf10 [ 113.132406][ T545] cgroup_subtree_control_write+0x6d3/0xd60 [ 113.137232][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 113.142053][ T545] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 113.142058][ T545] ? kfree+0xc2/0x560 [ 113.142064][ T545] ? __kasan_slab_free+0x129/0x170 [ 113.150101][ T423] Call Trace: [ 113.154570][ T545] cgroup_file_write+0x272/0x7c0 [ 113.159832][ T423] ? namespace_unlock+0x331/0x3e0 [ 113.167751][ T545] ? __kasan_check_write+0x14/0x20 [ 113.167755][ T545] ? cgroup_file_poll+0xd0/0xd0 [ 113.167766][ T545] ? __mutex_lock_slowpath+0x10/0x10 [ 113.172325][ T423] ? clone_private_mount+0x300/0x300 [ 113.178105][ T545] ? cgroup_file_poll+0xd0/0xd0 [ 113.178113][ T545] kernfs_fop_write_iter+0x2d5/0x450 [ 113.178122][ T545] new_sync_write+0x358/0x6e0 [ 113.183974][ T423] ? dput+0xac/0x8a0 [ 113.191905][ T545] ? new_sync_read+0x6e0/0x6e0 [ 113.191912][ T545] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 113.191919][ T545] ? rw_verify_area+0xc3/0x2b0 [ 113.197954][ T423] path_umount+0x6a3/0x1170 [ 113.201907][ T545] vfs_write+0x4f5/0x750 [ 113.206979][ T423] ? __detach_mounts+0x210/0x210 [ 113.210225][ T545] ksys_write+0x111/0x210 [ 113.210230][ T545] ? __ia32_sys_read+0xa0/0xa0 [ 113.210238][ T545] ? debug_smp_processor_id+0x17/0x20 [ 113.210249][ T545] ? fpregs_assert_state_consistent+0x49/0xb0 [ 113.215147][ T423] ? user_path_at_empty+0xa2/0xf0 [ 113.220132][ T545] __x64_sys_write+0x6e/0xb0 [ 113.220137][ T545] ? syscall_exit_to_user_mode+0x27/0x160 [ 113.220141][ T545] do_syscall_64+0x32/0x80 [ 113.220148][ T545] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.225223][ T423] __x64_sys_umount+0xfb/0x120 [ 113.230032][ T545] RIP: 0033:0x7fabe7ed7ce9 [ 113.230041][ T545] 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 [ 113.230046][ T545] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 [ 113.235294][ T423] ? path_umount+0x1170/0x1170 [ 113.240545][ T545] ORIG_RAX: 0000000000000001 [ 113.240549][ T545] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 113.240552][ T545] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 113.240554][ T545] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 113.240559][ T545] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 113.245384][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 113.250624][ T545] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000a [ 113.425334][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 113.430961][ T423] do_syscall_64+0x32/0x80 [ 113.435351][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.441246][ T423] RIP: 0033:0x7fabe7ed9097 [ 113.445632][ T423] 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 [ 113.465527][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 113.474130][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 113.482093][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 113.490049][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 113.498087][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 113.506131][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000001b [ 113.514099][ T423] ---[ end trace a21a7dc9bb3fec05 ]--- [ 113.538250][ T546] FAULT_INJECTION: forcing a failure. [ 113.538250][ T546] name failslab, interval 1, probability 0, space 0, times 0 [ 113.550985][ T546] CPU: 0 PID: 546 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 113.560905][ T546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.571278][ T546] Call Trace: [ 113.574714][ T546] dump_stack+0x84/0xad [ 113.578869][ T546] should_fail.cold+0x5/0x1f [ 113.583544][ T546] ? find_next_bit+0x14/0x20 [ 113.588263][ T546] ? cgroup_exit_cftypes+0x150/0x150 [ 113.593702][ T546] ? percpu_ref_init+0xd1/0x380 [ 113.598542][ T546] __should_failslab+0xd8/0x120 [ 113.603525][ T546] should_failslab+0x9/0x20 [ 113.608020][ T546] kmem_cache_alloc_trace+0x3d/0x330 [ 113.613289][ T546] ? cgroup_exit_cftypes+0x150/0x150 [ 113.618551][ T546] percpu_ref_init+0xd1/0x380 [ 113.623296][ T546] cgroup_apply_control_enable+0x486/0xf10 [ 113.629082][ T546] cgroup_subtree_control_write+0x6d3/0xd60 [ 113.635029][ T546] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 113.641078][ T546] ? kfree+0xc2/0x560 [ 113.645039][ T546] ? __kasan_slab_free+0x129/0x170 [ 113.650120][ T546] cgroup_file_write+0x272/0x7c0 [ 113.655051][ T546] ? __kasan_check_write+0x14/0x20 [ 113.660170][ T546] ? cgroup_file_poll+0xd0/0xd0 [ 113.664991][ T546] ? __mutex_lock_slowpath+0x10/0x10 [ 113.670337][ T546] ? cgroup_file_poll+0xd0/0xd0 [ 113.675157][ T546] kernfs_fop_write_iter+0x2d5/0x450 [ 113.680499][ T546] new_sync_write+0x358/0x6e0 [ 113.685146][ T546] ? new_sync_read+0x6e0/0x6e0 [ 113.689882][ T546] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 113.696626][ T546] ? rw_verify_area+0xc3/0x2b0 [ 113.701390][ T546] vfs_write+0x4f5/0x750 [ 113.705609][ T546] ksys_write+0x111/0x210 [ 113.709916][ T546] ? __ia32_sys_read+0xa0/0xa0 [ 113.714669][ T546] ? debug_smp_processor_id+0x17/0x20 [ 113.720207][ T546] ? fpregs_assert_state_consistent+0x49/0xb0 [ 113.726267][ T546] __x64_sys_write+0x6e/0xb0 [ 113.730846][ T546] ? syscall_exit_to_user_mode+0x27/0x160 [ 113.736539][ T546] do_syscall_64+0x32/0x80 [ 113.740928][ T546] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.746788][ T546] RIP: 0033:0x7fabe7ed7ce9 [ 113.751523][ T546] 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 [ 113.771118][ T546] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 113.779505][ T546] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 113.787454][ T546] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 113.795402][ T546] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 113.803357][ T546] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 113.811307][ T546] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000f [ 113.858096][ T548] FAULT_INJECTION: forcing a failure. [ 113.858096][ T548] name failslab, interval 1, probability 0, space 0, times 0 [ 113.870919][ T548] CPU: 0 PID: 548 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 113.880775][ T548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.890808][ T548] Call Trace: [ 113.894076][ T548] dump_stack+0x84/0xad [ 113.898207][ T548] should_fail.cold+0x5/0x1f [ 113.902870][ T548] __should_failslab+0xd8/0x120 [ 113.907690][ T548] should_failslab+0x9/0x20 [ 113.912160][ T548] __kmalloc_track_caller+0x5c/0x360 [ 113.917435][ T548] ? __kernfs_new_node+0xaa/0x680 [ 113.922429][ T548] kstrdup_const+0x45/0x70 [ 113.926810][ T548] __kernfs_new_node+0xaa/0x680 [ 113.931624][ T548] ? kernfs_dop_revalidate+0x370/0x370 [ 113.937046][ T548] ? kasan_save_stack+0x42/0x50 [ 113.941871][ T548] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 113.947656][ T548] ? kasan_kmalloc+0x9/0x10 [ 113.952127][ T548] ? snprintf+0x9e/0xd0 [ 113.956247][ T548] ? vsprintf+0x20/0x20 [ 113.960369][ T548] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.966419][ T548] ? do_syscall_64+0x32/0x80 [ 113.970977][ T548] kernfs_new_node+0x79/0x110 [ 113.975620][ T548] ? __kasan_check_write+0x14/0x20 [ 113.980695][ T548] __kernfs_create_file+0x24/0x270 [ 113.985775][ T548] cgroup_addrm_files+0x2e2/0x830 [ 113.990790][ T548] ? cgroup_show_path+0x3d0/0x3d0 [ 113.995798][ T548] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 114.001153][ T548] ? __radix_tree_replace+0xd0/0x250 [ 114.006422][ T548] ? idr_replace+0x138/0x150 [ 114.010997][ T548] ? idr_get_next+0x130/0x130 [ 114.015663][ T548] css_populate_dir+0x17a/0x400 [ 114.020483][ T548] cgroup_apply_control_enable+0x39c/0xf10 [ 114.026260][ T548] cgroup_subtree_control_write+0x6d3/0xd60 [ 114.032147][ T548] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 114.038476][ T548] ? kfree+0xc2/0x560 [ 114.042467][ T548] ? __kasan_slab_free+0x129/0x170 [ 114.047739][ T548] cgroup_file_write+0x272/0x7c0 [ 114.052673][ T548] ? __kasan_check_write+0x14/0x20 [ 114.057757][ T548] ? cgroup_file_poll+0xd0/0xd0 [ 114.062601][ T548] ? __mutex_lock_slowpath+0x10/0x10 [ 114.067913][ T548] ? cgroup_file_poll+0xd0/0xd0 [ 114.072954][ T548] kernfs_fop_write_iter+0x2d5/0x450 [ 114.078209][ T548] new_sync_write+0x358/0x6e0 [ 114.083113][ T548] ? new_sync_read+0x6e0/0x6e0 [ 114.090556][ T548] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 114.097334][ T548] ? rw_verify_area+0xc3/0x2b0 [ 114.102065][ T548] vfs_write+0x4f5/0x750 [ 114.106364][ T548] ksys_write+0x111/0x210 [ 114.110763][ T548] ? __ia32_sys_read+0xa0/0xa0 [ 114.115654][ T548] ? debug_smp_processor_id+0x17/0x20 [ 114.121000][ T548] ? fpregs_assert_state_consistent+0x49/0xb0 [ 114.127036][ T548] __x64_sys_write+0x6e/0xb0 [ 114.131615][ T548] ? syscall_exit_to_user_mode+0x27/0x160 [ 114.137313][ T548] do_syscall_64+0x32/0x80 [ 114.141701][ T548] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 114.147567][ T548] RIP: 0033:0x7fabe7ed7ce9 [ 114.151951][ T548] 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 [ 114.171531][ T548] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 114.179910][ T548] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 114.187850][ T548] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 114.195885][ T548] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 114.203823][ T548] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 114.211949][ T548] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000e [ 114.220056][ T548] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 114.257962][ T549] FAULT_INJECTION: forcing a failure. [ 114.257962][ T549] name failslab, interval 1, probability 0, space 0, times 0 [ 114.270820][ T549] CPU: 1 PID: 549 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 114.280683][ T549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.291933][ T549] Call Trace: [ 114.295262][ T549] dump_stack+0x84/0xad [ 114.299397][ T549] should_fail.cold+0x5/0x1f [ 114.303980][ T549] ? pids_css_alloc+0x3c/0x130 [ 114.308713][ T549] __should_failslab+0xd8/0x120 [ 114.313545][ T549] should_failslab+0x9/0x20 [ 114.318024][ T549] kmem_cache_alloc_trace+0x3d/0x330 [ 114.323279][ T549] pids_css_alloc+0x3c/0x130 [ 114.327840][ T549] cgroup_apply_control_enable+0x432/0xf10 [ 114.333617][ T549] cgroup_subtree_control_write+0x6d3/0xd60 [ 114.339495][ T549] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 114.345532][ T549] ? kfree+0xc2/0x560 [ 114.349480][ T549] ? __kasan_slab_free+0x129/0x170 [ 114.354586][ T549] cgroup_file_write+0x272/0x7c0 [ 114.359509][ T549] ? __kasan_check_write+0x14/0x20 [ 114.364591][ T549] ? cgroup_file_poll+0xd0/0xd0 [ 114.369413][ T549] ? __mutex_lock_slowpath+0x10/0x10 [ 114.374754][ T549] ? cgroup_file_poll+0xd0/0xd0 [ 114.379582][ T549] kernfs_fop_write_iter+0x2d5/0x450 [ 114.384847][ T549] new_sync_write+0x358/0x6e0 [ 114.389504][ T549] ? new_sync_read+0x6e0/0x6e0 [ 114.394239][ T549] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 114.400965][ T549] ? rw_verify_area+0xc3/0x2b0 [ 114.405694][ T549] vfs_write+0x4f5/0x750 [ 114.409904][ T549] ksys_write+0x111/0x210 [ 114.414198][ T549] ? __ia32_sys_read+0xa0/0xa0 [ 114.418932][ T549] ? debug_smp_processor_id+0x17/0x20 [ 114.424299][ T549] ? fpregs_assert_state_consistent+0x49/0xb0 [ 114.430373][ T549] __x64_sys_write+0x6e/0xb0 [ 114.434939][ T549] ? syscall_exit_to_user_mode+0x27/0x160 [ 114.440633][ T549] do_syscall_64+0x32/0x80 [ 114.445028][ T549] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 114.450888][ T549] RIP: 0033:0x7fabe7ed7ce9 [ 114.455369][ T549] 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 [ 114.475034][ T549] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 114.483415][ T549] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 114.491539][ T549] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 114.499613][ T549] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 114.507661][ T549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 114.515603][ T549] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000013 [ 114.548490][ T547] FAULT_INJECTION: forcing a failure. [ 114.548490][ T547] name failslab, interval 1, probability 0, space 0, times 0 [ 114.561223][ T547] CPU: 0 PID: 547 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 114.571095][ T547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.581131][ T547] Call Trace: [ 114.584417][ T547] dump_stack+0x84/0xad [ 114.588545][ T547] should_fail.cold+0x5/0x1f [ 114.593112][ T547] ? find_next_bit+0x14/0x20 [ 114.597670][ T547] ? cgroup_exit_cftypes+0x150/0x150 [ 114.602928][ T547] ? percpu_ref_init+0xd1/0x380 [ 114.607759][ T547] __should_failslab+0xd8/0x120 [ 114.612775][ T547] should_failslab+0x9/0x20 [ 114.617258][ T547] kmem_cache_alloc_trace+0x3d/0x330 [ 114.622520][ T547] ? cgroup_exit_cftypes+0x150/0x150 [ 114.627924][ T547] percpu_ref_init+0xd1/0x380 [ 114.632611][ T547] cgroup_apply_control_enable+0x486/0xf10 [ 114.638398][ T547] cgroup_subtree_control_write+0x6d3/0xd60 [ 114.644273][ T547] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 114.650321][ T547] ? kfree+0xc2/0x560 [ 114.654281][ T547] ? __kasan_slab_free+0x129/0x170 [ 114.659382][ T547] cgroup_file_write+0x272/0x7c0 [ 114.664304][ T547] ? __kasan_check_write+0x14/0x20 [ 114.669477][ T547] ? cgroup_file_poll+0xd0/0xd0 [ 114.674297][ T547] ? __mutex_lock_slowpath+0x10/0x10 [ 114.679564][ T547] ? cgroup_file_poll+0xd0/0xd0 [ 114.684415][ T547] kernfs_fop_write_iter+0x2d5/0x450 [ 114.689673][ T547] new_sync_write+0x358/0x6e0 [ 114.694324][ T547] ? new_sync_read+0x6e0/0x6e0 [ 114.699069][ T547] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 114.705800][ T547] ? rw_verify_area+0xc3/0x2b0 [ 114.710621][ T547] vfs_write+0x4f5/0x750 [ 114.715089][ T547] ksys_write+0x111/0x210 [ 114.719386][ T547] ? __ia32_sys_read+0xa0/0xa0 [ 114.724136][ T547] ? debug_smp_processor_id+0x17/0x20 [ 114.729477][ T547] ? fpregs_assert_state_consistent+0x49/0xb0 [ 114.735524][ T547] __x64_sys_write+0x6e/0xb0 [ 114.740108][ T547] ? syscall_exit_to_user_mode+0x27/0x160 [ 114.745797][ T547] do_syscall_64+0x32/0x80 [ 114.750193][ T547] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 114.756047][ T547] RIP: 0033:0x7fabe7ed7ce9 [ 114.760515][ T547] 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 [ 114.780097][ T547] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 114.788475][ T547] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 114.796415][ T547] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 114.804443][ T547] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 114.812552][ T547] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 114.820506][ T547] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000e [ 114.831016][ T421] ------------[ cut here ]------------ [ 114.836486][ T421] WARNING: CPU: 1 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 114.846531][ T421] Modules linked in: [ 114.850503][ T421] CPU: 1 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 114.860381][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.870443][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 114.876042][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 114.895735][ T421] RSP: 0018:ffffc90000757cf0 EFLAGS: 00010286 [ 114.901794][ T421] RAX: 0000000000000000 RBX: 1ffff920000eafa5 RCX: 0000000000000002 [ 114.909755][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 114.917810][ T421] RBP: ffffc90000757db0 R08: 0000000000000000 R09: 0000000000000008 [ 114.925760][ T421] R10: fffff520000eaf91 R11: 0000000000000000 R12: ffffc90000757d48 [ 114.933737][ T421] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810e4b5080 [ 114.941714][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 114.950728][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.957291][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506a0 [ 114.965524][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.973674][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.981636][ T421] Call Trace: [ 114.984991][ T421] ? namespace_unlock+0x331/0x3e0 [ 114.990007][ T421] ? clone_private_mount+0x300/0x300 [ 114.995271][ T421] ? dput+0xac/0x8a0 [ 114.999264][ T421] path_umount+0x6a3/0x1170 [ 115.003833][ T421] ? __detach_mounts+0x210/0x210 [ 115.008779][ T421] ? user_path_at_empty+0xa2/0xf0 [ 115.013788][ T421] __x64_sys_umount+0xfb/0x120 [ 115.018547][ T421] ? path_umount+0x1170/0x1170 [ 115.023374][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 115.029443][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 115.035055][ T421] do_syscall_64+0x32/0x80 [ 115.039465][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 115.045354][ T421] RIP: 0033:0x7fabe7ed9097 [ 115.049775][ T421] 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 [ 115.069375][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 115.077781][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 115.085731][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 115.093697][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 115.101660][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 115.109634][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000f [ 115.117614][ T421] ---[ end trace a21a7dc9bb3fec06 ]--- [ 115.138309][ T550] FAULT_INJECTION: forcing a failure. [ 115.138309][ T550] name failslab, interval 1, probability 0, space 0, times 0 [ 115.151119][ T550] CPU: 1 PID: 550 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 115.161011][ T550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.171126][ T550] Call Trace: [ 115.174390][ T550] dump_stack+0x84/0xad [ 115.178522][ T550] should_fail.cold+0x5/0x1f [ 115.183088][ T550] ? find_next_bit+0x14/0x20 [ 115.187646][ T550] ? cgroup_exit_cftypes+0x150/0x150 [ 115.193071][ T550] ? percpu_ref_init+0xd1/0x380 [ 115.197897][ T550] __should_failslab+0xd8/0x120 [ 115.202717][ T550] should_failslab+0x9/0x20 [ 115.207200][ T550] kmem_cache_alloc_trace+0x3d/0x330 [ 115.212733][ T550] ? cgroup_exit_cftypes+0x150/0x150 [ 115.218000][ T550] percpu_ref_init+0xd1/0x380 [ 115.222655][ T550] cgroup_apply_control_enable+0x486/0xf10 [ 115.228460][ T550] cgroup_subtree_control_write+0x6d3/0xd60 [ 115.234870][ T550] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 115.240927][ T550] ? kfree+0xc2/0x560 [ 115.244975][ T550] ? __kasan_check_write+0x14/0x20 [ 115.250162][ T550] cgroup_file_write+0x272/0x7c0 [ 115.255096][ T550] ? __kasan_check_write+0x14/0x20 [ 115.260179][ T550] ? cgroup_file_poll+0xd0/0xd0 [ 115.265267][ T550] ? __mutex_lock_slowpath+0x10/0x10 [ 115.270802][ T550] ? cgroup_file_poll+0xd0/0xd0 [ 115.275800][ T550] kernfs_fop_write_iter+0x2d5/0x450 [ 115.281072][ T550] new_sync_write+0x358/0x6e0 [ 115.285729][ T550] ? new_sync_read+0x6e0/0x6e0 [ 115.290480][ T550] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 115.297217][ T550] ? rw_verify_area+0xc3/0x2b0 [ 115.301949][ T550] vfs_write+0x4f5/0x750 [ 115.306164][ T550] ksys_write+0x111/0x210 [ 115.310473][ T550] ? __ia32_sys_read+0xa0/0xa0 [ 115.315395][ T550] ? debug_smp_processor_id+0x17/0x20 [ 115.320753][ T550] ? fpregs_assert_state_consistent+0x49/0xb0 [ 115.326808][ T550] __x64_sys_write+0x6e/0xb0 [ 115.331372][ T550] ? syscall_exit_to_user_mode+0x27/0x160 [ 115.337060][ T550] do_syscall_64+0x32/0x80 [ 115.341448][ T550] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 115.347402][ T550] RIP: 0033:0x7fabe7ed7ce9 [ 115.351897][ T550] 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 [ 115.371483][ T550] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 115.379871][ T550] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 115.387973][ T550] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 115.396014][ T550] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 115.403992][ T550] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 115.412172][ T550] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000001b [ 115.422096][ T423] ------------[ cut here ]------------ [ 115.427586][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 115.436992][ T423] Modules linked in: [ 115.440919][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 115.450809][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.460904][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 115.466510][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 115.486412][ T423] RSP: 0018:ffffc900007a7c28 EFLAGS: 00010282 [ 115.492491][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4f8c RCX: 0000000000000002 [ 115.500480][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 115.508631][ T423] RBP: ffffc900007a7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 115.516598][ T423] R10: fffff520000f4f78 R11: ffff8881f7155bc0 R12: ffffc900007a7c80 [ 115.524676][ T423] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810e8eb800 [ 115.532643][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 115.541577][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 115.548156][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 115.556277][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 115.564243][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 115.572222][ T423] Call Trace: [ 115.575612][ T423] ? clone_private_mount+0x300/0x300 [ 115.580907][ T423] ? change_mnt_propagation+0x5df/0xd40 [ 115.586441][ T423] namespace_unlock+0x331/0x3e0 [ 115.591417][ T423] ? kern_unmount+0xb0/0xb0 [ 115.596127][ T423] ? unhash_mnt+0x3b0/0x3b0 [ 115.600640][ T423] path_umount+0x665/0x1170 [ 115.605122][ T423] ? __detach_mounts+0x210/0x210 [ 115.610054][ T423] ? user_path_at_empty+0xa2/0xf0 [ 115.615058][ T423] __x64_sys_umount+0xfb/0x120 [ 115.619822][ T423] ? path_umount+0x1170/0x1170 [ 115.624562][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 115.630626][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 115.636244][ T423] do_syscall_64+0x32/0x80 [ 115.640673][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 115.646566][ T423] RIP: 0033:0x7fabe7ed9097 [ 115.650987][ T423] 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 [ 115.670620][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 115.679048][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 115.687000][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 115.694968][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 115.702942][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 115.710922][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000001c [ 115.718893][ T423] ---[ end trace a21a7dc9bb3fec07 ]--- [ 115.724380][ T423] ------------[ cut here ]------------ [ 115.729870][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 115.738782][ T423] Modules linked in: [ 115.742646][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 115.752541][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.762876][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 115.768499][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 115.788110][ T423] RSP: 0018:ffffc900007a7cf0 EFLAGS: 00010286 [ 115.794147][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4fa5 RCX: 0000000000000002 [ 115.802110][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 115.810075][ T423] RBP: ffffc900007a7db0 R08: 0000000000000000 R09: 0000000000000008 [ 115.818035][ T423] R10: fffff520000f4f91 R11: ffff8881f7155bc0 R12: ffffc900007a7d48 [ 115.825983][ T423] R13: 00000000fffffffc R14: dffffc0000000000 R15: ffff88810e8eb800 [ 115.833946][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 115.842856][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 115.849445][ T423] CR2: 00007ffc76d2fff8 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 115.857393][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 115.865355][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 115.873312][ T423] Call Trace: [ 115.876573][ T423] ? namespace_unlock+0x331/0x3e0 [ 115.881595][ T423] ? clone_private_mount+0x300/0x300 [ 115.886848][ T423] ? dput+0xac/0x8a0 [ 115.890721][ T423] path_umount+0x6a3/0x1170 [ 115.895214][ T423] ? __detach_mounts+0x210/0x210 [ 115.900358][ T423] ? user_path_at_empty+0xa2/0xf0 [ 115.905355][ T423] __x64_sys_umount+0xfb/0x120 [ 115.910110][ T423] ? path_umount+0x1170/0x1170 [ 115.914841][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 115.920882][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 115.926481][ T423] do_syscall_64+0x32/0x80 [ 115.930870][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 115.936723][ T423] RIP: 0033:0x7fabe7ed9097 [ 115.941112][ T423] 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 [ 115.960698][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 115.969099][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 115.977034][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 115.984978][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 115.992924][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 116.000869][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000001c [ 116.008821][ T423] ---[ end trace a21a7dc9bb3fec08 ]--- [ 116.028046][ T551] FAULT_INJECTION: forcing a failure. [ 116.028046][ T551] name failslab, interval 1, probability 0, space 0, times 0 [ 116.040853][ T551] CPU: 0 PID: 551 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 116.050831][ T551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.060859][ T551] Call Trace: [ 116.064123][ T551] dump_stack+0x84/0xad [ 116.068250][ T551] should_fail.cold+0x5/0x1f [ 116.072805][ T551] ? find_next_bit+0x14/0x20 [ 116.077366][ T551] ? cgroup_exit_cftypes+0x150/0x150 [ 116.082616][ T551] ? percpu_ref_init+0xd1/0x380 [ 116.087436][ T551] __should_failslab+0xd8/0x120 [ 116.092259][ T551] should_failslab+0x9/0x20 [ 116.096727][ T551] kmem_cache_alloc_trace+0x3d/0x330 [ 116.101978][ T551] ? cgroup_exit_cftypes+0x150/0x150 [ 116.107225][ T551] percpu_ref_init+0xd1/0x380 [ 116.111874][ T551] cgroup_apply_control_enable+0x486/0xf10 [ 116.117645][ T551] cgroup_subtree_control_write+0x6d3/0xd60 [ 116.123514][ T551] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 116.129546][ T551] ? kfree+0xc2/0x560 [ 116.133503][ T551] ? __kasan_slab_free+0x129/0x170 [ 116.138595][ T551] cgroup_file_write+0x272/0x7c0 [ 116.143497][ T551] ? __kasan_check_write+0x14/0x20 [ 116.148570][ T551] ? cgroup_file_poll+0xd0/0xd0 [ 116.153392][ T551] ? __mutex_lock_slowpath+0x10/0x10 [ 116.158643][ T551] ? cgroup_file_poll+0xd0/0xd0 [ 116.163459][ T551] kernfs_fop_write_iter+0x2d5/0x450 [ 116.168796][ T551] new_sync_write+0x358/0x6e0 [ 116.173436][ T551] ? new_sync_read+0x6e0/0x6e0 [ 116.178166][ T551] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 116.184889][ T551] ? rw_verify_area+0xc3/0x2b0 [ 116.189614][ T551] vfs_write+0x4f5/0x750 [ 116.193822][ T551] ksys_write+0x111/0x210 [ 116.198120][ T551] ? __ia32_sys_read+0xa0/0xa0 [ 116.202860][ T551] ? debug_smp_processor_id+0x17/0x20 [ 116.208200][ T551] ? fpregs_assert_state_consistent+0x49/0xb0 [ 116.214240][ T551] __x64_sys_write+0x6e/0xb0 [ 116.218809][ T551] ? syscall_exit_to_user_mode+0x27/0x160 [ 116.224517][ T551] do_syscall_64+0x32/0x80 [ 116.228930][ T551] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.234789][ T551] RIP: 0033:0x7fabe7ed7ce9 [ 116.239194][ T551] 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 [ 116.258861][ T551] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 116.267245][ T551] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 116.275278][ T551] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 116.283310][ T551] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 116.291261][ T551] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 116.299207][ T551] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000b [ 116.338291][ T557] FAULT_INJECTION: forcing a failure. [ 116.338291][ T557] name failslab, interval 1, probability 0, space 0, times 0 [ 116.354872][ T557] CPU: 1 PID: 557 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 116.364928][ T557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.375660][ T557] Call Trace: [ 116.378929][ T557] dump_stack+0x84/0xad [ 116.383062][ T557] should_fail.cold+0x5/0x1f [ 116.387640][ T557] __should_failslab+0xd8/0x120 [ 116.392577][ T557] should_failslab+0x9/0x20 [ 116.397067][ T557] __kmalloc_track_caller+0x5c/0x360 [ 116.402334][ T557] ? __kernfs_new_node+0xaa/0x680 [ 116.407351][ T557] kstrdup_const+0x45/0x70 [ 116.411758][ T557] __kernfs_new_node+0xaa/0x680 [ 116.416589][ T557] ? kernfs_dop_revalidate+0x370/0x370 [ 116.422029][ T557] ? kasan_save_stack+0x42/0x50 [ 116.426863][ T557] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 116.432641][ T557] ? kasan_kmalloc+0x9/0x10 [ 116.437232][ T557] ? snprintf+0x9e/0xd0 [ 116.441374][ T557] ? vsprintf+0x20/0x20 [ 116.445514][ T557] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.451576][ T557] ? do_syscall_64+0x32/0x80 [ 116.456141][ T557] kernfs_new_node+0x79/0x110 [ 116.461669][ T557] ? __kasan_check_write+0x14/0x20 [ 116.466753][ T557] __kernfs_create_file+0x24/0x270 [ 116.471850][ T557] cgroup_addrm_files+0x2e2/0x830 [ 116.476855][ T557] ? cgroup_show_path+0x3d0/0x3d0 [ 116.481857][ T557] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 116.487232][ T557] ? __radix_tree_replace+0xd0/0x250 [ 116.492508][ T557] ? idr_replace+0x138/0x150 [ 116.497070][ T557] ? idr_get_next+0x130/0x130 [ 116.501721][ T557] css_populate_dir+0x17a/0x400 [ 116.506541][ T557] cgroup_apply_control_enable+0x39c/0xf10 [ 116.512316][ T557] cgroup_subtree_control_write+0x6d3/0xd60 [ 116.518534][ T557] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 116.524567][ T557] ? kfree+0xc2/0x560 [ 116.528527][ T557] ? __kasan_slab_free+0x129/0x170 [ 116.533657][ T557] cgroup_file_write+0x272/0x7c0 [ 116.538667][ T557] ? __kasan_check_write+0x14/0x20 [ 116.543753][ T557] ? cgroup_file_poll+0xd0/0xd0 [ 116.548692][ T557] ? __mutex_lock_slowpath+0x10/0x10 [ 116.554048][ T557] ? cgroup_file_poll+0xd0/0xd0 [ 116.558881][ T557] kernfs_fop_write_iter+0x2d5/0x450 [ 116.564323][ T557] new_sync_write+0x358/0x6e0 [ 116.568990][ T557] ? new_sync_read+0x6e0/0x6e0 [ 116.573729][ T557] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 116.580564][ T557] ? rw_verify_area+0xc3/0x2b0 [ 116.585295][ T557] vfs_write+0x4f5/0x750 [ 116.589952][ T557] ksys_write+0x111/0x210 [ 116.594356][ T557] ? __ia32_sys_read+0xa0/0xa0 [ 116.599283][ T557] ? debug_smp_processor_id+0x17/0x20 [ 116.604645][ T557] ? fpregs_assert_state_consistent+0x49/0xb0 [ 116.610692][ T557] __x64_sys_write+0x6e/0xb0 [ 116.615260][ T557] ? syscall_exit_to_user_mode+0x27/0x160 [ 116.620951][ T557] do_syscall_64+0x32/0x80 [ 116.625343][ T557] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.631213][ T557] RIP: 0033:0x7fabe7ed7ce9 [ 116.635612][ T557] 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 [ 116.655627][ T557] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 116.664013][ T557] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 116.671973][ T557] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 116.679920][ T557] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 116.687872][ T557] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 116.695901][ T557] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000c [ 116.703955][ T557] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 116.712805][ T424] ------------[ cut here ]------------ [ 116.718350][ T424] WARNING: CPU: 0 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 116.727256][ T424] Modules linked in: [ 116.731177][ T424] CPU: 0 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 116.742307][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.752744][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 116.758386][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 116.778093][ T424] RSP: 0018:ffffc900007b7c28 EFLAGS: 00010286 [ 116.784152][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6f8c RCX: 0000000000000002 [ 116.792564][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 116.800533][ T424] RBP: ffffc900007b7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 116.808497][ T424] R10: fffff520000f6f78 R11: ffff8881f7055bc0 R12: ffffc900007b7c80 [ 116.816441][ T424] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810e8ebb00 [ 116.824436][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 116.833527][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 116.840162][ T424] CR2: 00007ffc76d2fff8 CR3: 0000000116c61000 CR4: 00000000003506b0 [ 116.848138][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 116.856094][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 116.864059][ T424] Call Trace: [ 116.867340][ T424] ? clone_private_mount+0x300/0x300 [ 116.872628][ T424] ? change_mnt_propagation+0x5df/0xd40 [ 116.878172][ T424] namespace_unlock+0x331/0x3e0 [ 116.883001][ T424] ? kern_unmount+0xb0/0xb0 [ 116.887469][ T424] ? unhash_mnt+0x3b0/0x3b0 [ 116.891954][ T424] path_umount+0x665/0x1170 [ 116.896424][ T424] ? __detach_mounts+0x210/0x210 [ 116.901350][ T424] ? user_path_at_empty+0xa2/0xf0 [ 116.906341][ T424] __x64_sys_umount+0xfb/0x120 [ 116.911086][ T424] ? path_umount+0x1170/0x1170 [ 116.915936][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 116.922177][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 116.927796][ T424] do_syscall_64+0x32/0x80 [ 116.932195][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.938068][ T424] RIP: 0033:0x7fabe7ed9097 [ 116.943414][ T424] 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 [ 116.963018][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 116.971510][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 116.979463][ T424] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 116.987444][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 117.000608][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 117.008570][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000d [ 117.016792][ T424] ---[ end trace a21a7dc9bb3fec09 ]--- [ 117.022326][ T424] ------------[ cut here ]------------ [ 117.027850][ T424] WARNING: CPU: 1 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 117.036765][ T424] Modules linked in: [ 117.040664][ T424] CPU: 1 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 117.050551][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.060719][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 117.067552][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 117.087986][ T424] RSP: 0018:ffffc900007b7cf0 EFLAGS: 00010282 [ 117.094026][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6fa5 RCX: 0000000000000002 [ 117.101985][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 117.110020][ T424] RBP: ffffc900007b7db0 R08: 0000000000000000 R09: 0000000000000008 [ 117.118119][ T424] R10: fffff520000f6f91 R11: ffff8881f7055bc0 R12: ffffc900007b7d48 [ 117.127655][ T424] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810e8ebb00 [ 117.135650][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 117.144575][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 117.151164][ T424] CR2: 00007fabe7f4e350 CR3: 0000000116c61000 CR4: 00000000003506a0 [ 117.159732][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 117.168061][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 117.176003][ T424] Call Trace: [ 117.179313][ T424] ? namespace_unlock+0x331/0x3e0 [ 117.184319][ T424] ? clone_private_mount+0x300/0x300 [ 117.189594][ T424] ? dput+0xac/0x8a0 [ 117.193454][ T424] path_umount+0x6a3/0x1170 [ 117.197936][ T424] ? __detach_mounts+0x210/0x210 [ 117.202942][ T424] ? user_path_at_empty+0xa2/0xf0 [ 117.208110][ T424] __x64_sys_umount+0xfb/0x120 [ 117.212851][ T424] ? path_umount+0x1170/0x1170 [ 117.217588][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 117.223727][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 117.230834][ T424] do_syscall_64+0x32/0x80 [ 117.235220][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.241182][ T424] RIP: 0033:0x7fabe7ed9097 [ 117.245568][ T424] 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 [ 117.265426][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 117.273816][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 117.281761][ T424] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 117.289709][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 117.297649][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 117.305792][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000d [ 117.313874][ T424] ---[ end trace a21a7dc9bb3fec0a ]--- [ 117.322442][ T556] FAULT_INJECTION: forcing a failure. [ 117.322442][ T556] name failslab, interval 1, probability 0, space 0, times 0 [ 117.335535][ T556] CPU: 1 PID: 556 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 117.345692][ T556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.355758][ T556] Call Trace: [ 117.359040][ T556] dump_stack+0x84/0xad [ 117.363170][ T556] should_fail.cold+0x5/0x1f [ 117.367771][ T556] ? find_next_bit+0x14/0x20 [ 117.372348][ T556] ? cgroup_exit_cftypes+0x150/0x150 [ 117.377645][ T556] ? percpu_ref_init+0xd1/0x380 [ 117.382473][ T556] __should_failslab+0xd8/0x120 [ 117.387301][ T556] should_failslab+0x9/0x20 [ 117.391885][ T556] kmem_cache_alloc_trace+0x3d/0x330 [ 117.397233][ T556] ? cgroup_exit_cftypes+0x150/0x150 [ 117.402516][ T556] percpu_ref_init+0xd1/0x380 [ 117.407272][ T556] cgroup_apply_control_enable+0x486/0xf10 [ 117.413064][ T556] cgroup_subtree_control_write+0x6d3/0xd60 [ 117.418957][ T556] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 117.425123][ T556] ? kfree+0xc2/0x560 [ 117.429189][ T556] ? __kasan_slab_free+0x129/0x170 [ 117.434520][ T556] cgroup_file_write+0x272/0x7c0 [ 117.439435][ T556] ? __kasan_check_write+0x14/0x20 [ 117.444636][ T556] ? cgroup_file_poll+0xd0/0xd0 [ 117.449546][ T556] ? __mutex_lock_slowpath+0x10/0x10 [ 117.454889][ T556] ? cgroup_file_poll+0xd0/0xd0 [ 117.459805][ T556] kernfs_fop_write_iter+0x2d5/0x450 [ 117.465092][ T556] new_sync_write+0x358/0x6e0 [ 117.469762][ T556] ? new_sync_read+0x6e0/0x6e0 [ 117.474500][ T556] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 117.481331][ T556] ? rw_verify_area+0xc3/0x2b0 [ 117.486094][ T556] vfs_write+0x4f5/0x750 [ 117.490589][ T556] ksys_write+0x111/0x210 [ 117.494895][ T556] ? __ia32_sys_read+0xa0/0xa0 [ 117.499827][ T556] ? debug_smp_processor_id+0x17/0x20 [ 117.505350][ T556] ? fpregs_assert_state_consistent+0x49/0xb0 [ 117.511413][ T556] __x64_sys_write+0x6e/0xb0 [ 117.516245][ T556] ? syscall_exit_to_user_mode+0x27/0x160 [ 117.522126][ T556] do_syscall_64+0x32/0x80 [ 117.526532][ T556] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.532598][ T556] RIP: 0033:0x7fabe7ed7ce9 [ 117.537607][ T556] 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 [ 117.557190][ T556] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 117.565580][ T556] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 117.573708][ T556] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 117.581683][ T556] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 117.589906][ T556] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 117.597967][ T556] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000001c [ 117.618135][ T555] FAULT_INJECTION: forcing a failure. [ 117.618135][ T555] name failslab, interval 1, probability 0, space 0, times 0 [ 117.631302][ T555] CPU: 1 PID: 555 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 117.641607][ T555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.651672][ T555] Call Trace: [ 117.654945][ T555] dump_stack+0x84/0xad [ 117.659078][ T555] should_fail.cold+0x5/0x1f [ 117.663759][ T555] ? __kernfs_new_node+0xe5/0x680 [ 117.668775][ T555] __should_failslab+0xd8/0x120 [ 117.673614][ T555] should_failslab+0x9/0x20 [ 117.678092][ T555] kmem_cache_alloc+0x2d/0x4e0 [ 117.682833][ T555] __kernfs_new_node+0xe5/0x680 [ 117.687767][ T555] ? kernfs_dop_revalidate+0x370/0x370 [ 117.693216][ T555] ? kasan_save_stack+0x42/0x50 [ 117.698056][ T555] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 117.703848][ T555] ? kasan_kmalloc+0x9/0x10 [ 117.708335][ T555] ? snprintf+0x9e/0xd0 [ 117.712475][ T555] ? vsprintf+0x20/0x20 [ 117.716776][ T555] kernfs_new_node+0x79/0x110 [ 117.721427][ T555] __kernfs_create_file+0x24/0x270 [ 117.726511][ T555] cgroup_addrm_files+0x2e2/0x830 [ 117.731520][ T555] ? cgroup_show_path+0x3d0/0x3d0 [ 117.736528][ T555] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 117.741875][ T555] ? __radix_tree_replace+0xd0/0x250 [ 117.747152][ T555] ? idr_replace+0x138/0x150 [ 117.751732][ T555] ? idr_get_next+0x130/0x130 [ 117.756504][ T555] css_populate_dir+0x17a/0x400 [ 117.761355][ T555] cgroup_apply_control_enable+0x39c/0xf10 [ 117.767133][ T555] cgroup_subtree_control_write+0x6d3/0xd60 [ 117.773008][ T555] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 117.779046][ T555] ? kfree+0xc2/0x560 [ 117.782995][ T555] ? __kasan_slab_free+0x129/0x170 [ 117.788108][ T555] cgroup_file_write+0x272/0x7c0 [ 117.793200][ T555] ? __kasan_check_write+0x14/0x20 [ 117.798475][ T555] ? cgroup_file_poll+0xd0/0xd0 [ 117.803383][ T555] ? __mutex_lock_slowpath+0x10/0x10 [ 117.808652][ T555] ? cgroup_file_poll+0xd0/0xd0 [ 117.813484][ T555] kernfs_fop_write_iter+0x2d5/0x450 [ 117.818864][ T555] new_sync_write+0x358/0x6e0 [ 117.823542][ T555] ? new_sync_read+0x6e0/0x6e0 [ 117.828294][ T555] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 117.835141][ T555] ? rw_verify_area+0xc3/0x2b0 [ 117.840063][ T555] vfs_write+0x4f5/0x750 [ 117.844295][ T555] ksys_write+0x111/0x210 [ 117.848591][ T555] ? __ia32_sys_read+0xa0/0xa0 [ 117.853355][ T555] ? debug_smp_processor_id+0x17/0x20 [ 117.858720][ T555] ? fpregs_assert_state_consistent+0x49/0xb0 [ 117.865041][ T555] __x64_sys_write+0x6e/0xb0 [ 117.869792][ T555] ? syscall_exit_to_user_mode+0x27/0x160 [ 117.875576][ T555] do_syscall_64+0x32/0x80 [ 117.880054][ T555] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.886003][ T555] RIP: 0033:0x7fabe7ed7ce9 [ 117.890395][ T555] 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 [ 117.910434][ T555] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 117.918997][ T555] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 117.926937][ T555] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 117.935480][ T555] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 117.943438][ T555] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 117.951561][ T555] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000f [ 117.959726][ T555] cgroup: cgroup_addrm_files: failed to add events, err=-12 [ 117.998336][ T560] FAULT_INJECTION: forcing a failure. [ 117.998336][ T560] name failslab, interval 1, probability 0, space 0, times 0 [ 118.011044][ T560] CPU: 1 PID: 560 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 118.020932][ T560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.030963][ T560] Call Trace: [ 118.034350][ T560] dump_stack+0x84/0xad [ 118.038493][ T560] should_fail.cold+0x5/0x1f [ 118.043236][ T560] __should_failslab+0xd8/0x120 [ 118.048056][ T560] should_failslab+0x9/0x20 [ 118.052529][ T560] __kmalloc_track_caller+0x5c/0x360 [ 118.057787][ T560] ? __kernfs_new_node+0xaa/0x680 [ 118.062780][ T560] kstrdup_const+0x45/0x70 [ 118.067177][ T560] __kernfs_new_node+0xaa/0x680 [ 118.071997][ T560] ? kernfs_dop_revalidate+0x370/0x370 [ 118.077540][ T560] ? kasan_save_stack+0x42/0x50 [ 118.082538][ T560] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 118.088310][ T560] ? kasan_kmalloc+0x9/0x10 [ 118.092784][ T560] ? snprintf+0x9e/0xd0 [ 118.096914][ T560] ? vsprintf+0x20/0x20 [ 118.101138][ T560] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.107263][ T560] ? do_syscall_64+0x32/0x80 [ 118.111819][ T560] kernfs_new_node+0x79/0x110 [ 118.116483][ T560] ? __kasan_check_write+0x14/0x20 [ 118.121565][ T560] __kernfs_create_file+0x24/0x270 [ 118.126642][ T560] cgroup_addrm_files+0x2e2/0x830 [ 118.131635][ T560] ? cgroup_show_path+0x3d0/0x3d0 [ 118.136626][ T560] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 118.141964][ T560] ? __radix_tree_replace+0xd0/0x250 [ 118.147226][ T560] ? idr_replace+0x138/0x150 [ 118.151787][ T560] ? idr_get_next+0x130/0x130 [ 118.156440][ T560] css_populate_dir+0x17a/0x400 [ 118.161274][ T560] cgroup_apply_control_enable+0x39c/0xf10 [ 118.167050][ T560] cgroup_subtree_control_write+0x6d3/0xd60 [ 118.172908][ T560] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 118.178970][ T560] ? kfree+0xc2/0x560 [ 118.182931][ T560] ? __kasan_slab_free+0x129/0x170 [ 118.188034][ T560] cgroup_file_write+0x272/0x7c0 [ 118.192944][ T560] ? __kasan_check_write+0x14/0x20 [ 118.198040][ T560] ? cgroup_file_poll+0xd0/0xd0 [ 118.202877][ T560] ? __mutex_lock_slowpath+0x10/0x10 [ 118.208137][ T560] ? cgroup_file_poll+0xd0/0xd0 [ 118.212964][ T560] kernfs_fop_write_iter+0x2d5/0x450 [ 118.218219][ T560] new_sync_write+0x358/0x6e0 [ 118.222969][ T560] ? new_sync_read+0x6e0/0x6e0 [ 118.227704][ T560] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 118.234517][ T560] ? rw_verify_area+0xc3/0x2b0 [ 118.239245][ T560] vfs_write+0x4f5/0x750 [ 118.243454][ T560] ksys_write+0x111/0x210 [ 118.247791][ T560] ? __ia32_sys_read+0xa0/0xa0 [ 118.252524][ T560] ? debug_smp_processor_id+0x17/0x20 [ 118.257875][ T560] ? fpregs_assert_state_consistent+0x49/0xb0 [ 118.263909][ T560] __x64_sys_write+0x6e/0xb0 [ 118.268472][ T560] ? syscall_exit_to_user_mode+0x27/0x160 [ 118.274328][ T560] do_syscall_64+0x32/0x80 [ 118.278716][ T560] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.284575][ T560] RIP: 0033:0x7fabe7ed7ce9 [ 118.288956][ T560] 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 [ 118.308541][ T560] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 118.316917][ T560] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 118.324948][ T560] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 118.332979][ T560] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 118.341007][ T560] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 118.349142][ T560] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000010 [ 118.357878][ T560] cgroup: cgroup_addrm_files: failed to add max, err=-12 [ 118.398383][ T561] FAULT_INJECTION: forcing a failure. [ 118.398383][ T561] name failslab, interval 1, probability 0, space 0, times 0 [ 118.411080][ T561] CPU: 1 PID: 561 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 118.420961][ T561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.430999][ T561] Call Trace: [ 118.434269][ T561] dump_stack+0x84/0xad [ 118.438591][ T561] should_fail.cold+0x5/0x1f [ 118.443202][ T561] ? find_next_bit+0x14/0x20 [ 118.447856][ T561] ? cgroup_exit_cftypes+0x150/0x150 [ 118.453114][ T561] ? percpu_ref_init+0xd1/0x380 [ 118.457936][ T561] __should_failslab+0xd8/0x120 [ 118.462944][ T561] should_failslab+0x9/0x20 [ 118.467688][ T561] kmem_cache_alloc_trace+0x3d/0x330 [ 118.472945][ T561] ? cgroup_exit_cftypes+0x150/0x150 [ 118.478212][ T561] percpu_ref_init+0xd1/0x380 [ 118.482860][ T561] cgroup_apply_control_enable+0x486/0xf10 [ 118.488648][ T561] cgroup_subtree_control_write+0x6d3/0xd60 [ 118.494510][ T561] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 118.500545][ T561] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 118.506337][ T561] cgroup_file_write+0x272/0x7c0 [ 118.511243][ T561] ? __kasan_check_write+0x14/0x20 [ 118.516333][ T561] ? cgroup_file_poll+0xd0/0xd0 [ 118.521190][ T561] ? __mutex_lock_slowpath+0x10/0x10 [ 118.526472][ T561] ? cgroup_file_poll+0xd0/0xd0 [ 118.531293][ T561] kernfs_fop_write_iter+0x2d5/0x450 [ 118.536547][ T561] new_sync_write+0x358/0x6e0 [ 118.541191][ T561] ? new_sync_read+0x6e0/0x6e0 [ 118.545919][ T561] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 118.552647][ T561] ? rw_verify_area+0xc3/0x2b0 [ 118.557380][ T561] vfs_write+0x4f5/0x750 [ 118.561590][ T561] ksys_write+0x111/0x210 [ 118.565892][ T561] ? __ia32_sys_read+0xa0/0xa0 [ 118.571059][ T561] ? debug_smp_processor_id+0x17/0x20 [ 118.576527][ T561] ? fpregs_assert_state_consistent+0x49/0xb0 [ 118.582661][ T561] __x64_sys_write+0x6e/0xb0 [ 118.587254][ T561] ? syscall_exit_to_user_mode+0x27/0x160 [ 118.592951][ T561] do_syscall_64+0x32/0x80 [ 118.597342][ T561] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.603201][ T561] RIP: 0033:0x7fabe7ed7ce9 [ 118.607595][ T561] 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 [ 118.627179][ T561] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 118.635567][ T561] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 118.643511][ T561] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 118.651448][ T561] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 118.659475][ T561] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 118.667510][ T561] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000011 [ 118.718117][ T552] FAULT_INJECTION: forcing a failure. [ 118.718117][ T552] name failslab, interval 1, probability 0, space 0, times 0 [ 118.730988][ T552] CPU: 0 PID: 552 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 118.741578][ T552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.751786][ T552] Call Trace: [ 118.755076][ T552] dump_stack+0x84/0xad [ 118.759199][ T552] should_fail.cold+0x5/0x1f [ 118.763759][ T552] ? find_next_bit+0x14/0x20 [ 118.768406][ T552] ? cgroup_exit_cftypes+0x150/0x150 [ 118.773764][ T552] ? percpu_ref_init+0xd1/0x380 [ 118.778597][ T552] __should_failslab+0xd8/0x120 [ 118.783419][ T552] should_failslab+0x9/0x20 [ 118.788198][ T552] kmem_cache_alloc_trace+0x3d/0x330 [ 118.793496][ T552] ? cgroup_exit_cftypes+0x150/0x150 [ 118.799002][ T552] percpu_ref_init+0xd1/0x380 [ 118.803856][ T552] cgroup_apply_control_enable+0x486/0xf10 [ 118.809752][ T552] cgroup_subtree_control_write+0x6d3/0xd60 [ 118.815631][ T552] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 118.821772][ T552] ? kfree+0xc2/0x560 [ 118.826096][ T552] ? __kasan_slab_free+0x129/0x170 [ 118.831187][ T552] cgroup_file_write+0x272/0x7c0 [ 118.836104][ T552] ? __kasan_check_write+0x14/0x20 [ 118.841199][ T552] ? cgroup_file_poll+0xd0/0xd0 [ 118.846039][ T552] ? __mutex_lock_slowpath+0x10/0x10 [ 118.851425][ T552] ? cgroup_file_poll+0xd0/0xd0 [ 118.856802][ T552] kernfs_fop_write_iter+0x2d5/0x450 [ 118.862081][ T552] new_sync_write+0x358/0x6e0 [ 118.866740][ T552] ? new_sync_read+0x6e0/0x6e0 [ 118.871481][ T552] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 118.878221][ T552] ? rw_verify_area+0xc3/0x2b0 [ 118.882964][ T552] vfs_write+0x4f5/0x750 [ 118.887180][ T552] ksys_write+0x111/0x210 [ 118.891477][ T552] ? __ia32_sys_read+0xa0/0xa0 [ 118.896231][ T552] ? debug_smp_processor_id+0x17/0x20 [ 118.901724][ T552] ? fpregs_assert_state_consistent+0x49/0xb0 [ 118.908132][ T552] __x64_sys_write+0x6e/0xb0 [ 118.912697][ T552] ? syscall_exit_to_user_mode+0x27/0x160 [ 118.918388][ T552] do_syscall_64+0x32/0x80 [ 118.922778][ T552] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.928755][ T552] RIP: 0033:0x7fabe7ed7ce9 [ 118.933151][ T552] 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 [ 118.952917][ T552] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 118.961301][ T552] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 118.969434][ T552] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 118.977391][ T552] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 118.985333][ T552] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 118.993275][ T552] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000010 [ 119.003151][ T422] ------------[ cut here ]------------ [ 119.008638][ T422] WARNING: CPU: 0 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 119.017556][ T422] Modules linked in: [ 119.021475][ T422] CPU: 0 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 119.031355][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.041429][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 119.047050][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 119.066766][ T422] RSP: 0018:ffffc90000767c28 EFLAGS: 00010286 [ 119.072976][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecf8c RCX: 0000000000000002 [ 119.081683][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 119.089843][ T422] RBP: ffffc90000767ce8 R08: 0000000000000000 R09: 0000000000000008 [ 119.098084][ T422] R10: fffff520000ecf78 R11: ffff8881f7055bc0 R12: ffffc90000767c80 [ 119.106224][ T422] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810e4b4f00 [ 119.114195][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 119.123120][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 119.129888][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506b0 [ 119.137986][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 119.146285][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 119.155554][ T422] Call Trace: [ 119.158862][ T422] ? clone_private_mount+0x300/0x300 [ 119.164142][ T422] ? change_mnt_propagation+0x5df/0xd40 [ 119.169684][ T422] namespace_unlock+0x331/0x3e0 [ 119.174517][ T422] ? kern_unmount+0xb0/0xb0 [ 119.179027][ T422] ? unhash_mnt+0x3b0/0x3b0 [ 119.183524][ T422] path_umount+0x665/0x1170 [ 119.189782][ T422] ? __detach_mounts+0x210/0x210 [ 119.194722][ T422] ? user_path_at_empty+0xa2/0xf0 [ 119.199757][ T422] __x64_sys_umount+0xfb/0x120 [ 119.204507][ T422] ? path_umount+0x1170/0x1170 [ 119.209452][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 119.215523][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 119.221259][ T422] do_syscall_64+0x32/0x80 [ 119.227573][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 119.233548][ T422] RIP: 0033:0x7fabe7ed9097 [ 119.238058][ T422] 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 [ 119.258213][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 119.266714][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 119.274999][ T422] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 119.283146][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 119.291210][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 119.299359][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000011 [ 119.307692][ T422] ---[ end trace a21a7dc9bb3fec0b ]--- [ 119.313328][ T422] ------------[ cut here ]------------ [ 119.318825][ T422] WARNING: CPU: 0 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 119.328336][ T422] Modules linked in: [ 119.332670][ T422] CPU: 0 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 119.342553][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.352815][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 119.358565][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 119.378169][ T422] RSP: 0018:ffffc90000767cf0 EFLAGS: 00010282 [ 119.384229][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecfa5 RCX: 0000000000000002 [ 119.392211][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 119.400186][ T422] RBP: ffffc90000767db0 R08: 0000000000000000 R09: 0000000000000008 [ 119.408263][ T422] R10: fffff520000ecf91 R11: ffff8881f7055bc0 R12: ffffc90000767d48 [ 119.416231][ T422] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810e4b4f00 [ 119.424219][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 119.433167][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 119.439745][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506b0 [ 119.447706][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 119.455712][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 119.463671][ T422] Call Trace: [ 119.467039][ T422] ? namespace_unlock+0x331/0x3e0 [ 119.472141][ T422] ? clone_private_mount+0x300/0x300 [ 119.477450][ T422] ? dput+0xac/0x8a0 [ 119.481348][ T422] path_umount+0x6a3/0x1170 [ 119.485833][ T422] ? __detach_mounts+0x210/0x210 [ 119.490773][ T422] ? user_path_at_empty+0xa2/0xf0 [ 119.495773][ T422] __x64_sys_umount+0xfb/0x120 [ 119.500524][ T422] ? path_umount+0x1170/0x1170 [ 119.505273][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 119.511337][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 119.516950][ T422] do_syscall_64+0x32/0x80 [ 119.521363][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 119.527228][ T422] RIP: 0033:0x7fabe7ed9097 [ 119.531631][ T422] 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 [ 119.551258][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 119.559858][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 119.567940][ T422] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 119.576159][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 119.584222][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 119.592187][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000011 [ 119.600502][ T422] ---[ end trace a21a7dc9bb3fec0c ]--- [ 119.606446][ T558] FAULT_INJECTION: forcing a failure. [ 119.606446][ T558] name failslab, interval 1, probability 0, space 0, times 0 [ 119.619363][ T558] CPU: 0 PID: 558 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 119.629320][ T558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.639358][ T558] Call Trace: [ 119.642636][ T558] dump_stack+0x84/0xad [ 119.646940][ T558] should_fail.cold+0x5/0x1f [ 119.651523][ T558] ? find_next_bit+0x14/0x20 [ 119.656082][ T558] ? cgroup_exit_cftypes+0x150/0x150 [ 119.661334][ T558] ? percpu_ref_init+0xd1/0x380 [ 119.666153][ T558] __should_failslab+0xd8/0x120 [ 119.670969][ T558] should_failslab+0x9/0x20 [ 119.675452][ T558] kmem_cache_alloc_trace+0x3d/0x330 [ 119.680722][ T558] ? cgroup_exit_cftypes+0x150/0x150 [ 119.685987][ T558] percpu_ref_init+0xd1/0x380 [ 119.690639][ T558] cgroup_apply_control_enable+0x486/0xf10 [ 119.696410][ T558] cgroup_subtree_control_write+0x6d3/0xd60 [ 119.702289][ T558] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 119.708411][ T558] ? kfree+0xc2/0x560 [ 119.712355][ T558] ? __kasan_slab_free+0x129/0x170 [ 119.717437][ T558] cgroup_file_write+0x272/0x7c0 [ 119.722342][ T558] ? __kasan_check_write+0x14/0x20 [ 119.727418][ T558] ? cgroup_file_poll+0xd0/0xd0 [ 119.732243][ T558] ? __mutex_lock_slowpath+0x10/0x10 [ 119.737588][ T558] ? cgroup_file_poll+0xd0/0xd0 [ 119.742405][ T558] kernfs_fop_write_iter+0x2d5/0x450 [ 119.747751][ T558] new_sync_write+0x358/0x6e0 [ 119.752396][ T558] ? new_sync_read+0x6e0/0x6e0 [ 119.757127][ T558] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 119.763852][ T558] ? rw_verify_area+0xc3/0x2b0 [ 119.768583][ T558] vfs_write+0x4f5/0x750 [ 119.772966][ T558] ksys_write+0x111/0x210 [ 119.777261][ T558] ? __ia32_sys_read+0xa0/0xa0 [ 119.781995][ T558] ? debug_smp_processor_id+0x17/0x20 [ 119.787433][ T558] ? fpregs_assert_state_consistent+0x49/0xb0 [ 119.793566][ T558] __x64_sys_write+0x6e/0xb0 [ 119.798239][ T558] ? syscall_exit_to_user_mode+0x27/0x160 [ 119.803940][ T558] do_syscall_64+0x32/0x80 [ 119.808323][ T558] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 119.814184][ T558] RIP: 0033:0x7fabe7ed7ce9 [ 119.818670][ T558] 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 [ 119.838259][ T558] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 119.846636][ T558] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 119.854585][ T558] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 119.862547][ T558] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 119.870488][ T558] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 119.878431][ T558] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 000000000000000d [ 119.888913][ T424] ------------[ cut here ]------------ [ 119.894379][ T424] WARNING: CPU: 1 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 119.903336][ T424] Modules linked in: [ 119.907214][ T424] CPU: 1 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 119.917173][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.927247][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 119.932873][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 119.952486][ T424] RSP: 0018:ffffc900007b7c28 EFLAGS: 00010286 [ 119.958557][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6f8c RCX: 0000000000000002 [ 119.966596][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 119.974663][ T424] RBP: ffffc900007b7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 119.982653][ T424] R10: fffff520000f6f78 R11: 0000000000000000 R12: ffffc900007b7c80 [ 119.990861][ T424] R13: 00000000ffffffff R14: dffffc0000000000 R15: ffff88810e4b4480 [ 119.998879][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 120.008321][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 120.015027][ T424] CR2: 00007ffc76d2fff8 CR3: 0000000116c61000 CR4: 00000000003506a0 [ 120.023198][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 120.031191][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 120.039196][ T424] Call Trace: [ 120.042477][ T424] ? clone_private_mount+0x300/0x300 [ 120.047814][ T424] ? change_mnt_propagation+0x5df/0xd40 [ 120.053353][ T424] namespace_unlock+0x331/0x3e0 [ 120.058219][ T424] ? kern_unmount+0xb0/0xb0 [ 120.062801][ T424] ? unhash_mnt+0x3b0/0x3b0 [ 120.069076][ T424] path_umount+0x665/0x1170 [ 120.073576][ T424] ? __detach_mounts+0x210/0x210 [ 120.078523][ T424] ? user_path_at_empty+0xa2/0xf0 [ 120.083530][ T424] __x64_sys_umount+0xfb/0x120 [ 120.088313][ T424] ? path_umount+0x1170/0x1170 [ 120.093241][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 120.099598][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 120.105321][ T424] do_syscall_64+0x32/0x80 [ 120.109830][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 120.115709][ T424] RIP: 0033:0x7fabe7ed9097 [ 120.121180][ T424] 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 [ 120.141080][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 120.149855][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 120.158302][ T424] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 120.166315][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 120.175520][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 120.183721][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000e [ 120.191816][ T424] ---[ end trace a21a7dc9bb3fec0d ]--- [ 120.197435][ T424] ------------[ cut here ]------------ [ 120.202925][ T424] WARNING: CPU: 1 PID: 424 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 120.211980][ T424] Modules linked in: [ 120.215948][ T424] CPU: 1 PID: 424 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 120.226247][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.236339][ T424] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 120.242087][ T424] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 120.262006][ T424] RSP: 0018:ffffc900007b7cf0 EFLAGS: 00010282 [ 120.268111][ T424] RAX: 0000000000000000 RBX: 1ffff920000f6fa5 RCX: 0000000000000002 [ 120.276182][ T424] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 120.277979][ T554] FAULT_INJECTION: forcing a failure. [ 120.277979][ T554] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 120.284241][ T424] RBP: ffffc900007b7db0 R08: 0000000000000000 R09: 0000000000000008 [ 120.305526][ T424] R10: fffff520000f6f91 R11: 0000000000000000 R12: ffffc900007b7d48 [ 120.313477][ T424] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810e4b4480 [ 120.321514][ T424] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 120.322268][ T554] CPU: 0 PID: 554 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 120.330785][ T424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 120.340587][ T554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.340591][ T554] Call Trace: [ 120.340612][ T554] dump_stack+0x84/0xad [ 120.340617][ T554] should_fail.cold+0x5/0x1f [ 120.340629][ T554] ? kernfs_dop_revalidate+0x370/0x370 [ 120.347445][ T424] CR2: 00007ffc76d2fff8 CR3: 0000000116c61000 CR4: 00000000003506a0 [ 120.357488][ T554] should_fail_alloc_page+0x74/0x90 [ 120.357495][ T554] __alloc_pages_nodemask+0x132/0x5d0 [ 120.357503][ T554] ? mutex_lock+0x79/0xd0 [ 120.357507][ T554] ? __alloc_pages_slowpath.constprop.0+0x2300/0x2300 [ 120.357514][ T554] ? delegate_show+0x200/0x200 [ 120.357520][ T554] ? _raw_spin_lock_irq+0x87/0x120 [ 120.357523][ T554] ? _raw_spin_lock+0x120/0x120 [ 120.357534][ T554] allocate_slab+0x367/0x4c0 [ 120.360827][ T424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 120.364921][ T554] ___slab_alloc.constprop.0+0x240/0x760 [ 120.369493][ T424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 120.374926][ T554] ? pids_css_alloc+0x3c/0x130 [ 120.382965][ T424] Call Trace: [ 120.388125][ T554] ? cgroup_show_path+0x3d0/0x3d0 [ 120.388131][ T554] ? __fprop_inc_percpu_max+0xf0/0xf0 [ 120.388136][ T554] ? __radix_tree_replace+0xd0/0x250 [ 120.388140][ T554] ? pids_css_alloc+0x3c/0x130 [ 120.388144][ T554] ? pids_css_alloc+0x3c/0x130 [ 120.388148][ T554] kmem_cache_alloc_trace+0x2c6/0x330 [ 120.388154][ T554] pids_css_alloc+0x3c/0x130 [ 120.393494][ T424] ? namespace_unlock+0x331/0x3e0 [ 120.397780][ T554] cgroup_apply_control_enable+0x432/0xf10 [ 120.397785][ T554] cgroup_subtree_control_write+0x6d3/0xd60 [ 120.397791][ T554] ? cgroup_max_descendants_write+0x1b0/0x1b0 [ 120.397801][ T554] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 120.404974][ T424] ? clone_private_mount+0x300/0x300 [ 120.409701][ T554] cgroup_file_write+0x272/0x7c0 [ 120.409706][ T554] ? __kasan_check_write+0x14/0x20 [ 120.409709][ T554] ? cgroup_file_poll+0xd0/0xd0 [ 120.409715][ T554] ? __mutex_lock_slowpath+0x10/0x10 [ 120.409721][ T554] ? cgroup_file_poll+0xd0/0xd0 [ 120.414797][ T424] ? dput+0xac/0x8a0 [ 120.419696][ T554] kernfs_fop_write_iter+0x2d5/0x450 [ 120.419704][ T554] new_sync_write+0x358/0x6e0 [ 120.419708][ T554] ? new_sync_read+0x6e0/0x6e0 [ 120.419715][ T554] ? __fsnotify_update_child_dentry_flags+0x2b0/0x2b0 [ 120.419720][ T554] ? rw_verify_area+0xc3/0x2b0 [ 120.419726][ T554] vfs_write+0x4f5/0x750 [ 120.424280][ T424] path_umount+0x6a3/0x1170 [ 120.432331][ T554] ksys_write+0x111/0x210 [ 120.432336][ T554] ? __ia32_sys_read+0xa0/0xa0 [ 120.432344][ T554] ? debug_smp_processor_id+0x17/0x20 [ 120.432353][ T554] ? fpregs_assert_state_consistent+0x49/0xb0 [ 120.432363][ T554] __x64_sys_write+0x6e/0xb0 [ 120.438380][ T424] ? __detach_mounts+0x210/0x210 [ 120.446215][ T554] ? syscall_exit_to_user_mode+0x27/0x160 [ 120.451011][ T424] ? user_path_at_empty+0xa2/0xf0 [ 120.454239][ T554] do_syscall_64+0x32/0x80 [ 120.461211][ T424] __x64_sys_umount+0xfb/0x120 [ 120.466603][ T554] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 120.471924][ T424] ? path_umount+0x1170/0x1170 [ 120.476720][ T554] RIP: 0033:0x7fabe7ed7ce9 [ 120.482172][ T424] ? fpregs_assert_state_consistent+0x49/0xb0 [ 120.487661][ T554] 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 [ 120.492280][ T424] ? exit_to_user_mode_prepare+0x30/0xe0 [ 120.497356][ T554] RSP: 002b:00007ffc76d31358 EFLAGS: 00000246 [ 120.503209][ T424] do_syscall_64+0x32/0x80 [ 120.509033][ T554] ORIG_RAX: 0000000000000001 [ 120.509037][ T554] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabe7ed7ce9 [ 120.509039][ T554] RDX: 0000000000000006 RSI: 00000000200000c0 RDI: 0000000000000004 [ 120.509042][ T554] RBP: 00007ffc76d31360 R08: 0000000000000002 R09: 0000000000003833 [ 120.509045][ T554] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 120.509051][ T554] R13: 00007ffc76d313c0 R14: 00007ffc76d31400 R15: 0000000000000014 [ 120.515091][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 120.750407][ T424] RIP: 0033:0x7fabe7ed9097 [ 120.754811][ T424] 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 [ 120.774588][ T424] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 120.783015][ T424] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 120.790994][ T424] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 120.798949][ T424] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 120.806890][ T424] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 120.814844][ T424] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000000e write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [ 120.822802][ T424] ---[ end trace a21a7dc9bb3fec0e ]--- [ 120.831820][ T423] ------------[ cut here ]------------ [ 120.837300][ T423] WARNING: CPU: 1 PID: 423 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 120.846232][ T423] Modules linked in: [ 120.850114][ T423] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 120.860030][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.870134][ T423] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 120.875735][ T423] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 120.895340][ T423] RSP: 0018:ffffc900007a7c28 EFLAGS: 00010282 [ 120.901401][ T423] RAX: 0000000000000000 RBX: 1ffff920000f4f8c RCX: 0000000000000002 [ 120.909366][ T423] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 120.917306][ T423] RBP: ffffc900007a7ce8 R08: 0000000000000000 R09: 0000000000000008 [ 120.925273][ T423] R10: fffff520000f4f78 R11: 0000000000000000 R12: ffffc900007a7c80 [ 120.933277][ T423] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810e8ea000 [ 120.941256][ T423] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 120.950170][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 120.956724][ T423] CR2: 00007ffc76d31368 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 120.965159][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 120.973200][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 120.981240][ T423] Call Trace: [ 120.984518][ T423] ? clone_private_mount+0x300/0x300 [ 120.989802][ T423] ? change_mnt_propagation+0x5df/0xd40 [ 120.995405][ T423] namespace_unlock+0x331/0x3e0 [ 121.000256][ T423] ? kern_unmount+0xb0/0xb0 [ 121.004740][ T423] ? unhash_mnt+0x3b0/0x3b0 [ 121.009236][ T423] path_umount+0x665/0x1170 [ 121.013816][ T423] ? __detach_mounts+0x210/0x210 [ 121.018735][ T423] ? user_path_at_empty+0xa2/0xf0 [ 121.023763][ T423] __x64_sys_umount+0xfb/0x120 [ 121.028521][ T423] ? path_umount+0x1170/0x1170 [ 121.033264][ T423] ? fpregs_assert_state_consistent+0x49/0xb0 [ 121.039316][ T423] ? exit_to_user_mode_prepare+0x30/0xe0 [ 121.044933][ T423] do_syscall_64+0x32/0x80 [ 121.049327][ T423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 121.055190][ T423] RIP: 0033:0x7fabe7ed9097 [ 121.059607][ T423] 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 [ 121.079482][ T423] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 121.087873][ T423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 121.095829][ T423] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 121.103871][ T423] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 121.111912][ T423] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 121.120051][ T423] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000001e [ 121.128042][ T423] ---[ end trace a21a7dc9bb3fec0f ]--- [ 121.135255][ T421] ------------[ cut here ]------------ [ 121.140743][ T421] WARNING: CPU: 0 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 121.149675][ T421] Modules linked in: [ 121.153570][ T421] CPU: 0 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 121.163621][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.173696][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 121.179316][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 121.199167][ T421] RSP: 0018:ffffc90000757c28 EFLAGS: 00010282 [ 121.205206][ T421] RAX: 0000000000000000 RBX: 1ffff920000eaf8c RCX: 0000000000000002 [ 121.213173][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 121.221575][ T421] RBP: ffffc90000757ce8 R08: 0000000000000000 R09: 0000000000000008 [ 121.229540][ T421] R10: fffff520000eaf78 R11: ffff8881f7055bc0 R12: ffffc90000757c80 [ 121.237481][ T421] R13: 00000000fffffffe R14: dffffc0000000000 R15: ffff88810edd6300 [ 121.245433][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 121.256423][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 121.263074][ T421] CR2: 00007ffc76d2fff8 CR3: 0000000109020000 CR4: 00000000003506b0 [ 121.271191][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 121.279153][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 121.287107][ T421] Call Trace: [ 121.290376][ T421] ? clone_private_mount+0x300/0x300 [ 121.295643][ T421] ? change_mnt_propagation+0x5df/0xd40 [ 121.301190][ T421] namespace_unlock+0x331/0x3e0 [ 121.306016][ T421] ? kern_unmount+0xb0/0xb0 [ 121.310493][ T421] ? unhash_mnt+0x3b0/0x3b0 [ 121.314963][ T421] path_umount+0x665/0x1170 [ 121.319444][ T421] ? __detach_mounts+0x210/0x210 [ 121.324347][ T421] ? user_path_at_empty+0xa2/0xf0 [ 121.329385][ T421] __x64_sys_umount+0xfb/0x120 [ 121.334113][ T421] ? path_umount+0x1170/0x1170 [ 121.338874][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 121.344909][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 121.350519][ T421] do_syscall_64+0x32/0x80 [ 121.354903][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 121.360766][ T421] RIP: 0033:0x7fabe7ed9097 [ 121.365146][ T421] 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 [ 121.385541][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 121.395239][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 121.403191][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 121.411139][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 121.419350][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 121.427299][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000013 [ 121.435361][ T421] ---[ end trace a21a7dc9bb3fec10 ]--- [ 121.441432][ T422] ------------[ cut here ]------------ [ 121.446886][ T422] WARNING: CPU: 0 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 121.455983][ T422] Modules linked in: [ 121.459895][ T422] CPU: 0 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 121.470978][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.481111][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 121.486836][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 121.506962][ T422] RSP: 0018:ffffc90000767c28 EFLAGS: 00010282 [ 121.513717][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecf8c RCX: 0000000000000002 [ 121.521673][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 121.529626][ T422] RBP: ffffc90000767ce8 R08: 0000000000000000 R09: 0000000000000008 [ 121.537576][ T422] R10: fffff520000ecf78 R11: 0000000000000000 R12: ffffc90000767c80 [ 121.545526][ T422] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810e8eb500 [ 121.553483][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 121.562413][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 121.569022][ T422] CR2: 00007ffc76d2fff8 CR3: 0000000116a99000 CR4: 00000000003506b0 [ 121.576974][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 121.584945][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 121.592929][ T422] Call Trace: [ 121.596193][ T422] ? clone_private_mount+0x300/0x300 [ 121.601475][ T422] ? change_mnt_propagation+0x5df/0xd40 [ 121.606990][ T422] namespace_unlock+0x331/0x3e0 [ 121.611816][ T422] ? kern_unmount+0xb0/0xb0 [ 121.616289][ T422] ? unhash_mnt+0x3b0/0x3b0 [ 121.620804][ T422] path_umount+0x665/0x1170 [ 121.625438][ T422] ? __detach_mounts+0x210/0x210 [ 121.630356][ T422] ? user_path_at_empty+0xa2/0xf0 [ 121.635547][ T422] __x64_sys_umount+0xfb/0x120 [ 121.640404][ T422] ? path_umount+0x1170/0x1170 [ 121.645573][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 121.651617][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 121.657223][ T422] do_syscall_64+0x32/0x80 [ 121.661614][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 121.667472][ T422] RIP: 0033:0x7fabe7ed9097 [ 121.671865][ T422] 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 [ 121.691464][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 121.700105][ T422] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 121.708057][ T422] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 121.715997][ T422] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 121.723943][ T422] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 121.731895][ T422] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000012 [ 121.739846][ T422] ---[ end trace a21a7dc9bb3fec11 ]--- [ 121.747237][ T421] ------------[ cut here ]------------ [ 121.752729][ T421] WARNING: CPU: 0 PID: 421 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 121.761673][ T421] Modules linked in: [ 121.765731][ T421] CPU: 0 PID: 421 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 121.775716][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.785941][ T421] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 121.791563][ T421] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 121.811213][ T421] RSP: 0018:ffffc90000757cf0 EFLAGS: 00010282 [ 121.817338][ T421] RAX: 0000000000000000 RBX: 1ffff920000eafa5 RCX: 0000000000000002 [ 121.825391][ T421] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 121.833364][ T421] RBP: ffffc90000757db0 R08: 0000000000000000 R09: 0000000000000008 [ 121.841333][ T421] R10: fffff520000eaf91 R11: ffff8881f7055bc0 R12: ffffc90000757d48 [ 121.849290][ T421] R13: 00000000fffffffd R14: dffffc0000000000 R15: ffff88810edd6300 [ 121.857233][ T421] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 121.866155][ T421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 121.872752][ T421] CR2: 00007ffc76d31368 CR3: 0000000109020000 CR4: 00000000003506b0 [ 121.880730][ T421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 121.888684][ T421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 121.896992][ T421] Call Trace: [ 121.900383][ T421] ? namespace_unlock+0x331/0x3e0 [ 121.905377][ T421] ? clone_private_mount+0x300/0x300 [ 121.910661][ T421] ? dput+0xac/0x8a0 [ 121.914531][ T421] path_umount+0x6a3/0x1170 [ 121.919012][ T421] ? __detach_mounts+0x210/0x210 [ 121.923918][ T421] ? user_path_at_empty+0xa2/0xf0 [ 121.928933][ T421] __x64_sys_umount+0xfb/0x120 [ 121.933682][ T421] ? path_umount+0x1170/0x1170 [ 121.938703][ T421] ? fpregs_assert_state_consistent+0x49/0xb0 [ 121.944740][ T421] ? exit_to_user_mode_prepare+0x30/0xe0 [ 121.950443][ T421] do_syscall_64+0x32/0x80 [ 121.954847][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 121.960810][ T421] RIP: 0033:0x7fabe7ed9097 [ 121.965197][ T421] 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 [ 121.984786][ T421] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 121.993277][ T421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 122.001313][ T421] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 122.009268][ T421] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 122.017471][ T421] R10: 00005555573b4763 R11: 0000000000000202 R12: 00007ffc76d313c0 [ 122.025421][ T421] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 0000000000000013 [ 122.033386][ T421] ---[ end trace a21a7dc9bb3fec12 ]--- [ 122.039046][ T422] ------------[ cut here ]------------ [ 122.044510][ T422] WARNING: CPU: 0 PID: 422 at fs/namespace.c:1168 mntput_no_expire+0x4f4/0x980 [ 122.047805][ C1] list_add corruption. prev->next should be next (ffff8881f715b860), but was ffff88810eccf070. (prev=ffff88810eccf070). [ 122.053507][ T422] Modules linked in: [ 122.066274][ C1] ------------[ cut here ]------------ [ 122.070164][ T422] CPU: 0 PID: 422 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 122.075664][ C1] kernel BUG at lib/list_debug.c:26! [ 122.075679][ C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 122.085628][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.090869][ C1] CPU: 1 PID: 423 Comm: syz-executor101 Tainted: G W 5.10.105-syzkaller #0 [ 122.090873][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.090883][ C1] RIP: 0010:__list_add_valid+0xad/0xf0 [ 122.090891][ C1] Code: c7 c0 0e bf 84 4c 89 e6 e8 00 48 e0 01 0f 0b 48 c7 c7 20 34 a5 85 e8 80 15 e5 01 4c 89 e1 48 c7 c7 80 0f bf 84 e8 e3 47 e0 01 <0f> 0b 48 c7 c7 e0 33 a5 85 e8 63 15 e5 01 48 89 75 e8 e8 fc 45 70 [ 122.097311][ T422] RIP: 0010:mntput_no_expire+0x4f4/0x980 [ 122.108640][ C1] RSP: 0018:ffffc90000150c78 EFLAGS: 00010086 [ 122.108646][ C1] RAX: 0000000000000075 RBX: ffff88810eccf068 RCX: 0000000000000000 [ 122.108648][ C1] RDX: 0000000000000102 RSI: 0000000000000004 RDI: fffff5200002a182 [ 122.108651][ C1] RBP: ffffc90000150c90 R08: 0000000000000075 R09: 0000000000000003 [ 122.108653][ C1] R10: fffff5200002a128 R11: 6464615f7473696c R12: ffff88810eccf070 [ 122.108656][ C1] R13: ffff88810eccf070 R14: ffff8881f715b860 R15: ffff8881f7155540 [ 122.108660][ C1] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 122.108665][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.108668][ C1] CR2: 00007fabe7f2efe3 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 122.108671][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 122.108673][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 122.108680][ C1] Call Trace: [ 122.118646][ T422] Code: 0f 85 1e 03 00 00 48 8b 35 a1 cd 8b 04 b9 01 00 00 00 bf 08 00 00 00 48 c7 c2 80 ac 81 85 e8 93 95 a0 ff e9 d6 fb ff ff 79 02 <0f> 0b e8 05 28 b2 ff 83 05 be 29 a5 03 01 48 c7 c7 c4 d5 40 85 e8 [ 122.128920][ C1] [ 122.128933][ C1] insert_work+0xde/0x380 [ 122.128940][ C1] __queue_work+0x396/0xb50 [ 122.134461][ T422] RSP: 0018:ffffc90000767cf0 EFLAGS: 00010286 [ 122.154340][ C1] queue_work_on+0x48/0x50 [ 122.154349][ C1] css_release+0xb1/0x110 [ 122.154357][ C1] percpu_ref_switch_to_atomic_rcu+0x2f5/0x4c0 [ 122.154364][ C1] rcu_do_batch+0x418/0xbc0 [ 122.154373][ C1] ? rcu_gp_kthread+0x26c0/0x26c0 [ 122.160322][ T422] [ 122.166443][ C1] ? _raw_spin_unlock_irqrestore+0x47/0x90 [ 122.177628][ T422] RAX: 0000000000000000 RBX: 1ffff920000ecfa5 RCX: 0000000000000002 [ 122.185659][ C1] ? rcu_report_qs_rnp+0x23e/0x350 [ 122.185667][ C1] rcu_core+0x622/0xb70 [ 122.193888][ T422] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffffff86277938 [ 122.202011][ C1] rcu_core_si+0x9/0x10 [ 122.202017][ C1] __do_softirq+0x1c2/0x6cb [ 122.202024][ C1] asm_call_irq_on_stack+0xf/0x20 [ 122.214662][ T422] RBP: ffffc90000767db0 R08: 0000000000000000 R09: 0000000000000008 [ 122.223552][ C1] [ 122.223562][ C1] do_softirq_own_stack+0x61/0x80 [ 122.223574][ C1] irq_exit_rcu+0x17d/0x1a0 [ 122.230157][ T422] R10: fffff520000ecf91 R11: 0000000000000000 R12: ffffc90000767d48 [ 122.238103][ C1] sysvec_apic_timer_interrupt+0x3f/0xe0 [ 122.238107][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 122.238115][ C1] RIP: 0010:path_init+0x15b/0x19a0 [ 122.246066][ T422] R13: 00000000fffffffc R14: dffffc0000000000 R15: ffff88810e8eb500 [ 122.254182][ C1] Code: 8b 35 99 a6 a9 03 41 f6 c6 01 74 3b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 41 83 e7 07 48 c1 ea 03 41 83 c7 03 48 01 c2 f3 90 <0f> b6 02 41 38 c7 7c 08 84 c0 0f 85 01 0f 00 00 44 8b 35 5e a6 a9 [ 122.254184][ C1] RSP: 0018:ffffc900007a7be8 EFLAGS: 00000202 [ 122.254190][ C1] RAX: 0000000000000000 RBX: 0000000000000040 RCX: ffffc900007a7ed8 [ 122.254195][ C1] RDX: fffffbfff0a81ab8 RSI: 00000000000000c0 RDI: ffffc900007a7d4c [ 122.258075][ T422] FS: 00005555573b23c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 122.277743][ C1] RBP: ffffc900007a7c70 R08: ffff88810f779120 R09: dffffc0000000000 [ 122.277746][ C1] R10: fffff9400087bbc0 R11: 0000000000000000 R12: ffffc900007a7d00 [ 122.277748][ C1] R13: ffffc900007a7d38 R14: 0000000000000827 R15: 0000000000000003 [ 122.277762][ C1] ? path_init+0x85f/0x19a0 [ 122.280581][ T422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.284875][ C1] ? __kasan_check_read+0x11/0x20 [ 122.289497][ T422] CR2: 00007ffc76d31368 CR3: 0000000116a99000 CR4: 00000000003506b0 [ 122.295700][ C1] path_lookupat+0x1e/0x630 [ 122.300179][ T422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 122.304456][ C1] filename_lookup+0x16d/0x500 [ 122.310586][ T422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 122.315048][ C1] ? _raw_spin_unlock+0x65/0x80 [ 122.320055][ T422] Call Trace: [ 122.322431][ C1] ? may_linkat+0x190/0x190 [ 122.328214][ T422] ? namespace_unlock+0x331/0x3e0 [ 122.336151][ C1] ? __check_object_size+0x1df/0x270 [ 122.341334][ T422] ? clone_private_mount+0x300/0x300 [ 122.345441][ C1] ? strncpy_from_user+0x74/0x290 [ 122.353396][ T422] ? dput+0xac/0x8a0 [ 122.357533][ C1] ? getname_flags.part.0+0x8c/0x480 [ 122.362075][ T422] path_umount+0x6a3/0x1170 [ 122.367063][ C1] ? __detach_mounts+0x210/0x210 [ 122.375021][ T422] ? __detach_mounts+0x210/0x210 [ 122.377988][ C1] user_path_at_empty+0xa2/0xf0 [ 122.377994][ C1] __x64_sys_umount+0xbe/0x120 [ 122.378001][ C1] ? path_umount+0x1170/0x1170 [ 122.383005][ T422] ? user_path_at_empty+0xa2/0xf0 [ 122.387481][ C1] ? exit_to_user_mode_prepare+0x6a/0xe0 [ 122.395431][ T422] __x64_sys_umount+0xfb/0x120 [ 122.401019][ C1] do_syscall_64+0x32/0x80 [ 122.401026][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 122.401033][ C1] RIP: 0033:0x7fabe7ed9097 [ 122.406995][ T422] ? path_umount+0x1170/0x1170 [ 122.412083][ C1] 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 [ 122.412086][ C1] RSP: 002b:00007ffc76d30298 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 122.420075][ T422] ? fpregs_assert_state_consistent+0x49/0xb0 [ 122.440065][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabe7ed9097 [ 122.440068][ C1] RDX: 00007ffc76d3035a RSI: 000000000000000a RDI: 00007ffc76d30350 [ 122.440070][ C1] RBP: 00007ffc76d30350 R08: 00000000ffffffff R09: 00007ffc76d30130 [ 122.440073][ C1] R10: 00005555573b4763 R11: 0000000000000246 R12: 00007ffc76d313c0 [ 122.440076][ C1] R13: 00005555573b46c0 R14: 00007ffc76d302c0 R15: 000000000000001e [ 122.440082][ C1] Modules linked in: [ 122.446381][ T422] ? exit_to_user_mode_prepare+0x30/0xe0 [ 122.454505][ C1] [ 122.454513][ C1] ---[ end trace a21a7dc9bb3fec13 ]--- [ 122.454520][ C1] RIP: 0010:__list_add_valid+0xad/0xf0 [ 122.454528][ C1] Code: c7 c0 0e bf 84 4c 89 e6 e8 00 48 e0 01 0f 0b 48 c7 c7 20 34 a5 85 e8 80 15 e5 01 4c 89 e1 48 c7 c7 80 0f bf 84 e8 e3 47 e0 01 <0f> 0b 48 c7 c7 e0 33 a5 85 e8 63 15 e5 01 48 89 75 e8 e8 fc 45 70 [ 122.462497][ T422] do_syscall_64+0x32/0x80 [ 122.473811][ C1] RSP: 0018:ffffc90000150c78 EFLAGS: 00010086 [ 122.473817][ C1] RAX: 0000000000000075 RBX: ffff88810eccf068 RCX: 0000000000000000 [ 122.473820][ C1] RDX: 0000000000000102 RSI: 0000000000000004 RDI: fffff5200002a182 [ 122.473825][ C1] RBP: ffffc90000150c90 R08: 0000000000000075 R09: 0000000000000003 [ 122.482042][ T422] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 122.489955][ C1] R10: fffff5200002a128 R11: 6464615f7473696c R12: ffff88810eccf070 [ 122.489958][ C1] R13: ffff88810eccf070 R14: ffff8881f715b860 R15: ffff8881f7155540 [ 122.489961][ C1] FS: 00005555573b23c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 122.489968][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.489971][ C1] CR2: 00007fabe7f2efe3 CR3: 0000000117a6d000 CR4: 00000000003506a0 [ 122.489978][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 122.498108][ T422] RIP: 0033:0x7fabe7ed9097 [ 122.502547][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 122.509116][ T422] 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 [ 122.514187][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 122.522172][ T422] RSP: 002b:00007ffc76d30298 EFLAGS: 00000202 [ 122.535179][ C1] Kernel Offset: disabled [ 122.910668][ C1] Rebooting in 86400 seconds..