[ 18.943479][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 18.955343][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 18.963873][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 18.979773][ T372] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 19.479470][ T177] device bridge_slave_1 left promiscuous mode [ 19.486132][ T177] bridge0: port 2(bridge_slave_1) entered disabled state [ 19.493899][ T177] device bridge_slave_0 left promiscuous mode [ 19.500426][ T177] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.871172][ T23] kauditd_printk_skb: 64 callbacks suppressed [ 29.871178][ T23] audit: type=1400 audit(1653575996.859:147): avc: denied { read } for pid=142 comm="syslogd" name="log" dev="sda1" ino=1125 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 Warning: Permanently added '10.128.10.46' (ECDSA) to the list of known hosts. 2022/05/26 14:40:03 parsed 1 programs 2022/05/26 14:40:03 executed programs: 0 [ 36.719025][ T23] audit: type=1400 audit(1653576003.699:148): avc: denied { mounton } for pid=402 comm="syz-executor" path="/syzcgroup/unified" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=dir permissive=1 [ 36.742694][ T402] cgroup: Unknown subsys name 'net' [ 36.748213][ T402] cgroup: Unknown subsys name 'devices' [ 36.755101][ T402] cgroup: Unknown subsys name 'hugetlb' [ 36.760807][ T402] cgroup: Unknown subsys name 'rlimit' [ 36.766770][ T23] audit: type=1400 audit(1653576003.749:149): avc: denied { mounton } for pid=402 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 36.791919][ T23] audit: type=1400 audit(1653576003.749:150): avc: denied { mount } for pid=402 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 36.815390][ T23] audit: type=1400 audit(1653576003.749:151): avc: denied { mounton } for pid=405 comm="syz-executor.0" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 36.816130][ T405] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.839440][ T23] audit: type=1400 audit(1653576003.749:152): avc: denied { module_request } for pid=405 comm="syz-executor.0" kmod="netdev-nr0" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 36.868312][ T405] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.875630][ T405] device bridge_slave_0 entered promiscuous mode [ 36.882572][ T405] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.889715][ T405] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.896932][ T405] device bridge_slave_1 entered promiscuous mode [ 36.921360][ T405] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.928403][ T405] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.935644][ T405] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.942666][ T405] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.957725][ T52] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.964909][ T52] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.972462][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 36.980221][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 36.988571][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 36.996709][ T24] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.003738][ T24] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.019734][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.027969][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.036371][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.044609][ T52] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.051628][ T52] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.058980][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.067715][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.081727][ T373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.090001][ T373] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 37.098370][ T373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.109908][ T23] audit: type=1400 audit(1653576004.099:153): avc: denied { mount } for pid=405 comm="syz-executor.0" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 37.134744][ T23] audit: type=1400 audit(1653576004.119:154): avc: denied { ioctl } for pid=410 comm="syz-executor.0" path="/dev/loop-control" dev="devtmpfs" ino=114 ioctlcmd=0x4c81 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 37.180611][ T411] FAULT_INJECTION: forcing a failure. [ 37.180611][ T411] name failslab, interval 1, probability 0, space 0, times 1 [ 37.193350][ T411] CPU: 1 PID: 411 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 37.204180][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.214215][ T411] Call Trace: [ 37.217483][ T411] dump_stack_lvl+0x1e2/0x24b [ 37.222143][ T411] ? bfq_pos_tree_add_move+0x43e/0x43e [ 37.227575][ T411] dump_stack+0x15/0x17 [ 37.231708][ T411] should_fail+0x3c0/0x510 [ 37.236099][ T411] ? __kernfs_new_node+0x99/0x6e0 [ 37.241101][ T411] __should_failslab+0x9f/0xe0 [ 37.245838][ T411] should_failslab+0x9/0x20 [ 37.250316][ T411] __kmalloc_track_caller+0x5f/0x350 [ 37.255571][ T411] ? __kernel_text_address+0x9a/0x110 [ 37.260913][ T411] ? unwind_get_return_address+0x4c/0x90 [ 37.266517][ T411] kstrdup_const+0x55/0x90 [ 37.270905][ T411] __kernfs_new_node+0x99/0x6e0 [ 37.275728][ T411] ? stack_trace_save+0x12d/0x1f0 [ 37.280724][ T411] ? kernfs_new_node+0x170/0x170 [ 37.285731][ T411] ? stack_trace_snprint+0x100/0x100 [ 37.290990][ T411] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 37.296769][ T411] ? stack_depot_save+0x433/0x4a0 [ 37.301768][ T411] ? device_add+0xbe/0xbd0 [ 37.306157][ T411] kernfs_create_dir_ns+0x9b/0x230 [ 37.311239][ T411] sysfs_create_dir_ns+0x181/0x390 [ 37.316323][ T411] ? sysfs_warn_dup+0xa0/0xa0 [ 37.320981][ T411] kobject_add_internal+0x766/0xda0 [ 37.326154][ T411] kobject_add+0x14c/0x210 [ 37.330544][ T411] ? _raw_spin_lock+0xa3/0x1b0 [ 37.335336][ T411] ? kobject_init+0x1e0/0x1e0 [ 37.339987][ T411] ? __kasan_check_write+0x14/0x20 [ 37.345072][ T411] ? mutex_unlock+0x1d/0x40 [ 37.349552][ T411] ? get_device_parent+0x2c5/0x430 [ 37.354630][ T411] device_add+0x3ca/0xbd0 [ 37.359520][ T411] __device_add_disk+0x7c1/0x11b0 [ 37.364531][ T411] ? device_add_disk+0x40/0x40 [ 37.369284][ T411] ? vsprintf+0x40/0x40 [ 37.373425][ T411] device_add_disk+0x2a/0x40 [ 37.377991][ T411] loop_add+0x533/0x770 [ 37.382127][ T411] loop_control_ioctl+0x564/0x740 [ 37.387143][ T411] ? loop_remove+0xb0/0xb0 [ 37.391625][ T411] ? __fget_files+0x310/0x370 [ 37.396297][ T411] ? security_file_ioctl+0xb1/0xd0 [ 37.401389][ T411] ? loop_remove+0xb0/0xb0 [ 37.405780][ T411] __se_sys_ioctl+0x115/0x190 [ 37.410430][ T411] __x64_sys_ioctl+0x7b/0x90 [ 37.414993][ T411] do_syscall_64+0x34/0x70 [ 37.419390][ T411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 37.425262][ T411] RIP: 0033:0x7f340fac50e9 [ 37.429655][ T411] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 37.449256][ T411] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.457659][ T411] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 37.465614][ T411] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 37.473559][ T411] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 37.481683][ T411] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 37.489642][ T411] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 37.498393][ T411] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 37.512903][ T413] FAULT_INJECTION: forcing a failure. [ 37.512903][ T413] name failslab, interval 1, probability 0, space 0, times 0 [ 37.525670][ T413] CPU: 0 PID: 413 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 37.536426][ T413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.546459][ T413] Call Trace: [ 37.549728][ T413] dump_stack_lvl+0x1e2/0x24b [ 37.554513][ T413] ? panic+0x7d7/0x7d7 [ 37.558559][ T413] ? bfq_pos_tree_add_move+0x43e/0x43e [ 37.564000][ T413] ? __kasan_kmalloc+0x9/0x10 [ 37.568657][ T413] ? kobj_map+0x72/0x6f0 [ 37.572873][ T413] ? __device_add_disk+0x6e0/0x11b0 [ 37.578043][ T413] ? device_add_disk+0x2a/0x40 [ 37.582782][ T413] ? loop_control_ioctl+0x564/0x740 [ 37.587961][ T413] ? __se_sys_ioctl+0x115/0x190 [ 37.592792][ T413] ? __x64_sys_ioctl+0x7b/0x90 [ 37.597538][ T413] dump_stack+0x15/0x17 [ 37.601674][ T413] should_fail+0x3c0/0x510 [ 37.606068][ T413] ? kvasprintf_const+0x139/0x180 [ 37.611075][ T413] __should_failslab+0x9f/0xe0 [ 37.615929][ T413] should_failslab+0x9/0x20 [ 37.620475][ T413] __kmalloc_track_caller+0x5f/0x350 [ 37.625761][ T413] kstrdup_const+0x55/0x90 [ 37.630159][ T413] kvasprintf_const+0x139/0x180 [ 37.634987][ T413] kobject_set_name_vargs+0x61/0x120 [ 37.640254][ T413] dev_set_name+0xd1/0x120 [ 37.644653][ T413] ? __kmalloc+0x1f7/0x360 [ 37.649156][ T413] ? get_device+0x30/0x30 [ 37.653477][ T413] ? kobj_map+0x6ad/0x6f0 [ 37.657800][ T413] __device_add_disk+0x733/0x11b0 [ 37.662804][ T413] ? device_add_disk+0x40/0x40 [ 37.667819][ T413] ? vsprintf+0x40/0x40 [ 37.672163][ T413] device_add_disk+0x2a/0x40 [ 37.676734][ T413] loop_add+0x533/0x770 [ 37.680866][ T413] loop_control_ioctl+0x564/0x740 [ 37.685869][ T413] ? loop_remove+0xb0/0xb0 [ 37.690260][ T413] ? __fget_files+0x310/0x370 [ 37.694914][ T413] ? security_file_ioctl+0xb1/0xd0 [ 37.699998][ T413] ? loop_remove+0xb0/0xb0 [ 37.704518][ T413] __se_sys_ioctl+0x115/0x190 [ 37.709179][ T413] __x64_sys_ioctl+0x7b/0x90 [ 37.713749][ T413] do_syscall_64+0x34/0x70 [ 37.718322][ T413] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 37.724194][ T413] RIP: 0033:0x7f340fac50e9 [ 37.728583][ T413] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 37.748338][ T413] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.756734][ T413] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 37.764682][ T413] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 37.772634][ T413] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 37.780893][ T413] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 37.789210][ T413] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 37.804336][ T415] FAULT_INJECTION: forcing a failure. [ 37.804336][ T415] name failslab, interval 1, probability 0, space 0, times 0 [ 37.817132][ T415] CPU: 1 PID: 415 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 37.827868][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.837902][ T415] Call Trace: [ 37.841173][ T415] dump_stack_lvl+0x1e2/0x24b [ 37.845825][ T415] ? bfq_pos_tree_add_move+0x43e/0x43e [ 37.851264][ T415] dump_stack+0x15/0x17 [ 37.855399][ T415] should_fail+0x3c0/0x510 [ 37.859877][ T415] ? __kernfs_new_node+0x99/0x6e0 [ 37.865327][ T415] __should_failslab+0x9f/0xe0 [ 37.870156][ T415] should_failslab+0x9/0x20 [ 37.874671][ T415] __kmalloc_track_caller+0x5f/0x350 [ 37.879931][ T415] ? __kernel_text_address+0x9a/0x110 [ 37.885470][ T415] ? unwind_get_return_address+0x4c/0x90 [ 37.891077][ T415] kstrdup_const+0x55/0x90 [ 37.895667][ T415] __kernfs_new_node+0x99/0x6e0 [ 37.900495][ T415] ? stack_trace_save+0x12d/0x1f0 [ 37.905585][ T415] ? kernfs_new_node+0x170/0x170 [ 37.910671][ T415] ? stack_trace_snprint+0x100/0x100 [ 37.915933][ T415] ? dput+0x2ce/0x320 [ 37.919898][ T415] ? device_add+0xbe/0xbd0 [ 37.924321][ T415] kernfs_create_dir_ns+0x9b/0x230 [ 37.929416][ T415] sysfs_create_dir_ns+0x181/0x390 [ 37.934615][ T415] ? sysfs_warn_dup+0xa0/0xa0 [ 37.939279][ T415] kobject_add_internal+0x766/0xda0 [ 37.944455][ T415] kobject_add+0x14c/0x210 [ 37.948843][ T415] ? _raw_spin_lock+0xa3/0x1b0 [ 37.953580][ T415] ? kobject_init+0x1e0/0x1e0 [ 37.958260][ T415] ? __kasan_check_write+0x14/0x20 [ 37.963347][ T415] ? mutex_unlock+0x1d/0x40 [ 37.967929][ T415] ? get_device_parent+0x2c5/0x430 [ 37.973035][ T415] device_add+0x3ca/0xbd0 [ 37.977347][ T415] __device_add_disk+0x7c1/0x11b0 [ 37.982466][ T415] ? device_add_disk+0x40/0x40 [ 37.987208][ T415] ? vsprintf+0x40/0x40 [ 37.991339][ T415] device_add_disk+0x2a/0x40 [ 37.995999][ T415] loop_add+0x533/0x770 [ 38.000136][ T415] loop_control_ioctl+0x564/0x740 [ 38.005139][ T415] ? loop_remove+0xb0/0xb0 [ 38.009545][ T415] ? __fget_files+0x310/0x370 [ 38.014212][ T415] ? security_file_ioctl+0xb1/0xd0 [ 38.019299][ T415] ? loop_remove+0xb0/0xb0 [ 38.023698][ T415] __se_sys_ioctl+0x115/0x190 [ 38.028356][ T415] __x64_sys_ioctl+0x7b/0x90 [ 38.032928][ T415] do_syscall_64+0x34/0x70 [ 38.037328][ T415] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.043314][ T415] RIP: 0033:0x7f340fac50e9 [ 38.048498][ T415] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 38.068086][ T415] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.076475][ T415] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 38.084425][ T415] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.092485][ T415] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 38.100781][ T415] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 38.108728][ T415] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 38.117432][ T415] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 38.125957][ T23] audit: type=1400 audit(1653576005.099:155): avc: denied { append } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 38.125974][ T23] audit: type=1400 audit(1653576005.099:156): avc: denied { open } for pid=142 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 38.170661][ T23] audit: type=1400 audit(1653576005.099:157): avc: denied { getattr } for pid=142 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 38.199004][ T417] FAULT_INJECTION: forcing a failure. [ 38.199004][ T417] name failslab, interval 1, probability 0, space 0, times 0 [ 38.211638][ T417] CPU: 1 PID: 417 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 38.222489][ T417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.232523][ T417] Call Trace: [ 38.235793][ T417] dump_stack_lvl+0x1e2/0x24b [ 38.240453][ T417] ? bfq_pos_tree_add_move+0x43e/0x43e [ 38.245894][ T417] dump_stack+0x15/0x17 [ 38.250196][ T417] should_fail+0x3c0/0x510 [ 38.254595][ T417] ? __kernfs_new_node+0x99/0x6e0 [ 38.262213][ T417] __should_failslab+0x9f/0xe0 [ 38.266965][ T417] should_failslab+0x9/0x20 [ 38.271450][ T417] __kmalloc_track_caller+0x5f/0x350 [ 38.277070][ T417] ? __kernel_text_address+0x9a/0x110 [ 38.282428][ T417] ? unwind_get_return_address+0x4c/0x90 [ 38.288091][ T417] kstrdup_const+0x55/0x90 [ 38.292486][ T417] __kernfs_new_node+0x99/0x6e0 [ 38.297411][ T417] ? stack_trace_save+0x12d/0x1f0 [ 38.302431][ T417] ? kernfs_new_node+0x170/0x170 [ 38.307340][ T417] ? stack_trace_snprint+0x100/0x100 [ 38.312607][ T417] ? dput+0x2ce/0x320 [ 38.316563][ T417] ? device_add+0xbe/0xbd0 [ 38.320964][ T417] kernfs_create_dir_ns+0x9b/0x230 [ 38.326160][ T417] sysfs_create_dir_ns+0x181/0x390 [ 38.331346][ T417] ? sysfs_warn_dup+0xa0/0xa0 [ 38.336019][ T417] kobject_add_internal+0x766/0xda0 [ 38.341239][ T417] kobject_add+0x14c/0x210 [ 38.345642][ T417] ? _raw_spin_lock+0xa3/0x1b0 [ 38.350385][ T417] ? kobject_init+0x1e0/0x1e0 [ 38.355045][ T417] ? __kasan_check_write+0x14/0x20 [ 38.360139][ T417] ? mutex_unlock+0x1d/0x40 [ 38.364632][ T417] ? get_device_parent+0x2c5/0x430 [ 38.369831][ T417] device_add+0x3ca/0xbd0 [ 38.374145][ T417] __device_add_disk+0x7c1/0x11b0 [ 38.379159][ T417] ? device_add_disk+0x40/0x40 [ 38.383906][ T417] ? vsprintf+0x40/0x40 [ 38.388045][ T417] device_add_disk+0x2a/0x40 [ 38.392625][ T417] loop_add+0x533/0x770 [ 38.396783][ T417] loop_control_ioctl+0x564/0x740 [ 38.401801][ T417] ? loop_remove+0xb0/0xb0 [ 38.406198][ T417] ? __fget_files+0x310/0x370 [ 38.410867][ T417] ? security_file_ioctl+0xb1/0xd0 [ 38.416061][ T417] ? loop_remove+0xb0/0xb0 [ 38.420454][ T417] __se_sys_ioctl+0x115/0x190 [ 38.425107][ T417] __x64_sys_ioctl+0x7b/0x90 [ 38.429680][ T417] do_syscall_64+0x34/0x70 [ 38.434077][ T417] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.440036][ T417] RIP: 0033:0x7f340fac50e9 [ 38.444425][ T417] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 38.464266][ T417] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.472668][ T417] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 38.480632][ T417] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.488577][ T417] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 38.496531][ T417] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 38.504483][ T417] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 38.513098][ T417] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 38.527218][ T419] FAULT_INJECTION: forcing a failure. [ 38.527218][ T419] name failslab, interval 1, probability 0, space 0, times 0 [ 38.539846][ T419] CPU: 1 PID: 419 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 38.550587][ T419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.560754][ T419] Call Trace: [ 38.564025][ T419] dump_stack_lvl+0x1e2/0x24b [ 38.568678][ T419] ? panic+0x7d7/0x7d7 [ 38.572725][ T419] ? bfq_pos_tree_add_move+0x43e/0x43e [ 38.578156][ T419] dump_stack+0x15/0x17 [ 38.582281][ T419] should_fail+0x3c0/0x510 [ 38.586667][ T419] __should_failslab+0x9f/0xe0 [ 38.591419][ T419] should_failslab+0x9/0x20 [ 38.595949][ T419] kmem_cache_alloc+0x3f/0x300 [ 38.600684][ T419] ? __kernfs_new_node+0xdb/0x6e0 [ 38.605739][ T419] __kernfs_new_node+0xdb/0x6e0 [ 38.610595][ T419] ? stack_trace_save+0x12d/0x1f0 [ 38.615601][ T419] ? kernfs_new_node+0x170/0x170 [ 38.620524][ T419] ? stack_trace_snprint+0x100/0x100 [ 38.625784][ T419] ? dput+0x2ce/0x320 [ 38.629752][ T419] ? device_add+0xbe/0xbd0 [ 38.634154][ T419] kernfs_create_dir_ns+0x9b/0x230 [ 38.639253][ T419] sysfs_create_dir_ns+0x181/0x390 [ 38.644346][ T419] ? sysfs_warn_dup+0xa0/0xa0 [ 38.649001][ T419] kobject_add_internal+0x766/0xda0 [ 38.654232][ T419] kobject_add+0x14c/0x210 [ 38.658638][ T419] ? _raw_spin_lock+0xa3/0x1b0 [ 38.663387][ T419] ? kobject_init+0x1e0/0x1e0 [ 38.668044][ T419] ? __kasan_check_write+0x14/0x20 [ 38.673198][ T419] ? mutex_unlock+0x1d/0x40 [ 38.677986][ T419] ? get_device_parent+0x2c5/0x430 [ 38.683554][ T419] device_add+0x3ca/0xbd0 [ 38.689080][ T419] __device_add_disk+0x7c1/0x11b0 [ 38.694095][ T419] ? device_add_disk+0x40/0x40 [ 38.698837][ T419] ? vsprintf+0x40/0x40 [ 38.702973][ T419] device_add_disk+0x2a/0x40 [ 38.707540][ T419] loop_add+0x533/0x770 [ 38.711804][ T419] loop_control_ioctl+0x564/0x740 [ 38.716918][ T419] ? loop_remove+0xb0/0xb0 [ 38.721308][ T419] ? __fget_files+0x310/0x370 [ 38.725985][ T419] ? security_file_ioctl+0xb1/0xd0 [ 38.731067][ T419] ? loop_remove+0xb0/0xb0 [ 38.735465][ T419] __se_sys_ioctl+0x115/0x190 [ 38.740123][ T419] __x64_sys_ioctl+0x7b/0x90 [ 38.744691][ T419] do_syscall_64+0x34/0x70 [ 38.749082][ T419] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.755300][ T419] RIP: 0033:0x7f340fac50e9 [ 38.759691][ T419] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 38.779274][ T419] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.787661][ T419] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 38.795630][ T419] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.803584][ T419] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 38.811540][ T419] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 38.819590][ T419] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 38.829367][ T419] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 38.843692][ T421] FAULT_INJECTION: forcing a failure. [ 38.843692][ T421] name failslab, interval 1, probability 0, space 0, times 0 [ 38.857182][ T421] CPU: 0 PID: 421 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 38.867930][ T421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.877992][ T421] Call Trace: [ 38.881264][ T421] dump_stack_lvl+0x1e2/0x24b [ 38.885911][ T421] ? panic+0x7d7/0x7d7 [ 38.889972][ T421] ? bfq_pos_tree_add_move+0x43e/0x43e [ 38.895406][ T421] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 38.900404][ T421] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 38.905577][ T421] dump_stack+0x15/0x17 [ 38.909707][ T421] should_fail+0x3c0/0x510 [ 38.914096][ T421] ? kobj_map+0x72/0x6f0 [ 38.918313][ T421] __should_failslab+0x9f/0xe0 [ 38.923048][ T421] should_failslab+0x9/0x20 [ 38.927522][ T421] __kmalloc+0x60/0x360 [ 38.931653][ T421] ? __device_add_disk+0x585/0x11b0 [ 38.936825][ T421] kobj_map+0x72/0x6f0 [ 38.940865][ T421] ? exact_match+0x20/0x20 [ 38.945254][ T421] ? bdev_check_media_change+0x4c0/0x4c0 [ 38.950858][ T421] __device_add_disk+0x6e0/0x11b0 [ 38.955858][ T421] ? device_add_disk+0x40/0x40 [ 38.960597][ T421] ? vsprintf+0x40/0x40 [ 38.964734][ T421] device_add_disk+0x2a/0x40 [ 38.969297][ T421] loop_add+0x533/0x770 [ 38.973425][ T421] loop_control_ioctl+0x564/0x740 [ 38.978422][ T421] ? loop_remove+0xb0/0xb0 [ 38.982809][ T421] ? __fget_files+0x310/0x370 [ 38.987459][ T421] ? security_file_ioctl+0xb1/0xd0 [ 38.992540][ T421] ? loop_remove+0xb0/0xb0 [ 38.996931][ T421] __se_sys_ioctl+0x115/0x190 [ 39.001577][ T421] __x64_sys_ioctl+0x7b/0x90 [ 39.006142][ T421] do_syscall_64+0x34/0x70 [ 39.010538][ T421] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.016399][ T421] RIP: 0033:0x7f340fac50e9 [ 39.020787][ T421] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 39.040368][ T421] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.048757][ T421] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 39.056702][ T421] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.064646][ T421] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 39.072590][ T421] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 39.080547][ T421] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 39.091745][ T409] ================================================================== [ 39.099826][ T409] BUG: KASAN: use-after-free in lo_open+0x93/0xc0 [ 39.106300][ T409] Write of size 4 at addr ffff88810e1c6804 by task udevd/409 [ 39.113633][ T409] [ 39.115940][ T409] CPU: 0 PID: 409 Comm: udevd Not tainted 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 39.125883][ T409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.135912][ T409] Call Trace: [ 39.139181][ T409] dump_stack_lvl+0x1e2/0x24b [ 39.143831][ T409] ? bfq_pos_tree_add_move+0x43e/0x43e [ 39.149263][ T409] ? panic+0x7d7/0x7d7 [ 39.153312][ T409] ? mutex_lock+0xa6/0x110 [ 39.157702][ T409] print_address_description+0x81/0x3c0 [ 39.163219][ T409] kasan_report+0x1a4/0x1f0 [ 39.167713][ T409] ? lo_open+0x93/0xc0 [ 39.171761][ T409] ? lo_open+0x93/0xc0 [ 39.175804][ T409] kasan_check_range+0x2aa/0x2e0 [ 39.180714][ T409] __kasan_check_write+0x14/0x20 [ 39.185653][ T409] lo_open+0x93/0xc0 [ 39.189522][ T409] __blkdev_get+0x599/0x1360 [ 39.194091][ T409] ? bdev_test+0xa0/0xa0 [ 39.198391][ T409] ? blkdev_bio_end_io+0x470/0x470 [ 39.203487][ T409] ? selinux_file_receive+0x140/0x140 [ 39.208835][ T409] blkdev_open+0x21a/0x450 [ 39.213228][ T409] ? block_ioctl+0xf0/0xf0 [ 39.217627][ T409] do_dentry_open+0x7a2/0x1090 [ 39.222366][ T409] vfs_open+0x73/0x80 [ 39.226408][ T409] path_openat+0x2638/0x2fd0 [ 39.230981][ T409] ? __kasan_slab_alloc+0xb2/0xe0 [ 39.235980][ T409] ? do_filp_open+0x440/0x440 [ 39.240629][ T409] do_filp_open+0x200/0x440 [ 39.245109][ T409] ? vfs_tmpfile+0x230/0x230 [ 39.249673][ T409] ? get_unused_fd_flags+0x95/0xa0 [ 39.254764][ T409] do_sys_openat2+0x13b/0x470 [ 39.259413][ T409] ? do_sys_open+0x220/0x220 [ 39.263976][ T409] ? __fdget_pos+0x1fe/0x310 [ 39.268536][ T409] __x64_sys_openat+0x243/0x290 [ 39.273384][ T409] ? __ia32_sys_open+0x270/0x270 [ 39.278307][ T409] ? debug_smp_processor_id+0x17/0x20 [ 39.283652][ T409] do_syscall_64+0x34/0x70 [ 39.288041][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.293990][ T409] RIP: 0033:0x7f6735ee5697 [ 39.298387][ T409] Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f [ 39.317996][ T409] RSP: 002b:00007ffcc496b680 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 39.326382][ T409] RAX: ffffffffffffffda RBX: 000055a708caf850 RCX: 00007f6735ee5697 [ 39.334331][ T409] RDX: 00000000000a0800 RSI: 000055a708c834d0 RDI: 00000000ffffff9c [ 39.342379][ T409] RBP: 000055a708c834d0 R08: 00000000ffffffff R09: 00007ffcc49aa0b8 [ 39.350336][ T409] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 39.358289][ T409] R13: 000055a708c85b00 R14: 0000000000000001 R15: 000055a708c772c0 [ 39.366349][ T409] [ 39.368664][ T409] Allocated by task 419: [ 39.372900][ T409] ____kasan_kmalloc+0xdc/0x110 [ 39.377729][ T409] __kasan_kmalloc+0x9/0x10 [ 39.382207][ T409] kmem_cache_alloc_trace+0x1dd/0x330 [ 39.387553][ T409] loop_add+0x5a/0x770 [ 39.391594][ T409] loop_control_ioctl+0x564/0x740 [ 39.396589][ T409] __se_sys_ioctl+0x115/0x190 [ 39.401246][ T409] __x64_sys_ioctl+0x7b/0x90 [ 39.405811][ T409] do_syscall_64+0x34/0x70 [ 39.410196][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.418066][ T409] [ 39.420374][ T409] Freed by task 419: [ 39.424246][ T409] kasan_set_track+0x4c/0x80 [ 39.428808][ T409] kasan_set_free_info+0x23/0x40 [ 39.433727][ T409] ____kasan_slab_free+0x121/0x160 [ 39.438812][ T409] __kasan_slab_free+0x11/0x20 [ 39.443548][ T409] slab_free_freelist_hook+0xcc/0x1a0 [ 39.448889][ T409] kfree+0xc3/0x290 [ 39.452669][ T409] loop_add+0x591/0x770 [ 39.456797][ T409] loop_control_ioctl+0x564/0x740 [ 39.461794][ T409] __se_sys_ioctl+0x115/0x190 [ 39.466437][ T409] __x64_sys_ioctl+0x7b/0x90 [ 39.470999][ T409] do_syscall_64+0x34/0x70 [ 39.475388][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.481255][ T409] [ 39.483560][ T409] The buggy address belongs to the object at ffff88810e1c6800 [ 39.483560][ T409] which belongs to the cache kmalloc-1k of size 1024 [ 39.497674][ T409] The buggy address is located 4 bytes inside of [ 39.497674][ T409] 1024-byte region [ffff88810e1c6800, ffff88810e1c6c00) [ 39.510833][ T409] The buggy address belongs to the page: [ 39.516448][ T409] page:ffffea0004387000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10e1c0 [ 39.526662][ T409] head:ffffea0004387000 order:3 compound_mapcount:0 compound_pincount:0 [ 39.534968][ T409] flags: 0x8000000000010200(slab|head) [ 39.540404][ T409] raw: 8000000000010200 dead000000000100 dead000000000122 ffff888100042f00 [ 39.548966][ T409] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 39.557629][ T409] page dumped because: kasan: bad access detected [ 39.564023][ T409] page_owner tracks the page as allocated [ 39.569730][ T409] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2000(__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 417, ts 38198213792, free_ts 38194810139 [ 39.588549][ T409] get_page_from_freelist+0x745/0x760 [ 39.593908][ T409] __alloc_pages_nodemask+0x3b6/0x890 [ 39.599257][ T409] allocate_slab+0x78/0x540 [ 39.603735][ T409] ___slab_alloc+0x131/0x2e0 [ 39.608323][ T409] __slab_alloc+0x63/0xa0 [ 39.612624][ T409] __kmalloc+0x24f/0x360 [ 39.616841][ T409] blk_mq_realloc_hw_ctxs+0x4bb/0x1840 [ 39.622271][ T409] blk_mq_init_allocated_queue+0x41a/0x1a30 [ 39.628138][ T409] blk_mq_init_queue+0x6c/0xc0 [ 39.632879][ T409] loop_add+0x26c/0x770 [ 39.637041][ T409] loop_control_ioctl+0x564/0x740 [ 39.642037][ T409] __se_sys_ioctl+0x115/0x190 [ 39.646691][ T409] __x64_sys_ioctl+0x7b/0x90 [ 39.651260][ T409] do_syscall_64+0x34/0x70 [ 39.655799][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.661664][ T409] page last free stack trace: [ 39.666327][ T409] __free_pages_ok+0x7f8/0x830 [ 39.671066][ T409] __free_pages+0x2d2/0x4c0 [ 39.675545][ T409] __free_slab+0xd3/0x190 [ 39.679929][ T409] unfreeze_partials+0x17d/0x1b0 [ 39.684841][ T409] put_cpu_partial+0xc8/0x190 [ 39.689496][ T409] __slab_free+0x2d8/0x3a0 [ 39.693904][ T409] ___cache_free+0x11f/0x140 [ 39.698478][ T409] qlink_free+0x38/0x40 [ 39.702614][ T409] qlist_free_all+0x4c/0xc0 [ 39.707095][ T409] kasan_quarantine_reduce+0x15a/0x170 [ 39.712530][ T409] __kasan_slab_alloc+0x2f/0xe0 [ 39.717365][ T409] kmem_cache_alloc+0x16c/0x300 [ 39.722191][ T409] getname_flags+0xba/0x510 [ 39.726668][ T409] user_path_at_empty+0x2d/0x50 [ 39.731500][ T409] __x64_sys_umount+0xf0/0x170 [ 39.736235][ T409] do_syscall_64+0x34/0x70 [ 39.740717][ T409] [ 39.743017][ T409] Memory state around the buggy address: [ 39.748623][ T409] ffff88810e1c6700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.756761][ T409] ffff88810e1c6780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.764796][ T409] >ffff88810e1c6800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.772827][ T409] ^ [ 39.776873][ T409] ffff88810e1c6880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.784908][ T409] ffff88810e1c6900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.792941][ T409] ================================================================== [ 39.800979][ T409] Disabling lock debugging due to kernel taint [ 39.808387][ T409] ------------[ cut here ]------------ [ 39.813910][ T409] refcount_t: addition on 0; use-after-free. [ 39.820097][ T409] WARNING: CPU: 0 PID: 409 at lib/refcount.c:25 refcount_warn_saturate+0x147/0x1b0 [ 39.829376][ T409] Modules linked in: [ 39.833261][ T409] CPU: 0 PID: 409 Comm: udevd Tainted: G B 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 39.844688][ T409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.855077][ T409] RIP: 0010:refcount_warn_saturate+0x147/0x1b0 [ 39.861244][ T409] Code: c7 a0 bc 43 85 31 c0 e8 57 22 f2 fe 0f 0b eb a1 e8 ee e7 1f ff c6 05 7a 6c 0f 04 01 48 c7 c7 20 bd 43 85 31 c0 e8 39 22 f2 fe <0f> 0b eb 83 e8 d0 e7 1f ff c6 05 5d 6c 0f 04 01 48 c7 c7 80 bd 43 [ 39.880868][ T409] RSP: 0018:ffffc90000cc7670 EFLAGS: 00010246 [ 39.887027][ T409] RAX: eb619ca7038f9500 RBX: 0000000000000002 RCX: ffff88810b8c2780 [ 39.895010][ T409] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 39.902984][ T409] RBP: ffffc90000cc7680 R08: ffffffff8153a998 R09: fffff52000198df5 [ 39.910961][ T409] R10: fffff52000198df5 R11: 1ffff92000198df4 R12: dffffc0000000000 [ 39.918921][ T409] R13: ffff88810e196000 R14: 0000000000000002 R15: ffff88810e196000 [ 39.926916][ T409] FS: 00007f6735d8e840(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 39.935851][ T409] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.942710][ T409] CR2: 00007f340fa3aff8 CR3: 000000010d780000 CR4: 00000000003506b0 [ 39.950756][ T409] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.958795][ T409] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.966888][ T409] Call Trace: [ 39.970179][ T409] bdi_get+0x83/0x90 [ 39.974048][ T409] __blkdev_get+0x120c/0x1360 [ 39.978696][ T409] ? bdev_test+0xa0/0xa0 [ 39.982970][ T409] ? blkdev_bio_end_io+0x470/0x470 [ 39.988064][ T409] ? selinux_file_receive+0x140/0x140 [ 39.993446][ T409] blkdev_open+0x21a/0x450 [ 39.997846][ T409] ? block_ioctl+0xf0/0xf0 [ 40.002271][ T409] do_dentry_open+0x7a2/0x1090 [ 40.007017][ T409] vfs_open+0x73/0x80 [ 40.011033][ T409] path_openat+0x2638/0x2fd0 [ 40.015612][ T409] ? __kasan_slab_alloc+0xb2/0xe0 [ 40.020663][ T409] ? do_filp_open+0x440/0x440 [ 40.025474][ T409] do_filp_open+0x200/0x440 [ 40.030130][ T409] ? vfs_tmpfile+0x230/0x230 [ 40.034714][ T409] ? get_unused_fd_flags+0x95/0xa0 [ 40.039948][ T409] do_sys_openat2+0x13b/0x470 [ 40.044735][ T409] ? do_sys_open+0x220/0x220 [ 40.049359][ T409] ? __fdget_pos+0x1fe/0x310 [ 40.054353][ T409] __x64_sys_openat+0x243/0x290 [ 40.059175][ T409] ? __ia32_sys_open+0x270/0x270 [ 40.064163][ T409] ? debug_smp_processor_id+0x17/0x20 [ 40.069543][ T409] do_syscall_64+0x34/0x70 [ 40.073950][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.079859][ T409] RIP: 0033:0x7f6735ee5697 [ 40.084263][ T409] Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f [ 40.104136][ T409] RSP: 002b:00007ffcc496b680 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 40.112615][ T409] RAX: ffffffffffffffda RBX: 000055a708caf850 RCX: 00007f6735ee5697 [ 40.120591][ T409] RDX: 00000000000a0800 RSI: 000055a708c834d0 RDI: 00000000ffffff9c [ 40.128567][ T409] RBP: 000055a708c834d0 R08: 00000000ffffffff R09: 00007ffcc49aa0b8 [ 40.136550][ T409] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 40.144521][ T409] R13: 000055a708c85b00 R14: 0000000000000001 R15: 000055a708c772c0 [ 40.152588][ T409] ---[ end trace 2c2d8a6f4678f13e ]--- [ 40.161469][ T21] ------------[ cut here ]------------ [ 40.166960][ T21] refcount_t: underflow; use-after-free. [ 40.172928][ T21] WARNING: CPU: 0 PID: 21 at lib/refcount.c:28 refcount_warn_saturate+0x165/0x1b0 [ 40.182453][ T21] Modules linked in: [ 40.186365][ T21] CPU: 0 PID: 21 Comm: kdevtmpfs Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 40.198075][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.208180][ T21] RIP: 0010:refcount_warn_saturate+0x165/0x1b0 [ 40.214366][ T21] Code: c7 20 bd 43 85 31 c0 e8 39 22 f2 fe 0f 0b eb 83 e8 d0 e7 1f ff c6 05 5d 6c 0f 04 01 48 c7 c7 80 bd 43 85 31 c0 e8 1b 22 f2 fe <0f> 0b e9 62 ff ff ff e8 af e7 1f ff c6 05 3d 6c 0f 04 01 48 c7 c7 [ 40.233989][ T21] RSP: 0018:ffffc9000016f890 EFLAGS: 00010246 [ 40.240178][ T21] RAX: 0472677f0d573d00 RBX: 0000000000000003 RCX: ffff8881002d2780 [ 40.248508][ T21] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 40.256499][ T21] RBP: ffffc9000016f8a0 R08: ffffffff8153a998 R09: ffffed103ee4a5d8 [ 40.264476][ T21] R10: ffffed103ee4a5d8 R11: 1ffff1103ee4a5d7 R12: dffffc0000000000 [ 40.272450][ T21] R13: 1ffff11021cd5aea R14: 0000000000000003 R15: ffff88810e196040 [ 40.280426][ T21] FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 40.289372][ T21] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.295954][ T21] CR2: 00007f340fbd8028 CR3: 000000010bbae000 CR4: 00000000003506b0 [ 40.304017][ T21] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.312200][ T21] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.320178][ T21] Call Trace: [ 40.323457][ T21] bdi_put+0x114/0x120 [ 40.327511][ T21] bdev_evict_inode+0x1a8/0x2b0 [ 40.332369][ T21] ? _raw_spin_trylock_bh+0x1d0/0x1d0 [ 40.337840][ T21] ? bdev_free_inode+0x30/0x30 [ 40.342614][ T21] evict+0x2a3/0x6c0 [ 40.346496][ T21] iput+0x61f/0x7d0 [ 40.350322][ T21] bd_forget+0xff/0x110 [ 40.354469][ T21] evict+0x31f/0x6c0 [ 40.358349][ T21] iput+0x61f/0x7d0 [ 40.362164][ T21] d_delete_notify+0xad/0xd0 [ 40.366743][ T21] vfs_unlink+0x3c2/0x510 [ 40.371079][ T21] devtmpfs_work_loop+0xdc6/0x1070 [ 40.376180][ T21] ? public_dev_mount+0xe0/0xe0 [ 40.381134][ T21] ? psi_task_change+0x1dc/0x390 [ 40.386062][ T21] ? try_invoke_on_locked_down_task+0x280/0x280 [ 40.392311][ T21] ? _raw_spin_lock_irqsave+0xf8/0x210 [ 40.397754][ T21] ? _raw_spin_lock+0x1b0/0x1b0 [ 40.402611][ T21] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 40.408407][ T21] ? complete+0x65/0xb0 [ 40.412573][ T21] devtmpfsd+0x49/0x50 [ 40.416636][ T21] kthread+0x349/0x3d0 [ 40.420708][ T21] ? vclkdev_alloc+0x150/0x150 [ 40.425465][ T21] ? kthread_blkcg+0xd0/0xd0 [ 40.430072][ T21] ret_from_fork+0x1f/0x30 [ 40.434475][ T21] ---[ end trace 2c2d8a6f4678f13f ]--- [ 40.530271][ T424] FAULT_INJECTION: forcing a failure. [ 40.530271][ T424] name failslab, interval 1, probability 0, space 0, times 0 [ 40.542944][ T424] CPU: 1 PID: 424 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 40.555063][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.565092][ T424] Call Trace: [ 40.568361][ T424] dump_stack_lvl+0x1e2/0x24b [ 40.573041][ T424] ? panic+0x7d7/0x7d7 [ 40.577093][ T424] ? bfq_pos_tree_add_move+0x43e/0x43e [ 40.582525][ T424] ? __kasan_kmalloc+0x9/0x10 [ 40.587173][ T424] ? kobj_map+0x72/0x6f0 [ 40.591388][ T424] ? __device_add_disk+0x6e0/0x11b0 [ 40.596562][ T424] ? device_add_disk+0x2a/0x40 [ 40.601301][ T424] ? loop_control_ioctl+0x564/0x740 [ 40.606467][ T424] ? __se_sys_ioctl+0x115/0x190 [ 40.611288][ T424] ? __x64_sys_ioctl+0x7b/0x90 [ 40.616022][ T424] dump_stack+0x15/0x17 [ 40.620150][ T424] should_fail+0x3c0/0x510 [ 40.624541][ T424] ? kvasprintf_const+0x139/0x180 [ 40.629537][ T424] __should_failslab+0x9f/0xe0 [ 40.634272][ T424] should_failslab+0x9/0x20 [ 40.638755][ T424] __kmalloc_track_caller+0x5f/0x350 [ 40.644035][ T424] kstrdup_const+0x55/0x90 [ 40.648445][ T424] kvasprintf_const+0x139/0x180 [ 40.653267][ T424] kobject_set_name_vargs+0x61/0x120 [ 40.658654][ T424] dev_set_name+0xd1/0x120 [ 40.663060][ T424] ? __kmalloc+0x1f7/0x360 [ 40.667455][ T424] ? get_device+0x30/0x30 [ 40.671765][ T424] ? kobj_map+0x6ad/0x6f0 [ 40.676076][ T424] __device_add_disk+0x733/0x11b0 [ 40.681076][ T424] ? device_add_disk+0x40/0x40 [ 40.685825][ T424] ? vsprintf+0x40/0x40 [ 40.690134][ T424] device_add_disk+0x2a/0x40 [ 40.694712][ T424] loop_add+0x533/0x770 [ 40.698843][ T424] loop_control_ioctl+0x564/0x740 [ 40.703850][ T424] ? loop_remove+0xb0/0xb0 [ 40.708243][ T424] ? __fget_files+0x310/0x370 [ 40.712983][ T424] ? security_file_ioctl+0xb1/0xd0 [ 40.718077][ T424] ? loop_remove+0xb0/0xb0 [ 40.722480][ T424] __se_sys_ioctl+0x115/0x190 [ 40.727136][ T424] __x64_sys_ioctl+0x7b/0x90 [ 40.731703][ T424] do_syscall_64+0x34/0x70 [ 40.736096][ T424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.742056][ T424] RIP: 0033:0x7f340fac50e9 [ 40.746454][ T424] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 40.766140][ T424] RSP: 002b:00007f340fa1a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.774530][ T424] RAX: ffffffffffffffda RBX: 00007f340fbd8030 RCX: 00007f340fac50e9 [ 40.782476][ T424] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.790421][ T424] RBP: 00007f340fa1a1d0 R08: 0000000000000000 R09: 0000000000000000 [ 40.798373][ T424] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 40.806336][ T424] R13: 00007ffd71be58ef R14: 00007f340fa1a300 R15: 0000000000022000 [ 40.821374][ T427] FAULT_INJECTION: forcing a failure. [ 40.821374][ T427] name failslab, interval 1, probability 0, space 0, times 0 [ 40.834203][ T427] CPU: 0 PID: 427 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 40.846425][ T427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.856456][ T427] Call Trace: [ 40.859740][ T427] dump_stack_lvl+0x1e2/0x24b [ 40.864400][ T427] ? panic+0x7d7/0x7d7 [ 40.868453][ T427] ? bfq_pos_tree_add_move+0x43e/0x43e [ 40.873897][ T427] ? memcpy+0x56/0x70 [ 40.877876][ T427] dump_stack+0x15/0x17 [ 40.882027][ T427] should_fail+0x3c0/0x510 [ 40.886437][ T427] ? device_add+0xbe/0xbd0 [ 40.890832][ T427] __should_failslab+0x9f/0xe0 [ 40.895605][ T427] should_failslab+0x9/0x20 [ 40.900097][ T427] kmem_cache_alloc_trace+0x3a/0x330 [ 40.905359][ T427] ? __kasan_check_write+0x14/0x20 [ 40.910461][ T427] device_add+0xbe/0xbd0 [ 40.914686][ T427] __device_add_disk+0x7c1/0x11b0 [ 40.919685][ T427] ? device_add_disk+0x40/0x40 [ 40.924429][ T427] ? vsprintf+0x40/0x40 [ 40.928562][ T427] device_add_disk+0x2a/0x40 [ 40.933128][ T427] loop_add+0x533/0x770 [ 40.937347][ T427] loop_control_ioctl+0x564/0x740 [ 40.942355][ T427] ? loop_remove+0xb0/0xb0 [ 40.946756][ T427] ? __fget_files+0x310/0x370 [ 40.951418][ T427] ? security_file_ioctl+0xb1/0xd0 [ 40.956567][ T427] ? loop_remove+0xb0/0xb0 [ 40.960966][ T427] __se_sys_ioctl+0x115/0x190 [ 40.965616][ T427] __x64_sys_ioctl+0x7b/0x90 [ 40.970182][ T427] do_syscall_64+0x34/0x70 [ 40.974577][ T427] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.980443][ T427] RIP: 0033:0x7f340fac50e9 [ 40.984834][ T427] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 41.004427][ T427] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.012836][ T427] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 41.020793][ T427] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.028744][ T427] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.036695][ T427] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.044818][ T427] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 41.061219][ T429] FAULT_INJECTION: forcing a failure. [ 41.061219][ T429] name failslab, interval 1, probability 0, space 0, times 0 [ 41.073876][ T429] CPU: 0 PID: 429 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 41.085996][ T429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.096023][ T429] Call Trace: [ 41.099295][ T429] dump_stack_lvl+0x1e2/0x24b [ 41.104136][ T429] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.109568][ T429] dump_stack+0x15/0x17 [ 41.113699][ T429] should_fail+0x3c0/0x510 [ 41.118092][ T429] ? __kernfs_new_node+0x99/0x6e0 [ 41.123112][ T429] __should_failslab+0x9f/0xe0 [ 41.127977][ T429] should_failslab+0x9/0x20 [ 41.132470][ T429] __kmalloc_track_caller+0x5f/0x350 [ 41.137830][ T429] ? __kernel_text_address+0x9a/0x110 [ 41.143195][ T429] ? unwind_get_return_address+0x4c/0x90 [ 41.148805][ T429] kstrdup_const+0x55/0x90 [ 41.153199][ T429] __kernfs_new_node+0x99/0x6e0 [ 41.158026][ T429] ? stack_trace_save+0x12d/0x1f0 [ 41.163026][ T429] ? kernfs_new_node+0x170/0x170 [ 41.167935][ T429] ? stack_trace_snprint+0x100/0x100 [ 41.173285][ T429] ? dput+0x2ce/0x320 [ 41.177241][ T429] ? device_add+0xbe/0xbd0 [ 41.181630][ T429] kernfs_create_dir_ns+0x9b/0x230 [ 41.186802][ T429] sysfs_create_dir_ns+0x181/0x390 [ 41.191885][ T429] ? sysfs_warn_dup+0xa0/0xa0 [ 41.196535][ T429] kobject_add_internal+0x766/0xda0 [ 41.201706][ T429] kobject_add+0x14c/0x210 [ 41.206103][ T429] ? _raw_spin_lock+0xa3/0x1b0 [ 41.210839][ T429] ? kobject_init+0x1e0/0x1e0 [ 41.215488][ T429] ? __kasan_check_write+0x14/0x20 [ 41.220571][ T429] ? mutex_unlock+0x1d/0x40 [ 41.225050][ T429] ? get_device_parent+0x2c5/0x430 [ 41.230131][ T429] device_add+0x3ca/0xbd0 [ 41.234441][ T429] __device_add_disk+0x7c1/0x11b0 [ 41.240582][ T429] ? device_add_disk+0x40/0x40 [ 41.245338][ T429] ? vsprintf+0x40/0x40 [ 41.249997][ T429] device_add_disk+0x2a/0x40 [ 41.254572][ T429] loop_add+0x533/0x770 [ 41.258702][ T429] loop_control_ioctl+0x564/0x740 [ 41.263715][ T429] ? loop_remove+0xb0/0xb0 [ 41.268110][ T429] ? __fget_files+0x310/0x370 [ 41.272766][ T429] ? security_file_ioctl+0xb1/0xd0 [ 41.277854][ T429] ? loop_remove+0xb0/0xb0 [ 41.282243][ T429] __se_sys_ioctl+0x115/0x190 [ 41.286887][ T429] __x64_sys_ioctl+0x7b/0x90 [ 41.291446][ T429] do_syscall_64+0x34/0x70 [ 41.295833][ T429] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.301694][ T429] RIP: 0033:0x7f340fac50e9 [ 41.306081][ T429] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 41.325661][ T429] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.334050][ T429] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 41.342024][ T429] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.350059][ T429] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.358002][ T429] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.365950][ T429] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 41.374316][ T429] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 41.388203][ T431] FAULT_INJECTION: forcing a failure. [ 41.388203][ T431] name failslab, interval 1, probability 0, space 0, times 0 [ 41.400883][ T431] CPU: 1 PID: 431 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 41.413035][ T431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.423070][ T431] Call Trace: [ 41.426445][ T431] dump_stack_lvl+0x1e2/0x24b [ 41.431093][ T431] ? panic+0x7d7/0x7d7 [ 41.435137][ T431] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.440573][ T431] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 41.445567][ T431] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 41.450997][ T431] dump_stack+0x15/0x17 [ 41.455130][ T431] should_fail+0x3c0/0x510 [ 41.459528][ T431] ? kobj_map+0x72/0x6f0 [ 41.463765][ T431] __should_failslab+0x9f/0xe0 [ 41.468503][ T431] should_failslab+0x9/0x20 [ 41.472981][ T431] __kmalloc+0x60/0x360 [ 41.477133][ T431] ? __device_add_disk+0x585/0x11b0 [ 41.482304][ T431] kobj_map+0x72/0x6f0 [ 41.486346][ T431] ? exact_match+0x20/0x20 [ 41.490759][ T431] ? bdev_check_media_change+0x4c0/0x4c0 [ 41.496380][ T431] __device_add_disk+0x6e0/0x11b0 [ 41.501385][ T431] ? device_add_disk+0x40/0x40 [ 41.506148][ T431] ? vsprintf+0x40/0x40 [ 41.510281][ T431] device_add_disk+0x2a/0x40 [ 41.514851][ T431] loop_add+0x533/0x770 [ 41.518985][ T431] loop_control_ioctl+0x564/0x740 [ 41.523991][ T431] ? loop_remove+0xb0/0xb0 [ 41.528382][ T431] ? __fget_files+0x310/0x370 [ 41.533035][ T431] ? security_file_ioctl+0xb1/0xd0 [ 41.538121][ T431] ? loop_remove+0xb0/0xb0 [ 41.542622][ T431] __se_sys_ioctl+0x115/0x190 [ 41.547277][ T431] __x64_sys_ioctl+0x7b/0x90 [ 41.551845][ T431] do_syscall_64+0x34/0x70 [ 41.556237][ T431] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.562276][ T431] RIP: 0033:0x7f340fac50e9 [ 41.566670][ T431] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 41.586352][ T431] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.594921][ T431] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 41.602871][ T431] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.610826][ T431] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.618776][ T431] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.627001][ T431] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 41.644123][ T409] udevd[409]: inotify_add_watch(7, /dev/loop0, 10) failed: No such file or directory [ 41.690626][ T433] FAULT_INJECTION: forcing a failure. [ 41.690626][ T433] name failslab, interval 1, probability 0, space 0, times 0 [ 41.703314][ T433] CPU: 1 PID: 433 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 41.715449][ T433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.730605][ T433] Call Trace: [ 41.733897][ T433] dump_stack_lvl+0x1e2/0x24b [ 41.738675][ T433] ? panic+0x7d7/0x7d7 [ 41.742721][ T433] ? bfq_pos_tree_add_move+0x43e/0x43e [ 41.748161][ T433] dump_stack+0x15/0x17 [ 41.752304][ T433] should_fail+0x3c0/0x510 [ 41.756698][ T433] __should_failslab+0x9f/0xe0 [ 41.761459][ T433] should_failslab+0x9/0x20 [ 41.765942][ T433] kmem_cache_alloc+0x3f/0x300 [ 41.770705][ T433] ? __kernfs_new_node+0xdb/0x6e0 [ 41.775798][ T433] __kernfs_new_node+0xdb/0x6e0 [ 41.780632][ T433] ? mutex_unlock+0x1d/0x40 [ 41.785116][ T433] ? kernfs_new_node+0x170/0x170 [ 41.790024][ T433] ? kernfs_add_one+0x4c5/0x5e0 [ 41.794847][ T433] ? kernfs_create_dir_ns+0x1eb/0x230 [ 41.800192][ T433] kernfs_new_node+0x97/0x170 [ 41.805035][ T433] __kernfs_create_file+0x4a/0x270 [ 41.810313][ T433] sysfs_add_file_mode_ns+0x273/0x320 [ 41.815667][ T433] sysfs_create_file_ns+0x191/0x2a0 [ 41.820845][ T433] ? sysfs_add_file_mode_ns+0x320/0x320 [ 41.826382][ T433] ? __kasan_check_write+0x14/0x20 [ 41.831470][ T433] ? __up_read+0x16/0x100 [ 41.835969][ T433] device_create_file+0x110/0x1d0 [ 41.840968][ T433] device_add+0x496/0xbd0 [ 41.845419][ T433] __device_add_disk+0x7c1/0x11b0 [ 41.850594][ T433] ? device_add_disk+0x40/0x40 [ 41.855344][ T433] ? vsprintf+0x40/0x40 [ 41.859480][ T433] device_add_disk+0x2a/0x40 [ 41.864141][ T433] loop_add+0x533/0x770 [ 41.868278][ T433] loop_control_ioctl+0x564/0x740 [ 41.873374][ T433] ? loop_remove+0xb0/0xb0 [ 41.877775][ T433] ? __fget_files+0x310/0x370 [ 41.882429][ T433] ? security_file_ioctl+0xb1/0xd0 [ 41.887515][ T433] ? loop_remove+0xb0/0xb0 [ 41.891905][ T433] __se_sys_ioctl+0x115/0x190 [ 41.896554][ T433] __x64_sys_ioctl+0x7b/0x90 [ 41.901118][ T433] do_syscall_64+0x34/0x70 [ 41.905507][ T433] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.911369][ T433] RIP: 0033:0x7f340fac50e9 [ 41.915759][ T433] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 2022/05/26 14:40:08 executed programs: 11 [ 41.935336][ T433] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.943721][ T433] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 41.951671][ T433] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.959617][ T433] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 41.967649][ T433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 41.975594][ T433] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 41.992073][ T435] FAULT_INJECTION: forcing a failure. [ 41.992073][ T435] name failslab, interval 1, probability 0, space 0, times 0 [ 42.004826][ T435] CPU: 0 PID: 435 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.017124][ T435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.027156][ T435] Call Trace: [ 42.030422][ T435] dump_stack_lvl+0x1e2/0x24b [ 42.035076][ T435] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.040510][ T435] dump_stack+0x15/0x17 [ 42.044641][ T435] should_fail+0x3c0/0x510 [ 42.049030][ T435] ? __kernfs_new_node+0x99/0x6e0 [ 42.054027][ T435] __should_failslab+0x9f/0xe0 [ 42.058764][ T435] should_failslab+0x9/0x20 [ 42.063238][ T435] __kmalloc_track_caller+0x5f/0x350 [ 42.068498][ T435] ? __kernel_text_address+0x9a/0x110 [ 42.073847][ T435] ? unwind_get_return_address+0x4c/0x90 [ 42.079455][ T435] kstrdup_const+0x55/0x90 [ 42.083845][ T435] __kernfs_new_node+0x99/0x6e0 [ 42.088675][ T435] ? stack_trace_save+0x12d/0x1f0 [ 42.093672][ T435] ? kernfs_new_node+0x170/0x170 [ 42.098584][ T435] ? stack_trace_snprint+0x100/0x100 [ 42.103842][ T435] ? dput+0x2ce/0x320 [ 42.107800][ T435] ? device_add+0xbe/0xbd0 [ 42.112188][ T435] kernfs_create_dir_ns+0x9b/0x230 [ 42.117286][ T435] sysfs_create_dir_ns+0x181/0x390 [ 42.122371][ T435] ? sysfs_warn_dup+0xa0/0xa0 [ 42.127021][ T435] kobject_add_internal+0x766/0xda0 [ 42.132199][ T435] kobject_add+0x14c/0x210 [ 42.136585][ T435] ? _raw_spin_lock+0xa3/0x1b0 [ 42.141324][ T435] ? kobject_init+0x1e0/0x1e0 [ 42.145989][ T435] ? __kasan_check_write+0x14/0x20 [ 42.151074][ T435] ? mutex_unlock+0x1d/0x40 [ 42.155549][ T435] ? get_device_parent+0x2c5/0x430 [ 42.160636][ T435] device_add+0x3ca/0xbd0 [ 42.164944][ T435] __device_add_disk+0x7c1/0x11b0 [ 42.169944][ T435] ? device_add_disk+0x40/0x40 [ 42.174685][ T435] ? vsprintf+0x40/0x40 [ 42.178903][ T435] device_add_disk+0x2a/0x40 [ 42.183468][ T435] loop_add+0x533/0x770 [ 42.187599][ T435] loop_control_ioctl+0x564/0x740 [ 42.192600][ T435] ? loop_remove+0xb0/0xb0 [ 42.196996][ T435] ? __fget_files+0x310/0x370 [ 42.201649][ T435] ? security_file_ioctl+0xb1/0xd0 [ 42.206736][ T435] ? loop_remove+0xb0/0xb0 [ 42.211130][ T435] __se_sys_ioctl+0x115/0x190 [ 42.215789][ T435] __x64_sys_ioctl+0x7b/0x90 [ 42.220358][ T435] do_syscall_64+0x34/0x70 [ 42.224749][ T435] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.230614][ T435] RIP: 0033:0x7f340fac50e9 [ 42.235003][ T435] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 42.254672][ T435] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.263059][ T435] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 42.271006][ T435] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.278953][ T435] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.286899][ T435] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.294844][ T435] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 42.303106][ T435] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 42.317098][ T437] FAULT_INJECTION: forcing a failure. [ 42.317098][ T437] name failslab, interval 1, probability 0, space 0, times 0 [ 42.329933][ T437] CPU: 0 PID: 437 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.343189][ T437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.353222][ T437] Call Trace: [ 42.356489][ T437] dump_stack_lvl+0x1e2/0x24b [ 42.361137][ T437] ? panic+0x7d7/0x7d7 [ 42.365178][ T437] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.371402][ T437] ? __kasan_kmalloc+0x9/0x10 [ 42.377444][ T437] ? kobj_map+0x72/0x6f0 [ 42.383871][ T437] ? __device_add_disk+0x6e0/0x11b0 [ 42.389873][ T437] ? device_add_disk+0x2a/0x40 [ 42.394615][ T437] ? loop_control_ioctl+0x564/0x740 [ 42.399970][ T437] ? __se_sys_ioctl+0x115/0x190 [ 42.404884][ T437] ? __x64_sys_ioctl+0x7b/0x90 [ 42.409805][ T437] dump_stack+0x15/0x17 [ 42.413951][ T437] should_fail+0x3c0/0x510 [ 42.418340][ T437] ? kvasprintf_const+0x139/0x180 [ 42.423347][ T437] __should_failslab+0x9f/0xe0 [ 42.428079][ T437] should_failslab+0x9/0x20 [ 42.432553][ T437] __kmalloc_track_caller+0x5f/0x350 [ 42.437808][ T437] kstrdup_const+0x55/0x90 [ 42.442203][ T437] kvasprintf_const+0x139/0x180 [ 42.447031][ T437] kobject_set_name_vargs+0x61/0x120 [ 42.452286][ T437] dev_set_name+0xd1/0x120 [ 42.457122][ T437] ? __kmalloc+0x1f7/0x360 [ 42.461516][ T437] ? get_device+0x30/0x30 [ 42.465821][ T437] ? kobj_map+0x6ad/0x6f0 [ 42.470136][ T437] __device_add_disk+0x733/0x11b0 [ 42.475139][ T437] ? device_add_disk+0x40/0x40 [ 42.479890][ T437] ? vsprintf+0x40/0x40 [ 42.484023][ T437] device_add_disk+0x2a/0x40 [ 42.488601][ T437] loop_add+0x533/0x770 [ 42.492753][ T437] loop_control_ioctl+0x564/0x740 [ 42.497760][ T437] ? loop_remove+0xb0/0xb0 [ 42.502160][ T437] ? __fget_files+0x310/0x370 [ 42.506814][ T437] ? security_file_ioctl+0xb1/0xd0 [ 42.511909][ T437] ? loop_remove+0xb0/0xb0 [ 42.516311][ T437] __se_sys_ioctl+0x115/0x190 [ 42.520965][ T437] __x64_sys_ioctl+0x7b/0x90 [ 42.525542][ T437] do_syscall_64+0x34/0x70 [ 42.529933][ T437] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.535796][ T437] RIP: 0033:0x7f340fac50e9 [ 42.540186][ T437] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 42.559763][ T437] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.568150][ T437] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 42.576105][ T437] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.584051][ T437] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.591998][ T437] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.599945][ T437] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 42.616056][ T439] FAULT_INJECTION: forcing a failure. [ 42.616056][ T439] name failslab, interval 1, probability 0, space 0, times 0 [ 42.628712][ T439] CPU: 1 PID: 439 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.640826][ T439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.650854][ T439] Call Trace: [ 42.654119][ T439] dump_stack_lvl+0x1e2/0x24b [ 42.658763][ T439] ? panic+0x7d7/0x7d7 [ 42.662803][ T439] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.668319][ T439] ? __kasan_kmalloc+0x9/0x10 [ 42.673313][ T439] ? kobj_map+0x72/0x6f0 [ 42.677539][ T439] ? __device_add_disk+0x6e0/0x11b0 [ 42.682705][ T439] ? device_add_disk+0x2a/0x40 [ 42.687441][ T439] ? loop_control_ioctl+0x564/0x740 [ 42.692621][ T439] ? __se_sys_ioctl+0x115/0x190 [ 42.697453][ T439] ? __x64_sys_ioctl+0x7b/0x90 [ 42.702204][ T439] dump_stack+0x15/0x17 [ 42.706333][ T439] should_fail+0x3c0/0x510 [ 42.710729][ T439] ? kvasprintf_const+0x139/0x180 [ 42.715735][ T439] __should_failslab+0x9f/0xe0 [ 42.720473][ T439] should_failslab+0x9/0x20 [ 42.724974][ T439] __kmalloc_track_caller+0x5f/0x350 [ 42.730404][ T439] kstrdup_const+0x55/0x90 [ 42.734796][ T439] kvasprintf_const+0x139/0x180 [ 42.739623][ T439] kobject_set_name_vargs+0x61/0x120 [ 42.744980][ T439] dev_set_name+0xd1/0x120 [ 42.749372][ T439] ? __kmalloc+0x1f7/0x360 [ 42.753759][ T439] ? get_device+0x30/0x30 [ 42.758058][ T439] ? kobj_map+0x6ad/0x6f0 [ 42.762360][ T439] __device_add_disk+0x733/0x11b0 [ 42.767369][ T439] ? device_add_disk+0x40/0x40 [ 42.772113][ T439] ? vsprintf+0x40/0x40 [ 42.776243][ T439] device_add_disk+0x2a/0x40 [ 42.780823][ T439] loop_add+0x533/0x770 [ 42.785050][ T439] loop_control_ioctl+0x564/0x740 [ 42.790051][ T439] ? loop_remove+0xb0/0xb0 [ 42.794443][ T439] ? __fget_files+0x310/0x370 [ 42.799094][ T439] ? security_file_ioctl+0xb1/0xd0 [ 42.804301][ T439] ? loop_remove+0xb0/0xb0 [ 42.808691][ T439] __se_sys_ioctl+0x115/0x190 [ 42.813346][ T439] __x64_sys_ioctl+0x7b/0x90 [ 42.817917][ T439] do_syscall_64+0x34/0x70 [ 42.822306][ T439] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.828197][ T439] RIP: 0033:0x7f340fac50e9 [ 42.832707][ T439] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 42.852289][ T439] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.860678][ T439] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 42.868623][ T439] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.876571][ T439] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 42.884516][ T439] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 42.892459][ T439] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 42.908137][ T441] FAULT_INJECTION: forcing a failure. [ 42.908137][ T441] name failslab, interval 1, probability 0, space 0, times 0 [ 42.920819][ T441] CPU: 1 PID: 441 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 42.933030][ T441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.943060][ T441] Call Trace: [ 42.946338][ T441] dump_stack_lvl+0x1e2/0x24b [ 42.950986][ T441] ? panic+0x7d7/0x7d7 [ 42.955026][ T441] ? bfq_pos_tree_add_move+0x43e/0x43e [ 42.960468][ T441] dump_stack+0x15/0x17 [ 42.964595][ T441] should_fail+0x3c0/0x510 [ 42.968986][ T441] __should_failslab+0x9f/0xe0 [ 42.973722][ T441] should_failslab+0x9/0x20 [ 42.978196][ T441] kmem_cache_alloc+0x3f/0x300 [ 42.982930][ T441] ? __kernfs_new_node+0xdb/0x6e0 [ 42.987924][ T441] __kernfs_new_node+0xdb/0x6e0 [ 42.992745][ T441] ? mutex_unlock+0x1d/0x40 [ 42.997220][ T441] ? kernfs_new_node+0x170/0x170 [ 43.002125][ T441] ? kernfs_add_one+0x4c5/0x5e0 [ 43.006946][ T441] ? kernfs_create_dir_ns+0x1eb/0x230 [ 43.012285][ T441] kernfs_new_node+0x97/0x170 [ 43.016932][ T441] __kernfs_create_file+0x4a/0x270 [ 43.022017][ T441] sysfs_add_file_mode_ns+0x273/0x320 [ 43.027450][ T441] sysfs_create_file_ns+0x191/0x2a0 [ 43.032711][ T441] ? sysfs_add_file_mode_ns+0x320/0x320 [ 43.038226][ T441] ? __kasan_check_write+0x14/0x20 [ 43.043308][ T441] ? __up_read+0x16/0x100 [ 43.047606][ T441] device_create_file+0x110/0x1d0 [ 43.052658][ T441] device_add+0x496/0xbd0 [ 43.056963][ T441] __device_add_disk+0x7c1/0x11b0 [ 43.061961][ T441] ? device_add_disk+0x40/0x40 [ 43.066696][ T441] ? vsprintf+0x40/0x40 [ 43.070821][ T441] device_add_disk+0x2a/0x40 [ 43.075383][ T441] loop_add+0x533/0x770 [ 43.079509][ T441] loop_control_ioctl+0x564/0x740 [ 43.084503][ T441] ? loop_remove+0xb0/0xb0 [ 43.088892][ T441] ? __fget_files+0x310/0x370 [ 43.093545][ T441] ? security_file_ioctl+0xb1/0xd0 [ 43.098659][ T441] ? loop_remove+0xb0/0xb0 [ 43.103050][ T441] __se_sys_ioctl+0x115/0x190 [ 43.107699][ T441] __x64_sys_ioctl+0x7b/0x90 [ 43.112260][ T441] do_syscall_64+0x34/0x70 [ 43.116645][ T441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.122513][ T441] RIP: 0033:0x7f340fac50e9 [ 43.126902][ T441] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 43.146482][ T441] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.154875][ T441] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 43.162821][ T441] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.171411][ T441] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.179448][ T441] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.187394][ T441] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 43.196577][ T23] kauditd_printk_skb: 3 callbacks suppressed [ 43.196586][ T23] audit: type=1400 audit(1653576010.179:161): avc: denied { remove_name } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 43.225553][ T23] audit: type=1400 audit(1653576010.179:162): avc: denied { rename } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 43.232141][ T443] FAULT_INJECTION: forcing a failure. [ 43.232141][ T443] name failslab, interval 1, probability 0, space 0, times 0 [ 43.248011][ T23] audit: type=1400 audit(1653576010.179:163): avc: denied { create } for pid=142 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 43.260294][ T443] CPU: 0 PID: 443 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 43.292815][ T443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.302933][ T443] Call Trace: [ 43.306203][ T443] dump_stack_lvl+0x1e2/0x24b [ 43.310852][ T443] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.316368][ T443] dump_stack+0x15/0x17 [ 43.320499][ T443] should_fail+0x3c0/0x510 [ 43.324889][ T443] ? __kernfs_new_node+0x99/0x6e0 [ 43.329973][ T443] __should_failslab+0x9f/0xe0 [ 43.334717][ T443] should_failslab+0x9/0x20 [ 43.339331][ T443] __kmalloc_track_caller+0x5f/0x350 [ 43.344616][ T443] ? __kernel_text_address+0x9a/0x110 [ 43.349972][ T443] ? unwind_get_return_address+0x4c/0x90 [ 43.355583][ T443] kstrdup_const+0x55/0x90 [ 43.359973][ T443] __kernfs_new_node+0x99/0x6e0 [ 43.364968][ T443] ? stack_trace_save+0x12d/0x1f0 [ 43.369964][ T443] ? kernfs_new_node+0x170/0x170 [ 43.374958][ T443] ? stack_trace_snprint+0x100/0x100 [ 43.380215][ T443] ? dput+0x2ce/0x320 [ 43.384169][ T443] ? device_add+0xbe/0xbd0 [ 43.388558][ T443] kernfs_create_dir_ns+0x9b/0x230 [ 43.393814][ T443] sysfs_create_dir_ns+0x181/0x390 [ 43.398897][ T443] ? sysfs_warn_dup+0xa0/0xa0 [ 43.403550][ T443] kobject_add_internal+0x766/0xda0 [ 43.409001][ T443] kobject_add+0x14c/0x210 [ 43.413398][ T443] ? _raw_spin_lock+0xa3/0x1b0 [ 43.418143][ T443] ? kobject_init+0x1e0/0x1e0 [ 43.422804][ T443] ? __kasan_check_write+0x14/0x20 [ 43.427898][ T443] ? mutex_unlock+0x1d/0x40 [ 43.432375][ T443] ? get_device_parent+0x2c5/0x430 [ 43.437457][ T443] device_add+0x3ca/0xbd0 [ 43.441762][ T443] __device_add_disk+0x7c1/0x11b0 [ 43.446758][ T443] ? device_add_disk+0x40/0x40 [ 43.451492][ T443] ? vsprintf+0x40/0x40 [ 43.455634][ T443] device_add_disk+0x2a/0x40 [ 43.460200][ T443] loop_add+0x533/0x770 [ 43.464333][ T443] loop_control_ioctl+0x564/0x740 [ 43.469381][ T443] ? loop_remove+0xb0/0xb0 [ 43.473773][ T443] ? __fget_files+0x310/0x370 [ 43.478501][ T443] ? security_file_ioctl+0xb1/0xd0 [ 43.483695][ T443] ? loop_remove+0xb0/0xb0 [ 43.488133][ T443] __se_sys_ioctl+0x115/0x190 [ 43.492801][ T443] __x64_sys_ioctl+0x7b/0x90 [ 43.497372][ T443] do_syscall_64+0x34/0x70 [ 43.501766][ T443] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.507643][ T443] RIP: 0033:0x7f340fac50e9 [ 43.512120][ T443] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 43.531715][ T443] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.540111][ T443] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 43.548072][ T443] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.556022][ T443] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.563971][ T443] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.571951][ T443] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 43.580216][ T443] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 43.594528][ T445] FAULT_INJECTION: forcing a failure. [ 43.594528][ T445] name failslab, interval 1, probability 0, space 0, times 0 [ 43.607184][ T445] CPU: 0 PID: 445 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 43.619306][ T445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.629339][ T445] Call Trace: [ 43.632617][ T445] dump_stack_lvl+0x1e2/0x24b [ 43.637267][ T445] ? panic+0x7d7/0x7d7 [ 43.641330][ T445] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.646767][ T445] ? memcpy+0x56/0x70 [ 43.650722][ T445] dump_stack+0x15/0x17 [ 43.654850][ T445] should_fail+0x3c0/0x510 [ 43.659263][ T445] ? device_add+0xbe/0xbd0 [ 43.663707][ T445] __should_failslab+0x9f/0xe0 [ 43.668543][ T445] should_failslab+0x9/0x20 [ 43.673028][ T445] kmem_cache_alloc_trace+0x3a/0x330 [ 43.678471][ T445] ? __kasan_check_write+0x14/0x20 [ 43.683846][ T445] device_add+0xbe/0xbd0 [ 43.688065][ T445] __device_add_disk+0x7c1/0x11b0 [ 43.693068][ T445] ? device_add_disk+0x40/0x40 [ 43.697804][ T445] ? vsprintf+0x40/0x40 [ 43.701947][ T445] device_add_disk+0x2a/0x40 [ 43.706513][ T445] loop_add+0x533/0x770 [ 43.710647][ T445] loop_control_ioctl+0x564/0x740 [ 43.715651][ T445] ? loop_remove+0xb0/0xb0 [ 43.720041][ T445] ? __fget_files+0x310/0x370 [ 43.724694][ T445] ? security_file_ioctl+0xb1/0xd0 [ 43.730127][ T445] ? loop_remove+0xb0/0xb0 [ 43.734537][ T445] __se_sys_ioctl+0x115/0x190 [ 43.739186][ T445] __x64_sys_ioctl+0x7b/0x90 [ 43.743752][ T445] do_syscall_64+0x34/0x70 [ 43.748231][ T445] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.754097][ T445] RIP: 0033:0x7f340fac50e9 [ 43.758491][ T445] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 43.778168][ T445] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.787167][ T445] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 43.795421][ T445] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.803419][ T445] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 43.813427][ T445] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 43.821380][ T445] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 43.835281][ T447] FAULT_INJECTION: forcing a failure. [ 43.835281][ T447] name failslab, interval 1, probability 0, space 0, times 0 [ 43.852805][ T447] CPU: 0 PID: 447 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 43.864948][ T447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.874981][ T447] Call Trace: [ 43.878250][ T447] dump_stack_lvl+0x1e2/0x24b [ 43.882899][ T447] ? panic+0x7d7/0x7d7 [ 43.886938][ T447] ? bfq_pos_tree_add_move+0x43e/0x43e [ 43.892803][ T447] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 43.897804][ T447] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 43.902978][ T447] dump_stack+0x15/0x17 [ 43.907106][ T447] should_fail+0x3c0/0x510 [ 43.911493][ T447] ? kobj_map+0x72/0x6f0 [ 43.915707][ T447] __should_failslab+0x9f/0xe0 [ 43.920442][ T447] should_failslab+0x9/0x20 [ 43.924940][ T447] __kmalloc+0x60/0x360 [ 43.929074][ T447] ? __device_add_disk+0x585/0x11b0 [ 43.934245][ T447] kobj_map+0x72/0x6f0 [ 43.938287][ T447] ? exact_match+0x20/0x20 [ 43.942676][ T447] ? bdev_check_media_change+0x4c0/0x4c0 [ 43.948281][ T447] __device_add_disk+0x6e0/0x11b0 [ 43.953280][ T447] ? device_add_disk+0x40/0x40 [ 43.958019][ T447] ? vsprintf+0x40/0x40 [ 43.962152][ T447] device_add_disk+0x2a/0x40 [ 43.966715][ T447] loop_add+0x533/0x770 [ 43.970846][ T447] loop_control_ioctl+0x564/0x740 [ 43.975842][ T447] ? loop_remove+0xb0/0xb0 [ 43.980356][ T447] ? __fget_files+0x310/0x370 [ 43.985010][ T447] ? security_file_ioctl+0xb1/0xd0 [ 43.990117][ T447] ? loop_remove+0xb0/0xb0 [ 43.994511][ T447] __se_sys_ioctl+0x115/0x190 [ 43.999159][ T447] __x64_sys_ioctl+0x7b/0x90 [ 44.003723][ T447] do_syscall_64+0x34/0x70 [ 44.008201][ T447] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.014069][ T447] RIP: 0033:0x7f340fac50e9 [ 44.018465][ T447] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 44.038041][ T447] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.046437][ T447] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 44.054559][ T447] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.062506][ T447] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.070449][ T447] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.078393][ T447] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 44.147931][ T451] FAULT_INJECTION: forcing a failure. [ 44.147931][ T451] name failslab, interval 1, probability 0, space 0, times 0 [ 44.160576][ T451] CPU: 1 PID: 451 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 44.172701][ T451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.182738][ T451] Call Trace: [ 44.186010][ T451] dump_stack_lvl+0x1e2/0x24b [ 44.190660][ T451] ? panic+0x7d7/0x7d7 [ 44.194703][ T451] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.200135][ T451] dump_stack+0x15/0x17 [ 44.204268][ T451] should_fail+0x3c0/0x510 [ 44.208658][ T451] __should_failslab+0x9f/0xe0 [ 44.213400][ T451] should_failslab+0x9/0x20 [ 44.217878][ T451] kmem_cache_alloc+0x3f/0x300 [ 44.222617][ T451] ? __kernfs_new_node+0xdb/0x6e0 [ 44.227614][ T451] __kernfs_new_node+0xdb/0x6e0 [ 44.232437][ T451] ? mutex_unlock+0x1d/0x40 [ 44.236913][ T451] ? kernfs_new_node+0x170/0x170 [ 44.241840][ T451] ? kernfs_add_one+0x4c5/0x5e0 [ 44.246668][ T451] ? kernfs_create_dir_ns+0x1eb/0x230 [ 44.252015][ T451] kernfs_new_node+0x97/0x170 [ 44.256663][ T451] __kernfs_create_file+0x4a/0x270 [ 44.261747][ T451] sysfs_add_file_mode_ns+0x273/0x320 [ 44.267090][ T451] sysfs_create_file_ns+0x191/0x2a0 [ 44.272273][ T451] ? sysfs_add_file_mode_ns+0x320/0x320 [ 44.277791][ T451] ? __kasan_check_write+0x14/0x20 [ 44.282875][ T451] ? __up_read+0x16/0x100 [ 44.287188][ T451] device_create_file+0x110/0x1d0 [ 44.292188][ T451] device_add+0x496/0xbd0 [ 44.296491][ T451] __device_add_disk+0x7c1/0x11b0 [ 44.301488][ T451] ? device_add_disk+0x40/0x40 [ 44.306227][ T451] ? vsprintf+0x40/0x40 [ 44.310357][ T451] device_add_disk+0x2a/0x40 [ 44.314922][ T451] loop_add+0x533/0x770 [ 44.319050][ T451] loop_control_ioctl+0x564/0x740 [ 44.324046][ T451] ? loop_remove+0xb0/0xb0 [ 44.328433][ T451] ? __fget_files+0x310/0x370 [ 44.333081][ T451] ? security_file_ioctl+0xb1/0xd0 [ 44.338165][ T451] ? loop_remove+0xb0/0xb0 [ 44.342561][ T451] __se_sys_ioctl+0x115/0x190 [ 44.347212][ T451] __x64_sys_ioctl+0x7b/0x90 [ 44.351781][ T451] do_syscall_64+0x34/0x70 [ 44.356175][ T451] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.362038][ T451] RIP: 0033:0x7f340fac50e9 [ 44.366429][ T451] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 44.386017][ T451] RSP: 002b:00007f340fa1a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.394426][ T451] RAX: ffffffffffffffda RBX: 00007f340fbd8030 RCX: 00007f340fac50e9 [ 44.402381][ T451] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.410333][ T451] RBP: 00007f340fa1a1d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.418283][ T451] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.426234][ T451] R13: 00007ffd71be58ef R14: 00007f340fa1a300 R15: 0000000000022000 [ 44.440060][ T453] FAULT_INJECTION: forcing a failure. [ 44.440060][ T453] name failslab, interval 1, probability 0, space 0, times 0 [ 44.452690][ T453] CPU: 1 PID: 453 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 44.464817][ T453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.474856][ T453] Call Trace: [ 44.478126][ T453] dump_stack_lvl+0x1e2/0x24b [ 44.482777][ T453] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.488224][ T453] dump_stack+0x15/0x17 [ 44.492360][ T453] should_fail+0x3c0/0x510 [ 44.496762][ T453] ? __kernfs_new_node+0x99/0x6e0 [ 44.501763][ T453] __should_failslab+0x9f/0xe0 [ 44.506502][ T453] should_failslab+0x9/0x20 [ 44.510981][ T453] __kmalloc_track_caller+0x5f/0x350 [ 44.516241][ T453] ? __kernel_text_address+0x9a/0x110 [ 44.521588][ T453] ? unwind_get_return_address+0x4c/0x90 [ 44.527317][ T453] kstrdup_const+0x55/0x90 [ 44.531710][ T453] __kernfs_new_node+0x99/0x6e0 [ 44.536533][ T453] ? stack_trace_save+0x12d/0x1f0 [ 44.541530][ T453] ? kernfs_new_node+0x170/0x170 [ 44.546438][ T453] ? stack_trace_snprint+0x100/0x100 [ 44.551826][ T453] ? dput+0x2ce/0x320 [ 44.555783][ T453] ? device_add+0xbe/0xbd0 [ 44.560173][ T453] kernfs_create_dir_ns+0x9b/0x230 [ 44.565256][ T453] sysfs_create_dir_ns+0x181/0x390 [ 44.570344][ T453] ? sysfs_warn_dup+0xa0/0xa0 [ 44.574997][ T453] kobject_add_internal+0x766/0xda0 [ 44.580169][ T453] kobject_add+0x14c/0x210 [ 44.584558][ T453] ? _raw_spin_lock+0xa3/0x1b0 [ 44.589296][ T453] ? kobject_init+0x1e0/0x1e0 [ 44.593950][ T453] ? __kasan_check_write+0x14/0x20 [ 44.599033][ T453] ? mutex_unlock+0x1d/0x40 [ 44.603508][ T453] ? get_device_parent+0x2c5/0x430 [ 44.608599][ T453] device_add+0x3ca/0xbd0 [ 44.612906][ T453] __device_add_disk+0x7c1/0x11b0 [ 44.617991][ T453] ? device_add_disk+0x40/0x40 [ 44.622774][ T453] ? vsprintf+0x40/0x40 [ 44.626904][ T453] device_add_disk+0x2a/0x40 [ 44.631466][ T453] loop_add+0x533/0x770 [ 44.635602][ T453] loop_control_ioctl+0x564/0x740 [ 44.640605][ T453] ? loop_remove+0xb0/0xb0 [ 44.645258][ T453] ? __fget_files+0x310/0x370 [ 44.649909][ T453] ? security_file_ioctl+0xb1/0xd0 [ 44.655078][ T453] ? loop_remove+0xb0/0xb0 [ 44.659467][ T453] __se_sys_ioctl+0x115/0x190 [ 44.664118][ T453] __x64_sys_ioctl+0x7b/0x90 [ 44.668763][ T453] do_syscall_64+0x34/0x70 [ 44.673154][ T453] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.679025][ T453] RIP: 0033:0x7f340fac50e9 [ 44.683416][ T453] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 44.703000][ T453] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.711486][ T453] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 44.719444][ T453] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.727396][ T453] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 44.735342][ T453] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 44.743311][ T453] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 44.752691][ T453] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 44.769356][ T455] FAULT_INJECTION: forcing a failure. [ 44.769356][ T455] name failslab, interval 1, probability 0, space 0, times 0 [ 44.782048][ T455] CPU: 0 PID: 455 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 44.794190][ T455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.804223][ T455] Call Trace: [ 44.807489][ T455] dump_stack_lvl+0x1e2/0x24b [ 44.812577][ T455] ? bfq_pos_tree_add_move+0x43e/0x43e [ 44.818024][ T455] dump_stack+0x15/0x17 [ 44.822171][ T455] should_fail+0x3c0/0x510 [ 44.826586][ T455] ? __kernfs_new_node+0x99/0x6e0 [ 44.831940][ T455] __should_failslab+0x9f/0xe0 [ 44.836694][ T455] should_failslab+0x9/0x20 [ 44.841184][ T455] __kmalloc_track_caller+0x5f/0x350 [ 44.846447][ T455] ? __kernel_text_address+0x9a/0x110 [ 44.851792][ T455] ? unwind_get_return_address+0x4c/0x90 [ 44.857417][ T455] kstrdup_const+0x55/0x90 [ 44.861937][ T455] __kernfs_new_node+0x99/0x6e0 [ 44.866770][ T455] ? stack_trace_save+0x12d/0x1f0 [ 44.871863][ T455] ? kernfs_new_node+0x170/0x170 [ 44.876774][ T455] ? stack_trace_snprint+0x100/0x100 [ 44.882037][ T455] ? dput+0x2ce/0x320 [ 44.885999][ T455] ? device_add+0xbe/0xbd0 [ 44.890387][ T455] kernfs_create_dir_ns+0x9b/0x230 [ 44.895470][ T455] sysfs_create_dir_ns+0x181/0x390 [ 44.900555][ T455] ? sysfs_warn_dup+0xa0/0xa0 [ 44.905206][ T455] kobject_add_internal+0x766/0xda0 [ 44.910462][ T455] kobject_add+0x14c/0x210 [ 44.914850][ T455] ? _raw_spin_lock+0xa3/0x1b0 [ 44.919590][ T455] ? kobject_init+0x1e0/0x1e0 [ 44.924238][ T455] ? __kasan_check_write+0x14/0x20 [ 44.929319][ T455] ? mutex_unlock+0x1d/0x40 [ 44.933795][ T455] ? get_device_parent+0x2c5/0x430 [ 44.938873][ T455] device_add+0x3ca/0xbd0 [ 44.943180][ T455] __device_add_disk+0x7c1/0x11b0 [ 44.948174][ T455] ? device_add_disk+0x40/0x40 [ 44.952907][ T455] ? vsprintf+0x40/0x40 [ 44.957209][ T455] device_add_disk+0x2a/0x40 [ 44.961772][ T455] loop_add+0x533/0x770 [ 44.965899][ T455] loop_control_ioctl+0x564/0x740 [ 44.970897][ T455] ? loop_remove+0xb0/0xb0 [ 44.975291][ T455] ? __fget_files+0x310/0x370 [ 44.979939][ T455] ? security_file_ioctl+0xb1/0xd0 [ 44.985022][ T455] ? loop_remove+0xb0/0xb0 [ 44.989503][ T455] __se_sys_ioctl+0x115/0x190 [ 44.994236][ T455] __x64_sys_ioctl+0x7b/0x90 [ 44.998884][ T455] do_syscall_64+0x34/0x70 [ 45.003283][ T455] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.009322][ T455] RIP: 0033:0x7f340fac50e9 [ 45.013711][ T455] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.033644][ T455] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.042029][ T455] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 45.049986][ T455] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.057930][ T455] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.065875][ T455] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.073817][ T455] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 45.081924][ T455] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 45.096571][ T457] FAULT_INJECTION: forcing a failure. [ 45.096571][ T457] name failslab, interval 1, probability 0, space 0, times 0 [ 45.109250][ T457] CPU: 0 PID: 457 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 45.121373][ T457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.131811][ T457] Call Trace: [ 45.137942][ T457] dump_stack_lvl+0x1e2/0x24b [ 45.142594][ T457] ? panic+0x7d7/0x7d7 [ 45.146634][ T457] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.152068][ T457] ? memcpy+0x56/0x70 [ 45.156224][ T457] dump_stack+0x15/0x17 [ 45.160360][ T457] should_fail+0x3c0/0x510 [ 45.164751][ T457] ? device_add+0xbe/0xbd0 [ 45.169140][ T457] __should_failslab+0x9f/0xe0 [ 45.174035][ T457] should_failslab+0x9/0x20 [ 45.178558][ T457] kmem_cache_alloc_trace+0x3a/0x330 [ 45.183825][ T457] ? __kasan_check_write+0x14/0x20 [ 45.188971][ T457] device_add+0xbe/0xbd0 [ 45.193191][ T457] __device_add_disk+0x7c1/0x11b0 [ 45.198189][ T457] ? device_add_disk+0x40/0x40 [ 45.203366][ T457] ? vsprintf+0x40/0x40 [ 45.207863][ T457] device_add_disk+0x2a/0x40 [ 45.212423][ T457] loop_add+0x533/0x770 [ 45.216553][ T457] loop_control_ioctl+0x564/0x740 [ 45.221553][ T457] ? loop_remove+0xb0/0xb0 [ 45.225942][ T457] ? __fget_files+0x310/0x370 [ 45.230594][ T457] ? security_file_ioctl+0xb1/0xd0 [ 45.235677][ T457] ? loop_remove+0xb0/0xb0 [ 45.240064][ T457] __se_sys_ioctl+0x115/0x190 [ 45.244809][ T457] __x64_sys_ioctl+0x7b/0x90 [ 45.249373][ T457] do_syscall_64+0x34/0x70 [ 45.253761][ T457] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.259625][ T457] RIP: 0033:0x7f340fac50e9 [ 45.264011][ T457] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.283593][ T457] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.292068][ T457] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 45.300014][ T457] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.308042][ T457] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.315988][ T457] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.323949][ T457] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 45.338728][ T459] FAULT_INJECTION: forcing a failure. [ 45.338728][ T459] name failslab, interval 1, probability 0, space 0, times 0 [ 45.351393][ T459] CPU: 0 PID: 459 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 45.364864][ T459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.375542][ T459] Call Trace: [ 45.378809][ T459] dump_stack_lvl+0x1e2/0x24b [ 45.384350][ T459] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.389778][ T459] dump_stack+0x15/0x17 [ 45.393914][ T459] should_fail+0x3c0/0x510 [ 45.398480][ T459] ? __kernfs_new_node+0x99/0x6e0 [ 45.403521][ T459] __should_failslab+0x9f/0xe0 [ 45.408255][ T459] should_failslab+0x9/0x20 [ 45.412732][ T459] __kmalloc_track_caller+0x5f/0x350 [ 45.418073][ T459] ? __kernel_text_address+0x9a/0x110 [ 45.423517][ T459] ? unwind_get_return_address+0x4c/0x90 [ 45.429218][ T459] kstrdup_const+0x55/0x90 [ 45.433788][ T459] __kernfs_new_node+0x99/0x6e0 [ 45.438875][ T459] ? stack_trace_save+0x12d/0x1f0 [ 45.444670][ T459] ? kernfs_new_node+0x170/0x170 [ 45.449593][ T459] ? stack_trace_snprint+0x100/0x100 [ 45.454971][ T459] ? dput+0x2ce/0x320 [ 45.458987][ T459] ? device_add+0xbe/0xbd0 [ 45.463387][ T459] kernfs_create_dir_ns+0x9b/0x230 [ 45.468514][ T459] sysfs_create_dir_ns+0x181/0x390 [ 45.473609][ T459] ? sysfs_warn_dup+0xa0/0xa0 [ 45.478266][ T459] kobject_add_internal+0x766/0xda0 [ 45.483454][ T459] kobject_add+0x14c/0x210 [ 45.488017][ T459] ? _raw_spin_lock+0xa3/0x1b0 [ 45.492845][ T459] ? kobject_init+0x1e0/0x1e0 [ 45.497498][ T459] ? __kasan_check_write+0x14/0x20 [ 45.502582][ T459] ? mutex_unlock+0x1d/0x40 [ 45.507062][ T459] ? get_device_parent+0x2c5/0x430 [ 45.512158][ T459] device_add+0x3ca/0xbd0 [ 45.516469][ T459] __device_add_disk+0x7c1/0x11b0 [ 45.521476][ T459] ? device_add_disk+0x40/0x40 [ 45.526232][ T459] ? vsprintf+0x40/0x40 [ 45.537400][ T459] device_add_disk+0x2a/0x40 [ 45.541969][ T459] loop_add+0x533/0x770 [ 45.546097][ T459] loop_control_ioctl+0x564/0x740 [ 45.551094][ T459] ? loop_remove+0xb0/0xb0 [ 45.555541][ T459] ? __fget_files+0x310/0x370 [ 45.560192][ T459] ? security_file_ioctl+0xb1/0xd0 [ 45.565274][ T459] ? loop_remove+0xb0/0xb0 [ 45.569665][ T459] __se_sys_ioctl+0x115/0x190 [ 45.574316][ T459] __x64_sys_ioctl+0x7b/0x90 [ 45.578880][ T459] do_syscall_64+0x34/0x70 [ 45.583269][ T459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.589134][ T459] RIP: 0033:0x7f340fac50e9 [ 45.593524][ T459] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.613192][ T459] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.621577][ T459] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 45.629524][ T459] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.637472][ T459] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.645417][ T459] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.653371][ T459] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 45.661542][ T459] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 45.675697][ T461] FAULT_INJECTION: forcing a failure. [ 45.675697][ T461] name failslab, interval 1, probability 0, space 0, times 0 [ 45.688607][ T461] CPU: 1 PID: 461 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 45.700732][ T461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.710773][ T461] Call Trace: [ 45.714059][ T461] dump_stack_lvl+0x1e2/0x24b [ 45.718727][ T461] ? panic+0x7d7/0x7d7 [ 45.722944][ T461] ? bfq_pos_tree_add_move+0x43e/0x43e [ 45.728384][ T461] dump_stack+0x15/0x17 [ 45.732520][ T461] should_fail+0x3c0/0x510 [ 45.736933][ T461] __should_failslab+0x9f/0xe0 [ 45.741682][ T461] should_failslab+0x9/0x20 [ 45.746164][ T461] kmem_cache_alloc+0x3f/0x300 [ 45.750935][ T461] ? __kernfs_new_node+0xdb/0x6e0 [ 45.755937][ T461] __kernfs_new_node+0xdb/0x6e0 [ 45.760765][ T461] ? stack_trace_save+0x12d/0x1f0 [ 45.765856][ T461] ? kernfs_new_node+0x170/0x170 [ 45.770772][ T461] ? stack_trace_snprint+0x100/0x100 [ 45.776144][ T461] ? dput+0x2ce/0x320 [ 45.780106][ T461] ? device_add+0xbe/0xbd0 [ 45.784501][ T461] kernfs_create_dir_ns+0x9b/0x230 [ 45.789595][ T461] sysfs_create_dir_ns+0x181/0x390 [ 45.794689][ T461] ? sysfs_warn_dup+0xa0/0xa0 [ 45.799345][ T461] kobject_add_internal+0x766/0xda0 [ 45.804520][ T461] kobject_add+0x14c/0x210 [ 45.808909][ T461] ? _raw_spin_lock+0xa3/0x1b0 [ 45.813647][ T461] ? kobject_init+0x1e0/0x1e0 [ 45.818298][ T461] ? __kasan_check_write+0x14/0x20 [ 45.823385][ T461] ? mutex_unlock+0x1d/0x40 [ 45.827895][ T461] ? get_device_parent+0x2c5/0x430 [ 45.833007][ T461] device_add+0x3ca/0xbd0 [ 45.837313][ T461] __device_add_disk+0x7c1/0x11b0 [ 45.842324][ T461] ? device_add_disk+0x40/0x40 [ 45.847068][ T461] ? vsprintf+0x40/0x40 [ 45.851200][ T461] device_add_disk+0x2a/0x40 [ 45.855765][ T461] loop_add+0x533/0x770 [ 45.860070][ T461] loop_control_ioctl+0x564/0x740 [ 45.865110][ T461] ? loop_remove+0xb0/0xb0 [ 45.869521][ T461] ? __fget_files+0x310/0x370 [ 45.874171][ T461] ? security_file_ioctl+0xb1/0xd0 [ 45.879345][ T461] ? loop_remove+0xb0/0xb0 [ 45.883736][ T461] __se_sys_ioctl+0x115/0x190 [ 45.888386][ T461] __x64_sys_ioctl+0x7b/0x90 [ 45.892951][ T461] do_syscall_64+0x34/0x70 [ 45.897353][ T461] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.903237][ T461] RIP: 0033:0x7f340fac50e9 [ 45.907648][ T461] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.927508][ T461] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.936222][ T461] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 45.944206][ T461] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.952607][ T461] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 45.960582][ T461] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 45.968533][ T461] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 45.977683][ T461] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 45.992355][ T463] FAULT_INJECTION: forcing a failure. [ 45.992355][ T463] name failslab, interval 1, probability 0, space 0, times 0 [ 46.005465][ T463] CPU: 0 PID: 463 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.019083][ T463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.029892][ T463] Call Trace: [ 46.033187][ T463] dump_stack_lvl+0x1e2/0x24b [ 46.037843][ T463] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.043639][ T463] dump_stack+0x15/0x17 [ 46.047853][ T463] should_fail+0x3c0/0x510 [ 46.052262][ T463] ? __kernfs_new_node+0x99/0x6e0 [ 46.057283][ T463] __should_failslab+0x9f/0xe0 [ 46.062030][ T463] should_failslab+0x9/0x20 [ 46.066566][ T463] __kmalloc_track_caller+0x5f/0x350 [ 46.072208][ T463] ? __kernel_text_address+0x9a/0x110 [ 46.078256][ T463] ? unwind_get_return_address+0x4c/0x90 [ 46.084237][ T463] kstrdup_const+0x55/0x90 [ 46.088855][ T463] __kernfs_new_node+0x99/0x6e0 [ 46.094135][ T463] ? stack_trace_save+0x12d/0x1f0 [ 46.099259][ T463] ? kernfs_new_node+0x170/0x170 [ 46.104193][ T463] ? stack_trace_snprint+0x100/0x100 [ 46.109495][ T463] ? dput+0x2ce/0x320 [ 46.113470][ T463] ? device_add+0xbe/0xbd0 [ 46.117880][ T463] kernfs_create_dir_ns+0x9b/0x230 [ 46.123079][ T463] sysfs_create_dir_ns+0x181/0x390 [ 46.128212][ T463] ? sysfs_warn_dup+0xa0/0xa0 [ 46.133015][ T463] kobject_add_internal+0x766/0xda0 [ 46.139813][ T463] kobject_add+0x14c/0x210 [ 46.144404][ T463] ? _raw_spin_lock+0xa3/0x1b0 [ 46.149159][ T463] ? kobject_init+0x1e0/0x1e0 [ 46.153874][ T463] ? __kasan_check_write+0x14/0x20 [ 46.158981][ T463] ? mutex_unlock+0x1d/0x40 [ 46.163557][ T463] ? get_device_parent+0x2c5/0x430 [ 46.168645][ T463] device_add+0x3ca/0xbd0 [ 46.172993][ T463] __device_add_disk+0x7c1/0x11b0 [ 46.178420][ T463] ? device_add_disk+0x40/0x40 [ 46.183275][ T463] ? vsprintf+0x40/0x40 [ 46.187675][ T463] device_add_disk+0x2a/0x40 [ 46.192358][ T463] loop_add+0x533/0x770 [ 46.196527][ T463] loop_control_ioctl+0x564/0x740 [ 46.201546][ T463] ? loop_remove+0xb0/0xb0 [ 46.205963][ T463] ? __fget_files+0x310/0x370 [ 46.210627][ T463] ? security_file_ioctl+0xb1/0xd0 [ 46.215818][ T463] ? loop_remove+0xb0/0xb0 [ 46.220310][ T463] __se_sys_ioctl+0x115/0x190 [ 46.225039][ T463] __x64_sys_ioctl+0x7b/0x90 [ 46.229624][ T463] do_syscall_64+0x34/0x70 [ 46.234027][ T463] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.239900][ T463] RIP: 0033:0x7f340fac50e9 [ 46.244300][ T463] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.264158][ T463] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.272640][ T463] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 46.280594][ T463] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.288545][ T463] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.296528][ T463] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.304473][ T463] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 46.312779][ T463] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 46.327438][ T465] FAULT_INJECTION: forcing a failure. [ 46.327438][ T465] name failslab, interval 1, probability 0, space 0, times 0 [ 46.340077][ T465] CPU: 1 PID: 465 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.352207][ T465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.362367][ T465] Call Trace: [ 46.365730][ T465] dump_stack_lvl+0x1e2/0x24b [ 46.370387][ T465] ? panic+0x7d7/0x7d7 [ 46.374970][ T465] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.380456][ T465] ? __kasan_kmalloc+0x9/0x10 [ 46.385114][ T465] ? kobj_map+0x72/0x6f0 [ 46.389336][ T465] ? __device_add_disk+0x6e0/0x11b0 [ 46.394518][ T465] ? device_add_disk+0x2a/0x40 [ 46.399261][ T465] ? loop_control_ioctl+0x564/0x740 [ 46.404529][ T465] ? __se_sys_ioctl+0x115/0x190 [ 46.409352][ T465] ? __x64_sys_ioctl+0x7b/0x90 [ 46.414107][ T465] dump_stack+0x15/0x17 [ 46.418243][ T465] should_fail+0x3c0/0x510 [ 46.422634][ T465] ? kvasprintf_const+0x139/0x180 [ 46.427650][ T465] __should_failslab+0x9f/0xe0 [ 46.432394][ T465] should_failslab+0x9/0x20 [ 46.436872][ T465] __kmalloc_track_caller+0x5f/0x350 [ 46.442132][ T465] kstrdup_const+0x55/0x90 [ 46.446531][ T465] kvasprintf_const+0x139/0x180 [ 46.451355][ T465] kobject_set_name_vargs+0x61/0x120 [ 46.456615][ T465] dev_set_name+0xd1/0x120 [ 46.461074][ T465] ? __kmalloc+0x1f7/0x360 [ 46.465489][ T465] ? get_device+0x30/0x30 [ 46.469801][ T465] ? kobj_map+0x6ad/0x6f0 [ 46.474207][ T465] __device_add_disk+0x733/0x11b0 [ 46.479207][ T465] ? device_add_disk+0x40/0x40 [ 46.483954][ T465] ? vsprintf+0x40/0x40 [ 46.488121][ T465] device_add_disk+0x2a/0x40 [ 46.492689][ T465] loop_add+0x533/0x770 [ 46.496824][ T465] loop_control_ioctl+0x564/0x740 [ 46.501825][ T465] ? loop_remove+0xb0/0xb0 [ 46.506217][ T465] ? __fget_files+0x310/0x370 [ 46.510870][ T465] ? security_file_ioctl+0xb1/0xd0 [ 46.515964][ T465] ? loop_remove+0xb0/0xb0 [ 46.520387][ T465] __se_sys_ioctl+0x115/0x190 [ 46.525039][ T465] __x64_sys_ioctl+0x7b/0x90 [ 46.529608][ T465] do_syscall_64+0x34/0x70 [ 46.533998][ T465] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.539864][ T465] RIP: 0033:0x7f340fac50e9 [ 46.544268][ T465] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.563855][ T465] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.572248][ T465] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 46.580196][ T465] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.588145][ T465] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.596096][ T465] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.604044][ T465] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 46.619374][ T467] FAULT_INJECTION: forcing a failure. [ 46.619374][ T467] name failslab, interval 1, probability 0, space 0, times 0 [ 46.632068][ T467] CPU: 1 PID: 467 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.644186][ T467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.654217][ T467] Call Trace: [ 46.657488][ T467] dump_stack_lvl+0x1e2/0x24b [ 46.662137][ T467] ? panic+0x7d7/0x7d7 [ 46.666274][ T467] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.671718][ T467] ? memcpy+0x56/0x70 [ 46.675687][ T467] dump_stack+0x15/0x17 [ 46.679821][ T467] should_fail+0x3c0/0x510 [ 46.684222][ T467] ? device_add+0xbe/0xbd0 [ 46.688615][ T467] __should_failslab+0x9f/0xe0 [ 46.693351][ T467] should_failslab+0x9/0x20 [ 46.697837][ T467] kmem_cache_alloc_trace+0x3a/0x330 [ 46.703354][ T467] ? __kasan_check_write+0x14/0x20 [ 46.708594][ T467] device_add+0xbe/0xbd0 [ 46.712821][ T467] __device_add_disk+0x7c1/0x11b0 [ 46.717846][ T467] ? device_add_disk+0x40/0x40 [ 46.722592][ T467] ? vsprintf+0x40/0x40 [ 46.726724][ T467] device_add_disk+0x2a/0x40 [ 46.731291][ T467] loop_add+0x533/0x770 [ 46.735424][ T467] loop_control_ioctl+0x564/0x740 [ 46.740423][ T467] ? loop_remove+0xb0/0xb0 [ 46.744816][ T467] ? __fget_files+0x310/0x370 [ 46.749469][ T467] ? security_file_ioctl+0xb1/0xd0 [ 46.754627][ T467] ? loop_remove+0xb0/0xb0 [ 46.759039][ T467] __se_sys_ioctl+0x115/0x190 [ 46.763696][ T467] __x64_sys_ioctl+0x7b/0x90 [ 46.768264][ T467] do_syscall_64+0x34/0x70 [ 46.772658][ T467] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.778523][ T467] RIP: 0033:0x7f340fac50e9 [ 46.782913][ T467] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.802593][ T467] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.810991][ T467] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 46.818970][ T467] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.826932][ T467] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 46.834898][ T467] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 46.842877][ T467] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 46.857606][ T469] FAULT_INJECTION: forcing a failure. [ 46.857606][ T469] name failslab, interval 1, probability 0, space 0, times 0 [ 46.870326][ T469] CPU: 1 PID: 469 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 46.882458][ T469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.892498][ T469] Call Trace: [ 46.895782][ T469] dump_stack_lvl+0x1e2/0x24b [ 46.900704][ T469] ? bfq_pos_tree_add_move+0x43e/0x43e [ 46.906142][ T469] dump_stack+0x15/0x17 [ 46.910290][ T469] should_fail+0x3c0/0x510 [ 46.914691][ T469] ? __kernfs_new_node+0x99/0x6e0 [ 46.919779][ T469] __should_failslab+0x9f/0xe0 [ 46.924548][ T469] should_failslab+0x9/0x20 [ 46.929133][ T469] __kmalloc_track_caller+0x5f/0x350 [ 46.934491][ T469] ? __kernel_text_address+0x9a/0x110 [ 46.939842][ T469] ? unwind_get_return_address+0x4c/0x90 [ 46.945537][ T469] kstrdup_const+0x55/0x90 [ 46.949950][ T469] __kernfs_new_node+0x99/0x6e0 [ 46.954778][ T469] ? stack_trace_save+0x12d/0x1f0 [ 46.959772][ T469] ? kernfs_new_node+0x170/0x170 [ 46.964683][ T469] ? stack_trace_snprint+0x100/0x100 [ 46.969942][ T469] ? dput+0x2ce/0x320 [ 46.973902][ T469] ? device_add+0xbe/0xbd0 [ 46.978292][ T469] kernfs_create_dir_ns+0x9b/0x230 [ 46.983381][ T469] sysfs_create_dir_ns+0x181/0x390 [ 46.988467][ T469] ? sysfs_warn_dup+0xa0/0xa0 [ 46.993119][ T469] kobject_add_internal+0x766/0xda0 [ 46.998290][ T469] kobject_add+0x14c/0x210 [ 47.002681][ T469] ? _raw_spin_lock+0xa3/0x1b0 [ 47.007417][ T469] ? kobject_init+0x1e0/0x1e0 [ 47.012068][ T469] ? __kasan_check_write+0x14/0x20 [ 47.017175][ T469] ? mutex_unlock+0x1d/0x40 [ 47.021651][ T469] ? get_device_parent+0x2c5/0x430 [ 47.026739][ T469] device_add+0x3ca/0xbd0 [ 47.031048][ T469] __device_add_disk+0x7c1/0x11b0 [ 47.036147][ T469] ? device_add_disk+0x40/0x40 [ 47.040897][ T469] ? vsprintf+0x40/0x40 [ 47.045028][ T469] device_add_disk+0x2a/0x40 [ 47.049593][ T469] loop_add+0x533/0x770 [ 47.053726][ T469] loop_control_ioctl+0x564/0x740 [ 47.058723][ T469] ? loop_remove+0xb0/0xb0 [ 47.063114][ T469] ? __fget_files+0x310/0x370 [ 47.067771][ T469] ? security_file_ioctl+0xb1/0xd0 [ 47.072855][ T469] ? loop_remove+0xb0/0xb0 [ 47.077246][ T469] __se_sys_ioctl+0x115/0x190 [ 47.081906][ T469] __x64_sys_ioctl+0x7b/0x90 [ 47.086489][ T469] do_syscall_64+0x34/0x70 [ 47.090966][ T469] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.096834][ T469] RIP: 0033:0x7f340fac50e9 [ 47.101230][ T469] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.120817][ T469] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.129308][ T469] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 47.137267][ T469] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.145216][ T469] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 2022/05/26 14:40:14 executed programs: 28 [ 47.153250][ T469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.161337][ T469] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 47.169750][ T469] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 47.186314][ T471] FAULT_INJECTION: forcing a failure. [ 47.186314][ T471] name failslab, interval 1, probability 0, space 0, times 0 [ 47.199364][ T471] CPU: 1 PID: 471 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 47.211502][ T471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.221539][ T471] Call Trace: [ 47.224812][ T471] dump_stack_lvl+0x1e2/0x24b [ 47.229467][ T471] ? panic+0x7d7/0x7d7 [ 47.233511][ T471] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.238946][ T471] dump_stack+0x15/0x17 [ 47.243079][ T471] should_fail+0x3c0/0x510 [ 47.247469][ T471] __should_failslab+0x9f/0xe0 [ 47.252214][ T471] should_failslab+0x9/0x20 [ 47.256691][ T471] kmem_cache_alloc+0x3f/0x300 [ 47.261425][ T471] ? __kernfs_new_node+0xdb/0x6e0 [ 47.266422][ T471] __kernfs_new_node+0xdb/0x6e0 [ 47.271245][ T471] ? stack_trace_save+0x12d/0x1f0 [ 47.276248][ T471] ? kernfs_new_node+0x170/0x170 [ 47.281181][ T471] ? stack_trace_snprint+0x100/0x100 [ 47.286436][ T471] ? dput+0x2ce/0x320 [ 47.290449][ T471] ? device_add+0xbe/0xbd0 [ 47.294859][ T471] kernfs_create_dir_ns+0x9b/0x230 [ 47.300046][ T471] sysfs_create_dir_ns+0x181/0x390 [ 47.305137][ T471] ? sysfs_warn_dup+0xa0/0xa0 [ 47.309792][ T471] kobject_add_internal+0x766/0xda0 [ 47.314964][ T471] kobject_add+0x14c/0x210 [ 47.319355][ T471] ? _raw_spin_lock+0xa3/0x1b0 [ 47.324090][ T471] ? kobject_init+0x1e0/0x1e0 [ 47.328741][ T471] ? __kasan_check_write+0x14/0x20 [ 47.333828][ T471] ? mutex_unlock+0x1d/0x40 [ 47.338321][ T471] ? get_device_parent+0x2c5/0x430 [ 47.343423][ T471] device_add+0x3ca/0xbd0 [ 47.347748][ T471] __device_add_disk+0x7c1/0x11b0 [ 47.352750][ T471] ? device_add_disk+0x40/0x40 [ 47.357498][ T471] ? vsprintf+0x40/0x40 [ 47.361639][ T471] device_add_disk+0x2a/0x40 [ 47.366273][ T471] loop_add+0x533/0x770 [ 47.370507][ T471] loop_control_ioctl+0x564/0x740 [ 47.375507][ T471] ? loop_remove+0xb0/0xb0 [ 47.379901][ T471] ? __fget_files+0x310/0x370 [ 47.384726][ T471] ? security_file_ioctl+0xb1/0xd0 [ 47.389814][ T471] ? loop_remove+0xb0/0xb0 [ 47.394229][ T471] __se_sys_ioctl+0x115/0x190 [ 47.398879][ T471] __x64_sys_ioctl+0x7b/0x90 [ 47.403446][ T471] do_syscall_64+0x34/0x70 [ 47.407843][ T471] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.413712][ T471] RIP: 0033:0x7f340fac50e9 [ 47.418247][ T471] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.437841][ T471] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.446248][ T471] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 47.454204][ T471] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.462157][ T471] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.470110][ T471] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.478067][ T471] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 47.486477][ T471] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 47.499637][ T473] FAULT_INJECTION: forcing a failure. [ 47.499637][ T473] name failslab, interval 1, probability 0, space 0, times 0 [ 47.512260][ T473] CPU: 1 PID: 473 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 47.524399][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.534444][ T473] Call Trace: [ 47.537721][ T473] dump_stack_lvl+0x1e2/0x24b [ 47.542373][ T473] ? panic+0x7d7/0x7d7 [ 47.546415][ T473] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.551853][ T473] ? memcpy+0x56/0x70 [ 47.555814][ T473] dump_stack+0x15/0x17 [ 47.559963][ T473] should_fail+0x3c0/0x510 [ 47.564355][ T473] ? device_add+0xbe/0xbd0 [ 47.568807][ T473] __should_failslab+0x9f/0xe0 [ 47.573553][ T473] should_failslab+0x9/0x20 [ 47.578034][ T473] kmem_cache_alloc_trace+0x3a/0x330 [ 47.583291][ T473] ? __kasan_check_write+0x14/0x20 [ 47.588377][ T473] device_add+0xbe/0xbd0 [ 47.592710][ T473] __device_add_disk+0x7c1/0x11b0 [ 47.597712][ T473] ? device_add_disk+0x40/0x40 [ 47.604189][ T473] ? vsprintf+0x40/0x40 [ 47.608322][ T473] device_add_disk+0x2a/0x40 [ 47.612889][ T473] loop_add+0x533/0x770 [ 47.617154][ T473] loop_control_ioctl+0x564/0x740 [ 47.622168][ T473] ? loop_remove+0xb0/0xb0 [ 47.626567][ T473] ? __fget_files+0x310/0x370 [ 47.631228][ T473] ? security_file_ioctl+0xb1/0xd0 [ 47.636316][ T473] ? loop_remove+0xb0/0xb0 [ 47.640808][ T473] __se_sys_ioctl+0x115/0x190 [ 47.645482][ T473] __x64_sys_ioctl+0x7b/0x90 [ 47.650053][ T473] do_syscall_64+0x34/0x70 [ 47.654445][ T473] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.660319][ T473] RIP: 0033:0x7f340fac50e9 [ 47.664743][ T473] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.684416][ T473] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.692809][ T473] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 47.700757][ T473] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.708833][ T473] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.716880][ T473] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.724836][ T473] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 47.740344][ T475] FAULT_INJECTION: forcing a failure. [ 47.740344][ T475] name failslab, interval 1, probability 0, space 0, times 0 [ 47.753137][ T475] CPU: 0 PID: 475 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 47.765257][ T475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.775305][ T475] Call Trace: [ 47.778584][ T475] dump_stack_lvl+0x1e2/0x24b [ 47.783233][ T475] ? panic+0x7d7/0x7d7 [ 47.787274][ T475] ? bfq_pos_tree_add_move+0x43e/0x43e [ 47.792706][ T475] ? memcpy+0x56/0x70 [ 47.796661][ T475] dump_stack+0x15/0x17 [ 47.800799][ T475] should_fail+0x3c0/0x510 [ 47.805192][ T475] ? device_add+0xbe/0xbd0 [ 47.809591][ T475] __should_failslab+0x9f/0xe0 [ 47.814335][ T475] should_failslab+0x9/0x20 [ 47.818812][ T475] kmem_cache_alloc_trace+0x3a/0x330 [ 47.824084][ T475] ? __kasan_check_write+0x14/0x20 [ 47.829175][ T475] device_add+0xbe/0xbd0 [ 47.833406][ T475] __device_add_disk+0x7c1/0x11b0 [ 47.838412][ T475] ? device_add_disk+0x40/0x40 [ 47.843162][ T475] ? vsprintf+0x40/0x40 [ 47.847293][ T475] device_add_disk+0x2a/0x40 [ 47.851861][ T475] loop_add+0x533/0x770 [ 47.855996][ T475] loop_control_ioctl+0x564/0x740 [ 47.860994][ T475] ? loop_remove+0xb0/0xb0 [ 47.865387][ T475] ? __fget_files+0x310/0x370 [ 47.870039][ T475] ? security_file_ioctl+0xb1/0xd0 [ 47.875124][ T475] ? loop_remove+0xb0/0xb0 [ 47.879513][ T475] __se_sys_ioctl+0x115/0x190 [ 47.884215][ T475] __x64_sys_ioctl+0x7b/0x90 [ 47.888782][ T475] do_syscall_64+0x34/0x70 [ 47.893176][ T475] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.899043][ T475] RIP: 0033:0x7f340fac50e9 [ 47.903442][ T475] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 47.923116][ T475] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.931509][ T475] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 47.939460][ T475] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.947421][ T475] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 47.955373][ T475] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 47.963352][ T475] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 47.977843][ T477] FAULT_INJECTION: forcing a failure. [ 47.977843][ T477] name failslab, interval 1, probability 0, space 0, times 0 [ 47.990645][ T477] CPU: 0 PID: 477 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.002776][ T477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.012815][ T477] Call Trace: [ 48.016173][ T477] dump_stack_lvl+0x1e2/0x24b [ 48.020827][ T477] ? panic+0x7d7/0x7d7 [ 48.024870][ T477] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.030304][ T477] ? memcpy+0x56/0x70 [ 48.034262][ T477] dump_stack+0x15/0x17 [ 48.038393][ T477] should_fail+0x3c0/0x510 [ 48.042791][ T477] ? device_add+0xbe/0xbd0 [ 48.047270][ T477] __should_failslab+0x9f/0xe0 [ 48.052142][ T477] should_failslab+0x9/0x20 [ 48.056621][ T477] kmem_cache_alloc_trace+0x3a/0x330 [ 48.061883][ T477] ? __kasan_check_write+0x14/0x20 [ 48.066978][ T477] device_add+0xbe/0xbd0 [ 48.071198][ T477] __device_add_disk+0x7c1/0x11b0 [ 48.076197][ T477] ? device_add_disk+0x40/0x40 [ 48.080946][ T477] ? vsprintf+0x40/0x40 [ 48.085078][ T477] device_add_disk+0x2a/0x40 [ 48.089645][ T477] loop_add+0x533/0x770 [ 48.093775][ T477] loop_control_ioctl+0x564/0x740 [ 48.098773][ T477] ? loop_remove+0xb0/0xb0 [ 48.103164][ T477] ? __fget_files+0x310/0x370 [ 48.107817][ T477] ? security_file_ioctl+0xb1/0xd0 [ 48.112902][ T477] ? loop_remove+0xb0/0xb0 [ 48.117291][ T477] __se_sys_ioctl+0x115/0x190 [ 48.121943][ T477] __x64_sys_ioctl+0x7b/0x90 [ 48.126512][ T477] do_syscall_64+0x34/0x70 [ 48.130906][ T477] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.136777][ T477] RIP: 0033:0x7f340fac50e9 [ 48.141202][ T477] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 48.160785][ T477] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.169172][ T477] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 48.177120][ T477] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.185075][ T477] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.193114][ T477] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.201150][ T477] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 48.214325][ T479] FAULT_INJECTION: forcing a failure. [ 48.214325][ T479] name failslab, interval 1, probability 0, space 0, times 0 [ 48.226974][ T479] CPU: 0 PID: 479 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.239100][ T479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.249133][ T479] Call Trace: [ 48.252413][ T479] dump_stack_lvl+0x1e2/0x24b [ 48.257065][ T479] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.262500][ T479] dump_stack+0x15/0x17 [ 48.266628][ T479] should_fail+0x3c0/0x510 [ 48.271017][ T479] ? __kernfs_new_node+0x99/0x6e0 [ 48.276014][ T479] __should_failslab+0x9f/0xe0 [ 48.280762][ T479] should_failslab+0x9/0x20 [ 48.285237][ T479] __kmalloc_track_caller+0x5f/0x350 [ 48.290494][ T479] ? __kernel_text_address+0x9a/0x110 [ 48.295843][ T479] ? unwind_get_return_address+0x4c/0x90 [ 48.301447][ T479] kstrdup_const+0x55/0x90 [ 48.305840][ T479] __kernfs_new_node+0x99/0x6e0 [ 48.310665][ T479] ? stack_trace_save+0x12d/0x1f0 [ 48.315660][ T479] ? kernfs_new_node+0x170/0x170 [ 48.320569][ T479] ? stack_trace_snprint+0x100/0x100 [ 48.325825][ T479] ? dput+0x2ce/0x320 [ 48.329782][ T479] ? device_add+0xbe/0xbd0 [ 48.334178][ T479] kernfs_create_dir_ns+0x9b/0x230 [ 48.339263][ T479] sysfs_create_dir_ns+0x181/0x390 [ 48.344348][ T479] ? sysfs_warn_dup+0xa0/0xa0 [ 48.349028][ T479] kobject_add_internal+0x766/0xda0 [ 48.354204][ T479] kobject_add+0x14c/0x210 [ 48.358593][ T479] ? _raw_spin_lock+0xa3/0x1b0 [ 48.363336][ T479] ? kobject_init+0x1e0/0x1e0 [ 48.367984][ T479] ? __kasan_check_write+0x14/0x20 [ 48.373067][ T479] ? mutex_unlock+0x1d/0x40 [ 48.377544][ T479] ? get_device_parent+0x2c5/0x430 [ 48.382625][ T479] device_add+0x3ca/0xbd0 [ 48.386927][ T479] __device_add_disk+0x7c1/0x11b0 [ 48.391930][ T479] ? device_add_disk+0x40/0x40 [ 48.396669][ T479] ? vsprintf+0x40/0x40 [ 48.400799][ T479] device_add_disk+0x2a/0x40 [ 48.405361][ T479] loop_add+0x533/0x770 [ 48.409492][ T479] loop_control_ioctl+0x564/0x740 [ 48.414488][ T479] ? loop_remove+0xb0/0xb0 [ 48.418877][ T479] ? __fget_files+0x310/0x370 [ 48.423525][ T479] ? security_file_ioctl+0xb1/0xd0 [ 48.428612][ T479] ? loop_remove+0xb0/0xb0 [ 48.433002][ T479] __se_sys_ioctl+0x115/0x190 [ 48.437655][ T479] __x64_sys_ioctl+0x7b/0x90 [ 48.442224][ T479] do_syscall_64+0x34/0x70 [ 48.446620][ T479] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.452494][ T479] RIP: 0033:0x7f340fac50e9 [ 48.456883][ T479] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 48.476466][ T479] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.484865][ T479] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 48.492827][ T479] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.500786][ T479] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.508742][ T479] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.517566][ T479] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 48.525821][ T479] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 48.541314][ T481] FAULT_INJECTION: forcing a failure. [ 48.541314][ T481] name failslab, interval 1, probability 0, space 0, times 0 [ 48.554102][ T481] CPU: 1 PID: 481 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.566222][ T481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.576253][ T481] Call Trace: [ 48.579530][ T481] dump_stack_lvl+0x1e2/0x24b [ 48.584185][ T481] ? panic+0x7d7/0x7d7 [ 48.588228][ T481] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.593670][ T481] ? __kasan_kmalloc+0x9/0x10 [ 48.598323][ T481] ? kobj_map+0x72/0x6f0 [ 48.602545][ T481] ? __device_add_disk+0x6e0/0x11b0 [ 48.607714][ T481] ? device_add_disk+0x2a/0x40 [ 48.612455][ T481] ? loop_control_ioctl+0x564/0x740 [ 48.617626][ T481] ? __se_sys_ioctl+0x115/0x190 [ 48.622463][ T481] ? __x64_sys_ioctl+0x7b/0x90 [ 48.627202][ T481] dump_stack+0x15/0x17 [ 48.631330][ T481] should_fail+0x3c0/0x510 [ 48.635724][ T481] ? kvasprintf_const+0x139/0x180 [ 48.640720][ T481] __should_failslab+0x9f/0xe0 [ 48.645453][ T481] should_failslab+0x9/0x20 [ 48.649956][ T481] __kmalloc_track_caller+0x5f/0x350 [ 48.655238][ T481] kstrdup_const+0x55/0x90 [ 48.659642][ T481] kvasprintf_const+0x139/0x180 [ 48.664480][ T481] kobject_set_name_vargs+0x61/0x120 [ 48.669762][ T481] dev_set_name+0xd1/0x120 [ 48.674166][ T481] ? __kmalloc+0x1f7/0x360 [ 48.678567][ T481] ? get_device+0x30/0x30 [ 48.682875][ T481] ? kobj_map+0x6ad/0x6f0 [ 48.687181][ T481] __device_add_disk+0x733/0x11b0 [ 48.692186][ T481] ? device_add_disk+0x40/0x40 [ 48.696927][ T481] ? vsprintf+0x40/0x40 [ 48.701069][ T481] device_add_disk+0x2a/0x40 [ 48.705640][ T481] loop_add+0x533/0x770 [ 48.709863][ T481] loop_control_ioctl+0x564/0x740 [ 48.714857][ T481] ? loop_remove+0xb0/0xb0 [ 48.719265][ T481] ? __fget_files+0x310/0x370 [ 48.723926][ T481] ? security_file_ioctl+0xb1/0xd0 [ 48.729058][ T481] ? loop_remove+0xb0/0xb0 [ 48.733463][ T481] __se_sys_ioctl+0x115/0x190 [ 48.738128][ T481] __x64_sys_ioctl+0x7b/0x90 [ 48.742699][ T481] do_syscall_64+0x34/0x70 [ 48.747100][ T481] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.752969][ T481] RIP: 0033:0x7f340fac50e9 [ 48.757360][ T481] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 48.776945][ T481] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.785345][ T481] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 48.793306][ T481] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.801261][ T481] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 48.809223][ T481] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 48.817177][ T481] R13: 00007ffd71be58ef R14: 00007f340fa3b300 R15: 0000000000022000 [ 48.831839][ T483] FAULT_INJECTION: forcing a failure. [ 48.831839][ T483] name failslab, interval 1, probability 0, space 0, times 0 [ 48.844593][ T483] CPU: 1 PID: 483 Comm: syz-executor.0 Tainted: G B W 5.10.117-syzkaller-986967-g0974b8411a58-dirty #0 [ 48.856990][ T483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.867078][ T483] Call Trace: [ 48.870362][ T483] dump_stack_lvl+0x1e2/0x24b [ 48.875029][ T483] ? panic+0x7d7/0x7d7 [ 48.879074][ T483] ? bfq_pos_tree_add_move+0x43e/0x43e [ 48.884508][ T483] ? __kasan_kmalloc+0x9/0x10 [ 48.889158][ T483] ? kobj_map+0x72/0x6f0 [ 48.893378][ T483] ? __device_add_disk+0x6e0/0x11b0 [ 48.898550][ T483] ? device_add_disk+0x2a/0x40 [ 48.903298][ T483] ? loop_control_ioctl+0x564/0x740 [ 48.908477][ T483] ? __se_sys_ioctl+0x115/0x190 [ 48.913311][ T483] ? __x64_sys_ioctl+0x7b/0x90 [ 48.918061][ T483] dump_stack+0x15/0x17 [ 48.922203][ T483] should_fail+0x3c0/0x510 [ 48.926601][ T483] ? kvasprintf_const+0x139/0x180 [ 48.931609][ T483] __should_failslab+0x9f/0xe0 [ 48.936353][ T483] should_failslab+0x9/0x20 [ 48.940839][ T483] __kmalloc_track_caller+0x5f/0x350 [ 48.946109][ T483] kstrdup_const+0x55/0x90 [ 48.951199][ T483] kvasprintf_const+0x139/0x180 [ 48.956029][ T483] kobject_set_name_vargs+0x61/0x120 [ 48.962598][ T483] dev_set_name+0xd1/0x120 [ 48.966997][ T483] ? __kmalloc+0x1f7/0x360 [ 48.971481][ T483] ? get_device+0x30/0x30 [ 48.975805][ T483] ? kobj_map+0x6ad/0x6f0 [ 48.980114][ T483] __device_add_disk+0x733/0x11b0 [ 48.986419][ T483] ? device_add_disk+0x40/0x40 [ 48.991171][ T483] ? vsprintf+0x40/0x40 [ 48.995480][ T483] device_add_disk+0x2a/0x40 [ 49.000054][ T483] loop_add+0x533/0x770 [ 49.004291][ T483] loop_control_ioctl+0x564/0x740 [ 49.009299][ T483] ? loop_remove+0xb0/0xb0 [ 49.013691][ T483] ? __fget_files+0x310/0x370 [ 49.018378][ T483] ? security_file_ioctl+0xb1/0xd0 [ 49.023462][ T483] ? loop_remove+0xb0/0xb0 [ 49.027855][ T483] __se_sys_ioctl+0x115/0x190 [ 49.032506][ T483] __x64_sys_ioctl+0x7b/0x90 [ 49.037072][ T483] do_syscall_64+0x34/0x70 [ 49.041460][ T483] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.047337][ T483] RIP: 0033:0x7f340fac50e9 [ 49.051820][ T483] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 49.071490][ T483] RSP: 002b:00007f340fa3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.079924][ T483] RAX: ffffffffffffffda RBX: 00007f340fbd7f60 RCX: 00007f340fac50e9 [ 49.087880][ T483] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.095835][ T483] RBP: 00007f340fa3b1d0 R08: 0000000000000000 R09: 0000000000000000 [ 49.104062][ T483] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002